text:
Tuesday, 16 July 2019, 20:49
Ottawa Train Station
Ottawa ( i/ˈɒtəwə/ or /ˈɒtəwɑː/; French pronunciation: [ɔtawa]) is the capital city of Canada. It stands on the south bank of the Ottawa River in the eastern portion of Southern Ontario. Ottawa borders Gatineau, Quebec; the two form the core of the Ottawa–Gatineau census metropolitan area (CMA) and the National Capital Region (NCR). The 2011 census reported a population of 883,391 within the city, making it the fourth-largest city in Canada, and 1,236,324 within the CMA, making it the fourth-largest CMA in Canada. The City of Ottawa has since estimated it had a population of 951,727 in 2014.
Founded in 1826 as Bytown, and incorporated as "Ottawa" in 1855, the city has evolved into a political and technological centre of Canada. Its original boundaries were expanded through numerous minor annexations and were ultimately replaced by a new city incorporation and major amalgamation in 2001 which significantly increased its land area. The city name "Ottawa" was chosen in reference to the Ottawa River nearby, which is a word derived from the Algonquin word Odawa, meaning "to trade".
This page contains text from Wikipedia, the Free Encyclopedia -	https://wn.com/Ottawa
Ottawa is a city located at the confluence of the navigable Illinois River and Fox River in LaSalle County, Illinois, United States. The Illinois River is a conduit for river barges and connects Lake Michigan at Chicago, to the Mississippi River, and North America's 25,000 mile river system. The population estimate was 18,562 as of 2013. It is the county seat of LaSalle County and it is part of the Ottawa-Peru, IL Micropolitan Statistical Area.
Ottawa was the site of the first of the Lincoln-Douglas debates of 1858. During the Ottawa debate Stephen A. Douglas, leader of the Democratic Party, openly accused Abraham Lincoln of forming a secret bipartisan group of Congressmen to bring about the abolition of slavery.
The John Hossack House was a "station" on the Underground Railroad, and Ottawa was a major stop because of its rail, road, and river transportation. Citizens in the city were active within the abolitionist movement. Ottawa was the site of a famous 1859 extrication of a runaway slave named Jim Gray from a courthouse by prominent civic leaders of the time. Three of the civic leaders, John Hossack, Dr. Joseph Stout and James Stout, later stood trial in Chicago for violating the Fugitive Slave Law of 1850.
This page contains text from Wikipedia, the Free Encyclopedia -	https://wn.com/Ottawa,_Illinois
Ottawa Station (IATA: XDS) in Ottawa, Ontario, Canada, located at 200 Tremblay Road, is served by Via Rail inter-city trains connecting it to Toronto and Montreal. OC Transpo's Train rapid transit station (which, despite its name, is a bus stop) carries railway passengers into the city centre or into the eastern suburbs.
The station was designed by John B. Parkin & Associates and was built in 1966. It won a Massey Medal for architecture in 1967. In 2000, the Royal Architectural Institute of Canada named the station as one of the top 500 buildings produced in Canada during the last millennium.
Ottawa's trains once came into a large downtown Union Station a short distance from the Parliament buildings, but with the replacement of the railway tracks beside the Rideau Canal with the National Capital Commission's Colonel By Drive scenic parkway, the former station has been converted into the Government Conference Centre.
KLM runs a connecting shuttle bus from this station to Montreal Airport, exclusive for the airline's customers only.
This page contains text from Wikipedia, the Free Encyclopedia -	https://wn.com/Ottawa_Train_Station
Radio Stations - Ottawa
Calm Radio: Bachata World Caribbean Canada
CBC Music - R&B / Soul R&B Canada
Canoe FM Public Canada
CBC Radio 3 Indie Rock Canada
CFXJ-FM (FLOW 93.5) Toronto, ON R&B,Hip Hop Canada
CHRL-FM 99.5 (Planète) Roberval, Quebec Adult Contemporary,Talk Canada
CIDG-FM 101.9 (Dawg FM) Ottawa, Ontario Blues Canada
Calm Radio: Christmas Christian Contemporary Canada
CBC Music - Piano Classical Canada
CJWF-FM 95.9 (Country 95.9) Windsor, ON Country Canada
CFML-FM 107.9 (Evolution 1079) Burnaby, British Columbia Alternative,Adult Canada
CIBX-FM 106.9 (Capital FM) Fredericton, New Brunswick Adult Contemporary Canada
C-VUE 105.9 FM Varied,Oldies,Pop Canada
CHTO-AM 1690 Toronto, Ontario Varied Canada
CBC Music - Canadian Songwriters Varied Canada
CIGB-FM 102.3 (NRJ) Mauricie, Quebec Pop Canada
CKFM-FM 99.9 (9-9-9 Virgin Radio) Toronto, Ontario Varied Canada
CBC Music - Hip Hop Hip Hop Canada
Abacus.fm My Friend Irma Oldies Canada
Beatsradio Varied Canada
RDI, le Reseau de l'Information Varied Canada
CJFM-FM 95.9 (Virgin 96) Montreal, Quebec Varied,Adult Contemporary Canada
CJMV-FM 102.7 (NRJ) Val-d'Or, Quebec Pop Canada
CHUM-AM 1050 (TSN Radio 1050) Toronto, Ontario Sports Canada
CFGL-FM 105.7 (Rythme FM) Laval/Montreal, QC Adult Contemporary,Pop,Adult Canada
CJNB-AM 1050 North Battleford, SK Country Canada
Calm Radio: Gregorian Chant Religious,Christian Canada
CFBK-FM 105.5 (Moose FM) Huntsville, Ontario Adult Contemporary Canada
CBC Radio 2 - Classical Varied Canada
CIJK-FM 89.3 (K-Rock) Annapolis Valley, Nova Scotia Classic Rock Canada
RR Radio: Vancouver (BC) Railroad Talk Canada
Calm Radio: Africa World Africa Canada
CHDI-FM 102.9 (Sonic 102.9) Edmonton, AB Rock Canada
CBC Music - Adult Alternative Alternative,Adult Canada
Abacus.fm Radio Mozart Classical Canada
CKYC-FM 93.7 (Country 93) Owen Sound, ON Country Canada
Radio Maria Toronto Religious Canada
Calm Radio: Folk Folk Canada
CIMG-FM 94.1 (Eagle 94) Swift Current, SK Rock Canada
CJOT-FM 99.7 (Boom 99.7) Ottawa, Ontario Oldies Canada
CKAC-AM 730 (CKAC Sports) Montreal, Quebec Varied Canada
CKJH-AM 750 (CK750) Melfort, SK Classic Rock Canada
Abacus.fm Renaissance Lute Classical Canada
CFBG-FM (99.5 Moose FM) Muskoka, ON Adult Contemporary Canada
CKNX-FM 101.7 (The ONE) Wingham, Ontario Adult Contemporary,Pop Canada
CKBW-FM 98.1 (South Shore Radio) Bridgewater, NS Adult Contemporary Canada
CHFI-FM 98.1 Toronto, ON Adult Contemporary Canada
CKPM-FM 98.7 Port Moody, BC Adult Contemporary Canada
CKRA-FM 96.3 (Capital FM) Edmonton, Alberta 80s,70s,60s Canada
Pure Rock Radio Rock,Classic Rock Canada
CBC Music - Kids CBC Kids Canada
glasgowbusinessschool.com
asiabusinessschool.com
canadabusinessschool.com
africabusinessschool.com
saudiarabiabusinessschool.com
lawbusinessschool.com
australiabusinessschool.com
ottawapost.com
delhibusinessschool.com
tokyobusinessschool.com
leipzigbusinessschool.com
lucknowbusinessschool.com
bangalorebusinessschool.com
mytopschool.com
ottawaport.com
newyorkcitybusinessschool.com
Business School, Blind Pigs
I don't give a fuck
About numbers and statistics
I'd rather stay at home
And listen to the Misfits
I'm failing all my tests
My grades are takin' a nose dive
But I decided I don't need you to survive
'Cause I'm a, 'cause I'm a
Business school dropout
Business school, business school dropout
I ain't got no dad
With a big rich company
That i'll inherit when I finish university
Won't have a heart attack
When stocks go down
Wear a suite and tie
And be another wall street clown
You're stressed at twenty five
and it's no fun to be alive
But what the fuck! You made 'em proud
Latest News for: ottawa business school
News-Press Now 17 Jul 2019
(AP) — An Oregon business group says it will no longer try to overturn an education tax package meant to provide a $1 billion funding increase to the state's public school system ... dollars of new revenue for schools through a half a percent tax on the state's wealthiest businesses....
MCLEAN, Va.--(BUSINESS WIRE)--Jul 16, 2019-- ... He is a graduate of Executive Development Programs at the Kellogg School of Business at Northwestern University and at the Harvard Business School ... A woman-owned small business with employees located in 12 states and 19 cities nationwide, A-TEK is a 23-year partner to U.S ... Copyright Business Wire 2019....
Rats plaguing Overbrook, tenants say
CBC 17 Jul 2019
A group that advocates for tenants' rights is calling on the City of Ottawa to take action against what it says is a growing rat problem in the Overbrook neighbourhood ... ....
Hassan Diab and his supporters are calling for the immediate release of the findings of an external review into the Ottawa university professor's extradition to France over his alleged involvement in a 1980 bombing outside a Paris synagogue ... ....
Police investigate multiple gun-shop break-ins
After four break-ins at West Michigan gun shops in less than a week, police are questioning whether there's a connection between the cases.The most recent of these break-ins occurred early Sunday morning at Armory Valentine in Kentwood ... Sunday, the Ottawa County Sheriff's Office responded to a burglary ... ....
Bootstrapped edtech startup Myedubag is writing a new chapter in the K-12 segment
Also Read At this 23-year-old's school in rural Odisha, students use 3D printers, laser ... Owing to her age, Anuradha handed over the business to her son Abhinav (32) in 2018 ... It also allows parents to pay the child's school fees online ... other schools ... E-learning business....
Catskill Watershed Corp. awards nearly $200,000 in grants
Daily Freeman 17 Jul 2019
has awarded 33 grants totaling nearly $200,000 to schools and nonprofits planning watershed education programs ... • Transition Catskills, to develop a training program to help central Catskills businesses employ sustainable practices....
COLUMBUS, Ohio (AP) - Ohio would cut personal income taxes by 4%, keep a debated business tax break and change how pharmacy benefits are administered for Medicaid users to boost transparency and control those costs under a proposed two-year state budget passed Tuesday by a conference committee....
Local entrepreneurs over big names is what the Delhi government's education department is looking at to inspire students in its schools to become job creators instead of job seekers ... One segment of the curriculum is interaction between entrepreneurs and students to help them understand what it takes to start one's own business....
CITIZEN COLUMNIST: Setting the right tone from the top
SCNOW Morning News 17 Jul 2019
Taken from educators John Saphier and Michael King on the topic, "School Culture," the core values are these. ... Thanks to administrative, faculty, support staff and student buy-in, making the above the way we conducted school business enabled us to produce excellence as a school community....
Tigernu Laptop Backpack Business Backpack with USB Charging Port Computer Backpack with Laptop Compartment Anti-theft ...
CNET 17 Jul 2019
Tigernu Laptop Backpack Business Backpack with USB Charging Port Computer Backpack with Laptop Compartment Anti-theft Waterproof for Travel School Business Men Women Fit Under 15.6 inch Laptop/Macbook ... ....
Appellate court: Contractor can revive lawsuit to return $1.4 million to Montebello Unified
San Gabriel Valley Tribune 17 Jul 2019
A state appellate court Tuesday ruled a Long Beach paint company, whose lower bid for a Montebello Unified job was bypassed for one more costly, can sue the winning contractor in a case that could ultimately return the $1.4 million the school district would have saved had the school board selected the lower bidder....
Commentary: USC still has time to find an outstanding presidential candidate
The Post and Courier 17 Jul 2019
I wrote this op-ed because of my wife Norma's and my love, support and deep respect for the University of South Carolina, which is searching for a new president ... The professional schools are excellent, including the top-ranked international business school and the outstanding schools of law and medicine ... In most cases, this means a doctorate or Ph.D....


The Solar Radiometer ball with drop for hanging is the basic type of radiometer . The sphere is made of crystal Lauscha glass. In the glass body of the light mill is a rotor turned by light. The ball is on the top with a glass eye for hanging and at the bottom with a glass hook for another hanging radiometer. This article has the protected trademark of the Thuringian glassblower federation.


text:
Salisbury Caregiver Strikes it Big Playing Diamond 7s Scratch-Off
Wins the game's top prize of $100,000
A 56-year-old Salisbury woman says she can finally relax about her transportation dilemma after winning a $100,000 top prize on the Maryland Lottery's Diamond 7s scratch-off.
The retired caregiver said she found her fortune after she and a good friend made a quick grocery stop at the Food Lion in Salisbury. Once there, the winner's friend decided to buy her a few Diamond 7s scratch-offs because he knows she loves playing instant tickets.
"Once I got home and put all the groceries away, I decided to scratch the tickets my friend got me," she said. "When I saw that the ticket was saying that I won $100,000, I really couldn't believe it and then I started jumping up and down. I was so overjoyed."
The excited Wicomico County resident told Lottery officials that one of the first things she may do is buy a new car. "I've been driving the same truck for over 16 years and it has quite a few miles on it," she said. She has prayed for a way to afford a new car and said she feels that this win is the answer to her prayers.
"This is such a blessing for me and I feel like I can finally breathe a little bit better," she said with a smile. "Now I can go and buy that new convertible that I've always wanted." The Diamond 7s game debuted in 2015 and still has two top prizes of $100,000 remaining.
The retailer is also a winner. For selling the top-prize ticket in the game, the Food Lion #1211 located at 1216 Nanticoke Road in Salisbury will receive a $1,000 bonus from the Lottery.
Categories: Scratch-Offs, Winners Tags: salisbury, Diamond 7s
← Columbia Retailer Sells $50,000 Bonus Match 5 Ticket
Cardiac Echo Tech's Heart Skips a Beat after $100,000 Scratch-off Win →

redpajama_set_name: RedPajamaCommonCrawl


text:
Paderborn/Germany, April 8 2019 – The resource allocation board of the Paderborn Center for Parallel Computing (PC2) has approved the allocation of 156 million core-hours to 59 computing projects. Overall 13 large projects, requesting more than 2 million core-hours and 46 small projects (below 2 million core-hours) have been approved thereof 19 external projects of principal investigators not affiliated with Paderborn University. 76% of the allocated computing time has been granted to users from Paderborn University, 10% to users at other scientific institutions in North Rhine-Westfalia and 14% to researchers from other states in Germany. The supported projects are predominantly from the domains of condensed matter physics, physical chemistry, electrical- and mechanical engineering, and computer science. The 2019-1 call was the first call, where users could apply for resources on the new Noctua system at PC2. 21 projects have been allocated 80 million core-hours on this system alone. Three projects have been assigned 10 million or more core-hours on Noctua:
Condensed matter physics: "Photonic materials from ab-initio theory" under the principal investigator Prof. Dr. Wolf Gero Schmidt, Paderborn University (17 million core-hours on Noctua)
Physical chemistry: "DFTB calculations on water catalysis" under the principal investigator Dr. A Henao Aristizábal, Paderborn University (14.4 million core-hourse on Noctua)
Computer science: "On-the-fly machine learning" under principal investigator Prof. Dr. Eyke Hüllermeier, Paderborn University (9.9 million core-hours on Noctua and 9.9 million core-hours on Oculus)
"We are pleased to have received so many high-quality proposals from a large variety of different scientific disciplines and institutions. We are particularly encouraged that 7 projects using FPGA resources will be funded, indicating the emerging interest for this accelerator technology, which is a key competence of PC2. We have also seen steeply increasing interest in GPUs. This confirms the trend to use accelerators, which we will consider for future HPC system procurements", says Prof. Thomas D. Kühne, chairmen of the resource allocation board.
The newly approved projects will start on April 8.
Computing time on the HPC systems operated by PC2 is allocated for a period of 12 month on a competitive basis after a technical and scientific evaluation in a peer review process. For large projects there are two calls per year. The last call for proposals (2019-1) is available here. The next call for proposals will be opened in Juli 2019 and the next allocation period will start on October, 1 2019.
Prof. Dr. Thomas D. Kühne
Chairman PC2 Resource Allocation Board
Prof. Dr. Thomas Kühne
To contact page


The following is an excerpt from the Cleveland Jewish News. Click here to read the full article.
Holocaust survivors and their families gathered at Zion Memorial Park in Bedford Heights Oct. 9 for the 55th ceremony to remember the 6 million Jews killed in the Holocaust and survivors who died after the Holocaust.
The annual Fall Memorial for victims of the Holocaust was sponsored by the Kol Israel Foundation and the Jewish Federation of Cleveland. About 300 people attended the program, including 40 who identified themselves as Holocaust survivors and gathered for a photo following the program.
Read the full article Cleveland Jewish News.


The ultimate upgrade for your Traxxas X-Maxx. This is for 1 pair of our 6500 3S 11.1V Dual Core lipo packs. One left side and one right side custom wired to fit the X-Maxx battery compartment. No tray modifications required.


NOTE: The monthly prices below show the total cost INCLUDING any Line Rental charge, as required by the ASA (here). Please see our 'Optional Broadband' category for packages that exclude the Line Rental Cost.
Does ISP offer TV (IPTV) packages?
Does ISP offer Mobile Phone tariffs?
Does ISP also offer optional TV (IPTV) packages?
Does ISP also offer optional Mobile Phone tariffs?
Most ISPs charge an extra 'Connection Fee' of around £25-50 when taking broadband for the first time or up to around £100 for a new phone line install; a small fee can also apply when switching between ISPs. Many extra costs can also be hidden, more on those here: Exposing Hidden and Confusing UK Broadband ISP Charges.
Note, we try to make sure that all of the prices displayed include VAT at 20%, though some ISPs conceal this. The 'Cheapest' package shows the normal service price, except when a discount lasts 6 months+.
Broadband speed will vary depending on certain factors such as line quality, line length, network congestion and fair use policies (FUP).


Any a single person will have to put in a lot of effort to make a customized tee shirt printing business that earns a profit. Picking the most appropriate marketing approach to increase your business is not really typical. You need to check out existing marketing patterns of your picked industry if you truly want to keep your t-shirt printing organisation operating. The following standards are very crucial for the success of any organisation.
You do not have to pursue a custom-made t-shirt printing service degree to obtain the skills and understanding required to excel in organisation. Specialists suggest getting as much hands-on experience about your wanted market as possible. Every job you've ever held or will hold assists prepare you to become a flourishing tee shirt printing company owner. In spite of the number of service books you read, they cannot compare with the value of real-world skills.
An in-depth, well-designed website will be useful for your customized tee shirt printing company. A website designer should be employed to construct one for your t-shirt company. Successul sites usually include a variety of images and design templates. Never ever undervalue the value of having an active and attractive site if you want to prosper in today's business world.
All effective organisations should have a following of loyal consumers behind them. Companies that are a number of generations old normally have satisfied employee that stick around for a very long time. Great t-shirt company owners view their online reviews and scores carefully. When you receive unfavorable evaluations, you ought to work to cleaning the tarnished name by hiring an expert reputation supervisor.
If you are absolutely the owner or a personnel, you need to still constantly engage with a favorable outlook when engaging the public. It is your duty under whatever capability you have in the customized tee shirt printing organisation to make the clients feel happy and comfortable whenever they visit the t-shirt business. When Embroidered Business Shirts have employees, guarantee you offer them in-depth customer abilities training. Those customers who have actually a fantastic experience are going to tell others everything about it, which will probably be advantageous for you because your business will grow.
As a tee shirt business owner, among the most crucial things you can do is utilize excellent care in working with new workers. The brand-new prospect being thought about ought to be well-versed in all of the responsibilities expected to be performed and have all prerequisites for the task. When you employee a brand-new employee, you are responsible for their success and failures, ensure they total training and definitely comprehend their tasks. All effective companies have actually inspired and trained workers.
Despite this being your very first time, or fiftieth time to start a new t-shirt business, the procedure is never simple. https://forum.mobilelegends.com/home.php?mod=space&uid=172737 ought to constantly investigate your competition thoroughly before heading into a brand-new custom tee shirt printing organisation venture. If you prepare carefully and lay the proper foundation, you can construct a rewarding company. The web can be a fantastic tool when beginning a business.


text:
New Place for Breakfast and Lunch in Cooper-Young
Stone Soup Cafe Opens
By Lindsey Lowry/MicroMemphis Reporter
Former Buns on the Run chef Sharron Johnson has a lot on her plate once again: She is a partner, chef, and menu designer for Cooper Young's upcoming restaurant, Stone Soup Café.
Stone Soup Cafe will open September 13, at 7:00am. "It will be fashioned after my former place, Buns on the Run," says Johnson.
Stone Soup Café will be open for breakfast and lunch:
Tuesday-Saturday 11am-3:00pm
The restaurant is located at 993 S. Cooper (at the intersection of Cooper and Felix).
Johnson says, "It's a lot of space, close to 4,000 square feet." The restaurant is two stories and will use multiple rooms on both floors as seating areas. For the past few months, she has assisted in the building's preparations by painting and tearing down walls alongside the contractors.
Johnson says the establishment will be "like an eclectic blue plate. The environment will be homey with an edge. I can't say that we cater to one group. I expect all ages, all demographics. If it's anything like Buns on the Run, we had people who had just finished their job of cutting trees down sitting next to people in suits. We're as eclectic as our menu."
The menu items will feature items ranging from crepes in the morning to sandwiches for lunch. "It will be the same things Buns on the Run had with the crepes and the French toast. We'll put the homemade bread on the tables again. There will be soups, of course. Our signature soup is called the Stone Soup; it's tomato based and healthy. There will be salads and sandwiches of all kinds. We'll have two different main courses for the luncheon. One will be standard and one will change everyday," says Johnson.
Johnson says, "The least expensive item will be biscuits ranging from a couple of dollars, and $15 should be the highest price [for a meal.]"
To accommodate the many vegetarians living in the Cooper Young community, Johnson says, "Our gluten free bread is vegetation-friendly. So are our salads and I'm also making some cookies that vegetarians can eat. And of course they can eat our mushroom sandwich or vegetables; I never cook the vegetables with meat."
Buns on the Run closed in 2008. Less than three years after Buns on the Run's end, Sharon Johnson is opening another restaurant- an impressive feat in the economy's restraints on the restaurant industry.
She says, "When I closed Buns down it was only because my partner wanted to get out of business. I didn't want to sell the business and the name for someone else to change what we had worked so hard to get, so we just closed it down and sold everything out, I got so much grief for that and still today anywhere I go someone stops me and says, 'I miss Buns on the Run!'"
The current reality of Johnson's new restaurant began with only a name, "Stone Soup Café."
Johnson, Emily Bishop (the Communications Committee Chair of Cooper Young Community Association), and a few other people have been members of a social gathering for the past few years. "We call ourselves the Stone Soup Social Club. It's a gathering every Thursday night" where they eat dinner and socialize, says Johnson.
"About a year ago I told Emily that I would love to open a restaurant again and name it 'Stone Soup Café.' A year later, Steve (Emily Bishop's husband) approached me and said they found a building. It all happened so fast," says Johnson.
The name derives from a folktale. The folktale's moral promotes the virtues of sharing with the less fortunate in a close-knit community. Johnson says, "The name epitomizes what I do with restaurants- I want other people to be involved."
The logo, designed by Henry Lewis, a long-time friend of Johnson's and graphic artist teacher at Christian Brothers University, designed the logo. Johnson says "it's fashioned after the Welsh Loving Spoon. They were wooden spoons given to newly wed couples. If you look at a heart there's an 'S' facing one direction, and another 'S' facing the other direction."
The heart-shaped and double-s logo is appropriate for the alliterative 'S's in the name "Stone Soup Café."
"To us food is love. We're going to prepare food with love here. And we're in the heart of midtown." The symbolism relating the name, the heart-spoon logo, and the location ties the knot between the restaurant and the Cooper Young Community.
Johnsons says, "It's great for the community-oriented Cooper Young neighborhood. I want everybody to be apart of this. I want the clientele to bring in spoons and we're going to make a collage on the wall."
The restaurant will also feature "a fall market during the day with some local products for sale and I'll have pastries in there, too," says Johnson.
Though the building can contain many more people, fire code-enforcement laws allow no more than 50 people to be seated at once. Johnson says seating will spread throughout the house's "three dining rooms downstairs, two rooms upstairs for overflow, and that large space in the back. The seating upstairs will be used to attract the business lunches for meetings. We're one of the only places in Cooper Young where there is meeting space" A printer and wireless internet is provided to accommodate the business meetings."
She says, "There's also a beautiful area between the house and the ramp in the back yard that is perfect for outdoor seating. There will also be a couple of seats on the front porch balcony. It's adorable. It's almost like a Juliet balcony. Later on we're going to landscape the yard for seating out there. There's even a big entry hallway which can be used as a small reception."
She added, "It's a rarity in Cooper Young and we're lucky to have our own parking lot right next to the property."
Johnson says she chose to open the restaurant in the Cooper-Young area because "I've lived in the community for 30 years." She has been active in the community, serving various leadership positions on the Cooper Young Community Association since 1983.
Emily Bishop, part owner, will also work in the restaurant when she's in town. She and her mother have been friends with Johnson since they met. "We've known each other for quite a while now. We've been friends since we met. I guess she knew my work ethic and liked what I produced."
Johnson says, "If everything works out I'd say it will be about a year when we open up for dinner as well."
The building has endured many dramatic changes over the years. Previously, it served as a real estate office. Johnson says, "This house has been added onto several times. I ran into a couple who are now in their 70s and grew up in Cooper Young. They told me they remember when the house used to be a shotgun house and a dentist office. The house has seen a whole lot of changes. Hopefully this [restaurant] will be a nice change.""
For more information, call Stone Soup at (901) 922-5314.
http://www.stonesoupcafememphis.com/
http://www.facebook.com/pages/Stone-Soup-Cafe/152583234811638
http://www.bizjournals.com/memphis/print-edition/2011/06/03/experienced-chef-partner-to-bring.html


text:
American exodus
Posted on March 30, 2021 March 30, 2021 by Mike
Just the usual insightful deep dive from Codevilla.
By this century's second decade, the oligarchs who occupy the commanding heights of American life had ceased trying to persuade. Self-government has declined as corporations have wielded public powers with private discretion. America's ruling class—bipartisan, public and private—grew to disdain the rest of America's religiosity, patriotism, and tastes. But until our own time, most Americans either had not noticed their loss of status as citizens or assumed that they could vote to regain it. But the rulers inspired no confidence and ruled by pulling rank.
In 2014, Pat Caddell's study of public opinion, which he titled "We Need Smith," found that:
Eighty-six percent of all voters believe political leaders are more interested in protecting their power than in doing what's right for the American people. Eighty-three percent believe the country is run by an alliance of incumbent politicians, media pundits, lobbyists, and other interests for their own gain. Further, 79% believe that powerful interests from Wall Street banks to corporations, unions, and PACs use campaign and lobbying money to rig the system to serve themselves and that they loot the national treasury at the expense of every American. … Ninety-two percent say we must recruit and support for public office more ordinary citizens and fewer professional politicians. Not surprising when you consider that 81% believe both political parties do what's in it for them rather than fix our nation's problems.
Such figures bespeak neither conservatism nor liberalism, but widespread alienation and disdain among people who understand themselves to be subjects of a selfish power to which they have no personal connection and that exists beyond their collective control. Hence, in the runup to the 2016 election, the bipartisan ruling class entirely lost control of right-leaning voters and failed to hold on to nearly half of left-leaning ones. Opposed by both parties' hierarchies, Donald Trump won the presidency more as a social rebel than as any kind of recognizable economic or political conservative, by appealing to people whose personal style and opinions on any number of subjects deviated from what was being presented as "mainstream"—including any number of people who had previously voted for Barack Obama and for Bernie Sanders.
Trump won in 2016 as the candidate who would lead the country class out of the clutches of the ruling class—as a caricature of Caddell's Mr. Smith. The ruling class—Wall Street, K Street, Washington grifters, the educational establishment, the media, and the corporations—saw the alienation that Trump embodied as the mortal threat that it is to their own power and positions. Unable and unwilling to change their way of governing, or the system of heavily bureaucratized crony capitalism from which they so massively benefit, these people resolved to secure the votes of Blacks, Hispanics, women, and the young by encouraging them to make war on whites, men, and conservatives. "Hate thy neighbor and stick with us!" was their program. Hence the four-year campaign leading up to the 2020 election was all about hating Trump and beating down his voters on the basis of race, sex, the Russians—anything to divert from what the rampant oligarchy was doing to the rest of the country.
Ruling people by insulting and harming them is problematic, and not reversible. The use that the oligarchy made of the COVID epidemic added to insult and injury, as well as to its power, in a manner previously unimaginable. Boldly dismissing without argument the fact that viral infections cannot be stopped from running their course once they have taken root in a population, they asserted that acquiescing to indefinite cessation of social and economic activities they deemed to be nonessential would stop the disease's progression. The ensuing lockdowns, mask mandates, and other measures made life for most Americans worse in every way. But these strictures also crippled the sectors of American society independent of and resistant to the oligarchy—religious institutions and small businesses. They isolated people and limited what they could hear from and say to each other, leaving them prey to one-way propaganda narratives backed by nightly threats of mob violence.
In the first few months of 2021, it is clear that widespread compliance with institutions and leading personages on which the American system of government has long rested is no longer possible. The oligarchy exercises all earthly powers. Its theophobia dismisses heaven's. It substitutes "narratives" for truth. Because its members internalized the assumption that reason is simply what Hobbes called a scout for the passions, what Marx said is superstructural to material reality, and what the woke call "logism," it has placed itself beyond the reach of argument. It can neither admit those it deems deplorable to real citizenship— never mind to society's commanding heights—nor can it set bounds to the next round of exactions and humiliations that, having ditched persuasion, it must visit upon them.
The deplorables plainly stand no chance of dismantling the new American system. Corporate executives, not legislatures, governors, or presidents are the ones who decide what happens to the trillions of dollars created jointly by the Federal Reserve and Wall Street. They are the ones who regulate speech and attitudes, who for the most part decide who rises and who does not. And they are the part of the oligarchy most insulated from republican institutions.
New laws may be most useful for reviving old ones, such as the 1890 Sherman Antitrust Act. But the problem lies in a century's accretion of administrative arrangements, court rulings, and above all, of self-serving practices. Nor would it be possible for these elected officials to restore the republic that was founded in 1776-79, even if an economic recession or act of Providence were to deliver solid electoral victories in the Senate, House, and presidency to a party of the country class (were one to come into being). That is because the republic's substance withered over a century, and its husk collapsed over the past five years.
In our time, millions of people have grown up or been educated no longer to want or be able to live as citizens of what had been the American republic. Partisans in mind, heart, and habit, their support of the oligarchy's partisan rule has left the United States with two peoples of opposing character, aspirations, and tastes within its national borders. The government bureaucracies are led by persons selected and habituated against the deplorables. The same can be said of the educational establishment and corporate boardrooms. What sort of dictatorial power would it take to purge them? Were the deplorables to struggle for the partisan power to oppress the others, they would guarantee dysfunction at best, war at worst. That is why it makes most sense for them to assert their own freedom.
That's a pretty hefty excerpt, but even so we still only get around to the piece's central theme with that very last sentence. There's plenty more yet, so you know what you must do, Glasshoppa.
Posted in Begins At Home, Brilliant!, Counterrevolution, FUCK YOU, WAR!, Hmmm..., In it to win it, Read and Heed, This Far, No Farther, Where Do We Go from Here?
← It's turtles lies, all the way down
The Daily Donnybrook →
All good and true, but Codevilla still can't grasp the fact that Trump was not just an anti-establishment vote and that Trump was espousing policies that made him an "economic and political conservative" that would have fit right in with pre-Progressive Republicanism.
Granted in 2016 there was an argument to be made that people might believe he wasn't going to govern as an economic or political conservative but voted for him anyway on the chance he might. Her Crookedness was absolutely never going to Rule like that and why not take a chance on Trump? At least he gave voice to their concerns.
He also dances around the fact that Trump did try to enact his stated policies and was successful in many ways. He didn't start any new wars either. Trump was closer to true Republicanism than any other politician had been in 100 years, excepting perhaps Reagan and Coolidge. The final Solo Tango Codevilla tries to pull off is to completely omit any mention of the Massive Fraud in the Election that was Stolen from Trump.
Codevilla is that libertarian pundit that still can't grasp that much of Globalism, including his "Free Trade" that isn't Free or Fair to America, is detrimental to America and hence detrimental to the Country Class.
His studious avoidance of giving any credit to Trump is a flaw of his, but he does seem to be getting to the crux of the matter anyway.
100% agree on Codevilla. I always read him and agreed for the most part. And then Trump happened and Angelo was left in the dust gasping like a fish out of water. The inability to recognize that such things as tariffs are no more "conservative" than Mitch the Bitch McConnell is just one of the problems. The inability to recognize that Trump, warts and all, was an even more conservative president than Reagan is another.
I just flat stopped reading him.
Some – maybe even a lot – voted for Trump simply because he wasn't Hillary.
Others of us supported Trump because he was an upraised middle finger to the establishment: the Because Fuck You, That's Why, vote.
It's amazing how few people post 2020 recall just how big a movement the "Trump's not our solution, he's our murder weapon" was in 2016.
Yep. I can't imagine how far up your own ass your head would have to be to not see Trump as a genuine conservative. Particularly since most of those that Codevilla would classify as "conservative" have never actually conserved anything in their lives and don't intend to.
John Wilder(@john-wilder)
They try to make us believe that no actions can defeat them. That is where they are wrong.
Eighty-six percent of all voters believe political leaders are more interested in protecting their power than in doing what's right for the American people.
The other fourteen percent recognize that all political leaders have always been more interested in protecting their power than in doing what's right for the American people.
Same as it ever was.
I'm convinced that if there was ever a U.S. political leader post George Washington who did what was right for the American people, he did it completely by accident and went to his grave regretting it.


text:
Q: C++ Destructor Behavior I had a question about C++ destructor behavior, more out of curiosity than anything else. I have the following classes:
Base.h
class BaseB;

class BaseA
{
    public:
        virtual int MethodA(BaseB *param1) = 0;
};

class BaseB
{
};

Imp.h
#include "Base.h"
#include <string>

class BImp;

class AImp : public BaseA
{
    public:
        AImp();
        virtual ~AImp();

    private:
        AImp(const AImp&);
        AImp& operator= (const AImp&);

    public:
        int MethodA(BaseB *param1) { return MethodA(reinterpret_cast<BImp *>(param1)); }

    private:
        int MethodA(BImp *param1);
};

class BImp : public BaseB
{
    public:
        BImp(std::string data1, std::string data2) : m_data1(data1), m_data2(data2) { }
        ~BImp();
        std::string m_data1;
        std::string m_data2;

    private:
        BImp();
        BImp(const BImp&);
        BImp& operator= (const BImp&);
};

Now, the issue is that with this code, everything works flawlessly. However, when I make the destructor for BImp virtual, on the call to AImp::MethodA, the class BImp seems to have its data (m_data1 and m_data2) uninitialized. I've checked and made sure the contained data is correct at construction time, so I was wondering what the reason behind this could be...
Cheers!
Edit: param1 was actually a reference to B in MethodA. Looks like I over-sanitized my real code a bit too much!
Edit2: Re-arranged the code a bit to show the two different files. Tested that this code compiles, a well. Sorry about that!

A: If you are casting between related types as you do in this case, you should use static_cast or dynamic_cast, rather than reinterpret_cast, because the compiler may adjust the object pointer value while casting it to a more derived type. The result of reinterpret_cast is undefined in this case, because it just takes the pointer value and pretends it's another object without any regard for object layout.

A: MethodA takes its parameters by value. This means a copy is passed (and the copy has to be destroyed). That's my best guess for why you might have a BImpl being destroyed that you didn't expect to be, but I don't see what the virtual or non-virtual nature of A's destructor could possibly have to do with it.
But this code can't compile - you use class B in declaring the virtual function in A, but B isn't defined until later. And I don't know what's going on with that cast - you can't reinterpret_cast class types. Perhaps if you work up a test case which demonstrates your issue, and post that?

A: There's a lot of iffy stuff in this code, so I'm amazed that it works or compiles in any case.

*

*Passing parameters by value instead of reference to MethodA

*Casting a B to a BImp via reinterpret_cast -- bad idea! If you're going to cast in that direction, dynamic_cast is the safest.

*I fail to see how you're supposed to get a BImp out of a B. You are not invoking any constructors, and you have none that could be invoked that would accept a B. Your default constructor for BImp is private, and assigning a B that has no data, casted to a BImp that still has no data, to a BImp, still isn't going to give you any data!

A: Several comments:

*

*Your base classes should have virtual destructors so the derived class' dtor is called instead of the just the base class dtor when the object is deleted.

*MethodA taking a BaseB pointer as a parameter only to have the pointer reinterpreted as a BImp (a derived class of BaseB) is dangerous.  There is no guarantee something else other than BImp is passed to MethodA.  What would happen if just a BaseB object was to MethodA?  Potentially lots of bad things, I would suspect.

*I'm guessing your code "works flawlessly" because you only pass BImp to MethodA.  If you are only passing BImp to MethodA then make the signature match the intent (this has the added benefit of removing that awful reinterpret call).

A: Your code is ill-formed. It is not valid C++. In C++ language reinterpret_cast can only be used to cast between pointer types, reference types, to perform pointer-to-integer conversions (in either direction).
In your code you are trying to use reinterpret_cast to convert from type B to type BImp. This is explicitly illegal in C++. If your compiler allows this code, you have to consult your compiler's documentation in order to determine what's going on.
Other replies already mentioned "slicing". Keep in mind that this is nothing more than just a guess about specific non-standard behavior of your specific compiler. It has nothing to do with C++ language.

redpajama_set_name: RedPajamaStackExchange


The Newgulf This traditional European style home features a sizable kitchen with a breakfast area surrounded by many windows. The Great Room occupies the center of the home, providing plenty of family gathering space. The master bedroom has an excellent view of the backyard and is fully complemented with a master bath that has all of the perks.


text:
Home News Hitman 3: Screenspace Reflections Are Truly Pushed To Its Limits Says Devs
Hitman 3: Screenspace Reflections Are Truly Pushed To Its Limits Says Devs
Hitman 3 was confirmed recently and the devs have started talking about the game in detail. Creative director Mattias Engstrom talked about various aspects of Hitman 3, including performance on PS5 and different graphical elements such as Screenspace reflections.
Engstrom talked about Hitman 3 on PS5 and he mentioned that the SSD is going to allow fast loading which allows the player to do a lot of experimentation in the game. The following is what he had to say regarding screenspace reflections in Hitman 3:
Specifically, screenspace reflections are truly pushed to its limits in Hitman 3. These improvements will be added across the trilogy. The other day Dag, one of our tech artists, showed me some before and after shots on the Paris fashion show and the difference in quality was mind-blowing to me.
Not only is this going to be implemented in Hitman 3 but the other games in the trilogy are going to get better screenspace reflections as well. Which is something that fans are going to appreciate. PS5 is going to get the new game in all its glory but it is also going to get older maps from the 2 previous games which are going to look much better on the new hardware. This is something that we are waiting to see.
Engstrom confirmed that like all other Hitman games, Hitman 3 is being developed with replayability in mind. The player is going to have a lot of room and flexibility to be creative. You can deal with a mission in many different ways and you can spend as much time on a single map as you would in another game.
Let us know what you think about Hitman 3 and whether or not you are interested in checking out it when it comes out next year in January, Are you interested in playing it on the PS5?
Previous articleDustborn isn't Afraid of Being Called "SJW: The Game"
Next articleMarvel's Avengers Warzone Missions Can Be Completed In Any Order, Details Revealed


text:
BMO hails FG on N150b loan to farmers
The Buhari Media Organisation has hailed the Federal Government for providing the enabling environment for Nigerian farmers to access N150 billion loan under the Central Bank's Anchor Borrowers Programme in the last two years.
BMO, in statement signed by its Chairman, Niyi Akinsiju, and Secretary, Cassidy Madueke, said this has put Nigeria on a strong path to reducing the importation of agricultural commodities that can easily be produced locally.
The group pointed out that it was aware that the programme has helped to boost local production of rice to the extent that it has saved Nigeria about $800 million in foreign exchange.
The media group however wants the CBN and the Bank of Agriculture to ensure that all loans are paid back in line with the terms and conditions attached to the credit facilities.
It said: "It is gratifying to hear the warning by Minister of Agriculture, Audu Ogbeh that the federal government would not tolerate a situation where loans are not repaid.
"We expect that the CBN would ensure that anyone that benefits from the anchor borrowers fund has a responsibility to ensure that other farmers benefit too by repaying the loan as at when due."
The organization also wants the CBN and Bank of Agriculture to properly monitor the process, especially at the state level, considering past experiences where non-farmers had more access to agriculture inputs than actual farmers.
It said: "As the bank prepares to disburse the remaining N100bn set aside for the programme, it is necessary to monitor the process to ensure that only real farmers have access to the loans."
It wants the Agriculture Ministry to look at the possibility of working out a framework for small scale rural farmers especially those who may need funds below N1 million to also have access to loans.
This, according to BMO, is because this particular group of farmers may not be able to meet the conditions of accessing loans from CBN's anchor borrowers programme.
Tags: Buhari Media OrganisationCassidy MaduekeFederal GovernmentNiyi Akinsiju


text:
BAA London Stansted and easyjet take the lead in reducing airport noise and emissions
Published: 2:54 PM October 7, 2009 Updated: 6:41 PM November 1, 2020
A COALITION of aviation representatives, including BAA Stansted, has today (Wednesday, October 7) launched an initiative to cut aircraft noise, emissions and improve local air quality at airports. The new Departures Code of Practice promotes how aircraft
A COALITION of aviation representatives, including BAA Stansted, has today (Wednesday, October 7) launched an initiative to cut aircraft noise, emissions and improve local air quality at airports.
The new Departures Code of Practice promotes how aircraft can taxi to and from the runway with less than all engines operating, leading to significant reductions in ground noise, CO2 and NOx emissions, depending on aircraft type and operator techniques.
Stansted Airport's head of environment, Dr Andy Jefferson, said: "It's really great news that a new interim departures code of practice has been agreed. I am delighted as we helped lead the trialling of this new technique here at Stansted, working very closely with easyJet, so it is very pleasing to see all our hard work coming to fruition."
Forward momentum
Mr Jefferson continued: "We have already enjoyed success with a similar collaborative approach when we developed and subsequently updated the arrivals code of practice, which has led to the introduction of continuous descent approaches at Stansted.
"I believe this next step will help build on that excellent work, maintain our forward momentum and is further evidence of our commitment to explore new and innovative ways to address the industry's environmental impacts.
"Also, we have now established the Stansted Aircraft Emissions Working Group which has been tasked to determine how the Stansted airlines might best use the recommendations made in this code of practice."
Invested billions
The Code has been produced by a group representing airlines, airports, air traffic control, the Civil Aviation Authority and ADS - the UK's aerospace, defence and security trade body.
EasyJet's pilot manager at Stansted, George Hutton, said: "EasyJet has invested billions in the latest technology to make sure that we operate one of the cleanest, youngest and most fuel efficient fleets in the industry - the average age of our aircraft is just 3.4 years.
"We've been working in collaboration with Stansted Airport's environment team for three years to explore noise and emissions saving strategies. As a result of this work, single-engine taxiing is now part of easyJet's Standard Operating Procedures almost everywhere we fly to.
"Airlines adopting this procedure could see reductions in ground emissions of up to 30 per cent and a taxi fuel saving of up to 40 per cent depending on aircraft type and operator techniques.


text:
WES, 6, 491–504, 2021
Wind Energ. Sci., 6, 491–504, 2021
https://doi.org/10.5194/wes-6-491-2021
Surrogate-based aeroelastic design optimization of tip extensions on a modern 10 MW wind turbine
Surrogate-based aeroelastic design optimization of tip extensions on a modern 10 MW wind turbine Surrogate-based aeroelastic design optimization of tip extensions on a modern 10 MW wind... Thanasis Barlas et al.
Thanasis Barlas, Néstor Ramos-García, Georg Raimund Pirrung, and Sergio González Horcas Thanasis Barlas et al. Thanasis Barlas, Néstor Ramos-García, Georg Raimund Pirrung, and Sergio González Horcas
DTU Wind Energy, Frederiksborgvej 399, 4000 Roskilde, Denmark
Correspondence: Thanasis Barlas (tkba@dtu.dk)
Received: 28 Sep 2020 – Discussion started: 15 Oct 2020 – Revised: 08 Feb 2021 – Accepted: 22 Feb 2021 – Published: 30 Mar 2021
Advanced aeroelastically optimized tip extensions are among rotor innovation concepts which could contribute to the higher performance and lower cost of wind turbines. A novel design optimization framework for wind turbine blade tip extensions based on surrogate aeroelastic modeling is presented. An academic wind turbine is modeled in an aeroelastic code equipped with a near-wake aerodynamic module, and tip extensions with complex shapes are parametrized using 11 design variables. The design space is explored via full aeroelastic simulations in extreme turbulence, and a surrogate model is fitted to the data. Direct optimization is performed based on the surrogate model seeking to maximize the power of the retrofitted turbine within the ultimate load constraints. The presented optimized design achieves a load-neutral gain of up to 6 % in annual energy production. Its performance is further evaluated in detail by means of the near-wake model used for the generation of the surrogate model and compared with a higher-fidelity aerodynamic module comprising a hybrid filament-particle-mesh vortex method with a lifting-line implementation. A good agreement between the solvers is obtained at low turbulence levels, while differences in predicted power and flapwise blade root bending moment grow with increasing turbulence intensity.
Barlas, T., Ramos-García, N., Pirrung, G. R., and González Horcas, S.: Surrogate-based aeroelastic design optimization of tip extensions on a modern 10 MW wind turbine, Wind Energ. Sci., 6, 491–504, https://doi.org/10.5194/wes-6-491-2021, 2021.
The trend of reducing the levelized cost of energy (LCOE) of horizontal axis wind turbines through increasing rotor size has long been established. To achieve this, the challenges of scale must be overcome through innovative turbine design and control strategies (Veers, 2019). One promising blade design concept is advanced aeroelastically optimized blade tip extensions, which could drive rotor upscaling in a modular and cost effective way.
The existing bibliography relevant to wind turbine applications typically focuses on winglets and aerodynamic tip shapes purely from an aerodynamics point of view (Johansen, 2006; Gaunaa, 2007; Ferrer, 2007; Chattot, 2009; Elfarra, 2014; Farhan, 2019; Matheswaran, 2019). Exceptions to this general trend are the recent articles (Zahle, 2018; Sessarego, 2018; Hansen, 2018; Rosemeier, 2020; Horcas, 2020) that put the focus on general blade tip designs and aeroelastic performance. Moreover, there is no relevant research work focusing on performance and design loads of rotors with tip extensions relevant to real operational cases with a view towards a business case. Only in Rosemeier (2020) is the potential of blade tip extensions for lifetime extension evaluated through aeroelastic fatigue load cases.
Table 1Design variables and their range. Minimum (min) and maximum (max) values of planform design variables result in the "tip 1" and "tip 2" shapes shown in Fig. 1.
In this work, the tip extensions are designed with the objective of maximizing annual energy production (AEP) gain within the existing operational load constraints. The relevant business case is associated with improving the performance of existing rotors or customizing rotors for different site conditions while investing less in new full blade production costs. Due to the fact that full time-domain aeroelastic simulations are utilized for the power and load evaluation, a surrogate-based optimization (SBO) approach is pursued in order to avoid issues with gradient evaluations which normally require the simplification of the evaluation cases. Furthermore, the parametrization of the tip extension is detailed enough to represent a blade design optimization approach now in a modular way focusing only on the tip. This includes the capability of producing complex shapes with large sweep and prebend, which are typically not used in a traditional blade design.
2 Aeroelastic model setup
A time-domain aeroelastic model of the onshore version of the IEA 10 MW reference wind turbine (RWT) (Bortolotti, 2019) was first built. The IEA 10 MW RWT is an academic wind turbine model which is the result of aeroelastic optimization of the DTU 10 MW rotor. In particular the DTU 10 MW rotor was stretched in order to achieve the maximum AEP gain while satisfying the imposed design load constraints. The IEA 10 MW RWT design is considered a good representative reference of an optimized modern offshore wind turbine, for which the tip extensions could have a significant impact in the reduction of the LCOE.
A surrogate-based optimization framework was then wrapped around the baseline model of the IEA 10 MW RWT, with pre- and post-processing scripts providing the capability of executing simulations of specific tip extensions on the baseline turbine, with their design variables determined by the optimization routines.
The following sections provide further details of the different components involved in the above-described workflow.
2.1 Baseline model
The aeroelastic simulations performed in the present work relied on the commercial software HAWC2 (Larsen, 2007). HAWC2 includes advanced features in the near-wake (NW) aerodynamic module implementation, providing the ability to accurately simulate complex tip shapes (Pirrung, 2016, 2017; Li, 2018; Madsen, 2020). In addition to the modified near-wake model to account for blade sweep, the coupled aerodynamic module in HAWC2 uses a non-planar vortex cylinder model (Branlard, 2017) to compute the effects of prebend and out-of-plane deformation on axial- and radial-induced velocity.
The in-house multi-fidelity vortex solver MIRAS (Ramos, 2016, 2017) has been used for a higher-fidelity evaluation of the baseline and the optimized designs. In the present study the lifting line (LL) aerodynamic model is used in combination with a hybrid filament-particle-mesh flow model (Ramos, 2019). The flow is governed by the vorticity equation, which is obtained by taking the curl of the Navier–Stokes equation, and describes the evolution of the vorticity of a fluid particle as it moves with the flow. The coupling between MIRAS and HAWC2 (Ramos, 2020) permits us to account for the flexibility of the wind turbine, as well as the consideration of the effect of the controller and the hydrodynamic loads. MIRAS has been recently modified to accurately account for blade curvature effects (Li, 2020).
The power performance and ultimate loads of every design are evaluated in a single load case, comprising an IEC-specific DLC1.3 (IEC, 2005) simulation at 8 m s−1. This case is considered representative for determining the average power performance in below-rated power operation and the range of peak loading since the turbine operation ranges from low power production to full-rated power within the simulation time. The 600 s extreme turbulence model (ETM) simulation ensures that a range of inflow and operating conditions is accounted for. Moreover, different turbulence intensities (TIs) are simulated in the last part of the article, together with full wind speed range power curves for the AEP evaluation. A full design load basis (DLB) would be preferable, but the load simulation cases have been kept to a minimum for a fast and robust optimization setup.
Figure 1Planform for two reference tips at the borders of the design space. Vertical dashed lines indicate the location of the control points.
Figure 2Blade centerline for two reference tips at the borders of the design space. Vertical dashed lines indicate the location of the control points.
Figure 3Mass and flapwise stiffness for two reference tips at the borders of the design space. Vertical dashed lines indicate the location of the control points.
2.2 Tip extension parametrization
The definition of the tip extension design variables and their design space is probably the most important step in the described optimization process. The variables have been chosen in a way which enables a general blade stretching design capability. Their range is a result of many prior parametric studies, and it is limited to ensure the validity of the aerodynamic modeling (Zahle, 2018; Li, 2018). The 11 chosen variables and their extent in the design space are shown in Table 1, with all definitions being relative to the baseline blade. When adding the extensions, the blade is cut at the connection point at 97.5 % of its original projected length in the spanwise coordinate, and the length of the extension is added. The tip extension planform is defined by the chord values at the new tip (chord 1) and the baseline tip (chord 2) positions and by the twist values at the new tip (twist 1) and the baseline tip (twist 2) positions, all relative to the values at the 97.5 % connection point. The relative thickness is defined by assuming the value at the new tip position is equal to the one at the baseline tip. The distribution of the planform variables is calculated with a cubic Hermite interpolating polynomial in order to have a smooth continuous shape extension from the baseline geometry with limited design variables. The planforms of two reference tip extensions at the borders of the design space are compared to the baseline one in Fig. 1. The same distribution approach is utilized for the angle of the section reference line, where a new tip in-plane (sweep) and out-of-plane (dihedral) angles are defined relative to the existing direction at the connection point. Only the backwards sweep and upwind offsets are modeled since there is no evident design benefit for forward sweep, and upwind dihedral results in a smooth shape continuation of the existing prebend further away from the tower. The offsets of two reference tip extensions at the borders of the design space are compared to the baseline one in Fig. 2 for a case of 30∘ sweep and 30∘ dihedral angles. The structural properties of the tip sections are calculated by scaling with the new chord values. Two variables are defined in order to vary the structural characteristics of the tip, accounting for moving the shear center position fore of the baseline position relative to the local chord (SC off) and scaling of the flapwise, edgewise, and torsional stiffness (E/G scaling). The mass and flapwise stiffness of two reference tip extensions at the borders of the design space are compared to the baseline one in Fig. 3. The main controller parameters changing with the tip addition account for the response in the below-rated operation by scaling the rpm-generator torque quadratic gain (K opt) and varying the fine pitch setting (pitch opt).
2.3 Pre- and post-processing
For every design evaluation loop, the HAWC2 case files are pre-processed, executed, and post-processed on a single CPU. The top-level process is shown in Fig. 4. In the pre-processing of the MATLAB script, the baseline HAWC2 input files are modified in order to generate each tip extension design case. In the HAWC2 model, 10 additional structural and aerodynamic sections are added on the new part of the blade beyond 100 %, and the sections between 97.5 %–100 % are modified. The rpm-generator torque quadratic controller gain and the fine-pitch setting are also modified. A case folder with all the HAWC2 input is assembled from all necessary files.
In the post-processing of the MATLAB script, the output time-series files of HAWC2 are processed, and performance statistics are extracted. For the optimization, the mean generator power and the ultimate blade root flapwise bending moment are extracted. For detailed evaluation purposes of the designs, all other component load statistics and blade-distributed outputs are also extracted.
Figure 4SBO setup top-level diagram.
3 Surrogate-based optimization setup
The SBO framework is set up based on the MATLAB code package MATSuMoTo (Müller, 2013, 2014), which is the MATLAB Surrogate Model Toolbox for deterministic, computationally expensive black-box global optimization problems with continuous, integer, or mixed-integer variables that are formulated as minimization problems. The SBO framework determines the design variable sets and sends them to the pre-processor to execute the HAWC2 cases in parallel CPU processing. The general SBO algorithm works as follows.
Generate initial design sets.
Do the costly function evaluations at the points generated in the previous step.
Fit a surrogate model to the data.
Use the surrogate model to predict the objective function values at unsampled points in the variable domain to decide at which points to do the next expensive function evaluations.
Do the expensive function evaluations at the points selected in the previous step.
Check if the stopping criterion has been reached. If not, go back to the third step. If the stopping criterion has been met, stop.
The objective function is a very important part of this study since it determines which direction in the design space the SBO takes by evaluating new design variable sets. The objective function is defined as a weighted sum of the mean generator power and the ultimate blade root flapwise bending moment. Since we do not pursue any purely load-alleviation-driven designs but load-neutral power-increase designs, the objective function is based only on the maximization of power when the loads are neutral or negative compared to the baseline. When the increase in loads is higher than 2 % (an empirical limit accounting for model uncertainty), the objective has a 90 % weight on loads and 10 % on power. A smooth Gaussian filter is used for the transition between neutral and higher loads (Fig. 5).
Figure 5Power and load objective function weights as a function of load increase.
3.1 Surrogate modeling
For generating the initial sample set, MATLAB's Latin hypercube design is used with the maximin option and 20 iterations. The minimum sample size used is 3⋅d+1, where d is the number of design variables, in our case 11. In the initial set, a reduced cubic polynomial regression model is fitted. The choice of the surrogate model is decided based on prior studies of accuracy and comparing it with quadratic regression polynomials and radial basis functions. The chosen design of experiment (DOE) and surrogate model methods are based on the prior studies of Müller (2013, 2014), with the number of initial sample points in accordance to the model requirements and the chosen methods, given the fact that the focus of this work is not on the evaluation of the best optimization methods but on the evaluation of the potential design benefit of the chosen methods.
3.2 Optimization
Using the fitted surrogate model on the initial set, a global optimization approach is followed utilizing MATLAB's genetic algorithm with default settings. The best-performing design point is chosen for a HAWC2 evaluation, together with points created by randomly perturbing the best point found so far. In addition, a set of points that is uniformly selected from the whole variable domain is generated (using again a Latin hypercube design) and is added to the evaluation set. Hence, it is possible to improve the global fit of the surrogate model, and new areas of the variable domain where the global optimum may be located can be detected. Using 7 CPUs, 20 iterations are performed, resulting in a total of 174 HAWC2 evaluations, including the initial sample set of 34 points.
4 Results
The progress of the optimization and the results for the whole set of evaluated design samples is discussed here. The characteristics of the best converged design are also discussed in detail.
Table 2Optimized design variables.
4.1 Optimization results
The progress plot showing the best value of the objective function during the evaluation of each sample is shown in Fig. 6. It is seen that the objective function value is improved considerably from the starting samples and practically converges after 140 evaluations. All evaluated samples are plotted in Fig. 7 in the state space of the two metrics, generator power and ultimate blade root flapwise bending moment, and are colored by the value of the objective function (weighted sum). A Pareto front is clearly visible with the best points laying on the front close to the zero load difference level. The optimal design point is designated by the red circle.
Figure 6Progress plot of the objective function value.
Figure 7Pareto front of the evaluated samples.
Figure 8Blade 3D surface comparison between baseline geometry (in black) and optimized tip extension (in red). (a) In-plane view and (b) out-of-plane view. For reference, a background grid with a spacing of 3.5 m is included.
Figure 9Blade centerline of the optimized design.
Figure 10Planform of the optimized design.
Figure 11Mass and flapwise stiffness of the optimized design (zoom-in of the tip).
The best design in terms of the minimum value of the objective function comprises a tip extension with a length close to the limit of the defined length (7 %), with all 11 design variables listed in Table 2. The design is shown to be a slender, backwards swept, and highly upwind prebent tip shape with fore positioning of the shear center, lower rotor speed, and higher pitch settings. In Fig. 8, the 3D geometry of the baseline and optimized blade tip is compared.
Table 3Comparison of AEP predictions for the baseline and optimized designs between HAWC2-NW and HAWC2-MIRAS.
a Relative to baseline – NW; b relative to baseline – MIRAS.
Figure 12Power curve comparison between HAWC2-NW and HAWC2-MIRAS: (a) class I and (b) class III. Solid lines represent the baseline blade, while dashed lines represent the optimized tip design.
Figure 13(a) Rotational speed and (b) pitch signal of the baseline and optimized design. Solid lines represent the baseline blade, while dashed lines represent the optimized tip design.
The blade centerline of the optimized design is compared to the baseline in Fig. 9, where the sweep and prebend offsets are shown. The optimized planform is compared to the baseline in Fig. 10. The mass and flapwise stiffness distributions are compared to the baseline in Fig. 11. The optimized distributions are generally smooth and realizable with the exception of the twist, which in a realistic application would have to be a smooth continuation of the maximum value of the baseline inboard of the tip.
Figure 14Differences in power in the function of turbulence intensity (a) mean and (b) standard deviation. Solid lines represent the baseline blade, while dashed lines represent the optimized tip design.
4.2 Evaluation of optimized design
The performance of the optimized design is evaluated in terms of AEP in its IEC wind class I and the lowest average wind speed class III. The "clean" power curve is defined by steady uniform wind speed inflow from cut-in to cut-out with 1 m s−1 steps and no wind shear or turbulence. The higher-fidelity aerodynamic module MIRAS is also used to run the same cases for comparison. The results are shown in Table 3, with the power curves plotted in Fig. 12. We see that MIRAS overpredicts the AEP of the baseline design by 1 % and underpredicts the AEP gain due to the tip by up to 2 %.
Table 4Statistics of the power and flapwise root bending moment predicted in the extreme turbulence case by HAWC2-NW and HAWC2-BEM with respect to HAWC2-LL predictions. The table shows the difference in percentages.
The performance of the optimized design is also evaluated in the DLC1.3 (ETM) case which is used in the optimization and is performed with the NW method against two different fidelity models. The blade element momentum (BEM) model implemented in HAWC2 is used as the lower-fidelity method, and the lifting line aerodynamic module implemented in MIRAS is employed as the higher-fidelity solver. To ensure a meaningful comparison between the solvers, simulations of the extreme turbulent case have been carried out as follows. Firstly, to run a free turbulent simulation in MIRAS, the velocity-defined Mann turbulent box used in the optimization procedure has been transformed into a particle cloud by computing the curl of the velocity field. This cloud is slowly released one diameter upstream of the turbine, and it develops as it convects downstream towards the rotor plane. The released turbulent particles interact freely with the turbine wake. Vortex simulations with and without the turbine are performed. In the simulation without a turbine, the local velocities are extracted every time step at the rotor plane position in a 64×64 mesh with a cell size of approximately 6.25 m. These velocities differ from the initially defined turbulent box due to the downstream development of the flow in MIRAS. Such velocities are used to generate a new turbulent field which will be loaded in the HAWC2-NW and HAWC2-BEM simulations. Such a turbulent field will mimic the turbulence seen by the turbine in MIRAS, although the presence of the turbine and its wake will modify the turbulent field, and such phenomena can not be accounted for. In order to reduce uncertainties related to the turbine control in HAWC2, both the azimuthal rotor position and the pitch angle for each one of the blades are forced to be the same as the ones computed in the MIRAS simulation (with turbine), as shown in Fig. 13. In order to have a smooth start of the HAWC2-BEM and HAWC2-NW simulations, the first 60 s of the rotational speed signal from MIRAS has been modified using a hyperbolic tangent function. Differences between the simulations are therefore mainly related to the wake and flow modeling. The visible rotor speed differences (left plot of Fig. 13) appear between the baseline rotor and the rotor with optimized tip, and the different fidelity levels clearly operate at the same rotor speeds from 100 s simulated time. The pitch angles also agree well between fidelity levels. The main offset between the baseline and extended rotors is the minimum pitch angle that is reduced to 1∘ (towards feather) by the optimization routine (see Table 2).
Figure 15Differences in flapwise root bending moment in the function of turbulence intensity (a) mean, (b) minimum, and (c) standard deviation. Solid lines represent the baseline blade, while dashed lines represent the optimized tip design.
Figure 16Aerodynamic power signal (a, c) baseline and (b, d) optimized design. (a, b) Full simulation time and (c, d) zoom-in for a 50 s time interval.
General statistics of the aerodynamic power and the flapwise root bending moment are presented in Table 4. Regarding the power, it seems like the BEM method is slightly closer to the LL predictions in both mean and standard deviations for both rotor designs. However, regarding the blade root flapwise moment (MxBR), the NW model is closer to the LL calculations for all quantities except for the minimum predicted value of the optimized blade. This is especially remarkable when looking at the standard deviation, in which the NW deviation from the LL simulations is 50 % smaller than BEM. Note here that the defined DLC 1.3 case has a turbulent intensity level of 40 %.
In order to study the influence of the turbulence level in the results, the extreme turbulence level of the DLC 1.3 (40 %) has been downscaled to obtain inflow fields with a range of turbulence intensities from 0 % to 40 %. Statistics of the difference in the BEM and NW predictions with respect to the LL simulations in the function of the turbulence level are presented in what follows. Figure 14 depicts the mean and standard deviation of the power signal. In terms of the mean, there is a clear increase in the differences respect to the LL simulations with the increasing turbulent intensity. The standard deviation of the power signal follows a different pattern with the smallest differences between the codes obtained for a TI of 20 %. An analysis of the mean, minimum, and standard deviation of the flapwise root bending moment signal is presented in Fig. 15. In this case, differences in the standard deviation of the signal are small for the optimized tip at low TIs and larger for the baseline; as the TI increases, the differences increase and align for both rotors. A similar picture is observed in the behavior of the minimum root bending moment values, although generally differences between the rotors increase with the TI. In terms of the mean values, differences with respect to the LL predictions grow with increasing TI, with the engineering models predicting a higher moment at low TI and a lower one at high TI.
A detailed analysis is carried out for the 40 % turbulent case. Figure 16 shows the time signal of the aerodynamic power for both blade designs with the three different fidelity models. Generally there is a good agreement between the three solutions. However, there is a small power offset in which the LL predictions are most of the time slightly larger than the BEM and NW predictions.
The time variation in the predicted flapwise root bending moment is shown in Fig. 17. Opposite to what is observed for the power signal, there is no clear offset between the LL and the NW/BEM model predictions. It is visible that the BEM calculations experience larger high-frequency variations compared to the higher-fidelity models, exhibiting a larger standard deviation as has previously been shown.
Figure 17Flapwise root bending moment for MxBR (a, c) baseline and (b, d) optimized design. (a, b) Full simulation time and (c, d) zoom-in for a 50 s time interval.
The radial distributions of mean and standard deviation of area of attack (AOA) for the baseline blade (solid lines) and extended blade (dashed lines) are shown in Fig. 18. It can be seen that the mean AOA on the tip increases by roughly 4∘ at the start of the tip extension, which is mainly due to the twist distribution (see Fig. 10). The MIRAS and the NW results both show decreased mean AOA inboard of the tip and an increased AOA on the tip itself. This is likely due to a load redistribution due to two factors: the offset of the trailed vorticity at the very blade tip and the velocity induced by the curved bound vorticity on the tip extension (Li, 2018). In the standard deviation of the AOA (right plot of Fig. 18), it can be seen that all codes predict the standard deviation to increase on the tip extension compared to the outboard part of the baseline blade. This is partly because the sweep angle reduces the fraction of the relative velocity that is in the planes of the aerodynamic sections, while it does not affect the wind speed changes due to turbulence. Thus the same turbulence will lead to larger variations in AOA on the swept-extended tip part of the blade than on the straight outboard part of the original blade. It can also be seen in all fidelity levels that the AOA is varying less on the section between 80 and 95 m radius on the extended blade than on the original blade, which is due to the aeroelastic load alleviation effect that the swept tip provides. The higher mean and standard deviation of the AOA inboard of 80 m radius on the extended blade is due to the reduced minimum pitch angle and due to the slightly reduced rotor speed (see Fig. 13).
Figure 18Angle of attack (a) mean distribution and (b) standard deviation. Solid lines represent the baseline blade, while dashed lines represent the optimized tip design.
The mean and standard deviation of the in-plane force are shown in Fig. 19. The overprediction of the mean in-plane force in the LL simulations corresponds to the mean power overprediction shown in Table 4. Again the load redistribution on the swept tip can be seen clearly, with increasing loads on the tip itself and decreasing loads inboard of the tip predicted by the LL and NW models compared to the BEM code prediction. All codes predict very similar standard deviations of the in-plane force.
Figure 19In-plane force (a) mean distribution and (b) standard deviation. Solid lines represent the baseline blade, while dashed lines represent the optimized tip design.
Similar effects can be seen in the out-of-plane forces in Fig. 20. The standard deviation of the NW computations is consistently below the BEM predictions, which is in good agreement with the comparisons in (Madsen, 2018). The aeroelastic load alleviation due to the geometric bend–twist coupling caused by the swept tip is clearly visible inboard of the tip section down to a radius of 50 m. In that part of the blade, all three codes predict lower load variations for the extended blade than the baseline blade. The fact that the BEM computations agree very well with the higher-fidelity codes on this load reduction indicates that it is an aeroelastic effect.
Figure 20Out-of-plane force (a) mean distribution and (b) standard deviation. Solid lines represent the baseline blade, while dashed lines represent the optimized tip design.
Figure 21Mean values of the aerodynamic efficiency, Fx/Fy. Solid lines represent the baseline blade, while dashed lines represent the optimized tip design.
5 Conclusions
A novel surrogate-based optimization framework for aeroelastic design of tip extensions on modern wind turbines is presented in this work. The design of tip extensions is performed in a realistic design space and aeroelastic operation of the wind turbine, and it is highly efficient in terms of the use of computational resources. The optimized design achieving load-neutral 6 % AEP gain is evaluated in detail with two levels of aerodynamic model fidelity. The aeroelastic response predictions of the complex tip shape with the near-wake aerodynamic module agree fairly well with the higher-fidelity MIRAS simulations. A detailed comparison including a BEM model shows that local load distributions are predicted better by the near-wake model, but the improvement in terms of mean power and blade root loading over the BEM model is not clear. This indicates that the coupling factor computation in the near-wake model should be revisited. The agreement between the lower-fidelity BEM model, the near-wake model, and the higher-fidelity MIRAS model worsens with increasing turbulence intensity, which should be investigated in more detail in future work. The tip extension design concept resulting from the SBO process has high potential in terms of actual implementation in a real rotor upscaling with a potential business case in reducing the LCOE of future large wind turbine rotors. Future work will focus on introducing multi-fidelity optimization methods but also concept innovations which could further increase the achieved performance potential.
Code and data availability
The SBO-framework basic Matlab code is freely available at https://github.com/Piiloblondie/MATSuMoTo (Müller, 2014). Pre- and post-processing scripts and data sets available upon request. The aeroelastic code HAWC2 is available with a license.
TB performed the aeroelastic model setup, optimization framework setup, design parametrization, design optimization, and design evaluation. NRG performed the MIRAS simulations and contributed to the design evaluation. GRP contributed to the aeroelastic model setup, design parametrization, and design evaluation. SGH contributed to the design parametrization and design evaluation.
This research was supported by the project Smart Tip (Innovation Fund Denmark 7046-00023B), in which DTU Wind Energy and Siemens Gamesa Renewable Energy explore optimized tip designs. The following persons have also contributed to the presented work: Helge Aagard Madsen, Flemming Rasmussen, Niels Nørmark Sørensen, Peder Bay Enevoldsen, and Jesper Monrad Laursen.
This research has been supported by the Innovation Fund Denmark (grant no. 7046-00023).
This paper was edited by Mingming Zhang and reviewed by Niels Adema and Rad Haghi.
Bortolotti, P., Zahle, F., and Verelst, D.: IEA-10.0-198-RWT, https://www.github.com/ieawindtask37/iea-10.0-198-rwt (last access: 10 April 2019), 2019. a
Branlard, E. S. P.: Wind Turbine Aerodynamics and Vorticity-Based Methods, Springer, https://doi.org/10.1007/978-3-319-55164-7, 2017. a
Chattot, J. J.: Effects of blade tip modifications on wind turbine performance using vortex model, Comput. Fluids, 38, 1405–1410, 2009. a
Elfarra, M. A., Sezer-Uzol, N., and Akmandor, I. S.: NREL VI rotor blade: Numerical investigation and winglet design and optimization using CFD, Wing Energy, 17, 605–626, 2014. a
Farhan, A., Hassanpour, A., Burns, A., and Motlagh, Y. G.: Numerical study of effect of winglet planform and airfoil on a horizontal axis wind turbine performance, Renew. Energ., 131, 1255–1273, 2019. a
Ferrer, E. and Munduate, X.: Wind turbine blade tip comparison using CFD, J. Phys. Conf. Ser., 75, 012005, https://doi.org/10.1088/1742-6596/75/1/012005, 2007. a
Gaunaa, M. and Johansen, J.: Determination of the maximum aerodynamic efficiency of wind turbine rotors with winglets, J. Phys. Conf. Ser., 75, 012006, https://doi.org/10.1088/1742-6596/75/1/012006, 2007. a
Hansen, T. H. and Mühle, F.: Winglet optimization for a model-scale wind turbine, Wind Energy, 21, 634–649, 2018. a
Horcas, S. G., Barlas, T., Zahle, F., and Sørensen, N. N.: Vortex induced vibrations of wind turbine blades: Influence of the tip geometry, Phys. Fluids, 32, 065104, https://doi.org/10.1063/5.0004005, 2020. a
International Electrical Commission (IEC): International Standard IEC 61400-1: Wind Turbines – Part 1: Design requirements, 2005. a
Johansen, J. and Sørensen, N. N.: Aerodynamic investigation of winglets on wind turbine blades using CFD, Technical report, Risoe-R 1543(EN), Forskningscenter Risoe, Denmark, 2006. a
Larsen, T. J. and Hansen, A. M.: How2HAWC2,Technical report, DTU R-1597(EN), Forskningscenter Risoe, Denmark, 2007. a
Li, A., Pirrung, G., Madsen, H. A., Gaunaa, M., and Zahle, F.: Fast trailed and bound vorticity modeling of swept wind turbine blades, J. Phys. Conf. Ser., 1037, 062012, https://doi.org/10.1088/1742-6596/1037/6/062012, 2018. a, b, c
Li, A., Gaunaa, M., Pirrung, G., Ramos-García, N., and González Horcas, S.: The influence of the bound vortex on the aerodynamics of curved wind turbine blades, J. Phys. Conf. Ser., 1618, 052038, https://doi.org/10.1088/1742-6596/1618/5/052038, 2020. a
Madsen, H. A., Sørensen, N. N., Bak, C., Troldborg, N., and Pirrung, G.: Measured aerodynamic forces on a full scale 2 MW turbine in comparison with EllipSys3D and HAWC2 simulations, J. Phys. Conf. Ser., 1037, 022011, https://doi.org/10.1088/1742-6596/1037/2/022011, 2018. a
Madsen, H. A., Larsen, T. J., Pirrung, G. R., Li, A., and Zahle, F.: Implementation of the blade element momentum model on a polar grid and its aeroelastic load impact, Wind Energ. Sci., 5, 1–27, https://doi.org/10.5194/wes-5-1-2020, 2020. a
Matheswaran, V., Miller, L. S., and Moriarty, P. J.: Retrofit winglets for wind turbines, AIAA Scitech 2019 Forum, 7–11 January 2019, San Diego, California, https://doi.org/10.2514/6.2019-1297, 2019. a
Müller, J.: MATSuMoTo: The MATLAB Surrogate Model Toolbox For Computationally Expensive Black-Box Global Optimization Problems, arXiv, arXiv.1404.4261, 2014 (data available at: https://github.com/Piiloblondie/MATSuMoTo, last access: 10 April 2019). a, b, c
Müller, J., Shoemaker, C. A., and Piché, R.: SO-MI: A surrogate model algorithm for computationally expensive nonlinear mixed-integer black-box global optimization problems, Comput. Oper. Res., 40, 1383–1400, 2013. a, b
Pirrung, G. R., Madsen, H. A., Kim, T., and Heinz, J. C.: A coupled near and far wake model for wind turbine aerodynamics, Wind Energy, 19, 2053–2069, 2016. a
Pirrung, G., Riziotis, V., Madsen, H., Hansen, M., and Kim, T.: Comparison of a coupled near- and far-wake model with a free-wake vortex code, Wind Energ. Sci., 2, 15–33, https://doi.org/10.5194/wes-2-15-2017, 2017. a
Ramos-García, N., Sørensen, J. N., and Shen, W. Z.: Three-dimensional viscous-inviscid coupling method for wind turbine computations, Wind Energy, 19, 67–93, 2016. a
Ramos-García, N., Spietz, H. J., Sørensen, J. N., and Walther, J. H.: Hybrid vortex simulations of wind turbines using a three-dimensional viscous-inviscid panel method, Wind Energy, 20, 1871–1889, 2017. a
Ramos-García, N., Spietz, Henrik J., Sørensen, J. N., and Walther, J. H.: Vortex simulations of wind turbines operating in atmospheric conditions using a prescribed velocity-vorticity boundary layer model, Wind Energy, 21, 1216–1231, 2019. a
Ramos-García, N., Sessarego, M., and González Horcas, S.: Aero-hydro-servo-elastic coupling of a multi-body finite-element solver and a multi-fidelity vortex method, Wind Energ., https://doi.org/10.1002/we.2584, 2020. a
Rosemeier, M. and Saathoff, M.: Assessment of a rotor blade extension retrofit as a supplement to the lifetime extension of wind turbines, Wind Energ. Sci., 5, 897–909, https://doi.org/10.5194/wes-5-897-2020, 2020. a, b
Sessarego, M., Ramos García, N., and Shen, W. Z.: Analysis of winglets and sweep on wind turbine blades using a lifting line vortex particle method in complex inflow conditions, J. Phys. Conf. Ser., 1037, 022021, https://doi.org/10.1088/1742-6596/1037/2/022021, 2018. a
Veers, P., Dykes, K., Lantz, E., Barth, S., Bottasso, C. L., Carlson, O., Clifton, A., Green, J., Green, P., Holttinen, H., Laird, D., Lehtomäki, V., Lundquist, J. K., Manwell, J., Marquis, M., Meneveau, C., Moriarty, P., Munduate, X., Muskulus, M., Naughton, J., Pao, L., Paquette, J., Peinke, J., Robertson, A., Sanz Rodrigo, J., Sempreviva, A. M., Smith, J. C., Tuohy, A., and Wiser, R.: Grand challenges in the science of wind energy, Science, 366, 443, https://doi.org/10.1088/1742-6596/1037/2/022021, 2019. a
Zahle, F., Sørensen, N. N., McWilliam, M. K., and Barlas, T.: Computational fluid dynamics-based surrogate optimization of a wind turbine blade tip extension for maximising energy production, J. Phys. Conf. Ser., 1037, 042013, https://doi.org/10.1088/1742-6596/1037/4/042013, 2018. a, b
Aeroelastic model setup
Surrogate-based optimization setup
A method to design advanced tip extensions for modern wind turbine blades is presented in this work. The resulting design concept has high potential in terms of actual implementation in a real rotor upscaling with a potential business case in reducing the cost of energy produced by future large wind turbine rotors.
A method to design advanced tip extensions for modern wind turbine blades is presented in this...


text:
One Nation: Chinese-Australian candidate says Hanson 'has nothing against Asians'
By Eliza Borrello
Posted Fri 20 Jan 2017 at 2:48pm Friday 20 Jan 2017 at 2:48pm Fri 20 Jan 2017 at 2:48pm , updated Fri 20 Jan 2017 at 2:51pm Friday 20 Jan 2017 at 2:51pm Fri 20 Jan 2017 at 2:51pm
One Nation candidate Tshung Chang is running for the seat of Riverton. (ABC News: Eliza Borrello)
abc.net.au/news/one-nation-candidate-says-hanson-has-nothing-against-asians/8199466
A Chinese-Australian man running for Pauline Hanson's One Nation in the West Australian election has declared the party's leader is not "anti-Asian".
Senator Hanson has endorsed Tshung Chang to contest the WA Treasurer Mike Nahan's seat of Riverton.
He said he planned to campaign for a better share of the Goods and Services Tax for WA and apply scrutiny to politician's travel expenses.
Asked whether he remembered Senator Hanson's first speech to parliament in 1996 where she said Australia was "in danger of being swamped by Asians," Mr Chang said he did.
"Yes I do, I think that was the infamous speech, however that was I think 20, as you rightly said, 25 years ago and I think she's actually become more and more experienced since then and the views back then are not reflective of what they are today because of her life experiences."
"Pauline has got nothing against Asians, nothing against Asians that work hard, that come here and are good citizens.
"Nothing could be further from the truth to say that she's anti-Asian or anti any particular race."
What has not changed in two decades is Pauline Hanson's star power.
As Senator Hanson walked through the streets of Bunbury, south west of Perth yesterday, voters clamoured for photos with her.
One Nation leader Pauline Hanson draws crowds across Western Australia. (ABC News: Andrew O'Connor)
Izzy Taylor was one of them.
"Mum was like, 'get a photo with her'," she said.
Ms Taylor didn't nominate any One Nation policies she liked, instead saying she would vote for the party because of Senator Hanson's celebrity status.
"And obviously because mum and dad wanted her to win."
The WA election will be held on March the 11th.
It is expected to be a close contest and both sides of politics view One Nation as a wildcard with the power to influence the outcome.
Posted 20 Jan 2017 20 Jan 2017 Fri 20 Jan 2017 at 2:48pm , updated 20 Jan 2017 20 Jan 2017 Fri 20 Jan 2017 at 2:51pm
Hanson stands by WA election candidates on visit to South West
One Nation a 'threat' to major parties at WA poll, Hanson says
Pauline Hanson
State and Territory Parliament