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Home » Submarine cable
Substantial EU funding for Harmony Link
The Connecting Europe Facility (CEF) is an important financial instrument of the EU to support targeted infrastructure investments at European level. On 1 October 2020, the coordination committee of the CEF decided to allocate €719.7m for investment in electricity transmission infrastructure in Poland, Lithuania, Latvia, and Estonia. The granting follows an application for funding submitted at the end of May this year by the national transmission system operators (TSOs) of the three Baltic States and by PSE, the Polish TSCNET shareholder.
Harmony Link, which is to be the second interconnector between Poland and Lithuania, particularly benefits: €493m will be directly allocated to the project. Further funding is intended for the upgrading of infrastructure required for the integration of Harmony Link and for the installation of synchronous compensators in the Baltic States.
The first Polish-Lithuanian interconnector is LitPol link, an overhead line connecting the PSE substation in Elk and the Lithuanian Alytus substation, which has been in operation since 2016. Harmony Link is implemented in a different technical way, as a high voltage direct current (HVDC) submarine cable bypassing the Curonian Lagoon and the Gdańsk Bay. The new Polish-Lithuanian interconnector is crucial to enable the synchronisation of the Baltic electricity area with the Continental European (CE) area – an important objective in the framework of the European Energy Union to create a common European electricity market. It will also support regional and supra-regional supply security.
The EU is funding the Polish and Baltic electricity infrastructure with €719.7m through the CEF Energy programme (picture of Gdańsk Bay seen from Gdynia: NAC on Wikimedia Commons, CC BY-SA 4.0)
> See PSE press release (html)
General Baltic Countries, Europe, Grid Extension, Harmony Link, Interconnector, Lithuania, Market integration, Poland, PSE, Submarine cable, Supply security
Deep Dig-It starts work for Hollandse Kust (zuid) grid
Hollandse Kust (zuid), an offshore wind area in the Dutch North Sea, is located a good 20 kilometres off the coast of the Dutch province of Zuid-Holland. The Dutch-German transmission system operator (TSO) TenneT is installing the related offshore grid to connect the new offshore wind farms in the area via two offshore platforms and submarine cables to the onshore high-voltage substation that is being built in the Maasvlakte industrial and port area. The jacket for the first of these two offshore platforms has recently been installed and the offshore connection project is now making further progress with the start of the laying of the submarine cables on 22 September.
Four 220kV AC cables with a total length of 42 kilometres each are to be installed in the seabed, of which the first two to the Alpha platform will be laid this year. The other two to the Beta platform will follow in 2021. First, the two cables were brought ashore to the planned Maasvlakte substation via direct drilling. Thereupon the TSCNET shareholder started the marine installation, with the first ten kilometres of the route from the coast at Maasvlakte being extremely challenging. Over this distance, the cables cross the entrance to the port of Rotterdam – Europe's busiest cargo port – and thus need to be buried more than 5.5 metres deep. For this purpose, the contracted specialist company Van Oord uses its Deep Dig-It trencher, an enormous remote-controlled trencher.
The Deep Dig-It is one of the largest and most powerful devices in its class. The trencher weighs 125 tonnes, is more than 17 metres long, well over 8 metres high, and 11 metres wide. With its enormous power it can bury cables deeply even in very hard ground. The trencher is controlled from an offshore installation vessel equipped with a crane to lower and lift out the high-performance machine. The Deep Dig-It moves unmanned over the seabed and creates a deep trench for the cables by liquefying the seabed. Simultaneously, the Deep Dig-It inserts the cables into the trench and seals the seabed afterwards. With work progressing well, Tennet expects the 1,400MW Hollandse Kust (zuid) grid connection to be completed in 2022.
TenneT has started the laying of submarine cables for the Hollandse Kust (zuid) grid connection (picture: Van Oord)
> Watch TenneT video of the Deep Dig-It at work (YouTube)
General Energy Transition, Grid Extension, Hollandse Kust (zuid), Hollandse Kust (zuid) Alpha, Netherlands, Offshore, Renewables, Submarine cable, TenneT, Wind Energy
Jacket for Hollandse Kust (zuid) Alpha platform installed
The offshore wind area Hollandse Kust (zuid) is located 22 kilometres off the coast of the Dutch province of Zuid-Holland. The Dutch-German transmission system operator (TSO) TenneT will connect the wind farms in this area to the onshore substation in the industrial and port area of Maasvlakte via two offshore platforms – Alpha and Beta – and submarine cables. The jacket for the Hollandse Kust (zuid) Alpha platform was transported to the operation site by a heavy-duty vessel on 5 September and successfully installed on the seabed. The Alpha jacket is 29 meters long, 20 meters wide, 46 meters high and weighs 3200 tonnes. It will be further installed in the coming days.
The two 220kv submarine cables will be connected to the jacket over the next few months. In 2021, the platform top side will be placed on the jacket. The Hollandse Kust (zuid) Alpha platform is expected to be operational by the end of 2021. The projects in this new wind area are part of the large-scale offshore expansion programme of TenneT. By the end of 2023, the TSCNET shareholder will have installed 3.5GW of offshore grid connections in the Netherlands, of which the first 1.4GW have already been achieved with Borssele Alpha and Beta. The connection to follow Hollandse Kust (south) will be Hollandse Kust (nord). For all the wind farms in these two areas, TenneT will deploy five identical 700MW transformer platforms and identical 220kV cable connections. "Such standardisation enables TenneT to complete these projects more efficiently, more quickly, and more economically," explains TenneT COO Tim Meyerjürgens.
The Dutch national roadmap for offshore development provides for an additional 6.1GW of offshore wind farms in the wind energy areas Hollandse Kust (West), Ten Noorden van de Waddeneilanden, and IJmuiden Ver from 2024 to the end of 2030. For the first two areas, TenneT will again use standardised 700MW offshore platforms. The efficient connection of IJmuiden Ver, which is located further out in the North Sea, partly requires other technologies based on DC instead of AC. IJmuiden Ver will have two offshore transformer platforms with a capacity of 2GW each, which is unique in the offshore wind industry.
TenneT has installed the jacket for the Hollandse Kust (zuid) Alpha platform (picture: TenneT)
General Borssele Alpha, Borssele Beta, Energy Transition, Grid Extension, Hollandse Kust, Hollandse Kust (zuid) Alpha, Netherlands, Offshore, Renewables, Submarine cable, TenneT, Wind Energy
TenneT commisions "green" substation
In recent years, the seaport of Eemshaven in the province of Groningen in the north of the Netherlands has become more and more important for the Dutch energy transition. Eemshaven has taken on the role of an energy port: with power plants, sustainable generation, connections to offshore wind farms, and submarine cable interconnectors to Norway and Denmark. The Dutch-German transmission system operator (TSO) TenneT – together with regional distribution system operator (DSO) Enexis Netbeheer – now has commissioned the new high-voltage substation Eemshaven as the first substation entirely built for the suply of wind and solar energy.
The station was built as part of the grid reinforcement for the growing amount of sustainably generated energy in the north of the Netherlands which requires an increase in transmission capacity. Other measures of the TSCNET shareholder include a 380kV connection between the Eemshaven (Oudeschip) high-voltage substation and Vierverlaten near Groningen as well as the extension of the Vierverlaten substation. This new 380kV "power highway" will replace the existing 220kV line. Until it is put into operation – scheduled for 2023 – TenneT will commission a provisional 380kV substation in Eemshaven (Oostpolder) in October 2020.
TenneT has put into operation the new substation Eemshaven for the supply of green electricity (picture: TenneT)
> See TenneT press release, in Dutch (html)
General DSO, Energy Transition, Grid Extension, Netherlands, Offshore, Renewables, Solar Energy, Submarine cable, Substation, TenneT, Wind Energy
TenneT records 21% increase in offshore transmission
In the first half of 2020, the wind energy transmitted from the North Sea ashore by the Dutch-German transmission system operator (TSO) TenneT rose to 11.51TWh. This represents an increase of 21.1% compared with the 9.51TWh in the first half of 2019, bringing the North Sea's share of total wind power generation in Germany to 15.6%. The maximum feed-in volume from offshore wind farms in the German North Sea was 6,035MW on 2 January 2020. By 30 June, the generation capacity of the German North Sea wind farms reached 6,679MW, a volume which is exceeded by TenneT's offshore transmission capacity of 7,132MW. This amount, which is higher than the German government's 2020 target (6.5GW for the North and Baltic Seas combined), is currently being achieved with twelve German offshore grid connections.
Tim Meyerjürgens, COO of the TSCNET shareholder, comments on the impressive figures: "The expansion and integration of offshore wind energy is of central importance for the European energy transition." And offshore development is also keeping pace in the Dutch market: "With Borssele alpha and – from mid-August – Borssele beta, we have now also successfully completed the first two offshore connections in the Dutch North Sea." TenneT promotes capacity expansion with technical innovations and, according to Meyerjürgens, wants to remain a driving force in the offshore sector: "Ever since TenneT set the standard for plastic-insulated DC cables at 320kV in the offshore sector around ten years ago, we have been defining a new global benchmark for the future with our 525kV DC subsea cable system and its transmission capacity of two GW."
The 525kV development programme should lead to a standardised cable system that the TSO can employ by 2030 for the three German North Sea projects BalWin1, BalWin2, BalWin3 and the two Dutch projects IJmuiden Ver alpha and beta as well as in potential further projects of equal power and voltage. TenneT is expecting lower costs, greater security of supply and less impact on the environment. These efforts require considerable investment: "We have an investment programme of around €20bn earmarked for connecting offshore wind energy in the Netherlands and Germany by 2030," explains Meyerjürgens. Important in this context are also hydrogen and hybrid initiatives. The North Sea Wind Power Hubs proposed by TenneT explicitly include power to gas concepts. Furthermore, in June, TenneT proposed to the EU and the Dutch and German governments an integrated energy system approach for the international offshore development.
TenneT increased its transmission of offshore wind energy by 21% in the first half of 2020 (picture: TenneT)
General Borssele Alpha, Borssele Beta, Energy Transition, Germany, Grid Extension, Netherlands, North Sea, North Sea Wind Power Hub, Offshore, Power to Gas, Renewables, Research, Submarine cable, TenneT, Wind Energy
Foundation laid for DolWin6 converter
With a dozen operating offshore connection systems for wind farms in the German North Sea totalling a transmission capacity of 7.132GW, the Dutch-German transmission system operator (TSO) TenneT has already in 2019 exceeded the German government's expansion target for offshore wind energy capacity for 2020 by more than half a million GW. A further 900MW will be provided by DolWin6, like the predecessor projects DolWin3 and BorWin3 a high-voltage direct current (HVDC) connection. The DolWin kappa offshore platform in the Wadden Sea near the island of Norderney will convert the three-phase wind current into DC for transmission via a 45 kilometre submarine cable to the East Frisian mainland and from the landing point via an underground cable, also around 45 kilometres long, to the TenneT site in Emden/East.
Here, the TSCNET shareholder is constructing the DolWin6 onshore converter station and a substation on 23,500m² to reconvert the DC into three-phase current for feeding into the onshore extra-high voltage grid. A significant milestone for DolWin6 was reached on 27 May: The laying of the foundation at the converter construction site was celebrated in Emden/East by embedding a time capsule with coins, a regional daily newspaper, and construction plans into the foundation stone. Due to the Covid-19 pandemic, the event was only celebrated with the most important project managers from TenneT and the plant constructor Siemens.
Concrete preparations for DolWin6 began in the summer of 2017 and 2018 with horizontal drilling on Norderney. In September 2019, the foundation work commenced in Emden/East. Work on the DolWin kappa offshore platform at a dockyard in Cádiz/Andalusia also started in mid-2019 and the DolWin6 cable laying will follow from summer this year. The completion of the HVDC offshore connection is scheduled for 2023.
TenneT celebrated the laying of the foundation stone for the DolWin6 converter in Emden/East (picture: TenneT)
General BorWin3, Dolwin3, DolWin6, Energy Transition, Europe, Germany, Grid Extension, Offshore, Submarine cable, TenneT, Underground Cabling, Wind Energy
TenneT develops 525kV HVDC offshore cable system
In just 10 years, 40% of the Dutch electricity demand will be covered by offshore wind power. Furthermore, the Dutch-German transmission system operator (TSO) TenneT will increase the German offshore grid connection capacity to 17GW by 2030. To meet these high ambitions, the TSCNET shareholder expands its current connection plans and additionally intends to implement a total of five 2GW offshore connections in the Dutch IJmuiden Ver wind energy area and in the German LanWin and BalWin areas. However, since such 2GW offshore grid connections do not yet exist, innovative project development is necessary.
The integration of 2GW offshore grid connections into the onshore grid requires a suitable certified cable system that operates at a voltage level of 525kV DC using extruded insulation types. TenneT has contracted a total of eight cable suppliers to develop these "next-level" submarine cables for the intended high-performance offshore connections. An extruded 525kV high voltage direct current (HVDC) cable system with a 2GW output is currently not implemented in any project worldwide and would thus set a new standard for the connection of offshore wind farms.
The new cable system is expected to reduce manufacturing and installation costs for the entire connection concept, including the HVDC offshore and onshore transformer stations. A reduction in dredging costs is also anticipated, as all cables can be laid in a single trench. Moreover, fewer offshore platforms and shore stations are required, resulting in lower emissions and environmental impact. The adoption of a 525kV 2GW grid concept is a logical step for TenneT after the installation of eight standard AC connections in the Netherlands. The TSO can already draw on extensive experience with DC projects in Germany.
TenneT has contracted eight cable suppliers to develop a 525kV HVDC offshore cable system with a 2GW capacity (exemplary picture of Riffgat cables: TenneT)
General Energy Transition, Germany, Grid Extension, Netherlands, North Sea, Offshore, Renewables, Research, Submarine cable, TenneT, Wind Energy
Deep Dig-It trencher at work for TenneT
The Hollandse Kust (South) offshore wind area in the Dutch North Sea is located 22 kilometres off the coast of the Dutch province of Zuid-Holland. TSCNET shareholder TenneT is responsible for connecting the wind farms under construction there via two corresponding offshore platforms to the onshore high-voltage substation in the industry and port area of Maasvlakte, from where the green electricity is transmitted further to the Randstad 380kV South Ring power line in the Dutch Randstad region, the most densely populated area in Europe, and further.
But there is a major challenge to be met by the Dutch-German transmission system operator (TSO): On the first ten kilometres of the offshore route, the four submarine cables to be laid are crossing the entrance to Europe's busiest cargo port, the port of Rotterdam. To pass through the busy Rotterdam-Maasmond shipping lane, the cables here must be buried more than 5 metres deep into the seabed. For this specific job, the Dutch maritime contracting company Van Oord designed and built the Deep Dig-It trencher, a gigantic remote-controlled trencher.
Last Friday, final tests were carried out in the Aleksiahaven of Maasvlakte in preparation for the actual laying of the submarine cables in July. The innovative device is a so-called Tracked Remotely Operated Vehicle, which drives unmanned over the seabed, creates a deep trench for the cables, inserts the cables and closes the trench again. The Deep Dig-It is the largest and most powerful machine in its class. The trencher weighs 125 tonnes, is more than 17 metres long, well over 8 metres high and 11 metres wide. This makes it possible to bury cables in very hard ground, while the burial depth that can be achieved with the Deep Dig-It is well over 5 metres.
TenneT employs the powerful Deep Dig-It trencher to connect the Hollandse Kust (South) wind farms to the onshore grid (picture: Van Oord nv)
General Energy Transition, Grid Extension, Hollandse Kust, Netherlands, Offshore, Renewables, Submarine cable, TenneT, Wind Energy
COBRAcable proves to be a great success
It is now half a year since TSCNET customer Energinet, the transmission system operator (TSO) from Denmark, and TSCNET shareholder TenneT, the Dutch-German TSO, made COBRAcable available to the market. The high-voltage DC cable with a length of about 325km and a capacity of 700MW is the first direct connection between the electricity markets of Denmark and the Netherlands. The basic idea behind COBRAcable is to compensate for the volatility of wind power. Consequently, the Netherlands imports electricity via the cable on days with large Danish wind power generation, while on days with little wind in Denmark the electricity is transported in the opposite direction.
This works perfectly, as the interconnector's transmission data from the first six-month period prove: In total, Denmark has imported almost 700GWh via the COBRAcable and the Netherlands almost 1,400GWh. On average, COBRAcable was operated at full capacity 79% of the time during the last half year. The impressive traffic on this binational connection proves its adequacy through its operation. The new interconnector therefore substantially contributes to the energy transition by exchanging volatile renewable energy across borders and additionally creates a trading profit on the spot market for electricity – a multiple benefit for nature, society and the companies involved.
The transmission data from the COBRAcable of Energinet and TenneT confirm a high level of traffic on the line (picture: screenshot taken from Energinet-video "Constructing the green COBRAcable", Vimeo)
General COBRAcable, Denmark, Energinet, Energy Transition, Europe, Interconnector, Market integration, Netherlands, Renewables, Submarine cable, TenneT, Wind Energy


Today marks the first day of school in many places around the world. I don't know how much you pay attention to news from other countries, but today began the first day of "glorious indoctrination and drill to the joy of our exalted leader" in North Korea. The Korean Central News Agency of DPRK, released the following photo of a happy classroom in Pyongyang leaving a recently constructed greenhouse.
Western operatives have informed us that the class is currently studying Wind Turbine Technology, Pneumatics, DC and AC Circuit Design, as well as Semiconductor and Digital Physics. Where the Hermit Kingdom acquired such knowledge has baffled western observers. One unnamed source described the technological advances as progressing at a "Z-boom pace."
My dad is on the roof, and he won't come down. He is yelling at the top of his lungs about a "nemesis" and "getting even" or something about an "embargo"...I think the neighbors are getting worried. They are gathering at the fence with lawn chairs and coolers. What should I do?
I would suggest bringing him a cold drink and reminding him of how much you love him and how you'd never do anything like that horrible nemesis does and when he's got things in perspective, ask for a new car or a trip to Europe or something good.
He is now making noises like a peacock, and flapping his arms. The neighbors appear engaged in some sort of wagering.
Well, it was bound to happen sooner or later. Cherish the good memories and if he recovers feel free to ask for something even bigger.
How did you take this photo and get out alive?
CNN reports that the Korean dictator, an expert on North vs South struggles, claims that the acquisition of a large army of tractor-tanks will bring him the final victory, and confirm his status as gentleman leader.
HMMM, a awful large head with out an sun shine on it on that little guy up front.
Astrocrabpuff, this photo was released by the state news agency, so thankfully we lost no men in obtaining this one.
Rob, when you put everything in perspective it is a little frightening. It seems like every week dictatorships have the ability to produce scary new mystery persons.
Anon, I agree. Like the old USSR, North Korea and Iran have released large numbers of suspicious images. Sometimes these nations are jokingly called the Axis of Photoshop. While Iran tends to multiply their military capability through creative editing (e.g. extra missiles), North Korea is in overdrive trying to show that their leader is alive and well (e.g. floating aides, green foliage in wintertime, disappearing and reappearing lines, funny tans, shadows that aren't congruent), etc. Regarding the large head, that is self-explanitory. You are correct, images like this are probably photoshopped, but that leaves the scary prospect that these Super Villains like those pictured may not be currently residing in North Korea. For all we know, they could have crossed our southern border and operating "fifth column" operations even within our own country!


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Press Release -- March 5th, 2013
Source: Huawei
Chen Lifang: Huawei Committed to Open IPR Licensing System and to Enhancing Europe's Role as a Global Innovation Leader
Brussels, Belgium, March 5, 2013]: Huawei respects and protects intellectual property rights (IPR) and is committed to an open IPR licensing system," said Chen Lifang, Huawei Board Member and Senior Vice President, today in her speech at the EU Science: Global Challenges, Global Collaboration (ES:GC2) conference in Brussels. "The IP that Huawei develops and acquires as a result of our participation in European scientific research initiatives will first be applied in Europe in order to help improve Europe's global leadership in the science and technology industries."
Chen Lifang continued, "Since its early years, Huawei has proactively advocated for strong IPR protection. Huawei is one of the first Chinese enterprises to have signed cross-licensing agreements with Western peers. Every year, Huawei pays approximately US$300 million in royalties to legitimately use the patented technologies of industry peers. Huawei also licenses our patented technologies to our peers. For example, just recently, Huawei and Spain's Teletronic entered into a commercial cross-licensing agreement for core LTE patents."
Huawei continuously contributes its own innovative patents to the industry. Each year, the company invests over 10% of its revenue in R&D - with 10% of that going to truly cutting-edge technologies. In 2012 alone, Huawei invested more than US$4.8 billion in R&D. And, as of 2012, the company holds more than 30,240 approved patents.
"Europe has a long history of scientific innovation. Nearly all modern scientific systems started from Europe in one way or another. Europe is also home to the world's best talent, educational systems, and scientific research institutes. Most attractive to Huawei is Europe's open scientific research environment and market system. The Horizon 2020 initiative of the European Commission promotes scientific research through government policies, openly absorbs capabilities from all over the world, and promotes cooperation between different parties. This initiative has set a benchmark globally. Huawei is committed to contributing to Europe's innovative capabilities and to the Horizon 2020 initiative," said Chen.
Huawei actively cooperates with European companies and organizations on the development of break-through innovations and then puts these products into their first commercial use in Europe. For example, using its SingleRAN LTE solutions, Huawei deployed world's first commercial LTE network for TeliaSonera in 2009 and deployed the world's first LTE DD800 commercial network for Vodafone in 2011. Huawei has built two R&D centres in Europe, and R&D offices in 12 European cities, employing 800 R&D engineers. This year, Huawei established two new R&D offices in Finland and Ireland and plans to double its R&D staff in Europe in the next three years.
"Under the global IPR framework, Huawei proactively cooperates with other enterprises. We oppose IPR monopolies as they create competition barriers among enterprises, which in turn hold back continued innovation across the industry. In the end, it is consumers who lose out."
"We urgently need to strengthen IPR collaboration and protection, including paid use mechanisms, to reduce disputes and promote innovation and technological advancement. To do this, enterprises, research institutes, academic institutions, government regulators, and other entities should cooperate in order to develop an open and unified industry standards system, thus providing a global platform for innovation. Huawei will leverage our global presence and influence to promote innovative cooperation across regions and around the world.
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redpajama_set_name: RedPajamaCommonCrawl


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Data is good right? The more data the better. In fact, there is a whole segment of IT related to data call BIG data analytics. Operations have data, tons of it. Every technology devices spits out gigabytes of data a day. The question is figuring out how to filter data. It's all about reducing that real-time stream of data into actionable information. Understanding service assurance correlation & analytics is all about focusing operations. That attention can produce that better business results. This blog details common concepts and what's available in the marketplace. I want show the value of driving data analytics into actionable information. Value operations can execute successfully.
Let's talk about terminology first. Correlation versus analytics is an interest subject. Most people I talk to, consider correlation to be only within fault management. Analytics includes TimeSeries data like performance and logs. Now I know some would disagree with that simplification, we can use it here to avoid confusion. Whether it be either term, what we look for is reduction and simplification. The more actionable your information is, the quicker you can resolve problems.
First step on the road to service assurance correlation and analytics is enabling a visual way to correlate data. Correlation is not possible if the data is missing, so have unified collection is your first step. Once you have the data co-located you can drive operations activities to resolution. Technicians can leverage the tool to find the cause of the fault. Drill-down tools can help uncover enough information. Then the NOC techs can perform manual parent/child correlation.
Once executed, users of the assurance tool can also suppress, or hide, faults. Faults that are not impacting or known false errors become sorted out as "noise". Assurance systems then leverage third party data to enrich faults. Enrichment would allow faults to include more actionable data. This makes them easier to troubleshoot. All these concepts should be second nature. Operations should have all these visual features as part of the assurance. Otherwise they are hamstrung.
Once you have a tool that has all your data, you will be swimming in the quantity of that data. You must reduce that data stream. If not, you will overload the NOC looking at the stack instead of the needle. There are many basic level strategies that allow that reduction.
First, look at de-duplication. This feature allows you to match up repeat faults and data points. Which eliminates 80% of duplicate data. Matching "up" to "down" messages allow elimination of 50% of your data stream. Reaping jobs can close out data that are not deemed "current" or limited log data. Another common feature is suppressing faults. Suppression by time windows during scheduled maintenance or excluding business hours. Threshold policies can listen to "noise" data and after X times in Y minutes create an alert. These features should be available on any assurance platform. If yours lacks them, look to augment.
If you have a NOC with thousands of devices or tens of domains, you need cross domain correlation. Root cause analysis is key to reducing complexity of large access networks. Performing RCA across many technology domains is a core strategy. Operations can use it for consolidated network operations. Instead of playing the blame game, you know which layer is at fault. Leveraging topology to sift through faults is common. Unfortunately its not typical in operations. Topology data can sometimes be difficult to collect or of poor quality. Operations needs a strong discovery strategy to prevent this.
Cluster-based correlation is another RCA strategy. This one does not rely upon topology data. The concept here is using trained or machine learning data. A written profile will align data when a certain pattern matched. The tools create patterns during troubleshooting process. Others have algorithms that align faults with time and alerts. Once the pattern matches, the alert fires causing a roll-up by the symptoms to reduce the event stream. This correlation method is popular, but hasn't provided much results yet. Algorithms are the key here. Many challenge its ROI model that requires machine training.
Next, RCA enables operations to become more customer-centric. Service oriented correlation allows operations to see the quality of their network. All through their customers eyes. Some call this functionality "service impact analysis". I like the term "customer experience assurance". Understanding what faults are impacting customers and their services enables higher efficient operations. The holy grail of operations is focusing on only root causes. Then prioritize action only by customer value.
Lastly, you can track customer temperature by moving beyond outages and into quality. Its important to under the KPIs of the service. This allows clarity on how well the service is performing. If you group these together, you simplify. While operations ignore bumps and blips, you still need to track them. Its important to understand those blips are cumulative in the customers eyes. If the quality threshold violates, customers patience will be limited. Operations needs to know the temperature of the customer. Having service and customer level insights are important to provide high quality service. Having a feature like this drives better customer outcomes.
The nirvana of correlation and analytics includes a cognitive approach. Its a simple concept. The platform listens, learns, and applies filtering and alerting. The practice is very hard. Most algorithms available diverse. They are either domain specific (website log tracking) or generic in nature (holtz-winter). Solutions need to be engineered to apply the algorithms only where they make sense.
One key use case is IPSLA WAN link monitoring. Latency across links must be consistent. If you see a jump, that anomaly may matter. The Holtz-Winter algorithm is for tracking abnormal behavior through seasonal smoothing. Applied to this use case, an alert is raise when the latency breaks its normal operation. This allows operations to avoid setting arbitrary threshold levels. Applying smart threshold alerting can reduce operational workload. Holtz-winter shows how cognitive analytics can drive better business results.
Under the basic correlation area I listed dynamic filtering. A fault can happen "X times in Y minutes". If so, create alert Z. This generic policy is helpful. The more you use it, you will realize that you need something smarter. Adaptive filtering using cognitive algorithms allows for a more comprehensive solution. While the X-Y-Z example depends upon two variables, the adaptive algorithm leverages hundreds. How about understanding whether the device is in a lab or a core router? Does the fault occurs ever day at the same time? Does it proceeds a hard failure.
You can leverage all these variables to create an adaptive score. This score would be an operational temperature gauge or noise level. NOC techs can cut noise during outages. They can increase it during quiet times or sort by it to understand "what's hot". Adaptive filtering enables operations the ability to slice and dice their real-time fault feeds. This feature is a true force multiplier.
The important part of correlation & analytics with service assurance is its value. You must understand what is freely available and it's value to operations. This subject varies greatly from customer to customer and environment to environment. You have to decide how far the rabbit hole you want to go. Always ask the question "Hows does that help us". If you are not moving the needle, put it on the back burner.
If you are not saving 4-8 hours of weekly effort a week for the policy, its just not work the development effort. Find your quick wins first. Keep a list in a system like Jira and track your backlog. You may want to leverage a agile methodology like DevOps if you want to get serious. Correlation and analytics are force multipliers. They allow operations to be smarter and act more efficiently. These are worthwhile pursuits, but make sure to practice restraint. Focus on the achievable, you don't need to re-invent the wheel. Tools are out there that provide all these features. The question to focus on is "Is it worth my time?".
This entry was posted in Guides, Service Assurance and tagged Big Data Analytics, cluster correlation, cognitive reasoning, Correlation, customer impact correlation, root cause, Service Assurance, service impact correlation, service quality management, suppression on December 11, 2017 by ennissh.


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Life Sciences and Agriculture
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BioTechnologia | 2012 | No 4 |
1 6th annual International Biomass Conference & Expo • 12th International Wheat Genetics Symposium • Antibodypedia • CNIO and Nature joint events •The first use of anti-cancer engineered T cell therapy in children • The scientific world criticizes the study by Gilles-Eric Séralini et al. concerning health risks arising from genetically modified maize • Whole genome sequencing of circulating DNA in cancer patients.
J. Przybył
BioTechnologia | 2012 | No 4
2 A brief overview of the process of the elucidation of GnRH structure (1971)
K. Kochman
3 Artemisia species in vitro cultures for production of biologically active secondary metabolites
M. Grech-Baran, A. Pietrosiuk
4 How to study G-quadruplex structures
M. Małgowska, D. Gudanis, A. Teubert, G. Dominiak, Z. Gdaniec
5 Non-nucleosidic analogs of nucleic acids
J. Brzezińska, K. Adrych-Rożek, Z. Jahnz-Wechmann, J. Boryski, W.T. Markiewicz
6 New insights into the signaling and function of cytokinins in higher plants
A. Ciesielska, M. Ruszkowski, A. Kasperska, I. Femiak, Z. Michalski, M.M. Sikorski
7 Molecular mechanisms of genome expression of coxsackievirus B3 that belongs to enteroviruses
Mariola Dutkiewicz, Agata Swiatkowska, Agata Ojdowska, Barbara Smólska, Teresa Dymarek-Babś, Anna Jasińska, Jerzy Ciesiołka
8 Protoplast fusion of Rhizopus oryzae and Rhizopus microsporus for enhanced fumaric acid production from glycerol
M. Kordowska-Wiater, M. Polak-Berecka, A. Waśko, Z. Targoński
9 Phytotests as tools for monitoring the bioremediation process of soil contaminated with diesel oil
D. Wieczorek, E. Kwapisz, O. Marchut-Mikołajczyk, S. Bielecki
10 REVIEWERS 2012
MAREK FIGLEROWICZ Institute of Bioorganic Chemistry, Poland
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BIONANOTECHNOLOGY MARCIN K. CHMIELEWSKI Institute of Bioorganic Chemistry, Poland
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PLANT BIOTECHNOLOGY MICHAŁ JASIŃSKI Institute of Bioorganic Chemistry, Poland
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The Nakhla Dog
When The Blob was launched in January 2013, it was to record the process of transition from being a gentlemanly part-time, cash-poor, time-rich researcher attached to Ireland's premier University to becoming fire-hose active as a full time teacher in a Technology Institute. Since then, like Topsy, the Blob just growed: extending its curiosity tentacles into places a long way from The Institute; which continues to pay my salary even though I have no classes to teach until September. From the sofa of my mountain fastness, I range across space and time to find things that deserve a better press. There was, for example, Slijper's goat, the little caprid that could; and Mary Anning's dog, killed in the line of duty in 1833.
Anning's dog Tray was an important part of the team, being told to Stay beside an interesting fossil while Anning trudged back along the beach to get the right tools for bagging it. The Nakhla dog, otoh, was mere collateral damage when a meteorite came explosively to earth at 0900hrs on 28th June 1911 at El Nakhla El Bahariya, a village in Egypt. There were lots of people out and about at 9am and, although none of them had dashcams or cell-phones like at Челябинск Chelyabinsk on 15 Feb 2013, there were dozens of eye-witness and 40 fragments were recovered. Many of the bits were dug out of the earth at the bottom of an impact crater and up to 1 meter below grade.
The event gave rise to the eponym Nakhlite for a specific and peculiar class of mineral. They are the N in SNC meteorites which I wrote about last year. SNC meteorites are interesting because the share the same geology, especially wrt gaseous inclusions, as Mars, our nearest neighbour beyond the Moon. For one of these fragments to be found on Earth requires an improbable chain of rare events:
A meteor has to strike Mars
It has to be sufficiently large to whack off a lump of the red planet
That lump has to come within gravitational range of Earth
and eventually collide
it has to be sufficiently large itself that it doesn't vaporise in the atmosphere
it has to fall during the working day
in a place where people are about (ie not in the sea which cover 70% of the Earth's surface)
the people have to be idle enough or curious enough to look for the bits, which are unlikely to be lying on the surface.
and it's not much use to science if the SNC fragment finishes up on the mantlepiece of a hut in Siberia or Rwanda.
There are nevertheless 132 of these Martian rocks known to science.
Yes yes, but what about the dog?? One of these hot, hard and fast Nakhla rocks was observed by a farmer, Mohammed Ali Effendi Hakim, to hit and vaporize a neighbour's dog. Which sounds a little unlikely, not the hitting, which happens - ask Ann Hodges of Sylacauga AL - but the vaporisation. You might think that the question "can a rock vaporise a medium sized mammal?" is amenable to testing or modelling by Mythbusters or The Slow Mo Guys [whom bloboprev indeed blobobleve]. The chunks of the Nakhla meteorite were from 20g to 2000g, the larger chunks having more kinetic energy and more vaporisation potential. If the original meteorite was comparable to the Chelyabinsk event, it was travelling at 18,000m/s, which is about 10x faster than the fastest speeding bullet. But 18,000m/s is the impact velocity rather than the terminal velocity having travelled several km through the viscous atmosphere, which is only about 200m/s. I doubt if the [British] Slow Mo Guys are heartless enough to practice their photographic arts on a dog, alive or dead. But I'm sure their ingenuity and contacts will find them the artillery necessary to fire a 500g projectile at 200m/s at a dead goose and see if they can find any solid bits.
Emily Graslie [prev] talking about meteorites and meteowrongs.
Jason Kottke says, The Case Is Altered when you get a really big Cretaceous extinction meteorite incommming.
A short walk by the river
Use your shirt-tail
Trade war TransAtlantic
Losing it.
Literati Indiana
Sunday Sundae 240618
Koko gone
Death on South Georgia
Threeway in the Balkans
The PrEPpers are OUT
Balkan punctilio
Saturday Morning Post
Konnichi-wa ConIFA
Proactive serendipity
A free lunch
Sunday backstory 100618
Flyin' high, now dead
Shoulder roll
Bloody Sugar
Bomb calorimeter
Tree down!
Ghost Net
Sunday Sort 03 Jun18
It pays to increase your word-power
Pay attention; write it down


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Alison Smith is professor in the Department of History at the University of Toronto. Her early research focused on the production and consumption of food in eighteenth- and nineteenth-century Russia, leading to several articles, a book, Recipes for Russia: Food and Nationhood under the Tsars (NIU Press, 2008), and an article on national cuisines in the Oxford Handbook of Food History, Jeffrey Pilcher, ed.
More recently, she has examined social identities and social mobility in Imperial Russia, through an investigation of how individual Russians negotiated their soslovie (social estate) membership through interactions with local and central authorities. She has published a book (For the Common Good and Their Own Well-Being: Social Estates in Imperial Russia (Oxford University Press, 2014)) and several articles on this subject. She is also taking advantage of her Canadian location to think about Russia as a northern power, initially through co-teaching a course on, essentially, Arctic world history.
Now, she has begun a new project focusing on the palace, town, and larger rural world of Gatchina, and particularly on the many people who lived or passed through the area. The story of the dead cheese master presented here is just the start.
She also tweets occasionally @profaks
Additional publications:
"Freed Serfs without Free People: Manumission in Imperial Russia," The American Historical Review 118, no. 4 (October 2013): 1029-51
"The Freedom to Choose a Way of Life: Fugitives, Borders, and Imperial Amnesties in Russia," Journal of Modern History 83, no. 2 (June 2011): 243-71
"Authority in a Serf Village: Peasants, Managers, and the Role of Writing in Early Nineteenth Century Russia," Journal of Social History 43, no. 1 (Fall 2009): 157-73
"National Cuisine and Nationalist Politics: V. F. Odoevskii and 'Doctor Puf,' 1844-5," Kritika 10, no. 2 (Spring 2009): 1-22
"Eating Out in Imperial Russia: Class, Nationality and Dining before the Great Reforms," Slavic Review 65, no. 4 (Winter 2006): 747-68
"Public Works in an Autocratic State: Water Supplies in an Imperial Russian Town," Environment and History 11 (2005): 319-42


Google Classroom is an easy to use online tool that allows teachers to send information to students in their classes. Sometimes, this will be simple class messages ("Don't forget to come to the revision session tomorrow lunchtime"), but more often it will be instructions and resources for homework.
Your son/daughter has a Google Classroom "class" for all of the subjects on their timetable. By logging in to either the Google Classroom website in a web browser or by using the Google Classroom app (Google Play, App Store) on their phone/tablet, they can see all of the "announcements" (messages) and "assignments" (homework) that their teachers have sent them. There is also a handy "To do" list (and a longer term calendar) that collects all of their upcoming homework deadlines in one place. They can also set up notifications and reminder emails, to help them to never miss a deadline. Why not ask your son/daughter to show you Google Classroom from their account, so you can better understand what they experience when they use it?
As a parent, you do not have the same level of access to Google Classroom. However, the school can associate your email address(es) with your son/daughter's Google Classroom account as a "guardian". This means that you will be sent a summary email (daily or weekly, as you choose) which includes all of the announcements and assignments by class. This is very useful, in particular, in helping students with their homework and guiding them in managing their time and meeting deadlines. We add all parents automatically using the email address given on the "data checking sheet" that you return at the start of each year. However, if your email address changes or if you would like further "guardians" added, please let us know.
Is all homework recorded on Google Classroom? What about the paper planners?
Yes, all teachers will record all homework tasks as a Google Classroom "assignment". If your son/daughter clicks/taps on their "To do" list (or the Google Classroom calendar) they will see a list of all of their homework along with the deadline. As they complete each piece of homework, they can mark their homework "as done" within Google Classroom and this will remove it from their To Do list and Google Classroom will stop sending them reminders to do it.
Students still have a paper planner and we still encourage them to use it if it works for them or if they do not have easy access to Google Classroom at home.
Why does my son/daughter have so much overdue homework?!
When you receive your summary emails from Google Classroom, listed first are any homework pieces that Google Classroom thinks are overdue (ie not done). This list can be quite long and, as a parent, it can be quite alarming to see. However, it probably doesn't mean that your son/daughter hasn't done their homework!
Most teachers recording homework on Google Classroom are not collecting it (electronically) via Google Classroom. Google Classroom is therefore unaware of whether the homework has been submitted or not. We are trying to encourage students to click the "Mark as done" button that appears on the homework task in their Google Classroom once they have completed it. Some students are getting very good at remembering to do this, but some are still forgetting. If you are seeing a long list of "missing" homework in your email summaries, please first ask your son/daughter if they are remembering to do their Google Classroom housekeeping before worrying that they have not done their work. Remember, whenever any homework is not handed in on time, you will receive a notification email from Fallibroome's "Ready To Learn" system. If you don't get an email from RTL, your son/daughter is doing everything on time, regardless of what Google Classroom thinks!
Why am I not receiving any guardian summary emails?
Summary emails are only sent out if there is something to put in them. If your son/daughter is having a (very rare indeed!) day/week without any announcements or assignments, you will not receive an email.
Why can't I see any attachments?
Lots of announcements and assignments posted by teachers will include attachments or web links. Unfortunately, these are not shared with parents in their summary emails. You will need to access Classroom via your son/daughter's account to see these.


your career to date? Defining moments have happened throughout my career – from developing and launching great initiatives like FRIDGEPACK and our very first small PET multipack to the work we are leading in strategic planning with customers and partners with the Coca-Cola Way of Shopper Marketing. Additionally, I am proud of the work I led to build a leadership market and business development process and plans for strategic markets like New York, Miami, and DC. And most importantly, it has been incredibly rewarding to see teams I've built and led achieve results, support each other and overcome challenges together.
Most challenging part of your job: Balance. Being a leader, single mom, friend, sister, daughter, coach and volunteer requires balance. And while balancing all of these roles is my biggest challenge, the results are my greatest reward.
Advice for upcoming younger executives: Create your own roadmap for success. Chart your path and remember it may not always be a straight line up. Don't choose jobs based on title/pay alone – be sure to balance with passion for the work. Always think ahead when making your next decision. And most of all – take all your vacation. That time is meant for you to recharge and make memories with your friends/family.
Hobbies: Travel and food (from food trucks to James Beard) are my passions. Each year, my 11-year-old daughter and I map out our bucket list and plan our vacations. At least one trip must require our passports! We also enjoy reading, skiing, and cooking straight from our garden.


When I first arrived at Peterhouse it was from a Government School in Salisbury, and I had not spent much time away from home. The whole arrangement was somewhat alien, and there were several practices that seemed to be totally unnecessary, like wearing special clothes for the evening meal. My mother was from New Zealand where English traditions were probably more common than in England, but which was in something of a time warp as I found later, but that did not prepare me for what I thought was a strange custom, in summer anyway.
However, I was there to stay, so there was nothing for it but to knuckle down and come to grips with the procedures however odd I thought that they were.
The first days seemed to be designed to be difficult just for the sake of it as I had a timetable for classes, but no-one seemed to know where the classrooms were. That seemed an unnecessary and strange way to manage anything, and I thought it was some ritual to allow the old hands to be superior. It turned out that everyone in the school, even the old hands (pupils and teachers) were subject to the same problem. New classrooms had been built during the holidays, and the whole lot renumbered, but the numbers had not yet been put on the rooms, so no one knew what was happening. I think that from that experience I developed a suspicion that nothing was as it seemed.
Anyway, in thinking back to those days, it seemed easiest to just brain dump the various images that came back to mind.
I started out in Grinham, which was brand new. It was spartan, as there really was no need for comfort. I had not slept in a dormitory before, and that was an interesting experience, as was the seeming impossibility of fitting all my possessions in one locker. The lockers had two doors, the top one opening on to one compartment, and the bottom one on to three compartments. The problem with the compartments was that they were so high that of necessity things had to be piled on top of each other, making retrieval of anything in particular an interesting exercise, usually resulting in a pile of stuff on the floor that had to be jammed back in a hurry. Getting up in the morning was a particularly hurried time as the wake up bell went at 06:00 and we had to be at our desks by 06:15, having had a cold shower and being dressed.
Grinham has electric fans for heating, which were more expensive to run than expected, so there were not always allowed to run when it seemed cold.
In those early days, the desks of us younger ones were in a communal 'prep' room. Later we graduated to Toyes, which helped the problem of finishing off the dressing process as long as one could avoid the prefects.
It was cold in winter!
Later when Founders was built, I was transferred there, so becoming a founder member of Founders.
Founders had a steam heating system which was erratic, but it was allowed to be on more than the electric fans in Grinham, but it made a very load clanking noise at times. They did provide one source of entertainment as the pipes that went across the rooms could be hung on and swung from.
Meals were taken in the main hall, which changed its name depending on the circumstances, from Dining Room to Chapel until there was one, and also doubled as a place for watching films. The food itself was not memorable, good or bad, but there was a degree of suspicion that when broccoli was served it had been extended by the addition of khaki weed.
There were two notable events while I was at Peterhouse, which came back to mind. The first was an interesting reflection on the effects of a 'strike' or withdrawal of labour. When I first went there, there were people in the kitchens making the meals, and another other set that delivered the food to the table. The food came in copper bowls about 8 inches across, which had an aluminum liner with a small air gap between them to hold the heat, or cold. Anyway, one day the waiters decided not to turn up for work, so to get around the problem, one boy from each table was sent to get the bowls, and in due course to take the used plates back. This process made the whole meal time so much shorter that the 'waiters' were no longer required.
The other was a table collapse. The tables seated 4 on each side, sitting on forms without backs, then had one additional seat at one end. This was for a supervisor, e.g. a prefect. The first tables to be made were incredibly solid (and horribly heavy which we knew all about when they had to be moved to the side of the hall for some reason). A later set of tables were of much lighter construction, and unfortunately their legs were not very sturdily attached. A table that I was on was getting very wobbly, so we reported the problem several times but nothing was done. Finally, as we got up after one mean the legs fell off one end, and when the end of the table dropped to the floor all that was left shot off to the other end of the hall. Fortunately there was not much left. I think there was suspicion from the top table that the event had not been entirely an act of nature, but we couldn't possibly comment on that! The tables were fixed shortly afterwards.
The food that I remember most, other than the broccoli stuff, probably because I don't get to eat it these days was Zambesi Mud which was a quite palatable chocolate desert, and of course Mealie Meal pudding. I think we had it more as a desert and as Sudza. We used to put butter (on the one day a week that happened) or margarine which was a particularly solid variant.
As a light relief, some of us used to make 'candies' for sale. We discovered that by adding powdered milk to boiling melted sugar, then at the last minute adding sherbert produced a very nice crunchy sweet. We could sell that at quite a bit more than the cost of the ingredients. Maybe that should be claimed as an education in how to be an entrepreneur.
There were three sets of clothes, called No 1, No 2 and No 3.
No 1 was the dress uniform. This had to be worn every evening, for Sunday Chapel, and whenever outside the school grounds, particularly if in Salisbury. The uniform consisted of white shirt, grey flannels, very blue blazer, blue tie and a grey hat. Shoes were also required, but I don't remember what colour. Probably black, and of course they had to be properly polished and shiny. When I first went there the hat was the only allowable headgear to wear with No 1 uniform, but later the hat requirement was dropped, and since there had to be headgear the cap was allowed. The tie presented some difficulties when I first went there, but major difficulty came with the shirt collars which were stud attached.
When a bunch of boys was allowed to go to Salisbury, it was usually to some event where there were other schools represented. When the purple of Churchill, and the bright red of St. George's were together it looked like a pageant. At least we from Peterhouse didn't have to wear boaters!
No 2 was the learning uniform. It consisted of khaki shirt and shorts (no tie thank goodness) and khaki stockings, and of course shoes - brown I think. The real bane of our lives with this ensemble was the garters and garter tabs. Both of these, but especially the tabs had a mind of their own and were for ever disappearing. The basic idea of the tabs, as they were colour coded, was to allow teachers to easily identify which house boys were from. There were supposed to be two tabs showing on each side, with two points of some prescribed shape showing. When one tab set disappeared, it was possible to avoid the complete absence of tabs by cutting them in half. Unfortunately some teachers took great delight in detecting that transgression at every opportunity and dishing out some punishment. Others were much more easy going, and accepted that such things did happen, and that it was not the major issue of having no tabs.
There were strict rules on the length of shorts. They had to be 3 inches measured from at the back of the leg while kneeling, with not much leeway. This did cause some annoyance for parents as it was very difficult to buy clothes for growing boys that could last more than a few terms with such tight parameters. Fortunately, for the parents, being too long was less of a transgression than being too short.
No 3 was the general sport uniform (there were more specific uniforms for cricket, rugby etc.). This one was really just white tee-shirt, and white shorts. Optionally tackies could be worn, but they were not compulsory.
In the early days school trips would be taken in the school open backed Bedford trucks. They were not comfortable to sit in, so standing was usual. These days such things would be against the law, at least n New Zealand. If the weather was cold, there were covers for the top and the sides, which also hid the boys from the view of the driver, and, more importantly, the supervising teacher, so there was some smoking along the way.
When the veldt got on fire, there was no question that it had to be contained and extinguished as quickly as possible. On one occasion, a few days after term start, we had a new teacher recently arrived from England. As soon as the smoke was seen, the class got up and went off to the fire. The teacher, who hadn't heard of such things as bush fires, was almost apoplectic as the class left. It must have been a dangerous activity as the fires swept through very fast, and at times we were attempting to beat it out with branches from trees which were very keen on burning. I don't remember anyone getting burnt, but there were times when I could feel the skin on my face drying up. By the time the fire was out, the school trucks were mobilised, and they returned the boys to the swimming pool to cool, off. If we had been wearing No 2s we took them off, but if it was No 3s, we were into the pool clothes and all.
When I first went there, there was one small swimming pool up near the Rector's lodge. It really was not big enough for the numbers, so it was great when the bigger one on near the lower fields was built. I think both pools had rudimentary filtering systems, but they were generally filled with green water and frogs. The school lake was always tempting, but was totally out of bounds for swimming because of the parasitic diseases.
Entertainment by means of radios and television (not that there was much of that in the country) was strictly not allowed. We were there to learn first, and play sport (for those who could) second and, it seemed, to enjoy it third. Plays and musicals were staged, and I thoroughly enjoyed working on Martin Graham's productions, the spectacular setting for Hamlet being most memorable. I worked with Anthony Holderness on the lighting for which we had two huge towers to mount the spotlights. We had to get power from the classrooms as the open air stage didn't have any of its own, and had to join several cables together. I don't suppose we would have got away with that if we had been in Salisbury! We did have to do a rapid repair job when we wired the cables up incorrectly at one stage, and blew several fused while generating a huge bang. It was on a Saturday afternoon and we to sort that out before anyone noticed.
As it was a boys only school, inevitably some boys had to play girls, for which they were teased, of course.
There were several floods while I was there. I think that because there was either no rain for long periods, or there were regular short periods of rain, any major downpour was not catered for until it had demonstrated what the draining need was, and where it should be. The main boiler room got flooded once (being below the surrounding ground that was perhaps inevitable) which meant cold showers and no heating for a few days. That vovelty wore off very quickly!
While the chapel was being built, there were nearly two disasters. While the walls on either side of main door at the end of the nave were being built, they formed coffer dams. As they filled up with water, they started to bulge. Fortunately they did not self destruct as the water was let out in time, but we rather hoped for something spectacular. The other was a more interesting event to observe. The huge stone walls on the sides, that are essentially free standing, depended very much on the stability of their foundations. Some of those walls, on the administration block started to lean towards the admin block as one side subsided. I don't know how they straightened them up, but we thought that we were going to be for in an interesting pile of rubble. After that, in the boring moment in chapel, I used to look at the beams and wonder whether they were just supporting the roof or whether they were also holding the sides together.
When the chapel was finished, and after it had its electronic organ installed, the pomp and circumstance ramped up somewhat. We had 5 archbishops there for one service, Dr Fisher who was Archbishop of Canterbury at the time (and his son Charles was senior master at the time) and the archbishop of Mashonaland was there and at least one from South Africa. Lots of Mitres were seen.
Unfortunately the electronic organ was in the habit of developing bad notes. John Hodgson was adept at transposing hymns and other musical material on the fly, and could avoid the bad notes once they had been found.
Fred Snell used to give John Hodgson a rest at the daily chapel (on Wednesdays I think) but although competent at reading the music and playing it in the normal manner, he was not so good at the transposition. Horrible noises would appear randomly in hymns, and of course the boys thought that this was hilarious. Fred also had quite short legs and they used to slip off the foot rest and randomly strike a pedal - usually in the most silent periods of a service. Once again, that was considered hilarious.
Some of the teachers that arrived from England were somewhat naïve about the realities of the tropics. One of the flooding episodes caused the row of classrooms closest to the science block to get a large amount of water in them. This was cleaned out before classes started, so it was just a bit damp. However, the cleaners left the hose behind. I am not sure how it was done, but once the teacher was on his podium, the water started to flow. We must have known as we kept very quite and just lifted our feet, but in due course the teacher found himself on an island. Clearly it could not have been us - but we may have had the idea and prompted someone else to do it.
I was happy to do athletics, as I was able to do the longer distances, like 880 and mile, and the steeplechase, which I think was 7 miles. The steeplechase provided an opportunity to delve into things that would not otherwise be available. We needed to be able to know how the races were going, and as we didn't have helicopters or mobile telephones, it had to be done by having watchers stationed at strategic points and reporting back to base. Radios left over from WWII were used for this purpose, and of course they had to be tuned and tested, and of course while this was going on could standard radio signals - at least that was our story and we stuck to it.
The academic side of life did not present me with a major problem. No doubt I could have been more diligent at schoolwork, but the school environment provided opportunities for other activities which I enjoyed. By the time I got to the last year, the various privileges about (later) lights out time, and (later) getting up time, and being out of the house in the evenings could be used to further other activities. A number of projects were embarked upon to provide interest in our lives.
As a result of having the radio equipment for the steeplechase, we were able to have radio equipment for our own entertainment. Our Toyes had a bench, a desk and a cupboard and a bookshelf, and it was panelled in wood. By wiring the panelling we had a signal going to each seat that was invisible unless you knew what to look for. Two small holes in the panelling went through to the wires. By sticking the two connector pins of simple earphones into the holes we could pick up the radio, and we kept them in place by leaning on them. If anyone in authority came into the room, it was not obvious what we were doing, and if we sat up the earphone just fell away out of sight.
Alcohol was of course not allowed to be brought on to the school premises. The rules did not, however, explicitly say that it could not be manufactured although that was implicit. The food served usually included fruit of some kind each night. By taking the appropriate food out of the dining room, and by borrowing flasks and piping from the science department we were able to set up fermenting stations to produce fermented concoctions. It was amazing what used to turn into alcohol. There were a few horrible experiences when the plumbing got blocked up and half fermented liquid got pumped all over the desk and seat of the poor unfortunate person. Once the half fermented liquor which did not have much alcohol initially hit oxygen, it went decidedly off very rapidly. Fortunately there was a sink in our room, so it was logical that we also had cleaning materials. We usually never used them, but they were put to good use in one of these emergencies. The biggest problem was restoring books to a reasonable smell, and unsticking them.
That entertaining period came to an end when the science department started to find it difficult to function, and had to initiate an amnesty to get its equipment back.
As my family lived close to Peterhouse in later years, I was also able to get access to a car. This was of course not allowed in the school rules, even when dressed in # 1 uniform. On Sundays, when we were supposed to be on outward bounds, I and my mates used to go home and get the car, and go off somewhere (not necessarily to Marandellas). We were dressed pretty obviously in No 3s, so there must have been people that knew. One day we had a great laugh as we drove down the Boulders drive, and were hailed by some small PH boys who asked for a lift so we picked them up. They kept calling us Sir, not knowing who we were or where we came from.
One memorable day we were going along the road to Marandellas, and to our horror we saw Fred Snell's red and grey Vanguard coming towards us. In a panic I said 'duck' and the passengers, all ducked while still barrelling along the road. To my horror, afterwards, I realized that I had ducked too. Fortunately we didn't hit the Rector's car, which would have been embarrassing. Our car was bright green and as noticeable as his, so I often wonder whether he knew who it was, or whether he just didn't notice a car going along the highway without a driver.
Folliott Fisher and I used to read the New Scientist and Scientific American, and one (or both) of these excitedly reported the invention of the Hovercraft. We had done the usual rounds of making model 'planes and this seemed so much more worthwhile as an activity. We studied the theoretical designs, and worked out how we could make a model Hovercraft as long as we could get the materials.
Essentially, a Hovercraft is a big engine to make lots of air, and a skirt to direct the air in the right direction underneath. I realised that a vacuum cleaner engine mounted the other way round would make a suitable source of air, and it so happened that I knew that we had an old Hoover vacuum cleaner at home whose motor was rapidly failing due to a worn out bearing. I also knew where I could get hold of a roller bearing. I figured that if I could get access to the science department lathe, I could replace the original bush bearing with a roller bearing, and we would have a resucitated motor. So, I offered the use of the motor for the project, and negotiated with Dr James Milford for use of the lathe, and for a small piece of brass that I could turn into a fixed bush to keep it all tightly bound together.
The next step required a leap of imagination, which came to us when some new plastic bowls were delivered to our house washroom. We reasoned that if new ones had been delivered there must be a stock of old ones somewhere. In due course we found where they had gone, and (officially) got some. It is probably not feasible to describe the design in words, so suffice to say that we managed to create a sort of vehicle that suspended itself on a cushion of air. We used a variable output transformer from the science department (officially), and were able to demonstrate the principle of the Hovercraft to parents on open day. As that had to be done on a table for best effect we were a bit worried that it would self destruct if it ran off the edge of the table, but it solved that problem for itself by sitting down on its skirt abruptly as it went over the edge and lost pressure.
So, a win-win situation resulted - impressed parents in general, and for mine in particular a mended Hoover vacuum cleaner.
We called out invention a Hoovercraft. We had to dismantle it, but I believe that if I looked hard, I may be able to find the design drawings such as they were - if anyone is interested.
As part of our Higher Maths classes, which were taken by John Greenacre, we somehow ended up starting on a project to build a demonstration computer. Mr Greenacre managed to get several relays and uniselectors from some friend or acquaintance in Salisbury. The theory of programming was not too difficult and that side was handled by John Dawson and others whose names I have unfortunately forgotten). I ended up with the task of making the paper tape for the program. Again, the science department lathe came to the rescue.
By replacing the switch wheel off the uniselector with a wheel of the right diameter, and inserting pins in it radially, a way of moving tape could be set up. The tape was, I think, accounting machine tape, i.e. it was about two inches wide. It is not very strong paper, so the holes could not be too close together. With one line of holes for the sprocket feed, that left room for three data holes. Each time a row of holes was lined up ready to be sensed, contact had to be made, then the tape could be moved on to the next row. There had to be synchronization between the timing on the uniselector that moved the tape, the sensing cycle which then had to switch off its current to avoid spurious effects from bounce on the contacts.
Clearly with only three data holes, the scale of a calculation was not great or useful other than as a demonstration of the idea, but it did (often) work. We had the great advantage that none of the people that we were demonstrating this to had any idea about computing, so we were able to cover up the misbehaviour. We would ask for a simple addition or subtraction from the watchers, and then we would process it. For example if they said add 2 and 3, we would tell them that 2 was represented by 010 in binary, and three by 011. We were careful not to say what the answer was supposed to be in binary. We would feed in the two values, do the mechanical feed of the paper tape, and the result would come up on the light display. It should of course have come up as the binary for 5, i.e. 101. It usually did, but even if it did not we could quickly say 'there you see the answer is 5' and clear the display.
The value in the project was in the experience of programming, then the experience of creating something that could drive it automatically.
There were other things that I was involved in during my school days, but I think the ones above cover the general good memories.


Our clients expect us to identify the best individuals to fill roles within their business. To do this we proactively source top performers across the UK and South Africa by using a combination of Job Boards and Social Media. Certain assignments are run confidentially (without reference to the data subject) and we do also run advertising campaigns to source suitable individuals. We will always initiate contact with you via phone or email to ensure you are interested in a role before submitting your details / CV / personal data to a client.
To offer our services effectively, we research systems, online databases and network with people in industry. Due to the nature of our role we are required to process personal data quickly, confidentially and often without reference to the data subject. We process such data in accordance with the Data Protection Laws, regularly using our legitimate interest where it is not possible or feasible to speak directly with the data subject.
We collect information from candidates through research, directly when you submit your CV to an advert or when you send this to us via email or post. We also collect information from you when you speak with any Ntice employee.
• If we believe you are suitable for a specific role, we will reach out to you to discuss the role – via email or phone.
• We will discuss the role with you, if you are interested in the role we will ask for a copy of your CV which we will then share with our client.
• If successful, you might be shortlisted for an interview with our client.
• For the CV Writing and Social Media Profiling services, we will require relevant information from you to enable us to create and compile this offering.
• We may invite you to become a candidate in respect of the provision of our recruitment services.
What do we collect and process?
We collect and process personal data about you, your name, address, telephone number and personal and work email address. We will only use your information in accordance with this Policy, or where we are required or authorised by law to disclose your information to others or, have your permission to do so.
• If you respond to a job advert or we contact you to discuss a role, you will be asked to submit additional personal data.
• This includes information such as, education current and past career history and CV.
• Your CV may contain employment history, education, professional qualifications, and memberships, details of papers written, references and referees, amongst other things.
• We may also collect personal data from third-party databases and other public sources.
• As well as basic contact information we will also collect information about your role and other information provided to us by your organisation.
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Our aim is to safeguard your privacy whilst providing an excellent service to our candidates and clients. Collecting personal data is necessary in order for us to identify the best individuals for every role we work. We protect your personal data, from misuse, loss, unauthorised access, modification or disclosure. Please note we do our utmost to safeguard your data, but no system can ever declare that they are 100% fail proof and we cannot be held responsible for unauthorised or unintended access that is beyond our reasonable control.
• We will do all that we can to protect the personal data that you share with us through reasonable technical and organisational safeguards and measures.


text:
Q: Using SQL parameters to protect my application against injection attacks I can't use SQL parameters in Delphi, if I try to use them to protect my login form, I get the following error upon login

[0x0005] Operation not supported

The code I am using is :
SQLQuery1.SQL.Text := 'SELECT * FROM registered WHERE email= :Email'+
                      ' and login_pass= :Password';
SQLQuery1.ParamByName('email').AsString := Email;
SQLQuery1.ParamByName('password').AsString := Password;

SQLQuery1.Open; // Open sql connection
if SQLQuery1.recordCount >0 then form2.Show;

but it is not working, the code below works correctly but is it always unsafe :
SQLQuery1.SQL.Text := 'SELECT * FROM registered WHERE email="'+Email+
                      '" and login_pass= "'+Password+'"';

I am using TMySQLConnection and TMySQLQuery components, set ParamsCheck to True, and using the first code mentioned above which doesn't work, how to correct the problem!
Any suggestion or help would be appreciated.
Thank you

A: Check the help for "RecordCount". It may raise an exception if the dataset can't determine how many records are returned. What if you remove it and simply check if the dataset not IsEmpty?

A: Use salted hashes for your password check
Storing a unencrypted password in a database is a no-no.
Use a salted hash instead:
SELECT * FROM registered WHERE email = :email
AND passhash = SHA2(CONCAT(salt,:password),512)

You can store the passhash in the DB by doing:
INSERT INTO registered (email, passhash, salt)
VALUES (:email, SHA2(CONCAT(:salt,:password),512), :salt)

The salt does not need to be truely random, but it does need to be somewhat random and different for each user.

redpajama_set_name: RedPajamaStackExchange


The Playhouse Company has become well-known for their dance residency that allows dancers the space to make challenging choreography on the body. Their latest marvel is Ukuzinza, meaning rooted, choreographed by the noteworthy Mzokuthula Gasa. Gasa brings a fresh ferocious energy into the 10 dancers, all of whom must be commended for their strength, speed and stamina.
I relished in the images and poetry of the movement that reminded me of what joy it is to be African and even through our hours of struggle and turmoil, we have much to celebrate. The opening gave birth to multitude of images. We were swept across the wild planes of Africa with sounds and pictures of animals, then transported to the hustle and bustle of city life. The sound of cattle horns herded us into this fierce world and held us captive as the dancers twirled, twisted and trampled across the stage with such pace and poise.
We were reminded that while we are different, in Africa, it is our differences that pull us together. There was a myriad of styles, techniques and solo showmanship at hand yet they all meshed together into a tight fisted dance work. It was an amalgamation that was a true reflection of what Africa is like. We were privy to African contemporary, ballet, tribal dance and so much more. I was impressed by many of the dancers on stage as they embraced their own technique and allowed this choreography to nudge them out of their comfort zones. They dug deep to find the spirit of Africa within them and dance a united front.
I was mesmerised by the dance work and the connotations of Africa that were brought up and as the opening image of the umbilical cord suggests, Africa is within us all. A well-earned standing ovation.


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Last updated Wednesday, March 27, 2019.
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