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Paper Count: 4300
Search results for: UAS ground control station.
4300 Towards for Admission Control in WIMAX Relay Station Mesh Network for Mobile Stations out of Coverage Using Ad-Hoc
Authors: Anas Majeed, A. A. Zaidan, B. B. Zaidan, Laiha Mat Kiah
WIMAX relay station mesh network has been approved by IEEE 802.16j as a standard to provide a highly data rate transmission, the RS was implemented to extend the coverage zone of the BS, for instance the MSs previously were out of the coverage of the BS they become in the coverage of the RS, therefore these MSs can have Admission control from the BS through the RS. This paper describe a problem in the mesh network Relay station, for instance the problem of how to serve the mobile stations (MSs) which are out of the Relay station coverage. This paper also proposed a solution for mobile stations out of the coverage of the WIMAX Relay stations mesh Network. Therefore Ad-hoc network defined as a solution by using its admission control schema and apply it on the mobiles inside and outside the Relay station coverage.
Keywords: WIMAX, relay station, mesh network, ad-hoc, WiFi, generic algorithm.
4299 Compatibility of Integrated Satellite Systems with Another Satellite System Operating in Adjacent Beam
Authors: Hyemi Gam, Dae-Sub Oh, Bon-Jun Ku
This paper addresses the analysis of the interference between complementary ground component (CGC) base station and mobile earth station (MES). In the frequency sharing scenario between CGC base station and MES, the interference from the adjacent beams must be considered. In this paper, we estimated the interference to MES of an integrated satellite system and the result is presented as the carrier to interference ratio(C/I) with respect to the number of CGC base station in the adjacent beam and the ratio of satellite beam center radius to the total beam radius (R1/R). By using these results, we can determine the minimum separation distance between the CGC base stations of adjacent beam and MES for compatibility. This result can be applied to the CGC base station of an integrated satellite system for the effective frequency sharing.
Keywords: Integrated satellite system, interference, frequency reuse pattern, CGC base station, MES, frequency sharing.
4298 A Quantification Method of Attractiveness of Stations and an Estimation Method of Number of Passengers Taking into Consideration the Attractiveness of the Station
Authors: Naoya Ozaki, Takuya Watanabe, Ryosuke Matsumoto, Noriko Fukasawa
In the metropolitan areas in Japan, in many stations, shopping areas are set up, and escalators and elevators are installed to make the stations be barrier-free. Further, many areas around the stations are being redeveloped. Railway business operators want to know how much effect these circumstances have on attractiveness of the station or number of passengers using the station. So, we performed a questionnaire survey of the station users in the metropolitan areas for finding factors to affect the attractiveness of stations. Then, based on the analysis of the survey, we developed a method to quantitatively evaluate attractiveness of the stations. We also developed an estimation method for number of passengers based on combination of attractiveness of the station quantitatively evaluated and the residential and labor population around the station. Then, we derived precise linear regression models estimating the attractiveness of the station and number of passengers of the station.
Keywords: Attractiveness of the station, estimation method, number of passengers of the station, redevelopment around the station, renovation of the station.
4297 Intelligent BRT in Tehran
Authors: P. Parvizi, S. Mohammadi
an intelligent BRT system is necessary when communities looking for new ways to use high capacity rapid transit at a reduced cost.This paper will describe the intelligent control system that works with Datacenter. With the help of GPS system, the data center can monitor the situation of each bus and bus station. Through RFID technology, bus station and traffic light can transfer data with bus and by Wimax communication technology all of parts can talk together; data center learns all information about the location of bus, the arrival of bus in each station and the number of passengers in station and bus.Finally, the paper presents the case study of those theories in Tehran BRT.
Keywords: TehranBRT, RFID, Intelligent Transportation
4296 Influence of IMV on Space Station
Authors: Fu Shiming, Pei Yifei
To study the impact of the inter-module ventilation (IMV) on the space station, the Computational Fluid Dynamic (CFD) model under the influence of IMV, the mathematical model, boundary conditions and calculation method are established and determined to analyze the influence of IMV on cabin air flow characteristics and velocity distribution firstly; and then an integrated overall thermal mathematical model of the space station is used to consider the impact of IMV on thermal management. The results show that: the IMV has a significant influence on the cabin air flow, the flowrate of IMV within a certain range can effectively improve the air velocity distribution in cabin, if too much may lead to its deterioration; IMV can affect the heat deployment of the different modules in space station, thus affecting its thermal management, the use of IMV can effectively maintain the temperature levels of the different modules and help the space station to dissipate the waste heat.
Keywords: CFD, Environment control and life support, Space station, Thermal management, Thermal mathematical model.
4295 Deployment of a Biocompatible International Space Station into Geostationary Orbit
Authors: Tim Falk, Chris Chatwin
This study explores the possibility of a space station that will occupy a geostationary equatorial orbit (GEO) and create artificial gravity using centripetal acceleration. The concept of the station is to create a habitable, safe environment that can increase the possibility of space tourism by reducing the wide variation of hazards associated with space exploration. The ability to control the intensity of artificial gravity through Hall-effect thrusters will allow experiments to be carried out at different levels of artificial gravity. A feasible prototype model was built to convey the concept and to enable cost estimation. The SpaceX Falcon Heavy rocket with a 26,700 kg payload to GEO was selected to take the 675 tonne spacecraft into orbit; space station construction will require up to 30 launches, this would be reduced to 5 launches when the SpaceX BFR becomes available. The estimated total cost of implementing the Sussex Biocompatible International Space Station (BISS) is approximately $47.039 billion, which is very attractive when compared to the cost of the International Space Station, which cost $150 billion.
Keywords: Artificial gravity, biocompatible, geostationary orbit, space station.
4294 Research on the Layout of Ground Control Points in Plain area 1:10000 DLG Production Using POS Technique
Authors: Dong Ming, Chen Haipeng
POS (also been called DGPS/IMU) technique can obtain the Exterior Orientation Elements of aerial photo, so the triangulation and DLG production using POS can save large numbers of ground control points (GCP), and this will improve the produce efficiency of DLG and reduce the cost of collecting GCP. This paper mainly research on POS technique in production of 1:10 000 scale DLG on GCP distribution. We designed 23 kinds of ground control points distribution schemes, using integrated sensor direction method to do the triangulation experiments, based on the results of triangulation, we produce a map with the scale of 1:10 000 and test its accuracy. This paper put forward appropriate GCP distributing schemes by experiments and research above, and made preparations for the application of POS technique on photogrammetry 4D data production.
Keywords: POS, IMU, DGPS, DLG, ground control point, triangulation
4293 The First Ground Track Maintenance Manoeuvre of THEOS Spacecraft
Authors: Pornthep Navakitkanok, Ammarin Pimnoo, Seksan Jaturat
THEOS is the first earth observation spacecraft of Thailand which was launched on the 1st October 2008 and is currently operated by GISTDA. The transfer phase has been performed by Astrium Flight Dynamics team leading to a hand over to GISTDA teams starting mid-October 2008. The THEOS spacecraft-s orbit is LEO and has the same repetitivity (14+5/26) as the SPOT spacecraft, i.e. the same altitude of 822 km but it has a different mean local solar time (LST). Ground track maintenance manoeuvres are performed to maintain the ground track within a predefined control band around the reference ground track and the band is ±40 km for THEOS spacecraft. This paper presents the first ground track maintenance manoeuvre of THEOS spacecraft and the detailed results. In addition, it also includes one and a half year of operation as seen by GISTDA operators. It finally describes the foreseenable activities for the next orbit control manoeuvre (OCM) preparation.
Keywords: Orbit Control Manoeuvre, Ground Track Error, Local Solar Time Error, LEO, THEOS
4292 Assessment of Physicochemical Characteristics and Heavy Metals Concentration in Freshwater from Jega River, Kebbi State, Nigeria
Authors: D. Y. Bawa, M. I. Ribah, I. S. Jega, V. O. Oyedepo
This study was conducted to determine the physicochemical characteristics and heavy metal concentration (Cadmium (Cd), Copper (Cu), Iron (Fe), Lead (Pb) and Zinc (Zn)) in freshwater from Jega river. 30 water samples were collected in two 1-liter sterile plastic containers from three designated sampling points, namely; Station A (before the bridge; upstream), Station B (at the bridge where human activities such as washing of cars, motorbike, clothes, bathing and other household materials are concentrated), Station C (after the bridge; downstream) fortnightly, between March and July 2014. Results indicated that the highest pH mean value of 7.08 ± 1.12 was observed in station C, the highest conductivity with the mean 58.75 ± 7.87 µs/cm was observed at station A, the highest mean value of the water total hardness was observed at station A (54 ± 16.11 mg/L), the highest mean value of nitrate deposit was observed in station A (1.66 ± 1.33 mg/L), the highest mean value of alkalinity was observed at station B (51.33 ± 6.66 mg/L) and the highest mean (39.56 ± 3.24 mg/L) of total dissolved solids was observed at station A. The highest concentration mean value of Fe was observed in station C (65.33 ± 4.50 mg/L), the highest concentrations of Cd was observed in station C (0.99 ± 0.36 mg/L), the mean value of 2.13 ± 1.99 mg/L was the highest concentration of Zn observed in station B, the concentration of Pb was not detected (ND) and the highest concentration of Cu with the mean value of 0.43 ± 0.16 mg/L was observed in station B, while the lowest concentration was observed at station C (0.27 ± 0.26 mg/L). Statistical analysis shows no significant difference (P > 0.05) among the sampling stations for both the physicochemical characteristics and heavy metal concentrations. The results were found to be within the internationally acceptable standard limits.
Keywords: Assessment, freshwater, heavy metal concentration, physicochemical.
4291 Performance of On-site Earthquake Early Warning Systems for Different Sensor Locations
Authors: Ting-Yu Hsu, Shyu-Yu Wu, Shieh-Kung Huang, Hung-Wei Chiang, Kung-Chun Lu, Pei-Yang Lin, Kuo-Liang Wen
Regional earthquake early warning (EEW) systems are not suitable for Taiwan, as most destructive seismic hazards arise due to in-land earthquakes. These likely cause the lead-time provided by regional EEW systems before a destructive earthquake wave arrives to become null. On the other hand, an on-site EEW system can provide more lead-time at a region closer to an epicenter, since only seismic information of the target site is required. Instead of leveraging the information of several stations, the on-site system extracts some P-wave features from the first few seconds of vertical ground acceleration of a single station and performs a prediction of the oncoming earthquake intensity at the same station according to these features. Since seismometers could be triggered by non-earthquake events such as a passing of a truck or other human activities, to reduce the likelihood of false alarms, a seismometer was installed at three different locations on the same site and the performance of the EEW system for these three sensor locations were discussed. The results show that the location on the ground of the first floor of a school building maybe a good choice, since the false alarms could be reduced and the cost for installation and maintenance is the lowest.
Keywords: Earthquake early warning, Single station approach, Seismometer location.
4290 Assessing the Problems of Pumping Stations: A Case Study of Boneh Basht Pumping Station
Authors: Emad Hazbkhah, Abdolreza Zahiri, Hossein Ghorbanizade Kharazi, Afshin Kiani
Establishing pumping stations is one of the most common ways of providing water from rivers. There are many issues involved in the design and operation of pumping stations most important of which is the problem of sedimentation. One of the significant issues which must be taken into consideration in designing pumping stations is the operation method and technical matters related to it. Safety and convenience of operation is one of the issues that must be always considered by the designer. Some of the major issues in making decisions regarding the type of design for the station are geographical condition, the location of the station and availability of experts in maintenance and operation of the station. Dimensions of the station must allow free movement for checking and operating pumps after installation of pumps and plumbing system.
Keywords: Boneh Basht, Iran, pumping station.
4289 Optimal Trajectory Finding of IDP Ventilation Control with Outdoor Air Information and Indoor Health Risk Index
Authors: Minjeong Kim, Seungchul Lee, Iman Janghorban Esfahani, Jeong Tai Kim, Chang Kyoo Yoo
This study was carried out for an underground subway station at Seoul Metro, Korea. The optimal set-points of the ventilation control system are determined every 3 hours, then, the ventilation controller adjusts the ventilation fan speed according to the optimal set-point changes. Compared to manual ventilation system which is operated irrespective of the OAQ, the IDP-based ventilation control system saves 3.7% of the energy consumption. Compared to the fixed set-point controller which is operated irrespective of the IAQ diurnal variation, the IDP-based controller shows better performance with a 2% decrease in energy consumption, maintaining the comfortable IAQ range inside the station.
Keywords: Indoor air quality, iterative dynamic algorithm, outdoor air information, ventilation control system.
4288 Earth Station Neural Network Control Methodology and Simulation
Authors: Hanaa T. El-Madany, Faten H. Fahmy, Ninet M. A. El-Rahman, Hassen T. Dorrah
Renewable energy resources are inexhaustible, clean as compared with conventional resources. Also, it is used to supply regions with no grid, no telephone lines, and often with difficult accessibility by common transport. Satellite earth stations which located in remote areas are the most important application of renewable energy. Neural control is a branch of the general field of intelligent control, which is based on the concept of artificial intelligence. This paper presents the mathematical modeling of satellite earth station power system which is required for simulating the system.Aswan is selected to be the site under consideration because it is a rich region with solar energy. The complete power system is simulated using MATLAB–SIMULINK.An artificial neural network (ANN) based model has been developed for the optimum operation of earth station power system. An ANN is trained using a back propagation with Levenberg–Marquardt algorithm. The best validation performance is obtained for minimum mean square error. The regression between the network output and the corresponding target is equal to 96% which means a high accuracy. Neural network controller architecture gives satisfactory results with small number of neurons, hence better in terms of memory and time are required for NNC implementation. The results indicate that the proposed control unit using ANN can be successfully used for controlling the satellite earth station power system.
Keywords: Satellite, neural network, MATLAB, power system.
4287 Thermal Properties of the Ground in Cyprus and Their Correlations and Effect on the Efficiency of Ground Heat Exchangers
Authors: G. A. Florides, E. Theofanous, I. Iosif-Stylianou, P. Christodoulides, S. Kalogirou, V. Messarites, Z. Zomeni, E. Tsiolakis, P. D. Pouloupatis, G. P. Panayiotou
Ground Coupled Heat Pumps (GCHPs) exploit effectively the heat capacity of the ground, with the use of Ground Heat Exchangers (GHE). Depending on the mode of operation of the GCHPs, GHEs dissipate or absorb heat from the ground. For sizing the GHE the thermal properties of the ground need to be known. This paper gives information about the density, thermal conductivity, specific heat and thermal diffusivity of various lithologies encountered in Cyprus with various relations between these properties being examined through comparison and modeling. The results show that the most important correlation is the one encountered between thermal conductivity and thermal diffusivity with both properties showing similar response to the inlet and outlet flow temperature of vertical and horizontal heat exchangers.
Keywords: Ground heat exchangers, ground thermal conductivity, ground thermal diffusivity, ground thermal properties.
4286 Land Use around Metro Stations: A Case Study
Authors: A. Roukouni, S. Basbas, M. Giannopoulou
Transport and land use are two systems that are mutually influenced. Their interaction is a complex process associated with continuous feedback. The paper examines the existing land use around an under construction metro station of the new metro network of Thessaloniki, Greece, through the use of field investigations, around the station-s predefined location. Moreover, except from the analytical land use recording, a sampling questionnaire survey is addressed to several selected enterprises of the study area. The survey aims to specify the characteristics of the enterprises, the trip patterns of their employees and clients, as well as the stated preferences towards the changes the new metro station is considered to bring to the area. The interpretation of the interrelationships among selected data from the questionnaire survey takes place using the method of Principal Components Analysis for Categorical Data. The followed methodology and the survey-s results contribute to the enrichment of the relevant bibliography concerning the way the creation of a new metro station can have an impact on the land use pattern of an area, by examining the situation before the operation of the station.
Keywords: land use, metro station, questionnaire survey
4285 Classification of Extreme Ground-Level Ozone Based on Generalized Extreme Value Model for Air Monitoring Station
Authors: Siti Aisyah Zakaria, Nor Azrita Mohd Amin, Noor Fadhilah Ahmad Radi, Nasrul Hamidin
Higher ground-level ozone (GLO) concentration adversely affects human health, vegetations as well as activities in the ecosystem. In Malaysia, most of the analysis on GLO concentration are carried out using the average value of GLO concentration, which refers to the centre of distribution to make a prediction or estimation. However, analysis which focuses on the higher value or extreme value in GLO concentration is rarely explored. Hence, the objective of this study is to classify the tail behaviour of GLO using generalized extreme value (GEV) distribution estimation the return level using the corresponding modelling (Gumbel, Weibull, and Frechet) of GEV distribution. The results show that Weibull distribution which is also known as short tail distribution and considered as having less extreme behaviour is the best-fitted distribution for four selected air monitoring stations in Peninsular Malaysia, namely Larkin, Pelabuhan Kelang, Shah Alam, and Tanjung Malim; while Gumbel distribution which is considered as a medium tail distribution is the best-fitted distribution for Nilai station. The return level of GLO concentration in Shah Alam station is comparatively higher than other stations. Overall, return levels increase with increasing return periods but the increment depends on the type of the tail of GEV distribution's tail. We conduct this study by using maximum likelihood estimation (MLE) method to estimate the parameters at four selected stations in Peninsular Malaysia. Next, the validation for the fitted block maxima series to GEV distribution is performed using probability plot, quantile plot and likelihood ratio test. Profile likelihood confidence interval is tested to verify the type of GEV distribution. These results are important as a guide for early notification on future extreme ozone events.
Keywords: Extreme value theory, generalized extreme value distribution, ground-level ozone, return level.
4284 Configuration and the Calculation of Link Budget for a Connection via a Geostationary Satellite for Multimedia Application in the Ka Band
Authors: M. A. Mebrek, L.H.Abderrahmane, A. Himeur, S. Bendoukha
In this article, we are going to do a study that consist in the configuration of a link between an earth station to broadcast multimedia service and a user of this service via a geostationary satellite in Ka- band and the set up of the different components of this link and then to make the calculation of the link budget for this system. The application carried out in this work, allows us to calculate the link budget in both directions: the uplink and downlink, as well as all parameters used in the calculation and the development of a link budget. Finally, we will try to verify using the application developed the feasibility of implementation of this system.
Keywords: Geostationary satellite, ground station, ka band, link budget, telecommunication.
4283 Comparisons of Surveying with Terrestrial Laser Scanner and Total Station for Volume Determination of Overburden and Coal Excavations in Large Open-Pit Mine
Authors: B. Keawaram, P. Dumrongchai
The volume of overburden and coal excavations in open-pit mine is generally determined by conventional survey such as total station. This study aimed to evaluate the accuracy of terrestrial laser scanner (TLS) used to measure overburden and coal excavations, and to compare TLS survey data sets with the data of the total station. Results revealed that, the reference points measured with the total station showed 0.2 mm precision for both horizontal and vertical coordinates. When using TLS on the same points, the standard deviations of 4.93 cm and 0.53 cm for horizontal and vertical coordinates, respectively, were achieved. For volume measurements covering the mining areas of 79,844 m2, TLS yielded the mean difference of about 1% and the surface error margin of 6 cm at the 95% confidence level when compared to the volume obtained by total station.
Keywords: Mine, survey, terrestrial laser scanner, total station.
4282 A Real-Time Simulation Environment for Avionics Software Development and Qualification
Authors: U. Tancredi, D. Accardo, M. Grassi, G. Fasano, A. E. Tirri, A. Vitale, N. Genito, F. Montemari, L. Garbarino
The development of guidance, navigation and control algorithms and avionic procedures requires the disposability of suitable analysis and verification tools, such as simulation environments, which support the design process and allow detecting potential problems prior to the flight test, in order to make new technologies available at reduced cost, time and risk. This paper presents a simulation environment for avionic software development and qualification, especially aimed at equipment for general aviation aircrafts and unmanned aerial systems. The simulation environment includes models for short and medium-range radio-navigation aids, flight assistance systems, and ground control stations. All the software modules are able to simulate the modeled systems both in fast-time and real-time tests, and were implemented following component oriented modeling techniques and requirement based approach. The paper describes the specific models features, the architectures of the implemented software systems and its validation process. Performed validation tests highlighted the capability of the simulation environment to guarantee in real-time the required functionalities and performance of the simulated avionics systems, as well as to reproduce the interaction between these systems, thus permitting a realistic and reliable simulation of a complete mission scenario.
Keywords: ADS-B, avionics, NAVAIDs, real time simulation, TCAS, UAS ground control station.
4281 Hybrid System Configurations and Charging Strategies for Isolated Electric Tuk-Tuk Charging Station in South Africa
Authors: L. Bokopane, K. Kusakana, H. J. Vermaark
The success of renewable powered electric vehicle charging station in isolated areas depends highly on the availability and sustainability of renewable resources all year round at a selected location. The main focus of this paper is to discuss the possible charging strategies that could be implemented to find the best possible configuration of an electric Tuk-Tuk charging station at a given location within South Africa. The charging station is designed, modeled and simulated to evaluate its performances. The technoeconomic analysis of different feasible supply configurations of the charging station using renewable energies is simulated using HOMER software and the results compared in order to select the best possible charging strategies in terms of cost of energy consumed.
Keywords: Electric Tuk-Tuk, Renewable energy, Energy Storage, Hybrid systems, HOMER.
4280 A Study of Flow and Sedimentation at the Basins of Khoozestan Province Rivers: A Case Study of Boneh Basht Pumping Station
Authors: Emad Hazbkhah. Abdolreza zahiri, Hossein ghorbanizade kharazi
The present paper is a case study about exploitation of Kheir Abad river (Khoozestan, Iran) water resources and the problems caused by river sediments around the pumping stations. The weak points and strong points of Boneh Basht pumping station have been studied by experienced experts, work teams, and consulting engineers and technical and executive solutions have been suggested. Therefore, the suggestions of this article are based on the performed studies and are proposed in order to evaluate the logical solutions. Rather complicated processes resulting from the interaction of water flows and sediments observed at Boneh Basht pumping station occur at other pumping stations in almost the same way. Therefore, Boneh Basht pumping station can be selected as a sample (pilot) and up-to-date theories and experiences can be applied to this station and the results can be offered to other stations.
Keywords: Boneh Basht , Iran , Pumping Station, Sedimentation
4279 Experimental Analysis of Control in Electric Vehicle Charging Station Based Grid Tied Photovoltaic-Battery System
Authors: A. Hassoune, M. Khafallah, A. Mesbahi, T. Bouragba
This work presents an improved strategy of control for charging a lithium-ion battery in an electric vehicle charging station using two charger topologies i.e. single ended primary inductor converter (SEPIC) and forward converter. In terms of rapidity and accuracy, the power system consists of a topology/control diagram that would overcome the performance constraints, for instance the power instability, the battery overloading and how the energy conversion blocks would react efficiently to any kind of perturbations. Simulation results show the effectiveness of the proposed topologies operated with a power management algorithm based on voltage/peak current mode controls. In order to provide credible findings, a low power prototype is developed to test the control strategy via experimental evaluations of the converter topology and its controls.
Keywords: Battery charger, forward converter, lithium-ion, management algorithm, SEPIC.
4278 Ground System Software for Unmanned Aerial Vehicles on Android Device
Authors: Thach D. Do, Juhum Kwon, Chang-Joo Moon
A Ground Control System (GCS), which controls Unmanned Aerial Vehicles (UAVs) and monitors their missionrelated data, is one of the major components of UAVs. In fact, some traditional GCSs were built on an expensive, complicated hardware infrastructure with workstations and PCs. In contrast, a GCS on a portable device – such as an Android phone or tablet – takes advantage of its light-weight hardware and the rich User Interface supported by the Android Operating System. We implemented that kind of GCS and called it Ground System Software (GSS) in this paper. In operation, our GSS communicates with UAVs or other GSS via TCP/IP connection to get mission-related data, visualizes it on the device-s screen, and saves the data in its own database. Our study showed that this kind of system will become a potential instrument in UAV-related systems and this kind of topic will appear in many research studies in the near future.
Keywords: Android Operating System, Ground Control System, Mobile Device, Unmanned Aerial Vehicle.
4277 A Two-Stage Airport Ground Movement Speed Profile Design Methodology Using Particle Swarm Optimization
Authors: Zhang Tianci, Ding Meng, Zuo Hongfu, Zeng Lina, Sun Zejun
Automation of airport operations can greatly improve ground movement efficiency. In this paper, we study the speed profile design problem for advanced airport ground movement control and guidance. The problem is constrained by the surface four-dimensional trajectory generated in taxi planning. A decomposed approach of two stages is presented to solve this problem efficiently. In the first stage, speeds are allocated at control points, which ensure smooth speed profiles can be found later. In the second stage, detailed speed profiles of each taxi interval are generated according to the allocated control point speeds with the objective of minimizing the overall fuel consumption. We present a swarm intelligence based algorithm for the first-stage problem and a discrete variable driven enumeration method for the second-stage problem, since it only has a small set of discrete variables. Experimental results demonstrate the presented methodology performs well on real world speed profile design problems.
Keywords: Airport ground movement, fuel consumption, particle swarm optimization, smoothness, speed profile design.
4276 Automation System for Optimization of Electrical and Thermal Energy Production in Cogenerative Gas Power Plants
Authors: Ion Miciu
The system is made with main distributed components: First Level: Industrial Computers placed in Control Room (monitors thermal and electrical processes based on the data provided by the second level); Second Level: PLCs which collects data from process and transmits information on the first level; also takes commands from this level which are further, passed to execution elements from third level; Third Level: field elements consisting in 3 categories: data collecting elements; data transfer elements from the third level to the second; execution elements which take commands from the second level PLCs and executes them after which transmits the confirmation of execution to them. The purpose of the automatic functioning is the optimization of the co-generative electrical energy commissioning in the national energy system and the commissioning of thermal energy to the consumers. The integrated system treats the functioning of all the equipments and devices as a whole: Gas Turbine Units (GTU); MT 20kV Medium Voltage Station (MVS); 0,4 kV Low Voltage Station (LVS); Main Hot Water Boilers (MHW); Auxiliary Hot Water Boilers (AHW); Gas Compressor Unit (GCU); Thermal Agent Circulation Pumping Unit (TPU); Water Treating Station (WTS).
Keywords: Automation System, Cogenerative Power Plant, Control, Monitoring, Real Time
4275 Detection of Actuator Faults for an Attitude Control System using Neural Network
Authors: S. Montenegro, W. Hu
The objective of this paper is to develop a neural network-based residual generator to detect the fault in the actuators for a specific communication satellite in its attitude control system (ACS). First, a dynamic multilayer perceptron network with dynamic neurons is used, those neurons correspond a second order linear Infinite Impulse Response (IIR) filter and a nonlinear activation function with adjustable parameters. Second, the parameters from the network are adjusted to minimize a performance index specified by the output estimated error, with the given input-output data collected from the specific ACS. Then, the proposed dynamic neural network is trained and applied for detecting the faults injected to the wheel, which is the main actuator in the normal mode for the communication satellite. Then the performance and capabilities of the proposed network were tested and compared with a conventional model-based observer residual, showing the differences between these two methods, and indicating the benefit of the proposed algorithm to know the real status of the momentum wheel. Finally, the application of the methods in a satellite ground station is discussed.
Keywords: Satellite, Attitude Control, Momentum Wheel, Neural Network, Fault Detection.
4274 An Impairment Sensitive and Reliable SR-ARQ Mechanism for Unreliable Feedback in GPRS
Authors: Mansab Ali, Muhammad Khalid Khan
The advances in wireless communication have opened unlimited horizons but there are some challenges as well. The Nature derived air medium between MS (Mobile Station) and BS (Base Station) is beyond human control and produces channel impairment. The impact of the natural conditions at the air medium is the biggest issue in wireless communication. Natural conditions make reliability more cumbersome; here reliability refers to the efficient recovery of the lost or erroneous data. The SR-ARQ (Selective Repeat-Automatic Repeat Request) protocol is a de facto standard for any wireless technology at the air interface with its standard reliability features. Our focus in this research is on the reliability of the control or feedback signal of the SR-ARQ protocol. The proposed mechanism, RSR-ARQ (Reliable SR-ARQ) is an enhancement of the SR-ARQ protocol that has ensured the reliability of the control signals through channel impairment sensitive mechanism. We have modeled the system under two-state discrete time Markov Channel. The simulation results demonstrate the better recovery of the lost or erroneous data that will increase the overall system performance.
Keywords: ISR-ARQ, MAA, RSR-ARQ, SAA.
4273 Health Risk Assessment of Heavy Metals in Clarias gariepinus (Burchell, 1822) from Fish Mongers within Akure Metropolis, Ondo State, Nigeria
Authors: O. O. Olawusi-Peters, K. I. Adejugbagbe
The concentration of heavy metal (Cd, Pb, Fe, Zn, Cu) in Clarias gariepinus collected from fish markets; Fanibi (Station I) and Fiwasaye (Station II) in Akure metropolis, Ondo state, Nigeria were investigated to ascertain the safety for the consumers. 60 samples were collected from the two markets in three batches (I, II, III) for a period of six months and analyzed for heavy metals in the gills and muscles of the fish. Also, the Health Risk Index (HRI) was used to determine the health risk of these metals to the consumer. The results showed that the investigated metal concentration was higher in station I than station II, except Pb having higher concentration in station II than station I. In both stations, the highest concentration of Fe was recorded in the gills (12.60 ± 1.51; 6.94 ± 1.38) and muscles (3.72 ± 0.09; 3.86 ± 0.33) of samples in batch I. Also, the HRI revealed that consumption of Clarias gariepinus from these study areas did not pose any health risk (HRI < 1). In addition, concentrations of the heavy metals were all below the permissible limits recommended by FAO/WHO.
Keywords: Health risk index, heavy metals, Clarias gariepinus, Akure metropolis, fish monger.
4272 Pollution and Water Quality of the Beshar River
Authors: Fardin Boustani , Mohammah Hosein Hojati
The Beshar River is one aquatic ecosystem,which is affected by pollutants. This study was conducted to evaluate the effects of human activities on the water quality of the Beshar river. This river is approximately 190 km in length and situated at the geographical positions of 51° 20' to 51° 48' E and 30° 18' to 30° 52' N it is one of the most important aquatic ecosystems of Kohkiloye and Boyerahmad province next to the city of Yasuj in southern Iran. The Beshar river has been contaminated by industrial, agricultural and other activities in this region such as factories, hospitals, agricultural farms, urban surface runoff and effluent of wastewater treatment plants. In order to evaluate the effects of these pollutants on the quality of the Beshar river, five monitoring stations were selected along its course. The first station is located upstream of Yasuj near the Dehnow village; stations 2 to 4 are located east, south and west of city; and the 5th station is located downstream of Yasuj. Several water quality parameters were sampled. These include pH, dissolved oxygen, biological oxygen demand (BOD), temperature, conductivity, turbidity, total dissolved solids and discharge or flow measurements. Water samples from the five stations were collected and analysed to determine the following physicochemical parameters: EC, pH, T.D.S, T.H, No2, DO, BOD5, COD during 2008 to 2009. The study shows that the BOD5 value of station 1 is at a minimum (1.5 ppm) and increases downstream from stations 2 to 4 to a maximum (7.2 ppm), and then decreases at station 5. The DO values of station 1 is a maximum (9.55 ppm), decreases downstream to stations 2 - 4 which are at a minimum (3.4 ppm), before increasing at station 5. The amount of BOD and TDS are highest at the 4th station and the amount of DO is lowest at this station, marking the 4th station as more highly polluted than the other stations. The physicochemical parameters improve at the 5th station due to pollutant degradation and dilution. Finally the point and nonpoint pollutant sources of Beshar river were determined and compared to the monitoring results.
Keywords: Beshar river, physicochemical parameter, waterpollution, Yasuj
4271 Simulation Modeling of Fire Station Locations under Traffic Obstacles
Authors: Mehmet Savsar
Facility location problem involves locating a facility to optimize some performance measures. Location of a public facility to serve the community, such as a fire station, significantly affects its service quality. Main objective in locating a fire station is to minimize the response time, which is the time duration between receiving a call and reaching the place of incident. In metropolitan areas, fire vehicles need to cross highways and other traffic obstacles through some obstacle-overcoming points which delay the response time. In this paper, fire station location problem is analyzed. Simulation models are developed for the location problems which involve obstacles. Particular case problems are analyzed and the results are presented.
Keywords: Public Facility Location, Fire Stations, Response Time, Fire Vehicle Delays.


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Arctic Ground Squirrel Studies 2014
Journal Map
Journal Timeline
What Are They Doing?
Arctic Ground Squirrel
In the Arctic, bright summers and dark winters are a fact of life and can lead humans to rely on clocks and routines to tell them when to eat or sleep, but how do animals function under these conditions? Circadian rhythms refer to the "internal body clock" that regulates the approximately 24-hour cycle of biological processes in animals and plants. Rhythms in body temperature, brain wave activity, hormone production, and other biological activities are linked to this 24-hour cycle. The Earth's light-dark cycle provides the strongest influence on circadian rhythms and is thought to be the primary driver for the emergence and evolution of internal clocks. In the Polar Regions, however, photoperiod exhibits extreme annual variation because of near 24 hour sunlight in the summer and 24 hour darkness in the winter. In the absence of a well-defined light-dark cycle, some arctic residents lose their daily organization of behavior and physiology, and it is thought that the molecular clockwork that drives circadian rhythms may be weak or absent in arctic vertebrates.
The research team has recently found that the arctic ground squirrel displays daily rhythms of body temperature throughout the arctic summer, in the absence of a light-dark cycle. The current study will investigate the circadian rhythms in arctic ground squirrels during the continuous daylight present during the active summer season and continuous dark of the 6-8 months of hibernation spent sequestered in a burrow. The team wants to understand why arctic ground squirrels, unlike other arctic vertebrates, appear to maintain 24-hour rhythms during the active season. They hypothesize that the persistence of circadian rhythmicity allows ground squirrels to reduce energy expenditure by anticipating predictable changes in its immediate surroundings. They are testing their hypothesis by experimentally phase-shifting free-living ground squirrels to be active at 'night' and estimating their subsequent rates of energy expenditure.
Squirrel traps on the tundra at Toolik Lake, Alaska
From Fairbanks, Alaska the team embarked on an eight hour drive to Toolik Field Station, located in the northern foothills of the Brooks Range in northern Alaska. Toolik Field Station is operated by the Institute of Arctic Biology at the University of Alaska Fairbanks and has hosted hundreds of researchers and students every year since 1975. The team's research sites around the Toolik Lake area were accessed by pick-up truck or on foot.
24 July 2014 Carnage on the tundra.
After climbing Colorado's 14,003 foot tall Mount Huron, I stumbled upon a surprising natural interaction between a Marmot and a songbird known as the Water Pipit. I am going to call it a crime scene, because of the heinous nature of the act that was committed by the marmot, and the extreme distress…
Read Journal 4
30 June 2014 PolarTrec Reflections
I have been home now for about a week since my "polar to solar" travels from the North Slope of Alaska, to the tropics of Hawaii. What an incredible journey! Experiences like this can have a profound effect on people, and I am sure this is the case in my situation. The PolarTrec experience took…
28 June 2014 Extremophilia
Part of my attraction to the PolarTrec program is that anything that can survive in polar regions has to be incredibly well adapted to a challenging environment. Plants and animals that can tolerate such extremes could be considered "extremophiles". They thrive or at least survive in the world's…
27 June 2014 Changes in Latitude, changes in Attitude
After a long winter at home, then a month in the Alaskan Arctic, I felt a need for some time with my wife Julie and the tropics. Time for "Polar to Solar" v2.0; Destination, the Big Island of Hawaii. What better way to make up for missed summer than a visit to the beach. To melt some of the…
26 May 2014 - 19 June 2014
Toolik Field Station, Alaska
Project Funded Title
Collaborative Research: Persistence, entrainment, and function of circadian rhythms in arctic ground squirrels
Related Expeditions
Arctic Ground Squirrel Studies
Expedition Map
-- Select -- 10 February 2014 Fairbanks in 11 February 2014 Winter Wildli 11 February 2014 Arctic Ground 13 February 2014 Musk Oxen 13 February 2014 Hot Springs a 14 February 2014 Permafrost Tu 25 March 2014 A taste of the a 12 April 2014 Polar to Solar E 11 May 2014 The Phenology of S 27 May 2014 The Journey North 29 May 2014 Squirrel baiting 29 May 2014 Chasing Squirrels 30 May 2014 Extreme conditions 31 May 2014 Circadian rhythms 2 June 2014 Phase-Shifting the 9 June 2014 Arctic snowstorm c 10 June 2014 Journey to the en 12 June 2014 Strange Behavior 13 June 2014 Experiential Lear 15 June 2014 Data Down Load 15 June 2014 Ground Squirrel B 16 June 2014 Toolik Lake Memor 17 June 2014 The Birds of Tool 17 June 2014 In the Field with 18 June 2014 Midnight Outings 19 June 2014 Squirrel Release 20 June 2014 Mosquito Heaven o 21 June 2014 The Long Migratio 27 June 2014 Changes in Latitu 28 June 2014 Extremophilia 30 June 2014 PolarTrec Reflect 24 July 2014 Carnage on the tu
Andre Wille - Teacher
Aspen High School
Mr. Wille is a veteran science teacher at Aspen High School in Colorado. Andre teaches all levels of biology, as well as chemistry and integrated science. Andre actively utilizes the "outdoor classroom" to make scientific learning relevant. His students are involved in independent research and citizen science projects near the high school. Andre also leads a variety of outdoor education trips including a week long "Polar to Solar" ski mountaineering and desert canyoneering course. Andre's research interests include aquatic ecology, adaptation to extreme environments, and ornithology. When not teaching, Andre enjoys time in the outdoors with his wife Julie and daughters Anna and Sara.
Cory Williams - Researcher
Cory Williams is currently a research assistant professor at Northern Arizona University. His research examines the physiological and behavioral mechanisms that allow animals to cope with environmental change. Specifically, he is interested in the functional and ecological significance of circadian rhythms in arctic vertebrates and the factors underlying plasticity in the timing of annually recurring life-cycle events. Ultimately, the capacity of polar animals to adjust their timing in response to changing environmental conditions, either through phenotypic plasticity or microevolution, will be an important determinant of their resilience to climate change.
Arctic Ground Squirrel Studies 2014 Resources
Arctic Ground Squirrel Activity Data-Based Question
In this activity, students will use IB-style data-based questions centered around graphs made from data collected about arctic ground squirrels by researchers at Toolik Field Station in northern Alaska. Activity levels of ground squirrels are analyzed in relation to solar radiation and ambient temperature. Students work individually or in pairs to answer the questions.
Students will practice
Less than 1 period
High school and Up
Arctic Ground Squirrels Data Analysis
In this activity, students will use data collected about two male arctic ground squirrels by researchers at Toolik Field Station in northern Alaska. Each squirrel had a lightlogger to record light intensity (lux) and an implanted data logger to record internal body temperature (°C). Students work individually or in pairs to analyze the data sets and interpret the results
About 1 period
Data Analysis with Team Squirrel Using Google Sheets

Students in cooperative teams will use a spreadsheet and graphing program such as Google Sheets or Microsoft Excel to graph and evaluate a large data set. The data sets provided come from authentic arctic ground squirrel research completed at Toolik Research station in arctic Alaska. The data sets were downloaded from body temperature loggers implanted into individual animals
Data Analysis with Team Squirrel Using Excel
STEM Experience Report - Andre Wille
The report is written by teacher participants upon return from their field expedition portion of the PolarTREC program. It summarizes the benefit of the expedition to the teacher, a description of activities, and a summary of how teachers plan to link this experience in classrooms and communities. This is a public document that will be posted in teacher portfolios and
2014 Arctic Expedition Wrap-Up
This one hour webinar is a great look at the PolarTREC 2014 Arctic expeditions. Each teacher presents a little about the research projects, implementation in the classroom, and outreach into communities.
Andre Wille and the Arctic Ground Squirrel Studies 2014 Expedition
This is a one hour webinar hosted by PolarTREC teacher Andre Wille at Toolik Field Station, Alaska. The work presented is part of the Arctic Ground Squirrel Study 2014.

redpajama_set_name: RedPajamaCommonCrawl


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Q: Determining if Series involving Complex Numbers Converges To start off, I'm very new to the complex plane and complex numbers.
I'm trying to determine if the series $\sum_{n=1}^\infty\frac{1}{n^2 + i}$ is convergent or divergent.
However, I'm not exactly sure how to express the value of the function. Could I just treat the denominator of the expression as the complex number's modulus and ignore the rotation in the plane? If I do that, I could determine that the series is convergent via a direct comparison test.
Geometrically speaking, it doesn't seem like a rotation would affect the convergence of a series. However, I don't know if I can consider the modulus of the complex number to be equivalent to its "value", and this is the cause of my confusion.

A: $$\left|\frac{1}{n^2+i}\right| = \frac{1}{\sqrt{n^4+1}} < \frac{1}{\sqrt{n^4}} = \frac{1}{n^2};$$
thus, by the comparison test and $p$-test (with $p=2$) the series converges absolutely.

A: When in doubt, you can always decompose it to the real and imaginary part:
$$\frac{1}{n^2 + i} = \frac{n^2-i}{n^4+ 1} = \frac{n^2}{n^4+1}-i\cdot\frac{1}{n^2}$$
Both the real and imaginary parts converge:
$$\sum_{n=1}^\infty\frac{n^2}{n^4+1} \le \sum_{n=1}^\infty\frac{n^2}{n^4} = \sum_{n=1}^\infty\frac{1}{n^2} = \frac{\pi^2}{6}< +\infty$$
$$\sum_{n=1}^\infty\frac{-i}{n^2} = -i\sum_{n=1}^\infty\frac1{n^2} = -\frac{i\pi^2}{6}$$
So in particular, $$\sum_{n=1}^\infty \frac{1}{n^2+i} = \sum_{n=1}^\infty\frac{n^2}{n^4+1} + \sum_{n=1}^\infty\frac{-i}{n^2}$$ also converges as a sum of two convergent series.

redpajama_set_name: RedPajamaStackExchange


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Can parents still share custody during the pandemic?
Is it safe to keep co-parenting during coronavirus?
Illustrated | iStock
byClaire Gillespie
Three months ago, my ex-husband and I had a (particularly ridiculous, with hindsight) fallout over our children's socks. Yes, socks. I buy them, he loses them. I was sick of sending our kids to him in matching pairs and then getting them back in mismatched ones, or without any socks at all. I nearly accused him of stockpiling socks under his bed as some sort of delayed revenge for me ending our relationship, but I resisted. What can I say — co-parenting with an ex can drive you to some crazy thoughts.
Of course, with the coronavirus pandemic raging, socks are the least of my worries right now. What matters to me most is keeping my kids healthy — physically, mentally, and emotionally. Which is why, in the face of enormous uncertainty and widespread confusion and fear, my ex and I have decided to continue with our existing co-parenting plan: The children spend four nights a week with me and three with their dad. This might seem to COVID-19 purists to be a breach of strict stay-at-home orders, but many experts (and fellow parents) agree that for kids already splitting their time between parents, sticking with the co-parenting schedule is the right thing to do.
"Keeping your parenting schedule at this time is critical," says licensed clinical psychologist and parenting evaluator Melanie English, Ph.D. "Routine and structure with school, friends, sports, and extracurricular activities has been halted. ... Children need the consistency and that will help them feel like part of their world is still safe and in control."
One crucial qualifier in our coronavirus co-parenting arrangement: It is subject to change if any of us developed COVID-19 symptoms. So if I were to get sick while the kids were with me, for example, we'd all isolate in my home for at least 14 days. Of course, we're vigilant about social distancing and hygiene measures. The kids don't take anything between the two homes apart from the clothes on their backs and one device each. When they get back from their dad's place, their shoes go in a box at the door, their clothes go straight into the washing machine, and they wash their hands before they touch anything — door handles, their baby sister, me.
Basically, we're following the rules while still letting our kids spend their usual amount of time with both parents. And there really wasn't much discussion about it. I know other parents are doing things a little differently. Some are keeping the kids with their primary carer and facilitating contact with the other parent through phone calls and FaceTime. But this just didn't feel right to us. We have something very close to a 50/50 arrangement, and I don't feel I have the right to call the shots just because I'm the mother. Even if I do buy all the socks.
There's also the kids' emotional needs to consider. How might they respond to having their time with one parent suddenly limited? "When a young child doesn't see one parent for an extended period of time, they can develop feelings of abandonment or even develop pathological attachment styles that they carry into their adult relationships," says board certified psychiatrist Margaret Seide, MD.
This could manifest into an avoidant attachment style, where a grown child is reluctant to get close to other people for fear of being abandoned. Or they may go the opposite way, taking on a heightened sense of attachment or an anxious attachment style.
"Young kids may interpret the absence of a parent as something that is their fault and believe that their behavior is somehow responsible for the lack of contact," Dr. Seide says. "That's why it's so important to maintain a level of normalcy, even under these dire circumstances."
If you're finding co-parenting difficult right now, Dr. Seide has some suggestions. First of all, consistency is key. To maintain it, lay the ground rules early and make sure your co-parent understands them. "This should be based on safety and the emotional needs of your child," she says. "Make sure your framework limits the amount of transfers and minimize exposure to the virus, while maintaining the closest level of normalcy possible."
It's also important to come to an agreement on how to discuss world events with your kids to avoid adding to their confusion during an already unsettling time. "If one parent tends to be sheltering the child from information and says 'everything is okay' and the other is constantly watching COVID-19 news with the child in the background, that's not ideal," Dr. Seide days. "Adults should agree on what their child is exposed to and how they are going to explain to them what is going on in an age-appropriate way."
I'm not going to lie: While our kids' safety and well-being are our first priority in all this, I have also benefited from our decision to stick with our regular co-parenting plan. I can keep working my usual 40-plus hour weeks when I don't have a house full of kids 24/7. Yes, of course I miss my kids every second they're away. But having a break from them lets me get my work done and take some time for myself to recharge.
That may sound selfish, but Dr. Seide agrees that safely splitting time between parents isn't only good for the child's well-being. "It's important for the parent's welfare," she says. "If one parent is the primary caregiver who is facilitating home-schooling, preparing meals, etc., they may need a break from childcare for their own emotional health."
For more practical advice on co-parenting during lockdown, Dr. English recommends reading the recent guidelines prepared by the Association of Family and Conciliation Court and the American Academy of Matrimonial Lawyers.
Most importantly, don't beat yourself up if co-parenting isn't going as smoothly as you'd like right now. "With or without a pandemic, sometimes there are problems or issues that impact co-parenting, and your ex-partner may not be your favorite person," Dr. English says. Just try to keep things as consistent as possible, and remember: This won't last forever.
Want more essential commentary and analysis like this delivered straight to your inbox? Sign up for The Week's "Today's best articles" newsletter here.
Fauci: It's too soon to say whether Omicron will hasten pandemic's end
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WLNSW Website
2018 Youth Network Launched!
by Martha Gouniai | Mar 13, 2018 | Youth Network Blog
The Western Landcare Youth Network had its first meeting for 2018 On Friday February 23rd with an amazing group of young students gathering together to form the newest cohort in the agricultural mentoring program. The program, an initiative of Western Landcare NSW with partnership from Local Land Services, is running for its second year after its successful launch in 2017. 23 local students from Broken Hill High School and Willyama High School have registered in this year's program which will see the students meet on a monthly basis to participate in workshops and training across a variety of areas of agriculture and natural resource management. With a strong focus on connection to the land, the program aims to act as a launching pad for young people to build a passion for the land and find meaningful career paths to pursue.
For their first session the Youth Network participants were taken through 1080 and canid pest ejector training with LLS Biosecurity Officer Grant Davis. The training covered the methodology for pest management across the western region and explored the use of baiting as one tool for targeting pest species.
Students were joined in their training by several local landholders with a major aspect of the program being to connect the students with landholders and bridge the generational gap between those currently on the land and its future caretakers.
While the group were a little shy at first it didn't take long before everyone was comfortable and relaxed with a lot of laughter throughout the day. It was great to receive feedback after the launch from teachers who said the students were excited about the program and were genuinely engaged with one student commenting "this is going to make my year".
Not just about having fun there will be a lot of learning and a bit of hard work yet to come with the participants being involved in Clean Up Australia Day and with many more workshops and training opportunities throughout the year.
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Finding the Passion – Engaging Youth to the Land
I wanted to create a space where young people would …Read More »
About the Western Landcare Youth Network
The Western Landcare Youth Network is an annual program aimed …Read More »
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Newcastle and Watford 'eye' Ligue 1 star, Toon-linked Manchester United ace 'refused' to join squad ahead of draw with Aston Villa
Sunderland AFC news: Ex-Cats, Birmingham City, West Brom and Aston Villa striker in 'advanced talks' with North East club - exclusive
Kyril Louis-Dreyfus' six-word reaction to Sunderland's win over Blackpool that fans will love
The Black Cats defeated the Tangerines on Tuesday night in dramatic fashion.
By James Copley
Sunderland advanced to the third round of the Carabao Cup after an action-packed 3-2 win over Blackpool at Bloomfield Road.
Aiden O'Brien netted a hat-trick, including a stoppage-time winner in front of the away end, as Lee Johnson made seven changes to his side following the weekend's 1-0 win over AFC Wimbledon in League One.
Niall Huggins and Frederik Alves came into the starting XI to make their Black Cats debuts, yet it was O'Brien who earned most of the praise for his excellent performance.
And Sunderland owner Kyril Louis-Dreyfus was quick to react to his side's win on social media.
Posting on his Instagram story, he posted a picture of O'Brien celebrating with the caption: "This is why we love football," with three heart-eye face emojis and two clapping hands emojis accompanying the post.
Sunderland are next in action against Wycombe Wanderers in League One at the Stadium of Light on Saturday.
A message from the Football Clubs Editor
Sunderland chairman Kyril Louis-Dreyfus.
Our aim is to provide you with the best, most up-to-date and most informative Sunderland AFC coverage 365 days a year.
This depth of coverage costs, so to help us maintain the high-quality reporting that you are used to, please consider taking out a subscription to our new sports-only package here.
Your support is much appreciated. Richard Mennear, Football Clubs Editor
Kyril Louis-DreyfusSunderlandBlackpoolNiall HugginsLee Johnson


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Charitable Action
Bill And Melinda Gates Foundation Announces New USPA Director Gavin Payne
Yesterday, it was announced that Mr. Gavin Payne will become the new director for USP Policy & Advocacy (USPA), when he begins working in his new role for the Bill And Melinda Gates Foundation as of November 11th of this year.
Mr. Payne's impressive credentials include national education policy consultancy and strategic counsel, as well as advocacy and technical support that is utilized by states governments and organizations in an attempt to transform state education agencies. Educating educators is what it really is all about, by helped to build coalitions that implement college coursework or career-ready educational standards as part of each state curriculum.
Prior to working as a consultant, Payne served for more than seven years within the California Department of Education as the Chief Deputy State Superintendent of Public Instruction, a role he was promoted to after working diligently as the Chief of Staff for the California State Senate Majority Caucus Chair.
His specific skill set and experience working in many aspects of State government make him uniquely qualified to move the USPA forward as it continues to take action, harnessing the government and private contributions to the evolution of the American educational system. We wish him luck in these endeavors and look forward to progress being made as the nation continues to find new ways to properly support its most precious resource.
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Oribe Canales, the Supermodels' Hairstylist of Choice, Has Died
Katherine Cusumano
David Turnley/Getty Images
Celebrity hairstylist Oribe Canales has died, according to his longtime friend Mary Greenwell and confirmed by The New York Times's Matthew Schneier. He was 62.
Little else is known about the circumstances of Canales's death. "While we don't have an official statement from the family at this time, we can confirm that this sad news is true," a representative for the brand wrote in an email to W. "Oribe was an amazing hairdresser and friend and will be missed. Out of respect for his partner, Zaki, and his family, we have no further comment at this time."
In the late '70s, the hairstylist Garren adopted the Cuban-born, North Carolina-raised Canales as his protégé; from there, throughout the '80s and early '90s, Canales embarked on a rapid ascent to notoriety, largely through his editorial work with Steven Meisel and François Nars as well as his work backstage at many a top fashion show. A staunch advocate for massive volume hair, he "did for hairdressing what Arnold Schwarzenegger did for bodybuilding," his protegé Brad Johns told The New York Times in 2005—that is, he steered it toward maximalism.
Revisit the Late Hairstylist Oribe Canales's Greatest Hits in W
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Jennifer Lopez photographed by Mario Sorrenti with hairstyling by Oribe Canales for W Magazine, August 2013.
Concomitant with his rise were those of the original supermodels, like Linda Evangelista, Naomi Campbell, Christy Turlington, and Cindy Crawford, devotees of Canales's work all of them. (According to New York magazine, Turlington introduced Meisel—and, by extension, Nars and Canales—to Campbell and Evangelista. "'The Trinity' was born," Alex Williams wrote in 1986.) Canales was recruited to style for photographer Richard Avedon and on the runway for Versace and Marc Jacobs at Perry Ellis, where, though it contrasted with his prevailing taste, he helped usher in the low-volume, dirtbag-grunge aesthetic: "Marc wanted me to stick a barrette in the model's hair without having it actually hold anything. He was very progressive, and I hated it," Canales told Into the Gloss in 2013.
In addition to his fashion clients—who also counted among them Karen Elson and Emily Ratajkowski, as well as labels like Louis Vuitton and Tom Ford—Canales became the go-to hairstylist for one Jennifer Lopez. In 2008, he started the eponymous hair-care brand Oribe, whose dry texturizing spray went on to inspire cultlike devotion; the label recently celebrated its 10th anniversary.
Canales's friends, peers, and clients have consigned their remembrances to social media, posting on Instagram and Twitter in his memory. Scroll on for a few of the most touching tributes to the late hairstylist.
https://twitter.com/emrata/status/1074704039567339522
https://twitter.com/MileyCyrus/status/1074720695853170689
OribeNaomi CampbellLinda EvangelistaChristy TurlingtonCindy CrawfordJennifer LopezJanuary Jones
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December 5, 2014 | General News
Descent into impunity – Thisday
The Police should stay clear of partisan politics When one takes the recent unconscionable invasion of the premises of the All Progressives Congress (APC) office in Lagos by security operatives together with the earlier assault on members of the National Assembly by the police, what we are witnessing today are symptomatic of a growing culture of impunity that must be stopped. It becomes even worrisome when the Inspector General of Police displays contemptuous partisanship in the discharge of his constitutional responsibility. In case they have forgotten, the brief of the national security apparatus is the overt and covert protection of the nation and the national interest. This may be at variance with the interests and aspirations of certain individuals, groups or even the regime in power. But nothing should be done to suggest that these agencies are out to protect and defend partisan and personal interests as opposed to national interest. Unfortunately, what seems to be going on at the moment is that the executive arm of government is progressively using the nation's security operatives and agencies essentially for regime protection. Otherwise, what reason can there be for the bold and blatant invasion of the premises of a duly registered political party under the pretext of a dubious petition? The case of the National Assembly was even worse, as duly elected representatives of the people were harangued and harassed out of the Assembly grounds in an abortive bid to use subterfuge to remove the House of Representatives Speaker under the cover provided by the police. So incensed was he by what transpired that Nobel Laureate, Professor Wole Soyinka, on Tuesday had harsh words for the Inspector General of Police, Mr. Suleiman Abba: '…if shame belongs anywhere, it belongs to the Inspector General of Police and his lavish adherence to illegal and unconstitutional instructions- to undermine a democratic structure, and one- to make matters worse-convoked in response to an emergency of dire concern. What sticks to this policeman (Abba) is worse than shame, it is infamy.' While we agree with Soyinka, the net effects of the recurring misuse of security apparatus include declining profile of these critical state agencies as impartial institutions of any repute and the perception of the government as concerned only with regime survival, rather than national security. That perhaps explains why today, our security agencies are losing the respect of many Nigerians by the conduct of their helmsmen. Indeed, at a time the nation is facing a serious security challenge, when thousands of our citizens are being killed with millions being displaced, it is serious work avoidance, if not sheer irresponsibility that what concerns our security agencies is to fight the battles of the ruling Peoples Democratic Party (PDP). 'We are being proactive on account of the security situation in the country, you know that the Boko Haram has been targeting Lagos and so, we cannot afford the petition lying low,' said the Department of the State Services (DSS) deputy director, Information, Marilyn Ogar who claimed that the service received a petition that the building was used as a secret place to clone the Independent National Electoral Commission (INEC) permanent voter cards.
How could the SSS that claimed to have watched a building for weeks not know that it belonged to the APC, especially when what they said they were looking for had to do with elections? In any case, the more pertinent question in the circumstance is: If intelligence reports led the Police to the National Assembly premises in Abuja and the DSS to the APC office in Lagos, how come Boko Haram insurgents have been operating freely in the North-east or does it mean that intelligence works for our security agencies only on political matters? We hope the leadership of both the Police and the DSS will restore the confidence of Nigerians in their operations by staying clear of partisan politics.


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VILLA ON THE OCEAN - PEACE AT THE BEACH!


Francoise J. Baril, 97, of North Smithfield, died January 8, 2019 in St. Antoine Residence, North Smithfield. Born in Quebec, she was the daughter of the late Achille and Catherine Baril.
Francoise worked as a cook for Fogarty Hospital, North Smithfield, retiring in 1981. She was a communicant of Precious Blood Church, Woonsocket.
She is survived by her sister Louisette Caron of North Smithfield, as well as several nieces and nephews. She was the sister of the late Raymond Baril and Renée Hull, and aunt of the late Diane Marshall.
A Mass of Christian Burial will be celebrated Monday, January 21, 2018 at 11AM in St. Mary's Church, 77 Mendon St., Uxbridge. Burial will follow in St. John the Evangelist Cemetery, 63 Church St., North Smithfield. Calling hours are omitted. In lieu of flowers, memorial contributions may be made to: St. Antoine Residence, 10 Rhodes Ave., North Smithfield RI 02896.