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Revitalizace veřejných prostorů hlavního nádraží v Brně a podchodu pod ním / Revitalization of the Central Station and the Underpass BeneathRichter, Jiří January 2011 (has links)
Current Status Because we are waiting for transfer of the station, the railway is in a deplorable state. Technical and capacity (we can check 30 000 passengers per hour, during the fair is required 50 000 passengers per hour). During the reconstruction is needed to create a network of stations that are interconnected with the public transport. The train will become part of public transport and reduce the burden on the main station node. Move or don't move? The question which is difficult to answer. Both options have their advantages and disadvantages, and they are changing over time. The situation has changed very much in the advent of the financial crisis. Therefore, it should be professional discussion leading to the optimal solution. This does not happen, politicians are divided into two groups already know in advance that their pproposal is the best. Afterwards, looking for a reasons. I decided to check the option not move. The biggest drawback of this option is problematic construction (in service or temporary move). The biggest advantage is its link to public transport and the proximity to the town. Region Connection to the region is very important for me. This I see as a advantage of Brno, which should be further developed. Together with the development of public transport, automobile transport should be reduced. Barrier My work is trying to disprove the idea that the railway creates a barrier. On the contrary, I try to look at rail as a place that connects. Not only each stop, but the parts of the town as well. Construction Reinforced concrete arches are arranged in a triangle layout, creating a spatial truss. There is a train station in it. Trains ar placed on it. Typology The station is treated as free space, which is subsequently filled with different functions.These functions may be, if necessary, modified.
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International Space Station Remote Sensing Pointing AnalysisJacobson, Craig 01 January 2005 (has links)
This paper analyzes the geometric and disturbance aspects of utilizing the International Space Station for remote sensing of earth targets. The proposed instrument is SHORE (Station High-Sensitivity Ocean Research Experiment), a multi-band optical spectrometer with 15 m pixel resolution. The analysis investigates the contribution of the error effects to the quality of data collected by the instrument. The analysis begins with the discussion of the coordinate systems involved and then conversion from the target coordinate system to the instrument coordinate system. Next the geometry of remote observations from the Space Station is investigated including the effects of the instrument location in Space Station and the effects of the line of sight to the target. The disturbance and error environment on Space Station is discussed covering factors contributing to drift and jitter, accuracy of pointing data and target and instrument accuracies. Finally, there is a brief discussion of image processing to address any post error correction options.
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Maximum flow-based formulation for the optimal location of electric vehicle charging stationsParent, Pierre-Luc 08 1900 (has links)
Due à l’augmentation de la force des changements climatiques, il devient critique d’éliminer
les combustibles fossiles. Les véhicules électriques sont un bon moyen de réduire notre
dépendance à ces matières polluantes, mais leur adoption est généralement limitée par le
manque d’accessibilité à des stations de recharge. Dans cet article, notre but est d’agrandir
l’infrastrucure liée aux stations de recharge pour fournir une meilleure qualité de service aux
usagers (et une meilleure accessibilité aux stations). Nous nous attaquons spéficiquement
au context urbain. Nous proposons de représenter un modèle d’assignation de demande de
recharge à des stations sous la forme d’un problème de flux maximum. Ce modèle nous sert
de base pour évaluer la satisfaction des usagers étant donné l’infrastruture disponible. Par la
suite, nous incorporons le model de flux maximum à un programme en nombre entier mixte
qui a pour but d’évaluer l’installation de nouvelles stations et d’étendre leur disponibilité
en ajoutant plus de bornes de recharge. Nous présentons notre méthodologie dans le cas de
la ville de Montréal et montrons que notre approche est en mesure résoudre des instances
réalistes. Nous concluons en montrant l’importance de la variation dans le temps et l’espace
de la demande de recharge lorsque l’on résout des instances de taille réelle. / With the increasing effects of climate change, the urgency to step away from fossil fuels
is greater than ever before. Electric vehicles (EVs) are one way to diminish these effects,
but their widespread adoption is often limited by the insufficient availability of charging
stations. In this work, our goal is to expand the infrastructure of EV charging stations, in
order to provide a better quality of service in terms of user satisfaction (and availability of
charging stations). Specifically, our focus is directed towards urban areas. We first propose
a model for the assignment of EV charging demand to stations, framing it as a maximum
flow problem. This model is the basis for the evaluation of the user satisfaction by a given
charging infrastructure. Secondly, we incorporate the maximum flow model into a mixedinteger linear program, where decisions on the opening of new stations and on the expansion
of their capacity through additional outlets is accounted for. We showcase our methodology
for the city of Montreal, demonstrating the scalability of our approach to handle real-world
scenarios. We conclude that considering both spacial and temporal variations in charging
demand is meaningful when solving realistic instances.
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DECENTRALIZED KEY GENERATION SCHEME FOR CELLULAR-BASED HETEROGENEOUS WIRELESS Ad Hoc NETWORKSGUPTA, ANANYA 02 October 2006 (has links)
No description available.
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Electric Vehicle Charging Network Design and Control StrategiesWu, Fei January 2016 (has links)
No description available.
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Mätosäkerheter vid trigonometrisk höjdmätning : En jämförelse mellan ett avvägningsinstrument och en multistationNilsson, Mimmi January 2016 (has links)
Avvägning är den traditionella metoden för höjdmätning, medan trigonometrisk höjdmätningunderlättar vid höjdmätning på längre avstånd och vid kuperad terräng. Syftet med studien varatt undersöka mätosäkerheten vid trigonometrisk höjdmätning. Detta genom en jämförelsemed traditionell höjdmätning som utförts med ett finavvägningsinstrument samt hur mångahelsatser som krävs för att erhålla resultat med låg mätosäkerhet för trigonometriskhöjdmätning. Kravet som ställdes var 2 mm√L, där L är avvägningstågets längd i km.Mätningarna har genomförts i två tunnlar varav i den ena var markytan plan och i den andralutade marken 1 m på 10 m (1/10). Höjdfixarna monterades i bergväggen ungefär var tiondemeter och höjdbestämdes med avvägningsinstrument, DNA03, för att erhålla sanna höjder förhöjdfixarna. Därefter mättes höjdfixarna in genom trigonometrisk höjdmätning i helsatsermed multistationen MS50. Höjder erhållna med trigonometrisk höjdmätning beräknades ochnätutjämnades i Svensk byggnadsgeodesi (SBG) Geo 15 för att sedan kunna jämföra medhöjd som erhållits med avvägningsinstrument. Signifikanstest beräknades för varje mätningför att avgöra om mätningarna var av samma population.Slutningsfelet för samtliga avvägningståg ligger inom toleransen och tillförlitligheten förhöjdbestämningen är hög. Vid höjdbestämning med trigonometrisk höjdmätning kan intesamma låga mätosäkerhet som med avvägningsinstrument förväntas, men inte långt ifrån.Med trigonometrisk höjdmätning, utfört med MS50, för distanser mellan 10-100 m kan enmätosäkerhet runt 0,5-1,5 mm förväntas vid mätning i två helsatser. Signifikanstestet visadeatt fler mätningar var inom konfidensintervallet 95 % när två kända höjder användes iberäkningarna i stället för en känd höjd. Vid mätning med totalstation kan lägremätosäkerheter för trigonometrisk höjdmätning förväntas än 0,5-1,5 mm på 10-100 m. / The aim of the thesis was to determine the uncertainty of trigonometric height measurementin comparison by traditional height measurement performed with a digital level. Levelling isthe traditional method of height measurement while the trigonometric height measurementfacilitates height measurement at longer distances and in terrain. The uncertainty of thetrigonometric height measurement has been investigated as well as how many rounds ofmeasurements are sufficient for measurements between 10-100 m.The measurements were carried out in two tunnels where in one the ground was plane and inthe other it is grade was 1/10. Height fixes were mounted about every 10 meters in the rockwall and height determined with a levelling instrument, DNA03, to obtain true elevations onheight fixes. Thereafter, the height of the fixes were measured through trigonometric heightmeasurement in one, two, three and four rounds of measurements with a multi station, MS50.Elevation data was calculated and levelling net adjusted in Svensk byggnadsgeodesi (SBG)Geo to then compare the height data from the trigonometric height measurement with thelevelled height obtained by levelling instruments. Significance tests were calculated for themeasurement to determine if the measurements are of the same population.Connection error of all leveling was within tolerance which shows that the reliability of theheight determination is high. The height determination by trigonometric height measurementcan not be of the same low uncertainty that is expected with levelling, but not far from it.With trigonometric height measurement, carried out with MS50, for distances between 10-100m can an uncertainty of 0.5-1.5 mm be expected when two rounds of measurements are used.Significance test shows that more measurements are within the confidence interval 95% whentwo known heights are used in the calculations, instead of one known height.
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Deploying multiple sensor applications in a networkKondam, Sudhir Chander Reddy January 1900 (has links)
Master of Science / Department of Computing and Information Sciences / Gurdip Singh / TinyOS is an open-source component based operating system designed for highly memory constrained wireless embedded sensor network. TinyOS includes interfaces and components for communication management, routing and data acquisition tools to be refined further for custom applications.
This project aims at developing a system which detects overlapping paths for data collection in different applications in the network and utilizing that information for efficient data acquisition. This prevents a reconfiguring the entire network of wireless sensor nodes (called motes) for each new application request. The application for initial or first data acquisition request tries to build the tree architecture on motes in the network where each node in the tree knows its immediate parent and children. The application builds the tree routed at the base station for the initial request and each intermediate node sends data to its parent when the data request is made. Each base station can request Light, Temperature and Passive Infrared sensory data from all or a subset of motes present in the system.
When a new base station comes and connects to the network through a mote/node in the tree, the system reconfigures only those parts of the tree built in the initial phase which do not overlap with the tree required for the new base station as the root, all the other overlapping parts of the tree are left unchanged. We present experimental result to illustrate the efficiency of the approach.
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Integration of electricity cost saving interventions on a water distribution utility / Wynand Johannes Jacobus BreytenbachBreytenbach, Wynand Johannes Jacobus January 2014 (has links)
Electrical energy has become a very important and integrated part of the current era. Electricity cost saving interventions, such as load shifting, form part of demand side management (DSM) interventions. DSM interventions have been successfully implemented in the past to ensure reliable supply of electricity during the Eskom peak periods. It has been established that there is a need to implement an electricity cost saving intervention on a large water distribution utility.
This dissertation focuses on the integration of electricity cost saving interventions on a water distribution utility. An investigation methodology, as well as an integration strategy for implementing an electricity cost saving intervention were developed. This study expands on the importance of an integrated approach. It further discusses the shortcomings of the current control philosophies of a large water distribution utility in South Africa.
A load shifting project was implemented as an electricity cost saving intervention on a large water distribution utility in South Africa. The proposed integrated strategy was simulated and an optimised approach developed. It was found that the implementation of the strategy was limited due to process constraints and increasing water demand.
Utilising the large combined installed capacity of the pumps in the water distribution utility and the storage capacity, the strategy was implemented and cost savings obtained. It was concluded that load shifting was possible on individual pumping stations in the water distribution utility subsystems, and could, therefore, be quantified to an integrated approach. / MIng (Mechanical Engineering), North-West University, Potchefstroom Campus, 2015
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Integration of electricity cost saving interventions on a water distribution utility / Wynand Johannes Jacobus BreytenbachBreytenbach, Wynand Johannes Jacobus January 2014 (has links)
Electrical energy has become a very important and integrated part of the current era. Electricity cost saving interventions, such as load shifting, form part of demand side management (DSM) interventions. DSM interventions have been successfully implemented in the past to ensure reliable supply of electricity during the Eskom peak periods. It has been established that there is a need to implement an electricity cost saving intervention on a large water distribution utility.
This dissertation focuses on the integration of electricity cost saving interventions on a water distribution utility. An investigation methodology, as well as an integration strategy for implementing an electricity cost saving intervention were developed. This study expands on the importance of an integrated approach. It further discusses the shortcomings of the current control philosophies of a large water distribution utility in South Africa.
A load shifting project was implemented as an electricity cost saving intervention on a large water distribution utility in South Africa. The proposed integrated strategy was simulated and an optimised approach developed. It was found that the implementation of the strategy was limited due to process constraints and increasing water demand.
Utilising the large combined installed capacity of the pumps in the water distribution utility and the storage capacity, the strategy was implemented and cost savings obtained. It was concluded that load shifting was possible on individual pumping stations in the water distribution utility subsystems, and could, therefore, be quantified to an integrated approach. / MIng (Mechanical Engineering), North-West University, Potchefstroom Campus, 2015
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SATELLITE GROUND STATION SECURITY USING SSH TUNNELINGMauldin, Kendall 10 1900 (has links)
International Telemetering Conference Proceedings / October 20-23, 2003 / Riviera Hotel and Convention Center, Las Vegas, Nevada / As more satellite ground station systems use the Internet as a means of connectivity, the security of
the ground stations and data transferred between stations becomes a growing concern. Possible
solutions include software-level password authentication, link encryption, IP filtering, and several
others. Many of these methods are being implemented in many different applications. SSH (Secure
Shell) tunneling is one specific method that ensures a highly encrypted data link between computers
on the Internet. It is used every day by individuals and organizations that want to ensure the security
of the data they are transferring over the Internet. This paper describes the security requirements of a
specific example of a ground station network, how SSH can be implemented into the existing
system, software configuration, and operational testing of the revised ground network.
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