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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
221

Design of Multi-Platform Control Software for Telemetry Systems

Mahini, Farid 10 1900 (has links)
International Telemetering Conference Proceedings / October 28-31, 1996 / Town and Country Hotel and Convention Center, San Diego, California / This paper discusses the requirements and design of a multi-platform system software for control, status, calibration and testing of a telemetry system.
222

ADVANCED TELEMETRY PROCESSING AND DISPLAY SYSTEM (ATPDS)

Leichner, Ted, Nicolo, Stephen J., Snyder, Ed, Stacy, Mark, Ziegler, Charles 10 1900 (has links)
International Telemetering Conference Proceedings / October 23-26, 2000 / Town & Country Hotel and Conference Center, San Diego, California / This paper describes a PC-based Advanced Telemetry Processing and Display System (ATPDS)- a highend, real-time telemetry processing and display system implemented on a COTS PC platform. for A network-centric architecture was chosen from candidate architectures as the most viable for the ATPDS. The network-centric architecture is Windows NT-based, client/server based, supporting clients and servers on both local or remote PC workstations. The architecture supports distributing processing loads across multiple workstations, optimizing mission processing requirements. The advantage of this system is its flexibility and expandability with low acquisition and life-cycle support costs. The ATPDS allows the user to configure one or more small systems into a larger high-end system based on varying mission requirements.
223

HARDWARE DOWNLOADABLE MULTI-FUNCTION TELEMETRY INPUT MODULE

Nicolais, Ray, Nicolo, Stephen J., Snyder, Ed 10 1900 (has links)
International Telemetering Conference Proceedings / October 23-26, 2000 / Town & Country Hotel and Conference Center, San Diego, California / This paper describes a Multi-Function Telemetry Input Module (TIM). The TIM module includes a 30 Mbps PCM frame synchronizer, a time code translator/generator, a PCM simulator and a tunable bit synchronizer all on a single PCI card. The module uses a generic architecture including: high density Field Programmable Gate Arrays (FPGAs), look-up table memory, dual port A/B data buffer memory and a full function PCI interface. The FPGA and the logic function of the card are downloadable via the PCI interface. This allows a single module to support many hardware functions in a telemetry front-end. The TIM is an integral part of a PC-based Advanced Telemetry Processing and Display System. This concept for hardware design ushers in a new generation of flexible downloadable telemetry products.
224

NEXT GENERATION TELEMETRY DATA ACQUISITION WITH WINDOWS® NT

Heminger, Larry J. 10 1900 (has links)
International Telemetering Conference Proceedings / October 27-30, 1997 / Riviera Hotel and Convention Center, Las Vegas, Nevada / There is a wave of change coming. It started in the industrial automation community and it is slowly and surely working its way into aerospace, satellite and telemetry applications. It’s called the PC, and its not just for simple quick-look data anymore. Using state-of-the-art commercial hardware and software technologies, PC-based architectures can now be used to perform self contained, reliable and high performance telemetry data acquisition and processing functions – previously the domain of expensive, dedicated front end systems. This paper will discuss many of the key enabling technologies and will provide examples of their use in a truly next generation system architecture based on the Microsoft® Windows NT Operating System and related features.
225

VO2-based Thermochromic and Nanothermochromic Materials for Energy-Efficient Windows : Computational and Experimental Studies

Li, Shuyi January 2013 (has links)
VO2-based films are thermochromic and exhibit high or low infrared transmittance when the temperature is below or above a critical temperature. The thermochromic switching is passive and reversible, and therefore VO2 based films are promising for energy-efficient window appli­cations. However the practicaluse of VO2 for energy-efficient windows has long been hampered by low luminous transmittance and low solar energy transmittance modulation. The main goal of this dissertation work is to address these issues. The first half of the work proposes the concept of nanothermochromics for simultaneous improvement of luminous transmittance and modulation of solar energy throughput. nanoth­ermochromics considers VO2 nanoparticle composite layers, whose optical properties were modeled by effective medium theories. Calculations on VO2 spheroids have shown that VO2 nanoparticles, especially nanospheres, can offer dramatically improved luminous transmittance and solar transmittance modulation that are not possible for films. Calculations done on coreshell nanoparticles showed comparable improvements and offer an opportunity to reduce the material costs. It was also found that the composite of In2O3:Sn (ITO) and VO2 can yield moderately high luminous transmittance, solar transmittance modulation and low-emittance properties. In the second half of the dissertation work, Mg-doped VO2 films were sputter deposited. Their band gaps and Mg-content were investigated by means of optical absorption measurement and Rutherford backscattering spectrometry, respectively. The band gaps of VO2 were found to increase by ∼3.9±0.5 eV per unit of atom ratio Mg/(Mg+V) for 0<Mg/(Mg+V)<0.21. Computations based on effective medium theory were done to estimate the performance of Mg­-doped VO2 films and nanoparticle composite layers. The results suggest that moderately doped VO2 films with 0<Mg/(Mg+V)<0.06 perform better than un-doped films and that the perfor­mance can be further enhanced with one layer of antireflection coating. The best results were achieved by un-doped VO2 nanospheres, closely followed by the VO2 nanospheres with low Mg-content. Furthermore, the an experimental study on sputter deposited VO2 nanorods has identified the geometry of the oxygen gas inlet, the type of substrate, the substrate temperature and the layer thickness as important factors that influence the growth morphology. Taken as a whole, nanothermochromics offered by VO2 nanoparticles was shown to be the best solution for VO2 based thermochromic energy-efficient window coatings.
226

A Multi-Pulse PPK Telemetry System Based on PC

Jian, Zhang, Ming-Sheng, Huang 11 1900 (has links)
International Telemetering Conference Proceedings / October 30-November 02, 1995 / Riviera Hotel, Las Vegas, Nevada / A new kind of telemetry ground data system--Multi-Pulse PPK (Pulse Position Keying) Telemetry System Based on PC(MPPK-PCTS) is presented in this paper. Being Aimed at the lower bit rate which is the essential shortcoming of Single-Pulse PPK(SPPK), Multi-Pulse PPK(MPPK) signal is introduced to this system. Its signal forms, bit rate, energy efficiency and error probability have been analysed in detail. The symmetric Bi-Pulse PPK(BPPK) signal with fixed reference pulse can be practised in engineering. In this system, front-ends are intelligent and modular, all modules are integrated in a personal computer chassis through EISA/PCI bus. The system operates under multi-media WINDOWS environment, with intelligent user interface. Faults can be detected and located automatically. With flexible performance, good expandibility and small size, the system can be used in reentry telemetry and many other fields where higher rate and lower power are both required.
227

Telemetry System User Interface for Windows™

Windingland, Kim, LaPlante, John 10 1900 (has links)
International Telemetering Conference Proceedings / October 25-28, 1993 / Riviera Hotel and Convention Center, Las Vegas, Nevada / Due to the rapid advancement of technology in GUI design tools within Microsoft Windows™, a sophisticated human-machine interface can be developed for telemetry systems. A PC Windows™-based telemetry system would effectively provide a "bridge" between the telemetry world and the Windows™ world, bringing many low cost off-the-shelf software and hardware tools into the telemetry realm that has been unprecedented. This paper describes the results of such an approach in the development of Loral's Visual Telemetry System (VTS) software.
228

Aplicación MFC para Windows: creación de un protector de pantalla para la UNMSM

Espichan Beretta, Patricia Isabel January 2002 (has links)
Actualmente, ante el auge que tienen los medios de comunicación y el uso avanzado de la tecnología en el mercado, las empresas necesitan ser más competitivas y promocionarse aún más a través de su imagen y la elaboración de sus productos. Hoy en día no sólo las grandes casas americanas de software, sino las grandes empresas multinacionales promocionan su imagen a través de los diversos accesorios que se utilizan para las computadoras como almanaques, pad’s para los mouses, protectores de pantalla (a través de disquetes, Cd’s o de la Internet), etc. (...) Es por eso que este trabajo está destinado a construir un Protector de Pantalla para la Universidad Nacional Mayor de San Marcos, contribuyendo a que alguna empresa o a algún investigador interesado en este tipo de productos, se anime a desarrollar su propio protector de pantalla, mejorando aún más sus resultados.
229

Multiplatformní mobilní aplikace databázového systému Matylda / Multi-platform mobile application of database system Matylda

Kunc, Ondřej January 2016 (has links)
System Matylda was created in order to provide a database and web interface which allows sorting, filtering and comparing of products from food and drugstore industry. The goal of this thesis is to create a user friendly mobile application for this system. The application will be available for all today's major mobile platforms. The final application uses main features of the existing web application and also takes advantage of capabilities of modern mobile devices such as maps and user location. Some of the main features are searching for detailed product information, browsing discount leaflets, comparing discounts, creating shopping lists, authentication and more. The application can be used as a smart assistant which helps with shopping for food and drugstore products and can also save both time and money. Powered by TCPDF (www.tcpdf.org)
230

Le phénomène de brunissement des vitraux médiévaux : critères d’identification et nature de la phase d’altération / The browning phenomenon of medieval stained glass windows : identification criteria and nature of the alteration phase

Ferrand, Jessica 10 December 2013 (has links)
Les vitraux du Moyen Âge, dont les pièces de verre contiennent du manganèse, sont fréquemment atteints d'une pathologie communément appelée «brunissement ». Ce phénomène, qui se traduit par la présence de taches brunes riches en manganèse en surface ou subsurface du verre limitant le passage de la lumière et gênant la lisibilité de l'œuvre, est peu documenté et son occurrence parmi les vitraux n'est pas précisément connue. Un des problèmes majeurs pour ce qui concerne la conservation/restauration des œuvres est l'absence de traitements efficaces et durables pour cette pathologie. En France actuellement, l'absence de traitement est donc préconisée, ce qui ne satisfait ni les architectes, ni les conservateurs, ni les restaurateurs. La connaissance approfondie des processus physico-chimiques à l'origine du phénomène de brunissement est donc nécessaire pour proposer des réponses aux questions et aux attentes des conservateurs/restaurateurs. Au cours de cette thèse un panel de 24 échantillons de verres de vitraux historiques et de 3 échantillons archéologiques ont été étudiés par des méthodes microscopiques et spectroscopiques afin i) d'établir des critères d'identification du phénomène de brunissement dû au manganèse et ii) d'obtenir des informations sur la nature des phases brunes et sur le degré d'oxydation du manganèse dans ces phases. Parallèlement à l'étude des échantillons anciens, des verres modèles de composition proche de celle des vitraux médiévaux ont été synthétisés avec deux objectifs : i) la compréhension de la réaction entre le manganèse et le fer et de l'influence des paramètres de fabrication sur la couleur des verres et ii) l'étude de l'influence que peuvent avoir les bactéries dans le développement du phénomène de brunissement / The medieval stained glass windows, which glass composition contain manganese, are often affected by an alteration commonly designated as "browning". This phenomenon results in the presence of Mn-rich brown spots at the surface or subsurface of the glass thus limiting the passage of light and hindering the interpretation of the artwork. Poorly documented, the occurrence of browning among stained glass windows is not precisely described. Currently, one of the major problems in terms of conservation and restoration is that long-term treatments are not available. In these conditions, the recommendations are not to treat the affected glasses, a solution that satisfies neither the architects nor the curators, nor the restorers. In order to answer the questions and expectations of curators and restorers the comprehension of this phenomenon is essential. In this work, a panel of 24 historical and 3 archaeological stained glass samples were studied by microscopic and spectroscopic methods in order to i) establish reliable criteria for identifying the browning phenomenon due to manganese and ii) obtain information on the nature of the dark phases and the oxidation state of manganese in these phases. In parallel with the study of ancient samples, synthetic glasses with medieval-like compositions were synthesized for: i) understanding the reaction between manganese and iron, as well as the influence of the process parameters on the color of glasses and ii) studying the influence of bacteria in the development of the browning phenomenon

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