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Roudnická, Michaela. "Zenith House." Master's thesis, Vysoké učení technické v Brně. Fakulta výtvarných umění, 2016. http://www.nusl.cz/ntk/nusl-240506.
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Diploma project Zenith House is trying to find and map a position of figural painting in a contemporary art world. Through a detailed study of works of contemporary painters, who use historical influences and compositions, it argues the evolution of painting. It slightly touches the phenomenom of portraiture and the contemporary trend of de-skilling the craftsmen.
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Tappero, Fabrizio Surveying & Spatial Information Systems Faculty of Engineering UNSW. "Remote synchronization method for the quasi-zenith satellite system." Publisher:University of New South Wales. Surveying & Spatial Information Systems, 2008. http://handle.unsw.edu.au/1959.4/41467.
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This dissertation presents a novel satellite timekeeping system which does not require on-board atomic clocks as used by existing navigation satellite systems such as GPS, GLONASS or the planned GALILEO system. This concept is differentiated by the employment of a synchronization framework combined with lightweight steerable on-board clocks which act as transponders re-broadcasting the precise time remotely provided by the time synchronization network located on the ground. This allows the system to operate optimally when satellites are in direct contact with the ground station, making it suitable for a system like the Japanese Quasi-Zenith Satellite System, QZSS. Low satellite mass and low satellite manufacturing and launch cost are significant advantages of this novel system. Two possible implementations of the time synchronization network for QZSS are presented. Additionally, the problem of satellite communication interruption is analyzed and a solution is presented. Finally a positioning and timing quality analysis, aimed to provide understanding of the actual timing quality requirements for QZSS, is presented.
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Fabry, Frédéric. "Precipitation estimates by radar : a zenith pointing radar perspective." Thesis, McGill University, 1990. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=59887.
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Data collected from zenith pointing radar is used to study the range dependence of some meteorological radar errors associated with different sampling methods between radar and gauges in stratiform precipitation. Errors due to the vertical variation of reflectivity such as those related with the bright band or with snow growth cause a much larger bias in radar estimates than those due to beam filling or gradients. The maximum useful range varies with the bright band height and the elevation angle program used, a CAPPI giving superior results especially for snow. The sudden changes in bright band height over short distances and the large scatter of its thickness limit the accuracy of current corrections for the vertical variation of reflectivity based on scanning radar data. The possibility of using a zenith pointing radar to obtain this correction is discussed.
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Suminska-Ebersoldt, Olga [Verfasser]. "Stratospheric ClOOCl chemistry at high solar zenith angles / Olga Suminska-Ebersoldt." Wuppertal : Universitätsbibliothek Wuppertal, 2012. http://d-nb.info/1029847762/34.
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Reeves, Nicholas. "Constructing an instrument : Nevil Maskelyne and the zenith sector, 1760-1774." Thesis, University of Cambridge, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.611702.
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Payne, Gregory N. "Implementation of the core graphics system on the Zenith Z-100." DigitalCommons@Robert W. Woodruff Library, Atlanta University Center, 1985. http://digitalcommons.auctr.edu/dissertations/2622.
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This thesis concerns the implementation of the CORE GRAPHICS SYSTEM on the ZENITH Z-100 microcomputer, using the MS-DOS operating system and the MICROSOFT PASCAL programming language. The system gives the user the ability to create graphic displays via computer utilizing either a printer or a CRT. The basic features of the system, the problems encountered in its implementation, the general principles used, and an operations guide are documented within the paper. There are programming examples to illustrate the usage of the different system commands and there is documented source code of all system subroutines.
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Vinson, Heather K. "The blue zenith: establishing ethos in narrative journalism, past and present." Thesis, Boston University, 1998. https://hdl.handle.net/2144/27790.
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Boston University. University Professors Program Senior theses.<br>PLEASE NOTE: Boston University Libraries did not receive an Authorization To Manage form for this thesis. It is therefore not openly accessible, though it may be available by request. If you are the author or principal advisor of this work and would like to request open access for it, please contact us at open-help@bu.edu. Thank you.<br>2031-01-02
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Nunes, Mônica Soares 1987. "Medidas de intensidade de múons cósmicos com cintiladores plásticos." [s.n.], 2015. http://repositorio.unicamp.br/jspui/handle/REPOSIP/276950.
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Orientador: Ernesto Kemp<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Física Gleb Wataghin<br>Made available in DSpace on 2018-08-27T11:36:07Z (GMT). No. of bitstreams: 1
Nunes_MonicaSoares_M.pdf: 4211832 bytes, checksum: 7414fb6290c92c79d1f11b0fdd3707db (MD5)
Previous issue date: 2015<br>Resumo: O estudo da radiação cósmica é de extrema importância para a astrofísica. Partículas oriundas de diferentes locais, tanto do sistema solar, quanto fora dele, chegam constantemente à Terra, carregando muitas informações a respeito da sua origem. Quando essas partículas encontram a atmosfera terrestre da-se início a uma cascata de partículas secundárias resultantes da interação do raio cósmico primário com a atmosfera. Dessa chuva de partículas secundárias, os múons são as partículas carregadas mais abundantes que chegam à superfície da Terra. Múons são altamente penetrantes, o que pode representar um problema muito grande em ex- perimentos, mesmo que subterrâneos, de outras partículas. Devido ao seu grande número, eles se tornam extremamente necessários em reconstruções de chuveiros atmosféricos para obtenção de informações a respeito da partícula primária. Tendo conhecimento de suas características, como por exemplo fluxo, ruídos em experimentos podem ser tratados e outros estudos podem ser otimizados. A intensidade de múons na superfície terrestre é bem conhecida como sendo anisotrópica e com uma dependência do ângulo zenital da forma ? (?) = ?0?osn(?). Por simplicidade nos cálculos, este expoente n é freqüentemente utilizado com valor igual a 2, mas estudos mostram que este parâmetro possui dependência com a posição geográfica e com a faixa de energia dos múons em questão. Esta dissertação propõe um método simples para a precisa determinação do expoente n e da intensidade vertical de múons simultaneamente, que pode ser realizado de maneira rá- pida em qualquer laboratório de raios cósmicos, utilizando detectores de partículas, que juntos formam o chamado Telescópio de Múons. Como resultado da aplicação do método no Laboratório de Léptons em Campinas - SP, foi obtido um valor de n de aproximadamente 2.30 e um valor para a intensidade vertical de múons em torno de 146.40? z/m2sr. Dados muito satisfatórios e de acordo com outros experimentos semelhantes já realizados anteriormente no Laboratório. O método também foi aplicado no Fermilab, localizado nos Estados Unidos. Nesta outra loca- lização geográfica, os resultados diferiram bastante dos obtidos em Campinas, com n aproxima- damente 3.66 e intensidade vertical de múons em torno de 158.33 ? zm-2sr-1. O mesmo experimento com o telescópio será realizado em outras posições geográficas afim de se verificar o comportamento do expoente n e da intensidade vertical de múons em diferentes locais<br>Abstract: The study of cosmic radiation is of utmost importance to astrophysics. Particles from different locations, from inside the solar system, and outside it, constantly arrive on Earth, carrying a lot of information about its origin. When these particles arrives to Earth¿s atmosphere they initiate a cascade of secondary particles resulting from the interaction of the primary cosmic ray with the atmosphere. From this rain of secondary particles, muons are the most abundant charged particles that reach the Earth¿s surface.Muons are highly penetrating, which can be a very big problem in some experiments, even if underground, of other particles. Because of their large number, they become extremely necessary in reconstructions of air showers to obtain information about the primary particle. Having knowledge of its characteristics, such as flux and distribution, noise in some experiments can be treated and other studies can be optimized.Muon intensity in the Earth¿s surface is well known to be anisotropic and has dependence on the zenith angle of ? (?) = ?0 cosn(?). For simplicity in the calculations, this n exponent is often used with a value of 2, but studies show that this parameter has dependence on the geographical position and on the energy range of muons in question. This dissertation proposes a simple method for accurate determination of the exponent n and muon vertical intensity simultaneously, that can be determined quickly in any laboratory cosmic rays using a particle detector, which was called Muon Telescope. As a result of the application of the method on the Leptons Laboratory, in Campinas - SP - Brazil, the value for n that was obtained is about 2.30 and a value for the vertical intensity of muons around 146.40? z/m2sr. This data is very satisfactory and according to similar experiments previously conducted at the Laboratory.This method was applied on Fermilab, located at the United States. On this new geographical location, the results were different from that obtained at Campinas, with n about 3.66 and the vertical intensity around 158.33 ? zm-2sr-1.The same experiment with the telescope will be held in other geographical locations in order to check the n exponent behavior and the muon intensity at different locations<br>Mestrado<br>Física<br>Mestra em Física
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Mohamed-Tahrin, Norhaslinda. "Ground-based zenith-sky measurements of stratospheric BrO by ultraviolet absorption spectroscopy." Thesis, University of Cambridge, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.620660.
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Gao, Hua. "Sensor view angle and solar zenith angle effects on grassland canopy spectra." Thesis, The University of Arizona, 1991. http://hdl.handle.net/10150/277935.
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The experiment was conducted at the Kendall Site of the Walnut Gulch Experiment Watershed in southeastern Arizona during the 1990 growing season. A special apparatus for mounting a spectroradiometer and acquiring bidirectional reflectance data was constructed and used over a semi-desert grassland plot. For purposes of analyzing multidirectional vegetation spectral behavior, the Normalized Difference Vegetation Index (NDVI) and Soil Adjusted Vegetation Index (SAVI) were calculated as a function of view angle and solar zenith angle throughout the growing season. The results have shown that the SAVI considerably minimized anisotropic behavior whereas the NDVI was very sensitive to both solar zenith and view angles. With further refinement the SAVI offers a technique whereby satellite measurements of vegetation activity could be further understood.
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Golding, John Cristopher. "Once upon the tide : the English coastal motor barge reaches its zenith." Thesis, University of Hull, 2007. http://hydra.hull.ac.uk/resources/hull:13201.
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The English coastal motor barge (ECMB) was an estuarial vessel with a limited sea-going capacity. It represented a unique line of maritime evolution carrying the small initial capital cost, minimal manning, and low operating costs of the spritsail barge (which had come to dominate lower North Sea cargo carrying under sail) directly into the second half of the 20th century. It avoided transition through the era of the steam engine and the crewing, costs and unionisation associated with it. This thesis is essentially a case study of a distinct class of tonnage. It aims to (a) record the development, growth and decline in use of the ECMB; (b) determine, set down, and quantify, those factors which allowed the ECMB to thrive as a distinct line of maritime development; (c) establish which environmental and financial factors gave rise to growth and success in an era when British - and Western European - shipping generally was in rapid decline; (d) set the extent of ECMB use in the context of (1) UK foreign trade, (2) the 'British' merchant fleet, (3) Continental competition; before much existing, unpublished, documentary evidence is lost for ever. It considers the end of Empire and changing patterns of trade, voyages, cargoes, freight rates, technical change, the cost of money in Britain, UK Inflation, and taxation, but also the contribution of increased regulation and changed UK government attitudes in the recent decline of the ECMB. It suggests that when the operation of the UK National Dock Labour Scheme acted to disadvantage major UK ports in competition with near-Continental rivals in loading and discharging ocean-going vessels, the ECMB had reached a stage of maturity and availability which facilitated the conversion of much UK trade into transhipment traffic moving via Continental ports. On entry of the UK into the EEC, a means of cheap short-sea bulk carriage was available.
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Kinghorn, David Martin. "Solar illuminance models based on other meteorological data." Thesis, Edinburgh Napier University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.286125.
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Mitakidou, Danae [Verfasser]. "Die endovaskuläre Therapie des Bauchaortenaneurysmas mit dem Zenith®-Aortenstentprothesen-System / Danae Mitakidou." Berlin : Medizinische Fakultät Charité - Universitätsmedizin Berlin, 2016. http://d-nb.info/1113011939/34.
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Esteves, Marques Nicole [Verfasser]. "EVAR Implantation bei infrarenalem Aortenaneurysma mittels Zenith Flex AAA Endovascular Graft / Nicole Esteves Marques." Bonn : Universitäts- und Landesbibliothek Bonn, 2017. http://d-nb.info/1139118706/34.
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DAOUD, ABDELHAMID. "Traitement de la luxation congenitale de hanche apres l'age de la marche par la traction au zenith." Nice, 1993. http://www.theses.fr/1993NICE6538.
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Wright, Jonathan C. "Evaluation of LOWTRAN and MODTRAN for use over high zenith angle/long path length viewing /." Online version of thesis, 1991. http://hdl.handle.net/1850/11352.
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Andrade, Antonio Marcos Delfino de. "Radiação solar global e fotossinteticamente ativa (PAR) acima e abaixo do dossel de floresta de mata atlântica no estado de Alagoas." Universidade Federal de Alagoas, 2011. http://repositorio.ufal.br/handle/riufal/890.
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Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>A Mata Atlântica é um dos mais ricos ecossistemas em termos de diversidade biológica do mundo. Ela é representada por vários tipos de vegetações, além de ser caracterizada pelo alto grau de endemismo. Atualmente, esta floresta, se encontra bastante fragmentada, restando apenas 7,5%. Apesar disso, ainda mantém níveis extremamente altos de biodiversidade e endemismo. Contudo, este bioma, provavelmente, é o mais devastado e seriamente ameaçado do planeta. Apesar da importância do estudo sobre Mata Atlântica, pouco se conhece dos processos físicos, químicos e biológicos existentes acima e abaixo do dossel. O estudo da radiação solar é importante para entender os diversos processos físicos, químicos e biológicos que ocorrem na biosfera, em particular em floresta. Ainda no ambiente de floresta a radiação solar se destaca entre outros fatores, sendo fundamental nos processos de fotossíntese, aquecimento do ar e da superfície e evapotranspiração. O processo de fotossíntese ocorre apenas em parte do espectro da Radiação Solar, compreendido entre os comprimentos de onda eletromagnética de 0,4 a 0,7 μm e denominada de Radiação Fotossinteticamente Ativa (PAR). Com base no exposto, o objetivo é caracterizar a evolução temporal da Radiação Solar Global (Rg) e Fotossinteticamente Ativa acima e abaixo de um fragmento remanescente de Mata Atlântica no Estado de Alagoas. O estudo foi realizado, no período de outubro/2009 a setembro/2010, com a obtenção dos dados (Rg, PAR, PAR refletida e precipitação) provenientes de uma torre micrometeorológica (10º17 36 S, 36º17 24 W) de 26 metros instalada numa área de floresta de Mata Atlântica. A área de estudo está localizada na Reserva Particular do Patrimônio Natural (RPPN) Lula Lobo I inserida na fazenda Capiatã A, pertencente à Usina Coruripe Açúcar e Álcool S/A, no município de Coruripe, Alagoas. Verificou-se que a radiação solar incidente (Radiação Solar Global Externa (Rg_Ext) e Radiação Fotossinteticamente Ativa na parte Externa (PAR_Ext)) seguem a sazonalidade imposta pelo movimento aparente do Sol. Na época seca observou-se os maiores registros de Rg_Ext e PAR_Ext, com respectivas médias superiores a 900 W m-2 e 600 W m-2. Enquanto que, na época chuvosa foram registradas as menores médias, com Rg_Ext abaixo de 500 W m-2 e PAR_Ext inferior a 300 W m-2. Entretanto, uma pequena fração da radiação solar atinge o solo da floresta, ou seja, menos de 8% incide sobre a superfície. A radiação solar que incide no chão da floresta tem grande dependência do ângulo zenital (Z) e da estrutura do dossel. Notou-se também grande influência do Z na Rg_Ext e PAR_Ext, onde se verificou que quanto maior Z, menores são os valores destas componentes, em razão do maior caminho ótico que os raios solares tem que percorrer para atingir à superfície.
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Зубик, Назар Олександрович. "Інклінометр (вимірювальний перетворювач для визначення зенітного кута)". Bachelor's thesis, КПІ ім. Ігоря Сікорського, 2021. https://ela.kpi.ua/handle/123456789/42226.
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В роботі представлено спроектовану систему вимірювання зенітного кута інклінометра.
Проведено огляд засобів вимірювання зенітного кута інклінометра представлено історичний огляд розвитку систем вимірювання зенітного кута на базі акселерометрів і гіроскопів.
Розроблено програмну модель інклінометра та проведено дослідження в середовищі MatLab. Розроблено конструктивну схему вимірювача зенітного кута та представлена принципова схема акселерометра<br>Current paper presents a system designed for measuring of an inclinometer’s zenith angle.
The review of measurement instruments of an inclinometer’s zenith angle is performed. In addition, the historical review of measurement systems for zenith angle based on accelerometers and gyroscopes is presented.
The research and the software model of the inclinometer was performed in the MatLab environment. The constructive scheme of the zenith angle meter is developed and the principal diagram of the accelerometer is presented.
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Brown, Thomas R. Jr. "A general purpose graphics support library for the Ada programming language hosted on the Zenith H/Z-100 computer." Thesis, Monterey, California: U.S. Naval Postgraduate School, 1986. http://hdl.handle.net/10945/21879.
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Hodkinson, Clare Frances. "Interrelationships among age, zinc and markers of immunity in healthy older individuals aged 55-70 years : the ZENITH study." Thesis, University of Ulster, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.428395.
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alojaiman, shahad N. M. A. A. "Tropospheric Delay Modeling using GNSS Observations from Continuously Operating Reference Stations (CORS)." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1574536144031026.
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Celis, Arévalo Maricarmen. "Centro de Tratamiento para Niños con TEA en Trujillo." Bachelor's thesis, Universidad Peruana de Ciencias Aplicadas (UPC), 2019. http://hdl.handle.net/10757/648809.
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La finalidad de este proyecto es cooperar con el desarrollo de los niños con Trastorno Espectro Autista, en donde cada gesto arquitectónico responde a su hipersensibilidad, siendo la curva el elemento principal envolvente que encierra el espacio, el cual protege al usuario sin invadirlo y a su vez representa lo orgánico de la naturaleza a través de la integración de ambos. Además, se plantea una serie de terapias comunes y alternativas que ayuden a mejorar las condiciones de los niños, siendo la Equinoterapia el plus a favor de ello. Todos estos aspectos están marcados por la transición de interior-exterior y público-privado, la cual está dada por luz cenital que acompaña todo el recorrido del proyecto.<br>The purpose of this project is to cooperate with the development of children with Autism Spectrum Disorder, where each architectural gesture responds to their hypersensitivity, the curve being the main enveloping element that encloses the space, which protects the user without invading it and in turn It represents the organic nature through the integration of both. In addition, a series of common and alternative therapies are proposed that help improve the conditions of children, with equinotherapy being the plus in favor of it. All these aspects are marked by the transition of interior-exterior and public-private, which is given by overhead light that accompanies the entire project path.<br>Tesis
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Mohammed, Jareer Jaber. "Precise Point Positioning (PPP) : GPS vs. GLONASS and GPS+GLONASS with an alternative strategy for tropospheric Zenith Total Delay (ZTD) estimation." Thesis, University of Nottingham, 2017. http://eprints.nottingham.ac.uk/45468/.
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Different Global Navigation Satellite System (GNSS) constellations are available these days. This has led to an increase in the number of satellites available for the user, and that presents different performance levels for the user requirements like accuracy and convergence time. However, these benefits come from different constellations that have different reference times and for some, different frequencies. At the same time, the Precise Point Positioning (PPP) has also been presented as being a position solution within a certain level of accuracy and precision. Therefore, it is important to investigate the potential benefits from the PPP with a view to using a single or multi-constellation. These investigations include accuracy, precision, and convergence time. In addition, it is important to look at the individual performance of these constellations regarding the above improvements. This will give a clear decision about adopting a single or multi-constellation. It will also provide an independent solution, for instance for the station coordinates and troposphere, and independent estimated station velocities, without additional cost. This research has been conducted in three stages. Firstly, the research begins with an evaluation of the GPS and the GLONASS (GLO) constellation geometry using a new approach for computing the cumulative dilution of precision (DOP) rather than the conventional DOP which was found to be latitude-dependent. Then it investigates the achievable station coordinate accuracy from PPP scenarios for static positioning after choosing the most appropriate PPP strategy that needs to be followed. Furthermore, the effect of different precise products (satellite orbits and clocks) on the PPP solutions and the difference between those products has been covered. It has been proven that PPP solutions can reach the same precision as a Global Double-Difference (GDD) GPS solution. Most importantly, the PPP GLO is found to be capable of producing similar precision and accuracy when compared to PPP GPS as well as the GDD GPS solution. Secondly, this research also investigates the conventional strategy (using a model for the hydrostatic component and estimating the wet component) for estimating the troposphere Zenith Total Delay (ZTD) from the PPP solutions with an evaluation of the obtained accuracy of the tropospheric ZTD from four tropospheric models. It also presents an alternative strategy (estimating both components using different mapping functions and different process noises) for estimating the tropospheric ZTD from the PPP that can give millimeters of ZTD accuracy without affecting the station coordinate estimation and without relying on any metrological data or models. Validations have been conducted for the new strategy using PPP GPS, PPP GLO and PPP GPS+GLO. Regional validation was conducted over seven consecutive days for seven weeks, using the Ordnance Survey of Great Britain (OSGB) stations in the UK, and long-term (over one year) validation was conducted using 22 stations from the OSGB. The regional and long-term validations have been conducted using three different final precise products (satellite orbits (SP3) and clocks (CLK)), which are the EMX, ESA and GFZ. A global validation using ~76 IGS stations was conducted over a different period. This was conducted in three stages, using the final EMX, final IGS and real-time IGS precise products. It was found that this approach can be used in real-time as well as in post processing without a significant difference between the results. Finally, this research has investigated the potential of using the PPP GLO for crustal motion separate to using the PPP GPS. Consistent horizontal station rates were found between PPP GPS and GDD GPS solutions. It was also concluded that it should be possible to use the PPP GLO for crustal motion, as an independent and precise solution. However, there was a bias in the orientation components of the estimated horizontal station rates between the PPP GLO and both other solutions (PPP GPS and GDD GPS), which was concluded to be a system bias rather than a strategy bias.
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Sampson, Russell D. "A comparison of photogrammetrically determined astronomical refraction of sunlight at high zenith angles with a ray-tracing computer model employing rawinsonde profiles." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/NQ60343.pdf.
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Isioye, Olalekan Adekunle. "An Investigation of Ground-Based GNSS Atmospheric Remote Sensing Techniques for Weather and Climate Monitoring in Nigeria." Thesis, University of Pretoria, 2017. http://hdl.handle.net/2263/60814.
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Radio signals from Global Navigation Satellite Systems (GNSS) satellites suffer delay
as they propagate through the atmosphere (neutral and non-neutral) and this delay is
partially driven by the water vapour content in the atmosphere. The delay component
due to the non-neutral atmosphere (ionosphere) is removed through the use of dual
frequency GNSS receivers. The main tropospheric parameter is the zenith
tropospheric (or total) delay (ZTD), which is a widely accepted parameter with which
to express the total delay in the signal from all satellites due to the neutral atmosphere.
The ZTD is a measure of the integrated tropospheric condition over a GNSS receiver
station. Accordingly, the integrated water vapour or precipitable water vapour (PWV)
can be obtained from a portion of the ZTD, if the atmospheric pressure and
temperature at the station are known through a concept often referred to as GNSS
meteorology. A number of GNSS receivers have been deployed for mapping and
geodetic services in Nigeria under the African reference frame initiative, but
unfortunately most of these receivers do not have co-located meteorological sensors
for pressure and temperature measurements. The prospect of incorporating GNSS
meteorology into weather monitoring and climate analysis in Nigeria was investigated
and is reported in this thesis. During the first task of this research, the technical basis
for ground-based GNSS meteorology was reviewed and the potentials and challenges of the approach to meteorological activities in Africa (including Nigeria) were
identified. Thereafter an in-depth analysis of the spatial and temporal variability of
ZTD over Nigeria for the period of 2010-2014 was conducted; results revealed weak
spatial dependence among the stations. Tidal oscillations (of the diurnal and semidiurnal
components) were observed at the GNSS stations of which the diurnal ZTD
cycles exhibited significant seasonal dependence, affirming the prospective relevance
of ground-based GNSS data to atmospheric studies. Also in this research, the
accuracy and suitability of using reanalysis datasets (ERA-Interim and NCEP/NCAR)
and a GPT2 neutral model in retrieving PWV from GNSS observations over Nigeria
were investigated; results showed that PWV can be retrieved to within a precision of
about 1 mm, provided GNSS-derived ZTD is of high precision. A fundamental issue
for GNSS meteorology in the West African region was yet again addressed in this
research; this is the development of a weighted tropospheric mean temperature model
for use in current and future GNSS meteorology activities in the region. A multitechnique
comparison of PWV estimates showed good agreement between GNSS
estimates and other techniques (i.e. the atmospheric infrared sounder, and ERAInterim
reanalysis). This result is suggestive of the potential of assimilating GNSS
atmospheric products into reanalysis and climate models. Diurnal and seasonal
variability of GNSS PWV estimates exhibits strong correlation with weather events
that influence the region (i.e. solar activity and rainfall events); this further
demonstrated the immense contribution of the approach to efficient weather
forecasting and climate monitoring for Nigeria.<br>Thesis (PhD)--University of Pretoria, 2017.<br>Geography, Geoinformatics and Meteorology<br>PhD<br>Unrestricted
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Combrink, Adriaan Zacharias Albertus. "Detection of atmospheric water vapour using the Global Positioning System / A.Z.A. Combrink." Thesis, North-West University, 2003. http://hdl.handle.net/10394/184.
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The Global Positioning System (GPS) has been used for more than a decade for the
accurate determination of position on the earth's surface, as well as navigation. The
system consists of approximately thirty satellites, managed by the US Department of
Defense, orbiting at an altitude of 20 200 kilometres, as well as thousands of stationary
ground-based and mobile receivers. It has become apparent from numerous studies that
the delay of GPS signals in the atmosphere can also be used to study the amosphere,
particularly to determine the precipitable water vapour (PWV) content of the troposphere
and the total electron content (TEC) of the ionosphere.
This dissertation gives an overview of the mechanisms that contribute to the delay of
radio signals between satellites and receivers. The dissertation then focuses on software
developed at the Hartebeesthoek Radio Astronomy Observatory's (HartRAO's) Space
Geodesy Programme to estimate tropospheric delays (from which PWV is calculated) in
near real-time. In addition an application of this technique, namely the improvement of
tropospheric delay models used to process satellite laser ranging (SLR) data, is
investigated. The dissertation concludes with a discussion of opportunities for future
work.<br>Thesis (M.Sc. (Physics))--North-West University, Potchefstroom Campus, 2004.
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Brown, Abel K. "A global GPS data reprocessing strategy: Implications for the reference frame, orbital solutions, and trends in zenith delay parameters and total column water vapor (1994 - 2011)." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1322627557.
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Abdo, Fakhri [Verfasser]. "Total endovascular therapy of aortoiliac aneurysms with preservation of internal iliac artery patency using Iliac Branch Device (Zenith® Branch, COOK MEDICAL INCORPORATED) / Fakhri Abdo." Berlin : Medizinische Fakultät Charité - Universitätsmedizin Berlin, 2020. http://d-nb.info/1206183241/34.
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Lo, Johnny Su Hau. "Estimation of tropospheric wet delay from GNSS measurements." Thesis, Curtin University, 2011. http://hdl.handle.net/20.500.11937/2289.
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The determination of the zenith wet delay (ZWD) component can be a difficult task due to the dynamic nature of atmospheric water vapour. However, precise estimation of the ZWD is essential for high-precision Global Navigation Satellite System (GNSS) applications such as real-time positioning and Numerical Weather Prediction (NWP) modelling.The functional and stochastic models that can be used for the estimation of the tropospheric parameters from GNSS measurements are presented and discussed in this study. The focus is to determine the ZWD in an efficient manner in static mode. In GNSS, the estimation of the ZWD is directly impacted by the choice of stochastic model used in the estimation process. In this thesis, the rigorous Minimum Norm Quadratic Unbiased Estimation (MINQUE) method was investigated and compared with traditional models such as the equal-weighting model (EWM) and the elevationangle dependent model (EADM). A variation of the MINQUE method was also introduced. A simulation study of these models resulted in MINQUE outperforming the other stochastic models by at least 36% in resolving the height component. However, this superiority did not lead to better ZWD estimates. In fact, the EADM provided the most accurate set of ZWD estimates among all the models tested. The EADM also yielded the best ZWD estimates in the real data analyses for two independent baselines in Australia and in Europe, respectively.The study also assessed the validity of a baseline approach, with a reduced processing window size, to provide good ZWD estimates at Continuously Operating Reference Stations (CORS) in an efficient manner. Results show that if the a-priori station coordinates are accurately known, the baseline approach, along with a 2-hour processing window, can produce ZWD estimates that are statistically in good agreement with the estimates from external sources such as the radiosonde (RS), water vapour radiometer (WVR) and International GNSS Service (IGS) solutions. Resolving the ZWD from GNSS measurements in such a timely manner can aid NWP model in providing near real-time weather forecasts in the data assimilation process.In the real-time kinematic modelling of GNSS measurements, the first-order Gauss- Markov (GM) autocorrelation model is commonly used for the dynamic model in Kalman filtering. However, for the purpose of ZWD estimation, it was found that the GM model consistently underestimates the temporal correlations that exist among the ZWD measurements. Therefore, a new autocorrelation dynamic model is proposed in a form similar to that of a hyperbolic function. The proposed model initially requires a small number of autocorrelation estimates using the standard autocorrelation formulations. With these autocorrelation estimates, the least-squares method is then implemented to solve for the model’s parameter coefficients. Once solved, the model is then fully defined. The proposed model was shown to be able to follow the autocorrelation trend better than the GM model. Additionally, analysis of real data at an Australian IGS station has showed the proposed model performed better than the random-walk model, and just as well as the GM model. The proposed model was able to provide near real-time (i.e. 30 seconds interval) ZTD estimates to within 2 cm accuracy on average.The thesis also included an investigation into the several interpolation models for estimating missing ZWD observations that may take place during temporary breakdowns of GNSS stations, or malfunctions of RS and WVR equipments. Results indicated marginal differences between the polynomial regression models, linear interpolation, fast-Fourier transform and simple Kriging methods. However, the linear interpolation method, which is dependent on the two most recent data points, is preferable due to its simplicity. This result corresponded well with the autocorrelation analysis of the ZWD estimates where significant temporal correlations were observed for at most two hours.The study concluded with an evaluation of several trend and smoothing models to determine the best models for predicting ZWD estimates, which can help improve real-time kinematic (RTK) positioning by mitigating the tropospheric effect. The moving average (MA) and the single-exponential smoothing (SES) models were shown to be the best-performing prediction models overall. These two models were able to provide ZWD estimates with forecast errors of less 10% for up to 4 hours of prediction.
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Ågren, Karin. "On the Formation and Structure of the Ionosphere of Titan." Doctoral thesis, Uppsala universitet, Institutionen för fysik och astronomi, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-172148.
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We present results on the ionospheric structure around Titan observed during numerous deep (<1000 km) flybys by the Cassini spacecraft. Our results are based on measurements by the radio and plasma wave science instrument, in particular the Langmuir probe. In addition, data from the magnetometer and electron spectrometer have contributed. The ionosphere of Titan is created when the atmosphere of the moon becomes ionised. There are several mechanisms that contribute to this, the most important of which are considered to be photoionisation by EUV from the Sun with associated photoelectron ionisation, and particle impact ionisation by electrons and ions from Saturn’s corotating magnetosphere. We investigate the influence of the solar zenith angle on the electron number density at the ionospheric peak. The results show on average four times more plasma on the dayside compared to the nightside, with typical densities of 2500 – 3500 cm-3 and 400 – 1000 cm-3, respectively. In a complementary study, we make a case study of a nightside flyby and show that the altitude structure of the deep ionosphere is reproducible by a simple electron impact ionisation model. Taken together, this leads to the conclusion that solar photons are the main ionisation source of the dayside ionosphere. However, magnetospheric particle precipitation also contributes and can explain the electron densities seen on the nightside. As Titan does not exhibit any large intrinsic magnetic field, the fact that it is embedded in the magnetosphere of Saturn means that the Kronian field drapes around the moon and gives rise to an induced magnetosphere. We show that there are currents of the order of 10 – 100 nA m-2 flowing in the ionosphere of the moon. Associated with the currents are perpendicular electric fields ranging from 0.5 to 3 µV m-1. Finally, we investigate measurements obtained during T70, the deepest Titan flyby performed to date. We show that there is a substantial amount of negative ions present below an altitude of 900 km. This confirms previous result by the electron spectrometer, showing negative ions at higher altitudes in Titan’s ionosphere.
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Nordblad, Erik. "Opening New Radio Windows and Bending Twisted Beams." Doctoral thesis, Uppsala universitet, Institutet för rymdfysik, Uppsalaavdelningen, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-158797.
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In ground based high frequency (HF) radio pumping experiments, absorption of ordinary (O) mode pump waves energises the ionospheric plasma, producing optical emissions and other effects. Pump-induced or natural kilometre-scale field-aligned density depletions are believed to play a role in self-focussing phenomena such as the magnetic zenith (MZ) effect, i.e., the increased plasma response observed in the direction of Earth's magnetic field. Using ray tracing, we study the propagation of ordinary (O) mode HF radio waves in an ionosphere modified by density depletions, with special attention to transmission through the radio window (RW), where O mode waves convert into the extraordinary (X, or Z) mode. The depletions are shown to shift the position of the RW, or to introduce RWs at new locations. In a simplified model neglecting absorption, we estimate the wave electric field strength perpendicular to the magnetic field at altitudes normally inaccessible. This field could excite upper hybrid waves on small scale density perturbations. We also show how transmission and focussing combine to give stronger fields in some directions, notably at angles close to the MZ, with possible implications for the MZ effect. In a separate study, we consider electromagnetic (e-m) beams with helical wavefronts (i.e., twisted beams), which are associated with orbital angular momentum (OAM). By applying geometrical optics to each plane wave component of a twisted nonparaxial e-m Bessel beam, we calculate analytically the shift of the beam's centre of gravity during propagation perpendicularly and obliquely to a weak refractive index gradient in an isotropic medium. In addition to the so-called Hall shifts expected from paraxial theory, the nonparaxial treatment reveals new shifts in both the transverse and lateral directions. In some situations, the new shifts should be significant also for nearly paraxial beams.
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Sliška, Andrej. "Zpřesňování astronomicko-geodetických tížnicových odchylek na vybraných bodech v Brně." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2018. http://www.nusl.cz/ntk/nusl-390195.
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The subject of this diploma thesis is refining of astrogeodetic vertical deflections, on selected points of networks AGNES and Veveří, in Brno. Calculations of the vertical deflections components are based on geodetic and astronomical measurements. Astronomical measurements are carried out by using the MAAS – 1 system, whose description is also the subject of this thesis.
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Ivins, Tiffany. "Localization of Open Educational Resources (OER) in Nepal: Strategies of Himalayan Knowledge-Workers." BYU ScholarsArchive, 2011. https://scholarsarchive.byu.edu/etd/2616.
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This dissertation examines localization of Open Educational Resources (OER) in Himalayan community technology centers of Nepal. Specifically, I examine strategies and practices that local knowledge-workers utilize in order to localize educational content for the disparate needs, interests, and ability-levels of learners in rural villages. This study draws on insights from non-formal education (NFE) stakeholders in Nepal, including government, UN, international and national NGOs, local knowledge-workers, and learners from different villages. I specifically focus on a sample of seven technology centers to better understand how localization is defined, designed, and executed at a ground level. I illuminate obstacles knowledge-workers face while localizing content and strategies to overcome such barriers. I conclude by offering key principles to support theory development related to OER localization. This study is anchored in hermeneutic inquiry and is augmented by interpretive phenomenological analysis and quasi-ethnographic research methods. This qualitative study employed interviews, focus group discussions, observations, and artifact reviews to identify patterns of localization practices and themes related to localization of critical content in Himalayan community technology centers of Nepal. This dissertation provides valuable evidence not only why localization matters (a statement that has been hypothesized for the past decade); but also provides proof of how localization is executed and concrete ways that localization could be improved in order for OER to reap efficacious learning gains for more rural people in developing countries and in other rural communities across the globe. The full text of this dissertation may be downloaded for free from http://etd.byu.edu/
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Nevala, T. (Terhi). "Endovascular treatment of an abdominal aortic aneurysm:mid-term results and management of a type II endoleak." Doctoral thesis, University of Oulu, 2010. http://urn.fi/urn:isbn:9789514261343.
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Abstract
Endovascular aneurysm repair (EVAR) is a minimally invasive alternative to open surgery to exclude an abdominal aortic aneurysm from the circulation to avert a rupture. The aim of this thesis was to evaluate the early and mid-term results of EVAR using the Zenith® stent-graft (Cook Inc, Bloomington, IN, USA) in asymptomatic and symptomatic abdominal aortic aneurysm (AAA) patients in three Finnish university hospitals. Furthermore, the aim was to study whether preoperative embolization of the inferior mesenteric artery (IMA) before EVAR decreases the incidence of a type II endoleak or has an effect on the aneurysm sac shrinkage. Finally, the results after secondary interventions for a type II endoleak were evaluated.
Two hundred six patients underwent elective endovascular repair of an intact AAA. The use of the Zenith® stent-graft was associated with good early and mid-term results. The thirty-day mortality rate (2.9%) was in accordance with other EVAR studies. Only one late aneurysm-related death occurred in this series, whilst no patients died of a late aneurysm rupture. No stent-graft migrations or fractures were observed. Endoleak, defined as persistent blood flow outside the graft and within the aneurysm sac, remains a long-term problem with EVAR. The overall endoleak incidence was 34.6%. A type II endoleak (retrograde perfusion via aortic side branches) occurred in 52 patients (25.4%).
EVAR was performed for 14 patients with a symptomatic, unruptured AAA. The median delay from admission to intervention was 4 days. EVAR of a symptomatic, unruptured AAA was associated with a favourable outcome even in patients with a very high operative risk. There were no perioperative deaths.
Altogether forty patients treated at Kuopio University Hospital had a patent IMA on preoperative computed tomography (CT) and were treated successfully with coil embolization before EVAR. Thirty-nine patients who underwent EVAR at Oulu University Hospital without preoperative embolization of a patent IMA served as a control group. Preoperative coil embolization of the IMA significantly reduced the incidence of type II endoleaks after EVAR, but the present study failed to show any influence on late postoperative aneurysm sac shrinkage.
Overall, 14 patients underwent a secondary intervention to repair the type II endoleak. Ten patients had transarterial embolization and four patients had translumbar embolization. The results were unsatisfactory; clinical success after the first secondary intervention was achieved in only two patients in the transarterial embolization group and three patients in the translumbar embolization group. These results seem to favour direct translumbar embolization rather than transarterial embolization.
In conclusion, EVAR with the Zenith® stent-graft is effective in excluding AAAs from the circulation and is associated with good mid-term results.
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Carlos, Francisco. "The Prevalence of Maxillary Altered Passive Eruption in a Dental School Population." VCU Scholars Compass, 2010. http://scholarscompass.vcu.edu/etd/2197.
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AIM: The aim of this investigation is to determine the prevalence of maxillary altered passive eruption in a dental school population. METHODS: 100 subjects were examined clinically and had models fabricated of their maxilla. Demographic, periodontal, cast measurements were recorded for each subject. Demographic variables recorded included age, gender, and ethnicity, history of orthodontic treatment, presence of incisal /occlusal wear, appearance of gingival excess, and presence of gingival asymmetry. Measurements made on cast included clinical crown length, clinical crown width, papillary height, and distance from the lateral gingival zenith to the gingival aesthetic line. Clinical crown width-to-length ratio was calculated. These measurements were compared to previously published standards. RESULTS: 83% of the subjects had central incisors with a clinical W:L ratio greater than .80. Logistical regression analysis determined that subjects with central incisors with an appearance of gingival excess were more likely to have a clinical W:L ratio greater than .80 (P<.0007; OR=79). ANOVA demonstrated that clinical crown length had a statistically significant relationship with gender (P<.0001), tooth type (P<.0001) and biotype (P<0.0026). Clinical crown width and clinical crown W:L ratio had a statistically significant relationship with gender (P<0.0007, P<.0001) and tooth type (P<0.0026, P<.0001). The average clinical crown length was 0.5-1.5 mm shorter than established ideal measurements. CONCLUSION: 83% of the subject population had central incisors that displayed altered passive eruption. Subjects who exceeded the clinical W:L ratio of .80 were more likely to have been classified as having the appearance of gingival excess or “gummy smile”. Esthetic crown lengthening should be considered to achieve desired esthetics in these subjects.
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Kiroe, Anthony Joseph [Verfasser], Torben [Akademischer Betreuer] Schüler, and Johannes [Akademischer Betreuer] Böhm. "Optimization of Tropospheric Delay Retrieval from Numerical Weather Prediction Models and Assimilation of Zenith Path Delays from Surrounding Reference Stations / Anthony Joseph Kiroe. Universität der Bundeswehr München, Fakultät für Luft- und Raumfahrttechnik. Gutachter: Torben Schüler ; Johannes Böhm. Betreuer: Torben Schüler." Neubiberg : Universitätsbibliothek der Universität der Bundeswehr München, 2015. http://d-nb.info/1076513646/34.
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Kiroe, Anthony Joseph Verfasser], Torben [Akademischer Betreuer] [Schüler, and Johannes [Akademischer Betreuer] Böhm. "Optimization of Tropospheric Delay Retrieval from Numerical Weather Prediction Models and Assimilation of Zenith Path Delays from Surrounding Reference Stations / Anthony Joseph Kiroe. Universität der Bundeswehr München, Fakultät für Luft- und Raumfahrttechnik. Gutachter: Torben Schüler ; Johannes Böhm. Betreuer: Torben Schüler." Neubiberg : Universitätsbibliothek der Universität der Bundeswehr München, 2015. http://nbn-resolving.de/urn:nbn:de:bvb:706-4379.
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Torres, Tur Elías Torres Tur Elías Torres Tur Elías. "Zenithal light /." Barcelona : Coac, 2004. http://opac.nebis.ch/cgi-bin/showAbstract.pl?u20=8496185435.
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Ringar, Octave. "Utilisation des techniques avancées d’Emission / Réception multi-antennes pour une transmission optique large bande." Thesis, Limoges, 2015. http://www.theses.fr/2015LIMO0100/document.
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Les systèmes de communication FSO sont des candidats potentiels pour de solutions de transmission spatiale à large bande. C’est pourquoi la présente thèse s’inscrit dans une contribution d’une nouvelle architecture de réseau FSO dans le cas d’une liaison de communication entre un satellite géostationnaire et une station terrienne. Elle traite aussi de l’influence de l’angle zénithal sur la qualité de la liaison optique en raison de la variation de la scintillation due à la complexité de l’atmosphère. Nous avons établi un nouveau canal de communication tenant compte de la subdivision de l’atmosphère en deux grandes zones de turbulence. Pour améliorer la performance de la liaison, nous avons d’abord placé un relais AF optiques ente le satellite et la station terrienne, ensuite nous avons introduit un paramètre construit `a partir de valeurs : p et 1-p. Le paramètre p correspond au ratio de la distance entre la station terrienne et le relais sur la distance de 36 000 Km correspondant a` l’orbite GEO. Dans notre cas, le relais est placé a 1000 Km a l’exosphère, le paramètre p = 1/36 et enfin la technique de diversité spatiale est appliquée en réception. Les résultats de simulation ont confirmé que les architectures des systèmes proposés sont meilleures que les performances de liaisons optiques directes<br>Free space optical systems are potential candidates of large band spatial transmission solutions. In this thesis, FSO network architecture in the case of geo- stationary satellite to earth communication link is investigated and the influence of zenith angle on the quality of the link has been evaluated. Because of the variation of scintillation due to the complexity of the atmosphere, the optical space to earth communication link channel model has been developped. In order to overcome the main limitations of the prop- agation, optical relays with low earth orbit satellites and spatial diversity on earth could improve the link performance. To improve the link performance, an aggregated simulation model turbulence has been built based on parameters ”p” and ”1-p” introduced in the combined model a↵ecting the considered channels. The parameter ” p ” corresponds to the ratio of the distance from the earth to the relay over the total distance of 36 000Km. In the case of 1000 Km for a relay in the exosphere, p = 1/36. Simulation results show that the proposed network system architecture has outperformed the direct link performance
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Хоптар, Аліна Андріївна. "Томографія тропосфери на основі опрацювання даних мульти-GNSS спостережень". Diss., Національний університет "Львівська політехніка", 2020. https://ena.lpnu.ua/handle/ntb/56060.
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Sasyn, Jan. "Staniční testování Mobilního automatizovaného astronomického systému." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2013. http://www.nusl.cz/ntk/nusl-226224.
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Subject of this master´s thesis is a station testing of Mobile automated astronomical system No. 1 (MAAS – 1). This system is used for measurement of astronomical coordinates by measurments of the stars. This thesis is focused on impact of some systematic effects, especially effects of inaccurate input geographic coordinates to resulting coordinates.
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Galisi, Filho Jose. "A constelação do zenite : imaginação utopica e historica em Heiner Muller (anos setenta e oitenta)." [s.n.], 1995. http://repositorio.unicamp.br/jspui/handle/REPOSIP/270158.
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Orientador: Roberto Schwarz<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Estudos da Linguagem<br>Made available in DSpace on 2018-07-20T22:59:19Z (GMT). No. of bitstreams: 1
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Previous issue date: 1995<br>Resumo: O dramaturgo alemão Heiner Müller (Eppendorf, 1929 -) compreende o teatro como o "laboratório da imaginação social". Essa assertiva implica uma consideração e crítica de seus pressupostos materiais, do aparelho teatral como instituição e seus limites, avançando gradualmente até o Espírito da Época ("Zeitgeist"). Nesse sentido, a experiência dramatúrgica alude ao conjunto da experiência social como seu "órgão" de autoreflexividade democrática, não apenas como decalque do existente, mas como um instrumento de descoberta e extensão de suas possibilidades e do seu vir-a-ser, de suas reservas imaginárias. Em meio ao turbilhão de meios tecnológicos, o anacronismo da forma teatral permanece como uma das últimas formas de relação imediata de nossa espécie. A reflexão sobre o "texto" da História é, portanto, a matriz de seu projeto dramatúrgico e a maneira pela qual se tece representa a produção da própria subjetividade como uma consciência de si e dos estratos que compõe sua temporal idade impura; mas é também a produção de seu "inconsciente", de seus recalques e do esquecimento. O relógio da História, para Müller, corre em sentido inverso do presente até atingir a estrutura mitológica que "fecunda", por assim dizer, este texto. Equilibrando-se entre a reflexão histórica, saturada de presente e articulada numa complexa noção de material artístico como "fragmento sintético" - um trabalho sobre as fraturas, descontinuidades e imprecisões das obras do passado, sobre a "inércia" que se revela em sua traditio -, e a necessidade em "olhar no branco dos olhos da Historia", como entende a capacidade política em seu sentido pleno, além da gravitação das ideologias e da política como esfera da instrumentalidade e engenharia socialmente eficaz, o olhar de Müller para o zênite da História é a ruptura de sua continuidade, a primazia da visão epifânica que transfigura e intensifica seus significados. Para Müller, este instante não é produto do acaso mas, incorporando a noção de Carl Schmitt de' seu ensaio Hamlet ou Hécuba: a irrupção do tempo no jogo, a formação de uma constelação trágica pela irrupção do tempo empírico na cena. Essa intrusão implode a moldura formal, colocando em movimento camadas profundas da experiência histórica sob o chão do presente. A afirmação de um sujeito histórico universal nos ensaios produzidos por Heiner Müller durante os anos setenta e oitenta é também correlata de um conceito de experiência genuína ("autentische Erfahrung") no campo da arte. Entretanto, a ênfase na substancial idade desse sujeito não resiste muitas vezes ao próprio paradigma intelectual em que se move e à maneira pela qual se articula, desfazendo-se como fantasmagoria. Os anos Honecker (1971-1989) caracterizam-se por uma deslegitimação progressiva da RDA nos planos interno e externo. Essa perda de horizonte utópico ("Utopieverlust") traduziu-se, em parcela considerável da inteligência leal da RDA, por uma conversão de paradigma conceitual ("Paradigmawechsel"). O foco da crítica desvia-se do campo do socialismo real para o âmbito civilizatório. Como parte desse complexo, pode-se pensar a dramaturgia de Heiner Müller como um instante privilegiado da apropriação da Dialética do Esclarecimento (1947) na RDA, cujo impacto, embora tardio, foi decisivo nessa conversão. Antes de representar a recepção pontual de um livro. A Dialética do Esclarecimento parece oferecer anacronicamente as categorias práticas de uma experiência de secularização intelectual a toda uma geração, através da desilusão ("Enttãuschung") com um espaço político cada vez mais restrito e suplantado pelo gerenciamento tecnocrático da economia, depois do fechamento da fronteira em 1961. De modo mais atento, seria possível perceber na terminologia crítica de Müller a restauração de figuras típicas do pensamento vitalista alemão de fins do XIX, tangenciando muitas vezes um diagnóstico conservador de crítica à modernidade. Se a derrocada do socialismo não deixava outra alternativa senão o avanço civilizatório, o teatro tardio de Müller e sua reflexão invocam poderes elementares e um culto dionisíaco para conjurar o presente. Esse investimento semântico anacrônico é incompatível com o próprio caráter descontínuo de sua escrita, de sua fragmentação. Contabilizando também para si a vantagem de estar à margem do debate ideológico, a noção de experiência em Heiner Müller transita em um "jargão de autenticidade" (Adorno) que extropola do campo da crítica estética para implicar o conjunto da cultura como "corretivo" de suas reservas utópicas. Essa incongruência é o foco de minha análise<br>Abstract: Not informed.<br>Mestrado<br>Mestre em Teoria Literaria
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Jalovecký, Martin. "Analýza přesnosti výsledků astronomického určení polohy." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2012. http://www.nusl.cz/ntk/nusl-225609.
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This diploma thesis is focused on the analysis of results accuracy of astronomical positioning. It describes observation methods and the latest surveying systems used in geodetic astronomy. Further in the thesis there is the description of surveying system MAAS-1. Subject of the elaboration is the data obtained by measuring with this system. Testing is focused on digital camera. There is also an analysis of the results of geographical coordinates, depending on the accuracy of determining the angled pixel size and also on the accuracy of the input coordinates.
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Andersson, Hedvig, and Nicole Parmskog. "ZENIT: Internetförmedlad kognitiv beteendeterapi för bulimia nervosa och ätstörning utan närmare specifikation : en randomiserad kontrollerad studie." Thesis, Linköpings universitet, Institutionen för beteendevetenskap och lärande, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-119202.
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Syftet med föreliggande randomiserade kontrollerade studie var att undersöka effekten av internetadministrerad kognitiv beteendeterapi (iKBT) vid olika former av ätstörningsproblematik. Behandlingen pågick i åtta veckor och baserades på beteendeterapi (BT) med inslag av Acceptance and Commitment Therapy (ACT). Behandlingen inkluderade en skräddarsydd del som riktades mot vanliga komorbida tillstånd vid ätstörningar. 92 deltagare randomiserades till två grupper, en behandlingsgrupp (n = 46) och en kontrollgrupp (n = 46). Behandlingsgruppen som erhöll iKBT förbättrades signifikant på utfallsmått som avsåg att mäta ätstörningssymptom. På huvudutfallsmåtten BSQ respektive EDE-Q uppvisades signifikanta mellangruppsskillnader, kontrollerat för förmätning. Effektstorleken för mellangruppsskillnaden vad gäller EDE-Q var måttlig (d = 0.54) och för BSQ liten (d = 0.48). För de som fullföljde behandlingen var effektstorleken stor för EDE-Q (d = 0.98) och BSQ (d = 0.97). Andelen som betraktas blivit kliniskt signifikant förbättrade vid behandlingsslut varierade mellan 31.3 och 46.5 % beroende på vilka kriterier som avsågs. Detta var betydligt fler än för kontrollgruppen (9.5-26.1 %). På sekundära utfallsmått (PHQ-9, GAD-7, SWLS, QOLI) erhölls ej signifikanta skillnader mellan grupperna, kontrollerat för förmätningen, vid mätning direkt efter behandlingsavslut. Sammantaget visar resultaten att iKBT för ätstörningsproblem är lovande som behandlingsmetod. Långtidsuppföljningar och replikationsstudier behövs på området.
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Kämpe, Malin, and Peter Albertson. "Design for Manufacturing : för produktionsanpassad konstruktion på Volvo Aero." Thesis, Högskolan Väst, Avd för process- och produktutveckling, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:hv:diva-3288.
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Målet med examensarbetet var att skapa ett verktyg för insamling av erfarenhetsdata för produktutvecklingsprocessen. Den skall vara användbar för att bidra till ett systematiskt arbetssätt för produktionsanpassad konstruktion på Volvo Aero Corporation. Det skapade verktyget för insamlande av erfarenhetsdata skall bidra till att produktivitet och producerbarhet kan förbättras på kommande koncept och konstruktioner. En förstudie har genomförts på företaget under hösten 2010 vilket ligger till grund för det beskrivna problemet i examensarbetet. Arbetet avgränsades till att utveckla en struktur för hur metod och erfarenhet skall struktureras och en testversion av verktyget togs fram för utvärdering. Efter samråd med den handledande Verksamhetsutvecklingsgruppen, VU-gruppen, från avdelning 9931 Projekt-, Koncept- och Tillverkningsledning, beslutades att examensarbetet skulle avgränsas ytterligare till insamling av diametermått på komponenten Diffuser Case på Volvo Aero. Under arbetets gång har återkommande möten veckovis infunnit sig med den utvalda VU-gruppen där också chefen från avdelningen och handledaren från företaget medverkat. Utgångspunkten för verktygets skapande var nuvarande produktion och dess information som finns att tillhandahålla. Det Design for Manufacturing-verktyg som skapats i Microsoft Excel samlar information från flera olika system och källor på Volvo Aero och presenterar denna information på ett pedagogiskt vis. Verktygets struktur har genom samråd med utvald VU-grupp tagits fram och de 35 kolumner som finns att fylla på med information är indelade i tre olika grupper för att erhålla ett systematiskt och pedagogiskt upplägg: basfakta, duglighet och kostnad samt bearbetningstid. Genom denna indelning erhålls en stigande detaljeringsgrad från vänster till höger i verktyget som ett medel för användaren att skapa ett tydligt och strukturerat arbetsätt. Kunskap, information och data som insamlas representerar uppgifter om kravnummer företaget serieproducerar idag. Verktyget skall med tiden fyllas på med fler uppgifter från strategiskt utvalda komponenter vilka stämmer överens med den inriktning företaget valt att gå i utvecklingen av nya komponenter.<br>The purpose of the Bachelor’s Thesis was to create a tool for the gathering of experience data for the product development process. It should contribute to a systematic operation approach at Volvo Aero Corporation. It should also contribute to improve productivity and producibility on future concepts. The problem described in the Bachelor’s Thesis is based on a pre-study performed at the company during the autumn 2010. The general task was defined as develop a structure for re-use of manufacturing experience and to create a test version of the tool for evaluation. After consultation with the selected Business Development-group from department 9931 Project-, Concept- and Manufacturing-leaders, the task was limited to gathering information of diameter dimensions from the Diffuser Case component at Volvo Aero. The creation of the tool had its starting-point in current production and the information available there. The Design for Manufacturing-tool has been created in Microsoft Excel and it’s developed in a way making it possible to gather and present information from different systems and sources. The tool presents the information in a pedagogical way that makes it user-friendly. The structure of the tool has been developed in consultation with the Business Development-group and the 35 columns of information is classified in three different groups: basic facts, capability and cost, operation time. By this classification the information level of detail increases from left to right which enables a more structured and systematic way of working. The knowledge, experience and data gathered represent information about the requirements the company currently produces. Over time, the Design for Manufacturing-tool is to be filled with more information from strategically chosen components which coincide with the direction the company has chosen for the development of new components.
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García, Rada Domingo. "Historia de las Constituciones Nacionales, por el Dr. José Pareja Paz-Soldán. Graf. "Zenit". Lima. 1944, 224 págs." Pontificia Universidad Católica del Perú, 2013. http://repositorio.pucp.edu.pe/index/handle/123456789/115631.
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Oliveira, Robson Azevedo de. "Avaliação das correções do atraso zenital troposférico nas medições efetuadas por radares altimétricos na região Amazônica." Instituto Nacional de Pesquisas da Amazônia, 2015. http://bdtd.inpa.gov.br/handle/tede/2154.
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Previous issue date: 2015-07-31<br>Fundação de Amparo à Pesquisa do Estado do Amazonas - FAPEAM<br>Currently, the major errors in altimetry measure by sensors onboard satellites have been attributed to the propagation of the signal trough the dynamic atmosphere,which is divided between the ionosphere and the electrically neutral layer. This study aimed to evaluate the effects of the electrically neutral layer, consisting of troposphere, tropopause, stratosphere and part of stratopause, on signal of three satellites: ENVISAT, SARAL and Jason-2. The effect of tropospheric refraction can be modeled using in situ data from weather station, separating it into two parts: the delay due to the effect of dry gases and the delay due to the effect of water vapor, DTC and WTC, respectively. These corrections are considered as the most relevant ones, related to the study of inland waters. Errors in the continuity between correction data supplied by ECMWF model for the same orbit satellites have been detected, at some stations, indicating a non-homogeneity in corrections. Limitations in capturing the seasonality of WTC data in humid regions of the Amazon, featuring better results in regions with greater seasonal variation of moisture, aiming for the need for other sources of data, such as radiosondes for a better representation of the moisture profile of the atmosphere, by the meteorological model Saastamoinein have been observed. In addition, find mistakes that should not still in the current version of the GDR data were also observed in some sites studied in the Amazon. This fact stresses that it is need to pay more attention to the standardization of the data used in the various altimetry products.<br>Atualmente, os maiores erros nas medidas altimétricas realizadas por sensores a bordo de satélites são atribuídos à propagação do sinal pela atmosfera dinâmica, que compreende ionosfera e camada eletricamente neutra. Esse estudo objetivou avaliar e comparar os efeitos da camada eletricamente neutra, composta pela troposfera, tropopausa, estratosfera e parte da estratopausa, sobre os pulsos emitidos pelos radares altimétricos dos satélites ENVISAT, SARAL e Jason-2. O efeito da refração troposférica pode ser modelado, utilizando dados de estações meteorológicas in situ, separando-o em duas partes, o atraso devido ao efeito dos gases secos e o atraso devido ao efeito do vapor d’água, DTC (Dry Tropospheric Correction) e WTC (Wet Tropospheric Correction), respectivamente. Essas correções são consideradas as mais relevantes, no que se refere ao estudo de águas interiores. Observou-se a existência de uma descontinuidade entre dados da correção fornecidos pelo modelo ECMWF (European Center for Mediumrange Weather Forecast) para satélites de mesma órbita, em algumas estações, evidenciando a não-homogeneidade das correções utilizadas. Observou-se, também, que o modelo meteorológico de Saastamoinen apresentou limitações em captar a sazonalidade dos dados de WTC sobre regiões úmidas da Amazônia, apresentando melhores resultados em regiões com maior variação sazonal de umidade, apontando para a necessidade de outras fontes de dados, como radiossondagens para uma melhor representação do perfil de umidade da atmosfera. Além disso, erros que já não mais deveriam ser encontrados na atual versão dos registros de dados geofísicos GDR (Geophysical Data Records), ainda foram observados em alguns sítios estudados na Amazônia. Este fato sinaliza a necessidade de dedicar maior atenção à padronização dos dados utilizados nos diversos produtos altimétricos.
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Mondélus, Héloïse, and Anneli Densfelt. "Se din möjligheter istället för dina begränsningar!" Thesis, Malmö högskola, Lärarutbildningen (LUT), 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-29396.
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SammanfattningDetta examensarbete handlar om långtidssjukskrivna arbetslösa personer som har varit med i ett rehabiliteringsprojekt på Zenit Dialog AB i Hässleholm, detta är ett kunskapscenter inom arbetsliv, hälsa och lärande. Vårt syfte med arbetet är att undersöka på vilket sätt Zenits rehabilitering har påverkat långtidssjukskrivna arbetslösas möjligheter att återgå till arbete. Våra tre frågeställningar är följande:•På vilket sätt har rehabiliteringen påverkat individens personliga utveckling och hans/hennes framtida möjligheter på arbetsmarknaden? •Vad var det som gjorde att en del fick arbete medan andra förblev arbetslösa?•Hur skulle en professionell studie- och yrkesvägledning kunna vara till hjälp i Zenits arbete med långtidssjukskrivna arbetslösa?Metoden vi har valt är kvalitativ och vi har intervjuat sex personer, tre som har fått arbete efter avslutad rehabilitering och tre som fortfarande är långtidssjukskrivna arbetslösa. Vi har kunnat konstatera att den rehabiliteringshjälp som Zenit erbjuder till individer som är långtidssjukskrivna har en positiv effekt på dem. Rehabiliteringen i sig påskyndar och möjliggör en snabbare återgång till arbete och bättre hälsa. Även för de personer där rehabiliteringen inte direkt har resulterat i en återgång till arbete har det istället inneburit att dessa personer fått en bättre livskvalitet.
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Solís, Salazar Sofía Guadalupe. "La pintura de Nahum B. Zenil: identidad nacional e identidad sexual." Doctoral thesis, Universitat Autònoma de Barcelona, 2013. http://hdl.handle.net/10803/129508.
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Nahum B. Zenil es reconocido primordialmente por su obra pictórica elaborada durante la década de los ochenta y los noventa. La crítica y la historia del arte han demarcado las interpretaciones que hasta ahora han caracterizado a sus piezas en dos posturas disímiles: la paternalista noción de la confesión como la liberación de una opresión íntima y la satanización de la escatología y la exhibición del cuerpo. La presente investigación tiene como objetivo brindar argumentos teóricos que revivan el valor crítico de su obra en los términos que siguen: la reiteración de la cita homosexual en sus autorretratos fragmentan la relación entre la normatividad del género y la identidad nacional.
Para este propósito, esta tesis propone un marco metodológico que desglosa la lógica de la matriz heterosexual en sincronía con la construcción de la mexicanidad. Es decir, el aparato discursivo que fomenta la congruencia entre una identidad sexual en conjunto con la noción de pertenencia a una cultura y a un territorio. Este análisis va de la mano de la teoría de la performatividad de Judith Butler y los estudios profusos sobre el nacionalismo y la identidad homosexual en México de Carlos Monsiváis.<br>Nahum B. Zenil is recognized primarily for his paintings from the eighties and nineties. Art history and art criticism have circumscribed the interpretations that have characterized his pieces until the moment into two dissimilar stances: the paternalistic notion of confession as releasing an intimate oppression and the demonization of eschatology and exhibitionism of the body. This research aims to provide theoretical arguments to reinforce the critical value of his work in the following terms: the reiteration of homosexual citation in his self-portraits subverts the relationship between gender normativity and national identity.
For this purpose, this thesis proposes a methodological framework that breaks the logic of heterosexuality in synchrony with the construction of mexican identity. That is to say, the discursive apparatus that promotes congruence between sexual identity in conjunction with the notion of belonging to a culture and a territory. This analysis is developed under the parameters of performativity exposed by Judith Butler and the profuse studies on nationalism and homosexual identity in Mexico elaborated by Carlos Monsivais.
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Sapucci, Luiz Fernando [UNESP]. "Estimativa do vapor d'água atmosférico e avaliação da modelagem do atraso zenital troposférico utilizando GPS." Universidade Estadual Paulista (UNESP), 2001. http://hdl.handle.net/11449/88549.
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sapucci_lf_me_prud.pdf: 2343034 bytes, checksum: cc6d3b5dd004f2733fa2b80a1318dcf6 (MD5)<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>O posicionamento com GPS (Global Positioning System), consiste basicamente na determinação de distâncias entre satélites e receptores, obtidas por meio de observações de sinais de rádio-freqüência. Entre os vários erros que estão presentes nessas observações, encontra-se o atraso dos sinais causado pela influência do vapor d’água atmosférico. Depois de minimizados os demais erros, o atraso troposférico pode ser estimado a partir das observações GPS. Estas estimativas, além de serem utilizadas para avaliar os modelos que tratam os efeitos da troposfera, podem ser convertidas em estimativas do vapor d’água integrado na atmosfera (IWV-Integrated Water Vapor). Para essa conversão, utiliza-se uma relação entre essas quantidades baseada na temperatura média da coluna vertical troposférica. Este trabalho tem por objetivo apresentar a aplicação do GPS na quantificação do vapor d’água atmosférico e uma metodologia para avaliar a modelagem do atraso zenital troposférico. Para isso, campanhas de radiossondagens e coletas simultâneas de observações GPS foram realizadas. Os resultados, na estimativa do vapor d‘água atmosférico, apresentaram boa compatibilidade com os valores fornecidos pelas radiossondas (EMQ de 2 kg/m2), e são similares aos valores encontrados na literatura. Quanto à avaliação da modelagem troposférica, os resultados indicam que a metodologia proposta apresentou-se adequada.<br>The GPS (Global Positioning System) positioning basically consists on determining the distances between satellites and receivers that are obtained by observing radio-frequency signals. There are several errors present in these observations. Among them we can find the delay of those signals caused by atmospheric water vapor. The tropospheric delay can be estimated by GPS observations processing after minimizing other errors. These estimates can be used to evaluate the models that attempt to reduce the tropospheric effects and may also be transformed into estimates of integrated water vapor (IWV). In this transformation is used a relationship between the delay and IWV values based on the tropospheric mean temperature. The main aims of this work are to present the GPS application related to atmospheric water vapor quantification and to propose a methodology to evaluate the zenithal tropospheric delay modeling. Launching radiosonde campaigns with simultaneous collections of GPS observations were accomplished. The results obtained by comparison the IWV values derived by GPS and radiosondes presented good compatibility (EMQ 2 kg/m2), which are similar to those found in the literature. The results supplied in the evaluation of tropospheric models indicated that the proposed methodology is adequate.