Littérature scientifique sur le sujet « Plans on microfilm »
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Articles de revues sur le sujet "Plans on microfilm"
Mulauzi, Felesia, Phiri Bwalya, Chishimba Soko, Vincent Njobvu, Jane Katema et Felix Silungwe. « Preservation of audio-visual archives in Zambia ». ESARBICA Journal : Journal of the Eastern and Southern Africa Regional Branch of the International Council on Archives 40 (6 novembre 2021) : 42–59. http://dx.doi.org/10.4314/esarjo.v40i1.4.
Texte intégralMulauzi, Felesia, Phiri Bwalya, Chishimba Soko, Vincent Njobvu, Jane Katema et Felix Silungwe. « Preservation of audio-visual archives in Zambia ». ESARBICA Journal : Journal of the Eastern and Southern Africa Regional Branch of the International Council on Archives 40 (6 novembre 2021) : 42–59. http://dx.doi.org/10.4314/esarjo.v40i.4.
Texte intégralPellett, Norman E., Daphne Dippre et Ann Hazelrigg. « Coverings for Overwintering Container Grown Plants in Northern Regions ». Journal of Environmental Horticulture 3, no 1 (1 mars 1985) : 4–7. http://dx.doi.org/10.24266/0738-2898-3.1.4.
Texte intégralDOU, CH. « PHRASEOLOGICAL UNITS OF THE MICROFIELD “OLD AGE” IN RUSSIAN AND CHINESE ». Linguistics and Intercultural Communication 27, no 2_2024 (6 juin 2024) : 114–24. http://dx.doi.org/10.55959/msu-2074-1588-19-27-2-9.
Texte intégralPereira Souto, Álef Huan, Jefferson Costa e Silva, Marília Gabriella Alves Rodrigues Santos et Alfredo Gomes Neto. « Caracterização numérica e experimental de estruturas CSRR em antenas de microfita ». Revista Principia - Divulgação Científica e Tecnológica do IFPB 1, no 45 (12 juillet 2019) : 188. http://dx.doi.org/10.18265/1517-03062015v1n45p188-199.
Texte intégralPellett, N. E., et D. Heleba. « EFFECT OF PAPER MULCH ON WINTER TEMPERATURES OF CONTAINER-GROWN NURSERY PLANTS ». HortScience 27, no 11 (novembre 1992) : 1163f—1163. http://dx.doi.org/10.21273/hortsci.27.11.1163f.
Texte intégralČižmek, Lara, Mojca Bavcon Kralj, Rozelindra Čož-Rakovac, Dmitrii Mazur, Nikolay Ul’yanovskii, Marko Likon et Polonca Trebše. « Supercritical Carbon Dioxide Extraction of Four Medicinal Mediterranean Plants : Investigation of Chemical Composition and Antioxidant Activity ». Molecules 26, no 18 (20 septembre 2021) : 5697. http://dx.doi.org/10.3390/molecules26185697.
Texte intégralMohseni, Mehrnoosh, et Feizolah Jouzaryan. « Effects of Inflation and Employment Inverse on Economic Growth in Iran (1992-2012) ». Journal of Management and Accounting Studies 4, no 01 (20 juillet 2019) : 78–84. http://dx.doi.org/10.24200/jmas.vol4iss01pp78-84.
Texte intégralSelbonne, Stan, Loïc Guindé, François Causeret, Thierry Bajazet, Lucienne Desfontaines, Mathieu Duval, Jorge Sierra, Franck Solvar, Régis Tournebize et Jean-Marc Blazy. « Co-Design and Experimentation of a Prototype of Agroecological Micro-Farm Meeting the Objectives Set by Climate-Smart Agriculture ». Agriculture 13, no 1 (8 janvier 2023) : 159. http://dx.doi.org/10.3390/agriculture13010159.
Texte intégralSidorkova, Louisa R. « The microfield "Plants" in the semanticfield of the nature in Konstantin Paustovsky's works ». Tula Scientific Bulletin. History. Linguistics, no 2 (2022) : 82–90. http://dx.doi.org/10.22405/2712-8407-2022-2-82-90.
Texte intégralThèses sur le sujet "Plans on microfilm"
Ara?jo, Gilmara Linhares Ramos de. « Efeito da inclina??o do plano de terra para antenas de microfita multicamadas com elementos parasitas fractais ». Universidade Federal do Rio Grande do Norte, 2011. http://repositorio.ufrn.br:8080/jspui/handle/123456789/15363.
Texte intégralCoordena??o de Aperfei?oamento de Pessoal de N?vel Superior
This work presents the analysis of an antenna of fractal microstrip of Koch with dielectric multilayers and inclinations in the ground plane, whose values of the angles are zero degree (without inclinations), three, seven and twelve degrees. This antenna consists of three dielectric layers arranged vertically on each other, using feeding microstrip line in patch 1, of the first layer, which will feed the remaining patches of the upper layers by electromagnetic coupling. The objective of this work is to analyze the effects caused by increase of the angle of inclination of the ground plane in some antenna parameters such as return loss, resonant frequency, bandwidth and radiation pattern. The presented results demonstrate that with the increase of the inclination angle it is possible to get antennas with characteristics multiband, with bigger bandwidth, and improving the impedance matching for each case analyzed, especially the larger angle
Este trabalho apresenta a an?lise de uma antena de microfita fractal de Koch com multicamadas diel?tricas e inclina??es no plano de terra, cujos valores dos ?ngulos s?o zero grau (sem inclina??es), tr?s, sete e doze graus. Esta antena ? constitu?da por tr?s camadas diel?tricas dispostas verticalmente umas sobre as outras, utilizando alimenta??o por linha de microfita no patch 1, da primeira camada, que ir? alimentar os demais patches das camadas superiores por acoplamento eletromagn?tico. O objetivo deste trabalho ? analisar os efeitos causados pelo aumento do ?ngulo de inclina??o do plano de terra em alguns par?metros da antena, tais como perda de retorno, frequ?ncia de resson?ncia, largura de banda e diagrama de radia??o. Os resultados apresentados demonstram que com o aumento do ?ngulo de inclina??o ? poss?vel obter antenas com caracter?sticas multibanda, com maiores larguras de banda, al?m de melhoramento do casamento de imped?ncias para cada caso analisado, sobretudo os de maior ?ngulo de inclina??o
Andrade, Betoven Oliveira de. « Estudo de arranjos de antenas de microfita com Patch quase-fractal para comunica??es sem fio ». Universidade Federal do Rio Grande do Norte, 2014. http://repositorio.ufrn.br/handle/123456789/19935.
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Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES
Nesta disserta??o, s?o apresentadas duas antenas de microfita e dois arranjos para aplica??es em sistemas de comunica??o sem fio multibanda. Inicialmente, foi estudada uma antena e um arranjo linear constitu?do por dois elementos id?nticos ao da antena isolada. A forma de ambas as estruturas baseia-se na geometria fractal e tem comportamento de banda m?ltipla. Em seguida uma nova antena ? analisada e um novo arranjo igual ? estrutura inicial, mas com o plano de terra truncado, a fim de obter melhores larguras de banda e perda de retorno. Para alimentar as estruturas foi utilizada linha de transmiss?o de microfita. No projeto das estruturas planares utilizou-se o software HFSS para a simula??o. Em seguida foram constru?das e feitas medi??es dos par?metros eletromagn?ticos como imped?ncia de entrada e perda de retorno, usando o analisador vetorial de redes do laborat?rio de telecomunica??es da Universidade Federal do Rio Grande do Norte. Os resultados experimentais obtidos foram comparados com os simulados e mostraram que o primeiro arranjo melhorou a perda de retorno, fez surgir uma quarta banda de frequ?ncia e aumentou a diretividade em rela??o ? antena isolada. Os dois primeiros benef?cios n?o s?o comumente encontrados na literatura. Quanto ?s estruturas com planos de terra truncados, a t?cnica produziu um melhor casamento de imped?ncia e melhor largura de banda e perda de retorno em todas as bandas de frequ?ncia com rela??o ?s estruturas iniciais com planos de terra cheios. Al?m disso, estas estruturas apresentaram uma melhor distribui??o das bandas ao longo da faixa, o que pode facilitar um ajuste das mesmas para frequ?ncias espec?ficas. Deste modo, espera-se que as estruturas planares apresentadas neste trabalho, em especial os arranjos, possam ser adequadas a aplica??es espec?ficas em comunica??es sem fio, onde multibandas e sinais banda larga de transmiss?o s?o exigidos.
In this dissertation, are presented two microstrip antennas and two arrays for applications in wireless communication systems multiband. Initially, we studied an antenna and a linear array consisting of two elements identical to the patch antenna isolated. The shape of the patch used in both structures is based on fractal geometry and has multiband behavior. Next a new antenna is analyzed and a new array such as initial structure, but with the truncated ground plane, in order to obtain better bandwidths and return loss. For feeding the structures, we used microstrip transmission line. In the design of planar structures, was used HFSS software for the simulation. Next were built and measures electromagnetic parameters such as input impedance and return loss, using vector network analyzer in the telecommunications laboratory of Federal University of Rio Grande do Norte. The experimental results were compared with the simulated and showed improved return loss for the first array and also appeared a fourth band and increased directivity compared with the isolated antenna. The first two benefits are not commonly found in the literature. For structures with a truncated ground planes, the technique improved impedance matching, bandwidth and return loss when compared to the initial structure with filled ground planes. Moreover, these structures exhibited a better distribution of frequency, facilitating the adjustment of frequencies. Thus, it is expected that the planar structures presented in this study, particularly arrays may be suitable for specific applications in wireless communication systems when frequency multiband and wideband transmission signals are required.
Pereira, Cleidimar Garcia. « Análise no domínio espectral de microfitas excitadas por ondas planas ». Instituto Tecnológico de Aeronáutica, 2005. http://www.bd.bibl.ita.br/tde_busca/arquivo.php?codArquivo=137.
Texte intégralKačor, Jiří. « Podnikatelský záměr malého podniku ». Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2008. http://www.nusl.cz/ntk/nusl-221827.
Texte intégralBartoš, Michal. « Podnikatelský záměr malého podniku ». Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2009. http://www.nusl.cz/ntk/nusl-222237.
Texte intégralDušková, Ivana. « Podnikatelský záměr malého podniku ». Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2012. http://www.nusl.cz/ntk/nusl-223394.
Texte intégralPinheiro, Bruno de Melo. « Projeto de antenas multifuncionais integradas com superf?cies seletivas em frequ?ncia ». PROGRAMA DE P?S-GRADUA??O EM ENGENHARIA EL?TRICA E DE COMPUTA??O, 2016. https://repositorio.ufrn.br/jspui/handle/123456789/21974.
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Esse trabalho visa aplicar Superf?cies Seletivas em Frequ?ncia (FSS) em arranjos de antenas planares, propondo meios que tragam melhores resultados em termos de diretividade, ganho e largura de banda. Al?m desse estudo, tamb?m foi feito inicialmente um estudo das caracter?sticas de arranjos de antenas de microfita, acoplamento m?tuo entre elementos do arranjo, trucamento do plano de terra e seus poss?veis efeitos positivos nas caracter?sticas de radia??o da antena. Para realizar tal estudo, foram reproduzidos alguns estudos de antenas de microfita e arranjos de antena de microfita, com dois elementos tipo patch, onde foram feitos os estudos do truncamento diferenciado do plano de terra. Ap?s constatar o efeito desse estudo, foi feita a escolha dos par?metros ?timos para as caracter?sticas de radia??o da antena para que possam ser feitos testes com novas geometrias de FSS sobre a antena em estudo. Esse estudo foi realizado inicialmente por meio de simula??es com o aux?lio de softwares comerciais e em seguida foram constru?dos prot?tipos dos melhores resultados encontrados na simula??o, cujos resultados foram comparados com medi??es reais para comprovar sua utilidade em aplica??es reais.
This work aims to attribute the use of Frequency Selective Surfaces (FSS) together with planar antenna arrays, proposing ways to grant better results in terms of directivity, gain and bandwidth. In addition to that study it will also be made a study about the characteristics of the arrays of microstrip antennas, mutual coupling between the elements of the array, ground plane trunking, and its benefits for the for the radiation characteristics of the antenna. For the accomplishment of that study, some results for microstrip antennas and microstrip antenna arrays with two elements were reproduced, having the unusual ground plane trunking study in addition to that. As soon as its effects were verified, the optimal parameters for the radiation characteristics of the antenna were selected and applied, so the new geometry of FSS could start being proposed on that antenna. That initial study have been made with only simulations using a commercial software and this was followed by the fabrication of prototypes of the best results of the simulations. The prototypes were measured and their results were tested and verified to be useful for the real applications, by comparison with the simulated results.
Barreto, Edwin Luize Ferreira. « An?lise do acoplamento de estruturas fractais em antenas monopolo multi-banda para comunica??o sem fio ». PROGRAMA DE P?S-GRADUA??O EM ENGENHARIA EL?TRICA E DE COMPUTA??O, 2016. https://repositorio.ufrn.br/jspui/handle/123456789/22329.
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Este trabalho tem como objetivo principal realizar o estudo e an?lise de diferentes antenas planares de microfita, atrav?s do emprego de geometrias fractais no patch ressoador e da remo??o parcial do plano de terra com acoplamento. Recentes estudos mostram que as varia??es nas formas geom?tricas do patch da antena e do plano de terra produzem mudan?as na distribui??o da densidade de corrente da estrutura e consequentemente nos modos ressonantes e na polariza??o da antena. No desenvolvimento desta tese, apresenta-se uma nova antena fractal que utiliza a t?cnica de inser??o de fendas e aberturas de forma fractal no plano de terra e tamb?m descontinuidades no transformador ? de onda na linha de transmiss?o a fim de aumentar a largura de banda e alcan?ar comportamentos espec?ficos em aplica??es de banda de frequ?ncia. Emprega-se o substrato FR-4 com dimens?es de 85,0 x 85,0 x 1,57 mm?. Al?m disso, usam-se diferentes modos de casamento de imped?ncia na linha de alimenta??o de antena como CPW (Coplanar Wave Guide) e altera??es da largura da linha de transmiss?o, a fim de obter varia??o na distribui??o de corrente e, consequentemente, na largura de banda de resposta por imped?ncia para S11 ? -10dB para banda C (3.9 GHz - 6,2 GHz) e banda S (2,0 GHz - 4,0 GHz). Uma an?lise comparativa de desempenho para a linha de microfita e CPW foi realizada, obtendo-se para alguns casos antenas circularmente polarizadas. Boa concord?ncia foi obtida entre os resultados medidos e simulados.
This work has as main objective to carry out the study and analysis of different planar microstrip antenna, by employing fractal geometry in the resonator patch and partial removal of the ground plane with coupling. Recent studies show that variations in geometric shapes of the antenna and the ground plane generate changes in current density distribution of the planar structure and consequently the resonant modes and antenna polarization. In developing this thesis presents a new fractal antenna using the technique of insertion slots and fractal shaped defects (gaps) in the ground plane and discontinuities with ? wavelength transformer in the transmission line in order to increase the bandwidth and inserting in the feed line to reach specific behaviors in three frequency bandwidth applications. We used the FR-4 substrate with dimensions of 85.0 x 85.0 x 1.57 mm?. In addition, we used different modes of impedance matching in line antenna feed as CPW (Coplanar Wave Guide), to change the width of the transmission line in order to obtain a variation in the current distribution and hence the response bandwidth impedance to S11 ? -10dB for C band (3.9 GHz - 6.2 GHz) and S band (2.0 GHz - 4.0 GHz). A comparative analysis of cases with microstrip line and CPW was made, applications in this frequency range require preferably circularly polarized antennas. Good agreement was obtained between measured and simulated results.
Higgins, Kellina Leslie. « Effet de la végétation sur la variabilité de la profondeur de dégel à petite échelle dans un paysage de tourbières en forêt boréale dans les Territoires du Nord-Ouest ». Thèse, 2015. http://hdl.handle.net/1866/12562.
Texte intégralIn order to better understand the impacts of climate change on permafrost degradation, it is important to understand the influence of abiotic and biotic factors on permafrost dynamics. While studies allude to the effect of broad vegetation groups on permafrost dynamics at landscape-scale, the role vegetation plays in affecting the spatial variability of active-layer development on the scale of metres, as explored here, is largely unknown. The study was carried out in a boreal forest-peatland landscape in the discontinuous permafrost zone in the southern Northwest Territories (N61°18’, W121°18’). We examined the influence of the following vegetation characteristics on the spatial variability of thaw depth: tree density, shrub cover, leaf area index, and cryptogam presence (lichen and bryophyte). We found that greater tree density was associated with shallower thaw depths while shrub cover (<50cm height) had a negligible influence. Furthermore, thaw depth depended on the cryptogam species cover and microform. This research quantifies the impact of vegetation by strata on thaw depth and may ultimately serve to refine vegetation parameters in ecosystem models and land surface schemes as part of climate models.
Livres sur le sujet "Plans on microfilm"
Public Services Microfilm Liaison Group. Working Party. Microfilming of maps and plans : A report. 2e éd. Hatfield, Hertsfordshire : Cimtech (The National Centre for Information Media and Technology), 1985.
Trouver le texte intégralGreen, Dana Saintsbury. Masks & puppets [microform]. London : Studio Publications, 1987.
Trouver le texte intégralA, Mears James, dir. Plant taxonomic literature : Bibliographic guide. Cambridge, Eng : Chadwyck-Healey, 1989.
Trouver le texte intégralSaving and Sensible Architectural Bureau. Modern homes [microform] : A collection of forty designs of practical houses and cottages, costing from $700.00, upwards, all of which have been erected for the costs quoted. Cleveland : The Bureau, 1987.
Trouver le texte intégralShakespeare, William. King Richard III [microform] : A tragedy, in five acts ... as now performed at the Theatres-Royal, London. London : T. Dolby, 1987.
Trouver le texte intégralNew York (N.Y.). Board of Trade. A State naval militia [microform] : Report and bill approved by the New York Board of Trade and Transportation, December 12, 1888 : with "Memorandum of proposed plans for naval reserves" by Hon. W.C. Whitney, Secretary of the Navy, letter of Major-General John W. Schofield, U.S.A., letter of Engineer-in-Chief George W. Melville, U.S.N. [S.l : s.n.], 1987.
Trouver le texte intégralLesson Plans in Grammar [microform]. Creative Media Partners, LLC, 2021.
Trouver le texte intégralQuebec (Province) Dept of Agriculture et Georges B. 1889 Maheux. Protection of Plants [microform]. Creative Media Partners, LLC, 2021.
Trouver le texte intégralF. B. (Frederick Brotherton) Meyer. Expository Preaching Plans and Methods [microform]. Creative Media Partners, LLC, 2021.
Trouver le texte intégralFyles, Faith 1875-1961, et Dominion Experimental Farms and Stati. Principal Poisonous Plants of Canada [microform]. Creative Media Partners, LLC, 2021.
Trouver le texte intégralChapitres de livres sur le sujet "Plans on microfilm"
Wilson, Katherine C. « Melodrama Remediated ». Dans Advances in Human and Social Aspects of Technology, 190–208. IGI Global, 2014. http://dx.doi.org/10.4018/978-1-4666-6002-1.ch010.
Texte intégralSantos, Ana Paula Bezerra dos, Pedro Carlos de Assis Júnior, Elder Eldervitch Carneiro de Oliveira, Rodrigo César Fonseca da Silva et Marcelo da Silva Vieira. « MODELAGEM DE FILTRO DE MICROFITA COM GEOMETRIAS DIVERSAS E DEFORMAÇÕES NO PLANO TERRA COM O PROGRAMA DE SIMULAÇÕES DE ONDA COMPLETA ». Dans Produção Científi ca e Experiências Exitosas na Educação Brasileira 5, 57–65. Atena Editora, 2019. http://dx.doi.org/10.22533/at.ed.5561920086.
Texte intégralActes de conférences sur le sujet "Plans on microfilm"
Cruz, Rossana, Tarcílio Cavalcanti da Silva, Paulo Silva et Adaildo D´Assunção. « Caracterização de Filtros em Linhas de Microfita com Planos de Terra Fractais ». Dans XXVI Simpósio Brasileiro de Telecomunicações. Sociedade Brasileira de Telecomunicações, 2008. http://dx.doi.org/10.14209/sbrt.2008.43173.
Texte intégralBezerra, Joel Muniz, Flávio Pillon Richards et Cynthia Junqueira. « Antenas Espirais de Faixas Largas Impressas em Microfita e Montadas sobre Planos de Terra ». Dans XVIII Simpósio Brasileiro de Telecomunicações. Sociedade Brasileira de Telecomunicações, 2000. http://dx.doi.org/10.14209/sbrt.2000.5250246.
Texte intégralBarro, Vitor, et Sandro Silva. « Projeto e Análise de Filtros em Microfita a partir de um Plano de Terra Inclinado ». Dans XXIX Simpósio Brasileiro de Telecomunicações. Sociedade Brasileira de Telecomunicações, 2011. http://dx.doi.org/10.14209/sbrt.2011.114.
Texte intégralFreitas, João, Antônia Melquiades, André Lima et Otávio Lavor. « Análise da influência do ressoador quadrado em antenas de microfita com plano de terra truncado ». Dans XXXVI Simpósio Brasileiro de Telecomunicações e Processamento de Sinais. Sociedade Brasileira de Telecomunicações, 2018. http://dx.doi.org/10.14209/sbrt.2018.312.
Texte intégralAndrade, Humberto Dionísio de, Bruno Rodrigues Fialho, Emerson Nunes dos Santos, Francisco Monteiro Sobrinho, Isaac B. T. da Silva, Leonardo Oliveira de Sousa et Nickson S. Oliveira Lopes. « Estudo da Aplicação da Simetria de Penrose no Plano de Terra das Antenas de Microfita ». Dans XLI Simpósio Brasileiro de Telecomunicações e Processamento de Sinais. Sociedade Brasileira de Telecomunicações, 2023. http://dx.doi.org/10.14209/sbrt.2023.1570923561.
Texte intégralBessa, Carlos, Maurício Weber, Rui Benjó et Ronaldo Santos. « Projeto de um filtro passa-baixas utilizando cortes no plano terra em uma linha de microfita ». Dans XXII Simpósio Brasileiro de Telecomunicações. Sociedade Brasileira de Telecomunicações, 2005. http://dx.doi.org/10.14209/sbrt.2005.1198.
Texte intégralAl-Khaldy, Meshal, Dhari Al-Saadi, Mohammad Al-Ajmi, Mohammad Al-Banai, Ibrahim Elafify, Fajar Jaber, Rashed Al-Dakheel et al. « Production Casing Regains Integrity by Repairing Shallow Leak with Microfine Cement ». Dans SPE/IADC Middle East Drilling Technology Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/202114-ms.
Texte intégralAraújo, Gilmara, et Sandro Silva. « Efeito da Variação da Largura de Banda com a Inclinação do Plano de Terra em uma Antena de Microfita com Elementos Parasitas Fractais ». Dans XXIX Simpósio Brasileiro de Telecomunicações. Sociedade Brasileira de Telecomunicações, 2011. http://dx.doi.org/10.14209/sbrt.2011.113.
Texte intégralZhou, Xiao-peng, David J. Kukulka, Jing Li, Jian-Jun Sun et Wei Li. « Condensation Heat Transfer Characteristics on the Outside of Horizontal Smooth, Herringbone and Enhanced Surface 1EHT Tubes ». Dans ASME 2015 13th International Conference on Nanochannels, Microchannels, and Minichannels collocated with the ASME 2015 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/icnmm2015-48196.
Texte intégral