• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 246
  • 157
  • 110
  • 32
  • 29
  • 27
  • 11
  • 6
  • 6
  • 6
  • 3
  • 3
  • 3
  • 2
  • 1
  • Tagged with
  • 739
  • 248
  • 202
  • 134
  • 100
  • 85
  • 78
  • 66
  • 63
  • 58
  • 54
  • 41
  • 40
  • 36
  • 35
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
261

Textilskåp med fuktstyrning

Broström, Tor, Borgö, Louise, Thulin, Christine January 2010 (has links)
The objective of the present project was to develop and evaluate a solution forstorage of textiles in humid indoor environments, in this case churches. The proposed solution is based on creating a microclimate in the storage cabinets separated from the rest of the building. The cabinets were made air tight and insulated. With the use of a simple control system for conservation heating, the relative humidity can be kept below dangerous levels. The project comprises development and evaluation of textile cabinets in three churches on Gotland, Sweden. Measurements over one year show that cabinets with climate control are a simple and reliable method to prevent mould growth. Overall, the control systems have worked according to expectations. The relative humidity and temperature in the cabinets was maintained within a safe interval.
262

Herd investigations on sperm production in boars, and sow fertility under tropical conditions - with special reference to season, temperature, and humidity /

Suriyasomboon, Annop, January 2005 (has links) (PDF)
Diss. (sammanfattning) Uppsala : Sveriges lantbruksuniversitet, 2005. / Härtill 3 uppsatser.
263

Nasal mucosal reactivity after long-time exposure to building dampness /

Rudblad, Stig, January 2004 (has links)
Diss. (sammanfattning) Stockholm : Karol. inst., 2004. / Härtill 5 uppsatser.
264

Bryophytes on boulders : diversity, habitat preferences and conservation aspects /

Weibull, Henrik, January 1900 (has links) (PDF)
Diss. (sammanfattning) Uppsala : Sveriges lantbruksuniv. / Härtill 4 uppsatser.
265

Adsorption of moisture and indoor pollutants on a mixed-adsorbent /

Lee, Song-Yng, January 1997 (has links)
Thesis (Ph. D.)--University of Missouri-Columbia, 1997. / Typescript. Vita. Includes bibliographical references (leaves 115-119). Also available on the Internet.
266

Adsorption of moisture and indoor pollutants on a mixed-adsorbent

Lee, Song-Yng, January 1997 (has links)
Thesis (Ph. D.)--University of Missouri-Columbia, 1997. / Typescript. Vita. Includes bibliographical references (leaves 115-119). Also available on the Internet.
267

Optical fiber humidity sensor based on evanescent wave scattering

Xu, Lina. January 2004 (has links)
Thesis (M.S.) -- Mississippi State University. Department of Physics and Astronomy. / Title from title screen. Includes bibliographical references.
268

A mesoscale investigation of the sea breeze in the Stellenbosch winegrowing district

Du Preez, Chrisna Barbara. January 2007 (has links)
Thesis (M.Sc.)(Meteorology)--University of Pretoria, 2007. / Includes summary. Includes bibliographical references. Available on the Internet via the World Wide Web.
269

Medida da umidade do solo com sonda de neutrons

FALLEIROS, MARCOS de C. 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:37:48Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T13:56:12Z (GMT). No. of bitstreams: 1 05379.pdf: 4344136 bytes, checksum: b82d5226e24d569d19317b8dc8a173fd (MD5) / Tese (Doutoramento) / IPEN/T / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
270

Microclima e características agronômicas em diferentes espaçamentos e populações na cultura do milho /

Gutierrez, Mariangela Alves. January 2010 (has links)
Orientador: Jairo Osvaldo Cazetta / Banca: Anice Garcia / Banca: Silvelena Vanzolini Segato / Banca: Rogério Farinelli / Banca: Domingos Fornasieri Filho / Resumo: Objetivou-se avaliar a influência do espaçamento entre linhas e da densidade populacional sobre componentes microclimáticos e características agronômicas da cultura do milho. O experimento foi conduzido na safra 2007/2008, em condições de campo, em Latossolo Vermelho distrófico típico, textura média, A moderado, em Monte Aprazível, SP. O delineamento experimental utilizado foi o DBC, com sete tratamentos e quatro repetições, totalizando 28 unidades experimentais. Os tratamentos consistiram dos espaçamentos entre linhas de 40, 60, 80, 100, 120, 140 e 160 cm, correspondentes às densidades populacionais de 125.000, 83.300, 62.500, 50.000, 41.666, 35.714 e 31.250 plantas/ha. As variáveis microclimáticas avaliadas foram: temperatura do ar e do solo, umidade do ar e do solo, radiação fotossinteticamente ativa (RFA), atividades enzimáticas microbianas do solo (urease, fosfatase e desidrogenase). As variáveis agronômicas avaliadas foram: estatura de plantas, altura de inserção da primeira espiga, número de espigas por planta, diâmetro do colmo, acamamento e quebramento de plantas, nº de grãos na primeira espiga, massa de grãos na primeira espiga, massa de mil grãos, índice de colheita, massa seca de folhas, caules e grãos, concentração de macronutrientes e micronutrientes em folhas, caules e grãos. Com a redução do espaçamento entre linhas, de 160 a 40 cm, houve aumento da umidade do ar e do solo, da radiação fotossinteticamente ativa interceptada, do índice de área foliar, da atividade as urease no solo, da altura das plantas, da altura de inserção da primeira espiga e diminuição de diâmetro do colmo, do número de grãos por fileira, do número de grãos por espiga, da massa de mil grãos, da temperatura máxima do ar e do solo, da área foliar média e da área foliar total da planta e da massa seca de folhas e de grãos por planta... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: The study aimed to evaluate the influence of row spacing and plant population on climatic components and agronomic variables of maize. The experiment was carried out in the agricultural year of 2007/2008 crop, under field conditions in a typical Oxisol, medium texture, moderate, in Monte Aprazível, SP. The experimental design was a complete randomized block, with seven treatments (row spacing) and four replications, totaling 28 experimental units. The following microenvironmental variables were evaluated: air and soil temperature, air and soil humidity, PHAR, soil microbial enzymatic activities (urease, phosphatase and dehydrogenase). The following Agronomic variables were evaluated: plant height, first ear height, number of ear per plant, stem diameter, lodging and breaking of plants, number of grains in the first spike, grain weight in the first spike, mass of thousand grain, yield index, dry mass of leaves, stems and grains, micronutrients and macronutrients in leaves, stems and grains. With the reduction in spacing, from 160 to 40 cm, observed an increase of air and soil humidity, intercepted PHAR, the leaf area index, the urease activity in soil, plant height, height insertion of the first spike and decreased stem diameter, number of kernels per row, the number of grains per spike, thousand grain mass, the maximum air and soil temperature, the average leaf area and leaf area plant and dry mass of leaves and seeds per plant. With the increased spacing of 40-100 cm we observed increase in minimum air temperature. With the increased spacing of 100-160 cm decreased the minimum air temperature. The reduction in spacing did not influence the activities of phosphatase and dehydrogenase in the soil, the number of spikes per plant, harvest index and stem dry mass. The plant height increased with increasing PAR and LAI. / Doutor

Page generated in 0.0721 seconds