E-Dissertationen: Auflistung E-Dissertationen nach Titel
Anzeige der Dokumente 975-994 von 1013
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Visual Odometry and Sparse Scene Reconstruction for UAVs with a Multi-Fisheye Camera System
Schneider, Johannes (2019-06-13)Autonomously operating UAVs demand a fast localization for navigation, to actively explore unknown areas and to create maps. For pose estimation, many UAV systems make use of a combination of GPS receivers and inertial ... -
Visual Place Recognition in Changing Environments
Vysotska, Olga (2019-10-10)Localization is an essential capability of mobile robots and place recognition is an important component of localization. Only having precise localization, robots can reliably plan, navigate and understand the environment ... -
Visual SLAM from image sequences acquired by unmanned aerial vehicles
Steffen, Richard (2009-12-08)This thesis shows that Kalman filter based approaches are sufficient for the task of simultaneous localization and mapping from image sequences acquired by unmanned aerial vehicles. Using solely direction measurements to ... -
Visualisierung der Krankheitsentwicklung von Falschem Mehltau an Gurken durch Pseudoperonospora cubensis mittels Thermografie
Lindenthal, Miriam (2005)Der Epidemieverlauf des Falschen Gurkenmehltaus durch den obligat biotrophen Erreger <i>Pseudoperonospora cubensis</i> ist in starkem Maße von Umweltbedingungen abhängig. In der vorliegenden Arbeit ermöglichte die kleinräumige ... -
Vitamin D status and risk of anemia in patients with cardiovascular disease
Ernst, Jana Barbara (2018-03-26)Vitamin D deficiency and anemia are prevalent in patients with cardiovascular disease (CVD), and both are independent risk factors for increased morbidity and mortality. Epidemiological studies suggest an inverse association ... -
Vitamin K dependent γ-carboxylation in chronic kidney disease
Kaesler, Nadine (2014-01-10)Vascular calcification is present in atherosclerosis, ageing, chronic kidney diseases and diabetes and is strongly associated with an increased morbidity and mortality. Calcification of arteries occurs at the tunica intima ... -
VLBI observations of the Chang’E-3 lunar lander
Zhang, Zhongkai (2019-11-08)Diese Dissertation beschäftigt sich mit dem Konzept und der Analyse geodätischer VLBI-Beobachtungen des Chang’E-3-Mondlanders. VLBI ist eine hochpräzise Messtechnik, die in der Geodäsie, Astrometrie und bei Weltraumerkundungen ... -
Volatility of International Food Prices: Impacts on Resource Allocation and on Food Supply Response
Haile, Mekbib Gebretsadik (2015-06-08)Uncertainty is a quintessential feature of agricultural commodity prices. After about three decades of low and relatively stable price levels, we have experienced a dramatic rise and volatility in international food prices ... -
Vulnerability and adaptation to salinity intrusion in the Mekong delta of Vietnam
Binh, Nguyen Thanh (2015-06-29)The overall objective of this study is aimed at measuring the vulnerability of different social groups to salinity intrusion and related issues in coastal communities of the Mekong delta to improve our understandings on ... -
Wasserversorgung in Benin unter Berücksichtigung sozioökonomischer und soziodemographischer Strukturen: Analyse der Wassernachfrage an ausgewählten Standorten des Haute Ouémé
Schopp, Marion (2005)Ziel der Studie war die Untersuchung der Wassernachfrage auf lokaler Ebene. Um dieses Ziel zu erreichen, wurde zum einen die aktuelle Literatur diskutiert und zum anderen mit Hilfe empirischer Untersuchungen der „Wasserverbrauch“ ... -
Water availability and demand analysis in the Kabul River Basin, Afghanistan
Akhtar, Fazlullah (2017-08-08)Kabul River Basin (KRB), the most populated and highly heterogenic river basin of Afghanistan is the lifeline of millions of people in terms of supplying them with water for agricultural, municipal, and industrial as well ... -
Water Policy in South Africa: Effects, impacts, and the associated transaction costs in the Olifants Basin
Njiraini, Georgina Wambui (2016-06-24)South Africa as a water scarce country recognizes that it is no longer possible to augment existing water supplies. The country has therefore intensified efforts to implement its comprehensive National Water Act, which ... -
Water productivity in medium and small reservoirs in the Upper East Region (UER) of Ghana
Mdemu, Makarius Victor (2008)Improving water productivity (WP) is one important strategy for addressing future water scarcity, which is driven particularly by population growth and potential climate changes. Although an understanding of WP is required ... -
Water Quality in Multipurpose Water Systems, Sanitation, Hygiene and Health Outcomes in Ghana
Okyere, Charles Yaw (2018-03-29)This thesis examines the interlinkages between water quality, water use, sanitation and hygiene practices, other household characteristics and health outcomes in the context of multipurpose water systems in Ghana. ... -
Water Relations and Drought Tolerance of Different Zea mays Cultivars as Influenced by Nitrogen Form and Application
Bustamante Morales, Oscar Enrique (2009-11-12)This study was conducted to describe the physiological and morphological factors controlling the water use efficiency of maize (Zea mays L.) plants under drought conditions. The effects of localized ammonium (CULTAN) and ... -
A water storage reanalysis over the European continent: assimilation of GRACE data into a high-resolution hydrological model and validation
Springer, Anne (2019-04-18)<p>Continental water storage and redistribution within the Earth’s system are key variables of the terrestrial water cycle. Changes in water storage and fluxes may affect resources for drinking water and irrigation, lead ... -
Water, Sanitation and Agriculture: Linkages and Impacts on Health and Nutrition Outcomes in Rural Ethiopia
Usman, Muhammed Abdella (2017-08-03)In rural areas access to improved water supply is inadequate; consequently, most households rely on unimproved water sources, including unprotected wells/springs, streams, and surface water, which are easily polluted by ... -
Water, sanitation and agriculture linkages: impact on health and nutrition outcomes in peri-urban Gujarat, India
Vangani, Ruchi (2018-11-28)In the rural and peri-urban settings, where agriculture is one of the main sources of livelihood, the multi-purpose character of irrigation and drainage infrastructure creates several interlinks between water, sanitation ... -
The Water-Energy-Food Nexus in the Eastern Nile Basin: Transboundary Interlinkages, Climate Change and Scope for Cooperation
Paulos, Helen Berga (2019-02-04)With worldwide mounting pressure in the three highly interrelated resources of water, energy, and food (WEF) the 'nexus' concept has emerged as the best approach to address the complex and dynamic problem facing the three ... -
Weather Derivatives Revisited: A discourse on scalability, feasibility and Sustainability
Banerjee, Chirantan (2014-04-02)Over the last decade, weather derivatives have been offered in developing countries to mitigate weather risk in agriculture, but the demand remains low. Chapter One explains this demand anomaly by decomposing an insurance ...