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Wei, Z. (author)
Photoinduced charge transfer (CT) is a fundamental photophysical process that prevails in nature but also plays a pivotal role in various technological fields. This thesis describes spectroscopic studies on photoinduced CT in donor-bridge-acceptor (DBA) systems and their derivatives. Throughout this work, we employ femtosecond transient...
doctoral thesis 2023
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Wei, L. (author)
<b>Chapter 1</b> is the introduction, which presents thestate of the art in synthesis and application of these, in fact, bi-functionalmaterials for sorption enhanced CO<sub>2</sub> methanation.</p><p class="MsoNormal" style="text-indent:12.5pt">    In <b>Chapter 2</b>, zeolite 13X and 5A supported...
doctoral thesis 2022
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Wei, X. (author)
This thesis addresses new methods and applications of ptychography which is a scanning Coherent Diffraction Imaging(CDI) method for reconstructing a complex valued object function from intensity measurements recorded in the Fraunhofer or Fresnel diffr- action region. The technique provides a solution to the so-called 'phase problem' and is found...
doctoral thesis 2022
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Wei, L. (author)
Excessive fluoride (F¯) in drinking water due to natural and anthropogenic activities is a serious health hazard affecting humans worldwide. Groundwater is the major and preferred source of drinking water, also in developing countries. The removal of the excess F<sup>-</sup> from groundwater prior to drinking is important in terms of protection...
doctoral thesis 2021
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Wei, P. (author)
Excess sludge handling is as important as treating the wastewater in determining the operational performance and costs in modern municipal wastewater treatment plants (WWTPs). In practice, excess sludge handling is widely implemented using anaerobic digestion (AD), in which the organic matter inside the sludge is not only stabilised and partly...
doctoral thesis 2021
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Wei, D. (author)
The microscopicworld is surprisingly busywith swimming micro-organisms. In a droplet of pondwater, there can be tens of thousands of microbes. They are predators and preys, producers and consumers, and they formthe bottom levels of the ecology of our world. The swimming micro-organisms can be in general classified into prokaryotes and eukaryotes...
doctoral thesis 2020
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Wei, L. (author)
doctoral thesis 2018
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Wei, Z. (author)
This dissertation aims to gain a better understanding of the dynamic wheel-rail interaction at crossings, including characterizing the wheel-rail contact behavior, evaluating the performance of crossings under traffic loads and monitoring the health condition of the structure. The first part of this dissertation focuses on an in-depth analysis...
doctoral thesis 2018
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Wei, X. (author)
Estuaries are important ecosystems accommodating a large variety of living species. Estuaries are also important to people by their demand of freshwater for drinking, irrigation, and industry. Due to natural changes and human activities, the estuarine water quality, influenced by both salinity and turbidity (the cloudiness or haziness of water),...
doctoral thesis 2017
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Wei, C. (author)
Multi-robot teams have potential advantages over a single robot. Robots in a team can serve different functionalities, so a team of robots can be more efficient, robust and reliable than a single robot. In this dissertation, we are in particular interested in human level intelligent multi-robot teams. Social deliberation should be taken into...
doctoral thesis 2015
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Wei, Y. (author)
The most important characteristics of the outfitting processes in shipbuilding are: 1. The processes involve many interferences between yard and different subcontractors. In recent years, the use of outsourcing and subcontracting has become a widespread strategy of western shipyards. There exists not only the vertical relationship between a yard...
doctoral thesis 2012
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Wei, Yan (author)
doctoral thesis 2012
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Wei, Y. (author)
doctoral thesis 2012
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Wei, J. (author)
High-precision manipulation of small-size objects is an attractive and challenging topic for both industrial production and fundamental scientific research. The capability of monitoring micro-samples during handling is essential to the accuracy and efficiency of a handling system for both liquid and solid samples. When handling liquid samples...
doctoral thesis 2010
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Wei, W. (author)
doctoral thesis 2008
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Wei, X. (author)
We present a three-dimensional model based on the finite element method for solving the time-harmonic Maxwell equation in optics. It applies to isotropic or anisotropic dielectrics and metals, and to many configurations such as an isolated scatterer in a multilayer, bi-gratings and crystals. We shall discuss the applications of the model to high...
doctoral thesis 2006
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Wei, Zhi-Gang (author)
doctoral thesis 1998
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