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Jin, J. (author)
Severe dust storms present great threats to the environment, property and human health over the areas in the downwind of arid regions. Several dynamical dust models have been developed to predict the dust concentrations in the atmosphere. Currently, the accuracy of these models is limited mainly due to the imperfect modeling of dust emissions....
doctoral thesis 2020
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An, Tao (author), Mohan, Prashanth (author), Zhang, Yingkang (author), Frey, Sándor (author), Yang, J. (author), Gabányi, Krisztina (author), Gurvits, L. (author), Paragi, Zsolt (author), Perger, Krisztina (author), Zheng, Zhenya (author)
Blazars are a sub-class of quasars with Doppler boosted jets oriented close to the line of sight, and thus efficient probes of supermassive black hole growth and their environment, especially at high redshifts. Here we report on Very Long Baseline Interferometry observations of a blazar J0906 + 6930 at z = 5.47, which enabled the detection of...
journal article 2020
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Abdul Madhar, S. (author), Mraz, Petr (author), Rodrigo Mor, A. (author), Ross, R. (author)
Corona is one of the most common forms of partial discharge (PD) occurring in high voltage (HV) energy systems. The corona mechanism in air is not exclusive to the field of energy applications but has also been widely studied by physicists to theorize mechanisms of charge transfer during the different phases of gas discharge. The phases of the...
journal article 2020
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Han, Jing (author), Chepuri, Sundeep Prabhakar (author), Leus, G.J.T. (author)
Orthogonal signal-division multiplexing (OSDM) has recently emerged as a promising modulation scheme for underwater acoustic communications. Although providing more flexibility in system design, it suffers from a special interference structure over time-varying channels. To enable reliable OSDM equalization, we propose a joint channel impulse...
journal article 2020
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Lai, J. (author), You, X. (author), Dugulan, A.I. (author), Huang, B. (author), Liu, J. (author), Maschek, M. (author), van Eijck, L. (author), van Dijk, N.H. (author), Brück, E.H. (author)
The first-order magneto-elastic transition in the Mn–Fe–P–Si alloys can be tailored by vanadium substitution. Alloys with a suitable V substitution provide an excellent magnetocaloric effect with minor hysteresis in low magnetic fields up to 1.2 T. Mössbauer measurements show that the hyperfine field is reduced by V substitution. Neutron...
journal article 2020
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Merino Martinez, R. (author), Luesutthiviboon, S. (author), Zamponi, Riccardo (author), Rubio Carpio, A. (author), Ragni, D. (author), Sijtsma, P. (author), Snellen, M. (author), Schram, Christophe (author)
In this paper, the performance of four acoustic imaging methods: conventional frequency domain beamforming (CFDBF), functional beamforming (FUNBF), enhanced high resolution CLEAN–SC (EHR–CLEAN–SC) and generalized inverse beamforming (GIBF), is investigated in terms of accuracy and variability. Three experimental test cases are considered: 1)...
journal article 2020
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Du, Shuoran (author), Hamdi, M. (author), Sue, Hung Jue (author)
Mar is a type of subtle surface damage caused by a sliding object barely visible to human eyes. This minor damage phenomenon has rarely been systematically studied. Significant research efforts for the fundamental understanding of mar behavior in polymers are still needed. In this study, the mar behavior of a series of model amorphous...
journal article 2020
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Deng, Q. (author), Lopes Dos Santos, B.F. (author), Curran, R. (author)
This paper presents a practical dynamic programming based methodology to optimize the long-term maintenance check schedule for a fleet of heterogeneous aircraft. It is the first time that the long-term aircraft maintenance check schedule is optimized, integrating different check types in a single schedule solution. The proposed methodology...
journal article 2020
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Quan, D. (author), Mischo, Chiara (author), Binsfeld, Lucas (author), Ivankovic, Alojz (author), Murphy, Neal (author)
Polyphenylene-sulfide (PPS) veils doped with MWCNTs and graphene nanoplatelets (GNPs) were used as interleaves of a carbon fibre/epoxy composite, aiming to study its effects on the fracture performance. Interlaying original PPS veils significantly improved the mode-I and mode-II fracture toughness of the laminates due to a PPS fibre bridging...
journal article 2020
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Wolbertus, R. (author)
A lack of charging infrastructure is seen as the biggest barrier to electric vehicle adoption. This thesis analyses the use of public charging infrastructure and its relation to electric vehicle adoption in urban areas. With the use a large dataset on charging station use, charging behaviour is characterised and the influence of national and...
doctoral thesis 2020
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Yap, M.D. (author)
Public transport systems can be subject to disruptions, which have negative impacts on passengers. Disruptions can result in additional in-vehicle time, waiting time, transfer time and extra transfers for passengers. In addition, perceived journey times might increase due to higher crowding levels on public transport services. Public transport...
doctoral thesis 2020
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Fanalista, F. (author)
Cell replication is a fascinating biological process that ensures the proliferation of a species via division of a mother cell into two daughter ones. This process in bacteria is performed by a complex protein machinery named the Z-ring, which assembles at the cell mid-plane and promotes progressive membrane constriction down to division. A...
doctoral thesis 2020
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Hong, Z. (author)
Reducing weight and improving strength of structures have always been major design goals in the aerospace industry since its inception. In particular, strength directly affects the safety and serviceability of an airplane and is therefore of great importance in structural design. Improving the strength of an airframe can effectively increase its...
doctoral thesis 2020
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Mamali, D. (author)
Atmospheric aerosol particles are solid or liquid particles suspended in the atmosphere. They are directly emitted into the atmosphere or they are formed via the oxidation of gaseous precursors. Understanding the behavior of particles in the atmosphere is particularly important because they can affect the Earth’s climate, visibility, air quality...
doctoral thesis 2020
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van den Bos, L.M.M. (author)
Two sources of uncertainty can be distinguished in models for wind turbine calculations. Firstly, the environment the wind turbine has to withstand is uncertain and has a direct impact on the life time of the turbine. Secondly, the models used to predict the forces acting on the turbine contain an unknown error, which can also be modeled as a...
doctoral thesis 2020
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Da Costa Junior, J. (author)
The societal and technical problems faced by low-income markets are increasingly seen as more complex due to environmental, social, and economic concerns. The enormous negative impacts of complex societal problems and the inability of designers to deal with complexity cannot be overcome without a paradigm shift in how we understand, engage with,...
doctoral thesis 2020
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van Erp, P.B.C. (author)
Traffic state information is crucial for different applications, e.g., in design and operation of road traffic networks, and in navigation services. Traffic sensing data, e.g., loop-detector data, may directly provide the desired information. Alternatively, the traffic state information may be estimated with data that only provides partial and...
doctoral thesis 2020
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Scheper, K.Y.W. (author), de Croon, G.C.H.E. (author)
Automatic optimization of robotic behavior has been the long-standing goal of Evolutionary Robotics. Allowing the problem at hand to be solved by automation often leads to novel approaches and new insights. A common problem encountered with this approach is that when this optimization occurs in a simulated environment, the optimized policies are...
journal article 2020
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Fu, Qiang (author), Yi, Sinan (author), Chen, B. (author), Bui, Tinh Quoc (author), Hu, Xiaofei (author), Yao, Weian (author)
Numerical study on crack propagation are of great importance for structure design and assessment. In this contribution, the floating node method (FNM) is combined with the symplectic analytical singular element (SASE) to form a new crack-tip element. The four node quadrilateral crack-tip element contains a SASE for the crack tip area to...
journal article 2020
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Raimondo, A. (author), Doesburg, S.A. (author), Bisagni, C. (author)
In this work, an approach based on the Virtual Crack Closure Technique, included in the commercial finite element code ABAQUS, is adopted to study the propagation of delamination in composite structures under quasi-static and fatigue loads. The methodology, originally capable of simulating only delamination under quasi-static loads, has...
journal article 2020
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