Searched for: subject:"Electronics"
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Guo, Y. (author)
Electron tomography is a powerful tool in materials science to characterize nanostructures in three dimensions (3D). In scanning transmission electron microscopy (STEM), the sample under study is exposed to a focused electron beam and tilted to obtain twodimensional (2D) projections at different angles; many imaging modes are available such as...
doctoral thesis 2020
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Zhang, B. (author)
Power electronics demand miniaturization, integration, higher electrical and ther-mal conductivities. However, the traditional electronic packaging materials and technology have limitations to meet these requirements. Conventional lead-free die attach materials, like Sn-Ag-Cu solders, can not satisfy high power electronics application, due to...
doctoral thesis 2020
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Wang, Da (author), Rueda, José L. (author), Rakhshani, E. (author), van der Meijden, M.A.M.M. (author)
Unlike synchronous generators, wind turbines cannot directly respond to large disturbances, which may cause transient instability, due to their power electronic-based interface and maximum power control strategy. To effectively monitor the influence of wind turbines, this paper proposes an approach that combines decision trees (DTs), and a...
journal article 2020
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Cai, Miao (author), Cui, Peng (author), Qin, Yikang (author), Geng, Daoshuang (author), Wei, Qiqin (author), Wang, Xiyou (author), Yang, Daoguo (author), Zhang, Kouchi (author)
Understanding the defect characterization of electronic and mechanical components is a crucial step in diagnosing component lifetime. Technologies for determining reliability, such as thermal modeling, cohesion modeling, statistical distribution, and entropy generation analysis, have been developed widely. Defect analysis based on the...
review 2020
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Cichocka, M.O. (author), Bolhuis, M. (author), van Heijst, S.E. (author), Conesa Boj, S.C. (author)
Layered materials (LMs) such as graphene or MoS2 have attracted a great deal of interest recently. These materials offer unique functionalities due to their structural anisotropy characterized by weak van der Waals bonds along the out-of-plane axis and covalent bonds in the in-plane direction. A central requirement to access the structural...
journal article 2020
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Hoekstra, J. (author)
The purpose of this paper is to investigate the two-capacitor paradox using circuit models developed in the analysis of circuits that include nanoelectronic single-electron tunneling devices. The two-capacitor paradox, in which it seems that energy is not conserved in a simple circuit consisting of two capacitors in parallel separated by an...
journal article 2020
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Peyghami, S. (author), Palensky, P. (author), Blaabjerg, Frede (author)
Renewable energy resources are becoming the dominating element in power systems. Along with de-carbonization, they transform power systems into a more distributed, autonomous, bottom-up style one. We speak of Smart Grid and Microgrid when distributed energy resources take over. While being a means to improve technical and financial efficiency,...
journal article 2020
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Kosari, A. (author), Zandbergen, H.W. (author), Tichelaar, F.D. (author), Visser, P. (author), Terryn, H.A. (author), Mol, J.M.C. (author)
Identifying corrosion initiation events in metals and alloys demands techniques that can provide temporal and spatial resolution simultaneously. Transmission electron microscopy (TEM) enables one to obtain microstructural and chemical descriptors of materials at atomic/nanoscopic level and has been used in corrosion studies of many metal...
review 2020
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Wong, H.S. (author), Poole, A.B. (author), Wells, B. (author), Eden, M. (author), Barnes, R. (author), Ferrari, J. (author), Fox, R. (author), Yio, M.H.N. (author), Copuroglu, Oguzhan (author)
Water to cement (w/c) ratio is usually the most important parameter specified in concrete design and is sometimes the subject of dispute when a shortfall in concrete strength or durability is an issue. However, determination of w/c ratio in hardened concrete by testing is very difficult once the concrete has set. This paper presents the...
journal article 2020
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Mahor, D. (author), Puschmann, J. (author), van den Haak, Menno (author), Kooij, Pepijn J. (author), van den Ouden, David L.J. (author), Strampraad, M.J.F. (author), Srour, B. (author), Hagedoorn, P.L. (author)
Abstract: Chlorite dismutase is a unique heme enzyme that catalyzes the conversion of chlorite to chloride and molecular oxygen. The enzyme is highly specific for chlorite but has been known to bind several anionic and neutral ligands to the heme iron. In a pH study, the enzyme changed color from red to green in acetate buffer pH 5.0. The...
journal article 2020
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Zhang, Xukai (author), Ioannidou, C. (author), ten Brink, Gert H. (author), Navarro Lopez, A. (author), Wormann, Jan (author), Campaniello, Jean (author), Dalgliesh, Robert M. (author), van Well, A.A. (author), Offerman, S.E. (author), Kranendonk, Winfried (author), Kooi, Bart J. (author)
A cold-rolled Ti-V high strength low alloy (HSLA) steel was isothermally annealed at 650 °C and 700 °C for different times. A unique combination of techniques including visible light microscopy (VLM), transmission electron microscopy (TEM), matrix dissolution, small angle neutron scattering (SANS) and hardness measurement has been employed to...
journal article 2020
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Deutz, D.B. (author), van der Zwaag, S. (author), Groen, P.C. (author)
As demand rises for flexible electronics, traditionally prepared sintered ceramic sensors must be transformed into fully new sensor materials that can bend and flex in use and integration. Negative temperature coefficient of resistance (NTC) ceramic thermistors are preferred temperature sensors for their high accuracy and excellent stability,...
journal article 2020
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Hesam Mahmoudi Nezhad, N. (author), Ghaffarian Niasar, M. (author), Hagen, C.W. (author), Kruit, P. (author)
In electron optics, the design of electron lens systems is still a challenge. To optimize such systems, the objective function which should be calculated, depends on the electric potential distribution in the space created by the lenses. To obtain the electric potential, the existing methods are generally based on some mathematical techniques...
conference paper 2020
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Fang, C. M. (author), Mohammodi, V. (author), Nihtianov, S. (author), Sluiter, M.H.F. (author)
A new generation of radiation detectors relies on the crystalline Si and amorphous B (c-Si/a-B) junctions that are prepared through chemical vapor deposition of diborane (B<sub>2</sub>H<sub>6</sub>) on Si at low temperature (∼400 C). The Si wafer surface is dominated by the Si{0 0 1}3 1 domains that consist of two different Si species at low...
journal article 2020
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Jansen, K.M.B. (author), Zhang, M. F. (author), Ernst, L. J. (author), Vu, D. K. (author), Weiss, L. (author)
In this paper we propose a new multistep characterisation method to be able to map out the dependency of moisture diffusion parameters of a polymeric material over a range of temperature and humidity conditions in a limited amount of time. We do that by (1) using a moisture sorption analyser which can continuously monitor weight changes with...
journal article 2020
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Zhang, Lixin (author), Garming, M.W.H. (author), Hoogenboom, J.P. (author), Kruit, P. (author)
Electrostatic beam blankers are an alternative to photo-emission sources for generating pulsed electron beams for Time-resolved Cathodoluminescence and Ultrafast Electron Microscopy. While the properties of beam blankers have been extensively investigated in the past for applications in lithography, characteristics such as the influence of...
journal article 2020
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van Kessel, L.C.P.M. (author), Huisman, T. (author), Hagen, C.W. (author)
Line-edge roughness (LER) is often measured from top-down critical dimension scanning electron microscope (CD-SEM) images. The true three-dimensional roughness profile of the sidewall is typically ignored in such analyses. We study the response of a CD-SEM to sidewall roughness (SWR) by simulation. We generate random rough lines and spaces,...
conference paper 2020
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Fu, J. (author), van Slingerland, J. (author), Brouwer, J.C. (author), Bliznuk, Vitaliy (author), Richardson, I.M. (author), Hermans, M.J.M. (author)
Pulsed laser beam welding was used successfully to join the oxide dispersion-strengthened (ODS) Eurofer steel. The joining was conducted with a laser power of 2500 W and a pulsed duration of 4 ms. With the filler material being used, a minor material loss and microvoids were observed in the joint. The microstructure of the fusion zone...
journal article 2020
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Hou, F. (author), Zhang, Hengyun (author), Huang, Dezhu (author), Fan, J. (author), Liu, Fengman (author), Lin, Tingyu (author), Cao, Liqiang (author), Fan, Xuejun (author), Ferreira, Braham (author), Zhang, Kouchi (author)
In this article, a microchannel thermal management system (MTMS) with the two-phase flow using the refrigerant R1234yf with low global warming potential is presented. The thermal test vehicles (TTVs) were made of either single or multiple thermal test chips embedded in the substrates, which were then attached to the MTMS. The system included...
journal article 2020
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Wani, F.M. (author), Shipurkar, U. (author), Dong, J. (author), Polinder, H. (author), Jarquin Laguna, A. (author), Mostafa, Kaswar (author), Lavidas, G. (author)
Thermal cycling is one of the major reasons for failure in power electronic converters. For submerged tidal turbine converters investigating this failure mode is critical in improving the reliability, and minimizing the cost of energy from tidal turbines. This paper considers a submerged tidal turbine converter which is passively cooled by...
journal article 2020
Searched for: subject:"Electronics"
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