Searched for: +
(1 - 20 of 34)

Pages

document
Tang, X. (author), Bassir, D.H. (author), Zhang, W. (author)
In this work, we explore simultaneous designs of materials selection and structural optimization. As the material selection turns out to be a discrete process that finds the optimal distribution of materials over the design domain, it cannot be performed with common gradient-based optimization methods. In this paper, material selection is...
journal article 2010
document
Zhang, Su-xia (author), Tang, You-gang (author), Liu, Xi-jun (author)
journal article 2012
document
Liu, Liqin (author), Incecik, A. (author), Zhang, Y. (author), Tang, Y. (author)
journal article 2014
document
Tang, H. (author), Ye, H. (author), Wong, K.Y. (author), Leung, Stanley Y.Y. (author), Fan, Jiajie (author), Chen, Xianping (author), Fan, Xuejun (author), Zhang, Kouchi (author)
The objective of this study is to quantitatively evaluate the impacts of LED components on the overdriving reliability of high power white LED chip scale packages (CSPs). The reliability tests under room temperature are conducted over 1000 h in this study on CSP LEDs with overdriving currents. A novel method is proposed to investigate the...
journal article 2017
document
Hu, Fa-Fei (author), Tang, H. (author), Ye, H. (author), Chen, X. (author), Zhang, Kouchi (author)
The sensing behavior of monolayer tin sulfide (SnS) for four gas molecules (NH<sub>3</sub>, NO<sub>2</sub>, CO, and H<sub>2</sub>O) are studied by the first-principle calculation based on density-functional theory. We calculate adsorption energy, adsorption distance, and Hirshfeld charge to estimate the adsorption ability of monolayer SnS for...
journal article 2017
document
Zhang, Xinying (author), Wu, Yan (author), Xiao, Gao (author), Tang, Zhenping (author), Wang, Meiyin (author), Liu, Fuchang (author), Zhu, X. (author)
Azo dyes are very resistant to light-induced fading and biodegradation. Existing advanced oxidative pre-treatment methods based on the generation of non-selective radicals cannot efficiently remove these dyes from wastewater streams, and post-treatment oxidative dye removal is problematic because it may leave many byproducts with unknown...
journal article 2017
document
Tang, H. (author), Ye, Huai-Yu (author), Chen, Xian-Ping (author), Qian, Cheng (author), Fan, Xue-Jun (author), Zhang, Kouchi (author)
In this paper, the heat transfer performance of the multi-chip (MC) LED module is investigated numerically by using a general analytical solution. The configuration of the module is optimized with genetic algorithm (GA) combined with a response surface methodology. The space between chips, the thickness of the metal core printed circuit board...
journal article 2017
document
Qian, C. (author), Mirza Gheytaghi, Amir (author), Fan, J. (author), Tang, H. (author), Sun, B. (author), Ye, H. (author), Zhang, Kouchi (author)
As an increasing attention towards sustainable development of energy and environment, the power electronics (PEs) are gaining more and more attraction on various energy systems. The insulated gate bipolar transistor (IGBT), as one of the PEs with numerous advantages and potentials for development of higher voltage and current ratings, has been...
journal article 2018
document
Ye, H. (author), Hu, F.F. (author), Tang, H. (author), Yang, L.W. (author), Chen, X.P. (author), Wang, L.G. (author), Zhang, Kouchi (author)
In this work, the structural, electronic and optical properties of germanene and ZnSe substrate nanocomposites have been investigated using first-principles calculations. We found that the large direct-gap ZnSe semiconductors and zero-gap germanene form a typical orbital hybridization heterostructure with a strong binding energy, which shows...
journal article 2018
document
Wang, G. (author), Zhao, Junfei (author), Haringa, C. (author), Tang, W. (author), Xia, Jianye (author), Chu, Ju (author), Zhuang, Yingping (author), Zhang, Siliang (author), Deshmukh, A.T. (author), van Gulik, W.M. (author), Heijnen, J.J. (author), Noorman, H.J. (author)
In a 54 m<sup>3</sup> large-scale penicillin fermentor, the cells experience substrate gradient cycles at the timescales of global mixing time about 20–40 s. Here, we used an intermittent feeding regime (IFR) and a two-compartment reactor (TCR) to mimic these substrate gradients at laboratory-scale continuous cultures. The IFR was applied to...
journal article 2018
document
Yuan, Ye (author), Tang, Xiuchuan (author), Zhou, Wei (author), Pan, W. (author), Li, Xiuting (author), Zhang, Hai Tao (author), Ding, Han (author), Goncalves, Jorge (author)
Cyber-physical systems embed software into the physical world. They appear in a wide range of applications such as smart grids, robotics, and intelligent manufacturing. Cyber-physical systems have proved resistant to modeling due to their intrinsic complexity arising from the combination of physical and cyber components and the interaction...
journal article 2019
document
Zhang, Chi (author), Tang, Qiuhong (author), Chen, Deliang (author), van der Ent, R.J. (author), Liu, Xingcai (author), Li, Wenhong (author), Haile, Gebremedhin Gebremeskel (author)
Precipitation on the Tibetan Plateau (TP) showed different spatial changes during 1979-2016, with an increasing trend over the northern Tibetan Plateau (NTP) and a slightly negative trend over the southern Tibetan Plateau (STP). The changes in precipitation moisture sources over the NTP and STP are investigated using the improved Water...
journal article 2019
document
Tang, H. (author), Sacco, L.N. (author), Vollebregt, S. (author), Ye, H. (author), Fan, Xuejun (author), Zhang, Kouchi (author)
2D and nanostructured metal sulfide materials are promising in the advancement of several gas sensing applications due to the abundant choice of materials with easily tunable electronic, optical, physical, and chemical properties. These applications are particularly attractive for gas sensing in environmental monitoring and breath analysis....
review 2020
document
Tang, Shi Yuan (author), Oliehoek, F.A. (author), Irissappane, Athirai A. (author), Zhang, Jie (author)
Cross-Entropy Method (CEM) is a gradient-free direct policy search method, which has greater stability and is insensitive to hyperparameter tuning. CEM bears similarity to population-based evolutionary methods, but, rather than using a population it uses a distribution over candidate solutions (policies in our case). Usually, a natural...
conference paper 2021
document
Tang, Adrian (author), Alonso Del Pino, M. (author), Kim, Yanghyo (author), Zhang, Yan (author), Reck, Theodore (author), Jung-Kubiak, Cecile (author), Nemchick, Deacon (author), Dyer, Logan (author), Virbila, Gabriel (author), Chattopadhyay, Goutam (author), Chang, Mau Chung Frank (author)
This paper presents an overview of a sub-orbital flight demonstration with a 183 GHz and 540–600 GHz limb-sounding instrument aboard a stratospheric ballooncraft. The 183 GHz band provides soundings of stratospheric H 2 O and is implemented with a hybrid CMOS-InP receiver architecture which provides excellent sensitivity while remaining compact ...
journal article 2021
document
Tan, Zhichao (author), Jiang, H. (author), Zhang, H. (author), Tang, Xiyuan (author), Xin, Haoming (author), Nihtianova, S. (author)
Recent years have witnessed an improvement in the energy efficiency of capacitive sensor interfaces by more than three orders of magnitude. This article reviews the architectural and circuit innovations that have contributed to this progress. The fundamental limit on the energy consumption of capacitive sensor interfaces is discussed, as well...
journal article 2021
document
Tang, H. (author), Gao, Chenshan (author), Yang, Huiru (author), Sacco, L.N. (author), Sokolovskij, R. (author), Ye, H. (author), Vollebregt, S. (author), Fan, X. (author), Zhang, Kouchi (author)
In this paper, tin oxidation (SnO x )/tin-sulfide (SnS) heterostructures are synthesized by the post-oxidation of liquid-phase exfoliated SnS nanosheets in air. We comparatively analyzed the NO2 gas response of samples with different oxidation levels to study the gas sensing mechanisms. The results show that the samples oxidized at 325 °C are...
journal article 2021
document
Tang, H. (author), Hu, D. (author), Cui, Z. (author), Ye, H. (author), Zhang, Kouchi (author)
This paper analyzes the mechanical properties of tungsten disulfide (WS2) by means of multiscale simulation, including density functional theory (DFT), molecular dynamic (MD) analysis, and finite element analysis (FEA). We first conducted MD analysis to calculate the mechanical properties (i.e., Young's modulus and critical stress) of WS2....
journal article 2021
document
Liu, Yubo (author), Zhang, Chi (author), Tang, Qiuhong (author), Hosseini-Moghari, Seyed Mohammad (author), Haile, Gebremedhin Gebremeskel (author), Li, Laifang (author), Li, Wenhong (author), Yang, Kun (author), van der Ent, R.J. (author), Chen, Deliang (author)
Rainfall is one of the most influential climatic factors on regional development and environment, and changes in rainfall intensity are of specific concern. In the Huaihe River Valley (HRV), heavy rainfall is a primary trigger of floods. However, the difference in the origin of moisture contributed to heavy rainfall and light rainfall is...
journal article 2021
document
Li, Xiao (author), Tang, Jiuyang (author), Zhao, Jiayan (author), Li, Jinbing (author), Zhang, Kouchi (author), Liu, Pan (author)
With the development of 5G communication technology and the rise of power semiconductors, the switching frequency of the circuit keeps increasing, which pushes for miniaturization of power modules and related components. Therefore, in this paper, a one-step molding technology was proposed for a DC/DC buck converter power module. We proposed a...
conference paper 2022
Searched for: +
(1 - 20 of 34)

Pages