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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
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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
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Tang, Linkai (author), He, Yan Bing (author), Wang, Chao (author), Wang, Shuan (author), Wagemaker, M. (author), Li, Baohua (author), Yang, Quan Hong (author), Kang, Feiyu (author)
Nanosized Li<sub>4</sub>Ti<sub>5</sub>O<sub>12</sub> (LTO) materials enabling high rate performance suffer from a large specific surface area and low tap density lowering the cycle life and practical energy density. Microsized LTO materials have high density which generally compromises their rate capability. Aiming at combining the favorable...
journal article 2017
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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
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Haringa, C. (author), Tang, W. (author), Wang, G. (author), Deshmukh, A.T. (author), van Winden, Wouter A. (author), Chu, Ju (author), van Gulik, W.M. (author), Heijnen, J.J. (author), Mudde, R.F. (author), Noorman, H.J. (author)
We assess the effect of substrate heterogeneity on the metabolic response of P. chrysogenum in industrial bioreactors via the coupling of a 9-pool metabolic model with Euler-Lagrange CFD simulations. In this work, we outline how this coupled hydrodynamic-metabolic modeling can be utilized in 5 steps. (1) A model response study with a fixed...
journal article 2018
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Xiahou, Xiaer (author), Yuan, Jingfeng (author), Liu, Y. (author), Tang, Yuchun (author), Li, Qiming (author)
Construction industrialization (CI) has been adopted worldwide because of its potential benefits. However, current research shows the incentives for adopting CI may differ in different regions. While the promotion of CI in China is still at the initial stage, a systematical analysis of the driving factors would help decision makers get a...
journal article 2018
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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
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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
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Tang, T. (author), Anupam, K. (author), Kasbergen, C. (author), Kogbara, Reginald (author), Scarpas, Athanasios (author), Masad, Eyad (author)
The skid resistance of a pavement surface is an important characteristic that influences traffic safety. Previous studies have shown that skid resistance varies with temperature. However, relatively limited work has been carried out to study the effect of temperature on skid resistance in hot climates. Recent developments in computing and...
journal article 2018
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Manca, N. (author), Groenendijk, D.J. (author), Pallecchi, Ilaria (author), Autieri, Carmine (author), Tang, Lucas M.K. (author), Telesio, Francesca (author), Mattoni, G. (author), McCollam, Alix (author), Picozzi, Silvia (author), Caviglia, A. (author)
Relating the band structure of correlated semimetals to their transport properties is a complex and often open issue. The partial occupation of numerous electron and hole bands can result in properties that are seemingly in contrast with one another, complicating the extraction of the transport coefficients of different bands. The 5d oxide...
journal article 2018
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Liu, Jianguo (author), Beard, Matt (author), Isabella, O. (author), Tang, Jianxin (author)
The editors introduce the feature issue on “Energy, Light and the Environment (LEE) 2017”, which is based on the topics presented at a congress of the same name held in Boulder, CO, US, from November 6 to November 9. This feature issue presents 13 papers selected from the voluntary submissions by attendees who presented at the progress and...
review 2018
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Bi, Jichao (author), Yang, L. (author), Yang, Xiaofan (author), Wu, Yingbo (author), Tang, Yuan Yan (author)
This article addresses the tradeoff between the losses caused by a new virus and the size of the team for developing an antivirus against the virus. First, an individual-level virus spreading model is proposed to capture the spreading process of the virus before the appearance of its natural enemy. On this basis, the tradeoff problem is...
journal article 2018
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Liu, Jikai (author), Gaynor, Andrew T. (author), Chen, Shikui (author), Kang, Zhan (author), Suresh, Krishnan (author), Takezawa, Akihiro (author), Li, Lei (author), Kato, Junji (author), Tang, Jinyuan (author), Wang, C.C. (author), Cheng, Lin (author), Liang, Xuan (author), To, Albert. C. (author)
Manufacturing-oriented topology optimization has been extensively studied the past two decades, in particular for the conventional manufacturing methods, for example, machining and injection molding or casting. Both design and manufacturing engineers have benefited from these efforts because of the close-to-optimal and friendly-to-manufacture...
journal article 2018
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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
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Tang, J. (author), Avallone, F. (author), Bontempo, R. (author), van Bussel, G.J.W. (author), Manna, M. (author)
This paper reports an experimental investigation on the effect of the duct geometry on the aerodynamic performance of an aerofoil shaped ducted wind turbine (DWT). The tested two-dimensional model is composed of an aerofoil equipped with pressure taps and a uniform porous screen. The experimental setup is based on the assumption that the duct...
journal article 2018
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Tang, J. (author), Ansari, Mohammed N. (author), Rossen, W.R. (author)
The effectiveness of foam for mobility control in the presence of oil is key to foam enhanced oil recovery (EOR). A fundamental property of foam EOR is the existence of two steady-state flow regimes: the high-quality regime and the low-quality regime. Experimental studies have sought to understand the effect of oil on foam through its effect on...
journal article 2019
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Lu, Xingyuan (author), Shao, Y. (author), Zhao, C.L. (author), Konijnenberg, A.P. (author), Zhu, Xinlei (author), Tang, Y. (author), Cai, Yangjian (author), Urbach, Paul (author)
We propose and experimentally demonstrate a noniterative diffractive imaging method for reconstructing the complex-valued transmission function of an object illuminated by spatially partially coherent light from the far-field diffraction pattern. Our method is based on a pinhole array mask, which is specially designed such that the...
journal article 2019
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Tang, J. (author), Vincent-Bonnieu, S.Y.F. (author), Rossen, W.R. (author)
We present a CT coreflood study of foam flow with two representative oils: hexadecane C<sub>16</sub> (benign to foam) and a mixture of 80 wt% C<sub>16</sub> and 20 wt% oleic acid (OA) (very harmful to foam). The purpose is to understand the transient dynamics of foam, both generated in-situ and pre-generated, as a function of oil saturation...
conference paper 2019
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Tang, J. (author), Castañeda, Pablo (author), Marchesin, Dan (author), Rossen, W.R. (author)
Understanding the interplay of foam and non-aqueous phases in porous media is key to improving the design of foam for enhanced oil recovery and remediation of aquifers and soils. A widely used implicit-texture foam model predicts phenomena analogous to cusp catastrophe theory: the surface describing foam apparent viscosity as a function of...
journal article 2019
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Shao, Y. (author), Loktev, Mikhail (author), Tang, Y. (author), Bociort, F. (author), Urbach, Paul (author)
For advanced imaging systems, e.g., projection systems for optical lithography, spatially varying aberration calibration is of utmost importance to achieve uniform imaging performance over the entire field-of-view (FOV). Here we present an efficient, accurate, and robust spatially varying aberration calibration method using a pair of 2...
journal article 2019
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