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| 1 | FEM thermal analysis of high power GaN-on-diamond HEMTs显示文摘A three-dimensional thermal analysis of GaN HEMTs on diamond substrate is investigated using the finite element method. The diamond substrate thickness, area and shape, transition layer thickness and thermal conductivity of the transition layer are considered and treated appropriately in the numerical simulation. The temperature distribution and heat spreading paths are investigated under different conditions and the results indicate that the existence of the transition layer causes an increase in the channel temperature and the thickness, area and shape of the diamond substrate have certain impacts on the channel temperature too. Channel temperature reduces with increasing diamond substrate thickness and area but with a decreasing trend, which can be explained by the saturation effects of the diamond substrate. The shape of diamond substrate also affects the temperature performance of GaN HEMTs, therefore, to achieve a favorable heat dissipation effect with the settled diamond substrate area, the shape should contain as many isothermal curves as possible when the isothermal gradient is constant. The study of the thermal properties of GaN on diamond substrate is useful for the prediction of heating of high power GaN HEMTs devices and optimal designs of an efficient heat spreader for GaN HEMTs. | Xudong Chen Wenbo Zhai Jingwen Zhang Renan Bu Hongxing Wang Xun Hou | 2018 | Journal of Semiconductors2018，39，10： | 2 |
| 2 | Upregulated expression of ubiquitin-conjugating enzyme E2Q1 (UBE2Q1) is associated with enhanced cell proliferation and poor prognosis in human hapatocellular carcinoma显示文摘 | Renan Chang Lixian Wei Yuhua Lu Xiaopeng Cui Cuihua Lu Luoliang Liu Dawei Jiang YiCheng Xiong Gang Wang Chunhua Wan Haixin Qian | 2015 | Journal of Molecular Histology2015，，1： | 1 |
| 3 | New alkylation route of benzene with ethylene catalyzed by FeC13 - C1 ionic liquid 显示文摘 | Sun Xuewen Zhao Suoqi Wang Renan | 2004 | China J Chem Eng2004，12，5： | 1 |
| 4 | EPOCHS:A Platform for AgentBased Electric Power and Communication Simulation Built From Commercial Off-the-Shelf Components显示文摘 | Kenneth Hopkinson Xiaoru Wang Renan Giovanini | | 0，，21： | 1 |
| 5 | 'One - pot' process for fabrication of organic - silica hybrid monolithic capillary columns using organic monomer and alkoxysilane 显示文摘 | WU MINGHUO WU RENAN WANG FANGJUN | 2009 | Analytical Chemistry2009，81，9： | 1 |
| 6 | Coking and decoking chemistry for resource utilization of polycyclic aromatic hydrocarbons(PAHs)and low-carbon process显示文摘Low-carbon process for resource utilization of polycyclic aromatic hydrocarbons(PAHs)in zeolitecatalyzed processes,geared to carbon neutrality-a prominent trend throughout human activities,has been bottlenecked by the lack of a complete mechanistic understanding of coking and decoking chemistry,involving the speciation and molecular evolution of PAHs,the plethora of which causes catalyst deactivation and forces regeneration,rendering significant CO_(2) emission.Herein,by exploiting the high-resolution matrix-assisted laser desorption/ionization Fourier-transform ion cyclotron resonance mass spectrometry(MALDI FT-ICR MS),we unveil the missing fingerprints of the mechanistic pathways for both formation and decomposition of cross-linked cage-passing PAHs for SAPO-34-catalyzed,industrially relevant methanol-to-olefins(MTO)as a model reaction.Notable is the molecule-resolved symmetrical signature:their speciation originates exclusively from the direct coupling of in-cage hydrocarbon pool(HCP)species,whereas water-promoted decomposition of cage-passing PAHs initiates with selective cracking of inter-cage local structures at 8-rings followed by deep aromatic steam reforming.Molecular deciphering the reversibly dynamic evolution trajectory(fate)of full-spectrum aromatic hydrocarbons and fulfilling the real-time quantitative carbon resource footprints advance the fundamental knowledge of deactivation and regeneration phenomena(decay and recovery motifs of autocatalysis)and disclose the underlying mechanisms of especially the chemistry of coking and decoking in zeolite catalysis.The positive yet divergent roles of water in these two processes are disentangled.These unprecedented insights ultimately lead us to a steam regeneration strategy with valuable CO and H_(2) as main products,negligible CO_(2) emission in steam reforming and full catalyst activity recovery,which further proves feasible in other important chemical processes,promising to be a sustainable and potent approach that contributes to carbon-neutral chemical industry. | Nan Wang Li Wang Yuchun Zhi Jingfeng Han Chengwei Zhang Xinqiang Wu Jinling Zhang Linying Wang Benhan Fan Shutao Xu Yijun Zheng Shanfan Lin Renan Wu Yingxu Wei Zhongmin Liu | 2023 | Journal of Energy Chemistry2023，，1： | 0 |
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