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37篇 您的检索式:作者名="Weichen Wang"
    题名 作者 年代 出处 被引量
1Infrared radiation signature of exhaust plume from solid propellants with different energy characteristics显示文摘The infrared radiation signature of the plume from solid propellants with different energy characteristics is not the same. Three kinds of double-base propellants of different energy characteristics are chosen to measure the infrared spectral radiance from 1000 cm 1 to 4500 cm 1 of their plumes. The radiative spectrum is obtained in the tests. The experimental results indicate that the infrared radiation of the plume is determined by the energy characteristics of the propellant. The radiative transfer calculation models of the exhaust plume for the solid propellants are established. By including the chemical reaction source term and the radiation source term into the energy equation, the plume field and the radiative transfer are solved in a coupled way. The calculated results are consistent with the experimental data, so the reliability of the models is confirmed. The temperature distribution and the extent of the afterburning of the plume are distinct for the propellants of different energy characteristics, therefore the plume radiation varies for different propellants. The temperature of the fluid cell in the plume will increase or decrease to some extent by the influence of the radiation term.Wang Weichen Li Shipeng Zhang Qiao Wang Ningfei 2013Chinese Journal of Aeronautics2013,26,3:14
2Inhibition Effect of Water Injection on Afterburning of Rocket Motor Exhaust Plume显示文摘One of the most important characteristic signatures of the exhaust plume from rocket motor is the afterburning phenomenon,and the injected water into the plume could inhibit the afterburning.The calculation model for the gas-liquid multiphase flow field with chemical reaction in the plume is built.By inducing the energy source terms caused by the vaporization of liquid water,condensation of the vapor and chemical reaction in the energy equation,the gas-liquid multiphase flow field and the afterburning phenomenon are calculated in a coupling way.Mixture multiphase flow model is used to calculate the gas-liquid flow field,and the vaporization mechanism is used to investigate the water vaporization process.The temperature contours are obtained and accord well with the experimental photos.The mass fraction contours of primary species are obtained,which can indicate the extent of inhibition effect of water injection on the afterburning phenomenon in the plume.When water is injected into the plume,the region of afterburning reduces a lot,and temperature on the ground wall declines rapidly,which can decrease the ablation of the combustion gas to the launch ground.Jiang Yi Ma Yanli Wang Weichen Shao Liwu 2010Chinese Journal of Aeronautics2010,23,6:7
3Preparation of H-terminated and aminated diamond like carbon surfaces显示文摘H-terminated DLC layers were synthesized on SiO 2 substrate by radio frequency (RF) magnetron plasma-enhanced chemical vapor deposition (PECVD) in a conventional reactor using C 4 H 10 as carbon source. As-deposited DLC films were characterized by Raman spectroscopy, scanning electron microscopy (SEM) as well as atomic force microscopy (AFM). The chemical reactivity of the obtained DLC surface was further investigated by exposing the photochemically oxidized DLC surface to a silane reagent. The course of the reaction was followed using water contact angle and X-ray photoelectron spectroscopy.Wang, Mei Wang, Weichen Huang, Yujie Li, Musen 2012Rare Metals2012,31,2:2
4PsyMuKB: An Integrative De Novo Variant Knowledge Base for Developmental Disorders显示文摘De novo variants(DNVs)are one of the most significant contributors to severe earlyonset genetic disorders such as autism spectrum disorder,intellectual disability,and other developmental and neuropsychiatric(DNP)disorders.Presently,a plethora of DNVs have been identified using next-generation sequencing,and many efforts have been made to understand their impact at the gene level.However,there has been little exploration of the effects at the isoform level.The brain contains a high level of alternative splicing and regulation,and exhibits a more divergent splicing program than other tissues.Therefore,it is crucial to explore variants at the transcriptional regulation level to better interpret the mechanisms underlying DNP disorders.To facilitate a better usage and improve the isoform-level interpretation of variants,we developed NeuroPsychiatric Mutation Knowledge Base(PsyMuKB).It contains a comprehensive,carefully curated list of DNVs with transcriptional and translational annotations to enable identification of isoformspecific mutations.PsyMuKB allows a flexible search of genes or variants and provides both table-based descriptions and associated visualizations,such as expression,transcript genomic structures,protein interactions,and the mutation sites mapped on the protein structures.It also provides an easy-to-use web interface,allowing users to rapidly visualize the locations and characteristics of mutations and the expression patterns of the impacted genes and isoforms.PsyMuKB thus constitutes a valuable resource for identifying tissue-specific DNVs for further functional studies of related disorders.PsyMuKB is freely accessible at http://gffzz08064908ab1147fdhnunuxc0vb5qf669n.ffgz.tsg.suse.edu.cn.Guan Ning Lin Sijia Guo Xian Tan Weidi Wang Wei Qian Weichen Song Jingru Wang Shunying Yu Zhen Wang Donghong Cui Han Wang 2019Genomics, Proteomics & Bioinformatics2019,17,4:2
5Creep Behavior of High-speed Railway Prestressed Concrete Girders for 500 Days 显示文摘Xue Weichen Liu Ting Wang Wei and Hu Yuming 2011ACI Structural Journal2011,108,4:1
6Static behavior and theoretical model of stud shear connectors显示文摘Xue Weichen Ding Min Wang Hua 2008Journal of Bridge Engineering2008,13,62:1
7Regulating the nanoscale intimacy of metal and acidic sites in Ru/γ-Al_(2)O_(3)for the selective conversions of lignin-derived phenols to jet fuels显示文摘Catalytic hydrodeoxygenation(HDO)of biomass-derived oxy-compounds to advanced hydrocarbon fuels usually requires bifunctional catalysts containing metals and acidic sites.The appropriate tuning of metal and/or acidic active sites at interfaces of bifunctional catalysts can significantly improve catalyst activity and product selectivity.Here,4-trifuoromethyl salicylic acid(TFMSA),as a hydrothermal stable organic acid,was employed to tailor the bifunctional interface of Ru/γ-Al_(2)O_(3)to enhance the catalytic performance on converting lignin-derived phenols to jet fuel range cycloalkanes.More than 80%phenol was converted into cyclohexane at 230°C for 1 h over Ru/γ-Al_(2)O_(3)modified by TFMSA,which was about three times higher than that over unmodified Ru/γ-Al_(2)O_(3).X-ray diffraction(XRD),Transmission electron microscope(TEM),H2 chemisorption,and energy dispersive X-ray spectroscopy(EDS)elemental mapping results indicated that Ru nanoparticles and TFMSA were well distributed onγ-Al_(2)O_(3),and a nanoscale intimacy between Ru and TFMSA was reached.Meanwhile,Fourier transform infrared spectroscopy after pyridine adsorption(Py-FT-IR)analysis proved that Brønsted acidic sites on the catalytic interfaces of TFMSA modified Ru/γ-Al_(2)O_(3)had been improved.Moreover,the kinetic and density functional theory(DFT)results suggested that the synergistic effects of adjacent Ru nanoparticles and acidic sites were crutial for promoting the rate-limiting conversion step of phenol HDO to cyclohexane.Shanshuai Chen Weichen Wang Xue Li Puxiang Yan Wanying Han Tian Sheng Tiansheng Deng Wanbin Zhu Hongliang Wang 2022Journal of Energy Chemistry2022,31,3:1
8The Solar Upper Transition Region Imager(SUTRI)Onboard the SATech-01 Satellite显示文摘The Solar Upper Transition Region Imager(SUTRI)onboard the Space Advanced Technology demonstration satellite(SATech-01),which was launched to a Sun-synchronous orbit at a height of~500 km in 2022 July,aims to test the on-orbit performance of our newly developed Sc/Si multi-layer reflecting mirror and the 2k×2k EUV CMOS imaging camera and to take full-disk solar images at the Ne VII 46.5 nm spectral line with a filter width of~3 nm.SUTRI employs a Ritchey-Chrétien optical system with an aperture of 18 cm.The on-orbit observations show that SUTRI images have a field of view of~416×416 and a moderate spatial resolution of~8″without an image stabilization system.The normal cadence of SUTRI images is 30 s and the solar observation time is about16 hr each day because the earth eclipse time accounts for about 1/3 of SATech-01's orbit period.Approximately15 GB data is acquired each day and made available online after processing.SUTRI images are valuable as the Ne VII 46.5 nm line is formed at a temperature regime of~0.5 MK in the solar atmosphere,which has rarely been sampled by existing solar imagers.SUTRI observations will establish connections between structures in the lower solar atmosphere and corona,and advance our understanding of various types of solar activity such as flares,filament eruptions,coronal jets and coronal mass ejections.Xianyong Bai Hui Tian Yuanyong Deng Zhanshan Wang Jianfeng Yang Xiaofeng Zhang Yonghe Zhang Runze Qi Nange Wang Yang Gao Jun Yu Chunling He Zhengxiang Shen Lun Shen Song Guo Zhenyong Hou Kaifan Ji Xingzi Bi Wei Duan Xiao Yang Jiaben Lin Ziyao Hu Qian Song Zihao Yang Yajie Chen Weidong Qiao Wei Ge Fu Li Lei Jin Jiawei He Xiaobo Chen Xiaocheng Zhu Junwang He Qi Shi Liu Liu Jinsong Li Dongxiao Xu Rui Liu Taijie Li Zhenggong Feng Yamin Wang Chengcheng Fan Shuo Liu Sifan Guo Zheng Sun Yuchuan Wu Haiyu Li Qi Yang Yuyang Ye Weichen Gu Jiali Wu Zhe Zhang Yue Yu Zeyi Ye Pengfeng Sheng Yifan Wang Wenbin Li Qiushi Huang Zhong Zhang 2023Research in Astronomy and Astrophysics2023,23,6:1
9Static behavior and theoretical model of stud shear connectors显示文摘XUE Weichen DING Min WANG Hua 2008Journal of Bridge Engineering2008,13,6:1
10Rhesus monkeys exhibiting spontaneous ritualistic behaviors resembling obsessive-compulsive disorder显示文摘Obsessive-compulsive disorder(OCD)is a chronic and debilitating psychiatric disorder that affects∼2%–3%of the population globally.Studying spontaneous OCD-like behaviors in non-human primates may improve our understanding of the disorder.In large rhesus monkey colonies,we found 10 monkeys spontaneously exhibiting persistent sequential motor behaviors(SMBs)in individual-specific sequences that were repetitive,time-consuming and stable over prolonged periods.Genetic analysis revealed severely damaging mutations in genes associated with OCD risk in humans.Brain imaging showed that monkeys with SMBs had larger gray matter(GM)volumes in the left caudate nucleus and lower fractional anisotropy of the corpus callosum.The GM volume of the left caudate nucleus correlated positively with the daily duration of SMBs.Notably,exposure to a stressor(human presence)significantly increased SMBs.In addition,fluoxetine,a serotonergic medication commonly used for OCD,decreased SMBs in these monkeys.These findings provide a novel foundation for developing better understanding and treatment of OCD.Rongwei Zhai Geya Tong Zheqin Li Weichen Song Yang Hu Sha Xu Qiqi Wei Xiaocheng Zhang Yi Li Bingbing Liao Chenyu Yuan Yinqing Fan Ge Song Yinyin Ouyang Wenxuan Zhang Yaqiu Tang Minghui Jin Yuxian Zhang He Li Zhi Yang Guan Ning Lin Dan JStein Zhi-Qi Xiong Zhen Wang 2023National Science Review2023,10,11:1
11Bond properties of high strength CFRP strands 显示文摘XUE WEICHEN WANG XIAOHUI ZHANG SHULU 2008ACI Material Journal2008,105,1:1
12Static behavior and theoretical model of stud shear connectors显示文摘XUE Weichen DING Min WANG Hua 2008Journal of Bridge Engineering ASCE2008,,:1
13Advances in durability of FRP bars under alkaline environment 显示文摘Wang Wei Xue Weichen 2011ICETCE2011,,1:1
14Influence of Calcareous Deposit on Corrosion Behavior of Q235 Carbon Steel with Sulfate-Reducing Bacteria显示文摘Cathodic protection is a very effective method to protect metals, which can form calcareous deposits on metal surface. Research on the interrelationship between fouling organism and calcareous deposits is very important but very limited, especially sulfate-reducing bacteria(SRB). SRB is a kind of very important fouling organism that causes microbial corrosion of metals. A study of the influence of calcareous deposit on corrosion behavior of Q235 carbon steel in SRB-containing culture medium was carried out using electrochemical impedance spectroscopy(EIS), scanning electron microscopy(SEM) and surface spectroscopy(EDS). The calcareous deposit was formed with good crystallinity and smooth surface under the gradient current density of -30 μA cm^(-2) in natural seawater for 72 h. Our results can help elucidate the formation of calcareous deposits and reveal the interrelationship between SRB and calcareous deposits under cathodic protection. The results indicate that the corrosion tendency of carbon steel was obviously affected by Sulfate-reducing Bacteria(SRB) metabolic activity and the calcareous deposit formed on the surface of carbon steel under cathodic protection was favourable to reduce the corrosion rate. Calcareous deposits can promote bacterial adhesion before biofilm formation. The results revealed the interaction between biofouling and calcareous deposits, and the anti-corrosion ability was enhanced by a kind of inorganic and organic composite membranes formed by biofilm and calcareous deposits.ZHANG Jie LI Xiaolong WANG Jiangwei XU Weichen DUAN Jizhou CHEN Shougang HOU Baorong 2017Journal of Ocean University of China2017,16,6:1
15Bond properties of high strength CFRP strands 显示文摘XUE Weichen WANG Xiaohui ZHANG Shulu 2008ACI Materials Journal2008,105,1:1
16Experimental studies on behavior of stud shear connectors subjected to cyclic loads显示文摘XUE Weichen LUO Zihua WANG Hua 2005Jour- nal of Harbin Institute of Technology2005,37,9:1
17Numeri- cal analysis on oscillation characteristics in a tailpipe nozzle solid rocket motor显示文摘ZHANG Qiao LI Junwei WANG Weichen 2011Journal of Spacecraft and Rockets2011,48,1:1
18Bond properties of high strength CFRP strands 显示文摘XUE WEICHEN WANG XIAOHUI ZHANG SHULU 2008ACI Material Journal2008,105,1:1
19China's policy framework for carbon capture,utilization and storage:Review,analysis,and outlook显示文摘Carbon capture,utilization,and storage(CCUS)is estimated to contribute substantial CO_(2)emission reduction to carbon neutrality in China.There is yet a large gap between such enormous demand and the current capacity,and thus a sound enabling environment with sufficient policy support is imperative for CCUS development.This study reviewed 59 CCUS-related policy documents issued by the Chinese government as of July 2022,and found that a supporting policy framework for CCUS is taking embryonic form in China.More than ten departments of the central government have involved CCUS in their policies,of which the State Council,the National Development and Reform Commission(NDRC),the Ministry of Science and Technology(MOST),and the Ministry of Ecological Environment(MEE)have given the greatest attention with different focuses.Specific policy terms are further analyzed following the method of content analysis and categorized into supply-,environment-and demand-type policies.The results indicate that supply-type policies are unbalanced in policy objectives,as policy terms on technology research and demonstration greatly outnumber those on other objectives,and the attention to weak links and industrial sectors is far from sufficient.Environment-type policies,especially legislations,standards,and incentives,are inadequate in pertinence and operability.Demand-type policies are absent in the current policy system but is essential to drive the demand for the CCUS technology in domestic and foreign markets.To meet the reduction demand of China's carbon neutral goal,policies need to be tailored according to needs of each specific technology and implemented in an orderly manner with well-balanced use on multiple objectives.Qiao MA Shan WANG Yan FU Wenlong ZHOU Mingwei SHI Xueting PENG Haodong LV Weichen ZHAO Xian ZHANG 2023Frontiers in Energy2023,17,3:1
20Ion-specific effects in confined nanochannels and neural显示文摘Since the discovery of biological ion channels and their role in physiology,scientists have been trying to create artificial structures that mimic biological ion channels.Nanochannels such as biological/solid-state nanopores and porous nanostructures can have fine-tuned ion behaviors in a confined space where ions are“aggregated”.Thus,one of the most exciting applications of nanochannels is artificial neurons and neural network based on the ion-specific effects and nanofluidics.In this review article,it is the first time that the ion aggregation behaviors inside the confined nanochannels are summarized,and their connection to neuroscience,especially the artificial neurons and neural network,is explored and envisioned.Weichen Wei Xuejiao Wang 2023Aggregate2023,4,2:0
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