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13篇 您的检索式:作者名="Wenwei TIAN"
    题名 作者 年代 出处 被引量
1Kupffer cell‐derived IL‐10 plays a key role in maintaining humoral immune tolerance in hepatitis B virus‐persistent mice显示文摘Long Xu Wenwei Yin Rui Sun Haiming Wei Zhigang Tian 2014Hepatology2014,,2:1
2Synthesis and regulation between NaH(ZnPO4)2 and α-hopeite via a solid state reaction at low-heating temperatures显示文摘Liao Sen Tian Xiaozhen Wu Wenwei 2008Chin J Chem2008,26,:1
3Transient-Spatial Pattern Mining of Eddy Current Pulsed Thermography Using Wavelet Transform显示文摘Eddy current pulsed thermography(ECPT) is an emerging Non-destructive testing and evaluation(NDT & E) technique, which uses hybrid eddy current and thermography NDT & E techniques that enhances the detectability from their compensation. Currently, this technique is limited by the manual selection of proper contrast frames and the issue of improving the efficiency of defect detection of complex structure samples remains a challenge. In order to select a specific frame from transient thermal image sequences to maximize the contrast of thermal variation and defect pattern from complex structure samples, an energy driven approach to compute the coefficient energy of wavelet transform is proposed which has the potential of automatically selecting both optimal transient frame and spatial scale for defect detection using ECPT. According to analysis of the variation of different frequency component and the comparison study of the detection performance of different scale and wavelets, the frame at the end of heating phase is automatically selected as an optimal transient frame for defect detection. In addition, the detection capabilities of the complex structure samples can be enhanced through proper spatial scale and wavelet selection. The proposed method has successfully been applied to low speed impact damage detection of carbon fibre reinforced polymer(CFRP) composite as well as providing the guidance to improve the detectability of ECPT technique.YANG Hailong GAO Bin TIAN Guiyun REN Wenwei WOO Wai Lok 2014Chinese Journal of Mechanical Engineering2014,27,4:1
4Blocking the Natural Killer (NK) Cell Inhibitory Receptor NKG2A Increases Activity of Human NK Cells and Clears HBV Infection in Mice显示文摘Fenglei Li Hairong Wei Haiming Wei Yufeng Gao Long Xu Wenwei Yin Rui Sun Zhigang Tian 2012Gastroenterology2012,,:1
5Heating Lithium-Ion Batteries at Low Temperatures for Onboard Applications:Recent Progress,Challenges and Prospects显示文摘Lithium-ion batteries(LIBs)are commonly used in electric vehicles(EVs)due to their good performance,long lifecycle,and environmentally friendly merits.Heating LIBs at low temperatures before operation is vitally important to protect the battery from serious capacity degradation and safety hazards.This paper reviews recent progress on heating methods that can be used onboard.The existing methods are divided into two categories,namely external heating methods and internal heating methods,mechanisms,advantages and limitations of each method are systematically reviewed.Then,the rates of temperature rise,energy consumptions,and maximum temperature gradient of different methods are quantitatively summa-rized to compare the heating performances of each method.In addition,features related to the onboard application of each method are qualitatively compared,which is essential for the rapid cold start of EVs in frigid weather.Finally,prospects of external and internal heating methods are given.This paper aims to provide researchers and engineers with guidelines about how to select a method based on their requirements and application environments.Cheng Lin Weifeng Kong Yu Tian Wenwei Wang Mingjie Zhao 2022Automotive Innovation2022,5,1:1
6Quanti- tative Non-destructive Evaluation Method for Impact Damage Using Eddy Current Pulsed Thermog: raphy显示文摘Ren Wenwei Liu Jia Tian Gui Yun 2013Composites: Part B2013,54,:1
7Quantitative non-destructive evaluation method for impact damage using eddy current pulsed thermography显示文摘REN Wenwei LIU Jia TIAN Guiyun 2013Composites Part B:Engineering2013,54,11:1
8Recovery of Four COVID-19 Patients via Ozonated Autohemotherapy显示文摘Severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)is an enveloped RNA betacoronavirus,1 that has spread globally since December 2019.As of July 22,2020,more than 14,000,000 confirmed cases and 607,781 deaths from COVID-19 have been reported to the World Health Organization from 216 areas and territories.2 Patientswithmore prominent laboratory abnormalities may develop acute respiratory distress syndrome(ARDS),which potentially leads tomultiple organ failure and death.1,3 However,at present,there are no regulatory approved antiviralmedicines,vaccines,or specific clinical treatments for COVID-19.Junping Wu Cherie S.Tan Hongzhi Yu Youwei Wang Yutao Tian Wenwei Shao Yifei Zhang Kuo Zhang Hongxia Shao Guangjian Ni Jun Shen Antonio Carlo Galoforo Qi Wu Dong Ming 2020The Innovation2020,1,3:1
9Expert consensus on prevention and cardiopulmonary resuscitation for cardiac arrest in COVID-19显示文摘Background:Cardiopulmonary resuscitation(CPR)strategies in COVID-19 patients differ from those in patients suffering from cardiogenic cardiac arrest.During CPR,both healthcare and non-healthcare workers who provide resuscitation are at risk of infection.The Working Group for Expert Consensus on Prevention and Cardiopulmonary Resuscitation for Cardiac Arrest in COVID-19 has developed this Chinese Expert Consensus to guide clinical practice of CPR in COVID-19 patients.Main recommendations:1)A medical team should be assigned to evaluate severe and critical COVID-19 for early monitoring of cardiac-arrest warning signs.2)Psychological counseling and treatment are highly recommended,since sympathetic and vagal abnormalities induced by psychological stress from the COVID-19 pandemic can induce cardiac arrest.3)Healthcare workers should wear personal protective equipment(PPE).4)Mouth-to-mouth ventilation should be avoided on patients suspected of having or diagnosed with COVID-19.5)Hands-only chest compression and mechanical chest compression are recommended.6)Tracheal-intubation procedures should be optimized and tracheal-intubation strategies should be implemented early.7)CPR should be provided for 20-30 min.8)Various factors should be taken into consideration such as the interests of patients and family members,ethics,transmission risks,and laws and regulations governing infectious disease control.Changes in management:The following changes or modifications to CPR strategy in COVID-19 patients are proposed:1)Healthcare workers should wear PPE.2)Hands-only chest compression and mechanical chest compression can be implemented to reduce or avoid the spread of viruses by aerosols.3)Both the benefits to patients and the risk of infection should be considered.4)Hhealthcare workers should be fully aware of and trained in CPR strategies and procedures specifically for patients with COVID-19.Wei Song Jie Wei Xiangdong Jian Deren Wang Yanhong Ouyang Yuanshui Liu Xianjin Du Ying Chen Yingqi Zhang Heping Xu Shuming Xianyu Qiong Ning Xiang Li Xiaotong Han Feng Zhan Tao Yu Wenteng Chen Jun Zhang Wenwei Cai Sheng’ang Zhou Shengyang Yi Yu Cao Xiaobei Chen Shunjiang Xu Zong’an Liang Duohu Wu Fen Ai Zhong Wang Qingyi Meng Yuhong Mi Sisen Zhang Rongjia Yang Shouchun Yan Wenbin Han Yong Lin Chuanyun Qian Wenwu Zhang Yan Xiong Jun Lv Baochi Liu Yan Cao Xiaojun He Xuelian Sun Yufang Cao Tian’en Zhou 2021Asian Pacific Journal of Tropical Medicine2021,14,6:0
10Enhanced wide-angle third-harmonic generation in flat-band-engineered quasi-BIC metagratings显示文摘Nonlinear metasurfaces and photonic crystals provide a significant way to generate and manipulate nonlinear signals owing to the resonance-and symmetry-based light-matter interactions supported by the artificial structures.However,the nonlinear conversion efficiency is generally limited by the angular dispersion of optical resonances especially in nonparaxial photonics.Here,we propose a metagrating realizing a quasi-bound-state in the continuum in a flat band to dramatically improve the third harmonic generation(THG)efficiency.A superior operating angular range is achieved based on the interlayer and intralayer couplings,which are introduced by breaking the mirror symmetry of the metagrating.We demonstrate the relation of angular dispersion between the nonlinear and linear responses at different incident angles.We also elucidate the mechanism of these offaxis flat-band-based nonlinear conversions through different mode decomposition.Our scheme provides a robust and analytical way for nonparaxial nonlinear generation and paves the way for further applications such as wide-angle nonlinear information transmission and enhanced nonlinear generation under tight focusing.Yijia Zang Ruoheng Chai Wenwei Liu Zhancheng Li Hua Cheng Jianguo Tian Shuqi Chen 2024Science China(Physics,Mechanics & Astronomy)2024,67,4:0
11Characteristics of Gray Skin Chewing Sugarcane and Its Precise Cultivation Techniques显示文摘[Objectives] The aim was to provide technical supports for the popularization and application of gray skin chewing sugarcane in large areas in suitable regions. [Methods] Field planting tests were conducted in 2012-2016 to study the yield,major economic traits,disease resistances,growth periods,adaptability and cultivation techniques of gray skin chewing sugarcane. [Results]The characteristics and a set of precise cultivation techniques for gray skin chewing sugarcane were summarized. [Conclusions] The technology can be widely applied in the areas with altitude of less than 1 500 m and areas with similar climate in Yunnan Province.Zhiming YANG Lin ZENG Xiao ZHAO Shunsheng LU Yunfei SONG Chaozhong ZHANG Wenwei TIAN 2018Agricultural Biotechnology2018,7,4:0
12Research on Electromagnetic Loss Characteristics of Submarine Cables显示文摘The electromagnetic losses of submarine cables are mainly caused by the metal shielding layer to prevent the water tree effect and the armor layer that strengthens the strength of the submarine cables.While these losses cause the temperature of submarine cable to rise,and temperature variation will in turn change the conductivity of its metal layer material.In this paper,the electric-magnetic-thermal multi-physical field coupling of the electromagnetic loss variation of the submarine cable is realized by establishing a full coupling system containing Fourier’s law and Maxwell-Ampère’s Law for the photoelectric composite submarine cable.The multi-physical field coupling model is solved and analyzed by using the finite elementmethod.Firstly,the loss of each layer of the optoelectronic composite submarine cable is analyzed,and the lossof eachlayer of the submarine cable and themainfactors leading to the loss of the submarine cable are given.Secondly,the influence of environmental temperature,ampacity and armor layer on the electromagnetic loss of submarine cables is studied,and the main operating factors affecting the electromagnetic loss of submarine cables are summarized.The research shows that the influence of ambient temperature can be ignored,and the loss of shielding layer and armor layer increases with the increase of ampacity,but the impact of shielding layer loss is greater.Finally,this paper studies the electromagnetic loss of each metal layer of the submarine cable and the influence of the laying spacing on the electromagnetic loss.The research results show that the two ways of improving the conductivity of the armor layer and reducing the relative permeability of the armor layer can effectively reduce the loss of each metal layer in the cable structure and increase the current carrying capacity when the tensile strength of the armor layer meets the requirements for single-core and threecore photoelectric composite submarine cables laid horizontally.At the same time,increasing the laying spacing will increase the loss,but it can improve the overall current carrying capacity of the cable.The research in this paper provides a theoretical basis for the design of submarine cable carrying capacity,and also provides a reference for the optimization design of submarine cable structures.Liuhuo Wang Qingcui Liu Wenwei Zhu Yanru Wang Yi Tian Long Zhao 2023Energy Engineering2023,120,11:0
13Electromagnetic wave manipulation based on few-layer metasurfaces and polyatomic metasurfaces显示文摘Metasurfaces,whose electromagnetic(EM)responses can be artificially designed,are two-dimensional arrays composed of subwavelength nanostructures.Accompanied by various fascinating developments in the past decade,metasurfaces have been proved as a powerful platform for the implementation of EM wave manipula-tion.However,the planar monoatomic metasurfaces widely used in previous works have limited design freedoms,resulting in some disadvantages for the realization of high-performance and new functional EM wave control.The latest developments show that few-layer metasurfaces and polyatomic metasurfaces are good alternatives to overcome the drawbacks of planar monoatomic metasurfaces and realize high-efficient,multi-band and broad-band EM functionalities.They provide additional degrees of design freedom via introducing multilayer layouts or combining multiple meta-atoms into a unit cell respectively.Here,recent advances of few-layer and polyatomic metasurfaces are reviewed.The design strategies,EM properties and main advantages of few-layer metasurfaces and polyatomic metasurfaces are overviewed firstly.Then,few-layer metasurfaces and polyatomic metasurfaces in recent progress for EM wave manipulation are classified and discussed from the viewpoint of their design strategy.At last,an outlook on future development trends and potential applications in these fast-developing research areas is presented.Shiwang Yu Jiaqi Cheng Zhancheng Li Wenwei Liu Hua Cheng Jianguo Tian Shuqi Chen 2022ChemPhysMater2022,1,1:0
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