|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Early warning for geo-hazards based on the weather condition in China显示文摘According to national early warning practice for geo-hazards from 2003 to 2005,it is systematically concluded that the basic characteristics of geo-hazards,early warning method and forecast result based on the geological maps of China in a scale 1∶6 000 000.With the contrast of different characters between sustained rainfall and typhoon rainfall inducing geo-hazards,the disaster reduction result and some problems are preliminarily analyzed.Some basic recognition is that early warning to geo-hazards is feasible,national scale forecast is only to call attention,but can't immediately be used to disaster reduction decision-making.And,the future direction is to build a united disaster reduction framework of early warning system including national,provincial and county levels based on weather factors in different scale of area. | Chuanzheng LIU Yanhui LIU Mingsheng WEN Can TANG Tiefeng LI Jianfa LIAN | 2006 | Global Geology2006，9，2： | 9 |
| 2 | Electro-mechanically controlled assembly of reconfigurable 3D mesostructures and electronic devices based on dielectric elastomer platforms显示文摘The manufacture of 3D mesostructures is receiving rapidly increasing attention,because of the fundamental significance and practical applications across wide-ranging areas.The recently developed approach of buckling-guided assembly allows deterministic formation of complex 3D mesostructures in a broad set of functional materials;with feature sizes spanning nanoscale to centimeter-scale.Previous studies mostly exploited mechanically controlled assembly platforms using elastomer substrates;which limits the capabilities to achieve on-demand local assembly;and to reshape assembled mesostructures into distinct 3D configurations.This work introduces a set of design concepts and assembly strategies to utilize dielectric elastomer actuators as powerful platforms for the electro-mechanically controlled 3D assembly.Capabilities of sequential-local loading with desired strain distributions allow access to precisely tailored 3D mesostructures that can be reshaped into distinct geometries,as demonstrated by experimental and theoretical studies of?30 examples.A reconfigurable inductive-capacitive radio-frequency circuit consisting of morphable 3D capacitors serves as an application example. | Wenbo Pang Xu Cheng Haojie Zhao Xiaogang Guo Ziyao Ji Guorui Li Yiming Liang Zhaoguo Xue Honglie Song Fan Zhang Zheng Xu Lei Sang Wen Huang Tiefeng Li Yihui Zhang | 2020 | National Science Review2020，7，2： | 8 |
| 3 | Highly stable lead-free Cs3Bi2I9 perovskite nanoplates for photodetection applications显示文摘Lead halide perovskites have received tremendous attentions recently for their excellent properties such as high light absorption coefficient and long charge carrier diffusion length. However, the stability issues and the existence of toxic lead cations have largely limited their applications in optoelectronic area. Herein, we report the synthesis and investigation of highly stable and lead-free Cs3Bi2I9 perovskite nanoplates for visible light photodetection applications. The Cs3Bi2I9 nanoplates were synthesized through a facile solution-processed method, which is also applicable to various substrates. The achieved nanoplates present very good crystal quality and exhibit excellent long-term stability even exposed in moist air for several months. Photodetectors were constructed based on these high-quality perovskite nanoplates for the first time, and display a maximum photoresponsivity of 33.1 mA/W under the illumination of 450 nm laser, which is six times higher than the solution-synthesized CH3NH3PbI3 nanowire photodetectors. The specific detectivity of these devices can reach up to 10^10 Jones. Additionally, the devices exhibit fast rise and decay time of 10.2 and 37.2 ms, respectively, and highly stable photoswitching behavior with their photoresponse well retaining under alternating light and darkness. This work opens up a new opportunity for stable and low-toxic perovskite-based optoelectronic applications. | Zhaoyang Qi Xianwei Fu Tiefeng Yang Dong Li Peng Fan Honglai Li Feng Jiang Lihui Li Ziyu Luo Xiujuan Zhuang Anlian Pan | 2019 | Nano Research2019，12，8： | 7 |
| 4 | X-Mechanics——An endless frontier显示文摘In contrast to the conventional wisdom that mechanics is a relatively mature subject, the new manifestation of mechanics in an extended or crossed form is unfolding. Mechanics is now powering all subjects, from physical sciences, life sciences to social sciences. We name this new phase for the development of mechanics X-Mechanics. The present article outlines the contents of X-Mechanics from four aspects: cross media, cross scales, cross compliances, and cross cyber/physical spaces. X-Mechanics constitutes an endless frontier of science and technology. | Wei Yang HongTao Wang TieFeng Li ShaoXing Qu | 2019 | Science China(Physics,Mechanics & Astronomy)2019，62，1： | 6 |
| 5 | RATE DEPENDENT STRESS-STRETCH RELATION OF DIELECTRIC ELASTOMERS SUBJECTED TO PURE SHEAR LIKE LOADING AND ELECTRIC FIELD显示文摘The performance of dielectric elastomer(DE) transducers is significantly affected by viscoelastic relaxation-induced electromechanical dissipations.This paper presents an experimental study to obtain the rate dependent stress-stretch relation of DE membranes(VHB TM 9473) subjected to pure shear like loading and electric loading simultaneously.Stretching rate dependent behavior is observed.The results also show that the tensile force decreases as the voltage increases.The observations are compared with predictions by a viscoelastic model of DE.This experiment may be used for further studies of dynamic electromechanical coupling properties of DEs. | Shaoxing Qu Ke Li Tiefeng Li Hanqing Jiang Miao Wang Zhenhua Li | 2012 | Acta Mechanica Solida Sinica2012，25，5： | 5 |
| 6 | Intrinsic Kinetic Modeling of Thermal Dimerization of C5 Fraction显示文摘This work aims to investigate the intrinsic kinetics of thermal dimerization of C_5 fraction in the reactive distillation process. Experiments are conducted in an 1000-m L stainless steel autoclave under some selected design conditions. By means of the weighted least squares method, the intrinsic kinetics of thermal dimerization of C_5 fraction is established, and the corresponding pre-exponential factor as well as the activation energy are determined. For example, the pre-exponential factor A is equal to 4.39×105 and the activation energy E4 a is equal to 6.58×10J/mol for the cyclopentadiene dimerization reaction. The comparison between the experimental and calculated results shows that the kinetics model derived in this work is accurate and reliable, which can be used in the design of reactive distillation columns. | Guo Liang Wang Tiefeng Li Dongfeng Wang Jinfu | 2016 | China Petroleum Processing & Petrochemical Technology2016，18，1： | 4 |
| 7 | Review of Soft Linear Actuator and the Design of a Dielectric Elastomer Linear Actuator显示文摘Natural muscle provides excellent motilities for animals.As the basic unit of the muscle system,the skeletal muscle fibers function as a soft linear actuator.Inspired by the muscle fibers,researchers have developed various soft active devices with linear actuation.This paper reviews several soft linear actu ators,such as the dielec trie elastomer,t hermal responsive hydrogels,pneumatic artificial muscle,and conducting polymers.The actuation mechanisms and performances of these soft linear actuators are summarized.Based on the dielectric elastomer,we propose a design of a hybrid system with linear actuation,driven by both the electric motor and dielectric elasto mer cone.The elec tromechanical behaviors of the dielec trie elastomer cone have been investigated in both experiment and finite element analysis.This work may guide the further design of soft actuators and robots. | Xunuo Cao Mingqi Zhang Zhen Zhang Yi Xu Youhua Xiao Tiefeng Li | 2019 | Acta Mechanica Solida Sinica2019，32，5： | 4 |
| 8 | Suggestions for Conducting a Reading Comprehension Lesson显示文摘I. Aims and Content of a Reading Comprehension Lesson As stated in the New English Course curriculum, 'the aim of senior school English teaching is to develop students' overall abilities of listening, speaking, reading and writing, with more emphasis on reading'. The main task of a reading comprehension lesson is to develop students' reading ability and help them form good habit of reading. Enabling | Li Tiefeng | 2006 | 基础教育外语教学研究2006，，5： | 2 |
| 9 | Recentadvancesincarbon‐basedmaterials for solar‐driven interfacial photothermal conversion water evaporation:Assemblies,structures,applications,and prospective显示文摘The shortage of fresh water in the world has brought upon a serious crisis to human health and economic development.Solar‐driven interfacial photothermal conversion water evaporation including evaporating seawater,lake water,or river water has been recognized as an environmentally friendly process for obtaining clean water in a low‐cost way.However,water transport is restricted by itself by solar energy absorption capacity's limits,especially for finite evaporation rates and insufficient working life.Therefore,it is important to seek photothermal conversion materials that can efficiently absorb solar energy and reasonably design solar‐driven interfacial photothermal conversion water evaporation devices.This paper reviews the research progress of carbon‐based photothermal conversion materials and the mechanism for solar‐driven interfacial photothermal conversion water evaporation,as well as the summary of the design and development of the devices.Based on the research progress and achievements of photothermal conversion materials and devices in the fields of seawater desalination and photothermal electric energy generation in recent years,the challenges and opportunities faced by carbon‐based photothermal conversion materials and devices are discussed.The prospect of the practical application of solar‐driven interfacial photothermal conversion evaporation technology is foreseen,and theoretical guidance is provided for the further development of this technology. | Yanmin Li Yanying Shi Haiwen Wang Tiefeng Liu Xiuwen Zheng Shanmin Gao Jun Lu | 2023 | Carbon Energy2023，5，11： | 2 |
| 10 | Liquid-holdup regions research of novel reactive distillation column for C5 fraction separation显示文摘Recent advances in technologies of reactive distillation(RD) offer various design concepts for chemical processes.For separation of cracking C5 fraction, one of the main challenges is improving the conversion of cyclopentadiene(CPD) and the recovery of isoprene(IP). In the current work, a novel reactive distillation column with several liquid-holdup regions was designed, since it allows long residence time and provides flexibility for narrowing the efficiency gap between reaction and distillation. By use of Aspen Plus, a corresponding mathematic model was established and verified to be accurate. Following that, comprehensive studies were carried out for the design of liquid-holdup regions position. Details and principles about the separation performance with the liquid-holdup regions were revealed and optimized parameters were determined with 100 theoretical plates,feed position of 35 th plate, and four liquid-holdup regions at 25 th, 60 th, 75 th and 90 th plate. The designed RD column could well meet the technical requirement, and influence of other important factors including residence time, operating pressure and reflux ratio was further investigated. | Liang Guo Tiefeng Wang Dongfeng Li Jinfu Wang | 2017 | Chinese Journal of Chemical Engineering2017，25，4： | 2 |
| 11 | Cy5.5-MSA-G250 nanoparticles(CMGNPs)induce M1 polarity of RAW264. 7 macrophage cells via TLR4-dependent manner显示文摘Cy5.5-MSA-G250 nanoparticles(CMGNPs)had been proved to have unique advantages for cancer treatment,including excellent photothermal performance,tumor cell-selective cytotoxicity,direct visualization,and good biocompatibility.However,to cellular systems,the CMGNPs are considered as fo reign invaders,and the effect of CMGNPs on immunity system is still unknown.Therefore,more efforts are needed to understand the role of CMGNPs on the immunity system.In this study,we attempted to screen the pro-inflammatory responses on RAW264.7 macrophages after treated with the CMGNPs.In vitro experiments clearly showed that CMGNPs not only enhances phagocytosis capacity of RAW264.7 cells,but also promotes Ml polarization,associated with changes in cell morphology and increased expression of inflammatory cytokines.This ability to induce Ml polarization may be beneficial to CMGNPs to achieve better anticancer effects in clinical trials.Moreover,the observed Ml macrophages’ polarization triggered by CMGNPs can be abolished after adding TLR4 inhibitor,CLI095,suggesting that TLR4 is involved in CMGNP-induced inflammation. | Zhuoxuan Lu Lingfeng Xu Nongyue He Fengying Huang Tiefeng Xu Li Li Yanwei Zhang Liming Zhang | 2019 | Chinese Chemical Letters2019，30，6： | 2 |
| 12 | Recycling of SIC14 in the manufacture of granular polysilicon in a fluid- ized bed reaetor显示文摘 | WANG Chenjing WANG Tiefeng LI Peilong | 2013 | Chem Eng J2013，220，3： | 1 |
| 13 | Complete convergence and almost sure convergence of weighted sums of random variables显示文摘 | Deli Li M. Bhaskara Rao Tiefeng Jiang Xiangchen Wang | 1995 | Journal of Theoretical Probability1995，，1： | 1 |
| 14 | Complete convergence and almost sure convergence of weighted sums of random variables显示文摘 | Deli Li M. Bhaskara Rao Tiefeng Jiang Xiangchen Wang | 1995 | Journal of Theoretical Probability1995，，1： | 1 |
| 15 | A Lower-power register file based on complementary pass-transistor adiabatic logic显示文摘 | Hu Jiangping Xu Tiefeng Li Hong | 2005 | IEICE Trans on Information and Systems2005，88，7： | 1 |
| 16 | α-Fe_2O_3 nanoplates with superior electrochemical performance for lithium-ion batteries显示文摘On account of the high theoretical capacity, high corrosion resistance, environmental benignity, abundant availability and low cost, the research on a-Fe_2O_3 has been gradually fastened on as promising anodes materials toward lithium-ion batteries(LIBs). A high-performance anode for LIBs based on α-Fe_2O_3 nanoplates have been selectively prepared. The α-Fe_2O_3 nanoplates can be synthesized with iron ionbased ionic liquid as iron source and template. The α-Fe_2O_3 nanoplates as the anode of LIBs can display high capacity of around1950 mAh g^(-1) at 0.5 A g^(-1) which have exceeded the theoretical capacity of α-Fe_2O_3. On account of unique nanoplate structures and gum arabic as binder, the α-Fe_2O_3 nanoplates also exhibit high rate capability and excellent cycling performance. | Li Xu Yuhui Tian Tiefeng Liu Henan Li Jingxia Qiu Sheng Li Huaming Li Shouqi Yuan Shanqing Zhang | 2018 | Green Energy & Environment2018，3，2： | 1 |
| 17 | The expression and function of microRNA-203 in lung cancer显示文摘 | Jianhua Jin Jianzhong Deng Fang Wang Xiyi Xia Tiefeng Qiu Wenbin Lu Xianwen Li Hua Zhang Xiaoyan Gu Yungang Liu Weiguo Cao Wenlong Shao | 2013 | Tumor Biology2013，，： | 1 |
| 18 | Analysis of Heading Stability due to Interactions between Pectoral and Caudal Fins in Robotic Boxfish Locomotion显示文摘Investigating the interaction between fins can guide the design and enhance the performance of robotic fish.In this paper,we take boxfish as the bionic object and discuss the effect of coupling motion gaits among the two primary propulsors,pectoral and caudal fins,on the heading stability of the body.First,we propose the structure and control system of the bionic boxfish prototype.Second,using a one/two-way fluid–structure interaction numerical method,we analyse the key parameters of the prototype and discuss the influence of pectoral and caudal motion gaits on the hydrodynamic performance.Finally,effect of the pectoral and caudal interactions on heading stability of the prototype is systematically analyzed and verified in experiments.Results show that the course-deviating degree,oscillation amplitudes of yawing,rolling,and pitching exhibited by the prototype are smaller than that caused by single propulsor when the motion gaits of both pectoral and caudal fins are coordinated in a specific range.This paper reveals for the first time the effect of interactions between pectoral and caudal fins,on the stability of body's course by means of Computational Fluid Dynamics and prototype experiments,which provides an essential guidance for the design of robotic fish propelled by multi-fins. | Hongcheng Qiu Lingkun Chen Xinshuo Ma Shusheng Bi Bo Wang Tiefeng Li | 2023 | Journal of Bionic Engineering2023，20，1： | 1 |
| 19 | Spectroscopic properties and thermal stability of Er^3+ - doped TeO2 - B2O3 - Nb2O5 - ZnO glass for potential WDM amplifier 显示文摘 | Xu Tiefeng Zhang Xudong LI Guangpo | 2007 | Spectrochimica Acta Part A2007，67，2： | 1 |
| 20 | Preclinical characterization and anti-SARS-CoV-2 efficacy of ATV014:an oral cyclohexanecarboxylate prodrug of 1′-CN-4-aza-7,9-dideazaadenosine C-nucleoside显示文摘Dear Editor,Severe acute respiratory syndrome coronavirus 2(SARS-CoV-2),the causative agent of the global pandemic coronavirus disease 2019(COVID-19),has proven itself to be a highly virulent respiratory pathogen with an unpredictable evolutionary capacity,posing a persistent threat to mankind.At the time of this manuscript’s publication. | Qifan Zhou Sidi Yang Liu Cao Yang Yang Tiefeng Xu Qishu Chen Hongzhou Lu Yingjun Li Deyin Guo Xumu Zhang | 2023 | Signal Transduction and Targeted Therapy2023，8，2： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员