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| 1 | Aerodynamic Design Methodology for Blended Wing Body Transport显示文摘This paper puts forward a design idea for blended wing body(BWB).The idea is described as that cruise point,maximum lift to drag point and pitch trim point are in the same flight attitude.According to this design idea,design objectives and constraints are defined.By applying low and high fidelity aerodynamic analysis tools,BWB aerodynamic design methodology is established by the combination of optimization design and inverse design methods.High lift to drag ratio,pitch trim and acceptable buffet margin can be achieved by this design methodology.For 300-passenger BWB configuration based on static stability design,as compared with initial configuration,the maximum lift to drag ratio and pitch trim are achieved at cruise condition,zero lift pitching moment is positive,and buffet characteristics is well.Fuel burn of 300-passenger BWB configuration is also significantly reduced as compared with conventional civil transports.Because aerodynamic design is carried out under the constraints of BWB design requirements,the design configuration fulfills the demands for interior layout and provides a solid foundation for continuous work. | LI Peifeng ZHANG Binqian CHEN Yingchun YUAN Changsheng LIN Yu | 2012 | Chinese Journal of Aeronautics2012，25，4： | 29 |
| 2 | Review on evolution and evaluation of asphalt pavement structures and materials显示文摘The purpose of this study was to summarize the wide-range literatures on asphalt pavements, explore the evolution of road pavements, analyze typical asphalt pavement structures, highlight current trends in research and industry, and to recommend future areas of research and development. In this research, road pavement evolution was explored from the earliest roads to the modern pavements. A new method was recommended to categorize asphalt pavement materials into the three large families which may be further sub-divided according to their mechanical parameters. A unified asphalt pavement classification(UAPC) method was proposed and the worldwide asphalt pavements could be divided into six types through the new method. Based o n the UAPC method, 1087 asphalt pavement structures were classified and analyzed to explore the asphalt thickness variation. In order to evaluate asphalt pavement performance, the Chinese design specification was employed for analyzing lives of 29 high-volume pavements and 28 low-volume pavements. Through this research, it was found that:(1) in the past 100 years, asphalt pavement materials and structures had been becoming more and more strong;(2) asphalt layer thicknesses were various from 5 to 60 cm and the overall pavement thicknesses were various from 28 to 160 cm;(3) the long-life pavements in the other countries may become'shorter-life' pavements according to the prediction based on the Chinese specification. | Yu Liu Peifeng Su Miaomiao Li Zhanping You Mohan Zhao | 2020 | Journal of Traffic and Transportation Engineering(English Edition)2020，7，5： | 6 |
| 3 | Enhanced photoresponse of Cu2O/ZnO heterojunction with piezo-modulated interface engineering显示文摘 | Pei Lin Xiang Chen Xiaoqin Yan Zheng Zhang Haoge Yuan Peifeng Li Yanguang Zhao Yue Zhang | 2014 | Nano Research2014，7，6： | 6 |
| 4 | Superior adsorption performance of graphitic carbon nitride nanosheets for both cationic and anionic heavy metals from wastewater显示文摘Water pollution caused by highly toxic Cd(II), Pb(II), and Cr(VI) is a serious problem. In the present work,a green and low-cost adsorbent of g-C_3N_4 nanosheets was developed with superior capacity for both cationic and anionic heavy metals. The adsorbent was easily fabricated through one-step calcination of guanidine hydrochloride with thickness less than 1.6 nm and specific surface area of 111.2 m^2·g^(-1). Kinetic and isotherm studies suggest that the adsorption is an endothermic chemisorption process, occurring on the energetically heterogeneous surface based on a hybrid mechanism of multilayer and monolayer adsorption. The tri-s-triazine units and surface N-containing groups of g-C_3N_4 nanosheets are proposed to be responsible for the adsorption process.Further study on pH demonstrates that electrostatic interaction plays an important role. The maximum adsorption capacity of Cd(II), Pb(II), and Cr(VI) on g-C_3N_4 nanosheets is 123.205 mg·g^(-1), 136.571 mg·g^(-1),and 684.451 mg·g^(-1), respectively. The better adsorption performance of the adsorbent than that of the recently reported nanomaterials and low-cost adsorbents proves its great application potential in the removal of heavy metal contaminants from wastewater. The present paper developed a promising adsorbent which will certainly find applications in wastewater treatment and also provides guiding significance in designing adsorption processes. | Gang Xiao Yaoqiang Wang Shengnan Xu Peifeng Li Chen Yang Yu Jin Qiufeng Sun Haijia Su | 2019 | Chinese Journal of Chemical Engineering2019，27，2： | 5 |
| 5 | 7,8-Dihydroxyflavone suppresses proliferation and induces apoptosis of human osteosarcoma cells显示文摘Recent studies suggest that 7,8-dihydroxyflavone(7,8-DHF)inhibits the development of several tumors.However,its role in osteosarcoma(OS)remains unknown.This study was designed to investigate the effects and underlying mechanisms of 7,8-DHF that may influence OS development.Human OS cell lines(U2OS and 143B)were treated with 7,8-DHF;cell viability and cell migration were assessed by methylthiazolyldiphenyl-tetrazolium bromide(MTT)assay and wound-healing assay,respectively;and cell death and apoptosis were evaluated by LIVE/DEAD staining and terminal deoxynucleotidyl transferase(TdT)dUTP nick-end labeling(TUNEL)assay,respectively.Reactive oxygen species production was measured using 2,7-dichlorodihydrofluorescein diacetate probe.Akt,Bcl-xL/Bcl-2 asociated death promoter(Bad),p38 mitogen-activated protein kinase(MAPK),extracellular regulated protein kinase(ERK),and c-Jun N-terminal kinase(JNK)expression and their respective phosphorylation levels were detected by western blot analysis.We found that 7,8-DHF reduced cell viability in a dose-dependent manner and also promoted apoptosis,inhibited migration,and induced oxidative stress in OS cells.Moreover,7,8-DHF inhibited Akt,Bad,and p38MAPK,but activated ERK and JNK signals.In summary,our results suggest that 7,8-DHF inhibits OS progression,possibly by regulating Akt/Bad and MAPK signaling.These findings provide new evidence for the pharmacological effects of 7,8-DHF that may improve drug therapy for OS patients. | Jing Zhao Peifeng Li Hua Zhu Fengqin Ge Jie Liu Jingjun Xia Pengzhou Hang | 2021 | Acta Biochimica et Biophysica Sinica2021，53，7： | 3 |
| 6 | CRISPR/Cas systems for the detection of nucleic acid and nonnucleic acid targets显示文摘Clustered regularly interspaced short palindromic repeats(CRISPR)/CRISPR-associated(Cas)systems are becoming powerful tools for disease biomarkers detection.Due to the specific recognition,cis-cleavage and nonspecific trans-cleavage capabilities,CRISPR/Cas systems have implemented the detection of nucleic acid targets(DNA and RNA)as well as non-nucleic acid targets(e.g.,proteins,exosomes,cells,and small molecules).In this review,we first summarize the principles and characteristics of various CRISPR/Cas systems,including CRISPR/Cas9,Cas12,Cas13 and Cas14 systems.Then,various types of applications of CRISPR/Cas systems used in detecting nucleic and non-nucleic acid targets are introduced emphatically.Finally,the prospects and challenges of their applications in biosensing are discussed. | Weiran Su Junru Li Chen Ji Congshuo Chen Yuzheng Wang Huili Dai Fengqin Li Peifeng Liu | 2023 | Nano Research2023，16，7： | 3 |
| 7 | Simulation and Experiment Research of Aerodynamic Performance of Small Axial Fans with Struts显示文摘Interaction between rotor and struts has great effect on the performance of small axial fan systems.The small axial fan systems are selected as the studied objects in this paper,and four square struts are downstream of the rotor.The cross section of the struts is changed to the cylindrical shapes for the investigation:one is in the same hydraulic diameter as the square struts and another one is in the same cross section as the square struts.Influence of the shape of the struts on the static pressure characteristics,the internal flow and the sound emission of the small axial fans are studied.Standard K-ε turbulence model and SIMPLE algorithm are applied in the calculation of the steady fluid field,and the curves of the pressure rising against the flow rate are obtained,which demonstrates that the simulation results are in nice consistence with the experimental data.The steady calculation results are set as the initial field in the unsteady calculation.Large eddy simulation and PISO algorithm are used in the transient calculation,and the Ffowcs Williams-Hawkings model is introduced to predict the sound level at the eight monitoring points.The research results show that:the static pressure coefficients of the fan with cylindrical struts increase by about 25%compared to the fan with square struts,and the efficiencies increase by about 28.6%.The research provides a theoretical guide for shape optimization and noise reduction of small axial fan with struts. | CHU Wei LIN Peifeng ZHANG Li JIN Yingzi WANG Yanping Heuy Dong Kim Toshiaki Setoguchi | 2016 | Journal of Thermal Science2016，25，3： | 2 |
| 8 | Effects of taurocholic acid on immunoregulation in mice显示文摘 | Caiyun Wang Lei Li Hong Guan Saiyinna Tong Mingqiang Liu Chang Liu Ziying Zhang Chenguang Du Peifeng Li | 2012 | International Immunopharmacology2012，，： | 2 |
| 9 | Development and investigation of efficient artificial bee colony algorithm for numerical function optimization 显示文摘 | LI GUOQIANG NIU PEIFENG XIAO XINGJUN | 2012 | Applied Soft Computing2012，12，1： | 1 |
| 10 | Apoptosis Repressor With Caspase Recruitment Domain Is Required for Cardioprotection in Response to Biomechanical and Ischemic Stress显示文摘 | Stefan Donath Peifeng Li Christian Willenbockel | 2006 | Circulation2006，113，： | 1 |
| 11 | Development and investigation of efficient artificial bee colony algorithm for numerical function optimization显示文摘 | Guoqiang Li Peifeng Niu Xingjun Xiao | 2011 | Applied Soft Computing Journal2011，，1： | 1 |
| 12 | Kinetic Monte Carlo simulation of film morphologies at the initial stages显示文摘The morphologies at the initial stages of thin film growth were studied by using Kinetic Monte Carlo techniques.A more efficient model was used to calculate the activity energy.The model involves incident atom attachment,diffusion,detachment from the surface,detached atom returning,and dimer diffusion.We edited a set of software of the model and simulated the surface morphologies by the principle of computer graphics.It is shown that the nucleuses formed at the initial stages and the surface morphologies at high temperatures are very different from those at low temperatures.The later surface growth depends on the nucleuses at the initial stages.The mechanism results from the atom thermal movement,the temperature determines the diffusion ability,and the deposition rate determines the diffusion time. | ZHENG XiaoPing ZHANG PeiFeng HE DeYan LI Lian | 2008 | Science China(Physics,Mechanics & Astronomy)2008，51，1： | 1 |
| 13 | The combustion behavior of large scale lithium titanate battery显示文摘 | HUANG Peifeng WANG Qingsong LI Ke | 2015 | Scientific Reports2015，5，： | 1 |
| 14 | Giant complete automaton for uncertain multiple string matching and its high speed construction algorithm显示文摘Multiple string matching is often completed under the presence of U- or V-uncertain-strings,or combinations thereof.Recognizing large numbers of strings with U-, V-,and U-V-uncertain-strings,including the interleaving of two or more uncertain strings,is important to thoroughly gathering useful information and detecting harmful information.This paper proposes a complete automaton and its high-speed construction algorithm for large-scale U-, V-,and U-V-uncertain multiple strings,including two or more uncertain strings interlaced with one another.The maximum number of parallel complete automation of the V-uncertain string is also given.This paper reveals that there are two kinds of pretermissions,i.e.,similarly-connected and interlaced-string pretermissions,and that mistake may appear in the matching of the regular expressions,or states in the automaton may increase in number,if the intersection of the U-uncertain strings sets and the homologous subsequent special point in the U-uncertain strings sets are not eliminated from the whole system. | HU Yue GAO QingShi GUO Li WANG PeiFeng | 2011 | Science China(Information Sciences)2011，54，8： | 1 |
| 15 | DESIGN AND FABRICATION OF Si/SiGe PMOSFETs显示文摘Based on theoretical analysis and computer-aided simulation, optimized design principles for Si/SiGe PMOSFET are given in this paper, which include choice of gate materials,determination of germanium percentage and profile in SiGe channel, optimization of thickness of dioxide and silicon cap layer, and adjustment of threshold voltage. In the light of these principles,a SiGe PMOSFET is designed and fabricated successfully. Measurement indicates that the SiGe PMOSFET's (L=2μm) transconductance is 45 mS/mm (300K) and 92mS/mm (77K), while that is 33 mS/mm (300K) and 39mS/mm (77K) in Si PMOSFET with the same structure. | Yang Peifeng Li Jingchun Yu Qi Wang Xiangzhan Yang Mohua (Dept. of Microelectronic Science and Eng., UEST of China, Chengdu 610054)He Lin Li Kaicheng Tan KaizhouLiu Daoguang Zhang Jing Yi Qiang Fan Zerui(National Key Laboratory of Analog IC’s, Chongqing 400060) | 2002 | Journal of Electronics(China)2002，19，1： | 1 |
| 16 | An Enhanced Extreme Learning Machine Based on Ridge Regression for Regression 显示文摘 | Li Guoqiang Niu Peifeng | 2013 | Neural Computing and Applications2013，22，34： | 1 |
| 17 | Differential effect of hydrogen peroxide and superoxide anion on apoptosis and proliferation of vascular smooth muscle cells显示文摘 | LI Peifeng Rainer Diet Z Kearney M | 1997 | Circulation1997，96，10： | 1 |
| 18 | Effects of temperature and salinity on oxygen consumption and ammonia excretion of juvenile miiuy croaker, Miichthys miiuy (Basilewsky)显示文摘 | Zhongming Zheng Chunhua Jin Mingyun Li Peifeng Bai Shuanglin Dong | 2008 | Aquaculture International2008，，6： | 1 |
| 19 | Enhanced endosomal escape of dendrigraft poly-L-lysine polymers for the efficient gene therapy of breast cancer显示文摘Dendrimer,such as dendrigraft poly-L-lysine(DGL)polymers,with high surface charge density,well-defined structure,and narrow poly-dispersity is often employed as a gene vector,but its transfection efficiency is still partially inhibited due to poor endosomal escape ability.Herein,we used a surface modification strategy to enhance the endosomal escape ability of DGL polymers,and thus improved its gene transfection efficiency.A library of phenylboronic acid(PBA)modified DGL polymers(PBA-DGLs)was designed to screen efficient small interfering RNA(siRNA)vectors.The lead candidate screened from the library shown a capability of inducing nearly 90% gene silencing in MDA-MB-231 cells.The study of the transfection mechanism revealed that PBA modification not only improves siRNA cellular uptake,but,more importantly,endows DGL polymers the ability of endosomal escape.One of the top candidates from polyplexes was further shielded with hyaluronic acid to construct targeted nanoparticles,and the yielding nanoparticles significantly suppressed the tumor growth in a breast cancer model by effective siRNA delivery.This research provides a general and effective strategy to enhance the endosomal escape and transfection efficiency of dendrimer. | Li Ye Hongmei Liu Xin Fei Ding Ma Xiaozhen He Qianyun Tang Xue Zhao Hanbing Zou Xiaojing Chen Xianming Kong Peifeng Liu | 2022 | Nano Research2022，15，2： | 1 |
| 20 | Electronic nose with a new feature reduction method and a multi-linear classifier for Chinese liquor classification显示文摘 | Yaqi Jing Qinghao Meng Peifeng Qi Ming Zeng Wei Li and Shugen Ma | 2014 | Review Of Scientific Instruments2014，，： | 1 |
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