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| 1 | Liquid Crystal Motion Picture Projector显示文摘LiquidCrystalMotionPictureProjector①SHIYongji(LuoyangTechnologyColege,Luoyang471003,CHN)Abstract:Aliquidcrystalmovingpicturep... | SHI Yongji(Luoyang Technology College,Luoyang 471003,CHN)Abstract: A liquid crystal moving picture projector and method are described.Light incident on a liquid crystal display-type device is selectively scattered or transmitted by respective portions of liquid crystal display,and a projection mechanism projects an image formed by either such scattered light or such transmitted light.A liquid crystal moving picture projector includes a liquid crystal display for creating characteristics of an image,and projecttion optics for projecting images sequentially created by the display.The display includes a liquid crystal material capable of temporary storing information at respective areas.The temporary storage may be a function of charge storing directly on liquid crystal material.A method of projecting plural images in sequence includes:creating an image or characteristics of an image in a liquid crystal material,storing such image in such liquid crystal material,directing light at such liquid crystal material,projecting such image as a function of light transmitted through or scattered by such liquid crystal material,and creating a further image in such liquid crystal material for subsequent projection. | 1997 | Semiconductor Photonics and Technology1997，3，3： | 35 |
| 2 | Coupled modeling of tumour angiogenesis, tumour growth,and blood perfusion显示文摘This paper proposes a more realistic mathematical simulation method to investigate the dynamic process of tumour angio-genesis by fully coupling the vessel growth,tumour growth and associated blood perfusion.The tumour growth and angiogenesis are coupled by the chemical microenvironment and the cell-matrix interaction.The haemodynamic calculation is carried out on the new vasculature,and an estimation of vessel collapse is made according to the wall shear stress criterion.The results are consistent with physiological observations,and further confirm the application of the coupled model feedback mechanism.The model is available to examine the interactions between angiogenesis and tumour growth,to study the change in the dynamic process of chemical environment and the vessel remodeling. | Y.Cai,1,2 S.X.Xu,1,a) J.Wu,3 and Q.Long 2,b) 1) Department of Mechanics and Engineering Science,Fudan University,Shanghai 200433,China 2) Brunel Institute for Bioengineering,School of Engineering and Design,Brunel University,Uxbridge,Middlesex,UK 3) School of Naval Architecture,Ocean and Civil Engineering,Shanghai Jiaotong University,Shanghai 200240,China | 2011 | Theoretical & Applied Mechanics Letters2011，1，4： | 8 |
| 3 | A theoretical model of collision between soft-spheres with Hertz elastic loading and nonlinear plastic unloading显示文摘This paper presents a theoretical model on the normal(head-on) collision between soft-spheres on the basis of elastic loading of the Hertz contact for compression process and a nonlinear plastic unloading for restitution one,in which the parameters all are determined in terms of the material and geometric ones of the spheres,and the behaviors of perfect elastic,inelastic,and perfect plastic collisions appeared in the classical mechanics are fully described once a value of coefficient of restitution is specified in the region of 0 ≤ε≤ 1.After an empirical formula of the coefficient of restitution dependent on the impact velocity is suggested to fit the existing experimental measurements by means of the least square method,the predictions of the dependency and the collision duration are in well quantitative agreement with their experimental measurements.It is found that the measurable quantities are dependent on both the impact velocity and the parameters of spheres.Following this model,finally,an approach to determine the spring coefficient in the linear viscoelastic model of the collision is also displayed.These results obtained here will be significantly beneficial for the applications where a collision model is requested in the simulations of relevant grain flows and impact dynamics etc.. | Youhe Zhou 1,2,a) 1) Key Laboratory of Mechanics on Disaster and Environment in Western China,the Ministry of Education of China 2)Department of Mechanics and Engineering Science,College of Civil Engineering and Mechanics,Lanzhou University,Lanzhou 730000,China | 2011 | Theoretical & Applied Mechanics Letters2011，1，4： | 4 |
| 4 | Influence of precipitation on the Portevin-Le Chatelier effect in Al-Mg alloys显示文摘In the alloy with solute content higher than the limiting solubility,the solute atoms that have failed to dissolve will precipitate from the solid solution and form precipitations.In this study, the Portevin-Le Chatelier(PLC) effects in annealed 5456 and 5052 aluminum alloys with different precipitation contents have been investigated under different applied strain rates.The results suggest that precipitations have significant effect on the PLC effect and the more the precipitations are, the greater the ... | Qi Hu,~(a))Qingchuan Zhang,~(b)) Shihua Fu,Pengtao Cao,and Ming Gong CAS Key Laboratory of Mechanical Behavior and Design of Materials,University of Science and Technology of China,Hefei 230027,China | 2011 | Theoretical & Applied Mechanics Letters2011，1，1： | 3 |
| 5 | Dynamical mode decomposition of Gurney flap wake flow显示文摘The present work uses dynamic mode decomposition(DMD) to analyze wake flow of NACA0015 airfoil with Gurney flap.The physics of DMD is first introduced.Then the PIV-measured wake flow velocity field is decomposed into dynamical modes.The vortex shedding pattern behind the trailing edge and its high-order harmonics have been captured with abundant information such as frequency,wavelength and convection speed.It is observed that high-order dynamic modes convect faster than low-order modes;moreover the wavel... | Chong Pan,~(a)) Dongsheng Yu,and Jinjun Wang Key Laboratory of Fluid Mechanics of Ministry of Education,Beijing University of Aeronautics and Astronautics, Beijing 100191,China | 2011 | Theoretical & Applied Mechanics Letters2011，1，1： | 3 |
| 6 | Response characteristics of an ascending auditory neuron AN3 and its projections in the brain of the bushcricket Gampsocleis grationsa显示文摘The phonotaxis of bushcrickets demonstrates that they have goodcapability of recognizing conspecific songs and locating the sound source,which bases on complicated auditory mechanisms of the central nervoussystem(CNS).This article describes the response characteristics of AN3,an auditory ascending neuron in the prothoracic ganglion,and its projec-tions within the brain.The AN3,with a quasi-tonic discharge pattern,has high sensitivity,directionality and ability to encode sound intensity.Therefore,it plays an important role in auditory information processingof CNS.Its projections in the brain are mainly concentrated in the lateralzone of the deutencephalon,where synaptically connecting local auditoryinterneurons in the brain. | GAO Panpan and SHEN Jun -Xian(Institute of Biophysics, Academia Sinica, Beijing 100080)The phonotaxis of bushcrickets demonstrates that they have good capability of recognizing conspecific songs and locating the sound source, which bases on complicated auditory mechanisms of the central nervous system (CNS). This article describes the response characteristics of AN3, an auditory ascending neuron in the prothoracic ganglion, and its projections within the brain. The AN3 , with a quasi-tonic discharge pattern, has high sensitivity, directionality and ability to encode sound intensity. Therefore, it plays an important role in auditory information processing of CNS. Its projections in the brain are mainly concentrated in the lateral zone of the deutencephalon, where synaptically connecting local auditory interneurons in the brain. | 1992 | Chinese Journal of Acoustics1992，11，1： | 3 |
| 7 | Longitudinal waves in one dimensional non-uniform waveguides显示文摘Wave approach is used to analyze the longitudinal wave motion in one dimensional non-uniform waveguides.With assumptions of constant wave velocity and no wave conversion,there exist four types of non-uniform rods and corresponding traveling wave solutions are investigated.The obtained results indicate that the kinetic energy is preserved as a constant and the wave amplitude is inversely proportional to square root of the cross-sectional area of the rod.Under certain condition,there exists a cut-off frequ... | Shuqi Guo,~(1,a) Zhi Zhang,~2 and Shaopu Yang~3 1)Department of Mechanics,Shijiazhuang Tiedao University,Shijiazhuang 050043,China. 2)School of Civil Engineering,Shijiazhuang Tiedao University,Shijiazhuang 050043,China 3)School of Mechanical Engineering,Shijiazhuang Tiedao University,Shijiazhuang 050043,China | 2011 | Theoretical & Applied Mechanics Letters2011，1，2： | 3 |
| 8 | Discrete large eddy simulation显示文摘Despite the intense effort expended towards obtaining a model for describing the turbulent flows of fluid, there is no model at hand that can do an adequate job. This leads us to look for a non-traditional approach to turbulence modeling. In this work we conjoin the notion of large eddy simulation with those of fuzzy sets and neural networks to describe a class of turbulent flows. In previous works we had discussed several issues concerning large eddy simulation such as filtering and averaging. Here, we discuss the use of fuzzy sets to improve the filtering procedure. | L. TAO, K. R. RAJAGOPAL and G. Q. CHEN(Department of Mechanical Engineering, Texas A&M University, College Station, Texas 77843-3123,USACentre for Environmental Sciences, Peking University, Beijing 100871, China | 2001 | Communications in Nonlinear Science and Numerical Simulation2001，6，1： | 2 |
| 9 | Surface effect on Bleustein-Gulyaev wave in a piezoelectric half-space显示文摘Surface effect,which is attributed to the different environment surrounding the surface or near-surface atoms from that embracing the bulk atoms,may become significant when the surface-to-volume ratio of a body is large.This paper considers the effect of a plane boundary of a piezoelectric body modeled as a thin layer with specified material properties,for which a transfer relation between the state vectors at the top and bottom surfaces is derived based on the state-space formulations.The equations of surface piezoelectricity for different orders without any bias field are then presented by making use of the power series expression of the transfer matrix.The surface effect is demonstrated by considering the Bleustein-Gulyaev wave existing in a horizontally polarized piezoceramic half-space. | Weiqiu Chen a) Department of Engineering Mechanics,Zhejiang University,Yuquan Campus,Hangzhou 310027,China | 2011 | Theoretical & Applied Mechanics Letters2011，1，4： | 2 |
| 10 | An implicit relation between temperature and reaction rate in the SLFM显示文摘The Arrhenius law implies that reaction rate is a continuous function of temperature. However,the steady laminar flamelet model(SLFM) does not explicitly give this functional relationship. The present study addresses this relation in the SLFM.It is found that reaction rate is not continuous in the mixture-fraction space.As a result,the SLFM is unable to predict local extinction and reignition.Furthermore,we use the unstable branch of the'S-curve'to fill the gap between steady burning branch and extinctio... | Jian Zhang,~(a)) Guowei He,~(b)) and Guodong Jin LNM,Institute of Mechanics,Chinese Academy of Sciences,Beijing 100190,China | 2011 | Theoretical & Applied Mechanics Letters2011，1，1： | 2 |
| 11 | Effects of the jet-to-crossflow momentum ratio on a sonic jet into a supersonic crossflow显示文摘Numerical investigation of a transverse sonic jet injected into a supersonic crossflow was carried out using large-eddy simulation for a free-stream Mach number M = 1.6 and a Reynolds number Re = 1.38×10~5 based on the jet diameter.Effects of the jet-to-crossflow momentum ratio on various fundamental mechanisms dictating the intricate flow phenomena,including flow structures, turbulent characters and frequency behaviors,have been studied.The complex flow structures and the relevant flow features are disc... | Guo-Lei Wang~(a)) and Xi-Yun Lu~(b)) Department of Modern Mechanics,University of Science and Technology of China,Hefei,Anhui 230026,China | 2011 | Theoretical & Applied Mechanics Letters2011，1，1： | 2 |
| 12 | A study of the effect of a single neurotoxic dose of 3, 4-Methylenedloxymethamphetamine ( MDMA; 'Ecstasy') on the subsequent longterm behavior of rats in the plus maze and open field 显示文摘 | Mechan A Moran PI Elliott M | 2002 | Psychopharmacol2002，159，2： | 1 |
| 13 | placebo in patients with schizophrenia and schizoaffective disorder显示文摘 | Potkin SG Saha AR Kujawa MJ Aripiprazole an antipsychotic with a novel mechanism of action and risperidone vs | 2003 | Arch Gen Psychiatry2003，60，7： | 1 |
| 14 | 显示文摘 | Pavlostathis S G Gossett J M A preliminary conversion mechanisms in anaerobic digestion of biological sludges | 1986 | Journal of Environmental Engineering ASCE1986，，114： | 1 |
| 15 | Evolution of collaborations显示文摘 | Barabgtsi A L Jeong H N6da the social network of scientific ca A: Statistical Mechanics and 311(3):590-614 Z | 2002 | Physi- Its Applications2002，，： | 1 |
| 16 | A single intermediate is responsible for cyclization, hydrolysis, and baseexchange chemistries显示文摘 | Sauve A A Munshi C Lee H C et ah The reaction mechanism for CD38 | 1998 | Biochemistry1998，37，13： | 1 |
| 17 | The influence of the bchaviour of welded joints contai- ning cracks in the weld metal显示文摘 | Rodrigues D M Menczes L F HAZ softening on the mechanical Loureiro A | 2004 | Engineering Fracture Mechan- ics2004，71，1314： | 1 |
| 18 | Convergence at the cyclin E/p27(Kip1) regulatory checkpoint显示文摘 | Antonov AS Munn DH Kolodgie FD Aortic endo- thelial cells regulate proliferation of human monocytes in vitro via a mechanism synergistic with macrophage colo- ny-stimulating factor | 1997 | J Clin Invest1997，99，12： | 1 |
| 19 | polymorphisms in XPD and Tp53 and mutation in human lung显示文摘 | Mechanic L E Marrogi A J Welsh J A | 2005 | Carcinogenesis2005，26，3： | 1 |
| 20 | Study of the Contact Force in Free-form Surfaces Compliant EDM Polishing by Robot显示文摘With an elastic negative pole being driven by ultra so nic vibration and being moved along the surface of work-piece compliantly by ro bot, a new kind of effective EDM, the compliant EDM, cuts the electrically condu ctive materials away and polishes work-piece of free-form surface. The study o f the contact force between the end of polishing tool and the surface of work-p iece is the key for the compliant EDM to study its cutting mechanism and to make better use of it. This paper makes a model for the contact force and verifies i t by experiments and simulation based on the theory of elastic body kinetics and dynamic stress concentration. The research work shows that this contact force i s caused by both the electrical impulsion of EDM and the mechanical force of ult rasonic vibration, the discharge frequency of compliant EDM has a much more clos er connection with the vibration frequency of polishing tool rather than the fre quency of ultrasonic vibration. | ZHAN Jian-ming 1, ZHAO Ji 2, XU Shu-xin 1, ZHU Pei-xi ng 1 (1. College of Mechanical Science and Engineering, Jilin University, Changchun 130022, China 2. Office of Education Administration, Jilin University, Changchun 130012, Chin a) | 2002 | 厦门大学学报(自然科学版)2002，41，S1： | 1 |
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