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136篇 您的检索式:作者名="Lim C."
    题名 作者 年代 出处 被引量
1Dynamic behaviour of axially moving nanobeams based on nonlocal elasticity approach显示文摘In this article,transverse free vibrations of axially moving nanobeams subjected to axial tension are studied based on nonlocal stress elasticity theory.A new higher-order differential equation of motion is derived from the variational principle with corresponding higher-order,non-classical boundary conditions.Two supporting conditions are investigated,i.e.simple supports and clamped supports.Effects of nonlocal nanoscale,dimensionless axial velocity,density and axial tension on natural frequencies are presented and discussed through numerical examples.It is found that these factors have great influence on the dynamic behaviour of an axially moving nanobeam.In particular,the nonlocal effect tends to induce higher vibration frequencies as compared to the results obtained from classical vibration theory.Analytical solutions for critical velocity of these nanobeams when the frequency vanishes are also derived and the influences of nonlocal nanoscale and axial tension on the critical velocity are discussed.C. W. Lim C. Li Ji-Lin Yu 2010Acta Mechanica Sinica2010,26,5:7
2Is a nanorod (or nanotube) with a lower Young’s modulus stiffer? Is not Young’s modulus a stiffness indicator?显示文摘It has been a known fact in classical mechanics of materials that Young’s modulus is an indicator of material stiffness and materials with a higher Young’s modulus are stiffer. At the nanoscale, within the scope and under specific circumstances described in this paper, however, a nanorod (or a nanotube) with a smaller Young’s modulus (smaller stress-strain rate) is stiffer. In such a scenario, Young’s modulus is not a stiffness indicator for nanostructures. Furthermore, the nonlocal stress-strain rate is dependent on types of load, boundary conditions and location. This is likely to be one of the many possible reasons why numerous experiments in the past obtained significantly varying values of Young’s modulus for a seemingly identical nanotube, i.e. because the types of loading and/or boundary conditions in the experiments were different, as well as at which point the property was measured. Based on the nonlocal elasticity theory and within the scope of material and geometric linearity, this paper reports the strange and hitherto unrealized effect that a nanorod (or a nanotube) with a lower Young’s modulus (smaller stress-strain rate) indicates smaller extension in tensile analysis. Similarly, it is also predicted that a nanorod (or a nanotube) with a lower Young’s modulus results in smaller bending deflection, higher critical buckling load, higher free vibration frequency and higher wave propagation velocity, which are at all consequences of a stiffer nanostructure.Lim C. W. 2010Science China(Physics,Mechanics & Astronomy)2010,53,4:5
3Asymptotic analysis of a vibrating cantilever with a nonlinear boundary显示文摘Nonlinear vibration of a cantilever in a contact atomic force microscope is analyzed via an asymptotic approach. The asymptotic solution is sought for a beam equation with a nonlinear boundary condition. The steady-state responses are determined in primary resonance and subharmonic resonance. The relations between the response amplitudes and the excitation frequencies and amplitudes are derived from the solvability condition. Multivaluedness occurs in the relations as a consequence of the nonlinearity. The stability of steady-state responses is analyzed by use of the Lyapunov linearized stability theory. The stability analysis predicts the jumping phenomenon for certain parameters. The curves of the response amplitudes changing with the excitation frequencies are numerically compared with those obtained via the method of multiple scales. The calculation results demonstrate that the two methods predict the same varying tendencies while there are small quantitative differences.C. W. LIM 2009Science China(Physics,Mechanics & Astronomy)2009,52,9:5
4Long-term Therapy With Adefovir Dipivoxil for HBeAg-Negative Chronic Hepatitis B for up to 5 Years显示文摘Stephanos J. Hadziyannis Nicolaos C. Tassopoulos E. Jenny Heathcote Ting–Tsung Chang George Kitis Mario Rizzetto Patrick Marcellin Seng Gee Lim Zachary Goodman Jia Ma Carol L. Brosgart Katyna Borroto–Esoda Sarah Arterburn Steven L. Chuck 2006Gastroenterology2006,,6:3
5Energetics and conserved quantity of an axially moving string undergoing three-dimensional nonlinear vibration显示文摘移动绳的向轴的方向的非线性的三维的颤动在 energetics 的看法被调查。管理方程为加速绳的向轴的方向从连续统的运动的 Eulerian 方程被导出。与颤动联系的全部的机械精力的时间率为绳被计算,它的端搬到一个规定方法。为处于经常的轴的速度动人、到二固定的端抑制的绳,保存数量被证明在三维的颤动期间仍然保持未改变,当绳精力没被保存时。近似保存数量在直平衡配置的邻居从保存数量被导出。近似保存数量被使用验证直平衡配置的 Lyapunov 稳定性。数字模拟为橡胶绳和钢绳被执行。结果表明全部的机械精力和保存数量的不变性的变化。Liqun Chen C. W. Lim Hu Ding 2008Acta Mechanica Sinica2008,24,2:3
6Nonlinear vibrations of nano-beams accounting for nonlocal effect using a multiple scale method显示文摘The nonlinear free transverse vibrations of a nano-beam on simple supports are investigated based on nonlocal elasticity theory. The governing equation is proposed by considering geometric nonlinearity due to finite stretching of the beam. The method of multiple scales is applied to the governing equa- tion to evaluate the nonlinear natural frequencies. Numerical examples are presented to demonstrate the analytical results and highlight the contributions of the nonlinear term and nonlocal effect.C. W. LIM 2009Science China(Technological Sciences)2009,52,3:3
7A Pattern-Based Method for the Identification of MicroRNA Binding Sites and Their Corresponding Heteroduplexes显示文摘Kevin C. Miranda Tien Huynh Yvonne Tay Yen-Sin Ang Wai-Leong Tam Andrew M. Thomson Bing Lim Isidore Rigoutsos 2006Cell2006,,6:3
8Long-term Therapy With Adefovir Dipivoxil for HBeAg-Negative Chronic Hepatitis B for up to 5 Years显示文摘Stephanos J. Hadziyannis Nicolaos C. Tassopoulos E. Jenny Heathcote Ting–Tsung Chang George Kitis Mario Rizzetto Patrick Marcellin Seng Gee Lim Zachary Goodman Jia Ma Carol L. Brosgart Katyna Borroto–Esoda Sarah Arterburn Steven L. Chuck 2006Gastroenterology2006,,6:2
9HIF-1 mediates adaptation to hypoxia by actively downregulating mitochondrial oxygen consumption显示文摘Ioanna Papandreou Rob A. Cairns Lucrezia Fontana Ai Lin Lim Nicholas C. Denko 2006Cell Metabolism2006,,3:2
10Randomized Controlled Trial of Danoprevir Plus Peginterferon Alfa-2a and Ribavirin in Treatment-Naive Patients with HCV Genotype 1 Infection显示文摘P. Marcellin C. Cooper L. Balart D. Larrey T. Box E. Yoshida E. Lawitz P. Buggisch P. Ferenci M. Weltman E. Labriola-Tompkins S. Le Pogam I. Nájera D. Thomas G. Hooper N.S. Shulman Y. Zhang M.T. Navarro C.Y. Lim M. Brunda N.A. Terrault E.S. Yetzer 2013Gastroenterology2013,,:2
11Genome‐wide association study identifies quantitative trait loci affecting hematological traits in an F <sub>2</sub> intercross between L andrace and K orean native pigs显示文摘E. J. Jung H. B. Park J. B. Lee C. K. Yoo B. M. Kim H. I. Kim I. C. Cho H. T. Lim 2014Anim Genet2014,,4:2
12A Simplified Tumor Regression Grade Correlates with Survival in Locally Advanced Rectal Carcinoma Treated with Neoadjuvant Chemoradiotherapy显示文摘D. Beddy J. M. P. Hyland D. C. Winter C. Lim A. White M. Moriarty J. Armstrong D. Fennelly D. Gibbons K. Sheahan 2008Annals of Surgical Oncology2008,,12:2
13Successful withdrawal of antiviral treatment in kidney transplant recipients with chronic hepatitis B viral infection显示文摘J.‐H. Cho J.‐H. Lim G.‐Y. Park J.‐S. Kim Y.‐J. Kang O. Kwon J.‐Y. Choi S.‐H. Park Y.‐L. Kim H.‐K. Kim S. Huh C.‐D. Kim 2014Transpl Infect Dis2014,,2:2
14NUMERICAL SIMULATIONS OF HYDRODYNAMIC BEHAVIORS IN CONICAL SPOUTED BEDS显示文摘The axial and radial distributions of static pressures and vertical particle velocities of conical spouted beds have been simulated and compared with experimental data. Simulation results show that, among all factors investigated, the Actual Pressure Gradient (the APG term) in conical spouted beds, introduced as the default gravity term plus an empirical axial solid phase source term, has the most significant influence on static pressure profiles, followed by the restitution coefficient and frictional viscosity, while other factors almost have no effect. Apart from the solid bulk viscosity, almost all other factors affect the radial distribution of the axial particle velocity, although the influence of the APG term is less significant. For complex systems such as conical spouted beds where a fluidized spout region and a defluidized annulus region co-exist, the new term introduced in this work can improve the CFD simulation. Furthermore, for other systems with the Actual Pressure Gradient different from either fluidized beds or packed beds, the new approach can also be applied.C. J. Lim 2006China Particuology2006,4,3:2
15Prognostic Factors Following Curative Resection for Pancreatic Adenocarcinoma: A Population-Based, Linked Database Analysis of 396 Patients显示文摘Jonathan E. Lim Michael W. Chien Craig C. Earle 2003Annals of Surgery2003,,1:2
16PTEN and phosphorylated AKT expression and prognosis in early- and late-stagenon-small cell lung cancer显示文摘W. Lim W. Zhang C. Miller J. Watters F. Gao A. Viswanathan R. Govindan H. McLeod 2007Oncology Reports2007,,4:1
17Genome‐wide association analysis identifies quantitative trait loci for growth in a L andrace purebred population显示文摘E. J. Jung H. B. Park J. B. Lee C. K. Yoo B. M. Kim H. I. Kim B. W. Kim H. T. Lim 2014Anim Genet2014,,3:1
18FRP-confined concrete in circular sections: Review and assessment of stress–strain models显示文摘Togay Ozbakkaloglu Jian C. Lim Thomas Vincent 2012Engineering Structures2012,,:1
19Extended lamivudine treatment in patients with chronic hepatitis B enhances hepatitis B e antigen seroconversion rates: Results after 3 years of therapy显示文摘Nancy W.Y. Leung Ching-Lung Lai Ting-Tsung Chang Richard Guan Chuan-Mo Lee Keng-Yeen Ng Seng-Gee Lim Pui-Chee Wu Julie C. Dent Sally Edmundson Lynn D. Condreay Rong-Nan Chien 2001Hepatology2001,,6:1
20Population-Based Genome-wide Association Studies Reveal Six Loci Influencing Plasma Levels of Liver Enzymes显示文摘Xin Yuan Dawn Waterworth John R.B. Perry Noha Lim Kijoung Song John C. Chambers Weihua Zhang Peter Vollenweider Heide Stirnadel Toby Johnson Sven Bergmann Noam D. Beckmann Yun Li Luigi Ferrucci David Melzer Dena Hernandez Andrew Singleton James Scott Paul 2008The American Journal of Human Genetics2008,,4:1
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