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Search Results: 1 - 10 of 5540 matches for " Zhenhua Liao "
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The Method Exploration for Measuring the Strain of the Intervertebral Disc  [PDF]
Qinghua Xue, Weiqiang Liu, Zhenhua Liao
Modern Instrumentation (MI) , 2013, DOI: 10.4236/mi.2013.22004
Abstract:

Many researches point out that intervertebral pressure and transformation are key parameters for evaluating intervertebral disc degeneration. Aiming at avoiding the damage caused by direct and indirect measuring methods, this research proposes a cylindroid hypothesis and measuring method, which can monitor the strain condition of the intervertebral disc in vivo and real-time without being damaged.

Recent Advances in Finite Element Applications in Artificial Lumbar Disc Replacement  [PDF]
Zhenjun Zhang, Yitao Sun, Xuejun Sun, Yang Li, Zhenhua Liao, Weiqiang Liu
Journal of Biomedical Science and Engineering (JBiSE) , 2016, DOI: 10.4236/jbise.2016.910B001
Abstract:
As a new choice for the treatment of degenerative lumbar disease, artificial lumbar disc replacement has been widely used in clinical surgery. The finite element is a very effective method to predict and simulate the surgery effect. The purpose of this paper is to review the applications of finite element in artificial lumbar disc replacement, such as design of artificial lumbar disc prosthesis, risk and effect evaluation of artificial lumbar disc replacement, and assessment of operation methods. Lastly, we discuss the future development of finite element method applied in this field, including personalized design of the prosthesis, postoperative behavior guide, and artificial lumbar disc replacement combined with fusion surgery. In conclusion, as an invaluable complement to biomechanical experiments and clinical studies, the finite element method makes important contributions to our understanding of biomechanics of intervertebral disc, and plays an important role in the field of artificial lumbar disc replacement.
Research on the Impact of Entity’s “Non-Professional Business” on Audit Quality  [PDF]
Zhenhua Cui
American Journal of Industrial and Business Management (AJIBM) , 2018, DOI: 10.4236/ajibm.2018.84057
Abstract: Driven by the excess return rate, the entity financial trends are becoming more and more intense, which the entity enterprise carrying out financial and real estate business are often advertised as work outside. In order to explore whether entitys Non-professional Business can influence the audit quality or not, this paper takes A shares in the two stock markets of Shanghai and Shenzhen between 2007 and 2016 as a sample to find out their relationship. Entitys Non-professional Business can be divided into direct and indirect entry way. Direct entry way means the entity carries out related financial and real estate businesses independently, while indirect entry means the entity buys existing financial assets through the secondary market and other channels. The results show that the direct entry of enterprises into the financial and real estate business will reduce the audit quality. And enterprises in the way of indirect entry into the financial and real estate business will improve the quality of the audit.
A Guess Model of Black Holes and the Evolution of Universe  [PDF]
Zhenhua Mei, Shuyu Mei
Journal of Modern Physics (JMP) , 2012, DOI: 10.4236/jmp.2012.329154
Abstract: Based on the gravitational theory, fundamental data, and comprehensible suppositions, an evolution model of the universe was proposed. The universe exists in explosion and constringency mobile equilibrium state. The critical sizes of celestial bodies were calculated in their evolution process.
Mass the Confined Movement of Energy  [PDF]
Zhenhua Mei, Shuyu Mei
Journal of Modern Physics (JMP) , 2017, DOI: 10.4236/jmp.2017.86058
Abstract: According to Einstein’s mass-energy relation (E=mc2), and the discovery of neutrino oscillation fact, a new view of mass nature is proposed: The rest mass of a particle is not else something but just the confined movement of energy.
Polymerase I and Transcript Release Factor Acts As an Essential Modulator of Glioblastoma Chemoresistance
Xin Wang, Tianzhu Liu, Yifeng Bai, Hongzhan Liao, Shengcong Qiu, Zhenhua Chang, Yanting Liu, Xiaohui Yan, Hongbo Guo
PLOS ONE , 2014, DOI: 10.1371/journal.pone.0093439
Abstract: Objectives This study is to investigate if polymerase I and transcript release factor (PTRF) acts as a modulator in glioblastoma (GBM) chemoresistance. Methods Multidrug resistant (MDR) GBM cell line U251AR was established by exposing the U251 cell line to imatinib. The 2D-DIGE and MALDI-TOF/TOF-MS were performed on U251 and U251AR cell lines to screen MDR-related proteins. The expression of PTRF was determined by Western blot and quantitative RT-PCR analyses. Results When compared with the parental U251 cells, expression of 21 proteins was significantly altered in U251AR cells. Among the 21 differentially expressed proteins, the expression of PTRF was up-regulated by 2.14 folds in U251AR cells when compared with that in the parental U251 cells. Knockdown of PTRF in GBM cell lines significantly increased chemosensitivity of cells to various chemical drugs and decreased the expression levels of caveolin1, a major structural component of caveolae. Expression levels of PTRF and caveolin1 were significantly up-regulated in the relapsed GBM patients. The mRNA level of PTRF and caveolin1 showed a positive correlation in the same GBM specimens. Conclusions Our results indicate that PTRF acts as a modulator in GBM chemoresistance.
On Fixed Point Theorems in Intuitionistic Fuzzy Metric Spaces
Zhenhua Jiao
Journal of Applied Mathematics , 2012, DOI: 10.1155/2012/474983
Abstract: The author extends two fixed point theorems (due to Gregori, Sapena, and ?iki?, resp.) in fuzzy metric spaces to intuitionistic fuzzy metric spaces.
Superlarge ore deposits and development of China’s mineral resources
Zhenhua Zhao
Chinese Science Bulletin , 1999, DOI: 10.1007/BF02886000
Abstract: The ever increasing demand of mineral resources in China was assessed and it is suggested that the development of superlarge ore deposits was the best way to meet such demand. Research and exploitation of superlarge ore deposits can bring great economic and social benefits to the society. It is also the best way to a better integration of resource industry development and environmental protection and therefore provides a basis of sustainable development of China. China has made important advancements in the research of superlarge ore deposits and especially in classification, selectivity and confinement of deposit types and temporal and spatial distributions. It is suggested that the metallodynamics and the interaction between the crust and the mantle and the core should be studied. At the same time, a new concept of resources should be established in order to build a new integrated system for research, and resource development and environmental protection.
Electronic fibre in graphene
Zhenhua Wu
Physics , 2010, DOI: 10.1063/1.3557500
Abstract: We investigate theoretically the transmission properties through a p-n-p junction on graphene. Here we show that the electronic transport property presents deep analogies with light propagation. It originates from the similarity between the linear spectrum of the Dirac fermions and photons that obey the Maxwell's equations. We demonstrate the p-n-p channel acts as a electronic fiber in which electrons propagate along the channel without dissipation.
Short-range correlations in dilute atomic Fermi gases with spin-orbit coupling
Zhenhua Yu
Physics , 2012, DOI: 10.1103/PhysRevA.85.042711
Abstract: We study the short-range correlation strength of three dimensional spin half dilute atomic Fermi gases with spin-orbit coupling. The interatomic interaction is modeled by the contact pseudopotential. In the high temperature limit, we derive the expression for the second order virial expansion of the thermodynamic potential via the ladder diagrams. We further evaluate the second order virial expansion in the limit that the spin-orbit coupling constants are small, and find that the correlation strength between the fermions increases as the forth power of the spin-orbit coupling constants. At zero temperature, we consider the cases in which there are symmetric spin-orbit couplings in two or three directions. In such cases, there is always a two-body bound state of zero net momentum. In the limit that the average interparticle distance is much larger than the dimension of the two-body bound state, the system primarily consists of condensed bosonic molecules that fermions pair to form; we find that the correlation strength also becomes bigger compared to that in the absence of spin-orbit coupling. Our results indicate that generic spin-orbit coupling enhances the short-range correlations of the Fermi gases. Measurement of such enhancement by photoassociation experiment is also discussed.
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