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Search Results: 1 - 10 of 6637 matches for " Zhenlin Hou "
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Stage II/III Rectal Cancer Patients Benefit from Extremely Early Initiation of Postoperative Adjuvant Chemotherapy: A Retrospective Study  [PDF]
Liuniu Xiao, Li Zhu, Yingming Chen, Zhenlin Hou, Lingwei Jia, Junbo Hu, Yongdong Feng
Journal of Cancer Therapy (JCT) , 2019, DOI: 10.4236/jct.2019.101004
Abstract: Background: For Stage II/III rectal cancer patients, curative resection is the primary treatment, prescribing of postoperative adjuvant chemotherapy (PAC) is regarded as a standard therapy. The interval between surgery and the initiation of PAC is usually within 8 weeks. However, the optimal cut-off is still controversial. This study aimed to explore the impact of extremely early initiation of PAC for II/III rectal cancer. Methods: Patients with Stage II/III rectal cancer treated from January 2013 to December 2015 were retrospectively collected at the Department of Tongji Hospital. According to the starting point of PAC, patients were categorized into two groups: extremely early group (The interval of PAC ≤ 2 weeks) and normal group (The interval of PAC within 3 - 5 weeks). For the sake of evaluating the effectiveness of different intervals, Overall Survival rate (OS), Progress-Free Survival rate (PFS) and Recurrence or Metastasis Rate (RMR) were analyzed, as well as the Quality of Life Score. To estimate the safety of the extremely early PAC, we evaluated the first post chemotherapy adverse reactions and defecation ability, and analyzed the variance laboratory indexes around the first postoperative adjuvant chemotherapy. Results: A total of 267 patients were included in this study. Compared to normal group (192 cases), extremely early group (75 cases) of patients attained a better tendency of OS and PFS, although there were no significant statistical differences (OS: P = 0.0930; PFS: P = 0.1058). However, the RMR was significant lower (P = 0.0452) and the Quality of Life Score was significantly higher (P = 0.0090) in extremely early group. Multivariate analysis also showed that extremely early group had better defecation ability (P = 0.0149) and less side reactions of post
A thermodynamically consistent phase-field model for two-phase flows with thermocapillary effects
Zhenlin Guo,Ping Lin
Physics , 2014, DOI: 10.1017/jfm.2014.696
Abstract: In this paper, we develop a phase-field model for binary incompressible (quasi-incompressible) fluid with thermocapillary effects, which allows for the different properties (densities, viscosities and heat conductivities) of each component while maintaining thermodynamic consistency. The governing equations of the model including the Navier-Stokes equations with additional stress term, Cahn-Hilliard equations and energy balance equation are derived within a thermodynamic framework based on entropy generation, which guarantees thermodynamic consistency. A sharp-interface limit analysis is carried out to show that the interfacial conditions of the classical sharp-interface models can be recovered from our phase-field model. Moreover, some numerical examples including thermocapillary convections in a two-layer fluid system and thermocapillary migration of a drop are computed using a continuous finite element method. The results are compared to the corresponding analytical solutions and the existing numerical results as validations for our model.
Analysis on Mistakes which Occur Often in Writing English Notes of Figures and Tables

ZHANG ZhenLin,

中国科技期刊研究 , 2007,
Abstract: 分析了科技期刊图表英文注释中的常见差错,认为这些差错的主要表现有省略错误、动词词义和语法功能误用、主谓语搭配不当、标点符号使用混乱等。同时,探讨了图表英文注释差错处理办法。

WANG Zhenlin,

心理学报 , 2000,
Abstract: One of the most prominent characteristics of children's human figure drawing is disproportion. Over 300 children aged from 4.5 to 6.5 panicipated in this research. The results showed that the trunk/head ratios of all participants, averaged 1.3, increased from 4.5 to 5.5, then decreased until 6 and increased again on free drawing condition. Due to the relatively stable size of the head, the variation of the ratio was mostly caused by the variation of the size of the trunk, which is deemed pertinent to the cognitive development of body structure. On model drawing condition, the trunk/head ratio was significantly greater than that of free drawing, although the direction of variation was the same except ages of 4.5 to 5. Changing the order of drawing and exaggerating the function of body parts can also affect the ratio.
A numerical method for the quasi-incompressible Cahn-Hilliard-Navier-Stokes equations for variable density flows with a discrete energy law
Zhenlin Guo,Ping Lin,John S. Lowengrub
Physics , 2014, DOI: 10.1016/j.jcp.2014.07.038
Abstract: In this paper, we investigate numerically a diffuse interface model for the Navier-Stokes equation with fluid-fluid interface when the fluids have different densities \cite{Lowengrub1998}. Under minor reformulation of the system, we show that there is a continuous energy law underlying the system, assuming that all variables have reasonable regularities. It is shown in the literature that an energy law preserving method will perform better for multiphase problems. Thus for the reformulated system, we design a $C^0$ finite element method and a special temporal scheme where the energy law is preserved at the discrete level. Such a discrete energy law (almost the same as the continuous energy law) for this variable density two-phase flow model has never been established before with $C^0$ finite element. A Newton's method is introduced to linearise the highly non-linear system of our discretization scheme. Some numerical experiments are carried out using the adaptive mesh to investigate the scenario of coalescing and rising drops with differing density ratio. The snapshots for the evolution of the interface together with the adaptive mesh at different times are presented to show that the evolution, including the break-up/pinch-off of the drop, can be handled smoothly by our numerical scheme. The discrete energy functional for the system is examined to show that the energy law at the discrete level is preserved by our scheme.
A three dimensional field formulation, and isogeometric solutions to point and line defects using Toupin's theory of gradient elasticity at finite strains
Zhenlin Wang,Shiva Rudraraju,Krishna Garikipati
Physics , 2015,
Abstract: We present a field formulation for defects that draws from the classical representation of the cores as force dipoles. We write these dipoles as singular distributions. Exploiting the key insight that the variational setting is the only appropriate one for the theory of distributions, we arrive at universally applicable weak forms for defects in nonlinear elasticity. Remarkably, the standard, Galerkin finite element method yields numerical solutions for the elastic fields of defects, that when parameterized suitably, match very well with classical, linearized elasticity solutions. The true potential of our approach, however, lies in its easy extension to generate solutions to elastic fields of defects in the regime of nonlinear elasticity, and even more notably for Toupin's theory of gradient elasticity at finite strains (Arch. Rat. Mech. Anal., 11, 385, 1962). In computing these solutions we adopt recent numerical work on an isogeometric analytic framework that allowed the first three-dimensional solutions to general boundary value problems of Toupin's theory (Rudraraju et al. Comp. Meth. App. Mech. Engr., 278, 705, 2014). We present exhaustive solutions to point defects, edge and screw dislocations, as well as a study on the energetics of interacting dislocations.
Lossy-to-Lossless Compression of Hyperspectral Image Using the 3D Set Partitioned Embedded ZeroBlock Coding Algorithm  [PDF]
Ying Hou
Journal of Software Engineering and Applications (JSEA) , 2009, DOI: 10.4236/jsea.2009.22013
Abstract: In this paper, we propose a three-dimensional Set Partitioned Embedded ZeroBlock Coding (3D SPEZBC) lossy-to-lossless compression algorithm for hyperspectral image which is an improved three-dimensional Embedded ZeroBlock Coding (3D EZBC) algorithm. The algorithm adopts the 3D integer wavelet packet transform proposed by Xiong et al. to decorrelate, the set-based partitioning zeroblock coding to process bitplane coding and the con-text-based adaptive arithmetic coding for further entropy coding. The theoretical analysis and experimental results demonstrate that 3D SPEZBC not only provides the same excellent compression performances as 3D EZBC, but also reduces the memory requirement compared with 3D EZBC. For achieving good coding performance, the diverse wave-let filters and unitary scaling factors are compared and evaluated, and the best choices were given. In comparison with several state-of-the-art wavelet coding algorithms, the proposed algorithm provides better compression performance and unsupervised classification accuracy.
Spectral Analysis and Variable Structural Control of an Elastic Beam  [PDF]
Xuezhang Hou
Journal of Applied Mathematics and Physics (JAMP) , 2013, DOI: 10.4236/jamp.2013.15015

An elastic beam system formulated by partial differential equations with initial and boundary conditions is investigated in this paper. An evolution equation corresponding with the beam system is established in an appropriate Hilbert space. The spectral analysis and semigroup generation of the system operator of the beam system are discussed. Finally, a variable structural control is proposed and a significant result that the solution of the system is exponentially stable under a variable structural control with some appropriate conditions is obtained.

Does the Pay Gap in the Top Management Team Incent Enterprise Innovation?—Based on Property Rights and Financing Constraints  [PDF]
Jingru Hou
American Journal of Industrial and Business Management (AJIBM) , 2018, DOI: 10.4236/ajibm.2018.85088
Abstract: Using the patent applications data of listed firms in China from 2005 to 2014, this paper examines how the pay gap in the top management team influences enterprise innovation. The result shows that the number of patent applications especially the number of patents for invention increases significantly when the pay gap enlarges. It means the enlargement of the pay gap in the top management team could incent executives to make innovation decisions, to promote outputs of high-quality patents for invention. Finally the quality of enterprise innovation has been improved. Especially, the incentive effect of the pay gap in the top management team is more significant in private enterprises and enterprises with strong financing constraints. Therefore, enterprises in these two groups have better innovation behaviors.
Electrocatalytic dechlorination of 2,4,5-trichlorobiphenyl using an aligned carbon nanotubes electrode deposited with palladium nanoparticles
Shuo Chen,ZhenLin Qin,Xie Quan,YaoBin Zhang,HuiMin Zhao
Chinese Science Bulletin , 2010, DOI: 10.1007/s11434-010-0003-z
Abstract: Palladium loaded carbon nanotubes cathode with well-aligned nanotubes array was successfully fabricated on a titanium foil (Pd/CNTs/Ti) using a chemical vapor deposition technique and subsequent electrochemical deposition method. Pd particles were well dispersed on CNTs wall surfaces with average sizes no more than 20 nm, in most cases around 10 nm. Experiments for dechlorination of 2,4,5-trichlorobiphenyl (PCB 29) in methanol/water solution were carried out for the first time using Pd/CNTs/Ti cathode for investigation of its performance in electrocatalytic dechlorination of PCBs. Results show that Pd/CNTs/Ti presented better dechlorination efficiency (up to 90% in 6 h) than Pd/Ti and Pd/graphite cathodes owing to unique properties owned by CNTs, which benefited enhanced dechlorination of PCB 29. Complete dechlorination for PCB 29 was observed and biphenyl was identified to be final dechlorination product. The amount of Pd loading, cathode potential, and electrolytes were found to be key factors influencing dechlorination performance.
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