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Experimental Study of Sterilizing Molds by Ultrasound

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Chinese Physics Letters 1998年第2期15卷 115-116页

作者： REN jin-lian NIU Yong Applied Acoustics Institute Shaanxi Teachers UniversityXi’an 710062

An ultrasound method of sterilizing aspergillus flavus and fusarium is proposed and *** dependence of sterilizing effect on ultrasonic intensity,frequency,and treatment time is experimentally *** density of surviving spores decreases first with increasing ultrasonic frequency and then increases with the further increase of the frequency,that is to say,there exists the optimum frequency 26 kHz at which the killing rate is near 100%.The killing rate seems proportional to the intensity and the time.

关键词： optimum intensity proportional

Lower bounds of the topological entropy for nonautonomous dynamical systems

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Applied Mathematics(A Journal of Chinese Universities) 2009年第1期24卷 76-82页

作者： ZHANG jin-lian CHEN Lan-xin College of Math. and Inform. Sci. Hebei Normal Univ. Shijiazhuang 050016 China Dept. of Math. Shijiazhuang Univ. Shijiazhuang 050035 China

In this paper, lower bounds of the topological entropy for nonautonomous dynamical systems are given via the growths of topological complexity in fundamental group and in degree.

关键词： nonautonomous dynamical system topological entropy fundamental group degree

The SPH approach to the process of container filling based on non-linear constitutive models

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Acta Mechanica Sinica 2012年第2期28卷 407-418页

作者： Tao Jiang Jie Ouyang Lin Zhang jin-lian Ren Department of Applied Mathematics Northwestem Polytechnical University710129 Xi'anChina

In this work, the transient free surface of con- tainer filling with non-linear constitutive equation＇s fluids is numerically investigated by the smoothed particle hydrody- namics （SPH） method. Specifically, the filling process of a square container is considered for non-linear polymer fluids based on the Cross model. The validity of the presented SPH is first verified by solving the Newtonian fluid and Oldroyd- B fluid jet. Various phenomena in the filling process are shown, including the jet buckling, jet thinning, splashing or spluttering, steady filling. Moreover, a new phenomenon of vortex whirling is more evidently observed for the Cross model fluid compared with the Newtonian fluid case.

关键词： Non-linear. SPH Free surface Navier-Sto- kes Filling

ALK Family Inhibitor A83-01 Promotes the Proliferation of Mouse Male Germline Stem Cells (mGSCs) Under Serum- and Feeder-Free Conditions

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Journal of Integrative Agriculture 2013年第10期12卷 1839-1846页

作者： YU Meng WANG Long HU Yue lian Zhi-min HUA jin-lian College of Veterinary Medicine Shaanxi Centre of Stem Cells Engineering & Technology/Key Lab for Animal BiotechnologyAgriculture Ministry of China/Northwest A&F University

A83-01 is a selective inhibitor of the TGF-β type I receptor ALK,which inhibits the TGF-β-induced epithelial-to-mesenchymal transition（EMT） via the inhibition of Smad2 *** studies have showed that A83-01 promoted somatic cellular reprogramming *** germline stem cells（mGSCs）,as an alternative resource of pluripotent stem cells derived adult testis,have promising valuable in clinic medicine and regeneration,however,the derivation of mGSCs was complex and *** the role A83-01 plays in promoting the proliferation of mGSCs is still *** this study,combined with A83-01 and knockout serum replacement（KSR） medium,we obtained a relatively feeder-and serum-free system for mGSCs culturing in vitro and the optimal concentration of A83-01 was 0.25 μmol *** continuous culturing,the proliferation efficiency of undifferentiated mGSCs and differentiation capacity of mGSC were examined as *** showed that,A83-01 dramatically increased the number of mGSCs and AP positive colonies,and the mitosis index according to the BrdU assay.A83-01 could also increase the expression of pluripotent markers including Oct4,Klf4,Nanog and c-Myc,analyzed byreal-time quantative *** cultured in the optimal feeder-and serum-free system combined with A83-01 could form embryoid bodies（EBs）,which consisted of three embryonic layers detected by immunofluorescence and ***,the results demonstrated 0.25 μmol L-1A83-01 could promote the proliferation of mouse mGSC colonies and maintain their undifferentiated status under feeder-and serum-free systems.

关键词： male germline stem cells(mGSCs) A83-01 feeder-and serum-free mouse

Path loss model based on cluster at 28 GHz in the indoor and outdoor environments

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Science China(Information Sciences) 2017年第8期60卷 25-35页

作者： Lai ZHOU Limin XIAO Zhi YANG Jiahui LI jin lian Shidong ZHOU State Key Laboratory on Microwave and Digital Communications Tsinghua University Tsinghua National Laboratory for Information Science and Technology Tsinghua University Department of Engineering Physics Tsinghua University Department of Electronic Engineering Tsinghua University

This paper presents 28 GHz path loss model based on cluster obtained from channel measurement campaigns with rotating platforms and directional antennas in the indoor and outdoor environments. The transmitter(TX) and receiver(RX) both sweep a large range of angles in the azimuth and elevation plane on account of covering main propagation paths and measuring burden. As the sequence number of cluster increases, the path loss exponents(PLEs) increase while shadow factors also have a growing tendency. The PLE of all-clusters is the least because of multi propagation paths, and the LOS PLEs of corridor scenario are less compared with that of office scenario because of corridor’s long and narrow structure. This improved model not only considers cluster characteristics, but also unites directional and omnidirectional models into the same framework, which to some extent improves the 5G mm Wave channel model.

关键词： mm Wave channel measurement office and corridor rotating platform multipath components path loss model based on cluster

Discussion of the protein characterization techniques used in the identification of membrane protein targets corresponding to tumor cell aptamers

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Chinese Chemical Letters 2021年第1期32卷 40-47页

作者： Zhukang Guo Yuan Liu Nongyue He Yan Deng lian jin State Key Laboratory of Bioelectronics School of Biological Science and Medical EngineeringSoutheast UniversityNanjing 210096China Hunan Key Laboratory of Biomedical Nanomaterials and Devices Hunan University of TechnologyZhuzhou 412007China

Aptamer is an oligonucleotide chain with specific binding ability to protein and other targets,which is widely used in ma ny *** of its ability to screen the premise of unknown targets,it can be used to discover some novel tumor markers,i.e.,membrane proteins that are specifically highly expressed on the surface of tumor *** markers can be used in many fields such as early diagnosis and treatment,and a new type of tumor marker proved to be effective can significantly improve the therapeutic effect of such ***,further characterization of newly acquired membrane proteins is essential for their clinical use as tumor *** review first briefly introduced the process of obtaining novel tumor markers from nucleic acid ***,the commonly used protein characterization methods could be used as a technical means to identify membrane protein targets corresponding to tumor cell aptamers,to clarify the principles,advantages and disadvantages of various means,and to analyze the most suitable situations for various experimental ***,the outlook was made and the characterization methods that should be used in such experiments were summarized.

关键词： Aptamer Cell-SELEX Tumor Membrane protein Tumor marker

Experimental Realization of a Magnetically Tunable Cavity in a Gyromagnetic Photonic Crystal

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Chinese Physics Letters 2012年第7期29卷 122-125页

作者： lian jin FU jin-Xin GAN Lin LI Zhi-Yuan Laboratory of Optical Physics National Laboratory for Condensed Matter PhysicsInstitute of PhysicsChinese Academy of SciencesP.O.Box 603Beijing 100190

We theoretically and experimentally study the cavity modes in a gyromagnetic photonic crystal (GPC).Because the permeability of gyromagnetic material relies on the dc magnetic field exerted upon it,the band gap of the GPC is supposed to be *** on this,it is expected that the cavity mode in the GPC is also tunable under the variation of dc magnetic *** relation between the frequency of the cavity mode and exerted dc magnetic field is theoretically ***,we measure the frequency variation of the cavity mode in the GPC and demonstrate the tunable property of GPC cavity.

关键词： Crystal cavity mode

Thermoelectric properties of Al substituted misfit cobaltite Ca_3(Co_(1-x)Al_x)_4O_9 at low temperature

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International Journal of Minerals,Metallurgy and Materials 2014年第7期21卷 720-725页

作者： Yi Liu Hong-mei Chen jin-lian Hu Xu-bing Tang Hai-jin Li Wei Wang School of Mathematics and Physics Anhui University of Technology Institute of Optoelectronic Information Materials and Technologies Anhui University of Technology School of Materials Science & Engineering Anhui University of Technology

Thermoelectric properties of Al substituted compounds Ca3（Co1-xAlx）4O9 （x=0, 0.03, 0.05）, prepared by a sol-gel process, have been investigated in the temperature range 305-20 K. The results indicate that after Al substitution for Co in Ca3（Co1-xAlx）4O9, the direct current electrical resistivity and thermopower increase due to the reduction of carrier concentration. Experiments show that Al substitution results in decreased lattice thermal conductivity. The figure of merit of temperature behavior suggests that Ca3（Co0.97Al0.03）4O9 would be a promising candidate thermoelectric material for high-temperature thermoelectric application.

关键词： transition metal oxides sol-gel process thermoelectricity electrical properties substitution

Modeling of Pneumatic Muscle with Shape Memory Alloy and Braided Sleeve

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International Journal of Automation and computing 2010年第3期7卷 283-288页

作者： Bin-Rui Wang Ying-lian jin Dong Wei School of Mechanical and Electrical Engineering China Jiliang University Hangzhou 310018 PRC State Key Laboratory of Robotics Shenyang 110016 PRC

Pneumatic muscle （PM） of flexible actuators used in bionic robot is an active area of recent research. A novel PM with shape memory alloy （SMA） braided sleeve is proposed in this paper, and SMA is used to improve PM working characteristics. Based on the principle of virtual work, output force model of PM and relationship with braided wire inner-stress are established, and analysis of PM deformation has shown that braided wire length is the key factor of output force characteristic. Based on the crystal structure transitions, the relationship of temperature with wire shrinkage is derived. Then, the synthetic dynamics of novel PM is established. A physical prototype of PM with SMA braided sleeve is developed, and test platform that is built for the experiment. Experiment and simulation test of static isometric-length, static isobaric-pressure, and dynamic characteristics are done. The experimental results are compared with the simulation of theoretical model. Moreover, based on experiment, model of output force was improved by adding a correction factor to deal with the elastic force of rubber tube. The results analysis demonstrates that the established models are correct, and SMA wires can reinforce PM and make PM working characteristics adjustable. PM proposed in this paper has greater output force and is beneficial to achieve more accurate control that is useful for manipulating fragile things.

关键词： Pneumatic muscle (PM) shape memory alloy (SMA) modeling simulation testing robot.