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简介：据报道，台湾交通大学生物科公立技学系教授林志生与学生团队研发“纳米金球生物检测平台”，只需一滴血与几分钟，就能检测肿瘤细胞转移的可能性，部分关键技术已申请专利。

简介：SkeletalformofKNbO3crystalsgrowinginLi2B4O7solventwasin-situobservedat900CanditwasfoundthatshallowdepressionstartedtodeveloponthesurfaceofKNbO3crystalswhenthecrystalsizeexceededseveralmicron,typically7micron.BasedonthequantitativecriterionderivedbyChernov,theestimatedcriticalsizeofKNbO3crystalswas1micron,whichwasconsistentwiththeexperimentalmeasurement.Thekineticcoefficients,kcerandkc,,inthecriterionwereexperimentallyobtainedinthediffusive-convectiveanddiffusive-advectiveflowstatesrespectively.

简介：参考测试方法平行地被执行，借助于化学分析，X光检查衍射，微分扫描calorimetry-thermogravimetry，扫描电子显微镜学和当面学习C4A3S的形成的极化的光显微镜和起核心作用的代理人的缺席。当tricalcium硅酸盐(C3S)显然支持C4A3S和增加desulfurization度的形成，结果与高钙和低热消费显示出那个起核心作用的代理人。在锻烧与C3S做的未加工的饭期间，没有C3S，C4A3S的谷物尺寸与那相比是更大的。并且在一样的锻烧水平，集体损失和热，消费属于CaCO3分解被减少。

简介：采用溶胶-凝胶工艺，以Ni（Ac）2、La（NO3）3为前驱原料，以乙醇和乙二醇甲醚为溶剂，以丙烯酸为稳定剂，乙酰丙酮（AcAc）为化学修饰剂制备了感光性LNO溶胶。通过其溶胶的紫外和红外吸收光谱研究了感光性LNO溶胶的紫外感光机理，并运用溶胶-凝胶直接感光法制备出LNO薄膜的微细图形。

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简介：Thebovinehydroxyapatite(BHA)wasappliedtopreparebiologicaltissueengineeringscaffoldsbythemethodofextrusionfreeforming.Toachievethisgoal,BHAwereaddedtosodiumalginate(SA)solutiontoformaslurrysysteminappropriateproportion.Theresultingmixtureswerefabricatedtobeakindofcontrollableandporousscaffoldsfollowedwithcross-linkingin5%calciumchloride(CaCl2)solutionfor24h.Afterthat,thescaffoldsweresinteredinairat1000,1100,1200and1300℃for5h.Scanningelectronmicroscopy(SEM)andX-raydiffraction(XRD)studieswereperformedonthescaffoldstoanalyzeitsmicrostructureandconstituent.Toexploretheeffectofsinteringtemperatureonscaffolds,thecompressivestrength,volumeshrinkageandwaterabsorptivityofBHA-SAcompositescaffoldsaftersinteringwereinvestigated.TheresearchtestsindicatedthefeasibilityofapplyingBHApowderto3Dprinting.Besides,thescaffoldssinteredinarespectivelylowertemperaturepossessmuchmoreporesandperformedhigherwaterabsorptivity,whichmeansbettercellularaffinity.Andscaffoldssinteredbetween1100and1200℃presentshighercompressivestrength.

简介：Amathematicalmodelforthethree-dimensionalsimulationoffreedendriticgrowthandmicrostructureevolutionwasdevelopedbasedonthegrowthmechanismofcrystalgrainsandbasictransferequationssuchasheat,massandmomentumtransferequations.Manyfactorsincludingconstitutionalundercooling,curvatureundercoolingandanisotropy,whichhadvitalinfluencesonthemicrostructureevolution,wereconsideredinthemodel.SimulatedresultsshowedthatfinalmicrostructuralpatternsandfreedendriticgrowthcouldbepredictedreasonablyandcalculatedresultswerecoincidentwithexperimentalThesimulatedresultsoffreedendriticgrowthindicatedthatthestrengthofanisotropyhassignificanteffectsonfreedendriticgrowth,dendriteprofile,microsoluteandtemperaturedistribution.Thedendriticgrainprofileswithfully-grownparallelsecondaryarmtendtobeformedattheintensiveanisotropy,whilenearoctahedralgrainprofileswithsmallprotuberancesofsurfaceatlowstrengthofanisotropy.Thesimulatedresultsoffreedendriticgrowthalsoindicatedthattherearesmallmoltenpoolsleftininterdendriticareas.Thisishelpfultounderstandthefundamentaloftheformationofmicrostructurerelateddefectssuchasmicrosegregationandmicroporosity.

简介：Thevolatilizationkineticsofantimonytrisulfideinsteamatmospherewasstudiedwiththermogravimetryattemperaturesfrom923to1123K.Atheoreticalmodelwasdevelopedtocalculatetheoverallrateconstantandthemasstransfercoefficientingasphases.Theexperimentalresultsshowthatthevolatilizationrateisenhancedwithincreasingtemperatureandsteamflowrate.Thevolatilizationrateismainlycontrolledbythemasstransportingasphases.Theapparentactivationenergyfortheprocessisfoundtobe59.93kJ/mol.ItisdemonstratedthatSb2S3isdominantlyoxidizedintoSb2O3andH2Sbywatervaporinthevolatilizationprocess.Someantimonymetalisformed.Thereactionmechanismisdiscussedinaccordancewithexperimentaldata.

简介：Throughmeasuringthecoefficientoflinearexpansion,thestructureandpropertiesoftheLi2O-Al2O3-SiO2lowexpansionglassceramicscontainingB2O3arestudiedbyJRandXRD.ItisshoutnthattheIRmethodisefficientinthestudyoftheglass-ceramicsstructure.Thereisa"Boronabnormality"inthesystemwhichhasanimportantinfluenceonthepropertiesoftheglass-ceramics.

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简介：结果证明Mg在空间在钢的张力的性质和坚硬上有更少的效果温度，而是Mg的正确数量改进影响和破裂坚韧并且减少破裂转变温度更加由于包括修正，象一样通过加强谷物边界并且修改边界碳化物戏剧性地延长槽口压力破裂生活。有一个最佳Mg内容，它在试验性的35CrNi3MoV钢是大约0.0030%。(编辑作者摘要)8个裁判员。

简介：简要介绍了WO3粉体在电致变色、气敏性、光催化、光致变色等方面所表现出来的优异性能及其应用，并综述了WO3粉体的主要制备方法，包括固相法、气液法和液相法，总结了目前WO3粉体制备方法的发展现状、特点及不足。同时，分析了掺杂对WO3粉体性能的影响，并展望了未来的研究方向。

简介：Howtocontrolmeltcompositionisthekeyforgettinghighqualityalloymelt.Thepapermadethefollowingefforts:(1)TheactivitycoefficientsinTi-15-3melthavebeencalculated.(2)Takingadvantageoftheactivitycoefficients,theevaporationlossesofcomponentsinTi-15-3meltduringISMprocesshavebeenstudied.Thecalculatedresultsshowthatthereisacriticalvacuumdegree(about1.33Pa)duringmeltingprocess.

简介：采用反应射频磁控溅射方法，在玻璃基底上成功制备出了氮化铜（Cu3N）薄膜，并研究了溅射参数对Cu3N薄膜的结构和性能的影响，结果显示，随着溅射功率和氮气分压的增加，氮化铜薄膜的择优取向由（111）方向向（100）方向改变。随着基底温度从70℃增加到200℃，薄膜从Cu3N相变为cu相。紫外可见光谱、四探针电阻仪等测试表明，当溅射功率从80W逐渐增加到120W时，薄膜的光学能隙从1．85eV减小到1．41eV，电阻率从1．45×10^2Ω·cm增加到2．99×10^3Ω·cm。

简介：Si3N4/TiCnanocompositeceramicshavebeenfabricatedbyhotpressingtechniquewithAl2O3andY2O3asadditives.TheresultsshowedthatwelldispersedcompositepowderwascarriedoutbyaddingdispersantandadjustingpHvaluesofsuspensions.RemarkableincreaseinflexuralstrengthatroomtemperatureswasobtainedbyaddingnanoparticlesinSi3N4matrixwith10%(wtpct)ofnano-Si3N4and15%ofnano-TiC.Theflexuralstrength,fracturetoughnessandhardnesswere1025MPa,7.5MPa·1/2and15.6GPa,respectively.Themicrostructuresofmaterialswereanalyzedbyscanningelectronmicroscopy(SEM)andtransmissionelectronmicroscopy(TEM),whichindicatedthatTiCnanoparticlesdistributeinthematrixandatthegrainboundaries.Accordingtothefractureform,lowcontentsofnanoparticlescouldrefinematrixgrainsandleadtothecrackdeflectionaswellascrackpinning.Themultiplexmicrostructurewasformedbymixingnano-Si3N4particles.Thecracktrajectoriesexhibitedcrackdeflection,rod-likegrainbridgingandpull-out.

简介：据报道，英国《自然》杂志发表的一项材料科学研究报告称，德国科学家使用标准3D打印技术，制造出了超复杂、高精细且高质量的玻璃形状，如微小的扭结状脆饼干或城堡。这意味着，现在利用3D打印技术已可以制作具有较高光学性能的结构，可大量适用于设计复杂的透镜和过滤器。