简介：QingshanbrandmilkpowderwithteaisproducedbytheInnerMongoliaQingshanMilkHoldingsCo.Ltd.ItispreparedonthebasisoftheoriginaltasteofInnerMongolianmilkwithteaandafolktonicprescription.Thefreshmilkandfinepressedteaareprocessedintoapowderthroughsterilizing,vacuum-condensinganddryspraying.

简介：反应粉末水泥(RPC)的三种类型的影响行为用测试方法的裂口Hopkinson出版社酒吧(SHPB)被学习。这些RPC分别地与0%，3%，和4%的钢纤维体积部分被准备。压力紧张关系，紧张率敏感阀值价值，动态力量增加因素，弹性的模量和使遭到影响负担的这些RPC标本的失败模式被调查。从测试，50s1的紧张率敏感阀值价值被获得。试验性的结果看了那紧张率什么时候从阀值价值增加了到RPC的最大的压力增加了大约20%的95s1,，RPC的弹性的模量增加了大约30%。当使遭到了影响时，有钢纤维加强的RPC标本的失败模式与RPC矩阵标本的很不同装载。在装载率的类似的影响下面，在钢纤维开发的裂缝增强了RPC标本，虽然RPC矩阵标本被分解为小片。

简介：在中国的大陆的主要工业矿物质粉末的最近的年度输出是超过1亿t，由象粉碎，分类，分离/纯化，和表面修正的如此的支持的技术的活跃开发伴随了。特别地，为准备包含的极其细小的粒子的现在的纸评论技术弄干并且弄湿处理，修正和作文，白陶土泥土的锻烧，并且球形/无角的工业矿物质处理。

简介：Nanoscalemullitepowderweresynthesizedviasolgel-SCFDandmiddletemperaturetreatmentbyusingAIP(aluminum-isopropoxde)andTEOS(tetraethylorthosilicate)asstartingmaterials.Bothofthebinaryaerogelofalumina-silicaandcalcinednanoscalematerialswereinvestigatedbyusingTG-DSC(thermogravimetry-differentialscanningcalorimeter),TEM(transmissionelectronmicroscope),XRD(X-Raydiffractometer)andspecificsurfaceareaandporosimetry.TG-DSCindicatedtheremovalofmostofthevolatiles,i.e.15.98%uptoabout700℃,andintheDSCcurve,existenceoftwoexothermicpeakatabout445℃and1015℃maybeduetothecrystallizationofSi-O-Al-Oindiphasicgelsandmullitizationandasmallendothermicpeakatabout805℃indicatedthedecompositionofstructuralwatermolecules.OnthecolligationoftheresultsofTG-DSC,XRDandTEM,thebeginningtemperatureofmullitizationinAl2O3-SiO2aerogelsystemcanbeconfirmedatabout1015℃.XRDresultsalsoshowedtheformationofmulliteattherange1100-1200℃.TEMandsurfaceareaandporosimetryresultsshowedthatthenanosizedmullitewerecalcinatedat1100and1200℃exhibitedsize30nmand50nm,specificsurfacearea138.91m^2/gand95.81m^2/g.

简介：Duetoitshighpolishingefficiency,longworkinglifeandwideapplicationrange,REpolishingpowderhasbecomethemostpopularfinepolishingmaterial.Inrecentyears,accompanyingtherapiddevelopmentofelectronicinformationtechnology,thedemandforpolishingpowderis

简介：Thesynthesisofβ'-sialonpowderbycarbothermicreductionofclayfollowedbynitridationhasbeencarriedout.Theeffectofchargemixture,temperature,holdingtimeandnitrogenflowrateonsynthesiswasexamined.ThefiredsamplewasidentifiedbyXRDandthenitrogencontentoffiredsamplewasmeasured.Thesynthesisprocessofsialonpowderwasdescribed.

简介：用新颖的干粉方法合成系列沸石的研究已从五元环沸石延伸到具有四元环和六元环的方钠石。本研究运用干粉方法在Ｎａ２Ｏ－ＳｉＯ２－Ａｌ２Ｏ３混合物中分别以乙醇胺和乙二胺－氟化物为模板，合成出了方钠石。有机模板剂以吸附态模板方式进入体系。用ＸＲＤ数据、扫描电镜图及红外光谱测试结果对实验产品做了表征。结果表明，干粉体系制备的方钠石的晶胞参数小于水热体系和非水体系合成的方钠石的相应值。而以乙醇胺为模板制备的方钠石与以乙二胺－氟化物为模板的样品比较，后者具有较快的晶化速度、较小的晶胞体积和晶粒更多还原

简介：LowcostsiliconcarbonnanometerpowderwassynthesizedbycarbothermalreductionmethodwithnanometerSiO2andcarbonasrawmaterial.Itssynthesisthermodynamicswerediscussed.TheinfluenceofLaonTG-DSCcurvewasalsoanalyzed.ItindicatedthatthesynthesisprocessofSiCpowderhadtwosteps.InthefirststeptwomedialproductionsofSiOgandCOgformed,andinthesecondstep,β-SiCwasfinallysynthesized.After0.3%Laadded,atthefirststep,theinitiatoryformingtemperatureofproducingSiO(g)andCO(g)declinedfrom1351.4to1250.9℃,andthethermalactivationenergydecreasedfrom223.6to34.7J·g-1;atthesecondsteptheinitiatoryformingtemperatureofsynthesizingβ-SiCpowderdeclinedfrom1526.5to1357.8℃,andthethermalactivationenergydecreasedfrom693.7to295.7J·g-1.WithoutLaadded,thebestsynthesistechnologyforβ-SiCpowderwas1550℃for120min,averagepowderdiameterwasbiggerabout150nm.WithLaadded,thebestsynthesistechnologywas1500℃for120min,averagepowderdiameterwasabout100nm.

简介：TheelectrochemicalbehaviorsandthedetectionofNO2-haveattractedincreasingattentionrecentlybecauseoftheimportantrolesplayedbyNO2-inenvironmentandlifeprocesses.Thus,advancedtechniquesforthedetermination,especiallyon-sitedetermination,ofthenitriteinfoods...

简介：

简介：Thephenomenonofparticleinteractioninvolvedinpulmonarydrugdeliverybelongstoawidevarietyofdisciplinesofparticletechnology,inparticular,fluidization.Thispaperreviewsthebasicconceptsofpulmonarydrugdeliverywithreferencestofluidizationresearch,inparticular,studiesonGeldartgroupCpowders.Drypowderinhalerdevice-formulationcombinationhasbeenshowntobeaneffectivemethodfordeliveringdrugstothelungfortreatmentofasthma,chronicobstructivepulmonarydiseaseandcysticfibrosis.Evenwithadvanceddesigns,however,deliveryefficiencyisstillpoormainlyduetopowderdispersionproblemswhichcausepoorlungdepositionandhighdosevariability.Drugparticlesusedincurrentinhalersmustbe1-5mindiameterforeffectivedepositioninsmall-diameterairwaysandalveoli.Thesepowdersareverycohesive,havepoorflowability,andaredifficulttodisperseintoaerosolduetocohesionarisingfromvanderWaalsattraction.Theseproblemsarewellknowninfluidizationresearch,muchofwhichishighlyrelevanttopulmonarydrugdelivery.

简介：

简介：Thepropertiesandlowandmediumtem-peraturebondingmechanismsofvariedtypesofSiO2ultrafinepowderusedinceramicandrefractoryandthetemperatureatwhichSiO2ultrafinepowderbegantoreactwithAl2O3werestudied,AndinitialresearchesoneffectsofultrafinepowdersofAl2O3,SiC,3Al2o3·2SiO2,MgO·Al2O3andZrSiO4onpromotingsinteringweremade.TheresultsindicatedthatamongvarioustypesofSiO2ultrafinepowder,non-crystalsil-icaultrafinepowderwacharacterizedbyitsstructureandproperties,Itcouldyieldconsid-erablesilicagelonitssurfaceatlowtempera-ture,whichthendehydratedandformedSi-O-Sibond,therebydevelopinganettystructurethatcausedhigherbondstrengthatlowandmediumtemperaturesincethenettystructurebasicallyremperaturesincethenettystructurebasicallyreainedastermperturerising.SiO2ultrafinepowderbegantoreactwithAl2O3at700℃,Allofothertypesofultrafinepowderhadeffectsonstimulatingsintering,buttheeffectsweresignificantonlywhentheparticlesizeofultrafinepowderwaslessthan5μm。

简介：Thedynamicmechanicalpropertiesofwoodpowder/polypropylenecompositeswithdifferentwoodcontenttreatedanduntreatedwiththecompatibilizerhavebeenstudied.Ithasbeenfoundthatadditionofwoodpowdersandthecompatibilizercanbothimprovetheviscoelasticityofcomposites.Glasstransitiontemperature(Tg)ofappropriatewoodpowder-filledcompositesdecreased.Thevalueforthestoragemodulus(G')increasedgraduallywithincreasingwoodpowdercontent.Theadditionofthecompatibiliz...

简介：Basedontheformerresearchworkoftheauthors,theresistanceofdifferentsolidparticlesuspensionflowinaverticalpipeisanalysed,andinvestigatedexperimentally.Theapplicableformulasofpressuredroparepresented.Twotypesofpar-ticles,talcumpowderandglassbeads,areconvcyedinthetestwhichhasbeencarriedoutatvariousairvclocitiesof10to28m/sandattheratioofsolids-airmassflowraterangedfrom0to2.Theexperimentalresultsshowagoodagreementwiththecalculatedones.

简介：Immunereactionstoforeignorself-antigensleadtoprotectiveimmunityand,sometimes,immunedisorderssuchasallergiesandautoimmunediseases.Antigenpresentingcells(APC)includingepidermalLangerhanscells(LCs)playanimportantroleinthecourseandoutcomeoftheimmunereactions.Epidermalpowderimmunization(EPI)isatechnologythatoffersatooltomanipulatetheLCsandthepotentialtoharnesstheimmunereactionstowardspreventionandtreatmentofinfectiousdiseasesandimmunedisorders.

简介：TheCW-CO2laserdrivengasreactionwasappliedtopreparenano-sizedSiCpowder,SiH4andC2H4ofhighpurties,asstartingmaterials,weremixedtacertainrationandintroducedintotheresactioncell.Thegasesflewacrossthelaserbeamorthogonallyandthuswereheatedbylaserbeam.Thenano-sizedSiCultrafinepowderwswereformedthroughthermicgasreation.Thefinalproductivityofthisprocesswas97%,Theobtainedpowderswerecharacterizedandanalyzed.ChemicalanalysisrevealedthattheSiCcontentwas95.38wt%,Oxygen,theprimaryimpurity,weighted1.32%whiletraceimpurities,suchascalcium,magnesiumandothermetals,wereonly0.03%,XRD,XPSandTEMindicatedthatthpowderparticleswerenearlysphericalandnotagglomerated.Theparticlesizerangedfrom10nmto25nmwithanaverageof15nm,Theparticlestredtobenoncrystalline.

简介：竹子powder/polycaprolactonecomposites(BPPC)被转矩电流计准备调查配方的效果，处理在变阻器上调节BPPC的逻辑性质。词法行为和BPPC的机械性质也被学习。结果证明合成材料的最佳配方由70%polycaprolactone组成，30%竹子根据体积搽粉，联合代理人的铝酸盐的1.6%，1.2%硬脂的酸，和到竹子的2%石蜡根据质量搽粉比率。处理条件参数的最佳为BPPC在100°C在−1和温度在50r·m作为旋转速度被决定。BPPC(包含30拷贝竹子粉末)拥有的著名界面的相容性和BPPC的机械性质。

简介：X-rayfluorescencespectrometry(XRF),X-raypowderdiffractometry(XRD)andscanningelectronmicroscopy(SEM)wereusedtocharacterizethechemicalcomposition,phaseconstituentandmicrostructureofthecoalgasificationslag.Sialonpowdersweresynthesizedbycarbothermalreductionandnitridationusingthecoalgasificationslagasrawmaterials.Theexperimentalresultsshowedthatglassandamorphouscarbonwerethemainphases,quartzandcalciteasminorcrystallinephaseswerealsopresentedinporouscoalgasificationslag.MainconstituentsofcoalgasificationslagwereSiO2,Al2O3,CaOandresidualcarbon.SialonpowderwithCa-α-Sialonasmaincrystallinephasecanbesynthesizedwhencoalgasificationslagpowderswerereducedandnitridedat1500℃for9husingnitrogenflowof500ml/min.ThecoalgasificationslagisavaluableandeconomicstartingmaterialforpreparingSialonpowders.

简介：