简介：Selectivelasermelting(SLM)isoneofthemostpopularadditivemanufacturing(AM)technologiesformetalparts.Slicingresult,especiallyforthedifferentdimensionalslicinggeometryanditstopology,playsanimportantrolebecauseofthethermodynamicbehaviorofmetalpowders.Togetcorrectgeometryandreliabletopology,aslicingstrategyforSLMisproposed.Theunavoidablenumericalerrorcausedbysamplingandgeometrictransformationissuppressedfirstly,accordingtoshiftingthez-coordinateofavertexwithasmallvaluesuchtheshiftedvertexisonaslicingplane.Theresultofvertex-shiftingmakesitpossibletoidentifydifferentgeometricfeaturessuchasskinsurfaces,overhangsurfaces,extremeedgesandvolumetricsolid.Second,fromgeometricprimitivesahierarchyofaxis-alignedboundingboxes(AABBs)isconstructedandusedtospeedupintersectionofslicingplanesagainstsetsoftriangles.Allintersectingsegmentsaregivendifferentsignstodepicttheirgeometricortopologicalinformation.Basedthedifferentsigns,thedifferentdimensionalgeometrythatiseventuallyrepresentedbysimpleandanticlockwiseorientedpolygons,areidentified.Finally,thepolygonsareclassifiedandnestedinamulti-treedatastructuresettoproducecorrecttopologicalrelations.Theresultofdigitalandphysicalexperimentsshowstheproposedslicingstrategyisfeasibleandrobust.

简介：T房间激活是在仅仅通过这个过程后来开始适应有免疫力的反应的一个批评过程特定的T房间区分进调停的武装受动器T房间的na(i)ve抗原实际有免疫力的response.DuringT房间激活，na(i)veT房间经历同种细胞的扩大并且获得能力杀死感染病原体的目标房间或生产为调整有免疫力的反应必要的cytokines。T房间的不恰当的激活或inactivation导致autoimmunity或严重免疫不全。PKC-有选择地在T房间被表示并且为调停要求了T房间激活过程。在PKC-缺乏的老鼠在T房间激活，幸存和activation-inducedcell死亡展出缺点。PKC-有选择地translocates到免疫学的触处并且调停为为T房间activation.Furthermore是必要的NF-B，AP1和NFAT的激活要求的信号，PKC--/-鼠标在vivo在T调停房间的有免疫力的回答的开发显示了多重缺点。PKC-因此是在vivo在T调停房间的有免疫力的回答在多重阶段调整T房间功能的一个批评分子。细胞与分子的免疫学。2006；3(4):263-270。

简介：是的乙炔为选择催化减小的一个减少的代理人(C2H2-SCR)不在一系列金属上被调查交换HY催化剂，在0.16%的反应系统没有，0.08%C2H2，和9.95%O2(卷百分比)在他。到有烃效率的N2的75%没有变换大约1.5在300附近在Ce-HY催化剂上被完成??慍楤摮汯湩獥？？

简介：GesarisagreatheroicepiccreatedcollectivelybyTibetans.Forthousandsofyears,ithasbeencirculatingfarandwidewithinTibetanareasandhasbeenlovedbyTibetans.GesarrepresentsanhistoricalpinnacleofancientTibetanculture.AsnotonlyacrystallizationofTibetan'sintelligence,butalsoaculturaltreasurehouse,Gesarisofhighacademicandaestheticvalue.

简介：AseriesofcarboxylicacidswasesterifiedtothecorrespondingesterswithTiCl_4ascatalystatroomtemperature,inhighyields.Thiscatalystwashighlyeffectivefortheselectiveesterificationofprimaryalcoholswithcarboxylicacids,inthepresenceofsecondaryalcohols,andfortheselectiveesterificationofsaturatedacidwithalcoholinthepresenceofconjugatedacidoraromaticacid.Onaccountofthehighyield,highchemoselectivity,mildcondition,andbeingfreeofotherdehydrants,thisisanefficientmethod.

简介：为了比较在在medication.METHODSA上有选择激光trabeculoplasty(SLT)和那些的病人之间的生活和治疗满足的质量，收到了SLT和用反绿内障药继续的一个控制组的143个绿内障病人上的未来的临床的试用被进行。眼泪分散时间(，但是)，标点角膜炎，对帮助的需要，人工的眼泪的使用和intraocular压力(IOP)的治疗满足调查在基线被测量，6并且12mo.RESULTSSLT能减少从1.56需要的药的吝啬的数字

简介：Theresearchworkonpreparationprocessofactivematerialsoftherareearthionselectiveelectrodesandthevalenceoftheelectrodemembranewerereported.Theactivematerialswerechacterizedbyinfraredspectrum,elementalanalysisandXPS.Wehadstudiedtherareearthionselectiveelectrodesinwhichtheactivematerialsconsistoffunctionalpolymers.Inthispaper,theresearchworkonpreparationprocessandthevalenceoftheelectrodemembranewerereported,whichhasnotbeenseeninliteratureyet.

简介：为FCC石油的选择hydrodesulfurization(HDS)的催化剂的反应上的催化剂，添加剂和催化剂准备方法的活跃金属部件的影响被调查，并且有高HDS性能的RSDS-21催化剂和有高选择的RSDS-22催化剂被RIPP开发。为FCC汽油的选择HDS的催化剂的一个新系列的合成装载表明了优秀desulfurization活动和选择，在常规hydrotreating下面，条件能生产在抗爆索引满足国家排放标准和与更少的损失标准的欧元排放的干净汽油产品。在为FCC石油的选择HDS被采用之上的FCC催化剂的使结束的新系列与好稳定性一起有好适应性到不同化工物品。

简介：TheproductdistributionandgasolinequalityofFCCprocess,especiallytheolefincontent,heavilydependsonthecatalystperformanceintermsofselective/non-selectivehydrogentransferreactionselectivity.Areliableexperimentalprotocolhasbeenestablishedbyusingn-dodecaneasaprobemoleculetocharacterizetheselectivehydrogentransferabilityofcatalyticmaterials.Theresultsobtainedhavebeencorrelatedwiththeperformanceofthepracticalcatalysts.

简介：Nanofibrous碳的材料(NFC)作为有许多应用的材料的一个新班，能催化H2S的选择氧化到硫。在在H2S氧化的NFC结构和它的活动和选择之间的关联是坚定的。如果有更多的订的结构的NFC被综合，在碳的原来的催化剂的部分被增加在催化剂积累的碳减少，选择能被改进，这被表明。

简介：食物可获得性，食谱的作文并且蒙古的瞪羚(Procapragutturosa)的选择放牧在NeiMonggol在Hulunber草地被学习。蒙古的瞪羚的食物可获得性显示出季节的变化。植物生物资源在秋天和冬季比那在春天和夏天是更高的。瞪羚的烘便的作文证明含纤维的部分分别地在春天，秋天，和冬季占据了62.4%，74.8%，和66.0%。喜欢而不是grazeCompositeae的蒙古的瞪羚，Leguminosae，瞀或蒜之类spp。并且在春天和秋天的另外的非禾本草本植物草，如此的asAneurolepidiumchinenseandStipaspp。有选择地在冬季正在喂。

简介：AbstractSelective fetal growth restriction (sFGR) is a severe condition that complicates 10% to 15% of all monochorionic diamniotic (MCDA) twin pregnancies. Pregnancies complicated with sFGR are at high risk of intrauterine demise or adverse perinatal outcome for the twins. Three clinical types have been described according to the umbilical artery (UA) Doppler pattern observed in the smaller twin: type I, when the UA Doppler is normal; type II, when there is persistent absent or reversed end-diastolic blood flow in the UA Doppler; and type III, when there is intermittent absent and/or reversed end-diastolic blood flow in the UA Doppler. Clinical evolution and management options mainly depend on the type of sFGR. Type I is usually associated with a good prognosis and is managed conservatively. There is no consensus on the management of types II and III, but in earlier and more severe presentations, fetal interventions such as selective laser photocoagulation of placental anastomoses or selective fetal cord occlusion of the smaller twin may be considered. This review aims to provide updated information about the diagnosis, evaluation, follow-up, and management of sFGR in MCDA twin pregnancies.

简介：在allogeneic干细胞移植(SCT)，缺乏他们的血缘的禁止的ligand的生来的杀手(NK)房间能导致graft-versus-leukemia回答，没有严重graft-versus-host疾病(GVHD)的正式就职。这个特征能为细胞的免疫疗法被利用。在这研究，我们检验了在整个人的外部血NK房间人口以内表示不同漂亮像免疫球蛋白的受体(KIR)的NK房间子集的选择扩大，面对HLA-Cw3(C1)或Cw4(C2)transfectedK562激发器房间。有C1或C2的KIR+NK房间的Coculture积极K562房间，面对IL-2+；IL-15，触发了错过了他们的血缘的ligand的NK房间的长出。这在整个NK房间人口以内导致了alloreactiveKIR+NK房间的增加的频率。在有缺乏他们的血缘的ligand的K562房间的preculture以后，当时，另外，我们观察到这张alloreactiveNK人口揭示了CD107+房间的更高的数字有相关K562HLA-Ctransfected目标房间的cocultured，作为与有untransfectedK562房间的coculture相比。这提高的反应作为目标用主要白血病的房间被证实。这研究证明那HLA一级表情能调停扭曲NK房间全部剧目并且向白血病的目标房间与提高的alloreactivity为房间充实人口。这个特征可以支持未来NK基于房间的免疫疗法的临床的应用。

简介：三3,3-di(4-substituted-phenyl)-1,1-isophthaloylbis(thiourea)混合物作为新奇中立阴离子受体被设计，并且在好收益由简单步骤综合了。受体1的单个晶体结构证明一个溶剂分子被主人分子通过分子间的氢结合捕获。而且，它作为为存在的一个超分子的系统自我装配丰富内部--并且intramolecular氢结合并且-在苯基组之间的相互作用。他们阴离子受体被检验了由的申请紫外力并且1HNMR光谱学，证明他们比另外的卤化物为氟化物有一种更高的选择。主人和客人在第一个步骤通过氢结合相互作用形成了1:1stoichiometry建筑群，然后在F的过量的存在跟随deprotonation的一个过程吗？在DMF的溶剂。

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简介：IntroductionMoleculeimprintingtechnologyhasmadegreatprogressinmakingchiralstationaryphasewithpredeterminedchiralselectivityagainstenantiomerssuchasaminoacidandtheirderivatives;sugarandtheirderivatives;naproxenandmethylbenZylamine’-’.Functionalmonomer...

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简介：Thisarticleanalyzedtheproblemsarisingfromretrofittingthe800kt/avirgindieselhydrofiningunitintoa1.0Mt/aOCT-MgasolineHDSunitattherefineryofLuoyangPetrochemicalCompany,andtheoptimizedmeasuresaimedatimprovementsinoperationofHDSunit.ThepreliminarycalibrationresultshaveindicatedthehighdesulfurizationrateandgoodselectivityoftheHDStechnologytofulfillthedemandofLuoyangPetrochemicalCompanyforproductqualityupgradingwiththetargetsoftechnicalrevampfullyimplemented.

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简介：Phosphorylatedmesoporouscarbons(PMCs)wereinvestigatedascatalystsinthedehydrationoffructosetohydroxymethylfurfural(HMF).TheacidicPMCsshowbetterselectivitytoHMFcomparedtosulfonatedcarboncatalyst(SC)despiteloweractivity.TheconcentrationofP-OgroupsonthePMCwascorrelatedwiththeactivity/selectivityofthecatalysts;thehighertheP-Oconcentration,thehighertheactivity.However,thehighertheP-Ocontent,thelowertheselectivitytoHMF.Indeed,alowerconcentrationoftheP-OgroupsminimizedthedegradationofHMFtolevulinicacidandtheformationofby-products,suchashumines.Stabilitytestsshowedthatthesesystemsdeactivateduetotheformationofhuminesandwaterinsolubleby-productsderivedfromthedehydrationoffructosewhichblockedthecatalyticallyactivesites.