简介：Itisproposedthatdoublelevelprogrammingtechniquemaybeadoptedinsynthesisstrategy.Optimizationofheatexchangernetworkstructuralconfiguration(themasterproblem)maybesolvedattheupperlevel,leavingtherestoperatingconditions(theslaveproblem)beingoptimizedatthelowerlevel.Withtheuniquenessinmind,anHENsynthesisexpertsystemmaybeemployedtoaddressboththelogicalconstraintsandtheglobaloperationparameters′optimizationusingenhancedsequentialnumberoptimizationtheory.Casestudiesdemonstratethatthesynthesisstrategyproposedcaneffectivelysimplifyboththeproblem-solvingandthesynthesisprocess.Thevalidityofthestrategyrecommendedisevidencedbycasestudies′resultscompared.

简介：薄emitter结构被介绍进相对地交换的负阻电晶体(RSD)改进它的刺激特征。根据刺激状况的分析，薄emitter结构能够在刺激过程期间为被触发的血浆层P1减少抽取行动，并且令人满意被触发的电的充电不能精疲力尽因此使RSD能一致地打开的要求。在状态上薄emitterRSD等价于一个不对称的大头针二极管模型。RSD的前面的电压落下与做的减少掉落的模拟结果表演在某个范围在p开+-emitter，并且当做的集中是极其低的时，p+-emitter的宽度的减少能获得低前面的电压落下。薄emitterRSD薄片被sintering艾尔在n-Si上做。测试结果证明他们的刺激过程是一致的，当山峰变换电流是5500A时，电压落下是7.5V。

简介：Basedonthemechanismoftheeffectofhydrationontheheatstabilityoflysozymeandthetheoryofwatermoleculeclusters,theeffectofstructure-changedwateronheatstabilityoflysozymehasbeenstudied.Theresultsobtainedbydifferentialscanningcalorimetry(DSC)showedthatthethermaldenaturationtemperatureoflysozymehadbeenelevated8.47Kthroughhydrationoflysozymewithprocessedwaterwhosestructurehadbeenchangedsoitwascalled'structuredwater'comparedtoordinarywater.Thereasonisthatstructuredwaterchangedthedipolemomentofwatermoleculesandeasilyformedcyclicwaterhexamerorcage-likewaterhexamer,sothattheinteractingforceofmaintainingthree-dimensionalconformationoflysozymecouldbereinforced.

简介：为了在第一水和上调查盐集中和结冰融化(英尺)的效果，在Zn(NO3)Zn2+轰炸离子2水的溶液，扩大X光检查吸收罚款结构(EXAFS)光谱学被用来检验Zn(NO3)的Zn小锚EXAFS系列有在英尺处理前后的各种各样的集中的2水的溶液。包括水和数字，Zn-O距离和热混乱，Zn2+离子的第一水和壳的结构的参数上的盐集中和结冰融化的影响被分析。结果证明Zn2+离子与Zn-O让3.26.8位最近的氧邻居距离being0.2020.207nm。在高度集中的溶液，Zn2+离子与在一种有四面的形式的四个水分子是含水的。Zn(NO3)的冲淡2水的答案增加在有他们的八面的安排的到六的Zn2+离子的第一水和壳的水分子的数字。两在当FT处理在Zn(NO3)被操作时，离子和热混乱的度增加的Zn2+的第一水和壳的水和数字2水的溶液。

简介：Thefollowingarticlepublishedonlineat10July2017,DOI:10.1007/s12209-017-0075-9,hasbeenretractedbyagreementbetweentheauthorsandthejournal'seditors.Theretractionisduetoduplicatepublication,fig.1,2,3,4,6,7,12,14,15,table1,2,3,4,5,6inthepaperhadalreadybeenpublishedinSteelandCompositeStructures,Vol21,no1.Theonlineversionofthisarticlecontainsthefulltextoftheretractedarticleaselectronicsupplementarymaterial.

简介：Thisstudyprovidesadetailedreportonthesynthesisofsphericalactivatedcarbonwithmesoporousstructureusingasolublelowmolecularweightphenolicresolprecursorthroughanammoniumalginateassistedsol–gelmethod.TheeffectsofcalcinatingtemperatureandtheadditionofCaCO3asapore-enlargingagentontexturestructureandcatalyticperformanceinisobutanedehydrogenationtoisobutenewereinvestigated.CharacterizationofN2sorption,mechanicalstrengthtests,andopticalphotographsconfirmedthattheobtainedcarbonmaterialshadhighmechanicalstrength,agooddegreeofsphericity,andalargesurfacearea.IntroducingCaCO3asapore-enlargingagentduringthepreparationprocesspromotedtheformationofamesoporousstructureofcarbonspheresandevidentlyincreasedthesurfaceareaandoxygencontent,whichcanimproveisobutaneconversionandisobuteneselectivityofthesecarbonspheres.Theconversionofisobutanereachedupto28%forthissphericalactivatedcarbon,andtheselectivityofisobutenereachedupto96%.Isobutaneconversionincreasedwithanincreaseincalcinationtemperatureduetoanincreaseintheoxygencontent,whereastheselectivityofisobutenedecreasedduetotheslightdecreaseinthespecificsurfacearea.

简介：TheeffectofMnsubstitutionforpartialFeinRFe11Tionstructureandmagneticpropertiesofcompoundswasresearched.RFe7Mn4Tisamples(R=Y,Tb,Dy,Ho,Er)werepreparedbymeansofvacuumarc-meltingandsubsequentvacuumannealing.ThestructureandmagneticpropertiesofRFe7Mn4TicompoundswereinvestigatedbyX-raypowderdiffractionandmagneticmeasurements.Thefollowingconclusionswereobtained:alltheRFe7Mn4TicompoundscrystallizeintheThMn12-typestructure.Thelatticeconstantsandtheunit-cellvolumechangedwiththeincreaseofatomicnumberforR=Y,Th,Dy,Ho,andEr.ThecompensationcharactersappearfortheDyFe7Mn4TiandHoFe7Mn4Ticompounds,andthecompensationtemperatureswereabout123Kand90K,respectively.TheCurietemperature,thesaturationmagnetization,andsaturationmomentofRFe7Mn4Ticompoundsweregiven.

简介：ZrO_2-SnO_2-TiO_2(ZST)系统陶艺的微波电介质性质作为Sb_2O_5掺杂物的数量的功能被学习。与0-0的增加。5%Sb_2O_5(臼齿的比率)，有Sb~(5+)离子的Ti~(4+)离子的替换减少了sintering温度并且由于氧空缺的减小增加了优秀因素Q。当Sb~(5+)的数量进一步增加了时(超过0.5%)。Q被增加电子浓度减少。当与0.5%Sb_2O_5做的系统是在为6h的1150℃的sintered时，相对的绝缘的经常的ε，Qf_0，和反响的频率(TCF)的温度系数是38.46，44500GHz，20.0x10~(-6)/℃,分别地，在6GHz。