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7 个结果
  • 简介:the way a military general organises his army would affect the behaviour of the troops in battle. In the same way,the general must change his strategy accordingly. In other words,an existing organisation or structure should not be viewed as constraints to change if the strategy dictates that the change is necessary. In this aspect

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  • 简介:the way a military general organises his army would affect the behaviour of the troops in battle. In the same way,the general must change his strategy accordingly. In other words,an existing organisation or structure should not be viewed as constraints to change if the strategy dictates that the change is necessary. In this aspect

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  • 简介:The title should be centered at the top of page 1 (DO NOT use a title page - it is a waste of paper for our purposes),The title is not a section,The body of the Results section is a text-based presentation of the key findings which includes references to each of the Tables and Figures. The text should guide the reader through your results stressing the key results which provide the answers to the question investigated. A major function of the text is to provide clarifying information. You must refer to each Table and/or Figure individually and in sequence (see numbering sequence)

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

  • 标签: 热交换器 网络结构 专家系统 运行 优化 化工合成
  • 简介:Basedonthemechanismoftheeffectofhydrationontheheatstabilityoflysozymeandthetheoryofwatermoleculeclusters,theeffectofstructure-changedwateronheatstabilityoflysozymehasbeenstudied.Theresultsobtainedbydifferentialscanningcalorimetry(DSC)showedthatthethermaldenaturationtemperatureoflysozymehadbeenelevated8.47Kthroughhydrationoflysozymewithprocessedwaterwhosestructurehadbeenchangedsoitwascalled'structuredwater'comparedtoordinarywater.Thereasonisthatstructuredwaterchangedthedipolemomentofwatermoleculesandeasilyformedcyclicwaterhexamerorcage-likewaterhexamer,sothattheinteractingforceofmaintainingthree-dimensionalconformationoflysozymecouldbereinforced.

  • 标签: 溶菌酶 热稳定性 水合作用 影响机制 结合水 差示扫描量热法
  • 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.

  • 标签: 金属间化合物 RFe7Mn4Ti化合物 ThMn12型结构 磁性 饱和磁化强度 饱和磁矩
  • 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。

  • 标签: 陶瓷工艺 微波介电性能 Sb2O5搀杂 微波陶瓷 ZrO2-SnO2-TiO2