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312 个结果
  • 简介:Thegrouptimedelaysandamplitudesofthenormalmodearederivedusingthenormalmodefilter.Theseabottomsoundspeed,densityandattenuationareinverselydeducedbymatchingthegrouptimedelaysandtheamplitudeofthenormalmode.Ageneticalgorithm(GA)isusedforoptimizationsearchintheparameterspace.Theinvertedattenuationhasthenonlinearfrequencyrelationshipa=0.29f1.91dB/m(theunitoffrequencyiskHz)inthefrequencyrange200-500Hz.Thetheoreticaltransmissionlosscalculatedusingthededucedparametersmatchestheexperimentdataverywell.

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  • 简介:SystematicgeochemicalstudiesoftheProterozoicLengjiaxiGroupinnortheasternHunanProvincesuggestthattheLengjiaxiGroupisaAu-As-Sb-Wassociation-typeAu-bearingturbiditeformation.ThecontentsofAu,As,Sb,W,Cr,Mn,PbandZnintheturbiditeformationaremorethantwotimesashighastheaveragecontentsoftraceelementsintheuppercontinentalcrust.ThelowabundanceofAgandtheclosecorrelationbetweenAuandAsaretwoimportantcharacteristicfeatures.IntheAu-bearingturbiditeformationtheenrichmentofgoldisduetotheextensiveoccurrenceofAu-bearingpyrites.HighercontentsofAu,W,SbandAginthegreywackeindicatethattheyalsoexistintheformofheavyminerals.Au,Ag,As,Sb,WandREEintheAu-bearingturbiditeformationhaveaclosegeneticrelationwiththechemistryofthegolddeposits.

  • 标签: 金矿床 分布 示踪元素 湖南 原生代 成矿作用
  • 简介:Acomparisonoftheadsorptionofbenzoicacidandp-nitrobenzoicacidonthenewhypercrosslinkedpolymericadsorbentAM-I,withthatbymacroporousAmberliteXAD-4,includingtheequilibriumadsorptionisotherms,thedynamicadsorptionbehaviorsthroughcolumnandtheadsorptionthermodynamicswerestudied.ResultsshowthatFreundlichequationgivesafittingadsorptionisotherm.ThespecificsurfaceofAM-lisonly67%ofthatofAmberliteXAD-4,buttheadsorptioncapacitiesonAM-1aremuchhigherabout125%~166%thanthatonAmberliteXAD-4,whichiscontributedtothemicroporemechanismandpolarity.Thenegativevaluesoftheadsorptionenthalpyareindicativeofanexothermicprocess.Enthalpyandfreeenergychangesofadsorptionbothmanifestaphysic-sorptionprocess.Thenegativevaluesoftheadsorptionentropyindicatethattheadsorptioniswellconsistentwiththerestrictedmobilitiesandtheconfigurationsoftheadsorbedbenzoicacidmoleculesonthesurfaceofstudiedadsorbentswithsuperficialheterogeneity.Bothadsorbentswereusedinmini-columnexperimentsforadsorbingbenzoicacidexpectingtoelucidatethehigherbreakthroughadsorptioncapacityofthenewhypercrosslinkedpolymericadsorbentAM-1ascomparedwiththatofAmberliteXAD-4.

  • 标签: 吸附作用 苯甲酸 P-硝基苯甲酸 高交联性苯酚基团Pst吸附剂 热力学性质 分子筛
  • 简介:Inordertomeettheneedsofhigh-speeddevelopmentofopticalcommunicationsystem,aconstructionmethodofquasi-cycliclow-densityparity-check(QC-LDPC)codesbasedonmultiplicativegroupoffinitefieldisproposed.TheTannergraphofparitycheckmatrixofthecodeconstructedbythismethodhasnocycleoflength4,anditcanmakesurethattheobtainedcodecangetagooddistanceproperty.Simulationresultsshowthatwhenthebiterrorrate(BER)is10-6,inthesamesimulationenvironment,thenetcodinggain(NCG)oftheproposedQC-LDPC(3780,3540)codewiththecoderateof93.7%inthispaperisimprovedby2.18dBand1.6dBrespectivelycomparedwiththoseoftheRS(255,239)codeinITU-TG.975andtheLDPC(32640,30592)codeinITU-TG.975.1.Inaddition,theNCGoftheproposedQC-LDPC(3780,3540)codeisrespectively0.2dBand0.4dBhighercomparedwiththoseoftheSG-QC-LDPC(3780,3540)codebasedonthetwodifferentsubgroupsinfinitefieldandtheAS-QC-LDPC(3780,3540)codebasedonthetwoarbitrarysetsofafinitefield.Thus,theproposedQC-LDPC(3780,3540)codeinthispapercanbewellappliedinopticalcommunicationsystems.

  • 标签: 准循环LDPC码 光通信系统 构造方法 有限域 乘法群 低密度奇偶校验
  • 简介:组织一个链球菌(气体),重要人的病原体,能引起包括表面的感染的感染并且潜在地的各种各样的类型致命的感染,和搜索因为阻止煤气的感染的一支有效疫苗是进行中的许多年了。这份报纸把FbaA(在气体的表面上表示的Fn有约束力的蛋白质)的immunogenicity和immunoprotection与M蛋白质的作比较,气体的最好的immunogen。为有免疫力的反应的试金显示出那FbaA,类似于M蛋白质,能在BALB/c老鼠导致蛋白质特定的高IgGtiter。而且,跟随煤气的挑战,与FbaA使免疫的老鼠与M显示出象那些的一样的保护的率蛋白质。这些结果显示FbaA处于在在老鼠对煤气的挑战导致保护的免疫的M蛋白质的能力是类似的。

  • 标签: A群链球菌 M蛋白 免疫力 保护率 能力 浅表性感染
  • 简介:Thispaperproposesagroupdecisionmakingmethodbasedonentropyofneutrosophiclinguisticsetsandgeneralizedsinglevaluedneutrosophiclinguisticoperators.Thismethodisappliedtosolvethemultipleattributegroupdecisionmakingproblemsundersinglevaluedneutrosophicliguisticenvironment,inwhichtheattributeweightsarecompletelyunknown.First,theattributeweightsareobtainedbyusingtheentropyofneutrosophiclinguisticsets.Thenthreegeneralizedsinglevaluedneutrosophiclinguisticoperatorsareintroduced,includingthegeneralizedsinglevaluedneutrosophiclinguisticweightedaveraging(GSVNLWA)operator,thegeneralizedsinglevaluedneutrosophiclinguisticorderedweightedaveraging(GSVNLOWA)operatorandthegeneralizedsinglevaluedneutrosophiclinguistichybridaveraging(GSVNLHA)operator,andtheGSVNLWAandGSVNLHAoperatorsareusedtoaggregateinformation.Furthermore,similaritymeasurebasedonsinglevaluedneutrosophiclinguisticnumbersisdefinedandusedtosortthealternativesandobtainthebestalternative.Finally,anillustrativeexampleisgiventodemonstratethefeasibilityandeffectivenessofthedevelopedmethod.

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  • 简介:TheLuoheCityShuangHuiIndustrialGroupCo.LtdinHenanProvinceisalargeenterprisegroupwiththeLuoheMeat-PackingMillasitsnuclearunit.Itisatransregional,trans-industrialandtransnationalgroupenterprise,thecountry’slargestmeatexportandcannedfoodproductionbase,andthecountry’slargesthamandsausageproducer.Itsproductsareverypopularathome,andexportedtomorethan20countriesandregionsinEuropeandAsia.Itranked107thamongthenationaltop500indus-

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  • 简介:我们在经历了激进的前列腺切除术(RP)的病人之中根据前列腺癌症的clinicopathological特征调查了瘤参与(PTI)的百分比的预示的意义。没有任何neoadjuvant或辅助治疗,经历了在2003年9月和2008年3月之间的RP的534个病人的回顾的研究被执行。有各种各样的clinicopathological特征和生物化学的没有复发的幸存的PTI的协会经由uni-和multivariate分析被检验。multivariate模型的预兆的精确性与在曲线下面操作导出特征的区域的接收装置被估计。PTI被表明显著地与外科手术前的前列腺特定的抗原(PSA)被联系水平(P=0.001),病理学的格利森分数(P<;0.001),extraprostatic瘤扩展(P<;0.001),精囊侵略(P<;0.001)并且积极外科的边缘(P<;0.001)在univariate分析。当病人们被成层进疾病风险组时,PTI在低风险的组(P=0.033)然而并非中介之中仅仅是在multivariate分析的生物化学的没有复发的幸存的一个独立预言者--(P=0.287)或高风险的组(P=0.828)。PTI的增加显著地没增加分别地在彻底的病人(P=0.459)和低风险的组(P=0.268)之中为生物化学的没有复发的幸存的预言设计的multivariate模型的精确性。在结论,尽管PTI看起来比在有更高的风险疾病的那些之中是在有低风险的疾病的病人之中的一个更重要的预示的因素,总的来说,PTI不能提供在罐头已经经由确定的预示的因素被获得的以外的另外的预示的信息。

  • 标签: 前列腺癌 辅助治疗 风险 预后 疾病 肿瘤
  • 简介:瞄准:检验在试验性的严重尖锐胰腺炎(树液)抵销抗体的反高的活动性组盒子1的效果(HMGB1)。方法:傻瓜被在C3H/HeN老鼠创造关上的十二指肠的循环劝诱。傻瓜在抵销抗体(200大杯)的anti-HMGB1的intraperitonealinjection以后立即被劝诱。胰腺炎,机关损害(肝,肾和肺),和到胰的细菌的translocation的严厉被检验在树液的正式就职以后的12h。结果:显著地抵销抗体的Anti-HMGB1在树液改进了浆液淀粉酶水平的举起和胰和肺的组织学的改变。Anti-HMGB1抗体显著地也改善了在SAP.However的浆液丙氨酸aminotransferase和creatinine的举起,anti-HMGB1抗体变得更坏细菌的translocation到胰。结论:BlockadeofHMGB1稀释了树液的发展并且联系了机关机能障碍,建议HMGB1may充当为在树液的煽动性的反应和机关损害的一个关键调停人。

  • 标签: 急性胰腺炎 十二指肠 细菌易位 丙胺酸
  • 简介:就制造者在无常下面冒险心理因素和信息歧义的决定而言,新奇TOPSIS基于前景理论(磅)和trapezoidalintuitionistic,为组决策的模糊数字(TrIFNs)被调查,在哪个标准价值和标准重量拿TrIFNs的形式,并且决定制造者的重量是未知的。第一,为TrIFNs的距离措施被用来在trapezoidalintuitionistic下面导致值功能模糊环境。第二,距离措施的概念和trapezoidalintuitionistic模糊加权的平均操作员被采用导致决定制造者的重量,因此,决定制造者选择能被聚集。然后,基于磅的分离措施和相对亲密系数被定义并且为在trapezoidalintuitionistic下面评价选择的一个算法模糊环境被建议。最后,一个数字例子进一步说明建议TOPSIS方法的实物和有效性。

  • 标签: TOPSIS法 群体决策 模糊数 梯形 直觉 TOPSIS方法
  • 简介:新奇润滑油添加剂dodecoxyl钡硼酸盐被综合。产品被FTIR,元素的分析,thermo-gravimetric分析(TGA),和扫描电子显微镜学(SEM)描绘。四球的测试证明到油菜籽油的添加剂的某个集中的增加能有效地增加带负担的能力(P_B价值),穿的抵抗,和减少磨擦的能力。SEM观察证实添加剂能导致wear疤的一条减少的直径。

  • 标签: 润滑油 硼酸钡 菜油 摩擦学 耐磨性
  • 简介:Amethodofminimizingrankingsinconsistencyisproposedforadecision-makingproblemwithrankingsofalternativesgivenbymultipledecisionmakersaccordingtomultiplecriteria.Foreachcriteria,atfirst,thetotalinconsistencybetweentherankingsofallalternativesforthegroupandtheonesforeverydecisionmakerisdefinedafterthedecisionmakerweightsinrespecttothecriteriaareconsidered.Similarly,thetotalinconsistencybetweentheirfinalrankingsforthegroupandtheonesundereverycriteriaisdeterminedafterthecriteriaweightsaretakenintoaccount.Thentwononlinearintegerprogrammingmodelsminimizingrespectivelythetwototalinconsistenciesabovearedevelopedandthentransformedtotwodynamicprogrammingmodelstoobtainseparatelytherankingsofallalternativesforthegroupwithrespecttoeachcriteriaandtheirfinalrankings.Asupplierselectioncaseillustratedtheproposedmethod,andsomediscussionsontheresultsverifieditseffectiveness.Thisworkdevelopsanewmeasurementofordinalpreferences’inconsistencyinmulti-criteriagroupdecision-making(MCGDM)andextendsthecook-seifordsocialselectionfunctiontoMCGDMconsideringweightsofcriteriaanddecisionmakersandcanobtainuniquerankingresult.

  • 标签: 群决策 多准则 编程方法 偏好 序数 标准制定
  • 简介:TwospeciesofN-arylpyrazolescontainingactiveaminogroupweresynthesized.AndformylationsofN-arylpyazolescontainingaminoindifferentpositionofpyrazoleringsusingVilsmeier-Haackreactiongaveaseriesofusefulpyrazoleintermediates.Theimportantfeaturesofthisprotocolwerecheapmaterials,easyprocess,mildreactionconditionsandgoodyieldofproducts.

  • 标签: Vilsmeier-Haack反应 N-芳基吡唑 甲酰化 氨基 合成