简介：Thispaperstudiesmechanicalpropertyandfractographyoftheweldedjointsobtainedindifferentweldingparameterssuchasweldingheatandweldingpresswith/withoutgasshieldinTiNishapememoryalloyprecisepulseresistancebuttweldingusingtensilestrengthtest,XRD,SEMandTEMmeasures.Theoptimumweldingparametersobtaininghightensilestrengthweldedjointaregot.Ontheconditionofweldingpressmagnetingcurrent2Aandweldingheat75%,thejointstrengthisthehighest.ThisisimportantfortostudyotherpropertiesofTiNishapememoryalloyfurther.Theexperimentalresultsstatethatargongasshieldhavedifferenteffectsondifferentweldingparameters,lessonweldingpress,butgreatonweldingheat.Butexcessiveweldingpressandweldingheathavegreateffectsonjointtensilestrength.Toohighweldingheatcanproducethenewintermetalliccompound,thisintermetalliccompoundleadtodislocationdensitytoincreaseandformthepotentialcrackinitiation,whichcaneasilymakethejointfractureunderstresseffectanddecreasetheshapememoryratioofjointforhighdensitydislocationgroupsexistinginthetwinnedmartensite.

简介：Roll-leaf-1(rl-1)andspot-leaf-1(spl-1)weretwonear-isogeniclines,whichwereobtainedafter3to4backcrosseswithearlyseasonindicariceZhefu802asrecurrentparent.Hennamacro-lesions,referredasphysiologicalormorphologicalmarkers,begantoappearonleavesat4.5-to6.0-leafstage.Thericeseedlingswereinoculatedat3.5-,5.0-and7.0-leafstageswithhighpathogenicracesZhongA1andZhongB1ofMagnaporthegrisea,respectively.Theresistanceofrl-1,spl-1andZhefu802againstblastwassignificantlydifferent.TheseedlingsofZhefu802at3.5-to7.0-leafstageweresusceptibletoracesZhongA1andZhongB1ofM.grisea,whereasthoseofrl-1andspl-1at3.5-,5.0-and7.0-leafstagesweresusceptible,moderatelyresistantandresistant,respectively.Theseresultssuggestedthattheenhancedresistanceofri-1andspl-1relatedtotheappearanceoftheirmorphologicalmarkerlesions.Theexperimentprovidedabasisforstudyinglesionmimicandhypersensitiveresponseinassociationwithdiseaseresistance.

简介：ZnMn2为抵抗随机存取存储器(RRAM)的O4电影被磁控管劈啪作响与不同设备结构制作。I-V特征，抵抗切换行为，耐力和ZnMn2O4电影被调查。ZnMn2象底部电极的O4电影，使用的希腊语的第二十三个字母和磅，展出双极的抵抗切换(BRS)行为处于低抵抗状态(LRS)处于高抵抗状态(HRS)和细丝传导机制由space-charge-limited传导(SCLC)统治了机制，但是ZnMn2用底部电极展出双极、单极的抵抗切换行为的n-Si的O4电影在幼虫由Poole-Frenkel(P-F)传导机制控制了Ag/ZnMn2O4/p-Si设备拥有最好的耐力和保留特征，交换周期的稳定的重复的数字在是超过1000，保留时间比106秒长。然而，最高的RHRS/R104的LRS比率和最低V在和V离开3.0的，V在Ag/ZnMn2O4/Pt设备。不过Ag/ZnMn2O4/n-Si设备也拥有最高的RHRS/R104,的LRS比率但是V在,V离开,RHRS和R象差的耐力一样的LRS,并且保留特征。

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简介：Theeffectofweldingcurrentontheweldshapeandtensileshearloadduringlaserbeam-resistanceseamwelding(LB-RSW)ofaluminumalloy5052isstudied.Experimentalresultsshowthatthepenetrationdepth,weldwidth,tensileshearloadandtheratioofpenetrationdepthtoweldwidthofLB-RSWarebiggerthanthoseoflaserbeamwelding(LBW)underthesameconditionsandtheformerthreeparametersincreaseasweldingcurrentrises.TheweldshapeofLB-RSWbelow5kAweldingcurrentisnearlythesameasthatofLBW.Theweldmorphologyisprotuberantundertheconditionof5kAweldingcurrentand0.8m/minweldingspeed.Furthermore,themicrostructureoftheweldseamofLB-RSWiscoarserthanthatofLBW.

简介：瞄准：为了在病人调查胰岛素抵抗和糖尿病的临床的参数的流行，由长期的丙肝(CHC)或长期的肝炎B(CHB)影响了。方法：我们回顾地评估了经历了肝活体检视的852个连续病人(726CHC和126CHB)。我们记录了年龄，性别，中高音，类型2糖尿病或新陈代谢的症候群(MS)，身体团索引(BMI)，和明显的疾病持续时间(增加)。结果：年龄，增加，BMI，在有温和/中等的肝纤维变性的病人的MS和糖尿病的流行在CHC是显著地更高的。然而，脂肪变性的度和在肝活体检视评估的肝纤维变性没在CHC和CHB病人之间不同。在多变量分析，年龄，性别，BMI，中高音和糖尿病是为在CHC的肝纤维变性的独立风险因素，而仅仅年龄与在CHB的肝纤维变性有关。我们也评估了在重要脂肪变性之间的协会(>30%)并且年龄，性别，BMI，糖尿病，MS和肝纤维变性。糖尿病，BMI和肝纤维变性与脂肪变性>被联系30%在CHC，而仅仅年龄和BMI与在CHB的脂肪变性有关。结论：这些数据可以显示丙肝病毒感染是为胰岛素抵抗的一个风险因素。

简介：Uptonow,therearenosatisfactorynumericalmethodsforsimulatingwaveresistanceoftrimarans,mainlyduetothedifficultyrelatedwiththestrongnonlinearfeaturesofthepiecehullwavemakingandtheirinterference.Thisarticleproposesanumericalmethodforquickandeffectivecalculationofwaveresistanceoftrimaranstobeusedinengineeringapplications.BasedonWyatt'swork,thenonlinearfreesurfaceboundarycondition,thetimedomainconcept,andthefullnonlinearwavemakingtheory,usingtheRankinesourceGreenfunction,the3-Dsurfacepanelmethodisexpandedtosolvethetrimaranwavemakingproblems,withhighordernonlinearfactorsbeingtakenintoaccount,suchastheinfluenceofthesinkingandtrim,transom,andshipwaveimmersedhullsurface.Andthesoftwareissuccessfullydevelopedtoimplementthemethod,whichisvalidated.Severaltrimaranmodels,includingapracticaltrimaranwithasonardomeandthetransom,areusedasnumericalcalculationsamples,theirwavemakingresistanceiscalculatedbothbythepresentmethodandsomeothermethodssuchaslinear(Dawson)methods.Moreover,samplemodelresistancetestswerecarriedouttoprovidedataforcomparison,validationandanalysis.Throughthevalidationbymodelexperiments,itisconcludedthatpresentmethodcanwellpredictthewavemakingresistance,sinkingandtrim,andtheaccuracyofwavemakingresistancecalculationissignificantlyimprovedbytakingthetrimandsinkingintoaccount,especiallyathighspeeds.

简介：二细菌的老家(BB)抵抗基因，Xa21和Xa4，从IRBB24被介绍进杂交稻restorer线Mianhui725，它高度产生BB，由使用杂交和分子的帮助标记的选择技术。四根相应恢复系线通过与分子的标记测试R目标基因并且分析父母遗传背景被获得。有特定的紧张ofXanthomonasoryzaepv的四根线和他们的混血儿的接种。oryzae，P1，P6和七个代表汉语拉紧病理型，CⅠ-CⅦ，证明所有四根线和他们的混血儿是到BB的高度抵抗、介绍的宽广抵抗光谱。G46A/R207-2的混血儿显示了好农学的人物和高产潜力，并且R207-2被称为Shuhui207。

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简介：ThetemperaturedependenceofresistivityρofYSZdopingcompositeof(1-x)La0.67Ca0.33MnO3+xYSZandY2O3dopingcompositeof(1-y)La0.67MnO3+yY2O3isinvestigated,respectively,inatemperaturerange77-300K,wheretheYSZrepresentsyttria-stabilizedzirconia(8mol%Y2O3+92mol%ZrO2).ExperimentalresultsshowthattheYSZdopinglevelhasimportanteffectsonboththemetal-insulator(M-I)transitiontemperaturesandzerofieldresistivityofthecompositesof(1-x)La0.67Ca0.33MnO3+xYSZ.However,theY2O3dopinglevelhaslittleeffectontheM-Itransitiontemperaturesandthezerofieldresistivityof(1-y)La0.67Ca0.33MnO3+yY2O3onlyincreasesslightly.Thedifferencebetweenthetwotypesofcompositesmaymainlyresultsfromthedifferentdistributionofhighresistancephasesatthegrainboundariesand/orsurfacesofLa0.67Ca0.33MnO3grainsratherthanthesubstitutionofLa^3+ionswithY^3+ions.

简介：这研究检验从一种蚊虫quinquefasciatus的一张领域人口在单个蚊子涉及permethrin抵抗的开发的基因变化和机制，HAmCqG0,并且与领域HAmCqG0紧张。六upregulated细胞色素P450基因，CYP9M10，CYP9J34，CYP6P14，CYP9J40，CYP6AA7，和CYP4C52v1，以前作为是在抵抗HAmCqG8蚊子在3紧张的幼虫被检验(易受影响的平板，父母HAmCqG0和选择permethrin的高度抵抗的HAmCqG8)和8HAmCqG0单个鸡蛋的木排殖民地，盖住危险性/抵抗的层次的一个范围到permethrin并且在t展出不同变化有到permethrin的最低忍耐的2根线并且从殖民地Cx_SERC5和Cx_SERC8，完全在钠隧道的L-to-Fkdr地点忍受易受影响的A等位基因显示出与平板紧张相比测试的所有6P450基因的更低或类似的层次，建议这2排队能在在HAmCq蚊子描绘杀虫药剂抵抗的未来研究被用作参考蚊子。这研究也提供在一张人口以内在个人涉及杀虫药剂抵抗的机制的详细调查：有到permethrin的抵抗的提高的层次的个人都显示了提高的抵抗机制任何一个在钠隧道，或两个P450基因表示，或L-to-F变化铺平的至少一个潜力。

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简介：Thenewly-hatchednymphsofthesmallbrownplanthopper(SBPH),Laodelphaxstriatellus,includingfieldandsensitivepopulations,weresubjectedtothehigh-temperature(35°C)treatment.Thenumberofyeast-likeendosymbiotesinSBPHreducedby23.47%-34.23%,57.86%-61.51%and88.96%-90.71%afterthehigh-temperaturetreatmentfor1d,2d,and3d,respectively.However,thesizeofyeast-likeendosymbioteswasnotobviouslyaffected.ResistanceofSBPHtothreeinsecticides(imidacloprid,chlorpyrifosandfipronil)decreasedwiththeincreaseoftreatmenttime.

简介：Withpricesformetalresourcessuchasnickelandmolybdenumsoaring,thereisaheightenedsenseofcrisisconcerningresourcescarcity.WhileType304,themostcommonstainlesssteel,offersexcellentcorrosionresistance,itspriceisaffectedsignificantlybythecostofnickelbecauseofits8%nickelcontent.ThestainlesssteelthathasthesamecorrosionresistanceasthatofType304anddoesnotcontainnickelandmolybdenumhasbeenrequired.JFESteelCorporationhasdevelopedanew21%Cr-0.4%Custainlesssteel,theworld’sfirstferriticstainlesssteel,whichoffersequivalentcorrosionresistancetoType304whilecontainingabsolutelynonickelormolybdenum,tworaremetals.Thenewlydevelopedsteelcontains21%chromiumwiththeadditionof0.4%copper.Thedevelopmentofthesteelisbasedonanewdiscoverythatthepassivefilmsofstainlesssteelscouldbestrengthenedbythesynergyeffectofhighchromiumcontentandcopperaddition.Copperadditionenrichesthechromiumcontentinpassivefilmsafterfieldexposure.Newlydeveloped21%Cr-0.4%CustainlesssteelisadoptedformanyapplicationsasasubstitutionforType304,includingcommercialkitchenware,buildingmaterialsandindustrialmachinery.ThesteelisexpectedtobeanewstandardofaferriticstainlesssteelasasubstitutionforType304.

简介：Inthepresentstudy,thedrug-resistancegenesencodingβ-lactamases,aminoglycosidemodifyingenzymes,DNAtopoisomerasesandintegronaswellastheirmolecularepidemiologywereinvestigatedbymeansofanalyzingthedrug-resistanceandmolecularepidemiologyofAcinebacterbaumanniiisolatedfromtheclinicalsamplesintwohospitalsinQiangzhouandHuzhoucityofJiangsuandZhejiangprovincefromJuly2000toMarch2005.Theminimalinhibitoryconcentrations(MICs)ofthese307isolatesweredetectedbyautomaticmicrobiologicalsystem,and35strainsagainst5-fluoro-quinoloneswereperformedbyagardilutionassay.Meanwhile,theresistantgenesin80isolateswereamplifiedbyPCRwithidentificationbyDNAsequencer.Itwasfoundthatmostofthe307isolatesofA.baumanniiwereresistanttomultipleantibioticstested,inwhichtheresistanceratesoftheisolatesagainstpiperacillin,piperacillin/tazobactam,amoxacillin/clavulanicacid,cefotaxime,ceftazidime,cefepime,gentamicin,amikacin,ciprofloxacin,chloramphenicolandsulfamethoxazole/trimethoprimwereallabove35%,butthoseofimipenemandmeropenemwerequitelow,rangedonly2.6%and3.3%.Inaddition,itwasalsodemonstratedthatthepositiveratesofTEMandSHVβ-lactamasegenesaccountedfor93.8%and22.5%respectively,andthoseoftheaminoglycoside-modifyingenzymegenesincludingaacC1,aacC2,aacC3,aacC4,aacC4A,aphA6,ant(2')-Iandant(3')Iwere58.8%,8.8%,7.5%,28.8%,45.0%,2.5%,28.8%and65.0%respectively.Themutationsinthequinolone-resistantdeterminingregion(QRDR)ofgyrAandparCgenesindicatedthatsubstitutioninSer-83residueofGyrAproteinwasmostfrequentlyoccurredamongstrainswithMICforciprofloxacinofmorethan4μg/ml,whereasadoublemutationatSer-83residueofgyrAandSer-80ofparCwasfoundinstrainswithMICofciprofloxacinofmorethan8μg/ml.Astothepositiveratesofclass1integron(IntI-1)andqacE△1-sul-1,itwasfoundtobe60.0%and77.5%respectively

简介：Multidrug抵抗(MDR)是在癌症化疗的一个主要问题。MDR的最好已知的机制之一是ATP有约束力的盒子(ABC)的提高的表示运输ers。当人的ABC运输ers的一些成员被显示了与提高的表示引起抗药性时，另外的成员的在表示上是否能也在许多模型癌症房间线和诊所贡献抗药性，还没被知道。为介绍ABCtransporters的分析的表示的微数组和量的PCR数组的最近的开发帮助了处理这些问题。在这篇文章，有在在抗药性和chemo敏感预言识别ABCtransporter基因的ABCtransporter基因和他们的使用的有限或完整的表的各种各样的数组将被考察。

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简介：微弧的氧化(毛)/zinc硬脂酸盐(ZnSA)合成涂层经由毛与superhydrophobicZnSA的电极淀积处理并且随后的封上被制作。表面形态学，化学作文和涂层的腐蚀抵抗用扫描电子显微镜学的地排放被调查，Fourier变换红外线，X光检查衍射并且电气化学并且氢进化大小。结果显示毛涂层被下列superhydrophobicZnSA涂层高效地封上。MAO/ZnSA合成涂层显著地由于它的superhydrophobic功能提高了Mg合金Mg-4Li-1Ca的腐蚀抵抗。另外，腐蚀机制为合成涂层被建议并且讨论。

简介：到还原剂收益损失和减少杀虫剂使用的害虫抵抗的转基因的植物的采纳是成功的。达到控制在给定的转基因的植物咀嚼并且吸害虫的目标，我们产生了表示熔化蛋白质的转基因的烟草，Arabidopsis，和米饭植物，AaIT/GNA，在里面它杀虫的蝎子毒液神经毒素(Androctonus南极光毒素，AaIT)被熔化到雪花莲lectin(Galanthusnivalis凝集素，GNA)。与表示AaIT或GNA的转基因的烟草和Arabidopsis植物相比，表示展出的AaIT/GNA的转基因的植物增加了抵抗和毒性到一个咀嚼的害虫，棉花一种蛾的幼虫，Helicoverpaarmigera。表示AaIT/GNA的转基因的烟草和米饭植物显示出增加的抵抗和毒性到二个吸的害虫，whitefly，Bemisiatabaci，和米饭褐planthopper，Nilaparvatalugens分别地。而且在这块地里，当与N大批出没于时，表示AaIT/GNA的转基因的米饭植物在谷物产量展出了重要改进。lugens。这研究证明在转基因的植物表示AaIT/GNA熔化蛋白质能是为控制害虫的一条有用途径，特别地吸不产生在Bt的毒素的害虫收割。