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简介：Thepatternofprecipitation,includingprecipitationamount,frequencyandintensity,maychangeinthefutureaccordingtothepredictionofclimatechange.Inaridzones,thesoildynamics,plantgrowthandvegetationchange,desertificationandhydrologymightbeaffectedbyprecipitationchange.Ingeneral,theprecipitationinextremearidzoneandaridzoneshowedanincreasetendencywhereastheprecipitationinsomeareainsemi-aridzoneandsub-humidaridzoneshowedadecreasetendency.Theincreaseofprecipitationcouldenhancethegrowthofbiologicalsoilcrust,improvesoilwaterstatus,promoteplantgrowth,increasevegetationcoverage,facilitatethechangefromdesertvegetationtograsslandvegetation,anditisbenefittothereversionoflanddesertification.Inaddition,theincreaseofprecipitationcouldalsoincreasetheriverrunoff,lakestorageandpromotetheoccurrenceofflood,whilethedecreaseofprecipitationhastheadverseeffect.Thesestudieswillbenefitthepredictionofthepossibleresponseofecosystemprocessestothepotentialchangeofprecipitationpatterninaridzonesinthefuture,anditisimportanttotheconservationofnaturalvegetationandthecontrolofdesertification.Morefieldexperimentsandstudiesshouldbeconductedinthefuture,includingtheeffectofincreasedprecipitationortemperature,nitrogendepositionandCO2onsoil,vegetation,desertificationandhydrologyofaridzones,soasthemorepersuasiveresultscouldbeobtainedfromtheseexperimentsandstudies.

简介：Themainfailuremodesoftubingandcasingincurrentserviceconditionsarerepresentedinthisstudy.Theprogressofthetubingandcasingapplicationtechnologyandtheproblemsthatshouldbefocusedonduringapplicationareintroduced,withspecialattentionpaidtothereliabilityofthepipestringdesignandtheconnectionsealingproperties.Thenecessaryworkthatshouldbeundertakeninfutureresearchisalsosummarized.

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简介：Theprogressofperformancedynamicevaluationtheoryformutualfundfromdifferentpointsissummarized.Thetheoriesincludeconditionalperformanceevaluationmodel,stochasticdiscountfactorsmodel,dynamicselectingandtimingability,portfoliochangemeasureandsoon.Meanwhile,thispaperalsosummarizedtheprogressofPerformancePersistenceandSurvlvorshlpBias.Thentheanalysisofthedevelopmenttendencyfortheperformanceevaluationofportfolioismade.

简介：DigitaldecayspectroscopyofactinideisotopesatthegasfilledseparatorSHANSAlloverthechartofnuclides,theregiontothe“north-east”of208Pb,withZ≥84andN=128~130,hoststheshortest-livedαradioactivities,withhalf-livesintherangeofnanosecondstomicroseconds.Synthesisanddetectionofneutron-deficientisotopesabovethoriuminthisregionarechallengingduetotheirlowproductioncrosssectionsandshorthalf-lives.

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简介：SINOPECYangziPetrochemicalResearchInstitute(YPRI)incollaborationwithEastChinaUniversityofScienceandTechnologyandtheOlefinPlantofYangziPetrochemicalCompanyhasconductedprocessoptimizationcalculations

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简介：AbstractDecidualization is a special type of differentiation of endometrial stromal cells into secretory decidualized cells, which is closely related to the occurrence of menstruation and establishment of pregnancy. Decidualization abnormalities can cause female infertility and abortion, and the decidualization model in vitro is an important tool for studying relevant mechanisms. This article summarizes several in vitro decidualization models in recent research from three aspects, including the selection of model cells and culture systems, evaluation of decidualization markers, and induction schemes. These models can be appropriately selected and applied in specific endometrium-related disease models, such as endometriosis, recurrent pregnancy loss, and preeclampsia.

简介：Someoftheprogressmadeinourlaboratoriesincollaborationwithindustryinresearchanddevelopmentworkonhighperformanceoxide-nonoxidecompositesformetallurgicalapplicationshasbeenreviewed.(1)SiAlONbondedcorundumcompositesforblastfurnaceusagehavebeenproducedbyreduction-nitridationsinteringathightemperature,usingbauxiteinsteadofaluminainthematrix.(2)LowcarbonAl2O3-SiAlONslideplatematerialssuccessfullyusedinhighqualitysteelcontinuouscastinghavebeendevelopedinwhichmostorallofthegraphiteinAl2O3-Cbrickisreplacedbybauxite-basedβ-SiAlON.(3)Al/SimetalbondedAl2O3-Cmaterialcharacterizedbylowcarboncontent,lowfiringtemperatureandin-situformationofcarbidesandnitridesathightemperatureduringservicearefoundtopossessveryhighhotstrengthandverygoodthermalshockresistanceandhavealsobeensuccessfullyusedasslideplatesinladlesandtundishesforhighqualitysteelcasting.

简介：1SignificanceofAllSolidStateLaser(DPL)TechnologyinFieldofLaserBecauseoftheadvantagesofhighconversionefficiency,goodbeamquality,smallsizeandlightweight,DPLbecomesthehotspotandpriorityofdevelopmentoflasertechnology.Itmaybethemainbodyoflaserinthefutureandreplacegaslaserandliquidlaser.Itisagreatrevolutionoflasertechnology.ThedevelopedcountriesvieindevelopingDPL.Chinahasachievedgreatsuccessinthisfield,butthereisawidegapbetweenthedevelopedcountriesandus.Weshouldattachgreatimportancetoit.

简介：AbstractBone cement, consisting of polymethyl methacrylate, is a bioinert material used for prothesis fixation in joint arthroplasty. To treat orthopedic infections, such as periprosthetic joint infection, antibiotic-loaded bone cement (ALBC) was introduced into clinical practice. Recent studies have revealed the limitations of the antibacterial effect of ALBC. Moreover, with the increase in high infection risk patients and highly resistant microbes, more researches and modification of ALBC are required. This paper reviewed latest findings about ALBC for most popular and destructive pathogens, summarized the influence of antibiotic kind, drug dosage, application method, and environment towards characteristic of ALBC. Subsequently, new cement additives and clinical applications of ALBC in joint arthroplasty were also discussed.

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简介：In2016,thepowersupplyinCSRmwasdigitalizedtofurtherimprovethereliabilityofoperation.Anewvectorrecticationtechniqueisdevelopedfortheresearchofadvancedpowersupplyandelectricalrelatedtechnologies.AnumberofEMCandelectricalsafetytestingitemsforHIMMWuweipowersupplieshasbeencompleted.DigitalizationupgradeofthepowersupplyCSRmpowersupply,including30setsquadrupolemagnetpowersupply,6setssextupolemagnetpowersupplyand8setsbipolarcorrectmagnetpowersupply,weretransformedbyusingofdigitalcontrollersbasedonFPGA.Fig.1displaysthemeasurementresultsofthenewdigitalpowersupplyofquadrupolemagnet,thecurrenterror(attop)was1.7610?5,thetrackinger-rorwas5.2810?5.Theperformanceandreliabilityofthepowersupplyhavebeengreatlyimproved.

简介：与spintronics的发展，在二维的材料的氧的行为上的调查从来没停止过。由于它的活泼的性质，氧是难的在系统独自存在。然而，它将与另外的原子交往并且生产复杂轨道的杂交效果，它影响了材料的表演。特别为在nanoscale的材料，介绍氧原子是不可避免的，不管什么在准备的过程或采用。因此，在二维的薄电影关于氧行为的效果继续研究是必要的。在这篇论文，它将主要在磁性，电的性质，阶段转变，纺纱依赖者性质和热稳定性上介绍氧行为的效果，总结影响氧行为的几个因素，并且概括在氧行为后面的机制的研究进步。

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简介：Fabry-Perot共鸣器(FPR)天线在微波和毫米波浪发现了宽应用并且最近吸引了可观的兴趣。在这篇论文，平面、圆柱的结构的一篇摘要，分析模型和研究，开发被介绍，并且在这些结构之间的比较和分析模型被做显示出那象FP洞模式的如此的分析模型，电磁的乐队差距(EBG)缺点模式，传播线模式，并且当适用分析这类共鸣器天线时，漏波浪的模式是一致的。在最近的研究下面的一些有趣的话题，包括双或多乐队，获得带宽的改进，低侧面和横梁控制，被调查。