简介:Overthepast10years,China'ssteelindustryhasmadeasubstantialdevelopmentintermsofscale,andhasfinallybecomeasteelgiantintheworld.Intheupcoming10years,fundamentalchangeswillbemadewiththeeconomicgrowthinChina.Againstthisbackground,China'ssteelindustrywillshiftfromarapiddevelopmenttoaslowbutsounddevelopment.InordertofulfillthesecondleapofChina'ssteelindustry,basedonitscurrentdevelopingstatusandcharacteristics,andfromtheperspectiveofbothnationalandcorporatedevelopment,mergersandacquisitionarebotheffectivewaystoraisethequalityoftheexistingstockofassetinthesteelindustry,whiletechnologicalinnovationisthesolidfoundationforitssecondleap.
简介:Anon-linecontrolmethodofsurfacequalityforcontinuoushot-dipgalvanizedsteelstripaftercoolingispresented,whichcombinesanalyticaldynamicstheoryofathinplatewiththefiniteelementmethod.Theinherentcharacteristicsofthenon-immersedandpartiallyimmersedstripinliquidzincwerecalculatedonthebasisoftheoreticalanalysisandnumericalsimulation,respectively.Multi-parameterfittingofthedeviationbetweenresultsusingdifferentmethodswasperformed.Tooptimizethestripexcitationfrequencyawayfromtheresonanceregion,on-linevibrationcontrolofthestripneartheairknifeunderfullproductconditionswasachievedbychangingthefieldproductionparametersbasedonthefieldtestresults.Theresultsindicatethatalthoughtheaxialvelocityhaslittleeffectontheinherentcharacteristicsofthestripcomparedwithothermanufacturingparameterssuchasthesteelspecificationsandtension,itinducesexternalexcitations,includingmovingtheaerodynamicloadandbearingvibration.Tosomedegree,thevibrationneartheairknifecanbereducedbystrengtheningthesupportstiffnessofthecontactrolls.Atotalon-linecontrolprogramofsurfacequalityforcontinuoushot-dipgalvanizedpureZnandgalvannealedsteelsheetinthecoolingsectionisproposed.
简介:ToanalyzeChina'sfluctuatingsituationofthefactorinputandaggregativeproductivityisnotonlythemainmethodtoseekthesourceoftheeconomicgrowthbutalsothemainwaytoweighthelevelofeconomicgrowthquality.Astoeconomicgrowthofacountry,theimprovementoftheproductivityisextremelyimportant.Thegrowthoftheoutputcanberealizedthroughtwokindsofways:increasingthequantityoffactorinputoforimprovingtheeffciencyoftheinputandoutput.Therefore,thelevelofeconomicgrowthquafitydoesnotmainlydependontheamountofinvesTedfactor,buttheimportanceofimprovingtheprodutivitysincePesourcesarerare.Therelativeimprovementofefficiencyinuseoftheinvestedfactormarkstheeconomicgrowingquality.So,inordertounderstandtheeconomicgrowthquafityofChinatosomeextent,itmustanalyzeChinesefactorinputandaggregativeproductivity.Thisisthemaintopicthatthistextwiltbeprobedinto.
简介:Electro-hydraulicimpulsewater-airmixingjetbywhichthequalityofmetalmaterialscanbeimprovedisdescribedinthispaper.Theexperimentalresultsprovedthatthehardnessandthemicro-hardnessofthesurfacelayerofmetalmaterialscanbeimprovedwiththismethod,forexample,themicrohardnessofCrWMncanbeincreasedby35.62percent.
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简介:1.6公里厚的表的非合金的钛的变硬的激光转变(LTH),更近,到ASTM,等级3化学作文用2kWCWNd被调查:钇铝柘榴石激光。激光力量的效果(750-1250W),扫描速度(10003000mm/min)和焦点的点位置(从?10到?30公里)在热输入,和变硬祷告的几何学上(即变硬的祷告宽度(HBW),变硬的深度(HD)和变硬的祷告的入口的角度与表面(AEHB)介绍)用反应表面方法论(RSM)被调查。试验性的计划基于Box-Behnken设计矩阵方法。为预言热输入和变硬的祷告几何学的线性、二次的多项式方程被开发。结果显示建议模型在变硬的参数的限制以内足够地预言回答被使用。回归方程能被用来为需要的标准发现最佳变硬条件,这被建议。
简介:AbstractBackgroundIt remains unclear about the association of muscle mass, strength, and quality with death in the general Chinese population of diverse economical and geographical backgrounds. The present study aimed to comprehensively examine such associations across different regions in China.MethodsBased on the China Kadoorie Biobank study, the present study included 23,290 participants who were aged 38 to 88 years and had no prevalent cardiovascular diseases or cancer. Muscle mass and grip strength were measured using calibrated instruments. Arm muscle quality was defined as the ratio of grip strength to arm muscle mass. Low muscle mass, grip strength, and arm muscle quality were defined as the sex-specific lowest quintiles of muscle mass index, grip strength, and arm muscle quality, respectively. Cox proportional hazards models yielded hazard ratios (HRs) and 95% confidence intervals (CIs) for risks of all-cause mortality in relation to muscle mass, strength, and quality.ResultsDuring a median follow-up of 3.98 years, 739 participants died. The HR (95% CI) of all-cause mortality risk was 1.28 (1.08-1.51) for low appendicular muscle mass index, 1.38 (1.16-1.62) for low total muscle mass index, 1.68 (1.41-2.00) for low grip strength, and 1.41 (1.20-1.66) for low arm muscle quality in models adjusted for sociodemographic characteristics, lifestyle factors, and medical histories.ConclusionLow muscle mass, grip strength, and arm muscle quality are all associated with short-term increased risks of mortality, indicating the importance of maintaining normal muscle mass, strength, and quality for general Chinese adults.
简介:Systemdynamics(SD)theoryhaslongbeendeployedinmodelingcomplexnon-linearinterrelationshipsbut,sofarithasnotbeencommontodothekindofmodelinginsupportofbringingenvironmentalsustainabilitypoliciestopractice.Thisislargelybecausethechallengeofincludingspatialdatahasnotyetbeenwellmet.PotentialforadoptionofSDandGISmethodsincombinationisexemplifiedwiththeresultsofadecision-supportexercisedesignedforsimulationandpredictionofthedynamicinter-relationshipsbetweensocio-economicdevelopmentandenvironmentalqualityforthe"Wen,Pi,Du"countyinSichuanprovince,southwesternChina.
简介:Theearningsqualityoflistedcompaniesisanissueofpublicconcern.Thispaperconductsanin-depthandcomprehensiveanalysisofhowtomeasuretheearningsqualityoflistedcompaniesbyusingempiricalmethods.Theindicatorsofearningsqualityusedinthispaperincludenotonlycashflowbutalsoindicatorsthataffectthegrowthoffutureearnings.Wefindthat,firstly,inourstockreturnregressions,bothspecificandcompositeindicatorsofearningsqualityhaveincrementalexplanatorypowerforstockreturnsaftercontrollingforearningspershare,changesinearningspershare,andfirmsize.Secondly,inourfutureearningsregressions,bothspecificandcompositeindicatorsofearningsqualityhaveincrementalexplanatorypowerforfutureearningsaftercontrollingforearningspershare,changesinearningspershare,andfirmsize.Thirdly,listedcompanieswithlower(higher)earningsqualityhavepoorer(better)earningsperformanceinfutureyears.
简介:长期的前列腺炎能影响精子质量。以前的研究证明了transrectal微波thermotherapy(TRMT)在精子上与长期的前列腺炎,而是效果在病人导致征兆的地势小心地没被调查。当过去常与长期的nonbacterial前列腺炎对待病人时,这研究在症状的消除和精子的质量上评估TRMT的影响。六十个病人在学习被注册。TRMT治疗在5天被管理,1h每天。精液检查被执行预告的处理并且立即在5天的治疗的结论。另外,它被重复1个月,3个月,和6个月以后。治疗症状消除功效用健康长期的前列腺炎症状索引(NIH-CPSI)的国家研究所被评估。在治疗以后,全面NIH-CPSI分数与预告的处理的那些相比是更低的。另外,在表示prostatic分泌物的白血房间和卵磷脂在治疗以后是正常的。精子计数在治疗以后到23.8%3个月被减少,精子活动性被10.3%在治疗以后立即减少,并且精子畸形被17.2%增加。精子体积和PH没被影响。然而,在治疗和畸形性率在在治疗以后的6个月也是更低的以后,精子质量恢复了。TRMT是为有nonbacterial的病人的一种有利、安全的治疗选择长期的前列腺炎。它能在精子质量上减轻病人症状和影响在短期。
简介:Thestrategyofsequentiallyspin-coatingaperovskitefilmfromtheperovskiteprecursorandanelectrontransportinglayerof[6,6]-phenyl-C71-butyricacidmethylester(PC71BM)isdevelopedtosimplifythefabricationprocedureofperovskitesolarcells.X-raydiffractionandscanningelectronmicroscopyindicatethatPC71BMfilmonperovskitelayercanretardtheevaporationofdimethylsulfoxide(DMSO)efficiently,thusprolongingthetransformationofintermediatephasetoperovskitecrystals,leadingtoahighqualityperovskitethinfilm.Thesolarcellswiththestructureofindiumtinoxides(ITO)/poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)(PEDOT:PSS)/CH3NH3PbI3/PC71BM/bathocuproine(BCP)/Agmadefromthissimplifiedmethodexhibitahigherefficiency(12.68%)thanthosefromtheconventionalone-stepmethod(9.49%).
简介:Weinvestigatedtheeffectofthereplacementofdietaryfishoilwithvegetableoilsonthegrowthandfleshqualityoflargeyellowcroaker(Larmichthyscrocea).Thebasaldiet(FO)wasformulatedtocontain66.5%fishmealand6.4%menhadenfishoil;whereastheother3experimentaldietswereformulatedbyreplacingthefishoilwith50%soybeanoil(SO50),100%soybeanoil(SO100)and100%palmoil(PO100),respectively.The4dietswererandomlyassignedto4floatingseacages(3.0m×3.0m×3.0m),andeachwasstockedwith250fishindividualswithaninitialaverageweightof245.29g±7.45g.Thefishwerefedtoapparentsatiationtwiceadayat5:00and17:00,respectively,for12weeks.ExperimentalanalysisshowedthatthespecificgrowthrateoffishfedSO50orPO100weresignificantlyhigherthanthatoffishfedFOorSO100(P<0.05),andcrudelipidcontentsofventralmuscleandvisceraweresignificantlylowerinfishfedFOthaninthosefedtheother3diets(P<0.05).Nosignificantdifferencesinconditionfactor,viscerosomaticindex,hepatosomaticindex,guttedyieldandcolorimetricvaluesoffishamongthedietarytreatmentswereobserved(P>0.05).ComparedtoFOdiet,SO50,SO100andPO100dietsledtosubstantialdecreasesintheliquidlossandwaterlossfromfreshfillets(1d,4℃)(P<0.05).Similarly,thiobarbituricacidreactivesubstance(TBARS)valuesoffilletsunderdifferentstorageconditions(1d,4℃;7d,4℃;4weeks,-20℃;8weeks,-20℃)decreasedsignificantlyafterpartialorcompletereplacementoffishoilwithvegetableoils.Thesefindingsindicatedthatthegrowthperformanceandselectedfleshqualityproperties(liquidholdingcapacityandTBARSvalue)oflargeyellowcroakerweresubstantiallyimprovedbyreplacingdietaryfishoilwithvegetableoils.
简介:三的大楼塞满水坝(湖北()省,中国)在一特别短的时间以内基于持续农业与经济把一个区域转变几千年了成完全不同的环境。这破坏碳,营养素,和金属并且可能的自然biogeochemical周期将包括下游的生态系统影响整个集水,例如沼泽地,河口,三角洲,和邻近的海区域。从已经被记录了的变化开始,这篇文章专注于FerryBox的可能的使用,它是在一艘轮船上或在岸上的一个自动化水质量测量系统,为了监视河的质量的短、长期的发展,水坝在回水区域并且下游地流水。当已经有时,研究规划运行监视河和回水区域的水质量,这些程序被限制与采样和实验室分析装运运动。如此的大小的空间、时间的分辨率不为对水质量的一个全面评价并且为在上下文的预测是足够的人为并且气候变化。因此,由FerryBox使用常规自动化观察的一个概念被介绍。如此的系统很好被适合给反馈让对措施的评价改进水质量,这被显示出。
简介:到有冷忍耐的无热水设备灌溉和它的关联的谷物质量特点的反应从云南省在11个装饰用的梨树米饭变化被学习,中国。结果显示到无热水设备压力的谷物质量特点的反应与米饭变化和谷物质量特点变化了。在无热水设备压力下面,,谷物宽度,白垩的米饭率,白色,1000谷物重量,稻谷率,味道米价值,山峰粘性,马槽粘性,故障粘性和最后的粘性显著地减少了谷物长度宽度比率,头米饭率,碱消化价值,蛋白质内容和挫折粘性显著地增加了。然而,象谷物长度,直链淀粉内容,milled米饭率,山峰粘性时间和粘贴的温度那样的另外的特点没被无热水设备压力显著地影响。重要关联在phenotypic可接受程度和味道米价值,蛋白质内容,山峰粘性和故障粘性的冷反应索引之间被发现。因此,改进云南米饭变化的冷忍耐以便稳定并且改善他们的吃的质量将是很重要的。
简介:A100-J-levelNd:glasslasersysteminnanosecond-scalepulsewidthhasbeenconstructedtoperformasastandardsourceofhigh-fluence-laserscienceexperiments.Thelasersystem,operatingwithtypicalpulsedurationsof3–5nsandbeamdiameter60mm,employsasequenceofsuccessiverodamplifierstoachieve100-J-levelenergyat1053nmat3ns.Thefrequencyconversioncanprovideenergyof50-Jlevelat351nm.Inadditiontothehighstabilityoftheenergyoutput,themostvaluableofthelasersystemisthehighspatiotemporalbeamqualityoftheoutput,whichcontainstheuniformsquarepulsewaveform,theuniformflat-topspatialfluencedistributionandtheuniformflat-topwavefront.