简介：Twonewlybredhybridricecombinations,superhigh-yieldingLiangyoupeijiu(Pei'ai64S×9311)andPei'ai64S/E32(Pei'ai64S×E32)wereusedtoinvestigatethephotosyntheticcharacteristicsunderhightemperatureincomparisonwithhybridriceShangyou63.Hightemperaturecausedadecreasedphotosyntheticefficiencyandaggravatedphotoinhibition.TheoptimumtemperatureforphotosyntheticelectrontransportationandphotosyntheticCO2fixationwereabout28℃and35-40℃respectively.Linearelectrontransportationismoresensitivetohightemperaturethanthephotochemicalprocess.Themechanismofhightemperatureadaptationwaspossiblyasfollows:superhigh-yieldingricehasquicklyincreasingcarotenoid,whichactedasamorefavorableantioxidantsystemtoreducetheactiveoxygenproductionandavoiddamagetothephotosynthesissystem;superhigh-yieldingricehasahigherefficiencyofxanthophyllscycletodissipateexcessheatenergy;superhigh-yieldingricehasamorestablephotosyntheticfunction,higherphotosyntheticefficiencyandmoreheatstableproteincontent.

简介：ＦＲＯＭＷＯＭＥＮ＇ＳＭＯＵＮＴＡＩＮＰＲＯＤＵＣＴＩＯＮＢＲＩＧＡＤＥＳＴＯＷＯＭＥＮ＇ＳＴＲＥＥＦＡＲＭＳ￥ＢｙＸｉｅＪｉｎｇｘｉａｎｇＹｏｕｘｉｃｏｕｎｔｙｉｓｓｉｔｕａｔｅｄｉｎａｍｏｕｎｔａｉｎｏｕｓ，ｐｏｏｒｌｙｆｏｒｅｓｔｅｄｒｅｇｉｏ...

简介：ＤｉｓｃｕｓｓｉｏｎｏｆＸｉｘｉａ’ｓＦｏｒｅｓｔｒｙＡＭｏｄｅｌｆｏｒｔｈｅＤｅｖｅｌｏｐｍｅｎｔｏｆＣｈｉｎａ’ｓＴｏｗｎｓｈｉｐＦｏｒｅｓｔｒｙ￥ｂｙＸｕＧｕｏｚｈｅｎＰｏｖｅｒｔｙｉｓｓｔｉｌｌａｓｅｒｉｏｕｓｓｏｃｉａｌａｎｄｅｃｏｎｏｍｉ...

简介：Aseriesofnovel(S,S)-2,8-diazabicyclo[4.3.0]nonanecontainingbenzimidazolemoietywassynthesizedandtheirstructuresweredeterminedby1HNMRandHRMS.ThebiologicalactivityresultsshowedthatthesecompoundspossessedmoderateantifungalactivitytosomeplantpathogenousfungiandmoderateinsecticidalactivityagainstMythimnaseparataWalkerandCulexpipienspallens.Compounds6eand6fexhibitedgoodantibacterialactivityagainstSclerotiniasclerotiorum,PhytophthorainfestansandFusariumgraminearum.Thelethalityratesofcompounds6eand6kagainstMythimnaseparataWalkerwere100%at200mg/Landthelethalityratesofcompounds6hand6kagainstC.pippienspallenswere75%at2mg/L.

简介：

简介：ＷＯＭＥＮ’ＳＰＡＲＴＩＣＩＰＡＴＩＯＮＩＮＳＯＣＩＡＬＦＯＲＥＳＴＲＹＢｙＬｕｏＲｏｎｇｈｕａｉＬｕｏｓｈｕｉｉｓａｖｉｌｌａｇｅｉｎＮｉｎｇｌａｎｇＣｏｕｎｔｙｉｎＹｕｎｎａｎＰｒｏｖｉｎｃｅ．ＭｏｓｔｏｆｏｆｔｈｅＭｏｓｕｏｎａｔｉｏｎａｌｉｔ...

简介：文章介绍了Pro/E软件中的起始模板的的定制方法,结合制作实例,来讲述起始模板的定制方法,以及起始模板的调用过程。通过实例分析,起始模板的规范化设计对后续绘制工程图和装配图带来的方便性。

简介：<正>维生素是维持动物健康、促进生长发育所必需的一类低分子有机化合物,在体内不能由其它物质合成或合成量很少而不能满足正常的生理需求,因而必须不断由食物提供。如果长期摄入不够或利用不足,就会导致动物的物质和能量代谢障碍,从而出现生长不良、发育迟缓、抗病抗应激能力下降甚至死亡等缺乏症。集约化养殖条件下,营养充足而均衡的饲料是获得养殖成功的关键因素之一,而维生素在其中起着不可替代的作用。

简介：根据换热器膨胀节部位出现小沙眼，提出3种方案，并提出各个方案的优缺点，通过实践证明三种修补方法优化略胜，使壳程中介质硫磺阻止泄漏。

简介：该机由井关农机（常州）有限公司生产制造。该机操作简单,插植精确,作业效率高,根据农作物体系可以任意调节行距。单趟行驶可以插植2行,行距可以滑动调节,可适应各种各样种植作物的栽培体系。3600株/h的高效率作业,即使对于大规模种植的用户也能满足使用需求。主要技术参数：外形尺寸（长×宽×高）：2050mm×1500mm×1600mm

简介：Ｍａｎ－ＥＴｏｕｒｉｓｍＶｉｌｌａｇｅｏｆＤａｉＮａｔｉｏｎａｌｉｔｙＣｓｔｏｍｓｉｎＸｉｓｈｕａｎｇｂａｎｎａTXＭａｎ－ＥＴｏｕｒｉｓｍＶｉｌｌａｇｅｏｆＤａｉＮａｔｉｏｎａｌｉｔｙＣｕｓｔｏｍｓｉｎＸｉｓｈｕａｎｇｂａｎｎａＢｙＤｕａｎＱｉｗｕＸ...

简介：Forestryindustryisanimportantcommonwealandfundamentalindustry.Forestryenterprisestaketheburdenofecologicalconstructionandsupplyofforestproducts,andeconomicalbenefits,ecologicalbenefits,andsocialbenefitsaswell.However,electronic-business(e-business),asacompletelynewbusinessoperationmodel,willbringgreatopportunitiesandchallengestoforestryenterprises.Onthebasisofsimpleanalysisofe-businessconceptionmodel,theinternalandexternalenvironmentforforestryenterprisestodevelope-businesswasthoroughlyanalysedandresearched,andfinallyeffectivestrategicoptionswereproposed.

简介：利用函数S-粗集（functionsingularroughsets），提出了变异函数S-粗集，给出了变异函数S-粗集的数学结构和特性。变异函数S-粗集具有两类形式：单向变异函数S-粗集，双向变异函数S-粗集。

简介：Inrecentyears,thequantityandqualityofglobalforestresourcesaredecliningcontinually.Contrarily,thebothinChinaareincreasing,whichisdeeplyrelatedtothesustainableforestmanagementandeco-systemmanagementinChina.Withthetrendthatworldcommunityknowsmoreabouttheimportantroleofforest,moreandmorefunctionsofforestarerecognized.TheimpactandfunctionsofChina'sforestrydeservemoreconcern.Basedonsomeexperiencesinthefieldofforestryresearch,theauthors...

简介：

简介：维生素是雏鸭生长的重要营养之一,可分为水溶性维生素和脂溶性维生素两大类。脂溶性维生素有四种,有维生素A、维生素K、维生素D、维生素E。其中的维生素E（vitaminE）又名生育酚,也有四种衍生物,按甲基位置分为α、β、γ和δ四种,通常的人工合成品多以α体的活性为最强,是主要产品。

简介：维生素E是维持动物正常生理机能所必不可少的有机化合物．它具有极高的生物活性．在提高动物机体免疫力、预防不孕症、促进生长等方面发挥着重要的作用。养猪生产中如果能够加以合理利用．将会有效降低生产成本，显著提高经济效益。

简介：Sulfurtransformationin3soilsmaintainedinaclosedincubationsystemanditsavailabilitytoplantswereinvestigatedusingcarrier-free^35S-SO4^2-and^35S-labeledryegrassstraw.Forcarrier-freeNa2^35SO4treatment,78%,70%and64%of^35SappliedwerefoundinCa(H2PO4)2-extractaleSfraction,4%,5%and7%inslowlysolubleinorganicS,11%,15%and18%inC-O-S,5%,7%,and6%inC-bondedS,and5%,7%and6%inunidentifiedorganicS120daysafterincubationinblacksoil,cinnamonsoilandchestnutsoil,respectively.Mostof35Suptakebyplantscamefromextractable35SO4^2-,andlittlefromC-O-^35SandC-bonded^35S,Inthetreatmentwith35S-labeledstraw,51%,46%and36%of35SincorporatedwerefoundinCa(H2PO4)2-extractableSfraction,7%,6%and7%inslowlysolubleinorganicS,13%,15%and18%inC-O-S,8%,8%and6%inC-bondedS,and18%,25%and35%inunidentifiedorganicSattheendofincubationinabove-mentonedthreesoils,respectively.HigheravailabilityofC-O-35S,C-bonded35Sandunidentifiedorganic35Sfrom35S-labeledstrawwasobservedin35S-labeledstrawtreatmentcomparedtocarrier-freeNa2^35SO4treatment.

简介：Forestshavemultiplebenefitsandfunctions,includingmitigationofclimatechange.Theimpactsofforestsontheglobalcarboncycleincludeforestsascarbonsinks,wood-basedproductsascarbonsinks,bio-energy,andproductionanduseofnon-timberproducts.Inthepastdecades,forestcoverofChinahasincreasedfrom8.6%to18.21%bylarge-scaleafforestationandconversionofcroplandintoforests.Forestbiomasscarbon(C)stockincreasedfrom4.3PgC(1PgC=1015gC)intheearly1980sto5...

简介：前一时期盛行的现场“5S”管理，即整理、整顿、清扫、清洁、素养；营销“5S”只是笔者的引申义，可理解为“整理、整顿、协调、维护、卓越”。营销“5S”管理包括市场5S管理、客户5S管理、产品5S管理、营销代表5S管理。