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.

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简介：ＷＯＭＥＮ’ＳＰＡＲＴＩＣＩＰＡＴＩＯＮＩＮＳＯＣＩＡＬＦＯＲＥＳＴＲＹＢｙＬｕｏＲｏｎｇｈｕａｉＬｕｏｓｈｕｉｉｓａｖｉｌｌａｇｅｉｎＮｉｎｇｌａｎｇＣｏｕｎｔｙｉｎＹｕｎｎａｎＰｒｏｖｉｎｃｅ．ＭｏｓｔｏｆｏｆｔｈｅＭｏｓｕｏｎａｔｉｏｎａｌｉｔ...

简介：1955年10月,由毛泽东主席亲自确定厂址的中国第一台拖拉机的诞生地第一拖拉机制造厂在洛阳举行开工典礼。中国农机工业从此实现了零的突破,进入一个从无到有的新阶段。＂东方红＂作为中国一拖的主导品牌,它不仅仅是一个商标,更是一种精神和文化的象征,它和《东方红》歌曲一样,凝聚着中国人民的浓厚情感。中国一拖是我国机械工业发展的生动缩影。

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...

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简介：郊野公园是对北京市第一道绿化隔离带绿地进行近自然化、公园化改造而成的。北京市第一道绿化隔离带现有绿地116km^2，目前已形成29个郊野公园。按照郊野公园环建设计划。到2008年力争再建30个。届时沿四环五环之间将形成约60个郊野公园，平均每隔3km一处，实现郊野公园绕京城。据悉，公园建成后将完全免费开放。

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。

简介：Asanemergingindustry,China'swoodfloorindustrydatesbacktotheearly1980s.Despitealatestart,ithasdevelopedrapidlyduringthelast20years.ThepastdecadeshavewitnessedgreatchangesinChina'swoodfloorindustry.Withhighquality,manyproducts"madeinChina"areavailablewidelyabroadnowadays.Currentglobaleconomicshocks,however,affectChina'sdomesticrealestatesector;hencethefallingdomesticsalesofwoodfloor.Thepaperaimstoidentifythecurrentsituationoffloorindustry...

简介：碧浪5HSG-60谷物干燥机由中机南方机械股份有限公司生产制造,为低温循环式谷物干燥机机型,由供热装置、粮温自动控制装置和主机三大部分组成。主机结构包括干燥箱、定时排粮机构、输送搅龙、提升器、卸粮装置、吸引风机、清粮机构和传动机构等。

简介：该机由山东华盛中天机械集团有限公司生产制造。主要技术参数如下。

简介：Urbangreening,urbanforestryandurbangreenstructureplanningalllookatacityasaunitandintendtoimprovethestatusofgreenspaceinthecity.Eventhoughtheyarenewterms,theirconceptshaveevolvedoveraratherlongperiod.Thispaperpresentsahistoricalreviewofwesternconceptsforurbangreeningsincethe1850s.Thefirstaimistoestablishanoverviewofhowtheurbangreeningconcepthasdevelopedandwhattherelationshipsarebetweenthehistoricalconceptsandurbangreening,urbanforestryandurbangreenstructureplanningtoday.Thesecondarypurposeistounderstandsomekeyissuesforurbangreeningthroughtheexaminationofhistoricalprecedents.Basedonaliteraturereview,thepaperpresentsseveralhistoricalconceptsforurbangreening-rampartareaplanning,parksystem,greenbelts,greenwedgesandgreenways.Thenewconceptofurbangreenstructureisalsointroduced.Eachconceptisdefined.Thesocialbackgroundandtheinfluenceoncitydevelopmentaredescribed.Thereviewshowsthattheconceptofurbangreeninghasalonghistory,parallelwiththedevelopmentofthecityplanningconcepts.Thescopeofurbangreeninghasbecomelargeroverthepastyears.Thefunctionsofurbangreenspacehavechangedfromsingle-purposetomulti-purpose.Thestudyindicatesthathistoricalconceptsmaystillgiveinspirationintoday'surbangreeningprocess.

简介：SulfatecanbeactivatedbyATPsulfurylaseandadenosine5-phosphosulfatekinase(APSK)invivo.RecentstudiessuggestedthatAPSKinArabidopsisthalianaregulatedthepartitionbetweenAPSreductionandphosphorylationanditsactivitycanbemodulatedbycellularredoxstatus.InordertostudyregulationofAPSKinrice(OsAPSK),OsAPSKIgenewasclonedanditsactivitywasanalyzed.OsAPSKIC36andC69werefoundtobetheconservedcounterpartsofC86andC119,whichinvolvedindisulfideformationinAtAPSK.C36A/C69AOsAPSK1doublemutationwasmadebysitedirectedmutagenesis.OsAPSKanditsmutantwereprokaryoticallyover-expressedandpurified,andthenassayedforAPSphosphorylationactivity.OsAPSK1activitywasdepressedbyoxidizedglutathione,whiletheactivityofitsmutantwasnot.Furtherstudiesinthecasethatoxidativestresswillfluctuateinvivo3'-phosphoadenosine-5'-phosphosulfatecontent,andallAPSKisoenzymeshavesimilarregulationpatternsarenecessarytobeperformed.

简介：Man-madeforest,whichistheforestecosystemofrehabilitationandreconstruction,playsasignificantroleintheprovisionofforestproductsandimprovementtheecologicalenvironment.Inthispaper,weestablishedtheAR(5)modeltopredictChina'sforestareafrom2009to2015.Thisstudyshowstheslowgrowthofthenationalplantationareatrendwithsomefluctuations,buttheoverallgrowthrateisnotlarge.WeproposedthatononehandChinashouldcontinuetoincreasetheplantationarea,ont...

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