简介：BioscienceMethods(ISSN1925-1920)isanopenaccess,peerreviewedjournalpublishedonlinebyBioPublisher.Thejournalpublishesallthelatestandoutstandingresearcharticles,lettersandreviewsinallareasofbioscience,therangeoftopicsincluding(butarenotlimitedto)technologyreview,techniqueknow-how,labtool,statisticalsoftwareandknown

简介：BioscienceMethods(ISSN1925-1920)isanopenaccess,peerreviewedjournalpublishedonlinebyBioPublisher.Thejournalpublishesallthelatestandoutstandingresearcharticles,lettersandreviewsinallareasofbioscience,therangeoftopicsincluding(butarenotlimitedto)technologyreview,techniqueknow-how,labtool,statisticalsoftwareandknown

简介：BioscienceMethods(ISSN1925-1920)isanopenaccess,peerreviewedjournalpublishedonlinebyBioPublisher.Thejournalpublishesallthelatestandoutstandingresearcharticles,lettersandreviewsinallareasofbioscience,therangeoftopicsincluding(butarenotlimitedto)technologyreview,techniqueknow-how,labtool,statisticalsoftwareandknowntechnologymodification.Casestudiesontechnologiesforgenediscoveryandfunction

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简介：土壤体积密度的测量为理解土壤的物理、化学、生物的性质是重要的。精确、快速的土壤体积密度测量技术在农业试验性的研究起一个重要作用。这评论是存在测量方法的一篇全面摘要并且为未来开发评估他们的优点，劣势，错误的潜在的来源，和方向。这些技术能广泛地作为直接、间接的方法被分类。直接方法包括核心，土块，和挖掘采样，而间接方法包括放射和回归途径。核心方法最广泛地被使用，但是为采样使用多重土壤深度耗时、困难。coring柱体的尺寸使用了，操作员经验，采样深度，并且在原处显著地玷污潮湿内容影响它的精确性。土块方法是合适的因为有重黏土的使用，和它的精确性依赖于设备刻度，弄干时间，和操作员经验，但是这个过程复杂、耗时。挖掘技术最通常被用来评估森林土壤的体积密度，但是把他们不能与大毛孔在土壤被使用，他们的测量精确性被土壤质地和分析的类型强烈影响的主要限制选择。间接方法看起来比直接途径有更大的精确性，但是有更高的费用，是更复杂的，并且要求更大的操作员经验。一如此的途径使用gamma放射，和它的精确性被土壤深度强烈影响。当他们能做间接大小，回归方法是节俭的，但是这些取决于土壤质地和有机物内容和地理、气候的性质的好、优秀数据。另外，它的精确性象大多数另外的途径一样，与采样深度减少。

简介：Plantationpoplarisoneofthemostimportantresourcesforwoodindustry,itsutilizationfieldisvast.ThewettabilityofPopulustomentosawithdifferentdryingmethodswasjudgedbymeasurementofcontactangleusingdistilledwaterinthispaper.Theresultsshowedthatthespecimensfromconventionaldryinghavethebiggestcontactangle,andtheairdriedhavethesmallestcontactangle,airdriedlumbershaveabetterwettabilitythanthekilndried.Thechangesofcontactangleinaperiodoftim...

简介：Thispaperdevotedtofindingprocessingmethodsofalkalinehydrolysateproducedfromricehuskpre-extraction,anddiscussesalkalinehydrolysateprocessingschemedanddisengagementofsomeproducts:amorphoussilicaofvariousquality,alkalinelignin,andwaterandalkalineextractionpolysaccharides.Silicasampleswerecharacterized:crude(air-dried),burnt(nopreliminarywatertreatment),washedindistilledwater,andwashedindistilledwaterandburnt.Wastewaterparametersupontheextractionofsolidsfromalkalinehydrolysatedroppedafewdozensorthousandtimesdependingontheappliedprocessingmethod.Colordecreasedafewthousandtimes,turbiditywasvirtuallyeliminated,chemicaloxygendemandedabout20–136times;polyphenolscontentmightdecrease50%orbevirtuallyeliminated.Themostprospectiveschemeobtainedthetwofollowingsolidproductsfromricehuskalkalinehydrolysate:amorphoussilicaandalkalineextractionpolysaccharide.Chemicaloxygendemandoftheremainingwastewaterdecreasedabout140timescomparedtothesilica-freesolution.

简介：本标准适用于收购的生鲜牛乳的检验和评级。1定义1.1收购的生鲜牛乳:收购的生鲜牛乳系指从正常饲养的、无传染病和乳房炎的健康母牛乳房内

简介：Structuralfinger-jointed(FJ)lumberwasusedmainlyinstructuralapplicationsincludingglue-laminatedbeamsandwoodenI-joistsandmorerecentlyinparallelchordwoodtrusses.ThepaperevaluatedstrengthpropertiesofstructuralFJlumberbythreenondestructivemethods(edge-wisebending,longitudinalandtransversalvibration)inordertofindanalternativetotraditionalevaluationmethods.LumberwassawnfromthelogsfollowingapatterntypicallyusedinChinatomaximizethevolumeofrecover...

简介：节省水的灌溉方法逐渐地在温室或塑料电影房子为蔬菜耕作被使用了。然而，有关土壤磷(P)行为上的节省水的灌溉方法的效果有有限信息。在这个实验，滴下并且表面下的灌溉方法被使用，与是的沟灌溉方法控制，在MollicGleysols。在整个深度的土壤P分发被灌溉方法显著地影响。全部，Olsen，器官、无机的P内容比在心土(20–30，30–40，40–50和50–60厘米)在表层土(0–10和10–20厘米)是更大的。在整个0–60厘米层在下面的OlsenP内容滴下并且表面下的灌溉处理在沟灌溉处理下面是比那低的。然而，全部、器官、无机的P从20～60厘米满足在下面滴灌溉处理比或近到在沟灌溉处理下面的那些高，但是比在沟灌溉处理下面在表面下的灌溉处理下面是更低的。在表面下的灌溉处理下面，在0–10厘米层的全部、器官、无机的P的内容是78.0%，1.3%和3.7%比那些大在10–20厘米层分别地。但是在10–20厘米层的OlsenP内容是5.7%比那大在0–10厘米层。这些建议那土壤P行为能被土壤水管理操作到某程度。

简介：Potassiumchloride,Na-pyrophosphate,CuCl2,NH4-oxalate,dithionit-citrate-bicarbonate(DCB)andNa-citratesolutionswereemployedtoetractaluminum(Al)andiron(Fe)sequentiallyandseparatelyfrom15acidicsoilslocatedattheMangshanMountains,HunanProvince,China,ManyevidencesshowedthatseparatepyrophosphateextractedmainlyKCl-extractableAl,organo-AlcomplexesandsomeinorganicAlcompounds,whereasseparateCuCl2extractedKCl-extractableAlandsomeorgano-Alcomplexes,CuCl2extractedmuchlessamountsofAlthanpyrophosphatedidfromthesoils.SeparateoxalatedidnotextractallKCl-pyrophosphate-CuCl2-oxalateseuentiallyextractableAlandFe,Also,separateDCBdidnotextractallKCl-pyrophosphate-CuCl2-oxalate-DCBsequentiallyextractableAl.TheformsofAlextactedbyoxalateandDCBfromthesoilsweremajorlynoncrystalline.Theinterlayeredmaterialsof1.4-nmintergrademineralsofthesoilswereattributedmainlytohydroxyAlpolymers.

简介：2012年四川省国家级生猪调出大县增至86个，比2011年增加2个，88个生猪生产基地县98％纳入国家级生猪调出大县。国家级生猪调出大县奖励资金达56892万元，占全国35亿元的16．25％；比2011年增加1．1l亿元，增幅24．2％。

简介：MicrometeorologicalandmicroplotexperimentswereconductedinthefieldoffreshlyharvestedgreencaneinQueensland,Australia.ResultsshowedthathighammonialossoffertilizerNcouldoccurunderrelativelydryconditionswhenureaorcommercialproductofmixtureofureaandmuriateofpotashwereappliedtothesurfaceofsugarcanetrash.ThemoisturecontentinthetrashandthepHoffertilizerweretwoimportantfactorscontrollingtheprocessesofureahydrolysisandammoniavolatilization.MostoftheNinthesoilwastransformedtothenitratel-nitritefromafter70daysoffertilizerapplication.Nosignificantleachingwasfound.Urea-freeNfertilizershadhigherNrecoveriescomparedtourea-containingfertilizers.

简介：本标准中的9．1是强制性条文，其余条文为推荐性条文。

简介：5月13日，中钢协网站的一篇市场分析报告认为，一季度全国钢铁行业虽然较去年同期扭亏为盈，但仍在盈亏临界点“挣扎”；总资产负债率接近70％，已进入高风险区域；短期借款增加、应收账款大幅增加和管理、财务、销售三项费用大幅增加，表明今年我国钢铁行业的总体运营情势依然严峻。

简介：Background:Mostcurrentapproachesinforestscienceandpracticerequireinformationaboutstructureandgrowthofindividualtreesratherthan-orinadditionto-sumandmeanvaluesofgrowthandyieldatforeststandlevelasprovidedbyclassicexperimentaldesigns.Byinventingthewheeldesign,Nelderprovidedthepossibilitytoturntotheindividualtreeasbasicinformationunit.Suchtrialsprovidevaluableinsightsintothedependencyofgrowthonstanddensityatparticularsites.Methods:Here,wepresentanextensionoftheoriginaldesignandevaluationbyNelder.(i)WeestablishedNelderwheelsalonganenvironmentalgradientthroughEuropeinatlanticclimateinBelgiumandGermany,MediterraneanclimateinItaly,continentalclimateinHungaryaswellasonhighlandclimateinMexico.SuchdisjunctNelderwheelsalonganenvironmentalgradientcanberegardedandanalysedasatwo-factordesignwiththefactorsofsiteconditionandstanddensity.(ii)WepresentanadvancedstatisticalapproachtoevaluatedensitydependentgrowthdynamicsoftreesplantedinformoftheNelderdesign,whichconsidersspatio-temporalautocorrelation.(iii)Weprovetheusefulnessofthemethodsinimprovingecologicaltheoryconcerningdensityrelatedproductivity,trade-offsbetweenfacilitationandcompetition,andallometricrelationsbetweensizevariables.Results:FirstevaluationsbasedonremeasuredNelderwheelsinoak(QuercusroburL.)showasizegrowthdifferentiationduringthefirstobservationperiod.Inparticular,heightgrowthisacceleratedunderhighercompetitionindicatingfacilitationeffects.Wedetectfurthermoreahighvariabilityinallometricrelations.Conclusions:Theproposeddesign,methods,andresultsarediscussedregardingtheirimpactonforestpractice,modelbuilding,andecologicaltheory.WeconcludethattheextendedNelderapproachishighlyefficientinprovidingcurrentlylackingindividualtreelevelinformation.

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