简介：

简介：现在的学习在Essouk河里调查作文和沉积的矿物学，在近似在上游的2km在黑人Kamber采矿地区在阿尔及利亚的东北定位了Guenitra水库。自从1976，矿被放弃，但是酸的排水水仍然是河污染的来源。粉末X光检查衍射(XRD)，与精力扫描电子显微镜学(SEM)散分析(EDX)，X荧光分析和红外线的光谱学分析被用来描绘在采矿自河附近在区域在各种各样的地点取样的表面沉积。获得的结果证明沉积的作文被铁和硫主要统治。在矿的附近，jarosite和schwertmannite是必需品猛抛。下游地，沉积被铁oxyhydroxydes的各种各样的阶段与吸附的硫酸盐的存在形成。

简介：

简介：沿着山东省的东方海岸有教养的牡蛎的化学成分的每月的差别被分析。部件分析了包括的肝糖，丰满的酸和免费氨酸(FAA)。肝糖的内容在1月和三月高(2.89并且2.82g(100g)~(-1)平均，分别地)并且在10月低(2.07g(100g)~(-1)平均)。在10月的中立类脂化合物的低内容反映了牡蛎的相对差的营养的价值(1.42g(100g)~(-1)平均)。牡蛎的主要的丰满的酸是十六酸酸(16:0)，油的酸(18:1)，eicosapentaenoic酸(EPA，20:5ω-3)并且docosahexaenoic酸(DHA，22:6ω-3)。牡蛎的majorFAAs是公牛的，Glutamicacid，Glycin，丙氨酸，精氨酸和脯氨酸。公牛有它的内容的最丰富的FAA从603mg(100g)正在~(-1)到1139mg(100g)~(-1)。肝糖的高内容，丰满的酸和FAA显示出的多元不堡和沿着山东省的东方海岸有教养的那只牡蛎是在1月和三月好的营养联盟者。

简介：Thispaperreportsthekineticsofgrouptransferpolymerization(GTP)ofethylacrylate(EA)withzinciodidecatalystin1,2-dichloroethaneusingdimethylketenemethyltrimethylsilylacetal(MTS)asinitiatorat0℃andabove0℃.Theamountofcatalystusedwasstudied.Whenzinciodidecatalystusedismorethan10mol%relativetomonomer,therateofpolymerizationisproportionaltotheconcentrationofmonomer,whereaszinciodidecatalystusedislessthan10mol%ofthemonomer,therateofpolymerizationisindependentofthemonomerconcentration.IntheGTPofEAaninductionperiodwasobservedwhenthezinciodidecontentsarelessthanl0mol%.Ifthereactiontemperatureisover0℃,livingspeciesbecomeunstableanddiminish,leadingtoincompletemonomerconversion.Thereactioncurvesequationsareobtained.Thepolymershavenarrowmolecularweightdistributionswhicharenotchangedasdecreasingzinciodidecontents.Thepolydispersityisabout1.2.

简介：Theadsorptionoffreeacidoflowconcentrationbycrosslinkedchitosanresinwasfollowedbyelectrochemicalexperimentaltechnique.Theeffectofacidconcentrationandthemediaonadsorptionwasdiscussed.Theexperimentalresultsshowthatboththeapparentrateconstantandtheinteractionenergybetweentheadsorbentandadsorbatearedecreasedwhiletheconcentrationofhydrochloricacidisincreased.Intheadsorptionsystem.theadsorptionwaseffectedbyaddiitonoforganicsolvent.

简介：

简介：我们为在人的线粒体与氨基酸新陈代谢联系的新陈代谢的小径的鉴定和重建使用了一条生物信息学途径。试验性、计算的方法决定的人的mitochondrial蛋白质从KEGG数据库在参考小径上被迭加识别mitochondrial小径。在为每条重建的小径的入口和出口点的酶被识别，并且mitochondrial溶质搬运人蛋白质是坚定的在哪儿适用。在mitochondrial小径的中间的酶基于从公共数据库，在当前的文学的证据，或我们的MITOPRED程序可得到的注解被识别，它预言蛋白质的mitochondrial本地化。通过从试验性、文献、计算的来源导出的数据的集成，我们重建了氨基酸在人的线粒体的新陈代谢的小径，它帮助能更好处于人的健康理解mitochondrial新陈代谢和它的角色。

简介：Dopedpolyanilinefilmswerepreparedwithelectrochemistrymethod.Asmallconjugatedmolecule,anthracenecarboxylicacid(2-ACA),wasusedasthedopant,consideringitselectricalactivenessduetotheconjugatedπ-π*structure.Filmmorphologyofdopedandundopedpolyanilinesampleswasinvestigated.ThecorrespondingchangesinopticalandelectricalpropertiesafterACAdopingwerediscussed.Bymeasuringandcalculatingtheirenergyleveldistribution,apromisingapplicationofpolyanilinethinfilmsasbufferlayerinoptic-electricdevicesisexpectable.

简介：醋酸是一件基本器官的化学化工物品。作为醋酸的最快的成长市场，中国在2006在200万大量醋酸上消费了。南京为它的石油化学的工业的开发认为醋酸工业是钥匙。

简介：Theadsorptionbehaviorsandmechanismofanovelchelateresin,macroporousphosphonicacidresin(PAR)forGd(Ⅲ)wereinvestigated.Thestaticallyanddynamicallysaturatedadsorptioncapacityisrespectively308mg·g-1resinand296mg·g-1resinat298KinHac-NaAcmediumatpH5.6.Gd(Ⅲ)adsorbedonPARcanbereductivelyelutedby0.5～5.0mol·L-1HClusedaseluantandtheelutionpercentageisupto94.7%in1.0mol·L-1HCl.Theresincanberegeneratedandreusedwithoutapparentdecreaseinadsorptioncapacity.Theapparentadsorptionrateconstantisk298=3.96×10-5s-1.TheadsorptionbehaviorofPARforGd(Ⅲ)conformstotheFreundlichisotherm.Thethermodynamicadsorptionparameter,enthalpychange△HofPARforGd(Ⅲ)is22.6kJ·mol-1.Theapparentadsorptionactivationenergy(Ea)ofPARforGd(Ⅲ)is5.0kJ·mol-1.ThemolarcoordinationratioofthefunctionalgroupofPARtoGd(Ⅲ)isabout3∶1.TheadsorptionmechanismofPARforGd(Ⅲ)wasexaminedbyusingchemicalmethodandIRspectrometry.

简介：Polyepoxysuccinicacid(PESA),asanenvironmentalbenignbiodegradablechelant,wasusedtoremoveheavymetalsfromthesewagesludgeofShanghaiTaopuWastewaterTreatmentPlant.Theextractionofcadmium(Cd)fromsewagesludgeusingaqueoussolutionofPESAwasstudied.ItwasfoundthatPESAwascapableofextractingCdfromthesludge,andtheextractioneffciencywasdependentonbothpHandtheconcentrationofthechelatingreagent.TheextractioneffciencydecreasedgraduallywithincreasingofpH,whereasthedependencyonpHdecreasedastheconcentrationofPESAincreased.InthecaseofthehighPESAtototalmetalratio,e.g.,10:1,theextractioneffciencyreachedabove70%withinthepHrangefrom1to7.Thehighestextractioneffciencyobtainedintheexperimentwas78%.Bycomparingthecontentsoftheheavymetalsinsewagesludgebeforeandaftertheextraction,itwasfoundthattheextractedCdcamemainlyfromthefourfractions:acid-soluble,reducible,oxidizable,andwater-solublefractions.

简介：客观:cross-linked生产，它被准备由哈并且cross-linking代理人STMP，EDC，通过cross-linking反应的GP，可能在药交货系统(DDS)被使用。保证临床的申请的安全，优秀性质象没有房间毒性那样，nonirritant，没有将军毒性，没有免疫学的拒绝是必要的。方法:根据GB/T的请求，16886.1在医药biomaterials，房间毒性测试，溶血测试，intracutaneous刺激测试，尖锐毒性测试，和过分敏感的测试的安全评估上被要求。结果：HA-STMP的房间毒性，HA-EDC，HA-GP都是不到1。所有过分敏感的测试是合格的。但是HA-EDC，忽视的生产的不同的度激动的HA-GP，细微毒性，溶血率，它比标准价值大。结论:HA-STMP拥有赞成biocompatibility，它是一种理想的biomaterials和药搬运人。

简介：Theβ-carboxylicgroupplaysanimportantroleinthepeptideformation,esterificationandtheesterexchangeatthephosphorylgroupofN-phosphorylatedasparticacid.

简介：

简介：Aflexibleapproachtoethyl(3R,4S)-N-Boc-4-amino-3-hydroxy-5-phenylpentanoate(N-Boc-AHPPA-OEt),theγ-amino-β-hydroxyacidmoietyofhapalosinisdescribed.Thesyntheticmethodfeaturesaring-openingethanolysisofanactivatedN-Boc-lactam,whichisobtainedviaadiastereoselectivereductive-alkylationof(R)-malimidederivative.TheflexibilityofthemethodresidesintheintroductionofthealkylsidechainbyGrignardreagentaddition.

简介：合成了二十个９羧基氧杂蒽类衍生物并通过ＣＩＭＳ和ＥＩＭＳ确定了所有化合物的结构。初步的药理实验表明部分化合物具有明显的抗痉挛作用

简介：<正>AninvestigationoftheStateEnvironmentalProtectionAdministrationshowsthat38.6%of343citiesinChinahavereachedGradeIIairquality.TheadministrationheldameetinginHangzhouinNovemberthisyearanddiscussedhowtoenhancetheconstructionandoperationofdesulphrizationequipmentofthermalpowerplants.

简介：SudanKhartoumRefineryCo.hasselectedauniqueroutefeaturingdelayedcokingofcrudeinconnectionwiththehighlysourandhigh-calciumheavycrudeextractedfromSudaneseoilblockNo.6.Thecrudeoilafterpretreatmentforcalciumremovalissubjectedtocokingforremovalofacidsandmetalswiththecokerproductsbeingfurtherprocessed.ThecrudeoilextractedfromSudaneseoilblockNo.6containsashighas13mgKOH/gofcrudeinadditiontoacalciumcontentof1600ppm.Thisarticlemakesananalysisonproblemsrelatedwiththeoperationofcommercialdelayedcokingunitforprocessingofhighlysourcrudeandbringforthmeasurestosolvetheseproblems.Theliquidyieldresultedfromcokingofcrudeoilcanreach82m%,andthepetroleumcokecanmeetthequalityrequirementforclass3Bpetroleumcoke.

简介：Soilsalinityisoneofthemostimportantproblemsofcropproductioninestuarineandcoastalzones.Improvementinsalttoleranceofmajorfoodcropsisanimportantwayfortheeconomicutilizationofcoastalzones.Thisstudyprovedthattheapplicationofsalicylicacid(SA)improvedthegrowthandyieldundersaltstressconditionsandinvestigateditsphysiologicalmechanismsforsalttolerance.TheinvestigationontheeffectofSAforsalttoleranceduringgerminationshowedthatthedecreasedratesofgerminationandgrowth(intermsofshootandrootlengths)bythesaltstressweresignificantlyincreasedbytheSAapplication(SA+NaCl).ThetreatmentofSAtothehighandlowsalinesoilsenhancedthegrowth,yieldandnutrientvaluesofrice.TheeffectsofSAonNa+,K+andCl–ionicaccumulationweretracedundersaltstressconditionbyinductivelycoupledplasmaopticalemissionspectrometryandionchromatography.ItwasrevealedthattheincreasedaccumulationofNa+andClˉionsbythesaltstresswerereducedbySAapplication.AnincreasedconcentrationofendogenousSAlevelwasdetectedfromtheSA-treatedricevarieties(ASD16andBR26)byliquidchromatographyelectrosprayIonization-tandemmassspectrometry.Theactivitiesofantioxidantenzymessuchassuperoxidedismutase,catalaseandperoxidasewereincreasedbysaltstresswhereasdecreasedbytheSAapplication.ThestudyprovedthattheapplicationofSAcouldalleviatetheadverseeffectsofsaltstressbytheregulationofphysiologicalmechanisminriceplants.Inspiteofsaltstress,itcanbeappliedtothecoastalandestuarineregionstoincreasethericeproduction.