简介：以辣椒种子为实验材料，用不同浓度的水杨酸（SA）浸种和对辣椒幼苗进行根部处理，研究100mmol／LNaCl胁迫对辣椒种子活力及抗盐性的影响．结果表明：一定浓度SA可以缓解辣椒种子盐害，提高其发芽率、发芽势，保护细胞膜的通透性，降低种子浸出液电导率和丙二醛（MDA）含量，缓解辣椒幼苗细胞膜脂过氧化．但超过一定浓度的SA则会抑制辣椒种子的萌发，使种子浸出液电导率和丙二醛含量升高．

简介：Byuseofmicro-DTAtechniqueaswellasambientandhightemperatureX-rayanalysisthephasediagramofNaCl-CaCl2hasbeenchecked.Itis.asimpleeutecticsystemwithasolidsolubilityinthesodiumchlorideside.Theeutecticpointisat773K,49mol%NaCl.Theexperimentalresults,especiallythoseoftheX-raydiffractionstudieshaveshowedthattheincongruentcompound4NaCl-CaCl2doesnotexistintheNaCl-CaCl2system.

简介：Thefollowingdocumentationisanevaluationofthetwo-dimensionalMadelungconstantfortheNaClstructure.TheinfiniteseriesforthestructureisformultedasThefirsttermintheformulaconvergesto41n2.TheseriesafterK=2inthesecondtermisputtogetherwiththethirdtermandaconstant-4/2isleft.ThecombinationofthethirdtermandtheseriesafterK=2inthesecondtermisassumedtobe8Sn.TheconvergingseriesSncanbesolvedonacomputer.Thesevensignificantfiguresofthetwo-dimensionalMadelungconstantfortheNaClstructureisthendeterminedas1.615558.

简介：

简介：Theadsorptionandelectronicpropertiesofisolatedcobaltphthalocyanine(CoPc)moleculeonanultrathinlayerofNaClhavebeeninvestigated.High-resolutionSTMimagesgiveadetailedpictureofthelowestunoccupiedmolecularorbital(LUMO)ofanisolatedCoPc.ItisshownthattheNaClultrathinlayerefficientlydecouplestheinteractionofthemoleculesfromtheunderneathmetalsubstrate,whichmakesitanidealsubstrateforstudyingthepropertiesofsinglemolecules.Moreover,strongdependenceoftheappearanceofthemoleculesonthesamplebiasintheregionofrelativelyhighbias(>3.1V)isascribedtotheimagepotentialstates(IPSs)ofNaCl/Cu(100),whichmayprovideuswithapossiblemethodtofabricatequantumstoragedevices.

简介：

简介：

简介：摘要针对海水冲厕工程的实施，本实验采用序批式活性污泥反应器（SBR）处理实际含盐生活污水，考察了NaCl盐度冲击对耐盐活性污泥强化生物除磷系统（EBPR）的影响。

简介：针对海水冲厕工程的实施，本实验采用序批式活性污泥反应器（SBR）处理实际含盐生活污水，考察了NaCl盐度冲击对耐盐活性污泥强化生物除磷系统（EBPR）的影响。结果表明，经过10g/L盐度长期驯化后的耐盐活性污泥可以较好的适应含盐环境，系统的磷去除率可以稳定在81.73%左右，COD去除率能够达到80.22%;聚磷菌（PAO）约占总菌的5.27%。在厌氧阶段，系统的比放磷速率会随着盐度变化幅度的加大而逐渐降低，相应的糖原降解量和PHA合成量也会逐渐减少。当冲击盐度达到335g/L时，PHA的合成量开始变化负值，此时聚磷菌的除磷作用被彻底掏，系统的耐盐极限为35g/L。在好氧阶段，升高盐度（高于10g/L）对聚磷菌的抑制作用要大于降低盐度（低于10g/L）。系统的比吸磷速率、磷去除率和COD去除率均会随头上盐度变化幅度的加大而逐渐降低，相应的PHA降解量和糖原合成量也会逐渐减少。

简介：Thecorrosionfatiguebehaviorofepoxy-coatedMg–3Al–1Znalloywasinvestigatedinairand3.5wt%NaClsolution.Epoxycoatingasanewmethodwasusedtoimprovethecorrosionfatiguepropertyofthematerial.Resultsshowthatthefatiguelimit(FL)ofthecoatedspecimensishigherthanthatoftheuncoatedspecimensin3.5wt%NaClsolutionbecauseofthestrengtheningandblockingfunctionsoftheepoxycoating.TheFLofthecoatedspecimensin3.5wt%NaClsolutionisashighasthatinair.Itimpliesthatthecoatedspecimensarenotassensitivetotheenvironmentasthemagnesiumalloy.Thelowtensilestrengthandtheshortelongationofthepureepoxycoatingleadtothatthefatiguecrackofthecoatedspecimenisalwaysinitiatedfromtheepoxy-coatingfilmPoresandpinholesacceleratethefatiguecrackinitiationprocess.PinholesarecausedbythecorrosionreactionsbetweentheepoxycoatingandtheNaClsolution.

简介：RamanpeaksofvarioushydratesintheH2O-NaCl-CaCl2systemhavebeenpreviouslyidentified,butaquantitativerelationshipbetweentheRamanpeaksandXNaCl(i.e.,NaCl/(NaCl+CaCl2))hasnotbeenestablished,mainlyduetothedifficultytofreezethesolutions.Thisproblemwassolvedbyaddingaluminapowdertothesolutionstofacilitatenucleationofcrystals.Cryogenic(-185oC)Ramanspectroscopicstudiesofalumina-spicedsolutionsindicatethatXNaClislinearlycorrelatedwiththetotalpeakareafractionofhydrohalite.Capsulesofsolutionsmadefromsilicacapillarywerepreparedtosimulatefluidinclusions.Mostoftheseartificialfluidinclusionscouldnotbetotallyfrozenevenattemperaturesaslowas-185oC,andthetotalpeakareafractionofhydrohaliteisnotcorrelatedlinearlywithXNaCl.However,thedegreeofdeviation(?XNaCl)fromthelinearcorrelationestablishedearlierisrelatedtotheamountofresidualsolution,whichisreflectedbytheratio(r)ofthebaseline"bump"area,resultingfromtheinterstitialunfrozenbrinenear3435cm-1,andthetotalhydratepeakareabetween3350and3600cm-1.Alinearcorrelationbetween?XNaClandrisestablishedtoestimateXNaClfromcryogenicRamanspectroscopicanalysisforfluidinclusions.

简介：采用改变Zn、Sn、NaCl含量的方式，借助机械球磨法制备了Al、Zn、Sn与NaCl有机结合的Al-Zn-Sn-NaCl材料，研究了Zn、Sn、NaCl掺杂对铝合金与水反应水解制氢的制氢速度的影响，并对其组织结构以及反应产物进行了探讨。结果表明，Zn、Sn的加入有利于该系列合金化学活性的提高，尤其是Al＋7％Zn＋7％Sn＋20％NaCl（质量分数）材料，氢气产量为336mL／g，产氢速率为11．2mL／（min·g）。

简介：ThemorphologyandcorrosionbehaviorofNi/Al2O3compositecoatingspreparedusingdouble-pulsedelectrodepositingtechniqueafteroxidizedunder800℃NaCldepositinairenvironmentwereanalyzedbyscanningelectricalmicroscope(SEM),X-raydiffraction(XRD)andenergydispersivespectrum(EDS).TheresultsshowedthatthecorrosionofallcompositecoatingswasacceleratedunderNaCldeposits,andthecorrosionproductswereratherporouswithpooradherencetothematrix.Al2O3particlesinthecoatingscanrefinethegrainsizeandimprovethehightemperaturecorrosionresistanceofthecoatings.Withinthetestscope,themoreAl2O3particlesinthecoatings,thelowercorrosionratescouldbeobtained,andthecorrosionmechanismwasalsodiscussed.

简介：TheelectrodeprocessofY3+iononmolybdenumandnickelelectrodeshasbeenstudiedbycyclicvoltammetryandchronopotentiometryintheYCl3-NaCl-KClmelt.Theoverallchargetransferprocessisatwo-stepreaction:Y3++e=Y2+;Y2++2e=Y.YttriumreducedonthenickelelectrodecanformaseriesofNi-Yalloys.X-raydiffractionanalysiswasemployedtodeterminethealloycompositionsformedunderdifferentcon-ditions.

简介：用丝束电极作为参比或辅助电极，测量不锈钢材料在不同氯化物浓度溶液中的表面性质差异。发现，对于电极电位、电偶电流和交流阻抗值而言，丝束电极测量数据的极差和氯离子浓度对数均呈良好线性关系。它们作为评价材料点蚀敏感性指标要比传统指标，如：点蚀电位和阳极极化曲线滞后环面积等更加优越。此外，基于自然浸泡试件的材料表面电位极差一时间曲线，也可用丝束电极研究材料的点蚀潜伏期。

简介：研究了NaCl—MnO2改性沸石填料柱对水中Zn^2＋的动态吸附性能。探讨了填料厚度、Zn^2＋的初始质量浓度和流速对穿透曲线的影响。结果表明，NaCl-MnO2改性沸石能有效去除水中的zn^2＋，填料层增厚，穿透曲线上的穿透点向右移动，穿透时间延长；而流速、Zn^2＋的初始浓度增大，穿透曲线上的穿透点向左移动，穿透时间缩短；用Thomas模型描述Zn^2＋初始质量浓度为50mg／L、滤速为4mL／min时改性沸石对Zn^2＋的吸附动力学，相关系数为0．9994，平衡吸附容量为12．04mg／g。

简介：

简介：研究纯镁在1.0%NaCl中性溶液中的腐蚀行为及其相应的电化学阻抗谱（EIS）和极化曲线,探讨不同时间段EIS的分形维数。结果表明,腐蚀过程及相应的EIS发展可分为3个阶段。初始阶段,EIS由2个重叠的容抗弧组成,相应的极化电阻及电荷转移电阻随着时间的延长而快速增加,而腐蚀速率则降低。而后,EIS图谱上出现2个容易辨认的容抗弧,电荷转移电阻及腐蚀速率基本保持稳定。长时间浸泡后,EIS图谱中低频部分出现感抗成分,电荷转移电阻降低,而腐蚀速率增加。EIS分形维数与材料表面形貌直接相关,将是分析腐蚀形貌极有用的工具。

简介：最近，女孩聚在一起讨论的话题走向有所变动，已经从该如何护理皮肤，去哪里做面部facial变成了“头皮怎样护理”无数的头皮保养Spa，头皮产品拔地而起，头皮肌底忽然变得比脸要重要10倍。但是，姐妹们真的对头皮有了解吗，真的跟风正确了吗？

简介：这段时间,电视里有广告说:喝奶要喝"无抗奶",一些媒体也宣称"无抗奶"将重新划分中国奶业格局,国内的一些牛奶品牌也打出了"无抗"的招牌.仿佛一夜之间,"元抗奶"就闯进了中国老百姓的生活.然而相当多的人至今也没弄明白什么是"无抗奶".