简介：Yttriastabilizedzirconia(YSZ)haswidelybeenusedaselectrolyteinsolidoxidefuelcell(SOFC).ThemicrostructureofYSZrelatedtothefabricationprocesswasdiscussedinthepaper.WithYSZnano-powdersabout40-100nmasrawmaterial,theYSZadobewasmanufacturedbytapecalenderingprocess.Thenamedthree-stepsinteringprocesswasperformedat1000℃for2h,thenraisedthetemperaturewithnormalrateandassoonasupto1400℃,thefurnacewascontrolledat1250-1300℃for10-20h.ThehighdenseYSZswiththerelativedensityof96%-99%wereobtained;thegrainsizeofYSZcouldbereducedto0.5-3μm.Theaboveresultisbenefitedtoco-firedintheelectrode-supportedSOFCs.

简介：在过去的十年，biohydrometallurgy的领域里的进步是重要的。17新奇biomining微生物的一个总数被发现，并且八铜堆bioleaching种并且11黄金biooxidation植物被建立或膨胀。在这评论，它被总结为学习微生物引起的社区动力学和结构的最新孤立的biomining微生物和三个新奇微生物引起的生态的方法的生理的性质。另外，关于象铀，铝，碲，金者，铟，和第二等的稀罕金属资源那样的稀罕金属的biohydrometallurgy研究，以及象铜，镍，钴，和黄金那样的重非铁的金属被考察了，与在中国的一个重音。在未来，黄铜矿，稀罕金属，从废物的第二等的资源，和资源利用引起的环境污染的bioleaching上的进一步的研究是必要的。图形的AbstractZijinshan堆bioleaching植物与30,000的能力在2012重启操作?tonent蠨?蠨吗？？

简介：热变丑行为借助于扫描电子显微镜学(SEM)和单轴的热紧张被学习。流动应力上的变丑温度和紧张率的效果被评估，并且变丑机制被分析。压力紧张Ti-6Al-4V(TC4)合金表和TC4合金酒吧弄弯在的结果表演提高了温度有不同形式和规则。TC4的流动应力被紧张率和变丑温度控制。流动压力随高温度的增加减少。变丑机制在高温度区域和谷物边界以内展出动态恢复和再结晶特征在低温度滑动行为。

简介：Theeffectsoflow-CoAB5typehydrogenstoragealloyspreparedbyquenchingandannealingontheperformancesofMH-Nibatterieswereinvestigated,andthecharacteristicsofthelow-CoAB5typehydrogenstoragealloyswerecomparedwiththoseofthehigh-CoAB5typehydrogenstoragealloyaswell.Theresultsshowedthatthefasterthecoolingofthelow-Cohydrogenstoragealloyis,thebetterhomogeneityofthechemicalcompositionforthealloyandthelongercyclelifeofthebatteryare,buttheelectrochemicaldischargecapacityandhigh-ratedischargeabilityarereduced.Thehigh-ratedischargeabilityandchargeretentionofMH-Nibatteriesfortheconventionalas-castannealedlow-Cohydrogenstoragealloyweresuperiortothosefortherapidlyquenchedlow-Cohydrogenstoragealloyandthehigh-Cohydrogenstoragealloy,butalittleinferiorinthecyclelife.

简介：Soil,cropandresidents'hairoverXiaoqinlinggoldminingregion,China,whichwasselectedasacasestudy,weresampledandanalyzedforHg,Cd,Pb,Cu,Cr,AsandZnconcentrations.Theconcentrationsofheavymetalsinsoilorcropandhairsampleswereusedtoassesstheirpotentialecologicalrisks,ortofindtheresponsestothesemetalsasevidencestoprovethepotentialriskwascomingdowntoobservedharm,respectively.Theresultsshowedthat,thesemetalsinsoilwererankedbyseverityofecologicalriskasHg>Cd>Pb>Cu>Cr>As>Zn,basedontheirsingle-elementindexes.Intheviewofthepotentialecologicalriskindexes,ofallsoilsamples,abouthalfhadsignificantlyhighorhighpotentialecologicalrisk,whichcoveredmorethan74%ofthestudiedregion.Mostoftheriskswere97.41%fromHg,PbandCd,especially,84.37%fromHg.Boththesingle-elementandpotentialecologicalriskindexesindicatedthat,theecologicalriskgradeshadaspecialspatialcharacteristic,andincreasedfromnorthwesttosoutheastgenerally.Thiswasagreedwiththespatialdistributionofthestrengthingoldminingactivitiesoverthestudiedregion.TheconcentrationsofHgandPbwerehigherthantheirrelativebackgroundsinthecorps,andwereeven9.48and25.09timeshigherthantheirrelativebackgroundsinresidents'hair,respectively.Alltheseshowedthattheheavymetalsinthesoilhadahighpotentialecologicalrisk,especially,hadbeenaffectingthesecrops'growingandyield,andeventheresidents'healththroughfoodstrains.Obviously,thesemetals'potentialecologicalharmhadbeencomingdowntoobservedharmtotheecology.