简介：MomenttensorsolutionswereretrievedfortheearthquakeswarmthatoccurredduringNovemberandDecember2010intheBoshanminingarea,ShandongProvince,China.Theresultsshowedthatthedouble-couplecomponentsinthesourcemechanismswerehigheratthebeginningoftheswarmandconsistedmainlyofshearfaultingcontrolledbytectonicstress.Thesubsequenteventshadsignificantnon-double-couplecomponents,indicatingtensilefaulting.Thedouble-couplecomponentspredominatelypresentedasnormalfaultingandthePaxeswereorientatedalmostvertically.Theslipvectorsoftheswarmeventswererelativelystable.Withreferencetothetectonicfeaturesneartheepicenter,weconcludedthattheswarmwasaresultofsubordinatefaultmotionrelatedtotheWangmuMountainfaultandthathigh-pressureporefluidsplayedacrucialroleintheactivityoftheearthquakeswarm.

简介：solani孤立的Rhizoctonia的55件代表性的样品，从在四川省的五个不同生态的区域镇定、孤立，中国，为致病力和分子的基因变化被净化并且分析。菌丝的熔化测试表明除了isolateD42，几乎所有isolates属于AG-IIA组。另外，一些isolates正在衔接孤立，它能同时与几熔化组。致病力分析在上在vitro，叶子证实了一个重要致病力变化在测试孤立。55孤立然后被进一步的RAPD(随机放大的多态的DNA)分类进8个组在0.941的类似系数的簇分析。结果在四川省在某些生态的条件下面建议那，中国，大多数R。solani紧张是遗传上稳定的，但是一些急速地变化了。

简介：Forthehealthymanagementofplantation,ahealthassessmentindicatorsystemwasdesignedatforeststandscaleforthelarchplantationinJin'oulingForestFarm,WangqingForestryBureau,JilinProvince.Thesystemconsistedof3categories—foreststructure,externalinterferencesandmanagementobjectives,with15indicators.Theresultsshowedthat:1)theassessmentindicatorsystemwasscientificandrationalfordifferentagegroupsoflarchplantations;2)boththehalf-maturelarchplantationand...

简介：HouqiumctamorphosedscdimcntaryirondcpositislocatcdinHouqiuCounty,wcstAnhuiProvincc.TheorcbodicsoccurinAlgomanfcrrifcrousformationstwhicharccomposcdoftherocksoftheLowAtchaeozoicErathem,obviouslyundercontrolofthelinearfo1ds’Tlieirondepositisancxam-pleofbandedsilicon-ironformationoftbenorth-south-seatr

简介：SystematicgeochemicalstudiesoftheProterozoicLengjiaxiGroupinnortheasternHunanProvincesuggestthattheLengjiaxiGroupisaAu-As-Sb-Wassociation-typeAu-bearingturbiditeformation.ThecontentsofAu,As,Sb,W,Cr,Mn,PbandZnintheturbiditeformationaremorethantwotimesashighastheaveragecontentsoftraceelementsintheuppercontinentalcrust.ThelowabundanceofAgandtheclosecorrelationbetweenAuandAsaretwoimportantcharacteristicfeatures.IntheAu-bearingturbiditeformationtheenrichmentofgoldisduetotheextensiveoccurrenceofAu-bearingpyrites.HighercontentsofAu,W,SbandAginthegreywackeindicatethattheyalsoexistintheformofheavyminerals.Au,Ag,As,Sb,WandREEintheAu-bearingturbiditeformationhaveaclosegeneticrelationwiththechemistryofthegolddeposits.

简介：Inthisstudy,anelectronmicroprobeanalyzer(EMPA)wasusedtomapthespatialdistributionandtheoccurrenceofinvisiblegoldinpyritefromtheLiulinchagoldorebelt.EPMAdatashowthatgoldmainlyoccursassubmicroscopic-microscopicinclusions.FromthecontrastofthemajorguideelementsofpyritefromtheLiulinchagoldorebeltandthosefromfourhydrothermal-typegolddepositsintheJiaodongregion,wecanseethepyriteswereformedintwostages:thepyritefromwallrockismainlysedimentogenic,withsimplestructure;andthepyritefromorebodyexperiencedearlysedimentaryprocesstolatehydrothermalactivity,thepyriteisregularincrystalformandexhibitsfracturedstructure.

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简介：AbstractBackground:Following initiation of China’s National Malaria Elimination Action Plan (NMEAP) in 2010, the '1-3-7’ approach was developed and rolled out in China to facilitate the malaria elimination programme and accelerate malaria elimination. This study aims to summarize and condense these experiences through a retrospective analysis in Jiangsu Province, which could be adapted and applied in other malaria elimination settings worldwide.Methods:A retrospective analysis of imported malaria cases into China identified through an improved surveillance and response system in Jiangsu Province was carried out for the period of 2001-2020. To improve the malaria surveillance and response system, Centers for Diseases Control and Prevention from the prefectures and counties in Jiangsu province conducted population-level health education to improve healthcare seeking behavior, strengthened capacity of health facilities to improve performance of malaria diagnosis and treatment, and raised the capacity of public health providers to improve implementation of the '1-3-7’ approach. Categorical variables were carried out by Chi square tests with Fisher’s exact correction.Results:From 2001 to 2020, a total of 9,879 malaria cases were reported in Jiangsu Province. Since 2012, no indigenous malaria cases have been reported in Jiangsu Province. However, in recent years, there has been a substantial increase of imported falciparum malaria cases. Between 2012 and 2020, an estimated 61.57 million individuals have benefited from population-level health education in Jiangsu Province. For healthcare-seeking services among the 2,423 imported malaria cases, 687 (28.4%) and 1,104 (45.6%) cases visited hospitals on the first day and the second day from symptom onset, respectively. A total of 1,502 (61.9%) cases were diagnosed on the first day at medical facilities. Jiangsu Province achieved 100%, 99.4% and 98.3% completion rate in terms of case detection and notification (within one day), case investigation (within three days) and foci response and disposition (within seven days), respectively. The improved surveillance and response system in Jiangsu Province plays an important role in preventing the re-introduction of malaria and maintaining the malaria-free status.Conclusions:Jiangsu Province has maintained its malaria-free status since 2012. The continuous improvement of a surveillance and response system plays an important role in the early detection and rapid response of potential malaria-related outbreaks in Jiangsu, China, and has important lessons for other malaria eliminating settings. Remaining vigilant in the detection of imported malaria cases and maintaining an active surveillance and response system is critical to sustain the success of malaria elimination.

简介：摘要：因为缺乏典型lithological符号和石块标准，在Daxian-Xuanhan区域关于二叠/三叠纪的边界和它的关联有不同意见。特别，它是很难的决定在Daxian-Xuanhan的二叠/三叠纪的边界埋葬了区域。这把许多困难带到地质的研究和油和煤气的探索。基于领域调查和木头分析的井核心，最新发现的石块，lithological特征和井的研究，作者在Daxian-Xuanhan区域讨论了二叠/三叠纪的边界并且向前为它的决心和地区性的关联带了一个特定的计划。

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简介：很多个基于过程的模型为确定被开发了在agro生态系统的碳(C)隐遁。DeNitrification分解(DNDC)模型被用来模仿并且确定长期(1980–2008)玷污器官的碳(SOC)在重要的生产大米的省的动力学，江苏，中国。在SOC存储的变化从在空间分辨率不同的二个土壤数据库被估计：由68个多角形和土壤组成的一个县数据库为在江苏的稻田的所有3.7Mha的701个多角形的基于补丁的数据库。分别地，当那与好决定估计数据库是201.6和216.2时，有粗糙的决定县数据库的模仿的SOC存储在2008在1980和170.3–305.1TgC在131.0–320.6TgC之间变化了在1980和2008的TgC分别地。建模，土壤数据库在空间分辨率不同的结果显示用土壤输入，有更高的分辨率的数据实质地增加了建模的结果的精确性；并且当缺乏详细土壤数据集时，DNDC模型，有最敏感的因素(MSF)的parameterized应付属性无常的方法，尽管，能仍然生产可接受的结果与为在这份报纸报导的案例研究的多达60%的偏差。

简介：Thechemicalcharacteristicsofprecipitationwereanalyzedbasedonthechemicalcompositionofprincipalionicwithinacidrain（fromFebruary2007toJanuary2008）ofLiaozhongMeteorologicalStationlocatedinMalongVillageinLiaozhongCountyofNortheastChina,meteorologicalconditionsonthecorrespondingperiodground,andvariationofseveralairpollutantsconcentration.Theresultsindicatedthat:（1）TheprecipitationaveragepHvalueofallsampleswas4.76;thefrequencyofacidrainduringtheobservationperiodwas70.7%;thefrequencywas82.8%insummerandautumn.（2）Inthechemicalcompositionofprecipitation,theprimaryanionswereSO42-andNO3-;theprimarycationswereNH4+andCa2+.（3）Allconcentrationofanionswashigherinsummerandwinter,butrelativelylowinspringandautumn.Thisshowedthattherelationshipbetweenregionalrainfallacidificationandpollutionwasnotsignificant.（4）Rainwateracidityandnearlyfloorgaseouspollutionconcentrationweredifferentfromeachother,andpHandNOx,CO,NO2andO3concentrationsshowedsignificantnegativecorrelation,butwasnotobviouswithSO2concentration.However,thepHandalkalinepollutants,suchasparticulate,waspositivelycorrelative.

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简介：TheEmeishanlargeigneousprovince(hereafternamedbyitsacronymELIP)isthefirstacceptedlargeigneousregioninChina.Thecurrentstudytriestoreconstructthedensitystructureofthecrustinthisregion.Forthispurpose,weconductedthegravitysurveyalongan800-km-longprofile,whichstretchedlaterallyalongthelatitude27°NfromLijiang(Yunnanprovince)toGuiyang(Guizhouprovince).Thefieldworkincluded338gravitymeasurementsdistributedfromtheinnerzonetotheouterzoneofthemantleplumehead.Afteraseriesofgravityreductions,wecalculatedtheBouguergravityanomalyandthenconstructedthedensitymodelforELIPbyiterativeforwardmodelingfromaninitialdensitymodeltightlyconstrainedbywide-angleseismicreflectiondata.ThetopographyoftheMoho,herephysicallyinterpretedasadensitydiscontinuityof~0.4g·cm–3,graduallyrisesfromtheinnerzone(~50kmdeep)totheouterzone(~40km),describesathickercrustintheinnerzonethaninanyothersegmentoftheprofileandlargelyreproducestheshapeoftheBouguergravityanomalycurve.BoththeBouguergravityandthedensitystructureshowsignificantdifferenceswithrespecttotheinnerzoneandtheothertwozonesofELIPaccordingtothecommonlyacceptedpartitionoftheEmeishanarea.Athickeranddensermiddle-lowercrustseemstobethemainfeatureofthewesternsectionoftheprofile,whichislikelyrelatedtoitsmaficmagmaticcompositionduetomagmaticunderplatingofthePermianmantleplume.

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