简介：成都气象学院研制的XDR-X数字化雷达，对711测雨雷达进行了脱胎换骨的改进，使这个面临被淘汰的711型雷达焕发出了新的活力。在XDR-X基础上，成都气象学院又在进行双极化雷达的研制，使XDR-X数字化雷达的发展空间更加广阔。

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简介：Aone-dimensionaltime-dependentphotochemicalmodelisusedtosimulatetheinfluenceofion-producedNOxandHOxradicalsontheAntarcticozonedepletioninpolarnightandpolarspringatalatitudeof73degreessouth.Verticaltransportandnitrogen-oxygen(NOx).hydrogen-oxygen(HOx)productionbyionicreactionshavebeenintroducedintothemodel.NOxandHOxproducedbyprecipitatingionsaretransportedintothelowerstratospherebyverticalmotionandhavesomeeffectsinthedevelopmentoftheAntarcticozonedepletion.Fromwinterthroughspringthecalculatedozonecolumndecreasesto269.4DU.However,thisvalueissignificantlyhigherthanthetotalozoneobservedatseveralAntarcticozonestations.

简介：Thispaperderivesthephysicalmeaningsofpeakposition,peakwidthandheightofanX-raydiffractionpeakfromtheanalysesoftheBragg'sequation,theScherrer'sformulaandtheprincipleofpeakintensitycalculation.Thegeometriccharacteristicsofanasymmetricpeakareclarifiedbymeansofexperiment.Therelationshipsbetweenneakshapeanddomainsize/latticestrainhavebeenverifiedbygeologicalevents.Thereforethispaperintegratesthephysicalmeaningsofall5basicparametersforanX-raydiffractionpeak.Applicationsofthese5parame-tersareexemplified.

简介：简单介绍了县局如何通过X.28实现和地区局域网互联,并详述了X.28的配置方法。

简介：TheWahongshanfaultzoneinQinghaiprovinceisoneofthemostimportantfaultsinwesternChina.Inthispaper,deformationandX-raypetrofabricshavebeenstudiedinthemiddlesegmentofthefault.Theresultsshowthattheformationofthefaultzonescanbedividedintotwomajorstages:ductilesheardeformationstageandbrittledeformationstage.TheearlystageductileshearingleadstotheformationoftheNW-NNWtrendingmylonitezonesalongthefault,whichisintenselycutbythelate-formedbrittlefaults.X-raypetrofabricsofrocksnearthefaultsindicatethatthemineralsinthetectonitesshowagreatdegreeoforientationinthealignment.Thequartz,whichisaveryimportantmineralinthetectonites,isdeformedbybasalfaceglidingornearbasalfacegliding,andsometimesbyprismaticfacesliding,whichindicatesthattherocksaredeformedinepithermaltomesothermalormesothermalenvironment,andthedynamicrecrystallizationalsoplaysanimportantroleintheformationofthequartzalignment.TheresultsalsodemonstratethatplutonsformedintheHercynianandIndosinianstagesshownogreatductiledeformationascanbeseenfromtheX-raypetrofabrics,soitisconcludedthattheserocksareformedaftertheformationoftheductileshearzones.ResultsofStructuraldeformationanalysisandisotopegeochronologicanalysisofsyntectonicmuscoviteindicatethatWahongshanductileshearzonesareformedinthelateSilurianPeriodduringthelateCaledonianstage.

简介：本文介绍了用ＣＡＳＩＯｆｘ－４５００Ｐ计算器编制了圆曲线放样的程序，该方法快捷，灵活，非常适合野外现场工作。对从事线型工程的测绘工作者具有一定的参考价值。

简介：近几年来,随着科学技术的发展,新型的X波段数字化雷达在气象领域的应用越来越广泛,所起的作用也越来越重要.但随之而来的新问题也不断出现,特别是数字化雷达发射机故障.文章就X波段数字化雷达发射机从组成到工作原理进行了详细的论述,并针对其在工作应用中常出现的几种故障,从原理、现象入手,分析原因,提出合理的解决方法和注意事项.

简介：十红滩铀矿床南矿带含矿层位为侏罗系西山窑组第一岩性段，段内砂体可分为上、下两层。通过对区内120多个钻孔含矿砂体厚度及其底板海拔高度的统计和砂体等厚度图、砂体底板等值线图的编制，详细描述了十红滩铀矿床南矿带含矿砂体的空间展布特征，划分了5条主要辫状河河道。将上述图件与矿体进行融合，发现矿体与辫状河河道有密切关系，并受砂体底板和后期构造的控制。通过此项研究，对扩大十红滩南矿带矿床规模和勘探方向提出了合理化建议。