简介:Helicopterinspectionofultrahighvoltage(UHV)transmissionlineshasunmatchedadvantagescomparedtomanualworkduetotheinspectionangleandhigh-techequipmentonboard,especiallyindetailedinspectionsoftowerheadsanddefect-detectionsinvirtueofinfrared/ultraviolettechniques.Thispaperdealswithsomekeytechnicalproblemsintheinspectionsof1000kVUHVAClineswithahelicopter,suchasthesafedistanceoflive-lineworking,electromagneticfieldintensityandflightcontrol.Basedonthestudyresults,asetofUHVlineinspectionmethodswasworkedoutandappliedtotheinspectionofliveUHVlines.
简介:Netemissioncoefficientsofradiationwerecalculatedforisothermalplasmaofmethaneasafunctionoftheplasmatemperature5,000~30,000Kandthearcradius0mmto10mmatatmosphericpressure.Calculationstakeintoaccountcontinuumandlineradiations,specialattentionhasalsobeengiventotheinfluenceofoverlappingspectrallines.ThelineshapesinourcalculationsaregivenbyconvolutionofDopplerandLorentzprofiles,resultinginasimplifiedVoigtprofile.Inthecaseofahydrogenprofile,weusedtheVidaltables,andthefourfirstLymanlinesandthefourfirstBalmerlineswereconsidered.Thiscalculationwascarriedoutontheassumptionoflocalthermodynamicequilibriumandinanondiffusiveenvironment.ThenetemissioncoefficientcalculationforpureargonplasmawascomparedwiththeexperimentalresultsofEvansinourpreviouswork.Weusedtheescapefactor,andourresultswerehigherthanthoseoftheexperiment.Inthispaper,weexplainwhy,usingtheescapefactor,theradiationisoverestimated.ThenetemissioncoefficientobtainedfromarealspectrumwascomparedwithEssoltaniwork’swhichusedtheline-by-linemethodforpureargonplasma.
简介:干旱是到在rainfed低地的米饭生产的主要不能生活的限制并且不足地灌溉区域。干旱的改进容忍的变化是策略之一减少干旱的否定效果。为与染色体上的干旱忍耐(DT)有关的主要、第二等的特点的量的特点loci(QTL)1,3,4,8和9从线从在CT9993和IR62266之间的一个十字导出的两倍haploid决定了那是introgressed并且在Khao邮政马里105的基因背景(KDML105)把了进小片开发染色体片断替换线(CSSL)人口。CSSL在干旱应力下面为他们的农学的表演和收益部件在繁殖阶段被评估,并且结果与灌溉状况相比。CSSL线的flowering比KDML105早是6~7d。在CSSL的谷物收益的吝啬的价值比在干旱下面的KDML105高并且灌溉了条件。以灌溉状况,谷物从4和8是的染色体带DT-QTLs的基因渗入线让步比KDML105的高,而另外的特点与KDML105显示出小差别。当否定地与天相关到flowering时,分析显示谷物产量在干旱应力下面每植物每植物,和全部的谷物重量与植物高度,tiller和圆锥花序数字有积极关联。是提及在上面,在干旱应力下面显示出好改编的CSSL能被用作基因材料,并且作为材料在引起节目的泰国rainfed低地米饭改进干旱忍耐把基因位于\O下面干旱忍耐。