简介：Thepaperproposesanovelalgorithmtogettheencryptionmatrix.Firstly,achaoticsequencegeneratedbyChebyshevchaoticneuralnetworksisconvertedintoaseriesoflow-orderintegermatricesfromwhichavailableencryptionmatricesareselected.Then,ahigherorderencryptionmatrixrelatingrealworldapplicationisconstructedbymeansoftensorproductionmethodbasedonselectedencryptionmatrices.Theresultsshowthattheproposedalgorithmcanproducea'one-timepadcipher'encryptionmatrixwithhighsecurity;andtheencryptionresultshavegoodchaosandauto-correlationwiththenaturalfrequencyoftheplaintextbeinghiddenandhomogenized.

简介：

简介：1.0Mt/a暗淡乙醇醚单位的构造由JiutaiEnergy(Zhangjiagang)技术同伴拥有了，在第三个1.0-Mt/a-classDME单位由跟随二的构造的这个公司构造了的Zhangjiagangcity.Thisis在4月27,2007日发动的Ltd.was在内部蒙古并且在广州投射，并且第三个工程委托将为在YangtzeRiver三角洲加强这个公司的竞争优势起一个重要战略作用。

简介：AccordingtothesourcefromtheConstructionDepartmentofMinistryofEnergy,itisplannedtoaddinnationwidethisyear55mediumandlargesizedpowergeneratingsetstotaled

简介：

简介：

简介：

简介：InordertostudytheconstructionofecologicalcivilizationinChina,thispaperdiscussestheframework,developmentmodelandstrategyofecologicalcivilizationconstructionmultipledimensions.ItbelievesthatthepathanddirectionofecologicalcivilizationdevelopmentinChinadependonmultipledimensionsofdevelopmentandtheirinteractions.Fromtheperspectiveofmultipledevelopment,itanalyzesorganicunificationoftripledevelopmentlogic–regionaldevelopment,phaseddevelopmentandinclusivedevelopment-tosteadilypromotetheconstructionofecologicalcivilizationinChina,andthenthepaperputsforwardcountermeasuresandsuggestionsonacceleratingtheconstructionanddevelopmentofecologicalcivilization.

简介：

简介：AccordingaleadingpersonofChinaInstituteofAtomicEnergy(CIAE),thefirstexperimentalfastneutronreactorunderconstructionwiththermalpowerof65MWisproceedingsmoothly,andtheconstructiondesignhasbeenfinishedcompletely.ItisexpectedthatthereactorwillbefinishedandgocriticalinSeptember2009,andgenerateelectricityontrialinSeptember2010.

简介：InNovember2007theconstructionof600kt/aPTAunitwaskickedoffatHanbang(Jiangyin)PetrochemicalCo.,Ltd.Theinvestmentforthisunittotalsaround2.77billionRMB,andis

简介：

简介：AmajorissueinChina'spresentecologicaleconomicconstructionistobuildtheecologicalprovince.InMarchof1999,HainanProvinceofChinaproposedsettingupthefirstecologicalprovinceandwasaccreditedbytheBureauofStateEnvironmentProtectionasthepilotproject.Uptonowforonlyfouryears,Hainan,Jilin,Heilongjiang,Fujian,Zhejiang,Shandong,Anhui,Jiangsu,eightprovincesinthewholecountry,havinglaunchedtheestablishmentoftheecologicalprovince.Meanwhile,theprovincessuchasShaanxi,Hebei,

简介：

简介：

简介：大留下来电缆线的桥的构造时期长，并且结构变丑是复杂的。任何错误将潜在地在建设期间影响伸臂排列和内部力量。为了在建设期间并且确切保证安全，决定伸臂排列，当上层建筑的构造开始时，动态变丑监视立即被需要。这篇论文瞄准变丑在Sutong桥构造期间监视的要求，并且基于监视系统的遥远的即时动态几何变丑介绍实现和GPS和georobot的观察计划，然后研究处理方法的数据并且枚举一些应用程序成就。长期的操作在Sutong桥构造期间显示系统稳定地运行，结果是可靠的。

简介：ThislettergivesarandomconstructionforLowDensityParityCheck(LDPC)codes,whichusesaniterativealgorithmtoavoidshortcyclesintheTannergraph.TheconstructionmethodhasgreatflexiblechoiceinLDPCcode'sparametersincludingcodelength,coderate,theleastgirthofthegraph,theweightofcolumnandrowintheparitycheckmatrix.ThemethodcanbeappliedtotheirregularLDPCcodesandstrictregularLDPCcodes.Systemiccodeshavemanyapplicationsindigitalcommunication,sothisletterproposesaconstructionofthegeneratormatrixofsystemicLDPCcodesfromtheparitycheckmatrix.Simulationsshowthatthemethodperformswellwithiterativedecoding.

简介：

简介：

简介：TheexcitingsourceoftheactivesourcerepeatedmonitoringislocatedintheXiliushuiReservoirinZhangye,GansuProvince.ThesystembeganoperatingnormallyonJuly9,2015,andwehadcompletedaperiodof40daysofcontinuousexcitationexperimentbeforeNovember10,2015.Ourresultsrevealthattheairgunsourcehasgoodconsistencyandrepeatability,andthedetectivesystemofactivesourcecanrecordsignalclearly.Theconstructionofactivesourcerepeatedexplorationprojectshasachievedsomeresults,whichcanprovidevaluableexperiencefortheresearchofactivesourcerepeatedexploration.TheobservationdataweobtainedmakesitpossibletofollowthetemporalandspatialvariationsofthedeepstructureoftheQilianMountainareas.