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    30 September 2010, Volume 26 Issue 5
    ASurveyofRemovalProcessofGeCl4HydrogencontainingImpuritie
    LU Yu-Fei-1, LEI  Ting-1, WANG Shao-Long-2
    2010, 26(5):  1-5.  doi:10.3969/j.issn.1009-0479.2010.05.001
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    TwokeytechnologiesareneededtoprepareopticalfiberwithGeCl4.Oneistoremovetheme tallicimpurityinGeCl4 ,theotheristoremovethehydrogenimpuritiescontainedinGeCl4 .Theformer onehasbeendevelopedwithmaturetechnologyandcompleteequipmentbothathomeandabroad.The latterone,however,isatechnicalprobleminpreparingopticalfiberwithGeCl4 .Atpresent,welackthe technologyandmanufacturesofhighqualityfiberproductionathome.MostofGeCl4 productsusedinfi berareimportedfromabroad.Therefore,itisofgreatimportancetocarryoutresearchonremovinghy drogenimpuritiesinGeCl4 hattobreakthetechnologyblockadefromothercountriesandtoenhanceeco nomicefficiencyandinternationalcompetitiveness.Relevantresearchesweredoneaccordingtotestswith highpurityGeCl4 anddistillationtechnics,soastoprovidetechnicalreferenceandsupporttothetech nology.TheresultshowsthatcommondistillationprocessGeCl4 purificationcanwellremovehydrogen impuritiesinGeCl4 .
    EffectofGrindingFinenessonIlmeniteFloatation
    ZHANG Xiao-Lin, XU  Xiang, WEI Zhi-Cong
    2010, 26(5):  6-9.  doi:10.3969/j.issn.1009-0479.2010.05.002
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    Grindingfinenesshasagreateffectonilmenitefloatation.Appropriategrindingfinenesscan notonlyguaranteegoodmonomerdissociation,butalsoavoidexcessivegrinding.Experimentalstudies haveshownthat,togivetheconsiderationtotheconcentrategradeandrecoveryoforeused,grinding finenesswith85% oreshareisthebestwhenmeasuredwithstandardof-0074mm.
    TheFeasibilityStudyofIncreasingtheRecoveryRateofOreDressinginAPhosphateMine
    PENG Fen-Lan, CHEN  Bin, ZHOU Xiao-Si, YANG Jia-Wen
    2010, 26(5):  10-13.  doi:10.3969/j.issn.1009-0479.2010.05.003
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    Throughtestsandstudiesonthegranularitycompositionofcrubtailingsinaphosphatemine, themeasureofsecondgradedeslimingworkwasputforwardtoincreasetherecoveryrateofphosphate scrubbingprocess.Withthismeasure,dailyyieldofpowderconcentrates,whoseP2O5 isabove25%, reaches24714t,bringnetprofitofRMB5475229.
    ApplicationofChamberBlastinginEtouchangIronOr
    ZHU Hong-De
    2010, 26(5):  14-17.  doi:10.3969/j.issn.1009-0479.2010.05.004
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    ReasonsforapplyingchamberblastinginopenpitextensioninEtouchangIronOrewasex pounded,andsuchmattersasblastingparameters,calculationofchamberblastingparameters,require mentsforslopesafetyandlayoutofleadandpowderchamber,aswellaspowderchamberblockandiniti ationnetworkwereintroduced.Theblastingvaliditywasevaluated.
    OnImageBackgroundAdaptiveSegmentationTechnology
    WANG Hai-Xing
    2010, 26(5):  18-22.  doi:10.3969/j.issn.1009-0479.2010.05.005
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    Abstract:Animportantstepofimageprocessingbeforeitsidentificationandclassificationistodoback groundsegmentation.Itishelpfultoidentifytheobjectandtheimagebackground.Thresholdalgorithmis commonlyusedinimagesegmentation,buthowtosetthethresholdtofulfillimagebackgroundadaptive segmentationisaproblem.Thepaperputforwardamethodbyusingimagesegmentationtechnologyand analyzingtheweakandstrongpointsofdifferentalgorithms.Bythisalgorithm,thethresholdcanbese lectedautomatically,anditisidealfordifferentcircumstances.
    ApplicationofUEDITGPSandExcelinDevelopingGPSBaselineCheckWorksheetProgram
    WU Yu-Bin
    2010, 26(5):  23-27.  doi:10.3969/j.issn.1009-0479.2010.05.006
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    BaselinecheckofGPSobservationresultsisanimportantparttoensureoutsideobservation qualityandadjustmentaccuracy.Therefore,checkandevaluationmustbedoneonthequalityofobser vationdataaftertheobservation,sothatfailedresultscanbedetectedintimeandmeasuresasdeleting andre-testingcanbetakenaccordingly.ThepresentGPSbaselinesolutionsoftware,however,cannot providebaselinesolutioncheckstepsmeetingtheneedsofactualproject,causingdifficultiestoGPS baselinecheck.ThepaperexpoundedwaystouseUEDITprofessionaltexteditorandMicrosoftExcel worksheettopreparebaselinesolutioncheckingprocedures,aimingatimprovingGPSdataprocessingca pacityinactualproject.
    MathematicalModelin3GBillingSystem ofTelecommunications
    WANG  Yue, YANG  Jiao
    2010, 26(5):  27-31.  doi:10.3969/j.issn.1009-0479.2010.05.007
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    Withthecomingof3Gera,thetraditionaltelecombillingsystemdoesntadapttothesitua tion.Thepaperproposedimprovementonthetraditionalbillingsystemandsuggestedanewlogicaldesign onthedatamodelingandcoredomain.Aftertesting,CPUoccupancyratewaslowintheimprovedbilling system.OnthebasicoperationofSelect,Insert,UpdateandDeletedatabase,theaveragespeedwas10 timesfasterthantheoriginalone,andtheothercomprehensiveperformanceindicatorsweresuperior.
    DocumentsOnlineDraftingandTraceRemainingBasedonC#andDSOFrame
    TIAN Ya-Li
    2010, 26(5):  32-35.  doi:10.3969/j.issn.1009-0479.2010.05.008
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    WaysofutilizingDSOFramerActiveXintheC#developmentenvironmenttoachievethefunc tionofinvokingtemplatefile,onlinedraftingandtraceremainingwasintroduced.Thismethodiseasyto operateandapplicableespeciallytothedevelopmentofdocumentsonlinetransferringandapproving,or tocreationasimpleFileTemplateeditor.
    DesignandImplementationofAccountingComputerizationOnlineAnsweringSystem
    ZHAO  Na
    2010, 26(5):  36-42.  doi:10.3969/j.issn.1009-0479.2010.05.009
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    BasedonASPNET,WebapplicationsofMicrosoftOfficeAccessandinternet,theonlinean sweringsystemofAccountingComputerizationansweronlinesystemservesmainlytheteachingandinter actionbetweenteachersandstudents.UsingtechnologydevelopmentasADONET,CSS,databaseand HTML,thesystemisnowinnormaloperationonthesiteofAccountingComputerizationfinecoursein KunmingMetallurgyCollege.
    DevelopmentandImplementationofNetworkCourse“HighlevelLanguageProgramming”
    DING Hai-Yan-1, BAI Meng-Yao-2
    2010, 26(5):  43-47.  doi:10.3969/j.issn.1009-0479.2010.05.01
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    Networkcourseisanimportantdirectionofmoderneducationinnovationandisusedwidelyin highschoolsincreasingly.Developmentpatternsofnetworkcoursewereintroducedbasedondevelopment andimplementationof“HighlevelLanguageProgramming”.Developmentschemewasexpatiatedfrom theperspectiveofsoftwareengineeringandtheimplementationeffectwasanalyzed.Referenceswerepro videdtorealizeremoteteachingandnetworkteachingmodes.
    PracticeofPrecisionCompensationofCNCLatheZaxi
    DONG Wei-Xin, ZENG Xie-Hua
    2010, 26(5):  48-51.  doi:10.3969/j.issn.1009-0479.2010.05.011
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    Withfineprecision,stiffnessandflexibilityinprocessing,CNClatheiswidelyused.Because oflimitationsinmanufacturingandtestingtechnology,precisionofCNClathealsodependsoninstallation andsoftwarecompensation.MethodsofZaxissoftwareprecisioncompensationwerediscussed,andgood resultswereachievedthroughcombinationoftheoryandpractice.Themethodofferscertainreferenceval uetothepersonnelinvolvedinmechanicalrepairingandmaintenance.
    DesignofASimpleChipTesterwithChineseInterfac
    JIN Jian-Hui, HE  Chun
    2010, 26(5):  52-56.  doi:10.3969/j.issn.1009-0479.2010.05.012
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    Indigitalcircuitexperiments,basicseriesofdigitalintegratedcircuitschipsareextensively used.Qualityandtypeofchipsshouldbetestedbeforeuse.Engineeringspecifictestersinthemarket areexpensiveandcanttestmanydigitalchipsinlaboratory.Integratingadvantagesanddisadvantagesof variousexistingtypesoftestersandadoptingSTC89C516RD +SCMandChineseLCDdisplay,theau thorsdesignedasimpledigitaltestersystem,whichcouldidentifythequalityandtypeoflogicchipscom monlyusedindigitalelectronictechnologyexperiments.Moreover,itischeapandcanachievetheinter actionofChineselanguageinterface.
    InfluenceofFibreContentonGFRCMechanicalPropertie
    DAI Ruo-Yu-1, CHENG He-Ming-2, XU  Hao-3
    2010, 26(5):  57-60.  doi:10.3969/j.issn.1009-0479.2010.05.013
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    Fibercontentisakeyfactoraffectingthemechanicalpropertiesofglassfibrereinforcedcon crete.Throughexperiments,suchmechanicalpropertiesofGFRC ascompressivestrength,tensile strength,elasticmodulusandPoissonsratioweremeasuredwithdifferentfibrecontent.Thepaperstud iedtheimpactoffibrecontentonthesemechanicalproperties,andsuggestedthereasonablecontentrange ofglassfibre.Itprovidessomevaluableexperimentalresultsforthewideuseofthisnewmaterial.
    FiniteElementAnalysisofSeismicResponsesofAConcreteArchDam
    QIAN Shan-Guang-1, DU Shao-Tang-1, LI  Yun-2, YAO  Ji-3
    2010, 26(5):  61-63.  doi:10.3969/j.issn.1009-0479.2010.05.014
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    Softwarewasusedtobuildathreedimensionalfiniteelementmodelofanarchdam,andthe vibrationcharacteristicsoftheconcretearchdaminbothemptyandfullreservoirswereanalyzed.The calculationofthedamsresponseinseismicconditionadoptedmodalanalysisresponsespectrummethod. Theresultshowedthatthedisplacementofthedamsdesignwassmall,andthedistributionofstresswas rational.Themethodprovidedareliablebaseforengineeringdesign.
    InfluenceofMeshDensityandModelRangeonCalculationAccuracyofStrengthReductionFEM
    PEI Li-Jian, SU Lian-Ping, ZHANG  Wei, HU  Ying, ZHAO  Xia
    2010, 26(5):  64-68.  doi:10.3969/j.issn.1009-0479.2010.05.015
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    InfluenceofmeshdensityandmodelrangeoncalculationaccuracyofstrengthreductionFEM wasdiscussedbasedonsmalldeformationsupposition.Theresearchindicatedthatmeshdensityoffi niteelementmeshmodelhadremarkableinfluenceonthesafetyfactor.Thegapoftheresultbetween differentdegreesofmeshdensitymodelmayreachabove5%,soitisnecessarytousemeshmodelre finedenoughtoimprovethecalculationaccuracy.Modelboundaryhasverysmallinfluenceoncalcula tionaccuracy.Onlythemodelboundarywiderthanpotentialslickensideareaisneededincalculation. Themethodmakesthemodelsmaller,thussimplifiesthecalculationandimprovesthecomputationalef ficiency.
    ResearchonandApplicationofDecisionmakingFactorsinHighwayProgram inMountainMines
    LIU Yu-Ying-1, LI Zheng-Qiang-2, YANG  Ping-1, YAN Chuan-Xiong-1
    2010, 26(5):  69-74.  doi:10.3969/j.issn.1009-0479.2010.05.01
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    Onthebasisofanalysisofroadcharacteristics,specifictravelobjectsinmountainminesand problemsonprogramselectiondecisionfactoroftraditionalminingroads,thepaperproposedprinciplesof selectingdecisionmakingfactorintheprogramandanalyzedtheevaluationsystem,whichlaidthefoun dationforpromotingasustainable,rationalandscientificevaluationsystemofdecisionmakingfactorin dexinhighwayprograminmountainmines.
    OnNewMineDevelopmentwithConsiderationofEconomicBenefitsandEnvironmentalProtection
    QIU Bao-Qing
    2010, 26(5):  75-79.  doi:10.3969/j.issn.1009-0479.2010.05.01
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    Developmentofmineresourcesfacesproblemsofdifficultmining,lowgradeoreandhighcostof environmentalprotection.Explorationsweredoneontheoveralllayoutofalargelowgradecopperore. Withapplicationofnewtechnologies,newprocessesandnewequipment,abreakthroughwasmadeinboth environmentalprotectionandeconomicbenefits.Themethodsolvednotonlytheproblemofenvironmental protectioninminedevelopment,butalsotheproblemofeconomicbenefitsoflowgradeoremining.
    OnExtractionofGeneralFlavonoidsfromEcliptaAlbawithPropylAlcoholandAmmoniumSulfateAqueousTwophaseSeparationandUltrasonicIntegratio
    ZHOU  Qing-1, JIANG  Hao-1, GAO Yun-Tao-2, ZHANG Ling-Ling-2
    2010, 26(5):  80-83.  doi:10.3969/j.issn.1009-0479.2010.05.018
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    Ultrasonicextractiontechnology,integratedwithpropylalcoholandammoniumsulfateaqueous twophaseseparationwasusedtoextractgeneralflavonoidsfromEcliptaalba.Theoptimumextraction conditionsfromsinglefactorexperimentwere:theamountofammoniumsulfatewas12% (W %);pro pylalcoholoccupied50%;massandliquidratiowas1∶30andultrasonicextractionwas30min.Then, theaverageyieldofgeneralflavonoidswas422%,whichwasbetterthanthatfromheatingrefluxex traction.
    OnEquilibriaStabilityofaRatiodependentHollingIIITypePredatorpreySystem
    ZHOU  Ning-1, LU  Xia-2
    2010, 26(5):  84-90.  doi:10.3969/j.issn.1009-0479.2010.05.019
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    AratiodependentHollingtypeIIIpredatorpreysystemwasstudied.Thequalitativebehavior ofthesystemattheoriginintheinteriorofthefirstquadrantisgiven,andvarietiesoftopologiesexisting aroundtheorigin,includingparabolicorbits,ellipticorbits,hyperbolicorbits,andanycombinationof themweredescribed.
    ExplorationinGermanActionorientedTeachingMethodinVocationalEducationforLogisticsTeaching
    WANG Deng-Qing-1, LIU  Hong-2
    2010, 26(5):  91-96.  doi:10.3969/j.issn.1009-0479.2010.05.021
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    ActionorientedteachingmethodisthedirectionofGermanvocationaleducationandevenof theworld.TheintroductionoftheactionorientedteachingmethodsintotheteachingpracticeofLogistics SystemPlanningandDesignhasobtainedgoodteachingresultsandplayedapositiveroleindeveloping thestudents′selfdirectedstudyingandprofessionalability.However,intheprocessofpracticingtheac tionorientedteachingmethod,therearestillmanyproblemsthatworthourseriousconsiderationandneed tobeovercomeinthefuture,sothatwecanfindawayofvocationaleducationinconformitywithitschar acteristics.
    OnTeachingandManagementofInternshipsinConstructionEngineeringTechnology
    HU  Ying, DU Shao-Tang, YANG  Xiang, LI Zhong-Ze
    2010, 26(5):  97-100.  doi:10.3969/j.issn.1009-0479.2010.05.022
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    Internshipisanimportantwaytoachievethetraininggoalofworkjobcombinationinhigher vocationaleducation.Focusingoncharacteristicsandproblemsexistedinthetrainingmodesandintern shipsofConstructionEngineering,thepaperstudiedtheteachingandmanagementofinternshipsandex ploredthemanagementmechanismtoestablishinternshipevaluationsystemandimprovethequalityofin ternship.