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Table of Content
30 September 2010, Volume 26 Issue 5
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ASurveyofRemovalProcessofGeCl4HydrogencontainingImpuritie
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 highpurityGeCl4 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-0074mm.
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%, reaches24714t,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,thetraditionaltelecombillingsystemdoesntadapttothesitua tion.Thepaperproposedimprovementonthetraditionalbillingsystemandsuggestedanewlogicaldesign onthedatamodelingandcoredomain.Aftertesting,CPUoccupancyratewaslowintheimprovedbilling system.OnthebasicoperationofSelect,Insert,UpdateandDeletedatabase,theaveragespeedwas10 timesfasterthantheoriginalone,andtheothercomprehensiveperformanceindicatorsweresuperior.
DocumentsOnlineDraftingandTraceRemainingBasedonC#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,onlinedraftingandtraceremainingwasintroduced.Thismethodiseasyto operateandapplicableespeciallytothedevelopmentofdocumentsonlinetransferringandapproving,or tocreationasimpleFileTemplateeditor.
DesignandImplementationofAccountingComputerizationOnlineAnsweringSystem
ZHAO Na
2010, 26(5): 36-42. doi:
10.3969/j.issn.1009-0479.2010.05.009
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BasedonASPNET,WebapplicationsofMicrosoftOfficeAccessandinternet,theonlinean sweringsystemofAccountingComputerizationansweronlinesystemservesmainlytheteachingandinter actionbetweenteachersandstudents.UsingtechnologydevelopmentasADONET,CSS,databaseand HTML,thesystemisnowinnormaloperationonthesiteofAccountingComputerizationfinecoursein KunmingMetallurgyCollege.
DevelopmentandImplementationofNetworkCourse“HighlevelLanguageProgramming”
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“HighlevelLanguageProgramming”.Developmentschemewasexpatiatedfrom theperspectiveofsoftwareengineeringandtheimplementationeffectwasanalyzed.Referenceswerepro videdtorealizeremoteteachingandnetworkteachingmodes.
PracticeofPrecisionCompensationofCNCLatheZaxi
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.MethodsofZaxissoftwareprecisioncompensationwerediscussed,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.Engineeringspecifictestersinthemarket areexpensiveandcanttestmanydigitalchipsinlaboratory.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,elasticmodulusandPoissonsratioweremeasuredwithdifferentfibrecontent.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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Softwarewasusedtobuildathreedimensionalfiniteelementmodelofanarchdam,andthe vibrationcharacteristicsoftheconcretearchdaminbothemptyandfullreservoirswereanalyzed.The calculationofthedamsresponseinseismicconditionadoptedmodalanalysisresponsespectrummethod. Theresultshowedthatthedisplacementofthedamsdesignwassmall,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 niteelementmeshmodelhadremarkableinfluenceonthesafetyfactor.Thegapoftheresultbetween differentdegreesofmeshdensitymodelmayreachabove5%,soitisnecessarytousemeshmodelre finedenoughtoimprovethecalculationaccuracy.Modelboundaryhasverysmallinfluenceoncalcula tionaccuracy.Onlythemodelboundarywiderthanpotentialslickensideareaisneededincalculation. Themethodmakesthemodelsmaller,thussimplifiesthecalculationandimprovesthecomputationalef ficiency.
ResearchonandApplicationofDecisionmakingFactorsinHighwayProgram 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 selectingdecisionmakingfactorintheprogramandanalyzedtheevaluationsystem,whichlaidthefoun dationforpromotingasustainable,rationalandscientificevaluationsystemofdecisionmakingfactorin 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,lowgradeoreandhighcostof environmentalprotection.Explorationsweredoneontheoveralllayoutofalargelowgradecopperore. Withapplicationofnewtechnologies,newprocessesandnewequipment,abreakthroughwasmadeinboth environmentalprotectionandeconomicbenefits.Themethodsolvednotonlytheproblemofenvironmental protectioninminedevelopment,butalsotheproblemofeconomicbenefitsoflowgradeoremining.
OnExtractionofGeneralFlavonoidsfromEcliptaAlbawithPropylAlcoholandAmmoniumSulfateAqueousTwophaseSeparationandUltrasonicIntegratio
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,integratedwithpropylalcoholandammoniumsulfateaqueous twophaseseparationwasusedtoextractgeneralflavonoidsfromEcliptaalba.Theoptimumextraction conditionsfromsinglefactorexperimentwere:theamountofammoniumsulfatewas12% (W %);pro pylalcoholoccupied50%;massandliquidratiowas1∶30andultrasonicextractionwas30min.Then, theaverageyieldofgeneralflavonoidswas422%,whichwasbetterthanthatfromheatingrefluxex traction.
OnEquilibriaStabilityofaRatiodependentHollingIIITypePredatorpreySystem
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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AratiodependentHollingtypeIIIpredatorpreysystemwasstudied.Thequalitativebehavior ofthesystemattheoriginintheinteriorofthefirstquadrantisgiven,andvarietiesoftopologiesexisting aroundtheorigin,includingparabolicorbits,ellipticorbits,hyperbolicorbits,andanycombinationof themweredescribed.
ExplorationinGermanActionorientedTeachingMethodinVocationalEducationforLogisticsTeaching
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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ActionorientedteachingmethodisthedirectionofGermanvocationaleducationandevenof theworld.TheintroductionoftheactionorientedteachingmethodsintotheteachingpracticeofLogistics SystemPlanningandDesignhasobtainedgoodteachingresultsandplayedapositiveroleindeveloping thestudents′selfdirectedstudyingandprofessionalability.However,intheprocessofpracticingtheac tionorientedteachingmethod,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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Internshipisanimportantwaytoachievethetraininggoalofworkjobcombinationinhigher vocationaleducation.Focusingoncharacteristicsandproblemsexistedinthetrainingmodesandintern shipsofConstructionEngineering,thepaperstudiedtheteachingandmanagementofinternshipsandex ploredthemanagementmechanismtoestablishinternshipevaluationsystemandimprovethequalityofin ternship.
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