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简介：“农历二月二，龙抬头，这一天，沉睡了一个冬天的龙王会醒来，重新飞上天去主持刮风下雨的工作。”妈妈说，“这一天还有一个习俗，就是要理发。”好的，反正我的头发也有点长了，

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简介：ZhuangMoshi,afamousmasterofcalligraphyandsealcuttinginmodernChina,wasbornintoafamilyofsealcutters,andhisgivenname,Moshi,comesoutfromthisfamilytraditionandmeans"inkandstone,"thebasictoolsusedforcalligraphyandsealcutting.ZhuangMoshi’ssealsencompassboththeantiquityoftraditionalChineseartandthemodernityofcontemporaryart,andhaveaveryimpressivevisualimpact.

简介：CRTCornercuttingtubeisconsideredasadefinitiverejectandwillbesenttoreclaimatalltimes.Itcausedlotsofmaterialloss.Inthispaper,anoveltechnologyusedtosaveCRTscornercuttingtubeispresentedfirstly.AsetofrepairsystemhasbeensuccessfullydevelopedtorepairCRTscornercuttingtube.Then,theprocesstechnologyforcornercuttingrepairhasbeenexcogitatedbyempiricalstudies.Finally,thecorrelativeperformancesofrepairedtubeareevaluated.Theexperimentalresultsshowthatthequalityofrepairedtubehasnodifferencewiththatofnormalproduct.Therepairyieldhasreachedabove97percent.Thisnewtechnologyhascontributedtoimprovingtheproductionyield,reducingthematerialconsumptionanddecreasingthecostofcolorCRTproduction.

简介：实验的完整的因素的设计被开发以便调查喷气压力的效果，粗糙的混合率，切喂，并且在三个反应变量之上的板厚度，表面切完成穿地区，有条纹或刻痕之状态的百分比比例免费区域，和最大的宽度切。十六个实验的集合在每下列二可锻的材料上被执行：AISI4340(高力量低合金钢，变硬到49HRc)并且铝2219。变化(ANOVA)的分析在试验性的数据上被执行以便在性能措施上决定不同参数的效果的意义。它被发现那切喂并且厚度是高度有影响的参数，当粗糙的混合时，率仅仅在表面粗糙之上是有影响的。强壮的相互作用在喷气压力和细工品材料之间被发现。多标准数字优化被执行以便同时最大化/最小化表演措施的不同联合。

简介：Thesystemdynamicsofturningprocessescanbedescribedbyadelaydiferentialequation.Howtoimprovethestabilityandsuppressthevibrationofcuttingisofaninterestingtopic.Inthispaper,amultipletime-delaycontrollerisdevelopedbasedondiscreteoptimalcontrolmethodfortheturningvibrationscontrol.Numericalsimulationsarecarriedouttoverifytheefciencyofthecontroller.Resultsindicatethedesignedcontrollercansuppressthecuttingvibrationefcientlyandimprovethestabilityofthecuttingprocesses.Theinfluenceofdesignedtime-delayandsamplingtimeonthecontrolperformanceisalsodiscussed.

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简介：Venousmalformations(VMs)areproblematiccommonvascularmalformationsthatarechallengingevenforexperiencedphysicians.Severaltreatmentsareavailableincludingsclerotherapy,surgery,laserorcombinationsoftheseprocedures.Asnoneoftheseisspecific,westillneedtherapiesthatwouldallowtocurethesepatientswithoutcomplications.Hopefully,theunravelingofthecausativedefectsofVMswillgiveusnewtoolsforthemanagementofthisdifficultcondition.

简介：Aftergivingasuitablemodelforthecuttingstripsproblem,wepresentabranch-and-pricealgorithmforitbycombiningthecolumngenerationtechniqueandthebranch-and-houndmethodwithLPrelaxations.Sometheoreticalissuesandimplementationdetailsaboutthealgorithmarediscussed,includingthesolutionofthepricingsubproblem,thequalityofLPrelaxations,thebranchingschemeaswellasthecolumnmanagement.Finally,preliminarycomputarionalexperienceisreported.

简介：ＣＵＴＴＩＮＧＤＯＷＮＯＲＣＨＡＲＤＳＩＮＡＳＳＹＲＩＡＮＲＯＹＡＬＩＮＳＣＲＩＰＴＩＯＮＳ—ＴＨＥＨＩＳＴＯＲＩＯＧＲＡＰＨＩＣＡＳＰＥＣＴ①Ｂ．Ｏｄｅｄ，ＵｎｉｖｅｒｓｉｔｙｏｆＨａｉｆａＣｕｔｉｎｇｄｏｗｎｔｒｅｓｉｎｇａｒｄｅｎｓ（ｋｉｒ＾ａ...

简介：种植园的不同类型在Baishilazi国家自然保护区被观察，辽宁省，为34一。环境优秀ofAbiesholophylla种植园在不同切的系统下面被分析。包括的分析因素玷污侵蚀率，崽的humification学位，和水抓住能力。清楚的切的区域的表面土壤损失是19000t?桴?慢吗？

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简介：Source:GlobalTimesChina'sindustrywatchdogrecentlydeniedmediareportsclaimingthatthenationislimitingproductionofrare-earthmineralsinthesecondhalfoftheyear,anditsaidthatthecountry'splannedrareearthoutputin2018hadbeenraisedratherthanreduced.Expertssaidthatasareliablesupplier,ChinawillnottrytocontrolthemarketbyreducingproductionChinaplanstoraiserare-earthminingoutputquotafor2018from105,000tonsto120,000tonsandmeltingquotaforthefullyearfrom100,000tonsto115,000tons,theMinistryofIndustryandInformationTechnology(MIIT)said.

简介：现在的工作集中于微观结构和免费切的黄磷的机械性质上的空气晒黑的退火的影响合金。合金退火在象空气，真空和氮那样的三种退火的空气被进行。在退火以后，在recystallized谷物尺寸和铅粒子尺寸的可辨别的差别没与不同退火的空气被显得。合金的张力的力量在空中退火了或氮空气比那些的在真空空气退火高。在真空空气在合金的情况中退火了，机械力量被锌的蒸发减少。在在氮并且在空气空气退火的情况中，铅出汗被发生。然而，铅的反的分离被氧化铜层在表面上压制在空中退火了。这氧化铜层在制造过程期间导致收益的减少。因此，在氮空气合金退火以机械力量和收益是有利的。

简介：借助于Tersoff和莫尔斯潜力，三维的分子的动力学模拟被执行显微镜学切在硅上学习原子力量单音的水晶表面。内部在细工品和大头针工具和细工品的原子之间的原子力量自己被计算。螺丝钉脱臼被介绍进细工品Si。脱臼的运动不在切处理的原子力量显微镜学期间发生，这被发现。模拟结果证明shear强调对脱臼起作用在Si的收益力量下面是远的。

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简介：Thispaperproposesapracticalalgorithmsofplanecutting,stereoclippingandarbitrarycuttingfor3Dsurfacemodelreconstructedfrommedicalimages.Inplanecuttingandstereoclippingalgorithms,the3Dmodeliscutbyplaneorpolyhedron.Listsofedgeandvertexineverycutplaneareestablished.Fromtheseliststheboundarycontoursarecreatedandtheirrelationshipofembraceisascertained.TheregionclosedbythecontoursistriangulatedusingDelaunaytriangulationalgorithm.Arbitrarycuttingoperationcreatescuttingcurveinteractively.Thecutmodelstillmaintainsitscorrecttopologystructure.Withtheseoperations,tissuesinsidecanbeobservedeasilyanditcanaiddoctorstodiagnose.Themethodscanalsobeusedinsurgeryplanningofradiotherapy.

简介：Thispaperpresentsaconstitutiveframeworkforfiniteelementanalysisofthetruckbeamendcuttingprocess.Forthispurpose,afinitestrainanisotropicelasto-plasticmodel,whichtakesnonlinearkinematicandisotropichardeningintoaccount,ispresented.Threefactorsareinvestigatedtodeterminetheeffectoncuttingquality:radiusofcuttingtools,strengthofmaterialsandrelativeclearanceincutting.Therecommendationsmadehereinarebasedonthesimulationresults.

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