EMME／2在公交出行建模中的应用

通过EMME/2批处理的数据很容易进行修改,借助EMME/2可以应用宏（Macro）来使操作集成,灵活地改变模型的公式。济南公交建模在使用EMME/2完成交通分配时,对模型进行了标定和验证,它是审查模型的合理性和准确性的关键。将模型中的路段公交客流量及站点上下客量与调查数据相比较,具有较高的准确性。     

Study on Bush Tree Growth in XLPE Using 3D PD Patterns

Exploitation of equipment with cross linked polyethylene (XLPE) insulationrequires its condition monitoring and diagnostic. Traditionally diagnostics of insulation is carriedout by means of partial discharge detection. However, such identification of a defect, forexample, void, inclusion or treeing, does not say about its danger from a point of view of fullinsulation gap breakdown and insulation construction failure. For this purpose a 29 kV CN-CVcable sample is studied. The experiment is based on research for determination of thedependencies between PD characteristics in XLPE upon time and three dimension PD patternsof corresponding treeing. The investigations were carried out by means of electricalmeasurement of PD current and simultaneous optical recording of treeing image. The needle-plane electrode is applied as the electrode. As a result,-q-n PD patterns which are used asthe bases to bush tree initialization and growth can be obtained. Test results show that PDpattern recognition can be applied as a powerful tool for recognizing electrical tree initializationand growth. This can make a good basis for on-line condition monitoring of high voltage powercable.     

CLONING AND EXPRESSION OF A GENE MEDIATING γ-RADIATION-INDUCED APOPTOSIS IN HL-60 CELLS

Apoptosis,orprogrammedcelldeath(PCD),isanintricatelyregulatedprocess">.Geneticstud-iesofapoptosisinCaenorhabditiseleganshavei-dentifiedced-3andced-4asproapoptoticgenesandced-9asanantiapoptoticgene"=-Severalmam-malianhomologuesofced-3,ced-4andced-9havebeenidentified.Recentstudiesindicatethatthefundamentalapoptosismachinery,whichconsistsofdistincteffectors,inhibitorsandinitiators,hasbeenconservedthroughoutevolution.Thekeyapoptosiseffectorsinmammalsareafamilyofcys-teine-containing,aspartate-spe…     

对建立船舶营运成本目标管理系统的设想

在面临入世之际,我国的航运企业加强船舶营运成本控制工作显得尤为重要和迫切.针对我国航运企业船舶营运成本的核算方法,结合我国航运企业船舶营运成本控制的现状和存在问题,建立一个船舶营运成本目标管理系统,对船舶营运成本进行事前预测、事中审核、事后分析,且使其各环节环环相扣,形成一个完善而有效的成本控制体系,才能增加企业经济效益,提高企业经营管理水平.     

THE DIAGNOSIS OF MAGNETIC RESONANCE IMAGING FOR SPINAL CAVERNOUS ANGIOMAS

Ｓｐｉｎａｌｃａｖｅｒｎｏｕｓａｎｇｉｏｍａｉｓａｋｉｎｄｏｆｖａｓｃｕｌａｒｄｅｆｏｒｍｉｔｙｏｆｓｐｉｎａｌｃｏｒｄ .Ｓｏｆａｒ ,ｉｔｉｓｕｓｕａｌｌｙｒｅｇａｒｄｅｄａｓｔｈｅｏｃｃｕｒｒｅｎｃｅａｔｃａｐｉｌｌａｒｙｌｅｖｅｌ[1,2 ] .Ｗｉｔｈｔｈｅｄｅ ｖｅｌｏｐｍｅｎｔｏｆｍａｇｎｅｔｉｃｒｅｓｏｎａｎｃｅｉｍａｇｉｎｇ (ＭＲＩ)ｔｅｃｈｎｉｑｕｅ,ｍｏｒｅａｎｄｍｏｒｅｃａｓｅｓｏｆｓｐｉｎａｌｃａｖｅｒｎｏｕｓａｎｇｉｏｍａｓｗｉｌｌｂｅｆｏｕｎｄ .Ｉｎｔｈｉｓｓｔｕｄｙ ,3ｃａｓｅｓ…     

车用质子交换膜燃料电池系统技术现状

详细介绍了车用质子交换膜燃料电池(PEMFC)系统的组成,描述了目前国内外PEMFC系统的技术状态及技术指标.     

江阴长江大桥钢箱梁疲劳应力监测及寿命分析

针对江阴长江大桥钢箱梁,进行了疲劳应力的监测分析和疲劳寿命的预测研究。利用实桥布设的应变传感器获取应变时程数据,处理成应力时程数据并结合雨流计数法技术,得到“日应力谱”和“标准日应力谱”。根据相关疲劳规范,研究了钢箱梁的疲劳寿命等问题。结果表明,由于车辆荷载谱或有限元模型均存在大量的假定简化,利用记录的应变（应力）时程数据进行疲劳寿命评估,为准确可靠的研究方法;应变传感器记录分析得到的日应力谱具有相似规律,“标准日应力谱”方法可以有效地处理应变传感器记录的大量实测数据。     

混合动力轿车电子节气门控制系统设计与匹配试验

基于智能积分模糊PID控制原理,采用英飞凌TLE4729G单片机开发了电子节气门控制系统的硬件和软件,并将其嵌入发动机ECU中.将所开发的电子节气门安装在混合动力车上,进行整车起动试验和工况循环试验.试验结果表明,混合动力车起动时间和喷油脉宽明显优于传统车,且电子节气门响应速度快,能满足混合动力车不同工况的需求.     

α-干扰素对慢性粒细胞白血病来源的树突状细胞的免疫调节作用(Ⅰ)

目的　于慢性粒细胞白血病 (CML)来源的树突状细胞 (DCs)无血清培养基中 ,加入α 干扰素 (IFN α) ,以探讨IFN α对CML DCs表达共刺激分子及分泌IL 10、IL 12P70的影响。方法　在诱导CML DCs的培养基中 ,除加入SCF、GM CSF、TNF α及IL 4外 ,还加入不同浓度IFN α。培养 10～ 14d后 ,流式细胞仪检测细胞免疫表型 ;G显带法显示Ph1染色体 ;噻唑蓝 (MTT)法检测CML DCs刺激正常人外周血淋巴细胞增殖状况 ;ELISA法检测培养上清IL 10及IL 12P70含量。结果　IFN α(30 0U·mL-1)组较无IFN α组 ,CML DCs的CD4 0、CD83、CD86及MHC I类抗原的表达均升高一倍 ;异体混合淋巴细胞反应 (MLR)中OD值增加一倍 ;Ph1染色体阳性比例、IL 10及IL 12P70浓度均减低。结论　IFN α能够部分纠正CML DCs免疫表型及功能缺陷 ,同其解除了CML血清中IL 10对CML DCs分化的抑制有关     

THE APPLICATION OF CORTICAL SOMATOSENSORY EVOKED POTENTIAL MONITORING IN CHILD SCOLIOSIS SURGERY

Scoliosisisoneofthecommonestdeformityinchildren .Itaffectsnotonlythebeautybutalsothedevelopmentofbodyandmind .Inthenearyears,thecorticalsomatosensoryevokedpotential (CSEP)monitoringwereusedtodetectthespinalinjuryinchildscoliosissurgeryinourhospitalandwegotagoodresult .MATERIALSANDMETHODS1　GeneralmaterialTherewerefifty onechildrenwithscoliosisinthisclinicalstudy ,includingforty twocaseswithidiopathicscoliosisandninecaseswithcongenitalscoliosis .Theiragesrangedfrom 4 .1yearsto 12 .3ye…