pipe相关论文
针对复杂环境中多无人平台协同作战指挥控制难度大、资源调度效率较低、难以充分发挥作战效能等问题，采用OODA环理论研究了多无人平......
针对电商平台快递配送服务的单用户单址服务的问题，提出了一种基于Petri网的电商平台快递配送服务流程模型的优化分析方案。首先，按......
The flow stress behavior of grade G-105 steel(API standard) for oil drill pipe in hot compressive deformation was studie......
Seperated heat pipe systems are widely used in the fields of waste heat recovery and air conditioning due to their high ......
This paper presented a novel electrohydrodynamic (EHD) micropump based on MEMS technology. The working mechanisms and cl......
Hypoeutectic and hypereutectic Al2O3-ZrO2 multiphase ceramics-lined composite pipes were produced by using the gravita-t......
The high-frequency interference exists obviously in low strain integrity testing of large-diameter pipe pile when a tran......
The underwater heat exhausting source can cause the thermal difference of the surrounding and surface water.In this pape......
The heat transfer analysis of variable conductance heat pipe air preheater was carried out. The temperature trans-fer ma......
The heat transfer analysis of variable conductance heat pipe air preheater was carried out. The temperature trans-fer ma......
A novel loop heat pipe(LHP)cooling device for high power LED is developed.The thermal capabilities, including startup pe......
An experimental study of vertical gas conveying of Geldart-D powder as a dilute phase is performed in a pipe of length ......
In the lab（实验室）， the scientist is going to water the flowers through（通过） the pipes（管道）. But which pipe can go to the flo......
The changes in the mechanical behavior of electric resistance welded(ERW) pipes before and after the cage roll forming p......
This paper analyzes the pipe network system of oil-gas collection and transportation foroffshore oilfield development.A......
This paper analyzes the pipe network system of oil-gas collection and transportation foroffshore oilfield development.A......
A dynamic modeling approach for nonlinear vibration analysis of the L-type pipeline system with clam
There exists a lot of research on the nonlinear vibration of the pipeline system with dif-ferent boundary conditions. To......
Natural gas pipeline drag reduction agent is a new type of drag reduction technology. The natural Gas drag reducing agen......
Computer simulation was used for hydraulic lifting systems. Based on theory of multiphase flows and their applications o......
目的 探讨鼻泪管阻塞手术失败后的再手术的效果.方法 置入泪道疏通管治疗鼻泪管阻塞手术后再次泪道阻塞178例(178眼).结果 随访3个......
硅砂粉是目前压蒸养护工艺混凝土制品的常用掺合料,我公司生产的硅砂粉是采用符合GB/T14684-2001规定且SiO2含量＞90.0%的建筑用砂或......
浦西管理中心位于世博浦西园区D12地块,在原江南造船厂机装管子工场原址上改建,计划作为浦西综合配套服务用房.改造后主要功能是各......
Based on upper bound element method,the analysis model for press piercing process was constructed and its analytical exp......
1 引言rn近年来,我国大多数城市相继出台了在市内工程中禁止使用锤击设备进行桩基础施工的法律法规.而静压桩法是利用静力将预制桩......
1前言rn冶金企业中.加热炉、热处理炉是普遍存在的热工设备.承担着坯料加热或工件热处理的重要任务.对于加热炉和热处理炉来说,高......
11月4～5日,国际塑料管道会议协会(Plastic Pipe Conference Asso-viation)首次与中国塑料加工工业协会塑料管道专委会(CPPA)合作在......
1 工业纯钦特性rn工业纯钦是有色金属,呈银白色,比重小,突出特点是熔点高(熔点1 668℃)、导电性差、线膨胀系数小、密度比铁低、比......
Energy Transfer Mechanism and Probability Analysis of Submarine Pipe Laterally Impacted by Dropped O
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
私募股权投资:广义地讲,私募股权投资指对所有IPO(初次公开发行)之前及之后(指PIPE投资)企业进行的股权或准股权直接投资,包括处于......
An experimental bimorph piezoelectric element (PZT) actuator for small pipe robot is developed. The robotcan move in φ ......
介绍了针对长庆油田在水套加热炉使用过程中暴露出结垢和腐蚀严重、火筒和盘管维修频繁的实际问题,在对加热炉结构和热力特性进行......
为降低高温高压流体管道的制造成本,遵循耐温与耐压分离的原则,提出了一种耐温耐压的多层管道结构,并建立了计算该管道壁温的热力......
Corrosive failure is frequently found in petrochemical pipelines which may lead to the leakage of the pipes and even the......
The conservative difference scheme and the third-order Runge-Kutta scheme in combination with the the Crank-Nicholson sc......
管道的当量粗糙度k是关键的水力计算参数,同时也是评估不同厂家同类管道制造加工质量的重要指标,因此对于一种新型管道,从水力学的......
In order to obtain a basic understanding of the unwanted distortions in the pipe wall during the press cutting process,t......
Primary study on holdup measurement of 235U in pipe using γ-ray spectrometry and Monte Carlo simulat
The pipe holdup measurement is very important for decommissioning nuclear facilities and nuclear-material control and ac......
焊缝在整个管网系统中是比较薄弱的部分,在温度、压力、介质腐蚀和振动的影响下容易出现裂纹缺陷,对管道的安全运行产生危害,并且......
由于我国水资源分布不均衡,政府对水源保护要求日益严格,城市开发建设要求零散水源归并,因此长距离输水管道工程较多。以沈阳辽西......
采用实验方法研究高密度聚乙烯(PE-HD)热熔焊接接头区域的材料性能与管材本体的差异。按照ISO 21307标准方法形成热熔焊接接头后,......
浆体泵在配管时不同于普通流体泵,浆体泵需要考虑管内介质对管壁的磨蚀以及管道的防堵塞,故不能像普通流体泵一样通过增加弯头数量......
PCCP管因具有长期稳定性能好的特点而被广泛应用于长距离引水供水工程中。依托工程实例,基于ABAQUS有限元分析软件,建立PCCP管段接......
真空管道磁浮交通技术由于突破了空气阻力、噪声和轮轨黏着等因素制约,未来可成为弥补或取代航空的长距离运输模式。为了获得适用......
通过拉伸和断裂试验,研究了热熔对接对中密度聚乙烯(MDPE)管力学性能和焊接裂纹的影响。拉伸试验表明,热熔对接对材料的屈服应力、......
