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......

公开股份私募投资当前发展迅速,但是极易损害中小股东利益,我国立法与执法实践对此尚未关注.英属维京群岛的司法实践采取了对于董......

公开股份私募投资在我国是一项比较新的融资方式,尚未有完备的监管文件出台.但由于其容易构成内幕交易以及容易损害中小股东利益的......

Reciprocating compressor auxiliary vibration usually caused by gas pressure pulsation.This paper studied the dynamic cha......

某钢厂氧气管道在安装运行6个月后,发现管道焊缝一处泄漏.通过取样进行化学成分、宏观形貌、金相及微观形貌分析发现,由制造时遗留......

In order to improve the high-temperature brazing quality of stainless steel pipe,the paper,by the example of the pipe un......

介绍了以稀土偶联剂对纳米CaCO3进行表面活化处理，并作为改性剂对废旧纸塑复合材料 进行改性，生产管材。探讨了纸塑复合材料的配方、......

Commercial code CFX was used to examine the performance of a two-fluid model to predict the details of upward isothermal......

This study investigates the use of glass fiber-reinforced polyester(GRP)pipe powder(PP)for improving the bearing capacit......

Due to the material problems and force majeure factors,the leakage will be occurred on the liquid-filled pipe resulting ......

Project: Production of large-calibre Pipe of High-density Polylhenc(PKS) in JiangmcnDescription of project: Big inch st......

As the main power unit of railway transportation, diesel locomotives are now developing towards high power, low fuel con......

概述了超高分子量聚乙烯（UHMWPE）管材的几种成型方法,介绍了UHMWPE管材在各个工程领域的实际应用效果和现状。......

Hydraulic transport of sand is one of the key processes in river, lake, harbor and waterway dredging engineering. Unders......

The interfacial electrification properties play an important role in the electrochemical corrosion reaction which leads ......

A test platform is established as per the practical working condition of elevating platform fire truck. The influences o......

The vortex-induced nonlinear vibration of casing pipes in the deep water was studied considering the loads of current an......

Based on the observation of a model test and in combination with some theoretica l analysis, the researches of some basi......

Experimental Study on oil-water two-phase flow patterns and pressure loss was conducted on a horizontal steel pipe loop ......

This paper focused on the corrosion resistance of cold spray Al–Al_2O_3composite coatings used on carbon steel pipe sur......

A remote-control tether-less isolation tool is a mechanical device that is normally used in pipelines to block the flow ......

PetroChina plans to spend at least US$60 billion in the next decade on overseas acquisitions, challenging ExxonMobil and......

Zhongyuan oilfields are mainly located in Dongpu depression,where the geological conditions were extremely complicated a......

This paper examines the feasibility in air drilling of transmitting down-hole signals by using microwaves. Firstly the b......

Drill pipe products are the most critical service requirement,the highest performance requirement and the highest qualit......

The flow stress behavior of grade G-105 steel(API standard) for oil drill pipe in hot compressive deformation was studie......

An analysis method for the buckling process of a pipe section with a random pipelay imperfection is proposed. Four basic......

Based on theoretical analysis two modified log-wake laws for turbulent flow in smooth pipes are obtained,one is applicab......

DANIELI has recently implemented its Coil Quality Estimator (DANIELI-CQETM) system to the Hot Strip Mill of United Metal......

The acoustic field in a cased hole is studied through numerical modeling by combining experiment measurement when the fi......

The feasibility of applying Capacitively Coupled Contactless Conductivity Detection(C~4D)technique to measurement of bub......

It is the development tendency of gas pipeline to improve strength of line pipe and transmission pressure, which is an i......

Different factors affecting the efficiency of the orifice energy dissipator were investigated based on a series of theor......

A pipe model with a mass ratio(mass/displaced mass) of 4.30 was tested to investigate the vortex-induced vibrations of s......

The goal of this research was to determine the impact of nonionic surfactants on drag reduction effect in water and meta......

A periodic pipe system composed of steel pipes and rubber hoses with the same inner radius is designed based on the theo......

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手套用旧了怎么办?物尽其用,让它变身为一款花栗鼠玩偶吧。Materials and tools1 brown glove,stuffing,2 thick pipe cleaners(cu......

A new geometric modeling approach is introduced in this paper.First the principle of modeling of 3D pipe network is disc......

Pipe jacking has become a popular method in drainage construction in Hong Kong.However,the variedground conditions enco......

The west east gas transmission engineering is an important project attracting domestic and foreign attention. The gas p......

Combining real accelerating genetic algorithm(RAGA) with the optimization design of multi-hole and varied diameter pipe,......

大地艺术发电机设计大赛是融合艺术和科学的平台,旨在鼓励公共艺术在设计和建造上把清洁能源纳入当地公共基础设施中。此次大赛的......

A 3D unsteady state numerical model of heat transfer in the laser circular cutting of pipe was developed,using the self......

A set of X-ray fluorescence analysis equipment for online measurement of uranium and plutonium concentration was designe......

To better understand the carbon dioxide (CO2) corrosion behavior of carbon steel and its influence on petroleum developm......

Based on elasticity theory, the multi-modes and disperse characteristics of guided circumferential waves in a pipe were ......

There are many experimental studies dedicated to determining the effect of the proximity of a plane boundary on the vort......

A multifunction heat pipe adsorption refrigerator is designed, which uses solidified com- pound adsorbent of CaCl2 and a......