论我国电子商务物流的现状及发展对策

介绍电子商务与物流的关系以及电子商务物流的概念和特征,分析我国电子商务物流发展的现状及存在的主要问题,并对我国电子商务物流的发展提出自己的见解.     

浅议电子商务环境下中小运输企业发展物流配送的意义

近年来随着国际油价的不断攀升，中小运输企业面临着高油价与高空驶率的双高压力，致使我国相当多的中小运输企业举步维艰，本文通过对电子商务与中小运输企业和物流配送关系的分析，指出我国物流运输企业绝大多数为中小型企业，中小运输企业是物流运输业的主力军，在国民经济发展中具有不可比拟的作用，文章通过电子商务的特点说明中小运输企业发展电子商务环境下的物流配送体系具有重大的现实意义，对于中小型物流企业的实际发展具有一定的指导作用。     

疏通物流末端“神经”夯实物流基础

物流是电子商务发展的基础环节，当前我国物流发展尤其是老少边穷地区还存在很多问题，如何夯实物流基础，打造或疏通老少边穷地区的物流末梢“神经”文章提出了相应的对策和建议。     

电子商务与物流的和谐发展

电子商务作为：二十世纪信息化、网络化的产物，逐渐改变着传统商务的模式，而物流作为电子商务的组成部分，在其中发挥了越来越重要的作用。本文对电子商务和物流之间的关系进行了研究，并分析了如何使电子商务与物流之间实现和谐发展。     

电子商务与物流配送关系研究

物流是电子商务的重要组成部分,也是电子商务发展的瓶颈.本文将着重分析在当今知识经济的大环境中,电子商务企业和物流企业之间的重要关系及相互影响,以及两者之间如何摆正自己的位置,如何协调电子商务与物流配送的关系,从而使我国的电子商务企业,物流企业兆同发展,创造辉煌.     

浅析中国农业领域电子商务的应用与发展

文章从我国电子商务发展现状入手,分析其在农业领域的应用,并就发展农业电子商务,建设现代农产品物流体系,加快我国农业电子商务的发展提出建议。     

浅谈我国电子商务环境下的第四方物流

随着电子商务的迅猛发展,物流在电子商务中所起的作用越来越大,成为密切的互动关系。物流是实施电子商务的根本保证,电子商务也促使传统物流向现代物流发展。将从现代物流和电子商务的一些基本特征入手,探讨在的电子商务环境下第四方物流的发展。     

电子商务环境下快递物流标准体系设计

本文基于电子商务对快递企业的需求与快递业中存在问题,指出了完善我国快递物流标准,建立电子商务环境下快递物流标准体系框架的必要性;从基础、信息、技术和管理四方面,提出了电子商务环境下快递物流标准体系,旨在规范电子商务参与各方的行为,提升快递企业的技术、管理和服务水平,引导我国快递业的健康发展,最后给出了标准研制和实施的建议。     

论述滞后的物流业对我国电子商务发展的影响

在经济全球化和信息化的时代，电子商务显然成为各国企业降低交易成本，增加贸易机会，提高企业竞争力的强效工具。本文首先分别简单提出了电子商务和物流的概念，分析两者之间的密切关系：接着通过具体的数据表明我国物流业滞后的发展现状，这种滞后的发展给电了商务发展造成可很大的障碍，指出应迅速有效的分析屯子商务环境下物流发展存在的主要问题以及找出解决问题的措施最后详细地论述了物流业存在的问题及解决方案。     

电子商务环境下供应链与物流管理的优化探讨

在互联网快速发展的背景下,电子商务也得到了快速的发展,在电子商务中,供应链与物流管理是重要的环节.面对电子商务环境的快速变化,供应链与物流管理也需要应时而变,不断完善与优化.当前电子商务环境下的供应链与物流管理存在明显的问题,阻碍了电子商务的发展,本文针对性地提出了简要优化措施.     

Insertion of triangulated surfaces into a meccano tetrahedral discretization by means of mesh refinement and optimization procedures

In this paper, we present a new method for inserting several triangulated surfaces into an existing tetrahedral mesh generated by the meccano method. The result is a conformal mesh where each inserted surface is approximated by a set of faces of the final tetrahedral mesh. First, the tetrahedral mesh is refined around the inserted surfaces to capture their geometric features. Second, each immersed surface is approximated by a set of faces from the tetrahedral mesh. Third, following a novel approach, the nodes of the approximated surfaces are mapped to the corresponding immersed surface. Fourth, we untangle and smooth the mesh by optimizing a regularized shape distortion measure for tetrahedral elements in which we move all the nodes of the mesh, restricting the movement of the edge and surface nodes along the corresponding entity they belong to. The refining process allows approximating the immersed surface for any initial meccano tetrahedral mesh. Moreover, the proposed projection method avoids computational expensive geometric projections. Finally, the applied simultaneous untangling and smoothing process delivers a high‐quality mesh and ensures that the immersed surfaces are interpolated. Several examples are presented to assess the properties of the proposed method.     

Certification Institutions Expected to Update and Transfer Information on Present Standards

Standards are the basis for production enterprises to organize production, ex-factory inspection, trade (delivery) and technical exchanges, product certification, quality arbitration and supervision.……     

Flow calorimeter for enthalpy increment measurements on condensed gases

A flow calorimeter for enthalpy increment measurements on condensed gases is presented. A better knowledge of the properties of the liquefied natural gas is needed, and therefore a liquid loop has been designed for our flow calorimeter. The fluid loop in the calorimeter is designed in order to avoid the two-phase region, since two phases would give compositional disturbances in the measurements. The avoidance of the two-phase region is made possible by increasing the pressure of the test fluid after the measurement section, then heating the fluid at super-critical pressure past the critical point. Finally, the fluid is throttled to the low-pressure gas state at the inlet condition of the compressor that circulates the fluid. To perform the pressure increase, a new cryogenic pump has been designed. To evaluate the new equipment, measurements were taken on liquid ethane over the temperature range 146–256 K at pressure between 0.9 and 5.1 MPa.     

Refrigerators Enter a New Era of Health Preservation Frestech initiates the establishment of China's first standard for household sterilization refrigerators

On November 30, 2007, the China Association for Standardization (CAS) held a press conference at Beijing Diaoyutai State Guest House. Leaders from the China Household Electric Appliance Research Institute, the China Household Electric Appliance Association, and the China Consumers' Association attended and made speeches.……     

Optimum-Simulation von Ernteprozessen

Zusammenfassung Bei der Gestaltung von Ernteprozessen — beispielsweise des Prozesses Mähdrusch, Körnertransport und -abnahme — als transportverbundene Fließarbeitsverfahren mit mindestens zwei verschiedenen Arbeitsmitteln gibt es einen großen Optimierungsspielraum. Solche Prozesse sind mehrstufige Bedienungsprozesse mit gemischter Anordnung der Bedienungseinrichtungen. Außerdem besitzen sie stark ausgeprägte räumliche Aspekte. Es wird vor allem gezeigt, welche Merkmale solcher Prozesse in Simulationsmodellen abgebildet sein müssen, welche Zielgrößen in Abhängigkeit von welchen Einflußgrößen unter Berücksichtigung welcher Prozeßbedingungen ermittelt werden sollten und wie der Bewertungsprozeß zur Ermittlung der gewünschten Informationen gestaltet werden muß.     

A study of centrifugal cast high boron high speed steel

In the present study a high‐boron high speed steel (HSS) roll material was designed. Many expensive alloy elements have been substituted by cheap boron alloy, and high‐boron high speed steel roll has been manufactured by centrifugal casting method. The microstructures, mechanical properties and wear resistance of centrifugal casting high‐boron high speed steel roll have been investigated by optical microscopy (OM), scanning electron microscopy (SEM), and X‐ray diffraction (XRD) analysis, hardness test, impact test and wear test. The results indicated that the solidification microstructures of high‐boron high speed steel roll consisted of M₂(B,C), (W,Mo)₂(B,C), M₃(B,C), M₂₃(B,C)₆ type borocarbides and martensite, a small amount of retained austenite. Borocarbides were continuously distributed over the grain boundary. After quenching from 1050 °C, local broken network appeared in partial borocarbides, and fine secondary borocarbide precipitated from the matrix. After tempering from 525 °C, the amount of precipitated borocarbide increased significantly. After heat treatment, the hardness of high‐boron high speed steel roll excelled 60 HRC, and its impact toughness excelled 8.0 J/cm². The single groove steel rolling amount of high‐boron high speed steel rolls increases by 500% than that of bainite cast iron roll, when the rolls are used in K₁ mill housing of bar mill.     

Thixotropy of Systems with Shear Thinning and Plastic Flow Behavior

The definition of the thixotropy is a decrease in viscosity with time in shear and a subsequent recovery of viscosity after the shear deformation is removed.We ...     

Brainstorming for ISO Strategy 2016-2020

正Responding to ISO’s appeal for survey for the to-be-developed ISO Strategy Plan for 2016-2020,SAC hosted a special workshop over the needs and comments of various fi elds on June 8 in Beijing.The workshop was attended by ISO President-elect and Ansteel General Manager Zhang Xiaogang,SAC Vice-Administrator Yu Xinli,and 30 experts from     

CNAS Passes APLAC's PTP Review

正The review group of Asia Pacific Laboratory Accreditation Cooperation(APLAC)carried out a 4-day peer review of the proficiency testing provider(PTP)for China National Accreditation Service for Conformity Assessment(CNAS)from July 28 to 31,2014.CNAS passed the PTP review with excellent performance.Two senior peer reviewers of APLAC made a comprehensive,rigorous and detailed review of CNAS’s PTP accreditation activities,and made the on-spot inspection of the review groups in Shanghai and Shenzhen respectively.