油气田管道用过滤器国际技术评标探讨

管道用过滤器是工厂正常安全运行不可或缺的部件,国际技术评标时需要注意以下几个方面的关键问题:过滤器类型同供货商供货能力的匹配度、设计制造和检验验收标准是否符合国际业主的要求、供货范围是否符合项目要求、许用压力降是否合理、材质偏离是否会带来后续设计变更、酸性环境对材料及焊接的要求供货商是否能落实到位、备品备件是否符合国际业主的个性化特点。解决好以上问题,会加快过滤器的技术评标,为项目和业主选出高性价比的过滤器,可满足业主对技术、工期等各方面的需求。

技术评标因素的计算及其应用

介绍常规燃煤火电机组技术评标因素的概念及计算，说明在招标及设备采购中将技术性能折算成价格进行评价的方法，并例举神头第二发电厂二期工程的具体计算数据供参考。

化工企业电气设备技术评标过程中易忽视的关键点解析

在经济全球化的影响下,电气设备的技术评标也逐渐呈现国际化的发展趋势,已经成为合规采购环节的重要组成内容。电气设备的选择将会直接影响着项目后期的运作,因此设备技术评标对化工企业来说至关重要。文章将重点解析技术评标过程中容易忽视的问题,以便进一步提高技术评标的水平。

太仓LPG终端详细设计的采办技术文件及评标书编制

介绍了太仓LPG终端设计中采办技术文件及技术评标书的编制过程,以及所采取的一些新思路和新做法。

工程量清单计价条件下的计算机辅助网络评标

我国自2003年7月1日开始施行《建设工程工程量清单计价规范》,工程量清单计价要考虑的因素较多,这给建设工程招投标和评标工作带来了新的变革,包括增加了评标的工作量和为电子评标提供了必要的技术条件。本文从三个方面论述了工程量清单计价条件下的计算机辅助网络评标的环境条件和技术方案。

技术基准加(减)分评标法在幕墙工程招标中的应用

技术基准加(减)分评标法是项目招标综合评分法的一种,是以技术优势为一定因素确定基础,再进行加(减)分的一种评标办法。此方法适用于施工难度较高,且方案竞争性较强,或总承包招标的工程。文章介绍了这一方法的基本概念,并结合某星级宾馆的幕墙工程在开展招投标评标过程中采用该方法的具体做法。

经评审的最低投标价法评审研究

为推动企业提高管理水平,准确掌握经评审的最低价评标方法,文章系统分析了经评审的最低投标价法评标应满足的条件,并从资格审查、技术标评审、商务标评审三方面系统阐述了经评审的最低投标价法的评价体系、评审内容,提出了企业个别成本的界定方法,为该种评标方法的进一步推广起到了良好的引领作用。

招标活动亟待规范

在大宗采购、发包工程的众多方式中，招标的最大优越性就在于其操作过程公开、规范，然而笔者在日常工作中却发现：现行的招标活动在总体规范的大背景下，有着许多不尽如人意的地方，主要表现为以下几个方面：

Application of Participatory Monitoring and Evaluation in Development of Animal Husbandry Technology

[Objective] This study aimed to provide references for the application of participatory monitoring and evaluation in the development of animal husbandry tech- nology. [Method] With the livelihood improvement program for agricultural and pas- toral area in northern Yunnan as the example, the development process of partici- patory animal husbandry was overviewed. And the monitoring and evaluation pro- cesses of participatory animal husbandry were introduced and analyzed. [Result] The monitoring and evaluation indicator system of participatory animal husbandry technol- ogy included 4 layers, namely technology, institutional system, personnel ability con- struction and effectiveness, and 11 third-level indicators, namely, technical characteristics, superiority-inferiority comparison, community and farmers, technical personnel, project personnel, economic indicators and social indicators. [Conclusion] This study provided the references for the application of participatory monitoring and evaluation in the development of animal husbandry technology.

Integral evaluation of operating quality and the deciding of management strategy in productive coal mines

According to overall mean square root of weighted deviation, presented an evaluation model of geology-technique-social conditions with a significant index system for the estimation of operating quality in productive coal mines. In the given example, the evaluation result is used to decide management strategy of coal mine, which plays a guiding role in the production.

Measurement and Evaluation of Efficiency of Regional Technical Innovation Jiangsu Province

The target system was built to evaluate the efficiency of technical innovation for 13 cities and three regions in Jiangsu province based on the data envelopment analysis. This paper comparatively analyzed the efficiency of innovation and scaling return for each region in Jiangsu province. The projection analysis on production frontier face for inefficient regions was also performed. Evolving rules and regional difference of technical innovation system of Jiangsu province were explored. Some important results and suggestion were obtained.

涉外石化项目管理承包商的电气专业职责初探

介绍南海石化项目管理承包商的电气专业职责。

Assessment of k–ε models using tetrahedral grids to describe the turbulent flow field of a PBT impeller and validation through the PIV technique

In turbulence modeling, the RNG and Realizable models have important improvements in the turbulent production and dissipation terms in comparison to the Standard. The selection of the appropriate turbulence model has an impact on the convergence and solution in STRs, and they are used in mixing, multiphase modeling or as starting solution of transient models as DES and LES. Although there are several studies with the pitched blade turbine(PBT) impeller, most of them used the Standard model as representative of all k–ε models, using structured hexahedral grids composed of low number of cells, and in some cases under axial symmetry assumptions.Accordingly, in this work the assessment of the Standard, RNG and Realizable models to describe the turbulent flow field of this impeller, using the Multiple Reference Frame(MRF) and Sliding Mesh(SM) approaches with tetrahedral domains in dense grids, is presented. This kind of cell elements is especially suitable to reproduce complex geometries. Flow velocities and turbulent parameters were verified experimentally by PIV and torque measurements. The three models were capable of predicting fairly the pumping number, the power number based on torque, and velocities. Although the RNG improved the predictions of the turbulent kinetic energy and dissipation rate, the Realizable model presented better performance for both approaches. All models failed in the prediction of the total dissipation rate, and a dependence of its value on the number of cells for the MRF was found.

Gastrointestinal stromal tumor and mitosis,pay attention

The difference between stages I and ]]I of gastric gas- trointestinal stromal tumor depends principally on the number of mitosis. According with TNM classification, the presence in the tumor of high mitotic rate deter- mines the upgrading. Many studies exposed different count techniques in evaluating the number of mitosis. An international standardized method to assess mitotic rate is needed.

Crucial technologies in the design of Xiluodu Super High Arch Dam

Some super high arch dams （ SHADs）, like Xiluodu Arch Dam, after their heights reaching the magnitude of 300 m, confront lots of technical challenges in design and construction. Several crucial technologies of 6 SHADs will be reviewed and discussed in this and consecutive papers, including Xiluodu, Jinping I in China, Baktiary in Iran, ete. , on the topics of the research method, criterion for evaluation and engineering application of dam safety analysis and evaluation, reasonable dam base interface, dam shape optimization, comprehensive treatments of complex foundation, anti-seismic engineering, dam construction material, concrete placement and temperature control, instrumentation and monitoring of dam operation, etc. This paper will mainly focus on the overall safety of SHADs, reasonable dam base interface analysis and evaluation and their engineering application.

Diagnosis of hepatocellular carcinoma

Hepatocellular carcinoma (HCC) is one of the commonest cancers worldwide, particularly in parts of the developing world, and is increasing in incidence. This article reviews the current modalities employed for the diagnosis of HCC, including serum markers, radiological techniques and histological evaluation, and summarises international guidelines for the diagnostic approach to HCC.

编制投标施工组织设计应注意的事项

文章分析造成无效标的原因和应注意的相关问题,藉以提高中标概率.

Research on the statistics index system and evaluation method of high and new technology industry development

During the evolution of the global economic, high and new technology industry has become the main driver to impel the global economy growth via technological advancement, and the main means to guarantee the sustainable development of the global economy. In the view of China’s situation, this article analyzes the experiences of OECD in high and new technology industry and gives a statistics index system along with the evaluation method to estimate the development of high and new technology industry.

Delimiting the consolidation area for supplementing prime farmland with GIS technology

In view of the fact that consolidation area for supplementing prime farmland （CASPF） is a new concept proposed in the latest round of general land use planning in China, this paper proposes a new and integrated GIS- based technology for delimiting CASPF. Taking the advantage of the features of CASPF, a comprehensive evaluation indicator system for defining ordinary farmland as CASPF is established in this study, which covers 11 indicators, including slope, land plots connectivity, altitude, surface soil texture, and so on. With the help of the ideal-point method, ordinary farmland plots are sorted according to their evaluation scores in descending order. Based on the space analysis technique of GIS, high-ranking land plots are defined as CASPF reasonably.

The role of e-readiness assessment criteria in accepting e-commerce for small and medium size enterprisesmDevelopment of technology acceptance model

This paper develops Davis technology acceptance model by adding two criteria of e-readiness assessment. For small and medium size enterprises, the paper evaluates the credit of developed model in studying the efficient factors in internet technology acceptance, which is one of the most applicable communication tools in e-commerce. The added factors, taken from models and means of e-readiness assessment, are ＂existing information technology infrastructures＂ as well as ＂organization＇s training＂. The authors study 45 small and medium size enterprises in the city of Tehran, which are active in information technology products and services. Using Lisrel structural equation modelling, it is shown that there is a meaningful relationship between the added factors and the variables indicating internet network usage. Therefore, the better factors of e-readiness assessment lead to the higher acceptance level of electronic communication tools in e-commerce.