工程物流的国际化与国际工程物流运营研究

结合实际工作经验与长期研究结果,总结了工程物流的概念与四大基本特点：指出受国际工程承包业务的显著增长,工程物流的国际化即国际工程物流成为新的发展趋势．进而系统分析了国际工程物流的市场前景、业务流程与框架、关键要素等运营方面的关键问题,最后以实际案例形式对关键要素进行了剖析。     

DETECTION OF STRAND BREAKS OF DNA IN HUMAN EARLY CHORIONIC VILLUS CELLS INDUCED BY DIAGNOSTIC ULTRASOUND USING ^32P-LABELED ALU HYBRIDIZATION

Genetic effects of ultrasound on fetus havebeen extensively studied since ultrasonograph waswidely appliedin obstetric practice.In recent years,there have been reports onin vivomolecular geneticeffects of diagnostic ultrasound[1-4].In vitroexperi-ments have found that single-stranded breaks(ssbs)and double-stranded breaks(dsbs)in DNA are themain indices for DNA lesions induced by ultra-sound[5].But,no reports on whether ultrasound cancausein vivossbs and dsbs in DNAare available.Tofurther …     

单片机技术在智能交流接触器实时调控中的应用研究

通过对智能交流接触器零电流分断控制原理的分析,发现其零电流分断失败的原因,并在此基础上提出将单片机实时控制系统嵌入传统接触器中,实现零电流分断的智能“无弧”接触器。     

清洁汽车--未来中国城市车辆发展的方向

本文着重介绍了燃气汽车近3年来在中国的发展及取得的成果,并从能源结构调整和环保两大意义上阐述了发展燃气汽车的必要性和重要性,并就未来燃气汽车的发展做了展望。     

海洋科学考察船动力系统现状及发展趋势概述

本文结合国内外海洋科学考察船的现状和发展趋势,详细地分析了国内外海洋科学考察船动力系统的发展现状,明确了科学考察船动力系统采用电力推进、大型化、集成化发展趋势,提出了大型化、集成化、低噪声、智能化、节能环保等的发展方向,对我国海洋科学考察船动力系统的选配、设计起到指导性作用。     

Assessing the Potential for Surf Break Co-Management: Evidence from New Zealand

The involvement of surfers in surf break co-management initiatives may assist local authorities in providing for surf breaks and develop community stewardship. This research involved a comparative case study of the Auckland and Otago regions in New Zealand to assess the potential, and identify key ingredients, for successful surf break co-management. An online survey of surf break users (n = 181) and qualitative interviews (n = 16) considered the potential voluntary involvement of surfers, the role of local authorities and types of approach to surf break co-management. Findings indicate a level of support from a proportion of surfers to be involved and stress the need for local authorities to provide a supporting policy response. A local-scale co-management approach, similar to National Surfing Reserves in New South Wales, Australia, is considered more likely to produce positive outcomes compared to the involvement of surf break interests in coastal-wide co-management approaches.     

世界汽车工业现状与趋势

本文简要介绍当前世界汽车工业情况和进一步全球化趋势，对影响汽车技术发展的环境，安全与能源三大问题作了概括说明，指出计算机集制造系统，同步工程，精益生产方式等现代技术已经引起汽车制造业的巨大变革。     

我国道桥施工企业技术创新体制的现状及发展方向

分析了我国道桥施工企业技术创新工作的现状以及建设市场开放后的竞争形式,提出了技术创新需采取的措施和发展方向。     

An empirical analysis of freight transport traffic modes in Brazil, 1996–2012

This paper analyses the performance of freight transportation modes in Brazil – namely air, water, rail and road – from February 1996 to August 2012 by investigating their long memory properties using fractional integration and autoregressive models on monthly tonnage data. Two important features are analysed: the degree of dependence of transportation traffic across time and its seasonal structure over the period. Furthermore, the stability of parameters across the sample period is investigated, incorporating potential structural breaks in the data, which describe discontinuity in freight transportation traffic. Some policy implications are derived.     

采用比例趋势分析法预测劳动力的需求量

受造船管理模式、生产场地资源等条件制约，造船企业生产计划安排不均衡的现象时有发生，由此引发的劳动力需求不均衡的现象在各个造船生产部门不同程度的存在，如何根据造船生产计划，有效地预测各生产阶段的劳动力需求，进行劳动力资源余缺调剂，一直是造船企业在努力探索的热门话题。本文试图运用数理统计的原理，借助计算机辅助工具（专业的软件），通过研究历史统计资料一实动工时的累积曲线，结合造船生产计划安排并考虑未来情况的变动，估计预测期内的累积曲线，以比例趋势法预测未来劳动力的需求量。