论传统道路货运企业向现代物流企业的转化

社会经济环境的改变和传统道路运输企业的经营现状决定了传统道路货运企业必须向现代物流企业转化。针对转化过程中存在的问题和困难 ,提出传统道路货运企业要达成共识 ,以物流理念从事经营 ;改革管理体制 ,实行政府引导 ;改变企业的经营组织形式 ;找准发展物流的切入点 ;树立服务意识 ;注重人才培养 ;加强物流软件建设     

Gemini表面活性剂的结构特性及其应用

Gem ini表面活性剂是一类新型表面活性剂,它是由两个单链头基普通表面活性剂通过化学键联接在一起,由于其特殊的结构使其具有优良的性能和广泛应用。本文对其结构特点和性能以及应用方面进行综述和分析,这种表面活性剂具有较好的应用和开发前景。     

连云港港口集装箱运输在"长三角"交通规划出台后的发展对策

《长江三角洲地区现代化公路水路交通规划纲要》出台后,分析连云港港口集装箱吞吐量以及运输现状,预测连云港港口集装箱运输发展所面临的形势,提出连云港港口集装箱运输快速发展的对策。     

大丰市盐文化资源调研报告

就淮盐起源与大丰盐业;大丰盐文化的特色与特点;大丰盐文化中的典型人物与代表作品;大丰盐文化的挖掘与保护;大丰盐文化资源的开发前景与保护利用构想等问题,进行调研与探讨。     

基于Lennard-Jones和Soft-Sphere势能模型的流体传递性质分子动力学模拟比较

利用分子动力学模拟计算传递性质方法，采用Green-Kubo关系式基于Lennard-Jones势能模型和Soft-Sphere势能模型模拟了速度相关函数、压力张量相关函数、热流相关函数以及它们对应的传递系数，讨论了Lennard-Jones势能分子间吸引力和Soft-Sphere势能“软度”对流体传递性质的影响．     

45钢盐浴加热淬火黑斑的研究

45钢零件盐浴加热淬火常出现黑班软点。本文通过试验及光学和电子金相分析发现黑斑表层有深度0.3毫米左右的贝氏体组织,其余部分是马氏体组织,所以黑斑处硬度低。试验证实黑斑不是腐蚀痕。笔者认为黑斑软点是淬火加热时零件出炉瞬间盐浴中某些粘稠悬浮物附着在零件表面,使淬火冷却时冷速降低而形成“逆淬”现象。黑班是附着痕     

Technical Uncertainty in Quantitative Policy Analysis — A Sulfur Air Pollution Example

Expert judgments expressed as subjective probability distributions provide an appropriate means of incorporating technical uncertainty in some quantitative policy studies. Judgments and distributions obtained from several experts allow one to explore the extent to which the conclusions reached in such a study depend on which expert one talks to. For the case of sulfur air pollution from coal-fired power plants, estimates of sulfur mass balance as a function of plume flight time are shown to vary little across the range of opinions of leading atmospheric scientists while estimates of possible health impacts are shown to vary widely across the range of opinions of leading scientists in air pollution health effects.     

盐分胁迫对中华补血草和高粱体内脯氨酸、脱落酸含量的影响

盐分胁迫条件下,中华补血草和高粱体内脱酸含量在12h内随NaCl处理浓度的增加而增高,随后则下降;脯氨酸含量则随NaCl处理浓度的增加和处理时间的延长而增加.外源脱落酸可以促进中华补血草和高粱体内脯氨酸含量的增加。     

西双版纳古代交通考略

本文根据相关文献史料,对秦汉至清代云南西双版纳地区与外地之间的交通情况进行较细致的考述,重点研究了上述地区交通线以及驿站设置的历史沿革.     

Assessing Cross-Media Impacts: A Comparative Risk Approach

The Oregon Department of Environmental Quality has developed a Cross-Media Comparative Risk Assessment model to address certain regulatory concerns. The model generates a Human and Ecological Risk Index for a facility releasing toxins into the environment. The risk indices are based on chemical fate and transport predictions, toxicity, population density, and ecological sensitive areas. The model can be used to rank facilities for inspection or as a tool to assess the progress of pollution prevention programs. Regulatory permitting departments can use the model to address the cross-media transfer of pollutants from one environmental compartment to another. The versatility of the model allows adaptation to each specific users needs.