软土直剪测试及强度的讨论

软土一般是在静水或缓慢的流水环境中沉积,再经长期生物化学作用形成的粘性土.珠江口及粤东沿海地区广泛分布着软土层,通过对该地区多个工程的软土层进行大量的直剪试验,发现存在一些异常现象.根据直剪试验,对这些异常现象进行分析和讨论.     

螺旋桨设计中的自动绘图程序设计

分析了螺旋桨图形的特点,使用高级语言开发了软件,将螺旋桨设计结果直接生成AutoCAD可以接收的DXF形式的文件,大大提高了工作效率。     

港口视频监控系统的防雷措施

介绍雷电对沿海港口视频监控系统的危害形式和途径,结合工程实例,提出港口视频监控系统防御雷电灾害的措施。     

高速船的振动与噪声控制

在分析了高速船振动,噪声特性的基础上,阐述了适合高速船的 与噪声控制措施,提出了相应不同计算方法精度的不同频率储备量,对处理舱内液体对船底结构振应提出了更符合合实际情况的新规定。     

Economic feasibility of an NSR/SCR-combined container service on the Asia-Europe lane: a new approach dynamically considering sea ice extent

The trend towards global warming and the rapid decline in the extent of summer Arctic sea ice over recent years has increased the feasibility of international Arctic shipping. In this study we propose a seasonal NSR (North Sea Route)/SCR (Suez Canal Route)-combined shipping service linking Shanghai and Rotterdam, using the Northern Sea Route during the economical navigable window but using the traditional Suez Canal Route at other times. Different from the previous literatures, this paper dynamically considers the sea ice extent in the model, which is more reasonable for the assessment of Arctic container shipping, because fuel consumption is highly related to ship speed, while ship speed is determined by the relative distances of ice-covered and ice-free route stages. A new approach is developed to predict the time points at which the ship enters and exits the ice-covered stage, given that both the ship position and the extent of sea ice are constantly changing. The results show that the NSR/SCR-combined Arctic container service can be more economical than the SCR, given lower NSR tariffs.     

视频监控系统在港口的应用

在港口的货物仓库、堆场、各出入卡口、码头前沿等监控点安装视频监控探头,构建数字视频监控系统,可以使口岸监管部门实时监控现场情况,并可以通过数字化设备记录取证,从而大大减轻监管人员的劳动强度,提高口岸通关效率.     

CYCLIC CHANGES OF LACTATE DEHYDROGENASE IN CERVICAL MUCUS

ＷａｎｇＨｏｎｇ（王红）；ＣａｏＺｈａｎＳｕｎ（曹缵孙）；ＷｅｎｇＱｉｌｉａｎｇ（翁其亮）；ＭａｏＷｅｎｊｕｎ（毛文军）；ＹａｎｇＪｉａｎｙｅ（杨建业）ＣＹＣＬＩＣＣＨＡＮＧＥＳＯＦＬＡＣＴＡＴＥＤＥＨＹＤＲＯＧＥＮＡＳＥＩＮＣＥＲＶＩＣＡＬＭＵＣＵ...     

Case-Based Reasoning Topological Complexity Calculation of Design for Components

Directly calculating the topological and geometric complexity from the STEP (standard for the exchange of product model data, ISO 10303) file is a huge task. So, a case-based reasoning approach is presented, which is based on the similarity between the new component and the old one, to calculate the topological and geometric complexity of new components. In order to index, retrieve in historical component database, a new way of component representation is brought forth. And then an algorithm is given to extract topological graph from its STEP files. A mathematical model, which describes how to compare the similarity, is discussed. Finally, an example is given to show the result.     

鹧鸪山隧道海拔修正系数的现场测试研究

目前国内外在海拔2400m以上无海拔修正系数的实测值。以高海拔特长公路隧道鹧鸪山隧道为依托,于2003-2005年对海拔400～4000m处烟雾海拔系数进行了现场测试,研究在营运隧道通风设计中烟雾海拔高度系数的合理取值,以对鹧鸪山隧道及类似高海拔地区公路隧道营运通风设计提供依据和参考。     

安全综合检测车研究

本文介绍了安全综合检测车研究及其系统总框图；轨道状态检测，轮轨作用检测、弓网状态检测，通信信号检测四个子系统框图，安全综合检测车的计算机系统，安全综合检测车车辆技术参数。