道路线形与交通事故关系分析

道路线形是公路的骨架,是车辆运行的直接载体,控制着整个公路的路基、桥涵、交叉、沿线设施等构造物的规模和投资。在综合参考国内外研究现状的基础上,重点分析我国高速道路线形和交通安全的关系,结果表明改善道路线形是缓解和消除交通事故的一种重要手段,在设计中应把道路线形置于环境中考虑,使线形协调合理,为驾驶者提供安全、舒适的行驶条件。     

论唐婚恋传奇中的理想女性及其文化内涵

唐传奇是文言小说的成熟阶段,题材甚多,而以婚恋传奇的成就最高.在婚恋传奇中,唐代文士构筑出一批符合他们爱情期待的理想女性:这些女性容貌出众、才华卓越,大胆跨越礼教的藩篱追求爱情,极富“名妓”的特征;同时又是恪守礼教规范,柔顺卑顺、相夫教子、持家理财的典型贤妻良母.这种融情人、知己、贤妻、良母为一体的理想女性形象,其实是唐代文人在特定文化氛围中对女性的期待和建构,也是唐代文士追求情理和谐统一的婚恋心理的曲折诉求.     

Online fault diagnosis of modern process industry system based on color-spectrum

This paper proposes a new method to diagnose the system fault of the process industry based on the monitor data set of distributed control system (DCS). Firstly, it defines a homeomorphism product space named color phase space which is a Cartesian product of two-dimensional Euclidean space and three-dimensional color phase space. Secondly, it maps the DCS data to the color phase space in order to get a system color-spectrum which displays the inherent relationship of the whole system. Then, it diagnoses the system fault by observing the color change on the color-spectrum depending on the physiological characteristics that human’s eyes are more sensitive for the color change than data change.     

CG125发动机活塞连杆曲轴改进分析

改进CG125发动机气道和燃烧室形状,在保证动力性提高的同时,也会导致活塞连杆曲轴温度和强度负荷增加。采用有限元模拟分析,计算出活塞连杆曲轴改进前后的应力和活塞温度变化,通过改进活塞形状,保证了改进后发动机活塞热负荷状况良好,同时提高了活塞连杆曲轴强度。     

BPR路阻函数的改进研究

BPR函数计算路段阻抗时,没有反映出交通状况由畅通到拥挤的过程中交通量先增后减的事实,这与实际交通情况不相符,因此对BPR函数进行了改进:一种改进方法是随着拥挤程度的增加,将交通减小量与路段通行能力相加的结果作为交通量用于BPR函数,使得到的路阻值能够反映实际路况;另一种改进方法是用交通量和密度的关系式替换BPR函数的交通量,并根据前一种改进方法的思想对新得到的函数进行再改进,获得一个单调递增函数,这样可以不受路段通行能力限制,从而反映交通路况所对应的路阻.     

A Real-Time TCP Stream Reassembly Mechanism in High-Speed Network

With the continual growth of the variety and complexity of network crime means, the traditional packet feature matching cannot detect all kinds of intrusion behaviors completely. It is urgent to reassemble network stream to perform packet processing at a semantic level above the network layer. This paper presents an efficient TCP stream reassembly mechanism for real-time processing of high-speed network traffic. By analyzing the characteristics of network stream in high-speed network and TCP connection establishment process, several polices for designing the reassembly mechanism are built. Then, the reassembly implementation is elaborated in accordance with the policies. Finally, the reassembly mechanism is compared with the traditional reassembly mechanism by the network traffic captured in a typical gigabit gateway. Experiment results illustrate that the reassembly mechanism is efficient and can satisfy the real-time property requirement of traffic analysis system in high-speed network.     

多波速在扫海测量中的分析

扫海测量主要探明扫测范围内是否存在危及航道安全的障碍物,以确定最浅通航水深并绘制水下地形图.介绍了多波束在扫海测量中的作业方法,分析了工作中影响精度的主要因素, 并根据工作情况提出了相关的建议.     

乌兰察布市道路运输业发展现状及展望

阐述了内蒙古乌兰察布市交通运输业发展现状以及存在的问题,并对今后乌兰察布市道路运输业进行了展望。     

几种典型水暖式暖风系统的水路设计

通过对水暖式暖风系统的几种典型水路设计进行分析,介绍水路设计的基本要求,帮助行业相关人员了解水暖式暖风水路设计的思路。     

城市抗震救灾道路网络规划研究

科学合理地规划城市道路网络,使之满足抗震救灾需要,对于震后救援及灾后重建具有重要意义。提出了由三级网络组成的抗震救灾主干网,并给出了路段抗震可靠性的计算方法,通过路段的抗震可靠性分析,找到路网中的薄弱环节,进而提出抗震救灾主干网抗震可靠性的计算方法,为抗震救灾主干网的规划及评价提供依据。