重庆两江大桥桥梁文化展示内容及方法研究

桥梁是城市的名片,是城市地域文化历史的浓缩与载体。对桥梁文化展现的必要性、展示内容和方法进行分析,并将分析结果与重庆两江大桥桥梁文化展现设计进行对比,提出桥梁文化展现的基本思路。     

望江情

午后,正在小憩,突然电话铃声响起,好友李强约我和他一起去修车。他的天虹90踏板车因多次翻越秦岭,现在只能跑40km/h的时速,不得已进维修部了。放下电话,推出我的“老马”———CY80直奔友谊路。春风拂面,格外清爽,不一会儿便到了友谊路。李强的车已被维修工“开膛破肚”了,我和     

门式起重机承轨槽施工技术

介绍门式起重机走行轨基础承轨槽模具的设计、制作、安装工艺 ,以及承轨槽关键部位尺寸精度控制的有关技术要求和施工经验 ,使承轨槽关键部位施工精度达到较高要求。     

建筑工程投标报价策略和作价技巧

本文结合工程实例，运用技术经济分析方法，对当前建筑企业投标竞争中的报价策略问题进行了定性和定量的分析，对作价的技巧进行了深入探讨。     

各类传入纤维在针刺镇痛中的作用

<正> 实验证明针刺可兴奋各类纤维,但哪类纤维是传入镇痛冲动的?我们曾以清醒家兔反射性下颌运动作为痛指标,证明各类纤维的镇痛作用为Ⅰ.Ⅱ类<Ⅰ、Ⅱ、Ⅲ类<Ⅰ、Ⅱ、Ⅲ、Ⅳ类,亦即有细纤维参与,可以增强镇痛效应。但对于细纤维(包括Aδ波及C波)是否具     

High accuracy NURBS interpolation for five-axis machine of table-rotating/spindle-tilting type

In this paper, the definition of NURBS curve and a speed-controlled interpolation in which the feed rate is automatically adjusted in order to meet the specified chord error limit were discussed. Besides those, a definition of linear interpolation error of post-processed data was proposed, which should be paid more attention to because it will not only reduce quality of the surface but also may cause interference and other unexpected trouble. In order to control the error, a robust algorithm was proposed, which successfully met a desired error limit through interpolating some essential CL data. The excellence of the proposed algorithm, in terms of its reliability and self-adaptiveness, has been proved by simulation results.