摘要：The objective of a bridge design is to produce a safe bridge that is elegant and satisfies all functionality requirements, at a cost that is acceptable to the owner. A successful bridge design must be natural, simple, original, and harmonious with its surroundings. Aesthetics is not an additional consideration in the design of a bridge, but is rather an integral part of bridge design. Both the structural configuration and the aesthetics of a bridge must be considered together during the conceptual design stage. To achieve such a task, the bridge design engineer must have a good understanding of structural theory and bridge aesthetics.

摘要：Objectives Professional identity plays an important role in the long-term development of nurses,and it will change when public health emergency *** objective of this study is to investigate the factors associated with the professional identity of nursing undergraduates in the epidemic of *** A cross-sectional survey design with convenience sampling was used.A total of 3,875 nursing undergraduates were recruited from seven universities across China from March to April 2020.A general information questionnaire was used to collect students’information,and the Professional Identity Questionnaire for Nurse Students was used to survey their professional identity during the early and later stages of the first wave of the COVID-19 *** The score of professional identity in the later stage(59.49±12.41)was higher than that in the early stage(56.96±12.61).The stepwise regression indicated that several factors were associated with professional identity,including gender,residential area,major,impact of the epidemic on intention to work after graduation,reasons for choosing nursing major and students’scores of professional identity in early *** Nursing educators can utilize the positive impact of responding to public health emergencies to increase the professional identity of ***,educators should give those students with lower professional identity more targeted education to cultivate their professional identity after the occurrence of public health emergencies.

摘要：基于中国人多地少的国情,选择人口密集的湖南省望城县农村住宅为设计对象,提出了"节能省地型"农村住宅设计方案。方案充分考虑了当地冬冷夏热地区的气候条件和居住者的生活需求,采用上下二层、独立院落设计,外形尽量体现江南建筑特色。方案充分体现了新农村住宅建设中的生态设计理念和设计策略,包括利用太阳能、地下水、沼气等能源和技术手段,具有经济、环保等特点。

摘要：通过分析苏州园林的历史,园林构成及建园手法,阐述了传统文化思想在苏州园林中的体现,并探讨了苏州园林建设对现代城市建设的借鉴意义,最后指出苏州园林是我国古代文化精髓的体现,应继承和发扬它的风格。

摘要：介绍了中国传统建筑的产生背景,归纳了中国传统建筑的特点,分析了当今中国城市建设出现的问题,通过具体实例,对"新中式"风格的建筑进行了探讨,指出建筑从业人员应从传统中吸取精髓,探索出继承和发展中国传统建筑文化的新思路。

摘要：以长沙望城县地区为例,收集调查了长沙市周边农村地区农民生活居住的基本情况,同时结合相关资料,基于该地区的地形、地貌及长期的气候特点,在相关生态设计方法的基础上,提出了若干种适合当地农村住宅的生态设计模式。

摘要：The Dongshuimen Bridge over the Yangtze River and the Qiansimen Bridge over the Jialing River in Chongqing,China are located at the tip of the Yuzhong ***,they are called the Twin River *** are double deck structures carrying four lanes of traffic on their upper decks and two transit tracks on their lower *** girders are steel truss structures with orthotropic plates and the towers are made of *** were carefully considered for the design of these bridges because of their visibility in the city and their neighboring landmarks.

摘要：造桥是一种艺术。一个艺术家的修养有不同的层次。一个工程师从学校里接受了许多不同的训练,使他们毕业后可以开始参加桥梁设计的行列。在不断的努力下,渐渐提升,最后达到自成一家的大师境界。

摘要：为给主跨100~300 m的中、大跨度桥梁设计提供参考,研究缆索辅助组合体系桥梁(索辅梁桥)的受力及结构特征;结合20余座索辅梁桥的设计实践,对索辅梁桥设计关键技术进行总结。该类桥梁适用于梁体高度不受限的峡谷、沟壑等桥位,或不具备设置高耸塔、拱结构时的桥梁设计情况,其基本设计原则为:可根据索辅梁桥的主跨跨度公式估算其主跨跨度适用范围;索辅梁桥结构体系优先采用整体固结体系;梁体需具有较强的竖向抗弯及抗剪承载能力;桥塔及拱结构采用轻型化的造型;缆索布置须使全桥受力均匀;锚固构造应具有传力直接、减小局部受力的特点。

摘要：介绍了攀钢铁水炉外脱硫的发展。就喷枪经历单孔直筒型到多孔倒 Y型的转变、脱硫剂从电石、石灰型到含镁型的发展、工艺参数优化发展进行了介绍。铁水炉外脱硫量从设计的 2 2 0 .9万 t/ a发展到 2 0 0 2年的 380万 t/ a,脱硫效率达 88%以上。 2 0 0 3年铁水脱硫前硫的质量分数为 0 .0 5 8% ,脱硫后硫的质量分数为 0 .0 0 86 % ,最低达到0 .0 0 1% ;脱硫成本达到 12 .78元 / t。铁水炉外脱硫满足了炼钢工序冶炼低硫钢的需要。