Research on Urban Road Engineering Design Technology

2021 ◽  
2012 ◽  
Vol 538-541 ◽  
pp. 2164-2168
Author(s):  
Sun Yi Chen

Spherical diaphragm seal dish of tube channel open end in high pressure heat exchanger is a new engineering structure that used in petrochemical hydrogenation unit, and its design technology is not reported now. It is inconvenience to analyze each case by limited element method. Design method of formulas is proposed to calculate both radial offset displacement and its thickness of spherical diaphragm based on shell elasticity mechanics. Relation formulas are deduced about arch height, open end radius, offset displacement by geometry. Two presuppositions are deduced for spherical diaphragm successful to run according to technology theory and function analysis of seal dish structure, which can be used for engineering design.


2007 ◽  
Vol 10 (4) ◽  
pp. 5-16
Author(s):  
Cha Sung Woon ◽  
김민수 ◽  
Kyung soo Lee ◽  
Dae Eun Kim ◽  
Lee Soo Hong

2020 ◽  
Vol 6 (3) ◽  
pp. 53
Author(s):  
Guoxiang Zhang

<p>With the rapid development of modern economy, the scale of cities is constantly expanding and the population is constantly growing. Strengthening urban construction has become one of the important work contents of socialist modernization in China. To build a modern city, road construction is the key work of urbanization. Subgrade is the most important construction link in urban road construction and the important foundation of road engineering. In this paper, combined with the specific conditions of urban roads, the construction technology and management measures of urban road subgrade are deeply explored, and perfect construction schemes and management measures are formulated to provide more reliable reference basis for promoting urban development and construction.</p>


2019 ◽  
Vol 9 (1) ◽  
pp. 45 ◽  
Author(s):  
Anila Asghar ◽  
Ying-Syuan Huang ◽  
Kenneth Elliott ◽  
Yannick Skelling

This paper presents the assessment items that were developed by science and technology teachers in Québec to explore their students’ alternative ideas about engineering design technology and technological systems. These assessment items were administered to Secondary Cycle One students in Francophone and Anglophone schools in Québec to elicit their ideas about the foundational technology concepts included in the science and technology curriculum. Students’ responses are presented to share their alternative and scientific explanations. In addition, various approaches to facilitate a deeper understanding of scientific models and mechanistic reasoning in students are also discussed.


2021 ◽  
Vol 1 ◽  
pp. 3169-3178
Author(s):  
Chris McMahon ◽  
Claudia Eckert ◽  
Georges Fadel

AbstractThis paper is an invitation to a debate on the positioning of engineering design as a field of research. The paper lists a multiplicity of interpretations of design, questioning whether they are sufficient to describe engineering design in all its variety. Following a critical analysis of attempts to describe design's unique characteristics, and observations on the nature of design made from outside of the design research community, it presents a list of situations of design that the authors have observed in engineering practice, describing especially the relationship between design, technology and society. The paper then explores what these situations imply about the questions researchers should ask about the nature of design knowledge and expertise, and examines how the different situations might be categorised, before exploring the positioning of engineering design research with respect to other academic disciplines, in particular management and the human and earth sciences. The paper concludes with a call to a debate on the nature of engineering design with the aim to define this field more clearly to ourselves and to others.


2013 ◽  
Vol 726-731 ◽  
pp. 3573-3579
Author(s):  
Zhi Zhong Su ◽  
Dong Yi Zhang ◽  
Shuai Zhang

Green road design concept is a design concept of road engineering design,which is in order to harmonize the human, motor vehicle, road and their surrounding environments, which is a comprehensive design concept of moderation, coordination and mutualism. That is said the devotion in environmental protection and landscape should also be enlarged, in addition to satisfying the road usage technique condition in the road engineering design. The road engineering design should not only satisfy a safety, fast and convenient function of the road, but also should keep an environmental protection, beauty, flowing freely of the landscape design. These will not only create an keeping vigilance and excitement beautiful work space for the drivers, but also can provide a fascinating, delightful feeling and an enjoyment of the beauty of the travel conditions and landscape for the visitors in the meantime. This is an inevitable request in promoting district economy virtuous cycle, and also is an important content of the highway design in future.


Stem Cells ◽  
2016 ◽  
Vol 35 (1) ◽  
pp. 51-60 ◽  
Author(s):  
Gaurav Kaushik ◽  
Jeroen Leijten ◽  
Ali Khademhosseini

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