scholarly journals Concise Review: Organ Engineering: Design, Technology, and Integration

Stem Cells ◽  
2016 ◽  
Vol 35 (1) ◽  
pp. 51-60 ◽  
Author(s):  
Gaurav Kaushik ◽  
Jeroen Leijten ◽  
Ali Khademhosseini
Keyword(s):  
Engineering Design ◽  
Design Technology ◽  
Organ Engineering ◽  
Concise Review

Design Method about Spherical Diaphragm Sealing of Tube Channel in High Pressure Heat Exchanger

2012 ◽  
Vol 538-541 ◽  
pp. 2164-2168
Author(s):  
Sun Yi Chen
Keyword(s):  
High Pressure ◽  
Heat Exchanger ◽  
Engineering Design ◽  
Design Method ◽  
Function Analysis ◽  
Arch Height ◽  
Design Technology ◽  
Engineering Structure ◽  
And Function ◽  
Tube Channel

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.

scholarly journals Engineering Design Education based on Three Essential Design Technology Factors

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

scholarly journals Exploring Secondary Students’ Alternative Conceptions about Engineering Design Technology

2019 ◽  
Vol 9 (1) ◽  
pp. 45 ◽  
Author(s):  
Anila Asghar ◽  
Ying-Syuan Huang ◽  
Kenneth Elliott ◽  
Yannick Skelling
Keyword(s):  
Engineering Design ◽  
Secondary Students ◽  
Science And Technology ◽  
Alternative Conceptions ◽  
Scientific Models ◽  
Technological Systems ◽  
Technology Curriculum ◽  
Design Technology ◽  
Scientific Explanations ◽  
Mechanistic Reasoning

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.

scholarly journals TOWARDS A DEBATE ON THE POSITIONING OF ENGINEERING DESIGN

2021 ◽  
Vol 1 ◽  
pp. 3169-3178
Author(s):  
Chris McMahon ◽  
Claudia Eckert ◽  
Georges Fadel
Keyword(s):  
Earth Sciences ◽  
Engineering Design ◽  
Critical Analysis ◽  
Design Research ◽  
Research Community ◽  
Academic Disciplines ◽  
Design Knowledge ◽  
Engineering Practice ◽  
Design Technology ◽  
The Relationship

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.

Resolution and measurement in the scanning electron microscope

1987 ◽  
Vol 45 ◽  
pp. 534-537 ◽  
Author(s):  
Michael T. Postek
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Engineering Design ◽  
Resolving Power ◽  
Practical Applications ◽  
Instrument Resolution ◽  
Accurate Definition ◽  
Definition Of ◽  
Scanning Electron ◽  
Better Than

The term ultimate resolution or resolving power is the very best performance that can be obtained from a scanning electron microscope (SEM) given the optimum instrumental conditions and sample. However, as it relates to SEM users, the conventional definitions of this figure are ambiguous. The numbers quoted for the resolution of an instrument are not only theoretically derived, but are also verified through the direct measurement of images on micrographs. However, the samples commonly used for this purpose are specifically optimized for the measurement of instrument resolution and are most often not typical of the sample used in practical applications.SEM RESOLUTION. Some instruments resolve better than others either due to engineering design or other reasons. There is no definitively accurate definition of how to quantify instrument resolution and its measurement in the SEM.

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