scholarly journals Correction to: Systemic Design Engineering

2019 ◽  
pp. C1-C1
Author(s):  
Jon Wade ◽  
Steven Hoffenson ◽  
Hortense Gerardo
Keyword(s):  
Design Engineering ◽  
Systemic Design

Systemic Design Engineering

2017 ◽  
Vol 27 (1) ◽  
pp. 721-735 ◽  
Author(s):  
Jon Wade ◽  
Steven Hoffenson ◽  
Hortense Gerardo
Keyword(s):  
Design Engineering ◽  
Systemic Design

Systemic Design Engineering

2018 ◽  
pp. 192-202
Author(s):  
Jon Wade ◽  
Steven Hoffenson ◽  
Hortense Gerardo
Keyword(s):  
Design Engineering ◽  
Systemic Design

Use of the Magnetostatic Analogue In Electromagnetic Lens Engineering

1970 ◽  
Vol 28 ◽  
pp. 360-361
Author(s):  
John W. Coleman
Keyword(s):  
Boundary Conditions ◽  
High Performance ◽  
Force Fields ◽  
Optical Design ◽  
Direct Conversion ◽  
Design Engineering ◽  
Design Data ◽  
Scalar Potentials ◽  
Geometric Elements ◽  
At Will

In the design engineering of high performance electromagnetic lenses, the direct conversion of electron optical design data into drawings for reliable hardware is oftentimes difficult, especially in terms of how to mount parts to each other, how to tolerance dimensions, and how to specify finishes. An answer to this is in the use of magnetostatic analytics, corresponding to boundary conditions for the optical design. With such models, the magnetostatic force on a test pole along the axis may be examined, and in this way one may obtain priority listings for holding dimensions, relieving stresses, etc..The development of magnetostatic models most easily proceeds from the derivation of scalar potentials of separate geometric elements. These potentials can then be conbined at will because of the superposition characteristic of conservative force fields.

scholarly journals Method for assessment of matching of total ankle joint endoprostheses based on CT data

2020 ◽  
Vol 6 (3) ◽  
pp. 396-397
Author(s):  
Heiner Martin ◽  
Josephine Wittmüß ◽  
Thomas Mittlmeier ◽  
Niels Grabow
Keyword(s):  
Cross Sections ◽  
Spline Functions ◽  
Moments Of Inertia ◽  
Cad System ◽  
Principal Moments Of Inertia ◽  
Principal Axes ◽  
Ct Data ◽  
The One ◽  
Relative Differences ◽  
Systemic Design

AbstractThe investigation of matching of endoprosthesis tibial components to the bone cross section is of interest for the manufacturer as well as for the surgeon. On the one hand, a systemic design of the prosthesis and the assortment is possible, on the other hand, a better matching implantation is enabled on the basis of experience of this study. CT sections were segmented manually using a CAD system and fitted by spline functions, then superseded with cross sections of the tibial component of a modified Hintermann H3 prosthesis. The principal moments of inertia, the direction of the principal axes and the area of the section were evaluated. Based on the relative differences of the principal moments of inertia, recommendations for application of the different prosthesis size and its selection with the surgery can be made.

scholarly journals Design Engineering, Synthesis Protocols, and Energy Applications of MOF-Derived Electrocatalysts

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Amr Radwan ◽  
Huihui Jin ◽  
Daping He ◽  
Shichun Mu
Keyword(s):  
Electronic Conductivity ◽  
Reduction Reaction ◽  
Design Engineering ◽  
High Porosity ◽  
Hydrogen Fuel ◽  
Fuel Production ◽  
Active Centers ◽  
Energy Applications ◽  
The Core ◽  
Metal Organic

AbstractThe core reactions for fuel cells, rechargeable metal–air batteries, and hydrogen fuel production are the oxygen reduction reaction (ORR), oxygen evolution reaction (OER), and hydrogen evolution reaction (HER), which are heavily dependent on the efficiency of electrocatalysts. Enormous attempts have previously been devoted in non-noble electrocatalysts born out of metal–organic frameworks (MOFs) for ORR, OER, and HER applications, due to the following advantageous reasons: (i) The significant porosity eases the electrolyte diffusion; (ii) the supreme catalyst–electrolyte contact area enhances the diffusion efficiency; and (iii) the electronic conductivity can be extensively increased owing to the unique construction block subunits for MOFs-derived electrocatalysis. Herein, the recent progress of MOFs-derived electrocatalysts including synthesis protocols, design engineering, DFT calculations roles, and energy applications is discussed and reviewed. It can be concluded that the elevated ORR, OER, and HER performances are attributed to an advantageously well-designed high-porosity structure, significant surface area, and plentiful active centers. Furthermore, the perspectives of MOF-derived electrocatalysts for the ORR, OER, and HER are presented.

scholarly journals ENGINEERING STUDENT ATTAINMENT AND ENGAGEMENT THROUGHOUT THE DESIGN PROCESS

2021 ◽  
Vol 1 ◽  
pp. 1373-1382
Author(s):  
Avril Thomson ◽  
Hilary Grierson
Keyword(s):  
Design Process ◽  
Engineering Students ◽  
Project Work ◽  
Design Engineering ◽  
Engineering Student ◽  
Online Questionnaire ◽  
Main Research ◽  
Research Questions ◽  
Design Students ◽  
Major Project

AbstractThe paper reports on a study that aims to gain an understanding of how senior engineering design students engage and attain throughout the various stages of the design process during a major design project. Following a literature review it sets out to answer 3 main research questionsQ1. Do students engage more with certain stages of the design process during major project work?;Q2. Do students attain better during certain phases of the design process during major project ?Q3. Is there a difference in this attainment between year groups of the same degree programme ?The methodology adopted employs an analysis of marks and an online questionnaire to collect data. Patterns and trends in how senior BEng and MEng Product Design Engineering students engage and attain within the design process are presented, identified and discussed and in turn used to inform reflection on the research questions set.

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