scholarly journals BEM-DERIVED IMPEDANCE FUNCTIONS FOR 2D INHOMOGENEOUS SOIL MEDIA: AN ENGINEERING PRACTICE CASE STUDY

2020 ◽  
Vol 50 (4) ◽  
Author(s):  
GEORGIOS A. CHATZISTEFANOU ◽  
GEORGE D. MANOLIS
Author(s):  
Ville Alkkiomäki ◽  
Kari Smolander

This chapter introduces QSE, the Qualitative Service Elicitation method. It applies qualitative research procedures in service elicitation. Service engineering practice lacks lightweight methods to identify service candidates in projects with tight schedules. QSE provides a systematic method to analyze requirement material in service-oriented systems development with a feasible effort. QSE uses the procedures of the grounded theory research method to elicit service candidates from business process descriptions and business use case descriptions. The chapter describes the method with examples and a case study.


2014 ◽  
Vol 4 (1) ◽  
pp. 24
Author(s):  
Bill Williams ◽  
José Figueiredo

This study uses the characterization of contrasting modes of knowledge production to follow the activity of a group of engineers who migrated from an academic environment to a successful start-up firm. Qualitative data from interviews of two key members of the team were used to characterize their activities in the two settings. The authors relate the engineering practice described in the interviews to the Gibbons Mode 1 and Mode 2 knowledge production phases and note the importance of a phase change in the transition between the two modes. The resultant case-study contributes material for use in role-play activity with engineering students to help develop interdisciplinary skills. The study also presents a critical analysis to evaluate the merits of the Mode 1 and Mode 2 framework for analysis of engineering practice at the level of the firm.


2021 ◽  
Vol 9 (9) ◽  
pp. 1005
Author(s):  
Baiwei Feng ◽  
Chengsheng Zhan ◽  
Zuyuan Liu ◽  
Xide Cheng ◽  
Haichao Chang

Basis functions are key in constructing interpolation equations in hull surface modification based on radial basis functions (RBF) interpolation. However, few have studied the selection of basis functions in depth. By comparing several typical basis functions through a theoretical analysis and two-dimensional modification examples, the Wendland ψ3,1 (W) function is selected. The advantages of hull form surface modification based on W function interpolation are further validated through a case study. Finally, the modification method is used to optimize a trimaran model. An optimal hull form with fair lines is obtained, and its wave-making resistance coefficient and total resistance are reduced by 8.3% and 3.8%, respectively, compared to those of the original model. These findings not only further illustrate that the W function is relatively suitable for hull form surface modification, but also validate the feasibility and value of the RBF interpolation-based surface modification method in engineering practice.


Author(s):  
Ionel Rusa ◽  
Cornel Marin

Abstract In the engineering practice, knowing the technical condition of industrial equipment under operating results shortening of repairs, repairs machinery to smart planning based on the time evolution of bearing wear, detect and correct errors on their installation or repair. This is one of the most important objectives of proactive maintenance; maintenance engineer must follow and monitor the wear of equipment with moving parts to prevent damage and removing them permanently from service, ensuring repair costs as low as possible. The aim of this paper is to present a particular case study on vibro- acoustic diagnosis of equipment and components subject to wear during operation to prevent catastrophic damage, as well as human and material losses.


2014 ◽  
Vol 51 (4) ◽  
pp. 354-367 ◽  
Author(s):  
Mohamed El-Kady ◽  
Abdullah Alsadaawi ◽  
Saeed Al-Zahrani ◽  
Abdelhamid Ajbar

This paper presents the main features of a study carried out by the higher education authority in the Kingdom of Saudi Arabia for developing a practical framework for formulating and assessing learning outcomes in electrical engineering education. The proposed learning outcomes were based on a compilation of different international accreditation frameworks. The formulated learning outcomes were grouped into four learning areas: (1) engineering sciences, (2) engineering analysis and investigation, (3) engineering design and (4) engineering practice. The paper also presents the main elements of a proposed standardized exit exam to test the developed learning outcomes. A table of specification was constructed that maps the developed learning outcomes with the test questions distributed over various learning levels. It allows the transformation of the developed learning outcomes into balanced questions to be used in an exit exam. The paper also discusses the implications of the proposed exit exam on electrical engineering education, and presents the results of a trial exam carried out recently.


2013 ◽  
Vol 671-674 ◽  
pp. 3-9 ◽  
Author(s):  
Cheng Hua Wang ◽  
Mei Na Zhang

An improved grey system model GM(1,1) was proposed in this paper, considered that the large difference between predicted results and measured load-settlement relationship results of bored piles, in which the prediction results were given by the original theory. The complete and incomplete load-settlement curves from pile loading tests were fitted and predicated by the improved grey model. The results calculated with empirical equations or methods in technical code for building pile foundations were compared with those predicted with the improved grey model. Analysis of a case study showed that the results predicted by the improved grey theory model GM(1,1) had higher precision, which demostrated that this improved theory was of significance in engineering practice.


2013 ◽  
Vol 671-674 ◽  
pp. 1435-1440
Author(s):  
Bin He ◽  
Jin Lai Pang ◽  
Cheng Qing Liu

For particular change of function, factories are sometimes to be retrofitted into specific buildings with insertion of additional floors. Conventionally, there are two methods in retrofit of factories when additional floor is needed. One is the reconstruction of a secondary structure inside the existing building, while the other is the so called direct construction of additional floor. The latter is preferred on particular occasions due to the simplification of procedure. However, strengthening is still required in this case for the loads induced by extra floor may impose an adverse effect on existing strucutre. In this study, the rubber isolation is introduced into retrofit of factories. Based on case study, its effect in isolating earthquake is evaluated, and relative discussion is also made with energy balance concept. The design procedure of retrofit design of factories with additional floors is discussed in this study, which may provide instruction in applying this technology into engineering practice.


Author(s):  
I S Murgatroyd ◽  
A Hodgson ◽  
R H Weston

In order to remain competitive, manufacturing enterprises must be able to adapt their business processes, and the associated resources and information systems, to ongoing change. This paper highlights the shortcomings of current business process re-engineering practice and proposes that there is a requirement for a business process for ‘process visualization and improvement’. A framework and methodology for the above business process are described and a case study utilizing the framework is detailed. It is concluded that the process visualization and improvement framework enabled a wide range of company personnel to participate in the case study exercise, to contribute to improved processes and subsequently to hold the view that a significant improvement over previous best practice had been achieved.


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