Arctic Pipeline Design Challenges and Current Practices: Ice Scour

Author(s):  
Ibrahim Konuk

Analysis methods used for the design of offshore pipelines against ice scour are reviewed. Implications and impact of their limitations on pipeline design are discussed. Alternative analysis methods are proposed to address the shortcomings of the current engineering design and analysis practices.

Author(s):  
Jonathan Sauder ◽  
Yan Jin

Students are frequently trained in a variety of methodologies to promote their creativity in the collaborative environment. Some of the training and methods work well, while others present challenges. A collaborative stimulation approach is taken to extend creative cognition to collaborative creativity, providing new insights into design methodologies and training. An experiment using retrospective protocol analysis, originally conducted to identify the various types of collaborative stimulation, revealed how diversity of past creative experiences correlates with collaborative stimulation. This finding aligns with previous research. Unfortunately, many current engineering design education programs do not adequately provide opportunities for diverse creative experiences. As this study and other research has found, there is a need to create courses in engineering design programs which encourage participation in diverse creative activities.


2015 ◽  
Vol 21 (7) ◽  
pp. 422-429 ◽  
Author(s):  
Lukas J. Hefty

Applying mathematics during engineering design challenges can help children develop critical thinking, problem solving, and communication skills.


2022 ◽  
Author(s):  
Maria Semeli Frangopoulou ◽  
Maryam Alimardani

Alzheimers disease (AD) is a brain disorder that is mainly characterized by a progressive degeneration of neurons in the brain, causing a decline in cognitive abilities and difficulties in engaging in day-to-day activities. This study compares an FFT-based spectral analysis against a functional connectivity analysis based on phase synchronization, for finding known differences between AD patients and Healthy Control (HC) subjects. Both of these quantitative analysis methods were applied on a dataset comprising bipolar EEG montages values from 20 diagnosed AD patients and 20 age-matched HC subjects. Additionally, an attempt was made to localize the identified AD-induced brain activity effects in AD patients. The obtained results showed the advantage of the functional connectivity analysis method compared to a simple spectral analysis. Specifically, while spectral analysis could not find any significant differences between the AD and HC groups, the functional connectivity analysis showed statistically higher synchronization levels in the AD group in the lower frequency bands (delta and theta), suggesting that the AD patients brains are in a phase-locked state. Further comparison of functional connectivity between the homotopic regions confirmed that the traits of AD were localized in the centro-parietal and centro-temporal areas in the theta frequency band (4-8 Hz). The contribution of this study is that it applies a neural metric for Alzheimers detection from a data science perspective rather than from a neuroscience one. The study shows that the combination of bipolar derivations with phase synchronization yields similar results to comparable studies employing alternative analysis methods.


Author(s):  
Liang Zhu ◽  
David Kazmer

Abstract A performance-based representation is presented, which uses the Performance Orientation Chart (POC) to aid the designer throughout an interactive design process. Assuming that all performance attributes can be expressed as functions of the design parameters, three types of graphical matrix are shown in the POC: 1) The design form depicts the performance attributes varying with the correspondent design parameters; 2) The performance dependency addresses the trade-off information among the multiple specifications based on Pareto optimal solutions; 3) The parameter constraint space defines the feasible region of the design, parameters within the, active specification limits. Guided by these graphical matrices, the designer can interactively develop the design solution to satisfy multiple specifications. The methodology was applied to a practical design problem to explicate how the POC can help the designer acquire a satisfying design solution with extensive confidence. Finally, the discussion, indicates that the performance-based representation is significantly compatible with other current engineering design methodologies.


Gamification ◽  
2015 ◽  
pp. 452-471 ◽  
Author(s):  
Christopher Franzwa ◽  
Ying Tang ◽  
Aaron Johnson ◽  
Talbot Bielefeldt

This article presents the underlying philosophy of Sustain City, an educational serious game system that engages students, particularly prospective and beginning science and engineering students, in a series of engineering design challenges. Various strategies implemented in Sustain City for achieving a balance of fun and learning are discussed, including narrative-learning synthesis, supplementing the player's actions with feedback, and the development of a sufficient guidance system. The evaluation of Sustain City deployment is also presented. The assessment confirms the values of the serious games in promoting students' interests and learning in STEM fields.


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