Cognitive apprenticeship and T-shaped instructional design in computational fluid mechanics: Student perspectives on learning

Author(s):  
Sónia IS Pinto ◽  
Susan M Zvacek

The goal of the present work was to explore student perspectives about a course module designed with cognitivist and constructivist learning theories, the cognitive apprenticeship instructional model, and a T-shaped design, specifically the first module of a Computational Fluid Mechanics curricular unit within a Master of Computational Mechanics program. This module was redesigned accordingly after the professor participated in a faculty development course, Engineering Education Theory and Practice, at the Faculty of Engineering, University of Porto. Student perspectives on the efficacy of the redesigned course were solicited, along with those from students who had previously taken the course. Students who participated in the revised course module reported higher levels of satisfaction than students from the previous iteration of the course and were more likely to recognize the value of specific instructional activities. This paper describes the revision of the course module and a comparison of the student feedback before and after those revisions.

Author(s):  
F. Battista ◽  
R. Ficarelli ◽  
A. Perrotta ◽  
P. Gualtieri ◽  
C. M. Casciola ◽  
...  

Abstract Purpose The main objective of this work is to investigate hemodynamics phenomena occurring in EVAS (Endo Vascular Aneurysm Sealing), to understand if and how they could lead to type 1a endoleaks and following re-intervention. To this aim, methods based on computational fluid mechanics are implemented as a tool for checking the behavior of a specific EVAS configuration, starting from the post-operative conditions. Pressure and velocity fields are detailed and compared, for two configurations of the Nellix, one as attained after correct implantation and the other in pathological conditions, as a consequence of migration or dislocation of endobags. Methods The computational fluid dynamics (CFD) approach is used to simulate the behavior of blood within a segment of the aorta, before and after the abdominal bifurcation. The adopted procedure allows reconstructing the detailed vascular geometry from high-resolution computerized tomography (CT scan) and generating the mesh on which the equations of fluid mechanics are discretized and solved, in order to derive pressure and velocity field during heartbeats. Results The main results are obtained in terms of local velocity fields and wall pressures. Within the endobags, velocities are usually quite regular during the whole cardiac cycle for the post-implanted condition, whereas they are more irregular for the migrated case. The largest differences among the two cases are observed in the shape and location of the recirculation region in the rear part of the aorta and the region between the endobags, with the formation of a gap due to the migration of one or both of the two. In this gap, the pressure fields are highly different among the two conditions, showing pressure peaks and pressure gradients at least four times larger for the migrated case in comparison to the post-implanted condition. Conclusions In this paper, the migration of one or both endobags is supposed to be related to the existing differential pressures acting in the gap formed between the two, which could go on pushing the two branches one away from the other, thus causing aneurysm re-activation and endoleaks. Regions of flow recirculation and low-pressure drops are revealed only in case of endobag migration and in presence of an aneurysm. These regions are supposed to lead to possible plaque formation and atherosclerosis.


1987 ◽  
Author(s):  
HARRY DWYER ◽  
KENICHI MATSUMO ◽  
SOKOL IBRANI ◽  
M. HAFEZ

2013 ◽  
Vol 87 ◽  
pp. 1
Author(s):  
Rekha R. Rao ◽  
S.A. Roberts ◽  
David R. Noble ◽  
Patrick D. Anderson ◽  
Jean-Francois Hétu

Author(s):  
Robin Bell

AbstractEntrepreneurship educators can maximise the effectiveness of their delivery by having a firm grasp of the different educational philosophies and theories that underpin entrepreneurship education pedagogy and practice. A particular educational philosophical orientation underlies, directs, and drives educator practices and should align with what the teaching seeks to impart and achieve, and the roles the learners and educator play in the learning process. Whilst educators might not always be explicitly aware of their philosophical orientation, it will direct and drive their pedagogic practice and have implications for what they deliver, and how they deliver it. The benefits of bringing together different learning theories, philosophies, and approaches for entrepreneurship education has previously been posited in the literature. However, it has been highlighted that connections between educational theory and practice are limited, and that the field of entrepreneurship education could be advanced through providing links between education literature, theory, and learning. This paper advances the literature by linking educational philosophy and theory to entrepreneurship education and pedagogy in higher education. It discusses and highlights how behaviourism, cognitivism, constructivism, and humanism can be used to underpin and support learning in entrepreneurship education. This meets calls for the conceptualisation of how educational philosophies and theories can be integrated into entrepreneurship education to support learners.


2011 ◽  
Vol 71-78 ◽  
pp. 3868-3873
Author(s):  
Li Jin Ma ◽  
Hong Juan Zou ◽  
Jia Shun Zhu

According to the micro-climate environment outdoor of the region, wind environment outdoor which is under planning programming can be done analog computation using computational fluid mechanics PHOENICS software. A set of comprehensive prediction and assessment system which is mainly focused on outdoor environment composite index WBGT can be established combining with assessment method on wind environment outdoor of predecessors in order to more accurately and humanly predict and assess the wind environment outdoor, bring safe, comfortable and healthy outdoor environment and provide references for the assessment and design of green residential district.


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