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2019

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Articles 1 - 30 of 288

Full-Text Articles in Engineering

The Improvement Of The Solar Air Heater Duct By Wired Ribs Utilization, Osamah Raad Skheel/Alkhafaji Sep 2019

The Improvement Of The Solar Air Heater Duct By Wired Ribs Utilization, Osamah Raad Skheel/Alkhafaji

Karbala International Journal of Modern Science

Abstract Heat transfer coefficient of the solar air heater duct (SAH) is low due increasing the thermal performance of its absorber. The present study tends to enhance the thermal characteristics of the SAH by adopting the wired ribs on the absorber under different ribs dimensions and arrangements. A rectangular duct is used to form the SAH with length L=1500mm, width w=100mm and height H=30mm. The used heat fluxes over the absorber are 1000W/m2 and 500W/m2 while the operated Reynolds number range is 708 ~ 6375. The utilized wired ribs are arranged over the absorber so as ...


Analytical Approach To Investigation Of Free Vibration Of Thin Rectangular Plate Immersed In Fluid, Resting On Winkler And Pasternak Foundations, Obanishola Safiq, Gbeminiyi Sobamowo, Saheed Salawu Sep 2019

Analytical Approach To Investigation Of Free Vibration Of Thin Rectangular Plate Immersed In Fluid, Resting On Winkler And Pasternak Foundations, Obanishola Safiq, Gbeminiyi Sobamowo, Saheed Salawu

Karbala International Journal of Modern Science

Dynamic behaviour of free vibration of rectangular plate is investigated. This study considered an analytical approach to investigation of free vibration of thin rectangular plate immersed in fluid, resting on Winkler and Pasternak foundations.The governing nonlinear partial differential equation is analyzed using two-dimensional differential transform method. The accuracy of the analytical solutions obtained is verified with existing results in literature and confirmed in excellent agreement. Thereafter, the analytical solutions are used for investigation of effect of elastic foundation, fluid and aspect ratio on vibrating plate.From the result, it is observed that, increase elastic foundation parameters increases natural frequency ...


Academic Skill Learning And The Problem Of Complexity I: Creational Purposeful Integrated Capability At Skill (Cpics), Martin F. Gardiner Sep 2019

Academic Skill Learning And The Problem Of Complexity I: Creational Purposeful Integrated Capability At Skill (Cpics), Martin F. Gardiner

Northeast Journal of Complex Systems (NEJCS)

Physical and mental skills are intended to achieve success at acting purposefully. As capability at any skill increases, the need to adjust details of application to complexity of context and goals will increase as well. It will become more and more important to prepare mentally for what I now term Creational Purposeful Integrated Capability at Skill (CPICS). This paper develops what I mean by CPICS. Theory concerning Complex Dynamical Systems (CDS) such as the brain and other evidence points to the likelihood that the mental operations by which our brain produces any kind of skillful behavior cannot remain constant, but ...


A Patterning Approach To Complexity Thinking And Understanding For Students: A Case Study, Shae L. Brown Sep 2019

A Patterning Approach To Complexity Thinking And Understanding For Students: A Case Study, Shae L. Brown

Northeast Journal of Complex Systems (NEJCS)

Complexity thinking and understanding are vital skills for young people in these times of uncertainty and change. Such skills contribute to resilience and capacities for adaptivity and innovation. Within my teaching practice I have found students to be aware of complex dynamics, uncertainty and change, both in their lives and in the world. However, the current curriculum lacks language and process to conceptualise, articulate and develop complexity understanding. To address this problem, I developed and introduced a patterns-based design and process to a cohort of Australian secondary students. Comprising flowform patterning together with ecological metaphors, the design forms a conceptual ...


Being In Uncertainties: An Inquiry-Based Model Leveraging Complexity In Teaching-Learning, Diane Rosen Sep 2019

Being In Uncertainties: An Inquiry-Based Model Leveraging Complexity In Teaching-Learning, Diane Rosen

Northeast Journal of Complex Systems (NEJCS)

Education is traditionally structured as a closed system, privileging result-driven methods that offer control and predictability. In recent decades this reductionist approach has been effectively challenged by interdisciplinary work in complex systems theory, revealing myriad levels of orderly disorder that make either-or, linear instruction an inadequate norm. Narrowing the broad implications of a complexity lens on education, this paper focuses on generative uncertainty in teaching-learning, a paradoxical state of epistemological and creative growth described by English poet John Keats as "the negative capability of being in uncertainties, mysteries, doubts." Opportunities to advance this potentiating capacity are especially abundant in constructivist ...


Creativity As An Emergent Property Of Complex Educational System, Ceire Monahan, Mika Munakata, Ashwin Vaidya Sep 2019

Creativity As An Emergent Property Of Complex Educational System, Ceire Monahan, Mika Munakata, Ashwin Vaidya

Northeast Journal of Complex Systems (NEJCS)

The importance of creativity in education has been discussed often in the literature. While there remains no agreed-upon definition of creativity, the psychological literature points to traits of a creative person. These include the ability to think outside the box, make connections between seemingly disparate ideas, and question norms. The literature provides several examples of classroom experiments to help foster creativity in the classroom. In science and mathematics, we can start by getting students to recognize mathematics and the sciences as being creative endeavors. While these attempts are noteworthy, they are not necessarily aligned with instructional practices. In this article ...


Rethinking Educational Reforms Through A Complex Dynamical Systems Approach: Preliminary Report From An Empirical Research, Eugenia Tsiouplis, Dimitrios Stamovlasis Sep 2019

Rethinking Educational Reforms Through A Complex Dynamical Systems Approach: Preliminary Report From An Empirical Research, Eugenia Tsiouplis, Dimitrios Stamovlasis

Northeast Journal of Complex Systems (NEJCS)

Literature on educational reforms is rich of cases where changes have been attempted, without however to attain success. Likewise the Greek education system had experienced a lot of reforms, most of which have failed to make the intended changes and they attenuated shortly after their implementation or they ceased at the stage of legislative planning. On the other hand, the traditional research have failed to develop a coherent theoretical perspective and provide satisfactory interpretations of the perpetually unsuccessful reforms. This paper is part of wider project which attempts to address the above issue following the Complex Dynamical Systems (CDS) perspective ...


Environmentally Responsible Land Use, Spring/Summer 2010, Issue 22 Sep 2019

Environmentally Responsible Land Use, Spring/Summer 2010, Issue 22

Sustain Magazine

No abstract provided.


Sustainable Communities, Fall/Winter 2010, Issue 21 Sep 2019

Sustainable Communities, Fall/Winter 2010, Issue 21

Sustain Magazine

No abstract provided.


Sustainable Building, Spring/Summer 2009, Issue 20 Sep 2019

Sustainable Building, Spring/Summer 2009, Issue 20

Sustain Magazine

No abstract provided.


Environmental History, Fall/Winter 2009, Issue 19 Sep 2019

Environmental History, Fall/Winter 2009, Issue 19

Sustain Magazine

No abstract provided.


Student Research, Spring/Summer 2008, Issue 18 Sep 2019

Student Research, Spring/Summer 2008, Issue 18

Sustain Magazine

No abstract provided.


Evolving Pollution Prevention, Fall/Winter 2008, Issue 17 Sep 2019

Evolving Pollution Prevention, Fall/Winter 2008, Issue 17

Sustain Magazine

No abstract provided.


Climate Change, Spring/Summer 2007, Issue 16 Sep 2019

Climate Change, Spring/Summer 2007, Issue 16

Sustain Magazine

No abstract provided.


Our Energy Future, Fall/Winter 2007, Issue 15 Sep 2019

Our Energy Future, Fall/Winter 2007, Issue 15

Sustain Magazine

No abstract provided.


Land Conservation, Spring/Summer 2006, Issue 14 Sep 2019

Land Conservation, Spring/Summer 2006, Issue 14

Sustain Magazine

No abstract provided.


Pollution And Heart Disease, Fall/Winter 2006, Issue 13 Sep 2019

Pollution And Heart Disease, Fall/Winter 2006, Issue 13

Sustain Magazine

No abstract provided.


Green Cities, Spring/Summer 2005, Issue 12 Sep 2019

Green Cities, Spring/Summer 2005, Issue 12

Sustain Magazine

No abstract provided.


Global Sustainability, Fall/Winter 2005, Issue 11 Sep 2019

Global Sustainability, Fall/Winter 2005, Issue 11

Sustain Magazine

No abstract provided.


Environmental Justice, Spring/Summer 2004, Issue 10 Sep 2019

Environmental Justice, Spring/Summer 2004, Issue 10

Sustain Magazine

No abstract provided.


Kentucky's Environmental Future, Fall/Winter 2004, Issue 9 Sep 2019

Kentucky's Environmental Future, Fall/Winter 2004, Issue 9

Sustain Magazine

No abstract provided.


Urban Ecology, Spring/Summer 2003, Issue 8 Sep 2019

Urban Ecology, Spring/Summer 2003, Issue 8

Sustain Magazine

No abstract provided.


Urban Regeneration, Fall/Winter 2003, Issue 7 Sep 2019

Urban Regeneration, Fall/Winter 2003, Issue 7

Sustain Magazine

No abstract provided.


Urban Air Quality, Spring/Summer 2002, Issue 6 Sep 2019

Urban Air Quality, Spring/Summer 2002, Issue 6

Sustain Magazine

No abstract provided.


Sustainability Of Industrialized Agriculture, Fall/Winter 2002, Issue 5 Sep 2019

Sustainability Of Industrialized Agriculture, Fall/Winter 2002, Issue 5

Sustain Magazine

No abstract provided.


Urban Design For Environmental Protection, Spring/Summer 2001, Issue 4 Sep 2019

Urban Design For Environmental Protection, Spring/Summer 2001, Issue 4

Sustain Magazine

No abstract provided.


Stream Restoration, Spring/Summer 2011, Issue 24 Sep 2019

Stream Restoration, Spring/Summer 2011, Issue 24

Sustain Magazine

No abstract provided.


Renewable Energy, Fall/Winter 2011, Issue 23 Sep 2019

Renewable Energy, Fall/Winter 2011, Issue 23

Sustain Magazine

No abstract provided.


Biodiversity, Fall/Winter 2012, Issue 25 Sep 2019

Biodiversity, Fall/Winter 2012, Issue 25

Sustain Magazine

No abstract provided.


Active Transportation, Spring/Summer 2012, Issue 26 Sep 2019

Active Transportation, Spring/Summer 2012, Issue 26

Sustain Magazine

No abstract provided.