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2019

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Articles 2071 - 2100 of 10504

Full-Text Articles in Engineering

Analysis Of The Effects Of Dam Release Properties And Ambient Groundwater Flow On Surface Water‐Groundwater Exchange Over A 100‐Km‐Long Reach, Stephen B. Ferencz, M. Bayani Cardenas, Bethany T. Neilson Sep 2019

Analysis Of The Effects Of Dam Release Properties And Ambient Groundwater Flow On Surface Water‐Groundwater Exchange Over A 100‐Km‐Long Reach, Stephen B. Ferencz, M. Bayani Cardenas, Bethany T. Neilson

Civil and Environmental Engineering Faculty Publications

Hydroelectric dams often create highly dynamic downstream flows that promote surface water‐groundwater (SW‐GW) interactions including bank storage, the temporary storage of river water in the riverbank. Previous research on SW‐GW exchanges in dammed rivers has primarily been at single study sites, which has limited the understanding of how these exchanges evolve as dam releases travel downstream. This study evaluates how dam releases affect SW‐GW exchange continuously over a 100‐km distance. This is accomplished by longitudinally routing water releases through a synthetic river and modeling bed and bank fluid and solute exchange across transverse transects spaced along the reach. Peak and …


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, …


Editorial: Bio-Inspired Audio Processing, Models And Systems, Shih Chii Liu, John G. Harris, Mounya Elhilali, Malcolm Slaney Sep 2019

Editorial: Bio-Inspired Audio Processing, Models And Systems, Shih Chii Liu, John G. Harris, Mounya Elhilali, Malcolm Slaney

Electrical and Computer Engineering Faculty Research & Creative Works

No abstract provided.


Covalent Organic Frameworks For The Capture, Fixation, Or Reduction Of Co2, John Ozdemir, Imann Mosleh, Mojtaba Abolhassani, Lauren F. Greenlee, Robert T. Beitle Jr., M. Hassan Beyzavi Sep 2019

Covalent Organic Frameworks For The Capture, Fixation, Or Reduction Of Co2, John Ozdemir, Imann Mosleh, Mojtaba Abolhassani, Lauren F. Greenlee, Robert T. Beitle Jr., M. Hassan Beyzavi

Chemical Engineering Faculty Publications and Presentations

Covalent organic frameworks (COFs) are porous crystalline organic polymers which have been the subject of immense research interest in the past 10 years. COF materials are synthesized by the covalent linkage of organic molecules bonded in a repeating fashion to form a porous crystal that is ideal for gas adsorption and storage. Chemists have strategically designed COFs for the purpose of heterogeneous catalysis of gaseous reactants. Presented in this critical review are efforts toward developing COFs for the sequestration of CO2 from the atmosphere. Researchers have determined the CO2 adsorption capabilities of several COFs is competitive with the highest surface …


Earth Cube Data Capabilities: Collaborative Research: Deep Integration Of Reproducibility In Community Portals, David G. Tarboton Sep 2019

Earth Cube Data Capabilities: Collaborative Research: Deep Integration Of Reproducibility In Community Portals, David G. Tarboton

Funded Research Records

No abstract provided.


Optimal And Decentralized Control Strategies For Inverter-Based Ac Microgrids, Michael D. Cook, Eddy H. Trinklein, Gordon Parker, Rush D. Robinett Iii, Wayne Weaver Sep 2019

Optimal And Decentralized Control Strategies For Inverter-Based Ac Microgrids, Michael D. Cook, Eddy H. Trinklein, Gordon Parker, Rush D. Robinett Iii, Wayne Weaver

Michigan Tech Publications, Part 1

This paper presents two control strategies: (i) An optimal exergy destruction (OXD) controller and (ii) a decentralized power apportionment (DPA) controller. The OXD controller is an analytical, closed-loop optimal feedforward controller developed utilizing exergy analysis to minimize exergy destruction in an AC inverter microgrid. The OXD controller requires a star or fully connected topology, whereas the DPA operates with no communication among the inverters. The DPA presents a viable alternative to conventional P−ω/Q−V droop control, and does not suffer from fluctuations in bus frequency or steady-state voltage while taking advantage of distributed storage assets necessary for the high penetration of …


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.