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Articles 1 - 30 of 206
Full-Text Articles in Physical Sciences and Mathematics
Oceans Of Space, Stephanie Steinbrecher '16
Oceans Of Space, Stephanie Steinbrecher '16
EnviroLab Asia
"Oceans of Space" relates my observations of the 2016 EnviroLab Asia Clinic Trip to Singapore and Sarawak, Malaysia. In this meditation, the concept of space serves as a lens to examine assumptions of geopolitical, historical, and philosophical positioning—regionally and globally. At the center of my inquiry is EnviroLab's connection to the Dayak communities in Baram, Sarawak. This region is experiencing dramatic social and ecological change as a result of industrial development. By triangulating my subjective impressions of this space, various knowledge systems, and the qualitative data EnviroLab gathered in Southeast Asia, I aim to untangle some paradoxes that complicate the …
Teleconnections In Steam: Antarctic Field-Camp Art, Craig Stevens, Gabby O'Connor
Teleconnections In Steam: Antarctic Field-Camp Art, Craig Stevens, Gabby O'Connor
The STEAM Journal
We describe a component of a multi-element STEAM collaboration looking to explore ideas around the life cycle of Antarctic sea ice. One of the intermediate phases of the work involved the scientist deploying partially pre-made art components. Results were modulated by weather and operational constraints and generated a sequence of images and recordings as well as greater understanding of the creative collaboration process.
Predicting Post-Fire Change In West Virginia, Usa From Remotely-Sensed Data, Michael Strager P. Strager, Melissa Thomas-Van Gundy, Aaron E. Maxwell
Predicting Post-Fire Change In West Virginia, Usa From Remotely-Sensed Data, Michael Strager P. Strager, Melissa Thomas-Van Gundy, Aaron E. Maxwell
Journal of Geospatial Applications in Natural Resources
Prescribed burning is used in West Virginia, USA to return the important disturbance process of fire to oak and oak-pine forests. Species composition and structure are often the main goals for re-establishing fire with less emphasis on fuel reduction or reducing catastrophic wildfire. In planning prescribed fires land managers could benefit from the ability to predict mortality to overstory trees. In this study, wildfires and prescribed fires in West Virginia were examined to determine if specific landscape and terrain characteristics were associated with patches of high/moderate post-fire change. Using the ensemble machine learning approach of Random Forest, we determined that …
Climate Change Adaptation Case Study: Benefit-Cost Analysis Of Coastal Flooding Hazard Mitigation, Will Cooper, Federico Garcia, Diana Pape, David Ryder, Ben Witherell
Climate Change Adaptation Case Study: Benefit-Cost Analysis Of Coastal Flooding Hazard Mitigation, Will Cooper, Federico Garcia, Diana Pape, David Ryder, Ben Witherell
Journal of Ocean and Coastal Economics
The damage Hurricane Sandy caused had far-reaching repercussions up and down the East Coast of the United States. Vast coastal flooding accompanied the storm, inundating homes, businesses, and utility and emergency facilities. Since the storm, projects to mitigate similar future floods have been scrutinized. Such projects not only need to keep out floodwaters but also be designed to withstand the effect that climate change might have on rising sea levels and increased flood risk.
In this study, we develop an economic model to assess the costs and benefits of a berm (sea wall) to mitigate the effects of flooding from …
Change Agents
SIGNED: The Magazine of The Hong Kong Design Institute
Two recent visitors to HKDI helped students understand how design and a sustainable lifestyle can be good partners but as Summer Cao reports designers have to inspire consumers to adopt better habits before long term improvements in the environment will be possible.
Designed To Last
SIGNED: The Magazine of The Hong Kong Design Institute
Issues of creativity and sustainability have usually been separated since the industrial revolution in the West over two hundred years ago. While most designers have thought about how to sell their products, rather than how to save the earth, an increasing number have begun to argue that this separation is untenable. The HKDI's Yan Yan Lam is one of them. As she explains to Daniel Jeffreys, a sustainable future for the planet is something that will only happen by disign.
Waste Management And Upcycling, Katarina Brieditis, Katarina Evans
Waste Management And Upcycling, Katarina Brieditis, Katarina Evans
SIGNED: The Magazine of The Hong Kong Design Institute
All material is good material, you only need to create ways to use it. Re Rag Rug started as an experimental design project to explore the social and ecological factors of turning waste material into rugs…
Magic Carpets
SIGNED: The Magazine of The Hong Kong Design Institute
Two designers have harnessed creativity and innovation to recreate and invigorate a traditional Swedish handicraft using recycled materials. As Libby Zeng reports their goal is to persuade the whole world to embrace sustainable design.
Impact Of Climate Change On Corn Yields In Alabama, Pauline Welikhe, Joseph Essamuah-Quansah, Kenneth Boote, Senthold Asseng, Gamal El Afandi, Souleymane Fall, Desmond Mortley, Ramble Ankumah
Impact Of Climate Change On Corn Yields In Alabama, Pauline Welikhe, Joseph Essamuah-Quansah, Kenneth Boote, Senthold Asseng, Gamal El Afandi, Souleymane Fall, Desmond Mortley, Ramble Ankumah
Professional Agricultural Workers Journal
Abstract
The study used calibrated Crop Environment Resource Synthesis (CERES) maize (corn) model to simulate maize (corn) physiological growth processes and yields under 2045 and 2075 projected climate change scenarios for six representative counties in Alabama. The future climatologies for two emission scenarios Representative Concentration Pathway (RCP) 4.5 (medium) and RCP 8.5 (high) were developed based on the IPSL-CM5A-MR high resolution climate model. Average yield decreases of 19.5% and 37.3% were, respectively, projected under RCP 4.5 and RCP 8.5 for 2045, and average yield decreases of 32.5% and 77.8% were, respectively, projected under RCP 4.5 and RCP 8.5 for 2075. …
Drop By Drop
SIGNED: The Magazine of The Hong Kong Design Institute
In October 2013 Yale University professor Sheila Levrant de Bretteville began exploring the water's edge at four Hong Kong harbours with an interdisciplinary group of students from HKDI. The issues that captured their attention formed the basis of some vivid and emotionally compelling work.
Seasonal Temperature Variations Controlling Cave Ventilation Processes In Cueva Larga, Puerto Rico, Rolf Vieten, Amos Winter, Sophie Friederike Warken, Andrea Schrӧder-Ritzrau, Thomas E. Miller, Denis Scholz
Seasonal Temperature Variations Controlling Cave Ventilation Processes In Cueva Larga, Puerto Rico, Rolf Vieten, Amos Winter, Sophie Friederike Warken, Andrea Schrӧder-Ritzrau, Thomas E. Miller, Denis Scholz
International Journal of Speleology
Two years of cave monitoring investigate ventilation processes in Cueva Larga, a tropical cave in Puerto Rico. The cave is 1,440 m long with a large main passage (about 120,000 m3). Cave air pCO2 in the main passage varies seasonally, between 600 ppm in winter and 1,800 ppm in summer. The seasonal variability in cave pCO2 permits the estimation of a cave air exchange time of 36 ± 5 days and a winter ventilation rate of 3,300 ± 1,000 m3/day for the main cave passage. Calculations of virtual temperature and differences between cave and …
Moving Up
SIGNED: The Magazine of The Hong Kong Design Institute
The HKDI is on course to become a pioneer in environmentally conscious design by embedding the concept of sustainability into fashion at the start of the creative process.
Sedimentation Risk Assessment Using Satellite And Geospatial Data In Lagoa Feia, Brazil, Ualas B. Rohrer, Buddhika D. Madurapperuma
Sedimentation Risk Assessment Using Satellite And Geospatial Data In Lagoa Feia, Brazil, Ualas B. Rohrer, Buddhika D. Madurapperuma
IdeaFest: Interdisciplinary Journal of Creative Works and Research from Cal Poly Humboldt
No abstract provided.
การจัดการภูมิทัศน์วัฒนธรรมเพื่อการอนุรักษ์สภาพแวดล้อมของเมืองเชียงราย, เกริก กิตติคุณ
การจัดการภูมิทัศน์วัฒนธรรมเพื่อการอนุรักษ์สภาพแวดล้อมของเมืองเชียงราย, เกริก กิตติคุณ
Environmental Journal
No abstract provided.
Terrarium : โลกสีเขียวใบเล็กๆ, เสาวนีย์ วิจิตรโกสุม
Terrarium : โลกสีเขียวใบเล็กๆ, เสาวนีย์ วิจิตรโกสุม
Environmental Journal
No abstract provided.
แตนเบียน : ความหลากหลายและงานทางอนุกรมวิธานในประเทศไทย, บัณฑิกา อารีย์กุล บุทเชอร์
แตนเบียน : ความหลากหลายและงานทางอนุกรมวิธานในประเทศไทย, บัณฑิกา อารีย์กุล บุทเชอร์
Environmental Journal
No abstract provided.
ความลับจากตะกอนถ้ำ, สกลวรรณ ชาวไชย
ความตกลงปารีส [The Paris Agreement], แสงจันทร์ ลิ้มจิรกาล
ความตกลงปารีส [The Paris Agreement], แสงจันทร์ ลิ้มจิรกาล
Environmental Journal
No abstract provided.
ทิศทางอุตสาหกรรมเชิงนิเวศน์จากเดเว่นส์สู่ประเทศไทย, เอกเทพ เอกกมลกุล
ทิศทางอุตสาหกรรมเชิงนิเวศน์จากเดเว่นส์สู่ประเทศไทย, เอกเทพ เอกกมลกุล
Environmental Journal
No abstract provided.
มลพิษจากกลิ่น... เรื่องร้องเรียนอันดับ 1 ของประเทสไทย, สิรินารี เงินเจริญ
มลพิษจากกลิ่น... เรื่องร้องเรียนอันดับ 1 ของประเทสไทย, สิรินารี เงินเจริญ
Environmental Journal
No abstract provided.
In Continuity With The Past: Indigenous Environmentalism And Indian Christian Visions Of Flora, James Ponniah
In Continuity With The Past: Indigenous Environmentalism And Indian Christian Visions Of Flora, James Ponniah
Journal of Global Catholicism
This article considers whether Indian Christianity can be said to have a distinctive ecological vision. The first two parts of the article examine Christian environmentalism in two native forms of Indian Christianity: Tamil Christianity and Tribal Christianity. Continuing with the theme of conformity to the local culture—though of the elite—the third part of the article investigates how Christian Ashrams function as dynamic centers for ecological praxis. The last part of the article considers how contemporary Indian Christian communities can respond to the ecological challenges confronting them.
Culture And Conservation: Beyond Anthropocentrism, Nathan Poirier
Culture And Conservation: Beyond Anthropocentrism, Nathan Poirier
Journal of Ecological Anthropology
No abstract provided.
Accuracy Assessment Of Pictometry® Height Measurements Stratified By Cardinal Direction And Image Magnification Factor, Daniel Unger, David Kulhavy, I-Kuai Hung, Yanli Zhang
Accuracy Assessment Of Pictometry® Height Measurements Stratified By Cardinal Direction And Image Magnification Factor, Daniel Unger, David Kulhavy, I-Kuai Hung, Yanli Zhang
International Journal of Geospatial and Environmental Research
The aim of this project was to ascertain if Pictometry® estimated height could be used in lieu of field-based height estimation. Height of a light pole measured with a telescopic height pole was compared to Pictometry® hyperspatial 4-inch (10.2 centimeters) multispectral imagery estimated light pole height on the campus of Stephen F. Austin State University, Nacogdoches, Texas. Average percent agreement between light pole height and Pictometry® estimated light pole height summarized by Pictometry® image magnification factors at 100%, 125%, 150%, 200%, and 300% magnification were within 98% of light pole height with percent disagreement ranging from …
Measurement Of The Ocean Economy From National Income Accounts To The Sustainable Blue Economy, Charles S. Colgan
Measurement Of The Ocean Economy From National Income Accounts To The Sustainable Blue Economy, Charles S. Colgan
Journal of Ocean and Coastal Economics
The widespread efforts to incorporate the economic values of oceans into national income accounts have reached a stage where coordination of national efforts is desirable. A symposium held in 2015 began this process by bringing together representatives from ten countries. The symposium concluded that a definition of core ocean industries was possible but beyond that core the definition of ocean industries is in flux. Better coordination of ocean income accounts will require addressing issues of aggregation, geography, partial ocean industries, confidential, and imputation is also needed. Beyond the standard national income accounts, a need to incorporate environmental resource and ecosystem …
Ga Based Optimal Control For Maximizing Pv Penetration At Transmission, Chittesh Veni Chandran
Ga Based Optimal Control For Maximizing Pv Penetration At Transmission, Chittesh Veni Chandran
Student Journal of Energy Research
Utilization of distributed energy resources (DER’s) like photo-voltaic generators, is one of the possible solution for present scenario of energy crisis. Most of the study suggest the implementation of PV power stations at distribution level. In this paper detailed theoretical analyses of the impact of large scale PV on transmission level is analysed. The preliminary section of this paper provides literature review with specifications of IEEE-14 bus network. Two methodology ie, constant load method and maximum loading method is implemented here. A test study is done in IEEE 14 bus to find out the optimal location of solar photo-voltaic generator …
Risk Assessment For Two Multi Terminal Vsc-Hvdc Control Schemes, Roberto Sandano
Risk Assessment For Two Multi Terminal Vsc-Hvdc Control Schemes, Roberto Sandano
Student Journal of Energy Research
High Voltage Direct Current (HVDC) connections have been in operation since the 1950s. The vast majority of which are point to point connections and use Line Commutated Converter (LCC) technology. Since the late nineties Voltage Source Converter (VSC) technology has become a feasible choice on HVDC transmission systems [1]. Research is now focused in the development of Multi-terminal (MT)-HVDC system which will facilitate the collection of energy from distant dispersed renewable energy resources and transport this energy to load centres.
Power Quality Improvement In Fuel Cell Based Hybrid Power System Using Statcom, Sandipan Patra
Power Quality Improvement In Fuel Cell Based Hybrid Power System Using Statcom, Sandipan Patra
Student Journal of Energy Research
This paper presents the power quality improvement in a microgrid, supplying a nonlinear and unbalanced load using fuzzy logic controller based static synchronous compensator (STATCOM). The microgrid contains a hybrid combination photovoltaic (PV), fuel cell (FC) along with the battery energy storage system (BESS) where a decentralized power sharing algorithm is used to control its power management. Here, STATCOM is used as a compensator for the hybrid system to reduce the harmonics in the voltage and current profile at the point of common coupling (PCC). The current reference is generated taking into account, the active and reactive power to be …
Using A High-Altitude Balloon Platform To Observe And Measure Ozone Uptake Over Agricultural Landscapes In Central Illinois, Cody Sabo
DePaul Discoveries
An increase in the amount of factories and machines that emit greenhouse gases (GHGs) has caused the concentration of GHGs to rise steeply since the industrial era. These emissions create compounds that react with sunlight to form ozone, a GHG. Ozone not only traps heat in the atmosphere causing long-term global issues, but it also causes direct harm to both plants and animals. The damage that ozone causes to plants is due to plants taking the gas up through their stomata. Measuring ozone uptake has traditionally been a difficult and expensive process. This study proposes a novel approach towards measuring …