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Articles 2371 - 2400 of 9414
Full-Text Articles in Sustainability
Exploring International Rare Earth Industry Landscape Changes And China’S Strategic Responses, Yiding Wu, Zilong Peng, Dan Lai, Shen Zhao, Lu Wang, Weiqiang Chen, Peng Wang
Exploring International Rare Earth Industry Landscape Changes And China’S Strategic Responses, Yiding Wu, Zilong Peng, Dan Lai, Shen Zhao, Lu Wang, Weiqiang Chen, Peng Wang
Bulletin of Chinese Academy of Sciences (Chinese Version)
Rare earth elements are widely identified as critical raw materials to underpin high-end technological innovation and the development of emerging industries, which makes them as important strategic minerals deserved by key international great powers. Since 2011, the United States and other developed nations are quickly fostering the development of their supply chains and industrial ecosystems of rare earth out of China's engagement. Consequently, the new diversified supply pattern of rare earth has been formalizing at global level. Under this full supply chain view, this study performs a deep-dive analysis of international rare earth industry landscape changes in the key stage …
Marine Ecological Protection And Restoration: International Agendas And China Action, Ke Duan, Zhengyan Liu, Shengkang Liang, Yanbin Li, Dongliang Lu
Marine Ecological Protection And Restoration: International Agendas And China Action, Ke Duan, Zhengyan Liu, Shengkang Liang, Yanbin Li, Dongliang Lu
Bulletin of Chinese Academy of Sciences (Chinese Version)
International conventions and initiatives can promote collective action against global crises, and strengthen the efforts of countries to take concerted actions. This study summarizes the important international agendas related to marine ecological conservation and restoration, and analyzes China's policy mechanism in recent years. It believes that the policies in China and international documents are synergistic and effective in jointly strengthening efforts to respond to the global crisis. This study also puts forward some countermeasures and suggestions for China to build a detailed regional marine ecological map, strengthen ecological corridor restoration, improve scientific and technological support systems, and promote international cooperation …
Integrated Ecological Protection And Restoration In The Guangdong-Hong Kong-Macao Greater Bay Area: Thoughts And Suggestions, Jun Wang, Jian Peng, Bojie Fu
Integrated Ecological Protection And Restoration In The Guangdong-Hong Kong-Macao Greater Bay Area: Thoughts And Suggestions, Jun Wang, Jian Peng, Bojie Fu
Bulletin of Chinese Academy of Sciences (Chinese Version)
The 20th Party Congress made a significant proposal:"advance the Beautiful China Initiative and take a holistic and systematic approach to the conservation and improvement of mountains, waters, forests, farmlands, grasslands, and deserts". The establishment of a sustainable national economy and ecological civilization is a major priority for the Guangdong-Hong Kong-Macao Greater Bay Area (GBA). The GBA's current land development and protection situation is briefly summarized in the study, which also analyzes the issues with ecological protection and restoration in terms of whole-factor chain management, cross-regional cooperation, and target patterns. From the viewpoints of the system view, holistic view, synergy view, …
Pollution Control And Carbon Reduction In Whole Industrial Process: Method, Strategy And Scientific Basis, Hongbin Cao, He Zhao, Yuehong Zhao, Di Zhang
Pollution Control And Carbon Reduction In Whole Industrial Process: Method, Strategy And Scientific Basis, Hongbin Cao, He Zhao, Yuehong Zhao, Di Zhang
Bulletin of Chinese Academy of Sciences (Chinese Version)
As China's environmental protection emission standards are becoming stricter and industrial parks are taking shape, problems such as the lack of stable cooperative treatment technology for toxic pollutants and carbon emission reduction, and the high control cost seriously restrict the sustainable development of economic society and the realization of the strategic goal of carbon emission reduction. Guided by the major environmental protection demand of industries, this study put forward the method, strategy and scientific basis of "Synergistic reduce pollution and carbon in the whole process of industry". Through the coordination of control methods, cross-media, multi-field and multi-factor modeling optimization, the …
Importance Of Snowmelt On Soil Nitrate Leaching To Groundwater – A Model Study, Sahila Beegum, Arindam Malakar, Chittaranjan Ray, Daniel D. Snow
Importance Of Snowmelt On Soil Nitrate Leaching To Groundwater – A Model Study, Sahila Beegum, Arindam Malakar, Chittaranjan Ray, Daniel D. Snow
Nebraska Water Center: Faculty Publications
The movement of nitrate to surface water bodies during snow accumulation and melting has been extensively studied, but there are only limited studies on the influence of snow processes on nitrate leaching to groundwater. The present study investigated the impact of snow processes on nitrate leaching to groundwater based on a simulation modeling approach using HYDRUS-1D. HYDRUS-1D model has a temperature threshold-based snow model in addition to water, solute, and heat simulation components. The snow component in HYDRUS-1D was previously not applied to snow simulation studies since the method does not consider a detailed physical and process-based representation of snow …
Saving The Critically-Endangered Western Gray Whale, Jen Maresh
Saving The Critically-Endangered Western Gray Whale, Jen Maresh
Sustainability Research & Practice Seminar Presentations
Professor Jen Maresh, Biology - Saving the Western Gray Whale: How Science, Industry, and the Public are Coming Together to Protect a Critically Endangered Species from Oil & Gas Activities
Big Picture Immunology: Body Size Shapes Immune Strategies, Cynthia Downs
Big Picture Immunology: Body Size Shapes Immune Strategies, Cynthia Downs
Sustainability Seminar Series
Why are some species susceptible to and capable of transmitting disease-causing pathogens while others are not? Do some species inherently have less effective immune defenses than others? In this presentation, Dr. Downs will explain new research that links the body mass of a species with its capacity to defend against pathogens. Evidence suggests that large and small species experience different disease pressures and physiological constraints leading to the evolution of different immune strategies. This work has implications for understanding disease emergences and dynamics.
Milk Diets, Grape Cures, And Bananas Galore: An Examination Of Past And Present Wellness Culture Turned Sour, Jacqueline Alnes
Milk Diets, Grape Cures, And Bananas Galore: An Examination Of Past And Present Wellness Culture Turned Sour, Jacqueline Alnes
Sustainability Research & Practice Seminar Presentations
Professor Jacqueline Alnes, English - Milk Diets, Grape Cures, and Bananas Galore: An Examination of Past and Present Wellness Culture Turned Sour
The Impacts Of A Changing Climate And Human Activities On The Hydrology In High Mountain Asia, Fadji Z. Maina
The Impacts Of A Changing Climate And Human Activities On The Hydrology In High Mountain Asia, Fadji Z. Maina
Sustainability Seminar Series
High Mountain Asia (HMA), the third pole, encompasses Asia’s most prominent rivers such as the Ganges, the Indus, and the Yangtze. HMA, home to over a billion people, experiences warming at a rate that is double the global average making it one of the most vulnerable water towers on Earth in addition to a significant decline in groundwater due to anthropogenic activities and high vegetation greening rates. Understanding the changes in water budgets in HMA and their drivers is essential for water management and climate change mitigation strategies. We used remotely sensed datasets to represent the hydrology of the region …
Rhino Conservation In Africa, Andrew N. Rowan
Rhino Conservation In Africa, Andrew N. Rowan
WellBeing News
The recovery of white rhinos from a small population of 20 animals in 1895 to tens of thousands today is a major conservation success story, but we are again facing a rapid decline in the numbers of both species of African rhinoceros due mainly to poaching. Demand for rhino horn, mainly from the Far East, has led to an epidemic of poaching. The healthy population of white rhinos in South Africa’s Kruger National Park has fallen from just under 12,000 individuals in 2010 to around 2,200 in 2022. At the current rate of decline, white rhinos will be eliminated from …
Animal Welfare - Environment - Sustainable Development Nexus: Scoping Study, Janice H. Cox
Animal Welfare - Environment - Sustainable Development Nexus: Scoping Study, Janice H. Cox
Nexus – UNEP – Animal Welfare, Environment, Sustainable Development
A detailed report on the links between animal welfare, environmental health and global sustainability. Issues discussed include climate change, biodiversity, pollution and waste management, one health, sustainable development and just transitions.
Process Intensification Strategies For Green Solvent Mediated Biomass Pretreatment, Ahamed Ullah, Yuxuan Zhang, Can Liu, Qi Qiao, Qing Shao, Jian Shi
Process Intensification Strategies For Green Solvent Mediated Biomass Pretreatment, Ahamed Ullah, Yuxuan Zhang, Can Liu, Qi Qiao, Qing Shao, Jian Shi
Markey Cancer Center Faculty Publications
Demonstrated to be highly effective for lignocellulosic biomass pretreatment, deep eutectic solvent (DES) has attracted increasing attention owing to its advantages of simple synthesis, relatively low chemical cost, and better biocompatibility as compared to certain ionic liquids. Here we provide a critical review of the status of the design/selection of DES for the pretreatment of biomass feedstocks with an emphasis on the process intensification strategies: 1) integration of microwave, ultrasound, and high solid extrusion for pretreating biomass, 2) one-pot DES pretreatment, enzymatic hydrolysis, and fermentation, 3) strategies for DES recycling and product recovery; and 4) recent progress on molecular simulations …
Sustainable And Organic Beekeeping In Chester County, John Pisciotta
Sustainable And Organic Beekeeping In Chester County, John Pisciotta
Sustainability Research & Practice Seminar Presentations
Professor John Pisciotta, Biology - Sustainable and Organic Beekeeping in Chester County
Sustainability Hub Newsletter - February 2023, Jacqueline Jergensen, Neyda Gilman, Jennifer Embree
Sustainability Hub Newsletter - February 2023, Jacqueline Jergensen, Neyda Gilman, Jennifer Embree
Library Sustainability Resources
This issue of the Sustainability Hub Newsletter shares tips on what seeds you can start planting indoors and inspiration on which plants to grow this season! Keep reading to learn about planting by the moon, new resources, and important announcements!
Lignin Derived Hydrophobic Deep Eutectic Solvents As Sustainable Extractants, Yuxuan Zhang, Qi Qiao, Usman Lame Abbas, Jun Liu, Yi Zheng, Christopher Jones, Qing Shao, Jian Shi
Lignin Derived Hydrophobic Deep Eutectic Solvents As Sustainable Extractants, Yuxuan Zhang, Qi Qiao, Usman Lame Abbas, Jun Liu, Yi Zheng, Christopher Jones, Qing Shao, Jian Shi
Markey Cancer Center Faculty Publications
Solvent innovation has become a central task for improving the sustainability of chemical processes1. Deep eutectic solvents (DESs) emerge as environmentally friendly alternatives to toxic and volatile organic solvents. One appealing aspect for DESs is that they can be synthesized using naturally occurring compounds from biomass. Herein, we prepared novel hydrophobic DESs based on lignin derivatives and characterized their physicochemical properties including density, viscosity, and thermal behavior. The results showed that five lignin-derived hydrophobic DESs made from menthol, thymol, and 2,6-dimethoxyphenol were promising as green solvents due to their low viscosities and environmentally friendly constituents. To evaluate the potential application …
Exploring Innovative Engineering Solutions To Environmental Challenges, Yang Deng
Exploring Innovative Engineering Solutions To Environmental Challenges, Yang Deng
Sustainability Seminar Series
Our environment faces different challenges. Environmental engineers find solutions at the interface between humans and the environment. Technology innovation and inventive engineering design provide an approach to surmount the challenges. My research program focuses on environmental systems and processes. Particularly, we use physical and chemical principles to tackle water quality-related issues. Because water actively interacts with other environmental elements (e.g., air, soil, sediments, and solid waste), our efforts will ultimately benefit the whole environmental system. This presentation will introduce two intertwined research threads that my group has nurtured over the past years. The first theme is technology innovations for mitigation …
Time Domain Reflectometry Waveform Interpretation With Convolutional Neural Networks, Zhuangji Wang, Shan Hua, Dennis Timlin, Yuki Kojima, Songtao Lu, Wenguang Sun, David Fleisher, Robert Horton, Vangimalla R. Reddy, Katherine Tully
Time Domain Reflectometry Waveform Interpretation With Convolutional Neural Networks, Zhuangji Wang, Shan Hua, Dennis Timlin, Yuki Kojima, Songtao Lu, Wenguang Sun, David Fleisher, Robert Horton, Vangimalla R. Reddy, Katherine Tully
Nebraska Water Center: Faculty Publications
Interpreting time domain reflectometry (TDR) waveforms obtained in soils with non-uniform water content is an open question. We design a new TDR waveform interpretation model based on convolutional neural networks (CNNs) that can reveal the spatial variations of soil relative permittivity and water content along a TDR sensor. The proposed model, namely TDR-CNN, is constructed with three modules. First, the geometrical features of the TDR waveforms are extracted with a simplified version of VGG16 network. Second, the reflection positions in a TDR waveform are traced using a 1D version of the region proposal network. Finally, the soil relative permittivity values …
Path To Net Zero: On The Ground Approaches And Challenges In The Corporate World, Manveer Mann
Path To Net Zero: On The Ground Approaches And Challenges In The Corporate World, Manveer Mann
Sustainability Seminar Series
With growing pressure from regulators and investors, the corporate world is reckoning with the need to account for its impact on the climate. As a result, ESG teams are being chartered with mandate to commit to and develop pathways for net zero targets. However, the path to net zero presents numerous challenges even to the most committed teams. In this talk, I will discuss the approaches being taken and challenges faced as corporations set out on decarbonization journeys. Among others, I will discuss the frameworks being used to account for emissions, and limitations that lead to issues such as over …
Assessing The Effectiveness Of Integrated Multi-Trophic Aquaculture For Growing West Coast Venus Clams, Avery Wallace
Assessing The Effectiveness Of Integrated Multi-Trophic Aquaculture For Growing West Coast Venus Clams, Avery Wallace
Theses
With demand for sustainable sources of seafood on the rise, California is looking to expand aquaculture with a focus on innovative culturing methods and use of native or resident species. Therefore, this study examined the potential for culturing native North American west coast venus clams (Chione californiensis and Chione undatella) using integrated multi-trophic aquaculture (IMTA). An ITMA approach was chosen because it is a culture method that uses species from different but functionally complementary trophic levels that have been found to reduce the potential negative effects of traditional monoculture. California sea cucumber (Parastichopus californicus) and the seaweeds red ogo (Gracilaria …
Developing Ecological Security Pattern For Coastal Wetlands Based On “Three-Line Integration” Spatial Strategy, Xiaowen Li, Liehui Zhi, Tiantian Ma, Zengli Liu, Baoshan Cui, Dongdong Shao, Yu Cao, Yonglin Mu
Developing Ecological Security Pattern For Coastal Wetlands Based On “Three-Line Integration” Spatial Strategy, Xiaowen Li, Liehui Zhi, Tiantian Ma, Zengli Liu, Baoshan Cui, Dongdong Shao, Yu Cao, Yonglin Mu
Bulletin of Chinese Academy of Sciences (Chinese Version)
Coastal wetlands function as key socioeconomic resources as well as ecological barriers for sustainable development in coastal regions. Although previous research and practices indicate that restoration of degraded wetlands needs combination with intact natural wetlands to achieve best integrated ecosystem services, this kind of integration is still lacking both in research and practice. In the past decades, increased land reclamation coupling with climate change (e.g. sea level rise) have led considerable coastal squeeze effects and intensified degradation and loss in coastal wetlands along Chinese coastline, restoration of damaged coastal wetlands is therefore urgently needed to enhance the overall ecological functions …
Development Opportunities And Technical Challenges Of Industrialization For Hydrogen Production From Bio-Ethanol Reforming, Xue Han, Hong He, Guojun Yue, Hailong Lin, Jinsong Liu, Bin Yu
Development Opportunities And Technical Challenges Of Industrialization For Hydrogen Production From Bio-Ethanol Reforming, Xue Han, Hong He, Guojun Yue, Hailong Lin, Jinsong Liu, Bin Yu
Bulletin of Chinese Academy of Sciences (Chinese Version)
Bio-ethanol reforming for hydrogen production, using renewable raw materials and adopting mature and efficient chemical processes, is an important source of green hydrogen supply to achieve the goals of carbon peaking and carbon neutrality. Bio-ethanol is a widely used substitute for fossil fuels. With the continuous progress of cellulosic ethanol technology in recent years, bio-ethanol will gradually break through the constraints of starch-based raw material supply. Based on the industrialization achievements of hydrogen production and bio-ethanol, bio-ethanol reforming can realize a rapid linkage with the existing hydrogen energy industry. However, the existence of a carbon-carbon signal bond in ethanol poses …
National Development And The Sustainability Of Mining In The Atacama Desert, Chile, Dakota Soleil Osgood
National Development And The Sustainability Of Mining In The Atacama Desert, Chile, Dakota Soleil Osgood
Capstone Collection
As climate change continues to intensify on a global scale, efforts have been made to implement renewable energies and progressive technologies. These tools are critical in the shift towards a more sustainable practice, and yet analysis of localized impacts from the development of these mechanisms is inadequate. Chile has been and continues to be a leading country in mineral extraction, with an economic history founded in the mining industry. The establishment of mining in Chile as a progressive tool has aided the social and economic development of the nation. Consequences of mining extraction, however, include intensive environmental degradation, human rights …
Making Minnesota A Model For Energy Storage Policy, Max Meyer
Making Minnesota A Model For Energy Storage Policy, Max Meyer
Minnesota Journal of Law, Science & Technology
No abstract provided.
Hitting Two Birds With One Emissions-Based Maintenance Stone – A Literature Review On Improving Overall Productivity Of Underground Diesel Fleets, Johannes Deon Swanepoel, Jennifer Hines, Vinod Gopaldasani, Brian Davies
Hitting Two Birds With One Emissions-Based Maintenance Stone – A Literature Review On Improving Overall Productivity Of Underground Diesel Fleets, Johannes Deon Swanepoel, Jennifer Hines, Vinod Gopaldasani, Brian Davies
Journal of Sustainable Mining
Many industries regard occupational health and safety as a core value and an integral component to maintaining high productivity, and, thus, shareholder value. Diesel fleets’ engine maintenance is instrumental in ensuring affected workplaces meet production requirements while controlling health and safety hazards that these fleets introduce to the workplace. This systematic literature review focuses on production and occupational health and safety advantages associated with the implementation and adherence to an emissions-based maintenance (EBM) program. The literature review was conducted across eight databases relevant to workplace health and engineering. To be eligible for inclusion, the publication had to contain maintenance interventions …
Research On Vibration-Based Early Diagnostic System For Excavator Motor Bearing Using 1-D Cnn, Dorjsuren Yandagsuren, Tatsuki Kurauchi, Hisatoshi Toriya, Hajime Ikeda, Tsuyoshi Adachi, Youhei Kawamura
Research On Vibration-Based Early Diagnostic System For Excavator Motor Bearing Using 1-D Cnn, Dorjsuren Yandagsuren, Tatsuki Kurauchi, Hisatoshi Toriya, Hajime Ikeda, Tsuyoshi Adachi, Youhei Kawamura
Journal of Sustainable Mining
In mining, super-large machines such as rope excavators are used to perform the main mining operations. A rope excavator is equipped with motors that drive mechanisms. Motors are easily damaged as a result of harsh mining conditions. Bearings are important parts in a motor; bearing failure accounts for approximately half of all motor failures. Failure reduces work efficiency and increases maintenance costs. In practice, reactive, preventive, and predictive maintenance are used to minimize failures. Predictive maintenance can prevent failures and is more effective than other maintenance. For effective predictive maintenance, a good diagnosis is required to accurately determine motor-bearing health. …
Dual Ionic Liquid-Functionalized Cellulosic Materials: Thermal, Mechanical And Conductive Properties, Elizabeth Mcgrew, Kevin M. Miller Phd
Dual Ionic Liquid-Functionalized Cellulosic Materials: Thermal, Mechanical And Conductive Properties, Elizabeth Mcgrew, Kevin M. Miller Phd
Posters-at-the-Capitol
Cellulose, an inexpensive and renewable biomacromolecule, represents an intriguing synthetic foundation for new materials with task-specific properties. Here, we wish to report a synthetic route for functionalizing cellulose with a side chain containing two ionic liquid functional groups using azide-alkyne ‘click’ cyclization strategy, followed by quaternization of the two resulting heterocycles (1,2,3-triazole and imidazole). Through this functionalization strategy, the resulting cellulosic materials exhibited significant softening, with several glass transition (Tg) values observed below room temperature, indicating the amorphous nature of the materials, with the Tg dependent on both the length of the side chain and the …
Predicting Young’S Modulus Of Indian Coal Measure Rock Using Multiple Regression And Artificial Neutral Network, Sayantan Chakraborty, Rohan Bisai, Rohit Roy, Sathish Kumar Palaniappan, Samir Kumar Pal, Karanam Uma Maheshwar Rao
Predicting Young’S Modulus Of Indian Coal Measure Rock Using Multiple Regression And Artificial Neutral Network, Sayantan Chakraborty, Rohan Bisai, Rohit Roy, Sathish Kumar Palaniappan, Samir Kumar Pal, Karanam Uma Maheshwar Rao
Journal of Sustainable Mining
Accurate information on Young’s modulus (E) is required for simulating rock deformation in mines; on the other hand, it is very cumbersome to obtain in the laboratory and collecting drilled cores in sufficient amounts, especially in the case of soft rocks, is quite impossible. Empirical equations were deducted for E from easily determinable rock properties, and the final model was selected through different statistical strength parameter tests. The generalization of the equation was verified through the normal distribution tests of residues of the equation. R2 came to be 0.609 and was validated using an artificial neural network with an improved …
Gravity And Electrostatic Separation Of Unburned Coal From A Selected Fly Ash, Krzysztof Wierzchowski, Agnieszka Klupa, Barbara Białecka, Joanna Całus Moszko
Gravity And Electrostatic Separation Of Unburned Coal From A Selected Fly Ash, Krzysztof Wierzchowski, Agnieszka Klupa, Barbara Białecka, Joanna Całus Moszko
Journal of Sustainable Mining
Unburned coal grains make it difficult to use fly ash economically, which causes energy losses in the fuel. The article presents the possibilities of separating unburned coal from selected fly ash. In order to assess the possibility of separation of unburned carbon, the analysis of grain density and ash composition was used. Unburned coal was separated by four methods – one wet gravity and three dry methods. It has been found that despite very fine ash grains, the quality and quantity of separation products are significantly dependent on the separation method used and the separated grains’ qualitative characteristics. The analysis …
Exploring The Characterization, Liberation And Flotation Response Of A Nigerian Low-Grade Copper Ore, Willie Nheta, Omoyemi O. Ola-Omole
Exploring The Characterization, Liberation And Flotation Response Of A Nigerian Low-Grade Copper Ore, Willie Nheta, Omoyemi O. Ola-Omole
Journal of Sustainable Mining
This study explores the characterization, liberation and flotation response of low-grade copper ore from Anka area, Zamfara state Nigeria. The ore was crushed, milled and sieved in accordance with BS 410 standard. It was characterized with XRD, XRF, SEM-EDS and AAS. Froth flotation was carried out with varying %solids, pH, retention time and collector dosages using SEX and sodium oleate. Particle size distribution of the ore shows its economic liberation between -150 and +106 µm while 80% passing corresponds to 175.7 µm using the Gaudin Schuhmann equation. However, according to metallurgical balance calculation, 63 µm proved to have the highest …