Achievement Of Wetland Protection And Restoration And Development Strategies In China,
Chinese Academy of Sciences
Achievement Of Wetland Protection And Restoration And Development Strategies In China, Hui Zhu, Ming Jiang, Haitao Wu
Bulletin of Chinese Academy of Sciences (Chinese Version)
Wetland provides various ecological functions, and wetland protection and restoration directly affect national security, sustainability of economy and society, as well as human well-being. This study has systematically summarized the current status of wetland resource and the achievement of wetland protection in China, and the conclusions will provide scientific support for the policy making in wetland protection and management. The area of wetland in China was 41.2×104 km2 based on remote sensing monitoring in 2020, which lead the first in Asia. Since the 18th National Congress of the Communist Party of China (CPC), the area of wetland has showed a …
Effects Of Restaurant Green Practices: Which Practices Are Important And Effective?,
University of Nevada, Las Vegas
Effects Of Restaurant Green Practices: Which Practices Are Important And Effective?, Soocheong (Shawn) Jang, Eunha Jeong
Caesars Hospitality Research Summit
As customers’ ecological concern is steadily increasing, demand for products and services designed to be less harmful to the environment has augmented. By executing green practices, many business owners believe the image of their companies can be improved. Furthermore, the improved image may eventually motivate the customers to use products or services offered by the green company. The restaurant industry is witnessing the green movement as well. Restaurant owners adopt green practices to their properties with the purpose of creating a distinctive image that can differentiate them from their competitors. Therefore, restaurateurs strive to get this competitive advantage by introducing …
Exploring International Rare Earth Industry Landscape Changes And China’S Strategic Responses,
Chinese Academy of Sciences
Exploring International Rare Earth Industry Landscape Changes And China’S Strategic Responses, Yiding Wu, 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 …
A Method For Optimizing The Digital Twin Model Of The Mechanical-Electro-Hydraulic System Of Cantilever Tunnel Boring Machines,
China Coal Technology and Engineering Group (CCTEG)
A Method For Optimizing The Digital Twin Model Of The Mechanical-Electro-Hydraulic System Of Cantilever Tunnel Boring Machines, Wang Yan
Coal Geology & Exploration
Objective Cantilever roadheaders represent roadway tunnelling equipment that integrates the deep coupling of mechanical, electrical, and hydraulic systems, and their control accuracy directly determines the forming quality of roadways.Methods Cantilever roadheaders involve nonlinear mechanical motion, hydraulic control, and cutting load, rendering it challenging to establish accurate control models. Using the philosophy of digital twin modeling, this study developed a method for optimizing the digital twin model of the mechanical-electro-hydraulic system of cantilever roadheaders based on virtual-physical consistency evaluation. Specifically, a digital twin model of the mechanical-electro-hydraulic system was developed using multi-domain co-simulation between AMESim and Simulink. This model allows …
Sand Tank Experiments On The Seepage And Water Pressure Distribution During Single-Well Dewatering At The Bottom Of A Confined Aquifer,
China Coal Technology and Engineering Group (CCTEG)
Sand Tank Experiments On The Seepage And Water Pressure Distribution During Single-Well Dewatering At The Bottom Of A Confined Aquifer, Wang Wenxue
Coal Geology & Exploration
Background Depressurization through dewatering using inclined wells arranged at the aquifer bottom represents a crucial technical approach to the prevention and control of water-sand inrush disasters during coal mining beneath aquifers. However, the mechanisms underlying seepage-pressure interactions and water-preserved depressurization remain poorly understood. Methods Based on the water-yield properties of confined aquifers and the distribution characteristics of inclined wells for dewatering, this study developed a fan-shaped sand tank experimental system for simulating dewatering and seepage from confined aquifers. Using the experimental system, this study carried out seepage experiments using a partially penetrating well at the bottom of a confined aquifer …
Present Situation And Prospects Of Coal-Derived Gas Exploration And Development In Shanxi Province,
China Coal Technology and Engineering Group (CCTEG)
Present Situation And Prospects Of Coal-Derived Gas Exploration And Development In Shanxi Province, Li Guofu, Gong Jieli
Coal Geology & Exploration
Coal-derived gas includes coalbed methane(CBM), shale gas and tight sandstone gas. CBM development is of practical significance to ensure coal mine safety, increase clean energy supply, improve regional energy consumption structure, and promote the clear water and blue sky program, which is more in line with the national strategic requirements of developing green energy, achieving carbon neutrality and peaking carbon dioxide emissions. Shale gas and tight sandstone gas are of great significance to improve China’s energy structure and achieve the goal of carbon neutrality and peaking carbon dioxide emissions. Based on the comprehensive analysis of the beneficial exploration and successful …
Analysis Of Demand And Recycling Potential Of Lithium, Cobalt, And Nickel Under Energy Transition Emdash From Perspective Of Electric Vehicles,
Chinese Academy of Sciences
Analysis Of Demand And Recycling Potential Of Lithium, Cobalt, And Nickel Under Energy Transition Emdash From Perspective Of Electric Vehicles, Xiong Ying, Yuyao Yang
Bulletin of Chinese Academy of Sciences (Chinese Version)
With the rapid growth of demand for lithium, cobalt, and nickel, China, the United States, and the European Union have classified them as critical minerals. This study investigates the rise of China’s and the global electric vehicle industry in relation to the demand for lithium, cobalt, and nickel, forecasts the potential for recycling these metals, and evaluates the challenges to resource security of these metals faced by China. The findings underscore the necessity of enhancing international collaboration in mineral extraction abroad and enhancing capabilities to safeguard overseas assets and equity. The study advocates for expediting the establishment of an electric …
The Green, Blue And Grey Water Footprint Of Farm Animals And Animal Products. Volume 1: Main Report,
University of Nebraska - Lincoln
The Green, Blue And Grey Water Footprint Of Farm Animals And Animal Products. Volume 1: Main Report, Mesfin Mekonnen, Arjen Hoekstra
Daugherty Water for Food Global Institute: Faculty Publications
The projected increase in the production and consumption of animal products is likely to put further pressure on the globe’s freshwater resources. The size and characteristics of the water footprint vary across animal types and production systems. The current study provides a comprehensive account of the global green, blue and grey water footprints of different sorts of farm animals and animal products, distinguishing between different production systems and considering the conditions in all countries of the world separately. The following animal categories were considered: beef cattle, dairy cattle, pig, sheep, goat, broiler chicken, layer chicken and horses. The study shows …
Bio-Papcz: Corn Starch-Based Composite Bioplastic Reinforced With Pineapple Leaf Fiber (Palf), Zinc Oxide (Zno), And Polyvinyl Alcohol (Pva),
De La Salle University
Bio-Papcz: Corn Starch-Based Composite Bioplastic Reinforced With Pineapple Leaf Fiber (Palf), Zinc Oxide (Zno), And Polyvinyl Alcohol (Pva), Jovar Khalel Maghari, Ruel Levida, Marvin Caya, Shervin Austin Huang
Sinaya: A Philippine Journal for Senior High School Teachers and Students
Plastic pollution poses a serious global threat, as petroleum-based plastics persist for centuries, and their surging production of over 450 million tons overwhelms ecosystems (Ritchie et al., 2023). Using a quantitative experimental research design, the study examined the effects of varying concentrations of cornstarch-based bioplastic reinforced with pineapple leaf fiber (PALF), polyvinyl alcohol (PVA), and zinc oxide (ZnO) on the bioplastic’s tensile strength and soil degradability. Sample C2 (ZnO 3.0 %w/w; PVA 9.0 %w/w) demonstrated the optimal tensile properties with a tensile strength of 0.76 MPa and an elongation at break of 6.40%, which was attributed to the addition of …
A Method For 3d Model Reconstruction Of Large-Diameter Rescue Wells Based On Multiple Cameras,
China Coal Technology and Engineering Group (CCTEG)
A Method For 3d Model Reconstruction Of Large-Diameter Rescue Wells Based On Multiple Cameras, Gu Hairong, Yang Wenjuan
Coal Geology & Exploration
Objective Surface drilling for mine rescue represents a critical technique in the emergency rescue system against mine disasters. To accurately assess the passability of large-diameter rescue wells during rescue operations, it is essential to build precise 3D models of the rescue wells for rapid reconstruction of rescue scenarios. Methods Based on the theory of multi-camera-based 3D model reconstruction, this study investigated the method of arranging four Intel D435i cameras within a large-diameter rescue well. Accordingly, a multi-camera-based 3D model reconstruction system for a large-diameter rescue well was established, involving the joint calibration of the camera array and the selection of …
Featured Publications
