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| 1 | Coordinated Scheduling of Energy Resources for Distributed DHCs in an Integrated Energy Grid显示文摘As more and more distributed renewable energy resources connected to electric power grids,the conventional power system evolves into an integrated energy grid(IEG)in order to satisfy various types of energy demands.This paper proposes a model of the coordinated scheduling of energy resources(CSoERs)for distributed district heating and cooling systems(DHCs)in an IEG.The model takes into consideration both the dispatchable grid-connected generators and distributed renewable energy resources,such as wind energy,solar energy and natural gas.The objective is to minimize the operation costs in the IEG in order to satisfy not only the electrical loads but also the heating loads and cooling loads.Furthermore,an energy storage system for heating loads and cooling loads is also developed in the DHCs to improve the operation reliability in the distributed DHCs.Detailed simulation studies are carried out to verify the effectiveness of the CSoERs under two different operation scenarios:grid-connected scenario and stand-alone scenario.Simulation results demonstrate that the performance of the CSoERs contributes to significant energy saving and reliability operation in both grid-connected scenario and standalone scenario in the IEG. | Qinghua Wu Jiehui Zheng Zhaoxia Jing | 2015 | CSEE Journal of Power and Energy Systems2015，1，1： | 21 |
| 2 | Recovery of valuable metals from waste diamond cutters through ammonia–ammonium sulfate leaching显示文摘Copper and zinc were recovered from waste diamond cutters through leaching with an ammonia–ammonium sulfate system and air as an oxidant. The effects of experimental parameters on the leaching process were investigated, and the potential–pH(E–pH) diagrams of Cu–NH_3–SO_4^(2-)–H_2O and Zn–NH_3–SO_4^(-2)–H_2O at 25°C were drawn. Results showed that the optimal parameters for the leaching reaction are as follows: reaction temperature, 45°C; leaching duration, 3 h; liquid-to-solid ratio, 50:1(mL/g); stirring speed, 200 r/min; ammonia concentration, 4.0 mol/L; ammonium sulfate concentration, 1.0 mol/L; and air flow rate, 0.2 L/min. The results of the kinetics study indicated that the leaching is controlled by the surface chemical reaction at temperatures below 35°C, and the leaching is controlled by diffusion through the product layer at temperatures above 35°C. | Ping Xue Guang-qiang Li Yong-xiang Yang Qin-wei Qin Ming-xing Wei | 2017 | International Journal of Minerals,Metallurgy and Materials2017，24，12： | 1 |
| 3 | Resources—Towards Sustainable Use显示文摘A resource is any physical or virtual entity of limited availability used to earn good life.Resources are divided into natural and human resources.Natural resources are derived from the environment and are classified on the basis of origin,including biotic resources like forests,animals and their products, marine organisms and minerals.Abiotic resources | Priscus Roamn Kaspana | 2009 | 地学前缘2009，16，S1： | 0 |
| 4 | Bioeconomy in the Agrarian Resources Potential System of Ukraine显示文摘The main goal of this research is to determine the importance and prospects of bioeconomy development in agriculture of Ukraine for international economic integration.Actual reason for this research is military occupation of west regions and the macroeconomic instability.Available resources form supply potential for agrarian production,renewable energy,and sustainable development.However,unemployment of labour,land,and capital determine the inflationary gap,which could be closed in two main ways:The innovative economic growth in business and households’sectors in accordance to bio-based principles and rational government state regulation with fiscal and monetary policies instruments.The external and internal effects of bioeconomy development in the agrarian resources system are determined in accordance to strengths,weaknesses,opportunities,and threats(SWOT)-analysis.European integration requires entrepreneurial initiative,environmental protection,social benefits in the satisfaction of individual needs of the population,modern principles of competition,such as mutual beneficial cooperation and new market creation for food security and human resources development. | Elena Koval | 2018 | Chinese Business Review2018，17，6： | 0 |
| 5 | Alternative fuels—a new field for mine surveying显示文摘Due to the public’s increased interest in renewable energies and the “Erneuerbare Energien Gesetz” (EEG) from February 2000, geothermal energy and other alternative or renewable energies gain more and more importance. As far as Germany is concerned, geothermal energy and coal bed/mine methane are considered as mineral resources according to the German mining law. This demands the participation of mine surveyors/mineral resources managers from the planning to the production stage and even beyond it. The main tasks that have to be fulfilled are, among others, applications for exploration and production licences as well as the evaluation of the resource’s potential. This paper indicates the tasks of mine surveyors/mineral resources managers in the wide area of the renewable energies in Germany, especially concerning the use of geothermal energy and methane. | A. Preuβe C. Herzog | 2005 | 中国有色金属学会会刊:英文版2005，15，S1： | 0 |
| 6 | Design of a Hybrid Wind-Solar Energy System for an Agro-industrial Residential Area in Bota-Limbe, Cameroon显示文摘This paper proposes the most feasible technical and environmentally friendly hybrid power system configuration;a stand-alone hybrid wind-solar energy system with battery storage for a residential area of an Agro-industrial Company, Cameroon Development Cooperation (CDC), with headquarters in Bota-Limbe, south west region, Cameroon. The power network of the CDC Bota-Limbe Camp amongst other camps, which accommodates plantation workers, is plagued with challenges such as reliance on grid power which is unreliable, poor power quality which endangers home appliances and a spider webbed transmission system that poses as a threat to the lives of plantation workers. This paper addresses those concerns by designing a modular hybrid solar-wind renewable energy system for the camp. Limbe is a coastal area with proven existence of wind and solar resources. It is expected that the proposed system, if adopted and well implemented, will provide huge opportunities for the CDC in several other locations in Cameroon where there is adequate supply of renewable energy resources. | Chu Donatus Iweh Lemundem Marius | 2019 | Journal of Energy and Power Engineering2019，13，6： | 0 |
| 7 | SOURCES OF PRECIPITABLE MOISTURE IN THE CHIHUAHUAN DESERT:POSSIBILITIES FOR IMPROVED UTILIZATION OF RAINFALL显示文摘As a result of increased pressure being exerted upon arid, and particularly semiaridzones to improve the use of renewable resources, regional climatological analysis, and par-ticularly information pertaining to warm season rainfall, helps provide a significant contri-bution for better utilization pertaining to warm season rainfall, helps provide a | Robert H.Schmidt | 1993 | 干旱区资源与环境1993，7，Z1： | 0 |
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