The status quo of Ningxia Ningdong Energy-Chemical Base was introduced first, and the ecological civilization and low-carbon economy of Ningxia Ningdong Energy-Chemical Base were analyzed. Problems in the exploitation...The status quo of Ningxia Ningdong Energy-Chemical Base was introduced first, and the ecological civilization and low-carbon economy of Ningxia Ningdong Energy-Chemical Base were analyzed. Problems in the exploitation of resources in Ningxia Ningdong Energy-Chemical Base, and major factors which restrain the development, were discussed. Countermeasures were put forward at last.展开更多
Based on the overall understanding of new cities developing based on resources,by taking Yulin City of Shaanxi Province for example and combining with relevant statistical data,main problems existing in resources deve...Based on the overall understanding of new cities developing based on resources,by taking Yulin City of Shaanxi Province for example and combining with relevant statistical data,main problems existing in resources development have been pointed out,covering simple resources industrial structure and serious wastes in resources development;insufficient intensive processing of products and low level of resources integrated utilization;and deteriorative regional eco-environment.On this basis,a new mode of landscape ecology of resource-based cities have been proposed,emphasizing constructing new green energy industrial development mode from the perspective of microscopic view;ecological industrial park of circular economy from the perspective of mesoscopic view;and the overall ecological recovery mode of the mining area from the perspective of macroscopic view.It hopes to give a vital inspiration to the sustainable development of new resources-based cities.展开更多
在新型电力系统中,亟待深度挖掘需求侧资源以提升系统灵活性和新能源消纳能力。在“新基建”背景下,5G基站作为一种新型需求侧资源正迅速发展。研究如何在保证基站备用需求的前提下,由铁塔公司组建含大规模5G基站的虚拟电厂(virtual pow...在新型电力系统中,亟待深度挖掘需求侧资源以提升系统灵活性和新能源消纳能力。在“新基建”背景下,5G基站作为一种新型需求侧资源正迅速发展。研究如何在保证基站备用需求的前提下,由铁塔公司组建含大规模5G基站的虚拟电厂(virtual power plant,VPP)并常态化参与需求响应。首先,提出了考虑储能动态备用容量的5G基站运行可行域构建方法,建立了5G基站VPP的聚合模型。然后,建立了5G基站VPP响应负荷准线的日前优化模型,提出了适合对大规模5G基站进行协调控制的日内解聚合方法。最后,建立了含高比例新能源的区域电网仿真算例。仿真结果表明,聚合大规模基站参与准线型需求响应,可以显著降低5G基站的运行成本,同时提高电网的新能源消纳能力。展开更多
在高中电化学学习里,学生的学习由宏观层面进入抽象的微观领域,考验学生的具体形象思维和抽象逻辑思维的相互转换能力。基于OBE理论(Outcome based education又称为成果导向教育、目标导向教育)的教学方法重视学生的个性化发展,能够让...在高中电化学学习里,学生的学习由宏观层面进入抽象的微观领域,考验学生的具体形象思维和抽象逻辑思维的相互转换能力。基于OBE理论(Outcome based education又称为成果导向教育、目标导向教育)的教学方法重视学生的个性化发展,能够让学生获得持久性理解知识。本文将OBE教育理念与高中电化学的大单元教学进行结合,提出了确定目标和学习成果、重视实践应用、团队合作和交流、多元化教学方法的对策。希望为教师在电化学教学时提供更为有效和科学的教学方法和策略,提高学生的学习效果。展开更多
文摘The status quo of Ningxia Ningdong Energy-Chemical Base was introduced first, and the ecological civilization and low-carbon economy of Ningxia Ningdong Energy-Chemical Base were analyzed. Problems in the exploitation of resources in Ningxia Ningdong Energy-Chemical Base, and major factors which restrain the development, were discussed. Countermeasures were put forward at last.
文摘Based on the overall understanding of new cities developing based on resources,by taking Yulin City of Shaanxi Province for example and combining with relevant statistical data,main problems existing in resources development have been pointed out,covering simple resources industrial structure and serious wastes in resources development;insufficient intensive processing of products and low level of resources integrated utilization;and deteriorative regional eco-environment.On this basis,a new mode of landscape ecology of resource-based cities have been proposed,emphasizing constructing new green energy industrial development mode from the perspective of microscopic view;ecological industrial park of circular economy from the perspective of mesoscopic view;and the overall ecological recovery mode of the mining area from the perspective of macroscopic view.It hopes to give a vital inspiration to the sustainable development of new resources-based cities.
文摘在新型电力系统中,亟待深度挖掘需求侧资源以提升系统灵活性和新能源消纳能力。在“新基建”背景下,5G基站作为一种新型需求侧资源正迅速发展。研究如何在保证基站备用需求的前提下,由铁塔公司组建含大规模5G基站的虚拟电厂(virtual power plant,VPP)并常态化参与需求响应。首先,提出了考虑储能动态备用容量的5G基站运行可行域构建方法,建立了5G基站VPP的聚合模型。然后,建立了5G基站VPP响应负荷准线的日前优化模型,提出了适合对大规模5G基站进行协调控制的日内解聚合方法。最后,建立了含高比例新能源的区域电网仿真算例。仿真结果表明,聚合大规模基站参与准线型需求响应,可以显著降低5G基站的运行成本,同时提高电网的新能源消纳能力。
文摘在高中电化学学习里,学生的学习由宏观层面进入抽象的微观领域,考验学生的具体形象思维和抽象逻辑思维的相互转换能力。基于OBE理论(Outcome based education又称为成果导向教育、目标导向教育)的教学方法重视学生的个性化发展,能够让学生获得持久性理解知识。本文将OBE教育理念与高中电化学的大单元教学进行结合,提出了确定目标和学习成果、重视实践应用、团队合作和交流、多元化教学方法的对策。希望为教师在电化学教学时提供更为有效和科学的教学方法和策略,提高学生的学习效果。
