Results 21 to 30 of about 1,403,812 (145)
ABSTRACT This qualitative multiple case study explores multilingual postgraduate students’ academic identities through writing at an EMI university in Hong Kong, with a focus on how they gain legitimacy in knowledge‑making with their multilingual repertoires. Grounded in a poststructuralist understanding of identities as fluid and negotiated, the study
Siqi Song, Ken Lau
wiley +1 more source
随着矿石能源储量的减少,应大力开发和应用以能源植物为主的生物质能。针对在开发和利用能源植物资源过程中遇到的问题,从生物质能角度出发,对能源植物进行了归类,介绍了能源植物的开发历史和国内外利用现状,总结了能源植物的利用方式,分析了我国开发 ...
陈英明, 肖波, 常杰
core +4 more sources
ABSTRACT Self‐directed Learning (SDL) is an important skill for learners of all ages and phases of life. Generative AI facilitates self‐directed second language (L2) learning by providing interactive, personalised access to online resources. However, existing research on AI‐assisted self‐directed L2 learning focuses on adult learners in higher ...
Qing Ma +4 more
wiley +1 more source
针对源分离尿液富含氮、磷等多种营养元素,且具有较高资源回收潜力的特点,首先概述了源分离尿液的特征,重点总结了源分离尿液的氮、磷回收技术(浓缩脱水技术、吸附技术、化学沉淀技术、生物处理技术、电化学技术),并对各项技术的研究进展进行了阐述;然后分析了源分离尿液在农业生产和同步产电领域的应用价值;最后通过展望源分离尿液的发展趋势,指出未来应进一步提高源分离尿液处理过程中氮、磷资源的回收率并将其应用于实际污水处理,以期为真正实现源分离尿液的资源化、无害化和规模化提供参考。
王舒, 李楠
doaj +2 more sources
Resource Substitution: Local Governments' Issue Attention and Policy Reinvention
ABSTRACT Research on policy reinvention, where a government modifies rather than replicates policy innovations introduced by other governments, has progressed significantly, but how it is influenced by the government's issue attention has not been thoroughly examined.
Yingxin Zhang, Yixue Yao, Kaifeng Yang
wiley +1 more source
ABSTRACT This study explores environmental justice issues in coastal food systems, focusing on conflicts between small‐scale fisheries and the energy sector due to differing goals in managing food and energy sources. It does so by examining the interdependence between institutions, policies, and different types of knowledge; key elements in building ...
Mateus Henrique Amaral +6 more
wiley +1 more source
扎龙与向海国家级自然保护区湿地资源共性问题及其可持续对策探析
在剖析扎龙自然保护区和向海自然保护区的生物资源、土地资源、水资源以及旅游资源等湿地资源的基础上,探析了两自然保护区湿地资源所面临的退化、污染加剧、生境破碎化等主要的共性问题,并由此提出了自然保护区湿地资源的可持续开发利用与保护对策.
白军红 邓伟
doaj
ABSTRACT This critical ethnographic study examined the perspectives of service providers and organizational leaders working within charitable food services for people experiencing homelessness in two Canadian cities. Informed by Paulo Freire's writings and a human rights‐based approach, we explored how power is enacted through everyday practices and ...
Corinna Easton +4 more
wiley +1 more source
光合细菌污水资源化是一种新兴的有机废水处理及生物资源转化技术。光合细菌能够高效处理污水,同时把碳氮磷转化为有用的菌体细胞,可用于水产、畜禽养殖和农作物培育。从光合细菌污水资源化技术对营养型废水的资源化、对高氨氮废水的高效氮去除、对其他类型废水的处理、光合细菌污水处理重要影响因素、主要促进方法5个方面进行了综述。最后对未来的研究进行了展望。
张光明, 孟帆, 曹可凡, 郅然
doaj +2 more sources
考虑多能互补和负荷不确定性的区域综合能源系统优化定容与资产利用效率分析 [PDF]
电、气、热等多种能源的耦合使得区域综合能源系统能够通过多能互补协同利用,提高运行的灵活性和经济性。通过投资能源供给和转换设备能够提升区域综合能源系统运行灵活性,但其与投资成本、设备利用情况通常是对立的。在充分考虑多能互补和负荷水平不确定性的前提下,对区域综合能源系统进行优化定容和资产利用效率分析。首先,基于能源集线器模型构建了区域综合能源系统的多能互补协调优化模型。考虑在长时间尺度内多能互补的执行及负荷不确定性对资产利用效率的影响,建立了区域综合能源系统设备的双层鲁棒优化定容模型。接着 ...
王盛, 丁一
doaj +1 more source

