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电路的量纲模型与相似性原理和对偶性原理 被引量:2
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作者 朱明 朱嘉慧 《电工技术》 2024年第9期7-15,19,共10页
宇宙量纲模型的思想适用于任何系统,物理系统适用,电路系统也同样适用。系统地分析总结了电路运行的基本原理,确定了电路系统的量纲,提出了电路的量纲模型、相似性原理和对偶性原理及规律拓展性原理等概念,并给出了相似性原理和对偶性... 宇宙量纲模型的思想适用于任何系统,物理系统适用,电路系统也同样适用。系统地分析总结了电路运行的基本原理,确定了电路系统的量纲,提出了电路的量纲模型、相似性原理和对偶性原理及规律拓展性原理等概念,并给出了相似性原理和对偶性原理的一些应用实例。 展开更多
关键词 量纲模型 相似性原理 对偶性原理 规律拓展性原理 互变器 互转器
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基于理想变压器的耦合电感和实际变压器模型 被引量:3
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作者 朱明 朱嘉慧 +1 位作者 陈息坤 郁镓瑄 《电工技术》 2022年第1期34-41,45,共9页
理想变压器、电感、电抗器、耦合电感、实际变压器与互感器等是一系列相关又有区别的元器件,但其知识却呈现碎片化状态。分析总结了理想变压器的特性,阐述了理想变压器的归一化原理,提出了电磁元器件的电路集总参数外析方法,统一了耦合... 理想变压器、电感、电抗器、耦合电感、实际变压器与互感器等是一系列相关又有区别的元器件,但其知识却呈现碎片化状态。分析总结了理想变压器的特性,阐述了理想变压器的归一化原理,提出了电磁元器件的电路集总参数外析方法,统一了耦合电感两种去耦方式,得到了电抗器与耦合电感、实际变压器及互感器的结构化电路模型。分析了耦合电感与实际变压器的关系,厘清了电磁元器件的分类,梳理了从实际变压器到耦合电感再到理想变压器乃至隔离器的演变过程,从而形成了较清晰和较完整的电路局部知识体系。 展开更多
关键词 耦合电感 变压器 结构化模型 参数外析法
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平稳电路的分类与旋量法解算 被引量:5
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作者 朱明 朱嘉慧 《电工技术》 2023年第3期85-96,共12页
在电路模型中,平稳电路最为基础、应用最为广泛,但其中相量的概念较为抽象,是电路分析的难点。分析了平稳电路的基本原理,对平稳电路进行了完整分类,定义了旋量法的概念,提出了采用旋量法分析单相平稳电路、两相平稳电路和三相平稳电路... 在电路模型中,平稳电路最为基础、应用最为广泛,但其中相量的概念较为抽象,是电路分析的难点。分析了平稳电路的基本原理,对平稳电路进行了完整分类,定义了旋量法的概念,提出了采用旋量法分析单相平稳电路、两相平稳电路和三相平稳电路的方法,统一了直流、元谐、简谐、多谐与交直流组合基础物理量的表达式和分析过程,建立了较为完整的平稳电路分析体系。 展开更多
关键词 平稳电路 正弦交流电路 复电路模型 相量法 旋量法
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Place in Movement:Tracing Human-Altered Landscapes Along the Niagara Escarpment
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作者 Adrienne MARIANO Jessica PALMER 《景观设计学(中英文)》 CSCD 2024年第4期94-100,共7页
The Niagara Escarpment,a 440-million-year-old landform,cuts through a property owned by the University of Toronto in Caledon,Ontario in Canada.The property juxtaposes impacts from historical quarrying activity which b... The Niagara Escarpment,a 440-million-year-old landform,cuts through a property owned by the University of Toronto in Caledon,Ontario in Canada.The property juxtaposes impacts from historical quarrying activity which burrowed directly into the Escarpment’s slope,the greater context of the region’s urban development demands,and the Escarpment’s identity as an ancient geological formation,ecological refugium,and old-growth forest housing ancient species such as Thuja occidentalis.This project explores the university’s responsibility in advocating for the protection of the Escarpment’s unique ecologic conditions,including the distinct cliff ecosystems and the novel successional plant communities evolving on sites of former quarry activities.Interventions on the trail system,cave bridges and lookouts,and the boardwalk and path system,along with guidance of signage and trail markers,will bring visitors to areas where former quarry activities sculptured the Escarpment’s limestone faces and are now reclaimed by a system of lush novel wetlands and habitats in evolutionary stages.Connecting to a system of existing public trails,this project leverages the university’s educational and recreational objectives to form new strategic partnerships with local conservancy groups,aiming at monitoring and managing access and habitat protection. 展开更多
关键词 Niagara Escarpment Industrial Heritage Abandoned Quarry Ecological Habitat GEOLOGY WETLAND Trail System
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Auto-Ethnography: Connecting to the Nearby
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作者 Ying ZHENG 《景观设计学(中英文)》 CSCD 2024年第6期114-120,共7页
This project delves into the establishment of place attachment in evolving landscapes through an interdisciplinary lens.It starts with the interpretation of the story of A-Fei,a mushroom forager in Yunnan,China from t... This project delves into the establishment of place attachment in evolving landscapes through an interdisciplinary lens.It starts with the interpretation of the story of A-Fei,a mushroom forager in Yunnan,China from the perspective of multispecies ethnography,revealing that place attachment is tied to the nearby,where everyday interactions with the surrounding landscape can evoke memories of hometown and generate meanings of a new residence.Extending these insights,this project adopts auto-ethnography to examine the author’s experiences in the multicultural city of Toronto to explore how she as an immigrant builds an attachment to the local landscape.Through sensory engagement,cultural observation,and interviews of the other immigrants,how magnolias facilitate a new sense of belongings has been found.This project aims to transcend disciplinary boundaries and expand the realm of landscape architecture to anthropologic perspectives.By emphasizing the co-evolution of human and non-human lifeways,it seeks to explore how individuals perceive landscape and build relationship with it and proposes “ethnographizing landscape architecture” as avalue-centered approach for socially impactful and contextuallyrelevant design. 展开更多
关键词 AUTO-ETHNOGRAPHY Multispecies Ethnography Place Attachment Landscape Perception STORYTELLING
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