Results 11 to 20 of about 613,647 (161)

Promoting Foreign Language Enjoyment Through Displaying Affiliation in Collaborative Digital Multimodal Composing in Hong Kong ESL Classrooms: Insights From Translanguaging and Transpositioning Perspectives

open access: yesInternational Journal of Applied Linguistics, EarlyView.
ABSTRACT Studies on classroom interactions suggest that displaying affiliation through linguistic and multimodal resources could promote positive emotions like enjoyment, thereby enhancing engagement and enthusiasm in second/foreign language learning.
Karen C. K. Choi, Kevin W. H. Tai
wiley   +1 more source

Selective Recovery of Palladium From Spent Automotive Exhaust Catalysts Using Amidoxime‐Functionalized Calix[4]arene and Subsequent Reduction to Palladium Nanoparticles

open access: yesRare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT Spent automotive exhaust catalysts represent the largest secondary resource of palladium (Pd), and their efficient recovery is essential to support the sustainability of Pd‐related industries. Inspired by supramolecular chemistry, a novel calixarene derivative, 5,11,17,23‐tetra‐tert‐butyl‐25,27‐bis[(N′‐hydroxyacetimidamide)ethoxy]‐26,28 ...
Tao Ge   +8 more
wiley   +1 more source

GIS回路电阻特性研究

open access: yesGaoya dianqi, 2020
GIS回路中导电接触状态关系到GIS的安全运行。文中通过对GIS回路电阻特性的研究,指出了通过直流法测量回路电阻来评估GIS回路接触状态的不足,发现直流法在测量回路电阻时存在一定随机性,且直流法通流时间短、电流幅值小、没有交流电动力的影响,与实际运行时的设备状况相差较大,不能准确反映GIS回路接触的真实情况,也不能用于对GIS回路电接触劣化程度进行准确评估。为了探究实际运行中导体发热和电动力产生的振动等因素对电接触的影响,文中在GIS设备中通过交流电流进行温升试验,并利用交流法计算了温升过程中回路电阻 ...
高凯   +5 more
doaj  

Digital Futures Between Participatory Digital Democracy and Participatory Digital Fascism

open access: yesPolicy &Internet, Volume 18, Issue 3, September 2026.
ABSTRACT This paper explores one of the defining political questions of the twenty‐first century: will digital technologies strengthen democracy or accelerate new forms of authoritarianism and fascism? Against the backdrop of platform capitalism, AI‐driven communication, surveillance infrastructures, disinformation and democratic crisis, the study asks
Christian Fuchs   +2 more
wiley   +1 more source

トランジスタを用いた小信号増幅回路

open access: yes, 2022
制御工学チャンネル https://sites.google.com/view/control-engineering Control Engineering LAB (English) https://sites.google.com/view/control-engineering-lab システム制御工学研究室 https://sites.google.com/view/okajima-lab 理系大学生チャンネル https://sites.google.com/view/rikei ...
岡島, 寛   +4 more
core  

High‐Value Utilization of Typical Vanadium‐Bearing Solid Wastes: Mineralogy, Pathways, and Perspectives

open access: yesRare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Vanadium‐bearing solid wastes (VBSWs) have emerged as a key research priority in resource recovery and environmental remediation because of their high resource value, large generation volume, and complex phase composition. However, practical utilization of these wastes still faces major challenges, including heavy environmental burdens, ill ...
Bowen Duan   +7 more
wiley   +1 more source

ストリップ線回路の等価回路に基づく理論的取扱い -固有モード展開法の適用- (マイクロ波論文(大学発)特集) [PDF]

open access: yes, 2004
マイクロ波・ミリ波といった高周波帯で所望の機能を実現する回路設計では、一般に集中定数回路理論が適用できず、伝送線路回路理論に基づいて回路を設計・解析されている。しかし、設計された伝送線路回路を具体的なマイクロ波・ミリ波帯での導波路で実現する場合、導波路自体がもつ高次伝送モードや導波路接続部が理想的な接続となっていないことによって生じる不要特性を含んでいるため、伝送線路回路理論で設計されたとおりの所望特性が実現されないといった問題が生じる。本論文では ...
Hsu, Jui-Pang   +3 more
core   +1 more source

Garabi Ⅱ HVDC晶闸管阀的运行试验

open access: yesGaoya dianqi, 2003
用合成试验回路对GarabiⅡHVDC晶闸管阀进行了运行试验。这个由传统的背靠背直接试验回路和电压振荡回路组成的合成试验回路能够产生晶闸管阀在实际运行中承受的电流和电压。该试验回路参数的选取接近系统的实际参数。从合成试验回路所获得的样品试验结果和以前从传统的背靠背试验回路获得试验结果是相同的。然而,这种合成试验回路更具有技术上的优势,并且在经济上也优于背靠背直接试验回路。
盛宝良
doaj  

Rapid Removal of Binder From Spent Lithium‐Ion Batteries by Microwave Radiation for Enhanced Flotation Separation of Anode and Cathode Materials

open access: yesRare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Achieving rapid and selective separation of anode and cathode materials remains a critical challenge in the recycling of spent lithium‐ion batteries. This study develops a microwave‐enhanced flotation strategy for the efficient recovery of cathode and anode materials.
Peiyuan Ye   +5 more
wiley   +1 more source

同塔双回输电线路零序阻抗的测量及分析

open access: yesGaoya dianqi, 2011
同塔双回架空输电线路,测量I回线路零序阻抗,II回线路双端短路接地,其三相导线、地线与大地构成零序电流的通路,II回线路亦可等效为连续接地的避雷线,避雷线相当于I回线路的一个二次短路线圈,对I回线路磁场起去磁作用,引起I回线路零序阻抗幅值的降低和相角的变化。笔者理论分析同塔双回输电线路地线连续接地对零序阻抗测量结果准确性的影响,通过EMTP对典型同塔双回输电线路零序阻抗参数进行仿真计算,并且分析了4条500 kV线路、2条220 kV线路的零序阻抗实测结果,提出了现场实际测量中应该注意到的问题 ...
刘博   +5 more
doaj  

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