Results 41 to 50 of about 6,902 (167)

Reconceptualising Motivation as Material‐Semiotic Entanglements: Translanguaging in Graduate TESOL Education

open access: yesInternational Journal of Applied Linguistics, EarlyView.
ABSTRACT Multilingual students in Anglophone universities often operate in survival mode. While translanguaging supports learning, critical gaps remain in understanding how translanguaging pedagogies transform and sustain motivation in English‐dominant contexts.
Melissa Jufenna Slamet, Julie Choi
wiley   +1 more source

Genomic responses to increased temperature and pollinator selection in Brassica rapa L.

open access: yesNew Phytologist, Volume 250, Issue 2, Page 1231-1247, April 2026.
Summary Rapid environmental change reshapes both abiotic stress and biotic interactions, yet it remains unclear how these combined forces structure plants' genomic adaptation. In particular, the joint influence of temperature and pollinator identity, two ecological axes undergoing simultaneous global shifts, has rarely been quantified at genomic ...
Yanqian Ding, Florian P. Schiestl
wiley   +1 more source

英国新型电力系统频率管理及对中国电网建设的启示 [PDF]

open access: yes全球能源互联网
英国是世界上新能源发电接入率最高的国家之一,新型电力系统的特点在英国已经较为明显。英国总调在频率管理方面的成果和经验对中国新型电力系统建设有很高的借鉴价值。首先研究分析了英国总调在新型电力系统建设中,在频率管理方面遇到的风险及其产生机理。然后研究分析了英国总调应对风险的方案和实践经验。最后,研究分析了英国总调在频率管理方面的方案和实践经验对中国新型电力系统建设中频率管理的启示。参照英国的频率管理体系和辅助服务市场建设路径,中国应当重点关注频率管理体系的完善、系统惯量需求的研究和频率支撑技术的研发及应用 ...
李云*, 陈图南, 黄福全
doaj   +1 more source

Design and Implementation of Indoor Car-Finding Location and Navigation System [PDF]

open access: yes, 2016
近年来,随着人们生活水平的不断提高,汽车的个人拥有量倍增,社会汽车数量急速增长。面对广阔如迷宫的室内停车场,很多人都有转了好几圈才找到车位的经历,取车时也不知道如何能最快地找到车子。 为解决这个问题,本文设计并实现了一个室内寻车定位导航系统。本文为移动终端设计一个Android应用软件,该应用软件通过Android移动终端上的WiFi、电子罗盘、加速度传感器来完成导航定位功能。该系统最大的特点在于部署简单,不需要额外的部署设备,仅使用现有的WiFi网络和一个移动终端就可以为用户提供导航定位服务 ...
张坤
core  

Regulating TGO Nucleation and Growth of MCrAlX Coatings via Femtosecond Laser Remelting: The Role of Reactive Elements in the Oxidation Resistance

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT MCrAlX coatings are widely used as bond coats in thermal barrier coating systems to protect turbine blades from high‐temperature oxidation. However, their oxidation resistance is often restricted by uncontrolled microstructures, surface roughness, and aggregation of reactive elements (REs). In this study, high‐repetition‐rate femtosecond laser
Wei Qian   +7 more
wiley   +1 more source

高压变频器在SO2风机中的应用

open access: yesGaoya dianqi, 2008
由于生产过程中系统烟气量波动较频繁,且波动范围较大,为达到调节准确、减小对电网的冲击、节省能源的目的,在SO2风机中采用了高压变频调速技术。从3个方面论述了变频调速的技术方案的优缺点,从高压变频调速系统的工作原理、系统结构、控制系统组成等方面阐述了高压变频器的技术特点,从而论证了高压变频器在使用中的优越性及显著的节电效果。
熊品华
doaj  

Design and Implementation of Monitor System in Large Hydropower Station [PDF]

open access: yes, 2015
我国大规模发展高耗能、高污染产业的代价就是今后昂贵的环境恢复成本和多地的雾霾天气,越来越多的人开始关注和呼吁清洁能源的开发和利用。水能发电作为一种清洁可再生能源,越来越多的被世界各国开发和利用。水能发电具有经济效益突出、减少污染物排放、开停机速度快,同时可兼顾防洪、通航、灌溉、养殖等综合效益的优点。目前水能发电在我国已成为稀缺资源,如何更好的开发利用大型水电站监控系统提高水电站综合发电效率,减轻员工工作量,成为亟待解决的问题。 本文以大型水电站监控系统为研究对象,从需求分析、系统设计、功能实现 ...
刘玮璘
core  

Enhanced Low‐Frequency Microwave Absorption and Corrosion Resistance of FeSiAl Using Low‐Melting‐Point Glass Phase Coatings

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT This study developed a FeSiAl@LMPGP composite material to address the demand for low‐frequency electromagnetic absorption. Through controllable heat treatment, FeSiAl particles and PbO nanoparticles self‐assembled into a high‐density Mott–Schottky heterointerface structure, which exhibited a significant built‐in electric field (BIEF) effect ...
Yuqi Wang   +5 more
wiley   +1 more source

Study and Design of V2G system based on Grid-connected PV Power Generation [PDF]

open access: yes, 2016
随着分布式可再生能源渗透率的不断提高,光伏等可再生能源接入电网的方式更加多样。同时近年来电动汽车飞速发展,解决充电问题已成为当务之急。在减少大规模充电对电网产生影响的同时,将电动汽车作为储能单元参与电网的调峰调频有利于电网的安全经济运行。本文研究基于光伏发电的V2G系统,旨在增加新能源消纳并促进电动汽车的清洁化和低碳化。系统的最大创新点在于实现了光伏发电并网、电动汽车充电与V2G服务的分时复用。 针对家庭单相并网选取了双向两级式的电路拓扑,不仅结构简单而且易于控制。对双向全桥电路和Buck ...
孙纯鹏
core  

Orbitally Driven Anomalous Thermal Transport Under High Pressure in Gallium Nitride

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT Extreme conditions such as high pressure offer opportunities for innovative materials design and applications. For over a century, studies on thermal transport in crystals under high hydrostatic pressure have shown that lattice thermal conductivity generally exhibits a monotonic increase with pressure.
Zong‐Hao Yuan   +8 more
wiley   +1 more source

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