Results 11 to 20 of about 2,532 (155)

Characterization and autonomous control method of abnormal working conditions of super-long flexible suspended solid backfilling scraper conveyor [PDF]

open access: yes
Solid backfilling scraper conveyor is a key equipment of solid backfilling mining technology, and the degree of its high efficiency and intelligence restricts the development of solid intelligent backfilling mining technology.
Bin ZHANG   +7 more
core   +1 more source

Model predictive control strategy for three-level NPC rectifier–inverter drive system without weighting factor [PDF]

open access: yes
The three-level converter has become the mainstream converter topology because of its good output power quality and high power factor. The three-level dual pulse width modulation frequency speed control system with rectifier–inverter structure has become
Chenwei LIU   +4 more
core   +1 more source

Research on Tidal Optimization of Voltage Overrun Problem in Photovoltaic Distribution Network With Electrical Energy Router [PDF]

open access: yes
ObjectivesWith the access of high-penetration distributed photovoltaic to the distribution network, the problems of power back-feeding and voltage overrun become more and more serious.
FENG Zining   +3 more
core   +1 more source

Manipulating Terminal Bonds of Ti3C2Tx MXene for Highly Efficient Microwave Absorption and Photothermal Conversion

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT MXenes have been widely investigated as microwave absorption (MA) materials because of their unique properties. This study introduces a terminal bond manipulation strategy to enhance charge transfer and polarization in Ti3C2Tx, optimizing its MA performance.
Xiang Fang   +8 more
wiley   +1 more source

The Research and Realization of Low Stand-by Power Technology in Colour Television [PDF]

open access: yes, 2008
当前世界各国,特别是发达国家,都非常注重环保和节能问题,低待机功耗电子设备有望节约非常可观的电力能源。我国是世界上彩色电视机的生产大国,但大部分产品都无法达到低待机功耗的要求,待机功耗在3W以上。本文是基于外销CRT高清晰彩色电视机设计和开发项目的实践基础上,研究和探讨在一定的成本范围内降低CRT彩色电视机待机功耗的设计与实现方法。本文的创新点在于通过正确选用电源技术方案和对MCU供电电路进行优化设计来达到目标,对生产指导有很强的现实意义。 彩色电视机在待机状态 ...
胥进舟
core  

MXene‐Based Materials: Compositional Engineering for High‐Performance Microwave Absorption

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT The rapid advancement of aerospace and electronic information technologies has imposed increasingly stringent requirements on microwave absorbing materials (MAMs), such as high absorption efficiency, lightweight, and environmental stability, making the development of advanced MAMs urgent for both civilian and national defense applications ...
Pan‐Pan Zhou   +8 more
wiley   +1 more source

Robust resource allocation algorithm for heterogeneous wireless networkwith SWIPT [PDF]

open access: yes, 2019
To improve energy efficiency and robustness of heterogeneous wireless networks with wireless information and power transfer,the robust joint transmit power and power splitting resource allocation problem was studied.Based on mini-max probability machine ...
Guoquan LI   +4 more
core   +1 more source

Tantalum‐Driven Interfacial Reconstruction Enables Ultra‐Low Contact Resistance in TiAlTa/Au GaN HEMTs

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT The transformative potential of gallium nitride high electron mobility transistors (GaN HEMTs) in advancing carbon‐neutral power systems remains bottlenecked by contact resistance (Rc) at the metal–semiconductor (M‐S) interface, a critical determinant of switching losses and frequency response.
Ji‐Zhou Zhang   +8 more
wiley   +1 more source

Surface‐Embedded Ag@Multilayer Graphene for Photothermal‐Enhanced Superhydrophobic Anti‐Icing Coatings

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT Harnessing solar energy for self‐heating presents an effective strategy to suppress surface ice formation. In this paper, we fabricated nano‐silver‐modified multilayer graphene sheets (Ag@MGs) that integrate photothermal and superhydrophobic properties for anti‐icing applications.
Yihan Zhang   +7 more
wiley   +1 more source

Design and Implementation of Decision Support System for Economic Operation of Transformer [PDF]

open access: yes, 2011
电力广泛应用于国计民生各个领域当中,是一种重要的优质二次能源。在电力系统发、供、用电的过程中,存在着巨大的电能损耗,其中变压器的损耗约占电力系统线损的50%左右。在当前国际能源危机的背景下,设法降低变压器的电能损耗,提高电网输电的效率,是电力系统智能电网建设的基本要求,符合国家绿色能源规划的目标。 变压器经济运行节电技术属于知识经济范畴,是一种向智力挖潜、向管理挖潜实施内涵节电的科学方法。变压器经济运行系统建立在变压器经济运行理论的基础上,辅助运行人员确定变压器经济运行方式,具有运算速度快 ...
王永光
core  

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