Results 31 to 40 of about 8,199 (116)

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

Engineering 2D Materials for High‐Current‐Density Electrocatalytic Water Splitting

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT Water electrolysis is a key method for sustainable hydrogen production, using water as an abundant resource. However, efficient and stable operation at high current densities remains challenging due to energy losses, catalyst degradation, and limited ion–electron transport.
Tianqi Guan   +8 more
wiley   +1 more source

Cu‐Enhanced Medium‐Entropy TiZrCoCrMo Alloys: Balancing Superior Antibacterial and Osteogenic Properties for Orthopedic Implants

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT This study introduces novel nonequiatomic TiZrCoCrMoCux (x = 0, 5, 10; at%) medium‐entropy alloys (MEAx) tailored for orthopedic implants, synergistically combining the biocompatibility of Ti‐based alloys, the wear resistance of CoCrMo alloys, and the antibacterial/osteogenic attributes of Cu. The alloy's microstructure, mechanical properties,
Hang Yu   +9 more
wiley   +1 more source

Blockchain and Quantum Technologies for Securing the Global Nuclear Supply Chain: Synergies, Applications, Technical Challenges and Opportunities

open access: yesJournal of Critical Infrastructure Policy, Volume 7, Issue 1, Spring/Summer 2026.
ABSTRACT The infiltration of counterfeit, fraudulent, and suspect items into civil nuclear supply chains, notably within power generation and medical isotope production, poses severe safety and security threats. The ever‐increasing growth in nuclear installations (70 power plants are under construction and another 100 are in the planning stage) and the
Hafiz Ahmed
wiley   +1 more source

Enhancing the Ionic Conduction of Ceria‐Based Electrolytes for LT‐SOFCs via Entropy Engineering

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT Developing alternative electrolytes with enhanced ionic conductivity is crucial to reducing the operating temperature of solid oxide fuel cells (SOFCs) for broader applications. Entropy engineering offers many opportunities for material design, presenting a promising avenue to develop new electrolytes.
Xiu‐Xiu Li   +6 more
wiley   +1 more source

新型电力系统下储能政策及商业模式分析

open access: yesGaoya dianqi, 2023
中国能源结构的变革促成了电力系统的转变,储能加入新型电力系统,有助于维持系统的安全、稳定。因此,多能互补和“源网荷储一体化”是新型电力系统的发展趋势。文章首先从“十四五”期间国家及地方出台的储能产业相关政策出发,着重梳理了新能源配储、电价机制完善以及电力市场改革三方面的政策,研究在政策指导下,储能将自身功能效益与经济效益变现的方法。其次,将储能应用场景与储能现有技术类型相结合,明确不同类型的储能技术在不同应用场景中的价值定位。最后,基于当前采用“自投资+自运营”储能商业模式时投资方难以找准收益点的现象 ...
李建林   +4 more
doaj  

Boosting TiO2 Photocatalytic H2O2 Production via S, N‐Codoped Lignin‐Derived Carbon Dots: Quantifying the Enhancement Role

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT Carbon dots (CDs) have emerged as promising modifiers for boosting the photocatalytic H2O2 production, yet their precise role remains to be quantitatively elucidated. Herein, S, N‐codoped lignin‐derived carbon dots (SN‐LCDs) and lignin‐derived carbon dots (LCDs) were synthesized and employed to modify TiO2.
Bin‐Peng Zhang   +6 more
wiley   +1 more source

基于新能源发电的构网型协调储能控制策略研究

open access: yesGaoya dianqi, 2023
中国正加速构建以新能源为主体的新型电力系统,其在缺少同步机后,没有了阻尼和惯性支撑,会导致系统稳定性下降,因此构网型控制技术(GFM)应运而生。在此基础上基于新能源发电的构网型控制需要某种形式的能量存储与发电装置耦合。此时储能系统(ESS)可在变流器的直流侧或交流侧耦合接入。文中提出了一种基于新能源发电的构网型协调储能控制策略,该策略允许安装在变流器交流侧的ESS具有与安装在变流器直流侧获得的相同的特性和动态行为。此外,所提出的控制还可以协调储能保证系统在新能源不能正常发电时 ...
郑云平   +3 more
doaj  

Beyond Motivation: Modeling the Predictive Role of L2 Pride in Informal Digital Learning of English

open access: yesInternational Journal of Applied Linguistics, Volume 35, Issue 4, Page 1938-1952, November 2025.
ABSTRACT This study investigates the role of second language (L2) pride—an understudied affective factor—in shaping learners’ language learning motivation and involvement with informal digital learning of English (IDLE). Drawing on questionnaire data from 1388 Chinese university EFL students, the study employs structural equation modeling to examine ...
Minlin Minny Zou   +3 more
wiley   +1 more source

Institutions, in time: Designing feedback pathways for shared infrastructure transitions

open access: yesPolicy Studies Journal, Volume 53, Issue 3, Page 654-680, August 2025.
Abstract Electric utilities, challenged by a rapidly unfolding energy transition, use many informal institutions to bridge across technologies and sectors. Little is known, however, about how electric utility systems and other polycentric systems' institutions‐in‐use vary and evolve over time.
Matthew Grimley   +6 more
wiley   +1 more source

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