Results 41 to 50 of about 643 (186)

Harnessing Thin‐Film Solid‐State Electrolytes: Enabling Breakthroughs in All‐Solid‐State Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Schematic illustration highlighting the advantages of transitioning from traditional thick solid‐state electrolytes (SSEs) to thin‐film SSEs. Thinning the electrolyte enables higher ionic conductivity, reduced interfacial polarization, improved flexibility, compact electrode contact, and enhanced energy density, offering a promising pathway toward high‐
Yitao He, Haoyang Cheng, Li Wang, Xiangming He   +3 more
wiley   +1 more source

A lightweight MMC topology with recombined half‐bridge submodules for DC fault ride‐through

IET Generation, Transmission & Distribution
The lightweight of modular multilevel converter (MMC) and the DC faults ride‐through ability are main challenges for MMC‐high voltage direct current (HVDC) transmission systems.
Yutao Xu, Zhukui Tan, Jikai Li, Qihui Feng, Zhuang Wu   +4 more
doaj   +1 more source

De‐Carbonizing the Transport Sector on the University Campus: A Techno‐Economic‐Environment Assessment and Optimization of PV Fed Electric Bicycles Amid Global Fuel Crisis

Energy Science &Engineering, EarlyView.
This study develops and evaluates a solar PV‐fed electric bicycle system optimized for university campuses in Pakistan. The techno‐economic analysis demonstrates significant fuel savings, emission reductions, and sustainability benefits, promoting a cost‐effective, eco‐friendly, and renewable transportation alternative amid rising global fuel and ...
Muhammad Abdullah Khan, Syed Ali Abbas Kazmi, Qamar uddin, Muhammad Umair Iftikhar, Muhammad Waseem   +4 more
wiley   +1 more source

Review of the Configuration and Transient Stability of Large-Scale Renewable Energy Generation Through Hybrid DC Transmission

CES Transactions on Electrical Machines and Systems
Based on the complementary advantages of Line Commutated Converter (LCC) and Modular Multilevel Converter (MMC) in power grid applications, there are two types of hybrid DC system topologies: one is the parallel connection of LCC converter stations and ...
Xinshou Tian, Yongning Chi, Longxue Li, Hongzhi Liu   +3 more
doaj   +1 more source

Controllable DC‐link fault current limiter augmentation with DC chopper to improve fault ride‐through of DFIG

IET Renewable Power Generation, 2017
Doubly fed induction generator (DFIG) based wind turbines are sensitive to grid faults due to utilising small‐scale rotor side converter (RSC). The application of crowbar protection to improve the fault ride‐through (FRT) capability of the DFIG converts it to a squirrel cage induction generator, which makes it difficult to comply with grid codes.
Amin Jalilian, Seyed Behzad Naderi, Michael Negnevitsky, Mehrdad Tarafdar Hagh, Kashem M. Muttaqi   +4 more
openaire   +3 more sources

Beggars as Rational Choosers

Southern Economic Journal, EarlyView.
ABSTRACT American municipalities increasingly regulate panhandling. That regulation is controversial. The determinants of panhandling activeness are unknown, and it is doubted whether panhandling activity responds rationally to incentives. To shed light on these issues, we collect data on hundreds of panhandlers and the passersby they solicit at ...
Peter T. Leeson, R. August Hardy, Paola A. Suarez   +2 more
wiley   +1 more source

DC Fault Analysis of Modular DC/DC Converter Employing a New Submodule With Damping-Resistor

IEEE Access, 2018
DC transformer is the key equipment to interconnect the high voltage dc systems with different voltage levels and build dc grid. Compared with the dc/ac/dc converter based on modular multilevel converter, the non-isolated modular dc/dc converter (MDCC ...
Hongcheng You, Xu Cai, Liangzhong Yao, Yuanzhi Cao, Zhibing Wang   +4 more
doaj   +1 more source

‘Enthusiasts’ and ‘Fanatics’: The Decembrists as a Case Study in French Influence on Russian Culture, Emotions and Thought

History, EarlyView.
Abstract Participants in Russia's 1825 Decembrist uprising against the Tsarist regime were, quite literally, a case study in French cultural influence upon Russia. This is particularly true as it relates to Russia's emotional cultures. Although this has not, traditionally, been the primary focus of historical analysis of this event (in Soviet or ...
ADAM COKER
wiley   +1 more source

Isolation and Protection of the Motor-Generator Pair System for Fault Ride-Through of Renewable Energy Generation Systems

IEEE Access, 2020
Renewable energy units are required to have reliable fault ride-through capability to prevent large-scale disconnection of renewable energy plants due to grid faults.
Yujun Gu, Yongzhang Huang, Qianyu Wu, Chenyang Li, Haisen Zhao, Yang Zhan   +5 more
doaj   +1 more source

HYPERSCALING HOUSING: Venture Capital, Real Estate Start‐Ups and the Race to Build a Global Residential Brand

International Journal of Urban and Regional Research, EarlyView.
Abstract What happens when venture capitalists try to reinvent housing in their own image? Synonymous with the rise of Big Tech, venture capitalists (VCs) are asset managers that invest in early‐stage companies, pursuing aggressive growth and market domination. Since the 2008 financial crisis, VCs have poured huge sums into real estate start‐ups.
Tim White
wiley   +1 more source