Results 131 to 140 of about 1,709,387 (277)

A Review of Transient Support and Security‐Stability Enhancement Control Strategies for Grid‐Forming Voltage Source Converter‐Based High Voltage Direct Current Transmission

open access: yesHigh Voltage, EarlyView.
ABSTRACT Amid the ongoing global energy transition, the short‐circuit ratios of AC power grids are continuously decreasing. Grid‐forming voltage source converter‐based high voltage direct current transmission (GFM VSC‐HVDC) systems have therefore come to the forefront of attention.
Cheng Peng   +7 more
wiley   +1 more source

High-power hybrid commutated converter for carbon-neutral power transmission. [PDF]

open access: yesNat Commun
Xu C   +7 more
europepmc   +1 more source

Design and Additive Manufacturing of a Continuous Servo Pneumatic Actuator. [PDF]

open access: yesMicromachines (Basel), 2023
Dämmer G   +5 more
europepmc   +1 more source

US Life Expectancy and Increasing Mortality Rates: An Analysis of the Crisis

open access: yesThe Milbank Quarterly, EarlyView.
Policy Points US life expectancy is shorter than in other high‐income countries and the gap has widened dramatically over time, driven in particular by rising mortality rates that threaten the probability that youth can survive to middle age, or even adulthood.
STEVEN H. WOOLF
wiley   +1 more source

Simulation Study of IGCT with Backside P-N Anode for Low Turn-Off Loss. [PDF]

open access: yesMicromachines (Basel)
Li L   +13 more
europepmc   +1 more source

COMMON SENSE LAW: Making Right/s in the Liberal City

open access: yesInternational Journal of Urban and Regional Research, EarlyView.
Abstract This article, co‐authored by encampment and university scholars, is concerned with how homeless persons challenge rightlessness. We do so by advancing a conceptual framework of common sense law, arguing that such contestations take place not only in courtrooms but also in the lived spaces of homelessness.
Ananya Roy   +3 more
wiley   +1 more source

A Suppression Method of Commutation Failure in LCC-UHVDC Systems Based on the Dynamic Tracking of the Turn-Off Angle Setting Value

open access: yes
Commutation failure is still one of the most common faults in LCC-UHVDC (line commutated converter-based, ultra-high voltage direct current) systems, and if the inverter side, extinction angle, and rectification value remain constant during the fault, it
Hua Wang   +5 more
core   +1 more source

TAXI, CHILLI AND MOBILE PARTY BRANCH: Reterritorialization of Migrants in Urban Villages, Shenzhen

open access: yesInternational Journal of Urban and Regional Research, EarlyView.
Abstract In China as well as in other countries, migrants often grapple with urban inequities by actively reshaping the functions and meanings of their environments. While acknowledging established frameworks such as place‐making and urban informality, this study adopts a complementary lens, framing migrants’ everyday practices as a process of ...
Xinrui Gao, Jennifer Day, Sun Sheng Han
wiley   +1 more source

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