Results 21 to 30 of about 3,029,816 (219)

Arc root commutation from moving contacts in low voltage devices [PDF]

, 2000
This paper focus on the arc commutation from a moving contact and in particular on the anode motion of a high current arc in low voltage current limiting circuit breakers.
Weaver, P.M., J.W. McBride, Pechrach, K., K. Pechrach, McBride, J.W., P.M. Weaver   +5 more
core   +1 more source

Procedure analysis of UHVDC commutation failure

, 2019
There may be a commutation failure during a fault or start-up of the UHVDC inverter side. The law of commutation failure process in UHVDC converter is studied here. First, the cause of inverter commutation failures is briefly introduced.
Chi Zhang, Peng Li, Xiangping Kong, Yubo Yuan, Chenqing Wang   +4 more
core   +1 more source

Research on Commutation Failure in Multi-feed HVDC Transmission System

, 2020
HVDC transmission systems present a risk of commutation failure. For multi-infeed HVDC transmission systems, due to the interaction between AC and DC systems, the commutation failure of a single inverter station may cause multiple inverter stations to ...
Hao YU, Jiaming WANG, Wuhui CHEN
core   +1 more source

Addressing racialised awarding gap in higher education: Insights from personal tutors

British Educational Research Journal, EarlyView.
Abstract Situated within a wider cross‐institutional research project, this article provides an in‐depth case study of one higher education (HE) institution, focusing on how personal tutors make sense of racialised degree awarding disparities for both undergraduate and postgraduate students, how they perceive their responsibilities, the challenges and ...
Benjamin Ajibade, Rick Hayman, Angela Hibbs, Josephine Gabi   +3 more
wiley   +1 more source

Powerful transformations: The experiences of higher education teaching staff who were first‐generation university students

British Educational Research Journal, EarlyView.
Abstract Historically, a university education has been seen primarily as a route for the middle classes to achieve professional qualifications while structural barriers have served to restrict entry to individuals from particular demographics. First‐generation students (FGS), often with low socio‐economic backgrounds, face multiple barriers to Higher ...
Helen Williams, Ellen‐Alyssa Gambles
wiley   +1 more source

Carrion ecology: concepts, interdisciplinary synthesis, and perspectives

Biological Reviews, EarlyView.
ABSTRACT Carrion is a ubiquitous resource in both terrestrial and aquatic ecosystems, yet it has long been overlooked in ecological research. Over the past two decades, studies on carrion and the many organisms that exploit it have flourished, revealing not only wide‐ranging ecological functions but also significance far beyond ecology.
Marcos Moleón, José A. Sánchez‐Zapata, Travis L. DeVault, Wayne M. Getz, Zebensui Morales‐Reyes, Daniel Redondo‐Gómez, Lara Naves‐Alegre, Solange A. Batista‐Nunes, Esther Sebastián‐González, Juan M. Pérez‐García, Kelly A. Waters, Thijs van Overveld, Craig Smith, Nuria Selva, Thomas A. Schlacher, Graeme Ruxton, Jesús Rodríguez, Martina‐M. Quaggiotto, Paula L. Perrig, Norman Owen‐Smith, Thomas M. Newsome, Isabel Navas, Yoshihiro Nakashima, Ana Mateos, Carlos Martínez‐Carrasco, Daniel Martín‐Vega, Berta Martín‐López, Antoni Margalida, Sergio A. Lambertucci, Adam Kane, Kevin Healy, Akane Hashizume, Antonio J. García‐Fernández, José A. Donázar, M. Eric Benbow, James C. Beasley, Philip S. Barton, Kathleen A. Alexander, Eneko Arrondo   +38 more
wiley   +1 more source

Managers' Values and the Adoption of Environmentally Sustainable Practices Among Small and Medium‐Sized Enterprises: A Configurational Approach

Business Strategy and the Environment, EarlyView.
ABSTRACT Small and medium‐sized enterprises (SMEs) play a critical role in sustainability transitions, yet the mechanisms through which managers' values shape environmentally sustainable practices (ESP) remain insufficiently understood. Existing research often treats managerial values as independent predictors and pays limited attention to their ...
Marie Romuald Bernard Pouka Pouka, François Labelle, François L'Écuyer   +2 more
wiley   +1 more source

Design-Oriented transient stability analysis of LCC-HVDC inverter with DC voltage control under grid fault

International Journal of Electrical Power & Energy Systems
Subsequent commutation failure (SCF) is an inherent issue for the line-commutated-converter based high voltage direct current (LCC-HVDC) in the receiving end.
Zhiwei Lei, Junpeng Ma, Shunliang Wang, Ning Jiao, Tianqi Liu, Ruiting Xu   +5 more
doaj   +1 more source

Drivers of Scope 3 Emissions Disclosure Quality—CDP Analysis

Business Strategy and the Environment, EarlyView.
ABSTRACT Scope 3 emissions account for a significant portion of a supply chain's carbon footprint, yet very little research explores the key drivers of high‐quality Scope 3 disclosures. Additionally, while climate governance is a vital part of both improving carbon performance and ensuring corporate accountability, its broader impact on disclosure ...
Xintao Li, Binh Bui, Thanh Phan
wiley   +1 more source

Peer Versus Top Management Communication and Energy‐Saving Behavioural Intentions in the Workplace: The Moderating Role of Personalised Framing

Business Strategy and the Environment, EarlyView.
ABSTRACT Employee engagement is pivotal for corporate sustainability, yet the role of information design in internal employee communication remains under‐specified. Drawing on Construal Level Theory, this study examines whether the effect of information sender (peer vs top management communication) on employees' energy‐saving behavioural intentions ...
Franziska Brack
wiley   +1 more source