Results 151 to 160 of about 5,122 (298)

Experimental Investigation of Moisture Movement During Freeze–Thaw Cycles and Its Effect on Physical Rock Weathering in Low‐Porosity Alpine Limestone

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT The progressive weakening of alpine rockwalls through subcritical cracking, driven by repeated low‐magnitude stress processes, plays a key role in alpine rock weathering. Laboratory studies using acoustic emission (AE) monitoring have shown that thermal stresses from freeze–thaw cycling induce crack propagation, with recent work highlighting ...
Andrew Mitchell, Oliver Sass
wiley   +1 more source

Convertisseurs modulaires multiniveaux pour le transport d'énergie électrique en courant continu haute tension

, 2014
Les travaux présentés dans ce mémoire ont été réalisés dans le cadre d’une collaboration entre le LAboratoire PLAsma et Conversion d’Énergie (LAPLACE), Université de Toulouse, et la Seconde Université de Naples (SUN).
Serbia, Nicola
core  

An Optimized Fault-Ride-Through Control Strategy of Hybrid MMC with Fewer FBSMs

The modular multilevel converter (MMC) has many advantages of low switching losses, good harmonic performance and high modularity structure in state-of-the-art HVDC applications.
Yuebin Zhou, Junyi Sheng, Jinyu Wang, Wanyu Cao, Yue Chen, Runtian Ding, Wujun Wang, Chenglin Ren   +7 more
core   +1 more source

The Age and Origin of Block Deposits in the Victorian Alps, Australia

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT Large periglacial block deposits are found in the mountains of southeastern Australia. Despite their widespread distribution, their mode of formation and age are poorly understood. These landforms hold considerable potential to shed light on the nature of cooling during glacial periods. In this paper we present a new study of block deposits in
Timothy T. Barrows, Michelle S. Worland, Julian Murton, Stephanie C. Mills, L. Keith Fifield   +4 more
wiley   +1 more source

Fault Ride-Through Optimization Scheme for Hybrid AC/DC Transmission Systems on the Same Tower. [PDF]

Sensors (Basel)
Chu X, Liu Q, Fu L, Yu S, Wang W.
europepmc   +1 more source

Multiproxy Chronologies of the Hurd Rock Glacier (Livingston Island, South Shetland Islands, Maritime Antarctica): Between the Late‐Stage Stabilization and Flow Deceleration

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT The Hurd Rock Glacier, located on Livingston Island (South Shetland Islands archipelago, Maritime Antarctica), is a tongue‐shaped feature composed of angular boulders, displaying transverse ridges and furrows, and featuring lobate structures, which are more prominently developed in its frontal sector.
Rosana Menéndez‐Duarte, Jesús Ruiz‐Fernández, Laura Rodríguez‐Rodríguez, José M. Fernández‐Fernández, Vincent Rinterknecht, ASTER Team   +5 more
wiley   +1 more source

Enhancing microgrid resilience through integrated grid-forming and grid-following inverter strategies for solar PV battery control and fault ride-through. [PDF]

Sci Rep
Hossain MI, Anonto HZ, Shufian A, Pathik BB, Mannan MA, Rashid A, Biswas P.   +6 more
europepmc   +1 more source

Sentipensar [Feel‐Thinking] Cultivates Collective Scientific Sensemaking and Worldbuilding Within and Beyond Ecological Despair

Science Education, EarlyView.
ABSTRACT Educating youth about environmental and climate justice is crucial in realizing a sustainable and flourishing future. Yet this can be challenging given the intense eco‐emotions youth experience and express while learning about these consequential realities and their implications.
Kelsie Fowler
wiley   +1 more source

A new approach for improving dynamic fault ride through capability of gridctied based wind turbines. [PDF]

Sci Rep
Dayo SA, Memon A, Memon ZA, Jumani TA, Abbas G, Othmen S, Yousef A, Wijaya AA.   +7 more
europepmc   +1 more source

Investor Heterogeneity, Sustainable Board Governance, and Corporate Social Responsibility Performance: Empirical Evidence From Europe

Sustainable Development, EarlyView.
ABSTRACT This study applies an agency‐theoretical lens to examine how investor heterogeneity, specifically institutional, foreign, and domestic ownership, influences corporate social responsibility (CSR) performance. Drawing on extensions of classical agency theory that account for heterogeneous shareholder preferences and principal‐principal conflicts,
Maximilian Focke
wiley   +1 more source