Results 41 to 50 of about 3,009 (150)

The emission of energetic electrons from the complex streamer corona adjacent to leader stepping

, 2019
We here propose a model to capture the complexity of the streamer corona adjacent to leader stepping and relate it to the production of energetic electrons serving as a source of X-rays and $\gamma$-rays, manifesting in terrestrial gamma-ray flashes ...
Babich, L., Chanrion, O., Köhn, C., Neubert, T., Nishikawa, K.   +4 more
core   +1 more source

Diversity-Multiplexing Gain Trade-off of a MIMO System with Relays [PDF]

, 2007
We find the diversity-multiplexing gain trade-off of a multiple-antenna (MIMO) system with M transmit antennas, N receive antennas, R relay nodes, and with independent Rayleigh fading, in which the relays apply a distributed space-time code.
Hassibi, Babak, Rao, Chaitanya
core   +1 more source

Analysis and Design Considerations of a Simplified LLC Three‐Port Resonant Converter

International Transactions on Electrical Energy Systems, Volume 2026, Issue 1, 2026.
The growing demand for photovoltaic (PV) systems with integrated energy storage poses challenges for power conditioning, often requiring multiple converters that increase cost, complexity, and losses. Multiport resonant converters have emerged as an efficient alternative by integrating PV modules, energy storage systems (ESSs), and a DC bus within a ...
Leonardo Guerrero-Uribe, Mario Ponce-Silva, Claudia Cortés-García, Alfredo González-Ortega, Luisana Claudio-Pachecano, Ricardo E. Lozoya-Ponce, Davut Ertekin   +6 more
wiley   +1 more source

Physics-defined HMM model for Reusable LPRE Bearing Remaining Useful Life Estimation

IFAC-PapersOnLine
Vincent SIRCOULOMB, Ghaleb HOBLOS
exaly   +2 more sources

Event‐Based Spatiotemporal Disentangled Aggregation for Image Reconstruction

International Journal of Intelligent Systems, Volume 2026, Issue 1, 2026.
The dynamic characteristics of event cameras demonstrate unique advantages in extreme environments; however, their inherent spatiotemporal asynchrony and noise sensitivity instead become serious drawbacks during extreme image reconstruction of coal mine substations.
Yanwei Wang, Chubin Peng, Zhenhui Min, Qingju Tang, Floriano Cuccureddu   +4 more
wiley   +1 more source

Estimation for Partial Functional Multiplicative Regression Model

Mathematics
Functional data such as curves, shapes, and manifolds have become more and more common with modern technological advancements. The multiplicative regression model is well suited for analyzing data with positive responses.
Xiaojing Liu, Ping Yu, Jianhong Shi
doaj   +1 more source

Large, Uni-directional Actuation in Dielectric Elastomers Achieved By Fiber Stiffening [PDF]

, 2012
Cylindrical actuators are made with dielectric elastomer sheets stiffened with fibers in the hoop direction. When a voltage is applied through the thickness of the sheets, large actuation strains are achievable in the axial direction, with or without pre-
David R. Clarke, Jian Zhu, Jiangshui Huang, Tongqing Lu, Zhigang Suo   +4 more
core   +1 more source

Exploring Participant‐Generated Examples of Social Change: A Two‐Stage, Mixed Methods, Delphi Study

Journal of Community Psychology, Volume 53, Issue 5, July 2025.
ABSTRACT Many of the critical challenges facing our world, especially concerning the climate and ecological emergencies, require social change. Community psychology has a longstanding relationship with social change, but our focus on it, frameworks around it, and ability to bring it about varies.
Miles Thompson, Ben Rosser, Eleanor Stone, Holly Parker, Eleanor Harrison‐Wolff   +4 more
wiley   +1 more source

A Soft Wearable Robot with an Adjustable Twisted String Actuator and a Two‐Stage Transmission Mechanism for Manual Handling Tasks

Advanced Intelligent Systems, Volume 7, Issue 6, June 2025.
This article proposes a soft wearable robot (WeaRo) to assist workers while executing manual handling tasks. With its innovative design, the WeaRo effectively assists multiple body parts during manual handling tasks while using a single motor. Furthermore, the components of the WeaRo are assembled onto a fabric‐based suit, ensuring high performance and
Dongun Lee, Sinyoung Lee, Donghyun Lee, Dongjun Shin   +3 more
wiley   +1 more source

The Maya Are a People of Movement: Reconstructing Shifts in Maya Mobility From Oxygen Isotopes Across Three Millenia at Santa Rita Corozal (Chactemal), Northern Belize

American Journal of Biological Anthropology, Volume 186, Issue 3, March 2025.
ABSTRACT Objectives Decades of archaeological and bioarchaeological research have demonstrated that ancient Maya cities underwent dynamic changes over time, including shifts in sociopolitical organization as well as their cultural and economic ties to other areas of Mesoamerica.
Angelina J. Locker, Diane Z. Chase, Arlen F. Chase, Adrian S. Z. Chase, Adela Pederson Vallejos, Genara Cano, Roy Rodriguez, To'one Masehualoon NGO, Melissa Badillo, Lilian J. Baker, Tiffiny A. Tung, Rick W. A. Smith   +11 more
wiley   +1 more source