Results 61 to 70 of about 45,671 (180)

Cross‐scale interactions mediate local drivers of nonnative species richness

Ecography, EarlyView.
Many well‐supported hypotheses seek to explain drivers of nonnative species richness across spatial scales, but evidence for common patterns among regions and taxa remains inconclusive. This study investigates why consistent patterns are elusive by estimating and assessing cross‐scale interactions, wherein large‐scale factors contextualize patterns ...
Lily M. Thompson, William K. Annis, Stephen R. Midway, Julian D. Olden, Brandon K. Peoples   +4 more
wiley   +1 more source

Deep Learning Based Predictive Power Allocation for V2X Communication

IEEE Access, 2021
As an essential technology of the fifth generation communication (5G), Vehicle-to-Everything (V2X) has attracted wide attention lately. A well-designed power allocation scheme can decrease the interference among terminals to yield a significant ...
Jian Sang, Ting Zhou, Tianheng Xu, Yanliang Jin, Zhenghang Zhu   +4 more
doaj   +1 more source

Dig-CSI: A Distributed and Generative Model Assisted CSI Feedback Training Framework

IEEE Wireless Communications Letters
The advent of deep learning (DL)-based models has significantly advanced Channel State Information (CSI) feedback mechanisms in wireless communication systems. However, traditional approaches often suffer from high communication overhead and potential privacy risks due to the centralized nature of CSI data processing.
Zhilin Du, Zhenyu Liu, Haozhen Li, Shilong Fan, Xinyu Gu, Lin Zhang   +5 more
openaire   +2 more sources

ESG Performance and Credit Risk: Evidence From Chinese Manufacturing Companies

International Journal of Finance &Economics, EarlyView.
ABSTRACT This study investigates the effect of corporate environmental, social, and governance (ESG) performance on credit risk using a sample of manufacturing firms listed on China's Shanghai and Shenzhen A‐share markets from 2009 to 2021. Employing fixed effects, the generalised method of moments, and instrumental variable models, we find that ...
Yanan Wang, Xiao Zhang, Michal Wojewodzki, Yuxin Jian, Fadey AbiDaoud   +4 more
wiley   +1 more source

Vector Broadcast Channels: Optimality of Threshold Feedback Policies

, 2011
Beamforming techniques utilizing only partial channel state information (CSI) has gained popularity over other communication strategies requiring perfect CSI thanks to their lower feedback requirements.
Evans, Jamie, Inaltekin, Hazer, Samarasinghe, Tharaka   +2 more
core   +1 more source

Comparison of Auto‐Contouring Tools for Delineation of Normal Organs at Risk in Paediatric Patients Undergoing Radiotherapy

Journal of Medical Radiation Sciences, EarlyView.
Contouring organs at risk (OARs) manually in paediatric patients undergoing cranial‐spinal radiation therapy (CSI) is a time‐consuming, labour‐intensive task. This study aims to assess the accuracy and clinical acceptability of auto‐contours produced by the Siemens DirectORGANS auto‐contouring software on paediatric patients receiving CSI treatment ...
Isabel Cant, Jonathan Sykes, Yolanda Surjan, Rachael Beldham‐Collins, Laura Murphy, John Fernandez, Alison Salkeld   +6 more
wiley   +1 more source

On Optimizing Feedback Interval for Temporally Correlated MIMO Channels With Transmit Beamforming And Finite-Rate Feedback

, 2018
A receiver with perfect channel state information (CSI) in a point-to-point multiple-input multiple-output (MIMO) channel can compute the transmit beamforming vector that maximizes the transmission rate.
Mamat, Kritsada, Santipach, Wiroonsak
core   +1 more source

Intelligent CSI feedback method for fast time-varying FDD massive MIMO system

Tongxin xuebao, 2021
In the frequency division duplexing (FDD) massive multiple-input multiple-output (MIMO) system, the channel state information (CSI) matrix existed noise caused by the wireless channel interference and the time correlation caused by Doppler shift.Because ...
Yong LIAO, Shuai WANG, Ning SUN
doaj   +2 more sources

Adversarial attack on DL-based massive MIMO CSI feedback

Journal of Communications and Networks, 2020
With the increasing application of deep learning (DL) algorithms in wireless communications, the physical layer faces new challenges caused by adversarial attack. Such attack has significantly affected the neural network in computer vision. We chose DL-based analog channel state information (CSI) to show the effect of adversarial attack on DL-based ...
Liu, Qing, Guo, Jiajia, Wen, Chao-Kai, Jin, Shi   +3 more
openaire   +2 more sources

Omics Insights Into the Effects of Highbush Blueberry and Cranberry Crop Agroecosystems on Honey Bee Health and Physiology

PROTEOMICS, EarlyView.
ABSTRACT Honey bees (Apis mellifera) are vital pollinators in fruit‐producing agroecosystems like highbush blueberry (HBB) and cranberry (CRA). However, their health is threatened by multiple interacting stressors, including pesticides, pathogens, and nutritional changes.
Huan Zhong, Yuming Shi, Aleksandra Kozlova, Renata Moravcova, Jason C. Rogalski, Aidan Jamieson, Lance Lansing, Kyung‐Mee Moon, Xiaojing Yuan, Amanda S. Gregoris, Heather Higo, Julia Common, Ida M. Conflitti, Mateus Pepinelli, Lan Tran, Morgan Cunningham, Hosna Jabbari, Syed Abbas Bukhari, Sarah K. French, Rodrigo Ortega Polo, Shelley E. Hoover, Stephen F. Pernal, Pierre Giovenazzo, M. Marta Guarna, Amro Zayed, Leonard J. Foster   +25 more
wiley   +1 more source