Results 61 to 70 of about 22,009 (301)

Hybrid Beamforming and Resource Allocation Designs for mmWave Multi-User Massive MIMO-OFDM Systems on Uplink

open access: yesIEEE Access, 2023
In this paper, we investigate hybrid beamforming and resource allocation design problems for uplink millimeter wave (mmWave) multi-user (MU) massive multiple-input-multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) systems.
Hsin-Hsiang Tseng   +2 more
doaj   +1 more source

Heterotropic regulation and negative homotropic cooperativity

open access: yesFEBS Open Bio, EarlyView.
We identified a structural module common to some proteins that couple negative cooperativity with heterotropic regulation, two features that rarely coexist. These proteins are ring‐like and present an ordered asymmetry whereby noncontacting subunits are symmetric, and their tertiary structure differs from that of contacting subunits.
Veronica Morea   +5 more
wiley   +1 more source

Channel width adaptation algorithm in multi-channel vehicular networks

open access: yesTongxin xuebao, 2010
Aiming at the low utilization of spectrum resource in vehicular networks,an algorithm base on semidefinite programming was presented,which could be utilized to channel width adaptation of multi-channel vehicular networks.Firstly,the algorithm need to ...
PENG Xin, LI Ren-fa, LIU Liang-jiao
doaj   +2 more sources

Distributed and Jamming-Resistant Channel Assignment and Routing for Multi-Hop Wireless Networks

open access: yesIEEE Access, 2018
We are becoming more reliant on multi-hop wireless networks (MWNs) for public safety, tactical/military, and last mile Internet communications. The architecture of an MWN can be flat, as in ad-hoc networks or hierarchical, as in mesh or sensor networks ...
Yalew Zelalem Jembre, Young-June Choi
doaj   +1 more source

Efficacy of Intermittent Theta‐Burst Stimulation for Prolonged Disorders of Consciousness: A Prospective, Randomized, Controlled Trial

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Emerging evidence suggests that low‐frequency neural oscillations are dynamically regulated by consciousness levels, with the recovery of low cortical activity potentially serving as a neurophysiological substrate for conscious emergence. Targeted enhancement of these low‐frequency rhythms in patients with disorders of consciousness
Chuan Xu   +10 more
wiley   +1 more source

Effectiveness of rTMS on Working Memory and Inhibitory Impairments in Patients With Post‐Stroke Executive Deficits

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Considerable efforts have been dedicated to developing effective treatments for post‐stroke executive impairment (PSEI), among which repetitive transcranial magnetic stimulation (rTMS) has shown great potential. This study aimed to investigate the therapeutic effects of high‐frequency rTMS on working memory (WM) and response ...
Mengting Lao   +6 more
wiley   +1 more source

Aggressive Fuzzy Distributed Dynamic Channel Assignment Algorithm [PDF]

open access: yes, 1995
Constraint based channel assignment schemes often rely on crisp evaluations of radio-interference-constraints to determine if an open channel is feasible for assignment. Such approach has been popularly adopted to formulate fixed channel assignment (FCA)
Chuang, Justin   +2 more
core  

An asynchronous distributed dynamic channel assignment scheme for dense WLANs [PDF]

open access: yes, 2008
Wireless local area networks (WLANs) have changed the way many of us communicate, work, play and live. Due to its popularity, dense deployments are becoming a norm in many cities around the world.
Ahmad, R.   +7 more
core   +1 more source

Choroid Plexus Enlargement and USPIO‐Based Inflammatory Feature in Cerebral Small Vessel Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective The choroid plexus (CP) is a key component of the blood–cerebrospinal fluid barrier (BCSFB), but its mechanism of action in cerebral small vessel disease (CSVD) remains unclear. This study investigated CP volume (CPV) alterations and their association with conventional imaging markers in CSVD and explored the underlying role of ...
Yongqiang Qu   +11 more
wiley   +1 more source

Distributed Measurement-Based Dynamic Channel Assignment for Personal Communications [PDF]

open access: yes, 1995
Conventional centralized and predication-based channel assignment methodology, whether fixed or dynamic, is not suitable for the emerging personal communications environments.
Chuang, Justin, Cheng, Matthew
core  

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