A5061720505- Satellite Communication Systems
- Functional Brain Connectivity Studies
- Advanced Wireless Communication Techniques
- Wireless Communication Networks Research
- Opportunistic and Delay-Tolerant Networks
- Advanced Neuroimaging Techniques and Applications
- Neural dynamics and brain function
- Blind Source Separation Techniques
- Advanced Wireless Network Optimization
- GNSS positioning and interference
- IoT Networks and Protocols
- Spacecraft Design and Technology
- Error Correcting Code Techniques
- Inertial Sensor and Navigation
- Antenna Design and Optimization
- Genetics and Neurodevelopmental Disorders
- Geophysics and Gravity Measurements
- Mental Health Research Topics
- Distributed systems and fault tolerance
- Power Line Communications and Noise
- Autism Spectrum Disorder Research
- Optical Wireless Communication Technologies
- Radio Astronomy Observations and Technology
- stochastic dynamics and bifurcation
- Space Satellite Systems and Control
Shanghai Electric (China)
2025
Tsinghua University
2015-2024
National Engineering Research Center for Information Technology in Agriculture
2019-2024
Center for Excellence in Brain Science and Intelligence Technology
2017-2024
Chinese Academy of Sciences
2015-2024
Hangzhou First People's Hospital
2023
Westlake University
2023
UNSW Sydney
2023
University of Chinese Academy of Sciences
2019-2022
Shandong Institute of Automation
2020
Abstract Alzheimer’s disease (AD) patients and those with high-risk mild cognitive impairment are increasingly considered to have dysfunction syndromes. Large-scale network studies based on neuroimaging techniques may provide additional insight into AD pathophysiology. The aim of the present study is evaluate impaired functional connectivity progression. For this purpose, we explored altered connectivities previously well-defined brain areas that comprise five key systems [the default mode...
Mega-constellations have the potential for providing 6G Internet owing to unique advantage of global coverage. However, current satellite technologies are not omnipotent. There still many challenging problems that need be solved mega-constellations support 6G, e.g., efficient resource allocation, gratifying mobility management, and large-scale full-time TT&C (tracking, telemetry, command). This paper starts with a novel definition LEO brief review regarding typical mega-constellations,...
Data processing toolboxes for resting-state functional MRI (rs-fMRI) have provided us with a variety of functions and user friendly graphic interfaces (GUIs). However, many only cover certain range functions, use exclusively designed GUIs. To facilitate data alleviate the burden manually drawing GUIs, we developed versatile extendable MATLAB-based toolbox, BRANT (BRAinNetome fmri Toolkit), wide rs-fMRI code-generated During implementation, also empowered toolbox parallel computing...
Abstract Type 2 diabetes mellitus (T2DM) is associated with cognitive impairment. We investigated whether alterations of intranetwork and internetwork functional connectivity T2DM progression exist, by using resting-state MRI. MRI data were analysed from 19 patients normal cognition (DMCN) impairment (DMCI), healthy controls (HC). Functional among 36 previously well-defined brain regions which consisted 5 network (RSN) systems [default mode (DMN), dorsal attention (DAN), control (CON),...
Alzheimer's disease (AD) is associated with abnormal resting-state network (RSN) architecture of the default mode (DMN), dorsal attention (DAN), executive control (CON), salience (SAL), and sensory-motor (SMN). However, little known about t he disrupted intra- inter-network in mild cognitive impairment (MCI). Here, we employed a priori defined regions interest to investigate functional connectivity profiles these RSNs longitudinal participants, including normal controls (n = 23),...
This paper investigates the dynamic effects of reentry plasma sheath on electromagnetic wave propagation from viewpoint communication. Both spatial turbulence and temporal variation electron density are included in our model, transmission matrix method is employed to investigate interactions between wave. The simulation results indicated that because nonlinear property plasma, amplitude caused by has a lognormal distribution, while phase fluctuation Rayleigh distributed. Moreover, with...
Psychiatric disorders commonly comprise comorbid symptoms, such as autism spectrum disorder (ASD), obsessive-compulsive (OCD), and attention deficit hyperactivity (ADHD), raising controversies over accurate diagnosis overlap of their neural underpinnings. The authors used noninvasive neuroimaging in humans nonhuman primates to identify markers associated with DSM-5 diagnoses quantitative measures symptom severity.Resting-state functional connectivity data obtained from both wild-type...
The satellite tracking, telemetry, and command system, or TT&C, is utilized to transmit the telemetry telecommand data, as well determine orbit. It lifeline of a satellite, thus its safety reliability are fundamental importance satellite. After years development, traditional TT&C technologies relatively mature, while there still many open problems be solved for long distance deep space explorers mega-constellation. In this article, we start with brief review regarding evolution system...
Network slicing is one the key features of software-defined networks (SDNs) and can be used in next-generation communication networks. Admission control network slices basis providing heterogeneous quality-of-service performance guarantee maximizing optimization objectives operator. Various admission mechanisms have been proposed literature, including those based on traffic forecasting. However, recurrent neural network-based probabilistic forecasting models not given thorough consideration...
Satellite-terrestrial integrated networks have been proposed as a promising solution to provide global seamless coverage in next-generation communication networks. To enable the integration of satellite and terrestrial networks, network simulation is fundamental economically efficient step compared high cost field trial real-world system deployment. Simulation challenges arise with fast growth LEO mega-constellations, including frequent re-connection handover, long transmission delay,...
Effects on the communication signals caused by time-varying plasma sheath surrounding hypersonic vehicles are investigated.Using computational fluid dynamics (CFD) technique, Demetriades's turbulence model and finite-difference time-domain (FDTD) algorithm, amplitude variation phase fluctuation induced electron density obtained, their statistical properties analyzed characterized.Furthermore, a finite-state Markov channel (FSMC) is proposed, to represent dynamical effects electromagnetic...
Objectives: Although it is widely observed that chronic insomnia disorder (CID) associated with cognitive impairment, the neurobiological mechanisms underlying this remain unclear. Prior neuroimaging studies have confirmed a close correlation exists between functional connectivity and impairment. Based on observation, in study we used resting-state magnetic resonance imaging (rs-fMRI) to relationship whole brain function CID. Methods: We included 39 patients CID 28 age-, gender-,...
MECP2 gain-of-function and loss-of-function in genetically engineered monkeys recapitulates typical phenotypes patients with autism, yet where mutation affects the monkey brain whether/how it relates to autism pathology remain unknown. Here we report a combination of gene–circuit–behavior analyses including coexpression network, locomotive cognitive behaviors, EEG fMRI findings 5 overexpressed ( Macaca fascicularis ; 3 females) 20 wild-type 11 females). Whole-genome expression analysis...
The rapid expansion of satellite mega-constellations has highlighted the potential edge computing as a promising solution for mobile multimedia communications. While reinforcement learning been explored in communication systems, significant challenges remain, including high latency and limited resources. This study addresses these by focusing on joint optimization communication, computing, caching resources to support applications. A mixed-integer nonlinear programming (MINLP) problem is...
Spinocerebellar ataxia type 3 (SCA3) is the most commonly occurring of autosomal dominant spinocerebellar ataxia. The present study aims to investigate progressive changes in white matter (WM) fiber asymptomatic and symptomatic patients with SCA3.A total 62 participants were included this study. Among them, 16 mutation carriers (pre-SCA3), 22 SCA3 clinical symptoms, 24 normal controls (NC). Group comparison tract-based spatial statistics was performed identify microstructural abnormalities...
For optical scattering communication, a closed-form expression of channel impulse response (CIR) is favorable for further system design and capacity analysis. Combining the mean value theorem integrals L'Hôpital's rule, exact non-line-of-sight (NLOS) single-scatter propagation model simplified to CIR laser source with narrow beam. Based on this model, by joint geometrical empirical approaches, piecewise presented under certain NLOS geometries. Through numerical results various geometries,...
The radio blackout problem stands as one long obstacle for hypersonic flight and planetary atmosphere reentry.Rather than previous physical mitigation methods aiming to reduce the plasma electron density, this paper proposes a novel method which attempts communicate at carrier frequency much higher cutoff frequency.To overcome highly dynamic channel characteristics, reflected wave is used online estimate instantaneous states enable adaptive transmission.According predicted states, sheath...
The rapid rise in Type 2 diabetes mellitus (T2DM) among young adults makes it important to understand structural changes the brain at a presenile stage. This study examined global and regional atrophy middle-aged with T2DM, focus on those without clinical evidence of microvascular complications.The recruited 66 dementia-free subjects (40 26 healthy volunteers [HVs]). Patients were grouped according presence (T2DM-C; n = 20) or absence (T2DM-NC; diabetic complications. Global volume...
The purpose of our study was to investigate whether the whole-brain functional connectivity pattern exhibits disease severity-related alterations in patients with Alzheimer’s (AD) and mild cognitive impairment (MCI). Resting-state magnetic resonance imaging data were acquired 27 MCI subjects, 35 AD patients, age- gender-matched subjects normal cognition (NC). Interregional assessed based on a predefined template which parcellated brain into 90 regions. Altered patterns identified via...
In addition to large path loss, non-line-of-sight (NLOS) optical wireless scattering communication suffers time dispersion due the multipath nature of NLOS channel. this paper, channel pulse delay spreads over broad spectra [ {0.2,1.6} μm in polydisperse aerosols are investigated based on Monte Carlo ray-tracing method. It is shown that spread first rises and then falls as wavelength increases from deep ultraviolet near-infrared spectrum. A comparison loss distributions performed, which...
Alzheimer's disease (AD) and mild cognitive impairment (MCI) have been associated with impaired communication among large-scale brain networks. Given nature that interconnected subnetworks are responsible for daily behavior than a single pair of functional connectivity, it is valid to use network-based statistic (NBS) method exploit the clustering structure connectivity alterations in AD/MCI. We explored abnormal network components using NBS based on resting-state magnetic resonance imaging...
Resolving trajectories of axonal pathways in the primate prefrontal cortex remains crucial to gain insights into higher-order processes cognition and emotion, which requires a comprehensive map projections linking demarcated subdivisions rest brain. Here, we report mesoscale excitatory projectome issued from ventrolateral (vlPFC) entire macaque brain by using viral-based genetic tracing tandem with high-throughput serial two-photon tomography, demonstrated prominent monosynaptic other areas,...
In the upcoming 6G communication era, satellite Internet based on mega constellations will become an indispensable extension of terrestrial network. However, it is difficult for traditional ground-based and geostationary earth orbit (GEO)-based telemetry systems to satisfy requirements monitoring constellation. This paper designs networked system, where data transmitted through inter-satellite-links (ISL) low (LEO) medium (MEO) satellites. Furthermore, resource allocation problem system...