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A Comprehensive Survey on Federated Learning Applications in Computational Mental Healthcare

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Computer Modeling in Engineering & Sciences 2025年第1期142卷 49-90页

作者： Vajratiya Vajrobol Geetika Jain Saxena Amit Pundir Sanjeev Singh Akshat Gaurav Savi Bansal Razaz Waheeb Attar Mosiur Rahman Brij B.Gupta Institute of Informatics and Communication University of DelhiDelhi110021India Maharaja Agrasen College University of DelhiDelhi110096India Computer Engineering Ronin InstituteMontclairNJ 07043USA Department of Research and Innovation Insights2TechinfoJaipur302001India University centre for Research and Development(UCRD) Chandigarh UniversityChandigarh140413India Management Department College of Business AdministrationPrincess Nourah bint Abdulrahman UniversityRiyadh11671Saudi Arabia CCRI&Department of Computer Science and information Engineering Asia UniversityTaichung413Taiwan Symbiosis centre for information Technology(SCIT) Symbiosis International UniversityPune411057India Center for Interdisciplinary Research University of Petroleum and Energy Studies(UPES)Dehradun248007India

Mental health is a significant issue worldwide,and the utilization of technology to assist mental health has seen a growing *** aims to alleviate the workload on healthcare professionals and aid *** applications have been developed to support the challenges in intelligent healthcare ***,because mental health data is sensitive,privacy concerns have *** learning has gotten some *** research reviews the studies on federated learning and mental health related to solving the issue of intelligent healthcare *** explores various dimensions of federated learning in mental health,such as datasets(their types and sources),applications categorized based on mental health symptoms,federated mental health frameworks,federated machine learning,federated deep learning,and the benefits of federated learning in mental health *** research conducts surveys to evaluate the current state of mental health applications,mainly focusing on the role of Federated Learning(FL)and related privacy and data security *** survey provides valuable insights into how these applications are emerging and evolving,specifically emphasizing FL’s impact.

关键词： Depression emotional recognition intelligent healthcare systems mental health federated learning stress detection sleep behaviour

Superior performance for lithium storage from an integrated composite anode consisting of SiO-based active material and current collector

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Frontiers of materials Science 2020年第3期14卷 243-254页

作者： Junqiang Hua Hailiang Chu Ying Zhu Tingting Fang Shujun Qiu Yongjin Zou Cuili Xiang Kexiang Zhang Bin Li Huanzhi Zhang Fen Xu Lixian Sun Guangxi Key Laboratory of information materials Guangxi Collaborative Innovation Centre of Structure and Property for New Energy Materialsand School of Materials Science and EngineeringGuilin University of Electronic TechnologyGuilin541004China

Silicon-based material is considered to be one of the most promising anodes for the next-generation lithium-ion batteries(LIBs)due to its rich sources,nontoxicity,low cost and high theoretical specific ***,it cannot maintain a stable electrode structure during repeated charge/discharge cycles,and therefore long cycling life is difficult to be *** address this problem,herein a simple and efficient method is developed for the fabrication of an integrated composite anode consisting of SiO-based active material and current collector,which exhibits a core-shell structure with nitrogen-doped carbon coating on SiO/P *** binder and conductive agent,the volume expansion of SiO active material in the integrated composite anode is suppressed to prevent its *** a current density of 500 mA·g−1,this integrated composite anode exhibits a reversible specific capacity of 458 mA·h·g−1 after 200 ***,superior rate performance and cycling stability are also *** work illustrates a potential method for the fabrication of integrated composite anodes with superior electrochemical properties for high-performance LIBs.

关键词： lithium-ion battery silicon monoxide red phosphorus rate performance integrated composite anode

Photoresponsive characteristics of thin film transistors with perovskite quantum dots embedded amorphous InGaZnO channels

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Chinese Physics B 2020年第7期29卷 588-595页

作者： Mei-Na Zhang Yan Shao Xiao-Lin Wang Xiaohan Wu Wen-Jun Liu Shi-Jin Ding State Key Laboratory of ASIC and System School of MicroelectronicsFudan UniversityShanghai 200433China Center for information photonics and energy materials Shenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhen 518055China

Photodetectors based on amorphous InGaZnO(a-IGZO)thin film transistor(TFT)and halide perovskites have attracted attention in recent ***,such a stack assembly of a halide perovskite layer/an a-IGZO channel,even with an organic semiconductor film inserted between them,easily has a very limited *** this article,we investigate photoresponsive characteristics of TFTs by using CsPbX3(X=Br or I)quantum dots(QDs)embedded into the a-IGZO channel,and attain a high photoresponsivity over 10^3A·W^-1,an excellent detectivity in the order of 10^16 Jones,and a light-to-dark current ratio up to 10^5 under visible *** should be mainly attributed to the improved transfer efficiency of photoelectrons from the QDs to the a-IGZO ***,spectrally selective photodetection is demonstrated by introducing halide perovskite QDs with different ***,this work provides a novel strategy of device structure optimization for significantly improving the photoresponsive characteristics of TFT photodetectors.

关键词： perovskite quantum dots a-IGZO thin-film transistor photoresponsive characteristics

Surface diffusion of Si, Ge and C adatoms on Si (001) substrate studied by the molecular dynamics simulation

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Chinese Physics B 2009年第10期18卷 4591-4597页

作者：陈智辉俞重远芦鹏飞刘玉敏 Key Laboratory of information photonics and Optical Communications Ministry of Education Institute of information photonics and Optical Communications Beijing University of Posts and Telecommunications

Depositions of Si, Ge and C atoms onto a preliminary Si （001） substrate at different temperatures are investigated by using the molecular dynamics method. The mechanism of atomic self-assembling occurring locally on the flat terraces between steps is suggested. Diffusion and arrangement patterns of adatoms at different temperatures are observed. At 900 K, the deposited atoms are more likely to form dimers in the perpendicular [110] direction due to the more favourable movement along the perpendicular [110] direction. C adatoms are more likely to break or reconstruct the dimers on the substrate surface and have larger diffusion distances than Ge and Si adatoms. Exchange between C adatoms and substrate atoms are obvious and the epitaxial thickness is small. Total potential energies of adatoms and substrate atoms involved in the simulation cell are computed. When a newly arrived adatom reaches the stable position, the potential energy of the system will decrease and the curves turns into a ladder-like shape. It is found that C adatoms can lead to more reduction of the system energy and the potential energy of the system will increase as temperature increases.

关键词： molecular dynamics simulations Tersoff potential surface diffusion potential energy

Tunable passively Q-switched ytterbium-doped fiber laser with mechanically exfoliated GaSe saturable absorber

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Chinese Optics Letters 2018年第2期16卷 93-97页

作者： H.Ahmad S.N.Aidit S.I.Ooi Z.C.Tiu photonics Research centre University of Malaya

A tunable passively Q-switched ytterbium-doped fiber laser using few-layer gallium selenide（GaSe） as a saturable absorber（SA） is *** few-layer GaSe SA,which is fabricated by the mechanical exfoliation method,is able to generate a Q-switched fiber laser that has a maximum repetition rate of 92.6 kHz and a minimum pulsed width of 2.3 μ*** highest pulse energy exhibited by the generated pulse is 18.8 nJ with a signal to noise ratio of ~40 *** tunability of the proposed laser covers from 1042 to 1082 nm,giving a tuning range of 40 nm.

关键词： Tunable passively Q-switched ytterbium-doped fiber laser with mechanically exfoliated GaSe saturable absorber SA

Passive Q-switching in an erbium-doped fiber laser using tungsten sulphoselenide as a saturable absorber

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Chinese Optics Letters 2018年第2期16卷 69-73页

作者： H.Ahmad Z.C.Tiu S.I.Ooi photonics Research centre University of Malaya

A highly stable Q-switched laser incorporating a mechanically exfoliated tungsten sulphoselenide （WSSe） thin sheet saturable absorber （SA） is proposed and demonstrated. The SA assembly, formed by sandwiching a thin WSSe sheet between two fiber ferrules within the erbium-doped fiber laser, is used to effectively modulate the laser cavity losses. The WSSe-based SA has a saturation intensity of ~0.006 MW∕cm^2 and a modulation depth of 7.8%, giving an optimum Q-switched laser output with a maximum repetition rate of 61.81 kHz and a minimum pulse width of 2.6 μs. The laser＇s highest output power of 0.45 mW and highest pulse energy of 7.31 nJ are achieved at the maximum pump power of 280.5 mW. The tunability of the cavity＇s output at the maximum pump power is analyzed with a C-band tunable bandpass filter, giving a broad tunable range of ~40 nm, from 1530 nm to 1570 nm. The output performance of the tunable Q-switched laser correlates well with the gain spectrum of erbium-doped fibers, with the shift in the gain profile as a result of the saturated SA.

关键词： Passive Q-switching in an erbium-doped fiber laser using tungsten sulphoselenide as a saturable absorber SA EDF

What do you see in photonic crystal fibers?

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Frontiers of Optoelectronics 2010年第1期3卷 2-8页

作者： Jonathan C.KNIGHT centre for photonics and Photonic materials and Department of Physics University of Bath

Photonic crystal fibers have been a source of colorful and intriguing optical images from the time they were first developed. The images are all the more captivating because they often transmit information about the basic optical properties of the fiber——sometimes in a visually spectacular way. Some of the more significant effects that are apparent in this way are demonstrated,along with an interpretation of their meaning.

关键词： optical fiber nonlinear fiber optics photonic crystal fibers supercontinuum

Yttrium‐and nitrogen‐doped NiCo phosphide nanosheets for high‐efficiency water electrolysis

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Carbon energy 2024年第8期6卷 214-231页

作者： Guangliang Chen Huiyang Xiang Yingchun Guo Jun Huang Wei Chen Zhuoyi Chen Tongtong Li Kostya(Ken)Ostrikov Department of materials Engineering Huzhou UniversityHuzhouChina School of materials Science and Engineering Zhejiang Sci‐Tech UniversityHangzhouChina School of Physics and Electronic information Gannan Normal UniversityGanzhouChina School of Chemistry and Physics Centre for Materials ScienceCentre for Clean Energy Technologies and PracticesCentre for Waste−Free WorldQueensland University of Technology(QUT)BrisbaneQueenslandAustralia

Engineering high‐performance and low‐cost bifunctional catalysts for H_(2)(hydrogen evolution reaction[HER])and O_(2)(oxygen evolution reaction[OER])evolution under industrial electrocatalytic conditions remains ***,for the first time,we use the stronger electronegativity of a rare‐Earth yttrium ion(Y^(3+))to induce in situ NiCo‐layered double‐hydroxide nanosheets from NiCo foam(NCF)treated by a dielectric barrier discharge plasma NCF(PNCF),and then obtain nitrogen‐doped YNiCo phosphide(N‐YNiCoP/PNCF)after the phosphating process using radiofrequency plasma in *** obtained NYNiCoP/PNCF has a large specific surface area,rich heterointerfaces,and an optimized electronic structure,inducing high electrocatalytic activity in HER(331mV vs.2000mA cm^(−2))and OER(464mV vs.2000mA cm^(−2))reactions in 1MKOH electrolyte.X‐ray absorption spectroscopy and density functional theory quantum chemistry calculations reveal that the coordination number of CoNi decreased with the incorporation of Y atoms,which induce much shorter bonds of Ni and Co ions and promote long‐term stability of N‐YNiCoP in HER and OER under the simulated industrial ***,the CoN‐YP_(5) heterointerface formed by plasma N‐doping is the active center for overall water *** work expands the applications of rare‐Earth elements in engineering bifunctional electrocatalysts and provides a new avenue for designing highperformance transition‐metal‐based catalysts in the renewable energy field.

关键词： overall water splitting plasma etching plasma N‐doping rare‐earth electrocatalyst yttrium incorporation

Borohydride Ammoniate Solid Electrolyte Design for All-Solid-State Mg Batteries

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energy & Environmental materials 2024年第1期7卷 100-106页

作者： Yuepeng Pang Zhengfang Nie Fen Xu Lixian Sun Junhe Yang Dalin Sun Fang Fang Shiyou Zheng School of materials and Chemistry University of Shanghai for Science and TechnologyShanghai 200093China Guangxi Key Laboratory of information materials&Guangxi Collaborative Innovation centre of Structure and Property for New energy and materials Guilin University of Electronic TechnologyGuilin 541004China Department of materials Science Fudan UniversityShanghai 200433China

Searching for novel solid electrolytes is of great importance and challenge for all-solid-state Mg *** this work,we develop an amorphous Mg borohydride ammoniate,Mg(BH_(4))_(2)·2NH_(3),as a solid Mg electrolyte that prepared by a NH_(3)redistribution between 3D framework-γ-Mg(BH_(4))_(2)and Mg(BH_(4))_(2)·6NH_(3).Amorphous Mg(BH_(4))_(2)·2NH_(3)exhibits a high Mg-ion conductivity of 5×10^(-4)S cm^(-1)at 75℃,which is attributed to the fast migration of abundant Mg vacancies according to the theoretical ***,amorphous Mg(BH_(4))_(2)·2NH_(3)shows an apparent electrochemical stability window of 0-1.4 V with the help of in-situ formed interphases,which can prevent further side reactions without hindering the Mg-ion *** on the above superiorities,amorphous Mg(BH_(4))_(2)·2NH_(3)enables the stable cycling of all-solid-state Mg cells,as the critical current density reaches 3.2 mA cm^(-2)for Mg symmetrical cells and the reversible specific capacity reaches 141 mAh g^(-1)with a coulombic efficiency of 91.7%(first cycle)for Mg||TiS_(2)cells.

关键词： all-solid-state Mg batteries amorphization Mg borohydride ammoniate Mg vacancy migration solid electrolyte