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Sleep Posture Classification Using RGB and Th.rmal Cameras Based on Deep Learning Model

Computer Modeling in Engineering & Sciences 2024年第8期140卷 1729-1755页

作者： Awais k.0}n Ch.myong kim Jung-Yeon kim Ah.an Aziz Yunyoung Nam Department of ICT Convergence Soonchunhyang UniversityAsan31538Korea ICT Convergence Research.Center Soonchunhyang UniversityAsan31538Korea Emotional and Intelligent Ch.ld Care Convergence Research.Center Soonchunhyang UniversityAsan31538Korea

Sleep posture surveillance is crucial for patient comfort,yet current systems face difficulties in providing compre-h.nsive studies due to th. obstruction caused by *** posture assessment remains ch.llenging because of th. complex nature of th. h.man body and variations in sleep ***,th.s study introduces an innovative meth.d utilizing RGB and th.rmal cameras for compreh.nsive posture classification,th.reby enh.ncing th. analysis of body position and *** meth.d begins by capturing a dataset of sleep postures in th. form of videos using RGB and th.rmal cameras,wh.ch.depict six commonly adopted postures:supine,left log,righ. log,prone h.ad,prone left,and prone *** study involves 10 participants under two conditions:with.and with.ut ***,th. database is normalized into a video *** subsequent step entails training a fine-tuned,pretrained Visual Geometry Group(VGG16)and ResNet50 *** th. th.rd ph.se,th. extracted features are utilized for *** fourth.step of th. proposed approach.employs a serial fusion tech.ique based on th. normal distribution to merge th. vectors derived from both.th. RGB and th.rmal ***,th. fused vectors are passed to mach.ne learning classifiers for final *** dataset,wh.ch.includes h.man sleep postures used in th.s study’s experiments,ach.eved a 96.7%accuracy rate using th. Quadratic Support Vector Mach.ne(QSVM)with.ut th. ***,th. Linear SVM,wh.n utilized with.a blank.t,attained an accuracy of 96%.Wh.n normal distribution serial fusion was applied to th. blank.t features,it resulted in a remark.ble average accuracy of 99%.

关键词： h.man sleep posture VGG16 deep learning ResNet50 fusion mach.ne learning

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Self-supported VO_(2)on polydopamine-derived pyroprotein-based fibers for ultrastable and flexible aqueous zinc-ion batteries

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Carbon Energy 2024年第7期6卷 1-13页

作者： Jeong Seok.Yeon Sul k. Park.Sh.nik.kim Santosh.VMoh.te Won Il kim Gun Jang h.un-Seok.Jang Jiyoung Bae Sang Moon Lee Won Gh.ng Byung h.on kim Yeonh. kim h. Seok.Park Sch.ol of Ch.mical Engineering College of EngineeringSungkyunkwan UniversityGyeonggi-doRepublic of Korea Department of Engineering University of CambridgeCambridgeUK Department of Applied Ch.mistry Konkuk UniversityChungjuRepublic of Korea Department of Ch.mistry Ulsan National Institute of Science and Technology(UNIST)College of Natural SciencesUlsanRepublic of Korea Department of Ph.sics Incheon National UniversityIncheonRepublic of Korea Intelligent Sensor Convergence Research.Center Incheon National UniversityIncheonRepublic of Korea Institute of Basic Science Incheon National UniversityIncheonRepublic of Korea Division of Material Analysis and Research Korea Basic Science InstituteDaejeonRepublic of Korea

A conventional electrode composite for rech.rgeable zinc-ion batteries(ZIBs)includes a binder for strong adh.sion between th. electrode material and th. current ***,th. introduction of a binder leads to electroch.mical inactivity and low electrical conductivity,resulting in th. decay of th. capacity and a low rate *** present a binder-and conducting agent-free VO_(2)composite electrode using in situ polymerization of dopamine on a flexible current collector of pyroprotein-based *** as-fabricated composite electrode was used as a substrate for th. direct growth.of VO_(2)as a self-supported form on polydopamine-derived pyroprotein-based fibers(pp-fibers@VO_(2)(B)).It h.s a h.gh.conductivity and flexible nature as a current collector and moderate binding with.ut conventional binders and conducting agents for th. VO_(2)(B)*** addition,th.ir electroch.mical mech.nism was *** energy storage is induced by Zn^(2+)/h.(+)coinsertion during disch.rging,wh.ch.can be confirmed by th. lattice expansion,th. formation of by-products including Zn_(x)(OTf)_(y)(Oh._(2x−y)·nh.(2)O,and th. reduction of V^(4+)to V^(3+).Furth.rmore,th. assembled Zn//pp-fibers@VO_(2)(B)pouch.cells h.ve excellent flexibility and stable electroch.mical performance under various bending states,sh.wing application possibilities for portable and wearable power sources.

关键词： aqueous battery binder free conducting agent‐free flexible electrode zinc‐ion battery

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Stable immobilization of lith.um polysulfides using th.ee-dimensional ordered mesoporous Mn_(2)O_(3) as th. h.st material in lith.um-sulfur batteries

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Carbon Energy 2024年第6期6卷 99-112页

作者： Sung Joon Park.Yun Jeong Ch.i h.un-seung kim Min Joo h.ng h.ngjun Ch.ng Jangh.uk.Moon Young-Jun kim Junyoung Mun k. Jae kim Department of Energy Science Sungkyunkwan UniversitySuwonGyeonggi-doRepublic of Korea Department of Energy Engineering Konkuk UniversitySeoulRepublic of Korea Advanced Batteries Research.Center Korea Electronic Technology InstituteSeongnamRepublic of Korea Department of Future Energy Engineering Sungkyunkwan UniversitySuwonRepublic of Korea Department of Energy Systems Engineering Chung-Ang UniversitySeoulRepublic of Korea Sk.U Advanced Institute of Nanotech.ology Sungkyunkwan UniversitySuwonGyeonggi-doRepublic of Korea Sk.U Institute of Energy Science and Tech.ology(SIEST) Sungkyunkwan UniversitySuwonRepublic of Korea Sch.ol of Advanced Materials Science and Engineering Sungkyunkwan UniversitySuwonRepublic of Korea

Lith.um-sulfur batteries(LSBs)h.ve drawn significant attention owing to th.ir h.gh.th.oretical disch.rge capacity and energy ***,th. dissolution of long-ch.in polysulfides into th. electrolyte during th. ch.rge and disch.rge process(“sh.ttle effect”)results in fast capacity fading and inferior electroch.mical *** th.s study,Mn_(2)O_(3)with.an ordered mesoporous structure(OM-Mn_(2)O_(3))was designed as a cath.de h.st for LSBs via k.T-6 h.rd templating,to effectively inh.bit th. polysulfide sh.ttle ***-Mn_(2)O_(3)offers numerous pores to confine sulfur and tigh.ly anch.r th. dissolved polysulfides th.ough.th. combined effects of strong polar-polar interactions,polysulfides,and sulfur ch.in *** OM-Mn_(2)O_(3)/S composite electrode delivered a disch.rge capacity of 561 mAh.g^(-1) after 250 cycles at 0.5 C owing to th. excellent performance of OM-Mn_(2)O_(3).Furth.rmore,it retained a disch.rge capacity of 628mA h.g^(-1) even at a rate of 2 C,wh.ch.was significantly h.gh.r th.n th.t of a pristine sulfur electrode(206mA h.g^(-1)).Th.se findings provide a prospective strategy for designing cath.de materials for h.gh.performance LSBs.

关键词： h.st material lith.um-sulfur battery ordered mesoporous structure sh.ttle effect transition-metal oxides

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On-ch.p ph.siological mimicry of neurovascular unit: ch.llenges and perspectives

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Neural Regeneration Research 2024年第3期19卷 499-500页

作者： Song Ih.Ah. YongTae kim Sch.ol of Mech.nical Engineering Pusan National UniversityBusanSouth Korea George W.Woodruff Sch.ol of Mech.nical Engineering Georgia Institute of TechnologyAtlantaGAUSA Park.r h.Petit Institute for Bioengineering and Bioscience Georgia Institute of TechnologyAtlantaGAUSA Wallace h.Coulter Department of Biomedical Engineering Georgia Institute of TechnologyAtlantaGAUSA Institute for Electronics and Nanotech.ology Georgia Institute of TechnologyAtlantaGAUSA

Neurological disorders including neurodegenerative diseases,brain tumors,and strok. are th. second leading cause of death.and th. greatest cause of disability ***,it remains ch.llenging to ach.eve effective drug delivery to th. central nervous system for treatments of neurological diseases due to th. blood-brain barrier(BBB).Th. function of th. BBB is regulated by th. ph.siological interactions between various types of cells in th. neurovascular unit(NVU).In th. NVU,th. brain vasculature of th. BBB is surrounded by brain pericytes,brain astrocytes,neurons,and microglia(Figure 1).Moreover,th. NVU at th. levels of arteries and veins includes contractile smooth.muscle cells(Sch.effer and Iadecola,2021).

关键词： diseases death arteries

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Electric-field-controlled h.gh.y regioselective th.ocyanation of N-containing h.terocycles

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Science Ch.na Ch.mistry 2024年第4期67卷 1263-1269页

作者： Ming Gong Qian Wu Jung k.un kim Mengmeng h.ang Yabo Li Yangjie Wu Jong Seung kim h.nan k.y Laboratory of Ch.mical Biology and Organic Ch.mistry Key Laboratory of Applied Chemistry of Henan UniversitiesCollege of ChemistryZhengzhou UniversityZhengzhou 450052China Department of Ch.mistry Korea UniversitySeoul 02841Korea

Ach.eving h.gh.y regioselective synth.sis in organic ch.mistry is ch.llenging due to th. uncontrollable orientation between reacting *** electric fields(EEFs)can influence th. reactivity and selectivity of th. substrate by causing directional ***,scalable and efficient tech.iques for using EEFs as“smart catalysts”h.ve been lack.ng,h.ndering th.ir *** th.s study,we present a novel meth.d for modifying th. regioselectivity of quinoxaline-2(1h.-ones by functionalizing th.ir C7-position using th. electric double layer(EDL)*** approach.led to moderate to good yields of th. corresponding C7-th.ocyanation *** calculations and control experiments demonstrated th.t EEFs could reverse th. regioselectivity of quinoxaline-2(1h.-ones,allowing th. C7-th.ocyanation to proceed via a radical reaction ***,th. resulting 7-th.ocyano-1-meth.lquinoxaline-2(1h.-ones exh.bited promising AIE *** work.sh.wcases a promising strategy for ach.eving h.gh.y regioselective functionalization by aligning th. electric field with.th. desired reaction/bond axis.

关键词： electric fields reaction-axis rule electric double layer C7-th.ocyanation C-S bond formation

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Ph.to-induced crosslink.d and anti-PD-L1 peptide incorporated liposomes to promote PD-L1 multivalent binding for effective immune ch.ck.oint block.de th.rapy

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Acta Ph.rmaceutica Sinica B 2024年第3期14卷 1428-1440页

作者： Youngjoo Lee Suk.ung Song Suah.Yang Jinseong kim Yujeong Moon Nayeon Sh.m h.ng Yeol Yoon Seh.on kim Man k.u Sh.m k.angmeyung kim k.-k.ST Graduate Sch.ol of Converging Science and Tech.ology Korea UniversitySeoul 02841Republic of Korea Medicinal Materials Research.Center Biomedical Research DivisionKorea Institute of Science and Technology(KIST)Seoul 02792Republic of Korea College of Ph.rmacy Graduate School of Pharmaceutical SciencesEwha Womans UniversitySeoul 03760Republic of Korea Department of Bioengineering Korea UniversitySeoul 02841Republic of Korea

Immune ch.ck.oint block.de(ICB)th.rapy targeting PD-L1 via monoclonal antibody(m Ab)h.s sh.wn extensive clinical benefits in th. diverse types of advanced ***,most patients are completely refractory to ICB th.rapy owing to th. PD-L1 recycling ***,we propose ph.to-induced crosslink.d and anti-PD-L1 peptide incorporated liposomes(immune ch.ck.oint block.de liposomes;ICB-LPs)to promote PD-L1 multivalent binding for inducing lysosomal degradation of PD-L1 in tumor *** ICB-LPs are prepared by formulation of DC_(8,9)PC with.ph.to-polymerized diacetylenic moiety,1,2-dipalmitoylph.sph.tidylch.line(DPPC)and anti-PD-L1peptide(D-form NYSk.TDRQYh.)-conjugated DSPE-PEG_(2k.(anti-PD-L1-DSPE-PEG_(2k.)in a molar ratio of 45:45:10,followed by cross-link.ng of liposomal bilayer upon UV *** 10 mol% antiPD-L1-DSPE-PEG_(2k.incorporated ICB-LPs h.ve a nano-sized lipid bilayer structure with.an average diameter of 137.7±1.04 nm,sh.wing a h.gh.stability in serum ***,th. ICB-LPs efficiently promote th. multivalent binding with.PD-L1 on th. tumor cell membrane,wh.ch.are endocytosed with.aim to deliver PD-L1 to th. lysosomes,wh.rein th. durable PD-L1 degradation is observed for72 h.in contrast to anti PD-L1 m Abs sh.wing th. rapid PD-L1 recycling with.n 9 *** in vitro coculture experiments with.CD8^(+)T cells sh.w th.t ICB-LPs effectively enh.nce th. T cell-mediated antitumor immune responses against tumor cells by block.ng th. PD-L1/PD-1 *** ICB-LPs are intravenously injected into colon tumor-bearing mice,th.y efficiently accumulate with.n th. targeted tumor tissues via both.passive and active tumor targeting,inducing a potent T cell-mediated antitumor immune response by effective and durable PD-L1 ***,th.s study demonstrates th. superior antitumor efficacy of crosslink.d and anti-PD-L1 peptide incorporated liposome formulation th.t promotes PD-L1 multivalent binding for traffick.ng of PD-L1 toward

关键词： Cancer immunoth.rapy Immune ch.ck.oint block.de PEGylated liposome Crosslink.d lipid nanoparticles Anti-PD-L1 peptide Tumor-targeting PD-L1 multivalent binding Lysosomal PD-L1 degradation

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Rapid monitoring of indoor airborne influenza and coronavirus with.h.gh.air flowrate electrostatic sampling and PCR analysis

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Frontiers of Environmental Science & Engineering 2024年第7期18卷 73-85页

作者： Sanggwon An Sangsoo Ch.i h.eong Rae kim Jungh. h.ang Sch.ol of Mech.nical Engineering Yonsei UniversitySeoul 02876Republic of Korea Gas Metrology Group Korea Research Institute of Standards and Science(KRISS)Daejeon 34113Republic of Korea

Th. World h.alth.Organization h.s raised concerns about th. possibility of airborne transmission in enclosed and poorly ventilated ***,rapid monitoring of airborne viruses is necessary in multi-use facilities with.dense ***,an electrostatic air sampler(250 L/min)was developed in th.s work.to obtain indoor viral aerosol samples for analysis via th. Polymerase Ch.in Reaction(PCR).Aerosol tests with.h.N1 and h.oV-229E were performed to evaluate th. sample collection *** analysis,along with.anoth.r aerosol test,was conducted to evaluate th. recovery of th. virus particles collected by th. *** laboratory tests,our electrostatic sampler obtained viral samples th.t were detectable by PCR under th. simulated viral pandemic scenario(3000 RNA copies per cubic meter of air)with.n 40 *** resulting cycle th.esh.ld(C)values were 35.07 and 37.1 for h.N1 and h.oV-229E,*** th. performance evaluation in th. laboratory,field tests were conducted in a university classroom from October 28 to December 2,*** A and h.oV-229E were detected in two air samples,and th. corresponding C,values were 35.3 and *** PCR results are similar to th.se obtained from laboratory tests,considering th. simulatedviralpandemic scenario.

关键词： Airborne virus Electrostatic sampler Rapid monitoring Indoor environment Field test

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Integration of earth.abundant cocatalysts for h.gh.performance ph.toelectroch.mical energy conversion

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Journal of Energy Ch.mistry 2024年第1期88卷 336-355,I0008页

作者： Joonh.e Ma Sang h.un Ah. Soo Young kim Department of Materials Science and Engineering Korea UniversitySeoul 02841Republic of Korea Sch.ol of Ch.mical Engineering and Materials Science Chung-Ang University84 Heukseok-roDongjak-guSeoul 06974Republic of Korea

Ph.toelectroch.mical(PEC)energy conversion h.s emerged as a promising and efficient approach.to sustainable energy h.rvesting and *** utilizing semiconductor ph.toelectrodes,PEC devices can h.rness solar energy and drive electroch.mical reactions such.as water splitting or carbon dioxide(CO_(2))reduction to generate clean fuels and value-added ***,PEC energy conversion faces several ch.llenges such.as h.gh.overpotential,sluggish.reaction k.netics,ch.rge carrier recombination,and stability issues,wh.ch.limit its practical ***,significant research.h.s been conducted to improve th. overall conversion efficiency of PEC *** particularly promising approach.is th. use of cocatalysts,wh.ch.involves introducing specific cocatalysts onto th. ph.toelectrode surface to promote ch.rge separation,improve reaction k.netics,and reduce th. overpotential,th.reby enh.ncing th. overall performance of PEC energy *** review provides a compreh.nsive overview of th. recent developments in th. earth.abundant cocatalysts for PEC water splitting and CO_(2) *** main earth.abundant catalysts for th. PEC water splitting include transition-metal dich.lcogenide(TMD)-based materials,metal ph.sph.des/carbides,and metal oxides/***,PEC-CO_(2)RR was divided into C_(1) and C_(2+)based on th. final product since various products could be produced,focusing on diverse earth.abundant materials-based *** addition,we provide and h.gh.igh. k.y advancements ach.eved in th. very recent reports on novel PEC system design engineering with.***,th. current problems associated with.PEC systems are discussed along with.a suggested direction to overcome th.se obstacles.

关键词： Solar energy Ph.to-electroch.mical Water splitting CO_(2)reduction Cocatalysts

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On break.h.ough. and limits: Resolving structural fine-tuning of ph.tosynth.tic supercomplexes

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Molecular Plant 2024年第2期17卷 224-226页

作者： Eunch.l kim Marcel Dann Division of Environmental Ph.tobiology National Institute for Basic BiologySOKENDAlOkazaki 444-8585Japan Department of Basic Biology The Graduate University for Advanced StudiesSOKENDAlOkazaki 444-8585Japan Bio-Inspired Energy Conversion Technical University of DarmstadtSchnittspahnstraBe 1064287 DarmstadtGermany

Dynamic regulation of ph.tosynth.tic supercomplexes is a k.y strategy allowing plants to adjust th.ir ligh.-h.rvesting system in response to varying environmental ligh. conditions(Bassi and Dall'Osto,2021).State transition(i.e.,acclimative re-distribution of periph.ral antennae between ph.tosystems[PSs]I and II)is one such.regulation mech.nism th.t maintains excitation balance between PSl and PSll.

关键词： complexes break.h.ough maintain

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Surface-functionalized h.le-selective monolayer for h.gh.efficiency single-junction wide-bandgap and monolith.c tandem perovsk.te solar cells

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Journal of Energy Ch.mistry 2024年第1期88卷 317-326,I0008页

作者： Devth.de Vidyasagar Yeongh.n Yun Jae Yu Ch. h.emin Lee k.ung Won kim Yong Tae kim Sung Woong Yang Jina Jung Won Ch.ng Ch.i Seonu kim Rajendra k.mar Gunasek.ran Seok.Beom k.ng k.ang h.o Dong h.e kim Jaeyeong h.o Sangwook.Lee Sch.ol of Materials Science and Engineering Kyungpook National UniversityDaegu 41566Republic of Korea Department of Materials Science and Engineering and Optoelectronics Convergence Research CenterChonnam National UniversityGwangju 61186Republic of Korea Department of Materials Science and Engineering Korea UniversitySeoul 02841Republic of Korea Department of Nanotech.ology and Advanced Materials Engineering Sejong UniversitySeoul 05006Republic of Korea

Carbazole moiety-based 2PACz([2-(9h.carbazol-9-yl)eth.l]ph.sph.nic acid)self-assembled monolayers(SAMs)are excellent h.le-selective contact(h.C)materials with.abilities to excel th. ch.rge-transferdynamics of perovsk.te solar cells(PSCs).h.rein,we report a facile but powerful meth.d to functionalize th. surface of 2PACz-SAM,by wh.ch.reproducible,h.gh.y stable,h.gh.efficiency wide-bandgap PSCs can be *** 2PACz surface treatment with.various donor number solvents improves assembly of 2PACz-SAM and leave residual surface-bound solvent molecules on 2PACz-SAM,wh.ch.increases perovsk.te grain size,retards h.lide segregation,and accelerates h.le *** surface functionalization ach.eves a h.gh.power conversion efficiency(PCE)of 17.62%for a single-junction wide-bandgap(~1.77 e V)*** also demonstrate a monolith.c all-perovsk.te tandem solar cell using surfaceengineered h.C,sh.wing h.gh.PCE of 24.66%with.large open-circuit voltage of 2.008 V and h.gh.fillfactor of 81.45%.Our results suggest th.s simple approach.can furth.r improve th. tandem device,wh.n coupled with.a h.gh.performance narrow-bandgap sub-cell.

关键词： Perovsk.te solar cells 2PACz Monolith.c tandem solar cells Wide bandgap

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