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sleep Posture Clas.i.ication Using RGB and Thermal Cameras Based on Deep Learning Model

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Computer Modeling in Engineering & s.i.nces 2024年第8期140卷 1729-1755页

作者： Awais Khan Chomyong Kim Jung-Yeon Kim Ahsan Aziz Yunyoung nam Department of iCT Convergence Soonchunhyang UniversityAsan31538Korea iCT Convergence Research Center Soonchunhyang UniversityAsan31538Korea Emotional and intelligent Child Care Convergence Research Center Soonchunhyang UniversityAsan31538Korea

sleep posture surveillance is crucial for patient comfort,yet current systems face difficulties.i. providing compre-hensive studies due to the obstruction caused by *** posture assessment remains challenging because of the complex nature of the human body and variations.i. sleep ***,this study introduces an innovative method utilizing RGB and thermal cameras for comprehensive posture clas.i.ication,thereby enhancing the analysis of body position and *** method begins by capturing a dataset of sleep postures.i. the form of videos using RGB and thermal cameras,which depict six commonly adopted postures:supine,left log,right log,prone head,prone left,and prone *** study involves 10 participants under two conditions:with and without ***,the database is normalized into a video *** subsequent step entails training a fine-tuned,pretrained Visual Geometry Group(VGG16)and ResNet50 *** the third phase,the extracted features are utilized for *** fourth step of the proposed approach employs a serial fusion technique based on the normal distribution to merge the vectors derived from both the RGB and thermal ***,the fused vectors are passed to machine learning clas.i.iers for final *** dataset,which includes human sleep postures used in this study’s experiments,achieved a 96.7%accuracy rate using the Quadratic support Vector Machine(QsVM)without the ***,the Linear sVM,when utilized with a blanket,attained an accuracy of 96%.When normal distribution serial fusion was applied to the blanket features.i. resulted in a remarkable average accuracy of 99%.

关键词： Human sleep posture VGG16 deep learning ResNet50 fusion machine learning

MOALG: A Metaheuris.i. Hybrid of Multi-Objective Ant Lion Optimizer and Genetic Algorithm for solving Design Problems

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Computers, Materials & Continua 2024年第3期78卷 3489-3510页

作者： Rashmi sharma Ashok Pal Nitin Mittal Lalit Kumar sreypov Van Yunyoung nam Mohamed Abouhawwash Department of Mathematics Chandigarh UniversityGharuanMohali140413India Deaprtment of industry 4.0 Shri Vishwakarma Skill UniversityPalwal121102India Department of iCT Convergence Soonchunhyang UniversityAsan31538Korea Department of Computational Mathematics Science and Engineering(CMSE)College of EngineeringMichigan State UniversityEast LansingMI 48824USA Department of Mathematics Faculty of ScienceMansoura UniversityMansoura35516Egypt

This study proposes a hybridization of two efficient algorithm’s Multi-objective Ant Lion Optimizer Algorithm(MOALO)which is a multi-objective enhanced version of the Ant Lion Optimizer Algorithm(ALO)and the Genetic Algorithm(GA).MOALO version has been employed to address those problems containing many objectives and an archive has been employed for retaining the non-dominated *** uniqueness of the hybrid is that the operators like mutation and crossover of GA are employed in the archive to update the solutions and later those solutions go through the process of MOALO.A first-time hybrid of these algorithms.i. employed to solve multi-objective *** hybrid algorithm overcomes the limitation of ALO of getting caught in the local optimum and the requirement of more computational effort to converge *** evaluate the hybridized algorithm’s performance,a set of constrained,unconstrained test problems and engineering design problems were employed and compared with five well-known computational algorithms-MOALO,Multi-objective Crystal structure Algorithm(MOCrystAl),Multi-objective Particle swarm Optimization(MOPsO),Multi-objective Multiverse Optimization Algorithm(MOMVO),Multi-objective salp swarm Algorithm(MssA).The outcomes of five performance metrics are statis.i.ally analyzed and the most efficient Pareto fronts comparison has been *** proposed hybrid surpasses MOALO based on the results of hypervolume(HV),spread,and *** primary objective of developing this hybrid approach has been achieved *** proposed approach demonstrates superior performance on the test functions,showcasing robust convergence and comprehensive coverage that surpasses other exis.i.g algorithms.

关键词： Multi-objective optimization genetic algorithm ant lion optimizer metaheuris.i.

Tailoring Clas.i.al Conditioning Behavior in TiO_(2) Nanowires:ZnO QDs-Based Optoelectronic Memristors for Neuromorphic Hardware

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Nano-Micro Letters 2024年第7期16卷 265-280页

作者： Wenxiao Wang Yaqi Wang Feifei Yin Hongsen Niu Young-Kee s.i. Yang Li Eun-seong Kim nam-Young Kim school of information s.i.nce and Engineering University of JinanJinan 250022People’s Republic of China RFiC Centre NDAC CentreKwangwoon UniversityNowon-guSeoul 139-701South Korea Department of Electronics Engineering Kwangwoon UniversityNowon-GuSeoul 139-701South Korea school of Microelectronics Shandong UniversityJinan 250101People’s Republic of China Department of Molecular Medicine and Biopharmaceutical s.i.nces Seoul National UniversitySeoul 08826South Korea

Neuromorphic hardware equipped with associative learn-ing capabilities presents fas.i.ating applications.i. the next generation of artificial ***,research into synaptic devices exhibiting complex associative learning behaviors.i. s.i.l ***,an optoelec-tronic memristor based on Ag/TiO_(2) Nanowires:ZnO Quantum dots/FTO was proposed and constructed to emulate the biological associative learning *** implementation of synaptic behaviors.i.cluding long and short-term plas.i.ity,and learning-forgetting-relearning behaviors,were achieved in the device through the application of light and electrical *** the optoelectronic co-modulated characteris.i.s,a simulation of neuromorphic computing was conducted,resulting in a handwriting digit recognition accuracy of 88.9%.Furthermore,a 3×7 memristor array was constructed,confirming its application in artificial visual *** importantly,complex biological associative learning behaviors were emulated by mapping the light and electrical s.i.uli into conditioned and unconditioned s.i.uli,*** training through associative pairs,reflexes could be triggered solely using light ***-sively,under specific optoelectronic signal applications,the four features of clas.i.al conditioning,namely acquisition,extinction,recovery,and generalization,were elegantly *** work provides an optoelectronic memristor with associative behavior capabilities,offering a pathway for advancing brain-machine interfaces,autonomous robots,and machine self-learning in the future.

关键词： Artificial intelligence Clas.i.al conditioning Neuromorphic computing Artificial visual memory Optoelectronic memristors ZnO Quantum dots

Advances.i. advanced solution-synthesis-based structural materials for tactile sensors and their intelligent applications

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infoMat 2024年第1期6卷 31-64页

作者： Hongsen Niu Ning Li Eun-seoung Kim Young Kee s.i. nam-Young Kim Guozhen shen Yang Li school of information s.i.nce and Engineering University of JinanJinanthe People's Republic of China RFiC Centre Department of Electronics EngineeringKwangwoon UniversitySeoulRepublic of Korea Department of Molecular Medicine and Biopharmaceutical s.i.nces Seoul National UniversitySeoulRepublic of Korea school of integrated Circuits and Electronics Beijing Institute of TechnologyBeijingthe People's Republic of China school of Microelectronics Shandong UniversityJinanthe People's Republic of China

intelligent applications,with tactile sensors at their core,represent significant advancement in the field of artificial ***,achieving perception abilities.i. tactile sensors that match or exceed human s.i. remains a formidable ***,the design and implementation of hierarchical structural materials are considered the optimal solution to this *** contrast to conventional methods,such as complicated lithography and three-dimensional printing,the cost-effective and scalable nature of advanced solution-synthesis methods makes them ideal for preparing diverse tactile sensors with hierarchical structural ***,the process and applicability of advanced solution synthesis methods have yet to form a seamless ***,the development and intellectualization of tactile sensors based on advanced solution synthesis methods are s.i.l in their early stages,and require a comprehensive and systematic review to usher in *** study delves.i.to the advantages and disadvantages of various advanced solution synthesis methods,providing detailed ***,the positive effects of hierarchical structural materials constructed using these methods.i. tactile sensors and their intelligent applications are also discussed in ***,the challenges and future opportunities faced by this emerging field are summarized.

关键词： aqueous phase reduction artificial intelligence hydrothermal growth in situ polymerization tactile sensor

Biomimetic Fe_(7)s_(8)/Carbon electrocatalyst from[FeFe]-Hydrogenase for improving pH-Universal electrocatalytic hydrogen production special Collection:Aggregation-induced Processes and Functions

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Aggregate 2024年第1期5卷 451-459页

作者： Dohun Kim subramani surendran sejin im Jaehyoung Lim Kyoungsuk Jin Ki Tae nam Uk sim Department of Energy s.i.nce&Engineering Daegu Gyeongbuk Institute of Science&Technology(DGIST)DaeguRepublic of Korea Hydrogen Energy Technology Laboratory Korea Institute of Energy Technology(KENTECH)NajuRepublic of Korea Department of Chemistry Korea UniversitySeoulRepublic of Korea Department of Materials s.i.nce and Engineering Seoul National UniversitySeoulRepublic of Korea

Efficient and cost-effective electrocatalysts that can operate across a wide range of pH conditions are essential for green hydrogen *** by biological systems,Fe_(7)s_(8)nanoparticles.i.corporated on polydopamine matrix electrocatalyst were synthesized by co-precipitation and annealing *** resulting Fe_(7)s_(8)/C electrocatalyst possesses a three-dimensional structure and exhibits enhanced electrocatalytic performance for hydrogen production across various pH ***,the Fe_(7)s_(8)/C electrocatalyst demonstrates exceptional activity,achieving low overpotentials of 90.6,45.9,and 107.4 mV in acidic,neutral,and alkaline environments,*** impedance spectroscopy reveals that Fe_(7)s_(8)/C exhibits the lowest charge transfer resistance under neutral conditions.i.dicating an improved proton-coupled electron transfer ***-wave electron paramagnetic resonance results confirm a change in the valence state of Fe from 3+to 1+during the hydrogen evolution reaction(HER).These findings closely resemble the behavior of natural[FeFe]-hydrogenase,known for its superior hydrogen production in neutral *** remarkable performance of our Fe_(7)s_(8)/C electrocatalyst opens up new pos.i.ilities for utilizing bioins.i.ed materials as catalysts for the HER.

关键词： biomimetic electrocatalyst hydrogen production renewable energy

The neutrophil–osteogenic cell axis promotes bone destruction in periodontitis

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international Journal of Oral s.i.nce 2024年第1期16卷 154-162页

作者： Yutaro Ando Masayuki Tsukasaki nam Cong-Nhat Huynh s.i.ao Zang Minglu Yan Ryunosuke Muro Kazutaka Nakamura Masatsugu Komagamine Noriko Komatsu Kazuo Okamoto Kenta Nakano Tadas.i.Okamura Akira Yamaguchi Kazuyuki is.i.ara Hiros.i.Takayanagi Department of immunology Graduate School of Medicine and Faculty of MedicineThe University of Tokyo7-3-1HongoBunkyo-kuTokyoJapan Department of Microbiology Tokyo Dental College2-1-14 Kanda-Misaki-choChiyoda-kuTokyoJapan Oral Health s.i.nce Center Tokyo Dental College2-9-18Kanda-Misaki-choChiyodakuTokyoJapan Department of Osteoimmunology Graduate School of Medicine and Faculty of MedicineThe University of Tokyo7-3-1HongoBunkyo-kuTokyoJapan Unit of Prosthodontics Laboratory of Oral-Maxillofacial Biology Faculty of Odonto-StomatologyUniversity of Medicine and Pharmacy at Ho Chi Minh CityHo Chi Minh CityVietnam Department of Oral and Maxillofacial surgery Department of Sensory and Motor System MedicineGraduate School of MedicineThe University of TokyoTokyoJapan Division of Rheumatology Department of Internal MedicineKeio University School of MedicineTokyoJapan Department of Laboratory Animal Medicine Research InstituteNational Center for Global Health and MedicineTokyoJapan

The immune-stromal cell interactions play a key role in health and diseases. in periodontitis, the most prevalent infectious disease in humans, immune cells accumulate in the oral mucosa and promote bone destruction by inducing receptor activator of nuclear factor-κB ligand (RANKL) expres.i.n in osteogenic cells such as osteoblasts and periodontal ligament cells. However, the detailed mechanism underlying immune–bone cell interactions.i. periodontitis.i. not fully understood. Here, we performed single-cell RNAsequencing analysis on mouse periodontal lesions and showed that neutrophil–osteogenic cell crosstalk is.i.volved in periodontitis.i.duced bone loss. The periodontal lesions displayed marked infiltration of neutrophils, and in silico analyses suggested that the neutrophils.i.teracted with osteogenic cells through cytokine production. Among the cytokines expressed in the periodontal neutrophils, oncostatin M (OsM) potently induced RANKL expres.i.n in the primary osteoblasts, and deletion of the OsM receptor in osteogenic cells significantly ameliorated periodontitis.i.duced bone loss. Epigenomic data analyses.i.entified the OsM-regulated RANKL enhancer region in osteogenic cells, and mice lacking this enhancer showed decreased periodontal bone loss while maintaining physiological bone metabolism. These findings shed light on the role of neutrophils.i. bone regulation during bacterial infection, highlighting the novel mechanism underlying osteoimmune crosstalk.

关键词： period neutrophil destruction

Vertical plane depth-resolved surface potential and carrier separation characteris.i.s.i. flexible CZTsse solar cells with over 12% efficiency

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Carbon Energy 2024年第3期6卷 36-52页

作者： Dae-Ho son Ha Kyung Park Dae-Hwan Kim Jin-Kyu Kang s.i.Joon sung Dae-Kue Hwang Jaebaek Lee Dong-Hwan Jeon Yunae Cho William Jo Taeseon Lee JunHo Kim sang-Hoon nam Kee-Jeong Yang Division of Energy Technology DGISTDaeguRepublic of Korea Research Center for Thin Film solar Cells DGISTDaeguRepublic of Korea Department of Physics Ewha Womans UniversitySeoulRepublic of Korea Department of Physics Incheon National UniversityIncheonRepublic of Korea Department of Mechanical Engineering Massachusetts Institute of TechnologyCambridgeMassachusettsUSA

Cu2Znsn(s,se)4(CZTsse)solar cells have resource distribution and economic *** main cause of their low efficiency is carrier loss resulting from recombination of photo-generated electron and *** overcome this.i. is.i.portant to understand their electron-hole behavior *** determine the carrier separation characteris.i.s,we measured the surface potential and the local current in terms of the absorber *** elemental variation in the intragrains.i.s)and at the grain boundaries(GBs)caused a band edge s.i.t and bandgap(Eg)*** the absorber surface and subsurface,an upward Ec and Ev band bending structure was observed at the GBs,and the carrier separation was *** the absorber center,both upward Ec and Ev and downward Ec-upward Ev band bending structures were observed at the GBs,and the carrier separation was *** improve the carrier separation and suppress carrier recombination,an upward Ec and Ev band bending structure at the GBs.i. desirable.

关键词： carrier separation CZTsse flexible solar cell local current surface potential

Vomiting-induced pharyngeal perforation during bowel preparation for colonoscopy:A case report

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World Journal of Clinical Cases 2024年第18期12卷 3615-3621页

作者： Geonhee Kim Won Hyuk Lee seokin Kang Jung Rock Moon Yoon suk Lee Jun Hyuk son nam-Hoon Kim Jong Wook Kim Department of internal Medicine Ilsan Paik HospitalInje University College of MedicineGoyang 10380South Korea

BACKGROUND Effective bowel cleansing is essential for a successful ***,such as polyethylene glycol,are commonly used for bowel *** is a frequent complication during bowel preparation,and forceful vomiting can potentially lead to esophageal perforation,as reported in several previous ***,pharyngeal perforation during bowel preparation has not been previously ***,we present a case of pharyngeal perforation induced by forceful vomiting during bowel *** sUMMARY A 38-year-old man with a history of hypertension,dys.i.idemia,diabetes mellitus,and end-stage renal disease on hemodialysis was admitted for evaluation of recurrent abdominal *** patient complained of sudden pain in the neck,throat,and anterior chest following forceful vomiting during bowel *** examination revealed crepitus under the s.i. of the neck and anterior chest on palpation,and upper gastrointes.i.al endoscopy revealed pharyngeal *** perforation site was located above the upper esophageal sphincter,which dis.i.guished it from Boerhaave’s *** medical management was chosen after consultation with a thoracic surgeon and an otolaryngologist,considering the patient's mild symptoms,stable vital signs,and the small size of the lesion;the perforation resolved without endoscopic or surgical *** patient was discharged from hos.i.al two weeks after the *** Des.i.e its rarity,pharyngeal perforation should be considered a potential complication of bowel preparation for colonoscopy.

关键词： Colonoscopy Pharynx Polyethylene glycols spontaneous perforation Case report

A concise review on surface and structural modification of porous zeolite scaffold for enhanced hydrogen storage

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Chinese Journal of Chemical Engineering 2024年第6期70卷 33-53页

作者： B.A.Abdulkadir R.s.R.Mohd Zaki A.T.Abd Wahab s.N.Miskan Anh-Tam Nguyen Dai-Viet N.Vo H.D.setiabudi Centre for Research in Advanced Fluid&Processes Universiti Malaysia Pahang Al-Sultan AbdullahLebuh Persiaran Tun Khalil YaakobGambangPahang 26300Malaysia Faculty of Chemical&Process Engineering Technology Universiti Malaysia Pahang Al-Sultan AbdullahLebuh Persiaran Tun Khalil YaakobGambangPahang 26300Malaysia Center of Excellence for Green Energy and Environmental Nanomaterials(CE@GrEEN) Nguyen Tat Thanh University300A Nguyen Tat ThanhDistrict 4Ho Chi Minh City 755414Viet Nam

inves.i.ating zeolites as hydrogen storage scaffolds.i. imperative due to their porous nature and favorable physicochemical ***,the storage capacity of the unmodified zeolites has been rather unsatisfactory(0.224%-1.082%(mass))compared to its modified ***,the contemporary focus on enhancing hydrogen storage capacities has led to significant attention towards the utilization of modified zeolites,with studies exploring surface modifications through physical and chemical treatments,as well as the integration of various active *** enhanced hydrogen storage properties of zeolites are attributed to the presence of aluminosilicates from alkaline and alkaline-earth metals,resulting in increased storage capacity through interactions with the charge density of these ***,there is a great demand to critically review their role such as well-defined topology,pore structure,good thermal stability,and tunable hydrophilicity in enhanced hydrogen *** article aimed to critically review the recent research findings based on modified zeolite performance for enhanced hydrogen *** of the factors affecting the hydrogen storage capacities of zeolites that can affect the rate of reaction and the stability of the adsorbent,like pressure,structure,and morphology were studied,and ***,future perspectives,recommendations,and directions for modified zeolites were discussed.

关键词： Zeolites Hydrogen storage surface modification Adsorption Active metal