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SlowFast Based Real-Time Human Motion Recognition with Action Localization

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Computer Systems Science & Engineering 2023年第11期47卷 2135-2152页

作者： Gyu-Il Kim Hyun yoo Kyungyong Chung Department of Computer Science Kyonggi UniversitySuwon16227Korea Contents Convergence Software Research Institute Kyonggi UniversitySuwon16227Korea Division of AI Computer Science and Engineering Kyonggi UniversitySuwon16227Korea

Artificial intelligence is increasingly being applied in the field of video analysis,particularly in the area of public safety where video surveillance equipment such as closed-circuit television(CCTV)is used and automated analysis of video information is ***,various issues such as data size limitations and low processing speeds make real-time extraction of video data *** analysis technology applies object classification,detection,and relationship analysis to continuous 2D frame data,and the various meanings within the video are thus analyzed based on the extracted basic *** recognition is key in this *** recognition is a challenging field that analyzes human body movements,requiring the interpretation of complex movements of human joints and the relationships between various *** deep learning-based human skeleton detection algorithm is a representative motion recognition ***,motion analysis models such as the SlowFast network algorithm,have also been developed with excellent ***,these models do not operate properly in most wide-angle video environments outdoors,displaying low response speed,as expected from motion classification extraction in environments associated with high-resolution *** proposed method achieves high level of extraction and accuracy by improving SlowFast’s input data preprocessing and data structure *** input data are preprocessed through object tracking and background removal using YOLO and DeepSORT.A higher performance than that of a single model is achieved by improving the existing SlowFast’s data structure into a frame unit *** on the confusion matrix,accuracies of 70.16%and 70.74%were obtained for the existing SlowFast and proposed model,respectively,indicating a 0.58%increase in *** detection,based on behavioral classification,the existing SlowFast detected 2,341,164 cases,whereas the proposed model detected 3,11

关键词： Artificial intelligence convolutional neural network video analysis human action recognition skeleton extraction

Linking individual attributes and host specialization in brood parasitic cuckoos

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Avian Research 2022年第2期13卷 145-151页

作者： Sue-Jeong Jin Hae-Ni Kim Geun-Won Bae Jin-Won Lee Jeong-Chil yoo Korea Institute of Ornithology Kyung Hee UniversitySeoul02447Republic of Korea Department of Biology Kyung Hee UniversitySeoul02447Republic of Korea

Generalist avian brood parasites vary considerably in their degree of host specialization(e.g.,number of hosts);some parasitize the nests of just a few host species,whereas others exploit more than 100 *** factors,including habitat range,habitat type,and geographic location,have been suggested to account for these ***,inter-specific differences in individual attributes,such as personality and plasticity,have rarely been considered as potential factors of such variation,despite their potential relationship to,for example,range *** cage experiments,we tested the hypothesis that parasitic species exploiting more host species may be more active and *** this end,we quantified behaviors exhibited by two Cuculus cuckoos(Common Cuckoo *** and Oriental Cuckoo ***)that vary greatly in their number of host ***,we evaluated exploratory behavior displayed by birds in the cage,such as the number of movements,head-turning,wing-flapping,and *** Common Cuckoo,which has a higher number of host species,tended to exhibit higher levels of exploratory behaviors than the Oriental *** study showed that the two cuckoo species exhibited different exploratory levels,as predicted by the differences in their number of *** studies regarding the causality between individual attributes and host specialization with improved experimental methodology would greatly enhance our understanding of the role of individual characteristics in the coevolution of avian brood parasites and their hosts.

关键词： Brood parasitism Common Cuckoo Individual attributes Number of hosts Oriental Cuckoo

Sexual function and psychological characteristics ofpenile paraffinoma

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Asian Journal of Andrology 2003年第3期5卷 191-194页

作者： Du Geon moon Jeong Woo yoo Jae Hyun Bae Chang Su Han Yong Ku Kim Je Jong Kim Department of Urology Korea University College of Medicine Seoul 136705 KoreaDepartment of Urology Korea University College of Medicine Seoul 136705 KoreaDepartment of Urology Korea University College of Medicine Seoul 136705 KoreaDepartment of Psychiatry Korea University College of Medicine Seoul 136705 KoreaDepartment of Psychiatry Korea University College of Medicine Seoul 136705 KoreaDepartment of Urology Korea University College of Medicine Seoul 136705 Korea

Aim: To identify the sexual, emotional and psychological status of men who augmented their penis with mineral oil injection for their small penis. Methods: Men who had penile paraffin were asked to answer the semi-structured questionnaire. The questionnaire was designed to assess the motivation, method of penile injection, changes in erectile function and satisfaction after penile injection. SCL (Symptom checklist)-90-R, STAI (State and Trait Anxiety Inventory) and Zung SDS (Self-rating depression scale) were also included in the questionnaire for psychological evaluation. Results: A total of 357 men completed the questionnaire. The first-ranked motivation of the injection was recommendation by their acquaintances (48.9 %). The majority of the respondents had the procedure by non-medical person (78.0 %). Before injection, 17.2 % had a sense of inferiority in their penis and 32 % worried about their weak erectile function. After injection, 33.0 % have found relief from their sense of inferiority and 17.8 % wish to feel improvement in their erectile function. Most of the respondents (91 %) were not satisfied with their penis and 74 % of them replied that they want to remove the injected material. Only 15.6 % did not experience side effects. Most of the subjects have suffered from various side effects such as inflammation, skin necrosis, pain, etc. No evidence of psychiatric pathology was found in psychological evaluation. Conclusion: The motivations of mineral oil injection were recommendation by their acquaintances or desire to be more mannish. Most of them had suffered from various side effects and only a small number of them felt improvement in their sense of inferiority, in their penis and erectile function. Increased public awareness is needed for the prevention of this physically and psychologically debilitating problem.

关键词： paraffinoma penis augmentation psychology

Transcranial magnetic stimulation in animal models of neurodegeneration

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Neural Regeneration Research 2022年第2期17卷 251-265页

作者： Mohammad Uzair Turki Abualait Muhammad Arshad Woo-Kyoung yoo Ali Mir Reem Fahd Bunyan Shahid Bashir Department of Biological Sciences Faculty of Basic&Applied SciencesInternational Islamic University IslamabadPakistan College of Applied Medical Sciences Imam Abdulrahman Bin Faisal UniversityDammamSaudi Arabia Department of Physical Medicine and Rehabilitation Hallym University College of MedicineAnyangSouth Korea Hallym Institute for Translational Genomics&Bioinformatics Hallym University College of MedicineAnyangSouth Korea Neuroscience Center King Fahad Specialist Hospital DammamDammamSaudi Arabia

Brain stimulation techniques offer powerful means of modulating the physiology of specific neural structures. In recent years, non-invasive brain stimulation techniques, such as transcranial magnetic stimulation(TMS) and transcranial direct current stimulation, have emerged as therapeutic tools for neurology and neuroscience. However, the possible repercussions of these techniques remain unclear, and there are few reports on the incisive recovery mechanisms through brain stimulation. Although several studies have recommended the use of non-invasive brain stimulation in clinical neuroscience, with a special emphasis on TMS, the suggested mechanisms of action have not been confirmed directly at the neural level. Insights into the neural mechanisms of non-invasive brain stimulation would unveil the strategies necessary to enhance the safety and efficacy of this progressive approach. Therefore, animal studies investigating the mechanisms of TMSinduced recovery at the neural level are crucial for the elaboration of non-invasive brain stimulation. Translational research done using animal models has several advantages and is able to investigate knowledge gaps by directly targeting neuronal levels. In this review, we have discussed the role of TMS in different animal models, the impact of animal studies on various disease states, and the findings regarding brain function of animal models after TMS in pharmacology research.

关键词： Alzheimer's disease depression glial cells neurorehabilitation Parkinson's disease repetitive transcranial magnetic stimulation transcranial direct current stimulation transcranial magnetic stimulation

Point-defect engineering of nanoporous CuBi_(2)O_(4) photocathode via rapid thermal processing for enhanced photoelectrochemical activity

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Journal of Energy Chemistry 2022年第8期31卷 201-209,I0007页

作者： Li Qu Runfa Tan Arumugam Sivanantham Min Je Kang yoo Jae Jeong Dong Hyun Seo Sungkyu Kim In Sun Cho Department of Materials Science&Engineering Ajou UniversitySuwon 16499South Korea Department of Energy Systems Research Ajou UniversitySuwon 16499South Korea Department of Nanotechnology and Advanced Materials Engineering Sejong UniversitySeoul 05006South Korea

Engineering point defects such as metal and oxygen vacancies play a crucial role in manipulating the electrical,optical,and catalytic properties of oxide semiconductors for solar water ***,we synthesized nanoporous CuBi_(2)O_(4)(np-CBO)photocathodes and engineered their surface point defects via rapid thermal processing(RTP)in controlled atmospheres(O_(2),N_(2),and vacuum).We found that the O_(2)-RTP treatment of np-CBO increased the charge carrier density effectively without hampering the nanoporous morphology,which was attributed to the formation of copper vacancies(VCu).Further analyses revealed that the amounts of oxygen vacancies(Vo)and Cu^(1+)were reduced simultaneously,and the relative electrochemical active surface area increased after the O_(2)-RTP ***,the point defects(VC_(u),Cu^(1+),and Vo)regulated np-CBO achieved a superb water-splitting photocurrent density of-1.81 m A cm^(-2) under simulated sunlight illumination,which is attributed to the enhanced charge transport and transfer properties resulting from the regulated surface point ***,the reversibility of the formation of the point defects was checked by sequential RTP treatments(O_(2)-N_(2)-O_(2)-N_(2)),demonstrating the strong dependence of photocurrent response on the RTP ***,the surface point defect engineering via RTP treatment in a controlled atmosphere is a rapid and facile strategy to promote charge transport and transfer properties of photoelectrodes for efficient solar water-splitting.

关键词： Nanoporous Copper bismuth oxide Rapid thermal processing Copper vacancy Charge transport

Resolution-enhanced X-ray fluorescence microscopy via deep residual networks

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npj Computational Materials 2023年第1期9卷 1935-1942页

作者： Longlong Wu Seongmin Bak Youngho Shin Yong S.Chu Shinjae yoo Ian K.Robinson Xiaojing Huang Computational Science Initiative Brookhaven National LaboratoryUptonNY 11973USA Condensed Matter Physics and Materials Science Department Brookhaven National LaboratoryUptonNY 11973USA National Synchrotron Light Source II Brookhaven National LaboratoryUptonNY 11973USA Materials Engineering Research Facility Applied Materials DivisionArgonne National LaboratoryLemontIL 60439USA London Centre for Nanotechnology University College LondonLondon WC1E 6BTUK

Multimodal hard X-ray scanning probe microscopy has been extensively used to study functional materials providing multiple contrast *** instance,combining ptychography with X-ray fluorescence(XRF)microscopy reveals structural and chemical properties *** ptychography can achieve diffraction-limited spatial resolution,the resolution of XRF is limited by the X-ray probe ***,we develop a machine learning(ML)model to overcome this problem by decoupling the impact of the X-ray probe from the XRF *** enhanced spatial resolution was observed for both simulated and experimental XRF data,showing superior performance over the state-of-the-art scanning XRF method with different nano-sized X-ray *** spatial resolutions were also observed for the accompanying XRF tomography *** this probe profile deconvolution with the proposed ML solution to enhance the spatial resolution of XRF microscopy will be broadly applicable across both functional materials and biological imaging with XRF and other related application areas.

关键词： resolution overcome instance

CO_(2)-adsorbent spongy electrode for non-aqueous Li–O_(2) batteries

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Journal of Energy Chemistry 2022年第2期31卷 646-653页

作者： Yiseul yoo Giseung Lee Min-Gi Jeong Hun-Gi Jung Sunghee Shin Dongjin Byun Taeeun Yim Hee-Dae Lim Center for Energy Storage Research Korea Institute of Science and Technology(KIST)Hwarang-ro 14-gil 5Seongbuk-guSeoul 02792Republic of Korea Department of Materials Science and Engineering Korea University145 Anam-roSeongbuk-guSeoul 02841Republic of Korea Department of Chemistry Incheon National University119 Academy-roYeonsu-guIncheon 22012Republic of Korea Department of Chemical and Biological Engineering Korea UniversitySeoul 02841Republic of Korea

Regulation of the Li_(2)CO_(3) byproduct is the most critical challenge in the field of non-aqueous Li–O_(2) *** considerable efforts have been devoted to preventing Li_(2)CO_(3) formation,no approaches have suggested the ultimate solution of utilizing the clean Li_(2)O_(2) reaction instead of that of Li_(2)CO_(3).Even if extremely pure O_(2) is used in a Li–O_(2) cell,its complete elimination is impossible,eventually generating CO_(2) gas during *** this paper,we present the new concept of a CO_(2)-adsorbent spongy electrode(CASE),which is designed to trap the evolved CO_(2) using adsorption *** candidates composed of amine functional groups(–NH2)for capturing CO_(2) were screened,with quadrapurebenzylamine(QPBZA)exhibiting superior CO_(2)-adsorbing ability among the proposed ***,we fabricated the CASE by sandwiching QPBZA between porous carbon layers,which facilitated the transport of gaseous *** new electrode was demonstrated to effectively capture the evolved CO_(2) during charge,therefore altering the reaction pathways to the ideal *** is highly advantageous to mitigate the undesirable CO_(2) incorporation in the next discharge,resulting in improved *** novel concept of a CO_(2)-sponging electrode provides an alternative route to the realization of practically meaningful Li–O_(2) batteries.

关键词： Li-O_(2)battery Benzylamine CO_(2)adsorption Li_(2)CO_(3) Li_(2)O_(2) CO_(2)-sponging electrode

Post-Translational Regulation of FLOWEriNG LOCUS T Protein in Arabidopsis

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Molecular Plant 2016年第2期9卷 308-311页

作者： Soo-Jin Kim Sung Myun Hong Seong Jeon yoo Suhyun moon Hye Seung Jung Ji Hoon Ahn Creative Research Initiatives Department of Life Sciences Korea University Seoul 136-701 Korea

Dear Editor,Here, we report the developmental regulation of proteolytic cleavage of the FLOWEriNG LOCUS T （FT） protein. FT, a mem- ber of the phosphatidylethanolamine-binding protein （PEBP） family, functions as a florigen or a component of florigen. PEBP binds phosphoethanolamine, and its ligand-binding domain is evolutionarily conserved from bacteria to plants and animals （Schoentgen and Jolles, 1995; Bradley et al., 1996）. PEBPs regulate important signaling pathways to control growth and differentiation （Chautard et al., 2004）. Some animal PEBP homologs undergo post-translational regulation. For example,

关键词： cleavage functions phosphoethanolamine

Ground settlement during tunneling in groundwater drawdown environment-Influencing factors

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Underground Space 2016年第1期1卷 20-29页

作者： Chungsik yoo School of Civil Architectural Engineering and Landscape ArchitectureSungkyunkwan University2066 Seoboo RoJan-An GuSuwonKyong-Gi Do 16419Republic of Korea

In this paper,the results of a parametric study on groundwater drawdown-induced surface settlement during tunneling in waterbearing ground are presented.A calibrated stress–pore pressure coupled finite element model was adopted for the parametric *** results were analyzed to establish the relationships between key design issues,such as the ground surface settlement and groundwater drawdown,and influencing *** artificial neural network(ANN)-based sensitivity analysis was performed to obtain insight into the relative importance of the influencing *** results indicated that the primary influencing factors on the settlement development are the thickness and stiffness of the soil layer within the drawdown zone and the lining permeability,while the initial void ratio and the permeability of the soil layer were considered secondary influencing *** implications and findings of the study are discussed.

关键词： Conventional tunneling Ground settlement Groundwater Finite element method Stress-pore pressure coupled analysis