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Wireless,multimodal sensors for continuous measurement of pressure,temperature,and hydration of patients in wheelchair

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npj Flexible Electronics 2023年第1期7卷 479-493页

作者： Seokjoo Cho Hyeonseok Han Hyunwoo Park Sung-Uk Lee Jae-Hwan kim Sung Woo Jeon Mengqiu Wang Raudel Avila Zhaoqian Xi Kabseok Ko Minsu Park Jungyup Lee Myungwoo Choi Je-Sang Lee Weon Gi Min Byeong-Ju Lee Soyeong Lee Jungrak Choi Jimin Gu Jaeho Park Min Seong kim Junseong Ahn Osman Gul Chankyu Han Gihun Lee Seunghwan kim Kyuyoung kim Jeonghyun kim Chang-Mo Kang Jahyun Koo Sung Soo Kwak sungbong kim Dong Yun Choi Seokwoo Jeon Hyung Jin Sung Yong Bae Park Minkyu Je Young Tae Cho Yong Suk Oh Inkyu Park Department of Mechanical Engineering Korea Advanced Institute of Science and TechnologyDaejeon 34141Republic of Korea School of Electrical Engineering Korea Advanced Institute of Science and TechnologyDaejeon 34141Republic of Korea Advanced 3D Printing Technology Development Division Korea Atomic Energy Research InstituteDaejeon 34057Republic of Korea Department of Electrical and Computer Engineering University of Illinois at Urbana-ChampaignUrbanaIL 61801USA State Key Laboratory of Structural Analysis for Industrial Equipment Department of Engineering MechanicsDalian University of TechnologyDalian 116023P.R.China Department of Mechanical Engineering Northwestern UniversityEvanstonIL 60208USA DUT-BSU Joint Institute Dalian University of TechnologyDalian 116023China Ningbo Institute of Dalian University of Technology Ningbo 315016China Department of Electronics Engineering Kangwon National UniversityChuncheon 24341Republic of Korea Querrey-Simpson Institute for Bioelectronics Northwestern UniversityEvanstonIL 60208USA Sibel Health Inc NilesIL 60714USA Department of Materials Science and Engineering KAIST Institute for The Nanocentury(KINC)Korea Advanced Institute of Science and TechnologyDaejeon 34141Republic of Korea Department of Rehabilitation Medicine Gimhae Hansol Rehabilitation&Convalescent HospitalGimhae 50924Republic of Korea Department of planning and development Gimhae Hansol Rehabilitation&Convalescent HospitalGimhae 50924Republic of Korea Department of rehabilitation medicine Pusan national university hospitalBusan 49241Republic of Korea Department of AI Convergence Network Ajou UniversitySuwon 16499Republic of Korea Department of Electronic Convergence Engineering Kwangwoon UniversitySeoul 01897Republic of Korea Korea Photonics Technology Institute Gwangju 61007Republic of Korea School of Biomedical Engineering Korea UniversitySeoul 02841Republic of Korea Interdisciplinary Program in Precision Public Health Korea UniversitySeoul 02841Republic of Korea Center

Individuals who are unable to walk independently spend most of the day in a *** population is at high risk for developing pressure injuries caused by ***,early diagnosis and prevention of these injuries still remain ***,we introduce battery-free,wireless,multimodal sensors and a movable system for continuous measurement of pressure,temperature,and hydration at skin *** device design includes a crack-activated pressure sensor with nanoscale encapsulations for enhanced sensitivity,a temperature sensor for measuring skin temperature,and a galvanic skin response sensor for measuring skin hydration *** movable system enables power harvesting,and data communication to multiple wireless devices mounted at skin-cushion interfaces of wheelchair users over full body *** evaluations and numerical simulations of the devices,together with clinical trials for wheelchair patients,demonstrate the feasibility and stability of the sensor system for preventing pressure injuries caused by sitting.

关键词： injuries modal mounted

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New results on stability criteria for neural networks with time-varying delays

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Chinese Physics B 2011年第5期20卷 163-173页

作者： O.M.Kwon J.W.Kwon S.H.kim School of Electrical Engineering Chungbuk National University410 SungBong-RoHeungduk-guCheongju 361-763Republic of Korea Department of Computer Engineering Kyungwon UniversitySan 65Sujung-guSungnam 461-701Republic of Korea School of Integrated Technology College of EngineeringYonsei University50 Yonsei-RoSeodaemun-guSeoul 120-749Republic of Korea

In this paper, the problem of stability analysis for neural networks with time-varying delays is considered. By constructing a new augmented Lyapunov-Krasovskii＇s functional and some novel analysis techniques, improved delaydependent criteria for checking the stability of the neural networks are established. The proposed criteria are presented in terms of linear matrix inequalities （LMIs） which can be easily solved and checked by various convex optimization algorithms. Two numerical examples are included to show the superiority of our results.

关键词： neural networks time-varying delays stability Lyapunov method

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Changes in smoking behavior and adherence to preventive guidelines among smokers after a heart attack

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Journal of Geriatric Cardiology 2013年第2期10卷 146-150页

作者： Yoon-Jung Choi Jong-Seon Park Ung kim Sang-Hee Lee Jang-Won Son Dong-Gu Shin Young-Jo kim Myung-Ho Jeong Young-Keun Ahn Myeong-Chan Cho Jang-Whan Bae Chong-Jin kim Jin-Man Cho Kyoo-Rok Han Jun-Hee Lee Divison of Cardiology Department of Internal Medicine Yeungnam University Hospital 170 Hyeonchung-ro Nam-gu Daegu 705-717 South Korea Division of Cardiology Department of Internal Medicine Chonnam National University Hospital 42 Jebong-ro Dong-gu Kwangju 501-757 South Korea Divison of Cardiology Department of Internal Medicine Chungbuk National University Hospital 410 Sungbong-ro Heungdeok-gu Cheongju Chungcheongbuk-do 361-711 South Korea Division of Cardiology Department of Internal Medicine Kyunghee University Hospital 892 Dongnam-ro Gandong-gu Seoul 134-727 South Korea Division of Cardiology Department of Internal Medicine Hanrim University Hospital 94-195 Yeongdeungpo-dong Yeongdeungpo-gu Seoul 150-030 South Korea

Objective Risk factor modification is key to preventing subsequent cardiac events after a heart attack. This study was designed to investigate the disparity between preventive guidelines and clinical practice among smoking patients. Methods The study was carried out in smokers admitted with myocardial infarction (MI). Atotal of 275 patients who had been regularly followed for over one year after MI were randomly selected and enrolled in this *** investigated changes in smoking behavior and the adherence rate to ACC/AHA Guidelines for secondary prevention in patients with coronary artery disease at the time of, and one year after, the index event. Results The study population consisted of 275 patients (97.1% males) with a mean age of 57.0 ±11.2 years. Achievement of target goals at one year was as follows: smoking cessation, 52.3%; blood pressure, 83.9%; HbA1c, 32.7%; lipid profile, 65.5%; and body mass index (BMI), 50.6%. Over one year, 80% of the patients attempted to quit smoking; 27% of them re-started smoking within one month after discharge while 65% succeeded in cessation of smoking. At one year, only 52% of the patients overall had stopped smoking. From the multivariate logistic analysis including smoking patterns and clinical characteristics, the severity of coronary artery disease was the only independent predictor for smoking cessation (Relative risk (RR): 1.230; P = 0.022). Conclusions Only a small percentage of MI patients adhere to guidelines for secondary prevention and a sizable proportion fail to stop smoking. These findings underscore the need for an effective patient education system.

关键词： Coronary artery disease Myocardial infarction Prevention Smoking

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Advances in the light field displays based on integral imaging and holographic techniques(Invited Paper)

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Chinese Optics Letters 2014年第6期12卷 16-20页

作者： Nam kim Md. Ashraful Alam Le Thanh Bang Anh-Hoang Phan Mei-Lan Piao Munkh-Uchral Erdenebat School of Electrical and Computer Engineering Chungbuk National University410 Sungbong-ro Heungdeok-gu Cheongju Chungbuk 361-763 Korea

Light field displays comprise three-dimensional （3D） visual information presentation devices capable of providing realistic and full parallax autostereoscopic images. In this letter, the recent advances in the light field displays based on integral imaging （II） and holographic techniques are presented. Several advanced approaches to demonstrate the light field displays including viewing angle enhancement techniques of the II display, a fast hologram generation method using graphics processing unit （GPU） and multiple WRPs, and a holographic microscopy to display the living cells are reported. These methods improve some important constraints of the light field displays and add new features.

关键词： Advances in the light field displays based on integral imaging and holographic techniques II GPU

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橡胶品种对白炭黑填充胶料硫化特性和物理性能的影响

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轮胎工业 2010年第4期30卷 235-240页

作者： Chung Ho Shin Dae Su kim 葛南（摘译）陈宏（校）胡浩（校） Department of Chemical Engineering Chungbuk National University 410 Sungbong-ro Cheongju Chungbuk 361-763 South Korea 《轮胎工业》编辑部北京橡胶工业研究设计院

自从20世纪初炭黑对橡胶具有优异的补强性能被阐明后,炭黑一直作为主要补强剂与一些辅助补强剂,如粘土、碳酸钙和硅酸盐等共同用于改善硫化胶的物理性能.

关键词：物理性能白炭黑硫化特性填充胶料橡胶品种补强性能补强剂

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