• 제목/요약/키워드: Human Body Impact

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UWB 펄스를 이용한 인체 신호 검출 방법 연구 (A Study on Vital Signal Detection Using UWB Pulse)

  • 장동원;최재익
    • 한국정보통신학회:학술대회논문집
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    • 한국정보통신학회 2014년도 춘계학술대회
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    • pp.465-468
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    • 2014
  • 본 논문은 UWB(Ultra Wide Band) 펄스를 이용해서 인체에 접촉하지 않고 호흡, 심장 박동, 혈압, 혈당 등 생체 신호를 측정할 수 있는 방법을 기술하였다. 생체 신호는 건강을 점검하는 기초 자료로 인간의 활동 영역이 매우 넓어지고 수명이 길어지고 있으므로 기존 병원에 집중된 인적 및 물적 의료 시스템을 환자와 밀접하게 확산시켜서 신속한 치료 및 조치를 취해 건강한 생활을 영위할 수 있도록 요구하고 있다. 이와 같이 환자에 밀접하게 설치되어 지속적으로 불편함 없이 건강을 감시하는 방법으로 전파를 활용하는 방법이 오래 전부터 연구되어 왔으나 전파의 인체에 대한 특성 등을 정확히 파악하지 않고 개발되어 왔으므로 실제 임상에 적용하기에는 원하는 수준의 성능에 도달하지 못해 널리 실용화 되지 않고 있다. 본 논문에서는 기존 문제점인 인체에 대한 UWB 펄스파의 영향 및 특성 등을 분석해서 기술하였다.

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WBAN Off-Body 채널에서 안테나 편파의 영향 분석 (Experimental Study on the Effect of Antenna Polarization in WBAN Off-Body Channel)

  • 전재성;안병직;김선우;최재훈
    • 한국전자파학회논문지
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    • 제24권2호
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    • pp.144-151
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    • 2013
  • 본 논문에서는 무선 인체 통신 중 off-body 채널에서 안테나 편파의 변화에 대한 영향을 알아보기 위한 실험을 수행하였다. 실험은 두 수신 안테나의 편파 조합에 따라 총 4가지로 나누었으며, Line-of-Sight(LOS)와 Non-LOS(NLOS)에 따른 영향도 조사하였다. 그리고 인체의 움직임으로 인하여 생기는 안테나 편파의 변화가 신호에 어떠한 영향을 미치는지 알아보기 위해, 인체를 정지한 상태와 움직이는 상태로 나누어 신호 세기를 측정하여 비교하였다. 본 논문의 결과를 통해 수신 안테나의 편파 및 두 수신 안테나의 편파 조합에 따른 성능을 확인하였다.

How to Enhance Perceived Usefulness, Ease of Use, and Fit of Wearables: An Exploratory Study about the Physical Attributes of Smart Wristbands and Smartwatches

  • Shim, Soo In;Yu, Heejeong
    • International Journal of Advanced Culture Technology
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    • 제11권4호
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    • pp.302-309
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    • 2023
  • Wearable devices, attached to the human body, track and enhance users' activities, health, and communication. Therefore, considering ergonomic factors in product design is crucial. However, previous research has somewhat overlooked the importance of integrating ergonomic design elements into a broad spectrum of design factors. This study aims to examine the impact of physical attributes inherent in smart wristbands and smartwatches on the perceived functional value, specifically, perceived usefulness, ease of use, and fit. A survey was conducted among 289 US adults who had experience using smart wristbands or smartwatches. The collected data were analyzed using descriptive statistics, factor analysis, Cronbach's alpha, t-test, MANOVA, and regression analysis in SPSS version 29. The results showed that the shape of the front display significantly influenced perceived ease of use, and the product's weight had a substantial impact on both perceived ease of use and fit. Furthermore, distinct technical features on the front display had varied effects on perceived usefulness, ease of use, and fit. Notably, the presence of activity tracking, alarm, and calendar functionalities led to distinct differences in ease of use and fit. Features such as distance tracking, phone call, social media notifications, text messaging, and time display functions showed significant influences on the perception of fit. These findings provide insights into the physical values of smart wristbands and smartwatches as perceived by users.

Sport impact on the strength of the nanoscale protein tissues under the thermal condition

  • Xin, Fang;Mengqian, Hou
    • Advances in nano research
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    • 제13권6호
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    • pp.561-574
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    • 2022
  • The stability of protein tissues and protein fibers in the human muscle is investigated in the presented paper. The protein fibers are modeled via tube structures embedded in others proteins fibers like the elastic substrate. Physical sport and physical exercise play an important role in the stability of synthesis and strength of the protein tissues. In physical exercise, the temperature of the body increases, and this temperature change impacts the stability of the protein tissues, which is the aim of the current study. The mathematical simulation of the protein tissues is done based on the mechanical sciences, and the protein fibers are modeled via wire structures according to the high-order theory beams. The thermal stress due to the conditions of the sport is applied to the nanoscale protein fibers, then the stability regarding the frequency analysis is investigated. Finally, the impact of temperature change, physical exercise, and small-scale parameters on the stability of the protein tissues are examined in detail.

노년 여성을 위한 낙상충격 보호팬츠 디자인 프로토타입 (Prototype of Fall Impact Protective Pants for Elderly Women)

  • 박정현;이정란
    • 복식
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    • 제66권4호
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    • pp.45-60
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    • 2016
  • Elderly women have a high risk of falling down in their daily lives. The purpose of this study is to develop protective pants for elderly women, which will mitigate the impact of falls, and play a major role in reducing injuries. The two types of design were proposed for development of protective pants by selecting pad insertion point and inserting lining for keeping pad in place through the checklist to investigate from the interviews with the medical workers and the investigation of the user requirement. Design A has protective pads in the hip, hip joint, and knee, while design B has protective pads in the hip and hip joint area. For the impact absorbing material, CR (chloroprene rubber) foam was selected for its flexibility, lightness, and impact absorbing capacity, and its pad shapes were designed to produce much flexibility in consideration of the activity and human body fitness of the wearers. Three kinds of pad types, which are the cut type, the porous type, and the honeycomb type, were proposed, and were manufactured to fit into the protective parts according to their design types.

바닥온도와 실내 환기에 따른 인체반응 및 실내공기질 분석 (An Analysis of Human Reaction & IAQ Analysis by Changing the Floor Temperature & Ventilation)

  • 이지원;진경일;김세환
    • KIEAE Journal
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    • 제15권1호
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    • pp.97-102
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    • 2015
  • Recently many buildings are airtight, deterioration takes the high stage. As this room ventilation is increasingly difficult, the importance of indoor air was emphasized. And Got a few provisions on the indoor ventilation, the building is used for other purposes also requires a lot of careful research. In this study, consisting of floor heating ventilation in the room and wants to know the impact on the human body react with the carbon dioxide concentration in the indoor air were investigated PMV. We have get the data through the experimental study like this. It can be inferred correlations of ventilation and temperature according to human comfort that you should consider when using the work of residential buildings in accordance with the changing social conditions and social. It is also determined that in the future through additional experiments related data can be established basic experimental data.

남자 대학생의 외모관심과 신체만족이 외모관리행동에 미치는 영향 (The Influences of Appearance Concern and Body Satisfaction on the Appearance Management Behavior of Male College Students)

  • 박혜원;정명선
    • 복식문화연구
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    • 제19권5호
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    • pp.1119-1132
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    • 2011
  • The purpose of this study was to investigate the influences of appearance concern and body satisfaction on the appearance management behavior of male college students. For data collection, a questionnaire was administrated to 538 male college students in Gwangju city, Korea, from June 1 to June 20, 2011. To analyze the data, the SPSS 18.0 statistics package was used, and descriptive statistical analysis, factor analysis, reliability analysis(Cronbach' ${\alpha}$), regression analysis, path analysis, and t-test were conducted. The results were as follows. First, it appeared that concern of appearance had positive influences on the appearance management behavior. Also, there was a significant difference between the high-appearance-concern group and the low-appearance-concern group, as the high-appearance-concern group generally conducted greater appearance management behaviors than the low-appearance-concern group. Second, it appeared that concern of appearance had positive influences on body satisfaction, especially, on the aspect of face-satisfaction. Further, the results showed that the high-appearance-concern group seemed to have a higher body satisfaction than the low-appearance-concern group. Third, the result suggested that body satisfaction generally had positive influences on the aspects of appearance management behavior. Fourth, it was found that appearance concern had direct impact on the appearances management behavior without mediation body satisfaction.

Energy-aware Management in Wireless Body Area Network System

  • Zhang, Xu;Xia, Ying;Luo, Shiyan
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • 제7권5호
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    • pp.949-966
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    • 2013
  • Recently, Wireless Body Area Network (WBAN) has promise to revolutionize human daily life. The need for multiple sensors and constant monitoring lead these systems to be energy hungry and expensive with short operating lifetimes. In this paper, we offer a review of existing work of WBAN and focus on energy-aware management in it. We emphasize that nodes computation, wireless communication, topology deployment and energy scavenging are main domains for making a long-lived WBAN. We study the popular power management technique Dynamic Voltage and Frequency Scaling (DVFS) and identify the impact of slack time in Dynamic Power Management (DPM), and finally propose an enhanced dynamic power management method to schedule scaled jobs at slack time with the goal of saving energy and keeping system reliability. Theoretical and experimental evaluations exhibit the effectiveness and efficiency of the proposed method.

Textiles, Clothing & the Human Element

  • Hawley, Jana M.
    • 복식문화연구
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    • 제20권2호
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    • pp.286-293
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    • 2012
  • Years ago, anthropologists gave no attention to clothing and dress; but in the 1980s, a new research agenda was created placing the body surface at center stage (Tranberg-Hansen, 2004). Now culture is seen as a process created through agency, practice, and performance-no doubt, clothing very much has a human element. Just as important, we now understand that the globalization process has both local and global impact. Highest on this local/global interaction is the process of consumption. Certainly we are not surprised by this when we know that clothes may be inspired from France, tech-packed from New York, sourced from all over the world, produced in China, and sold in shops on the other side of the globe.

데카르트의 심신론이 의학에 미친 영향 (The impact of Rene Descartes′s Mind-Body Theory on Medicin)

  • 반덕진
    • 보건행정학회지
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    • 제10권1호
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    • pp.31-56
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    • 2000
  • A purpose of this study is to study on Rene Descartes's mind-body theory in medical aspect. Though Rene Descartes was not so much a doctor as a philosopher, he had health and medical science at heart. When he came into the world in 1596, he was in poor health. Therefore, he suffered from his bad health. Descartes's ideas absolutely colored Western thought for three hundred years, especially, his mind-body theory, mechanistic life-view, and reductionism had important effect on medical study and science of public health. As a rule, we know that his mind-body theory was applicable to mind-body dualism, and his mind-body dualism was connected with biomedical model of medicine. But by this study, his mind-body theory was not only mind-body dualism but also mind-body monoism. And he asserted mind-body interaction too. In other words, he advocated mind-body dualism in scientific aspect, but he knew mind-body monoism from his experence. He confessed this fact to Princess Elizabeth of Bohemia, he wrote mind-body interaction in $\boxDr$Discours de la methode$\boxUl$, $\boxDr$Meditationes de prima philosophia$\boxUl$, and $\boxDr$Traite des passions de 1'ame$\boxUl$ etc. However, only mind-body dualism of his mind-body theories was written in our medical text book, morever mental realm was excluded from the persuit of learning Descartes advocated a mechanistic world-view and mechanistic life-view, he regarded human body as a machine part. And a paticent corresponds to a troubled machine, a doctor deserves a repairman. But this point of view made holistic understanding of man impossible. Descartes divide the whole into basic building blocks, we named the approach Reductionism. Reductionism led to ontological concept in medical science, bacteriology established 'specific cause-specific disease-specific therapy'. We examined medical influence of Descartes's thought, we need to draw out a philosophic basis of medical science and science of public health by a close study of his records.

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