• Title/Summary/Keyword: torso body

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Development of fall Detection System by Estimating the Amount of Impact and the Status of Torso Posture of the Elderly (노인 낙상 후 충격량 측정 및 기립여부 판단 시스템 구현)

  • Kim, Choong-Hyun;Lee, Young-Jae;Lee, Pil-Jae;Lee, Jeong-Whan
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.60 no.6
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    • pp.1204-1208
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    • 2011
  • In this study, we proposed the system that calculates the algorithm with an accelerometer signal and detects the fall shock and it's direction. In order to gather the activity patterns of fall status and attach on the subject's body without consciousness, the device needs to be small. With this aim, it is attached on the right side of subject's waist. With roll and pitch angle which represent the activity of upper body, the fall situation is determined and classified into the posture pattern. The impact is calculated by the vector magnitude of accelerometer signal. And in the case of the elderly keep the same posture after fall, it can distinguish the situation whether they can stand by themselves or not. Our experimental results showed that 95% successful detection rate of fall activity with 10 subjects. For further improvement of our system, it is necessary to include tasks-oriented classifying algorithm to diverse fall conditions.

Development of Accident Analysis Model in Car to Pedestrian Accident (차 대 보행자 충돌 시 사고해석 모델 개발)

  • Kang, D.M.;Ahn, S.M.
    • Journal of Power System Engineering
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    • v.13 no.5
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    • pp.76-81
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    • 2009
  • The fatalities of pedestrian account for about 21.2% of all fatalities at 2007 year in Korea. To reconstruct exactly the accident, it is important to calculate the throw distance of pedestrian in car to pedestrian accident. The frontal shape of SUV vehicle is dissimilar to passenger car and bus, so the trajectory and throw distance of pedestrian by SUV vehicle is not the same of passenger car and bus. The influencing on it can be classified into the factors of vehicle and pedestrian, and road factor. It was analyzed by PC-CRASH for simulation, and SPSS s/w was used for regression analysis. From the simulation results, the maximum impact energy of multi-body of pedestrian was occurred to that of torso body at the same time. And the throw distance increased with the increasing of impact velocity, and decreased with the increasing of impact offset. Also it decreased with the increasing of velocity of pedestrian at accident, and the throw distance of wet road was longer than that of dry road. Finally, the regression analysis model of SUV(Nissan Pathfinder type)vehicle in car to pedestrian accident was as follows; $$disti_i=-0.87-0.11offseti_i+0.69speed_i-4.27height_i+0.004walk_i+0.63wet_i+{\epsilon}_i$$.

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Lifelike Pattern Generator for a Giant Quadrupedal Walking System Based on Fuzzy Logic (퍼지로직 기반의 거대 4족 보행 시스템을 위한 실감형 패턴 발생기)

  • Lee, Sang-Won;Rim, Kyung-Hwa;Kwon, O-Hung
    • Journal of Institute of Control, Robotics and Systems
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    • v.18 no.2
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    • pp.133-140
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    • 2012
  • In this paper, we suggest a lifelike pattern generator for a quadruped walking system with a head, a tail, four legs and a torso. The system looks like a giant dinosaur which stands over 7 meters tall with its legs over 2 meters long. We focus on its lifelike naturalness. Thus, generating logical patterns in harmony with head-body-tail patterns and quadrupedal locomotion patterns makes you feel that the quadruped walking system is alive. The basic patterns of four legs and a body are obtained from a 3D graphic animation, which is made and captured from various motions of similar species in existence since the giant dinosaurs are exterminated. The dinosaur-like mechanism also is designed from bone and joint structures of quadrupedal animals. The lifelike pattern generator based on fuzzy logic could generate lifelike motions according to the dinosaur-like mechanism and the basic patterns. A series of computer simulations and experimental implements show that the pattern generator makes the quadruped walking system lifelike.

Hand-Yin Meridians of Unearthed Mawangdui Medical Texts Were Described by the Haptic Exploration (마왕퇴(馬王堆) 발굴(發掘) 경맥서(經脈書) 비음경(臂陰經) 연구(硏究) : 경맥(經脈)의 직접(直接) 지각(知覺))

  • SONG Seok-mo
    • The Journal of Korean Medical History
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    • v.35 no.1
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    • pp.87-99
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    • 2022
  • The purpose of this paper is to test the hypothesis that some early Chinese meridians were described by haptic exploration of the arterial pulse. The method is as follows: First, the relevant passages of the Mawangdui medical texts, the oldest meridian monographs, are translated based on perceptual anatomy. Second, the pulse is haptically searched for in the palm, lower arm, upper arm, armpit, and torso of the human body. Finally, their locations are compared with the translation. As a result, It was confirmed that the pulse locations detected on the body were mostly consistent with the routes of the meridians described in the texts. So meridians were haptically detectable pulse routes. What is known today as the flow direction of hand-yin meridians is actually the direction of searching the pulse. Our result runs counter to Huang Longxiang's claim that the route of the meridians are virtual routes set by speculation. Our findings also dispute Vivien Shaw's claim that the meridians of Mawangdui medical texts were discovered by anatomical dissection. They also refute the claim that meridians were discovered by the extrasensory perception of the inner sight (內觀) and the subjective experience of the meridian sensitive person. The hand-yin meridians of Mawangdui medical texts are well described so that anyone can find them by touching them with their fingers.

Walk Simulations of a Biped Robot

  • Lim, S.;Kim, K.I.;Son, Y.I.;Kang, H.I.
    • 제어로봇시스템학회:학술대회논문집
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    • 2005.06a
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    • pp.2132-2137
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    • 2005
  • This paper is concerned with computer simulations of a biped robot walking in dynamic gaits. To this end, a three-dimensional robot is considered possessing a torso and two identical legs of a kinematically ingenious design. Specific walking patterns are off-line generated meeting stability based on the ZMP condition. Subsequently, to verify whether the robot can walk as planned, a multi-body dynamics CAE code has been applied to the corresponding joint motions determined by inverse kinematics. In this manner, complex mass effects could be accurately evaluated for the robot model. As a result, key parameters to successful gaits are identified including inherent characteristics as well. Also, joint actuator capacities are found required to carry out those gaits.

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Young Children's Problem-solving : The role of representation and evaluation (아동의 문제해결능력 : 표상과 평가능력의 역할)

  • 김경미
    • Journal of Gifted/Talented Education
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    • v.5 no.2
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    • pp.17-36
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    • 1995
  • The present study examined preschooler's (3-5yrs) representation and evaluation skills in a puzzle completion task. The puzzle contained panels of four children dressed for each seacon and the key to success was using a body scheme to reconstruct the panels (head, torso, legs, feet and sky on top). Baseline data (Study 1) revealed a developmental pattern of increasing bydy scheme representation along with more careful attention to season consitent construction. Spontaneous verbalization also shifted from more guiding statements (where'the head?) to move evaluative statements (this isn't right). Study 2 examined different intervention techniques for increasing representation (verbal laveling) and evaluative processes (error detection practice), along with a control group that had unassisted practice. Three year olds benefited from verbal labeling, four year olds from both types of training. Verbalizations also showed appropriated shifts toward increasing evaluation, particularly for the older children. These findings are discussed in terms of a developmental hypothesis that representation precedes evaluation skills and that training techniques should take into account the relative balance between representation and evaluation skills in the individual for the task at hand.

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A Study on the Body Characteristics of Korean Obese Women (Part II)

  • Yi, Kyong-Hwa
    • Journal of the Korean Society of Clothing and Textiles
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    • v.34 no.6
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    • pp.982-996
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    • 2010
  • This study classified the body shapes of Korean obese women and investigated the differences of each body shape, using 2004 Size Korea data. For selecting the obesity sample, 7 obesity judgment indices were chosen through previous clothing-related studies. A total of 636 females defined as "obese" by 5 out of 7 indices were selected as subjects and 54 body measurements and obesity judgment indices were used in this study. Firstly, mean, standard deviation, minimum, and maximum values of each measurement and item were obtained from the descriptive analysis of 53 measurements. According to the descriptive analysis, all measurements and obesity judgment indices of the subjects demonstrated a serious obesity level shown by BMI 27.11, R$\ddot{o}$hrer index 1.76, Vervaeck index 104.77, Relative weight 133.00, WHR 0.90, and waist circumference 86.71cm. In addition, the measurements and indices showed considerable differences between minimum and maximum values. Significant differences were identified in all measurements and items at a significant level, p=.001. Each distribution of body types according to age, stature, bust, and waist circumference groups was provided in this study. Secondly, factor analyses were conducted using 38 measurement items to extract the body characteristics of obese women. Factor 1 was "circumference measurements & obesity judgment indices," Factor 2 was "heights & arm-related lengths," and Factor 3 was "size and ratio of waist circumference & hip circumference." Factor 4 was "lengths in upper body," Factor 5 was "back width in upper body," Factor 6 was "side neck point to bust & bust circumference," Factor 7 was "length in lower body & arm circumferences" and Factor 8 was "neck base circumference & front width in upper body." These 8 factors explained 76.54% of the total variance. Finally, 5 body types were selected in the cluster analysis. Type 1 (with big back widths & arm circumferences) was 15.5% of the entire subjects, Type 2 (the shortest and fattest, with big upper body) was 18.8%, Type 3 (with big breast) was 27.8%, Type 4 (the tallest and longest in arm lengths, with the smallest arm circumferences and lengths in torso) was 22.5%, and Type 5 (with big hips compared to waist circumferences, smaller height and upper body) was 15.5%. Fundamental differences were identified in all measurements and items at the significant level of p=.001. In addition, each distribution of body type according to age, height, bust, and waist circumference groups was provided in this study.

A Study of Body Measures of Female Adults in Their 20's 40's and 60's Koreans Living in Japan (재일동포 20대.40대 및 60대 성인 여성의 신체 계측치 연구)

  • Im, Soon;Chung, Myung-Hee
    • Journal of the Korean Society of Clothing and Textiles
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    • v.32 no.1
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    • pp.134-146
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    • 2008
  • This study measured the body parts of female adults in their 20s, 40s and 60s living in Japan and analyzed and examined the measures by age group in order to provide the basic data required for the somatics study of Koreans living abroad. The subjects were 304 women in their 20s, 40s and 60s born in Japan and living in Osaka at present, and 81 items were measured. The major results of this study are described below. All women in their 20s, 40s and 60s showed significant differences in weight, waist size and abdominal size. The 19 height items of which group were different from the measurements of the women in their 60s. All 20 length items displayed a significant difference by age group. The significant differences by age group were also observed in eight items of 12 width items, 10 items of 13 thickness items and 13 items of 14 girth items except the ankle girth. The weight measurements had a significant difference by age group(${\le}0.05$). The women in their 20s, 40s and 60s revealed almost similar values in the shoulder angles. As a result of the analysis above, the items that were considered being included in the obesity items in all age groups displayed significant personal differences. The women in their 20s had the largest sizes in the length and height items. The older the age, the higher the measures of width and girth items were. Those results helped to estimate the change of figures by torso by age.

Feasibility Study of Applying the Acrylic Assistant Equipment (ACR) to Reduce Patient's Discomfort in Lower Abdomen MRI Scan (하복부 MRI 검사 시 환자의 불편함을 줄이기 위한 아크릴 보조 장치 사용의 타당성 조사)

  • Park, Eunhye;Lee, Minsik
    • Journal of the Korean Society of Radiology
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    • v.12 no.4
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    • pp.475-480
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    • 2018
  • In lower abdominal MRI scan, patients have been tested by physically contacting with the body array coil. In this study, we have designed the acrylic assistant equipment (ACR) which allows the contactless scan of the patient to the coil and evaluated the feasibility by comparing the acquired images with ACR to those obtained without ACR. We tested 10 cases (F: 5, m: 5) by using the Ingenia $3.0T^{TM}$ MR system and dStreamTM torso coil (Philips Healthcare, Netherlands). We implemented T1 AX TSE and eTHRIVE (GRE) techniques. The scanned images were quantitatively and qualitatively assessed. In qualitatively, the TSE shows 4.44 and 4.56 mean values with and without the ACR and 4.34 and 4.28 at the GRE, respectively. In quantitatively, the TSE shows 12.15 CNR, 17.95 SNR and 12.71 CNR, 18.96 SNR with and without the ACR. And GRE shows 17.72 CNR, 22.59 SNR and 18.26 CNR, 24.47 SNR with and without the ACR, respectively. We have designed and implemented the acrylic assistant equipment to lower abdominal patients. Our data indicate that it is possible to obtain similar image qualities to current lower abdominal MRI scan without the physical contact to the patient.

A study of using physical body in Contemporary Painting (현대회화에서 신체성의 활용에 관한 연구)

  • Park Ki-Woong
    • Journal of Science of Art and Design
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    • v.6
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    • pp.140-202
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    • 2004
  • Body means 1)the whole structure and substance of a man, animal, or plant 2) the trunk or torso of a man or animal 3) part of garment that covers the trunk 4) the fresh or material substance, as opposed to the spirit. Human body could be distinguished as fresh and spirit. Body has the meaning of physicality. Physical means the bodily and constitution, but in the meaning of constitution there is the content of spirituality. Physicality means the appearing or arising of trace or image or nuance of body. The paintings which are using bodies are 1) directly draw bodies 2) twisting or transformation or nuance of the body and highly upgrade the physical emotion or fantastic bodily nuance 3) directly rubbing artist's body on the surface of painting with pigments to elect tactile specification. These physical art have appeared broadly by various artists, mainly with the social aspects of sex, drug, psycho sexual issues. In case of Joel peter Whitkin, the reason of strong physicality in the art is from the mind of the rejection and resistance of real world which is targeting top, perfect and beauty. Further explanation, being the world which is separated top and under, men and women, beauty and ugly; further in the situation, the hierarchy, terror and pressure began and many difficult problems has derived. The contents of attacking feminists's art works are very obscene to reveal female and male's phallus strongly. Sometime, it is strongly related in the political issues. The physical paintings have strong meanings in the action by hands and feet. It supports that it could reveal the humanity with smell, breath, and traces of bodies. In the bodies, the origin of life begins which gives human life by blood lines and water. Sometime, the physical paintings are made by the blood and urine to stick the physicality for special nuance. The physical paintings are made by the image of penis and clitoris which are related in the image of urinating, ejaculation and sometime is symbolized as pens and candles to drop liquid. The selected painters who are related in physical painting are Jackson Pollock, Andrea Serano, Eve Klein, Francis Bacon, Francesco Clemente, Lichard Long, Jakes & Dinos Chapman, Anselm Kiefer, Kiki Smith and Park, Ki Woong. Francis Bacon's style is destructive in representing human shapes which give us special message about the unbearable activity of men politician, high brain, wealthy and religious people. Francesco Clemente's method is to use throat, ear hole, mouse, clitoris, belly nostrils and every holes of body to transmute human physical body. Lichard Long uses directly his body in drawing the surface of painting by using liquid of mud Jakes & Dinos Chapman destroys or transforms the bodies of human. It sometime appears wrong location of the bodies that the penis and vulva is in between human faces or nose of women, Anselm Kiefer uses human hair for representing the human decaying martyrs, and indirectly using straw, he gives special ritual action to repent the Nazi's fault. From 2002 to 2003, Park KI Woong used women womb images to intermingle the smoke shape of <9.11 terror, 2001> in New York to reveal the painful situation of the time(*).

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