• Title/Summary/Keyword: Skin Movement

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A Development of Brassiere Prototype for Attaching the Measuring Module of ECG and Body Movement while Sleeping (심전도 및 수면시 체동 측정 모듈 장착을 위한 브래지어 프로토타입 개발)

  • Kweon, Soo Ae;Sohn, Boo-hyun
    • Journal of Fashion Business
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    • v.21 no.2
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    • pp.78-90
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    • 2017
  • In this study, brassiere prototype was developed for attaching the measuring module of ECG measurement and body movement while sleeping. For ECG measurement, textile electrodes was made of stretch fabric containing polyurethane in consideration of elasticity of brassiere band. It was used as a conductive yarn by silver coating on the warp. The textile electrodes was woven with twisted twill to increase the density of conductive yarns. The pressure of the brassiere band was enough to sensing stably the ECG, and the elastic band of the brassiere was designed to be wider than 3cm to install the textile electrodes inside, so that textile electrodes was close fitting to the skin at a constant pressure without lifting. The textile electrodes coated with silicon on rear was attached to brassiere elastic band, and the module was installed with a snap connector to textile electrodes of brassiere band. The module was suitable to monitering ECG measurement of a typical R peak, pulse rate and body movement while sleeping without interfering.

Improvement of the performance of EOC Amp in AOC method using microprocessor (마이크로프로세서를 이용한 AOC 방식에서 EOG 앰프 성능 개선)

  • 고석남;이상세;정호춘;임승관;이영석;진달복;박병림
    • Proceedings of the IEEK Conference
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    • 2000.06e
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    • pp.218-221
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    • 2000
  • The electronystagmography(ENG) means to measure and record CRP(Corneal-Retinal Potential) whenever the eyeball is moved by using a skin electrode stuck to the hi-temporal and the difference of CRP. Both the horizontal and vertical movement are known according to the position of the stuck skin electrode. In this paper, the variable time-constances to record the eyeball signal of the conventional EOG(Electro-Oculograph) Amplifier is chosen. The shorter the time-constance is, the worse the distortion of a signal is. But the unbalanced impedance of the electrode stuck on the hi-temporal is reduced. Also, the longer the time-constance is, the less the distortion of it signal is. But it is sensitive to the change of base line according to the unbalanced impedance. In order to solve these problems, an DC-Amplifier, the distortion of the eyeball signal is globally used. By solving unbalanced impedance problem of EOG amplifier, the distortion ratio of EOG amplifier is improved.

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A New Measurement Method of a Radial Pulse Wave Using Multiple Hall Array Devices

  • Lee, Sang-Suk;An, Myoung-Chone;Ahn, Sung-Hoon
    • Journal of Magnetics
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    • v.14 no.3
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    • pp.132-136
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    • 2009
  • This study investigated the radial pulse waveform obtained by a medical pulsimeter sensor. A pulse-sensing part array consisting of multiple Hall devices was located over a skin-contacting part with a hard magnetic material. The periodic movement of the magnetic material of the skin-contacting part affected the magnetic field in the pulse-sensing part array and was detected by multiple Hall devices. The analysis of a radial pulse waveform that is measured noninvasively by detecting the changes of the magnetic field can be used to develop a new diagnostic algorithm of oriental medical apparatus.

Cutaneous Leishmaniasis of the Eyelids: A Case Series with Molecular Identification and Literature Review

  • Mohammadpour, Iraj;Motazedian, Mohammad Hossein;Handjani, Farhad;Hatam, Gholam Reza
    • Parasites, Hosts and Diseases
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    • v.54 no.6
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    • pp.787-792
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    • 2016
  • Cutaneous leishmaniasis (CL) is a protozoan disease which is endemic in Iran. It is transmitted by the Phlebotomus sand fly. The eyelid is rarely involved possibly because the movement of the lids impedes the sand fly from biting the skin in this region. Here, we report 6 rare cases of eyelid CL. The patients were diagnosed by skin scraping, culture, and PCR from the lesions. Skin scraping examination showed Leishmania spp. amastigotes in the cytoplasm of macrophages. Culture examination was positive for Leishmania spp. PCR was positive for Leishmania major and Leishmania tropica. The lesions were disguised as basal cell carcinoma, chalazion, hordeolum, and impetigo. The patients were treated with intramuscular meglumine antimoniate (20 mg/kg/day) for at least 3 weeks. They showed a dramatic response, and the lesions almost completely disappeared. We emphasized the importance of clinical and diagnostic features of lesions, characterized the phylogenetic relationship of isolated parasites, and reviewed the literature on ocular leishmaniasis.

Comfort Evaluation by Wearing a Gait-Assistive Rehabilitation Robot (보행보조 재활 로봇 착용에 따른 쾌적성 평가)

  • Eom, Ran-i;Lee, Yejin
    • Journal of the Korean Society of Clothing and Textiles
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    • v.44 no.6
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    • pp.1107-1119
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    • 2020
  • This study analyzed a subject's body reaction and subjective sensation when wearing a gait-assistive rehabilitation robot. The research method measured skin and clothing surface temperatures for 'seating-standing' and 'walking in place' exercises after wearing a gait-assistive rehabilitation robot. In addition, subjective sensation and satisfaction were evaluated on a 7-point Likert scale. The study results showed that the average skin temperature during exercise while wearing the gait-assistive rehabilitation robot was within a comfortable range. However, during the 'seating-standing' exercise, the skin temperature was slightly lowered. Additionally, the clothing surface temperature tended to be lower than the pre-exercise temperature after all exercises. The subjective sensation evaluation results showed that the wear comfort of the waist part was low during mobility/activity. In addition, an overall improvement in the wear comfort of the robot is necessary. The short-time movement of wearing and walking in the gait-assistive rehabilitation robot did not interfere with the thermal comfort of the body. However, the robot needs to be ergonomically improved in consideration of the long wearing time along with improved material that to satisfy overall wearing comfort.

A Study on the Characteristics of Minimal Architecture and Literal Space (즉자석 공간예술과 미니멀리즘 건축의 현대적 의미에 관한연구)

  • 이은석;임종엽
    • Korean Institute of Interior Design Journal
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    • no.14
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    • pp.121-129
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    • 1998
  • It opposition to visual luxury of Post modern Architecture a new tendency characterized as 'simplicity' emerged in architecture. It seems clear that such a tendency so called Minimal Architecture has risen as a reaction to the surfeit of sign and the mixture of languages generated by postmodernism. This new simplicity is also related to the tradition of Modern Architecture and the Minimal Art Movement is 1960's. They adopted simple is also related to the tradition of Modern Architecture and the Minimal Art Movement is 1960's. They adopted simple primary Volume to avoid the main fluence on the already chaotic urban environment As a result a strong monumentality is achieved. The main interests for 'minimal' architects seem to be the making of simple structure and the repetition of modular elements to achieve an economic and efficient construction method. Transparent and honest expression is preferred instead of attaching another ornament skin on to the skeleton of the architecture.

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Japanese Postmodernity and Flat Architecture

  • Kim, Lawrence B.
    • Architectural research
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    • v.21 no.4
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    • pp.99-109
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    • 2019
  • 'Superflat' is a hugely influential contemporary art movement founded by Takashi Murakami. The concept of Superflat art is based on the notion that there exists in contemporary Japanese culture an inherent inclination for two-dimensionality devoid of perspective and hierarchy with all elements existing equally and simultaneously. The theory is defined in broad terms and asserts that this inclination for flat aesthetic has its roots in the traditional Japanese art and the development of post-war Japanese subculture. As such, Superflat as a theory possesses a capacity to engage and explain wide-ranging conditions in contemporary Japan. Taro Igarashi has made such a point and argues that the generations of leading Japanese architects practicing today possess Superflat 'tendency' for flat aesthetics and are inclined to focus on the expressive possibilities of the building's skin. While such sensibility could simply be interpreted as a stylistic trend that has emerged over the years, when examined against the characteristics of the art movement, there exist unmistakable similarities in terms of the design sensibility and techniques applied. Furthermore, the theory has become a force in how Japanese architecture is defined and understood internationally in the past decade.

Identification of Flexion Withdrawal Reflex Using Linear Model in Spinal Cord Injury

  • Kim Yong-Chul;Youm Youn-Gil
    • Journal of Mechanical Science and Technology
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    • v.20 no.8
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    • pp.1183-1194
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    • 2006
  • The aim of this study was to identify the characteristics of the flexion withdrawal reflex modulated by the hip angle and hip movement in spinal cord injury (SCI). The influence of the hip position and passive movement were tested in 6 subjects with chronic SCI. Each subject placed in a supine position and lower leg was fixed with the knee at 5 -45 degree flexion and the ankle at 25-40 degree plantar flexion. A train of 10 stimulus pulses were applied at 200 Hz to the skin of the medial arch to trigger flexion reflexes. From results of the regression analysis, static properties of normalized muscle activation of flexor muscles have the linear relationship with respect to hip angle (P< 0.05). In order to verify the neural contribution of flexion reflex, we compared the static and dynamic gains of estimated muscle activations with measured EMG of ankle flexor muscle. Form this study, we postulate that the torque and muscle response of flexion withdrawal reflex have linear relationship with hip angle and angular velocity.

Skin Hydration Effect of Brasenia schreberi Mucilage Polysaccharide Extract (순채 점액질 다당체 추출물의 피부 보습 효과 연구)

  • Ahn, Seyeon;Gil, Soyeon;Kwon, Ohsun;Chang, Yunhee;Jin, Mu Hyun
    • Journal of the Society of Cosmetic Scientists of Korea
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    • v.43 no.3
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    • pp.223-230
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    • 2017
  • In this study, we evaluated the skin moisturizing effect of Brasenia schreberi (B. schreberi) mucilage polysaccharide on human skin and in vitro and the potent cosmetic ingredient for skin. To protect skin from various environmental stresses and aging, we should increase moisture content of skin and prevent water loss. We have found that polysaccharides extracted from mucilage of B. schreberi improved the roughness of skin with its lubricating behavior. In vitro, the expression of transglutaminase 1 (TGM1) gene, which plays a role in cross-linking the skin barrier, was increased when the keratinocytes were treated with B. schreberi polysaccharides. In addition, the expression of hyaluronan synthase 3 (HAS3) gene, an enzyme that synthesizes water-binding matrix hyaluronic acid, aquaporin 3 (AQP3), which regulates the movement of water and glycerol were also increased. In addition, an experiment to evaluate its potential as a cosmetic ingredient has shown anti-inflammatory and collagen synthesis-promoting effects. As a result, the mucilaginous polysaccharide from natural products which has not existed before, showed moisturizing effect, anti-inflammation and collagen synthesis-promoting effects for skin protection and hydration.

A study of the variations by motion of the Lower body Using 3D Body Surface Scan Data of a man in his early twenties (3차원 스캐너를 이용한 20대 남성의 하반신 신축량 분석)

  • Sohn, Boo-Hyun;Hong, Kyung-Hi
    • Korean Journal of Human Ecology
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    • v.18 no.3
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    • pp.729-740
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    • 2009
  • This study is to research on the rate of expansion or contraction according to movement of the lower body of the man their twenties using Rapid Form software. And aim of this study is to get information of ease allowance in developing slacks pattern using 3D body surface scan data through comparison with existing slacks patterns. Considering on the contraction and expansion according to movement, it need to set the more ease allowance in hip circumference than waist circumference, and the more ease allowance in back hip width than front hip width in slacks. In crotch length, the length of front crotch is revealed contraction but the length of back crotch is revealed expansion. It is desirable lowering front waist line and raising back waist line to possess ease allowance in back crotch area. The length of side seam is revealed a little expansion but the length of inseam is showed a great expansion. To develop slacks pattern of scientific approach using 3D body surface scan data, it need to analysis the rate of expansion and contraction of the lower body based on the movement, shear deformation, slip in fabrics and skin, or in fabrics and fabrics, and slip down from waist line.