• Title/Summary/Keyword: Human-body effect

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The Prediction of Allowable Limit Distance about Human Body by Vibration Regulation (진동 규제기준에 따른 인체의 허용 한계거리 예측)

  • Song, Jeong-Un;Hong, Woong-Ki;Kim, Seung-Kon
    • Journal of Environmental Impact Assessment
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    • v.21 no.2
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    • pp.289-296
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    • 2012
  • The shock vibration such as machine vibration, blasting vibration etc. has effect on nearby structure as well as human body. The purpose of this study is to predict allowable limit distance of vibration about human body. First of all, vibration velocity such as PPV, PVS was measured by shock vibration experiment, and vibration level was calculated by conversion formula of vibration velocity. And then, allowable limit distance was analyzed by converted vibration level. The results are as follows : Firstly, the correlation coefficient of converted vibration level was over R=0.94, and vibration level caused by PVS was usually represented to high curve line. Secondly, the cross point of vibration level between ground and concrete condition was represented to 66.68dB(V), and allowable limit distance was represented to difference over three times when vibration regulation was raised from 65dB(V) to 80dB(V).

The Characteristics on the Hair Growth Using Diathermic Adjustable High-Frequency Generator (심부투열용 가변형 고주파 발생기를 적용한 발모 촉진 특성)

  • Shim, Ji-Young;Hong, Ji-Tae;Kim, Ho-Sung;Kim, Hee-Je
    • Proceedings of the KIEE Conference
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    • 2007.07a
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    • pp.1896-1897
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    • 2007
  • Medical equipment of high frequency has been presently applied to various parts of human body and novel treatment effects have been shown by it. Recently there are many cases that high frequency apparatus has been used in dermatology as the interest in beauty has been growing. Especially used in skin, blood volume is increased by keeping surface temperature of skin at around $43^{\circ}C$ and domodex folliculorum are treated by applying high electric field. It is the aspect we consider that increasing blood volume and domodex folliculorum treatment take effect on hair loss. In this study, high frequency electrotherapy apparatus was proposed to be applied to hair loss treatment. For that, human body was experimented with varying output voltage and frequency. The adjustable switching signal for treatment was obtained from 100[kHz] to 1000[kHz] by using DSP. Stable output specific was also obtained by feedback control to protect human body. The best hair growth conditions were the output voltage of 1.2[kV], the frequency of near 300[kHz] and the maximum current of 2[mA]. We apply this high frequency electrotherapy apparatus to two bald men, 46-year-old and 45-year-old. After treatment for a month they had thick and strong hair.

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Temperature Measurement for the Human Head under Local Exposure of Electromagnetic Wave with 800MHz (800MHz대의 전자파에 노출된 두부의 온도 측정)

  • Park, Ju-Tae
    • Journal of the Korean Institute of Telematics and Electronics T
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    • v.36T no.2
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    • pp.70-76
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    • 1999
  • With the recent increase in the use among young children of portable telephone public concern regarding potential health hazards due to a hot spot appearing inside the infant head, has been growing. Since the biological hazards due to RF exposure are caused mainly by a temperature-rise in tissue, the effect of localized SAR for portable telephones should also be related to the temperature-rise in the human head. In this paper, it was measured that in the actual use of portable telephone the temperature of the local tissue in the human-head change. As a result, it should be noted that the mean temperature of human-body and localized tissue is rising from beginning call. However the temperature variation of localized tissue is recovered rapidly as normal temperature, although the mean temperature of human-body rising continuously at ending call of portable telephone.

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Effect of Ondol on Physiological Responses during Sleeping (IV) (온돌환경이 수면시의 생리반응에 미치는 영향 (제4보))

  • Lee, Soon-Won;Kweon, Soo-Ae
    • Korean Journal of Human Ecology
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    • v.7 no.1
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    • pp.183-195
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    • 1998
  • The purpose of this study is to investigate the effect of Ondol on the bedclimate, microclimate and physiological responses of occupants. Four healthy female subjects slept for seven hours in thermal environment of detached house and apartment respectively. Their bedclimate, microclimate, skin temperature, weight loss of body, weight of bedcloth and sleepwear, body movement and subjective sensation were measureed for this study. The results were as follows; The differences of bedclimate, microclimate, skin temperature were significant according to season and residence styles. The occupants of the detached house showed higher temperature and humidity inside quilt and clothes than those of the apartment did on apartment environment. The occupants of the detached house showed higher weight losses of body, heavier weights of quilt than those of the apartment did on apartment environment in the spring, autumn and winter, lower weight losses of mattress in the autumn and winter. The occupants of the detached house moved more than those of the apartment on apartment environment when sleeping. The occupants of the detached house felt higher thermal sensation and lower humidity sensation than those of the apartment did. The occupants of the detached house felt more comfortable than those of the apartment on detached house environment, while the occupants of the apartment felt more comfortable than those of the detached house on apartment environment. The thermal environments of the apartment and the detached house had an effect on the bedclimates, microclimates of occupants and therefore the physiological responses such as skin temperature, rectal temperature, weight loss of body, perspiration and subjective sensation are different during sleeping according to their residential styles on the same environment.

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A Study of the Devil′s Types and the Special Effect Makeup′s Techniques Expressed on Horror Movies (공포영화에 나타난 악마의 유형과 특수분장 기법에 대한 연구)

  • 장미숙;양숙희
    • Journal of the Korean Society of Costume
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    • v.53 no.8
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    • pp.21-37
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    • 2003
  • The purpose of this paper is to be studied the Devil's types and the special effect makeup's techniques expressed on horror movies. As the theoretical background, the researcher inquired the origin of Satan, Demon and Devil, and the shapes and meanings portrayed in the religion, philosophy art and literature. Also classified the Devil's types of the movies, and examined the factors, techniques and aesthetic characteristics of special effect makeup for each of them. The results are as follows. 1. The Devil's types are the Werewolf, the Zombie and the Vampire. The Werewolf is a kind of Devil that changes into a wolf when the full moon rises. It requires animatronics, rubber body suits, furs and fangs for special makeup effects. The Zombie is a dead body that the exorcist restored with a narcotic drug, and it nibbles on human's brain and flesh. So it needs decayed or pale skins, scars, bald heads, non-focus eyes and false teeth for making this character. The Vampire is a bloodsucking ghost. Therefore, it uses fangs, evil eyes, rubber body suits and dropping blood for special effect makeup. 2. They expresses Sadism, Masquerade and Cruelty as the aesthetic characteristics of the Devil's special effect makeup.

The effect that the composition handling of aromatherapy and abdominal massage treatment reaches the middle-aged woman's body ingredient transformation (향요법과 복부마사지의 복합처치가 중년 여성의 체 성분 변화에 미치는 영향)

  • Kim, Yean-Sook
    • Korean Journal of Human Ecology
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    • v.17 no.6
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    • pp.1225-1236
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    • 2008
  • The purpose of this study is to determine the effect of aromatherapy, showing how the composition handling of aromatherapy and abdominal massage treatment reaches body ingredient transformation. The subjects for this research were total 18 middle-aged females in Seoul; aroma massage group of 7 females, aroma inhalation and water bathe group of 5 females, abdominal massage group of 6 females by jojoba oil without any medical effect. This clinic trial was held from July 1, 2008 to Aug.14, 2008. I held this clinic trial under the same condition after and before this clinic. A standard tape and OLYMPIA 3.5 of S hospital were used at the body measuring for subjects after and before clinic trials. I got Average and standard deviation by data analysis by SPSS Win. Ver.14.0. I did paired t-test for the comparison of before and after, and repeated measure ANOVA for between two groups or among three groups'. The verification was held Duncan Test. The results of this study were as follows: 1. Body mass quotient (F=2.86, p= .063) and Body region (F=1.34, p= .279) among three groups showed no meaningful difference, but weight meaningful difference and aroma massage group showed the greatest difference of body measure change quantity. 2. In change quantity of abdomen girth, Waist circumference and WHR, abdomen girth (F=4.56, p= .012) and Waist circumference (F=4.37, p= .031) showed a meaningful statistical difference. The result of subsequent inspection showed that there was a meaningful difference among three groups and aroma massage group was best. 3. In Cell quantity, Body region quantity and Muscle volume, Body region quantity (F=2.76, p= .182) and Muscle volume (F=3.12, p= .054) showed no difference, but Cell quantity (F=3.79, p= .040) showed a meaningful difference. In the comparison of three groups there was no difference, but aromatherapy group showed more change quantity than any other group. According to the result of this study, the composition handling of aromatherapy and body massage was effective in the decrease of Abdominal fatness and Waist circumference, Weight and the increase of Cell quantity. so I suggest that woman use this therapy in the program of obesity management for her health improvement.

The Change of Garment Pressure and Body Measurement by Material of Women's Girdle

  • Park, Jee-Hye;Chun, Jong-Suk
    • Journal of the Ergonomics Society of Korea
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    • v.31 no.3
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    • pp.455-461
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    • 2012
  • The aim of this study was to investigate the appropriate elasticity of the textile material used for making women's girdle. Background: The elastic textiles have been used for making girdle. The hard type girdle gave high pressure on the body to make slim look. However, excessively high garment pressure caused negative effect to human bodies. This study studied the material giving proper garment pressure in girdle. Method: In this study five experimental girdles were made fabrics with various elasticities. The change of garment pressures and body girths were measured after subjects wearing the experimental girdles. The garment pressure was measured at 10 points. Body girths measured at abdomen, hip, and thigh. Results: The garment pressure of the commercial girdle was high at side of waistband, side femur and back gluteal fold. The experimental girdles made with high elasticity material definitely lowered garment pressure at those points. After wearing experimental girdle their abdomen and hip girths measurements were decreased. But, thigh girth was not reduced. Conclusion: The girdle made with excellent elasticity materials reduced garment pressure significantly and it made body slim as much as the commercial girdle except the thighs. Application: This study provides guideline for the developing girdle that applying optimum range of garment pressure with body slim effect.

Saengmaeg-san as an ergogenic aid: improving exercise performance

  • Kwak, Jae-Jun;Yook, Jang Soo;Jeong, Woo-Min;Kim, Ji-Sun;Ha, Min-Seong
    • Journal of the Korean Applied Science and Technology
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    • v.37 no.5
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    • pp.1314-1322
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    • 2020
  • Sports drinks help optimize and improve performance by delaying and eliminating the buildup of fatigue-causing substances in the body during exercise. Saengmaeg-san is a nature-friendly traditional beverage that has no side effects on the human body and can quench thirst. However, studies on the relationship between exercise ability and Saengmaeg-san are insufficient. The purpose of this study was to prescribe Saengmaeg-san during the summer training period of 4 weeks and to analyze the effect on body composition and exercise performance. Seventeen male participants were divided into 3 groups (Saengmaeg-san acid intake group [n=9], placebo group [n=8]), and body composition (height, weight, muscle mass, fat mass, BMI) and conducted exercise performance (total exercise time and HRmax). In our study, Saengmaeg-san intake had a positive effect on exercise performance, such as decreased body fat percentage, increased exercise time, and decreased HRmax. Therefore, Saengmaeg-san showed the potential as a sports drink. In the future, additional studies on fatigue-related substances, immune function-markers, and blood lipids are needed in order to clearly explain the change in exercise performance due to consumption of Saengmaeg-san.

Factors Influencing Body Image in the Aging Process

  • Oh, Keun-Young;Damhorst, Mary Lynn
    • International Journal of Human Ecology
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    • v.9 no.2
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    • pp.55-65
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    • 2008
  • This study examined the personal and relational factors influencing the formation of body image among older persons. Aging-rel£lted physical changes, health, marital relationship, cognitive age, and moods were personal and relationship factors explained for influence on the body image of older persons. Data were collected via a mail survey of older married couples residing in three US. metropolitan areas of Florida. A total of 94 married couples who were 60 years older participated in this study. Results indicated that aging-related physical changes, effect of physical changes on the self, self-assessed health, and evaluation of spouse's attractiveness, and perceived attractiveness (one's perception of the other spouse's appraisals of his or her attractiveness) were found to be significantly related to the body image of older men and women. For men, self-assessed health, evaluation of spouse's attractiveness, and perceived attractiveness were significantly related to body image while physical changes, effect of physical changes, and perceived attractiveness were found significant for women. The feelings of older persons about and satisfaction with their bodies and appearance were estimated by aging-related and relationship-related variables.

Apoptotic effect of formaldehyde in cultured human hepatocyte cell lines (인간 간세포주 에서 포름알데히드에 의한 세포 사멸 효과)

  • Park, Soo-Hyun
    • Korean Journal of Environmental Agriculture
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    • v.28 no.4
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    • pp.462-467
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    • 2009
  • Exposure of formaldehyde (FA), one of the major compounds in pesticides and in the onset of sick house syndrome, has been implicated in the development of diverse diseases. Liver is a very important organ to body metabolism and drug detoxification. Apotosis of hepatocytes is associated with the onset of liver diseases such as hepatitis. However, the apoptotic effect of FA in hepatocytes is not clear. Therefore, this study was conducted to investigate the effect of FA on the apoptosis in HepG2 cells, a human hepatocyte cell line. As a result, FA (> $500\;{\mu}M$) decreased cell viability and increased lactate dehydrogenase activity in HepG2 cells, which was blocked by the treatment of vitamin E and N-acetylcysteine (NAC). In addition, FA decreased glutathione (GSH) contents and Bcl-2 levels, while increasing lipid peroxide formation and Bax levels. It also cleaved caspase-3 form, which was blocked by the treatment of vitamin E and NAC. It is insisted that FA induced apoptosis via oxidative stress in human hepatocytes.