• 수면정신생리
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• 제23권2호
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• pp.47-52
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• 2016

Changes in core body temperature are closely related to initiation and maintenance of sleep, and are influenced by various factors such as air temperature, room temperature, clothing, human activities, and medications. These factors are closely related to sleep fragments, insomnia and other sleep disorders. Understanding the effect of the temperature related to human surroundings on the core body temperature and sleep, will be useful for understanding the physiology of sleep and to treat sleep disorders.

• 대한인간공학회지
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• 제22권1호
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• pp.1-15
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• 2003

The resonance behaviour needs be understood to identify the mechanisms responsible for the dynamic characteristics of human body, to allow for the non-linearity when predicting the influence of seating dynamics, and to predict the adverse effects caused by various magnitudes of vibration. However, there are currently no known studies on the effect of vibration magnitude on the transmissibility to thoracic or lumbar spine of the seated person, despite low back pain(LBP) being the most common ailment associated with whole-body vibration. The objective of this paper is to develop a proper mathematical human model for LBP and musculoskeletal injury of the crew in a maritime vehicle. In this study, 7 degree-of-freedom including 2 non-rigid mass representing wobbling visceral and intestine mass, is proposed. Also, when compared with previously published experimental results, the model response was found to be well-matching. When exposed to various of vertical vibration, the human model shows appreciable non-linearity in its biodynamic responses. The relationships of resonance for LBP and musculoskeletal injury during whole-body vibration are also explained.

• 한국생활과학회지
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• 제15권4호
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• pp.631-646
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• 2006

The purpose of this study is to find out its effect on wearers' impression formated by combination of their body type with neutral tone clothing. The experimental materials developed for this study are a set of responses to stimulus in scales(7-point semantic). 45 pictures used as stimulus are, through computer simulation, manipulated to five wearers' body type and nine neutral tone wear. The subjects are 276(?) female undergraduate students in Kyung-nam area. Factors on wearers' impression suggested as responses to the stimulus consist of 5 different demensions (Tenderness, Cuteness, Attractiveness, Elegance, Intrepidity). The results of this study are as follows: first, combination of their body type with neutral tone wear significantly affects the formation of wearers' impression in the factor of Tenderness, Attractiveness, and Intrepidity (?); to the factor of Attractiveness, wearers' body type is rather more related than wearers' neutral tone wear is. Second, the harmony of their body type with neutral tone wear has a significant effect on wearers' impression in the factor of Cuteness. According to those results, the combination of wearers' body type with neutral tone wear has significant effects on the formation of wearers' impression.

• 한국생활과학회지
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• 제23권6호
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• pp.1205-1215
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• 2014

The purpose of this study was to investigate the effect of local heating and cooling of various body parts on the skin temperature of the exposed extremities including neck. Hot pack was used to warm up the body of seven participants for 15 minutes and it was removed as the temperature of the hot pack decreased after 15minutes of warming. Thermograms of body surface with and without hot pack were analyzed intensively to observe the efficiency of the local heating of shoulder, abdomen, back waist, and foot on the skin temperature of ten area of the subjects' body. The results indicated that the absolute skin temperature of front upper arm and thigh was significantly higher depending on the area of heating, especially, in case of abdomen and foot heating, which was not observed at the back of the body. The rate of skin temperature of extremities such as finger, palm and foot was significantly different depending on the body area of local heating. Generally, it was found that back waist heating was not efficient to warm up and maintain the skin temperature of the body after removing the hot pack.

• 한국주거학회논문집
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• 제3권1호
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• pp.85-92
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• 1992

A floor system have played a major part in the living in Korean house. It is an essential element in the residential houses. Uufortunately, a design method of the floor heating system for the human thereat comfort has not established in Korea system. This paper aims to review the previous researches to find the issue for the futher study of comfort floor heating design. The following results were obtained: 1) Nevins et at conducted experiments on the effect of the comfortable of floor and air temperatures on the psychological responses by a large number of subjects. Its objective was to find the combined condition to obtain thermal comfort for sedentary posture.7here has never been researches regarding a sitting Person on the heated floor. 2) Some investigation in Japan on the effect of floor heating system on a sitting person on the floor have been conducted for these years, but they are net based on the human heat balance but on only psychological responses. 3) Hirayama et al developed an indication method of the effect of heat conduction on the sedentary person.4) There are few researches on the human thermal comfort compared whth indoor environmental researches on mechanical controls in Korea. Thus, the further study on the followings in needed the estimaiing of heat conduction between tile hunman body and a floor, developing an index expressed the combined effect of convection, radiation and conduction and its associated experiments.

• Environmental Analysis Health and Toxicology
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• 제2권1_2호
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• pp.43-53
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• 1987

Among the environmental toxic metals, cadmium and lead compounds are very hazard for human health because these may affect the biological function of human body and furthermore enhance the cause of various disease. In recent years, as the view of environmental toxicology, the combination of toxic metals suffering human health is especially significant cadmium chloride (10 mg/kg P. 0., 1 mg/kg I.P.) and lead acetate (20 mg/kg P.O., 2 mg/kg I.P.) were administered to rats for 4 weeks on alternate days and then examined the effect of these on body weight, tissue weight and also biochemical function in blood and tissue were investigated and comparision of the two experimental groups such as single and combined administration. According to the results of this experiment, accumulation of heavy metals increased and biological metabolic function grew worse but, in tissue, toxic effect decreased by combined administration and intraperitoneal administration was more toxic than per OS.

• 혜화의학회지
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• 제12권1호
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• pp.103-121
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• 2003

Human being can't live without nature, then the changes of nature affect human body. It means that human body has corresponding changes to the KI(vital energy) of nature. There is a stream of changes in human body which circulate mysteriously and punctually by the laws of nature. If this stream of changes fits into human's life style, it would be most effective. It has a certain mode continuously. So if a person has a habit fitting into it, he will get the healthiest body. Then the researcher tries to explain the changes in human body by the time, mainly focused on within 24 hours. it is showing not only the oriental view, but also the western's. The researcher can find the coincidence as followings. At In-Si(3-5 am), the body function and the body temperature get to the bottom, therefore it's good for him to wake up and to run the vital energy. At Sa-Si(9-11 am), the patience on pain anxiety and the psychic concentration get to the top, he'd better start the work. At O-Si(11am-1pm), the heart energy has a vital move, then the blood concentration of Hb(hemoglobin) gets to the top. At Mi-Si(1-3 pm), the muscle strength, the squeeze, and the breathing rate increase. The reflex nerve sensitivity gets to the top. Creativity, observation, and working efficiency go high, so it's time to work hard. At Hae-Si(9pm-1am), the body function falls, sleeping is needed. At Chuck-Si(1-3 am), the cell spontaneity gets to the top, immune lymphocyte moves actively, and the blood concentration of growth hormone gets to the top. These are liver's work. In west, there has been active studies on how to reduce the side effect by using a person's bio-rhythm based on the 'time treatment', and how to reorganize the bio-rhythm by using the machine and the age resistance based on the 'bio-watch'. Though the 'time treatment' means something, the artificial resistance on bio-rhythm seems to give bad effects to human body. If a person lives by regimen of oriental medicine, he will maintain the healthiest body. Regimen is that human body follows the laws of nature, and moves its mysterious, Punctual and periodical changes.

• 한국생활과학회지
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• 제13권6호
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• pp.1007-1021
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• 2004

The purpose of this study is to find out the effect of wearers' body types and clothes' neutral tone combination on impression formation. The experimental materials developed for this study are a set of stimulus and response scales(7-point semantic). The stimulus include 45 pictures manipulated by computer simulation in wears' body types and neutral tone variation. The subjects are 540 female undergraduate students in Gyeong-nam. The results of this study are as follows: Impression factor of the stimulus consisted of 5 different dimensions including tenderness, cuteness, attractiveness, elegance, intrepidity. Each impression of neutral tone combinations, along with wears' body types, had a significant effect on tenderness, attractiveness, and intrepidity. Especially, it had the strongest effects on attractiveness. Each impression of wearers' body types along with neutral tone combinations affected cuteness significantly. According to the fact above, wears' body types and neutral tone combination have a significant influence on the impression formation of wearers.

• The Journal of Korean Physical Therapy
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• 제13권3호
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• pp.637-642
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• 2001

Hershel found out Infrared for the first time, in the Industrial Revolution the Infrared and FlR had been begun to use making products. FIR with low temperature can deeply penetrate on the human body composed things without troublesome. since FIR has effectively operated on the human body at low temperature (35-40$^{\circ}$C). When FIR penetrated on the human body, it would inhibit the abnormal genes and cells expression, and then information of DNA and RNA would be reexpressed for arranging DNA and RNA abnormal state. As FIR's receptors in the body, it colud be presumed that N-glycosyl linkage of purine and deoxyribose, RNA splicing process. and Heat shock protein. To radiate optimized FIR, in this study, we made the FIR radiation compound and instrument for unharming biological things. According to the results, the FIR radiation to E. coli., it did not induce genetic mutations and change the survival rate of E.coli.

• 한국정밀공학회지
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• 제23권7호
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• pp.159-167
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• 2006

The impact time history of human body with K2 rifle on stand shooting posture is analyzed and compared with experimental results. Analysis model is Korean 50% tile of twenties and height, weight is 174 cm, 62 kgf respectively. The muscle and bone human model of Korean man's twenties 50% tile is applied. ADAMS program is used for kinematic analysis and human model is developed by Life Mod program. The effect of the ground support condition, grip position and human weight factor are studied. Maximum impact force of shoulder is 784 N. The horizontal displacement of K2 rifle muzzle is 2.9 cm.