• 한국소음진동공학회논문집
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• 제12권8호
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• pp.626-631
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• 2002

A modified equation for the evaluation of discomfort of a seated human body exposed to differential vibration at the seat and the floor was proposed in this paper. Through the review and analysis of the preceding studies, effect of phase difference between the seat and the floor vibration on discomfort were quantitatively identified. The phase effect was shown to be governed by not only phase difference between the two vibrations but both their frequency and the magnitude, which means the present equation for the evaluation of perceptual amount of vibration provided by ISO 2631-1 should be modified. The proposed equation was developed such that the correction function was multiplied to the present equation. The correction function consisted of three parts, each of them represented the effect by phase difference, frequency and vibration magnitude on discomfort respectively.

• 한국전자파학회논문지
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• 제25권2호
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• pp.137-148
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• 2014

본 논문에서는 인체 부착형 Ultra-Wideband(UWB) Multiple-Input Multiple-Output(MIMO) 안테나를 제안하고, 인체의 영향을 고려한 안테나 성능과 인체에 미칠 수 있는 영향에 대한 분석을 하였다. 제안된 안테나는 사각 모노폴 형태의 두 안테나와 격리도 특성을 개선하기 위하여 안테나 사이에 위치한 plunger형 isolator로 구성되어 있다. 안테나의 근거리장에 인체가 존재할 때, 인체가 안테나에 미치는 영향을 분석하기 위하여 시뮬레이션과 측정을 수행하였다. 측정 결과, Specific Absorption Rate(SAR) 값은 공급전력 0.5 mW에서 안테나 1, 2 각각 0.132, 0.08 W/Kg으로 1 g 평균 전자파 흡수율을 1.6 W/kg으로 제한한 FCC 지침을 초과하지 않음을 알 수 있다.

• International Journal of Advanced Culture Technology
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• 제8권3호
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• pp.307-315
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• 2020

The physique and health status of Chinese college students have received a generous concern in recent years. The physical condition of Chinese college students is not good and this phenomenon is especially obvious among female college students, which has been an disputable fact. This study starts from exercise intervention to study the concrete influence of taijiquan (a kind of traditional Chinese shadow boxing) and five-animal exercises on human body balance ability; the study uses experimental apparatus to measure the specific impact of exercise intervention on human body balance ability; meanwhile, the study also applies data analysis to longitudinally study whether the two studied sports items affect body balance, and whether there is difference in terms of the influence of two sports items on human body balance ability. The conclusions are as follows: firstly, 24-style taijiquan and five-animal exercises can improve ankle muscle strength, and the focus and degree of the improvement are different; secondly, five-animal exercises have a better improvement effect on the flexor and extensor muscles of ankle joint and 24-style taijiquan is in the second place. Moreover, compared with 24-style taijiquan, there is no significant difference in terms of the improvement caused by five-animal exercises; thirdly, 24-style taijiquan has a better effect on the improvement of internal rotation and evertors muscle strength. Compared with 24-style taijiquan, five-animal exercises have no significant difference in terms of the improvement degree.

• 대한한의학원전학회지
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• 제22권3호
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• pp.271-289
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• 2009

This thesis intend to help the eastern medical doctor to understand body condition from interpretation of perspirations(汗出) in daily time cycle. The conclusion is followed. 1. In most Eastern Medical classic and clinic literatures, the time of fever and perspirations are described as a result of disease's position at human body. Following this description, in daytime the perspirations must come from the Gi phase and night time the perspirations must come from the blood phase. Because in daytime the skin pores are opening and the defensive Gi is going out to the superficial portion of the body. In night time the skin pores are shutting and the defensive Gi is going in to the five solid organs. So a sweat in daytime comes out from the Gi phase and superficial portion of the body. And in night time comes out from the blood phase and five solid organs. But in recent real clinic cases, in daytime, there are so many perspirations from the five solid organs. Comparatively, the perspirations from the superficial portion of body are very little. And in same daytime perspirations, when the heat pathogens mixed with moist, the symptom revelation time delay to the afternoon. Therefore it can be concluded that the time of perspirations are combination of disease's Gi or blood phase and characteristics of pathogens. The position of disease at human body cannot simply judge the symptom revelation time. 2. The exchange of climate following time cycle of a day effect to the condition of human body. At same time it activates or not activates the pathogens in human body. So we can consider the kinds and characteristics of pathogens by distinguishing the symptom revelation time. In general differentiation of syndromes[辨證] pathogen's kinds and location are generally judged. By understanding the characteristics of pathogen, doctor can devise more correct and delicate prescription.

• 복식
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• 제43권
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• pp.41-52
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• 1999

This study is to compare and analyze two types of 'transparency' concept expressed in architecture and garment which has not only been an important theme in the post-modern expression of architeture but been shown in various types of concept. This study examined the characteristics of transparency and through theoretical studies divided them into four types; frankness(purity ambiguity comparison exposure and eroticism) Purity building would use the matrial which is transparent glasses for the expprssion of its purity and clothing would use the transparent matrial for the expression of the natural beauty of human body and the purity of human of itself. Ambiguity is expressed in the outer side of architecture by duplicating transparent materials and by phenomenon of optical illusion and inflection. On the contrary in garment it is shown in the outward formation of underclothing. Comparison in architecture is expressed by the use of void but opaque materials as well as solid but transparent materials. Extinction is expressed with the visual effect of context of the surrounding by the use of opaque glass and reflexive glass. In garment the effect of comparison is expressed by the use of mixing transparent materials and opaque materials. Building would express the inside of itself by the way of its exposure and clothing would also express its frankness through the human body is partly opened or clossed at the same thime that arises from eroticism of the way of the expression of human feelings.

• International Journal of Automotive Technology
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• 제7권1호
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• pp.35-41
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• 2006

Driving simulations were performed to evaluate the effect of providing both visual information and body sensory information on changes in steering characteristics and the amount of perspiration in drift cornering. When the driver is provided with body sensory information and visual information, the amount of perspiration increases and the driver can perform drift control with a moderate level of tension. With visual information only, the driver tends to easily go into a spin because drift control is difficult. In this case, the amount of perspiration increases greatly as compared with the case where body sensory information is also provided, reflecting a very high perception of risk. When body sensory information is provided, the driver can control drift adequately, feeding back the roll angle information in steering. The importance of the driver's perception of the state of the vehicle was thus confirmed, and a desirable future direction for driver assistance systems was determined.

• Journal of Ginseng Research
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• 제19권1호
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• pp.1-16
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• 1995

Effects of Korean red ginseng (KG) and western ginseng (WG) on body temperature, pulse rate, clinical symptoms and hematological changes in human were studied after administration p.o. with Korean red ginseng and western ginseng for 10-days. KG was more effective in keeping homeostsis in than western ginseng in the changes of body temperature and pulse rate. KG was more effective in low body temperature and SOEVMIN (소음인), while inducing tachycardia especially in SOYANGIN (소양인) and TAEEUMIN (태음인). WG tended to drop temperature abruptly and also descended pulse rate with greater range than KG. KG and WG could cause side effects such as headache and gastrointestinal syndromes and induce hypertension or hypotension abruptly in specific constitutions. However, KG and WG did not cause abnormal changes in urinalysis and hematology.

• 대한기계학회:학술대회논문집
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• 대한기계학회 2007년도 춘계학술대회A
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• pp.1063-1068
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• 2007

개인마다 소음, 음악과 음향진동 자극에 대한 인체의 반응은 상당한 차이가 발생하는 것을 고려하여 뇌파 파워의 상대적인 비율로 비교.고찰하였다. 우선 강한 소음 자극에 대한 뇌파의 변화는 긴장과 스트레스 증가를 의미하는 베타파의 증가 및 긴장완화와 안정을 의미하는 알파파의 감소를 보였고, 좋은 자극에 대해서는 그 반대의 효과를 보였다. 즉, 좋은 자극에 의한 스트레스저감의 효과가 있음을 확인하였다. 자극 후의 변화에서는 좋은 자극시와 마찬가지로 대체로 알파파가 증가하는 경향이 있지만 이와 반대의 경우도 발생하고있어 이 역시 개인차가 있음을 알았다.

• 한국마린엔지니어링학회:학술대회논문집
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• 한국마린엔지니어링학회 2011년도 후기공동학술대회 논문집
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• pp.97-98
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• 2011

This paper is about the study of a new exo-skeleton device applying a gravity compensator. The exo-skeleton devices is to reduce the external torque applied to the human body joint for the purpose of helping the disabled, reducing heavy payload for industry workers or military soldiers. Most of the exoskeleton devices are actuated by the motors, but motors are limited in energy such that a short durability is always a big problem. In this paper, an exoskeleton device using a new gravity compensator based on a torsion bar is proposed to reduce the torque load applied to human body joints. The exoskeleton device is designed for the lower body of human. Analyses on the torsion bar spring and link of the exoskeleton device using FEM method were performed. To reduce the applied torque to the human joint, a torsion bar gravity compensator is applied to the exoskeleton. The effect of the torsion bar compensator for the exoskeleton device was verified through load test using developed test equipment.

• 대한인간공학회지
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• 제22권1호
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• pp.57-67
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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.