• 제목/요약/키워드: human body characteristics

검색결과 941건 처리시간 0.035초

Analysis of Absorption Loss by a Human Body in On-to-Off Body Communication at 2.45 GHz

  • Jeon, Jaesung;Lee, Sangwoo;Choi, Jaehoon;Kim, Sunwoo
    • Journal of electromagnetic engineering and science
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    • 제15권2호
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    • pp.97-103
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    • 2015
  • This paper investigates the effect of absorption loss by a human body to the received signal strength with respect to on-body transmitting antenna positions in on-to-off wireless body area networks. This investigation is based on measurement results obtained from experiments performed on human bodies (male and female) using planar inverted-F antennas in an anechoic chamber. The total absorption loss by the human body is also presented through the SEMCAD-X simulations. Our investigation showed that the received signal strength becomes lower when the transmitting antenna is mounted at a specific position where more absorption loss is experienced. The statistical analyses of on-to-off body channel characteristics based on the measurement results are presented.

질병 발생의 원인과 특성에 대한 제언 (The suggestion of common cause of disease, characteristics of human body, and medical treatment)

  • 조병준;권기록
    • 대한약침학회지
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    • 제14권2호
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    • pp.81-91
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    • 2011
  • Objectives & Methods: This suggestion was attempted to be elevated the recognition of common characteristics in disease. So, we performed to analyze the correlation of common cause of disease, characteristics of human body, and medical treatment. And the results are as follows. Results: 1. The cause of disease is consist of genetic factor, aging, habit, food of not good in health, weather, environment, deficit of the physical activity, stress and so on. 2. Generally, human has common and individual weakness. Individual weakness is appeared similar to the occurrence of volcano and lapse. 3. The correlation of disease and medical treatments is possible to explain using the quotation of the law of motion made by Isaac Newton, the great physicist. 4. When the process of the medical treatment was not progressed, the prognosis is determined by the correlation of the homeostasis(H') in human body and the homeostasis(H) of disease. 5. The prognosis of disease is determined by the relationship between the energy of disease(F) and medical treatment(F'). 6. The exact diagnosis is possible to predict the treatment sequence, and the facts that homeostasis in human body and disease, relationship between the energy of disease(F) and medical treatment(F'), action and reaction are important to determine the prognosis. 7. The careful observation of improving response and worsening action of disease becomes available for exact prognosis. Conclusion: The above described contents may be useful in clinical studies, and the concrete clinical reports about this will be made afterward.

패션에 표현된 그로테스크 이미지의 미적 특성에 관한 연구 - 포스트모던 그로테스크를 중점으로 - (Aesthetic Characteristics of Grotesque Images in fashion - Focused on the Postmodern Grotesque -)

  • 박은경
    • 대한가정학회지
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    • 제41권10호
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    • pp.85-100
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    • 2003
  • The purpose of this study is to analyze the aesthetic characteristics of grotesque images in fashion specially focused on the postmodern grotesque with the relationship between body and fashion. The results are as follows: The postmodern grotesque fashion images in the years of 1990-2000 can be analyzed as trans-stylistic, trans-boundaries which have been set by the modem western white elite men group. The postmodern grotesque fashion images in the years of 1990-2000 can be categorized as 1) unclear boundaries between genders: body and dress; human being and non-human being; life and death; wholeness and fragmentation; clear body and abject body. 2) violence to the body: body mutation by simplification, exaggeration; body injury.

현대 패션에 나타난 대화식 패턴 일러스트레이션의 표션분석 - 인체표현을 중심으로 - (An Expressive Characteristics of Conversational Pattern Illustration in Modern Fashion - Focused on Human Body -)

  • 최정화;최유진
    • 한국의류산업학회지
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    • 제10권5호
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    • pp.690-701
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    • 2008
  • Fashion illustration as conversational pattern which is made up of human and daily story creates brand image and new cultural value in textile design. The purpose of this study is to analyze an expressive characteristics focused on human body in conversational pattern illustration. The method of this study was to analyze documentaries, fashion magazines and internet fashion web site. The results were as follows: The category of body expression was classified as the head, the bust, the whole body, and the others. Most of all, the head is higher frequency than any other part. The category of body type was classified as iconic reappearance and surreal fantasy. The former expressed gender images of woman and man in reality and showed high frequency of 90.41%. Above all, two types were to show the organic correlation between fashion illustration body and brand concept. The construction method of motif was classified as singleness of body, repetition of body, singleness of body and non-body mixed, and repetition of body and non-body mixed. The repetition of body showed low frequency and it was composed of regular repetition construction and irregular construction. The singleness of body and non-body mixed, showed the highest frequency and it was definitely to communicate fashion concept. In these days, conversational pattern illustration in modern fashion pattern strengthens brand identity and informs the fashion image as creative commercial art. And also, it satisfies cultural sensibility of consumer and categorizes public phenomenons in our times.

하루 중 시간변화(時間變化)에 따른 한출(汗出)의 기전(機轉)에 대한 연구(硏究) (A Study on Perspirations(汗出) in Daily Time Cycle)

  • 유정아;정창현
    • 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.

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21세기 패션에 나타난 원시주의의 표현방법과 특성 (Type of Expression and Characteristics of Primitivism in $21^{st}$ Century Fashion)

  • 김선영
    • 복식문화연구
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    • 제18권2호
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    • pp.229-244
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    • 2010
  • This study aims to discuss the type and characteristics of primitivism in the modern fashion of the $21^{st}$ century and, as a research method, the concept of primitivism as well as the transition of the patterns of primitivism expressed in modern art have been considered and reviewed through a variety of references. In particular, an empirical analysis of the works that have been created from 2000 to 2009 has been performed using domestic and overseas fashion and collection magazines. The characteristics of primitivism in modern fashion possess the following types of expression: First, Sensuality can be cited as one of the characteristics, either by using direct or indirect exposure of the human body, a silhouette which fits tightly to the body, or creating the effect of sensual beauty using animal fur or bird feathers. Second, Incantation: Masks symbolizing primitive incantation are used to cover the human face or primitive incantation is incorporated as a theme of hair accessories or fashion trinkets, etc. In addition, such decorations as tattoos and the body colorations of ancient tribes are reproduced in modern fashion by means of body painting, printing or other accessories, emphasizing the image of occult primitiveness. Third, Naturalness can be cited as one of the characteristics. Naturalness is emphasized in modern fashion not through artificial decorations and processing, but rather through different patterns of exposure by which natural purity can be felt or through the use of non-artificial materials which recalls primitive civilization. Forth, Playfulness is expressed in the form of graffiti or abstract letters and paintings, and the character of the play is often expressed by the use of grotesque images based on various distortions and exaggerations of the human body, the utilization of symbols of primitive incantation and body and/or facial painting. Fifth, Lastly 'folkishness is emphasized. Folk-like objects, facial decorations, exposure of the body and intense color contrasts typically represent the folkish characteristics.

슬랙스 설계를 위한 하지동작에 따른 체표선 변화 1 (Changes in Body Surface Lines Caused By Lower Limb Movements in Designing Slacks (I))

  • 조성희
    • 한국가정과학회지
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    • 제7권3호
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    • pp.15-33
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    • 2004
  • A precise understanding of the human form in static pose serves as the basis of designing clothing. When the human body is in motion, however, even an article of clothing designed to fit the human form in static pose can pull and change, thus restricting the body. In order to increase the fit of the clothing, which may be termed the second skin, its form and measurements therefore must be determined in correlation not only with the formal characteristics of the human body, in static pose but also with its functional characteristics in motion, as caused by the movements of the human body. In this study, the motion factor was selected as the primary basis for designing slacks with good fit in both static and moving states. By indentifying the areas in which lower limb movement cause significant changes in body surface lines, we suggest several application methods for designing slacks. Using unmarried female university students aged 18 - 24 as subjects, a total of 32 body surface categories (15 body surface lines and 17 body surface segment lines) were measured in one static and 9 movement poses. In particular, expansion and contraction levels and rates were measured and used in the analysis. The analysis first involved the calculation of the average measurement per body part in body surface line in static pose as well as of the average expansion and contraction levels and rates in 9 lower limb movements. Two-way MANOVA and multiple comparison analysis (Tukey) were conducted on movements and individual somatotypes regarding measurement per body part and expansion and contraction rates. Body parts whose measurements of body surface lines differed significantly in body surface line in static pose versus in movement were then identified. The results of this study are as follows. First, changes in body surface lines caused by lower limb movements were significant in all body surface lines of the lower trunk, both horizontal and vertical, with the exception of abdomen girth, midway thigh girth, ankle girth, hip length, and posterior knee girth. Second, significantly expanded 10 body surface lines in moving pose were detected and illustrated in table 4. These body parts should be studied in designing or pattern designing, especially for close-fitting pants, in using stretch fabric, and in sensory evaluation of good fit during movement.

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IEC60479 인체 임피던스 모델에 근거한 직류누설전류의 특성 및 검출 알고리즘 (Detection Algorithm and Characteristics on DC Residual Current based on Analysis of IEC60479 Impedance Model for Human Body)

  • 김용중;이진성;김효성
    • 전력전자학회논문지
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    • 제23권5호
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    • pp.305-312
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    • 2018
  • DC distribution systems has recently taken the spotlight. Concerns over human safety and stability facility are raised in DC distribution systems. Std. IEC 60479 provides basic guidance on "the effects of shock current on human beings and livestock" for use in the establishment of electrical safety requirements and suggests an electrical impedance of the human body. This study analyzes impedance spectrums based on the electrical equivalent impedance circuit for the human body; human body impedances measured by experiments are analyzed below the fundamental frequency (60 Hz). The analysis shows that the equivalent impedance circuit for the human body should be modified at least in low-frequency range below the fundamental frequency (60 Hz). The DC residual current detection method that can classify electric shock accidents of humans and electric leakages of facilities is proposed by applying the analysis result. The detection method is verified by experiments on livestock.

시트 동특성을 고려한 인체 진동 해석 (Human Body Vibration Analysis under Consideration of Seat Dynamic Characteristics)

  • 강주석
    • 한국산학기술학회논문지
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    • 제13권12호
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    • pp.5689-5695
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    • 2012
  • 본 연구에서는 차량에 적용되는 시트 재질인 폴리우레탄 폼의 점탄성 특성을 고려하여 시트와 인체의 진동특성을 시험 및 수치해석 방법을 이용하여 분석하였다. 압축 시험을 통해 폴리우레탄 폼의 점탄성 특성인 비선형성과 준-정역학적 특성을 구하였다. 또한 컨벌루션 적분법 및 비선형 강성 모델을 이용하여 폴리우레탄 폼의 점탄성 특성을 수학적으로 모델링하였다. 시트의 승차감 기여도를 분석하기 위하여 시트의 동역학 모델과 ISO5982의 표준 인체 수직진동 모델을 이용하여 수직 진동모델을 구성하고 관련 운동방정식을 유도하였다. 비선형 운동방정식은 Runge-Kutta 적분법을 이용하여 수치해석 시뮬레이션을 수행하였다. 철도차량의 차체 바닥에서 측정한 진동가속도 입력에 대한 시트와 인체의 응답 특성을 분석하고 시트 설계 파라미터에 대한 승차감 지수 값들의 변화를 분석하여 시트 설계에 대한 방법론을 제시하고자 한다.

남자 고등학생의 드롭별 인체 특성에 관한 연구 (A Study on the Body Characteristics of High School Boys According to Their Drop Types)

  • 현은경;남윤자
    • 한국의류학회지
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    • 제34권8호
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    • pp.1233-1241
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    • 2010
  • This study analyzes the body characteristics of high school boys according to 3 different body types in order to improve the fit of upper garments. First, among the lateral body types, the straight body type was selected from the SizeKorea 3D scanned data and 2D measurement data. Second, high school boys (classified as straight lateral body type) were grouped into type B, A, and Y drop groups. The percentages of type B, type A, type Y are 17.8%, 48.1%, 32.1% respectively. The characteristics of the body types were analyzed. While the bust circumference were the same among the three body types (chest width, back width, back across shoulder, and bust width did not show a significant difference); however, waist and hip measurements showed a significant difference among the three body types. Third, the height of the high school boys ranged between 165cm and 180cm and the bust circumference between 85cm and 97cm. For the bust size categories, type B and type Y are distributed similarly; however, type A is distributed in the smaller bust size categories.