• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2011년도 춘계학술대회 논문집
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• pp.43-48
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• 2011

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2011년도 춘계학술대회 논문집
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• pp.1407-1408
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• 2011

• 대한수의학회지
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• 제15권1호
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• pp.9-13
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• 1975

In oder to investigate the effects of cobalt-60 gamma irradiation on the postnatal body gains and the other influece of the pregnant mice were subjected to single whole-body gamma irradiation externally. The results obtained were as follows: 1. The all mice of 400, 600, and 800 Rads gamma-irradiated groups showed abortion after prenatal gamma irradiation within 4 to 9 days. 2. There were significant differences of the postnatal body gains of mice between the control and treated groups (100 Rads and 200 Rads gamma irradiation). 3. The relation between gamma-irradiated doses and the postnatal growth rates of mice were inversly proportional.

• 한국웰니스학회지
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• 제7권2호
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• pp.101-111
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• 2012

The benefits and risks of whole body vibration (WBV) based acceleration training on the human body have been documented for many years. WBV training has been shown to increase muscular strength, explosive power, bone strength, performance, mobility, cardiovascular function, circulation and anabolic hormone level and so on. The purpose of this review is correct understanding and application of WBV training. Without proper understanding, rather, to apply WBV to the human body can be fatal harm, and therefore know that what is vibration and has advantages and disadvantages. If there is anything positive side there is bound to the negative aspects. In this regard, WBV training can have a positive impact on the already confirmed by several studies and also, there have been scientifically proven. But still we are part of a scientific approach that is acceptable even to keep in mind that you will always coexist. Once again, the effect of WBV with a physical stimulus that risk and should be remembered. In addition, given the momentum and how to exercise and well-being well aware that vibration exercise as a way to think of how not to be familiar with.

• 핵의학기술
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• 제15권1호
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• pp.3-9
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• 2011

이중에너지 방사선 흡수계측법(Dual-energy X-ray Apsorptiometry, DXA)은 일반적으로 골밀도를 통한 골다공증 평가 및 치료목적으로 이용되어 왔으며 최근 비만에 대한 관심이 높아지면서 체지방검사 처방이 증가하고 있는 추세이다. 기존의 체지방 측정은 전신을 검사해야만 평가가 가능했지만 근래 DXA장비의 소프트웨어가 향상 되면서 요추와 대퇴부의 측정만으로도 전신체지방률을 추측 할 수 있게 되었다. 전신측정이 아닌 부분측정 값이 다른 검사방법으로 산출된 값과 비교하여 타당성을 갖는지 생체전기저항측정법(Bioelectrical Impedence Analysis, BIA)과 체질량 지수(Body Mass Index, BMI)와의 상관도 분석을 통해 알아보고자 한다. 2010년 3월부터 8월까지 본원 건강검진센터에 내원한 수검자 중 40세 이상의 여성 90명을 대상으로 DXA와 BIA를 통해 체지방률을 측정하였다. BMI는 신체 계측기를 통해 측정된 신장과 체중을 수검자 정보에 기입하여 자동으로 산출되는 값을 활용하였다. 또한 체중에 따른 차이가 있는지 알아보기 위해 BMI를 기준으로 저체중, 정상, 비만의 세 그룹으로 분류하여 각 그룹에서 BMI와 BIA, DXA 간의 상관도를 분석하였다. 저체중과 정상, 비만으로 나눈 세 그룹에서의 DXA와 BIA의 비교는 모든 그룹에서 통계적으로 유의한 차이를 보이지 않았다. 그룹으로 나누지 않은 상태에서의 상관분석결과 DXA로 측정된 체지방률은 BMI와 비교해 통계적으로 유의한 높은 상관관계를 나타냈으며(r=0.908, p<0.01) BIA와의 비교에서도 통계적으로 유의한 높은 상관관계를 보였다(r=0.927, p<0.01). 부분 골밀도 측정으로부터 추정된 전신체지방률이 BIA 그리고 BMI와 비교해 뛰어난 상관관계를 보여 정보의 신뢰도가 높다는 것을 확인하였다. 아직 추정된 전신체지방률에 관한 명확한 기준이 없어 골밀도측정만으로 체지방평가를 하기는 어렵다. 그러나 골밀도검사를 통해 골다공증의 진단은 물론 체지방에 관한 정보까지 얻을 수 있다는 점에서 매우 효율적이며 추후 전신골밀도검사로 측정된 체지방률과의 비교연구를 통해 더 객관적이고 임상적으로 유용한 정보 제공이 가능할 것으로 판단된다.

• 복식문화연구
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• 제8권6호
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• pp.930-939
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• 2000

This study was done to provide the fundamental data for scientific and rational children's clothing sizing system by investigating their somatometric characteristics and classifying somatotypes. The subjects were 269 elementary schoolgirls aged from 7 to 8 years old living in Pusan and Kyungsangnam-do. Data from each girl comprises 28 anthropometic measurments and 4 photographic measurments, related to the lower half of body. To analyze somatotypes of the lower half of body, factor analysis, cluster analysis, discriminant analysis were performed for statistical analysis of the data. As to the analysis to draw somatometric factors by this age group, five factors which explain 76.85% of the whole variances were extracted. The first and second factors which explain more than 60% of the whole variances represent 'horizontal size'and 'vertical size', which characterize most aspects of the body shape of the subjects. On the basis of the cluster analysis, three different lower half of body types were categorized. Type Ⅰ has biggest horizontal size, average vertical size and most protruded belly. Type Ⅱ has average degree of horizontal size, quite big vertical size and most protruded hips. Type Ⅲ has smallest horizontal and vertical size. According to the analysis to discriminate somatotypes of the lower half of body of this age group, weight and waist circumference of discriminant function 1 and abdominal circumference of discriminant function 2 have coefficient values.

• 천문학회지
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• 제19권1호
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• pp.11-14
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• 1986

It is shown in this paper that the astigmatic property of single gravitational lens in static bounded gravitational field can be retained, if n-gravitating body as a whole acts simultaneously as gravitational lens.

• 한국축산시설환경학회지
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• 제5권2호
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• pp.93-100
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• 1999

Pig's original image data was transformed to a binary image, an image excluding head and tail portion from the whole binary image, and a projected image associated with pig's height. Then the length of body, width of shoulder, and area of pig were calculated and the relationships among the above characteristics and pig's weight were analyzed. The results obtained from this study were as follows: 1. Whole binary image data was considered to be improper to determine the pig's weight because the movement of pig's head and tail portion affected the image data. 2. Binary image data excluding head and tail portion from the whole binary image showed a better estimation of the pig's weight than the whole binary image. 3. Pig's should width was analyzed to be improper factor to determine the pig's weight. 4. The projected image associated with pig's height showed the highest correlation between the pig's area of the image and pig's weight(R2=0.9965). From this research the projected image associated with pig's height, which is excluding head and tail portion from the whole body of pig's image, was considered to be the prime factor to measure the pig's weight by the noncontact measurement.

• 대한간호학회지
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• 제33권3호
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• pp.312-320
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• 2003

Purpose: To investigate body compositons and bone mineral density(BMD) in college women and to find the relationship between them. Method: From January to March of 2001, BMD at four parts(forearm, lumbar, femur and whole body), body mass index(BMI), body fat mass(BFM), lean body mass(LBM) and body fat percentage(%Fat) were measured with the Dual Energy X-ray Absorptiometry. Other physical characteristics were measured with a scale, a height measurer, and questionnaires. Result: Grouping by the BMI, 43.2% showed low weight, and 5% over weight. When applying the percent Fat, 43.8 % was diagnosed as obesity group. The fact indicate that a majority of college women have unbalanced body composition with high percent Fat, compared to their body weight. Assessing the BMD with the WHO standards, 91.4～95.7% of the BMD of forearm and whole body was normal. But, 40.3% and 33.1～43.9% showed osteopenia at lumbar and femur, and 104 %, 0.7～7.2% showed osteoporosis. The BMD at all parts showed significant correlation each other(r=.29～.89, p=.001～.000). Body weight and BMI showed correlations to with BMDs at all parts of the body(r=.19～46, p=.025～.000; r=18～.45, p=.039～.000). But the percent Fat had a correlation with only femur neck BMD(r=.19, p=.024). Conclusion: This study showed a majority of healthy college women were exposed to the risk for osteoporosis. Additional study is required to develop nursing interventions to remove the risk factors of osteoporosis. In particular, the acquisition of balanced body composition is necessary, increasing body weight and BMI through the increase of LBM, not through the quantitative increase of BFM.

• 한국소음진동공학회논문집
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• 제21권10호
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• pp.897-904
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• 2011

When whole-body is exposed to vertical vibration, asymmetry shape of human body affects the response on the translational(fore-aft, lateral, vertical) and rotational(roll, pitch, yaw) motion. While the translational motion has been studied with various titles, it has been rare to study the rotational motion of human body exposed to vertical excitation because of lack of experimental equipment. This study was performed by using a 6-axis force plate installing strain gage type sensors for the rotational response. Sixteen male subjects were exposed to vertical vibration on rigid seat in order to investigate apparent mass of three translational motion and apparent eccentric mass of three rotational motion. Random signal was generated to make excitation vibration which was on an effective frequency range of 3~40 Hz, and magnitude of 0.224 m/$s^2$ r.m.s. The frequency range and magnitude used was selected for the vibration of passenger vehicle on idling condition. As the result, cross-axis apparent masses of fore-and-aft and lateral direction were not significant showing 20 % and 3 % of vertical apparent mass relatively. And apparent eccentric mass of pitch motion was dominant when compared to that of roll and yaw motion, which is reasoned by asymmetry direction of human body sitting on a seat.