• 한국의류학회지
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• 제26권1호
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• pp.15-26
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• 2002

The purpose of this study was to classier the somatotype of late middle-aged women and to analyze the characteristics of each somatotype. The subjects were 337 late middle-aged women and their age range os from 45 to 59 fears old. Data were collected through anthropometry and photometry and analyzed by factor analysis, cluster analysis and discriminant analysis. The results were as follows; 1. The result of factor analysis indicated that 9 factors were extracted through factor analysis and those factors comprised 83.56 percent of total valiance. 2. Using factor scores, cluster analysis was carried out and the subject were classified into 4 cluster. Each cluster was classified as their body front and side view contour. Type 1 is tall, slim, and lower balk is flat on the side. Type 2 is standard and lean-back type on the side. Type 3 is standard height and weight, H type in front, and belly-protruded on the side. Type 4 is short, fat, and the side is hip-protruded. 3. According to the stepwise discriminant analysis, the 9 important items in classifying the somatotype of the late middle-aged women are as follows ; lower back tilt angle, hip depth(back) -back waist depth(back), bust depth(fore) - anterior waist depth(fore), jugular fossa point(fore), upper back tilt angle, burst breadth -waist breadth, right shoulder tilt, height of shoulder - height of anterior waist, abdomen breath. The correct classification rate for these items is as exact as 84.62%.

• 한국전자통신학회논문지
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• 제9권11호
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• pp.1227-1232
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• 2014

본 논문은 기존의 poly length만의 축소와 달리 입, 출력 소자를 포함한 core 디바이스의 $0.13{\mu}m$ 디자인을 10% 축소하는 것으로 여러 채널 길이에 따른 body effect와 doping profile simulation을 해석하였다. 축소 전의 DC 파라미터 매칭을 위하여 게이트 산화막의 decoupled plasma nitridation 처리와 LDD(Lightly Doped Drain) 이온주입 전 TEOS(Tetraethylortho silicate) 산화막 $100{\AA}$ 그리고 LDD 이온주입을 22o tilt-angle(45o twist-angle)로 최적화하였고 그 결과 축소 전의 5%의 범위에서 매칭됨을 확인하였다.

• 한국태양에너지학회 논문집
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• 제32권spc3호
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• pp.262-268
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• 2012

In the recent research technical solutions have been studied to integrate renewable energy into unmanned aerial vehicles to use it as the main power source. As the weight of the aerial vehicle body is essential for its performance, we consider to use light-weight solar cell technology. Furthermore fuel cells are also integrated create a highly energy-efficient aerial robot. In this paper, construction concept and software design of the tilt-rotor aerial vehicle GAORI is introduced which uses solar cells and fuel cells as power source. The future work direction and prognosis are discussed.

• 한국공작기계학회논문집
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• 제14권4호
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• pp.22-31
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• 2005

The purpose of this study is to design a flexural structure that has a function of pan and tilt for an artificial eyeball. The artificial eyeball system has a function of image stabilization, which compensate panning and tilting vibration of the body on which the artificial eyeball is attached. The target closed loop control bandwidth is 50Hz, so the mechanical resonance frequency is required to be more than the control bandwidth, which is a tough design problem because of a big mass of camera and actuator. In this study, the design process including the selection of the principal parameters by numerical analysis with ANSYS will be described, as well as the design results and frequency response.

• 한국의류학회지
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• 제27권1호
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• pp.88-99
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• 2003

The body changes of the elderly women are the forward tilt of the neck and shoulder point shrinkage of the spinal column, and protrusive abdomen. Unfortunately, few data based on body measurements for elderly women existed and a few studies are limited to the body figure of the elderly women. If these changes are not applied to the manufacturing of the clothing, almost of the elderly women will be unfitted with their clothing. So to improve the fitting of the elderly women, it is necessary to use the standard size systems for elderly women. This report is the first study to develop the standard tables of body measurements to be used for improving the fit of garments and patterns for women aged 60 and older. This study drew from anthropometric measurements of 337 and photographic measurements of 276 women aged 60 and older. It described the protocol of anthropometric measurement, the comparison between the measured data and the data on which National anthropometric survey of Korea 1997 is based, and the development of body measurement standard tables for elderly women. And we also considered the regional difference of body dimensions in order to develop the national size standards for elderly women. Further study would include the classification of body dimensions and description of each figure type for sizing apparel of women aged 60 and older.

• The Korean Journal of Physiology
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• 제30권2호
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• pp.237-247
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• 1996

This study was carried out to determine the effect of $-6^{\circ}$ head-down bedrest on the cardiovascular and hormonal responses to orthostasis and to evaluate the mechanism of orthostatic intolerance. Ten healthy young men were changed the body position from $-6^{\circ}$ head-down or supine bedrest for 2 hr to $70^{\circ}$ head-up tilt for 20 min. During the bedrest, there were no differences in hemodynamic and hormonal changes between the head-down and the supine positions. However, the tendency of decreased end-diastolic volume and increased cardiac contractility during the later period of 2 hr showed that the cardiovascular adaptation could be accelerated within a relatively short period in the head-down bedrest. During the head-up tilt, presyncopal signs were developed in five subjects of the supine bedrest, and one of the same subjects of the head-down bedrest. In the tolerant subjects, the increase in cardiac contractility and plasma epinephrine level during the bend-up tilt was greater following the head-down bedrest than that following the supine bedrest to compensate for reduced venous return. The intolerant subjects showed the greater decrease in end-diastolic and stroke volume, and the greater increase in heart rate during the head-up tilt than the tolerant subjects. Cardiac contractility and plasma epinephrine level were remarkably increased. However, arterial pressure was not maintained at the level for the appropriate compensation of the reduced venous return. It seems that the tolerance to orthostasis is more effective after the short-term head-down bedrest than after the supine bedrest, and the secretion of epinephrine induces the higher cardiac performance as a compensatory mechanism fur the reduced venous return during the orthostasis following the head-down bedrest than the supine bedrest.

• 방사성폐기물학회지
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• 제2권3호
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• pp.189-199
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• 2004

기계식 마스터-슬레이브 매니퓰레이터의 결점인 접근 지역의 제한을 극복하기 위해 차세대관리 공정장치 원격 유지보수용 천정이동 서보 매니퓰레이터(Bridge Transported Servo Manipulator, BTSM) 시스템을 개발하고 있다. 서보 매니퓰레이터는 핫셀 내 천정이동 브릿지(bridge)에 부착되는 슬레이브 매니퓰레이터와 핫셀 밖 운전지 역에 설치되는 마스터 매니퓰레이터로 구성된다. 각각의 매니퓰레이터는 몸체 회전, 상부 팔 틸트(tilt), 하부 팔 틸트, 하부 팔 회전, 손목 팬/틸트(pan & tilt) 및 잡는 운동(grasp motion)의 7 자유도를 갖는다. 하부 팔 회전, 손목 팬/틸트 및 잡는 운동은 매니퓰레이터의 무게에 비해 취급 용량을 크게 하고, 마찰을 작게 하기 위하여 와이어 구동 메카니즘을 채택하였다. 그러나, 와이어 구동 메카니즘은 한 축이 움직일 때 다른 축도 영향을 받을 수 있는 단점이 있다. 본 논문에서는 이와 같은 단점을 극복하기 위해 와이어 구동 링크(link) 사이의 전달 특성을 수식화 하였다. 와이어구동 링크들간의 전달특성 분석 및 실험을 통해서 이들의 기대하지 않은 동작 특성을 확인하였다. 또한, 제안한 보상식을 통해서 기대하지 않은 동작을 크게 줄일 수 있음을 확인하였다.

• 한국지능시스템학회논문지
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• 제22권3호
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• pp.305-311
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• 2012

본 논문에서는 4족 로봇 몸체의 xz-축 스웨이(sway)를 이용하여 4족 로봇의 몸체 흔들림을 최소로 하고 안정도 여유를 최대로 하는 걸음새 생성 방법을 제안한다. 제안한 방법에서는 물결 걸음새(wave gait)를 기반으로 생성하고, 안정도 판별은 움직이는 다리의 높이 변화량과 4족 로봇의 몸체 기울기 정보를 이용한다. 이 때, 4족 로봇의 보행 시 z-축 스웨이로 인한 몸체의 충격을 줄이기 위해 푸리에 급수(Fourier series)를 이용하여 다리의 유연한 이동 궤적을 생성한다. 마지막으로, 본 논문에서 제안한 알고리듬의 실제 적용 가능성 및 효용성을 검증하기 위해 모의 실험 및 4족 로봇의 실제 보행 실험을 수행하여 제안한 방법의 보행 성능을 검증한다.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2004년도 춘계학술대회논문집
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• pp.384-388
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• 2004

This study presents parametric studies for design of tiling mechanism to be used in 180km/h tilting train. The titling mechanism is composed of 4 links, a tilting bolster and an electro-mechanical actuator. First we have determined the installation height of tilting actuator using 3D tilting bogie modeling. Secondary, we verified movements of the tiling center and train body CG along variation of upper and lower span length. From this study, we obtained the upper and lower span length to minimize the lateral and vertical motion of CG of train body. Finally, we evaluated the tilting actuator force and power required to tilt the train body to $\pm$8$^{\circ}$.

• 대한물리의학회지
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• 제8권2호
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• pp.193-200
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• 2013

PURPOSE: The purpose of this study was to find out variations in body posture by using the baby carrier at the front side and back side. METHODS: Thirty two healthy and young female who will bring up infants and had no musculoskeletal disorders of neck, lumbar and low limb were recruited for this study. They were each marked about ears of tragus, cervical 7th, acromion anterior end, anterior superior iliac spine, posterior superior iliac spine, greater trochanter and lateral malleolus as landmarks to measure variations of body posture when they carry infants at the front side and back side. Landmarks were regarded as the creteria in order to measure NeckFlexion angle(NF), Foreward shoulder angle(FSA), Pelvic tilt(PT), Sway angle(SA), Head displacement(HD) and Scapular displacement(SD). Variations in body posture were measured from the neutral position to the front and back side by using Image J. RESULTS: There were significance level (p<.05) in NF, PT, SA, HD and SD except for FSA in two different side. CONCLUSION: The results of this study indicate that each of the using ways of baby carrier for baby care was influenced postural responses of young women. therefore, it could be considered to apply to women who have abnormal body posture in order to minimize musculoskeletal disorders.