• 산업경영시스템학회지
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• 제18권36호
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• pp.41-47
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• 1995

This study present a systematic and more economical anthropometric technique to acquire 3-D anthropometric data by the use of moire interferometry, image processing and computer vision techniques. An experiment was performed to measure in anthopometric variables (head and face), such as head length, head breath, length of ear to top of head, contained face areas, etc. We took fourty-five subjects with wide range of ages(18 years to 33 years old). The face area was calculated based on contour information. The results were then compared with plaster bandage methods. It turned out that the proposed method had 90.85% consistancy.

• Journal of Biosystems Engineering
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• 제31권6호
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• pp.474-481
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• 2006

In this paper, a new type blow head was developed and pneumatic application system was evaluated. The blow head had one operating factor, inserting length of collecting plate, that was directly related to discharge rate and application pattern. To determine Proper blow head arrangement and application height, a blow head set was tested. Three-way ANOVA was conducted to investigate relationships between CV value, the discharge rate and inserting length of collecting plate. The discharge rate and inserting length of collecting plate were statistically significant at p=0.01, affecting uniformity of application pattern. The best CV value among the application tests was 23.3% when the application rate and application height was 23.5 g/sec and 80 cm respectively. The worst CV value was 63.3% in 111.4 g/sec. Therefore, it is necessary to increase number of blow head in a section of the boom in improve application uniformity.

• 대한통합의학회지
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• 제5권3호
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• pp.21-28
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• 2017

Purpose: The purpose of this study was to investigate the effects of three exercise programs on forward head posture. Methods: Ninety-five individuals were recruited to assess the of the pectoralis minor muscle. Of these, 36 individuals with pectoralis minor muscles were selected and randomly divided into three groups: a functional massage group, a stretching group, and a stretching and muscle strengthening group. The exercise program consisted of sessions four times per week for two weeks. The length of pectoralis minor and the activity of the trapezius muscles were measured using electromyography. Forward head posture was assessed using the craniovertebral angle (CVA) and the cranial rotation angle (CRA) pre-, during and post-treatment. Result: Significant improvements were observed in pectoralis minor length, CRA, and CVA post-treatment in all groups (p<0.05, p<0.01, p<0.001). However, only the activity of the lower trapezius demonstrated a statistically significant difference post-treatment. There were no significant differences between the groups. Conclusion: The findings of this study suggest that all three exercise programs were effective in improving forward head posture and the length of pectoralis minor post-treatment.

• 반도체디스플레이기술학회지
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• 제21권4호
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• pp.39-44
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• 2022

Using a CFD (computational fluid dynamics) simulation tool, we have offered a design guideline of a slot-die head having a simple T-shaped cavity through an analysis of the fluid dynamics in terms of cavity pressure and outlet velocity, which affect the uniformity of coated thin films. We have visualized the fluid flow with a transparent slot-die head where poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate) (PEDOT:PSS) is injected. We have shown that the fluid dynamics inside the slot-die head depends sensitively on the cavity depth, cavity length, land length, and channel gap (i.e., shim thickness). Of those, the channel gap is the most critical parameter that determines the uniformity of the pressure and velocity distributions. A pressure drop inside the cavity is shown to be reduced with decreasing shim thickness. To quantify it, we have also calculated the coefficient of variation (CV). In accordance with Hagen-Poiseuille's laws and electron-hydraulic analogy, the CV value is decreased with increasing cavity depth, cavity length, and land length.

• 패션비즈니스
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• 제11권6호
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• pp.24-34
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• 2007

This study aims to suggest basic data for the production of hats for aged women. The subjects were 151 females who are 60 years old or above and live in Busan. Their hat-wearing reality was inquired and their head parts were measured, which led to the following conclusion: 1. Results of Hat-Wearing Reality Inquiry 64.9% answered they are unsatisfied with the size system of the available hats at present, implying the necessity for improving the current dimension system. 92.7% responded hat dimensions need to be subdivided, while 97.4% were for the necessity of hat size system. 74.8% expressed their will to buy ordered hats because they can find the hats of right sizes and designs. 2. Results of Head-Part Measurement Experiments According to head-part measurement, head circumference A was 53.26cm, head circumference B 54.19cm, and head circumference C 57.69cm on the average. Cluster analysis revealed three types. Type 1 (24%) with small head length and circumference is the smallest head with a wide upper part. Type 2 (33%) has long head height, short bitragion arc A, and thick head breadth. Type 3 (43%), owing to big head circumference and length as well as high values in vertical items. Considering head circumference B (HCB) and bitragion arc A (BAA), a new hat size system of 3 sizes (HCB: BAA) was chosen: S (52cm: 29cm), M (53-55cm: 30cm), and L (56-57cm: 31cm).

• 환경생물
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• 제18권4호
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• pp.387-394
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• 2000

1990년 6월부터 1999년 9월까지 채집된 한국산 꾹저구, 무늬꾹저구, 검정꾹저구 3종의 성별에 따른 형태적 특징을 비교 분석하였다. 한국산 꾹저구속 3종은 암컷과 수컷 모두 측정한 13개의 형질 중 꼬리지느러미 길이를 제외한 12개의 형질에서 종간에 유의적 차이가 인정되었고, 이들 3종간에 각 차이의 유무를 알아보기 위한 다중비교분석 결과, 암컷의 경우 3종 모두 종간 구별이 되는 형질은 6개의 형질 즉, 체고, 두장, 미병장, 미병고, 문장, 가슴지느러미 길이였다. 무의꾹저구는 상악장, 뒷지느러미 길이, 안경이 다른 2종보다 짧았으며 두폭, 두고는 3종 중 가장 작았고, 꾹저구는 배지느러미 길이가 가장 길었다. 한편 수컷의 경우 3종 모두 종간 구별이 되는 형질은 없었으나, 꾹저구의 수컷은 두장, 안경, 배지느러미 길이가 가장 길었으며, 무의꾹저구는 미병장이 가장 길었고, 문장과 뒷지느러미 길이가 가장 짧았으며 두고는 가장 낮았다. 검정꾹저구의 수컷은 체고와 미병고가 월등히 높아서 다른 2종과 뚜렷히 구별되었으며, 상악장과 가슴지느러미 길이도 3종 중 가장 길었다.

• 한국어류학회지
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• 제19권2호
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• pp.128-131
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• 2007

전장 3.0~650.0 mm의 민어, Miichthys miiuy 209 개체의 두장, 문장, 안와후연장 및 안경을 계측하였다. 측정된 개체들의 모든 두부형질은 전장에 대해 회귀하였고, 머리의 상대크기에 선형으로 증가하였다. 결정계수($r^2$)는 0.9823~0.9916의 범위를 나타내었고, 모두 유의하게 나타났다(P<0.0001). 본 연구에서 사용된 두부형질들은 민어의 성공적인 사육을 위한 개체 및 집단성장사 및 형태 변형을 감지할 수 있는 유용한 지표가 될 수 있으리라 사료된다.

• 대한통합의학회지
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• 제1권2호
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• pp.37-46
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• 2013

Purpose : The purpose of the research was to analyze foot pressure, foot temperature, and correlation between foot pressure and foot temperature to grasp impact on foot pressure and body temperature distribution chart depending on functional difference of leg length. Method : After measuring leg length, put 15 students whose functional difference of leg length was over 10mm to difference group and 15 students whose functional difference of leg length was under 5mm to normal group and categorize soles of foot into 6 sections of hallux head, 1st metatarsal head, 2-4 metatarsal head, 5 metatarsal head, lateral heel, and then measure by foot pressure analyzer to analyze characteristic of pressure distribution and classify into front of the lower leg, back of the lower leg, soles of foot and measure by body temperature analyzer to analyze by checking body temperature. Result : Weight difference depending on foot pressure and body temperature was bigger when functional difference of leg length was bigger, and it could be confirmed that foot pressure and body temperature of short leg side were higher than those of short leg side. Thus, if difference exists in leg length, weight load on short leg side increases which results in higher foot pressure and body temperature, therefore enabling an assumption that mechanical problem will occur in short leg. Conclusion : When functional leg length inequality, weight bearing and pressure was getting high as a result, temperature was getting high in short leg.

• 대한추나의학회지
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• 제5권1호
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• pp.213-222
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• 2004

Objectives : To investigate contributing degree of other factors except pelvic tilting to F.L.L.D by analizing with Gonstead technique on the correlation between femur head height discrepancy on the standing pelvic AP view and F.L.L.D caused by pelvic tilting. Method : We analysed standing pelvis AP X-ray of 70 patients who had visited at the department acupunture and moxibustion in Conmaul oriental medical hospital, during May, 1st, 2004 - July, 30th, 2004, with low back pain or lower extremity pain. We excluded the person with any past history of polio, genetic defect, malunited fracture, growth plate injury, infection and overgrowth attributable to hemangioma, or arteriovenous fistula. Results & Conclusion : The functional leg length discrepancy caused by pelvic tilting and femur head height difference had no statistical difference(p=0.132) but poorly correlated(Pearson ${\nu}=0.05$). In the 94.28% of subjects, the femur head height difference wasn't in accord with F.L.L.D. caused by pelvic tilting. In 47.14% of subjects were expected to have over $3^{mm}$ of leg length discrepancy after pelvic adjustment. The mean of measurement difference between two methods was $3.76{\pm}3.12^{mm}$ and the range was $0{\sim}11.4^{mm}$. Consequently, we must consider not only functional leg length discrepancy caused by pelvic tilting but also anatomical leg length discrepancy, misalignment of ankle, knee or hip joint etc.

• 한국양식학회지
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• 제10권1호
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• pp.49-54
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• 1997

무지개송어, 산천어, 무지개송어와 산천어간의 잡종 3배체를 대상으로 성비조사와 형태학적 계측형질을 측정하였다. 무지개송어, 산천어의 암.수 성비는 공히 유사한 비율로 나타난 반면, 잡종과 잡종 3배체에서는 수컷이 암컷에 비해 높게 나타났다(p<0.01). 잡종 3배체는 두고/두장, 등지느러미 기부장/체장 및 가슴지느러미 길이/체장의 계측형질에서는 친어로 사용된 무지개송어와 산천어의 중간을 나타낸 반면 상악장/두장의 계측형질에서는 무지개송어 쪽을 다소 닮게 나타났다. 이러한 결과들은 잡종 3배체에서 3배체화에 따른 사용된 친어들에 대비된 성비 그리고 계측형질에서의 특징을 나타내었다.