• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2003년도 봄 학술발표회 논문집
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• pp.447-454
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• 2003

In this test, two separated oil jacks were placed at bottom of drilled shaft(D = 1,500mm, L = 33m), and maximum upward and downward load of 1,250 tonf was applied. Also, the deformable rod sensors were placed on each level, and axial strains at each level were measured. Because the side skin friction and the end bearing could be measured separately in the Osterberg type pile load test, this test might be more economical and more applicable than a conventional static pile load test. Thus, if this Osterberg type pile load test could be established during design stage, construction cost might be reduced and its application for large diameter pile could be enhance greatly.

• 유공압시스템학회논문집
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• 제6권2호
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• pp.14-21
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• 2009

The typical hydraulic hoisting system of the rack-bar type sluice gate is composed of a hydraulic supply unit using an uni-directional pump, a direction control valve, a hydraulic motor, a counter balance valve, and flow control valves. Here, the hydrostatic transmission is applied to the hoisting system of rack-bar type sluice gate to simplify the operation of gate such that the upward and downward direction of gate is simply controlled by the direction of pump rotation. The new hydraulic hoisting system is composed of a bi-directional pump, a hydraulic motor, two counter balance valves, two check valves, two pilot-operated check valves, two relief valves and a shuttle valve. The characteristics of a suggested system are analyzed by computer simulations.

• 유공압시스템학회논문집
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• 제7권4호
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• pp.15-22
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• 2010

The typical hydraulic hoisting system of the rack-bar type sluice gate is composed of a hydraulic supply unit using an uni-directional pump, a direction control valve, a hydraulic motor, a counter balance valve, and flow control valves. Here, the hydrostatic transmission is applied to the hoisting system of rack-bar type sluice gate to simplify the operation of gate such that the upward and downward direction of gate is simply controlled by the direction of pump rotation. The new hydraulic hoisting system is composed of a bi-directional pump, a hydraulic motor, a counter balance valve, two check valves, two pilot-operated check valves, two relief valves and a shuttle valve. The characteristics of a suggested system are analyzed by computer simulations and experiments.

• 유공압시스템학회:학술대회논문집
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• 유공압시스템학회 2010년도 춘계학술대회
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• pp.86-92
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• 2010

The typical hydraulic hoisting system of the rack-bar type sluice gate is composed of a hydraulic supply unit using an uni-directional pump, a direction control valve, a hydraulic motor, a counter balance valve, and flow control valves. Here, the hydrostatic transmission is applied to the hoisting system of rack-bar type sluice gate to simplify the operation of gate such that the upward and downward direction of gate is simply controlled by the direction of pump rotation. The new hydraulic hoisting system is composed of a bi-directional pump, a hydraulic motor, a counter balance valve, two check valves, two pilot-operated check valves, two relief valves and a shuttle valve. The characteristics of a suggested system are analyzed by computer simulations and experiments.

• 자원환경지질
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• 제43권3호
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• pp.249-258
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• 2010

일반적으로 일정한 고도에서 계산된 지구자기 (또는 중력) 이상값을 다른 고도에서의 이상값으로 변환하기 위해서 푸리에 변환 (Fourier transform)을 이용하여 연속(continuation)을 실행한다. 하지만 두 연속면 사의의 수직 거리가 크거나, 특히 하향(downward)연속일 경우에 이러한 방법을 이용하면 수학적으로 불안전하여 현실적인 값을 갖기 어렵거나 실제적인 이상값과는 상이한 값을 갖는 경우가 대부분이다. 이를 보완하기 위해 두 개의 서로 다른 고도에서 얻은 독립적인 이상값을 이용하여 두 고도사이에서의 값을 비교적 정확히 예측할 수 있는 상호연속 (dual continuation) 모델을 제시하고자 한다. 이를 통해 지구물리, 지질학적 해석이 가능해지고, 지상자료만을 이용한 해석에서 올 수 있는 오류를, 다른 고도에서의 독립적으로 획득한 포텐셜필드 위성자료를 함께 사용함으로써 줄일 수 있다.

• 한국전문물리치료학회지
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• 제10권3호
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• pp.53-61
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• 2003

The purpose of this study was to determine the effects On the lymphedema patients of sponge padding and the correlation between the rate of edema reduction and downward shifting of bandages. Fifty secondary lymphedema patients with no infection, active cancer, limitation of movement, pain or drugs were randomly assigned to two groups: a sponge padding group, and a cotton padding group. Complex decongestive therapy was applied for 2 weeks. In each group the volume of the ankle, mid-calf, knee, and mid-thigh and downward shifting of bandages at the thigh was measured with measuring tape. The reduction of volume and downward shifting of bandages were analyzed by the unrelated t-test and the Pearson Correlation Test. The results were as follows: 1. In comparison between the sponge padding group and the cotton padding group, there was no significant difference in volume except in the thigh area. The edema volume was reduced significantly to $37.77{\pm}31.15%$ at the thigh with sponge padding after treatment (p<.05). 2. Bandage shifted 10.12 cm with cotton padding, but only shifted 2.85 cm when sponge padding was used. Sponge padding had an excellent effect in preventing the shifting of bandages. There was a significant difference in the amount of shifting that occurred with each type of padding (p<.05). 3. There was also a strong correlation between the reduction of edema and the shifting of bandage. These results suggest that short-stretch bandaging with sponge padding is more effective than bandaging with cotton padding. Further study on skin irritation and the comfort of sponge padding is needed to use padding materials safely and effectively.

• 헤리티지:역사와 과학
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• 제51권4호
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• pp.24-43
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• 2018

정자각의 화반은 임란 이후 지난 300여 년간 모두 35곳에 설치되었는데 이는 10년도 안 되는 간격으로 하나씩 만들어진 셈이다. 정자각은 대부분 이익공이라는 동일한 공포형식을 가지며 일정한 장식성이 요구되는 건물로 오랫동안 하나의 형태를 유지하였다. 화반은 이러한 역할에 충실하도록 배치된 건축요소이지만 세부적으로 볼 때 그 초각에는 많은 변화가 있었다는 사실을 현장답사를 통해 알게 되었다. 필자는 여러 종류의 화반초각에서 무엇이 같고 무엇이 다른지, 또한 초각을 새기던 장인들이 표현하려던 것이 무엇인지에 대한 호기심으로 이것을 나열하고 분류해 보았다. 그 결과 화반초각은 초각의 줄기가 시작되는 지점에 따라 크게 두 가지로 나눌 수 있었는데 외형상으로 보면 하나는 초각의 흐름이 위에서 아래로 내려가는 모습이고 또 하나는 밑에서 위로 올라가는 모습이다. 전자를 '하강형'이라 하고 후자를 '상승형'이라 분류하면서 그것에 대한 유래를 찾으려 시도하였다. 또한 이 '상승형'에는 1740년대를 전후로 연꽃이 유지되는 원형(原形)과 연꽃이 생략되는 변형(變形)이 장인의 장적(匠籍)제도와 관련되어 생겨났음을 유추할 수 있었다. 또한 1796년에 완성된 "화성성역의궤"의 화반그림에 표현된 초각이 이후 100여 년간 조금씩 화려해지는 변화는 있었지만 큰 틀이 유지되는 경우도 역시 존재했다는 사실을 알게 되었다. 이 글은 단지 정자각의 화반이라는 부재로만 한정되었다. 앞으로 초각을 가진 익공을 비롯하여 대공과 안초공 등의 다른 부재들과 함께 종합적인 고찰이 이루어지길 기대한다.

• 한국의류학회지
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• 제27권7호
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• pp.758-769
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• 2003

In this research, I classified adult women's back types through anthropometric measurement and photographic measurement to present a judging individual body size according to the type. Also, Ⅰ calculated regression fomula by types and presented the basic bodice pattern. The results were as follows: 1. The result of factor analysis indicated that 5 factors were extracted and those factors comprised 75.89% of total variance. 2. According to the cluster analysis, Ⅰclassified the back types into 6 types. Type 1 was passive posture in the upper and the lower parts of the back. Type 2 was active posture in the upper and the lower parts of the back. Type 3 had the lowest protrusion of the back. Type 4 had the upper part of the back which is mostly bent downward. Type 5 was the most suitable shape. Type 6 had the lower part of the back which was turned over the most. 3. Ⅰconducted a discriminant analysis to judge the body types of individuals. 4. For the calculation of measurements necessary for the basic bodice pattern, Ⅰpresented regression formulas by each type. 5. By conducting the wearing experiments, Ⅰsuccessfully made the final basic bodice patterns by types. As a result of comparative experiments between the basic bodice patterns and comparison bodice pattern, the suitability of basic bodice patterns were more highly assessed.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2003년도 International Meeting on Information Display
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• pp.407-410
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• 2003

We will introduce our new concept deposition system for SMOLED manufacturing in this conference. This system is designed to deposit organic and metal material to downward to overcome the limit of substrate size and process tact time hurdle for OLED mass production, and is organized with organic deposition chamber, substrate pre-cleaning chamber, metal deposition chamber and encapsulation system. These entire process chambers are integrated with linear type substrate transfer system. We also compare our new SMOLED manufacturing system with conventional vacuum deposition systems, and show basic organic thin film property data, organic material deposition property data, and basic device property.

• Clinics in Shoulder and Elbow
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• 제24권2호
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• pp.106-109
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• 2021

Displaced fracture of the distal third of the clavicle usually occurs after direct trauma to the shoulder and typically results in superior displacement of the proximal fragment. We report a previously undescribed case of downward displacement of the clavicle caused by a fall on an outstretched hand, and we suggest the mechanism of injury.