• 대한기계학회:학술대회논문집
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• 대한기계학회 2007년도 춘계학술대회B
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• pp.2997-3002
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• 2007

A manipulator is operated for the motion of mechanical hands or arms by mechanical mechanism. When a cup including liquid inside is shifted by a manipulator, it is important to know how a free surface of the liquid moves. In this study, non-dimensional parameters have been found that affect the rise of the free surface in a cup moving with constant acceleration. The non-dimensional parameters are the dimensionless time, the ratio of inertia effect to vicous effect (Reynolds number), aspect ratio of the liquid inside the cup and acceleration ratio (Froude number). Through this study, the height of the free surface rise in a cup has been predicted. Generally the maximum rise of the free surface is dependent on the Reynolds number and Froude number strongly, but on the aspect ratio weakly. But the influence of the aspect ratio on the maximum rise of the free surface in not negligible in the range 10 < Re < 100.

• 한국응용과학기술학회지
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• 제39권4호
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• pp.560-567
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• 2022

본 연구는 한국 FK CUP 대회 아이덴티티가 가치와 참가의도에 어떠한 영향력을 미치는지를 규명하여 효율적인 대회 운영방안의 기초자료를 제공하고자 했다. 따라서 한국풋살연맹이 주관하는 FK CUP 대회를 인지하고 있는 사람들 중 풋살대회에 참가했던 경험자를 표본으로 선정했다. 조사는 2022년 4월 1일부터 6월 17일까지 면대면 및 비대면으로 실시했으며, 총 299부의 자료를 최종 분석에 이용했다. 자료처리는 SPSS(ver. 21.0) 프로그램을 활용해 빈도분석, 탐색적 요인분석, 문항내적일관성, 상관분석, 단순 및 다중회귀 분석을 실시했다. 본 연구의 주요 결과, 첫째, 한국 FK CUP 대회 아이덴티티는 조직, 인간, 상징 순으로 가치에 영향을 미치는 것으로 나타났다. 둘째, 한국 FK CUP 대회 가치는 참가의도에 영향을 미치는 것으로 나타났다. 셋째, 한국 FK CUP 대회 아이덴티티는 조직, 인간 순으로 참가의도에 영향을 미치는 것으로 나타났다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2002년도 하계학술대회 논문집 D
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• pp.2521-2524
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• 2002

In this paper, We propose an Image processing algorithm for a paper-cup inner defect inspection. First, we devide a cup image to four sections considering the characteristic of a cup and filter noises limit by using the flood-fill algorithm and median filter. Second, to obtain the clearer inspection result of the edge point inner cup, We apply the sharpening convolution filer to the objected inspect the edge points by using the LOG edge detector. Third, executing sub-pixel operation with the orignal image, we find the defect parts in the cup. Finally, denoting the inspected defect parts as rectangular, we recompose the images of the defected ones.

• 한국임상수의학회지
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• 제39권6호
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• pp.390-394
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• 2022

A 6-year-old, 36.5 kg castrated male Golden Retriever presented for revision surgery for left total hip replacement. The patient underwent removal of the cup and head implants due to unmanageable prosthetic hip dislocation, despite revision surgery. On physical examination, the dog showed persistent weight-bearing lameness after exercise of the left hindlimb with mild muscle atrophy. Radiographic examination revealed dorsolateral displacement of the femur with a remnant stem and bony proliferation around the cranial and caudal acetabulum rims. The surgical plan was to apply the dual mobility cup to increase the range of motion and jump distance to correct soft tissue elongation and laxity caused by a prolonged period of craniodorsal dislocation of the femur. The preparation of the acetabulum for cup fixation was performed with a 29-mm reamer, and the 29.5-mm outer shell was fixed with five 2.4-mm cortical screws. The head and medium neck of the dual-mobility system were placed on the cup, and the hip joint was reduced between the neck and stem. The dog exhibited slight weight bearing on a controlled leash walk the day after surgery. The patient was discharged 2 weeks postoperatively without any complications. Six months postoperatively, osseointegration and a well-positioned cup implant were observed, and the dog showed excellent limb function without hip dislocation until 18 months of phone call follow-up.

• 한국포장학회지
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• 제25권3호
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• pp.89-94
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• 2019

Among the many packaging materials used in cushion packaging, there is a lack of optimum design for the tray cup pad used in fruit packaging for export and domestic distribution. It causes over-packaging due to excessive material input, and this could be solved by applying various parameters needed to optimize the design of the tray cup pad considering the packaging material and the quantity of fruits in the box. In the case of a tray cup for fruits, the economic efficiency of material and thickness should be considered. Therefore, it is possible to design a tray cup pad depending on the packaging material used by applying appropriate design parameters. The static and dynamic characteristics of the materials used for packaging of pears were analyzed by using the FEM (finite element Method) simulation technique to derive the optimal design parameters. And by applying the appropriate design parameters considering the quantity of fruit and distribution environment, it is possible to design an appropriate fruit tray cup pad. In this study, as a result of simulating the contact stresses between the fruit and the tray cup for the PP, PE, and PS materials used in the fruit tray cup, the material with the lowest contact stress was PP and the value was found to be 398 Pa. The contact displacement between fruit and tray cup using this material was about 0.0463 mm, which was the lowest value compared with other materials. Also the resonance frequency band of tray cup made of PP material was below 36.81 Hz, and the strain energy was below 12.20 J. The resonant frequency band of the pear is more than 80 Hz and it could be applied to all the tray cup materials as compared with the resonance band of 38.81 Hz or less which is the resonance band of all tray cup pads for packaging. Finally, PP is the most suitable material for the tray cup pad.

• 한국소성가공학회:학술대회논문집
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• 한국소성가공학회 1999년도 춘계학술대회논문집
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• pp.30.1-33
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• 1999

Finite element simulation with experimental analysis of Taguchi's orthogonal array was carried out to know the effects of material and forming parameters on the cup earing and skewness. It was revealed that the planar anisotropy was the most influencing factor in the cup ear formation whereas blank holding force and material properties such as strength and thickness deviation at the coil edge had a relatively high effect on the cup skewness.

• 대한기계학회:학술대회논문집
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• 대한기계학회 2004년도 추계학술대회
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• pp.962-966
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• 2004

Suction transfer system with air suctioning is widely used and continuously developed in production automation. Air suctioning has some drawbacks in use. To generate vacuum in the suction cup with air suctioning, complex of mechanical component like as air compressor, air tube, air value is need, and it needs continuous air supply. And if the failure of the suction in a cup in the multi-suction cup system which is generally used occurs then the suctions of all of the cup will be fail. To overcome these drawbacks, new suction mechanism which uses permanent magnet for the movement of the suction cup is proposed. The proposed mechanism activates each suction cup separately, so the air leakage of a cup is not critical. The proposed suction system wasdesigned and fabricated in real world. With some experiments, the usability and performance of the suction mechanism was proved. The strong points of the proposed suction mechanism are simple structure, high energy efficiency, and discrete energy supply.

• Tribology and Lubricants
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• 제10권3호
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• pp.12-17
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• 1994

Minimum clearance between the U-cup seal groove of a piston and a cylinder bore to ensure against extrusion of the U-cup ring and leakage of working fluids is an important design parameter for a seal designer in hydraulic cylinder applications. Therefore, typical U-cup seal of a hydraulic actuator has been analyzed as a function of a sealing gap using the nonlinear FEM software MARC. In this study, the useful design data were presented as a function of the sealing gap and the sealed hydraulic pressure.

• 한국식생활문화학회지
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• 제6권1호
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• pp.1-19
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• 1991

To analyse wedding feast dishes of royal prince of Chosun Dynasty(1744, 1819), the author studied historic book-GareDogamEuigwae, in which the wedding feast dishes of King and Prince in Chosun Dynasty were described. The results obtained from the study were as follows, 1. Arranged dishes in wedding ceremony were four kinds of table, main table, second table, third table and fourth table. That table setting was same as that of the year 1651. 2. Meal ceremonies were in sacrificial food partaking, drinking ceremony and courtesy of levee. 3. In wedding ceremony, prince and princess drank three cups of liquor. At the first cup they eat abalones soup and others in a small round table(初味), at the second cup fine noodles and others in another table(二味), at the third cup bun stuffed with fish and others in the other table(三味). 4. In sacrificial food partaking and drinking ceremony, King drank nine cups of liquor, at first cup, King eats a small boiled beef(小膳) and (初味), at second cup eats(二味), at third cup eats(三味),${\cdots}$, at nineth cup, King eats a soup, a large boiled beef(大膳) and fruits. 5. Dish materials and quantities used for wedding ceremony in the year of 1819 was same as that of the year 1651.

• 대한전기학회논문지:전기기기및에너지변환시스템부문B
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• 제49권5호
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• pp.291-296
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• 2000

Recently large size color TV and computer monitor are very popular and a lot techniques are being developed to get a high quality picture on the screen through reducing the convergence error among the red, green and blue beams and achieving a high focusing. One of the techniques is considering the mutual effects of the components of the Brown tube. The magnetic deflection yoke, especially, stands immediately next to the electron gun and generates the leakage magnetic fields at the electron gun which affects the trajectories of the electron beams inside the gun. Hence a shield cup made of thin conducting plate is located at the end of electron gun in order to shield the leakage flux from the deflection yoke. Since the red, green and blue beams are placed unsymmetrically the shielding effects of the shield cup on the beams are not same and eddy current controller, made of thin conducting plate, is auxiliary placed inside the shield cup. In this paper a transient magnetic field analysis algorithm is developed using boundary element method, and applied to the analysis of the shielding effects of the eddy current controller of shield cup in an electron gun.