• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2002년도 추계학술대회 논문집
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• pp.929-932
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• 2002

As 3-D solid modeling systems have been widely used in product design recently, dedicated design systems for molds of the products have been developed and introduced to mold manufacturers. These mold design systems provide solid modeling capabilites for mechanism to free undercuts. This paper describes an algorithm for slide design capability that has been developed based on a commercial CAD system, Unigraphics. Since the relationship between slide parts were investigated and predefined using parameters in the system, the dimensions and locations of the parts are modifed automatically when a part is modified.

• Tribology and Lubricants
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• 제12권2호
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• pp.8-19
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• 1996

Scroll compressor using a slide bushing type radial compliant crank mechanism is modelled, and it's dynamic behaviour characteristics are analyzed. Sealing forces generated in the flank surfaces of the orbiting scroll depending on the distance, e, from slide bushing center to crank pin center are calculated. From the stable condition of orbiting scroll for the moment equilibrium in tangential direction, the range of e is determined as 0$r_o$. Transient response of a crankshaft supported by two journal bearings is investigated, considering applied load, moment, and unbalance force by eccentric mass. As a result, conical whirl mode with circular orbits are obtained. The characteristics of journal orbits and frictional losses are calculated with a variation of viscosity and bearing clearance.

• 미생물학회지
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• 제12권3호
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• pp.147-148
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• 1974

A small amount of Duco cement or Elmer's clear cement was dropped on a slide glass and immediately spread with a glass rod or woden stick a thin film on the surface. After approximately 1 minute a small amount of rubber cement was spread on the top of the film of Duco cement using the same method as described earlier. It was important that the rubber cement be smeared before the Duco cement dried out. These two kinds of cements must not be mixed. It was better to make the film of the rubber cement slightly thicker than the film of Duco cement. This composite film may be used up to several months after preparation. The sample leaf was placted on the slide, prepared with adhesive and the leaf surface was passed on the film with the thumb. The pressing was done so the leaf surface was completely in contact with the film. Then the leaf was peeled from the slide.

• 반도체디스플레이기술학회지
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• 제10권4호
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• pp.47-51
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• 2011

We investigated the substrate surface polishing by the spherical rigid abrasive under the compression using classical molecular dynamics modeling. We performed three-dimensional molecular dynamic simulations using the Morse potential functions for the various slide-to-roll ratios, from 0 to 1, and then, the compressive forces acting on the spherical rigid abrasive were calculated as functions of the time and the slide-to-roll ratio. The friction coefficients obtained from the classical molecular dynamics simulations were compared to those obtained from the experiments; and found that the molecular dynamic simulation results with the slide-to-roll ratio of 0 value were in good agreement with the experimental results.

• 한국공작기계학회:학술대회논문집
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• 한국공작기계학회 2005년도 춘계학술대회 논문집
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• pp.97-102
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• 2005

This paper presents feed rate optimizaton of a PMLSM driven feed-slide for mininum vibrations by smoothing velocity curve with finite jerk. First of all, the PMLSM was designed and made to reduce detent force. Next, a PMLSM driven feed-slide system was mathematically modeled as a 4-degree-of-freedom lumped parameter model. The key idea of our vibration minimization method is to find out the most appropriate smooth velocity curve with finite jerk. The validity of our proposed method has been verified by comparing computer simulation results of the feed-slide model with experimental ones.

• 대한전기학회논문지:전기기기및에너지변환시스템부문B
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• 제54권8호
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• pp.351-357
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• 2005

This paper presents vibration minimization of a PMLSM driven feed-slide by using optimized smooth velocity curve with finite jerk. First of all, the PMLSM was designed and made to reduce detent force. Next, a PMLSM driven feed-slide system was mathematically modeled as a 4-degree-of-freedom lumped parameter model. The key idea of our vibration minimization method is to find out the most appropriate smooth velocity(feedrate) curve with finite jerk. The validity of our proposed method has been verified by comparing computer simulation results of the feed-slide model with experimental ones.

• 한국정밀공학회지
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• 제21권5호
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• pp.182-187
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• 2004

In an aging society, the mobility and the accessibility are considered sincerely for the elderly and the handicapped person. The slide-up seat system, which helps board and disembark a car via electric power was developed for the elderly, the handicapped and the families who accompany them. In this paper, critical factors and methods to design the mechanism and controller for safety and comfortableness are suggested. The performance of the system including linkage, electrical, and electronic parts was improved by changing the detail design and some parts after durability test for them.

• The Journal of Korean Physical Therapy
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• 제34권4호
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• pp.140-148
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• 2022

Purpose: The purpose of this study was to investigate the effects of the scapulothoracic mobilization on subject with lateral epicondylalgia. This was done through lateral slide scapular test, grip strength, visual analogue scale, glenohumeral joint external rotation range of motion. Methods: Before the experiment, Lateral slide scapular test, grip strength, visual analogue scale, glenohumeral joint external rotation range of motion were measured. Scapulothoracic joint mobilization was applied and then measurements were taken again to compared the changes. Results: After applying the scapulothoracic joint mobilization, lateral slide scapular test, grip strength, visual analogue scale, glenohumeral joint external rotation range of motion significantly improved. Conclusion: This study found that the scapulothoracic mobilization was effective in improving functional aspects and pain on subject with lateral epicondylalgia. The results suggest that the scapulothoracic joint mobilization is a significant considered intervention method that could be used for subject with lateral epicondylalgia.

• 한국산림과학회지
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• 제90권4호
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• pp.535-542
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• 2001

이 연구의 목적은 토사붕괴산지재해에 대한 산지의 기능적합도 평가를 위한 공간분석모델링기법을 개발하기 위해 수행되었다. 기능적합도는 산지의 토사붕괴 가능성에 따라 상, 중, 하의 3단계로 구분되었다. 토사붕괴의 가능성온 경사, 모암, 토심, 경사형태, 임상 및 임목의 직경급과 같은 7개의 입지인자들에 대한 측정치를 이용하여 추정되었고, 이 과정에 토사붕괴 발생 요인으로서 각 인자들의 상대적 가중치는 AHP기법에 의해 결정되었다. 공간분석모델링은 7개 입지인자들에 대한 $25m{\times}25m$ grid 분석 혹은 TIN 분석을 통해 기초 layer 작성에서 시작된다. 이를 토대로 재분류 및 점수화 과정을 거쳐 토사붕괴 가능성 추정에 필요한 인자들의 속성 값을 지니는 새로운 layer를 형성한다. 이러한 속성 값에 가중치를 적용하고 지도대수분석을 통해 $25m{\times}25m$ cell 단위의 기능평가도를 작성하고, 마지막으로 cell-grouping을 통해 보다 실무적인 기능도를 작성하게 된다. 이 논문은 이러한 일련의 공간분석모델링 과정을 방법론적 관점에서 제시한다.

• 한국광학회지
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• 제13권2호
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• pp.92-97
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• 2002

초측정 할 수 있는 nodal slide식 실시간 OTF 측정 장치를 제작하였다. 비축 물체를 측정하기 위하여 nodal slide와 T-bar를 사용하고, 실시간 측정을 위하여 화소 간격이 가로 9.9$\mu\textrm{m}$와 세로 9.6$\mu\textrm{m}$인 2차원 CCD(charge coupled device)를 사용하며, 초점 길이 300mm의 시준 렌즈를 사용하여 장치를 소형화하였다. 그리고 F/8, 초점 길이 50 mm인 SIRA사의 표준 렌즈를 이용하여 측정 장치의 정확도를 평가하고 보정하였다. 본 장치의 신뢰도를 위하여 시야각이 10.6$^{\circ}$이고, 초점 길이가 25.0mm인 CCTV & VIDEO 렌즈(JAPAN, AVENIR-SE 2514)의 MTF를 측정하여 카메라 벤취(bench)형 OTF측정 장치로부터 구한 MTF 값들과 상호 비교한 결과 대부분의 공간주파수에서 4% 이내로 일치하였다.