• Design & Manufacturing
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• 제14권2호
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• pp.21-27
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• 2020

Recently, LCD (Liquid Crystal Display) has been replaced by OLDE (Organic Light Emitting Diode) in high resolution display industry. In the process of OLDE production, it inspects defective products by sending a signal using a probe during OLED panel inspection. At this time, the cause of the detection of failure is divided into two. One is the self-defect of the OLED panel and the other is the poor contact occurring in the process of contact between the two. The second case is unknown at the time of testing, which increases the time for retesting. To this end, we made a system that can identify in real time whether the probe is in contact during the inspection. A contact probe unit was designed for the system, and a stage system was implemented. An inspection system was constructed through S / W and circuit configuration for actual inspection. Finally, a system that can check contact and non-contact in real time was constructed.

• 한국콘텐츠학회논문지
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• 제21권5호
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• pp.465-476
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• 2021

이 연구는 불법 성콘텐츠 접촉과 불법 성콘텐츠 유통의 그 원인요인들 및 통제요인들을 제시하고 그 요인들 간의 상호작용효과를 각각 살펴보고 비교하였다. 원인요인으로는 낮은 자기통제력, 불법 성콘텐츠 경험 친구, 그리고 가부장가정 요인을, 그리고 통제요인들로는 도덕태도, 공식처벌, 기회제약을 다뤘다. 그리고 세 원인요인들의 영향에 대한 세 통제요인들의 조절 혹은 완충효과를 살펴보았다. 서울시 대학생을 조사대상으로 하는 분석결과 대체로 불법 성콘텐츠 접촉과 불법 성콘텐츠 유통에서 그 원인요인들의 작용은 유사해 낮은 자기통제력, 불법 성콘텐츠 경험 친구, 그리고 가부장가정 모두가 크게 유의미했고 그 중에서도 불법 성콘텐츠 경험 친구와의 접촉의 영향력이 가장 컸다. 불법 성콘텐츠 접촉 및 유통에 대한 원인요인들과 통제요인들의 상호작용효과에 대한 결과를 보면 그 결과가 상이했다. 불법 성콘텐츠 접촉의 경우 원인요인들과 통제요인들과의 상호작용효과가 모두 유의미하지 않았다. 즉 불법 성콘텐츠 접촉에서는 원인요인 모두가 독립적으로만 유의미하게 작동했으며 그 작용을 어떠한 통제요인들도 통제하지 못했다. 그러나 불법 성콘텐츠 유통의 경우는 낮은 자기통제력과 도덕태도간의 상호작용효과, 불법 성콘텐츠 유통 친구와 도덕태도간의 상호작용효과가 유의미했고, 가부장가정과 공식처벌간의, 그리고 가부장가정과 기회제약간의 상호작용효과가 유의미했다. 그 결과의 함의를 논의한다.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2009년도 추계학술대회 논문집
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• pp.227-227
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• 2009

To prevent such accidents, molded case circuit breakers with improved short-circuit current interrupting capacity are needed. This paper is focused on understanding the interrupting capability with respect to double contact structure and puffer assisted self quenching that are based on the shape of the contact system in the current molded case circuit breaker. The new arc quenching structure for increasing the interrupting capacity of molded case circuit breakers is investigated by simulation and experiment.

• Journal of Oral Medicine and Pain
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• 제10권1호
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• pp.33-39
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• 1985

Changes of occlusal contacts after E.M.G. biofeedback therapy with D.D.S. (Self control system, EMG 220, Sandiago California) was investigated in 20 SNUH students and residents with normal occlusion. Treatment time was 30 minutes on every subject. Occlusal contacts of before biofeedback therapy were taken at 4: 00 P.M. and that of after biofeedback therapy were taken at 4:40 P.M. Author compared the occlusal contacts before biofeedback therapy with that of after biofeedback therapy. The obtained results were as follow : 1. The number of occlusal contacts was 23.9, before biofeedback therapy and, 26.3, after biofeedback therapy. 2. The percentage of accentuated contact to diffuse contact was 78.5%, before treatment and 38.8% after treatment. 3. 6 heaviest contacts were changed 4.3 teeth per one subject after biofeedback therapy.

• 한국진공학회지
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• 제2권4호
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• pp.474-479
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• 1993

Submicron contact hole filling with aluminum alloys has been achieved with a multistep metallization method, which utilizes a metal " flow" or self-diffusion process at elevated temperatures after the metal was sputter-deposited. A multi-chamber, modular sputtering system was employed to deposit aluminum alloys and subsequently to anneal the deposited metal films under vacuum at high temperatures. The film were deposited on 200 mm wafers with planar, dc magnetron sputtering sources without anysubstrate bias. The basic process steps studied for the multistep metallization include an initial layer deposition at low temperatures less than $100^{\circ}C$, and an annealin gstep at elevated temperatures, between 450 and $550^{\circ}C$. The degree of planarization or step coverage was dependent strongly upon the temperature and time of the flow step and complete filling of the submicron contacts with aluminum alloys was achieved. Responsible mechanisms for the enhancement in step coverge and factros determining uniform and reproducible flow of aluminum alloys during the high temperauture step are discussed.discussed.

• 대한기계학회논문집A
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• 제32권2호
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• pp.143-147
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• 2008

Super-hydrophobic surfaces showed that contact angle of water was higher than 140 degrees. That surface could be made several methods such as Carbon nano tubes grown vertically, PDMS asperities arrays, hydrophobic fractal surfaces, and self assembled monolayers coated by CVD and so on. However, we fabricated super-hydrophobic surfaces with plasma treatments which were very cost efficient processes. Their surfaces were characterized by static contact angles, advancing, receding, and stability against UV irradiation. Optimal surfaces showed static contact angles were higher than 150 degrees. Super-hydrophobic property was remained after UV irradiation for one week.

• 한국학교보건학회지
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• 제20권2호
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• pp.59-68
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• 2007

Purpose: The purpose of this study was to investigate the difference of sexual behaviors of college students according to internet pornography contact. Methods: Subjects consisted of 472 students of K college located in chungcheongbuk-do. The data were collected through a self-administered questionnaire from May, 21 to May, 31, 2007. Results: Eighty-seven percent (87.3%) of respondents contacted internet pornography. As for the first time they contacted it, forty-eight percent(48.3%) contacted it when they were middle school students. Forty-three percent(43.6%) contacted it one time per several months and twenty-one percent(21.2%) contacted it within 10 minutes. Sexual behaviors(hand grasping, hugging, kiss, masterbation, coitus, pregnancy, love expression in public place) showed significant differences according to Internet pornography contact experience, period, frequency, and time. Conclusion: College administration should investigate sexual behavior patterns according intemet pornography contact and provide all college students regular sexual health promotion program.

• Journal of Advanced Marine Engineering and Technology
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• 제30권8호
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• pp.863-869
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• 2006

A new CVT, the inner spherical traction CVT (ISCVT) is introduced. Transmission of the most scooters is the self-controlled variable pulley-belt type of CVT having some disadvantages in the fuel consumption and the limitation of the transmittable power due to the slippage between the belt and pulley. Unlike this, ISCVT controlled directly by driver is more efficient and the contact mechanism having the same line of contact normal of the spherical rotors of different radii on common center causes that the power density and torque capacity are remarkably improved. The prototype with the specifications of 50cc scooter is designed and tested.

• 한국생산제조학회지
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• 제21권1호
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• pp.95-101
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• 2012

An internal type roller ring gear(RRG) system composed of either a pin or a roller ring gear and its conjugated cam pinion can improve the gear endurance from that of a conventional gear system by reducing the sliding contact, while increasing the rolling motion. In this paper, we first proposed the exact cam gear profile and the self-intersection conditions obtained when the profile shift coefficient is introduced. Then, we investigated contact stresses and surface pitting life to fmd characteristics for surface fatigue by varying the shape design parameters. The results show that the pitting life can be extended significantly by increasing the profile shift coefficient.

• Journal of Advanced Marine Engineering and Technology
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• 제28권1호
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• pp.145-151
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• 2004

This paper proposes the calculation method of magnetic coupling coefficient of contact-less power supply by the 3D finite element method with a variation of the secondary core position. The primary, secondary self and leakage inductances and the capacitances of a resonant circuit are calculated by the finite element analysis results. The magnetic coupling coefficients are obtained also. The power factors are obtained by simulation for the magnetic coupling coefficients and compared.