• 한국조리학회지
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• 제10권2호
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• pp.107-120
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• 2004

점진적으로 식품에서도 건강지향성 및 패션성을 추구하는 시대조류에 발 맞추어 과거 드레싱의 대명사로 불려오던 마요네즈가 퇴조해가면서 그 대용품의 개발이 절실히 요청되고 있다. 이에 본 연구에서는 일반적으로 조미료의 일환으로 흔히 사용되는 간장, 식초, 마늘 등 총 13종의 원료를 이용하여 고추조미유, 조미간장, 조미액, 조미유를 제조하고, 이를 혼합하여 새로운 형태의 드레싱오일을 제조하였다. 야채류, 피자류, 육류 등에 대한 관능검사 결과 특성화가 요망되었으며, 따라서, 여기에 각종 기능성 원료를 첨가한 고추 드레싱오일, 당뇨병 환자용, 성인병 환자용, 어린이용, 일식용, 일반인 대상 기능성 드레싱오일 등의 제조에 관하여 검토하였다. 뿐만 아니라 이 드레싱오일은 상층부의 기름층과 하층부의 조미간장층을 흔들어 섞어서 사용하는 특성상 중간에 미관상 좋지 않을 층이 생성되는 문제점이 발생하였다. 이는 gum류 및 유화제를 겸용하여 어느 정도 해결이 가능한 것으로 밝혀졌다.

• 연구논문집
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• 통권28호
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• pp.59-71
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• 1998

The ELID(electrolytic in-process dressing) grinding method is a new precision grinding technique with the special electrolytic in-process dressing by metal bonded grinding wheel, fluid, and power supply. It is possible to make a efficient precision machining of hard and brittle materials such as ceramics, hard metals, and quenched steels by using this method, In this study, a new efficient precision grinding method with ELID was attempted for application to the machining and finishing processes of cylindrical structural components. And, we try to develop the cylindrical grinding technique for mirror surface of ceramics, tungsten carbide and SCM steel, and for the high efficiency grinding of machined parts, for example, ball screw shaft. Electrical characteristics of three different wheel grit sizes of #325, #2000 and #4000 were investigated experimentally. ELID grinding method is proved to be useful for mirror surface generation and efficient machining.

• 한국공작기계학회:학술대회논문집
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• 한국공작기계학회 2000년도 춘계학술대회논문집 - 한국공작기계학회
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• pp.459-464
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• 2000

In this paper, it verifies the relationships between wheel velocity and surface roughness with the mirror surface grinding using electrolytic in-process dressing (ELID). In the general, as wheel velocity is high, surface roughness is better on the base of grinding theory. However, the relationships between wheel velocity and surface roughness is undefined due to the effect of electro-chemical dressing and the characteristics of materials. According to above relationships, ELID grinding experiment is carried out by following the change of wheel velocity. As the result of this study, it is found that surface roughness is not better as linearly as the increase of wheel velocity, but the limit of wheel velocity exists according to the characteristics of materials. Also, in contradiction to the present trend of high wheel velocity of manufacturing system for high surface integrity, it is able to expected to the base on the development of new ultra precision grinding method with the practicality of mirror surface grinding using ELID grinding method.

• 대한기계학회논문집
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• 제17권12호
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• pp.2962-2969
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• 1993

Recently, a study on the mirror-like surface grinding of brittle materials is active and as branch of these study, new dressing method for superabrasive wheel, electrolytic inprocess dressing(Elid) was developed. Using Elid, the mirror-like surface of brittle material can be generated without polishing or lapping process. In the future, Elid grinding will take important place in industry. But so far the analysis on Elid grinding was not quantitative but qualitative. In this study, The purpose is the quantitative analysis on Elid grinding by computer simulation, For computer simulation, the mean and the variance of the abrasive distribution were measured by tracing of the grinding wheel with stylus in transverse direction in the case of respective dressing current condition. This measurement result in a density distribution of abrasive by mathematical formulation using statistical method. The prediction of the surface roughness in Elid grinding was based on this density distribution.

• Archives of Reconstructive Microsurgery
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• 제20권1호
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• pp.26-31
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• 2011

Purpose: We compared wound healing between the conventional tie-over dressing and silicone sheeting after skin grafting in patients with skin defects. Materials and Methods: Of a total of 30 cases of skin defects, 15 underwent conventional tie-over dressing and the remaining 15 underwent silicone sheeting skin grafting, we compared hematoma formation and infection status between the 2 techniques 1 and 2 weeks after operation Results: Hematoma was not observed in all cases. The wound infection rate decreased in silicone group. Conclusions: Silicone sheeting skin graft may be helpful in reducing wound infection.

• International Journal of Precision Engineering and Manufacturing
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• 제1권1호
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• pp.127-132
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• 2000

A highly efficient mirror surface grinding technology has been developed for hard and brittle materials various metal materials, by employing the ELID (electrolytic in-process dressing) grinding method using metal bonded grinding wheels. In this research, some typical applications of ELID-grinding for cylindrical grinding are introduced and the mirror grinding characteristics are investigated. Good results are obtained in the grinding of ceramics and tungsten carbide.

• International Journal of Precision Engineering and Manufacturing
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• 제9권3호
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• pp.3-6
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• 2008

Electrolytic in-process dressing (ELID) grinding is a new technique for achieving a nanoscale surface finish on hard and brittle materials such as optical glass and ceramics. This process applies an electrochemical dressing on the metal-bonded diamond wheels to ensure constant protrusion of sharp cutting grits throughout the grinding cycle. In conventional ELID grinding, a constant source of pulsed DC power is supplied to the ELID cell, but a feedback mechanism is necessary to control the dressing power and obtain better performance. In this study, we propose a new closed-loop wheel dressing technique for grinding wheel truing that addresses the efficient correction of eccentric wheel rotation and the nonuniformity in the grinding wheel profile. The technique relies on an iterative control algorithm for the ELID power supply. An inductive sensor is used to measure the wheel profile based on the gap between the sensor head and wheel edge, and this is used as the feedback signal to control the pulse width of the power supply. We discuss the detailed mathematical design of the control algorithm and provide simulation results that were confirmed experimentally.

• 폴리머
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• 제30권3호
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• pp.259-265
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• 2006

손상된 조직의 재생을 촉진시키는 여러가지 성장인자를 함유한 소장점막하조직(small intestinal subucosa, SIS)과 드레싱 교체시 손상된 피부로부터 박리가 용이한 수화젤 특성을 갖는 PVA를 이용하여 창상 치유를 촉진시키고 박리가 용이한 드레싱을 제조하였다. SIS 시트를 2, 4 및 10 wt%로 제조한 PVA 용액에 침지시킨 후 각기 다른 몰드에서 동결건조함으로써 PVA가 코팅된 SIS 시트를 제조하였다. 제조한 시트는 인장시험을 통해 기본 물성을 평가하였고, 분해도, 물 흡수성, 그리고 in vitro 실험을 통해 그 특성을 조사하였다. PVA를 코팅한 SIS(PVA-SIS) 시트의 인장강도와 신장률은 PVA의 함량이 증가함에 따라 각각 감소, 증가하였으며, 분해도는 본래의 SIS에 비해 감소하였고, SIS에 2 및 4 wt%의 PVA가 코팅되었을 때 물 흡수성이 증가하였다. 또한 전 PVA-SIS 시트에서 세포부착도가 본래의 SIS 시트에 비해 낮음을 확인하였다. 이로써 PVA를 코팅한 SIS 시트가 창상 치료를 위한 드레싱제와 생분해성 이식 제제로서 사용가능하리라 판단되었다.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 1995년도 추계학술대회 논문집
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• pp.57-60
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• 1995

Recently, ELID (electrolytic in-process dressing) grinding technique is developed. It is possible to make a efficient precision machining of hard materials such as ceramic hard metals, and quenched steels. This paper deals with some typical applications of ELID-grinding for cylindrcal machining. The significant advantages, performance and characteristics on mirror surface grinding for external surface are described.

• 구강회복응용과학지
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• 제36권1호
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• pp.21-28
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• 2020

목적: 치주포대는 감염 위험을 줄이고 치유를 증대 시킨다는 연구들이 있다. 본 연구는 치주 수술 후 부착형 창상 피복재의 사용이 치유 및 수술 만족도에 미치는 영향을 평가하고자 하였다. 연구 재료 및 방법: 치주 수술이 필요한 환자 28명을 대상으로 상악 또는 하악의 양측 사분면에 치주 수술을 시행하였다. Visual Analogue Scale (VAS)를 이용해 술 후 동통, 출혈, 식이 불편감, 지각 과민을 평가하고 추가적으로 작열감과 수술 만족도에 관해 평가하였다. 결과: 수술 후 동통, 출혈, 식이 불편감에 관한 VAS 평균 값은 창상 피복재 유무에 따라 각각; 동통: 2.82, 3.96 (P = 0.002), 출혈: 1.61, 2.54 (P = 0.008), 식이 불편감: 2.82, 4.18 (P < 0.001)로 창상 피복재를 적용한 그룹에서 불편감이 적었으며, 통계적으로 유의하였다. 작열감, 지각 과민과 창상 피복재 적용 유무 사이에 유의한 차이는 없었다. 수술 만족도는 75%에서 창상 피복재를 사용한 경우 높았다. 결론: 본 연구의 결과에 따르면, 창상 피복재의 사용유무와 작열감, 지각 과민과의 통계적 유의성은 없었으나 창상 피복재를 사용한 경우 술 후 동통, 출혈, 식이 불편감이 적었다.