• 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
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• 제10권2호
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• pp.107-115
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• 2004

In this paper, the all units of residential housing that is not legislated in facility development law are analyzed and foreign design criteria that is related to barrier-free unit housing is comparing to domestic. Through the comparison in front door, living room, bathroom, bedroom, and kitchen, this paper aims to suggest internal barrier-free design criteria. This paper is limited to internal housing which are front door, living room, bedroom, bathroom, and kitchen. Also, the objectives of facility development law are U.S, Japan, German, and in case of U.S, UFAS is established by ADA, in Japan, Heart Building law and detail standard drawing are used, in German, DIN is used. The objective of domestic case study is the latest residential housings that are built over 2003. The flow of study is as follows ; First, the internal items of residential housing are abstracted, and each item is checked in facility development law that is legislated in. Next, through comparison of domestic and foreign facility development law related to housing, common items are abstracted and detail standards are defined. Domestic residential housings are analyzed in those standards. Finally, the problems that is the result of analysis are analyzed and the barrier free design criteria is abstracted in unit housing. Also, more developed items and future study are suggested.

• 대한화학회지
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• 제23권1호
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• pp.20-29
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• 1979

과산화수소와 에탄의 integral rotation barrier의 원천적 요인을 결합 공간과 반결합 공간의 개념을 이용하여 연구하였다. internal rotation barrier는, 중심 원자의 존재로 인하여 천이밀도가 중심 원자가 없을 때보다 더 많이 반결합 공간으로 쏠림에 기인 함을 밝혔다. 이러한 천이밀도의 쏠림은 강한 O-H (또는 C-H) 결합에 의하여 내부 회전에 따른 전자밀도의 변화가 적어지는 것으로 설명할 수 있음을 보였다.

• 한국임상수의학회:학술대회논문집
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• 한국임상수의학회 2007년도 추계국제학술대회 및 컨퍼런스
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• pp.560-560
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• 2007

• 한국임상수의학회지
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• 제25권6호
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• pp.466-470
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• 2008

The purpose of this study is to investigate whether the effects of topically applied petrolatum and glycerin on the barrier repair of acetone-induced skin damage in 6 beagle dogs. To confirm the effects of petrolatum and glycerin on acetone disrupted skin models, we performed to evaluate the characteristics of transepidermal water loss and SC hydration and scanning electron microscopic observations. TEWL and SC hydration measurements were carried out 3, 6, 12, 24, 48h after applying petrolatum and glycerin during recovery from acute disruption. Our results showed that there were some different effects between petrolatum and glycerin on the acetone damaged skin such as barrier function repair process and SC hydration status. The results indicate that the significant improvement could be observed in glycerin apply more than petrolatum after acetone damages, and further study will be required.

• 반도체디스플레이기술학회지
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• 제21권1호
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• pp.39-43
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• 2022

In this paper, a study was conducted on encapsulation technology for high mechanical stability of flexible displays. First, unlike conventional encapsulation barrier that exclude cracks as much as possible for low water vapor transmission rate (WVTR), mechanical properties were improved by using a defect suppression mechanism introduced with crack arresters. The zero-stress encapsulation barrier optimizes the residual stress of the thin film based to improve the internal mechanical stability. The zero-stress encapsulation barrier was applied to the organic light emitting diodes (OLEDs) to confirm its characteristics and lifetime. Due to improved internal mechanical stability, it has a longer lifetime more than 35% compared to conventional encapsulation technologies. As the zero-stress encapsulation barrier proposed in this study does not require additional deposition process, it is not difficult to apply it. Based on various advantages, it is expected to play an important role in flexible displays.

• 동의생리병리학회지
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• 제27권6호
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• pp.710-716
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• 2013

The purpose of this study is to observe the movements of Five Mimic-Animal Boxing(FAB) by the "three barrier in the back" of Donguibogam. The subject of this study is observation of the movements of FAB according to practice. The term of training FAB is two years and six months. By the theory of "three barrier in the back" in Donguibogam, we analyzed the movements of FAB. The standard of judgement was the union of the basic point in the arm and leg & the action point in three barrier in the back. The study results were as follows. The movements of FAB operated on the three barrier in the back. The preliminary exercise operated on one, two, trree barrier in the back. And moreover the remainder exercise operated on one, two, trree barrier in the back. The movements of FAB operated on the three barrier in the back for the circulation of vital essence and energy. FAB is the very important Gigong exercise on opening the three barrier in the back.

• Bulletin of the Korean Chemical Society
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• 제13권1호
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• pp.65-70
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• 1992

The hindered internal rotation effect of methyl group on chemical reaction was studied for cis-trans isomerization reaction of 1-bromopropene system using RRKM technique. A comparative study of the isomerization rates was also performed between the rigid and allowed internal rotations. The calculated rate of rigid cis-trans isomerization of 1-bromopropene was shown to be three times higher than its other halogenated propene homologues with its internal rotations and found to be in good agreement with experimental observations. These findings could be explained reasonably well in terms of the differences of the rotational barrier heights among halogenated propenes and correlated with the relatively low internal rotation barrier of cis-1-bromopropene, 230 cal/mol, compared to those of other cis-1-halopropenes, 700-800 cal/mol, and trans-1-halopropenes, 2.0-2.4 kcal/mol.

• 경영과정보연구
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• 제36권2호
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• pp.223-237
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• 2017

전환장벽은 고객의 이탈을 막는다는 점에서 주로 긍정적인 측면이 강조되었으나, 최근에는 기업이 설정한 전환장벽이 장기적으로 해로울 수 있음이 논의되기 시작하였다(Jones et al. 2000; 정윤희, 2012). 전환장벽의 부정적 영향에 관한 기존연구에서는 전환장벽이 소비자의 전환의 자유를 방해한다는 점에서 부정적 심리반응을 이끌 수 있음은 보여주었으나, 당장 기업에 줄 수 있는 부정적인 영향에 대한 논의는 부족하였다. 따라서 본 연구에서는 전환장벽으로 인해 전환을 못하는 상황에 서비스 실패상황에 관한 연구를 적용하여 소비자들의 전환장벽에 대한 부정적 감정과 불평행동에 대한 연구를 진행하고자 하였다. 전환을 어렵게 하는 전환장벽의 귀인(내적 혹은 외적)에 따라 후회와 원망을 경험하게 되고 이는 수용, 불평행동, 부정적 구전으로 이어질 것으로 가정하였다. 구조방정식 모형을 이용해 가설 검증한 결과, 내적귀인은 후회에 긍정적 영향을 주고, 외적귀인은 원망에 긍정적 영향을 주는 것으로 나타났다. 그리고 후회는 수용과 불평행동에 영향을 주고, 원망은 불평행동과 부정적 구전에 긍정적 영향을 미침을 확인하였다. 이러한 결과는 전환장벽이 고객들의 부정적 감정과 불평행동을 이끌어 기업에 즉각적 피해를 줄 수 있음을 보여줌으로써 기존연구를 확장하고 있으며, 전환장벽에 대한 신중한 실무적 활용을 시사한다.

• Journal of Information Display
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• 제10권4호
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• pp.143-148
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• 2009

The theoretical current density equations for organic semiconductors was derived according to the internal carrier emission equation based on the diffusion model at the Schottky barrier contact and the mobility equation based on the field dependence model, the so-called "Poole-Frenkel mobility model." The electric field becomes constant because of the absence of a space charge effect in the case of a higher injection barrier height and a lower sample thickness, but there is distribution in the electric field because of the space charge effect in the case of a lower injection barrier height and a higher sample thickness. The transition between the injection- and bulk-limited currents was presented according to the Schottky barrier height and the sample thickness change.

• Restorative Dentistry and Endodontics
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• 제39권2호
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• pp.120-125
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• 2014

Use of an apical plug in management of cases with open apices has gained popularity in recent years. Biodentine, a new calcium silicate-based material has recently been introduced as a dentine substitute, whenever original dentine is damaged. This case report describes single visit apexification in a maxillary central incisor with necrotic pulp and open apex using Biodentine as an apical barrier, and a synthetic collagen material as an internal matrix. Following canal cleaning and shaping, calcium hydroxide was placed as an intracanal medicament for 1 mon. This was followed by placement of small piece of absorbable collagen membrane beyond the root apex to serve as matrix. An apical plug of Biodentine of 5 mm thickness was placed against the matrix using pre-fitted hand pluggers. The remainder of canal was back-filled with thermoplasticized gutta-percha and access cavity was restored with composite resin followed by all-ceramic crown. One year follow-up revealed restored aesthetics and function, absence of clinical signs and symptoms, resolution of periapical rarefaction, and a thin layer of calcific tissue formed apical to the Biodentine barrier. The positive clinical outcome in this case is encouraging for the use of Biodentine as an apical plug in single visit apexification procedures.