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- 저자 : 김익환(Kim, Ik Hwan) (검색결과 217 건)
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김익환,김창용,김경희,허준영,옥수민,정성희,안용우,고명연,Kim, Ik-Hwan,Kim, Chang-Yong,Kim, Kyung-Hee,Huh, Joon-Young,Ok, Soo-Min,Jeong, Sung-Hee,Ahn, Yong-Woo,Ko, Myung-Yun 대한안면통증구강내과학회 2011 Journal of Oral Medicine and Pain Vol.36 No.4
Personal characteristics of female lichen planus patients were analyzed psychologically using the SCL-90-R. The subjects were 51 female lichen planus patients who visited Orofacial pain clinic of the Department of Oral Medicine, Pusan National University Yangsan Dental Hospital from 2009 to 2010. The female control group were collected from Pusan Kyungnam area. 45 female burning mouth syndrome patients, 36 female temporomandibular joint disorder patients, 23 female trigeminal neuralgia patients were subjected at Orofacial pain clinic of the Department of Oral Medicine, Pusan National University Hospital from 1998 to 2010. 1. Lichen planus patients group, burning mouth syndrome patient group, temporomandibular joint disorder patients group, trigeminal neuralgia patients group and the control group were within normal range. 2. The T-Scores of O-C, IS, DEP, ANX, HOS, PHOB in lichen planus patients group were significantly higher than in the control group. 3. The T-Scores of O-C, IS, DEP, ANX, PAR, PSY in chronic group was significantly higher than in acute group. 4. The T-Scores of SOM, O-C, DEP, ANX, in burning mouth syndrome patients group was significantly higher than in lichen planus patient group. 5. There was no significant T-score difference between lichen planus group and temporomandibular joint disorder patient group. 6. There was no significant T-score difference between lichen planus group and trigeminal neuralgia patient group.
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현호색, 창출, 천수근 약욕이 체성내장통에 미치는 영향
김익환,이택현,김창주,이충열,Kim, Ick-Hwan,Lee, Taeck-Hyun,Kim, Chang-Ju,Lee, Choong-Yeol 대한동의생리학회 2006 동의생리병리학회지 Vol.20 No.6
As an effective non-pharmacological method of pain relief, hydrotherapy was widely used. And bath additive has been used for enhancing the efficacy of hydrotherapy, In the present study, as a bath additive, the analgesic activity of HAC, which composed of Corydalis turtschaninovii, Atractylodes japonica, and Harpagophytum procumbens(HAC), was investigated in the ventrolateral periaqueductal gray (VIPAG), lateral PAG (IPAG), central nuclei of amygdala (CeA), and the paraventricular nucleus of the hypothalamus (PVN) in mice, using writhing test and immunohistochemistry for c-Fos. Male C57BU6 mice weighing $25{\;}{\pm}{\;}2g$ (8 weeks of age) were used for this experiment. The animals were divided into five groups: the control group, the acetic acid treatment group, the acetic acid treatment and 0.01 g/L HAC-immersed group, the acetic acid treatment and 0.1 g/L HAC-immersed group, and the acetic acid treatment and 1.0 g/L HAC-immersed group. To induce somato-visceral pain in the experimental animals, a single intraperitoneal (i.p.) injection of acetic acid was administrated to each animal, and the animals of the control group received injections of equivalent doses of normal saline. The animals of the HAC-immersed groups were immersed the water with HAC powder at the respective doses deep enough to cover the mice body, and those of the control group and the acetic acid treatment group immersed the water without HAC powder at 10 min immediately after the acetic acid injection. Our present study has shown that the HAC reduced the acetic acid-induced abdominal constrictions and the acetic acid-Induced increase of numbers of c-Fos-positive cells in the VIPAG, IPAG, PVN, and CeA. The most potent analgesic effect appeared with the treatment of 1.0 g/L KB-immersed group. Based on our present results, it is very possible that HAC can be a potent therapeutic bath additive for alleviating pain without the fear of addiction to the drugs and side-effects associated with the prescription of multiple analgesic drugs.
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김익환,장한섭,김영민,Kim, Ick-Hwan,Jang, Han-Seub,Kim, Yung-Min 한국주거학회 2007 한국주거학회 논문집 Vol.18 No.2
In the suburbs near the capital area in Korea, many apartment house complexes are dotted that encircled by field. These apartment house complexes encircled by field, have not park and are abutting on the field, unlike large scale new town. This study is aimed to clear the characteristic of field around these apartment house complexes, consists in development the suburbs near the capital area. As a method of study we conducted greenery evaluation from view of Inhabitant by questionnaire survey. We concluded as follows: inhabitants attach importance to the nature around apartment house complex when move into that; inhabitants are satisfied and feel nature about the field; inhabitants tend to take field as a sight; inhabitants need low-rise development for harmony with field.
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산업용 로봇 제어를 위한 Preempt-RT 기반 멀티코어 모션 제어기의 구현 및 성능 평가
김익환,안효성,김태현,Kim, Ikhwan,Ahn, Hyosung,Kim, Taehyoun 대한임베디드공학회 2017 대한임베디드공학회논문지 Vol.12 No.1
Recently, with the ever-increasing complexity of industrial robot systems, it has been greatly attention to adopt a multi-core based motion controller with high cost-performance ratio. In this paper, we propose a software architecture that aims to utilize the computing power of multi-core processors. The key concept of our architecture is to use shared memory for the interplay between threads running on separate processor cores. And then, we have integrated our proposed architecture with an industrial standard compliant IDE for automatic code generation of motion runtime. For the performance evaluation, we constructed a test-bed consisting of a motion controller with Preempt-RT Linux based dual-core industrial PC and a 3-axis industrial robot platform. The experimental results show that the actuation time difference between axes is 10 ns in average and bounded up to 689 ns under $1000{\mu}s$ control period, which can come up with real-time performance for industrial robot.
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안드로이드 플랫폼에서 유연한 응용프로그램 권한관리 기법 설계 및 구현
김익환,김태현,Kim, Ik-Hwan,Kim, Tae-Hyoun 한국정보처리학회 2011 정보처리학회논문지 C : 정보통신,정보보안 Vol.18 No.3
대표적인 스마트폰 플랫폼의 하나인 구글 안드로이드는 응용프로그램 권한기반 보안모델을 채택하고 있다. 이는 응용프로그램의 시스템 자원에 대한 부적절한 접근을 제한하여 보안위협을 줄이기 위한 방법이지만 권한의 선택적 허용이 불가능한 점, 한번 권한이 부여된 경우 이를 되돌릴 수 없는 점, 사용자 ID 공유에 따른 권한의 공유를 사용자가 알 수 없는 점 등 문제점이 존재한다. 본 연구에서는 기존 안드로이드 보안 모델의 한계점을 개선하기 위해 사용자가 응용프로그램이 요구하는 권한을 유연하게 설정할 수 있는 기법을 설계, 구현하였다. 본 연구에서 제안한 기법의 설계목표는 기존 보안모델의 수정을 최소화하면서 보안성과 사용자 편의성을 향상하는 것이며, 구현된 기법의 동작 검증은 안드로이드 에뮬레이터 상에서 실제 응용프로그램 수행을 통해 이루어졌다. Google Android, which is one of the popular smart phone platforms, employs a security model based on application permissions. This model intends to reduce security threats by protecting inappropriate accesses to system resources from applications, but this model has a few problems. First, permission requested by an application cannot be granted selectively. Second, once the permission has been granted it is maintained until the application is uninstalled. Third, applications may acquire powerful permissions through user ID sharing without any notice to users. In order to overcome these limitations, we designed and implemented a flexible application permission management scheme. The goal of our scheme is to enhance security and user convenience while keeping compatibility to original platform. We also verified the operation of our scheme with real applications on Android emulator.
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김익환,김천일,Kim, Ick-Hwan,Kim, Cheon-Il 한국교육녹색환경연구원 2013 교육·녹색환경연구 Vol.12 No.3
This study is to analyze the satisfaction and the image evaluation of landscape elements in outdoor space by types of the university campus. The results are as follows. 1) Out of outdoor elements at university campus, planting area, resting area, access road, and water feature are recognized as major landscape elements. Among them, planting area and access roads are evaluated low in terms of satisfaction levels, therefore, improvement on these elements are required. 2) In outdoor space image evaluation, university campus has image such as 'simple', 'clear', and 'safe'. By scale of universities, both 'A' university, which is the biggest in terms of size of campus, and 'B' university, which has a medium sized campus, have a positive image. However, 'C' university, which is the smallest in terms of size of campus, has a passive and negative image. 3) 6 factors are extracted through Factor Analysis for image evaluation. All of the universities show positive image in the categories of 'clarity' and 'familiarity', however, 'B' university and 'C' university show negative image in the category of 'scale'. 4) In Correlation Analysis between landscape elements satisfaction level and image evaluation, it is showed that the group of landscape facility becomes a relation factor of overall image evaluation. As a result, the higher satisfaction level goes, the better image evaluation of overall outdoor space at university campus is.
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