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ILP 프로세서에서 2-단계 데이터 값 예측기의 Aliasing에 대한 효과
박희룡,전병찬,이상정 순천향대학교 부설 산업기술연구소 1998 순천향 산업기술연구소논문집 Vol.4 No.2
To exploit instruction level parallelism(ILP) in ILP processor, it is necessary to overcome the limits of data dependency among instructions. The data value prediction is a method to remove the limitation. In this paper, two-level data value predictor and hybrid data value predictor are studied. And the performance of those schemes are compared and analyzed. Also, the effects of aliasing on PHT(Pattern History Table) are measured and analyzed. As a result of experiment, it is shown that is there ware occurred aliasing of about 88%-98% in two-level and hybrid predictor. But the aliasing's hit ratio is reduced about 50% when XOR was applied on PHT.
레이저형광측정을 통한 DIAGNODENT의 우식진단에 관한 생체와 연구
박종석,이광희,김성형,김대업 大韓小兒齒科學會 2000 大韓小兒齒科學會誌 Vol.27 No.1
새로운 레이저형광측정기술을 사용한 Diagnodent의 우식진단능력을 탐침을 사용하는 시진법 및 일반적 방사선사진촬영법과 비교하여 평가하기 위하여, 건전하거나 열구우식이 있는 발거된 대구치와 소구치 103개를 대상으로 위의 세 가지 방법의 검사를 각각 시행하고 그 성적을 비교하였다. 시진 및 방사선검사 성적이 증가할수록 Diagnodent성적도 함께 증가하는 분포를 나타내었다(P<0.01). 시진 성적과 Diagnodent 성적간에는 피어슨 상관계수 0.676, 스피어만 순위상관계수 0.694의 상관성이 있었고, 방사선검사 성적과 Diagnodent 성적간에는 각각 0.623,0.658의 상관성이 있었다(P<0.01,전체). Diagnodent 검사법은 민감도가 매우 높은 것으로 나타났으나, 가양성의 측정치가 많아 특이도가 낮게 나타났으며, 우식단계별 진단기준을 제시하기 위하여는 더 많은 연구가 필요하다고 평가되었다. The purpose of study was to compare the laser fluorescence detection by Diagnodent (KaVo. Germany). visual inspection using dental explorers, and conventional dental radiography as diagnostic tests for dental caries. One hundred and three human premolars and molars which had no caries or fissure caries were tested by the three methods. Diagnodent scores increased as the scores of the other two tests increased(P<0>01). There were significant relationships between visual inspection scores and Diagnodent scores (Pearson 0.676. Spearman 0.694) and between radiography scores and Diagnodent scores(Pearson 0.623. Spearman 0.658) (P<0.01. all.> Diagnodent test proved to have high sensitivity and low specificity and more studies are necessary to present the diagnostic criteria for progressive caries stages.
정체성과 개방성이 소셜 네트워크 서비스 사용의도에 미치는 영향: 친밀감 대인관계 과정 모델을 중심으로
전유희 ( You Hee Joun ),이대용 ( Dae Yong Lee ),정남호 ( Nam Ho Chung ),구철모 ( Chu Lmo Koo ) 한국지식경영학회 2014 지식경영연구 Vol.15 No.2
In this study we adopted Interpersonal Process Model of Intimacy to study SNS use intention. First, we investigated the effects of personal identity, social identity and intimacy. Second, we tested the influences of self-disclosure, partner disclosure on perceived partner responsiveness. Third, we measured the relationship between perceived partner responsiveness and intimacy. Lastly, we investigated the effects of intimacy, perceived partner responsiveness and use intention. A total of 232 final respondents were collected from users of Social Network Services in 2011. The results revealed several important findings. First, we found that social identity had a significant and positive effect on intimacy. However, personal identity showed insignificant effect toward intimacy. Moreover, self-disclosure and partner disclosure had a positive effects on perceived partner responsiveness. Perceived partner responsiveness showed a positive effect on both intimacy and use intention. Lastly, intimacy had significant effect on use intention.
주부들의 시간부족지각이 기능성 화장품 구매행동에 미치는 영향
정순희,백숙현 이화여자대학교 생활환경대학 인간생활환경연구소 2004 인간생활환경연구소 논집 Vol.- No.2
This study is to investigate married women's perception on tmited time with a variable of time, to find its effects on their cosmeceuticals purchase behavior, and to understand what influences customer resources have on customers purchase behaviors, in order to understand customers purchase behavior. the main results of this study were as following : First, when it divided into groups by married women's difference in perception on shortage of time, it was found variables, such as employment, type of occupation, household income, and academic attainments, to have significant relations with a group of limited time. Second, at the phase of problem recognition, information search, alteration search and purchase, there was significant difference. For cosmeceuticals attributes by product group, there was significant difference between groups. It was found that basic-care and slim-care cosmetics were of more importance for a group of enough time rather than for a group of limited time, while UV-care, whitening-care, hair-care, and aroma-care toiletries were more valued by a group of limited time.
A retrospective study on survival rates of dental implants in elderly patients
Hee-Jong Shin,Sang-Joun Yu,Byung-Ock Kim 대한치과의사협회 2015 대한치과의사협회지 Vol.53 No.5
목적: 노인 환자에서 식립된 임플란트의 생존율을 조사하고 다양한 요인에 따라 생존율에 미치는 영향을 후향적으로 평가하고자 하였다. 재료 및 방법: 2001년 1월부터 2007년 12월까지 조선대학교 치과병원 치주과에 내원한 65세 이상 노인 환자 56명에게 식립된 138개의 임플란트를 대상으로 하였다.(남자 38명, 여자 18명, 평균 연령69.38 ± 3.91세) 임플란트 생존율은 환자 성별 및 연령, 전신질환 유무, 치아 상실 원인, 식립 위치, 임플란트 직경 및 길이, 골질, 골이식 여부, 상부 보철물 유형에 따라 조사되었다. Kaplan-Meier survival analysis을 통해 각 요인에 따른 누적 생존율을 조사하였고, chi-square test를 통해 누적 생존율과 각각의 요인 간의 통계학적 유의성을 평가하였다. 결과: 보철물 시적 후 5 ~ 140개월 간 추적 관찰을 시행하였다. 65세 이상 노인 환자 56명에게 식립된 총 138개의 임플란트 중 추적 관찰 기간 동안 5개의 임플란트가 실패하였다. 그 중 63개의 임플란트는 환자가 정기적인 내원 약속에 응하지 않아 도중에 조사대상에서 제외되었으며, 결과적으로5년간 누적 생존율은 94.9%였다. 임플란트 생존율에 영향을 미치는 다양한 요인 중 골질 (P=0.037) 및 상부 보철물 유형 (P=0.015) 간에 누적 생존율이 통계적으로 유의한 차이가 있었다. 그외 연령, 성별, 전신질환 유무, 치아상실 원인, 식립 위치, 임플란트 직경 및 길이, 골이식 유무 관련 요인과 누적 생존율 사이에는 통계적으로 유의한 차이가 없었다. 결론: 여러 한계가 있었지만 노인 환자의 무치악 부위에 있어 임플란트는 장기간에 걸쳐 예지성 있고 받아들여질 만한 치료이면서 적은 합병증과 실패율을 가진다.
임플란트 2차 수술 시 porcine collagen matrix 이식을동반한 근단변위판막술의 임상적 평가 증례보고
신희종 ( Hee Jong Shin ),이원표 ( Won Pyo Lee ),정명진 ( Ming Zhen Zheng ),송현종 ( Hyun Jong Song ),유상준 ( Sang Joun Yu ),김병옥 ( Byung Ock Kim ) 조선대학교 치의학연구원 2014 Oral Biology Research (Oral Biol Res) Vol.38 No.1
The significance of keratinized mucosa in implant maintenance is a controversial issue. As such, there is no consensus regarding the relationship between the width of keratinized mucosa and the health of peri-implant tissue. However, clinicians prefer to provide enough keratinized mucosa around implants for long-term implant maintenance and stabilization of the gingival margin position. The purpose of this case report is the clinical evaluation of an apically positioned flap with a porcine collagen matrix to provide keratinized mucosa and deepen the vestibule around implants during second stage implant surgery. In this case report, a clinically relevant amount of keratinized mucosa was achieved around implants and the vestibule was deepened. Thus, an apically positioned flap with a porcine collagen matrix is an available technique for providing keratinized mucosa and deepening the vestibule around implants during second stage implant surgery. This technique could be potentially used in routine autogenous or another graft procedures to provide keratinized mucosa around implants.
Lee, Joun-Ho,Son, Jung-Hee,Choi, Seong-Wook,Lee, Wa-Ryong,Kim, Kyung-Mi,Seok Yang, Jin,Chang Kim, Jae,Choi, Hyunchul,Lee, Gi-Dong Institute of Physics [etc.] 2006 Journal of physics. D, applied physics Vol.39 No.24
<P>In this paper we propose an optical configuration of a horizontal-switching liquid crystal (LC) cell with two positive C-plates and a single A-plate in order to improve the optical property in the diagonal direction, which is a weakness of horizontal-switching LC cells. The proposed configuration's optical design was performed on a Poincaré sphere with the trigonometric method. From calculations, we show that the proposed structure can increase the contrast ratio in the diagonal direction by about 10 times.</P>