• 대한치과기공학회지
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• 제33권3호
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• pp.211-218
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• 2011

Purpose: The purpose of the study was a quantitative evaluation of common errors in digital impression procedure using CEREC$^{(R)}$ AC system. Methods: Two-hundreds digital impression data comprising 174 inlays, 26 onlays by CEREC$^{(R)}$ AC in-office CAD/CAM system were obtained from a dental clinic. One evaluator assessed errors of the digital impression data and divided into five categories of errors: inappropriate scanner positioning (ISP), improper handling with a scanner (IHS), irregular powder arrangement (IPA), improper cavity preparation (ICP), and insufficient scanned data (ISD). Results: The most common errors were IPA(21%), and ISP and ISD were followed by 17% respectively. IHS was found in 14.5% of all digital impression data. ICP comprising only 6.5% was the rarest. Conclusion: Most errors were due to inaccurate manipulation with an intraoral scanner or improper cavity preparation for scanning. A deliberate manipulation to prevent common errors mentioned may deliver an optimal result in the digital impression procedure.

• Food Science and Biotechnology
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• 제14권5호
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• pp.672-675
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• 2005

Two anthocyanins were isolated from 1% HCl-20% methanol extracts of KG 97287 black common bean (Phaseolus vulgaris L.) using semipreparative, high-performance liquid chromatography (HPLC). The anthocyanins were identified using a combination of LC/ES-mass spectrometry (MS) and spectroscopic methods of UV-Vis, $^1H-$ and $^{13}C-$ nuclear magnetic resonance (NMR). The chemical structures of these two anthocyanins were elucidated as delphinidin 3-glucoside and petunidin 3-glucoside and their contents in KG 97287 black common bean seed coats were determined to be $2.614{\pm}0.11$ and $0.167{\pm}0.01\;mg/g$, respectively. These contents were lower than reported internationally and we recommend the introduction into Korea of high anthocyanin varieties of black common bean.

• Journal of the Korean Data and Information Science Society
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• 제16권4호
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• pp.791-799
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• 2005

We consider two components parallel system in which the lifetimes have the bivariate Pareto model with bivariate random censored data. We assume that bivariate Pareto model is affected by common stress which is independent of the lifetimes of the components. We obtain estimators for the system reliability based on likelihood function and relative frequency. Also we construct approximated confidence intervals for the reliability based on maximum likelihood estimator and relative frequency estimator, respectively. Finally we present a numerical study.

• 대한안전경영과학회:학술대회논문집
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• 대한안전경영과학회 2009년도 추계학술대회
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• pp.549-555
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• 2009

The research proposes two calculation methods for estimating the overall, within and between standard deviation of population. These standard deviations can be used to evaluate the process capability and performance indexes. The guidelines for using $C_{PK}$ and $P_{PK}$ according to the pattern of common and assignable causes are presented.

• Journal of the Korean Data and Information Science Society
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• 제5권2호
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• pp.11-18
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• 1994

Sample sizes for experiments concerned with inference on R=Pr(X

• Nonlinear Functional Analysis and Applications
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• 제26권3호
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• pp.581-600
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• 2021

In this paper we obtain a unique common fixed point theorem for four self-maps which are involved in (𝜙, 𝜓)-weak contraction of a partially ordered b-metric space. The necessary condition has been given to a space for the existence of an unique common fixed of the maps. And our work changed conditions and nonlinear contraction, and search for the unique common fixed point of the maps.

• 대한수학회논문집
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• 제32권1호
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• pp.65-74
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• 2017

In this paper, we establish a unique common fixed point theorem for T-contraction of two self maps on generalized cone b-metric spaces with solid cone. The result of this paper improves and generalizes several well-known results in the literature. Two examples are also given to support the result.

• 대한수학회논문집
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• 제24권2호
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• pp.197-214
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• 2009

In this paper, we formulate the definition of compatible mappings of type (I) and (II) in intuitionistic fuzzy metric spaces and prove a common fixed point theorem by using the conditions of compatible mappings of type (I) and (II) in complete intuitionistic fuzzy metric spaces. Our results intuitionistically fuzzify the result of Cho, Sedghi, and Shobe [4].

• 생명과학회지
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• 제11권2호
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• pp.126-132
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• 2001

Effect of Quartz porphyty(QP) on functional and morphological changes of the liver and kidney was studied in male common finch and white java sparrow fed with the basal diet(Control group) or experimental diet containing 3.0% QP(QP group) for 14 days. There was not significantly different morphological change of the liver upon light microscopic examination in common finch and white java sparrow between control group and QP group. Morphological change of renal tissue upon light microscopic examination in common finch and white java sparrow was not also significantly different between control group and QP group. The concentrations of serum creatinine, blood urea nitrogen, and nric acid as renal functional parameters of common finch and white java sparrow were not significantly different in the both groups. The activity of glutamic oxaloacetic transaminase(GOT) as hepatic functional parameter in common finch was significantly higher in the QP group($\rho$<0.05), whereas the activity of glutamic pyruvic transaminase(GPT) as hepatic functional parameter in common finch was not significantly different in the both groups. The activities of GOP and GPT in white java sparrow were not significantly different in the both groups. The morphologic findings and functional parameters of the liver and kidney observed in common finch and white java sparrow fed with 3.0% QP diet showed evidence of slightly liver damage accompanied with increased release of enzyme and fatty change of the hepatocytes in common finch, suggested that the tissues in some animals can be damaged by feeding a diet supplemented with 3.0% QP.

• 한국산림과학회지
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• 제87권3호
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• pp.372-382
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• 1998

이 연구의 목적은 오래전부터 인정되어온 산하주민(山下主民)들의 관습적인 산림이용권이 일제하 산림소유권의 재편과정을 겪으면서 어떻게 처리되었는가를 밝히는 데 있다. "어느 지역의 주민이 집합체의 관계로 촌락공유림(村落共有林)이나 타인의 토지에서 초목, 야생물 및 토사의 채취, 방목 기타의 수익을 하는 권리"로 정의할 수 있는 관습적인 산림이용권은 총유(總有)와 특수지역권(特殊地役權)으로 구분할 수 있으며, 그러한 권리가 적용되는 산림을 촌락공유림(村落共有林) 및 특수지역림(特殊地役林)으로 구분할 수 있다. 이러한 관습적인 산림이용권은 삼림법(森林法)(1908), 삼림령(森林令)(1911), 조선임야조사사업(朝鮮林野調査事業)(1917~1924) 및 조선특별연고삼림양여사업(朝鮮特別緣故森林讓與事業)(1926~1934)을 거치면서 그 권리가 사유(私有) 또는 공유(公有)로 전환 해체되었다. 특히, 조선특별연고삼림양여사업(朝鮮特別緣故森林讓與事業)의 결과 관습적인 산림이용권은 소유권과 이용행태의 측면에서 큰 변화를 초래했다. 즉, 소유권이 공유(共有)(연고(緣故) 포함)에서 사유(私有) 또는 공유(公有)로 전환되었고 관습적인 산림이용권의 핵심내용인 집합체로서의 공장이용권이 해체된 것이다.