• 생약학회지
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• 제41권1호
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• pp.58-61
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• 2010

Medicinal plant Rehmanniae Radix has long been used as traditional herbal medicine in Korea. In this study, we investigated quantitative changes of marker substance 5-hydroxymethyl-2-furaldehyde (5-HMF) in Rehmanniae Radix Preparata fermented with Ganoderma lucidum, Paecilomyces japonica, honey, and Nuruk, using HPLC according to the Korean Pharmacopoeia. As a result, 5-HMF was decreased in SDT and SYT, and increased in SST and SNT, comparing with control group. Quantitative increasing of 5-HMF is not exactly in direct proportion with fermentation, and it is need further studies to elucidate mechanism of quantitative changes by converted and newly produced substances with fermentation.

• 생약학회지
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• 제30권1호
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• pp.48-53
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• 1999

Isolation and quantitative determination of costunolide from Saussurea lappa Clarke (Compositae) has been conducted by using HPLC method. Costunolide in an acetone extract from the crude drug was separated on a RP-18 column using a $MeOH-H_20$ mixture (65:35) as an eluent and the average content is about $1.32{\sim1.42%.$ The content of costunolide in dried extract was decreased by about 24% in seven days. However it showed a slight decrease in solution. It is highly recommended that quantitative determination of costunolide from Saussureae Radix should be conducted as early as possible after solvent extraction.

• 생약학회지
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• 제29권1호
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• pp.18-21
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• 1998

A method for isolation and quantitative determination of patchouli alcohol from Pogostemonis Herba (Pogostemon cablin) has been developed. Isolation of patchouli alcohol was achieved by column chromatography employing the normal-phase gradient separation system n-hexane-ether on silica gel column. The GC method for quantitative determination of patchouli alcohol provided a method for standardization of the raw drug. It suggested that the average content of patchouli alcohol in Pogostemonis Herba is about 0.26%.

• 한국콘텐츠학회논문지
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• 제9권4호
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• pp.142-153
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• 2009

많은 기업들이 ERP시스템 도입하여 사용함에 따라 ERP의 성과에 대한 관심이 증가하고 있으며, 객관적인 성과 측정의 필요성을 느끼고 있다. 본 연구는 국내 기업의 ERP 도입으로 인한 성과를 정성적인 성과와 정량적인 성과간의 상관관계를 분석하고자 한다. 즉, 본 연구는 ERP시스템 도입성과 측정을 위해 경영정보시스템 분야에서 주로 사용하고 있는 시스템 만족도 등과 같은 사용자에 의해 인지된 성과와 회계학에서 주로 사용되고 있는 ERP관련 정량적 성과 변수들 간의 관련성을 실증 분석하여, 두 변수 집단 간의 관련성을 검토하고자 한다. ERP의 정성적 성과를 분석하기 위해 시스템 품질, 정보품질, 업무의 만족도, 업무개선 정도 등의 변수를 사용하였으며, 정량적 성과를 분석하기 위해 재고자산회전율, 매출액 대비 재고자산, 매출액 대비 종업원 수, 매출액 대비 인건비, 총자산 순이익률 변수를 사용하였다. 실증분석 결과는 다음과 같이 요약될 수 있다. 첫째, ERP도입의 측면의 정성적인 성과 변수간의 상관관계는 통계적으로 유의하게 분석된 것이다. 둘째 정량적인 성과 변수간의 상관관계는 ERP 도입 전 후의 평균의 값을 통하여 ERP 도입의 성과를 분석한 결과 통계적으로 유의한 상관관계를 나타내고 있었다. 끝으로 정성적인 성과와 정량적인 성과의 상관관계는 통계적으로 유의하지 않은 상관관계로 분석되었다.

• Environmental Analysis Health and Toxicology
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• 제4권1_2호
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• pp.11-17
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• 1989

A quantitative analytical method of highly concentrated PCB is established in the research. With the quantitative analytical method PCB of insulating oil was examined. The following conclusions are derived from this research. 1. The recovery ratio was 95.7% with the quantitative analytical method, which indicates it can be used for the analysis of PCB. 2. PCB concentration of insulation oil in waste condenser was found to be 21.2% thru 13.85% , which was highly concentrated. 3. PCB insulation oil in waste condenser was same as PCB-42.

• Archives of Pharmacal Research
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• 제17권2호
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• pp.76-79
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• 1994

The concentration of styrne in blood of the occupationally syrene-exposed workers was checked by gas chromatographic headspace analysis. Mandelic acd in urine, that is a major metabolite of styrene, and hippuric acid wre also analyzed by high performance liquid chromatography. For the biological monitoring of styrene-exposed workers, the routine method of the quantitative determination of styrene nad its metabolites in the biolgical samples were studied.

• 정보관리학회지
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• 제27권4호
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• pp.309-328
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• 2010

이 연구는 2000년 이후 발표된 정보활용능력 분야의 국내 학위논문을 분석함으로써, 양적연구의 동향과 흐름을 분석하였다. 이를 위해 양적연구 동향을 분석하였다. 양적 연구를 위해 양적 연구 과정과 양적조사 관련 규정, 양적연구 관련 기술요소를 비교분석하였다. 또한, 각 요소 측정을 위해 5개 변인과 기준을 사용하였다. 이를 바탕으로 논문에 대한 연구주제, 조사방법, 표집방법, 표본대상, 표본크기에 대한 일반적 특징을 살펴보고, 이를 연도별, 전공별로 구분하여 측정변인에 대한 동향을 분석하였다. 또한 연구에서 사용한 통계분석방법을 목적에 따라 분류하여 연구목적에 따른 통계분석기법의 사용동향을 제시하였다.

• 기술혁신학회지
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• 제16권2호
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• pp.424-443
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• 2013

교육과학기술부와 한국연구재단은 창의적 도전적 연구를 적극 장려하고자 2012년 기초연구사업 중점 추진방향으로 '한국형 그랜트' 지원 방식을 도입하였으며, 이에 따라 연구자가 추후 과제 신청시 기존 연구수행 성과를 집중적으로 평가 받게 되었다. 이에, 선정평가에서 과제관리 및 종료평가에 이르는 전주기적 성과관리 시스템의 필요성이 크게 대두되었다. 본 연구에서는 전주기적 성과관리 시스템의 첫 단계로 분야별 연구실적의 정량적 가이드라인를 제시하여 연구역량평가의 보조적 수단으로 사용할 방안을 도출하고자 하였다. 그 결과, 상위그룹 간 비교 시에는 순위보정영향력지수(Ranked Normalized Impact Factor, rnIF), 하위그룹 간 비교 시에는 영향력지수(Impact Factor, IF) 또는 rnIF를 정량가이드라인으로 제안하였다. SCI급 논문 수는 동일 분류 내 위상비교 또는 동일 위상내 분류별 비교 등에 사용할 것을 제안하였다.

• Toxicological Research
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• 제34권4호
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• pp.303-310
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• 2018

The methods of applied genetic toxicology are changing from qualitative hazard identification to quantitative risk assessment. Recently, quantitative analysis with point of departure (PoD) metrics and benchmark dose (BMD) modeling have been applied to in vitro genotoxicity data. Two software packages are commonly used for BMD analysis. In previous studies, we performed quantitative dose-response analysis by using the PROAST software to quantitatively evaluate the mutagenicity of four piperidine nitroxides with various substituent groups on the 4-position of the piperidine ring and six cigarette whole smoke solutions (WSSs) prepared by bubbling machine-generated whole smoke. In the present study, we reanalyzed the obtained genotoxicity data by using the EPA's BMD software (BMDS) to evaluate the inter-platform quantitative agreement of the estimates of genotoxic potency. We calculated the BMDs for 10%, 50%, and 100% (i.e., a two-fold increase), and 200% increases over the concurrent vehicle controls to achieve better discrimination of the dose-responses, along with their BMDLs (the lower 95% confidence interval of the BMD) and BMDUs (the upper 95% confidence interval of the BMD). The BMD values and rankings estimated in this study by using the EPA's BMDS were reasonably similar to those calculated in our previous studies by using PROAST. These results indicated that both software packages were suitable for dose-response analysis using the mouse lymphoma assay and that the BMD modeling results from these software packages produced comparable rank orders of the mutagenic potency.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2004년도 ICCAS
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• pp.1319-1323
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• 2004

In this paper, a problem of Thai sign language recognition using a neural network is considered. The paper addresses the problem in classifying certain signs conveying quantitative meaning, e.g., large or small. By treating those signs corresponding to different quantities as derived from different classes, the recognition error rate of the standard multi-layer Perceptron increases if the precision in recognizing different quantities is increased. This is due the fact that, to increase the quantitative recognition precision of those signs, the number of (increasingly similar) classes must also be increased. This leads to an increase in false classification. The problem is due to misinterpreting the amount of quantity the quantitative signs convey. In this paper, instead of treating those signs conveying quantitative attribute of the same quantity type (such as 'size' or 'amount') as derived from different classes, here they are considered instances of the same class. Those signs of the same quantity type are then further divided into different subclasses according to the level of quantity each sign is associated with. By using this two-level classification, false classification among main gesture classes is made independent to the level of precision needed in recognizing different quantitative levels. Moreover, precision of quantitative level classification can be made higher during the recognition phase, as compared to that used in the training phase. A standard multi-layer Perceptron with a back propagation learning algorithm was adapted in the study to implement this two-level classification of quantitative gesture signs. Experimental results obtained using an electronic glove measurement of hand postures are included.