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Analysis of Acrylamide Using Gas Chromatography–Nitrogen Phosphorus Detector (GC-NPD)
김심해,황준호,이광근 한국식품과학회 2011 Food Science and Biotechnology Vol.20 No.3
In this study, an improved analytical method for the quantification of acrylamide using a GC-nitrogen phosphorus detector (GC-NPD) was developed. This method showed reasonable recovery, sensitivity, and accuracy in monitoring acrylamide levels. The optimum solvent for the extraction of acrylamide was ethyl acetate. The linear response of acrylamide concentrations ranged between 0.5-100 ppm (μg/mL) with a correlation coefficient of 0.999. The limit of quantification (LOQ) was 0.5 ppm, and the recovery rate was 106±8%. The acrylamide level of fried potato sold in local restaurant was 2.7±0.3 ppm. Thus, a new protocol combining GC-NPD and LC-tandem mass spectrometry (MS/MS) could be applied to analyze acrylamide accurately and precisely, contributing to the development of a prescreening tool to analyze acrylamide in the food industry.
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노인용 당뇨치료제 안전사용설명서 개발 및 평가 : 수행능력 기반 사용자 평가 활용
김진,심해리,이인향 한국임상약학회 2017 한국임상약학회지 Vol.27 No.3
Objective: The study purpose was to develop a drug information leaflet for the elderly and to evaluate it with performance-based user-testing. Methods: We performed a stratified randomized controlled trial. We recruited 62 elderly patients with age of 65 or above who were taking antidiabetic medications at the point of participating and excluded those who suffered illiteracy. We randomly allocated them into the intervention group with a leaflet for the elderly and the control group with a leaflet for the general public. Main outcome measures were to ‘be able to find information’ and to ‘be able to understand information.’ We measured outcome variables by employing performance-based user-testing and analyzed data to find any differences between two groups with t-tests, chi-squared tests or Fisher’s exact tests accordingly. Results: More participants in the intervention group understood how to store their medications than those in the control group (intervention group 93% vs. control group 70%; p=0.02). There were no significant differences in other information items between two groups. Mostly ‘being able to understand information’ was lower than ‘being able to find information.’ The gaps between two outcome variables were about 10% in the intervention group and about 18% in the control group. The lowest understanding was observed in information relating to drug names and their potential adverse events. Conclusion: Without providing personalized drug information, it might be hard for the elderly to improve their drug knowledge even with leaflets that were developed specifically for the elderly.
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심해청(HaeChung Shim),김병만(ByeongMan Kim),김태남(TaeNam Kim) 한국정보과학회 1997 한국정보과학회 학술발표논문집 Vol.24 No.2Ⅲ
정보의 홍수 속에서 사용자가 원하는 정보를 쉽게 찾을 수 있도록 도와주는 검색 도구의 위치는 하루가 더하게 높아 가고 있다. 이러한 검색 도구들이 정보를 수집하기 위해 사용하는 웹 로봇(Web robot) 또한 로봇 에이젼트(Robot agent)라는 분야로 분류되어질만큼 중요한 위치에 서게 되었다. 그러나 이러한 웹 로봇은 쉽게 작성할 수 있다는 이유로 아주 작은 부분으로 취급되어 지기도 한다. 본 연구에서는 기존 웹 로봇들의 문제점을 알아보고, 그러한 문제점들을 보안한 웹 로봇의 구조와 IP class를 이용한 URL의 관리와 수행, 통계적 자료를 이용한 웹 서버로의 접근 방안 등을 제안한다. 제안된 방법을 사용한 경우 검색 도구와 같은 application의 질적 향상을 가져오게 되었으며, 기존 웹 로봇에 비해 넷트웍(Network)과 웹 호스트(Web host)에 가해지는 부하량은 줄어드는 효과를 낳았다.
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