• 제어로봇시스템학회논문지
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• 제16권6호
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• pp.608-616
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• 2010

Robot software components can be categorized into two types; the pure S/W component and the H/W-related one. Since interface testing of the robot software component is the labour-intensive and complicated work, an effective automated testing tool is necessary. Especially it is difficult to test all types of H/W-related components because it is hard work to prepare all H/W modules related to them. This paper proposes a new simulation-based interface testing automation tool(SITAT) which generates automatically test cases for interface testing of the robot software component and executes the interface test with the generated test cases where the simulator is used for simulation of the activity of a H/W module instead of the real H/W module. This paper verifies the effectiveness of the suggested SITAT with testing of the real H/W-related robot software component.

• 대한간호학회지
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• 제31권6호
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• pp.1098-1108
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• 2001

To evaluate the effects of planned visiting nursing services for homebound disabled persons in the community who have had a cerebrovascular accident Methods: One group pre-test and post-test research deign was applied to 61 disabled persons who were undergoing rehabilitation with visiting nursing services to evaluate the effects on the health status (SF-36) and activity daily living (ADL/IADL) from March to August, 2001. Results: The health status score by SF-36 of homebound disabled people was significantly improved; the average score was 28.56$\pm$21.24 before service, 34.29$\pm$22.30 at 3 months after, and 40.84$\pm$=27.41 at 6 months after. The activity daily living score by OASIS II was also significantly increased (z= -6.09, p=.000; z= -6.04, p= .000) at 3 months and 6 months after home visiting nursing services. Conclusion: The strategy plan for developing a visiting nursing service in health centers should be prepared to develop community based rehabilitation (CBR) programs as well as to improve the level of health status and ADL/IADL for homebound disabled people in the community.

• 약학회지
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• 제32권5호
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• pp.328-333
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• 1988

Based on the following tests with fractions extracted from organic solvents such as benzene, chloroform, ethyl acetate and methanol, this study is to analyse the antimutagenicity of Lonicerae Flos. When carrying out Ames test with Salmonella typhimurium strain, it seemed that there was stronger antimutagenicity in TA 100 treated by MNNG than did one in TA 98 by NPD, and that there was stronger antimutagenicity through base pair exchange than one through frame shift. In the umu test, each fraction tended to inhibit the activity of ${\beta}-galactosidase$ induced by AF-2. As shown in these above tests, the ethyl acetate fraction was the strongest among four fractions. On the other hand, its component consisted of luteolin, apigenin, chlorogenic acid and five unknown ingredients. Of these unknown ingredients, E, F strongly tended to inhibit the activity of ${\beta}-galacosidase$. In addition,there was also the decrease in its activity of apigenin, luteolin and chlorogenic acid.

• 지역사회간호학회지
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• 제23권3호
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• pp.296-306
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• 2012

Purpose: This study was conducted to measure the relationships between ecological factors and Navy personnel's physical activity (PA) based on McLeroy's Ecological model. Methods: A cross-sectional survey was conducted with a convenience sample of 184 Navy personnel working in 10 Navyships. A self-reporting questionnaire consisted of measures of intrapersonal, interpersonal, organizational and community factors related to Navy personnel` s PA. Data were analyzed by descriptive statistics, $x^2$-test, t-test, analysis of variance, and hierarchical multiple regression using SPSS/WIN 17.0 programs. Results: Their mean PA level was $2,848.1{\pm}3,344.5$ MET-min/week, and mostly moderate level (50.5%). Hierarchical multiple regression analysis showed that religion, working department, working type, perceived health status and community environment were significant PA correlates. Conclusion: Community environmental factors as well as intrapersonal factors were significantly associated with Navy personnel's PA, indicating that community health nurses should expand an approach for individual-level behavioral change to incorporate Navy personnel specific community environmental barriers into PA interventions.

• 정보교육학회논문지
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• 제13권2호
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• pp.225-236
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• 2009

개정된 정보통신기술 운영지침에 따르면 초등학교에서부터 알고리즘을 학습 내용으로 다루도록 하였으며 이에 따라 초등학교 현장에서도 알고리즘을 쉽고 효과적으로 지도하기 위한 다각적인 교육 방법 연구가 필요해졌다. 이에 본 연구 과정에서는 초등학교 저학년을 대상으로 알고리즘의 중요한 부분으로 인식되는 정렬 알고리즘을 학습 내용으로 선정한 후 활동을 통한 교수-학습 방법과 애니메이션 기반의 교수-학습 방법을 적용해보고 학습 효과를 비교 분석하는데 주안점을 두었다. 두 가지 방법으로 정렬 알고리즘 교수-학습을 적용한 후 별도로 제작한 학업 성취도 평가지와 설문지 분석 결과, 크게 두 가지 결론을 얻을 수 있었다. 첫째, 교수-학습 방법에 따른 학업 성취도에는 별다른 차이가 없었으나 초등학교 저학년 학생들도 정렬 알고리즘을 충분히 학습할 수 있다는 점과 둘째, 활동을 통한 알고리즘 교육이 애니메이션 기반의 정렬 알고리즘 교육에 비해 학생의 이해도, 흥미도 및 만족도 측면에서는 좀 더 효과적이라는 것을 알 수 있었다.

• 한국콘텐츠학회논문지
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• 제21권9호
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• pp.34-41
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• 2021

본 연구의 목적은 AI 스피커를 활용한 영어 말하기 수업과 활동이 초등영어학습자들의 정의적 특성과 학습 만족도에 미치는 영향을 살펴보기 위함이다. 총 46명의 초등영어학습자가 실험에 참여하였으며설문지를 사전-사후 배포하여 양적으로 분석하였다. 본 연구를 통해 밝혀낸 결과를 정리하면 다음과 같다. 첫째, AI 기반 영어 학습에 대한 전반적인 이해도 관련 수업 후 AI 기반 활동의 교육적 장점과 효능에 대한 인식이 넓어진 것을 알 수 있었다. 둘째, AI 기반 영어 말하기 활동에 대한 정의적 특성의 변화를 살펴본 결과 사전대비 사후의 평균값이 상승하고 대응표본 t-검정 결과 흥미도, 가치관, 태도 영역에 있어 유의미한 차이가 발견되었다. AI 활용 영어 학습에 대한 만족도를 살펴본 결과 실험 전에 비해 평균 만족도가 상승하고 특히 효능감, 학업 성취감 및 몰입도면에서 높은 상승을 보였다. 끝으로 AI 기반 영어 학습의 만족도과 정의적 특성 간의 상관관계를 분석한 결과 AI 기반 영어 학습에 대한 만족도는 학습자들의 자신감, 흥미도, 태도와 관련이 있는 것으로 나타났다.

• Toxicological Research
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• 제21권1호
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• pp.39-43
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• 2005

The present study was carried out to investigate the antibacterial activity against Staphylococcus aureus with antibiotic-resistance in vitro and the skin irritation in rabbits with surfactin produced by Bacillus subtilus Complex BC1212. The antibacterial activities of selected antimicrobial agents (surfactin, amoxacillin, colistin, norfloxacin and streptomycin) were evaluated by using the broth microdilution method. As the results, the minimum inhibitory concentration (MIC) of the surfactin was less than 15.6 ㎍/ml. In the skin irritation test, two out of 4 rabbits showed very slight edema at 24 h after the administration of surfactin, and then recovered at 72 h. The change of body weight was normal during the skin irritation test. The primary irritation index in accordance with the Draize evaluation of topical reaction was calculated to be '0.125', which meant not irritating. Based on these results, it could be concluded that the test agent, surfactin, was a non-irritant. We could also think that the surfactin may be useful for the treatment of S. aureus infections such as bovine mastitis.

• 문화기술의 융합
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• 제6권4호
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• pp.453-468
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• 2020

본 연구의 목적은 습관형성모델을 기반으로 간호대학 여학생의 신체활동 정도와 신체활동에 미치는 영향요인을 파악하여 간호대학 여학생의 신체활동 증진 및 유지 전략을 개발하는데 기초자료를 제공하기 위함이다. 연구대상은 J시에 소재한 G대학교와 J대학교에 간호학과에 재학중인 여학생 207명이었고, 자료수집 기간은 2020년 8월 31일에서 9월 13일까지였다. 자료 분석은 IBM SPSS Statistics Ver. 22.0 통계프로그램을 사용하여 빈도, 백분율, 평균, 표준편차, ANOVA 및 Scheffĕ test, Pearson's correlation coefficient, Univariate, and Multivariate multinomial logistic regression을 이용하였다. 연구결과 간호대학 여학생의 신체활동 정도는 평균 2506.31±2807.05 MET-min/week이었고 신체활동 분류기준에 따라 세 군으로 분류한 결과 건강증진 신체활동군은 59명(28.5%), 최소한 활동군은 98명(47.3%), 비활동군은 50명(24.2%)으로 나타났다. 다변량 로지스틱 회귀분석에서는 신체활동 습관강도가 간호대학 여학생의 신체활동에 유의한 영향요인으로 규명되었다. 따라서, 간호대학 여학생의 신체활동 증진 및 유지를 위해 습관형성 프로그램을 개발하고 효과를 검증하는 연구가 필요하다.

• 한국지역사회생활과학회지
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• 제15권2호
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• pp.101-107
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• 2004

Many studies have presented results about the antioxidative and antimicrobial activities of Dandelions(Taraxacum officinale). There has yet to be a study which makes comparisons based on the variety or parts of the Dandelion. To compare the physiological activity, antioxidative and antimicrobial activities were measured by using methanol extracts of Korean and Western Dandelions. The Dandelions were taken from Uiryeong in Kyungnam province, and antioxidative and antimicrobial activities of the flower, leaf and root were measured. Antioxidative activities of the methanol extracts were examined with a DPPH test. Antimicrobial activities were examined against 5 microorganisms. Bacillus subtilis and Bacillus cereus served as G(+) microorganisms, while Salmonella typhimurium, Staphylococcus aureus, and Eschrichia coli served as G(-) microorganisms. There was no significant difference in the antioxidative activity of the methanol extracts from leaves and roots between varieties. The antioxidative activity of the flower extracts was higher in the Korean than in the Western samples but the highest level of antioxidant was lower than 70%. No significant difference in antimicrobial activities between the varieties was observed. More research using physiological factors other than antioxidative and antimicrobial activities is needed to identify physiological functions and enhance the utilization of Dandelions.

• International Journal of Advanced Culture Technology
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• 제7권3호
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• pp.120-125
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• 2019

In this paper, we have isolated six phenolic compounds, such as (+)-catechin (1), taxifolin (2), taxifolin-3-O-${\beta}$-D-(+)-xylose (3), quercetin (4), quercetin-3-O-${\alpha}$-L(+)-rhamnose (quercitrin) (5), apigenin-8-C-rhamnosyl-(1'''${\rightarrow}$2'')-glucoside (2''-O-rhamnosylvitexin) (6) from the EtOAc(Ethyl Acetate) and $H_2O$ soluble fractions of Japanese anise(Illicium anisatum L) leaves and twigs. Also, we have evaluated antioxidative and antiviral activity for each isolated compound. The antioxidative test was DPPH (1,1-diphenyl-2-picrylhydrazyl) radical scavenging activity. According to the experimental results, all of the isolated compounds indicated the increased radical scavenging activities as the concentration increases and most of the isolated compounds indicated generally good antioxidative values compare to the controls, ascorbic acid and ${\alpha}$-tocopherol. In the antiviral activities, all of the isolated compounds had no potentials in rhinovirus 1B (HRV 1B). But in enterovirus 71 (EV 71) and Influenza virus A/PR/8 (Influenza PR8), only quercetin (4) indicated the good antiviral activity compare to the control. Based on the above results, we found that the phenolic compounds of Japanese anise may be applied for one of the natural biomass sources that can be used as an antioxidant and an antiviral substance.