• 대한수의학회지
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• 제16권2호
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• pp.165-171
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• 1976

Experimental approaches on the effectiveness of thimerosal to control growth of Nosema apis (Zander, 1909) were carried out in the rearing honey bees. The rearing honey bees were artificially infected with various levels of spore isolated from local honey bees. The results obtained were summarized as follows: 1. In the experiments of therapeutic chemicals for Nosema disease, 0.01% and 0.02% thimerosal of sucrose-honey mixture was the most effective agent but the each concentration of amprolium, furazolidone, hygiene, sulfadimethoxine and terramycin did not show the any effects 2. It showed very high therapeutic effectiveness (over than 90%) that the treatment of three times every other day after the treatment of three times consecutive every day with 0.01% thimerosal, or the treatment of three times consecutive every day with 0.02% thimerosal. 3. When 0.02% thimerosal was administered three times consecutive every day to honey bees at the 4th day before artificial inoculation of N. apis, it showed very high degree (100%) of prevalence control effectiveness, and it also showed high degree (over than 90%) in administration at the 7th day before, and over than 80% at the 10th day before. Then authors found that thimerosal has the prevalence control effectiveness as well as the treatment effectiveness. 4. In the rearing honey bee colony, 0.02% thimerosal showed the high degree (over than 80%) of therapeutic effectiveness with the various levels which contained from the light decree of infection to the severe degree of it.

• 한국치위생학회지
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• 제12권5호
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• pp.933-942
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• 2012

Objectives : This study is to examine the effectiveness in the oral health promotion through the oral health education for high school students. In adolescence, there seems to be the high incidences of dental caries, gingivitis and periodontal diseases. Concerning preventing all such outbreaks, this study focuses on applying the oral health education to their health education, and on analyzing its effectiveness. Methods : To verify its effectiveness, this research administered 85 students of both genders of a certain high school in Seoul during May-October 2010, followed by the evaluation of DMFT, S-PHP, and CPITN. Results : First, the oral health promotion through the education was statistically significant in the permanent effects of index (FT index). Second, the effect of S-PHP index gradually decreased in statistics from the first to the fifth session, but, after five months ever since the education, it seemed relatively higher in the next sessions. Third, the changing in the level of CPITN decreased continuously as the students received the education repeatedly, but there is no significant difference in statistics for each session. Conclusions : For the oral health promotion in the high school students, the education ought to be focused on the behavior-change objectives rather than on the knowledge-based objectives. The repeated education for tooth-brushing instruction should be stressed for preventing from returning to the old bad behaviors.

• 보건행정학회지
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• 제22권4호
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• pp.676-695
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• 2012

This study purposes to examine the relationship between high performance-HRM system of medical doctor and the effectiveness of hospital. The high performance-HRM practices were derived from reviewing the literature of SHRM(Strategic Human Resource Management) and investigating some cases of Korean leading hospitals. The result reveals that the high performance-HRM system of medical doctor is significantly related with subject measurement such as financial performance, employees' turnover, and customer(patient) satisfaction. Moreover, it is positively related to objective performance such as hospital's profit growth, yearly patient growth. Based on the result, the academic and practical implications are suggested and then the limitation and further research directions are discussed.

• 한국전자파학회논문지
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• 제27권10호
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• pp.935-940
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• 2016

지향성 에너지 무기는 순간적으로 집중된 에너지를 특정한 방향으로 방사하여 적 전자장비를 교란하거나 과부하를 초래하는 무기체계이다. 이러한 지향성 에너지 무기체계의 성능을 결정하고, 설계를 수행함에 있어 표적에 대한 효과 분석은 중요한 고려 요소 중 하나이다. 본 논문에서는 대표적인 지향성 에너지 무기체계인 공중방어체계에 대한 효과도를 분석하였다. 이를 위하여 고출력 원형편파 피드혼을 적용한 반사판 안테나를 설계하고, 거리 별 유효면적에 인가되는 출력밀도를 시뮬레이션 툴과 프리스 공식을 활용하여 분석하였다. 이를 통하여 안테나 시스템 설계에 대한 유효성을 검증하고, 표적에 대한 지향성 에너지 무기의 효과를 확인하였다.

• 수산경영론집
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• 제41권1호
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• pp.73-91
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• 2010

The objective of this study is to examine the hedging effectiveness of shrimp futures market. Hedging effectiveness is measured by OLS model based on rolling windows. Analysis data are obtained from Kansai Commodities Exchange in Osaka and are weekly data of frozen shrimp futures and cash prices in the time period from July 9, 2003, to May 9, 2007. The empirical results are summarized as follows:First, the correlation coefficients between the nearby futures price changes and the cash(16/20) price changes are very low and have range from 0.141 to 0.208 values. Second, the minimum variance hedge ratios($\hat{\beta}$) are all statistically different from 0 at the 5% level and range from 0.0477 to 0.5039 values excluding Indian shrimps(26/30). Ex post hedging effectiveness, as measured by the coefficient of determination, $R^2$, is relatively very low and range from a low of 0.4% for west-south Indian shrimps(26/30) to a high 4.3% for Vietnamese shrimps(16/20). Third, ex ante hedging effectiveness, as measured by out-of-sample hedging period, is also very low and range from a low of -4.4% for west-south Indian shrimps(21/25) to a high of 3.4% for Vietnamese shrimps(16/20). This indicates that the shrimp futures market doesn't behave as risk management instrument of shrimp spot.

• 간호행정학회지
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• 제11권4호
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• pp.415-423
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• 2005

Purpose: The purpose of this research is to discover the effects of REBT group counseling on the self-efficacy and organizational effectiveness of nurses with high scores on dysfunctional attitude scale. Method: There wewe 21 subjects in the experimental group and 25 subjects in the control group. This treatment lasted for eight weeks. Each week, a two and half hour long session was cinducted. Results: The experimental groups showed that significant statistical differences compared with the control groups in the score of self-efficacy, job-satisfaction, organizational commitment, and nursing performance. Conclusion: These results imply that REBT group counseling could be utilized as good nursing intervention to enhance self-efficacy, organizational effectiveness at the general hospital.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 1989년도 가을 학술발표회 논문집
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• pp.63-67
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• 1989

Various studies have been done to investigate the effectiveness of lateral confinement of lower strength concrete(below 420kg/$\textrm{cm}^2$). But little research its effectiveness for high strength concrete. A certain concern has been arised that the beneficial effect of lateral confinement in high strength concrete may be different from that in lower strength. This study aimed to investigate that concern with different confinement spacing(D/2 : D/4). The results show that beneficial effects of spiral confinement are more pronounced for lower strength concrete as compared to higher strength concrete.

• 한국태양에너지학회 논문집
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• 제26권2호
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• pp.87-94
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• 2006

The efficiency of ventilation system is one of the most important issues of designing ventilation in high-rise apartment buildings. The purpose of this study is to analyze the ventilation efficiency of ventilation system by experimental study using CO2 gas method. The results of this paper can be summarized as follows; (1) An appropriate ventilation including opening planning, mechanical and hybrid system are required. (2) The supply diffuser of ventilation system should be located near the contaminant source. (3) The return grill should be located along with supply diffuser for proper ventilation. and the return grill should be located near or right above the contaminant source. (4) However, the supply location right above the contaminant source has to be avoided. and the supply diffuser should be installed in module with return grill increase ventilation effectiveness.

• 한국조명전기설비학회:학술대회논문집
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• 한국조명전기설비학회 2009년도 춘계학술대회 논문집
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• pp.67-71
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• 2009

본 논문에서는 우리나라에서 동일한 환경에 설치되어 있는 247.5kW bulk형 모듈과 a-Si형 모듈의 6월 발전량을 조사 분석하여 기상조건(일조량, 평균기온, 강수량, 운량, 풍속 등)과의 관계를 분석하고 최근 지구온난화 등으로 인한 기후변화에 따라 보다 고효율적인 모듈 산정방안을 제시하였다.

• 한국정보통신학회논문지
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• 제17권9호
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• pp.2227-2232
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• 2013

유도제어 시스템 체계개발의 초기단계에는 운용 효과도 도출 및 요구사항 적합성 검토를 통한 체계 개략사양도출을 위해 효과도 분석을 수행한다. 본 논문의 목표는 M&S (Modeling & Simulation)를 활용한 운용 효과도 분석을 통해 고속 무인 수중운동체의 목표점 도달 임무를 위한 체계 요구사항 도출이다. 운용 효과도는 대상 수중운동체의 목표점 도달 정확도로 정의한다. 도달 정확도에 가장 큰 영향을 미칠 것으로 예상되는 변수는 항법센서 성능이다. 본 논문에서는 관성항법센서(Inertial Navigation Sensor, INS)와 도플러 속도 측정 장치(Doppler Velocity Log, DVL)를 이용한 복합항법을 고려하였다. 몬테카를로 수치 시뮬레이션을 통해 항법센서 성능에 대한 효과도 분석을 수행한다. 몬테카를로 수치 시뮬레이션 결과는 CEP(Circular Error Probability)와 분산을 이용한 확률분석을 통해 분석한다. 상용 항법센서 가격을 고려하여 최적의 가격대 성능비를 갖는 항법센서 성능을 제시한다.