• 한국수자원학회논문집
• /
• 제32권3호
• /
• pp.291-300
• /
• 1999

하천치수를 고려한 프랙탈 차원의 개념을 실제 강우-유출 모형에 적용시키는 방안으로써 스나이더 합성단위유량 도법을 택하였으며, 5대강 수계의 29개 유역에 대한 지형자료와 관측단위유량도 자료를 이용하여 4가지 형태의 스나이더형 관계식을 유도하였다. 29개 유역에 대한 분석과 2개 유역에 대한 검증 결과 하천길이의 프랙탈적인 성질을 이용하고 기계산된 자료는 기계산된 값을 이용하는 스나이더형 관계식이 가장 좋은 결과를 보여주었다. 하천차수 유역중심에서 출구까지의 하천길이( Lca )중 Lca 는 프랙탈적인 성질이 없고 유역중심의 상류에 해당하는 주하천 구간인 ( Lma - Lca )만이 1.027의 프랙탈 차원을 갖는다는 가정을 하였으며, 이를 이용하여 우리날 수계를 대표 할 수 있으며 작업대상 지형도축척에 의해 발생하는 하천길이의 프랙탈적인 영향을 고려할 수 있는 새로운 스나이더형 공식을 제안하였다.

• Nuclear Engineering and Technology
• /
• 제31권5호
• /
• pp.506-511
• /
• 1999

The pilot system for radioactive liquid laundry waste was developed with treatment capacity, 1ton/hr and set up in the Yong Kwang unit #4. The system is composed of tank module, RO systems and a UV/$H_2O$$_2$photo-oxidation unit. The RO system consists of the BW unit (low-pressure RO for brackish water desalination) and the SW unit (high-pressure RO for seawater desalination). The BW unit possesses 4 RO membranes and it can reduce the feed water volume down to 1/10. This concentrated feed water can be reduced again up to 1/10 in its volume in the SW unit composed of 4 RO membranes. The UV/$H_2O$$_2$ photo-oxidation process unit was used for the detergent degradation. The operation of the pilot system was carried out and verified in its capability through the continuous operation and concentration operation using the actual liquid waste from the power plant. The design criteria and data for industrialization were yielded. The efficiency of the UV/$H_2O$$_2$ photo-oxidation process and the optimum operational procedure were evaluated. The decontamination factors for radioactive cobalt and cesium were measured. This on-site test showed the experimental result in the DF$\geq$300 and volume reduction factor$\geq$100.

• 사회복지연구
• /
• 제39호
• /
• pp.253-286
• /
• 2008

노인장기요양보험 수가는 서비스시장에게 국가가 노인장기요양정책을 이끌고 나가고자 하는 정책방향을 보여주는 정책적 신호의 의미를 지닌다. 본 논문에서는 첫째, 한국의 노인장기요양보험의 급여종류별 수가가 어떠한 방법과 근거를 가지고 개발되었는가를 살펴보고, 그 특성을 규명하고자 하였다. 둘째, 평가기준을 가지고 수가개발의 타당성과 현실적 적절성 등을 평가해보고자 하였다. 셋째, 수가가 노인장기요양보험 시장의 합리적 형성 및 운영을 위한 중요한 요인임을 감안하여, 가격결정자와 규제자로서의 국가의 역할에 주안점을 두고 정책과제를 도출해보고자 하였다.

• 동서간호학연구지
• /
• 제13권1호
• /
• pp.31-39
• /
• 2007

Purpose: This study was to identify the influence of internal marketing factors on organizational citizenship behavior of nurses based on the mediate variable of job satisfaction. Method: Structured questionnaires were used with a convenience sample of 267 subjects working at 2 hospitals which have more than 500beds. The data were analyzed using descriptive statistics, ANOVA, Scheffe test, Pearson's correlation and multiple regression. Result: Empowerment($\beta$= .395) and compensation($\beta$= -.232) among the internal marketing factors had significant influences on organizational citizenship behaviors. However, job satisfaction($\beta$= .266) showed a mediate variable between compensation and organizational citizenship behaviors. Conclusion: This result indicates that empowerment and job satisfaction are important factors in predicting organizational citizenship behavior of nurses in hospitals. Thus it would be necessary to include this two factors in inhencing production of a nursing unit.

• 한국게임학회 논문지
• /
• 제7권3호
• /
• pp.1-12
• /
• 2007

본 연구에서는 게임이나 내기 및 놀이 등이 갖고 있는 사행성의 내재적 특성을 찾아보려 하였다. 이를 위해서 우선 사행성의 개념에 대해 살펴보았으며 관련 이론을 정리하였다. 이를 토대로 사행성이 갖는 기술적 개입성, 베팅, 보상비율이라는 세 요인을 추출하여 살펴보았으며, 베팅에서는 다시 베팅의 유무, 베팅의 단위속도, 베팅의 확장성이라는 세부적인 요인을 찾아내어 고찰하였다. 이러한 요인을 분석틀로 활용하면 각 사행성게임의 특징에 대해 보다 개념적인 분석이 가능해질 수 있으며, 향후 사회문화적 요소까지 포괄한다면 총체적이며 실증적인 분석이 가능해질 것이다.

• 교육녹색환경연구
• /
• 제2권2호
• /
• pp.35-51
• /
• 2002

This study is on the architectural planning and factors for secondary schools. The methods in the approach to the results were settled. A sample of factors that affect architectural scale design were drawn from architectural design direction for a secondary school architectural scale estimation direction. These factors arc broken into primary elements and situational elements. Primary elements include students, teachers, and time. Situational elements include public use percentage, classroom percentage, unit area, coefficient of utilization, etc. The 7 architectural planning criteria to cover changes of various architectural scale design elements are the following; 1) consideration of students selection percentage, 2) consideration of the number of teachers, 3) a variety of possible classrooms, 4) organic operation, 5) efficient time management, 6) consideration of different teaching method depending on subjects, 7) coefficient of utilization with flexibility.

• 대한인간공학회지
• /
• 제32권3호
• /
• pp.259-266
• /
• 2013

Objective: This study aims to evaluate the workloads of industrial and automobile storage battery industries and their association to biological exposure indices. Background: Occupational lead exposure at battery manufacturing workplace is the most serious problem in safety and health management. Method: We surveyed 145 workers in 3 storage battery industries. Environmental factors(lead in air, temperature, humidity and vibration)), biological exposure indices(lead in blood and zinc protoporphyrin in blood) and individual workload factors(process type, work time, task type, weight handling and restrictive clothing) were measured in each unit workplace. Results/Conclusion: Air lead concentration is statistically significant in associations with workload factors(process type, work time, task type, and restrictive clothing) and environmental factors (humidity and vibration), whereas zinc protoporphyrin in blood are significantly associated with work time and weight handling. And lead in blood is significantly associated with work time, weight handling and temperature. Application: The results of this study are expected to be a fundamental data to job design.

• 대한안전경영과학회:학술대회논문집
• /
• 대한안전경영과학회 2011년도 춘계학술대회
• /
• pp.95-99
• /
• 2011

The research analyzes structure models of Repeated Measurement Design (RMD) and Hierarchical Design (HD). The experimental unit of RMD model is living organisms, such as human. In contrast, HD is used when all the factors are random. The HD models are derived from R:B:A, R:C:B:A and R:C:($A{\times}B$).

• 대한안전경영과학회:학술대회논문집
• /
• 대한안전경영과학회 2004년도 추계학술대회
• /
• pp.259-267
• /
• 2004

Enterprise must establish a properly competitive strategy according to environmental changes and international competitions. It is necessary to develop the strategy of competitive power for an efficient operation as well as system, industry, product and price competitions. This paper aims to propose a choice method of Competitive Power Key Factors which can be applied to unit parts and finished products, construction products, soft wear products based on Reliability.

• Safety and Health at Work
• /
• 제12권4호
• /
• pp.505-510
• /
• 2021

Background: Factors related to root causes can cause commonly occurring accidents such as falls, slips, and jammed injuries. An important means of reducing the frequency of occupational accidents in small- to medium-sized enterprises (SMSEs) of South Korea is to perform intensity analysis of the root cause factors for accident prevention in the cause and effect model like decision models, epidemiological models, system models, human factors models, LCU (life change unit) models, and the domino theory. Especially intensity analysis in a robot system and smart technology as Industry 4.0 is very important in order to minimize the occupational accidents and fatal accident because of the complexity of accident factors. Methods: We have developed the modern cause and effect model that includes factors of root cause through statistical testing to minimize commonly occurring accidents and fatal accidents in SMSEs of South Korea and systematically proposed educational policies for accident prevention. Results: As a result, the consciousness factors among factors of root cause such as unconsciousness, disregard, ignorance, recklessness, and misjudgment had strong relationships with occupational accidents in South Korean SMSEs. Conclusion: We conclude that the educational policies necessary for minimizing these consciousness factors include continuous training procedures followed by periodic hands-on experience, along with perceptual and cognitive education related to occupational health and safety.