• 한국정보시스템학회지:정보시스템연구
• /
• 제5권
• /
• pp.21-41
• /
• 1996

Linear programming has become an important tool in decision-making of modern business management. This remarkable growth can be traced to the pioneering efforts of many individuals and research organizations. The popular using of personal computers make it very easy to process those complicated linear programming models. Furthermore advanced linear programming software packages assist us to solve L.P. models without any difficult process. Even though the advanced L.P. professional packages, the needs of more detailed deterministic elements for business decisions have forced us to apply dynamic approaches for more resonable solutions. For the purpose of these problems applying to the "Mathematica" packages which is composed of mathematic tools, the simplex processes show us the flexible and dynamic decision elements included to any other professional linear programming tools. Especially we need proper dynamic variables to analyze the shadow prices step by step. And applying SAS(Statistical Analysis System) packages to the L.P. problems, it is also one of the best way to get good solution. On the way trying to the other L.P. packages which are prepared for Spreadsheets i.e., MS-Excel, Lotus-123, Quatro etc. can be applied to linear programming models. But they are not so much useful for the problems. Calculating simplex tableau is an important method to interpret L.P. format for the optimal solution. In this paper we find out that the more detailed and efficient techniques to interpret useful software of mathematica and SAS for business decision making of linear programming. So it needs to apply more dynamic technique of using of Mathematica and SAS multiple software to get more efficient deterministic factors for the sophiscated L.P. solutions.

• 한국콘텐츠학회논문지
• /
• 제13권3호
• /
• pp.174-183
• /
• 2013

본 연구는 한부모여성가구주의 인구사회학적 변인 및 경제적 스트레스가 삶에 질 즉 경제적 만족도와 신체적 건강상태 그리고 심리적 디스트레스가 어떻게 영향을 미치는가를 분석하였다. 연구대상은 전국 모자보호시설에 거주하는 430명의 표본을 분석자료 활용했다. SAS 9.1(Statistical Analysis System)을 이용하여 한부모여성가구주의 인구사회학적 특성을 설정된 연구모형에 의해 분석한 결과, 경제적 만족도, 신체적 건강상태, 심리적 디스트레스 즉 삶의 질에 부정적인 영향을 미치는 것으로 나타났다. 또한 한부모여성가구주가 경험하는 경제적 스트레스는 그들의 삶의 질에 부정적인 영향을 미치는 것으로 파악되었다. 특히 심리적 디스트레스에 가장 큰 영향력을 미치는 것으로 나타났으며, 경제적 만족도와 신체적 건강 상태에도 유의미한 영향을 미치는 것으로 나타났다.

• 품질경영학회지
• /
• 제28권4호
• /
• pp.106-118
• /
• 2000

We analyze the current quality management status for firms producing steel outfits of ships and develop an efficient QMS appropriate to Korean steel outfit industry. The firms recently obtained ISO 9000 certificates and are located in Pusan ${\cdot}$ Kyungnam district of Korea. The analysis is based on the audit results from ISO 9000 for seven steel outfit firms during last three years. We find out major requirements of ISO 9000 and investigate statistical relationship among major requirements, types of data, and groups of firms by using a statistical package, SAS. Recommendations regarding add-on requirements are suggested to install an efficient QMS in Korean steel outfit firms.

• 한국도서관정보학회지
• /
• 제33권2호
• /
• pp.79-108
• /
• 2002

본 연구는 준사서를 위한 교과과정에 관한 조사 및 분석하는데 있다. 그 이유는 시대의 변화에 따라 도서관 업무도 변하고 그 와 관련된 준사서를 위한 교과과정 형성도 변해야 할 필요성이 있으며 또 이론보다 실무연습이 강조되어야 할 필요성 때문이다. 그 방안으로는 첫째 도서관현장에서 요구되는 새로운 지식을 파악하기 위해 문헌조사 및 도서관 현직 사서와의 면담을 통하여 준사서의 업무를 파악하고 둘째 문헌정보학 교수, 도서관 관리책임자 및 도서관 현직 준사서들에게 설문지를 배포하여 의견을 수렴함으로서 준사서를 위한 교과과정 형성에 새롭게 포함되어야 할 교과목을 선정하였다. 설문지 문항은 총 30개로 준사서를 위한 교과과정에 관련된 일반적인 사항과 시대적인 변화에 따른 준사서의 업무 및 준사서의 일상적인 업무들로 구분되었다. 5단계 리커트척도를 사용하여 측정하고 조사결과는 SAS(Statistical Analysis System)를 사용하여 분석했다.

• 한국산림과학회지
• /
• 제82권2호
• /
• pp.207-219
• /
• 1993

본(本) 연구(硏究)는 임분조사(林分調査)에 필요(必要)한 표본(標本) 조사법중(調査法中)에서 조사(調査)의 효율성(效率性)을 유지(維持)하면서 시간(時間)과 경비(經費)를 절약(節約) 할 수 있는 Spiegel Relaskop를 이용(利用)한 점조사법(點調査法)의 이론(理論)과 실제(實際) 현장(現場)에서의 사용(使用) 방법(方法)을 논(論)하고 실제(實際) 임분(林分)에 대한 조사(調査) 자료(資料)를 이용(利用)하여 흉고단면적(胸高斷面績), 생육(生育) 본수(本數), 재적(材積)의 계산(計算) 예(例)를 제시(提示)함으로서 우리나라의 임분(林分) 조사(調査) 실무(實務)에 도움이 될 수 있도록 하였다. 또한 개인용 Computer를 이용(利用)한 자료(資料)의 분석을 위하여 SAS(Statistical Analysis System)의 프로그램과 사용(使用)하기 손쉬운 계산기에 의한 계산법(計算法)을 제시(提示)함으로서 이론상(理論上)의 어려움에도 불구하고 임분조사(林分調査) 실무자(實務者)가 손쉽게 사용(使用)할 수 있는 방법(方法)을 제안(提案)하였다.

• Journal of Nutrition and Health
• /
• 제35권6호
• /
• pp.668-680
• /
• 2002

The purpose of this study was to investigation the importance and categorization of task elements of school food service dietician and to provide the useful data for standard model of the dietician′s tasks of school foodservice. This study was conducted in school food services nationwide in method of written questionnaire. The questionnaires were mailed to the dieticians of 3 type school foodservice system-conventional, commissary, joint management. Of the 660 schools that participated in this study, the responses from 212 conventional system and 212 commissary system and 200 joint management system were selected for analysis. Statistical analysis was performed with SAS/Win 6.12 package program for descriptive analysis, T-test, ANOVA, factor analysis using. The main results of this study can be summarized as follows Importance level was more than 4 score out of 5 scale in most of the task elements. The result was indicative of the appropriateness of definition of the 61 task elements. Of 61 task elements, importance level on ′nutrition education′ and on ′evaluation of foodservice operation management′ indicated the most significant difference between present and ideal situation. Through factor analysis, 61 task elements were regrouped into 7 dimensions; "Duty dimension of cooking and distribution management", "Duty dimension of cost management", "Duty dimension of raw material management", "Duty dimension of education management", "Duty dimension of menu management", "Duty dimension of record keeping of foodservice", "Duty dimension of general management (others)".

• Journal of Nutrition and Health
• /
• 제31권3호
• /
• pp.354-362
• /
• 1998

The purposes of this study were to develop standardized indices of staffing needs in each school, foodservice system through work sampling methodology . Conventional school foodservices were classified into 5 groups depending on size of meals served. Commissary school foodservices were also classified into 5 groups by cluster analysis using number of meals served, number of satellite schools, and time for transportation of food. Work measurement through work sampling methodology was conducted in 15 conventional and 21 commissary foodservices during 3 consecutive days from September to October in 1995. Statistical data analysis was completed using the SAS programs for descriptive analysis, cluster analysis, and simple linear regression. The results were as follows : Average points of leveling factors of conventional and commissary foodservices were 1.066 and 1.061 , respectively. Mean labor hours per work force was 328 minutes and 366 minutes in conventional and commissary foodservice , respectively. Standardized work time was calculated using leveling factor, ILO allowance rate (175) , and observational work time. The model for standardized indices of staffing needs was developed based on simple linear regression in each school foodservice system. In conventional school foodservice systems(for 100-1,900 meals per day) standardized staffing needs=3.2497 +0.005267$\times$number of meals served (F=273.1, R-square 0.9750, p<0.001). In commissary school foodservice systems (for 200-1,600 meals per day ) Standardized staffing needs=3.393384 +0.0063$\times$number of meals served (F=30.78, R-square 0.6580, p<0.001).

• 가정과삶의질연구
• /
• 제17권1호
• /
• pp.73-86
• /
• 1999

The aim of this study is to suggest theoretical foundations on which hospital employees could estimate medical care services not in the position of providers but consumers. For this purpose this study compares satisfaction of providers but consumers. For this purpose this study compares satisfaction of patients with medical care service with that of hospital employees. 287 patients and 261 employees in three university hospitals in Daegu were selected as samples of investigation and asked questions. Statistical analysis was taken using SAS package. The result of this study are as follows. 1) Among the five fields of medical services patients and hospital employees have different views in doctor hospital staff(except doctor) treatment system availability service but parking service 2) Hospital employees overestimate the level of medical care services compared with patients 3) Demographical variables make a difference in medical satisfaction 4) In satisfaction-evaluation after r ceiving treatment medical system service is influential variables in both patients and hospital employees. And in patient group doctor service is following variables while availability and parking service is influential variables in employees.

• 한국국방경영분석학회지
• /
• 제27권2호
• /
• pp.25-36
• /
• 2001

In this paper a new heuristic algorithm has been developed and presented for logistics for multiple objectives in an automated manufacturing systems. We proposed Simallest Processing and Average setup time Ratio First(SPARF) algorithm for multiple criteria under sequence setup time. The heuristic algorithm is implemented on the various problem cases by number of jobs and machines. The proposed algorithm provided smaller than the previously documented heuristics. The results obtained show a superior solution by the new heuristic over previous heuristics on all problem sizes. we perform analyses of variance to fortify the above results of comparison with the previous algorithms to the four cases using Statistical Analysis System(SAS) package. The results show that the larger is the number of groups or cells, the bigger is the amount of improvement by the proposed algorithms. It suggests that the algorithms proposed is strongly influenced by the number of cells, groups and interaction of these factors.

• 대한안전경영과학회지
• /
• 제11권2호
• /
• pp.159-165
• /
• 2009

Through the understanding of the change of productivity and the ability of error recovery according to aging and the assessment and analysis of them, we may take this research to contribute to make a design for the road-map to help set up the policy of employment for old generation. For this we have taken an experiment of the coordination tester for 100 person who are chosen randomly and analysed the collected data using SAS, which is one of widely used statistical analysis packages. The main results are as follow: $\circledcirc$ The result of regression between the working speed and the length of the correction of error shows independence. (pr>0.2029). $\circledcirc$ The regression between age and working speed is statistically significant. (pr<0.0001) $\circledcirc$ The relation between age and the length of the correction of error is not significant. (pr>0.9123).