• 한국전산구조공학회:학술대회논문집
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• 한국전산구조공학회 2005년도 춘계 학술발표회 논문집
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• pp.575-582
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• 2005

Wind Turbines of big scale of modem stage are made of a part glass F.R.P. Carbon Reinforced Plastic and Kevlar can be used 0 reinforcement but those are not economical in big scale of Wind Turbines. In this study life sized 10kW-class Rotor Blade is made of F.R.P. which is high stiffness and good dynamic behavior characteristic for light weight. It is accomplished an experimental research of Bending analysis blade. Bending analysis blade are calculated with F.E. Analysis performed with commercial F.E.M program ANSYS. Finally, experimental research is compared with F.E. Analysis. The results indicate that experimental values have good agreements with the F.E. Analysis.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2007년도 춘계학술논문 발표대회
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• pp.155-158
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• 2007

The construction industry kept lower level of the technology and productivity improvement than any other kinds of industry. But in most analysis of previous construction work which promoted the productivity of construction, the analysis process has only developed by the economical efficiency or the time studies through work sampling in construction field, So We suggest motion analysis as a tool to solve these problems. Spacially, this study find out productivity improvement method of steel frame fabrication works with using motion analysis. If the result of this study were to be applied to the actual construction field, it will be of great help for Building Construction Automation.

• 한국의류산업학회지
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• 제12권4호
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• pp.431-438
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• 2010

This study analyzes how the environmental values of fashion consumers influence the purchase satisfaction and repurchase intention of eco-friendly fashion products. The survey was conducted from June $1^{st}$ to $30^{th}$ in 2009, and 343 responses were used in the data analysis. The statistical analysis methods were frequency analysis, factor analysis, reliability analysis, and multiple regression analysis. The results show that the environmental values is classified by environment conservative value, economical value, social altruistic value, and egocentric value. The social altruistic value of fashion consumers affects purchase satisfaction of eco-friendly fashion products. The social altruistic value, environment conservative value, and egocentric value affect the repurchase intention of eco-friendly fashion products.

• 대한조선학회지
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• 제52권2호
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• pp.19-24
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• 2015

A reliable assessment and analysis of the condition of high pressure and temperature steam pipelines requires defining stress state, which will take into consideration not just the impact of internal pressure and temperature but all applied loads. For that, usage of modeling and numerical methods for calculation and analysis of stress state is essential. The main aim of piping stress analysis is to check the design of piping layout, which will allow simple, efficient and economical piping supports and provide flexibility to the piping system for loads and stresses. The piping stress analysis is carried out using CAESER II software. By using this software we can evaluate stresses, stress ratios, flange condition, support loads, element forces and displacements at each node and points. In this paper, only the maximum and minimum displacement results are tabulated, which is also shown in detail by an example of main steam pipelines of UST Main Engine System [1].

• 토지주택연구
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• 제11권1호
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• pp.11-19
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• 2020

This paper proposed an effect analysis method that meets the characteristics and purposes of the revitalization project for old industrial complexes, and quantified the economical effects about the project in Jeollabuk-do by case analysis. The problems on the existing effect analysis about revitalization project for old industrial complexes, estimated as transportation benefits on the main entrance roads plan and the increased rent benefits on the internal roads and other plans, were examined. In addition, the land use plan ratio on the old industrial complexes compared to the averages, and the surveys to the residential company were conducted. And this paper finally proposed an effect analysis methodology for the revitalization project for old Industrial Complexes in consideration of the increase in the operation rate and the added values through the conversion to high value-added industrial sectors. It was analyzed that new value added of KRW 743,278 million can be generated for next 30 years when the revitalization project for old Industrial Complexes in Jeollabuk-do is implemented.

• 한국사회복지학
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• 제58권1호
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• pp.291-318
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• 2006

본 연구는 도시지역 미취업노인들의 취업의사결정 요인들을 규명하기 위하여 노인들의 취업의사와 인구사회학적인 요인, 건강 및 심리사회적 요인, 그리고 노동 및 경제적 요인들과의 관계를 분석하였다. 본 연구는 서울시 소재 노인종합복지관을 이용하시는 60세 이상의 노인들 중에서 총 220명을 편의 모집(Purposive Sampling)하여 구조화된 설문지로 면접자에 의한 설문을 실시하였고, 최종 194명을 분석에 활용하였다. 본 연구의 분석방법으로는 취업의사여부에 따른 조사대상들의 특성은 빈도, 백분율, 평균, $X^2$ 및 t-test 등의 통계를 통해서 산출하였고, 취업의사결정에 영향을 미치는 요인들을 규명하기 위하여 로지스틱 회귀분석(Logistic Regression)을 사용하였다. 본 연구의 주요 결과로는 도시거주 미취업 노인들의 취업의사여부는 노인들의 성별, 연령, 학력, 자녀수, 신체적 건강상태, ADL, 자아 효능감, 경제적 스트레스, 노동 총 종사기간 부동산 소득, 가족후원금 및 연금 급여수준 등 다양한 요인들에 의하여 결정된다는 것이 조사되었다. 이러한 노인취업의사결정에 영향을 미치는 다양한 요인들을 고려안 노인고용관련 정책, 제도 및 프로그램 개발 및 운영이 필요하다. 끝으로 본 연구결과를 바탕으로 고령사회에 대비한 노인취업 활성화를 위한 제언 및 함의를 개괄적으로 제시하였다.

• 한국콘텐츠학회논문지
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• 제12권6호
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• pp.249-264
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• 2012

본 연구는 성공적 노화에 대한 이론적 고찰을 통해 성공적 노화의 개념을 명확히 하고, 이를 위해서 어떻게 노후를 준비하여야 하는가를 밝히고자 하였다. 근로자의 노후준비에 영향을 미치는 요인들을 조사하고 그 요인들이 노후준비에 어떻게 영향을 미치는지를 확인하기 위해 경기도에 위치하는 반월공단과 시화공단에 근무하고 있는 40세 이상의 근로자를 대상으로 조사하였다. 조사기간은 2011년 10월 10일부터 10월 31일까지였으며, 수집된 자료는 총 280부였고, 이중 결측값이 있는 자료를 제외한 총 261부를 최종 분석 자료로 사용하였다. 자료의 분석은 SPSS 18.0 프로그램을 이용하여 빈도분석, 요인분석, 차이검정, 그리고 다중회귀분석 등을 실시하였다. 연구결과는 다음과 같다. 첫째, 인구사회학적 특성이 노후 준비도에 미치는 영향에 대한 분석결과 건강상태가 전반적인 노후준비에 정(+)의 영향을 미치고, 연령, 학력, 월 평균수입, 종교, 그리고 자녀수가 부분적으로 정(+)의 영향을 미치는 것으로 나타났다. 둘째, 업무특성이 노후준비에 미치는 영향관계에 관한 분석에서 직무만족은 신체적 노후준비와 경제적 노후준비에 정(+)의 영향을 미치고, 직업몰입은 경제적 노후준비에만 영향을 미치는 것으로 나타났다. 세째, 인구사회학적 특성에 따른 노후준비도의 차이분석에서 연령, 학력, 배우자 유무, 종교유무, 건강상태, 그리고 자녀수에서 차이가 나타났다.

• Journal of Animal Science and Technology
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• 제55권4호
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• pp.315-323
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• 2013

This study analyzed optimal slaughter ages and carcass traits to investigate factors that affect farm incomes. Carcass characteristics and economical analysis of 81 Hanwoo steers previously tested (Expt. 1) and 5,826 steers from Gangwon-Do, area A (Expt. 2) were used. In Expt. 1, the strongest relationship was between the slaughter age and the carcass weight based on the $R^2$ value, and the weakest relationship was between the slaughter age and the marbling score based on the $R^2$. The slaughter age, marbling score, and rib-eye area of steers slaughtered from 26 to 31 months of age had a positive effect on income, but back fat thickness had a negative effect. In the economical analysis of Expt. 1, the optimal time for slaughter was 31 months of age. In Expt. 2, composed of steers slaughtered from 26 to 35 months of age in farms site of area A, the income was highest from steers slaughtered at 28 months of age, after which the income decreased. From the results of Expt. 1 and 2, it is evident that the optimal slaughter age of Hanwoo steers is affected by the genetic differences of calves, the feeding program and management, fattening skills, or carcass price. In order to improve the income of individual farms, the slaughter age must be precisely decided by understanding the exact relationship between the feeding cost of Hanwoo steers and slaughter results, such as carcass weight, yield grade and quality grade.

• 한국안전학회지
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• 제28권5호
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• pp.41-48
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• 2013

This paper is intended to provide the background information and justification for Korean highway bridge design code(limit state design)(2012). Limit state design method calculates reliability index and probability of failure through the analysis of the reliability of the experimental database. It has become possible to perform the economical and consistent design by evaluating the safety of a structure quantitatively. In this paper, we used the design specifications of RC slab bridge of superstructure form of Road Design Manual in Part 5 bridge built in highway bridge. This study conducted structural analysis using the method of frame structure theory, design and analysis of bridge by limit state design method, the design code including various standards and Load model applied Korean highway bridge design code limit state design(KHBDC;2012). As a result, it analyzed the effect of safety through comparison. Showing effect of improvement the safety factor and comparing the value of the result, it is determined to be capable of economical design and safety. Furthermore, limit state design method was able to determine many redundant force of cross-section compared with existing design method. It is determined that it can reduce the overall amount because of the reduction of the cross-section and girder depth.

• 설비공학논문집
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• 제19권6호
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• pp.470-475
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• 2007

The present study has been conducted economic analysis through actual operation of electric heat pump (EHP) and gas engine driven heat pump (GHP) which are installed at the same building in the university. Cost items, such as initial cost, annual energy cost and maintenance cost of each system are considered to analyze life cycle cost (LCC) and economical efficiencies are compared. The initial cost is considered on the basis of actual cost, and annual energy cost is converted into the cost after measuring electricity and gas consumption a day LCC applied present value method is used to assess economical profit of both of them. Variables used to LCC analysis are electricity cost escalation rate, natural gas cost escalation rate, interest rate, and service lives when each of them are 4%, 2%, 8%, and 20 years. The result shows that EHP (148,257,306 won) is more profitable than GHP (161,239,296 won) by 8.05% (12,981,990 won).