• Proceedings of the Korean Society of Precision Engineering Conference
• /
• 2013.05a
• /
• pp.999-1000
• /
• 2013

• Proceedings of the Korea Concrete Institute Conference
• /
• 2000.10a
• /
• pp.315-319
• /
• 2000

This study is to analyze the effect of the cross beam in bridge design. The analysis on the cross beam using FEM method is to find the best location and numbers of the cross beam in bridges. These analysis will allow economical design and construction in the field.

• The Journal of the Korea Contents Association
• /
• v.12 no.6
• /
• pp.280-292
• /
• 2012

In this study, I tried to find out the effect of the daily living factors(social support, economical status, health condition, leisure activity, communication, consumption activity) on the element life satisfaction(self-respect, personal relations, emotional condition, physical health, consume activity) of life for the aged. For the study, I collected 280 samples from people of 60 year-old adults who reside of in Gyeonggi-do. I used factor analysis, reliability analysis, multi-regression, t-test, ANOVA with SPSS 18.0. The results are as follows. First, satisfaction about aged population sociological character level of significance were difference in factors except gender, statistically. Second, daily living factors and element satisfaction between analysis positive relation. Third, Aged of daily living factors effect to element satisfaction, social support and leisure activity effect to self-respect, are social support, health condition, leisure activity effect to personal relations and physical health satisfaction. and communication effect to Emotional condition and economical status, communication and consume activity effect to economical living satisfaction.

• Journal of Korean Society of Water and Wastewater
• /
• v.26 no.4
• /
• pp.565-578
• /
• 2012

Integrated watershed sewage works program(IWSWP) is defined as implementing, by one of local governments or central government, sewage facilities planning, installation and management for a certain watershed in which criteria of water quality is established and two or more local governments are involved. It is shown that IWSWP is more efficient for the improvement of water quality of water body than conventional local sewage works program(CLSWP) and besides, economical benefits can be achieved by integration of facilities and M&O. In this research, case study for 8 watershed area were investigated to evaluate the difference of effect between IWSWP and CLSWP. The research shows that IWSWP has the money saving result of approximately 12 % by cost reduction for sewage works investment. B/C analysis result shows that B/C ratio of IWSWP was 1.749 and it is higher than B/C ratio of 1.439 for CLSWP. At the same time, the B/C sensitivity analysis is carried out for the rate of discount and the recreational use benefit.

• Journal of the Korean Society of Clothing and Textiles
• /
• v.26 no.11
• /
• pp.1593-1604
• /
• 2002

The purpose of the study were to find how the trend had an effect on a buying motivation, a selecting standard, a frequency of use, a purchase place of cosmetics, makeup and the distinctive quality of social strata of regarding a clothing shopping orientation. The subjects of investigation were the women in twenties who live in Seoul and Chonnam province. This study had been done from May to July 2001, and 660 questionnaires were used for analysis. The measuring tools used were the items of matters of preceding studies and developed ones by researchers on which questionnaires were prepared. Factor and cluster analysis and Duncan's multiple range test, ANOVA, x$^2$-test, frequency, and percentage as analysis methods were used through SPSS. The results of the study were as follows. The clothing shopping orientation divided five shopping orientations such as ostentatious style, enjoyable style, economical style, and prudent style, and an attachment style for special brands and shops. On the basis of this result, the groups 20's females were classified into low groups by the cluster analysis; economical shopping group, indifferent shopping group, conspicuous shopping group, and recreational shopping group. In the case of cosmetics purchasing motives, evaluation criteria of cosmetics, stores selection criteria were found according to shopping orientation subdivision, and there was the significant difference between the groups in frequency of use, a purchase place of cosmetics.

• Proceedings of the SAREK Conference
• /
• 2006.06a
• /
• pp.921-926
• /
• 2006

The present study has been conducted economic analysis through actual operation of EHP and GHP which are installed at the same building of an university Cost items, such as initial cost, annual energy cost and maintenance cost of each system are considered to analyze LCC and economical efficiency is compared. The initial cost is considered on the basis of actual costs, 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 efficiency of both them. Variables used to LCC analysis are electricity cost escalation rate, natural gas cost escalation rate, interest rate, and service lives and when each of them are 4%, 2%, 8%, and 20 years, results of analysis short that EHP(148,257,306 won) is 8.05%(12,981,990 won) more profitable than GHP(161,239,295 won).

• The Transactions of The Korean Institute of Electrical Engineers
• /
• v.64 no.2
• /
• pp.222-227
• /
• 2015

This paper presents the optimal energy generation systems for economical EVs(Electric Vehicles) charging stations located in an island area. The system includes grid electricity, diesel generator and renewable energy sources of wind turbines and PV(Photovoltaic) panels. The independent generation system is designed with data resources such as annual average wind speed, solar radiation and the grid electricity price by calculating system cost under different structures. This sensitive analysis on the varying data resources allows for the configuration of the most economical generation system for charging stations by comparing initial capital, operating cost, NPC(Net Present Cost) and COE(Cost of Energy). Depending on the increase of the grid cost, the NPC variation of the most economical system which includes renewable energy generations and grid electricity can be smaller than those of other generation systems.

• Journal of Families and Better Life
• /
• v.3 no.1
• /
• pp.107-125
• /
• 1985

This paper investigated adult's consciousness with a view to establishing basic data about set-up any concrete plan and provision for elderly life in hoe and society. In this paper, the study of concerned reference and social survey by questionnaire are used. The data is obtained from 326 espondents who are 30 to 4 years old in Seoul and Andong. As to consciousness to the provision for elderly life and situation of set-up any concrete plan, the x2(chi-square) is applied to the analysis of regional, socio-economical, demographic difference. The conclusion of this study are as follows; 1) Although the respondents show positive attitude toward consciousness to the provision for elderly. life, their behavior does not show any sing of translating it into reality. 2) The consciousness to the provision for elderly life varies according to regional, socio-economical, demographic variance. Those who are in their 30's more-educated, and high-income want to be more independent from their children and express strong desire to set-up provision for elderly life in advance. This is also true of those living in city. As a results, as adults(30-54) recognize the importance of provision for elderly life, so the support by the society or governmental policy for the solution of better-life for old people is important. however, mental , physical, economical preparation in family life according to the family life cycle can basic solution.

• Journal of the Korean Society of Costume
• /
• v.33
• /
• pp.201-215
• /
• 1997

The purpose of this study was to investigate the actual state and problems of outlet stores. And examine store attributes shopping orientations information sources according to demographic characteristics for outlet store patronage group. The questionnaires were administered to 400 women living in Taegu. The data were analyzed by using Frequency Percentage Factor Analysis MANOVA. The results of the study were as follows; 1) Outlet stores in Taegu area were run as the type of agency and dealt in most brands of their own companies, There were plenty of as-sortment and merchandise. The discount rate was 50-60% Stores' locations were scattered which made shopping environment incon-venient. 2) The store attributes were composed of five factors such as fashion & products diver-sity service store reputation convenience and price. Shopping orientation were com-posed of six factors such as self-confidence for shopping brand oriented store loyalty & near-store oriented economical self-assumed shopping and difficulty of choice. Information sources were composed of four factors such as print media & display personal information advertising and store visit. 3) There were significant differences be-tween patronage group and non-patronage group in store reputation service fashion & products diversity. Patronage group is more satisfied with these three factors. There were significant differences between patronage group and non-patronage group in brand oriented and economical Non-patronage group was more brand oriented and patronage group was more economical. There were significant difference between patronage group and non-patronage group in print dedia & display factos. Non-patronage group made more use of print media& display than patronage group as information sources. There were significant differences between patronage group non-patrpnage group in age marital status and levle of education.

• Journal of Korean Neurosurgical Society
• /
• v.30 no.sup2
• /
• pp.242-246
• /
• 2001

Objective : The short hospitalization or outpatient care for patients undergoing laminectomy is not popular practice in Korea. We evaluated the clinical and economical significance of short hospitalization for patients undergoing microdiscectomy for their lumbar disc herniation. Material and Methods : From March 1999 to December 2000, patients were hospitalized for intended short period hospitalization for lumbar disc surgery. Their radiological and clinical data were analyzed for their clinical and economical results. We compared these data with 20 patients who hospitalized conventionally. Results : Total of 64 patients were evaluated. Three were lost to follow-up. Mean postoperative hospitalization period is 2.0 days(excluding one patient). Excellent to good outcome was achieved in 90.6 % of the patients. They payed about half expenses for hospitalization compared with conventional group. Their mean number of outpatient visit was 3.0. Conclusion : Short hospitalization for lumbar disc surgery is an acceptable option in Korea. It is also economically beneficial while achieving acceptable clinical results.