• IE interfaces
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• v.15 no.1
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• pp.64-72
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• 2002

Broaching machine is widely used for machining inner shaped slots in the work-pieces, and provides vertical motion (usually hydraulically powered) between tool and work-piece. In this study, we modelled the tool life process and investigated economic tool life of broaching machine. Tool life process is divided into wear-process and succeeding failure process. Wear process is defined as machining wear and failure process as 'chipping' occurred by random shock. We modelled wear process as linear regression function for products amounts and assumed failure process as Poisson process. Economic tool life is defined as the number of lots which minimizes average tool related cost per lot and analyzed by using age replacement policy technique. As tool-related cost factors, we consider tool replacement cost, tool maintenance cost and quality costs of products. The results of this study can be applied to analyze life process of general machining tools.

• Journal of the Korean Home Economics Association
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• v.29 no.2
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• pp.135-154
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• 1991

The purposes of this study are: 1) To find out overall family life issues percieved by the middle-classhousewives in their forties. 2) To examine detailed aspects related to middle years crises, leisure activities, children issues, family economy issues, and housing issues. 3) To clarify solutions to, and provide basic data on family issues raised by the middle-class families. The middle-class housewives in their forties living in the Seoul area were the subject of the survey. The sample size analysed in this study was 422. Data were analysed by the frequency, mean, percentile, standard deviation, X2-test, analysis of variance, multiple classification analysis, analysis of multiple regression, and Scheffe-test as a post-hoc analysis. The conclusions are as follows: First, the middle-class housewives tend to give more importance on children issues, especially on academic achievement and career development. Second, family cohesion of middle-class families is comparatively high and intra-familial conflict is low, and middle years crisis of housewives is comparatively low, too. Third, the stability of middle-class families can be found in household economic management patterns. one fourth of the families own stocks and two fifths of the families own real estate except their own dwelling house. Be based on their property income add to their labor income, middle-class families are showed their economic stability, however, intra-class inequality is found, too. Fourth, the great part of middle-class families that possess their own house, tend to be unsatisfied with their housig scale, and a half of the families expect to enlarge their housing scale for more comfortable and convient living.

• Proceedings of the KIEE Conference
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• 1988.07a
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• pp.975-979
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• 1988

This paper summarizes economic considerations for building automation. While the market for energy management systems(EMS) has been exploding, there are many indications that the pendulum of hight expectations may have swung too far. This is a very important reason for energy management system in both existing and new buildings. Because facilities continue to expand in size and their operations grow more complex, the use of automated systems to control and monitor both programmable and nonprogrammed function becomes an economic necessity. The following is offered as engineerings of economic consideration for building automation systems. Not only get a complete return on investment but increase profits in a few years through savings incurred in labor, utilities fuel and extended equipment life.

• Journal of Families and Better Life
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• v.24 no.1 s.79
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• pp.141-158
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• 2006

The purpose of this study was to investigate the changes of lives and problems of 'Kirogi'(or Wild Goose) fathers, who were called fathers in the 'Kirogi' families, South Korean families separated by an ocean. They almost sent too much money that were $50-100\%$ of their family income to the families abroad, and got economic pressures so severely. More or less, they sold their own real estates, moved to much smaller sized house. and often expended the saving money. Also, they had difficulties of taking care of their children and felt lonely very much. By the hand, they might experience the adaptation process through 3 stages-troubles, acception(or wandering or enjoy), adjust (or violation). They had three types of problems, that is, family relationship problem(the isolation), psychological problem(loneliness and self-control), economic problem (financial pressure and drop of economic status). They found the strategies to overcome these problems for themselves. Firstly, they took lots of methods like email, internet chatting, phone, etc. to communicate with their family everyday and made many events to strengthen the ties among families. Secondly, they got rid of stresses mainly by joining with their colleagues at work. Finally, they decided to lower the standard of living of their family in foreign country or tried to find their wives' jobs to prevent the financial hardship.

• Proceedings of the Korean Institute of Interior Design Conference
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• 2005.10a
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• pp.221-222
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• 2005

Nowadays, the consuming society, the quality of wideness is increasing as the economic life level increases. Modern's any of large department stores, playing a very important role in the middle of our consuming culture, is creating a new life culture and life patterns including producing a new consuming value, too. This is a plan for a renewal design of an inner shop at a department store for brand launching in Seoul, which was planed to escape from the brand's own cold color to show up the product's color using indirect illumination. It was also considered clients' path lines who may keep at a distance to come into an expensive brand's store by designing the whole area as a show room, so there a window display and a harmony with the products let the shop be well functionalized.

• Journal of Korean Home Economics Education Association
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• v.1 no.1
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• pp.43-52
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• 1989

The purpose of this paper is to study the situation of present housing education and to plan the development of housing education which is valuable as a basic information adjusted a rural condition. The conclusions are as follows； The present educational contents of housing life don’t emphasize the social, economic, and psycological part, but emphasize too much the physical part. Especially, it deals with the general part for Citizens and doesn’t appropriate to the housing condition of the students in rural environment. Therefore, the present educational contents of housing life needs to modify.

• Journal of Families and Better Life
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• v.13 no.4
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• pp.115-124
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• 1995

The purpose of this study was to accept its contents as lessons for today and to search for the correct way to lead home economy of the future by way of retranslating home economic view in literatures and documents of Cho-sun Dynasty(1392-1910) Through studying Cho-sun's literatures and documents: 「Ne-hun」 by the queen So He 「Kyou-dyoung-yo-ram」by Lee Whang 「Kyung-mong-yo-kul」by Lee Yul 「Song-ho-sa-sul」by Lee IK 「Sa-so-jol」by Lee Duk Moo「Buk-hak-ee」 by Park Je Ka 「Mok-min-sim-su」 by Jung Yak Yong. The results of this study can be summarized as follows : 1. The view of income: 1) Cut down on the too much greed of property (property income) 2) Work hard with diligence(earned income). 2. The view of expense : 1) Get food clothing and housing with frugality 2) Spend money for home rites and reception of guests with manner and truth without extravagnace. 3. The view of buying and selling: Buy and sell with credit. 4. The view of borrowing and lending: Borrow and lend money honestly,. 5. The view of home book-keeping : Keep home book-keeping every day. 6. The view of economic preparation : Save for a rainy day wisely.

• Korean journal of communication and information
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• v.16
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• pp.7-35
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• 2001

This paper examined the present status of local newspapers and their problems. It was originated from the fact that the number of local newspapers have continuously increased since 1987 when the establishment of newspaper company became convenient, and that as a result the competition among local newspapers became high and several unexpected negative out comes brought forth. The analytical focus of this parer was placed on the internal and external environments surroundings local newspapers. The results showed followings: There are too many local newspapers competing each other in the same area; Financial crises mainly caused by over-competition are critical; Ownership and business operations are too distorted to take the socially expected role of newspapers; Many newspapers are often mobilized for the political and economic purposes of the owner; Market rules and advertising inducement practices are likely to be violated because of over-competition; the morales of Journalists are decreased and work qualities are deteriorated. On the basis of these findings this paper suggested several policy implications: The structure of ownership has to be changed into a direction where a few major stock-holders cannot influence the whole business operations; Top managers have to change their business motivation from profit-seeking to profit-sharing; business practices has to be open and clean; New editorial polices attracting readers have to be established; qualified Journalists have to be recruited and they have to be retrained throughout their career life.

• Proceedings of the Korean Institute of Interior Design Conference
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• 2003.05a
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• pp.123-126
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• 2003

Internationally, Korean people and society are known to be workaholic, however, recently some changes have come with the inauguration of the 5 working-days system as well as the rising of economic power and high level of education. Many people come to enjoy leisure time with various activities. Especially, arts become the subject of concern as a kind of leisure life, and also gallery become a important space. However, the renovation of the gallery space is required Inevitably because many galleries have been located in too formal or fixed building space, and the management of it has not been executed thoroughly. This study aims at the suggestion of the specialized and differentiated renovation plan for gallery as cultural space offering the right notion and information about the arts as well as rest to citizens, also as exhibit space showing the object efficiently.

• Journal of Families and Better Life
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• v.20 no.5
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• pp.69-85
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• 2002

The purpose of this study was to develop a scheme to standardize apartment management expenses levy. I have conducted theoretical research on the literature for the foundation of this study. I have also surveyed many different kinds of levies with help from several apartment complex managers in Busan as well as the executive secretaries of Busan Citizen's Coalition for Economic Justice. I held 30 meetings with the experts in this process to discuss the standardization of the levy. The finalized scheme for standardization is in line with the Act for Management of Multiple Family Housing. Because description of the whole standardized scheme is too lengthy for one article, I decided to present it in three parts. This article is the first part of the series. The remaining two parts will be published in future issues.