• 대한가정학회지
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• 제37권9호
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• pp.103-127
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• 1999

The effects of environmental factors on adolescent’s socialization were examined according to the gender. Data were drawn from 1,412 adolescents. A hypothesized model was tested for male and female students separately by the links among housing, family conflicts, parent-adolescent relationship, family stress, peer relations, mass media, school atmosphere, consumption, consumer socialization, and adolescent’s socialization. There was no difference between male and female students in the predictability of the effects of environmental factors on internal and external socialization. For male students, the internal socialization was directly related to mass media, consumer socialization, peer relations, family stress, mother-adolescent relations, and school atmosphere. The external socialization was directly related to mass media, school atmosphere, consumer socialization, father-adolescent relations, housing, and mother-adolescent relations. For female students, the internal socialization was directly related to mass media, peer relations, father-adolescent relations, and consumer socialization. The external socialization was directly related to mass media, followed by consumer socialization, mother-adolescent relations, school atmosphere, housing, and peer relations. The findings are consistent with a growing body of literature showing that the environmental factors are related to male & female adolescent’s socialization.

• 대한가정학회지
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• 제37권2호
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• pp.175-197
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• 1999

The effects of environmental factors on adolescent's socializaion were examined. Data were drawn from 1,412 adolescents. A hypothesized model was tested the links among housing, family conflicts, parent-adolescent relationship, family stress, prier relations, mass media, school atmosphere, consumption, consumer socialization, and adolescent's socialization. Adolescent's internal socialization was directly related to father-adolescent relationship, mother-adolescent relationship, family stress, housing, peer relations, school atmosphere, consumer socialization. The external socialization was directly rebated to father-adolescent relationship, mother-adolescent relationship, housing, peer relations, school atmosphere, and consumer socialization. Mass media wits the most important factor which could be predicated the adolescent's socialization . The findings are consistent with a growing body of literature showing that the environmental factors are related to the adolescent's socialization.

• Earthquakes and Structures
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• 제4권3호
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• pp.325-339
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• 2013

A number of structural and modal parameters are derived from the strong motion records of an instrumented G + 9 storeyed RC building during Bhuj earthquake, 26 Jan. 2001 in India. Some of the extracted parameters are peak floor accelerations, storey drift and modal characteristics. Modal parameters of the building are also compared with the values obtained from ambient vibration survey of the instrumented building after the occurrence of earthquake. These parameters are further used for calibrating the accuracy of fixed-base Finite Element (FE) models considering structural and non-structural elements. Some conclusions are drawn based on theoretical and experimental results obtained from strong motion records and time history analysis of FE models. An important outcome of the study is that strong motion peak acceleration profile in two horizontal directions is close to FE model in which masonry infill walls are modeled.

• 대한기계학회논문집A
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• 제29권6호
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• pp.804-808
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• 2005

A pneumatic tire is made up of many flexible filaments of high modulus cord of natural textile, synthetic polymer, glass fiber, or fine hard drawn steel embedded in and bonded to a matrix of low modulus polymetric material. Adhesion property of these materials is very important in tire durability safety because belt-leaving-belt tread separation reduces the ability of a driver to control a vehicle, whether or not the separation is accompanied by a loss of air. In this study adhesion test of carcass-belt-tread is conducted on material properties of 5 PCR tire model, which are on sale in domestic market and analyzed adhesion properties. For those tire models FMVSS 109 indoor high speed durability test is conducted to analyze the correlation between adhesion force and high speed performance of tires and found the correlation between the two test results.

• 대한산업공학회지
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• 제26권2호
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• pp.171-182
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• 2000

For the last five years, data mining has drawn much attention by researchers and practitioners because of its many applicable domains. This article presents an adaptive decision tree algorithm for dynamically reasoning machine failure cause out of real-time, large-scale machine status database. Among many data mining methods, intelligent decision tree building algorithm is especially of interest in the sense that it enables the automatic generation of decision rules from the tree, facilitating the construction of expert system. On the basis of experiment using semiconductor etching machine, it has been verified that our model outperforms previously proposed decision tree models.

• 한국IT서비스학회지
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• 제9권1호
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• pp.1-25
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• 2010

Many organizations are facing larger and more frequent changes in the current economic and managerial environment. And what is more, change is supposed to be a business as usual. Considering the importance of change management process and the organizational competency to rapidly and successfully change, in this study the components of change management maturity(CMM) was selected such as the leadership, communication, resistance, people culture factor, methodology, functional group, and change review. And information system performance affected by CMM is confined to the efficiency and effectiveness of information systems. Some results from the verification of research hypotheses and the analysis of the most appropriate model was drawn out. The result of this study can be applied to all organizations which plan to manage more successful change and implement more effective information systems.

• 한국소성가공학회:학술대회논문집
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• 한국소성가공학회 2005년도 추계학술대회 논문집
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• pp.291-294
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• 2005

Recently, the usage of aluminum alloy is rapidly increasing in automobile industry to achieve weight reduction for fuel efficiency. However, design of forming process of aluminum is more difficult than steel because of poor formability and severe springback. Since applications of finite element analysis for the design of sheet metal forming process are actively performed, it is required to conduct proper consideration of aluminum material behavior. In this study, a plane stress yield function Yld2000(Yoon et al., 2000), proven to describe well the anisotropic behavior of aluminum alloy, is implemented for FE analysis. One element test is considered to verify the validity of implementation of Yld2000 model. In addition, cylindrical cup drawing test is performed to verify earing shape of a drawn cup.

• 한국농공학회지
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• 제12권4호
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• pp.2063-2077
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• 1970

The Purpose of this study is to give the hydrologically basic data for the development of water resources in Korea and a quantity of daily average precipitation and its frequency in a year are investigated to study the presumption which is affected to river flow. Characteristics of precipitation is poor as source of water resources compared with its efficiency. So, because of such characteristics of precipitation, river flow also is in harmony and distribution of river flow comes to the result of irregularity, that is, range of river coefficiet between the quantity of maximum river flow and others river flow is big, and it is insufficient as source of water resources. Yearly river flow being expressed by daily unit indicates the ratio(%) of distribution to total yearly river flow, and the model of hydrograph is drawn up. The gives the basis to make yearly water balance sheet. This study is not completed, yet but in forth-coming days, the water will try continuously to give more correct basis for the development of water resources according to a great deal of data.

• 한국시스템다이내믹스학회:학술대회논문집
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• 한국시스템다이내믹스학회 2000년도 학술대회발표논문집
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• pp.29-37
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• 2000

In this paper an attempt is made to understand contribution factors in the field of electronic commerce(EC). To do that, we adopt and modify an existing commerce model. The following two major conclusions are drawn from our simulation. Most of all, the diminution of information delay introduce monotonous growth rather than fluctuation of EC market. The stable increase of revenue or market scale makes us decide the employment or capacity scale quickly. Second, for favorable and continuous evolution of EC, utilization system of electronic money should be established steadily. The following findings strongly support our claim: We found full oscillation of EC market when electronic money system didn't established well. On the contrary, if electronic money system could provide fast cash flow and fully trustful function, decisions of company or consumer would be executed promptly.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2010년도 추계 학술발표회 2차
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• pp.113-121
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• 2010

Granular Compaction Pile are commonly used to improve bearing capacity and reduce settlements of soft soil in coastal and lowland areas. In this paper, through the field load test results of straight granular compaction piles and taper granular compaction piles, material properties of ground and GCP for numerical analysis were drawn and numerical model was established. In the numerical analysis of taper granular compaction piles with 3 different sections, a optimum dimension of taper granular compaction pile was considered at the side of settlement.