• Journal of the Daesoon Academy of Sciences
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• v.18
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• pp.123-134
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• 2004

The aim on this paper is to explain the present state and circumstance in the course of arranging historic classical books in China. In order to approach its purpose, it should make it clear to define the word of "The present"(當代). Furthermore, we need to take a deep notice on the arrangements itself of historic classical books, its influences and contributions, reflecting this process carefully with those historical, cultual and social points of view due to the meaning of "The present" in China. Starting from this considerate view, first of all, I would like to determine the accurate time of "The present" to be the period of time from October, 1949 to December, 2003. It can be described very suitably well as "bamboo sprouts grow fast after a rainfall"(雨後春荀). This tremendous works in the arrangements of Classics have gone through sweets and bitters of times during 50 and several years. However, this work in process has overcome so much troubles and exclude obstacles in doing so, gradually begun to bear tasteful fruit of many publications, about 10,000 works so far. Although it has gone far with very little amount of works in comparison with the remains that would be put in order in the incoming future, it succeed effectively to the spirit and soul in Chinese culture and people. Illuminating the development in its historical steps and analyzing elaborately flows in cultural and ideal elements, it is known that this work of arrangements not only give a very firm basis for excellent Chinese cultural tradition, but also extend high level of idea and thoughts in their thoughts so that build up the spirit in socialism on the solid foundation. This paper will give a explanation and analysis on this works and its contributions. At the same time, it examine and give a good, careful, and close look on the arrangement of historic classical books in China by various means of classifying into various types and style, searching for many methods, and showing indication and directions that might be right in "the present".

• Journal of the Korean Operations Research and Management Science Society
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• v.13 no.2
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• pp.66-71
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• 1988

Let B be present value of some sequence. This paper concerns the maximization of the expected utility of the present value B when the utility function is exponential.

• Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
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• 2004.11a
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• pp.55-60
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• 2004

We have peformed an investigation about the present geodetic VLBI observation problems and a study about the trend of technical development in the future. Especially, I will present the research results about the present status of the technical development and the feasibility for e-VLBI which is recently highlighted.

• Journal of the Korean Home Economics Association
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• v.36 no.11
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• pp.43-59
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• 1998

The purpose of this study was to analyze the residential preferences, the type of house, the size of living space, and the region for later life and contributing factors to their housing plan. The sample in this study consisted of 572 aged couple living in Korea. Statistics employed for the analysis were frequencies, means, X2test, logit analysis and multiple regression. The results could be summarized as follows. They preferred 31.2 pyung as living space, the single detacted house(81.1%) and living in middle-small cities or rural area. The present living space, present living area, satisfaction of economic status had significant effects on the living space in later life. Those who had a plan to live in the single detached house were affected by husband's educational attaintment, the type of present house, present and future living region. And the factors affecting furture living region were present living region, household income, household expenditure, total asset and preferred housing type. The affecting factors were different from future residential preferences by occupation and health status.

• Journal of Korean Institute of Industrial Engineers
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• v.24 no.1
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• pp.51-59
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• 1998

This paper presents a new present value measure, the dynamic present value, or DPV. DPV takes into account not only the value of the realized cash flow but also that of potential cash flow. The DPV approach enables the analyst to observe differences in the present value of the alternatives every period over the whole time period of interest. This is the most fundamental advantage of the DPV approach over the traditional present value approach in which the present value of the alternatives is evaluated only one particular point of time. The concepts of the realized and potential cash flows are also developed in this paper. These new concepts are found to be useful elements in evaluating economic alternatives.

• Proceedings of the Korea Concrete Institute Conference
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• 1993.10a
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• pp.290-295
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• 1993

The purpose of the present study is to propose a realistic method to analyze the prestressed concrete members subjected to pure torsion. The present study device a method to realistically take into account the tensile stiffness of concrete after cracking. The effect of biaxial compressive and tensile loading on the compressive and tensile strength of concrete is also taken into account in the present model. The present model can predict not only the service load behavior, but also up to the behavior of ultimate load stages. The comparison of the present theory with experimental data indicates that the proposed model dipicts reasonably well the actual behavior of prestressed concrete members.

• Proceedings of the Korean Nuclear Society Conference
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• 1996.11a
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• pp.415-420
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• 1996

The main objective of the present study is to propose a new measure of uncertainty importance based on distributional sensitivity analysis. The new measure is developed to utilize a metric distance obtained from cumulative distribution functions (cdfs). The measure is evaluated for two cases: one is a cdf given by a known analytical distribution and the other given by an empirical distribution generated by a crude Monte Carlo simulation. To study its applicability, the present measure has been applied to two different cases. The results are compared with those of existing three methods. The present approach is a useful measure of uncertainty importance which is based on cdfs. This method is simple and easy to calculate uncertainty importance without any complex process. On the basis of the results obtained in the present work, the present method is recommended to be used as a tool for the analysis of uncertainty importance.

• Journal of the Korean housing association
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• v.7 no.2
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• pp.29-44
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• 1996

This study investigated the Present traditional Korean farmhousing and Past housing (from 1928~1956) based on a survey of 23 Korean women from Kyongki Province. It was primarily concerned with a Comparison of the present and past housing ; the size and plan of the house and finishing materials of Anbang(The masters bedroom : ondol) and the kind of furniture. lighting and heating in the Anbang. I was also interested in identifying the socio-demographic and physical variables that influenced the housing, past and Present. Bibliographical studios. cultural approaches and field surveys with tape recordings and questionnaires were used to collect the data. The results showed that the former Housing(averag ; 54 years ago) was very poor. Most homes lacked sufficient space. furniture and experienced a shortage of fuel. The most decisive difference from the present was the large family size. It would be beneficial to make a similar study in both the southern and northern regions of Korea.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2016.05a
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• pp.151-153
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• 2016

80/128-비트 마스터키 길이와 ECB, CBC, OFB, CTR의 4가지 운영모드를 지원하는 PRESENT 경량 블록암호 프로세서를 설계하고, Virtex5 FPGA에 구현하여 정상 동작함을 확인하였다. PRESENT 크립토 프로세서를 $0.18{\mu}m$ 공정의 CMOS 셀 라이브러리로 합성한 결과 8,237 GE로 구현되었으며, 최대 434 MHz 클록으로 동작하여 868 Mbps의 성능을 갖는 것으로 예측되었다.

• Structural Engineering and Mechanics
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• v.61 no.1
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• pp.49-63
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• 2017

This paper presents an original hyperbolic (first present model) and parabolic (second present model) shear and normal deformation theory for the bending analysis to account for the effect of thickness stretching in functionally graded sandwich plates. Indeed, the number of unknown functions involved in these presents theories is only five, as opposed to six or even greater numbers in the case of other shear and normal deformation theories. The present theory accounts for both shear deformation and thickness stretching effects by a hyperbolic variation of ail displacements across the thickness and satisfies the stress-free boundary conditions on the upper and lower surfaces of the plate without requiring any shear correction factor. It is evident from the present analyses; the thickness stretching effect is more pronounced for thick plates and it needs to be taken into consideration in more physically realistic simulations. The numerical results are compared with 3D exact solution, quasi-3-dimensional solutions and with other higher-order shear deformation theories, and the superiority of the present theory can be noticed.