• Proceedings of the KIEE Conference
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• 2006.04a
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• pp.129-131
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• 2006

The performances of neural network systems mainly depend on the kind and the number of input patterns for its training. Hence, the kind of input patterns as well as its number is very important for the character recognition system using back-propagation network. The more input patters are used, the better the system recognizes various characters. However, training is not always successful as the number of input patters increases. Moreover, there exists a limit to consider many input patterns of the recognition system for cursive script characters. In this paper we present a new character recognition system using the back-propagation neural networks. By using an additional neural network, an input pattern generation method is provided for increasing the recognition ratio and a successful training. We firstly introduce the structure of the proposed system. Then, the character recognition system is investigated through some experiments.

• Journal of Korean Society for Atmospheric Environment
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• v.18 no.E2
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• pp.97-106
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• 2002

The purpose of this study was to quantitatively estimate the washout removal efficiencies of criteria air pollutants such as SO$_2$, TSP, PM10, CO, NO$_2$, and O$_3$corresponding to the amounts and durations of precipitation. The removal patters by washout were studied with air pollutants data and the corresponding precipitation data in Seoul, Korea during the periods of 1990 to 1999. In addition, washout patterns were classified into four seasons and four time Bones, i.e., night, morning, afternoon, and evening. In this study, natures of air pollutants by sequential precipitation were also intensively studied by examining the linear relationships between removal efficiencies and the amounts and durations of precipitation for each pollutant. The results of this study showed that SO$_2$, TSP, and O$_3$were rapidly removed by initial precipitation; however, NO$_2$was slowly removed 2-hour after precipitation. Both CO and PM10 were weakly removed by washout and their removal patters showed to be irregular.

• Proceedings of the Korea Electromagnetic Engineering Society Conference
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• 2001.11a
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• pp.319-324
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• 2001

An anatomical head and a multi-layered spherical head with a half-wave handset antenna have been analysed and compared using the Finite-Difference Time-Domain (FDTD) and the Eigenfuntion Expansion Method (EEM), respectively. The analysis shows that results from a simple spherical head with a half-wave antenna can be used to predict the main antenna radiation patters as well as estimates of the peak SAR in a handset user's head. Various representative design data are presented using a six-layered spherical head with a half-wave antenna at 900 MHz

• Journal of the Korean Home Economics Association
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• v.38 no.11
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• pp.165-179
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• 2000

Korean population patters has become so called aged society by this July through the aged composed over 7% in whole population. It is worldly concern how can increase elderly people’s life satisfaction by providing homelike elderly housing facilities. The purpose of this study was to investigate the meaning of home, how to express the homelike characteristics into physical design and identify their housing satisfaction. The results were discussed and design ideas were suggested.

• Proceedings of the Korean Information Science Society Conference
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• 2001.10a
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• pp.484-486
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• 2001

J2EE 플랫폼에 기반 하는 웹 애플리케이션의 수는 최근 들어 급격히 증가하는 추세이다. 이러한 추세에 따라 웹 애플리케이션의 성능 향상을 위한 표준화가 부각되고 있다. 본 논문 에서는 이러한 웹 애플리케이션의 표현계층에 대한 설계 패턴을 알아보고 이러한 패턴을 분류하여 표준화시키고자 한다. 이러한 분류는 웹 애플리케이션의 빠른 생성을 위한 표현 계층 자동생성 템플릿 설계의 바탕이 된다.

• Korean Journal of Community Nutrition
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• v.6 no.4
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• pp.686-702
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• 2001

The purpose of this study is to suggest the menu patters of people in Kangbukgu for the basic data of the nutrition education program in its health center. The dietary intake was investigated by the 24-hour recall method for 488 subjects. To analyze patterns, dishes were classified into major staple food, kimchi, soup and side dishes and also classified into 24 categories by cooking method. Patterns by the kind of dishes for the subjects were cooked rice + soup + kimchi 〉noodle + kimchi > cooked rice + kimchi in the order of frequency of use. Patterns for breakfast were, cooked rice + soup + kimchi > coated rice + soup + two dishes of kimchi. For lunch, patterns were, noodle + kimchi > footed rice + kimchi = cooked rice + soup + kimchi. For dinner, patterns were, cooked rice + soup + kimchi = cooked rice + kimchi > noodle + kimchi. Results of analyzing by the number of dishes, were cooked rice + soup + kimchi + one side dish 〉cooked rice + soup + kimchi + two side dishes. It was significantly different by meal(p<0.01). The results of analyzing patterns for the main staple foods were cooked rice〉noodle > bread in that order. It was significantly different by meal(p<0.01). The results of analyzing patterns, with those considered basic food, cooked rice, soup and stew, were cooked rice + soup > cooked rice > cooked rice + stew. It was significantly different by meal(p < 0.01). With these results, the menu patterns of people in Kangbukgu were different by meal. The main dish was mostly cooked rice and the menu has the traditional menu patters, composed of cooked rice, soup and kimchi.

• Journal of the Korean Home Economics Association
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• v.37 no.8
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• pp.117-132
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• 1999

This study analyzed how not only socio-economic variables but also lifestyle variables affect the expenditure and the patterns of households. The result of multiple regression analysis resealed that economic variables(e.g, income, saving, property) and lifestyle variable(e.g, enjoyment and convenience seeking type) affected the consumption expenditure. Based on the result of cluster analysis, The consumption expenditure patterns of urban households were separated as 1)necessity dominant pattern, 2)transportation $.$ communication dominant patters, 3)other consumption dominant pattern, 4)education$.$culture and recreation dominant pattern. The result of logistic analysis revealed that debt, saying and living location variables were major factors to determine the consumption expenditure patterns of urban households. But did not Influence on the Consumption Expenditure Patterns.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2002.05a
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• pp.271-274
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• 2002

The 3-D measurement using interference pattern projection is very attractive because of its high measuring speed and high sensitivity. When a sinusoidal amplitude grating was projected on an object, the surface-height distribution of the object is translated into a phase distribution of the deformed grating image. The patters was generated by a interferometer, and a PZT was used to shift the fringes on the target surface. The phase-acquisition algorithms are so sufficiently simple that high-resolution phase maps using a CCD camera can be generated in a short time. A working system requires a interferometer, a PZT, and a detector array interfaced to a microcomputer. Results of measurements on the diffused test objects are described.

• Journal of the Korean Society of Clothing and Textiles
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• v.26 no.1
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• pp.62-73
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• 2002

The purpose of this study was to develop men's formal jacket pattern for the Korean males of age 25 to 34 age with an average physique. Through the survey on seven industries of the ready-made men's wear, we investigated size systems and jacket patters presently practiced. From the fitting test of four patterns (three for ready-made jacket patterns, one for educational pattern) the moat favorable and comfortable pattern was selected. New experimented jacket pattern was based on it. The findings were as followed. 1) Survey of the domestic ready-made garment industries showed that each company classified its own manufactured goods according to its own size systems. 2) Anthropometric measurments of forty males for the subjects of lilting test were agreed to the survey of National Anthropometric of Korean(1997). These were also compatible to the standard size (100-88-175) of investigated industries. 3) Experimental jacket pattern was completed through the three times rectification and it gained higher ratings.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2003.06a
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• pp.784-787
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• 2003

The present work covers three-dimensional flow simulation and deformation analysis of injection molded plastic lenses using solid elements. A numerical scheme to evaluate part deformation has been proposed from the results of injection molding analysis. Proposed scheme has been applied to the injection molding processes of optical plastic lenses: a spherical lens and an aspheric lens for a photo pick-up device. Through the simulation processes. residual stress is estimated and the final deformed patters are obtained for both products. The reliability of the proposed approach has also been verified in comparison with the results of real experiments.