淸末敎育改革興國民敎育

孫準植 한국중앙사학회 1999 중앙사론 Vol.12-13 No.-

RP를 이용한 용접비드 형상예측 시스템 개발에 관한 연구

손준식,김일수,Yarlagadda, Prasad K.D.V.,박창언,성백섭,이진구,정호성 한국공작기계학회 2002 한국공작기계학회 춘계학술대회논문집 Vol.2002 No.-

Generally, the use of robots in manufacturing industry has been increased during the past decade. GMA (Gas Metal Arc) welding is an actively growing area and many new procedures have been developed for use with high strength alloys. One of the basic requirement for welding applications is to study relationships between process parameters and bead geometry. The objective of this paper is to develop a new approach involving the use of neural network and multiple regression methods in the prediction of bead geometry for GMA welding process and to develop an intelligent system that enables the prediction of bead geometry using Rapid Prototyping (RP) in order to employ the robotic GMA welding processes. This system developed using MATLAB/SIMULINK, could be effectively implemented not only for estimating bead geometry, but also employed to monitor and control the bead geometry in real time.

GMA용접에서 유전자 알고리즘을 이용한 비드높이 예측 모델 개발에 관한 연구

손준식,김일수,장경천,이동길 한국공작기계학회 2006 한국공작기계학회 추계학술대회논문집 Vol.2006 No.-

Gas metal arc welding process has been chosen as a metal joining technique due to the wide range of usable applications, cheap consumables and easy handling. Three main indicators such as arc voltage, welding speed and welding current have a big influence in the quality welding. Since all these factors affect the quality of the welded joining parts, the effect of these parameters was investigated experimentally. In this paper, an attempt has been made to develop the predicted models (quadratic and cubic) for bead height using genetic algorithm. Performance of the developed models were proved to be compared to the regression equation.

신경회로망과 유전자 알고리즘을 이용한 열연두께 정도 향상

손준식,김일수,최승갑,이덕만 한국공작기계학회 2002 한국공작기계학회 추계학술대회논문집 Vol.2002 No.-

In the face of global competition, the requirements for the continuously increasing productivity, flexibility and quality (dimensional accuracy, mechanical properties and surface properties) have imposed a major change on steel manufacturing industries. The automation of hot rolling process requires the developments of several mathematical models for simulation and quantitative description of the industrial operations involved. To achieve this objectives, a new learning method with neural network to improve the accuracy of rolling force prediction in hot rolling mill is developed. Also, Genetic Algorithm(GA) is applied to select the optimal structure of the neural network and compared with that of engineers experience. It is shown from this research that both structure selection methods can lead to similar results.

방사형기저함수망을 이용한 열간 사상압연의 압연하중 예측에 관한 연구

손준식,이덕만,김일수,최승갑 한국공작기계학회 2003 한국공작기계학회 추계학술대회논문집 Vol.2003 No.-

A major concern at present is the simultaneous control of transverse thickness profile and flatness in the finishing stages of hot rolling process. The mathematical modeling of hot rolling process has long been recognized to be a desirable approach to investigate rolling operating practice and the design of mill equipment to improve productivity and quality. However, many factors make the mathematical analysis of the rolling process very complex and time-consuming. In order to overcome these problems and to obtain an accurate rolling force, the predicted model of rolling force using neural networks has widely been employed. In this paper, Radial Basis Function Network(RBFN) is applied to improve the accuracy of rolling force prediction in hot rolling mill. In order to verify and analysis the performance of applied neural network, the comparison with the measured rolling force and the predicted results using two different neural networks - RBFN, MLP, has respectively been carried out. The results obtained using RBFN neural network are much more accurate those obtained the MLP.

신규 3MA 메타크릴레이트 프리폴리머를 이용한 치과용 치면열구전색재의 제조 및 특성

손준식,박귀덕,김재진,한동근 한국생체재료학회 2007 생체재료학회지 Vol.11 No.1

As an alternative to 2,2-bis[4-(2'-hydroxy-3'-methacryloyloxypropoxy) phenyl]propane (Bis-GMA) that contains Bisphenol A, a possible endocrine disrupter, novel multifunctional methacrylated prepolymers, 80-3MA and 4000-3MA mix (2MA:3MA:4MA mixture=45:45:10 wt%), were synthesized and then dental pit and fissure sealants composed of the novel prepolymers, diluent, and inorganic filler were prepared. The viscosities of the prepolymers were much lower than that of the Bis-GMA control. From the results of 1H-NMR analysis, the chemical structures of the prepolymers were similar to that of Bis-GMA. In addition, the polymerization shrinkage, photoconversion, polymerization depth, and diametral tensile strength of the dental sealants formulated with 80-3MA and 4000-3MA mixture prepolymers exhibited comparable to or better than those of the existing Bis-GMA-based one. These results suggest that the novel 3MA methacrylated prepolymers which have no endocrine disrupter can be an alternative to Bis-GMA and be applicable to biocompatible dental materials.

일제 하 ‘대만의식’의 형성 배경과 그 성격

손준식 한국중앙사학회 2010 중앙사론 Vol.0 No.31

This article deals with the speculation on the formational background and characteristics of "Taiwanese consciousness" during the Japanese colonization, which becomes the mental background of Taiwanese liberation theory, that is, the biggest issue of the current Taiwanese society. The Taiwanese society during the Chung Dynsty was not equipped with the condition to develop "Taiwanese consciousness" on the basis of the territorial identity of Taiwan. It was because Taiwan at that time was regionally divided into several districts between north and south, which were rarely contacted with one another, and thereby, its administrative districts were also determined by this regional restrictions, and each administrative districts developed its own discrete community on the basis of "township economy." Furthermore, in the early stage of main Chinese immigration to Taiwan, the immigrants considered regional consolidation as important, and built their community on the basis of their regional language identity. In fact, these immigrants regarded their regional hometown of China as their place of identification, and thus, their regional consciousness was very strong, causing frequent conflicts between different regional groups. Since then, as the main Chinese immigrants (the people of Han tribes) got domesticated in Taiwan, the regional consciousness got blurred and a new collective consciousness to consider Taiwan as their object of identity emerged by 1860s. However, this took the time of Japanese colonization to get concertized as a complete Taiwanese consciousness. Japan could occupy Taiwan as a result of the Sino-Japanese War, but it paid the big price to cope with the strong resistance by Taiwanese people. However, most of anti-Japanese resistances by armed Taiwanese people were pre-modern forms of protest based upon Chung dynasty as their national identity or setting up the motto for the change of old dynasty. In this respect, the Taiwanese society in the early stage of Japanese colonization could not form the Taiwanese national identity as well as the Taiwanese consciousness as their local identity. By the animosity against their betrayed country and the love for their land as well as the separation policy of Japanese colonial government, Taiwanese people were getting segregated from China and accumulated Taiwanese consciousness against the exploitation and racial discrimination by the Japanese colonial government. After their occupation of Taiwan, Japan stabilized the public security by subduing the protest groups, and built up the infrastructure of capitalist system by renovating the real estate controlling system and constructing the transportation system. They also set up the colonial economic system to make Taiwan as a place for providing food and tropical products. Japanese colonial exploitation could be found in the tax burden of Taiwanese people and the heavy influx of Japanese industrial capital as well as the percentage of industrial laborers and teenage laborers. It could be also found in the confiscation of pageantry lands by allowing the Japanese capital group to use those lands as well as the policy of allowing Japanese sugar company to control the price of sugar cane products. On the one hand, Japan set up the despotic system to control rights and duties of Taiwanese people by adopting acting- legislature system, and this tendency continued in the general governor system. To maintain this system, the Japanese colonial government functioned as a police state by employing the intimidating and vast power of the police. The police threatened Taiwanese people to obey the government and discriminated them with their power and authority. The racial discrimination to Taiwanese people was done in the recruitment of government officials, their promotion and salary as well as the education opportunity and content, teacher's quality, education budget and school admission system. Particularly, school education functioned as a means of reconfirming the social relationship and political role between the oppressors and the oppressed. On the other hand, various policies by Japanese colonial government in Taiwan resulted in the consolidation of Taiwanese modern consciousness and the figuring out of regional problems, even though they were originally for the benefit of Japan. The construction of transportation network promoted social mobility, and thereby, it narrowed down the distance between ethnic groups. The currency reform and measure reform instigated the distribution of the goods and the capital. Japanese language policy eradicated the serious communication problems that many dialects caused among the local tribes. As a result, the consolidation between local tribes was strengthened and the local township based economy was converted into the national market economy. Also, industrialization and urbanization promoted social communication in Taiwan, and thus, propelling the formation of Taiwanese consciousness. By these background that I mentioned above, the Taiwanese consciousness as a local identity became dominant by 1920s, and it was confirmed by the use of the term "Taiwan" and the "Taiwanese people." The Taiwanese imagination, which started by Taiwanese students in Japan, became stronger by anti-colonial resistance, but it broke up by the strategic conflicts. By the attitude to national identity and the means of movement, The anti-colonial movement of the Taiwanese people during the Japanese colonization can be categorized into "Nationality Group", "Watching Group", "Taiwanese Revolution Group," and "Enlightenment Group." "Nationality Group" and "Watching Group" set the return to China as their ultimate goal, and in that sense, these two groups looked similar in their identity attitude, but "Nationality Group" was protesting in the mainland of China while "Watching Group" was in Taiwan and they could not but admit the Japanese power. "Watching Group" recognized that they could not liberate Taiwan from Japanese power, but they adopted the strategy of distinguishing Taiwanese people from Japanese people by employing "Han Race" and "China-centric Ethnicity" for the consolidation of Taiwanese people. Consequently, they promulgated "Taiwanese consciousness" as an independent local unit, representing the Chinese consciousness in reaction to Japanese consciousness. "Taiwanese Revolution Group", which was led by the leftist intellectuals, tened toward the class movement, even though they promulgated "Taiwanese Nationality" and "Taiwanese Independence". The Taiwanese liberation, which was the motto of "Nationality Group", only implied the liberation from Japan. On the other hand, Taiwanese consciousness of "Taiwan Literary Group" which represented "Enlightenment Group" was different from Chinese consciousness in that they put an emphasis on the dominancy of Taiwanese literature.

표면 비드높이 예측을 위한 최적의 신경회로망 선정에 관한 연구

손준식,김인주,김일수,장경천,이동길 한국공작기계학회 2005 한국공작기계학회 춘계학술대회논문집 Vol.2005 No.-

The full automation of welding has not yet been achieved partly because the mathematical model for the process parameters of a given welding task is not fully understood and quantified. Several mathematical models to control welding quality, productivity, microstructure and weld properties in arc welding processes have been studied. However, it is not an easy task to apply them to the various practical situations because the relationship between the process parameters and the bead geometry is non-linear and also they are usually dependent on the specific experimental results. Practically, it is difficult, but important to know how to establish a mathematical model that can predict the result of the actual welding process and how to select the optimum welding condition under a certain constraint. In this paper, an attempt has been made to develop an neural network model to predict the weld top-bead height as a function of key process parameters in the welding. and to compare the developed model and a simple neural network model using two different training algorithms in order to select an optimal neural network model.

1920年上海米貴原因初探

孫準植 한국중앙사학회 2000 중앙사론 Vol.14 No.-

時調의 性格攷 : 主로 終章初句를 中心으로

孫俊式 효성여자대학교 국어국문학연구실 1957 국어국문학연구논문집 Vol.4 No.-