김기림은 스티븐 스펜더의 시를 어떻게 읽었는가?

김준환(Joon-Hwan Kim) 한국비평이론학회 2007 비평과이론 Vol.12 No.1

  This paper studies Ki-Rim Kim’s reception and transformation of Stephen Spender’s poetry along with W. H. Auden’s and C. Day Lewis’s during the 1930s and 1940s. Since November 1934, Kim had contrasted Eliot"s conservative politics and passive description of the status quo of the present waste land to Spender’s revolutionary politics, critique of Nazism and Fascism and active struggle to make a new society. Especially, Kim adopted the Auden-generation poets as an alternative to T. S. Eliot with emphasis on their revolutionary poetry and politics and transformed them in the colonial context. Section Ⅱ examines one of the major problems of the previous formalistic studies which have focused on similarities between the two poets in terms of such subject matters as the “train”; Section Ⅲ traces Kim’s reading of Spender, Auden, and Day Lewis and reveals the significance of his reading in the colonial context. In doing so, this paper argues that Kim while receiving their revolutionary poetry and politics did not simply imitate but transform them in the process of de-colonialization, and that it is necessary to re-conceptualize “modernity” and “modernism” in the study of the influence of Anglo-American modernist poetry on Korean modernist poetry.

풍자시론 : 김기림의 엘리엇ㆍ스펜더 읽기

김준환(Joon-Hwan Kim) 한국비평이론학회 2008 비평과이론 Vol.13 No.1

  This paper traces Ki-Rim Kim"s readings or T. S. Eliot and Stephen Spender in his prose works focusing on the notion of "satire." While he was writing the satiric long poem - The Weather Chart - in 1935, Kim frequently criticized not only Eliot"s accurate but passive portrayal of the status quo but also his limited use of satire whose (self-)mocking style could help overcome the sentimental romanticism of "sorrow, grief, mourning, and despair" but could not reach the level of "rage" to overturn the established situation. Kim accepted Spender"s realistic portrayal of the socio-political events as an alternative to Eliot"s symbolic portrayal of spiritual waste land, and Spender"s hope for the future or new society as distinguished from Eliot"s indiscriminate or vague hope for the spiritual regeneration. In the mid-thirties when even the "camouflaged aestheticism" could not be available for Korean writers under the Japanese colonial rule, Kim tried to propose the theory or satiric long poem not only to set up the theory or his modernist long poem and but to reveal his desire to overturn the colonial order indirectly by having recourse to Eliot and Spender.

인공신경망을 이용한 온도프리스트레싱 공법의 적정 가열구간 설정에 관한 연구

김준환,안진희,김강미,김상효,Kim, Jun Hwan,Ahn, Jin-Hee,Kim, Kang Mi,Kim, Sang Hyo 한국강구조학회 2007 韓國鋼構造學會 論文集 Vol.19 No.6

온도프리스트레싱 공법은 강합성거더교 또는 강구조물에 인위적인 온도경사를 가하여 프리스트레싱력을 도입하기 위해 개발된 공법으로, 연속 강합성거더교에 적용할 경우 부모멘트 발생지점인 연속지점부 부근의 바닥판에 프리스트레스를 도입함으로써 콘크리트 바닥판의 인장균열을 억제하는 한편, 교축방향 보강철근 사용량 및 강거더 단면을 감소시킬 수 있어 경제성과 시공성의 향상이 가능한 공법이다. 이전의 연구에서 가열구간을 설정하기 위해 사용한 시행오차법은 비효율적인 것으로 온도프리스트레싱 공법을 적용한 설계가 효율적으로 이루어지기 위해서는 보다 합리적인 적정 가열구간의 설정기법이 필요하다. 본 연구에서는 이러한 문제점을 개선하기 위하여 패턴인식, 최적화, 진단 및 예측 등을 수행하는데 많이 사용되고 있는 인공신경망 이론을 적용하여 온도프리스트레싱 공법을 적용한 연속 강합성거더교의 가열구간을 효과적이고 경제적으로 설정하는 기법을 제안하고자 한다. 인공신경망 이론을 학습시키기 위한 학습알고리즘으로는 일반적으로 널리 사용되는 오차역전파 알고리즘을 사용하였으며, 이를 이용하여 2경간 및 3경간 연속 강합성거더교의 가열구간을 예측하고 유한요소해석과의 비교를 통하여 학습알고리즘의 특성 및 예측의 정확도를 분석하였다. The Thermal Prestressing Method for continuous composite girder bridges is a new design and construction method developed to induce initial composite stresses in the concrete slab at negative bending regions. Due to the induced initial stresses, prevention of tensile cracks at the concrete slab, reduction of steel girder section, and reduction of reinforcing bars are possible. Thus, the construction efficiency can be improved and the construction can be made more economical. The method for determining the optimum heating region of the thermal prestressing method has not been established although such method is essential for improving the efficiency of the design process. The trial-and-error method used in previous studies is far from efficient, and a more rational method for computing optimal heating region is required. In this study, an efficient method for determining the optimum heating region in using the thermal prestressing method was developed based on the neural network algorithm, which is widely adopted to pattern recognition, optimization, diagnosis, and estimation problems in various fields. Back-propagation algorithm, commonly used as a learning algorithm in neural network problems, was used for the training of the neural network. Through case studies of two-span and three-span continuous composite girder bridges using the developed procedure, the optimal heating regions were obtained.

A Simple Analytic Method of Optical DFB Waveguides with Quarter-Wavelength Shifted Region

김준환,호광춘,Kim, June-Hwan,Ho, Kwang-Chun The Institute of Electronics and Information Engin 2001 電子工學會論文誌-CI (Computer and Information) Vol.38 No.12

${\lambda}$/4 천이영역을 갖는 평면 DFB 도파로의 광학적특성을 분석하였다. 그 도파로의 필터특성과 공진특성을 정확히 분석하기 위하여 Floquet 이론과 Babinet 원리에 기초한 새로운 모드 전송선로 이론을 유도하였다. 수치해석 결과, 본 논문에서 제시한 해석법은 ${\lambda}$/4 천이영역을 갖는 평면 DFB 도파로의 필터 특성과 공진특성을 간단히 해석할 수 있는 알고리즘을 제공하며, 다른 근사적 해석법들에서 얻을 수 없는 새로운 물리적 특성을 보여 주었다. We evaluate the optical characteristics of planar distributed feedback (DFB) waveguides with quarter-wavelength phase-shifter. To analyze explicitly its band-pass and resonance properties, we present and newly develop a modal transmission-line theory (MTLT) based on Floquet's theorem and Babinet's principle. The numerical results reveal that this approach offers a simple and analytic algorithm to analyze either the filtering or the oscillating characteristic of DFB gratings with quarter-wavelength phase-shifter, and has a novel physical insight that may not be achieved in other approximating approaches

평면 DFB (Distributed-Feedback) 전송구조의 등가 전송선로 해석법

김준환,호광춘,김영권,Kim, June-Hwan,Ho, Kwang-Chun,Kim, Yung-Kwon 한국전기전자학회 1998 전기전자학회논문지 Vol.2 No.1

By using an equivalent network based on Floquet's theorem and bisection principle, the optical properties of planar DFB guiding structure are evaluated. The optical parameters, such as Bragg condition and the reflectivity as a function of grating period, are numerically calculated. The numerical results reveal that this method offers a simple and convenient algorithm to analyze the optical characteristics of DFB configurations. Floquet의 정리와 이등분의 원리 (bisection principle)에 기초한 등가 전송선로 해석법을 이용하여 평면 DFB 구조의 반사특성을 해석하고, 격자주기 (grating petiod)에 따른 분산특성과 전력반사도를 계산하였다. 수치해석 결과 등가 전송선로 해석법은 DFB 전송구조의 광학적 특성을 분석하기 위한 간편하고 유용한 알고리즘으로 사용될 수 있음을 보여 주었다.

항공안전데이터 구조 분석 및 표준 분류체계에 관한 연구

김준환,임재진,이장룡,Kim, Jun Hwan,Lim, Jae Jin,Lee, Jang Ryong 한국항공운항학회 2020 한국항공운항학회지 Vol.28 No.4

In order to enhance the safety of the international aviation industry, the International Civil Aviation Organization has recommended establishing an operational foundation for systematic and integrated collection, storage, analysis and sharing of aviation safety data. Accordingly, the Korea aviation industry also needs to comprehensively manage the safety data which generated and collected by various stakeholders related to aviation safety, and through this, it is necessary to previously identify and remove hazards that may cause accident. For more effective data management and utilization, a standard structure should be established to enable integrated management and sharing of safety data. Therefore, this study aims to propose the framework about how to manage and integrate the aviation safety data for big data-based aviation safety management and shared platform.

舶用主機의 國內製作展望

김준환,Kim, Jun-Hwan 한국마린엔지니어링학회 1978 한국마린엔지니어링학회지 Vol.2 No.1

경험적 벼 작황예측 방법에 대한 소개와 원격탐사를 이용한 예측과의 비교

김준환,이충근,상완규,신평,조현숙,서명철,Kim, Junhwan,Lee, Chung-Kuen,Sang, Wangyu,Shin, Pyeong,Cho, Hyeounsuk,Seo, Myungchul 대한원격탐사학회 2017 大韓遠隔探査學會誌 Vol.33 No.5

본 총설에서는 작황조사 시험을 활용한 통계적 작황예측 방법에 대해 소개하고 이를 원격탐사를 이용한 방법과 비교하였다. 17개 지역에서 이루어지는 작황조사시험 기반으로 작황조사시험의 수량구성요소 중 등숙률을 일사량과 선형회귀식으로 예측하고 면적당 영화수는 작황조사의 실측값을 활용하여 수량을 재구성하는 방법으로 예측 결과를 얻어진다. 예측 결과는 비교적 정확하였는데 지난 2010년부터 2016년까지 가장 적은 오차는 1 kg/10a였으며 가장 큰 편차는 19 kg/10a 이었다. 크게 편차가 발생한 이유는 태풍에 의해 피해 때문이었다. 즉 작황조사를 이용한 통계적 방법은 재해에 의한 공간변이를 충분히 반영하지 못하는 약점이 있다. 반면 원격탐사는 이러한 재해에 의한 공간적 변이를 보다 잘 설명할 수 있는 장점이 있다. 따라서, 벼의 생육상황에 큰 문제가 없는 경우에는 두가지 접근법 모두 유효하고 재해가 발생하였을 때는 원격탐사가 더 정확할 수 있을 것으로 보인다. This review introduces the empirical approach of rice yield forecasting and compares it with remote sensing approach. The empirical approach, was based on the results of the rice growth and yield monitoring experiment in 17 sites, estimated rice yield by recombination of yield components. The number of spikelet per unit area was from results of experiment sites and grain filling rate was estimated from linear regression with sunshine hours. The estimation results were relatively accurate from 2010 to 2016. The smallest error was 1 kg / 10a and the largest error was 19 kg / 10a. The largest error was caused by the typhoon. The empirical approach did not fully reflect the spatial variation caused by disasters such as typhoon or pest. On the other hand, remote sensing could explain spatial variation caused by disasters. Therefore, if there are not any disaster in rice field, both approaches are valid and remote sensing will be more accurate when any local disaster occurs.

주거환경 만족도와 주거선택요소 중요도 변화에 관한 연구 - 서울지역 거주자를 중심으로 -

김준환,최영문,Kim, Joon-Hwan,Choi, Young-Moon 한국주거학회 2008 한국주거학회 논문집 Vol.19 No.3

Recently, Seoul residential real estate market showed a big change, especially in 2007. The residential property price in Seoul had been mainly affected by 5 provideces: Kangnam-gu, Seocho-gu, Songpa-gu, Gangdong-gu and Yangchun-gu, but these providences started to show the decrease in price while the other providences ironically showed the opposite direction. Therefore, this project was derived from this phenomenon recognition and the necessity as the new market trend requires. The pre-research was carried out with the point of social-population academic view, but this project provides the analysis on the new market trend by simplifying the complex valuation indexes, originated from the pre-research. In result, the aspects of the change could be categorized into time-manner classification and territorial-manner classification, in cope with the change in the satisfaction degree on the residential environment and the selection tendency of the residential property. Based on the the moving-preferred area criteria, the territorial classification was categorized into 3 areas: 5 providences, which showed the initial decrease in real estate price (area 1), the other Kangnam area (area 2), and Kangbuk area (area 3). The result illustrated the reasonable change in the satisfaction degree on the residential environment and the selection tendency of the residential property. This project was able to reach the following conclusion : Firstly, the housing development planning should be devised by the residential environment, including the view and the natural environment, not by the area. Secondly, the housing development planning in the other Kangnam area (area 2) and Kangbuk area (area 3) should embrace the business function, not the housing development only. Last, the housing development planning in Kangbuk area (area 3) should be able to enhance education and culture function and be connected by various transportation system. This project analyzes the change in the satisfaction degree on the residential environment and the selection tendency of the residential property. Thereafter, this project has the purpose of providing the aid in understanding of the basis of housing development information.

2015년 쌀풍년 발생 조건에 대한 기상학적 분석

김준환,상완규,신평,조현숙,서명철,Kim, Junhwan,Sang, Wangyu,Shin, Pyeong,Cho, Hyeounsuk,Seo, Myungchul 한국농림기상학회 2017 한국농림기상학회지 Vol.19 No.2

Rice yield of South Korea in 2015 was the highest in last 30 years. The future direction of food policy in South Korea can be determined depending on whether the historically highest yield in 2015 can be continued or just one-off event. Therefore, it is necessary to understand whether such a high yield as 2015 can be reoccurred and how often it can occur. This study used the yield monitoring data from National Institute of Crop Science, Rural Development Administration and the meteorological data provided by Korea Meteorological Administration to identify the weather conditions, which could cause high yield, and how often these conditions occurred in the past. Our results showed that significantly high yield in 2015 could occur only when the mean sunshine hours of July and the mean sunshine hours from the end of August to early September are 5.1 hours and 6 hours, respectively. The probability of satisfying these weather conditions was 8/35 (23%) over the past 35 years. And the probability of successive high yield for two years was 1/35 (2.9%). The probability of recurrence of high yield within the next 5 years or 10 years after high yield was 4/35 (11.4%). 2015년 한국의 쌀 수량은 지난 30년 중 최고치를 보였다. 이러한 수량이 계속 될 수 있는지 아니면 일회성 사건일지에 따라서 앞으로의 식량정책의 방향이 변화될 수 있다. 따라서 본 연구는 2003년부터 2015년까지의 농촌진흥청 국립식량과학원 작황시험 자료와 기상청에서 제공 하는 기상 자료를 이용하여 어떤 기상 조건에서 이러한 높은 수량이 유발될 수 있는지를 결정하고 과거에 얼마나 자주 이러한 조건이 발생했는지를 확인하여 보았다. 본 연구 결과에 따르면 2015 년 수준의 높은 수량은 최소한 7월 평균 일조 시간과 8월 말에서 9월 초 평균 일조 시간이 각각 5.1시간과 6시간 이상인 경우에 발생 가능하였다. 이를 바탕으로 과거 35년간(1981-2015) 이러한 기상 조건을 만족했던 해의 빈도를 계산한 결과 8/35 (23 %)로 비교적 자주 발생하는 사건임을 알 수 있었다. 그리고 2 년간 연속적으로 높은 수량이 발생할 수 있는 기상조건 빈도는 1/35 (2.9 %)이었으며 비교적 희박하게 발생하였다. 2015년 수준의 대풍 가능 기상이 발생한 후 향후 5 년 이내에 다시 그러한 기상이 발생할 가능성은 4/35 (11.4 %)였다. 이러한 대풍가능 기상 조건과 빈도에 대한 접근법을 이용하여 사전에 풍년 가능성에 대한 합리적 접근이 가능할 것으로 생각된다.