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.

Analysis of User Experience and Usage Behavior of Consumers Using Artificial Intelligence(AI) Devices

김준환,Kim, Joon-Hwan The Society of Digital Policy and Management 2021 디지털융복합연구 Vol.19 No.6

본 연구는 인공지능(AI) 디바이스가 차세대 정보통신기술(ICT)의 핵심 플랫폼으로 급부상하고 있고, 소비자들의 일상에 널리 적용되고 있는 인공지능 디바이스를 통해 소비자의 사용행태 및 사용자 경험에 대해 살펴보았다. 이를 위해 AI 디바이스 사용 경험이 있는 국내 소비자 600명을 대상으로 AI 디바이스의 속성 인식과 사용행태를 도출하였다. 분석결과는 다음과 같다. 첫째, 다양한 속성 중 음악청취를 가장 많이 이용하였고, 날씨 정보제공과 같은 단순한 기능을 유용하게 인식하는 것으로 나타났다. 둘째, AI 디바이스 사용자의 주요 사용기기는 AI 스피커, 스마트폰, PC, 노트북 등으로 확인되었다. 셋째, AI 디바이스에 대한 연상 이미지는 재미있는, 유용한, 신기한, 똑똑한, 혁신적인, 친근한 순으로 나타났다. 따라서 본 연구는 AI 디바이스의 특성을 반영한 사용 행태를 분석함으로써 향후 AI 디바이스를 활용한 사용자의 서비스 제공에 기여할 수 있다는 실무적 시사점을 갖는다. Artificial intelligence (AI) devices are rapidly emerging as a core platform of next-generation information and communication technology (ICT), this study investigated consumer usage behavior and user experience through AI devices that are widely applied to consumers' daily lives. To this end, data was collected from 600 consumers with experience in using AI devices were derived to recognize the attributes and behavior of AI devices. The analysis results are as follows. First, music listening was the most used among various attributes and it was found that simple functions such as providing weather information were usefully recognized. Second, the main devices used by AI device users were identified as AI speakers, smartphone, PC and laptops. Third, associative images of AI devices appeared in the order of fun, useful, novel, smart, innovative, and friendly. Therefore, practical implications are suggested to contribute to provision of user services using AI devices in the future by analyzing usage behaviors that reflect the characteristics of AI devices.

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

수용성 유리를 이용한 조류 생장 억제형 기능성 모르타르의 개발

김준환,강호정,최세영,임윤묵,Kim, Jun Hwan,Kang, Hojeong,Choi, Se Young,Lim, Yun Mook 대한토목학회 2015 대한토목학회논문집 Vol.35 No.4

본 연구는 수중 구조물의 수명과 조류의 성장이 관계가 있다는 연구결과에 근거하여 조류의 이상증식 억제가 구조물에 영향을 미칠 수 있다는 것에 초점을 맞추었다. 따라서 본 연구는 조류의 활용을 극대화시키면서 조류로 인한 문제점을 억제할 수 있도록 조류의 생장을 억제할 수 있는 기능성 모르타르 개발을 목적으로 하였다. 조류의 생장을 억제하기 위한 방법으로 금속 ion(Hg+, Ag+, Cu2+, Au+ 등)은 조류의 생장을 억제하는 물질로 오래전부터 사용되어져왔다. 이에 착안하여 수중에 용출되었을 때 유효한 금속 ion의 상태로 장시간에 걸쳐 안정한 수용성 유리를 사용하여 조류의 생장을 억제할 수 있는 기능성 모르타르 시편을 제작하였다. 제작된 모르타르 시편은 시편의 억제 기능성을 평가하기 위해 해수와 담수에 생장하는 일반적인 조류를 배양시킬 수 있는 배지를 각각 제작한 다음 개발된 모르타르 시편을 투입한 후 일정기간이 지난 뒤 배지에 잔류하는 조류의 양을 측정함으로써 개발된 모르타르 기능성을 판단하였다. 조류의 양을 측정하기 위하여 사용된 분석은 용존 유기탄소(dissolved organic carbon)의 양과 엽록소(chlorophyll)의 양을 측정하는 두 가지 분석 결과를 이용하였으며 분석을 통해 나온 결과는 개발된 시편의 조류 억제 기능성에 대하여 정성적인 평가를 하였다. 즉, 용존 유기탄소의 양이 증가하고 엽록소의 양이 감소하면 조류에 대한 생장 억제성이 있는 것으로 판단하였다. 두 가지 분석 결과, 해수와 담수 모두 조류 생장 억제용 모르타르는 억제 기능성이 나타나고 있었다. This study focuses on the algae growth restraining. Many researches on a critical damage from algae growth are published, but it is hard to find how th restrain. Abnormal algae increasing is a problem, because it makes red tides, biodeterioration, etc. Therefore this study aims to decrease the damage from algae growth. Some metal ions have been used microorganism killing materials from old times. Especially, Cu ions are highly effective. Based on these uses of the metal ions, a functional mortar which restrains algae growth is developed. The mortar contains soluble glass which dissolve in water. The soluble glass was made of Cu ions and phosphates. When the soluble glass is dissolved, Cu ions are soaked out stably from the soluble glass. Culture mediums which incubate algae were made to evaluate the developed mortar specimens. Culture mediums were filled with fresh water and sea water. Algae were incubated for fourteen days in culture mediums. The evaluating methods are measuring volume of the dissolved organic carbon and the chlorophyll. Using these two measurements, the mortar specimens are judged that can restrain algae or not. According to the result, the functional mortars of culture medium filled with fresh and sea water shows similar trend. The functional mortar for restraining algae growth performs that's role well.

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.

Entrainment of Geldart C particles in fluidized beds with binary particles

김준환,이동현,배종욱,남재욱,Sang Done Kim,최정후 한국화학공학회 2014 Korean Journal of Chemical Engineering Vol.31 No.11

The effects were determined of the mass ratio of Geldart C particles on the total amount of particles (M /M =0-50wt%), superficial gas velocity (U =0.5-1.0 m/s) and coarse particle size distribution (mono, binary, flat,and Gaussian type) on entrainment of Geldart C particles in a bubbling fluidized bed with binary particles (coarse par-ticles: d =0.512 mm, ρ =2,339 kg/m3and Geldart C particles: d =13 µm, ρ =4,455 kg/m3). The initial entrainment rateincreases with increasing U . At U of 0.5 and 0.7 m/s, the initial entrainment rate slightly increases initially and thenremains almost constant with increasing mass ratio (M /M ). At higher gas U of 0.85 and 1.0 m/s, the initial en-trainment rate increases with increasing the mass ratio (M /M ) up to 30 wt%, after which the increasing slope ofthe initial entrainment rate decreases with increasing the mass ratio (M /M ). Also, the decrease in the coefficient ofentrainment rate is equal to the increase in (M /M ) at the corresponding U . The average particle size of the entrainedparticles is about 12-16 µm at U of 0.5-1.0 m/s.

링 인장시험을 이용한 지르코늄 피복관의 반응도 사고(RIA) 시 연성 평가

김준환,이명호,최병권,방제건,정용환,Kim Jun Hwan,Lee Myoung Ho,Choi Byoung Kwon,Bang Je Geon,Jeong Yong Hwan 한국재료학회 2005 한국재료학회지 Vol.15 No.2

Mechanical properties of zirconium cladding were evaluated by ring tension test to simulate Reactivity-Initiated Accident (RIA) at high burnup situation as an out-reactor test. Zircaloy-4 cladding was hydrided up to 1000 ppm as well as oxidized up to $100\;{\mu}m$ to simulate high-burnup situation. After simulated high-burnup treatment, ring tension test was carried out from 0.01 to 1/sec to correlate with actual RIA event. The results showed that ductility and circumferential toughness decreased with the hydrogen content and oxide thickness. Hydride generated inside cladding acted as brittle failure. Oxygen influenced cladding tube by the reduction of load bearing area, oxygen embrittlement, and thermal aging. Correlation between in-reactor RIA parameter like fuel enthalpy and out-reactor toughness was performed and showed a reasonable result.

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.