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김경훈 한국비쥬얼디자인학회 1999 한국디자인포럼 Vol.4 No.-
In the 21st century knowledge-and-information-oriented age, individual diversity is emphasized, and information acquisition and consumption levels are heightened. This trend of the times refuses to accept the mass production system centering around the competition in price. In consequence, inevitably does come the age of value created in which quality goods are produced by the multikind and small quantitiy production system. Design along with information and communication as 21st century knowledge-based business is gaining ground as a main factor national competitiveness is dependent upon in this age. Accordingly, the purpose of this study is to analyze the process and realities of the establishment of a firm specialized in venture design, both one of knowledge-based business and one factor which decides whether in the knowledge-and-information-oriented age, the millennium, our country will gain ground as one of the leading countries in the world or it will set in the west just like the twilight of the 20th century, and try to pave the way to promote the establishment of design venture required by this age. In a knowledge-based economic society, working methods are more important than working hours, and technical knowledge is more important than general knowledge. Desire for self-achievement is to be stronger than unilateral sense of loyalty to an organization. For the country in which there are many men of great originality who can enhance value added through incessant self-improvement, self-development and self -reformation can secure competitiveness among nations in the upcoming century.
김경훈,임성빈 대한수학회 2016 대한수학회지 Vol.53 No.4
Let $p(t,x)$ be the fundamental solution to the problem $$ \partial_{t}^{\alpha}u=-(-\Delta)^{\beta}u, \quad \alpha\in (0,2), \, \beta\in (0,\infty). $$ If $\alpha,\beta\in (0,1)$, then the kernel $p(t,x)$ becomes the transition density of a L\'evy process delayed by an inverse subordinator. In this paper we provide the asymptotic behaviors and sharp upper bounds of $p(t,x)$ and its space and time fractional derivatives $$ D_{x}^{n}(-\Delta_x)^{\gamma}D_{t}^{\sigma}I_{t}^{\delta}p(t,x), \quad \forall\,\, n\in\mathbb{Z}_{+}, \,\, \gamma\in[0,\beta],\,\, \sigma, \delta \in[0,\infty), $$ where $D_{x}^n$ is a partial derivative of order $n$ with respect to $x$, $(-\Delta_x)^{\gamma}$ is a fractional Laplace operator and $D_{t}^{\sigma}$ and $I_{t}^{\delta}$ are Riemann-Liouville fractional derivative and integral respectively.
공연예술연습공간으로 리모델링된 청주 연초제조창 동부창고의 음향특성
김경훈,김재수 한국문화공간건축학회 2016 한국문화공간건축학회논문집 Vol.- No.54
Aged idle public facilities have recently been neglected, empty, in urban areas, causing social problems. So the central and local governments have tried to remodel such spaces into performing arts practice spaces with the objective of improving local culture and arts and forming cultural communities. However, lack of data concerning changes and improvement in acoustic performance after remodeling is causing lots of difficulty at the stages of design and construction. From this perspective, this study aimed to assess post-remodeling changes of space elements and finished materials and improvement in acoustic performance of the East Warehouse in Cheongju Tobacco Center recently remodeled into a performing arts space. The reverberation time at 500Hz before remodeling was 3.5 seconds, causing acoustic defects due to excessive reverberation. Then, the improvement in absorption power and room constant with the changes of the space elements and finished materials at the stage of remodeling led to a significant decrease in reverberation time after remodeling: 1.13 seconds for the main practice room and 0.21-0.3 second for the remaining three spaces. Therefore, acoustic performance appropriate for multi-purpose space to hold performances, lectures, and diverse events was secured for the main practice room after remodeling: SPL (dB(A)) 76.5 dB(A), SPL at 500Hz 66.7 dB, D50 51.7%, C80 3dB, and RASTI 60.8% (“Good”). The remaining three spaces were also remodeled into performing arts practice spaces appropriate for practicing speech and movements for plays or dances: SPL (dB(A)) 81.6-83.7 dB(A), SPL at 500Hz 69.4-72.1 dB, D50 93.3-97.4%, and RASTI 80-86% (“Excellent”). It was therefore possible to remodel the east warehouse of the Cheongju Tobacco Center, which had been neglected, into a multi-purpose space and performing arts practice space and provide local residents and cultural groups with a cultural space appropriate for performance and practice for diverse genres.
Lq(Lp)-THEORY OF PARABOLIC PDEs WITH VARIABLE COEFFICIENTS
김경훈 대한수학회 2008 대한수학회보 Vol.45 No.1
Second-order parabolic equations with variable coecientsare considered on Rd and C¹ domains. Existence and uniqueness resultsare given in Lq(Lp)-spaces, where it is allowed for the powers of summa-bility with respect to space and time variables to be dierent.
김경훈 만주학회 2015 만주연구 Vol.- No.19
Through the comparative study of Li Xu’s poems before and after liberation, it is not hard to find that the works in the early stage before liberation uses more pure and direct expression. We can find that there are larger continental traits in it. From the aspect of imagination comparing with the later poets, his poems have a wider perspective and a deeper space and theme. Compared with “Zhizhuhua” such works, have a wider field of vision. The themes that the poets want to emphasize can be expressed in new ways. Of course, after that the achievements of poetry change as the strengthening of Japanese fascists varies. Many writers drift, there have been some pro-Japanese works, and was partially damaged. Works before the liberation, under the changes of the era, first, the body consciousness like <national honor name> have a deep understanding on the concept of nation or country. After the establishment of People’s Republic of China, during the “Great Leap Forward” and many other modifications has modified such understandings and also modified the manifestation of reminiscence. After that poems have gone through great changes of the times, creation returns to the family and people’s subtle emotional world. As one of the representatives of Chinese-Korean poet Li Xu, His works before and after the liberation is the development of history and embellishment of the Korean nationality of. Therefore, for the internal and deep forms of works, both the poet's life and social background can influence its objectivity and systematicness which can not only change the literary history of Korean poetry but also have considerable value on the later research development. 리욱(李旭, 1907~1984)의 해방전후 시창작의 변화상을 비교한 결과, 해방 전의 작품에서는 초기의 단순하고 직설적인 표현 속에서도 스케일이 큰 대륙적인 기질을 엿보이는 시적 상상력이 이후의 시인의 창작에서 보다 폭이 넓은 시적 공간과 주제의 깊이를 가능케 하였다고 보았고 이는 <躑躅花>와 같은 작품에 이르러 보다 구체적인 시어로 풍성해지면서 시인이 강조하고자 하는 주제를 한결 형상적인 새로운 언어들로 전해주고 있는 데서 나타났다. 물론 이러한 시적인 성취도는 그후 일제의 파시즘이 강화되면서 많은 문인들이 그러했던 것처럼 친일적인 작품들이 나오기도 하여 아쉬운 점을 보이기도 하였다. 다음 해방 후의 창작을 살펴볼 때, 격변의 시대적인 상황에서 우선 주제의식에서 <民族이 가진 榮譽로운 이름>과 같은 작품들에서 민족이나 국가에 대한 관념에서 혼란된 인식을 보이고 있었다. 그후 중화인민공화국이 성립되고 “대약진운동” 등 많은 운동 속에서 그러한 인식이 정돈되고 수정이 되었다. 또 낡은 표현방식도 대폭 수정되었고 그 이후 격변하는 혁명의 시대를 지나 가정적이고 미세한 인간의 정의 세계로 회귀했음을 보여주기도 하였다. 조선족의 대표시인 중 한 사람으로서의 리욱의 해방 전과 해방 후의 시 창작은 그대로 조선족 시문학의 역사적인 흐름과 점철되어 있다. 따라서 시인의 생애와 사회적인 배경은 물론, 작품에 내재하는 심층적인 층위의 여러 가지 양상들에 대해 보다 객관적이고도 체계적이며 깊이 있는 논의는 조선족 시문학의 역사적인 변모뿐만 아니라 이후의 발전 가능성에 대한 연구에서도 자못 의미 있는 작업임에 분명하다.