전도된 묵시문학으로서의 「하늘의 다리」

김진규 ( Kim Jin-gyu ) 민족문학사학회·민족문학사연구소 2018 민족문학사연구 Vol.67 No.-

This paper attempted to clarify three facts by reading the “Leg on the Sky” as an inverted apocalyptic literature. First, Joon-goo’s drawing ‘leg on the sky’ is a process of revealing the meaning of the sufferings of Kim Joon-gu and Han Dong-soon family, and furthermore, the culture that gives meaning to the life and death of Korean. Second, Kim’s experiences in the text are extended to that of the whole of Korean, but such representation lose their legitimacy due to Joon-goo’s onlooker’s attitude toward the current social reality such as ‘murder case of Jung In-suk’ and ‘the Collapse of the Wawoo Apartment Complex building.’ Third, “Leg on the Sky” redefines Kim Joon-goo as a “criminal,” thereby providing a basis for criticizing and overcoming the distance between Kim Joon-goo and contemporary reality. Kim Joon-goo sees himself as a “criminal” in the murder case of Jung In-suk and the Collapse of the Wawoo Apartment Complex building. This guilt is primarily about compliance with the ruling system, and ultimately about the subjectcentrism, which privileges only his suffering and salvation. Kim Joon-goo can overcome his despair and fear when he takes on the suffering of the others based on his experience of refugee.

인공지능 프로세서 컴파일러 개발 동향

김진규,김혜지,조용철,김현미,여준기,한진호,권영수,Kim, J.K.,Kim, H.J.,Cho, Y.C.P.,Kim, H.M.,Lyuh, C.G.,Han, J.,Kwon, Y. 한국전자통신연구원 2021 전자통신동향분석 Vol.36 No.2

The rapid growth of deep-learning applications has invoked the R&D of artificial intelligence (AI) processors. A dedicated software framework such as a compiler and runtime APIs is required to achieve maximum processor performance. There are various compilers and frameworks for AI training and inference. In this study, we present the features and characteristics of AI compilers, training frameworks, and inference engines. In addition, we focus on the internals of compiler frameworks, which are based on either basic linear algebra subprograms or intermediate representation. For an in-depth insight, we present the compiler infrastructure, internal components, and operation flow of ETRI's "AI-Ware." The software framework's significant role is evidenced from the optimized neural processing unit code produced by the compiler after various optimization passes, such as scheduling, architecture-considering optimization, schedule selection, and power optimization. We conclude the study with thoughts about the future of state-of-the-art AI compilers.

The Seventeen Plane Groups (Two-dimensional Space Groups)

김진규,김윤중,김영상,고재중,강상욱,한원식,서일환,Kim Jin-Gyu,Kim Youn-Joong,Kim Young-Sang,Ko Jaejung,Kang Sang Ook,Han Won-Sik,Suh Il-Hwan 한국결정학회 2005 韓國結晶學會誌 Vol.16 No.1

Six basic symmetries and five Bravais lattices existing in the two-dimensional lattice are derived and then ten two-dimensional point groups are classified by each of five Bravais lattices. Finally seventeen two-dimensional space groups belonging to the ten point groups are studied.

투과전자현미경을 이용한 $SmZn_{0.67}Sb_2$의 3차원적 구조 분석

김진규,강성권,김완철,김윤중,Kim, Jin-Gyu,Kang, Sung-Kwon,Kim, Wan-Cheol,Kim, Youn-Joong 한국현미경학회 2004 Applied microscopy Vol.34 No.4

The three-dimensional (3D) structure of an inorganic crystal, $SmZn_{0.67}Sb_2$ (space group P4/nmm, $a=4.26{\AA}\;and\;c=10.37{\AA}$) was solved by electron crystallography. High resolution electron microscopy (HREM) images from 3 different major zone axes and selected-area electron diffraction patterns from 16 different zone axes were combined to obtain a 3D information. A crystallographic image processing (CIP) of HREM images was used for more accurate determination of the crystal structure. As a result of this electron crystallography, average phase errors (${\Phi}_{res}$) of [001], [100] and [110] HREM images are $17.0^{\circ},\;8.3^{\circ}\;and\;21.9^{\circ}$, respectively. Xray crystallography of $SmZn_{0.67}Sb_2$ has attempted to compare accuracy of the structure determination by electron crystallography, which resulted in the cell parameters of $a=4.2976(6){\AA}\;and\;c=10.287(2){\AA}$, and the R-factor ($R_{sym}$) of 4.16%.

3차원적 구조분석을 위한 TEM Rotation Holder의 신뢰도 점검

김진규,정종만,김영민,김윤중,Kim, Jin-Gyu,Jeong, Jong-Man,Kim, Young-Min,Kim, Youn-Joong 한국현미경학회 2006 Applied microscopy Vol.36 No.3

투과전자현미경을 이용한 3차원적 구조분석의 신뢰도를 향상시키기 위해서는 고니오미터와 사용되는 시료 홀더에 대한 정확도와 정밀도의 측정 및 보정이 필요하다. 본 연구에서는 상업용 투과전자현미경 홀더 중의 하나인 rotation holder에 대한 작동원리를 기술하고 회전각의 정확도를 측정하였다. 투과전자현미경 내부에서 회전된 이미지의 분석을 통한 홀더의 회전각의 측정오차는 ${\pm}0.42^{\circ}$이었다. 회전각의 정확도를 비교하기 위해 투과전자 현미경 외부에서 시료 홀더에 부착된 반사경에 레이저 빔을 반사시켜 측정한 결과, 회전각의 측정오차는 ${\pm}0.6^{\circ}$이었다. 추가적으로 시료컵과 회전벨트 사이의 불안정한 맞물림에 의해 야기된 비정상적인 시료의 회전경로에 대해서도 점검하였다.

CCD 카메라를 이용한 전자빔 조사량의 예측

김진규,김영민,김윤중,이상희,홍기민,오상호,Kim, Jin-Gyu,Kim, Young-Min,Kim, Youn-Joong,Lee, Sang-Hee,Hong, Ki-Min,Oh, Sang-Ho 한국현미경학회 2009 Applied microscopy Vol.39 No.1

We report a useful method to estimate the electron dose rate which may be a decisive factor to characterize sample properties. Even though most mircoscopes have their own exposure meters, there are several practical concerns when such exposure meters are used to measure the electron dose rate: 1) Specimen should be avoided within the entire area of exposure meter; 2) beam current has to be always recorded whenever the operation mode is changed; 3) the electron dose rate can not be calculated for the beam current beyond the detectable range. To overcome these limitations, we suggest a useful method which utilize a CCD (charge coupled device) camera which is now a popular detector to obtain the final electron micrographs. We have evaluated the CCD sensitivity using the linear relationship between electron current on the exposure meter and counter ratio on the CCD camera which are built in KBSI-HVEM (high voltage electron microscope). Applying the new method, we obtained the CCD sensitivity which are approximately 0.039 counts/$e^-$ and 1.37 counts/$e^-$ for the Top-TV and the HV-GIF CCD cameras, respectively.

방사선지표식물 자주달개비를 이용한 환경방사선 감시

김진규,김원록,이영근,김재성,송희섭,정철영,김기남,서원선,홍광표 ( Jin Kyu Kim,Won Rok Kim,Young Keun Lee,Jae Sung Kim,Hi Sup Song,Cheorl Young Jeong,Ki Nam Kim,One Sun Suh,Kwang Phyo Hong ) 한국환경생물학회 1998 환경생물 : 환경생물학회지 Vol.16 No.2

Tradescantia in BNL 4430 is a hybrid clone heterozygous for its flower color and extremely sensitive to ionizing radiation. Such a fact made people around nuclear power plants be interested in Tradescantia, a botanical tester of radiation effects. The pur pose of this study is to provide the botanical supplement to physical radiation monitor systems and also to ascertain biological safety regarding environmental radiation around nuclear power plants. Flowers collected periodically from three Tradescantia gardens (in Youngkwang NPP Jeonsigwan. City office and KAERI. respectively) were scored for pink mutation frequencies in stamen hair cells. Pink mutation frequencies in the study area were in the range of 0.82∼1.14. which were slightly lower than the annual mean background mutation frequency of 1.16. Statistical analysis of scoring data showed that there was no significant difference between three Tradescantia gardens (p>0.05). From the result, the environmental radiation level around Youngkwang nuclear power plant can be said biologically safe. Further study for verifying safety will make a role for improving public acceptance related to the peaceful use of nuclear power.

$LiK_{1-x}Rb_{x}SO_{4}(x=0.1,\;0.2)$의 결정구조 분석

김진규,김윤중,김해진,서일환,Kim, Jin-Gyu,Kim, Youn-Joong,Kim, Hae-Jin,Suh, Il-Hwan 한국결정학회 2005 韓國結晶學會誌 Vol.16 No.2

[ $LiK_{1-x}Rb_{x}SO_{4}(x=0.1,\;0.2)$ ]의 결정을 313K에서 수용액법으로 성장시켰다. 결정구조는 X-ray 회절법을 이용하여 동일한 공간군 $P6_{3}(#173)$에서 수행되었다. 동일한 대칭성을 가진 두 화합물은 각각 3회 회전축에 위치하고 있는 Li과 $SO_{4}^{2-}$ 이온들이 서로 무한히 연결된 3차원적 그물구조를 형성하고 있고, 6회 회전축에 위치하고 있는 K와 Rb원자들은 각각 12개와 15개의 O 원자들과 배위를 이루고 있다. K와 Rb의 점유도는(0.91 : 0.09), (0.77 : 0.23)으로 정밀화 하였을 때 가장 안정된 상태에 도달하였다. [ $LiK_{1-x}Rb_{x}SO_{4}(x=0.1,\;0.2)$ ] crystals were grown by means of aqueous solution growth technique at 313 K. Structure analysis of them was carried out with space group $P6_{3}(#173)$ by X-ray diffraction. In these compounds, the Li and $SO_{4}^{2-}$ ions lying on the three-fold axes formed infinite three-dimensional network and K and Rb atoms located on the six-fold axes are coordinated by twelve and fifteen O atoms respectively. The most suitable stabilization was achieved when the occupancy factors of K and Rb atoms are (0.91 : 0.09), (0.77 : 0.23) respectively.

상(이미지)/회절도형 형성의 광학적 원리를 이해하기 위한 실험장치 제작

김진규,정종만,김문창,최주형,김윤중,Kim, Jin-Gyu,Jeong, Jong-Man,Kim, Mun-Chang,Choi, Joo-Hyoung,Kim, Youn-Joong 한국현미경학회 2007 Applied microscopy Vol.37 No.3

We have made an optical device to study the wave optics phenomena, such as image and diffraction pattern, constructive and destructive interference, by direct operation of laser beam and optical lenses. It consists of laser beam, goniometer, objective lens, intermediate lens, projection lens, CCD system, and computing system. As a result of the performance test, we were able to magnify samples up to 44 times with the resolution of about $5{\mu}m$. It is expected to help EM users understanding more easily principles of transmission electron microscopy (TEM).

가변 길이 정보 메시지 최적화 방법

김진규,강성원,정필수,김정민,백하은,권구형,김상수,Kim, Jingyu,Kang, Sungwon,Jung, Pilsu,Kim, Jungmin,Baek, Haeun,Kwon, Koo Hyung,Kim, Sang Soo 한국정보과학회 소프트웨어공학 소사이어티 2013 소프트웨어공학회지 Vol.26 No.1

가변 길이 정보 메시지는 컴퓨터 네트워크 시스템을 통하여 효율적인 정보 제공을 하기 위하여 개발된 통신 프로토콜 표준이다. 이러한 가변 길이 정보 메시지는 정보 수신자의 정보 요구 수준 및 정보 수신자의 정보 접근 수준에 따라 정보의 상세함을 가변적으로 조절 할 수 있도록 설계된 메시지이다. 정보 메시지 최적화 기술은 정보 메시지를 다양한 데이터 압축 기술을 사용하여, 메시지 전체의 물리적인 사이즈를 줄이려고 노력하였다. 정보 메시지 최적화에서는 정보의 정확성을 최우선으로 고려하고 있어, 최적화 전/후가 동일한 비손실 압축 기법을 응용하여 사용하고 있다. 하지만, 이러한 비손실 압축 기법만을 사용하면, 압축효율성이 현저하게 떨어져, 제한된 대역폭을 갖는 무선 네트워크 환경에서의 효율적인 전송이 이루어지지 않는다. 본 논문에서는 가변 길이 정보 메시지를 대상으로, 메시지 필드 단위로 정보의 최적화를 수행하여 메시지의 길이를 물리적으로 좀 더 효과적으로 최적화하도록 시도하였다. 또한, 본 논문에서 제시한 최적화 방법의 효율성을 보이기 위하여, 가변 길이 정보 메시지에 대한 최적화 실험을 수행하였다. Variable length information message is a communication protocol standard in order for computer network systems to provide efficient delivery of information. The variable length information messages were developed for varying and controlling details of information in accordance with message receiver's required information level or information access level. In the previous studies, data compressing techniques have been in use for information message optimization technologies in order to reduce physical sizes of information messages. In optimization technologies for information messages, accuracy of information is considered as the most important factor; therefore, only non-loss compression techniques are applied to the optimization technologies. However, the non-loss compression based information message optimization methods are not efficient in data compression, and these are limited to efficient delivery of information in wireless network environments that have constraint bandwidth. In this paper, we attempt to optimize information in the variable length information messages at message fields in order to reduce physical sizes of messages more efficiently. To demonstrate the efficiency of our approach, we conduct optimization experiments for variable length information messages.