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이재중(Jae-Joong Lee),이준상(June-Sang Lee),김미로(Mi-Ro Kim),권혁수(Hyck-Su Kweon),나완수(Wansoo Nah) 대한전기학회 2012 전기학회논문지 Vol.61 No.2
In order to present that the electromagnetic compatibility standards following the frequency goes up which is based automotive electronics, in this paper, a hybrid/electric vehicle battery which reflects the frequency of the equivalent circuit model is introduced. By using this circuit modeling, the impedance characteristics can be analysed and an analyze of battery one cell is finished. Using this model, each different from the discharging situation, the discharge characteristic curve could be led. Basic theoretical approaches and measuring results through MATLAB and experimental validation of the EIS measurement equipment was used.
프로세싱(Processing)언어를 이용한 실시간 아스키 아트 작품구현 연구
이재중(Lee jae-joong),박진완(Park jin-wan) 한국콘텐츠학회 2007 한국콘텐츠학회 종합학술대회 논문집 Vol.5 No.1
현대의 과학기술이 발달되면서 20세기 예술은 회화, 음악, 사진, 연극 등 모든 분야에 걸쳐 새로운 변화를 시도하게 되었다. 이러한 가운데 뉴미디어 아트라는 장르가 생성되게 되었으며, 그것은 기존의 장르를 넘어 비디오아트, 넷아트, 컴퓨터아트, 인터렉션아트 등의 분야로 전개되게 되었다. 기존의 아날로그 작가들은 뉴미디어 아트를 표현함에 있어 프로그래밍을 필요로 하게 되었으며, 쉽게 다가갈 수 있는 프로그래밍 언어가 나오기도 하였다. 하지만, 예술가적 입장에서 프로그래밍이라는 새로운 공학적 사고방식을 받아들이기에 한계는 있었으며, 프로그래밍으로부터 자유롭지 못한 작가들에게는 표현에 있어 적지 않은 제약을 주었다. 본 논문에서는 예술가가 필요로 하는 프로그래밍 요소를 프로세싱(processing)이라는 언어를 통해 실시간 아스키 아트를 구현하게 된다. 기존의 아스키 아트가 단지 문자로 이루어진 2차원적인 정지 이미지였다면, 실시간 아스키 아트는 이미지가 아닌 영상으로 구현함으로써, 미디어가 은폐하고 있는 컴퓨터 코드(code)로서의 정체성을 효율적으로 표현하고자 한다. Late in the 20th century, New technology changed quickly circumstance of the artistic whole. New media art was supported by spread its province and dug into our life on all sides. Development of Media made "Analog Method" of "Digital" and we can't live without computers. The development of digital technology made better new-art than old-art. Interaction remove boundary from a producer to a user. And it made boundary of technology and the art obscurely. And the obscure became a chance that artist demand new things. The artist who works with the artistic feeling had need of technical mind and learning. And it made a chance that developed programing code easier than old code for Processing. This paper is, First, It express the code in digital era through the real time "ascii art" images use processing language. Second, Let audiences recognize the fiction and essence of the information that digital has. Last, Show interaction work which can try to turn back around the essential self who is not a false man of digital.
A Research of Power-Efficient Driving Scheme for Auto-Focus on Image Sensor Module
차상현,박찬우,이연중,황병원,권오조,박득희,권경수,이재신,황신환,Cha, Sang-Hyun,Park, Chan-Woo,Lee, Yuen-Joong,Hwang, Byoung-Won,Kwon, Oh-Jo,Park, Deuk-Hee,Kwon, Kyoung-Soo,Lee, Jae-Shin,Hwang, Shin-Hwan Institute of Control 2009 제어·로봇·시스템학회 논문지 Vol.15 No.12
We present a power-efficient driving scheme that consists of piezoelectric actuator and driver IC for AF (Auto-Focus) on ISM (Image Sensor Module). The piezoelectric actuator is more power-efficient than conventional voice coil motor actuator. And high power-efficiency driver IC is designed. So the proposed driving scheme using designed piezoelectric actuator and driver IC is more close to recent trend of green IT. The diver IC should guarantee fast and accurate performance. So, the optimum driving method and high accurate frequency synthesizer are proposed. The die area of designed driver IC is $2.0{\times}1.6mm^2$ and power consumption is 2.8mW.
외래에서 철 결핍 빈혈로 진단된 남자 환자의 악성 종양 유병률과 연관인자
이병현 ( Byung Hyun Lee ),이재중 ( Jae Joong Lee ),심재겸 ( Jae Kyeom Sim ),김정선 ( Jung Sun Kim ),김대식 ( Dae Sik Kim ),박세종 ( Seh Jong Park ),이세련 ( Se Ryeon Lee ),박용 ( Yong Park ),최철원 ( Chul Won Choi ),김병수 ( Byun 대한내과학회 2014 대한내과학회지 Vol.87 No.1
Background/Aims: Despite several reports on clinical aspects of anemia and malignancy, little is known of male patients with iron-deficiency anemia (IDA) and malignancy in Korea. We examined the cause of anemia, prevalence of and factors associated with malignancy, and treatment response to iron therapy in male IDA patients. Methods: The results of 202 males with IDA seen from March 2008 to June 2013 were analyzed retrospectively. The patients were divided into two groups based on the causes of anemia: the cancer group included patients with anemia caused by malignancy and the non-cancer group included patients with anemia due to other causes. We compared the clinical characteristics and response to iron therapy between the two groups. Results: The most common cause of IDA was bleeding (42.6%). The prevalence of malignancy was 11.9%, with colorectal cancer (58.3%) being the most common. Among the cancer patients (n = 24), 22 patients (91.7%) were age 50 or older. Independent factors associated with malignancy were old age (OR, 1.05; p = 0.026) and a positive stool occult blood test (OR, 7.48; p = 0.001). The treatment response to iron therapy based on a normalized hemoglobin level was lower in the cancer group (OR, 0.49; p = 0.31), but the difference did not reach statistical significance. The treatment response based on the mean hemoglobin level was significantly lower in the cancer group (12.6 ± 2.2 vs. 13.8 ± 1.6 g/dL, p = 0.016). Conclusions: Old age and a positive stool occult blood test were independent risk factors for malignancy in male IDA patients. We recommend screening for malignancy in patients older than 50 years or with a positive stool occult blood test. (Korean J Med 2014;87:53-60)