촉탁의의 보험건강진단 실태와 그 개선을 위한 제언

임영훈,Im, Young-Hoon 한국생명보험의학회 1996 保險醫學會誌 Vol.15 No.-

4차 산업혁명 대응 주요국 농업과학기술 정책동향

임영훈 한국농촌경제연구원 2017 세계농업 Vol.201 No.-

단치지수(丹治指數)의 보험의학적(保險醫學的) 고찰(考察)

임영훈,Im, Young-Hoon 한국생명보험의학회 1984 保險醫學會誌 Vol.1 No.1

생명보험가입자의 사망양상에 관한 연구 제3보 진단보험 가입자의 사망양상

임영훈,Im, Young-Hoon 한국생명보험의학회 1990 保險醫學會誌 Vol.9 No.-

Li$_{2}$B$_{4}$O$_{7}$-ZnO 합성유리의 이온 전도도 및 완화 동역학

임영훈,김맥,양용석 한국물리학회 2016 새물리 Vol.66 No.1

We have investigated the ionic conductivity and relaxation dynamics in Li$_{2}$B$_{4}$O$_{7}$ (LBO) and 0.9Li$_{2}$B$_{4}$O$_{7}$-0.1ZnO (LBZO) glasses. The samples were synthesized by using the melt quenching method. The impedance measurements were carried out in the frequency range from 100 Hz to 30 MHz and in the temperature range of 30 $\sim$ 700 $^\circ$C at a heating rate of 2 $^\circ$C/min. The proper relation between the exponents of the Cole-Cole representation and the stretched exponential of the modulus is characterized. The $dc$ activation energies of the LBO and the LBZO glasses were 0.70 eV and 0.75 eV, respectively, and the $ac$ activation energies were 0.66 eV and 0.71 eV, which were obtained from fits of the complex impedance Cole-Cole curves. The $ac$ activation energies obtained from the modulus representation were in good agreement with the values obtained from the Cole-Cole representation. The $dc$ conductivity was lower for the compound of ZnO in LBO glass. The activation energies of the average electric relaxation time and the dc conductivity obtained by using a complex modulus analysis showed that the LBO and the LBZO glasses satisfied the Barton, Nakajima, Namikawa (BNN) relation. Li$_{2}$B$_{4}$O$_{7}$(LBO)유리와 0.9Li$_{2}$B$_{4}$O$_{7}$-0.1ZnO (LBZO) 유리의 이온전도도와 완화 동역학을 연구하였다. 유리시료는 용융된 재료를 급랭하여 제조하였다. 임피던스는 주파수 100 Hz $\sim$ 30 MHz, 온도 30 $\sim$ 700 $^\circ$C 범위에서 승온율 2 $^\circ$C/min으로 측정하였다. Cole-Cole 표현법과 모듈러스 표현법에 사용된 지수들의 관계를 비교 분석하였다. Cole-Cole 표현법으로 얻어진 LBO 유리와 LBZO 유리의 $dc$ 활성화 에너지는 각각 0.70 eV, 0.75 eV이며, $ac$ 활성화 에너지는 0.66 eV, 0.71 eV 이었다. 복소 모듈러스 표현식으로부터 얻어진 $ac$ 활성화 에너지는 Cole-Cole 표현법으로 얻어진 값들과 일치하였다. LBO 유리에 ZnO를 합성한 결과 $dc$ 전기전도도가 줄어든다. 모듈러스 해석에 적용한 평균 전기 완화시간 및 직류 전기전도도의 활성화 에너지들로부터, LBO 유리계 및 LBZO 유리계는 각각 Barton, Nakajima, Namikawa (BNN) 관계식을 만족함을 보였다.

피보험체계측치(被保險體計測値)의 평가(評價)에 관한 연구(硏究) 제2보(第2報) 심흉비(心胸比)

임영훈,Im, Young-Hoon 한국생명보험의학회 1986 保險醫學會誌 Vol.3 No.1

A study on establishment of normal range of cardiothoracic ratio calculated from photofluorography film of chest by age and sex in a total of the 6,598 insureds was undertaken. The results were as follows: 1. In male group, the frequency distribution of cardiothoracic ratio was skewed weakly to the right in second decade, symmetrical in third and fourth decade, and was skewed weakly to the left in fifth and sixth decade; in female group, it was skewed weakly to the left in second, third and fourth decade, and was skewed weakly to the right in fifth and sixth decade. 2. On assumption that normal range of cardiothoracic ratio should comprise about 85% of all cardiothoracic ratios in each age group of both sexes, the sites of deviation from mean value of cardiothoracic ratio corresponding to maximum and minimum cardiothoracic ratio in the range of about 85% above mentioned were detected by statistical method on the frequency distribution of log tranformed cardiothoracic ratio, and $M{\pm}1.3$ sindicating normal range of cardiothoracic ratio was determined. In male group, normal range of cardiothoracic ratio determined by statistical method is 35-45%, 40-50%, 40-50%, 40-50% and 40-50% succesively in order from second to sixth decade; in female group, 40-50%, 40-50%, 40-50%, 45-55% and 45-55%.

피보험체계측치(被保險體計測値)의 평가(評價)에 관한 연구(硏究) 제3보(第3報) 한국성인(韓國成人)의 표준체중(標準休重) 산출(算出)을 위한 변형(變形)Broca지수(指數)에 관한 연구(硏究)

임영훈,Im, Young-Hoon 한국생명보험의학회 1987 保險醫學會誌 Vol.4 No.1

Present study was undertaken to establish the modified Broca's indices to estimate standard body weight by using a total of 5,496 insured persons who were medically examined at the Honam Medical Room of Dong Bang Life Insurance Company Ltd. from January, 1983 to January, 1986. The results were as follows: 1. The linear regression equations of body weight to $height^3$ to estimate standard body weight were as follows: In male, for $18{\sim}19$ age group $y=7.272{\times}10^{-6}{\times}x^3+23.560$ for $20{\sim}29$ age group $y=8.187{\times}10^{-6}{\times}x^3+22.031$ for $30{\sim}39$ age group $y=8.627{\times}10^{-6}{\times}x^3+23.169$ for $40{\sim}49$ age group $y=9.561{\times}10^{-6}{\times}x^3+20.994$ for $50{\sim}59$ age group $y=8.604{\times}10^{-6}{\times}x^3+23.081$ and for all ages group $y=7.778{\times}10^{-6}{\times}x^3+25.929$ In female, for $18{\sim}19$ age group $y=8.252{\times}10^{-6}{\times}x^3+18.920$ for $20{\sim}29$ age group $y=7.715{\times}10^{-6}{\times}x^3+22.409$ for $30{\sim}39$ age group $y=8.808{\times}10^{-6}{\times}x^3+21.440$ for $40{\sim}49$ age group $y=9.691{\times}10^{-6}{\times}x^3+21.940$ for $50{\sim}59$ age group $y=12.550{\times}10^{-6}{\times}x^3+11.031$ and for all ages group $y=7.300{\times}10^{-6}{\times}x^3+26.601$ In both sexes, for all ages group $y=8.342{\times}10^{-6}{\times}x^3+22.998$ 2. The modified Broca's index is expressed by formula $\{height(cm)-100\}{\times}K(kg)$. K is obtained from the following formula standard weight to average height estimated $\frac{by\;means\;of\;linear\;regression\;equation(kg)}{\{Average\;height(cm)-100\}{\times}K(kg)}$=1 Author's modified Broca's indices are as follows: In male, for $18{\sim}19$ age group $\{height(cm)-100\}{\times}0.85(kg)$ for $20{\sim}29$ age group $\{height(cm)-100\}{\times}0.90(kg)$ for $30{\sim}39$ age group $\{height(cm)-100\}{\times}0.95(kg)$ for $40{\sim}49$ age group $\{height(cm)-100\}{\times}1.00(kg)$ for $50{\sim}59$ age group $\{height(cm)-100\}{\times}0.95(kg)$ and for all ages group $\{height(cm)-100\}{\times}0.95(kg)$ In female, for $18{\sim}19$ age group $\{height(cm)-100\}{\times}0.90(kg)$ for $20{\sim}29$ age group $\{height(cm)-100\}{\times}0.90(kg)$ for $30{\sim}39$ age group $\{height(cm)-100\}{\times}1.00(kg)$ for $40{\sim}49$ age group $\{height(cm)-100\}{\times}1.05(kg)$ for $50{\sim}59$ age group $\{height(cm)-100\}{\times}1.05(kg)$ and for all ages group $\{height(cm)-100\}{\times}1.00(kg)$ In both sexes, for all age group $\{height(cm)-100\}{\times}0.95(kg)$ 3. Several types of modified Broca's index recommended by author are as follows: I. In male, for $18{\sim}29$ age group $\{height(cm)-100\}{\times}0.90(kg)$ and for $30{\sim}59$ age group $\{height(cm)-100\}{\times}0.95(kg)$ In female, for $18{\sim}29$ age group $\{height(cm)-100\}{\times}0.90(kg)$ and for $30{\sim}39$ age group $\{height(cm)-100\}{\times}1.00(kg)$ II. In male, for all ages group $\{height(cm)-100\}{\times}0.95(kg)$ In female, for all ages group $\{height(cm)-100\}{\times}1.00(kg)$ III. In both sexes, for all ages group $\{height(cm)-100\}{\times}0.95(kg)$ Note: The first type of modified Broca's index is the most precise one in estimating standard body weight among several types established by author. 4. Error of estimated standard body weight appearing by applying modified Broca's ind

심흉비(心胸比)의 보험의학적(保險醫學的) 고찰(考察)

임영훈,Im, Young-Hoon 한국생명보험의학회 1985 保險醫學會誌 Vol.2 No.1

A statistical analysis on the cardiothoracic ratio in insurance medicine was carried out for 5,200 insured persons who were medically examined including photofluorography of the chest at the Honam medical department, Dong Bang life insurance Company, Ltd from November, 1979 to August, 1984. The results were as follows: 1. The mean value of the cardiothoracic ratio in all of the insured was $44.2{\pm}4.3%$. The mean value of the cardiothoracic ratio was $43.1{\pm}4.1%$ in all males and $45.2{\pm}4.2%$ in all females, and the difference of the values between males and females showed statistical significance(P<0.001). In each age group, the mean value of the cardiothoracic ratios of female was higher than that of male without exception and the difference of the values between males and females showed statistical significance(P<0.001). The mean value of the cardiothoracic ratio showed gradual increase with age from the second to sixth decade in male(P<0.05 or 0.001 after fourth decade) and from the second to seventh decade in female(P<0.05 or 0.001 from the second to sixth decade). 2. Correlation between both sexes and among age groups relating to the cardiothoracic ratios of the insureds seen to be a physiological phenomenon of the cardiac size and should be considered on the rating of the cardiothoracic ratio. Based on the correlation above mentioned and an author's assumption that the incidence of normal and abnormal cardiothoracic ratios in each age group would show the same rate in male and female, author prepared a modified rating table from the existing table; in male group the existing rating table is used and in female group the ratings of 0, 30-50, 50-100 and 100-D are to calculate by the cardiothoracic ratio of 51%or under, 52-56%, 57-61% and 62% or over respectively in the age group below 39, by the cardiothoracic ratio of 52% or under, 53-57%, 58%-62% and 63% or over respectively in the age group of 40-49, by the cardiothoracic ratio of 53% or under, 54-58%, 59-63% and 64% or over respectively in the age group over 60. 3. The relative frequency distribution polygons of the cardiothoracic ratio of both sexes drawn in a pair on one coordinate plane revealed lying in juxtaposition each other horizontally and showed the shifting of females polygon to male's one toward the direction of greater value of the cardiothoracic ratio at a short distance which increased gradually with age. 4. The minimum cardiothoracic ratio was 31.2% and the maximum cardiothoracic ratio was 63.6% in all of the insured. 5. In each age group, no significant sex difference was found in the relative frequency distribution of ratings by the cardiothoracic ratios of 5,200 insureds by using the rating table modified by author, while significant sex difference was found by using the existing rating table.

MPEG-4 AVC를 위한 고속 인터 예측기의 하드웨어 구현

임영훈,이대준,정용진,Lim Young hun,Lee Dae joon,Jeong Yong jin 한국통신학회 2005 韓國通信學會論文誌 Vol.30 No.3C

본 논문에서는 MPEG-4 AVC 부호화기를 위한 고속 인터 예측기에 대한 하드웨어 구조를 제안한다. 동영상 압축기술인 MPEG-4 AVC 부호화기의 전체 구성 중에서 핵심 부분인 인터 예측기를 1/4화소 단위로 움직임 추정을 수행 할 수 있도록 하드웨어 구조를 설계하였으며 이를 위해 블록 조각화, 움직임 추정, 움직임 보정의 기본적인 구조를 구성하고 실시간 동영상 부호화를 할 수 있도록 인터 메모리와 1/4화소 단위 고속 블록 계산기 등을 이용하였다. 구현된 전체 모듈은 Altera Excalibur 디바이스와 Xilinx Virtex2 디바이스를 이용한 FPGA 구성을 통해 검증하고 삼성 STD130 0.18um CMOS Cell Library를 이용하여 합성 및 검증을 하였다. 이렇게 검증된 구조의 성능은 ASIC으로 구현할 경우 최대 동작 주파수가 약 62.5MHz이며 성능은 QCIF크기의 영상데이터를 기준으로 초당 약 88프레임의 인터예측을 수행할 수 있다. 본 성능은 하드웨어 기반의 MPEG-4 AVC 실시간 부호화기를 설계하기에 적합한 구조임을 보여준다. In this paper, we propose an advanced hardware architecture for the fast inter prediction engine of the video coding standard MPEG-4 AVC. We describe the algorithm and derive the hardware architecture emphasizing and real time operation of the quarter_pel based motion estimation. The fast inter prediction engine is composed of block segmentation, motion estimation, motion compensation, and the fast quarter_pel calculator. The proposed architecture has been verified by ARM-interfaced emulation board using Excalibur & Virtex2 FPGA, and also by synthesis on Samsung 0.18 um CMOS technology. The synthesis result shows that the proposed hardware can operate at 62.5MHz. In this case, it can process about 88 QCIF video frames per second. The hardware is being used as a core module when implementing a complete MPEG-4 AVC video encoder chip for real-time multimedia application.

MPEG-4 AVC를 위한 고속 다해상도 움직임 추정기의 하드웨어 구현

임영훈,정용진,Lim Young-hun,Jeong Yong-jin 한국통신학회 2004 韓國通信學會論文誌 Vol.29 No.11C

본 논문에서는 다해상도 움직임 추정 알고리즘을 이용하여 모션 리터를 검색하는 고속 다해상도 움직임 추정기에 대한 하드웨어 구조를 제안한다. 동영상 압축기술인 MPEG-4 AVC 전체 구성 중에서 핵심 부분인 움직임 추정 모듈을 하드웨어로 설계하기 위하여 기본적인 구조를 구성하고 높은 화질로 실시간 부호화를 할 수 있도록 고속 움직임 검색을 위해 특수하게 설계된 램 구주 메모리 공유, 4화소x4화소 Motion Vector 추출 등과 같은 기술들을 사용하여 전체 움직임 검색기를 구현하였다. 구현된 전체 모듈은 Altera(사)의 Excalibur 디바이스를 이용한 FPGA 구성을 통해 검증하고 최종적으로 Samsung STD130 0.18um CMOS Cell Library를 이용하며 합성 및 검증을 하였다. 이렇게 검증된 구조의 성능은 ASIC으로 구현할 경우 최대 동작 주파수가 약 140MHz이며 QCIF(176화소x144화소) 사이즈 기준으로 초당 약 1100프레임, 4CIF(704화소x576화구 사이즈 기준으로 초당 약 70프레임의 움직임을 검색할 수 있다 본 성능은 하드웨어 기반의 MPEG-4 AVC 실시간 부호화기를 설계하기에 적합한 구조임을 보여준다. In this paper, we propose an advanced hardware architecture for fast multi-resolution motion estimation of the video coding standard MPEG-1,2 and MPEG-4 AVC. We describe the algorithm and derive hardware architecture emphasizing the importance of area for low cost and fast operation by using the shared memory, the special ram architecture, the motion vector for 4 pixel x 4 pixel, the spiral search and so on. The proposed architecture has been verified by ARM-interfaced emulation board using Excalibur Altera FPGA and also by ASIC synthesis using Samsung 0.18 m CMOS cell library. The ASIC synthesis result shows that the proposed hardware can operate at 140 MHz, processing more than 1,100 QCIF video frames or 70 4CIF video frames per second. The hardware is going to be used as a core module when implementing a complete MPEG-4 AVC video encoder ASIC for real-time multimedia application.