네트워크 기반 임베디드 시스템을 위한 IEEE1588 시간동기 구현

전종목,김동길,김은로,이동익 대한임베디드공학회 2014 대한임베디드공학회논문지 Vol.9 No.1

This paper presents a IEEE1588 based clock synchronization technique for a sRIO (Serial RapidIO) network which is applied to a submarine system. Clock synchronization plays a key role in the success of a networked embedded system. Recently, the IEEE1588 algorithm making use of dedicated chipset has been widely used for the synchronization of various industrial applications. However, there is no chipset available for the sRIO network that can offer many advantages, such as low latency and jitter. In this paper, the IEEE1588 algorithm for a sRIO network is implemented using only software without any dedicated chipset. The proposed approach is verified with experimental setup.

BMI 수치가 성인남성의 혈압 및 체력수준에 미치는 영향

전종목(Chun, Jong-Mok),진정권(Jin, Jung-Kwon),이재문(Lee, Jae-Moon) 한국체육과학회 2013 한국체육과학회지 Vol.22 No.3

The purpose of this study was to evaluate the results of analysis of covariance (ANCOVA) with ages that can be controlled through this study, taking into account the fact that adult males can bring a direct impact on the body mass index (BMI) level and blood pressure, and physical fitness. The subjects of this study was 243 adult males, who has no case past history, and BMI groups were divided in three groups (normal, 18.5~22.9 kg/㎡; over weight, 23~24.9 kg/㎡; and obesity, over 25 kg /㎡). The results were analyzed statistically using ANCOVA, and Bonferroni test was used in the event of a significant F-ratio (p<.05). Systolic blood pressure (SBP) and diastolic blood pressure (DBP) in the obesity group was significantly higher than the normal group, respectively (p<.05).VO₂max in the obesity group was significantly lower than the normal and overweight groups, respectively (p<.05). Isokinetic thigh muscle strength in the normal group was significantly higher than obesity group at three variables (knee flexion left, KFL; knee extension right, KER; knee extension left KEL), respectively (all, p<.05). The results of the push-ups, in the obesity group was significantly lower than the normal group (p<.05). Ages that can be controlled through the analysis of covariance, taking into account the results of this study in accordance with the increase of age, the BMI affects respectively.

단기간의 가압 걷기트레이닝이 심혈관 기능 및 근 기능에 미치는 영향

전종목(Jong-Mok Jeon),박원일(Won-Il Park),전박근(Bak-Geun Jeon),김종경(Jong-Kyung Kim),노호성(Ho-Sung Nho),최현민(Hyun-Min Choi) 한국생활환경학회 2009 한국생활환경학회지 Vol.16 No.1

Pressurization training (PT) is designed to perform short term training using exclusive pneumatic belt applying pressure on upper parts of arms and legs to reduce blood flow to limbs. It has not completely been proved whether PT could improve the cardiorespiratory fitness and skeletal muscle function. Subjects were divided into two groups, which were 8 PT group (21.6±1.7 years) and 8 control group without pressurization (23.4±0.6 years). All subjects completed 2 week walk training program. PT group performed walk training with specially designed elastic band wrapped around upper parts of both legs. Pressure was maintained with 220 ㎜Hg for the rest of training period. Control group performed walk training program without pressure on leg's blood flow. The result showed that VEmax and strength of knee flexor were significantly increased in PT group and cross sectional areas of quadriceps on both right and left leg were increased by 2.0 and 1.4%, respectively. VO₂max tended to increase (6%), but there was no significant difference. There were no significant differences in resting levels of IGF-1, testosterone, growth hormone, and myoglobin. It is concluded that short-term walk PT could improve cardiorespiratory function at low intensity and may also be useful method to improve skeletal muscle function such as muscle strength and muscle hypertrophy.

중년여성의 체질량지수와 혈압, 최대산소섭취량 및 등속성 근력에 관한 비교 연구

전종목(Chun, Jong-Mok),이재문(Lee, Jae-Moon) 한국체육과학회 2014 한국체육과학회지 Vol.23 No.2

The purpose of this study to explore and conclude relationships between body mass index (MBI) level and blood pressure, VO₂max and isokinetic strength. The subjects chosen for the study were sample size of 211 middle-aged women divided into three groups(normal, 18.5~22.9 ㎏/㎡; overweight, 23~24.9㎏/㎡; obese, over 25㎏/㎡) according to their BMI level. The data was analyzed by analysis of covariance(ANCOVA) with age as the covariate via SPSS 18.0 soft program. One-way ANOVA was used because the relationship between age and BMI cannot be established. Bonferroni test was performed as post-hoc analysis to obtain the results hereafter with significance level set at α=.05. First, the obese group showed higher systolic blood pressure(SBP) and diastolic blood pressure(DBP) than that of the normal group, with significance(both p<.05). Also SBP was significantly higher in the overweight group than the normal group(p<.05). Second, the obese group’s VO₂max was lower than those of the overweight and normal group, with significance(both p<.05). Lastly, isokinetic strength in the normal group was significantly higher than the obese group in four variables(Knee flexion right, KFR; knee flexion left, KFL; knee extension right, KER; knee extension left, KEL) (in which of all p<.05) while KER and KEL was significantly higher in overweight group than in the obese group(both p<.05). Therefore it can be concluded that BMI level has influence on blood pressure, VO₂max, and isokinetic strength, calling for more awareness on the importance of middle-aged women’s weight control. Also the results can possibly serve for studying and developing activities that consider middle-aged women’s shape and physical.

함정 전투체계를 위한 전원제어망 구현 및 성능 분석

전종목(Jong-Mok Jeon),김현실(Hyun-Sil Kim) 대한전자공학회 2016 대한전자공학회 학술대회 Vol.2016 No.11

함정용 다기능콘솔 내부 음향 시스템의 잡음 누화에 관한 고찰

전종목(Jeon Jong Mok) 한국통신학회 2017 한국통신학회 학술대회논문집 Vol.2017 No.11

임베디드 리눅스 기반 CAN 버스의 문제점 및 개선 방안

전종목(Jong-Mok Jeon) 대한전자공학회 2018 대한전자공학회 학술대회 Vol.2018 No.11

20세 전ㆍ후의 남자대학생과 육군장병들의 신체구성 및 생활습관에 관한 비교 연구

유승희,전종목 경희대학교 체육과학연구소 2000 體育學論文集 Vol.28 No.-

From March-25, 2000 to April-2, 2000, we investigated anthropometry, body composition, and general lifestyle of 157 collegiate students in Kyung-Gi province and 106 soldiers of the Korean Army Soldiers in Kang-Won province. The results were as follows : 1.There was no significant difference of the height between the students and the soldiers. The Weight of the students was 64.9±7.8kg compared to 69.3±7.1kg of the weight of the Army soldiers. The percent body fat was 17.0±4.1% and 14.8±3.2% for the students and the sold-iers, respectively. 2.The trend of height is that the most highest population is the under fat groups, with the students 173.8±5.9cm and the soldiers 173.6±6.0cm. The population with obese groups had the lowest height. 3.TBW of the soldiers was 40.9±4.2ℓ, which is about 3.7 ℓ more than TBW of the students. And the soldiers had more protein and mineral of body, about 1.4kg and 0.14kg. respectively. 4.In students, the obese group had the most TBW, 38.0±2.8ℓ. In sold-iers, the under fat soldiers, however, had the most TBW, 41.2±4.2ℓ. 5.The percents of people with the iregular lifestyle were 79% and 17%, the students and soldiers, respectively, and the percent of people drinking three times per week were 29% and 3%, the students and soldiers, respectively. 6.51% in the students and 75% in the soldiers were smokers, and 64% in the students and 85% in the soldiers considered them healthy. 7.65% in the students and 7% in the soldiers have taken an irregular meal and 50% and 15% often had instant food. 8.25% in the students and 100% in the soldiers take an regular exercise, and frequency is 3 times per week and 5 times per week, students and soldiers respectively. 9.In collegiate students, Pearson coefficient correlation between height and weight was proportional with r=0.320, between height and LBM with r=0.565, and also weight and WHR with r=0.490, weight and LBM with r=0.900, weight and percent body fat with r=0.559, WHR and LBM with r=0.311, percent body fat and WHR with r=0.515, smoking amount and lifestyle with r=0.277, smoking amount and frequency of drinking with r=0.370, but height and percent body fat had inverse proportion with r=-0.342. 10.In Amy soldiers, Pearson coefficient correlation between height and weight was proportional with r=0.675, and also between height and LBM with r=0.744, weight and WHR with r=0.298, weight and LBM with r= 0.932, percent body fat and WHR with r=0.284. But Pearson coefficient correlation between percent body fat and smoking amount had inverse proportion with r=-0.240.

입경분포가 있는 정상상태 유동층으로부터의 입자의 선별 유출

김희영,전종열,윤풍,송영목 한국화학공학회 1988 NICE Vol.6 No.4

입경분포가 있는 정상상태 유동층으로부터의 입자의 선별 유출

김희영,윤풍,전종열,송영목 한국화학공학회 1988 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.26 No.4

입자가 성장하는 연속 정상상태 유동층 반응기에서의 입자 유동을 상온에서 모사할 수 있는 반응부 유동층의 하부에 큰 제품입자를 선별 유출할 수 있는 분리관을 설치하여 입경분포를 갖는 반응부 유동층 입자들의 분리를 연구하였다. 이 분리관을 통해 정상상태 반응부 유동층내에서 큰 입자들을 선택적으로 계속 유출하기 위해 혼합입자의 최대 및 최소 입자에 대한 초기 유동속도의 범위내에서 분리관 내부의 유동상태를 유지시켰다. 이러한 분리관을 이용하여 반응부 유동층에서의 유동조건에 영향을 미치지 않고 높은 입자 분리 효과를 거둘 수 있었는데, 이를 위해서는 반응부 유동층의 평균입경 및 분포의 특성과 분리관에서의 유동 특성에 대해 제한적인 조업범위가 존재함이 나타났다. 이러한 허용 조업범위하에서의 실험결과를 토대로 주어진 구조에 대해 반응부 유동총의 입경분포와 선별 유출된 입자들의 입경분포와의 관계식을 조업특성 변수들과 입경외 함수로 표시하여 실험 값들을 정량적으로 설명할 수 있음을 밝혔다. Continuous segregation of particles with size distribution was studied in a particle withdrawal boot attached to the bottom of a fluidized bed which was installed to simulate the particle dynamics in a particle growing reactor. In order to withdraw continuously and preferentially large particles in steady state from the main fluidized bed the boot was mildly fluidized between the incipient fluidization velocities of the largest and smallest size fractions. It was observed that a high degree of segregation can be achieved in the limited range of the fluidization condition at the boot as well as of the particle size and distribution mode at the main fluidized bed. In the acceptable operation range the segregation efficiency of large particles could fairly well be related to those operational parameters for a given boot geometry, and the empirical relationship proposed in this study were in good agreement with experimental observations.