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도루묵 (Arctoscopus japonicus)의 유영행동 특성에 관한 가시화 연구
편용범(Yongbeom PYEON),양은석(Eunseok YANG),강신구(Shinku KANG),이경훈(Kyunghoon LEE) 전남대학교 어업기술연구소 2016 어업기술연구소보고지 Vol.9 No.1
This paper aims to verify its large pectoral fins how to give an effect on the swimming behavior of sandfish as a demersal fish so that Particle Image Velocimetry (PIV) was utilized to understand the swimming ability and to analyze the 2 dimensional current field near to sandfish at swimming momentum. There was no change of mean swimming speed of sandfish but it was observed that its pectoral fins give an effect on the swimming behavior with its caudal fin by turns.
편용범(Yongbeom Pyeon),김윤공(Yoongong Kim),김도훈(Dohoon Kim),오우석(Wooseok Oh),한인우(Inwoo Han),이경훈(Kyounghoon Lee) 제어로봇시스템학회 2018 제어·로봇·시스템학회 논문지 Vol.24 No.2
Farmers attach oyster seeds by combining oyster shells manually with lines in oyster longline aquaculture. This paper develops an automated machine for culturing and seed production with the aim of preparing alternate ways to increase productive efficiency and reduce fishing population. This study tries to increase productive efficiency and reduce production time followed by duplicate operations by unifying longline manufacturing processes for oyster culturing and seed production. This study also tried to realize performance with over 40 lines by automating attachment processes in manufacturing oyster seed shells using culturing PP lines. Mechanical harvesting after the 1990s has allowed longline farming methods to maintain a production capacity of 30,000-40,000 tons in oyster aquaculture. However, reduction in the fishing population is currently decreasing production capacity, which necessitates production automation. This study can be expected to improve production capacity and reduce labor costs for each household. It will also enable the industry to cope with unstable future labor demand.
환경변화에 따른 바지락(Ruditapes philippinarum)의 반응 가시화
김도영(Doyoung KIM),채수진(Sujin CHAE),편용범(Yongbeom PYEON),이경훈(KyoungHoon LEE) 전남대학교 어업기술연구소 2021 어업기술연구소보고지 Vol.14 No.1
This study investigated find the respiration rate in accordance with the water temperature conditions and salinity by analyzing respiration pattern of philippinarum(Ruditapes philippinarum). We conducted to observe and record the flow of fluid by breathing in the target organism using PIV method. Philippinarum were placed in the experimental tank after stabilizing of water temperature and salinity. Recording was commenced when the tank flow was in static after putting particle into the tank. Laser generator was mounted on the side of experimental tank and camera on the front of the tank. the scattering of particles from the light source was recorded and the images were post-processed by software and analyzed results. At 15.1℃ and 27.0‰, the maximum turbulence intensity was 5,468×10<SUP>-6</SUP> m/s. At 19.4℃ and 26.8‰, the maximum turbulence intensity was 26,357×10<SUP>-6</SUP>m/s. Comparing the maximum turbulence intensity between the two experiments shows a difference of about 4.8 times.
나혁준(Hyeokjoon NA),강태윤(Taeyun KANG),편용범(Yongbeom PYEON),이경훈(Kyounghoon LEE) 전남대학교 어업기술연구소 2017 어업기술연구소보고지 Vol.10 No.1
Lots of the whitening have been happening both in the coastal areas and in the East Sea. As one of the causes of the whitening is thought to be urchin because echinoidea consume seaweed by 5% of its weight per day. Therefore, the biological research on echinoidea is necessary to prevent the whitening. This paper analyzed the behavior patterns of echinoidea by electrical stimulation and verified the possibility of herding to prevent the whitening using the particle image velocimetry (PIV). Reaction of sea urchin was investigated by the external stimuli. Results showed that the echinoidea did not respond to the weak electrical stimulus (1.5V, 0.12A), but strongly responded to the strong electrical stimulation (3.5V, 0.27A).
PIV기법을 이용한 보리새우(Marsupenaeus japonicus )의 유영행동 가시화
이근니(Geunni LEE),이사라(Sara LEE),편용범(Yongbeom PYEON),이경훈(Kyunghoon LEE) 전남대학교 어업기술연구소 2020 어업기술연구소보고지 Vol.13 No.1
Understanding swimming patterns of marine animal is of utmost significance in ecological studies. The purpose of this experiment is to analyze the traits of swimming behaviors and abilities of the barley shrimps. We believe that our study will serve as a groundwork for the future studies by providing fundamental data. The subjects of the study are divided into two groups based on the body size, Group A of barley shrimps (110-180mm) and Group B of relatively larger barley shrimps (190-220mm). PIV was implemented to observe and record the current field generated through tail flip movements and pleopod swimming of target shrimps. The result of the experiment showed marginal difference between groups. The average flow velocity in pleopod swimming observed in Group A was 0.026m/s, whereas Group B was 0.03 m/s, which marks 1.36 times faster in speed. The average flow velocity observed in tail flip movements in Group A was 0.022 m/s, while Group B showed rather faster velocity of 0.03 m/s, again faster by 1.2 times. As a conclusion, this experiment demonstrates the relation among the size, strength and the velocity of the movements of shrimps, evidenced by greater average flow velocity in the experiment group with larger body sizes, thus showing stronger movement.
3차원 패턴 레이저를 이용한 유영어류의 형태 및 크기 측정
양용수 ( Yongsu Yang ),이경훈 ( Kyounghoon Lee ),편용범 ( Yongbeom Pyeon ),윤은아 ( Eun A Yoon ),이동길 ( Dong Gil Lee ),조현수 ( Hyun Su Jo ) 한국어업기술학회 2016 수산해양기술연구 Vol.52 No.2
This study aims to estimate the species, size and shape of fish using a non-contact 3 dimensional pattern laser so that this preliminary test was carried out to understand the structural feature and length of goldfish according to water turbidity and depth in the aquacultural tank. 3-D pattern laser could clearly detect its morphological shape except the caudal fin due to soft tissue. Since the sensing strength of line laser light according to depth has sufficient power, it is possible to measure its depth and structural feature in the detected range. The result showed that the measured error of individual`s fork length was less than ±1% in the water using 3-D pattern laser, when compared with the measured value in the air.
전양수(Yang-Soo JEON),오윤영(Yun-Young OH),편용범(Yongbeom PYEON),이경훈(Kyounghoon LEE) 전남대학교 어업기술연구소 2019 어업기술연구소보고지 Vol.12 No.1
The recent mass mortality of abalone in aquaculture was caused by a rapid growth of harmful bacteria such as vibrio due to abnormal high temperature phenomenon. In order to prevent these mass mortality of abalone, it is needed to provide adequate electric stimulus to sterilize them. This study analyzes the behavior patterns of abalone according to electric stimulus by observing the ambient flow rates and turbulence intensities. It also investigates the electric responses of abalone according to external stimulus sources using PIV, a noncontact velocity measurement method. The average flow velocity of abalone was measured to be about 0.0015 m/s and the average turbulence intensity was measured to be about 44.7%. When a [1.5V,0.12A] stimulus was provided, the mean flow velocity and the average turbulence intensity were estimated to be about 0.0023 m/s and 46.4%, respectively. When a [3.5V,0.27A] stimulus was provided, the mean flow velocity was about 0.0096 m/s and the average turbulence intensity was about 60.7%.