• Title/Summary/Keyword: bio-systems

Search Result 1,371, Processing Time 0.034 seconds

Comprehensive Review of Domestic and Foreign Biomonitoring Programs and Current Status of Bio-sample Application (국내외 바이오모니터링 프로그램 및 생체시료 활용 현황)

  • Kim, Da Hae;Kim, Sungkyoon;Lee, Seungho;Choi, Yoon-Hyeong;Kim, Jin Hee
    • Journal of Environmental Health Sciences
    • /
    • v.47 no.3
    • /
    • pp.205-226
    • /
    • 2021

  • Objectives: Biomonitoring programs have been widely implemented in the field of environmental health, both in Korea and worldwide. Recently, it has been suggested that the storage, management, and utilization of biosamples collected from biomonitoring programs should be organized based on a biobank system. Therefore, we attempted to review the current status of representative biomonitoring programs and biobank systems that have been implemented in Korea and in other countries. Methods: We searched for bio-samples collected in domestic and foreign biomonitoring programs and their applications. For this, we referred to research papers, homepages hosted by biomonitoring programs, and project reports. We also checked information for biobanks related with biomonitoring programs, including the operating systems, facilities, technologies, and regulations of biobanks. Results: We summarized six domestic and 32 foreign biomonitoring programs. These biomonitoring programs collected bio-samples to determine the relationship between environmental chemicals and diseases. Domestically, bio-samples from KoNEHS, KorSEP, MOCEH, KoCHENS, and KorEHS-C were stored at -80℃ in a deep freezer at the National Institute of Environmental Research, while KNHANES samples were stored at Korea Biobank, which has a stabilized biobanking system with a well-established database. Nine foreign biomonitoring programs (JECS, China-NHBP, CKB, CHMS, NHANES, GerES, Germaan ESB, MoBa, and UK Biobank) were ongoing for large populations. Among them, CKB, GermanESB, and UK biobank have been maintained for at least 10 years with their own biomonitoring programs as well as advanced systems for the safe storage of bio-samples. Conclusion: Currently on-going biobanks have devoted considerable efforts to managing bio-samples for public purposes. The preceding domestic and foreign biomonitoring programs and biobanks will be great references for constructing biobank facilities and systems for environmental public health in Korea in the future.

  • https://doi.org/10.5668/JEHS.2021.47.3.205 인용 PDF KSCI

Obstacle Recognition and Avoidance of the Bio-mimetic Underwater Robot using IR and Compass Senso (IR 센서 및 Compass 센서를 이용한 생체 모방형 수중 로봇의 장애물 인식 및 회피)

  • Lee, Dong-Hyuk;Kim, Hyun-Woo;Lee, Jang-Myung
    • Journal of Institute of Control, Robotics and Systems
    • /
    • v.18 no.10
    • /
    • pp.928-933
    • /
    • 2012

  • In this paper, the IR and compass sensors for the underwater system were used. The walls of the water tank have been recognized and avoided treating the walls as obstacles by the bio-mimetic underwater robot. This paper is consists of two parts: 1.The hardware part for the IR and compass sensors and 2.The software part for obstacle avoidance algorithm while the bio-mimetic robot is swimming with the obstacle recognition. Firstly, the hardware part controls through the RS-485 communications between a microcontroller and the bio-mimetic underwater robot. The software part is simulated for obstacle recognition and collision avoidance based upon the data from IR and compass sensors. Actually, the bio-mimetic underwater robot recognizes where is the obstacle as well as where is the bio-mimetic robot itself while it is moving in the water. While the underwater robot is moving at a constant speed recognizing the wall of water tank as an obstacle, an obstacle avoidance algorithm is applied for the wall following swimming based upon the IR and compass sensor data. As the results of this research, it is concluded that the bio-mimetic underwater robot can follow the wall of the water tank efficiently, while it is avoiding collision to the wall.

  • https://doi.org/10.5302/J.ICROS.2012.18.10.928 인용 PDF KSCI

Evaluation of Livestock Odor Reduction Efficiency for Odor Reduction Systems in Domestic Pig Farms (돈사용 스크러버 및 바이오커튼의 축산악취 저감효과 분석)

  • Lee, Minhyung;Yeo, Uk-hyeon;Lee, In-Bok;Jeong, Duek-young;Lee, Sang-yeon;Kim, Jun-gyu;Decano-Valentin, Cristina;Choi, Young-bae;Kang, Sol-moe
    • Journal of The Korean Society of Agricultural Engineers
    • /
    • v.64 no.6
    • /
    • pp.77-86
    • /
    • 2022

  • Various odor reduction systems are being operated at pig houses to improve livestock odor issues. However, the quantitative evaluation of odor reduction efficiency is not sufficiently conducted. The analysis of factors that affect the reduction efficiency also has not been sufficiently conducted. Therefore, in this study, the reduction efficiency of representative odor reduction facilities (bio-curtain, scrubber) operated by domestic pig houses was evaluated. The odor reduction efficiency was evaluated by sampling the air before and after the odor reduction facility in 6 pig houses. Livestock odors were evaluated for complex odors, ammonia, hydrogen sulfide, and VOC. To find factors for reduction efficiency, temperature, humidity, pH of washing resolution, type of washing water, and ventilation rate was measured. As a result, it was found that the scrubber system had the highest reduction efficiency. The reduction efficiency was found to be affected by the scrubber's washing resolution, filler, operating conditions, and size. Bio-curtains may have problems such as deterioration of fan performance due to ventilation fan load, groundwater pollution, and excessive use of groundwater.

  • https://doi.org/10.5389/KSAE.2022.64.6.077 인용 PDF KSCI HTML