• 제목/요약/키워드: Bio-Data

검색결과 2,098건 처리시간 0.033초

신경회로망을 이용한 담배 숙도인식 및 등급판정 (Recognition of Tabacco Ripeness & Grading based on the Neural Network)

  • 이상식;이충호;이대원;황헌
    • 한국연초학회지
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    • 제17권1호
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    • pp.5-14
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    • 1995
  • Efficient algorithms for the automatic classification of flue-cured tovacco ripeness and grading have been developed The ripeness of the tobacco was classified into 4 levels vased on the color. The lab-built simple RGB color measuring system was utilized for detecting the light reflectance of the tobacco leaves. The measured data were used far training the artificial neural network The performance of the trained network was also tested far the untrained samples. The spectrophotometer was used to detect the light reflectance and absorption of the graded tobacco leaves in the frequency ranges of the visible light The measured data and the statistical analysis was performed to investigate the light characteristics of the graded samples. The measured data were obtained from samples of 5 different grades directly without considering the leaf positions. Those data were used far training the artificial neural network The performance of the trained network was also tested far the untrained samples. The neural network based sensor information processing showed successful results for grading of tobacco leaves.

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생체 정보와 다중 분류 모델을 이용한 암호학적 키 생성 방법 (Cryptographic Key Generation Method Using Biometrics and Multiple Classification Model)

  • 이현석;김혜진;양대헌;이경희
    • 정보보호학회논문지
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    • 제28권6호
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    • pp.1427-1437
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    • 2018
  • 최근 생체 인증 시스템이 확대됨에 따라, 생체 정보를 이용하여 공개키 기반구조(Bio-PKI)에 적용하는 연구들이 진행 중이다. Bio-PKI 시스템에서는 공개키를 생성하기 위해 생체 정보로부터 암호학적 키를 생성하는 과정이 필요하다. 암호학적 키 생성 방법 중 특성 정보를 숫자로 정량화하는 기법은 데이터 손실을 유발하고 이로 인해 키 추출 성능이 저하된다. 이 논문에서는 다중 분류 모델을 이용하여 생체 정보를 분류한 결과를 이용하여 키를 생성하는 방법을 제안한다. 제안하는 기법은 특성 정보의 손실이 없어 높은 키 추출 성능을 보였고, 여러 개의 분류 모델을 이용하기 때문에 충분한 길이의 키를 생성한다.

품질보증 시스템 핵심$\cdot$경영의 요체

  • 오종화
    • Bio news
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    • 2호
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    • pp.37-37
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    • 2003
  • Documentation이라면 문서화 또는 문서관리라고 번역하고 있는데 문서를 작성하고 보관하고 필요할 때 추적, 검색할 수 있도록 하는 일체의 행위를 말한다. ISO에서는 document and data control 이라는 항을 두고 있지만 EU 및 WHO GMP에서는 Documentation이라는 좀 더 포괄적인 의미의 용어로 한 항목을 설정하고 있다. 물론 current GMP에서도 여러 가지 문서에 관하여 언급하고 있지만 따로 항목을 두지는 않

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Informatics for protein identification by tandem mass spectrometry; Focused on two most-widely applied algorithms, Mascot and SEQUEST

  • Sohn, Chang-Ho;Jung, Jin-Woo;Kang, Gum-Yong;Kim, Kwang-Pyo
    • Bioinformatics and Biosystems
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    • 제1권2호
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    • pp.89-94
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    • 2006
  • Mass spectrometry (MS) is widely applied for high throughput proteomics analysis. When large-scale proteome analysis experiments are performed, it generates massive amount of data. To search these proteomics data against protein databases, fully automated database search algorithms, such as Mascot and SEQUEST are routinely employed. At present, it is critical to reduce false positives and false negatives during such analysis. In this review we have focused on aspects of automated protein identification using tandem mass spectrometry (MS/MS) spectra and validation of the protein identifications of two most common automated protein identification algorithms Mascot and SEQUEST.

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Biological Object Downloader (BOD) Service for Easy Download and Management of Biological Databases

  • Park, Dae-Ui;Lee, Jung-Woo;Yoon, Gi-Seok;Gong, Sung-Sam;Bhak, Jong
    • Genomics & Informatics
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    • 제5권4호
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    • pp.196-199
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    • 2007
  • BOD is an FTP service management tool on the Internet. It was developed for biological researchers in South Korea. It enables easier and faster access of bioinformation without having to go through foreign FTP sites. BOD includes an automatic downloader with a management and email alert service from which the user can easily select and schedule any biological database. Once listed in BOD, the user can check and modify the download status and data from an additional email alert service.

GLP 시험에서의 시험물질 특성파악 (Characterization of Test Substance in the GLP)

  • 이은정;송경석;유일재
    • Toxicological Research
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    • 제23권2호
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    • pp.173-177
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    • 2007
  • The GLP contains specific language concerning characterization of the test, control and reference substances used in toxicity studies. This paper will describe and discuss what types of documents are required to support test/reference substance characterization under GLP system. The purpose of this article is to present an overview of data needed in the characterization package that will adequately define the substance. Most sponsors use a certificate of analysis (COA) to communicate the test sub-stance characterization status information to the contracting research organizations. The COA should provide the test $material^{\circ}{\phi}s$ characterization results, substance storage requirements, expiration dates, verification of the collection of the retention sample, archival location of the data to support the characterization and GLP compliance status of the characterization.

QUANTIFICATION OF COW′S BODY PARAMETERS USING COMPUTER VISION

  • Lee, D. W.;Kim, H. T.;Kim, Y. S.
    • 한국농업기계학회:학술대회논문집
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    • 한국농업기계학회 2000년도 THE THIRD INTERNATIONAL CONFERENCE ON AGRICULTURAL MACHINERY ENGINEERING. V.II
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    • pp.344-353
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    • 2000
  • Recent mechatronics technology is the most appropriate high technology in the agricultural application to save repetitious labor. Cow's body parameters were measured by traditional several measurer. Image processing technology was used to measure automatically their parameters to reduce lots of labor and time. The parameters were measured form a small model cow, which is easily measured, instead to a real cow. The image processing system designed and built for this project was composed of a Pentium PC, and TV frame card two cameras which were located on side and top of model cow. 11 parameters of cow's body were measured and the error between real data and the data by image processing was less than 10%. Based on the results of this research the parameters of a real cow could be measured in the future.

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필터링 기법을 이용한 농업용저수지 수위자료의 품질관리 방안 (Quality Control on Water-level Data in Agricultural Reservoirs Considering Filtering Methods)

  • 김경환;최규훈;정형모;주동혁;나라;최은혁;권재환;유승환
    • 한국농공학회논문집
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    • 제63권5호
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    • pp.83-93
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    • 2021
  • Agricultural reservoirs are important facilities for storing or managing water for the purpose of securing agricultural water, creating and expanding agricultural production bases, and using them to increase agricultural production. In particular, the Korea Rural Community Corporation (KRC) manages agricultural reservoirs scattered across the country, and officially recognizes and distributes hydrological data to increase their public utilization and aims to improve the value of water resources. Data on the water level of agricultural reservoirs are important. However, errors such as missing values and outliners limit utilization of the data in various fields of research and industry. Therefore, water quality data measures should be devised to increase reliability. this study categorized different error types and looked at automatic correction methods to enhance the reliability of the vast hydrological data. In addition, the water level data corrected from errors were compared to the reference hydrologic data through expert judgment in accordance with the quality control procedure, and the most appropriate measures were verified. As KRC manages more agricultural reservoirs than any other institution, the proposed method of efficient and automatic water level data correction in this study is expected to increase the availability and reliability of the hydrological data.