• 제목/요약/키워드: Biological monitoring

검색결과 1,051건 처리시간 0.028초

생체신호 무선 송수신을 위한 소형,저전력 통신시스템 개발 (Low-power wireless communication System for Biosignal transmission)

  • 이강휘;이정환;김경섭;김동준
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2005년도 학술대회 논문집 정보 및 제어부문
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    • pp.370-372
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    • 2005
  • Inconveniences which might arise in transmitting measured biological data based on cable protocols generally are recognized critical points in tele-monitoring environment and also restrict the mobility of the user. a. Especially, activity monitoring which is importantly recognized as a core parameter in ubiquitous healthcare arena and weight management, pervasive and wireless measuring technology is most needed. In this paper, we would like to suggest lower power, miniaturized communication system in order to solve the above problems. The suggested system is powered by small coin-size battery. Also, The suggested system is compared with a blue-tooth module which is generally available in the commercial market. Even though, the suggested system didn't have higher transmission rate, its low power consumption make the suggested system would be feasible in ubiquitous monitoring of biological signals in ubiquitous healthcare arena.

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향정신성약물의 치료적 약물농도 검사 (Therapeutic Drug Monitoring (TDM) of Psychotropic Drugs)

  • 양병환
    • 생물정신의학
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    • 제5권1호
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    • pp.56-65
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    • 1998
  • Clinicians can use therapeutic drug monitoring(TDM) to optimise dosage decisions with psychotropic drugs, in order to maximize efficacy and prevent toxicity, especially when individuals are nonresponsive to treatment or vulnerable to adverse reactions with standard doses because age, disease states or drug interactions. Currently, therapeutic drug concentrations have been established for the TCA and lithium. There is also evidence for the usefulness of TDM with carbamazepine, valproic acid and some antipsychotic drugs. However for most psychotropic drugs this approach remains experimental. TDM-assisted psychiatric treatment is potentially useful and cost effective, particularly when applied by psychiatrists who are knowledgeable of pharmacokinetics and pharmacodynamics.

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지표생물의 독성물질 반응 행동에 대한 수리적 평가 (Mathematical Evaluation of Response Behaviors of Indicator Organisms to Toxic Materials)

  • 전태수;지창우
    • Environmental Analysis Health and Toxicology
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    • 제23권4호
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    • pp.231-245
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    • 2008
  • Various methods for detecting changes in response behaviors of indicator specimens are presented for monitoring effects of toxic treatments. The movement patterns of individuals are quantitatively characterized by statistical (i.e., ANOVA, multivariate analysis) and computational (i.e., fractal dimension, Fourier transform) methods. Extraction of information in complex behavioral data is further illustrated by techniques in ecological informatics. Multi-Layer Perceptron and Self-Organizing Map are applied for detection and patterning of response behaviors of indicator specimens. The recent techniques of Wavelet analysis and line detection by Recurrent Self-Organizing Map are additionally discussed as an efficient tool for checking time-series movement data. Behavioral monitoring could be established as new methodology in integrative ecological assessment, tilling the gap between large-scale (e.g., community structure) and small-scale (e.g., molecular response) measurements.

A Study on Monitoring Techniques for Dermal Exposure to Hazardous Chemicals

  • Lee, Su-Gil;Lee, Nae-Woo
    • International Journal of Safety
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    • 제8권1호
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    • pp.18-23
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    • 2009
  • Due to dermal exposure to hazardous chemicals causing potential adverse health symptoms through skin absorption, dermal monitoring has had an important role in assessing such exposure. This paper overviews comparatively a number of studies of dermal monitoring with different methodologies such as surface monitoring, skin wiping, skin washing, adhesive methods and tape stripping, fluorescence and infrared spectroscopy, skin patches, pads and clothing, video exposure monitoring and dermal exposure assessment toolkits and models. However, there is a lack of information on the relationship between exposure levels and adverse health symptoms. Therefore, more specific strategies for dermal exposure monitoring should be developed and standardized with further development of biological and ocular monitoring.

산림토양 산성화의 생물지표로써 날개응애(Acari: Oribatida) 이용 가능성 (Potential of Using Oribatid mites(Acari: Oribatida) as Biological Indicators of Forest Soil Acidification)

  • Chuleui Jung;Joon-Ho Lee;Seong-Sik Choi
    • 한국농림기상학회지
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    • 제4권4호
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    • pp.213-218
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    • 2002
  • 국제 기구뿐만 아니라 우리나라에서도 생물 지표를 이용한 환경 모니터링에 관한 관심이 증대하고 있다. 생물 지표는 자국의 국지환경 변화에 잘 반응해야 하므로, 토착 생물지표의 개발은 생태계 복원 및 평가에서 매우 중요한 시발점이다. 환경 스트레스를 달리 받고 있는 남산과 광릉 활엽수림 지역에서 조사된 날개응애 중에서 토양 및 부엽 산도(pH)와 밀접한 관계를 보이는 종을 회귀분석을 통하여 잠재적 생물 지표종으로 선발하였다. 선발된 종은 다음과 같다; Lasiobelba remota, Ceratozetes sp. Tectocepheus velatus, Neogymnobates sp. and Oppia sp.3. 또한 군집구성 및 기능에 매우 중요한 역할을 하는 핵심종(keystone species)으로는, 남산 활엽수림지역에서는 Lohmannia coreana, Ceratozetes sp., Rostrozetes pulcherrimus, Lasiobelba remota 그리고 광릉지역에서는 Neugymnobates sp., Neogymnobates donghaksaensis, Cultroribula tridentata로 나타났다. 생물지표를 이용한 환경 모니터링의 장단점에 대해 고찰하였다.

2011년 11월 고성만 굴(Crassostrea gigas) 양식장 수질환경 모니터링을 통한 이산화탄소 수지 평가 (Evaluation of Simple CO2 Budget with Environmental Monitoring at an Oyster Crassostrea gigas Farm in Goseong Bay, South Coast of Korea in November 2011)

  • 심정희;예미주;임재현;권정노
    • 한국수산과학회지
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    • 제47권6호
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    • pp.1026-1036
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    • 2014
  • Real-time monitoring for environmental factors (temperature, salinity, chlorophyll-a, etc.) and fugacity of carbon dioxide ($fCO_2$) was conducted at an oyster Crassostrea gigas farm in Goseong Bay, south coast of Korea during 2-4th of November, 2011. Surface temperature and salinity were ranged from $17.9-18.7^{\circ}C$ and 32.7-33.8, respectively, with daily and inter-daily variations due to tidal currents. Surface $fCO_2$ showed a range of $390-510{\mu}atm$ and was higher than air $CO_2$ during the study period. Surface temperature, salinity and $fCO_2$ are showed significant correlations with chl.-a and nutrients, respectively. It means when chl.-a value is high in surface water of the oyster farm, active biological production consume $CO_2$ and nutrients from environments and produce oxygen, suggesting a tight feedback between biological processes and environmental reaction. Thus, factors affecting the surface $fCO_2$ were evaluated using a simple mass balance. Temperature and biological productions by phytoplankton are the main factors for $CO_2$ drawdown from afternoon to early night, while biological respiration increases seawater $CO_2$ at night. Air-sea exchange fraction acts as a $CO_2$ decreasing gear during the study period and is much effective when the wind speed is higher than $2-3m\;s^{-1}$. Future studies about organic carbon and biological production/respiration are required for evaluating the roles of oyster farms on carbon sink and coastal carbon cycle.

국내 유통중인 약용작물의 생물학적 위해요소 모니터링 (Monitoring of Biological Hazards in Herbal Crops from Korean Market)

  • 이영섭;이상원;김연복;김옥태;박경훈;이재원;이대영;김금숙;권동렬;한신희
    • 한국약용작물학회지
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    • 제24권2호
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    • pp.143-151
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    • 2016
  • Background: The public has increasing concerns about herbal crops owing to insufficient information on biological hazards such as foodborne pathogens. Therefore, the objective of this study is the development of a herbal crop quality control system through monitoring with biological hazard analysis. Today, it is estimated that millions of people become ill every year from food contamination. The public demands agricultural products of stable and consistent quality. Governments have the responsibility of establishing the standards, legislation and enforcement programs necessary to control food quality and safety. However, research on the biosafety of herbal crop products is still insufficient. Therefore, the implementation of monitoring systems with high standards is critical for public safety. Methods and Results: In this study, we collected 52 samples of herbal crop products, and conducted both quantitative and qualitative biological hazard analysis. With biological hazard analysis, aerobic bacteria, Staphylococcus aureus, Salmonella spp., Escherichia coli, Coliforms, and Listeria spp. could be detected. Conclusions: Herbal crops were found to be contaminated with aerobic bacteria at $3.69{\pm}0.32log\;CFU/g$. Staphylococcus aureus, Salmonella spp., Escherichia coli, Coliforms, and Listeria spp. were not detected in any of the samples. This research suggests that continuous monitoring of biological hazards is required to improve the quality of herbal crops.

2차원 형광센서에 의한 생물공정의 모니터링 (Monitoring of Biological Processes by 2-dimensional Fluorescence Sensor)

  • 이종일;정상윤;서국화
    • KSBB Journal
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    • 제16권5호
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    • pp.493-499
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    • 2001
  • 2차원 형관센서를 이용하여 생물공정을 모니터링하는 기술에 관해 연구하였다. 기존의 광학센서에 비해 2차원 형광센서는 발효공저의 중요한 변수들을 동시에 모니터링하는데 사용될 수 있다. 본 연구에서는 2차원 형광센서를 이용하여 제조합 E. coli, A,. terreus 및 T. vulagis 등의 발효공정을 모니터링하고 미생물의 성장과 생성물의 생성에 대한 형광 스펙트럼의 변화를 정성적으로 비교, 고찰하였다. 2차원 형광센서는 발효공정 이외에도 생물화학반응 및 분리공정에도 쉽게 사용할수 있고 생물공정의 최적화를 도모하는데 이용될 수 있다.

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ANALYSIS OF WATER STRESS OF GREENHOUSE PLANTS USING THERMAL IMAGING

  • K. H. Ryu;Kim, G. Y.;H. Y. Chae
    • 한국농업기계학회:학술대회논문집
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    • 한국농업기계학회 2000년도 THE THIRD INTERNATIONAL CONFERENCE ON AGRICULTURAL MACHINERY ENGINEERING. V.III
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    • pp.593-599
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    • 2000
  • Accurate quantification of plant physiological properties is often necessary for optimal control of an automated greenhouse production system. Conventional crop growth monitoring systems are usually burdensome, inaccurate, and harmful to crops. A thermal image analysis system was used to accomplish rapid and accurate measurements of physiological-property changes of water-stressed crops. Thermal images were obtained from several species of plants that were placed in a growth chamber. Analyzing the images provided the pattern of temperature changes in a leaf and the amount of differences in the temperature of stressed plants and non-stressed plants.

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Diet Composition of Japanese Tree Frog (Hyla japonica) in a Rice Paddy, South Korea

  • Park, So Hyun;Lee, Hyun;Cho, Kang-Hyun
    • Ecology and Resilient Infrastructure
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    • 제5권1호
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    • pp.54-58
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    • 2018
  • Diet composition of amphibians usually reflects the distribution of potential prey within habitats, as well as their diet preference. We identified the diet items of Japanese tree frog (Hyla japonica) using a stomach flushing method in a rice paddy for the establishment of bio-monitoring systems of landscape changes. During the reproductive period, 71% of calling males had empty stomachs. All prey items in the stomachs belonged to the phylum Arthropoda, from eight orders of Insecta and one order of Arachnida. Among insect prey, the most common items in the stomachs were adults of beetles, flies and bugs, and larvae of butterflies and moths. There was a significant positive correlation between the body mass of Japanese tree frogs and the volume of prey items. Our results can provide a basic framework to guide the monitoring systems using prey identification of Japanese tree frogs.