• 한국농업기계학회:학술대회논문집
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• 한국농업기계학회 2000년도 THE THIRD INTERNATIONAL CONFERENCE ON AGRICULTURAL MACHINERY ENGINEERING. V.III
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• pp.623-631
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• 2000

Advanced Life Support Systems (ALSS) are being studied to support human life during long-duration space missions. ALSS can be categorized into four subsystems: Crew, Biomass Production, Food Processing and Nutrition, Waste Processing and Resource Recovery. The System Studies and Modeling (SSM) team of New Jersey-NASA Specialized Center of Research and Training (NJ-NSCORT) has facilitated and conducted analyses of ALSS to address systems level issues. The underlying concept of the SSM work is to enable the effective utilization of information to aid in planning, analysis, design, management, and operation of ALSS and their components. Analytical tools and computer models for ALSS analyses have been developed and implemented for value-added information processing. The results of analyses have been delivered through the Internet for effective communication within the advanced life support (ALS) community. Several modeling paradigms have been explored by developing tools for use in systems analysis. They include object-oriented approach for top-level models, procedural approach for process-level models, and application of commercially available modeling tools such as MATLAB$\^$(R)//Simulink$\^$(R)/. Every paradigm has its particular applicability for the purpose of modeling work. An overview is presented of the systems studies and modeling work conducted by the NJ-NSCORT SSM team in its efforts to provide systems analysis capabilities to the ALS community. The experience gained and the analytical tools developed from this work can be extended to solving problems encountered in general agriculture.

• Mycobiology
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• 제44권3호
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• pp.162-170
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• 2016

In this paper, we demonstrate the ability of Arabidopsis thaliana to detect different mixtures of volatile organic compounds (VOCs) emitted by the common indoor fungus, Aspergillus versicolor, and demonstrate the potential usage of the plant as a bioindicator to monitor fungal VOCs in indoor air. We evaluated the volatile production of Aspergillus versicolor strains SRRC 108 (NRRL 3449) and SRRC 2559 (ATCC 32662) grown on nutrient rich fungal medium, and grown under conditions to mimic the substrate encountered in the built environment where fungi would typically grow indoors (moist wallboard and ceiling tiles). Using headspace solid phase microextraction/gas chromatography-mass spectrometry, we analyzed VOC profiles of the two strains. The most abundant compound produced by both strains on all three media was 1-octen-3-ol. Strain SRRC 2559 made several terpenes not detected from strain SRRC 108. Using a split-plate bioassay, we grew Arabidopsis thaliana in a shared atmosphere with VOCs from the two strains of Aspergillus versicolor grown on yeast extract sucrose medium. The VOCs emitted by SRRC 2559 had an adverse impact on seed germination and plant growth. Chemical standards of individual VOCs from the Aspergillus versicolor mixture (2-methyl-1-butanol, 3-methyl-1-butanol, 1-octen-3-ol, limonene, and ${\beta}-farnesene$), and ${\beta}-caryophyllene$ were tested one by one in seed germination and vegetative plant growth assays. The most inhibitory compound to both seed germination and plant growth was 1-octen-3-ol. Our data suggest that Arabidopsis is a useful model for monitoring indoor air quality as it is sensitive to naturally emitted fungal volatile mixtures as well as to chemical standards of individual compounds, and it exhibits relatively quick concentration- and duration-dependent responses.

• 한국미생물생명공학회:학술대회논문집
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• 한국미생물생명공학회 2005년도 2005 Annual Meeting & International Symposium
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• pp.66-70
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• 2005

Microbiology research must be conducted in a fashion that assures the health and well being of the researcher and the safety of the community. This lecture raises awareness of biosafety issues and discusses how the interaction of the pathogen being studied, the person conducting the research, and the practices being used can be manipulated to assure safety. The characterization of pathogens into Risk Groups, how these relate to Biosafety Levels, and the personal practices and laboratory design criteria associated with each Biosafety Level are explained. The importance of preventing or containing aerosols, limiting opportunities for cross-contamination, and taking a flexible multi-component approach to biosafety are emphasized.

• Genomics & Informatics
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• 제12권4호
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• pp.261-267
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• 2014

MicroRNAs (miRNAs) are known for their role in mRNA silencing via interference pathways. Repetitive elements (REs) share several characteristics with endogenous precursor miRNAs. In this study, 406 previously identified and 1,494 novel RE-derived miRNAs were sorted from the GENCODE v.19 database using the RepeatMasker program. They were divided into six major types, based on their genomic structure. More novel RE-derived miRNAs were confirmed than identified as RE-derived miRNAs. In conclusion, many miRNAs have not yet been identified, most of which are derived from REs.

• 대한지리학회:학술대회논문집
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• 대한지리학회 2003년도 춘계학술대회
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• pp.83-86
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• 2003

Hot environment can cause unseen economic loss by slowdown of human activities owing to the accumulation of heat stress. The attack of a strong heat wave to the highly populated urban areas was even evaluated to result in the more fatal damages than any other natural disaster such as flooding or blizzards (Changnon et al, 1996). (omitted)

• 한국독성학회:학술대회논문집
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• 한국독성학회 2001년도 International Symposium on Dietary and Medicinal Antimutgens and Anticarcinogens
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• pp.39-40
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• 2001

The inhibition of carcinogenesis by tea has been demonstrated in animal models on many organ sites. These include cancers of the skin, lung, oral cavity, esophagus, stomach, liver, small intestine, pancreas, colon, bladder, prostate, and mammary glands. The most well studied sites are skin and lung.(omitted)

• 한국작물학회:학술대회논문집
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• 한국작물학회 1998년도 춘계 학술대회지
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• pp.71-72
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• 1998

• 한국지하수토양환경학회:학술대회논문집
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• 한국지하수토양환경학회 2004년도 총회 및 춘계학술발표회
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• pp.5-11
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• 2004

본 연구에서는 우리나라의 토양오염부지관련 정보관리체계의 문제점을 파악하고, 미국의 연방과 뉴저지 주정부의 토양오염부지 정보관리체계의 사례연구를 통해 시사점을 도출하였다. 우리나라 현행 법ㆍ제도상에는 오염토양부지에 대한 정보들을 어떻게 관리할 것인가에 대한 전반적인 가이드라인이 없고, 발견, 정밀조사, 복원과 관련된 일부 조항에만 자료관리에 관한 규정이 분산되어 있다. 반면 미연방과 뉴저지주는 관련 법률에 자료의 체계적인 관리에 대한 근거 조항과 세부규정 및 관련 지침서를 제시하고 있다. 또한 복원사업에 있어서 주민의 참여와 정보공개에 대한 제도를 수립하고 있다. 이러한 법률에 따라 관리되는 자료들을 통합하는 정보관리시스템을 구축하여 일반인에게 인터넷서비스를 실시하고 있다.

• KIEE International Transactions on Power Engineering
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• 제4A권3호
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• pp.159-166
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• 2004

Forecasting prices in electricity markets is critical for consumers and producers in planning their operations and managing their price risk. We utilize the generalized autoregressive conditionally heteroskedastic (GARCH) method to forecast the electricity prices in two regions of New York： New York City and Central New York State. We contrast the one-day forecasts of the GARCH against techniques such as dynamic regression, transfer function models, and exponential smoothing. We also examine the effect on our forecasting of omitting some of the extreme values in the electricity prices. We show that accounting for the extreme values and the heteroskedactic variance in the electricity price time-series can significantly improve the accuracy of the forecasting. Additionally, we document the higher volatility in New York City electricity prices. Differences in volatility between regions are important in the pricing of electricity options and for analyzing market performance.

• 비교교육연구
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• 제28권3호
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• pp.333-354
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• 2018

본 연구는 우리나라 누리과정의 수학교육과 미국의 CCSS 및 뉴저지 주 Preschool Standards 수학교육과정을 비교 분석함으로써 누리과정 수학교육내용에 필요한 것이 무엇인지 시사점을 도출하여 향후 누리과정 수학교육의 개정 및 발전을 위한 기초자료를 제공하고자 하였다. 분석준거는 선행연구를 참고하여 목표, 내용범주 및 내용, 세부 내용 및 특징으로 정하였다. 그 결과 첫째, 우리나라 누리과정은 수학적 지식을 구성하고 이를 바탕으로 일상의 문제를 해결하는 능력을 강조한 포괄적 목표를 제시한 반면 미국의 수학교육 목표는 유아들이 습득해야 할 수학적 내용 및 개념을 중심으로 구체적으로 제시하고 있다. 둘째, 한국과 미국의 내용범주 및 내용은 두 나라 모두 수와연산의 기초, 측정, 공간 및 도형 등에 대한 것을 다루고 있다. 우리나라 누리과정 수학교육은 자연탐구영역에서 1개의 내용범주를 제시하고 있고, 미국 CCSS의 내용범주는 주요 수학적 개념 5개이며 Preschool Standards 내용범주는 4개로 제시 되어있다. 셋째, 두 나라 유아수학교육은 유 초 연계를 포함한 연령 및 학년별 연계성과 기술방법에 차이점이 있다. 이를 통해 누리과정 유아수학교육 내용 개선 시 고려해야 할 점을 살펴보았다.