• 제목/요약/키워드: green care

검색결과 139건 처리시간 0.025초

석탄가스 고압연소시 배기가스 배출특성에 관한 실험적 연구 (The experimental study on the emission characteristics of the coal gas in the condition of high pressure combustion)

  • 홍성주;이민철;김기태
    • 한국신재생에너지학회:학술대회논문집
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    • 한국신재생에너지학회 2010년도 추계학술대회 초록집
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    • pp.134-134
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    • 2010
  • Recently, the interest of the study about IGCC(Integrated Gasification Combined Cycle), one of New & Renewable Energy technologies, bas been increased due to the United Nations Framework Convention on Climate Change, the Low Carbon Green Growth policy, etc. Also, with this interest of IGCC, the study on the gas turbine utilizing the synthetic gas is performing actively. In the study of the gas turbine characteristic, the power performance and the combustion efficiency are mainly discussed and also the concern about the exhaust gas is being taken care of due to the increasing awareness of the environment. With this, we would like to go over the exhaust gas emission characteristic by the synthetic gas inflow in this test. In order to conduct such a test, we constructed a synthetic gas supplying system to supply the synthetic gases ($H_2$: hydrogen, $N_2$: nitrogen, CO: carbon monoxide, $CO_2$: carbon dioxide, and $H_2O$: steam) quantitatively and this combustion test was conducted by controlling the supplied synthetic gases artificially. The concentration of the exhaust gases appeared variously depending on the differences of the inflow nitrogen amount and the steam amount, whether or not the carbon dioxide flow in and so on. The results of the test can be able to be utilized for the IGCC study by understanding the exhaust gas emission characteristic of the coal gas turbine by synthetic gas composition.

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Epidemiological Investigations to Optimize the Management of Pepper Anthracnose

  • Ahn, Mun-Il;Yun, Sung-Chul
    • The Plant Pathology Journal
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    • 제25권3호
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    • pp.213-219
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    • 2009
  • An understanding of anthracnose (Colletotrichum acutatum) infections, including the infection of flowers and latent infection early in the season, is necessary to achieve successful control by means of properly timed spraying with a curative fungicide. In the present study, latent anthracnose infection of chili was investigated under greenhouse and field conditions in 2007-2008. Flowers on greenhouse-grown seedlings were infected and 11% of the young fruits subsequently showed symptoms of anthracnose. Apparently healthy-looking green peppers obtained from unsprayed fields or an organic market also exhibited symptoms of anthracnose after 4 days of incubation under high moisture conditions at $25^{\circ}C$; less than 1% of the peppers were found to be latently infected. To determine the natural timing of infection in the field, 3,200 fruits were wrapped in paper bags and then selectively unwrapped and examined for signs of infection. Field experiments were conducted at Suwon (cvs. Yokkang, Manitta, Olympic) and Asan (cv. Chunhasangsa) in 2008. The 7- to 10-day wrapping periods were July 25-31, July 31-August 7, August 7-15, August 15-24, and August 24-September 3. The 1-to 2-month wrapping periods were from July 4, July 31, and August 15 until harvest (Sept. 3). The controls consisted of 1,712 field-grown non-wrapped fruits. The rates of infection on the various cultivars were Yokkang 55%, Manitta 37%, Olympic 55%, and Chunhasangsa 20%. A distinct period in which anthracnose infection suddenly increased could not be identified; however, attempts to guess the approximate timing of field infection showed that 0-39% of the plants had latent infections, while depending on the cultivar, 8-14% of the plants examined in August and 4-13.5% of the those examined during May-July showed symptoms of infection. Delaying fungicide spraying by 24 and 48 h after artificial infection decreased the rates of infection by 10% and 25-30%, respectively. Chemical control of anthracnose based on a forecasting model should be considered starting from the transplanting stage, with spraying within a day after warning and care being taken not to latently infect apparently healthy pepper fruits.

한복배색에 대한 한미여대생의 선호도 연구 -빨강저고리의 톤변화를 중심으로- (A Study in the Preference of Coloration in Traditional Korean Dress of Korean and American Students - On the Tone Variation of Red Jacket -)

  • 강경자;최수경
    • 한국생활과학회지
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    • 제14권4호
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    • pp.631-643
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    • 2005
  • The purpose of this research is to compare, according to tone variation of a red jacket, the preference of female college students from Korea and the U.S. for coloration in the traditional Korean dress. The results of the research can be summarized as follows: As to a vivid skirt according to tone variation of red jacket, students of both countries showed the different view in the preference for coloration of vivid red skirt and vivid. dark red jacket, and vivid orange skirt and dull red jacket, and vivid yellow skirt and light dull red jacket, and vivid violet skirt and dull red jacket. As to the light skirt according to tone variation of red jacket, student of both countries showed the different view in the preference for coloration of light red skirt and light red jacket, and light orange skirt and light red jacket. As to the dull skirt according to tone variation of red jacket, student of both countries showed the different view in the preference for coloration of dull red skirt and vivid light dull dark red jacket, and dull yellow skirt and light dull red jacket, and dull yellow skirt and light dull red jacket, and dull green skirt and dull red jacket, and dull violet skirt and vivid light dull dark red jacket. As to the dark skirt according to tone variation of red jacket, student of both countries showed the different view in the preference for coloration of dark red skirt and dull dark red jacket, and dark orange skirt and vivid light dull red jacket, and dark yellow skirt and dull red jacket. As to the neutral skirt according to tone variation of red jacket, student of both countries showed the different view in the preference for coloration of white skirt and vivid red jacket, and dark gray skirt and light red jacket.

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측광 후처리 가공에 의한 유연 광직물의 발광 효과 (Luminescence effects of POF-based Flexible Textile by post-treated Optic illuminate)

  • 양은경;이주현
    • 감성과학
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    • 제14권4호
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    • pp.495-502
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    • 2011
  • 광섬유 직물 기반 스마트 의류가 국, 내외로 개발되고 있는 실정이며, 기존의 일반적인 광섬유는 직물화가 어렵고 내구성, 내수성이 결여되어 세탁 및 유지 관리의 한계로 인해 에칭된 광섬유사의 표면에 합성수지를 코팅 처리하는 '내수성 광섬유사 가공 기술'이 최근 개발 되었다. 본 연구에서는 제직 후 측광가공 된 유연 광섬유 직물을 대상으로 광섬유사 길이에 따른 특성과 광원 색채에 따른 발광 특성을 분석, 평가하여 디지털 컬러 의류의 적용 적합성을 파악하고자 한다. 이를 위하여 광섬유사 길이에 따른 총 4가지 유연 광섬유 직물시료를 제직하여, 이를 대상으로 광원 색채에 따른 유연 광섬유 직물의 휘도, 물리적 가시도, 지각적 가시도를 측정함으로써 발광특성을 분석하였다. 그 결과, 10cm인 유연 광섬유 직물과 녹색 광원을 사용한 경우가 최대가시거리 100m로 디지털 컬러 의류 즉, 안전보호 기능의 산악복 적용에 가장 적합한 발광효과를 보이는 것으로 나타났다. 그러므로 본 연구의 결과는 앞으로 유연 광섬유 직물 적용 의류 개발과 관련된 후속 연구의 자료로서 활용될 수 있을 것으로 기대된다.

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중학생의 가족식사 횟수에 따른 식행동, 식품섭취 및 삶의 만족도 (The Relationships of Dietary Behavior, Food Intake, and Life Satisfaction with Family Meal Frequency in Middle School Students)

  • 권정은;박희진;임현숙;천종희
    • 한국식생활문화학회지
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    • 제28권3호
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    • pp.272-281
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    • 2013
  • To study the importance of family meals in adolescents, 251 middle school students were surveyed through a questionnaire on their family meal patterns, dietary behaviors, food intake, and life satisfaction. The family meals were defined as "meals with all family members living together" by 62.2% of the students. For the frequency of family meals, 42.2% of the students replied having family meals "More than once a day". A common reason for the difficulty in having a family meal was a "lack of time" (73.3% of the students). Students tended to respond that they would be most fond in having meals with entire family members with traditional Korean food. Having more frequent family meals was found to benefit both individual and familial dietary behavior. In terms of food intake according to the frequency of family meals, the group having frequent family meals consumed significantly more rice, tofu, legumes, meats, fishes, eggs, green vegetables, seaweeds, fruits, milk, and milk products. This indicates that students can achieve a balanced diet through family meals. In terms of emotional status, the group having more frequent family meals showed a higher satisfaction with their daily life, health, nutritional status, and care from their relatives. In terms of personal mental status, the group having more frequent family meals was also found to be more effective at controlling undesirable emotions such as loneliness, indignation, and lethargy. As a result of this study, students in the group having more frequent family meals were found to have a positive dietary behavior, a balanced nutrition, a higher life satisfaction, and a more stable mental status. This result is useful as nutritional and educational information in schools to impress upon the public the importance of family meals for adolescents.

JAXA'S EARTH OBSERVING PROGRAM

  • Shimoda, Haruhisa
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2006년도 Proceedings of ISRS 2006 PORSEC Volume I
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    • pp.7-10
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    • 2006
  • Four programs, i.e. TRMM, ADEOS2, ASTER, and ALOS are going on in Japanese Earth Observation programs. TRMM and ASTER are operating well, and TRMM operation will be continued to 2009. ADEOS2 was failed, but AMSR-E on Aqua is operating. ALOS (Advanced Land Observing Satellite) was successfully launched on $24^{th}$ Jan. 2006. ALOS carries three instruments, i.e., PRISM (Panchromatic Remote Sensing Instrument for Stereo Mapping), AVNIR-2 (Advanced Visible and Near Infrared Radiometer), and PALSAR (Phased Array L band Synthetic Aperture Radar). PRISM is a 3 line panchromatic push broom scanner with 2.5m IFOV. AVNIR-2 is a 4 channel multi spectral scanner with 10m IFOV. PALSAR is a full polarimetric active phased array SAR. PALSAR has many observation modes including full polarimetric mode and scan SAR mode. After the unfortunate accident of ADEOS2, JAXA still have plans of Earth observation programs. Next generation satellites will be launched in 2008-2012 timeframe. They are GOSAT (Greenhouse Gas Observation Satellite), GCOM-W and GCOM-C (ADEOS-2 follow on), and GPM (Global Precipitation Mission) core satellite. GOSAT will carry 2 instruments, i.e. a green house gas sensor and a cloud/aerosol imager. The main sensor is a Fourier transform spectrometer (FTS) and covers 0.76 to 15 ${\mu}m$ region with 0.2 to 0.5 $cm^{-1}$ resolution. GPM is a joint project with NASA and will carry two instruments. JAXA will develop DPR (Dual frequency Precipitation Radar) which is a follow on of PR on TRMM. Another project is EarthCare. It is a joint project with ESA and JAXA is going to provide CPR (Cloud Profiling Radar). Discussions on future Earth Observation programs have been started including discussions on ALOS F/O.

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Study on the reorganization of the legal system for an integrated forestry business

  • Park, Chang-Won;Lee, Bo-Hwi;Joung, Da-Wou;Park, Bum-Jin;Lee, Joon-Woo;Kim, Se-Bin;Koo, Seung-Mo
    • 농업과학연구
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    • 제46권4호
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    • pp.755-768
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    • 2019
  • The forestry development policies and projects in Korea have been implemented under various related acts. These acts include the Framework Act on the National Land and Framework Act on Forestry enacted by each administration. However, there are some limitations to encourage a variety of mountain villages and forestry development policies due to duplication and overlap between the relevant acts. Nowadays, the fields of local development have evolved and become integrated not only by infrastructures but also in various fields such as multi-functional industries including tourism, green care, cultural welfare, etc. Therefore, the current legal system may not effectively accept and support various mountain village development policies and projects. This study tried to determine the necessity of reorganizing th-e related legal system through a field survey of planners, residents and analysts regarding the correlation between legal systems and projects. For these reasons, this study tried to determine the problems of the current legal system and then, suggested alternative methods related to the legal system for integrated rural development. The scope of the study is as follows: 1) correlation analysis between relevant laws and development projects and 2) field survey to determine the legitimacy and validity for the reorganization of the legal system.

스마트폰과 연동되는 M2M 기반 스마트 팩토리 관리시스템의 설계 및 구현 (Design and Implementation of M2M-based Smart Factory Management Systems that controls with Smart Phone)

  • 박병섭
    • 한국컴퓨터정보학회논문지
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    • 제16권4호
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    • pp.189-196
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    • 2011
  • 센서 네트워크기술과 모바일 장치가 연동된 애플리케이션이 사용된 연구는 주로 기후나 온도 변화, 재해 등의 환경 모니터링 관련 분야와 모바일 헬스 케어 관련 애플리케이션이 최근의 주된 이슈 사항이 되어 왔다. 본 논문에서는 안드로이드 폰으로 제어가 가능하고, 그린 스마트 팩토리 영역을 효율적으로 모니터링하고 관리할 수 있는 M2M 서비스 기반 스마트 팩토리 관리 시스템(SFMS: Smart Factory Management System)을 제안한다. 제안된 시스템은 TinyOS 기반의 IEEE 802.15.4 표준 스택을 적용하여 스마트 센서 네트워크를 구성하며, 제안한 시스템 구조의 기능성 검증을 위하여 온도/습도, 도어, 적외선(PIR), 카메라 센서로 센서 망을 구성하여 센싱 이벤트 요청 및 제공 테스트를 수행하였다.

In Vitro Effect of DFC-2 on Mycolic Acid Biosynthesis in Mycobacterium tuberculosis

  • Kim, Sukyung;Seo, Hoonhee;Mahmud, Hafij Al;Islam, Md Imtiazul;Kim, Yong-Sik;Lyu, Jiwon;Nam, Kung-Woo;Lee, Byung-Eui;Lee, Kee-In;Song, Ho-Yeon
    • Journal of Microbiology and Biotechnology
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    • 제27권11호
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    • pp.1932-1941
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    • 2017
  • DFC-2, a methyl 5-[2-(dimethylamino)ethoxy]-7,12-dioxo-7,12-dihydrodinaphtho[1,2-b:2',3'-d]furan-6-carboxylate, is reported to have antitubercular effects against Mycobacterium tuberculosis. At concentrations ranging from 0.19 to $0.39{\mu}g/ml$, DFC-2 inhibited both drugusceptible and -resistant strains of M. tuberculosis. Microarray analyses were employed to gain insights into the molecular mechanisms of DFC-2's action in M. tuberculosis. The most affected functional gene category was "lipid biosynthesis," which is involved in mycolic acid synthesis. The decrease in transcription of genes related to mycolic acid synthesis was confirmed by RT-PCR. Furthermore, we found that DFC-2 triggered a reduction in mycolic acid levels, showing a similar pattern to that of mycolic acid synthesis inhibitor isoniazid. These results may explain how this compound kills mycobacteria efficiently by inhibiting mycolic acid synthesis.

음양학설 해석을 통한 차와 양생 (Tea and Curing through Analysis of Yin-Yang Theory)

  • 김명주
    • 산업융합연구
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    • 제18권1호
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    • pp.97-107
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    • 2020
  • 예로부터 "갈증이 나면 물을 마셔 해소하고, 번뇌와 근심걱정은 술을 마셔 지워버리고, 피로회복과 정신을 맑게 하려면 차를 마신다"라고 하였다. 이처럼 차는 물과 술보다 오래 마실수록 몸과 마음에 아주 좋은 대자연이 준 귀한 진다(眞茶)이며, 사계절의 기후변화 특징에 따른 양생차를 마심으로써 건강을 유지하게 해준다. 이처럼 차에는 고대인들의 철학사상인 음양의 이치가 숨겨져 있기에 어떤 차를 어떻게 우려 마셔야 음양의 조화를 이루어 양생에 도움이 되는지를 옛 선인들은 알고 있었다. 차의 성분변화에 영향 주는 인자는 천지인의 복합적인 상호작용이 중요하며 그 중에서 차를 다루는 사람의 마음정신이 가장 중요하다. 차는 인간과 자연을 이어주는 교량역활의 천연 양생음료이다.