• 제목/요약/키워드: Bed plant

검색결과 472건 처리시간 0.029초

Seasonal Occurrence and Control of Silkworm Diseases, Grasserie, Flacherie and Muscardine and Insect Pest, Uzi fly in Andhra Pradesh, India

  • Reddy, Bontha Kasi;Rao, Jemmy Venkata Krishna
    • International Journal of Industrial Entomology and Biomaterials
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    • 제18권2호
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    • pp.57-61
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    • 2009
  • Three years($2004{\sim}2007$) survey was conducted on the incidence of silkworm diseases namely, Grasserie, Flacherie, Muscardine and Uzi fly, a silkworm pest with 150 sericulture farmers in the districts of Chittoor and Anantapur in Andhra Pradesh. The data revealed that grasserie and flacherie incidence were maximum in summer season and minimum in winter season whereas muscardine was observed high in winter season in both the areas and rarely in rainy season in Chittoor and Anantapur districts. An improvement of 11.16 and 7.6 kg cocoons/100 dfls were recorded in the batches of PM xCSR2 Diseases free layings(Dfls) reared in rearing houses disinfected with 2% bleaching powder and Ankush, a plant based bed disinfectant applied as per schedule, respectively. The Uzi fly incidence was suppressed by 61.02% in batches where the integrated package was adopted for control of Uzi fly infestation.

Spherical Granule Production from Micronized Saltwort (Salicornia herbacea) Powder as Salt Substitute

  • Shin, Myung-Gon;Lee, Gyu-Hee
    • Preventive Nutrition and Food Science
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    • 제18권1호
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    • pp.60-66
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    • 2013
  • The whole saltwort plant (Salicornia herbacea) was micronized to develop the table salt substitute. The micronized powder was mixed with distilled water and made into a spherical granule by using the fluid-bed coater (SGMPDW). The SGMPDW had superior flowability to powder; however, it had low dispersibility. To increase the dispersibility of SGMPDW, the micronized powder was mixed with the solution, which contained various soluble solid contents of saltwort aqueous extract (SAE), and made into a spherical granule (SGMPSAE). The SGMPSAE prepared with the higher percentages of solid content of SAE showed improved dispersibility in water and an increase in salty taste. The SGMPSAE prepared with 10% SAE was shown to possess the best physicochemical properties and its relative saltiness compared to NaCl (0.39). In conclusion, SGMPSAEs can be used as a table salt substitute and a functional food material with enhanced absorptivity and convenience.

Biofilter를 이용한 축산 ${\cdot}$ 분뇨 중의 암모니아와 황화수소의 동시 제거

  • 강염석;황재웅;장석진;박성훈
    • 한국생물공학회:학술대회논문집
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    • 한국생물공학회 2000년도 추계학술발표대회 및 bio-venture fair
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    • pp.516-519
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    • 2000
  • 암모니아와 황화수소를 동시 제거하기 위한 biofilter가 연구되었다. 암모니아 제거의 경우 공탑속도 30초에서 유입 암모니아 농도 80 ppmv까지 100 %의 제거율을 달성하였다. 암모니아와 황화수소의 동시 제거의 경우 공탑속도 30초에서 유입 황화수소 농도 40 ppmv와 암모니아 농도 80 ppmv가 제거율 100 %로 처리되었고 이 경우 pH의 변화가 암모니아의 산화에 매우 큰 영향을 미침을 알 수 있었다.

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순환 유동상 연소로 설계 인자 및 하부 연소율에 따른 설계 영향 평가 (Design Impact evaluation through CFB Boiler Design Parameter and Lower Furnace Fraction of Combustion Heat)

  • 양종인;김태현;최상민
    • 한국연소학회:학술대회논문집
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    • 한국연소학회 2012년도 제44회 KOSCO SYMPOSIUM 초록집
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    • pp.41-42
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    • 2012
  • Circulating fludized bed(CFB) furnace which can use a variety of low-grade fuels because of high heat capacity and good mixing characteristic in its furnace have turned out to be effective system. There is no many research to design CFB boiler in korea. thus, we feel necessity to research design method. So far accurate hydrodynamics and combustion mechanism information in CFB furnace has been lacked. Therefore, design method that derives design parameter is being made. so, this study is aimed to derive design parameters of CFB furnace from heat and mass balance by using existing plant data.

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복잡반응에 대한 복극성 고정층 전극반응기 해석 (A study on the analysis of bipolar packed-bed electrode reactor for complex reactions)

  • 김학준
    • 전기화학회지
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    • 제2권1호
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    • pp.13-16
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    • 1999
  • 복극성 전극반응기에서 복잡반응이 일어날 때 반응기 모델링하여 농도경시변화로 부터 전류값을 계산하였다. 이를 실험한 전류와 비교한 결과 잘 일치하였다. 본 논문에서 제안된 모델링이 파이로트 장치 설계에 유용하게 운용될 것이다.

유동상 Media를 이용한 기존하수처리장의 Retrofitting 가능성 평가 (Evaluation on the Possibility of a Retrofitting Treatment Using Moving Media of Existing Wastewater Treatment)

  • 고태호;박운지;이찬기
    • 산업기술연구
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    • 제25권A호
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    • pp.133-139
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    • 2005
  • In this study, as MBBR(Moving Bed Biofilm Reactor) process using waste tire media is suggested for retrofitting with advanced wastewater treatment and the removal property of organic matter and nutrient and the capacity of media are evaluated through long-term operation with pilot plant following seasons, the application capacity of retrofitting with MBBR process to a existing wastewater treatment is studied. As a result of the long-term operation of the process, it is proved that there is no loss and abrasion of media, and also that it is possible to secure the sufficient attached bio-mass. The values of organic matter and nutrient in effluent are suitable for the strict discharged water quality standards in every season including winter.

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입자 핵연료의 SiC/C 다층 도포층의 미세조직 및 극미세 경도 평가 (Microstructure and Nano-hardness of SiC/C Multi-coated Layers on a Particulate Nuclear Fuel)

  • 최용
    • 한국표면공학회지
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    • 제52권6호
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    • pp.321-325
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    • 2019
  • Triso-type coating layers of silicon carbide and graphite on UO2 paticulate nuclear fuel were prepared by using fluidized bed type chemical vapor deposition and self-propagating high temperature synthesis methods to make a coated nuclear fuel of a power plant for hydrogen mass-production. The source and carrier gases were the mixture of methyltrichlorosilane and propane, and inert argon. Chemical analysis and microstructure observation showed that the coated layers were inner graphite, middle silicon carbide and outer graphite. The elastic modulus and nano-hardness of the silicon carbide layer were 503 [GPa] and 36 [GPa], respectively.

대관령 풍력실증단지의 동기/유도발전기 전력품질 분석 (The Analysis of Power Quality for the Synchro/Asynchro Generation System in Dae kwan Ryung Actual Wind Farm)

  • 김현한;정종찬;기우봉;이규삼;김광호
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2007년도 제38회 하계학술대회
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    • pp.770-771
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    • 2007
  • Wind power plant is based on the wind energy so the active power is frequently changed and connected to grid according with wind condition. These characteristics are bed effect to distribution line. On this reserch, we want to analyze the quality of electric power synchro/asynchronous generation system in Dae Kwan Ryung wind farm. The contents of analysis are active/reactive power variation and total demand distortion and transiency and sag/swell phenomena. we hope this research can contribute to the power quality improvement.

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해안구조물 주위의 표사이동예측 (The Prediction of Littoral Transport in the Vicinity of Coastal Structures)

  • 김규한;이봉희
    • 물과 미래
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    • 제20권1호
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    • pp.63-72
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    • 1987
  • 본 연구는 표이동의 예측방법중 이동상수리모형실험방법을 위주로 그 상이예측 및 실험순서의 체계확립에 중점을 두고 실증적인 문제로서 원자력발전소 9,10 기호 해상구조물 주위의 표사이동예측을 시도해 보았으며 아울러 그에 따른 취수구의 매몰방지대책에 관해서도 고찰해 보았다. 실험결과 취수구의 매몰방지대책으로는 이안유장벽, 돌제공법 중 비교적 이안제공법이 취수구매몰방지에 도움을 주고 구조물 안정에도 기여함을 발견하였다.

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흡연자에 대한 호기 중 일산화탄소 농도 연구 (Study on the Concentration of Carbon Monoxide in Exhaled Breath for Smokers)

  • 김윤영;구진숙
    • 동의생리병리학회지
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    • 제35권6호
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    • pp.249-254
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    • 2021
  • The aim of this study was to raise awareness about smoking and to facilitate the induction of smoking cessation. The participants were 49 patients who showed intention to participate in the test. The participants who had done a questionnaire, were asked to quit smoking for about an hour. After taking the breath deeply, they stopped for 20 seconds and measured breathing slowly. Carbon monoxide in the exhalation was higher when the daily smoking amount was higher and the smoking duration was longer, but not significant. In the case of smoking after meal and smoking in bed in the morning, the carbon monoxide level was significantly higher than that in the case of not smoking. It was significantly associated with skin allergic symptoms. The usual exercise habits, drinking and the respiratory disease were not correlated with carbon monoxide levels.