• 제목/요약/키워드: TAO system

검색결과 213건 처리시간 0.029초

실시간 운영체제 VxWorks 상에서 통신 미들웨어 TAO의 실시간성 지원에 대한 연구 (A Research to support Real-time of TAO on VxWorks Real-time Operating System)

  • 임재석;손재열;이용태;이철훈
    • 한국콘텐츠학회:학술대회논문집
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    • 한국콘텐츠학회 2009년도 춘계 종합학술대회 논문집
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    • pp.845-850
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    • 2009
  • 분산 환경에서 이기종 시스템 간의 독립적이고 표준화된 환경을 지원하기 위해 RT-CORBA(Real-Time Common Object Request Broker Architecture) 기반의 오픈소스 TAO(The ACE ORB) 통신 미들웨어에 대한 연구가 활발해지고 있다. 실시간성 측면에서 TAO는 Windows나 Linux와 같은 범용 운영체제에서는 실시간성을 지원하지 않으며, VxWorks, LynxOS 등과 같은 실시간 운영체제에 의존하여 실시간성을 지원한다. 이에 본 논문에서는 실시간 운영체제인 VxWorks에 TAO 통신 미들웨어를 이식함으로써 TAO가 쓰레드 레벨의 실시간성을 지원할 수 있는 환경을 구축한다. 또한 TAO를 탑재한 범용 운영체제 Windows 및 Linux와의 통신을 통해 VxWorks로의 TAO 이식을 검증한다.

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고온 호기성 산화 시스템의 슬러지로부터 펠렛 비료의 생산과 Chinese cabbage의 생육 및 토양 특성에 대한 영향 (Production of Pellet Fertilizer from the Sludge of Thermophilic Aerobic Oxidation System End Its Effects on the Growth of Chinese cabbage and Soil Properties)

  • 이원일;;이명규
    • 한국축산시설환경학회지
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    • 제10권2호
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    • pp.101-110
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    • 2004
  • 고온호기성발효장치(TAO system)로 발효 처리한 양돈분뇨고형물을 톱밥과 왕겨로 혼합한 뒤 성형건조장치를 이용하여 펠렛 비료를 제조하였다. 제조된 펠렛 비료(TAO-PF)의 비료이용성을 검토하기 위하여 배추를 이용하여 포장시험을 실시하였으며, 수확 후 생육량 및 토양의 생물, 이화학적 변화를 분석하였다. 생육실험은 펠렛 비료(TAO-PF)를 포함하여 시판 상토(Bed soil), 발효고형물(TAO-S), 화학비료(NPK), 무비료(대조구)로 나누어 실험하였다. 제조된 발효펠렛(TAO-PF)의 상온저장성은 미생물의 증식경향으로 보아 수분 함량이 $18\%,\;25\%$ 처리구보다는 $12\%$ 처리구가 적절한 것으로 판단되었다. 배추를 이용한 각 처리구에서의 생육실험결과, 토양세균의 변화는 TAO-PF 처리구가 NPK, 무비료구 보다 처리기간중 증식하는 경향을 보였으며, 특히 방선균의 증가와 사상균의 감소현상은 NPK, 무비료 처리 에 비해 TAO-S, TAO-PF 처리구에서 현저하여 발효고형물의 토양시비가 토양생물상 변화에 매우 효과적인 것으로 나타났다. 본 생육실험을 통해 배추의 구고, 구폭, 엽수 등으로 보아 TAO-S, TAO-PF 처리구는 각각 화학비료, 시판상토 처리구를 대체 할 수 있을 것으로 판단된다.

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Valuable Organic Liquid Fertilizer Manufacturing through $TAO^{TM}$ Process for Swine Manure Treatment

  • Lee, Myung-Gyu;Cha, Gi-Cheol
    • 한국축산시설환경학회지
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    • 제9권1호
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    • pp.45-56
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    • 2003
  • $TAO^{TM}$ System is an auto-heated thermophilic aerated digestion process using a proprietary microbe called as a Phototropic Bacteria (PTB). High metabolic activity results in heat generation, which enables to produce a pathogen-free and digested liquid fertilizer at short retention times. TAO$^{TM}$ system has been developed to reduce a manure volume and convert into the liquid fertilizer using swine manure since 1992. About 100 units have been installed and operated in Korean swine farms so far. TAO$^{TM}$ system consists of a reactor vessel and ejector-type aeration pumps and foam removers. The swine slurry manure enters into vessel with PTB and is mixed and aerated. The process is operated at detention times from 2 to 4 days and temperature of 55 to $65^{\circ}C$. Foams are occurred and broken down by foam removers to evaporate water contents. Generally, at least 30% of water content is evaporated, 99% of volatile fatty acids caused an odor are removed and pathogen destruction is excellent with fecal coliform, rotavirus and salmonella below detection limits. The effluent from TAO$^{TM}$ system, called as the "TAO EFFLUX", is screened and has superb properties as a fertilizer. Normally N-P-K contents of screened TAO Efflux are 4.7 g/L, 0.375 g/L and 2.8 g/L respectively. The fertilizer effect of TAO EFFLUX compared to chemical fertilizer has been demonstrated and studied with various crops such as rice, potato, cabbage, pumpkin, green pepper, parsley, cucumber and apple. Generally it has better fertilizer effects and excellent soil fertility improvement effects. Moreover, the TAO EFFLUX is concentrated through membrane technology without fouling problems for a cost saving of long distance transportation and a commercialization (crop nutrient commodity) to a gardening market, for example.

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급속액상부숙기술(TAO system)을 이용한 양돈분뇨의 연속처리 (Continuous Treatment of Piggery Slurry using the Thermophilic Aerobic Oxidation (TAO) System)

  • 이원일;이명규
    • 한국축산시설환경학회지
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    • 제6권3호
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    • pp.169-174
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    • 2000
  • TAO system was applied to treatment of piiggery slurry. In the experiments, the volume of influx was differentiated in four types. The features of operation, evaporation rate, and efficiency of successive treatment were drawn. The results are; 1. During the operation, the inside temperature was maintained at over $60^{\circ}C$ with the highest $70.2^{\circ}C$. 2. The evaporation rate of influx volume was 31.4%. And the evaporation volume of per square meter was $108{\;}\ell/\textrm{m}^2$; slightly different from $120{\;}\ell/\textrm{m}^2$ of batch type. 3. The VFAs was decreased by 95% (from $1,538lmg/{\ell}$ in influx to $72.9mg/{\ell}$ in Efflux). Thus, successive operation of TAO system is considered to be possible.

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급속액상부숙기술(TAO system)을 이용한 가축분뇨 슬러리의 질소.인 저감기술 (Reducing Technique for Nitrogen and Phosphorus in Piggery Slurry by the Thermophilic Aerobic Oxidation(TAO) System)

  • 이원일;이명규
    • 한국축산시설환경학회지
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    • 제6권3호
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    • pp.185-190
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    • 2000
  • 돈분뇨에 함유된 질소.인의 부하저감과 액비살포면적 감소에 대하여 급속액상부숙기술 반응기(TAO system)과 28mesh, 200mesh의 막을 가진 고액분리기를 적용하여 연구한 결과는 다음과 같다. 1. 농가에서 발생하는 분뇨 $4.6m^3/day$에 함유된 질소와 인의 양은 22.5kg.N/day($4,893mg/{\ell}$), 7.32kg.P/day($1,592mg/{\ell}$)이었따. 2. 감량화 단계에서는 질소와 인이 각각 12.6kg.N/day($4,862mg/{\ell}$), 3.85kg.P/day$(1,397mg/{\ell}$)로 46.0%, 34.0% 감소하였다. 3. 고액분리단계에서는 질소와 인이 각각 12.0kg. N/day($5,000mg/{\ell}$), 2.2kg.P/day($929mg/{\ell}$)로 일일 발생량이 46.6%, 69.8% 감소하였다. 4. 질소시비량을 기준으로 처리 전.후의 액비 살포면적은 논의 경우, 74.7ha/y에서 39.0ha/y, 밭의 경우, 63.2ha/y에서 33.0ha/y로 감소하였다.

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축산분뇨 처리에 적용된 급속액상부숙기술(TAO system)의 운전특성과 운전조건 (Operation Condition and Characteristics for Treatment of Piggery Slurry using Thermophilic Aerobic Oxidation System)

  • 이명규;이원일
    • 한국축산시설환경학회지
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    • 제6권3호
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    • pp.161-168
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    • 2000
  • The study exploited TAO system for the treatment of piggery slurry and aimed to draw characteristics and conditions of the reactor by differentiating the number of air input pump and foam cutter. The results are: 1. Under different operation condition, Run-3 with three air input pumps and four foam cutters showed the highest efficiency in the change of water level and temperature; 40-70cm and 45-55$^{\circ}C$, respectively. 2. Evaporation volume in Run-3 was the highest; 55.5l/$m^2$ . day in Run-1, 75.0/$m^2$ . day in Run-2, and 120.3/$m^2$ . day in Run-3. 3. Throughout the experimental period, temperature inside the reactor was maintained at around 5$0^{\circ}C$, regardless of seasonal temperature changes.

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2010년 4월 TAO 해양관측부이 시스템에 관한 탐사보고 (Cruise Report on TAO Real-time Monitoring Buoy System in the Pacific Ocean in April 2010)

  • 김동국;김선정;이하웅
    • Ocean and Polar Research
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    • 제33권4호
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    • pp.507-516
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    • 2011
  • Tropical Atmosphere Ocean/Triangle Trans-Ocean Buoy Network (TAO/TRITON) Array is the series of buoys for the international ocean research project, which is mostly supported by National Ocean and Atmosphere Administration (NOAA) and Japan Agency for Marine-Earth Science and Technology (JAMSTEC). We can determine the effect of the equatorial and Pacific Ocean conditions on global climate change from buoy array measurement data. The TAO/TRITON array comprises around 70 measurement buoys from $10^{\circ}$ north to $10^{\circ}$ south in the tropics and between Galpagos and New Guinea. NOAA maintains ATLAS buoys in the central and eastern Pacific between $165^{\circ}E$ and $95^{\circ}W$, and JAMSTEC maintains the 12 buoys in the western Pacific along $137^{\circ}E$, $147^{\circ}E$, and $156^{\circ}E$. The KA-10-03 cruise excursion provided us with a good opportunity to obtain knowledge on oceanic buoy operation and maintenance. Further, we learned advanced techniques and know-how on buoy operation and maintenance. Once we are confident with our buoy management and maintenance techniques, both KORDI and NOAA technicians may be able to help each other when needed and share available resources.

혐기소화액의 고온호기산화 공정 적용에 관한 연구 (Application of the Thermophilic Aerobic Oxidation (TAO) System to Anaerobic Digestate Stabilization in Korea)

  • 김수량;김하제;조슈아 나이젤 할더;이지혜;신명철;김태하;이명규
    • 한국축산시설환경학회지
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    • 제21권1호
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    • pp.21-28
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    • 2015
  • We studied the possibility on the application of the Thermophilic Aerobic Oxidation (TAO) process to anaerobic digestate stabilization. In treating digestate with TAO reactor the internal temperature of the reactor was increasing higher and $51^{\circ}C$ and over was maintained after 6 days on. The physiochemical compositions of liquids increased from pH 8.1 to 9.8 and EC decreased from 29.8 to 12.0 mS/cm in treating process of digestate with TAO reactor. CODcr decreased from 22,654 to 18,843 mg/L, showed about 16.82% of remove efficiency. TN and $NH_4-N$ decreased from 4,813 to 1,733 mg/L, from 3,815 to 812 mg/L respectively, which showed about 64.0% and 78.7% of removal efficiency respectively.

개방형 제어 플랫폼 기반 호버링형 무인잠수정 테스트베드 설계 및 성능평가 (Design of a Test bed and Performance Evaluation for a Hovering Type Autonomous Underwater Vehicle under Open Control Platform)

  • 최재원;하태규;;유창호;서영봉
    • 제어로봇시스템학회논문지
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    • 제16권5호
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    • pp.489-497
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    • 2010
  • This paper presents the design of hardware platform, which is a test bed for the navigation system and hovering type AUV (Autonomous Underwater Vehicle) under the OCP (Open Control Platform). The developed AUV test bed consists of two hulls, four thrusters, and the navigation system which uses a SBC2440II with IMU (Inertial Measurement Unit). And the SMC (Sliding Mode Control) is chosen for the diving and steering control of the AUV. This paper uses ACE/TAO RTEC (Real-Time Event Channel) as a middleware platform in order to control and communicate in the developed AUV test bed. In this paper, two computers are used and each of them is dedicated for the specific purpose, the first computer is used as the SMC module and the middleware platform for the ACE/TAO RTEC and the second computer is used for the sensor controller. We analyze the performance of the AUV test bed under the OCP.

노자의 미학적 관점으로 본 전통공간의 해체적 특성 연구 (A Study on the Deconstruction Characteristics of Traditional Space Analyzed by Aesthetic Idea of Lao-tzu)

  • 이종희;김지은
    • 한국실내디자인학회논문집
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    • 제21권2호
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    • pp.56-64
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    • 2012
  • This paper has tried to analyze the characteristics of space in Korean traditional architecture by deconstructive concept through connecting Lao-tzu's theory, the main discourse of East and West, with Derrida's deconstructionism theory. Derrida's philosophical term of differance(diff$\acute{e}$rance) is similar to Tao of Lao-tzu. It is because Derrida emphasized the relationships with others by trying the strategy of overcoming dichotomous thinking by this term. Tao of Lao-tzu also has the relative characteristics that cannot be concluded by one sole meaning. Like this, Derrida and Lao-tzu are against traditional and dichotomous way of thinking. In this point of view, this study has set Derrida's deconstruction theory and Lao-tzu's thinking as the common viewpoint of this world. And through the phrase of Tao Te Ching which means deconstructive Tao, deconstructive space design vocabulary was derived as mixed no-boundary, shape of no-shape, transcendence of time and space. The deconstructive characteristics of traditional space by case study analysis of Lao-tzu's deconstructive space design are as follows: First, it is not a specific or detailed shape but an unlimited possibility that can be transformed into something else, moving and changing endlessly and has a borderless beauty. Second, it is nothing itself but creates various shapes, as if it exists without shape. Third, it is a relative and unlimited space and pursuits a free form as a non-conceptional shape without any system or value.

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