• Title/Summary/Keyword: TAO system

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

  • Lim, jae-seok;Son, jae-yeol;Lee, yong-tae;Lee, cheol-hoon
    • Proceedings of the Korea Contents Association Conference
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    • 2009.05a
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    • pp.845-850
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    • 2009
  • To support distributed environment that is independent and standardized between heterogeneous system, a study on the TAO(The ACE ORB) communication middleware based on the RT-CORBA is highly being done. The TAO supports real-time features not on the general purpose operating system like Windows or Linux but on the real time operating system like Vxworks or LynxOS. In this paper, we build and construct environment that supports a thread-level real time feature by porting the TAO on VxWorks target. Also we validate the ported TAO by network communication with the TAO of Windows.

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

  • Lee Won Il;Hirotada Tsujii;Lee Myung Gyu
    • Journal of Animal Environmental Science
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    • v.10 no.2
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    • pp.101-110
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    • 2004
  • A solid of Thermophilic Aerobic Oxidation(TAO) System was mixed with sawdust or a rice husks. After fermentation was finished, molding machine and a dryer were used, and pellet fertilizer was produced. The fertilizing experiment was carried out as five pieces by Bed soil, TAO solid(TAO-S), TAO pellet fertilizer(TAO-PF), Chemical fertilizer(NPK) and Control(no fertilizer). Growth rate of the Chinese cabbage by each treatment was examined. Analysis of microbe and soil characteristic before and after crop experiment were carried out. When the moisture contents of TAO-PF were $18\%$ and $25\%$, the occurrence rate of microbes for the storage time was increased to $80\%$ and $100\%$ respectively. However, in the $12\%$ of water content treatment was not increased microbes. The concentration of soil bacteria in TAO-PF and TAO-S for 15 day after treatment was $1.5\times10^7\~8.0\times10^7$ CFU/ml, and the concentration of bacteria for 50 day was increased to $6.3\times10^7$ and $8.3\times10^7$ CFU/ml. However, Fungus decreased. The concentration of Actinomycetes was increased in TAO solid, Bed soil and TAO-PF treatment. The TAO-S and TAO-PF treatment were normal to compare to the NPK treatment. In this experiment the height and width of the Chinese cabbage were 22.3 cm, 16.8 cm in Bed soil and 28.8 cm, 21.3 cm in TAO solid. The leaf number of TAO-S, TAO-PF and NPK treatment were similar to 39.8, 38.3, 40.3 sheet. As the result, the TAO-PF knew that use was possible with fertilizer.

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

  • Lee, Myung-Gyu;Cha, Gi-Cheol
    • Journal of Animal Environmental Science
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    • v.9 no.1
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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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Continuous Treatment of Piggery Slurry using the Thermophilic Aerobic Oxidation (TAO) System (급속액상부숙기술(TAO system)을 이용한 양돈분뇨의 연속처리)

  • 이원일;이명규
    • Journal of Animal Environmental Science
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    • v.6 no.3
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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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Reducing Technique for Nitrogen and Phosphorus in Piggery Slurry by the Thermophilic Aerobic Oxidation(TAO) System (급속액상부숙기술(TAO system)을 이용한 가축분뇨 슬러리의 질소.인 저감기술)

  • 이원일;이명규
    • Journal of Animal Environmental Science
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    • v.6 no.3
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    • pp.185-190
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    • 2000
  • TAO system and solid-liquid separation (28mesh filter and 200mesh filter) were applied in processing piggery slurry to see the reduction of N and P and to draw the efficiency in reducing manure application area. The results are as follows; 1. The amount of N and P in slurry of $4.6m^3/day$ was 22.5kg/day ($4,893mg/{\ell}$) and 7.32kg/day ($1,592mg/{\ell}$). 2. Reduction rate of N and P by TAO reactor was 9.9 kg/day (46.0%) and 3.47kg/day(34.0%). 3. Reduction rate of N and P by Solid-liquid separation was 10.5kg/day (46.6%) and 5.12kg/day (69.8%). 4. One the basis of the amount of nitrogen composting, the square size of liquid manure sprinkled area was reduced from 74.6ha/y to 39.0ha/y in rice paddy, and from 63.2ha/y to 33.0ha/y by the treatment.

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

  • 이명규;이원일
    • Journal of Animal Environmental Science
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    • v.6 no.3
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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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Cruise Report on TAO Real-time Monitoring Buoy System in the Pacific Ocean in April 2010 (2010년 4월 TAO 해양관측부이 시스템에 관한 탐사보고)

  • Kim, Dong-Guk;Kim, Seon-Jeong;Lee, Ha-Woong
    • Ocean and Polar Research
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    • v.33 no.4
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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.

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

  • Kim, Soo-Ryang;Kim, Ha-Je;Nizel, Halder Joshua;Rhee, Ji-Hae;Shin, Myoung-Chul;Kim, Tae-Ha;Lee, Myung-Gyu
    • Journal of Animal Environmental Science
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    • v.21 no.1
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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.

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

  • Choi, Jae-Weon;Ha, Tae-Kyu;Binugroho, Eko Henfri;Yu, Chang-Ho;Seo, Young-Bong
    • Journal of Institute of Control, Robotics and Systems
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    • v.16 no.5
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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.

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

  • Lee, Jong-Hee;Kim, Ji-Eun
    • Korean Institute of Interior Design Journal
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    • v.21 no.2
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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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