• Title/Summary/Keyword: Indicated power

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A Study on Characteristics of Power Generation System Using Biogas from the Waste of Pig Farm

  • Huynh, Thanh-Cong;Pham, Xuan-Mai;Nguyen, Dinh-Hung;Tran, Minh-Tien
    • Transactions of the Korean hydrogen and new energy society
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    • v.21 no.5
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    • pp.435-441
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    • 2010
  • To verify the possibility of a power generation system using biogas from the waste of pig farm for rural electric production, a SI gasoline engine is modified to use biogas fuel and was installed in a 20 KVA power generation system. An electronic speed regulation unit is developed to keep the system speed at 1500 rpm. Experimental investigations have been carried out to examine the performance characteristics of power generation system (such as: system frequency, phase output voltage,$\ldots$). In addition, the operating parameters and output emissions ($NO_x$, HC, and $CO_2$) of biogas-fueled engine are preliminary evaluated and analyzed for the change of system load. Results indicated that the researched power generation system shows a high stability of output voltage and frequency with help of speed regulator. Biogas fuel (mainly $CH_4$ and $CO_2$) has an environmental impact and potential as a green alternative fuel for SI engine and they would not require significant modification of existing engine hardware. Output emissions of biogas-fueled engine are found to be relative low. $NO_x$ emission increases with the increase of output electric power of the power generation system.

Evaluation of Almaty City Soil's Toxicity by the Representatives of the Microflora and Microfauna

  • Mynbayeva, Bakhyt N.;Esimov, Bolat K.
    • Korean Journal of Environmental Biology
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    • v.29 no.3
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    • pp.208-211
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    • 2011
  • The lowest amount of heavy metals was found outside the city (25 km away), the highest amount was found near the thermoelectric power plant, and the average amount was discovered in the central part of the city. The presence of heavy metals in soil samples resulted in reduction of several important soil characteristics (pH, humus content, soil "breathing"). Use of simple and quick methods to examine soil with high heavy metals pollution resulted in the discovery of a pedobiota group, consisting of nematodes, fungi (genus Fusarium) and Protozoa which indicated the toxicity of the Almaty city soils.

An Experimental Study on NOx Reduction in Exhaust Gas from Agricultural Diesel Engine with Plasma and Catalyst (플라즈마와 촉매를 이용한 농용 디젤기관 배기가스 중의 NOx 저감에 관한 실험적 연구)

  • 이승규;조기현;황의현
    • Journal of Biosystems Engineering
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    • v.24 no.6
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    • pp.465-472
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    • 1999
  • To remove nitrogen oxides(NOx) in exhaust gas of diesel engine, three-way catalytic process with plasma discharger has great possibilities. Characteristics of NOx removal depends on NO conversion to NO$_2$and/or HNO$_3$due to high activation energies for NO oxidation and reduction. NOx removal efficiency by using three-way catalytic with plasma discharger indicated about 50% at 40watt power consumption condition.

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The Characteristics of Blastfurnace Slag Blended Cement with Low Blaine Slag Powder (저 분말도 슬래그를 사용한 슬래그 시멘트의 특성)

  • 변승호;최현국;김재영;송종택
    • Proceedings of the Korea Concrete Institute Conference
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    • 1998.10c
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    • pp.19-24
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    • 1998
  • In this study, blended cement with low blaine(2000, 3000$\textrm{cm}^2$/g) blast-furnace slag power by 10-70wt.% was investigated through the measurement hydration heat, physical properties. The experiment results indicated compressive strength was decreased as low blaine slag blended, but hydration heat was reduced significantly and flow of the cement paste was increased.

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The Current Boost Type Static Excitation Systems for Synchronous Generator (전류 부스터 정류기를 갖는 정지형 여자시스템 특성 개선 연구)

  • 임익헌;김장목;김경철
    • Proceedings of the KIPE Conference
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    • 1999.07a
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    • pp.193-196
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    • 1999
  • The current boost type atatic excitation system for synchronous generator that can sustain prope output voltage level even at fault condition is proposed. The proposed excitation system is capabl of supplying level 60% of the rated voltage. The proposed system is verified and tested using computer simulations as well as load tests. The load tests are performed with a 5KVA synchronous generator driven by a ac motor. The actual tests results indicated a good performance.

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An Experimental Study on Effect of Plasma for Exhaust Emissions in Small High-Speed Diesel Engine (소형 고속 디젤엔진의 배기 배출물에 미치는 플르즈마의 영향에 관한 실험적 연구)

  • 백태실
    • Journal of Advanced Marine Engineering and Technology
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    • v.23 no.6
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    • pp.755-760
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    • 1999
  • To remove nitrogen oxides(NOx) in exhaust gas of diesel engine three-way catalytic process with plasma discharger has great possibilities. Characteristics of NOx removal depends on NO conver-sion to $NO_2$ and /or $HNO_3$ due to high activation energies for NO oxidation and reduction, NOx removal efficiency by using three-way catalytic with plasma discharger indicated about 50% at 40watt power consumption condition.

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An Experimental Stduy on NOx Reduction in Exhaust Gas from Diesel Engine with Plasma (플라즈마를 이용한 디젤엔진 배기가스 중의 NOx 저감에 관한 실험적 연구)

  • 조기현;황의현
    • Transactions of the Korean Society of Automotive Engineers
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    • v.7 no.8
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    • pp.83-90
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    • 1999
  • To remove nitrogen oxides(NOx) in exhaust gas of diesel engine, three-way catalytic process with plasma discharger has great possbilities. Characteristics of NOx removal depends on NO conversion to $NO_2$ and/or $HNO_3$ due to high activation energies for NO oxidationand reduction. NOx removal efficiency by using three-way catalytic with plasma dischager indicated about 50% at 40 watt power consumption condition.

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An Analysis of the Induced Voltage characteristic on 22.9kV-Y Distribution Lines (가공배전선에 의한 유도전압 특성 분석)

  • Lim, Yong-Hun
    • Proceedings of the KIEE Conference
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    • 2003.07a
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    • pp.500-502
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    • 2003
  • This paper reviews calculating of induced voltage onto a communication line from 22.9kV-Y Distribution Lines. The coexistence of both power line and communication line in parallel generates the induction of significant longitudinal voltage in the weak current line. In order to evaluate a precise induced voltage, this paper indicated some problems about coefficient and numerical formula. It also presents some induced voltage production technology standard application.

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Interim Relief in International Commercial Arbitration (국제상사중재(國際商事仲裁)에 있어서 중간보전조치(中間保全措置))

  • Lee, Kang-Bin
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
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    • v.13
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    • pp.131-149
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    • 2000
  • In connection with international commercial arbitration the need to seek interim relief is generally recognized. Interim reliefs address the requirements of a party for immediate and temporary protection of rights or property pending a decision on the merits by the arbitral tribunal. The most common forms of interim relief are attachments and injunctions. If the arbitral tribunal has not yet been appointed, an application for interim relief must usually be addressed to the local courts at the place of commercial arbitration. If the arbitral tribunal has been appointed, the application for interim relief is first made to the arbitral tribunal. Interim relief by the arbitral tribunal is in the form of a direction to the parties. Since the arbitral tribunal has no enforcement power, it may be necessary to have a arbitral tribunal's direction confirmed by a local court which can enforce its order. The New York Convention does not provide for interim reliefs. The question is whether Article II(3) of the New York Convention that the court "shall, at the request of one of the parties, refer the parties to arbitration" denies jurisdiction to courts to grant interim reliefs in international commercial arbitration. Some cases have indicated that the U. S. court have no power to grant interim relief. Other cases have indicated that the U. S. courts do have the power to grant interim relief. It is unlikely that a U. S. court will order interim relief in relation to an commercial arbitration in a foreign country. Article 26 of the UNCITRAL Arbitration Rules provides with respect to interim measures of protection. Section 1 of Article 26 of UNCITRAL Arbitration Rules provides that the arbitral tribunal may take any interim measures it deems necessary in respect of the subject matter of the dispute, including measures for the conservation of the goods forming the subject matter in dispute. This article gives the arbitral tribunal the broadest authority, not limited to safeguarding property. Article 17 of the UNCITRAL Model Law on International Commercial Arbitration provides that the arbitral tribunal may order any party to take such interim measure of protection as the arbitral tribunal may consider necessary in respect of the subject matter of the dispute. It may be noted that the article does not deal with enforcement of such measures. The International Chamber of Commerce Rules of Conciliation and Arbitration do not expressly empower the arbitral tribunal to grant interim reliefs. However, Article 8.5 of the ICC Rules of Conciliation and Arbitration provides that the parties shall be at liberty to apply to any competent judicial authority for interim measures. In conclusion, the power of the arbitral tribunal to provide interim reliefs is generally recognized in the arbitration rules of arbitral institutions. However, the arbitral tribunal's authority is limited by its lack of enforcement mechanisms. It is generally recognized that the local courts have power to grant interim reliefs in aid of an commercial arbitration. However, local courts are reluctant to grant interim reliefs if that decision requires an adjudication of issues within the special competence of the arbitral tribunal.

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The effect of low power GaAlAs laser stimulation on anti-nociception and spinal neuronal activity related to pain sensation in the polyarthritis of rats (다발성 관절염 실험동물 모델에서 저출력 GaAlAs 레이저 자극의 진통효능 및 통증관련 척수내 신경세포의 활성변화에 관한 연구)

  • Chang, Moon-Kyung;Choi, Young-Duk;Park, Bong-Soon
    • Journal of Korean Physical Therapy Science
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    • v.10 no.1
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    • pp.180-189
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    • 2003
  • The experiments were designated to evaluate the anti-nociceptive effect of low power laser stimulation on acupoint or non-acupoint using arthrogenic solution induced poly arthritis animal model. Evaluation of potential antinociceptive effect of low power laser on arthritis has employed measurements of the foot bending test, the development of either thermal or mechanical hyperalgesia following the arthritis induction. The analysis of thermal hyperalgesia includes Hargreaves's method. Randall-Sellitto test was utilized for evaluating mechanical hyperalgesia. In addition, the antinociceptive effect of low power laser stimulation on arthritis induced spinal Fos expression was analyzed using a computerized image analysis system. The results were summerized as follows: 1. In laser stimulation on acupoint treated animal, laser stimulation dramatically inhibited the development of pain in foot bending test as compared to those of non acupoint treated animal group and non treated animal group. 2. The threshold of thermal stimulation was significantly increased by low power laser stimulation on acupoint as compared to that of non treated control group. 3. Laser stimulation on acupoint dramatically attenuated the development of mechanical hyperalgesia as compared to that of non treated group. 4. Low power laser stimulation on acupoint significantly suppressed arthritis induced Fos expression in the lumbar spinal cord at 3 week post arthritis induction. In conclusion, the results of the present study demonstrated that low power laser stimulation on acupoint has potent anti-nociceptive effect on arthritis. Additional supporting data for an antinociceptive effect of laser stimulation was obtained using Fos immunohistochemical analysis on spinal cord section. Those data indicated that laser stimulation induced antinociception was mediated by suppression of spinal neuron activity in pain sensation.

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