• Title/Summary/Keyword: Burning area

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A Study on the Fire Fighting General Index for Fire Fighting of Crowded Wooden Building Cultural Asset (군집 목조 건축문화재의 화재대응을 위한 소방방재 종합지수 연구)

  • Kwon, Heung-Soon;Lee, Jeong-Soo
    • Journal of architectural history
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    • v.21 no.2
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    • pp.37-52
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    • 2012
  • This research has set up the fire fighting general index for Fire fighting of Crowded Wooden Building Cultural Asset which is composed of traditional wooden building instinct or complex. The results of this study are as follows. First, Fire fighting general index for crowded wooden building cultural asset, it is necessary to set fire fighting priority by considering fire risk and cultural asset characteristic and establish the system to cope with fire disaster in the most effective way by arranging facilities with restricted resource. Second, Fire risk is the index to draw fire and spread risk of cultural asset by applying index calculation processes such as fire load, burning velocity and ignition material spread characteristic to various aspects such as individual building and complex and combining their results. Cultural asset importance index consists of individual building evaluation, publicity security degree, area importance evaluation and historical landscape degree evaluation. Third, for each index combination process, weight of each index is drawn on the basis of AHP analysis result that is performed to the specialists of related fields. The formula to apply and combine it is prepared to apply the model to include meaning of each index and comparative importance degree.

Preliminary Study of the Ecological Impact of Forest Fires in G. Massigit, G. Gede-Pangrango National Park, West Java

  • Abdulhadi, Rochadi;Adhikerana, A.S.;Ubaidillah, R.;Suharna, N.
    • The Korean Journal of Ecology
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    • v.23 no.2
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    • pp.125-129
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    • 2000
  • Gunung Gede Pangrango National Park is one of the Long-term Ecological Research Site in Indonesia. In the late 1997, the fires have burnt and destroyed nearly 300 ha forest in this park. and G. Masigit was the largest burnt area (250 ha) of nine locations of hot spot recognized. Undergrowth vegetation got the most severe impacts. Almost undergrowth vegetation in various location were totally burnt. However, within three months following burning new seedlings such as Omalanthus populneus, Macaranga, Trema orientalis and Eupatorium appeared in the forest floor- The number of mycoflora recorded in burnt forest was interestingly increased in post forest fires site. Forest fires in G. Masigit had also affected the wild life population and diversity. For example, the number of bird species and the number of soil insects in burnt forest was significantly reduced. The forest fires had also great impact on soil. such as on soil organic contents, bulk density, colour, consistency, permeability and the activity of soil microorganisms.

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A Case Report on Herpes Zoster (대상포진 환자 치험 1례)

  • Kim, Mi-Rang;Seo, Un-Kyo;Shin, Jeong-In
    • The Journal of Internal Korean Medicine
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    • v.23 no.1
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    • pp.147-152
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    • 2002
  • Clinical symptoms of herpes zoster include red rash, burning pain, tingling or extreme sensitivity in the affected area, usually limited to one side of the body. There might be a fever or a headache. The pain of acute herpes zoster may be severe, but it is usually temporary. Some of old patients are likely to develop postherpetic neuralgia. We treated a 73 year-old male patient who had severe pain and a headache after acute herpes zoster. In the point of Differentiation of Syndromes(辯證), this subject was diasgnosed as wind-heat syndrome(風熱證) and was administered Bangpungtongsung-san. For the purpose of making the pain easier, we used the western medication as well. After six days of treatment, pain and the other symptoms improved. Besides postherpetic neuralgia dissipated. Based on this experience, both oriental medicine and western medicine have a good effect on acute herpes zoster.

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Contralateral Horner's Syndrome after Stellate Ganglion Block -A case report- (성상신경절 차단후 발생한 반대측 호너 증후군)

  • Song, Sun-Ok;Lee, Deok-Hee;Park, Dae-Pal
    • The Korean Journal of Pain
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    • v.8 no.1
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    • pp.164-167
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    • 1995
  • Stellate ganglion block(SGB) is a widely used sympathetic block to diagnose or treat various painful conditions. We experienced a rare case who exhihited a contralateral Horner's syndrome following SGB. A 64-year-old female patient suffering from postherpetic neuralgia on mandibular branch of trigeminal nerve visited our pain clinic. She complained of severe burning and shooting pain on right side lower lip, ear and temporal area. We modified her previous medications and performed repeated right SGB daily, in combination with mandibular or mental and auriculotemporal nerve blocks twice a week. Her symptoms were progressively improved. A contralateral Horner's syndrome occured after the thirteenth SGB, which was performed under several attempts in the same manner and the same physician. She had no evidence of subarachnoid or brachial plexus blocks. She did not need any special treatment and returned home 2 hours later. Subsquent blocks were followed on ipsilateral Horner's syndromes.

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Research about the cooling of a small size rocket nozzle (소형로켓 노즐의 냉각에 관한 연구)

  • Go, Tae-Sig;Shim, Jin-Ho
    • Proceedings of the Korean Society of Propulsion Engineers Conference
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    • 2007.04a
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    • pp.365-369
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    • 2007
  • The solid rocket interacts circumscriptively in terms of is many more than liquid rocket. It is uncontrollable than liquid rocket because all part of combustion is decided such as Mixture ratio of propellant, burning time and area. However, production cost is cheap and because authoritativeness security can be easy and enlarge the early speed that follow thrust-to-weight ratio, it is used comprehensively by small size rocket. Considered about nozzle cooling to control phenomenon that burn by thermal conduction in interior wall of nozzle that follow in thrust increase of solid rocket and erosion phenomenon by combustion gas of high speed.

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Median Nerve Stimulation in a Patient with Complex Regional Pain Syndrome Type II

  • Jeon, Ik-Chan;Kim, Min-Su;Kim, Seong-Ho
    • Journal of Korean Neurosurgical Society
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    • v.46 no.3
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    • pp.273-276
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    • 2009
  • A 54-year-old man experienced injury to the second finger of his left hand due to damage from a paintball gun shot 8 years prior, and the metacarpo-phalangeal joint was amputated. He gradually developed mechanical allodynia and burning pain, and there were trophic changes of the thenar muscle and he reported coldness on his left hand and forearm. A neuroma was found on the left second common digital nerve and was removed, but his symptoms continued despite various conservative treatments including a morphine infusion pump on his left arm. We therefore attempted median nerve stimulation to treat the chronic pain. The procedure was performed in two stages. The first procedure involved exposure of the median nerve on the mid-humerus level and placing of the electrode. The trial stimulation lasted for 7 days and the patient's symptoms improved. The second procedure involved implantation of a pulse generator on the left subclavian area. The mechanical allodynia and pain relief score, based on the visual analogue scale, decreased from 9 before surgery to 4 after surgery. The patient's activity improved markedly, but trophic changes and vasomotor symptom recovered only moderately. In conclusion, median nerve stimulation can improve chronic pain from complex regional pain syndrome type II.

Fire at an Indoor Shooting Range in Busan II. Causes and Fire Safety Measures (부산 실내사격장 화재 II. 원인 및 화재안전대책)

  • Park, Woe-Chul
    • Fire Science and Engineering
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    • v.24 no.4
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    • pp.92-97
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    • 2010
  • Fire simulation by using a computational fluid dynamics model and examination of the fires at indoor shooting ranges broken out in the past were conducted, to presume causes of the fire at the indoor shooting range in Busan and suggest fire safety measures. On-site investigations and shooting tests on unburned gunpowder were also carried out. No trace of the muzzle spark and spark at the bullet trap was found in CCTV footage, and the impact of a stray bullet failed to ignite gunpowder. Cigarette was therefore presumed to be the most likely source of ignition among the potential sources. It appeared that the explosion in the shooting area was caused by violent burning of the polyurethane sound absorber and unburned gunpowder accumulated on it. The fire safety measures include prohibit of use of profile polyurethane sound absorber, removal of steel components from bullet trap, clean up and control of unburned gunpowder, etc.

Anesthesia Dolorosa following Retrogasserian Glycerol Injection for Trigeminal Neuralgia (삼차신경절액조내 순수 글리세롤 주입후 속발한 무지각성통증 -증례 보고-)

  • Lee, Jeong-Soon;Yoon, Jong-Soo;Lee, Jeong-Seok;Kim, Yong-Ik;Park, Wook;Kim, Sung-Yell
    • The Korean Journal of Pain
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    • v.8 no.2
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    • pp.371-373
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    • 1995
  • Percutaneous retrogasserian gangliolysis is suitable for treatment of trigeminal neuralgia because it is simple and effective. Further, it can avoid severe complications such as anesthesia dolorosa or dysesthesia that may develop after surgical procedure. However we have experienced an anesthesia dolorosa(pain in an area or region that is anesthetic) after percutaneous retrogasserian glycerol injection. This deafferentation pain is characterized by scratching, burning or itching sensation; and has shown to be of higher incidence in older and inemotionally unstable patients. Anesthesia dolorosa is relatively rare but difficult to treat. Consideration should be made for the complication which may develop during the procedure.

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A Study on determinate method of propellant burning area with single grain shape (단일 그레인을 갖는 추진기관 그레인의 연소표면적 산출기법 연구)

  • Kang, Kyoung-Hoon;Lee, Jun-Ho;Song, Sin-Yeong;Chung, Jon-Rok
    • Proceedings of the Korean Society of Propulsion Engineers Conference
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    • 2010.11a
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    • pp.121-125
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    • 2010
  • In this study, we have constructed this algorithm that theoretical method for prediction performance of the internal ballastic analysis. And we have confirmed reliability, compared the value calculated by realized program with the value computed by modeling program. A basic concept of algorithm expresses combustion phenomenon to move each factor(node) according to the time increment like as Finite element method. And we have confirmed this realized program has sufficient possibility to utilize in the internal ballastic analysis.

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Combustion of PMMA in Liquid Oxygen Flow

  • Mitsutani, Toru;Ro, Takaaki;Yuasa, Saburo
    • Proceedings of the Korean Society of Propulsion Engineers Conference
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    • 2004.03a
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    • pp.180-185
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    • 2004
  • Our previous study showed that although the hybrid rocket engine with swirling gaseous oxygen had high performance, a direct injection of LOX with swirl into the combustion chamber of the hybrid rocket engine lowered the performance of the engine, compared to that with gaseous oxygen. In order to clarify this reason, combustion tests of a small PMMA combustor with an inner port diameter of 2 mm were conducted in liquid oxygen flow by comparison with gaseous oxygen flow. Although the oxygen mass fluxes of LOX were about two orders of magnitude larger than those of gaseous oxygen, the fuel regression rate of LOX were remarkably smaller than those of gaseous oxygen. For both liquid and gaseous oxygen, diffusion flames in the port of the grain controlled the combustion process of PMMA in oxygen flow. These results may be explained by the fact that only small amount of LOX vaporized and consumed in the combustion with PMMA while flowing through the port due to relatively larger latent heat of injected liquid oxygen compared to the heat of release by combustion which depended on the burning surface area of PMMA.

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