• Title/Summary/Keyword: fire classification

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Differences of Symptom Improvement Between Different Diagnosis Classification Groups in Acute Cerebral Infarction Patient (급성기 뇌경색 환자의 변증군간 호전도 차이에 대한 연구)

  • Hyun, Sang-ho;Lee, Eun-chan;Kwak, Seung-hyuk;Woo, Su-kyung;Park, Ju-young;Jung, Woo-sang;Moon, Sang-kwan;Cho, Ki-ho;Park, Sung-wook;Ko, Chang-nam
    • The Journal of the Society of Stroke on Korean Medicine
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    • v.13 no.1
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    • pp.52-62
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    • 2012
  • Object : The aim of this study was to examine the differences of symptom improvement between different diagnosis classification groups in acute cerebral infarction patients. Methods : We studied inpatients within a month after the onset of cerebral infarction who were admitted at Kyunghee University Oriental Medical Center from May 2011 to October 2012. We compared the improvement of Motricity Index and Scandinavian Stroke Scale score between Fire-heat group(n=20), Yin deficiency group(n=31), Dampness-phlegm group(n=30), and Qi deficiency group(n=13). Results : Yin deficiency group patients with cerebral infarction showed the most improvement in MI and SSS scores, and patients in Fire-heat group showed the poorest improvement in MI and SSS scores. There was a significant difference between the two groups, but there were no significant differences between all four diagnosis classification groups. Conclusions : This study provides evidence that diagnosis classification could be considered as an important factor in predicting the prognosis of acute cerebral infarction.

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Fire Service Policy Theory for Establishing Fire Science (소방학의 학문적 정체성 확립을 위한 소방정책론 정립방안)

  • Ryu, Sang-Il;Lee, Jae-Eun
    • The Journal of the Korea Contents Association
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    • v.10 no.2
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    • pp.421-432
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    • 2010
  • In Korea, about 80 academic departments related to fire science are in operation throughout the country, but fire science is not included as a branch science in the science classification system acknowledged by the Ministry of Education, Science and Technology and its position as a science is not solid yet. In response to this problem, research is being made actively to establish fire science recently. This study aims at composing the fire service policy theory which is one of sub areas of fire science. First, the concept of fire service policy should be established, and fire service policies should be divided into different types. In addition, it is necessary to examine the direction of the development of fire service policies in Korea, and the unique characteristics of fire service policies should be described. Next, we will mention fire service policy making and participants, theories on the determinants of fire service policies, the execution of fire service policies, and the evaluation of fire service policies. Particularly, based on the peculiarity of fire service, it is necessary to explain policies on fire prevention and precaution, fire investigation, rescue and first aid, public campaigns for safety and prevention, fire insurance, etc. Finally, we suggest the future directions of fire service policies according to the change of environment in the future.

Transition of Four Major Social Safety Indexes by Time Series Data Analysis (시계열 자료 분석을 통한 4대 사회안전지표 변화 추이)

  • Song, Chang Geun;Jang, Hyun-ju;Lee, Kum-Jin
    • Journal of the Society of Disaster Information
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    • v.11 no.4
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    • pp.634-638
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    • 2015
  • Four major social safety indexes including industrial accident, traffic accident, fire, and violent crime were selected, and transition of those values by time series data analysis since 2003 was presented. Comparing with the 2003 figure, the index of industrial accident was reduced by 27.8%, which was the most improved safety index. The indicators describing the traffic accident and violent crime rate were reduced by approximately 12%. However, the fire safety index showed an increase of 40% compared with the base year because national fire classification system was changed so that minor fire is also included in the counting since 2006.

A Study of Kernel Characteristics of CNN Deep Learning for Effective Fire Detection Based on Video (영상기반의 화재 검출에 효과적인 CNN 심층학습의 커널 특성에 대한 연구)

  • Son, Geum-Young;Park, Jang-Sik
    • The Journal of the Korea institute of electronic communication sciences
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    • v.13 no.6
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    • pp.1257-1262
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    • 2018
  • In this paper, a deep learning method is proposed to detect the fire effectively by using video of surveillance camera. Based on AlexNet model, classification performance is compared according to kernel size and stride of convolution layer. Dataset for learning and interfering are classified into two classes such as normal and fire. Normal images include clouds, and foggy images, and fire images include smoke and flames images, respectively. As results of simulations, it is shown that the larger kernel size and smaller stride shows better performance.

Research of IoT concept implemented severity classification system (IoT개념을 활용한 중증도 분류 시스템에 관한 연구)

  • Kim, Seungyong;Kim, Gyeongyong;Hwang, Incheol;Kim, Dongsik
    • Journal of the Society of Disaster Information
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    • v.14 no.1
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    • pp.28-35
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    • 2018
  • The following research has focused and implemented on designing a system that classifies the severity of mass casualty situations across both normal and disaster levels. The system's algorithm has implemented requirements such as accuracy as well as user convenience. The developed e-Triage System has applied various severity classification algorithms implemented from IoT concepts. In order to overcome flaws of currently used severity classification systems, the e-Triage System used electronic elements including the NFC module. By using the mobile application's severity classification algorithm the system demonstrated quick and accurate assessment of patient. Four different LED lamps visualized the severity classification results and RTS scores were portrayed through FND(Flexible Numeric Display) after a two wave classification.

A Study on the Fire Characteristics of Palletized Unit-Load Commodities on Racks (랙크 내 파렛트단위 적재물품의 화재특성에 관한 연구)

  • Cho, Gyu-Hwan;Yeo, In-Hwan
    • Fire Science and Engineering
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    • v.30 no.3
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    • pp.23-30
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    • 2016
  • A fire extinguishing system for a rack warehouse was recently designed, which only consider the gross area and number of stories. However, the design of such a system should take into account not only the planar structuree, but also the elevation perspectives due to its vertical structure. Moreover, the fire load of the commodities palletized on the racks should be considered, in order to design a performance-based fire safety system that is appropriate for these environmental conditions. For this reason, this study analyzed the fire characteristics of the commodities palletized on the racks (pallet + the commodities in a box unit + vinyl packing material), taking into consideration the results of a field investigation conducted in Korea, as well as the Hazard Classifications of Commodities used in other countries. Through this analysis, the heat release rate (HRR) and smoke production rate (SPR) were derived.

Heat Transfer Characteristics of Bulkhead Penetration Piece for A60 Class Compartment I: Transient Thermal (A60급 구획 적용 격벽 관통용 관의 열전달 특성 I: 관의 설계에 따른 과도 열해석)

  • Park, Woo-Chang;Song, Chang Yong;Na, Ok-Gyun
    • Journal of Ocean Engineering and Technology
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    • v.32 no.5
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    • pp.310-323
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    • 2018
  • In order to protect lives and prevent large-scale injuries in the event of a fire on a ship or an offshore plant, most classification societies are strengthening their fire resistance designs of relevant cargo holds and accommodation compartments to keep flames from being transferred from a fire point to other compartments. Particularly in critical compartments, where flames should not propagate for a certain period of time, such as the A60 class division, both the airtightness and fire-resistant design of a piece passing through a bulkhead are subject to the Safety of Life at Sea Convention (SOLAS) issued by the International Maritime Organization (IMO). In order to verify the suitability of a fire-resistant design for such a penetrating piece, the fire test procedure prescribed by the Maritime Safety Committee (MSC) must be carried out. However, a numerical simulation should first be conducted to minimize the time and cost of the fire resistance test. In this study, transient thermal analyses based on the finite element method were applied to investigate the heat transfer characteristics of a bulkhead penetration piece for the A60 class compartment. In order to determine a rational bulkhead penetration piece design, the transient heat transfer characteristics according to the variation of design parameters such as the diameter, length, and material were reviewed. The verification of the design specification based on a numerical analysis of the transient heat transfer performed in this study will be discussed in the following research paper for the actual fire protection test of the A60 class bulkhead penetration piece.

Development of Forest Fire Occurrence Probability Model Using Logistic Regression (로지스틱 회귀모형을 이용한 산불발생확률모형 개발)

  • Lee, Byungdoo;Ryu, Gyesun;Kim, Seonyoung;Kim, Kyongha
    • Journal of Korean Society of Forest Science
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    • v.101 no.1
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    • pp.1-6
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    • 2012
  • To achieve the forest fire management goals such as early detection and quick suppression, fire resources should be allocated at high probability area where forest fires occur. The objective of this study was to develop and validate models to estimate spatially distributed probabilities of occurrence of forest fire. The models were builded by exploring relationships between fire ignition location and forest, terrain and anthropogenic factors using logistic regression. Distance to forest, cemetery, fire history, forest type, elevation, slope were chosen as the significant factors to the model. The model constructed had a good fit and classification accuracy of the model was 63%. This model and map can support the allocation optimization of forest fire resources and increase effectiveness in fire prevention and planning.

A study on the survey Korea code research for fire safety design of high-rise building (초고층건축물의 화재안전설계를 위한 관련법령조사에 관한 연구)

  • Kim, Il-Kwon;Seo, Dong-Ku;Kwon, Young-Jin
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2013.11a
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    • pp.232-233
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    • 2013
  • Recently Korea has imported and executed Performance Based Design for the method to settle the dangerousness on outbreak of fire of high-rise building. The overseas country's PBD is autonomic but It is unable to carry out the essential role of PBD as the performance based design that based the code based design in the domestic. Also It occurs the problems that different the classification standard of building as dualisation between the building code and the fire services act. In this study, We have investigated overseas's cases for the PBD of high-rise building and have drawn the improvement direction & the problem of domestic's PBD by comparing and the analysing the domestic regulation.

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Fire Risk Assessment of Building Use Types Using Natural Breaks (Jenks) (자연적 구분법을 이용한 건축물 용도별 화재위험도 평가)

  • Lee, Kyu Min;Lim, Hyeon Seok;Cho, Jae Woo;Lee, Sang Kwon;Min, Se Hong;Min, Jeong Ki
    • Fire Science and Engineering
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    • v.33 no.6
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    • pp.63-71
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    • 2019
  • This study quantitatively analyzed the fire risk of buildings by use nationwide, fire occurrence, and the statistical data of buildings by use. Fire incidents and buildings' statistics from the past 10 years (2008-2017) were used and classified as "Building Laws" and "Enforcement Decree of the Act on the Installation, Maintenance, and Safety of Fire Facilities" to be used for the relative assessment under the Natural Breaks as a risk matrix. In addition, after conducting risk assessment using 2018 fire occurrence data, we compared and analyzed the same with past 10 years' data. The results showed that most facilities had similar risk grades, except for the results of reduced risk levels from IV to II in recreational facilities, confirming the past and present data correlations as valid. Hence, the classification method is deemed appropriate. Through the results, the fire risk assessment of buildings by use nationwide are presented as a reference for fire safety.