• Title/Summary/Keyword: Fire data analysis

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A Study on the Safety Assessment and Damage Pattern of Water Purifier Compressors (정수기용 압축기의 안전성 평가 및 소손 패턴 분석에 관한 연구)

  • Choi, Chung-Seog
    • Journal of the Korean Society of Safety
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    • v.28 no.2
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    • pp.21-25
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    • 2013
  • The purpose of this study is to provide basic data for the safety assessment of a water purifier when water leaks due to inappropriate maintenance and the examination of the cause of accidents related to the leak. Due to its inspection and management by non-specialists, if a leak occurs in a water purifier with the water level controller being inclined, it may result in the failure of the compressor, power supply line, PCB, etc. The analysis of the thermal diffusion pattern of water purifier compressors using a thermal image camera shows that its maximum temperature was approximately $80^{\circ}C$. In addition, its operating current was a maximum of 13 A and the system's operating current was approximately 1.7 A after the compressor was charged. It was found that the housing type power cable cover of the compressor had the effect of preventing electric shock but has poor flame resistance. Furthermore, the performance of the overload protector, PTC relays, etc., was excellent but they have potential for problems as metallic terminals were exposed, resulting in the potential of a safety related accident. The terminals and their surface damaged by the tracking showed a trace of carbonization and the resistance between terminals was measured to be approximately $8{\Omega}$. In addition, while the tracking was proceeding, the fuse and circuit breaker installed for system protection did not operate.

A study on a reconstruction of Gwanghwamun and fluctuation of boulevard in front of Gwanghwamun (1960년대 광화문 중건과 광화문 앞길의 변화)

  • Kang, Nan-hyoung;Song, In-Ho
    • Journal of architectural history
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    • v.24 no.4
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    • pp.7-18
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    • 2015
  • Gwanghwamun was dismantled and displaced to the east side of the palace, at that time, the Chosun Government General Building was constructed in the Gyeongbokgung palace. After the Korea war, it remained as a stonework as a result of the fire. In 1968, The Gwanghwamun came back in front of the palace. Then, why it was rebuilt in the 3rd Republic period? What was the reason for selecting concrete? Since the May 16 coup, the military regime had been utilized palace and surrounding urban space to show a visible practice of modernization. Attempting the combination of modern technology in the 1960s and traditional cultural property and reconstructing a city as a pretext called Cultural Heritage conservation was a typical mechanism of the 1960s. In this study, I start by assume that reconstructing Gwanghwamun(1968) was a part of project to change the surrounding urban space of Gwanghwamun than to preserve cultural assets. Two main contributions of the study are following. First, I collect availabe data on the reconstructing surrounding urban space of the Gwanghwamun and re-organize them in chronological order to make them as fragments of a map. Second, I analysis and identify the nature and phase of the Gwanghwamun reconstruction.

A Research on Controlling tile Portion Standardization of the Italian Restaurant Menu - Base on the Seoul Five-Star Hotel - (이태리 레스토랑 메뉴의 표준량 목표에 관한 연구 - 서울 특급호텔을 중심으로 -)

  • 이인성
    • Culinary science and hospitality research
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    • v.8 no.3
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    • pp.169-185
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    • 2002
  • Data collections were made from the Seoul five-star hotels'Italian restaurant to set goals on the quantity standardization by bringing up the issues from the analysis of their menus and portions. Brief of this research is as follows. The first, variations of Italian cuisine are significantly different from the region to region. The chef or cook must have general knowledge and understanding, and consider the ingredients and its cooking method. The second, for the understanding of fire Italian menu, languages used for the menu have to be in worldwide understandable languages and for the better understanding of Korean chefs, it should be also described in Korean. The third, for the cost controller and to reduce the cost, all food should be prepared in proper cooking method and set goal for the right portion size. The fourth, menu should be selected based on the customer preferences and the menu cycle change is adequate for four times a year. Italian food and dishes are prepared by above points with the standardized portion size and cooking method, more efficient and uniformed dishes will be provided to customers and customers will be fulfilled with the satisfaction.

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A Study on Hospital Nurses' Perception of Patient Safety Culture and Safety Care Activity (병원간호사의 환자안전문화에 대한 인식과 안전간호활동에 관한 연구)

  • Park, So-Jeong;Kang, Ji-Yeon;Lee, Young-Ock
    • Journal of Korean Critical Care Nursing
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    • v.5 no.1
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    • pp.44-55
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    • 2012
  • Purpose: The purpose of this study was to investigate perception of patient safety culture and safety care activity among hospital nurses and to identify factors associated with the safety care activity. Methods: A total of 399 nurses working at secondary or tertiary hospitals in B city were participated in. Data were collected using 'Questionnaire on Patient Safety' and 'Safety Care Activity Questionnaire'. Results: The mean score of patient safety culture was 3.41 out of possible 5. The mean score of safety care activity was 4.40 out of possible 5. There was a positive relation between the perception of patient safety culture and the safety care activity. Through stepwise regression analysis with 22.4% of accountability, it was found that the perception of the safety care activity was associated with communication process, a sub-domain of safety culture, marital status, experience of incidence reporting, and level of patient safety. Conclusion: The findings show the importance of communication among nurses to improve the safety care activity. To provide high quality of care for patients, it is necessary to educate nurses on fire safety, patient education, and medication safety and improve their communication skills.

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A Study on Analysis for Decrease Cause and Improve Management Method of Landscape Tree in Highway (고속도로 조경수 감소 원인 분석 및 관리 개선에 관한 연구)

  • Jeon, Gi-Seong;Woo, Kyung-Jin
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.6 no.6
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    • pp.86-95
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    • 2003
  • The object of this paper is to correct check the tree situation and quantity around highway. Also, those data utilize in order to establish plan about how to the long and short term landscape construction and maintain program. The result of this study can be summarized as follows; 1. Tree decrease rates for 8 branch offices were Jongbu(5.62%), Gangwon(4.32%), Chungcheong (3.35%), Honam(5.62%), Gyeongbuk(3.06%), Gyeongnam(5.60%), Seorak training center(0.31%), Headquarter(1.54%). Also decrease causes were traffic accidents(1.8%), air po11ution(4.7%), humid damage(0.9%), insect and disease(1.2%), wind and rainfall(3.4%), dry damage(3.5%), cold damage (1.0%), fire(3.1%), damage of the man and anima1(4.1%), remove bad tree(13.1%), bad rooting(9.5%) and etc.(53.7%). 2. Improve methods of tree death problems were regulation management(ferti1ize, irrigation and pesticide work), improvement of draining system, Pull out the weeds, Plant native plants, utilize organic matter fertilize and plant environment trees.

A Literary Study on Bezoar Bovis (우황에 대한 문헌적 고찰)

  • Park, Seong-Kyu;Park, Jae-Seuk;Baik, Seong-Il;Kwon, Ki-Rok
    • Journal of Pharmacopuncture
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    • v.8 no.3
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    • pp.51-55
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    • 2005
  • Objectives: Literary investigation of existing data was conducted to verify effects of Bezoar Bovis and its herbal acupuncture, and determine quality management through component analysis. Results: Following results were obtained through literary investigation. 1. Bezoar Bovis is dried cystic stone from a cattle. Its characteristics are cool, no toxicity, and bitter taste. Known actions are: quells heat and detoxifies Fire Poison, extinguishes internal movement of Liver Wind and stops convulsion, vaporizes phlegm, and opens orifice. It is mainly used for treating tremor, stroke, delirium, sore throat, oral furuncle, boil, and others. 2. Bezoar Bovis is effective for eliminating liver toxicity, protecting against brain damage, and has anti-microbial activities. 3. Bezoar Bovis is mixed with bear gall bladder and deer musk to be used as herbal acupuncture, and this mixture is effective is invigorating liver functions as well as treating arthritis, headache, and etc. 4. Principal components of Bezoar Bovis are bilirubin-type pigments and cholic acids. The amount of bilirubin can be used as a standard to determine the quality of Bezoar Bovis.

Thermal Transient Analysis of Electric Initiator Used SUS 304 Bridgewire (SUS 304 발열선을 사용한 전기식 착화기의 열특성 분석)

  • Yoon Ki-Eun;Ryu Byung-Tae;Choi Hong-Seok
    • Proceedings of the Korean Society of Propulsion Engineers Conference
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    • 2005.11a
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    • pp.184-187
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    • 2005
  • Performing thermal transient test on electric initiator with SUS 304 bridgewire(diameter 2.3mil) and $Zr-KClO_4$ primary charge and analysing the test data using Fitted Wire Model shows that the thermal characteristic parameter related to primary charge is changed sharply around $300^{\circ}C$. It is determined that this phenomenon is due to endothermic reaction from phase transition of $KClO_4$, which is used as primary charge, and to physical change of thermal transient interface between bridgewire and primary charge. With this results, useful temperature range for the parameter obtained from thermal transient test can be suggested.

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Contents Analysis of First Aid in Elementary, Middle and High School Textbooks (응급처치에 대한 초.중.고등학교 교과서 내용 분석)

  • Kim, Shin-Jeong;Lee, Jung-Eun;Kang, Kyung-Ah;Song, Mi-Kyung;Chang, Eun-Young;Kim, Sung-Hee
    • Child Health Nursing Research
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    • v.14 no.2
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    • pp.163-175
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    • 2008
  • Purpose: The purpose of this study was to provide basic data to develop first aid education programs for elementary, middle and high school students. Method: Forty nine textbooks adopted by first to six grade elementary schools and first to third grade of both middle and high schools were analyzed for content on first aid. Results: 1) First aid content was covered only in courses on and 2) Content on first aid was included in the categories, "General of first aid", "Rescue & moving", "Fire & Burns", "Cardiopulmonary resuscitation", "Musculoskeletal injuries", "Thermal injuries", "Wounds", "Removing foreign bodies", "Disaster & Accidents" and "Others". Categories that were not included were "Poisoning" and "Bites". The content did not follow a progression related to the level of intellectual and physical development of the students. Conclusion: These results suggest that the content on first aid should be revised to be practical and rational for the benefits of student safety.

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Framework for a general section designer software component

  • Anwar, Naveed;Kanok-Nukulchai, Worsak
    • Computers and Concrete
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    • v.1 no.3
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    • pp.303-324
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    • 2004
  • The Component-Based Software Development (CBSD) has established itself as a sound paradigm in the software engineering discipline and has gained wide spread acceptance in the industry. The CBSD relies on the availability of standard software components for encapsulation of specific functionality. This paper presents the framework for the development of a software component for the design of general member cross-sections. The proposed component can be used in component-based structural engineering software or as a stand-alone program developed around the component. This paper describes the use-case scenarios for the component, its design patterns, object models, class hierarchy, the integrated and unified handling of cross-section behavior and implementation issue. It is expected that a component developed using the proposed patterns and model can be used in analysis, design and detailing packages to handle reinforced concrete, partially prestressed concrete, steel-concrete composite and steel sections. The component can provide the entire response parameters of the cross section including determination of geometric properties, elastic stresses, flexural capacity, moment-curvature, and ductility ratios. The component can also be used as the main computational engine for stand-alone section design software. The component can be further extended to handle the retrofitting and strengthening of cross-sections, shear and torsional response, determination of fire-damage parameters, etc.

The Design and Performance Test of Mold Transformer for Outdoor Pole (50 kVA 주상용 몰드변압기의 설계 및 특성평가)

  • Cho, Han-Goo;Lee, Un-Yong;HwangBo, Kuk
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2002.05c
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    • pp.132-137
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    • 2002
  • The mold transformers have been widely used in underground substations in large building and have some advantages in comparison to oil-transformer, that is low fire risk, excellent environmental compatibility, compact size and high reliability. In addition, the application of mold transformer for outdoor is possible due to development of epoxy resin. The mold transformer generally has cooling duct between low voltage coil and high voltage coil. A mold transformer made by one body molding method has been developed for small size and low loss. The life of transformer is significantly dependent on the thermal behavior in windings. To analyse winding temperature rise, many transformer designer have calculated temperature distribution and hot spot point by finite element method(FEM). Recently, numerical analyses of transformer are studied for optimum design, that is electric field analysis, magnetic field, potential vibration, thermal distribution and thermal stress. In this paper, the temperature distribution of 50 kVA pole mold transformer for power distribution are investigated by FEM program and the temperature rise test of designed mold transformer carried out and test result is analyzed compare to simulation data. In this result, the designed mold transformer is satisfied to limit value of temperature and the other property is good such as voltage ratio, winding resistance, no-load loss, load loss, impedance voltage and percent regulation.

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