• Title/Summary/Keyword: Human combustion

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A Study of the Safety Assessment for Combustion Products in the Exposure Human Bodies Rounding Missile Ejection (유도탄 사출시 연소 생성물의 인체 안전성 평가에 관한 연구)

  • Song, Kee Hyeok;Chung, Sung-Hak
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.37 no.4
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    • pp.269-273
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    • 2014
  • The objective of this study is to safety assessment for human body on the guided missile combustion products. This study is to verify the safety assessment when operating the interior missile ejection take on verify the safety of the human body. During the missile ejection of combustion products, this study is analyzed combustion products. Result are accepted NIOSH and KOSHA of the safe guideline, and 6 exposure gas to the specified values 42% (CO), 22% ($CO_2$), not detected (others) are within minimal exposures criteria of the reference value respectively. Contribution of these results supported that interior missile ejection during combustion products may have been ensured human safely. Therefore, the future for improving the environmental safety of the shooting projectile steel plate round, dust collector, ventilation and other facilities is to improve environmental safety and efficient renovated design needed by target focused areas.

Research trend analysis for Combustion products, Combustion products remove technique (연소생성물제거 기술에 대한 연구 동향 분석)

  • Lee, Hyunjin;Ko, Jae-Wook
    • Journal of the Korean Institute of Gas
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    • v.21 no.1
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    • pp.52-58
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    • 2017
  • According to 2015 ministry of public safety and security statistics, product of combustion makes the most victims while fire. for that reason, recent studies about combustion products have been researched actively in domestic and foreign papers. In domestic, study is handling the combustion product effects on human body and flame propagation. Foreign study is conduct about combustion product effects to shelter in offshore and toxic effects on human. because combustion product is toxic and disturb escape by block the view, many research conducted about optimize combustion product removal facilities using dispersion experiments and CFD simulations. In this study, this paper analysed research trend about toxic gas production model while combustion and its removal facilities, it will be the standard of combustion products research.

Deep learning neural networks to decide whether to operate the 174K Liquefied Natural Gas Carrier's Gas Combustion Unit

  • Sungrok Kim;Qianfeng Lin;Jooyoung Son
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2022.11a
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    • pp.383-384
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    • 2022
  • Gas Combustion Unit (GCU) onboard liquefied natural gas carriers handles boil-off to stabilize tank pressure. There are many factors for LNG cargo operators to take into consideration to determine whether to use GCU or not. Gas consumption of main engine and re-liquefied gas through the Partial Re-Liquefaction System (PRS) are good examples of these factors. Human gas operators have decided the operation so far. In this paper, some deep learning neural network models were developed to provide human gas operators with a decision support system. The models consider various factors specially into GCU operation. A deep learning model with Sigmoid activation functions in input layer and hidden layers made the best performance among eight different deep learning models.

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The study of standardization plan and usefulness of Moxa Combustion (뜸의 대중화 및 유용성 방안에 대한 연구)

  • Lee, Geon-mok;Lee, Kil-soong;Lee, Seung-hun;Chang, Jong-duk;Seo, Eun-mi;Choi, Jung-sun;Kim, Yang-jung
    • Journal of Acupuncture Research
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    • v.20 no.6
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    • pp.63-79
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    • 2003
  • Objective: It makes a through study on the popularization and usefulness paln of Moxa Combustion, therefore popularizing practical use of that. Methods: It was based on the established treatises and books, in order to studying about the literature of Moxa Combustion Results & Conclusions: It makes a through study on the whole of Moxa Combustion, the results as follows. 1. We explained(illustrated) the origin, history, classification and mechanism(effect) of Moxa Combustion 2. The study of standardization plan of Moxa Combustion for popularization - The thermal stimulation of Moxa Combustion was decided the characteristic pattern of combustion temperature by moxa burning and that makes a measure to grasp the effective action of Moxa Combustion upon human body. Thereupon it is necessary to continue further studies by analysing the characteristic pattern of combustion temperature by moxa burning and there clinical effects in practice. 3. The usefulness of Moxa Combustion - The therapeutic effect of Moxa Combustion are hematopoiesis(increase the blood), analgesic function, increase the immunity, antioxidant activity, diuretic action, control of hormone(endocrine gland), supression of carcinogenesis, increase the self involution(natural healing), decrease of GOT/GPT, Glucose, Cholesterol level.

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A Study about an Operating Characteristic of Hydrogen Burner by Using Catalytic Combustion (촉매연소를 이용한 수소버너의 작동 특성에 관한 연구)

  • Kim, Tae-Young;Park, Chang-Kwon;Oh, Byeong-Soo
    • Transactions of the Korean hydrogen and new energy society
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    • v.19 no.1
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    • pp.1-9
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    • 2008
  • Human has faced in lack of fossil fuel and environmental crisis because of high population growth and development of industry. Hydrogen, unlimited amount and clean resource from water electrolysis, is remarkably known as the solution of recent energy crisis. One of the special characteristics of hydrogen is that a little amount of catalytic such as platinum and palladium makes nonflammable combustion, in other words catalyst combustion. Catalytic combustion fueled by hydrogen is environmentally friendly. This paper considers some comparisons of characteristic of catalytic combustion between a single layer of platinum catalyst, double layer of platinum and nickel catalysts and mixture of platinum and nickel catalysts. Some experiments of temperature distribution at different positions and characteristic of combustion in low temperature region were done in order to find an applicable possibility as a house-cooking burner.

Comparison of Domestic and Overseas Allowable Standards Related to Emissions from Wood Pellet Combustion (목재펠릿 연소 배출물질과 관련한 국내외 허용기준 비교)

  • Yang, In;Han, Gyu-Seong
    • Journal of the Korean Wood Science and Technology
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    • v.46 no.5
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    • pp.553-564
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    • 2018
  • This article explains the types of emissions from wood combustion, how they are generated and the degree of harmful influence on the human body, and a comparison between domestic and overseas allowable standards regarding the safety of wood pellets, the allowable amount of emissions caused by combustion and so on was conducted.

기술사마당 - 도시 쓰레기 소각에서 발생하는 다이옥신으로부터 국민건강을 지키자

  • Choi, Hae-Wuk
    • Journal of the Korean Professional Engineers Association
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    • v.46 no.2
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    • pp.44-50
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    • 2013
  • The treatment of city life wastes is headache problem. Now, only small portion of burnable wastes is burnt at modern process incinerators, the other large portion is buried in the soil by landfill method. The burnable wastes will be increased year by year. The dioxin, the cancer-causing agent, produced by incineration of wastes influences harmful effect to national human health. The new idea of burnable wastes treatment is using the city life wastes as auxiliary fuel of fluidizing bed combustion boiler of large scale coal-fired power plant. The dioxin-free treatment of burnable wastes is sucessfully achieved by burning the wastes, in flyash storm at fluidizing bed combustion boiler.

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Combustion Generated Fine Particles, Trace Metal Speciation, and Health Effects

  • Linak, William P.
    • Proceedings of the Korea Air Pollution Research Association Conference
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    • 2003.11a
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    • pp.195-195
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    • 2003
  • Combustion generated fine particles, defined as those with aerodynamic diameters less than 2.5 m, have come under increased regulatory scrutiny because of suspected links to adverse human health effects. Transition metals are of particular interest due to the results of a number of studies that have shown cardiopulmonary damage associated with exposure to these elements and their presence in coal, residual fuel oils, sewage sludge, and other combusted fuels and wastes. This lecture will review results from multi-di sciplinary studies being conducted at EPA and elsewhere examining the physical, chemical, and toxicological characteristics of combustion generated particles. The research describes how collaborative work between combustion engineers and health scientists can provide insight on how combustion processes affect particle properties and subsequent health effects as measured by a combination of in-vitro and in-vivo studies using a variety of animal models. The focus of this lecture is on the interdisciplinary approach required to address the problem. Difficulties are discussed. Engineering aspects involved in this approach are described in detail. Physical and chemical characterizations are performed using a variety of analytical approaches including new techniques of x-ray absorption fine structure (XAFS) spectroscopy and x-ray absorption near-edge structure (XANES) deconvolution of these spectra to gather metal speciation information.

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ZR-75-1 human breast cancer cells to study the mechanism of action of PAHs

  • Min, Kyung-Nan;Sheen, Yhun-Yhong
    • Proceedings of the PSK Conference
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    • 2002.10a
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    • pp.286.1-286.1
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    • 2002
  • Recent industrial society has human widely exposed to PAHs that are comming from the incomplete combustion of organic material as widespread environmental contaminants. Biological activities of PAHs are not known although PAHs are considered as carcinogens. PAHs in the mammalian cells affect CYP 1A1 gene expression as well as other phase II drug metabolizing enzymes as UDPGT, NMOR etc. The mechanism of action of PAHs has been studied extensively, however it is not clear how PAHs turn on CYPIAI in human breast cancer. (omitted)

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Study on the Regional Deposition of Smoke Particles in Human Respiratory Tract under the Variation of Fire and Breathing Conditions (화재 및 호흡조건 변화에 따른 연기입자의 인체 호흡기 내 영역별 침착량 분석)

  • Goo, Jaehark
    • Fire Science and Engineering
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    • v.33 no.6
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    • pp.95-104
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    • 2019
  • Smoke generated in a fire consists of gaseous substances and particulate matter, such as unburned carbon that adsorbed the gases. Human injury caused by inhalation of gaseous substances present in smoke is mostly short-term, whereas damage caused by inhalation of particulate matter is relatively a long-term phenomenon depending on the state of the gas-phase adsorption. The amount and location of the deposited smoke particles are important factors in estimating the damage caused to humans, which are affected by the breathing conditions as well as particle conditions, such as the size and concentration affected by the combustion conditions. In this study, in order to understand the characteristics of the deposition of smoke particles in the respiratory tract related to the study of human smoke inhalation injury, the number and mass concentration of smoke particles deposited in different areas of the respiratory tract for different fuel types, combustion conditions and breathing conditions were calculated. In addition, the amount of mass deposition of smoke in the respiratory tract for a certain period of inhalation was compared with the atmospheric standard of fine dust.