• Title/Summary/Keyword: Radiation heat

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One case of Second Degree Burn Wound (2도 화상 치험 1례)

  • Jung, Soon-Young;Kang, Eun-Kyo;Seo, Hyung-Sik
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.20 no.1 s.32
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    • pp.285-293
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    • 2007
  • Burn is a dermal injury mainly caused by heat. It occurs by flame, boiling water or liquid, steam, sparks, chemicals, radiation, and electricity. Burn is classified as four grades depending on how deep into the skin a person is burned. As the deep second-degree burns possibly leave scars, it can have various physical, psychological, and aesthetical effects with seriousness on the patient with a burn. This report is on the 50-year-old female patient who had a burn with boiling water and a mixture condition of superficial and deep second degree burn. The Korean medical treatments such as Herbal acupuncture, Herbal medication, Acupuncture, Herbal-ointment were used for 17 days to treat effectively the patient with a mixture of superficial and deep second degree burn. It is difficult to find out the report that treats a burn with Korean medical treatment. If more clinical treatments as in this report are proved to be effective, we are able to expect that Korean medical treatment should be a good treatment in burn.

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A Simple Mlodel for Dispersion in the Stable Boundary Layer

  • Sung-Dae Kang;Fuj
    • Journal of Environmental Science International
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    • v.1 no.1
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    • pp.35-43
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    • 1992
  • Handling the emergency problems such as Chemobyl accident require real time prediction of pollutants dispersion. One-point real time sounding at pollutant source and simple model including turbulent-radiation process are very important to predict dispersion at real time. The stability categories obtained by one-dimensional numerical model (including PBL dynamics and radiative process) are good agreement with observational data (Golder, 1972). Therefore, the meteorological parameters (thermal, moisture and momentum fluxes; sensible and latent heat; Monin-Obukhov length and bulk Richardson number; vertical diffusion coefficient and TKE; mixing height) calculated by this model will be useful to understand the structure of stable boundary layer and to handling the emergency problems such as dangerous gasses accident. Especially, this simple model has strong merit for practical dispersion models which require turbulence process but does not takes long time to real predictions. According to the results of this model, the urban area has stronger vertical dispersion and weaker horizontal dispersion than rural area during daytime in summer season. The maximum stability class of urban area and rural area are "A" and "B" at 14 LST, respectively. After 20 LST, both urban and rural area have weak vertical dispersion, but they have strong horizontal dispersion. Generally, the urban area have larger radius of horizontal dispersion than rural area. Considering the resolution and time consuming problems of three dimensional grid model, one-dimensional model with one-point real sounding have strong merit for practical dispersion model.al dispersion model.

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A Study on the Design Standard of Museum Display Lighting in Consideration of the Damage by Optical Rediant Energy from Light Sources (광방사 에너지에 의한 손상을 고려한 박물관 전시조명 설계기준 설정에 관한 연구)

  • 김홍범;권세혁
    • The Proceedings of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.8 no.1
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    • pp.29-36
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    • 1994
  • Exhibitlon lighting design be done after due consideration of the photochemical reaction and heating effcts upon exposure to light In this study the balanced judgement is as follows. 'The most light-susceptible material should be illustrated less than 5O(lx](illumlnance-hours per year: 120,OOOlx.h)and the illuminance of moderately sensitive material is 200(lx] (illuminance hours per year: 480,OOOlx.h). Moreover to minimize damage the sources of light should not only contribute as little as heat possible but remove ultraviolt radiation by filters. Also the sources of light must have good color rendering and low color temperature.

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Experimental Consideration for Vibration Noise, Heat Evaluation on High Speed Mixer (고속 교반기의 진동소음, 열특성 평가를 위한 실험적 고찰)

  • Lee, Jin-Kab
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.9 no.6
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    • pp.1529-1534
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    • 2008
  • Recently, mixers are being widely used in the display and semiconductor company in order to mix the chemical materials. The mixer normally consists of shaft, hub, reduction gear, and driving motor. It is one of the key design factors to evaluate the dynamic characteristics caused by the rotation. In this study, the dynamic characteristics of the high speed mixer, such as vibration, noise and thermal radiation, are verified by the experiment. Through the experiment, it is shown that the structural unbalance mass of high speed mixer is the important source of the severe vibrations and maximum temperature is mixer bowl.

Surface characteristics of Si-doped $In_{0.1}Ga_{0.9}As$ epilayers due to Si-cell temperature (Si이 첨가된 $In_{0.1}Ga_{0.9}As$ 에피층의 Sit셀 온도에 따른 표면특성 연구)

  • 김동렬;이동율;배인호
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
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    • v.13 no.7
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    • pp.551-556
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    • 2000
  • We have investigated the effect of surface In composition with Si cell temperature on the In$_{0.1}$/Ga$_{0.9}$/As epilayers grown on GaAs substrates. The epilayers were grown by molecular beam epitaxy(MBE) method and were characterized by the pthotoreflectance(PR) measurements. The E$_{o}$ bandgap energies of In$_{0.1}$/Ga$_{0.9}$/As epilayers were observed at around 1.28 eV at room temperature, and the additional shoulder peaks appeared at the higher energies than E$_{o}$ with increase of Si doping concentrations. The intensity of the additional shoulder peak was decreased with lowering the measurement temperature and the peak disappeared with the increase of surface etching time. This results hows that In composition at surface of InGaAs epilayer is decreased with the increase of the doping cell temperature. We consider that the reason of the decrease of In composition at the surface should be due to In re-evaporation from the surface by radiation heat of Si doping cell.ell.ell.ell.

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The Temperature Distribution Analysis of Mold transformer (100kVA 주상용 몰드 변압기의 온도분포 해석)

  • Cho, Han-Goo;Lee, Un-Yong
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2004.05b
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    • pp.125-129
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    • 2004
  • 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, but it needs some cooling method because heat radiation between each winding is difficult. The life of transformer is significantly dependent on the thermal behavior in windings. Many transformer designers have calculated temperature distribution and hot spot point by FEM(finite element method) to analyze winding temperature rise. In this paper, the temperature distribution and thermal stress analysis of 100kVA pole cast resin transformer for power distribution are investigated by FEM program.

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Evaluation of Indoor Thermal Environment according to Type and Color of Blinds Installed in the Classroom (교실에 설치된 블라인드의 유형과 색상에 따른 실내 온열환경 평가)

  • Kwon, Daehyeok;Lee, Jae-Ro;Oh, Juseok;Wi, Seunghwan;Kim, Sumin
    • Journal of the Korea Furniture Society
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    • v.28 no.3
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    • pp.224-232
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    • 2017
  • Building energy saving have been put effort in a long time since buildings consume about 40.6% of total energy use, where heating, cooling and electrical lighting requirement results in energy consumption of building significantly. The window is an important part of building envelope, it usually brings a certain heat load from solar radiation while it allows light passing through, and properly leads to overheating in summer, hence the cooling load increase sand cause of thermal uncomfortable factor. The purpose of this study was to evaluate internal shade performance according to color and materials. There is growing interest in improving the sense of comfort among students who spend most of their time in the classroom. The study examined thermal environment and light environmental performance according to the color and materials of internal blinds to the school classroom. The results of this study were as follows; Among wooden blinds, aluminium blinds, and polyester blinds, the aluminium blinds were most excellent. In addition, among white blinds, light brown blinds, dark brown blinds, the light brown were most excellent.

Detecting Characteristics of Ultrasonics Generated by Partial Discharge in Insulating Oil Using the Optical Fiber Mach-Zehnder Interferometer (광섬유 Mach-Zehnder 간섭계를 이용한 부분방전 초음파 검출특성)

  • 이상훈;심승환;이광식;김달우
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.17 no.4
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    • pp.50-56
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    • 2003
  • It is well known that a partial-discharge(PD) in insulation oil is the source of various physical and chemical phenomena, such as heat, light, gas, chemical transformation, electric current, electromagnetic radiation and ultrasonics. The PD can be detected by measuring one of these changes. Although some techniques are employed in this purpose, several obstacles interfere with an on-line measurement. Ultrasonic-wave detection is a useful method for the diagnosis of the transformer-insulation condition. Conventionally, ulyrasonic waves are detected by Piezo-electric transducer, but we use optical method that has many advantages. In this paper, we constructed a Mach-Zehnder interferometer with optical fiber and investigated the principle of operation. Test arrangement is based on the needle-plane electrode system in oil and applied AC high voltage. Ultrasonic waves were detected and analyzed with wavelet transform.

A Development of Counter Flow Type of Cooling System for Effective Panel Cooling (효과적인 패널 냉각을 위한 대향류형 냉각장치의 개발)

  • Lee, Joong-Soon
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.11 no.3
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    • pp.802-807
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    • 2010
  • The high efficient and cooling system is very important to the control panels of electrical distributors, and Industrial automated system including computer. Also, it can be used widely in various industrial systems such as industrial robots, numerically controlled machining center, and so on. The cooling method which flowing gasses were forced to circulate by compulsion was adapted in this study. then development of counter flow type of cooling system for effective panel cooling. In the present study, fin assembly was developed for this cooling system. As results, the developed system has the improvements of cooling performances and radiant heat ratio. Its increasing of airflow mass is about 20%, and radiation rate of heating is twice or more as high as the conventional system.

A Structure-controlled Model for Hot Spring Exploration in Taiwan by Remote Sensing

  • Liu, Jin-King;Yu, Ming-Fang;Ueng, Shiun-Jenq
    • Proceedings of the KSRS Conference
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    • 2003.11a
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    • pp.28-30
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    • 2003
  • Hot Spring Law of Taiwan was passed in legislative assembly on 3 June 2003. Hot springs would become one of the most important natural resources for recreation purposes. Both public and private sectors will invest large amount of capital in this area in the near future. The value of remote sensing technology is to give a critical tool for observing the landscape to find out mega-scaled geological structures, which may not be able to be found by conventional approaches. The occurrences of the hot springs in Taiwan are mostly in metamorphic and sedimentary rocks , other than in volcanic environments. Local geothermal anomaly or heat of springs transfer by liquid convection other than conduction or radiation. The deeply -seated fractures of hard rocks are the conduit of the convection of hot water, which could be as deep as 3000 meters in a hypothetical model of Taiwan. Clues to find outcrops of hot spring can be obtained by a structure-controlled model deduced by geological lineaments observed by satellite images and stereoscopic interpretation of aerial photographs. A case study conducted in Eastern Taiwan will be demonstrated.

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