• Title/Summary/Keyword: turbid material

Search Result 26, Processing Time 0.021 seconds

A Study on Monte Carlo Simulation by Beam Scattering in Resin of New Austria Tunnel Method for Safety of Industrial Disaster (산업재해 안전을 위한 New Austria Tunnel Method 수지에서 빔산란에 관한 Monte Carlo 시뮬레이션에 관한 연구)

  • Kim, Ki-Jun;Lee, Joo-Youb
    • Journal of the Korean Applied Science and Technology
    • /
    • v.29 no.3
    • /
    • pp.473-479
    • /
    • 2012
  • The influences of scatterer and absorber in turbid material by light scattering were interpreted for the scattered intensity and wavelength. The molecular properties have been studied by Monte Carlo simulation in resin of New Austria Tunnel Method. It has been found that the effects of optical properties in scattering media could be investigated by the optical parameters(${\mu}_s$, ${\mu}_a$, ${\mu}_t$). Monte Carlo Simulation method for modelling of light transport in the civil engineering and construction field was applied. The results using a phantom were discussed that the distance from source to detector is closer, and scattering intensity is stronger with those obtained through Monte Carlo Simulation. It may also aid in designing the best model for coatings and corrosion for the durability of metal constructions.

Study on the Development of Diagnosis Algorithm of Soyangin Symptomatology (소양인(少陽人) 병증(病證) 진단 알고리즘 개발 연구)

  • Shin, Seung-Won;Lee, Eui-Ju;Koh, Byung-Hee;Lee, Jun-Hee
    • Journal of Sasang Constitutional Medicine
    • /
    • v.23 no.3
    • /
    • pp.294-303
    • /
    • 2011
  • 1. Objectives: The purpose of this study is to develop the algorithm, which can help clinicians diagnose Soyangin's symptomatology, based on the indexes for energy and fluid and those for nutrient material. 2. Methods: The items of "Donguisusebowon(東醫壽世保元)" were analysed to figure out the inevitable and sequential indexes of Soyangin's symptomatology diagnosis, in order of exterior-interior pattern differentiation, favorable-unfavorable pattern differentiation, and mild-severe-dangerous-urgent pattern differentiation. 3. Results and Conclusions: 1) 1st step: Soyangin's exterior pattern and interior pattern are differentiated in terms of heat and cold, respectively. Aversion to cold and feces are used to confirm the difference. 2) 2nd step: The existence of diarrhea is used to find out that an exterior pattern is with or without favor, while the indexes of back cold, skinniness of thigh-knee and turbid urine are used to identify an interior pattern with or without favor. 3) 3rd step: The favorably exterior-heat pattern can be either mild or severe by the indexes of stuffiness/rigidity/pain below the heart and digestion, while the unfavorably exterior-heat pattern can be either dangerous or urgent by the ones of cold-heat and specific pain. And, the favorably interior-cold pattern can be either mild or severe mainly by feces and subsidiarily by delirious speech and digestion, while the unfavorably interior-cold pattern can be either mild or severe by afternoon tidal fever and vomiting.

Studies on the Wave Propagation and Fluctuation in Randomly Ditribution Media of L-Aspartic Acid (L-Aspartic Acid의 무질서하게 분포된 매질에서 파동전개와 변동에 관한 연구)

  • Kim, Ki-Jun;Lee, Joo-Youb
    • Journal of the Korean Applied Science and Technology
    • /
    • v.29 no.1
    • /
    • pp.122-128
    • /
    • 2012
  • The influences of fluorescence, scattering, and flocculation in turbid material by light scattering of L-aspartic acid, preservative and emulsifier were interpreted for the scattered fluorescence intensity and wavelength. They have been studied the molecular properties by the spectroscopy of laser induced fluorescence (LIF) and flocculation. The effects of optical properties in scattering media have been found by the optical parameters(${\mu}_s$, ${\mu}_a$, ${\mu}_t$). Flocculation is an important step in many solid-liquid separation processes and is widely used. When two particles approach each other, interactions of several colloid particles can come into play which may have major effect on the flocculation and LIF process. The values of scattering coefficient ${\mu}_s$ are large by means of the increasing scattering of scatterer, The values have been found that the slope decays exponentially as a function of concentration from laser source to detector by our experimental result. It may also aid in designing the best model for oil chemistry, bio-pharmaceutical products, laser medicine and application of medical engineering on LIF and coagulation in particle transport mode.

A Study on the Measurements of Beam Wave Propagation and Fluorescence Spectroscopy in Particles Media (입자매질에서 빔파동전파와 형광분광 측정에 관한 연구)

  • Kim, Ki-Jun;Lee, Jou-Youb;Sung, Wan-Mo
    • Journal of the Korean Applied Science and Technology
    • /
    • v.31 no.2
    • /
    • pp.167-175
    • /
    • 2014
  • The influences of fluorescence, scattering, and flocculation in turbid material were interpreted for the scattered fluorescence intensity and wavelength, it has been studied the molecular properties by the spectroscopy of laser induced fluorescence(LIF). The effects of optical properties in scattering media have been found by the optical parameters(${\mu}_s$, ${\mu}_a$, ${\mu}_t$). Flocculation is an important step in many solid-liquid separation processes and is widely used in Photodynamic therapy. The interactions of several colloid particles can come into play which have major effect on the flocculation and LIF process. We measured scattering and fluorescence spectra of the sample for in vitro as function of concentration from lase source to detector. The value of scattering coefficient ${\mu}_s$ is large by means of the increasing particles of scatterer. Therefore, Phorphyrin A is larger than Phorphyrin C in scattering intensity ${\mu}_s$, but Phorphyrin A is smaller than Phorphyrin C in penetration depth ${\delta}$.

Measurement on the Methotrexate in L-${\alpha}$-Phosphatidylcholine Media by Light Sacttering (L-${\alpha}$-Phosphatidylcholine 매질에서 빔산란에 의한 Methotrexate의 측정)

  • Kim, Ki-Jun;Lee, Joo-Youb
    • Journal of the Korean Applied Science and Technology
    • /
    • v.30 no.2
    • /
    • pp.251-257
    • /
    • 2013
  • The influences of Methotrexate as fluorophor, scatterer, absorber in turbid material by light scattering were interpreted for the scattered fluorescence intensity and wavelength, it has been studied the molecular properties by laser induced fluorescence spectroscopy. It has been found that the effects of optical properties in scattering media by the optical parameters((${\mu}_s$, ${\mu}_a$, ${\mu}_t$). The value of scattering coefficient ${\mu}_s$ is large by means of the increasing particles of L-${\alpha}$-Phosphatidylcholine, it has been found that the slope decays exponentially as a function of depth from laser source to detector. It may also aid in designing the best model for oil chemistry, laser medicine and application of medical engineering.

A Study on Spectra of Laser Induced Flourescence in Phantom of N-propyl-N,N-dimethylethanolamine (N-propyl-N,N-dimethylethanolamine의 Phantom에서 Laser Induced Fluorescence의 스펙트라에 관한 연구)

  • Kim, Ki-Jun;Lee, Joo-Ho;Lee, Joo-Youb;Sung, Wan-Mo
    • Journal of the Korean Applied Science and Technology
    • /
    • v.32 no.2
    • /
    • pp.330-338
    • /
    • 2015
  • The influences of fluorescence, scattering, and flocculation in turbid material by light scattering of N-propyl-N,N-dimethylethanolamine, fluorescence agent and absorption agent were interpreted for the scattered fluorescence intensity and wavelength. They have been studied the molecular properties by the spectroscopy of laser induced fluorescence (LIF) and flocculation. The effects of optical properties in scattering media have been found by the optical parameters(${\mu}_s$, ${\mu}_a$, ${\mu}_t$). Flocculation is an important step in many solid-liquid separation processes and is widely used. When two particles approach each other, interactions of several colloid particles can come into play which may have major effect on the flocculation and LIF process. The values of scattering coefficient ${\mu}_s$ are large by means of the increasing scattering of scatterer, The values have been found that the slope decays exponentially as a function of concentration from laser source to detector by our experimental result. It may also aid in designing the best model for oil chemistry, bio-pharmaceutical, laser medicine and application of medical engineering on LIF and coagulation in particle transport mode.