• Proceedings of the Korean Society of Soil and Groundwater Environment Conference
• /
• 2002.04a
• /
• pp.330-333
• /
• 2002

Immobilization isotherms for methyl tort-buty1 ether (MTBE) in sodium dodecy1 sulfate(SDS) and cetylpyridinium chloride (CPC) were investigated for application to micellar enhanced remediation. Headspace solid-phase microextraction was used to analyze immobilization isotherms. Maximum partitioning coefficients of MTBE were 48 L/mol and 9 L/mol for SDS and CPC, respectively, The values decreased gradually as the MTBE mole fraction in the micelles increased.

• Proceedings of the Korean Vacuum Society Conference
• /
• 2005.02a
• /
• pp.85-85
• /
• 2005

• 제어로봇시스템학회:학술대회논문집
• /
• 1989.10a
• /
• pp.367-371
• /
• 1989

A linear form of reduced-order distillation model is proposed, which contains the physical properties of distillation process and can be used in real time applications. The proposed model is linear in terms of liquid mole fraction and contains some tuning parameters. To verify the applicability of the proposed model, the model identification using nonlinear filtering techniques was applied. As a result, it was found that this model represented the simulated distillation process very closely as the parameters were converged.

• 한국연소학회:학술대회논문집
• /
• 2012.04a
• /
• pp.263-266
• /
• 2012

The characteristics of mild combustion and pollutant emission were investigated computationally with supplied air stream temperature and dilution rate in jet flame. The air was diluted with main combustion products. As dilution rate increased at fixed air temperature, the temperature distribution of burner inside was uniformed and the maximum mole fraction of CO and NO was decreased. In addition, emission indices for NO, CO, and $CO_2$ were compared with air temperature and dilution rate.

• Proceedings of the Korean Society of Toxicology Conference
• /
• 2001.10a
• /
• pp.166-166
• /
• 2001

Effects of propargylglycine (PPG) treatment on the hepatic glutathione (GSH) synthesis were examined in adult male ICR mice. Administration of PPG (200 mole/kg, ip) to mice resulted in a complete inhibition of the hepatic cystathionine ${\gamma}$ -lyase (C ${\gamma}$ L) activity measured in cytosol fraction for 40 hr after the treatment. A single injection of PPG rapidly reduced the hepatic GSH levels, which appeared to be sustained at least for 40 hr.(omitted)

• Journal of the Korean Chemical Society
• /
• v.13 no.1
• /
• pp.9-12
• /
• 1969

Partial molal volumes of anilinium chloride in several methanol-water mixtures have been determined at $30.0^{\circ}C$. The maximum in limiting slopes and the minimum in partial molal volumes at 0.4 mole fraction have been interpreted as the result of maximum electrostriction of the solvent with the minimum free volume.

• Proceedings of the KIEE Conference
• /
• 1987.07a
• /
• pp.389-392
• /
• 1987

The energy gaps of undoped and Cr doped GaAs and $Al_{0-3}Ga_{0-7}As$ was measured nondestructively using surface acoustic wave (SAW) technique. The result is good agreement with other reported result. This technique is inexpensive and simple one for the measurement of mole fraction of $Al_xGa_{1-x}As$.

• Bulletin of the Korean Chemical Society
• /
• v.9 no.4
• /
• pp.209-212
• /
• 1988

The hydrophobic interaction leading to the formation of ion-pair between $MB^+$ and $TPB^-$ was investigated spectroscopically by varying the medium with the addition of 1,A-dioxane or urea. Beyond 0.01 mole fraction of 1,A-dioxane in water or above 2.0M urea the ion-pair appeared to be completely dissociated into individual ions. The ion-pair was not observed in common organic solvents and the absorption maxima of $MB^+$ were correlated relatively well with the ${\pi}^{\ast}$-scale.

• The Korean Journal of Zoology
• /
• v.15 no.2
• /
• pp.92-93
• /
• 1972

Ox-RBC로부터 Moddy法에 依하여 Ox-RCM抗原을 抽出하여 몇가지 分析을 實施하였다. Lyophilized 한 Ox-RCM protein의 化學的 分析 結果 total protein은 $55\\pm 1.3%$, total nitrogen은 9.2%, carbohydrate 8.5% 그리고 total acid soluble phosphorus는 $0.96\\pm 0.1%$였다. Polyacrylamide gel electrophoresis한 結果 Ox-RCM은 12 $\\sim$ 15個, Pre-VRS fraction은 8個 및 PHR 分劃은 9個의 pattern을 나타냈다. Amino acid의 分析 結果로 cystine이 4.93 $\\sim$ 3.72 moles/100 moles 이고 glycine이 最高로 26.7 $\\sim$ 13.5 moles/100 moles였고 最低로 methionine 이었으나 試料의 抽出方法에 따라 그 値의 變動을 볼 수 있다.

• Journal of Industrial Technology
• /
• v.17
• /
• pp.297-303
• /
• 1997

This study investigates the characteristics of humic acid before and after ozonation. The results were comapred in such terms as CODCr, CODMn, TOC(total organic carbon) and molecular size distribution. As a result of ozonation (with the dose of 3mgO3/mgHumic Acid), UV NIS absorbance, CODCr, CODMn and TOC were decreased with similar tendency. The mole fraction of high molecular size was rapidly decreased and the fraction ratio of low molecular size was increased through ozone treatment. This fact can be correlated with the change in the difference and the ratio of CODCr and CODMn (the value of CODCr-CODMn and CODMn/CODCr). From this result, it can be inferred that the molecular size and the degree of chemical oxidative degradation of humic acid after ozonation were changed.