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991.
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993.
Tae-Hoon Yoon 《Liquid crystals》2013,40(7):920-926
We investigated the effect of the polarisation direction and incident angle of a UV light on the electrooptical properties of the polymer-stabilised vertically aligned in-plane switching (PS-VAIPS) liquid crystal. The PS-VAIPS sample cured with a UV light whose polarisation was parallel to the projected direction of the in-plane electric field showed greater transmittance, faster rising time and slower falling time than the sample cured with a UV light with a perpendicular polarisation to the electric field. In addition, the PS-VAIPS sample showed slower rising time and faster falling time with increasing incident angle of the UV light. 相似文献
994.
Sunmi Kim Do-Kun Yoon Han-Back Shin Moo-Sub Kim Tae Suk Suh 《Journal of Radioanalytical and Nuclear Chemistry》2018,316(3):1059-1065
This study analyzed the effectiveness attained through generation of three alpha particles in proton-boron fusion therapy (PBFT) based on a Monte Carlo simulation. PBFT is based on a fusion reaction between protons and boron. Three alpha particles are emitted from this reaction. The three alpha particles cause greater damage to tumor cells than the single alpha particle produced in the boron neutron capture reaction or conventional therapy. In addition, the intrinsic proton dose pattern follows Bragg-peak curve. We confirmed an energy deposition by the alpha particle and verified the therapeutic effect of the PBFT. 相似文献
995.
Boryakov A. V. Gladilin A. A. Il’ichev N. N. Kalinushkin V. P. Mironov S. A. Rezvanov R. R. Uvarov O. V. Chegnov V. P. Chegnova O. I. Chukichev M. V. Shiryaev A. A. 《Optics and Spectroscopy》2020,128(11):1844-1850
Optics and Spectroscopy - The influence of annealing in zinc vapor on the impurity-defect composition and the IR cathodoluminescence (CL) of ZnSe:Te plates diffusion-doped with iron is studied.... 相似文献
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997.
Jimin Yoon Won Gun Kwack Wang-Seob Shim Jun Kyu Lee Dong Kee Jang Namyi Gu Ji-Yoon Cho Kyung-Tae Lee Eun Kyoung Chung 《Biomedical chromatography : BMC》2020,34(12):e4957
Cefpiramide is frequently used to treat biliary infections. However, no bioanalytical method has been validated to quantitate cefpiramide in human samples, particularly in bile. Therefore, this study was conducted to develop a simple, selective and validated high-performance liquid chromatographic method to determine cefpiramide in human plasma and bile. A protein precipitation procedure was used to extract cefpiramide and cefoperazone (internal standard, IS) from 200 μl of plasma and bile. Utilizing a Capcell Pak C18 column (4.6 × 250 mm), cefpiramide and IS were separated using the timed-gradient mobile phase consisting of 0.1 m sodium acetate (pH 5.2) and acetonitrile at a flow rate of 1 ml/min with photodiode array detector (wavelength set at 273 nm). The calibration curves showed linearity at concentrations ranging from 1 to 150 μg/ml in both plasma and bile (r2 > 0.999). The within- and between-run coefficients of variation (CVs) for plasma samples were 0.570–4.43 and 1.10–2.76%, respectively; for bile samples, the within- and between-day precision (CV) was 0.814–6.34 and 2.05–4.00%, respectively. Our newly developed bioanalytical method was successfully employed to quantify cefpiramide concentrations in both plasma and bile at multiple time points in patients with acute cholangitis. 相似文献
998.
Dong Wook Chang Seo‐Yoon Bae Liming Dai Jong‐Beom Baek 《Journal of polymer science. Part A, Polymer chemistry》2013,51(1):168-175
The efficient fluorescence resonance energy transfer (FRET) between amphiphilic dendrimers with oligo(p‐phenylenevinylene) core branches and oligo(ethylene oxide) termini have been observed in micelles. All dendrimers show the critical micelle concentration and lower critical solution temperature as well as fluorescent emission. Tailoring electronic structures of the conjugated amphiphiles for FRET have been conveniently achieved by varying the branch number and/or the conjugated core structure. The Stern‐Volmer constants (KSV) for FRET were found to be 4.51 × 10?5 and 8.78 × 10?5 M for Den 30–40 and Den 50–40, respectively. The effects external stimuli such as solvent and temperature on FRET have been also investigated. © 2012 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2013 相似文献
999.
R. R. Guminilovych P. I. Shapoval I. I. Yatchyshyn G. A. Il’chuk V. V. Kusnezh 《Russian Journal of Applied Chemistry》2013,86(5):696-702
Chemical surface deposition of thin CdSe films was studied. The conditions for preparing thin films were examined, the degrees of Cd conversion in the starting compounds were determined, and the film thicknesses were measured. 相似文献
1000.
Jae-Won Lee Do-Yoon Lee Young-Soon Lee Joo-Young Yoon Sang-Chae Jeon Ju-Ho Lee Seok-Min Hong Yung-Zun Cho 《Journal of Radioanalytical and Nuclear Chemistry》2018,317(1):15-23
The electrolytic reduction process in pyroprocessing of used fuel requires that fuel fragments be pre-treated to remove cesium and iodine. The effect of high temperatures and fuel fragment size on release of cesium was investigated over 10 h at a temperature of 1300–1400 °C for fuel fragments with an O/U ratio of 2.2. Re-fragmentation of the original fragments was observed as changes in cesium release count rates as fuel was heated from 484 to 1329 °C. The release of cesium is highly dependent on the size of fuel fragments and most of the cesium is released as the temperature is held at the maximum target value. 相似文献