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INDIRECT VOLTAMMETRIC DETERMINATION OF TRACE SULFATE IN NATURAL WATERS WITH THE ADSORPTIVE COMPLEX WAVE OF LEAD(Ⅱ)-TETRAKIS (4-TRIMETHYLAMMONIUM PHENYL) PORPHYRIN
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作者 Guo Cang LI Laboratory of Inorganic Analytical Chemistry, Research Center for Eco-Environmental Sciences, Academia Sinica, Beijing, 100085 《Chinese Chemical Letters》 SCIE CAS CSCD 1993年第11期985-988,共4页
The indirect voltammetric determination of trace sulfate (2.0×10^(-6)~4.0×10^(-5) mol/L ) with the adsorptive complex wave of lead(Ⅱ)-tetrakis (4-trimethylammonium phenyl) porphyrin (PbTTMAPP) is reported.... The indirect voltammetric determination of trace sulfate (2.0×10^(-6)~4.0×10^(-5) mol/L ) with the adsorptive complex wave of lead(Ⅱ)-tetrakis (4-trimethylammonium phenyl) porphyrin (PbTTMAPP) is reported.This method has been used for the analysis of natural waters with satisfactory results. 展开更多
关键词 INDIRECT VOLTAMMETRIC DETERMINATION OF TRACE SULFATE IN NATURAL WATERS WITH THE ADSORPTIVE COMPLEX wave OF LEAD TT Pb TRIMETHYLAMMONIUM PHENYL PORPHYRIN TETRAKIS PP
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Dynamic Properties of Fiber Reinforced Cement Mortar
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作者 唐志平 徐松林 +2 位作者 胡晓军 廖香丽 蔡建 《Journal of Beijing Institute of Technology》 EI CAS 2004年第3期313-316,共4页
Based on the shear wave tracing(SWT) technique proposed by Tang Z P, particle velocity gauge and the dual internal measurement for pressure and shear waves (IMPS) system are applied to investigate the responses of fib... Based on the shear wave tracing(SWT) technique proposed by Tang Z P, particle velocity gauge and the dual internal measurement for pressure and shear waves (IMPS) system are applied to investigate the responses of fiber reinforced cement subjected to impact loading. Series of experiments are conducted. The results show that there exist four critical points, A, B, C, D, in p-V Hugoniot curves. They correspond to the Hugoniot elastic limit (HEL) of the material, the critical point for shear strength limit and transition from damage state to failure state, void collapse, and solid compression, respectively. The critical point B is difficult to be aware of and never reported. However, it can be clearly disclosed with SWT method. Based on the analyses of shear strength, it can be concluded that the transversal wave, especially the unloading transversal wave, is especially important for the dynamic damage investigation of brittle materials. 展开更多
关键词 impact mechanics fiber reinforced cement shear wave tracing technique void collapse
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A simple and effective model for Jones matrix to evaluate the transmission performance of Savart polariscope
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作者 吴海英 张淳民 李杰 《Chinese Physics B》 SCIE EI CAS CSCD 2010年第11期381-388,共8页
Starting from the wave normal tracing treatment in the Savart polariscope that relates the Jones matrix to its transmission performance, this paper establishes a simple and effective model for the Jones matrix at an a... Starting from the wave normal tracing treatment in the Savart polariscope that relates the Jones matrix to its transmission performance, this paper establishes a simple and effective model for the Jones matrix at an arbitrary incidence in the spatial domain. Analytical expressions of all the matrix components are determined with the consideration of all the main impact factors. This model needs only a few parameters hence it is convenient to be employed to evaluate the propagation performance of any birefringent optical system. The simulated results obtained with it demonstrate that this model gives a precise representation of the characteristic of light propagation in the Savart polariscope. This would provide useful suggestions for the design, calibration, and performance improvement of any other birefringent polarisation element and optical system. 展开更多
关键词 wave normal tracing method Jones matrix transmission performance Savart polariscope
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Theoretical Study of ECRH Heating Of HL-2A Tokamak Plasma
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作者 SHI Yingtian SHI Bingren 《Southwestern Institute of Physics Annual Report》 2005年第1期137-139,共3页
Electron cyclotron resonance heating (ECRH) is one of the main auxiliary heating schemes for the HL-2A tokamak. Routinely, the ohmic heating can provide a heating power about 300-450 kW in this device ( estimated f... Electron cyclotron resonance heating (ECRH) is one of the main auxiliary heating schemes for the HL-2A tokamak. Routinely, the ohmic heating can provide a heating power about 300-450 kW in this device ( estimated from that the total toroidal current is about 300 kA while the totoidal voltage is 1-1.5 V). The total power for the ECRH now is 1 MW and in future 2 MW. 展开更多
关键词 Electron cyclotron ordinary wave heating wave trace wave power deposit
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