2,188 Result(s)

Article

The decay of¹⁸⁸Re

The γ-ray spectra of¹⁸⁸Re decay have been studied by using two Ge/Li/ spectrometers and a three parameters /E-E-T/ List coincidence system. The energies and relative intensities of 52 γ-rays and cascade relations...

L. Zhou, S. Wen, J. Zhao, B. Yu, B. Han… in Journal of Radioanalytical and Nuclear Che… (1984)

Article

Some radical chemistry from Shanghai

** -Kui Jiang, **ng -Ya Li, Cheng -Xue Zhao… in Reviews of Chemical Intermediates (1986)

Article

Brillouin Scattering Study on the single crystals ofl-arginine phosphate (LAP)

This is the first report representing Brillouin Scattering Studies on single crystals of monoclinic LAP, which is a new organic material very useful for secondary harmonic generation. The crystal elastic const...

Zheng Hao**, Tang **ao, Zhao Mingzhuo… in Zeitschrift für Physik B Condensed Matter (1987)

Article

Studies on ion exchange equilibria and kinetics

The kinetics and equilibria of cation exchange HR+Na⁺=NaR+H⁺ with 001×7 strong acidic resin have been studied. The isotherm for this reaction has been determined, and the rational equilibrium constant, Ka, calcul...

Tao Zuyi, Zhao Aimin, Tong Wengong… in Journal of Radioanalytical and Nuclear Che… (1987)

Article

Studies on ion exchange equilibria and kinetics

The kinetics of cation exchange 2RH+UO ₂ ²⁺ =R₂UO₂+2H⁺ for the forward and reverse reaction with strongly acidic 001×7 resin has been studied. It was found expe...

Zhao Aimin, Tao Zuyi, Tong Wengong… in Journal of Radioanalytical and Nuclear Che… (1987)

Article

120 K superconductivity and the zero-field absorption in the BiCaSrCu₂O_x system

Onset transition temperature (123±1) K was observed in the BiCaSrCu₂O_x bulk materials prepared by means of conventional ceramic technique. The resistance and AC susceptibility measurements show that there are two...

Zhao Min-Guan, Zhao **ao-Ning, Zheng **ao-Lan in Zeitschrift für Physik B Condensed Matter (1988)

Article

Grain boundary Josephson effect in ceramic superconductor GdBa₂Cu₃O_7−y

The current-carrying nature and its response to the weak magnetic field and temperature of the highT _c ceramic superconductor GdBa₂Cu₂O_7−y have been investigated by measuring t...

Y. Zhao, S. F. Sun, Z. P. Su, H. Zhang… in Zeitschrift für Physik B Condensed Matter (1988)

Article

Spin triplet pairing in high temperature superconductors

Various superconductivity mechanisms show that the electron pair is in spin singlet (S=0) belowTc. In contrast with these, our EPR measurements show that the electron pair is in spin triplet (S=1) rather than the...

Zhao Min-Guan, Zhao **ao-Ning, Zeng **ao-Lan in Zeitschrift für Physik B Condensed Matter (1988)

Article

Modulated structure of the superconducting compounds Bi₂Sr₂Ca _n-1Cu _n O _y withn=1 and 2

The incommensurate modulated structures of high-T _c superconducting phases Bi₂Sr₂Ca _n−1Cu _n O _y (n=1 and 2) have been studied using symmetry pr...

J. Q. Li, C. Chen, D. Y. Yang, F. H. Li… in Zeitschrift für Physik B Condensed Matter (1989)

Article

Off-diagonal long-range order and superconducting particle density

Relations between the existence of ODLRO in the reduced density matrixρ _n (for alln≧1) and that of superconducting currents in a hollow cylinder are discussed. Some concrete be...

Gen-Di Pang, Fu-Cho Pu, Bao-Heng Zhao in Zeitschrift für Physik B Condensed Matter (1989)

Article

The hall coefficient of YBa₂Cu₃O_7-x thin films with (100) orientation

The Hall coefficientR _H and the resistivity ρ of an (100) orientated YBa₂Cu₃O_7-x thin film was measured. A very smallR _H was obtained. The resulting carrier density is very different from the widely accepted valu...

Y. Lu, B. R. Zhao, C. W. Yuan, Y. Z. Zhang… in Zeitschrift für Physik B Condensed Matter (1989)

Article

The crystal structure and superconductivity of the new superconducting phase TlSr₂Ca_0.5Er_0.5Cu₂O_6.75

The crystal structure of the superconducting phase TlSr₂Ca_1−xEr_xCu₂O_6.5+x/2 (x=0.5) in the Tl−Sr−Ca−Er−Cu−O system was determined using the X-ray powder diffraction method. It belongs to a primary tetragonal cell...

J. K. Liang, Y. L. Zhang, G. H. Rao… in Zeitschrift für Physik B Condensed Matter (1989)

Article

Determination of²¹⁰Pb and²¹⁰Po in human tissues of Japanese

To determine the levels of²¹⁰Pb and²¹⁰Po in human tissues of people in Japan, various tissue samples were obtained at autopsy from the cadavers of 22 oncologic cases, mainly in Niigata Prefecture in northern Japa...

Y. Takizawa, L. Zhao, M. Yamamoto, T. Abe… in Journal of Radioanalytical and Nuclear Che… (1990)

Article

The induction plasma chemical reactor: Part I. Equilibrium model

A mathematical model is presented for the numerical simulation of the flow, temperature, and concentration fields in an rf plasma chemical reactor. The simulation is performed assuming chemical equilibrium. Th...

G. Y. Zhao, J. Mostaghimi, M. I. Boulos in Plasma Chemistry and Plasma Processing (1990)

Article

Numerical simulation of a free-burning argon arc with copper evaporation from the anode

A free-burning, high-intensity argon arc at atmospheric pressure was modeled during the evaporation of copper vapor from the anode to study the impact of the vapor to the entire plasma region. A uniform and a ...

G. Y. Zhao, M. Dassanayake, K. Etemadi in Plasma Chemistry and Plasma Processing (1990)

Article

The induction plasma chemical reactor: Part II. Kinetic model

A kinetic model has been developed for the prediction of the concentration gelds in an rf plasma reactor. A sample calculation for a SiCl₄/H₂ system is then performed. The model considers the mixing processes alo...

G. Y. Zhao, J. Mostaghimi, M. I. Boulos in Plasma Chemistry and Plasma Processing (1990)

Article

Acylation of alkll 1,4-dimethoxybenzenes by substituted benzoic acids in trifluoroacetic acid

A clean, convenient and highly selective acylation of alkyl 1,4-dimethoxy-benzenes, e.g., 2-methyl-1,4-dimethoxybenzene, by using substituted benzoic acids in dry trifluoroacetic acid has been achieved. The su...

Yue-Fa Gong, Cheng-Xue Zhao, Hong Pen in Research on Chemical Intermediates (1990)

Article

Scavenging effects of chinese herbs and natural health products on active oxygen radicals

Although the clinical efficacy of some Chinese herbs and natural products have been well known for a long time, investigation of their biological effects and reaction mechanisms is just at the very beginning. ...

Wen-Jnan **n, Bao-Lu Zhao, **ao-Jie Li, **g-Wu HoU in Research on Chemical Intermediates (1990)

Article

Brillouin scattering measurement for refractive indices of anisotropic crystals

An experimental method is proposed for measuring the refractive indices of anisotropic crystals. The results of the first measurements are in good agreement with those of other methods.

J. R. Shi, Y. C. Xu, P. Z. Zhou, M. Z. Zhao in Zeitschrift für Physik B Condensed Matter (1990)

Article

Ion exchange of uranium(IV) in hydrochloric acid—Organic solvent mixed media

In this paper, the distribution of U(IV) between a solution and a strong basic anion exchange resin 201×7 in mixed media HCl-methanol, HCl-ethanol, HCl-n-propanol and HCl-acetone has been investigated. The dis...

Zhao Aimin, Zhang Yanlin, Wang Luhuan in Journal of Radioanalytical and Nuclear Chemistry (1990)