This work gives an analysis of 317 inelastic interaction events. The angular and momenta distributions, etc., in the pion-nucleon centre of mass system (C.M.S.), of the secondary charged particles resulted from the collisions agree with the results of previous works and may be compared with the theoretical calculation based on the mechanism of peripheral collision.Those events in which the seconda...
Cucurbitine is a natural amino acid newly found as the effective component in the crude drug, Cucurbita moschata Duch, which inhibits the growth of immature Schisto soma japonicum. This paper describes the X-ray diffraction studies on the structure of the perchlorate of the amino acid. Preliminary examinations show that the crystal belongs to the monoclinic system with space group P21 and unit cel...
It is proved that the S matrix element S(λ, k) for the z-4 repulsive potential → 1 as |λ|→∞ in the sector 0 ≤| argλ | <π/2-ε and that it has infinitely many Reggepoles in a small angle neighbourhood of the imaginary axis with their real and imaginary parts approaching ∞ simultaneously. Ordinary double dispersion relation does not hold in this case.
In this paper the various properties of the rare-earth even-even nuclei (intrinsic excitation spectra, β-decay, and even-odd mass differences, etc.) are analysed with the new method presented in reference [10]. For this purpose, the single-particle levels have to be determined. It is found that on the basis of Nilsson's level scheme, with suitably chosen parameters μ and k, the spins and parities ...
The process of hydrothermal crystallization and dissolution of quartz crystals have been investigated by means of designed experiments. The possible structures of the dissolved molecules and the forms of their condensation and process of conversion before and during crystallization have been proposed. The normal and effective growth of crystals was realized by the temperature difference method.Som...
In this article, we have introduced a new Regge trajectory, αq, with vacuum quantum numbers, αq(0) = αp(0) = 1, but α′q(0)≠ α′p(0). αq as well as αp takes part in the high energy non-exchange processes, and they interfere with each other. The consequence of the two vacuum Regge trajectories is equivalent to an effective trajectory αe, the slope of which at zero energy α′e(0) is dependent on the pr...
The field distribution and electron-optical properties of electrostatically-focused image converter with plane cathode are precisely determined by means of resistance network analogue and numerical computation. The axial potential distribution is found to be expressible by the empirical formula φ = A sinh kz. Graphs are given, showing the dependence of coefficients A, k, the position of Gauss-imag...
According to the theory of the rate process of diffusion of atoms in lattice, the kinetics of long-range ordering and short-range ordering under the condition of zero long-range order in the nearest neighbour approximation has been investigated. The results obtained agree qualitatively with and quantitatively similar to the conclusions derived from the past experiments and calculations. The result...
Ausgehend von der Kohn-Nonnenmacher-Spenkeschen Ersatzschaltung werden das Schrotrauschen und thermische Rauschen in einer P-N-Fl?chendiode bei verschieden gro?em Injektionsstrom untersucht und Formeln fur deren ?quivalenten Rauschwiderstand hergeleitet.
The deviation from Cauchy's relation and the difference between the electrostaticand the optical dielectric constant for calcium fluoride are calculated respectively by usingKun Huang's method. The results of neglecting the electronic polarization in the ionic crystal are given as follows: c12-c44=0.58×1011 dyne/cm2, ε- ε0 = 3.53. The results of considering the electronic polarization in the ionic...
This paper gives a generalized statement of the Bremmer theory in the case that the medium and the incident wave are of general form (it is called the local principle of the process of wave motion) and proves it schematically. The Bremmer serieses of three concrete cases are deduced in a way similar to that used by Bremmer. These are:1) Planely stratified medium, obliquely incident plane wave;2) C...
Internal friction peaks in two types of pure silver and six types of silver alloys were investigated with a torsion pendulum of about 1 cps. Comparisons were made on the variations of internal friction of both single and polycrystalline specimens of different compositions before and after different degrees of internal oxidation.Experimental results show: (1) The peak temperature of high purity sil...
Using etch-figure technique, we have directly observed dislocation structure of sub-boundaries in electron-beam zone-melted molybdenum single crystals. A thorough analysis of experimental results are given, these are further compared with the deductions derived from the Frank's formula for subboundaries, and the theoretical predictions are fully verified.The directions of parallel etch-lines obser...