Showing papers by "Nanjing University published in 1980"
TL;DR: In this article, the ascending front of a solar surge results from the ejection of plasmoid caused by the Maxwellian stresses of the reconnected field lines in the neutral current sheet above a satellite spot plus the explosive expansion of the matter inside.
10 citations
7 citations
TL;DR: In this article, a mechanism is proposed to account for the U-shaped spectrum of the type IV solar radio burst during the explosive phase of proton flare, which consists of two parts, namely the part of type IV μ burst and that the part IV dm burst.
5 citations
TL;DR: In this article, the authors used the data obtained at 4 observatories at Tianjin, Beijing, Shanghai and Wuhan to calculate the annual Z-term in the variation of latitude.
5 citations
TL;DR: The results of statistical analyses of the radio luminsotiy of 81 pulsars obtained in this paper appear to be in favour of the view that the radio emission originates in regions close to the light cylinder.
4 citations
TL;DR: In this article, it was shown that the projected surface density of solid condensate in the inner portion of the Jupiter region is greater than the mean value in the asteriod region, and the time taken for dust particles to precipitate to become comparable to that in the Asteriod region.
2 citations
TL;DR: In this article, a left-right symmetrical model with four neutral gauge particles obeying S 4 symmetry in their mass generation mechanism was proposed, and the Weinberg-Salam results were obtained with sin 2 θ w fixed naturally to be 0.25.
2 citations
TL;DR: In this article, the authors present a qualitative and quantitative explanation to the steep temperature distribution in terms of the pileup effect of the oscillations in a plasma and the mechanism of wave-particles nonresonant heating.
2 citations
TL;DR: In this article, a second-order, analytical solution for the motion of an artificial satellite of the Earth as perturbed by various factors is given, and the formula for a combined analytical and numerical method is presented.
1 citations
TL;DR: In this article, the radial dispersion of velocities with r through the stability of the density wave in a three-dimensional dish-like galaxy was obtained by direct integration, and the theoretical values of C r and C z were in fair agreement with the observed values.
1 citations
TL;DR: In this paper, the numerical stability of Cowell's method when applied to the Keplerian circular motion was discussed and the critical stepsize hm was given for the PE, PECE and CE algorithms of various orders.
TL;DR: In this paper, the authors applied the conclusions reached in [1] on the permissible regions of motion in the general problem of three bodies are applied to two actual cases: Sun - Jupiter - Saturn and Sun - Neptune - Pluto.
TL;DR: In this article, the authors obtained a new property of the n-dimensional binary undirected de Bruijn graph UB(n) for n ≥ 4, namely, there is a vertex x such that for any other vertex y there exist at least two internally disjoint paths of length at most n - 1 between x and y.
Abstract: The authors obtain a new property of the n-dimensional binary undirected de Bruijn graph UB(n) for n ≥ 4, namely, there is a vertex x such that for any other vertex y there exist at least two internally disjoint paths of length at most n - 1 between x and y in UB(n). The result means that the (n - 1, 2)-dominating number of UB(n) is equal to one if n ≥ 4.
TL;DR: In this paper, a non-conservative Lie transformation is used to establish the theory of tesseral perturbation including the cross terms from the zonal harmonic J 2 with the tessral harmonics.
TL;DR: The effects of Oppolzer terms on the determination of latitude variation, polar motion and declination are discussed in this article, where the authors suggest that the celestial pole may be defined as the intersection of the rotation axis, corrected for the lunisolar polar motion with the celestial sphere.