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1.
We find that the Laplace sequences of surfaces of period n in projective space P
n–1 have two types, while type II occurs only for even n. The integrability condition of the fundamental equations of these two types have the same form
When all
i
= 1, the above equations become two-dimensional Toda equations. Darboux transformations are used to obtain explicit solutions to the above equations and the Laplace sequences of surfaces. Two examples in P
3 of types I and II are constructed. 相似文献
2.
The production of charmed mesons
,D
±
, andD
*±
is studied in a sample of 478,000 hadronicZ decays. The production rates are measured to be
相似文献
3.
Using the total radius of alkaline fluorides and sodium halides and their experimental total enthalpy values, absolute hydration
enthalpies of sodium and fluoride ions ( and ) were previously calculated. Also, by the help of data of sodium and fluoride ions for all alkaline metal ions and halides
absolute hydration enthalpies were determined.
4.
R. R. Adzhimambetov I. Sh. Muzhdabaev A. T. Tursunov É. É. Khalilov 《Technical Physics》2003,48(8):1020-1023
Laser resonant multistep atomic photoionization is employed to measure evaporation rates and saturated vapor pressures of cadmium sulfide and pure cadmium in temperature ranges of 585–950 and 350–535 K, respectively. It is shown that CdS thermally dissociates into Cd atoms and S2 molecules. The photoionization of cadmium atoms follows the scheme The minimal pressure of pure cadmium is found to be 10?11 mm Hg. 相似文献
$5s^1 S_0 \xrightarrow{{\lambda _1 = 326.1nm}}5p^3 P_1 \xrightarrow{{\lambda _2 = 479.9nm}}6s^3 S_1 \xrightarrow{{\lambda _3 = 488.1nm}}17p^3 P_2 + (\varepsilon = 12kV/cm) \to Cd^ + + e^ - .$ 5.
Hugo Parr 《Zeitschrift für Physik B Condensed Matter》1976,25(4):359-361
We have calculated analytically the superheating fieldH
sh
for bulk superconductors, correct to second order in. We find
, which agrees well with numerical computations for<0.5. The surface order parameter is
, and the penetration depth is
. 相似文献
6.
Shi-Hai Dong 《International Journal of Theoretical Physics》2000,39(6):1529-1541
The Levinson theorem for the one-dimensional Schrödinger equation with both local and the nonlocal symmetric potentials is established by the Sturm–Liouville theorem. The critical case where the Schro;audinger equation has a finite zero-energy solution is also analyzed. It is shown that the number n
+ (n
–) of bound states with even (odd) parity is related to the phase shift +(0)[–(0)] of the scattering states with the same parity at zero momentum as
7.
ángel Ballesteros Alberto Enciso Francisco J. Herranz Orlando Ragnisco Danilo Riglioni 《International Journal of Theoretical Physics》2011,50(7):2268-2277
We consider the classical superintegrable Hamiltonian system given by
|