Its viscosity was 141mPa·s,expansion rate was 400%~530%,compressive strength was 1.49MPa,and elongation was 150%~218%,its gel time could be adjust,and it had very good adaptability to water with various pH values,moreover it had excellent capability of water containing.
The results show that with the increasing of hardness of 45 steel,its wearing resistance increases considerably when hardness of abrasive(Ha) is higher than hardness of 45 steel(Hm),however,it varys very slowly for Ha
Both oligozoospermic (sperm count < 20×106/ml) and severe teratozoospermic (strict normal sperm morphology ≤5%) men have a very high (>70%) frequency of defective sperm-ZP interaction.
Conclusion The positive rates of all the 5 kits were over 90% and had a very high conformity in detecting anti-HEV IgG in clinical patient with hepatitis E, positive rates of 3.48% to 31.74% were found in detecting the normal persons' sera.
Tests were made on the factors influencing the adsorption effect,which included pH value,adsorption time,temperature,absorbent dosage and the initial concentration of Zn2+. The results showed that carbonate hydroxyapatite had a very good effect of adsorption for Zn2+.
The present calculations,within the local density approximation(LDA),reveal that the O/Si6/SiO2/Si6/O has a quasi-direct bandgap at X point,whereas the Se/Si6/SiO2/Si6/Se has a quite little gap at Г point.
The results show that the main heavy metals are cadmium and arsenic in the areas,and the potential ecological risk index order of heavy metals in sediments from sampling location A to G is Aquite strong.
The transmittance varies between 75% and 35%,and the colouration efficiency at 550nm is 44.8cm2/C. The electrochromic properties are quite stable after 1000 colour/bleach cycles.
After being dipped in artificial saliva for 30d, the residual strength of the soft lining materials with fluorosilicone rubber of mass fractions 9% and 15% was 83% and 89% respectively, which were quite enhanced as compared with that (60%) of the soft lining materials with no fluorosilicone rubber.
The presentations are given in the form of graphs resembling Dynkin diagrams and very similar to the presentations for finite complex reflection groups given in [2].
A* arises quite naturally in problems of summability of the Fourier series at Lebesgue points, whereas Wiener's algebra A of functions with absolutely convergent Fourier series arises when studying the norm convergence of linear means.
A* arises quite naturally in problems of summability of the Fourier series at Lebesgue points, whereas Wiener's algebra A of functions with absolutely convergent Fourier series arises when studying the norm convergence of linear means.
Examples are presented demonstrating that the condition to be Pompeiu in these manifolds is quite different from the corresponding condition for a torus of the same dimension.
In this paper the logical structure of contactless telemechanical system for distributed objects is discussed. A simple method of variable system structure for transmitting and receiving telemechanical information is adopted. The idea is that the information oc-curred in every controlled point (station) and the information of some of those objects,which frequently change their states, are transmitted continually and cyclically, while for other objects their information is transmitted only after any change i...
By surrounding a photo-neutron source of Ra+Ee with a thin spherical sbell of paraffin, a continuous spectrum of scattered neutrons, extending from zero energy to the energies of the primary neutrons is obtained. When a silver detector is exposed to such a spectrum, a part of the neutrons having just the energies at resonance with the silver nuclei is strongly absorbed by the detector and thereby produces the induced β-activity. By measuring the activity of silver and the apparent absorption coefficient of ...
In this paper, as suggested by the classical canonical equations, a new set of the corresponding relativistic equations is set up. Therefrom a relativistic form of Heisenberg's equation is deduced. The rclalivistic Hamiltonian system of a particle according to the formulation here established has been fully discussed and by following it, however, Diracs equation appears naturally as a necessary form of relativistic wave equation tor electron in quantum mechanics. The process of taking square root in Dirac's...