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排序方式: 共有323条查询结果,搜索用时 15 毫秒
1.
JI Babitskaya IA Budashov SF Chernov IN Kurochkin NV Doroshenko SV Zubov 《Canadian Metallurgical Quarterly》1997,10(6):689-697
A technique for forming Langmuir films from antibodies based on an amphiphilic polyelectrolyte was developed. The physicochemical and immunochemical properties of the Langmuir films obtained were studied. The interaction of HBsAg with the films was found to be described by a model with one binding site, whereas that of HBsAg with antibodies adsorbed on a polystyrene plate, by a model with a positive cooperativity. The use of the novel Langmuir films from antibodies increases the sensitivity of the immunoenzyme assay. 相似文献
2.
3.
Gnevko A. I. Kazakov N. A. Sultanovskii V. I. Zubov O. E. 《Metal Science and Heat Treatment》2002,44(1-2):94-94
Metal Science and Heat Treatment - 相似文献
4.
Radical copolymerization is considered theoretically taking into account the effect of complexing on the configurational statistics of macromolecules formed. Akinetic model has been developed that considers, apart from the ordinary addition of single monomer units to a propagating chain, the possible addition of monomer unit pairs along with a complexing agent in the form of a ternary complex. Within the framework of this model, the problem of calculating the probabilities of formation of any sequences of monomer units (taking into account their microtacticity) in a macromolecule has been rigorously solved as well as the problem of finding the composition distribution of the copolymer formed. It has been shown that this distribution is described by a conventional Gauss law and the appropriate parameters are given. Possible generalizations of the suggested approach are indicated. 相似文献
5.
An experimental study of the self-diffusion and nuclear magnetic relaxation of poly(amidoamine) dendrimers with hydroxyl surface groups (PAMAM-OH) dissolved in methanol over a wide range of concentration (?) is reported. It is shown that experimental concentration dependences of PAMAM-OH self-diffusion coefficients (D) can be reduced to the so-called generalized ? dependence. Over macromolecular concentration range studied, the generalized concentration dependence of PAMAM-OH D coincides with analogous curve obtained for poly(allylcarbosilane) dendrimers of high generations. This result confirms the existence of common regularities of the dendritic macromolecule self-diffusion, and their independence of the individual physicochemical and structural properties of dendrimer, solvent, and features of their interactions in the given systems. The concentration dependence of the PAMAM-OH diffusion also exhibits a clear signature of an inflexible molecule. 相似文献
6.
M. T. Borowiec V. P. Dyakonov A. Jedrzejczak V. I. Markovich A. A. Pavlyuk H. Szymczak E. E. Zubov M. Załeski 《Journal of Low Temperature Physics》1998,110(5-6):1003-1011
The specific heat C(T) of the monoclinic RbDy(WO
4
)
2
crystal has been studied at very low temperatures 0.2T1.9 K and in magnetic fields 0H0.38 T. The Neel temperature was shown to be equal to TN = 0.818 ± 0.005 K. The experimental value of the effective exchange parameter was obtained to be equal to J/k = – 0.798 K. The C T) dependence below Neel temperature 0.5TN0.99TN
) is well described by 2D Ising model, whereas in the temperature region close above TN
(1.01 TN2TN) it can be described by neither 2D, nor 3D Ising model. The experimental and theoretical H-TN
diagrams for field
H a
are in a reasonable agreement for simple quadratic lattice. 相似文献
7.
A. V. Bogachev E. A. Vorob’eva N. E. Zubov E. A. Mikrin M. Sh. Misrikhanov V. N. Ryabchenko S. N. Timakov 《Journal of Computer and Systems Sciences International》2011,50(3):483-490
The problem of gravitational unloading of the angular momentum of inertial actuators of a spacecraft in the pitch channel
for circular and elliptic orbits is considered using the band theory of modal control. Control laws for gravitational unloading
and stabilization of a given spacecraft position unambiguously determined by the object parameters and given coefficients
of characteristic equation are obtained. 相似文献
8.
Attempts to carry out the hydroformylation of allyldiethylamine homogeneously catalyzed by rhodium complexes led to unexpected formation of N,N,N,N-tetraethyl-1,4-diaminobutane and 4-(diethylamino)-1-butanole as final products. The role of the catalyst on the product formation and the reaction mechanism are briefly discussed. 相似文献
9.
We propose a method for the recalculation of dynamic stresses from a photoelastic model to a real solid in plane problems of the mechanics of orthotropic bodies. To estimate the accuracy of the method, we recalculate stresses for a problem with known theoretical solution. 相似文献
10.
Test results for different high-strength steel specimens in static and impact tension and compression over a wide range of strain rates were summarized. These data were used to calculate the generalized deformation curve. The calculations based on this curve were compared with the experimental data on impact indentation with the conical indenter to evaluate the applicability of this method for studying the behavior of metals at high strain rates. 相似文献