7,641 research outputs found
Resonantly suppressed transmission and anomalously enhanced light absorption in ultrathin metal films
We study light diffraction in the periodically modulated ultrathin metal
films both analytically and numerically. Without modulation these films are
almost transparent. The periodicity results in the anomalous effects, such as
suppression of the transmittance accompanied by a strong enhancement of the
absorptivity and specular reflectivity, due to excitation of the surface
plasmon polaritons. These phenomena are opposite to the widely known enhanced
transparency of periodically modulated optically thick metal films. Our
theoretical analysis can be a starting point for the experimental investigation
of these intriguing phenomena.Comment: 4 pages, 5 figure
Formation of a surface–sandwich structure in Pd-Ni nanoparticles by interdiffusion: Formation of a surface–sandwich structure in Pd-Ni nanoparticlesby interdiffusion: atomistic modelling
Recent progress in the simulation of diffusion associated with hollow and Bi-metallic nanoparticles
In this paper, we review the recent understanding gained by kinetic Monte Carlo and molecular dynamics simulation and related theory of the diffusion processes involved in 1) the formation and later shrinkage of hollow nanoparticles and 2) the formation of segregated bi-metallic nanoparticles
Analytical and kinetic Monte–Carlo study shrinkage by vacancy diffusion of hollow nanospheres and nanotubes
Influence of antidysbiotic drugs on the liver of rats with experimental non-alcoholic steatohepatitis
High-fat diets combined with the introduction of lincomycin causes the development of steatohepatitis. Introduction antidysbiotic drugs (pro- and prebiotics) has a therapeutic effect
Electrochemical operational principles and analytical performance of Pd-based amperometric nanobiosensors
Palladium nanoparticles (Pd-NPs) have been approved as an effective catalyst for hydrogen peroxide
decomposition which is released during specific enzymatic reactions. However, the general operational
principles and electrochemical performance of Pd-NPs-based nanobiosensors have been poorly
exploited. Here, the electrochemical behavior of oxidase-associated peroxide oxidation co-catalysis of
the modelled microanalytical system based on screen-printed electrodes modified by electroplated PdNPs as an electrocatalyst, glucose oxidase (GOx) or alcohol oxidase (AOx) as a bioreceptor and the
ionomer Nafion as a polymeric binding agent was studied in detail. The impact of palladium surface
oxides and adsorbed oxygen on the activity and product selectivity in an oxidase type of nanobiosensor
was ascertained. To avoid PdO and oxygen electroreduction affecting the entire amperometric response
of Pd-NPs-based nanobiosensors, a special two-step polarization procedure was proposed. Under the
established electrochemical conditions, Pd-NPs-based nanobiosensors with encapsulated oxidases
showed a wide dynamic range towards selective bioanalyte detection, excellent basic line stability, accuracy and resistance to the presence of interfering electrochemical species. This work can serve as a
guideline for the search and validation of operational principles of novel biosensors based on
nanoparticles
Phase Diagram of Multilayer Magnetic Structures
Multilayer "ferromagnet-layered antiferromagnet" (Fe/Cr) structures
frustrated due to the roughness of layer interfaces are studied by numerical
modeling methods. The "thickness-roughness" phase diagrams for the case of thin
ferromagnetic film on the surface of bulk antiferromagnet and for two
ferromagnetic layers separated by an antiferromagnetic interlayer are obtained
and the order parameter distributions for all phases are found. The phase
transitions nature in such systems is considered. The range of applicability
for the "magnetic proximity model" proposed by Slonczewski is evaluated.Comment: 8 pages, 8 figure
SOCIAL-PSYCHOLOGICAL ADAPTATION IN ORGANIZATIONS OF PERM NETWORK BUSINESS
The article deals with actual problems of workers' adaptation in the conditions of modern network business organizations as one of the elements of the application of a scientific approach for the growth of labor productivity. The article is considering from the standpoint of interdisciplinary theoretical analysis and consideration of the results of empirical research aimed at studying this phenomenon, the features of labor adaptation of employees of the Russian network business and the factors that determine them are analyzed. The content of the structure of social- psychological adaptation is given in the article, the types of social-psychological adaptation of employees employed in the network business as part of the process of labor adaptation are identified and the main factors that form these types are identified. In addition, the substantive dependence of the quality of work activity and the daily vital activity of the employee on the level of his labor adaptation has been reasonably demonstrated
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