18 research outputs found
ORGANIZATION OF STAKEHOLDER ENGAGEMENT AS A FACTOR IN INCREASING THE EFFICIENCY OF CORPORATE GOVERNANCE
The article discusses the issues of corporate interaction organization between stakeholders, which solution directly affects on the quality of corporate governance. Considering the problems of the organization of interaction with stakeholders, the experience of Russian companies to identify the stakeholders and their ranking, as well as the methods of interaction organization with them, the authors conclude that the most important issue related to the assessment of the cooperation effectiveness nowadays has no methodological support
ORGANIZATION OF STAKEHOLDER ENGAGEMENT AS A FACTOR IN INCREASING THE EFFICIENCY OF CORPORATE GOVERNANCE
The article discusses the issues of corporate interaction organization between stakeholders, which solution directly affects on the quality of corporate governance. Considering the problems of the organization of interaction with stakeholders, the experience of Russian companies to identify the stakeholders and their ranking, as well as the methods of interaction organization with them, the authors conclude that the most important issue related to the assessment of the cooperation effectiveness nowadays has no methodological support
Performance of novel CaO-based sorbents in high temperature CO2 capture under RF heating
The problem of CO₂ mitigation on a small and medium scale can be resolved by developing a combined system of CO₂ capture and its consecutive conversion into valuable products. The first stage of CO₂ looping, however, should be reliable, effective and easy to control and radiofrequency heating, as a new advanced technology, can be used to improve the process. CO₂ absorption and desorption RF units can be installed within power plants and powered during the periods of low energy demand thus stabilizing the electrical grid. In this work, a CaO sorbent produced by template synthesis was studied as a sorbent for a CO₂ looping system under RF heating which offers short start-up times, highly controlled operation, high degree of robustness and low price. The sorbent reached its stable CO₂ capacity of 15.4 wt.% already after 10 temperature cycles (650/850 °C) under RF heating. Higher CO₂ desorption rate and lower degree of the sorbent sintering was observed under RF heating as compared to conventional heating
Microstructure, phase composition and hardness of Ti–Au cladding deposited on Ti–6Al–4V substrate by electron beam powder bed fusion method
In this study, a Ti-Au cladding was deposited on a substrate from the Ti-6Al-4V alloy by the electron beam powder bed fusion method in a vacuum. The main goal was to assess the possibility of using titanium powders and gold foils as a feedstock for additive manufacturing of such dental products. The microstructure, chemical element distributions, phase composition and hardness of the formed Ti-Au alloy were studied using optical microscopy, energy dispersive X-ray analysis, as well as X-ray diffraction and nanoindentation tests. Goldcontaining intermetallic compounds were observed through the entire cladding thickness. The alpha-Ti, alpha-Au, AuTi and AuTi3 phases were found, in addition to the Ti3Au one, which provided hardness values greater than those of conventional titanium alloys. It was shown by results of the crystal-geometric and X-ray phase analysis that the AuTi3 phase possessed the most densely packed A15 structure. This fact correlated with the obtained data on the deviation of the atomic volume per ion from Zen's law and the high hardness levels. Metallurgical patterns of the microstructure formation that affected the functional properties of such claddings were discussed and a further research direction was proposed
CoMoNi Catalyst Texture and Surface Properties in Heavy Oil Processing. Part II: Macroporous Sepiolite-Like Mineral
A set of novel CoMoNi
hydrotreating catalysts supported on sepiolite-like
mineral and modified by H<sub>3</sub>PO<sub>4</sub> have been prepared
and studied in hydrodesulfurization (HDS) and hydrodemetallization
(HDM) of heavy Tatar oil with extremely high viscosity and sulfur
content. Catalysts had a multiphase composition, represented by calcium/magnesium
oxides, silicates, or phosphates, and were found to be of great interest
for studying the role of support surface properties in heavy oil hydrotreating.
For monitoring the catalyst properties, all the samples have been
investigated by X-ray diffraction (XRD), X-ray fluorescence spectroscopy
(XFS), X-ray photoelectron spectroscopy (XPS), transmission electron
microscopy (TEM), CO- and CDCl<sub>3</sub>-Fourier transform infrared
(FTIR), mercury porosimetry, and N<sub>2</sub> adsorption methods.
The catalyst with a small phosphate content showed higher initial
HDS conversion due to the more developed specific surface area, increased
Lewis acidity, and better active component distribution; however,
the sulfur removal substantially reduced during 240 h on stream. The
sample with a high amount of phosphates demonstrated better stability,
higher HDM, and hydrocracking/hydroisomerization activity despite
lower acidity and poor active phase dispersion that may be accounted
for by the higher fraction of macropores