Analysis of the performance and economic parameters of different types of solar panels taking into account degradation processes

Analysis of the operational and economic parameters of various types of solar panels, taking into account their degradation. An inspection of literary sources of solar panels was carried out. The types of solar panels, their advantages and disadvantages are described in detail. An analysis of the degradation of solar panels was carried out. The calculation is made and graphs of degradation of solar panels are given. In the feasibility study, capital investment calculations were carried out for the introduction of two network stations with a capacity of 30 kW, with various types of solar panels. Scientific novelty lies in the analysis of the degradation of various types of solar panels

Evidence for three Kππ resonant states below 1.4 GeV in K+p reactions at 5 GeV/c

The study of K+p reactions at an incident momentum of 4.97 GeV/c suggests that the wide enhancement in the (Kππ)+ mass spectrum may be split into several resonant states. In particular, examination of the K*(892)π decay mode indicates the existence of the states K*(1230), K*(1280) and K*(1320), in addition to the well known K*(1420). The K*(1230) and K*(1320) have the properties expected from 1+ states produced by 0+ exchange. © 1967.SCOPUS: ar.jinfo:eu-repo/semantics/publishe

Anticorrosion Properties of Modified Nano-TiO2 Films Prepared by Sol-Gel Method

National High-Tech Research and Development Program of China (863) [2009AA03Z327]; National Natural Science Foundation of China [21073151, 21173177]TiO2 and B-Fe-Ce-modified TiO2 films were synthesized on the surfaces of 316L stainless steel (316L SS) substrates using a sol-gel and dip-coating method. The properties of the films were characterized by field emission scanning electron microscopy, atomic force microscopy, Raman spectroscopy and energy dispersive spectrometry. The corrosion resistance of the films and their ability to protect stainless steel were investigated by electrochemical impedance spectroscopy and potentiodynamic polarization curves. Both TiO2 and B-Fe-Ce-modified TiO2 films were composed of anatase nanoparticles about 15 and 10 nm in diameter, respectively. Impedance spectra of the stainless steel substrates coated TiO2 films contained semicircles for capacitive reactance in 0.5 mol . L-1 NaCl solution, but the charge transfer resistance of the B-Fe-Ce-TiO2/316L SS electrode was higher than that of the TiO2/316L SS electrode. The potentiodynamic anodic polarization curve of the B-Fe-Ce-TiO2/316L SS electrode showed a larger stable passive region and a higher breakdown potential than the TiO2/316L SS electrode, indicating that the modified film had better corrosion resistance and protective properties for 316L SS

Evidence for three Kππ K\pi \pi resonant states below 1.4 GeV in K+p K^{+} p reactions at 5 GeV/c

The study of K+p reactions at an incident momentum of 4.97 GeV/c suggests that the wide enhancement in the (Kππ)+ mass spectrum may be split into several resonant states. In particular, examination of the K*(892)π decay mode indicates the existence of the states K*(1230), K*(1280) and K*(1320), in addition to the well known K*(1420). The K*(1230) and K*(1320) have the properties expected from 1+ states produced by 0+ exchange. © 1967.SCOPUS: ar.jinfo:eu-repo/semantics/publishe