Associated data on the physicochemical properties of pedosediments, climatic and dendrochronological indicators for palaeogeographic reconstructions

Palaeogeographic markers can be justified among a large number of geochemical indicators in separate layers of pedosediments. Using individual of macroelements and trace elements as part of complex geochemical relationships and indicators allows us to determine the geochemical associations of elements that diagnose migration of the sediments at the trans-eluvial catena

Postantique soils as a source of land use information: a case study of an ancient greek agricultural area on the Northern Black Sea coast

This paper explores ancient land-use practices in order to reconstruct the original parameters of the land division system, as well as agricultural techniques employed. For postantique agricultural landscapes, an integrated geoarchaeological approach that includes GIS and remote sensing methodologies, in-field study of microrelief and soil registrograms, pedochronological dating technique, and physicochemical, geochemical, and biomorphic soil analyses has been developed and teste

Investigation of characteristics and modernization of the design exhaust tract gas turbine and gas compressors units.

The project considers the main elements of design of exhaust tract gas turbine and gas compressors units and their influence on the flow of exhaust gases. The methods for reducing the hydraulic losses in exhaust units are mentioned.В работе рассматриваются основные элементы конструкции выхлопного тракта газотурбинного и газоперекачивающего агрегата и влияние их на характер течения уходящих газов. Приводятся методы снижения гидравлических потерь в выхлопных патрубках агрегатов

Vortex Interferometric Microscopy with Laguerre-Gaussian Beams

In the present research, we discuss the results of analysis of coherent light beams carrying an optical vortex and propagating through the isotropic medium with a complex surface microrelief and its application to super resolution microscopy. It was shown, that phase analysis of singular beam with single charged centered optical vortex allow to retrieve information about sample surface relief. High spatial resolution caused by vortex helical phase sensitivity to disturbances in wave front after reflection or spreading through studying sample, which can be optically transparent or have a reflecting surface. This method applicable for non-destructive testing of live cells and biological tissues in real-time regime with exceeding optical diffraction limit. Vertical resolution of a microscope based on the phase singularity of Laguerre-Gaussian beams of low order can be achieved down to 5,27 nm for helium-neon laser source for optically transparent and reflecting surfaces. Keywords: optical vortex, phase, microscopy, singularit

Using vegetation indices to identify high chlorophyll tree cover in floodplains for carbon sequestration

The dynamics of changes of Chlorophyll vegetation index and Red-edge chlorophyll index (CIRE) for plant cover during the springsummer period on river floodplains has been studied. Landscape sections with high photosynthetic activity were identified through GIS analysi

Digitalization of the agro-industrial complex in the Russian Federation: Current status and development prospects

The article is concerned with the current state of digitalisation of the agro-industrial complex (AIC) in the Russian Federation. It lists a number of legal instruments that have been approved by the legislative authorities and establish the digitalisation trends of the agro-industrial complex at the federal and regional level

Ab initio-based prediction and TEM study of silicide precipitation in titanium

In this work we applied our recently developed thermodynamic model to predict the structure of Ti-Si precipitates in α-Ti matrix of the Ti-Si alloy with total Si concentration of 0.7 wt.%. We considered all prominent Ti-Si phases such as Ti₃Si; Ti₅Si₃; Ti₅Si₄; TiSi and two TiSi₂ phases and discovered that formation of the Ti₅Si₃ phase is more favorable than that of the Ti₃Si in contradiction with the known phase diagrams. Theoretical result was confirmed by experimental investigation of microstructure and phase composition of the model Ti-0.7Si alloy annealed at 873 K for 10 h. Indeed, the only observed phase has hexagonal Ti₅Si₃ structure. To ensure the completeness of the results we calculated ab initio elastic constants for all considered Ti-Si phase

Differentiating soils from arable and fallow land using spectrometry

In this study, we analyse soil system responses-in particular, the colours of soils resulting from different types of land use (arable land and residential areas) caused by the construction of an ancient boundary rampart near a multilayer monument dating from between prehistory and the Middle Ages within the boundaries of the Bosporus Kingdom (Eastern Crimea)-in an area of modern and ancient (4th–2nd centuries BC) land use (Northwestern Crimea