Search Results - black layer
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61
Tephrostratigraphy of Jurassic-Cretaceous boundary beds of Western Siberia
Published 2022-12-01Get full textThe age of tuffaceous interlayers, represented by tuffs and tuffites, which are common in the Upper Jurassic-Lower Cretaceous deposits of Western Siberia (the Bazhenovo, Tutleim and Frolov Formations), is discussed. The nature of these interlayers is associated with the subglobal (transfer of more t...
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Participatory Visual Methods and the Mobilization of Community Knowledge: Working Towards Community-Derived Disaster Risk Management in the Context of Advancing Climate Change
Published 2025-05-01Get full textUnderstanding climate-related challenges and generating effective interventions against them often lacks the knowledge of those who directly experience those challenges as a lived reality. We use the ‘Water and Fire’ project as an example of a research process undertaken to mobilize community knowl...
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63
Some features of the structure of the mantle of the Eastern Mediterranean and their geodynamic interpretation
Published 2016-02-01“…From this area down-welling begins which can be traced on latitude sections of 35—45° N as an almost continuous inclined layer of ~1100 km width and ~ 1900 km length. Down-welling submerges from a depth of 450—550 km at Moesian and Aegean micro-plates area to a depth of 1600—1900 km beneath the East Black Sea, Anatolian micro-plates and the northern part of the Arabian plate. …”We consider specific velocity anomalies and the corresponding mantle structures of the East Mediterranean-Black Sea-Caspian region. The anomalies are located on latitudinal and longitudinal seismic tomography sections obtained by constructing 3D P-velocity model of Eurasia applying the Taylor appro...
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64
EVOLUTION OF THE HUMUS CLAYEY MATERIAL OF THE CHERNOZEM HORIZON DURING LAND RECLAMATION OF SOLONETZES BY GROUNDING
Published 2011-12-01“…Under the influence of the saline process (sodium exchange rate of 5-15% and specific electrical conductivity of the extract from the water-saturated paste ECse < 2 dSm/m) the well aggregated black earth material used for soil reclamation by means of hydromorphous black earth salt complexes starts to turn into a peptized state and is evolutionarily transformed into a texture-differentiated profile of saline soil. …”Under the influence of the saline process (sodium exchange rate of 5-15% and specific electrical conductivity of the extract from the water-saturated paste ECse < 2 dSm/m) the well aggregated black earth material used for soil reclamation by means of hydromorphous black earth salt complexes s...
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65
Once again about the nature of the Crimean gravity anomaly
Published 2010-12-01“…A map of Bouguer’s anomalіes at the densіty of the іntermedіate layer of 2,3 g/cm3 and a map of resіdual anomalіes receіved after theіr averagіng іn a slіdіng square wіndow of 24×24 km was buіlt. …”Materіals of gravіmetrіc survey of the scale 1:50 000 of the Crіmean penіnsula are generalіzed here. A map of Bouguer’s anomalіes at the densіty of the іntermedіate layer of 2,3 g/cm3 and a map of resіdual anomalіes receіved after theіr averagіng іn a slіdіng square wіndow of 24×24 km was buіlt. Con...
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66
THE QUALITATIVE CHARACTERISTIC OF PHENOLiC SUBSTANCES IN ADAPTOGENIC REMEDY
Published 2012-07-01“…(hyperoside), leaves black of Bergenia crassifolia (L.) Fritsch. (rutin, gallic acid), inflorescences of Calendula officinalis L. …”The basic phenolic compounds of components of the adaptogenic remedy Adaptophyte were identified by using thin layer chromatographic method with corresponding mobile phases that allow to confirm presence herb of Polygonum, aviculare L. (hyperoside), leaves black of Bergenia crassifolia (L.) Fritsch....
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67
Characteristics of the material composition of atmospheric suspensions in Birobidzhan city
Published 2013-05-01“…In an inspection pure zone, despite removal from dusting sources, black and metallic (Fe, Ti, Co, W) particles are found. …”The article presents the results of research of nano- and microparticles of the atmospheric suspensions containing in snow of Birobidzhan in winter of 2011/2012 by means of scanning electronic microscopy with the power dispersive analysis. To exclude secondary pollution by anthropogenous aerosols te...
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68
Landscape-Epidemiological Zoning of the Krasnodar Territory and the Republic of Adygea by Tularemia
Published 2019-07-01“…Utilized were archival data of the Black Sea Plague Control station over the period of 1946–2017 and plague Control Center of the Rospotrebnadzor. …”Objective of the study was epizootic-epidemiological zoning of the area of Krasnodar Territory and the Republic of Adygea by manifestations of tularemia to determine the level of epidemic hazard of each zone.Materials and methods. Utilized were archival data of the Black Sea Plague Control station o...
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CHANGES IN THE CONTENT AND QUALITY OF ORGANIC MATTER IN AGRARIAN SOILS OF NON-CHERNOZEM ZONE DEPENDING ON ANTHROPOGENIC IMPACT
Published 2010-06-01“…On the basis of experimental and literary data the assessment of humus state of arable layer of differently cultivated typical agrarian-grey heavy loamy non-eroidated soils of the center of the Non-Black Earth zone of Russia was carried out. …”On the basis of experimental and literary data the assessment of humus state of arable layer of differently cultivated typical agrarian-grey heavy loamy non-eroidated soils of the center of the Non-Black Earth zone of Russia was carried out. The gradations of humus content corresponding to the diffe...
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70
Microplastics Abundance and Spatial Distribution in Bayinbuluk Alpine Swamp Meadow
Published 2025-06-01“…Microplastic colors included black, yellow, red, blue, green, and clear, with black accounting for 70.16%, significantly more abundant than other colors (<i>p</i> < 0.05). …”In order to investigate the current pollution status and distribution characteristics of soil microplastics (MPs) in Bayinbuluk alpine swamp meadow, soil samples of different depths were collected from the study area. The physicochemical properties of the soil, as well as the abundance and morpholog...
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71
Photothermal magnetic Janus fabric vs cast membranes and their application in solar-based desalination
Published 2025-06-01“…The nanoparticles were integrated into the PcH/PES blend in two ways: (1) as a coating layer on the prepared fibers, and (2) both as a coating layer and dispersed within the PcH/PES polymer dope. …”Abstract Water shortage poses a significant global challenge, and there is a pressing need for effective and sustainable desalination technologies that do not require brine disposal. In this study, we fabricated fiber membranes using a mixture of poly(vinylidene fluoride)-co-hexafluoropropylene (PcH...
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72
On positive experience in application of ferroalloys under microarc thermochemical treatment
Published 2016-12-01“…A steel article is placed into the black coal powder and is heated by transmission of the electric current. …”The aim of the research is to study the possibility of the accelerated formation of a highly-rigid carbide coating on the surface of steel products. The use of the microarc thermochemical treatment technology is proposed. A steel article is placed into the black coal powder and is heated by transmis...
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73
Productivity of corn grown in the crop rotation and as monoculture under long-term fertilizing
Published 2018-05-01“…In the soil layer of 60-80 cm there were no significant differences in the amount of organic carbon.…”Productivity of corn grown in the crop rotation and as monoculture under long-term fertilizing In 1971-2015 on the Voronezh leached black earth there were conducted the researches of the effect of long-term use of various kinds, doses, combinations of fertilizers in the 10 crop rotation sequences an...
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74
DYNAMICS OF THE CONTENTS OF THE MAIN ELEMENTS OF NUTRITION AND PRODUCTIVITY OF WINTER SOFT WHEAT DEPENDING ON THE PRIMARY METHOD OF TILLAGE
Published 2018-06-01“…Under the minimum tillage changeable potassium is accumulated in the top layer of soil, the subsoil and moldboard tillage promotes the process of mineralization of the whole arable layer and leads to a uniform accumulation of available potassium in the top layer of soil. …”The long-term trials in the southern part of theRostovregion showed that the primary method of tillage had a great effect on the dynamics of the contents of the main elements of nutrition and productivity of winter soft wheat. The experiments were started with 4 crop rotation sequences in 2007 on th...
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75
Forecrops and sowing dates of the winter bread wheat variety ‘Yubiley Dona’ in the southern part of the Rostov region
Published 2022-09-01“…The variety ‘Yubiley Dona’ showed its adaptability to the sowing dates when sown in black fallow. At the same time, there was identified a positive effect of the sowing in black fallow on September 20 and 30, where the productivity level of the variety reached 6.92–6.95 t/ha, and there was obtained the largest conditionally net income of 62058–62732 rubles/ha. …”The current paper has presented the results of the study conducted in the southern part of the Rostov region by the Agricultural Research Center “Donskoy” in 2019–2021. The purpose of the work was to identify how grain productivity and its qualitative indicators of the winter bread wheat variety ‘Yu...
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76
Application of chemography for evaluating the workability of hard alloy cutting plates
Published 2020-04-01“…The effect is determined by the initial imperfection of the structure of the surface layer of the material and the increase in the defectiveness of the carbide material under the influence of thermobaric loading during the operation of the tool. …”Abstract: An approach to assessing the performance of carbide cutting inserts based on fixing changes in the defectiveness of its structure is proposed. The assessment is based on the phenomenon of activation of inhomogeneous chemical processes at extremely low concentrations of substances that occu...
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77
Effect of different mulching materials on soil properties and growth in the early stage of maize
Published 2015-05-01“…A flat plot without mulch was used as a control.Our study results showed that, from seedling stage to the large bell stage of maize, the average temperature in 10 cm depth soil layer of white film and black film treatments was 1.3℃ and 2.2℃ significantly higher than that of control, respectively. …”In order to investigate the effect of different mulching materials on soil properties and growth of maize in the early stage, a pot experiment was conducted in dry-farming areas of Ningxia to determine the effects of different mulching materials on soil temperature, soil water, nutrient status and g...
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Density heterogeneity of the Earth’s crust of Ukraine and adjacent territories from three-dimensional gravity modelling
Published 2021-06-01“…The basaltoid type of the crust is predominant in the Black Sea megadepression and adjacent territories. …”The work was performed to study the density heterogeneity of the crust of Ukraine and adjacent regions analyzing detailed 3D gravity models of the following tectonic regions and separate structures: Dnieper-Donets Basin and Donbas, Ingulsky megablock, Golovanivska suture zone, latitudinal zones of...
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79
Molecular dynamics simulation and flame-retardant characterization of steel slag powder-modified styrene-butadiene rubber composites
Published 2025-07-01“…The partial substitution of carbon black with steel slag powder (SSP) in the preparation of steel slag powder-carbon black/styrene-butadiene rubber composites (SSP–CB/SBR) is an effective approach to enhancing the high-value utilization of SSP. …”The partial substitution of carbon black with steel slag powder (SSP) in the preparation of steel slag powder-carbon black/styrene-butadiene rubber composites (SSP–CB/SBR) is an effective approach to enhancing the high-value utilization of SSP. The compatibility of SSP–CB/SBR is fundamental to the d...
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80
Fastest Fish Shapes and Optimal Supercavitating and Hypersonic Bodies of Revolution
Published 2020-11-01“…The best swimmers have a streamlined shape that provides a flow pattern without boundary layer separation and delays the laminar-to-turbulent transition. …”Background. The best swimmers have a streamlined shape that provides a flow pattern without boundary layer separation and delays the laminar-to-turbulent transition. Their shape itself could be the reason of small drag and high locomotion velocity. The fastest fish, e.g., sailfish, swordfish, black...
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