Search Results - black layer
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Geodynamic features of joint zone of the Eurasian plate and the Alpine-Himalayan belt within the limits of Ukraine and adjacent areas
Published 2014-10-01“…In the upper mantle the sloping layers 150—200 km thick and 200—750 km long were revealed, corresponding to the areas of lithospheric plates (slabs), being submerged into the asthenosphere during different time, since the Permian-Triassic period. …”Based on the analysis of geophysical and geological data of recent 10—15 years the boundaries and inner structure of the transition zone from the Eurasian plate (EAP) to the Alpine- Himalayan folded belt (AHB) extending from the Eastern Carpathians to the Great Caucasus were defined here. DSS (deep...
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Responses of Corn Yield, Soil Microorganisms, and Labile Organic Carbon Fractions Under Integrated Straw Return and Tillage Practices in Black Soil
Published 2025-06-01“…In Northeast China, due to long-term, high-intensity continuous cultivation of black soil, the practice of “overuse with insufficient nurturing” has led to severe degradation of the black soil. …”In Northeast China, due to long-term, high-intensity continuous cultivation of black soil, the practice of “overuse with insufficient nurturing” has led to severe degradation of the black soil. Straw return is a crucial strategy for enhancing soil organic matter (SOM). However, the mechanism of comb...
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43
Effects of Tillage Methods on Carbon and Nitrogen Sequestration and Soil Microbial Stoichiometric Equilibrium in a Black Soil Farmland with Full Return of Straw to the Field
Published 2025-07-01“…Therefore, DTS and NTS are superior tillage methods to improve the quality of the black soil tillage layer, to promote soil microbial carbon and nitrogen balance, and to increase crop yields.…”Long-term irrational farming practices and low return of organic materials to the fields in the black soil area have led to reduced soil carbon and nitrogen stability and nutrient imbalance, which in turn affect soil fertility and crop yields. Straw return is an effective way to enhance soil organic...
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44
Qualitative Performance Indicators of a Ripping-and-Separating Machine for Soil Cultivation
Published 2018-07-01“…(Materials and methods) The author has studied physical and mechanical properties of the soil after its spring cultivation in the conditions of bare (black) fallow. Soil structure and aggregate composition depending on the type of cultivation, the density of soil layers at different times, the dynamics of soil moisture changes in the layers for two months after its spring cultivation have been analyzed as well. …”Pre-sowing soil cultivation aims at forming such a soil structure, which will allow increasing the yield. (Research purpose) To determine the qualitative indicators of an experimental soilcultivating ripping-and-separating rotary machine for optimizing the ploughed soil layer, modifying the stru...
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45
Allerød–Younger Dryas Boundary (12.9–12.8 ka) as a “New” Geochronological Marker in Late Glacial Sediments of the Eastern Baltic Region
Published 2025-06-01“…The organic-rich layer in the Kulikovo section, as well as other similar layers in the Baltic, can be considered a “black mat” phenomenon related to the onset of the Younger Dryas.…”This paper is a contribution to the ongoing debate on the nature and drivers of the abrupt environmental shift at the onset of the Younger Dryas. The goal of this study is to identify key parameters that characterize the Allerød–Younger Dryas boundary, 12.9–12.8 ka in sedimentary sections, and are r...
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Anthocyanins and phenolic compounds in colored wheat grain
Published 2025-06-01“…The present work describes the genetic systems that regulate the biosynthesis and accumulation of anthocyanins in the pericarp and aleurone layer, the presence of which imparts purple, blue and black grain color. …”Wheat is an extremely important and preferred source of human nutrition in many regions of the world. The production of biofortified colored-grain wheat varieties, which are known to contain a range of biologically active compounds, including anthocyanins, phenolic compounds, vitamins and minerals,...
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An Isospora Species (Apicomplexa: Eimeriidae) Identified From a Black‐Faced Cuckoo‐Shrike (Coracina novaehollandiae) (Gmelin, 1789) (Passeriformes: Campephagidae) in Western Austra...
Published 2025-04-01“…The oocyst wall is bi‐layered (~1.5 μm thick), with a smooth outer layer constituting approximately two thirds of the total thickness. …”ABSTRACT We describe and characterize a new Isospora species from the black‐faced cuckoo‐shrike (Coracina novaehollandiae) in Western Australia, using both morphological and molecular approaches. Microscopic analysis of a fecal sample revealed 20 ellipsoidal oocysts, which are subspheroidal to ovoid...
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Effects of the Concentration of Inorganic Binders and Optical Absorbers on the Phase Formation and Microstructure of Flash‐Lamp‐Annealed Chemically Bonded Phosphate Ceramic Composi...
Published 2025-07-01“…Three different optical absorbers—graphite, black iron oxide, and liquid black organic ink—are investigated as optical absorbers. …”ABSTRACT A chemically bonded ceramic composite is synthesized using nanosized alumina powder and aluminum dihydrogen phosphate (Al(H2PO4)3, ADP) as a binder with varying solid volumetric ratios from 50% to 75%. Photonic curing of such composites by flash lamp annealing (FLA) is of interest as a new...
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LARGE-SCALE EXPANSION OF HYPOXIA AT MARINE BENTHAL ZONE IN GEOMORPHOLOGICALLY COMPARABLE BAYS-FJORDS OF CRIMEA PENINSULA UNDER DIFFERENT TECHNOGENIC LOADS
Published 2018-10-01“…The concentration and total consumption of dissolved oxygen in the water column and the bottom layer were determined in situ using a digital LDO analyzer. …”Aim. Comparative analysis of the aeration features of the bottom waters during the different seasons of the year between the Sevastopol and Donuzlav Bays as geomorphological similar in configuration semi-closed sea reservoirs of the Black Sea under different anthropogenic loads. Material and methods...
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Microplastics in the geological-ecological subsystem of the coastal part of the geoecosystem of the Georgian Shelf
Published 2025-06-01“…The results of studies on the distribution of microplastics in the surface layer of seafloor sediments in the water area adjacent to the coast of Georgia, conducted by specialists of the State Scientific Institution “MorGeoEcoCenter of the NAS of Ukraine”, are presented. …”The results of studies on the distribution of microplastics in the surface layer of seafloor sediments in the water area adjacent to the coast of Georgia, conducted by specialists of the State Scientific Institution “MorGeoEcoCenter of the NAS of Ukraine”, are presented. These works are part of a la...
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The crustal structure of the transition from the East Black Sea Basin to the Shatsky Ridge from the reinterpretation of deep seismic sounding data on profiles 14-15-16
Published 2020-06-01“…The transition from thin EBSB suboceanic crust to the Shatsky Ridge continental crust occurs rather sharply, over an interval of ~25 km, where changes are observed in all crustal layers — from sediments to the Moho. The transition of the two types of the crust is ascribed by a lineament, parallel to the coastline of the eastern part of the Black Sea, and is associated with a collinear Alushta-Batumi magnetic anomaly of the same (NW) strike. …”The paper represents the results of velocity modeling (ray-tracing modeling) performed for three deep seismic sounding (DSS) profiles 14, 15 and 16 acquired in the eastern part of the Black Sea more than 40 years ago. These profiles represent a system of radial profiles diverging from one common sh...
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Lithospheric structure based on integrated analysis of geological-geophysical data along the DOBREfraction’99/DOBRE-2 profile (the East European Platform —the East Black Sea Basin)...
Published 2018-11-01“…The low-velocity mantle layer between the South Crimean and Mesozoic sutures indicates a present-day manifestation of the total effect of post-Paleozoic subductions. …”The continuous DOBREfraction’99/DOBRE-2 WARR and CDP profile of 775 km length with about 100 km overlap was acquired by an international team from Ukraine, Poland, Denmark, USA, Netherlands, Germany, Great Britain and Norway in 1996 and 2007 respectively. It crosses southeastern East European Crato...
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Influence of agrophysical and agrochemical properties of fused and leached chernozemes on the yield of agricultural crops
Published 2017-12-01Get full textThe article presents the results of an assessment of the state of agrophysical and agrochemical properties of fused and leached chernozems and determination of the most promising crops for cultivation on these soil subtypes. It has been revealed that the leached chernozems are the most optimal soils...
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Land Cover and Trends in Temperature and Dew Point in Illinois
Published 2025-04-01Get full textIllinois is a leading state for agricultural production in the United States, and corn production in the state has rapidly increased since the 1970s. Intensification of agriculture has been shown to have impacts on the atmosphere by altering humidity, and changes in land cover and soil moisture have...
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Isolation and Structure Elucidation of Three Dimeric A-type Proanthocyanidins from <i>Empetrum Nigrum</i> L.
Published 2021-05-01“…Fraction analysis was performed through analytical high-performance liquid chromatography (HPLC) using a Prominence LC-20 (Shimadzu corp., Japan) equipped with a SPD-M20A diode-array detector, as well as by high performance thin layer chromatography (HPTLC) using a CAMAG HPTLC system (Switzerland). …”Introduction. Urinary tract infections are a common group of diseases worldwide, affecting more than 150 million people every year. In about 30 % of patients with initial infection, UTI becomes chronic. Herbal medicines, along with synthetic diuretics and antibiotics, are widely used for the prevent...
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A novel method for soil organic carbon prediction using integrated ‘ground-air-space’ multimodal remote sensing data
Published 2025-08-01Get full textHigh-accuracy maps of soil organic carbon (SOC) content are essential for agricultural management and ecosystem services. However, traditional remote sensing data can hardly balance spatial and spectral resolution, resulting in the inability to simultaneously obtain high-resolution spatial distribut...
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THE CONSUMPTION OF NITROGEN FROM SOIL AND PRODUCTIVITY OF SPRING DURUM WHEAT IN FALLOW LANDS OF THE ORENBURG ZAURALYE
Published 2018-06-01“…It has been determined that when the crop is cultivated in the fallow black earth lands with alkalinity, the nitrogen consumption from different soil layers (up to1 m) during its vegetation can vary from 65.99-80.57% till 87.16-93.14% and from 57.43 and 45.18% in the layers of 0-30cm, 30-60cm and 60-100cm respectively in fallow lands without fertilizing and in fallow lands with fertilizing of P40 kg/ha. …”For the first time we have received the results for the cultivated virgin lands of the Orenburg Zauralye, which characterized the changeability of nitrogen consumption from the root layers of soil at different depth, its effect on productivity of spring durum wheat. It has been determined that when...
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First U–Pb LA-ICP-MS Radioisotopic Ages of the Devonian–Carboniferous Boundary Black Shales (Domanik Facies) in the Kama–Kinel Trough System, Volga–Ural Petroleum Province, East Eu...
Published 2025-07-01“…For the first time, zircons from thin volcanic ash layers contained within organic-rich black shales (Domanik facies) at the Devonian–Carboniferous boundary have been dated using the U–Pb LA-ICP-MS method. …”For the first time, zircons from thin volcanic ash layers contained within organic-rich black shales (Domanik facies) at the Devonian–Carboniferous boundary have been dated using the U–Pb LA-ICP-MS method. The studied material comes from core samples of two boreholes located in the axial and margina...
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Specific Features of Internal Waves Manifestation in the Near Mouth Zone of the Danube by High-ResolutionSatellite Data
Published 2023-12-01Get full textThe mechanisms of manifestation of internal waves in satellite data of the optical range are considered for the mouth area of the Danube. Three main mechanisms for the manifestation of internal waves are identified – the previously described dynamic (due to a change in the roughness of the sea surfa...
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Title not available
Published 2024-08-01“…The systems of interest are (i) mineral carbonation of ferronickel slag, (ii) dissolution of a chalcopyrite concentrate in sulfuric media, and (iii) dissolution of spent Ni-MH battery black mass powder in sulfuric media. In the case of ferronickel slag and chalcopyrite, the reaction yields are improved by a factor of 10 with attrition-leaching compared to leaching only, while there is no yield improvement in the case of Ni-MH black mass batteries, highlighting that the layers observed on the grain surface do not interfere with the leaching reaction. …”The overall performance of hydrometallurgical leaching operations can be limited by the presence of various types of insoluble layers coating the surface of the treated solids. The attrition-leaching process, which is carried out in a stirred reactor containing millimetric beads, can partially overc...
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