Actual problems of Mathematics, Physics and Mecanics
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Actual problems of Natural Sciences
COMPARISON ASTER, SRTM AND GOOGLE DEM WITH GROUND DATA IN A SMALL-SCALE AGRICULTURAL LAND
The aim of this study is to compare open-source DEM data with ground data in order to assess the accuracy and identify their possibility of usage for agricultural activities. The accuracy assessment was checked through ground data taken from 2100 m sq. agricultural field that is being used for...
3 October 2020, 14:04
COMPLEX COMPOUNDS OF COPPER (II) FORMIATE WITH ACETAMIDE AND NICOTINAMIDE
The article presents data on the synthesis and study of previously non-described complex compounds of copper formate with acetamide and nicotinamide. It was shown by IR spectroscopy that in the structure of the complexes, the coordination of acetamide occurs through oxygen atom, and nicotinamide,...
3 October 2020, 14:04
SOME RESULTS OF ENGINEERING AND GEOLOGICAL STUDIES ON DESIGNING SITES FOR MUNICIPAL SOLID WASTE LANDFILLS IN THE KHOREZM REGION OF THE REPUBLIC OF UZBEKISTAN
On the basis of the engineering surveys carried out in the territory of Khorezm region, the necessary data was obtained on the engineering and geological conditions of the sites for the design of two municipal solid waste landfills and the protection of the environment against natural and man-made...
3 October 2020, 14:04
SENOPOPULATIONS OF SCUTELLARIA COMOSA JUZ (LAMIACEAE) IN THE FERGANA REGION
Ontomorphogenesis and the ontogenetic structure of cenopopulations of Scutellaria comosa have been studied under natural conditions. A brief ecological and phytocenotic characteristic of its habitats is given. Ontogenesis of Scutellaria comosa is simple, incomplete, senile individuals are absent....
3 October 2020, 14:04
SYNTHESIS AND ANALYSIS OF COORDINATION COMPOUNDS OF NICKEL (II) ACETATE WITH MONOETHANOLAMINE AND P-NITROBENZOIC ACID
This article clarifies the synthesis of a complex combination of pnitrobenzoic acid with Ni2+ from aromatic carbonic acid derivatives. Moreover, factors influencing the synthesis of the complex compound under room conditions were identified. In particular, the time dependence of the reaction, the...
3 October 2020, 14:04
AN OBTAINMENT OF SINGLE-ATOMIC UNCERTAIN ALCOHOLS ON THE BASE OF ACETHYLENE AND PHENYL ACETHYLENE AND THEIR BROMINATION
Acetylene alcohols and phenyl acetylene allow synthesizing the necessary substances for the chemical industry - synthetic polymers, pharmacological preparations, agricultural pesticides, defoliants, plant stimulants. We investigated the synthesis of tertiary alcohols on the base of acetylene and...
3 August 2020, 13:05
ADSORPTION ETHANOL IN H3,25ZSM-5 ZEOLITE
Differential heats and isotherms of ethanol adsorption in a zeolite H3,25ZSM-5 have been measured by Tian-Calvet-type microcalorimeter and volumetric system at 303 K. Based on the data obtained, the mechanism of ethanol adsorption and (C2H5O)n/Н+ complexes formation in the zeolitic matrix of...
3 August 2020, 13:05
BIOGEOGRAPHY SCUTELLARIA ADENOSTEGIA BRIQ. (LAMIACEAE)
The article provides a brief overview of large-scale studies of species of the genus Scutellaria L., discussion about the need for targeted studies of species of the genus found in the Ferghana Valley, including the distribution of the species Scutellaria adenostegiya Briq in the botanical and...
3 August 2020, 13:05
INFLUENCE OF THE FERTILIZER STANDARDS, TIMING OF PLANTING, THICKNESS OF SEEDLINGS ON THE YIELD OF A PUMPKIN SORT “ISPANSKAYA-73” IN THE CONDITIONS OF KHOREZM REGION
The influence of fertilizer standards on the yield of the pumpkin sort “Ispanskaya-73” was studied. The study was conducted under the conditions that fertilizer standards were N-150; P-100; K-90 kg, N-200; P-140; the thickness of seedlings was 220x100x1, 220x80x1, 220x70x1, and the timing of...
3 August 2020, 13:05
INFLUENCE OF AMMONIUM SULPHATE IN THE GRANULOMETRIC COMPOSITION OF AZOSUPERPHOSPHATE
This information sets out the results for improving the granulometric composition of azosuperphosphate. Investigated on the marketability finished product and the influence of the norm and method of conducting ammonium sulfate. The granules of activated nitrogen-phosphorus fertilizers have...
3 August 2020, 13:05