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001-es BibID:	BIBFORM067462
035-os BibID:	(Scopus)85012288949 (WoS)000394387600007
Első szerző:	Kaszubkiewicz, Jarosław
Cím:	Determination of soil grain size composition by measuring apparent weight of float submerged in suspension / Jarosław Kaszubkiewicz, Witold Wilczewski, Tibor József Novák, Przemysław Woźniczka, Krzysztof Falińskii, Jerzy Belowski, Dorota Kawałko
Dátum:	2017
ISSN:	2300-8725
Megjegyzések:	A b s t r a c t.Texture is one of the most significant physi-cal properties of soils. Over the years, several methods of its measuring were developed. The paper presents a method for determining the particle size composition of soils, based on the separation of particles in the sedimentation process. Densityof suspension is determined on the basis of apparent weight changes of a float submerged in it. The weight of the float suspended ona thin line, at a given depth in the suspension, is measured witha sensitive piezoelectric dynamometer. The Stokes equation is used to calculate the content of soil fractions with equivalent diameters in the range of 0.001 to 0.1 mm. Digital transmission of results from the dynamometer, the temperature sensor and measurements of the distance defining the depth of immersion of the float to the computer enable calculations of particle size composition to be performed automatically. This paper presents the results of mea-surements of the particle size composition of artificially generated mixtures of ♭silt' and ♭clay'. The results are compared with results obtained with other methods (including the laser method). A high level of repeatability of the results and satisfactory compatibility in relation to the reference pipette method are noted.
Tárgyszavak:	Természettudományok Földtudományok idegen nyelvű folyóiratközlemény külföldi lapban sedimentation particle size composition soil suspension density szemcseösszetétel üledékvizsgálat
Megjelenés:	International Agrophysics. - 31 : 1 (2017), p. 61-72. -
További szerzők:	Wilczewski, Witold Novák Tibor (1973-) (geográfus) Woźniczka, Przemysław Falińskii, Krzysztof Belowski, Jerzy Kawałko, Dorota
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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