Results 1 to 10 of about 574,617 (161)

Selected physical properties of liquid biofuels [PDF]

open access: yesResearch in Agricultural Engineering, 2013
The goal of this study was the determination of basic physical properties such as density, calorific value and rheological properties of liquid biofuels. Biofuels on the base of bioethanol and rapeseed methyl ester were chosen.
P. Trávníček   +5 more
doaj   +2 more sources

Thermo-Physical Properties of Selected Inconel

open access: yesArchives of Metallurgy and Materials, 2014
The paper brings results of examinations of main thermo-physical properties of selected Inconel alloys, i.e. their heat diffusivity, thermal conductivity and heat capacity, measured in wide temperature range of 20 – 900 oC.
Krajewski P.K.   +5 more
doaj   +2 more sources

Physical and chemical properties of the soils in selected communal properties associations of South Africa [PDF]

open access: yesPeerJ, 2022
Communal Property Associations (CPAs) rangeland users need more knowledge on the state of their respective grazing lands and also the interaction of soil properties with grazing management implemented.
Malizo Ntalo   +4 more
doaj   +5 more sources

Selected Physical Properties of Peanuts

open access: yesInternational Journal of Food Properties, 2006
Selected physical properties of peanuts, which are effective in case of mobility or immobility were examined. For this aim, firstly, the geometrical shape of peanuts was defined and the specific mass and friction coefficient, which are quantitative measures of the inertia and frictional resistance that determine the ability of movement, were obtained ...
Akcali I.D., Ince A., Guzel E.
exaly   +3 more sources

Selected physical properties of solid biofuels [PDF]

open access: yesJournal on Processing and Energy in Agriculture, 2012
Rising fossil fuel prices and effort to limit production of gaseous emissions stimulate the increase in exploitation of renewable energy sources. In particular, solid biofuels are becoming widely used as a source of thermal energy.
Vitázek Ivan, Vitázková Božena
doaj   +1 more source

Evaluation of selected physical properties of soil in the vineyard

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2011
There is registered approximately 18 000 ha of intensive vineyards in this time in Czech Republic. The intensive viticulture production is represented by high amount of working operations which are practised by using of mechanization.
Pavel Zemánek, Milan Michálek
doaj   +2 more sources

Determination of selected physical properties of Brachystegia eurycoma seeds

open access: yesResearch in Agricultural Engineering, 2009
The research looked at some selected physical properties of Brachystegia eurycoma, such as axial dimension, roundness, sphericity, surface area, bulk density, solid density, porosity, and volume which are essential in the design and construction of the ...
M.C. Ndukwu
doaj   +3 more sources

On the Ytterbium Valence and the Physical Properties in Selected Intermetallic Phases

open access: yesACS Organic & Inorganic Au
The present review summarizes important aspects of the crystal chemistry of ytterbium-based intermetallic compounds along with a selection of their outstanding physical properties. These originate in many cases from the ytterbium valence. Different valence states are possible here, divalent (4f14), intermediate-valent, or trivalent (4f13) ytterbium ...
Stefan Engel   +4 more
doaj   +3 more sources

Fresh Broccoli in Fortified Snack Pellets: Extrusion-Cooking Aspects and Physical Characteristics

open access: yesApplied Sciences, 2023
The aim of the study was to obtain a new type of potato-based snack pellets fortified with fresh broccoli addition and to estimate their extrusion-cooking parameters (processing stability) and selected physical properties.
Marcin Mitrus   +8 more
doaj   +1 more source

Designing the composition of road concrete with chemical additives [PDF]

open access: yesE3S Web of Conferences, 2021
The article selected local building materials that are suitable for use for road concrete structures. Based on these materials, the composition of road concrete was selected, and its physical and mechanical properties were determined.
Amirov Tursoat   +4 more
doaj   +1 more source

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