Results 1 to 10 of about 574,617 (161)
Selected physical properties of liquid biofuels [PDF]
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
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]
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
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]
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
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
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
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
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]
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

