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Приказ резултата 261-270 од 285
Complete thermodynamic characterization of the soil organic matter from forest ecosystems.
(European Geosciences Union, 2023)
Thermodynamic characterization of soils is a developing field that involves the calculation of the enthalpies, Gibbs energy, and entropy of the soil organic matter, SOM. Its achievement would contribute to the development ...
Laying the ghost of twin paradox
(Society of Thermal Engineers of Serbia, 2009)
Someone's true age is not written in his ID, but in his biomarkers. Aging process is not caused by time passing, but by thermodynamically laws. Entropy, extent of metabolic reaction, and temperature are Lorentz invariant, ...
Alunit i natroalunit sa Velikog Bukovika / Alunite and natroalunite from Veliki Bukovik
(Belgrade : Serbian Crystallographic Society, 2001)
With the X-ray qualitative, semiquantitative powder diffraction analysis it was determined that in investigated sample from Veliki Bukovik there are following mineral species acording to their quantity: alunite (approx. ...
Explaining the entropy concept and entropy components
(Serbian Society of Subject Didacticians (SSoSD), 2017)
Total entropy of a thermodynamic system consists of two components: thermal entropy due to energy, and residual entropy due to molecular orientation. In this article, a three-step method for explaining entropy is suggested. ...
Odnos između kristalografskih parametara i sadržaja FeS i CuS kod sfalerita iz Kiževaka / Relation between the crystallographical parameters and the FeS and CuS contents at sphalerites from Kiževak
(Belgrade : Serbian Crystallographic Society, 2004)
At sphalerites from Kizevak there were determined crystallographic parameters, and the FeS and CuS contents in order to establish what is their mutually relation.
Synthesis of calcium doped phosphate tungsten bronze
(Society of Physical Chemists of Serbia, 2018)
A study is presented of phase transitions of acid CaHPW12O40∙6H2O salt of 12-tungstophosphoric acid and characterized in the temperature range from room temperature to 1093 K. The structure and its phase transformations ...
Particle size distribution of iron ore sludge determined by using different methods and iron content by size class
(University of Banja Luka Faculty of Mining PrijedorMining Institute Belgrade Ltd, 2017)
This paper presents the results of the study of the particle size distribution of the limonite sludge that occurs as a hydro-cyclone overflow in the Omarska iron mine. The primary role of the precise
characterization of ...
Preliminary data on the crystal-chemical characteristics of beryl from Cer Mt. (Serbia)
(Scientific Annals, School of Geology, Aristotle University of Thessaloniki, 2010)
A beryl crystal from Cer Mt. (Serbia) studied in this paper was characterized by means of
XRPD and wet-chemical analyses. It has following unit cell dimensions: a = 9.2166(8) Å, c = 9.192(1) Å, V = 676.2(1) Å3 and ratio ...
Rezultati preliminarnih ispitivanja granata sa Stare Planine / Results of the preliminary investigations of garnet from Stara Planina Mt.
(Belgrade : Serbian Crystallographic Society, 2004)
Garnet from the garnet - amphibole association at Stara Planina Mt. was investigated by the X-ray powder diffraction method.
There are two twin shadows, but Einstein is one!
(Society of Thermal Engineers of Serbia, 2012)
2011 is the international year of chemistry, and it is exactly 100 years past after the P. Langevin promotion of “twin paradox” problem. The hundred year old problem still demands its solution. Twin paradox, established ...