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Приказ резултата 91-100 од 111
Electrochemical lithiation/delithiation kinetics and capacity of phosphate tungsten bronze and its chemically pre-lithiated derivatives in aqueous solutions
(Springer, 2016)
Monophosphate bronze (PW8O26, WPB) was synthesized by low-temperature (650 °C) heating of 12-tungstophosphoric acid (WPA). Its lithiated derivative with a low lithium content (Li3-WPB) was synthesized by heating lithium ...
Crystal structure and chemical composition of ludwigite from Vranovac ore deposit (Boranja Mountain, Serbia)
(John Wiley & Sons, Inc., 2012)
The crystal structure of ludwigite from Vranovac ore deposit (Boranja Mt., Serbia) was refined using the X-ray powder diffraction (XRPD) Rietveld method in the space group Pbam to a final RB=7.45% and RF=5.26%. It has the ...
Одређивање састава чврстих раствора ромбичних карбоната помоћу кристалографских параметара, део IV : Математички прорачуни за CaCO3-SrCO3-PbCO3 систем : (са 14 табела) / Determination of the composition of the otrhorhombic carbonate solid solutionswith crystallographic parameters, part IV : Mathematical calculations for the CaCO3-SrCO3-PbCO3 system : (with 14 Tables)
(Геозавод, 2005)
There were calculated contents of the phases with smaller ionic radius in the CaCO3-SrCO3, CaCO3-PbCO3 and SrCO3-PbCO3 systems for the three-component CaCO3-SrCO3-PbCO3 system.
Results of these mathematical calculations ...
X-ray investigations of arsenopyrites from some ore deposits of Serbia
(Geoinstitut, 2003)
With the X-ray investigations there were examined arsenopyrites from five ore deposits of Serbia: Crveni Breg (Avala), Rudnik (Rudnik), and Sastavci, Belo Brdo and Trepča (Kopaonik). Investigations involved qualitative ...
Сидеритични прослојци у понту околине Неготина
(Geoinstitut, 1993)
Prilikom izdvajanja formacija u neogenu Srbije, duž Save i Dunava (Krstić i dr., 1992) postavilo se pitanje proslojaka sa karbonatom. U vezi sa tim konsultovani su A. Antonović, D.B. Milovanović i druge kolege. Prihvaćena ...
Одређивање састава чврстих раствора ромбичних карбоната помоћу кристалографских параметара, део V : трокомпонентни дијаграми за CaCO3-SrCO3-PbCO3 систем : (са 13 Слика) / Determination of the composition of the otrhorhombic carbonate solid solutionswith crystallographic parameters, part V : three-component diagrams for the CaCO3-SrCO3-PbCO3 system : (with 13 Figures)
(Геозавод, 2005)
There were represented three-component diagrams for the CaCO3-SrCO3-PbCO3 system of the orthorhombic carbonates.
These diagrams represented variation of the crystallographical parameters a0, b0, c0, V0, d130, d220, d221, ...
Occurence of alunite and natroalunite at Veliki Bukovik (Raška, Serbia)
(Минно-геоложки университет “Св. Иван Рилски”, 2004)
Alunite and natroalunite from Veliki Bukovik near Raska (Serbia) were determined. There were obtained following unit cell dimensions and crystallochemical formulas:
alunite: a0=6.976(1)Å; c0=17.295(6)Å; V0=729.0(3)Å3; ...
Structural dissymmetrization of optically anisotropic Grs64±1Adr36±1Sps2 grandite from Meka Presedla (Kopaonik Mt., Serbia)
(Cambridge University Press, 2020)
In this paper, grandite core with Grs64±1Adr36±1Sps2 composition was crystallographically studied. This core represents zone A of the macroscopically visible five A–E zones of the optically anisotropic Grs58–64Adr36–42Sps2 ...
Comparative study of entropy and information change in closed and open thermodynamic systems
(Elsevier, 2014)
In this paper we discuss the entropy and information aspects of closed and open systems. The information and entropy change of the system are discussed in the context of RNA synthesis.
Thermodynamics of hydrolysis of cellulose to glucose from 0 to 100 °C: Cellulosic biofuel applications and climate change implications
(Elsevier, 2018)
Hydrolysis of cellulose to glucose is a key reaction in renewable energy from biomass and in mineralization of soil organic matter to CO2. Conditional thermodynamic parameters, ΔhydG’, ΔhydH’, and ΔhydS’, and equilibrium ...