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Prikaz rezultata 2521-2530 od 2533
Composition-property relationship of polyurethane networks based on polycaprolactone diol
(Springer, 2020)
This work was focused on the synthesis of polyurethane networks (PUNs) based on
polycaprolactone (PCL) as soft segment (SS) and Boltorn® aliphatic hyperbranched
polyester of the second pseudo generation and 4,4′-diphenylmethane ...
Al,Fe,Ni-pillared bentonite in the catalytic wet peroxide oxidation of the textile dye Acid Yellow 99
(Springer Netherlands, 2018)
The main goal of this work was to prove that nickel containing Al,Fe pillared bentonites have enhanced catalytic properties. The chosen test system was the catalytic wet peroxide oxidation (CWPO) the Acid Yellow 99 dye ...
A new type of slow-wave PBG microstrip structures
(Journal of Microwaves and Optoelectronics, 2004)
A new type of 1D slow-wave PBG microstrip structures is introduced. They have no etching in the ground plane and have a simple modification of the microstrip line. The basic cell is applied to three different structures. ...
Cyclic-voltammetry behavior of Pt(1 1 1) in aqueous HClO4+C6H6 Influence of C6H6 concentration, scan rate and temperature
(Elsevier, 2010)
Pt(1 1 1) is modified with an overlayer of C6H6 ads by immersion in 005 or 050 M HClO4 + 1 mM C6H6 and cycling in the 0 05-0 80 V vs RHE potential range The influence of the C6H6 concentration (1-20 mM) scan rate (10-100 ...
Structural and thermal properties of Sn–Ag alloys
(Elsevier, 2021)
Microstructure and thermal properties of slowly cooled Sn–10% Ag and Sn–20% Ag alloys were experimentally investigated in this study. It was found that microstructure of the studied alloys is composed of large, plate-like ...
The origin of high activity of Pt-Au surfaces in the formic acid oxidation
(Oxford : Pergamon-Elsevier Science Ltd, 2009)
We have investigated the oxidation of HCOOH on Au-modified Pt (Au"Pt) and Pt-modified Au (Pt"Au) electrodes to establish the role of the ensemble and the electronic effect in the catalysis of this reaction. The surfaces ...
Pulse and direct current plating of Ni-W alloys from ammonia-citrate electrolyte
(Elsevier, 2006)
The effect of the potential of deposition and electrode rotation rate on current efficiency and partial current density of nickel deposition from ammonia-citrate electrolyte with and without tungstate ions was investigated. ...
Biogenic amines content in the serum of patients with non-Hodgkin’s lymphoma
(Editura Academiei Romane, 2019)
The biosynthetic pathway of biogenic amines is very active during the growth of many tumour cells. Non-Hodgkin lymphoma represents a very heterogeneous group of malignancies. The concentration level of some biogenic amines ...
The solvent effect on the conformational equilibrium of 1,3-dichloro-5-methylcylclohexane
(Elsevier, 1985)
The conformational equilibrium has been measured for r-1,c-3-dichloro-t-5-methylcyclohexane(2) in six solvents from the 500 MHz and 400 MHz 1H NMR spectra. The room-temperature and low-temperature C1H couplings are used ...
On the choice of optimal conformation in linear free-energy relationships. Reactivity of 2-[(carboxymethyl)sulfanyl]-4-oxo-4-arylbutanoic acids with diphenyldiazomethane
(Amsterdam : Elsevier, 2012)
Rate constants for the esterification of eleven 2-[(carboxymethyl)sulfanyl]-4-oxo-4-arylbutanoic acids
with diphenyldiazomethane in ethanol at 30 C were determined, and correlated with substituent constants
using classical ...