Results 21 to 30 of about 142,996 (390)

The Novel Three-Layer Electrode Based on Poly(Neutral Red) for Potentiometric Determination of Citrates

open access: yesChemosensors, 2023
The three-layer electrode consisting of the inner, middle, and outer layers of polythiophene (PTh), polyaniline (PANI), and poly(neutral red) (PNR), respectively, was developed, characterized, and tested as a potentiometric sensor for citrates.
Gabriela Broncová   +2 more
doaj   +1 more source

Plastisol Foaming Process. Decomposition of the Foaming Agent, Polymer Behavior in the Corresponding Temperature Range and Resulting Foam Properties [PDF]

open access: yes, 1998
The decomposition of azodicarbonamide, used as foaming agent in PVC - plasticizer (1/1) plastisols was studied by DSC. Nineteen different plasticizers, all belonging to the ester family, two being polymeric (polyadipates), were compared.
Abbiendi, G   +424 more
core   +3 more sources

Plastisol Gelation and Fusion Rheological Aspects [PDF]

open access: yes, 2013
This study deals with the rheological aspects of poly-vinyl chloride (PVC) plastisol gelation and fusion processes in foamable formulations. Here, such processes are simulated by temperature-programmed experiment (5 K min−1) in which complex viscosity ...
MARCILLA, Antonio   +2 more
core   +4 more sources

Characteristics of the citrate-based zinc-polyaniline secondary cell with supercapattery behavior [PDF]

open access: yesJournal of the Serbian Chemical Society, 2019
The electrochemical characteristics of zinc–polyaniline (PANI) secondary cell in the electrolyte containing 0.8 M Na citrate, 0.3 M NH4Cl and 0.3 M ZnCl2 is investigated.
Grgur Branimir N.   +3 more
doaj   +1 more source

Internal friction investigation of phase transformation in nearly stoichiometric LaMnO3+δ [PDF]

open access: yes, 2005
Rhombohedral LaMnO3+δ powders, prepared by two different soft chemistry routes (co-precipitation and hydrothermal synthesis), are sintered at 1400 °C for 2 h in air. Measurements of internal friction Q−1(T) and shear modulus G(T), at low frequencies from
Bernard, Caroline   +5 more
core   +2 more sources

DISSOLVING KIDNEY STONES: FOR WHOM? WHEN? HOW?

open access: yesМедицинский совет, 2016
Urolithiasis (UL) currently remains a relevant healthcare and social problem. According to epidemiological studies, urolithiasis is more common in men than in women. Recently, there has been a trend towards a steady increase in morbidity [1, 2].
V. V. DUTOV
doaj   +1 more source

Du choix du précurseur pour la synthèse de poudres d’oxydes La1-xSrxMnO3 [PDF]

open access: yes, 2005
Différentes poudres précurseurs (carbonates, oxalates, citrates) de manganites de lanthane dopés au strontium ont été préparées par chimie douce. Après calcination, ces précurseurs conduisent aux oxydes mixtes à structure perovskite LaxSr1–xMnO3, dont la
Balboul   +32 more
core   +1 more source

Alkaline citrate reduces stone recurrence and regrowth after shockwave lithotripsy and percutaneous nephrolithotomy

open access: yesInternational Brazilian Journal of Urology, 2011
OBJECTIVE: To evaluate the preventive effects of alkaline citrate on stone recurrence as well as stone growth post-ESWL or PCNL in patients with calcium-containing stones.
B Lojanapiwat   +7 more
doaj   +1 more source

Physiological relationship between content of certain microelements in the tissues of different anatomic sections of the organism of honey bees exposed to citrates of argentum and cuprum

open access: yesRegulatory Mechanisms in Biosystems, 2019
The study was conducted on honey bees of the Carpathian breed on the basis of the apiary of S. Z. Gzhytskyi Lviv National University of Veterinary Medicine and Biotechnologies. The bees were kept in 8-frame beehives with size of the frame of 435 × 300 mm.
I. Kovalchuk   +3 more
semanticscholar   +1 more source

Effect of Long-Term Potato Starch Retention with Citric Acid on Its Properties

open access: yesMolecules, 2022
The present study aimed to determine changes in the properties of starch triggered by its long-lasting (1, 2, 4, 7, 10, or 14 days) retention with citric acid (5 g/100 g) at a temperature of 40 °C. The starch citrates obtained under laboratory conditions
Małgorzata Kapelko-Żeberska   +7 more
doaj   +1 more source

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