… An aqueous solution of nickel acetate containing 0, 1.3, 1.6, or 2.2 wt.% nickel was slowly
added to 4 g of lignin up to the moment the solution volume can be entirely absorbed by the …

… Specifically, we show that directed networks are applied more efficiently to asset allocation,
as showed by Konstantinov and Rusev (2020). For factor allocation, correlation networks …

… The mixed oxide obtained by acidic etching solution of mineral vermiculite after heat
treatment at 500 and 900 C is characterized by specific surface - 120 m 2 /g and 12–15 m 2 /g, …

This paper presents the results of tar conversion under microwave irradiation (MWI). It is
established that carbon adsorbents produced from natural mineral row possess by high …

A new two-step dehydration-dehydrogenation catalytic process for the production of 1,3-butadiene
from bio-1-butanol has been developed. The process was based on elaborated γ-Al 2 …

The technology of producing ceramic lead zirconate titanate/α-Al 2 O 3 composites has been
developed. Elements of piezoactive composites containing from 0 to 60 vol % α-Al 2 O 3 …

Unmodified lead ferroniobate (PFN) and samples modified with 1 wt % Li 2 CO 3 (PFNL) and
1 wt % MnO 2 (PFNM) have been prepared by solid-state reactions followed by sintering by …

OBJECTIVES Phrenic nerve injury after paediatric heart surgery is associated with significant
morbidity. Surgical plication of the diaphragm is believed to be beneficial to the patient, …

… The magnetic field at the inner wall of the expander is 2 kG and decreases to 100 G upon
displacing 2 cm inward. Reflection of the plasma jet from the 'magnetic wall' is responsible for a …

Ceramic-matrix composites of different types have been comprehensively studied using
three-dimensional numerical simulation, resonance analysis of impedance spectra, and pulse-…