Materials Literature
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The use of high‐density carbon monoliths ( CM ) for preparing supercapacitor electrodes is analyzed. The starting CM s, produced by ATMI Co, were treated as follows: (1) under a N 2 flow at 1073 K to modify the carbon surface chemistry and (2) activated with CO 2 at the same temperature, using different activation tim…
This paper proposes the influence factors of coupling effects of shearing flow and vibration on diffusion coefficient and critical nucleation energy during metal solidification. Based on this proposal, a metal solidification–nucleation–rate model under coupling effects of shearing flow and vibration is established. Ve…
We read with interest the paper by Wu et al. ([1][1]) purporting to show that blockade of P-glycoprotein with verapamil or itraconazole increased brain concentrations of amphotericin B (AMB). Because virtually all P-glycoprotein blockers also block other transporters, we chose to compare P-
The effect of hydrophilic bentonite addition on the thermogelation properties of aqueous solutions of poly(N-isopropylacrylamide)–poly(ethylene glycol)–poly(N-isopropylacrylamide) (PNIPAM-PEG-PNIPAM) triblock copolymers of various compositions and molecular weights was investigated. Dynamic rheometry and differential…
Zusammenfassung Eine Vielzahl von Prozessen in der Chemie und Verfahrenstechnik kann durch Ultraschall positiv beeinflusst werden. Oftmals ist ultraschallinduzierte Kavitation der Hauptwirkmechanismus für die positiven Effekte der Beschallung. Daher ist es notwendig die Kavitationsaktivität während des Prozesses zu qu…
Abstract The electrostatic interactions between gas generating agent and organic electron withdrawing additives were studied to understand how the interaction affects the reactions of their thermal behavior. To explore the electronic interaction and its effect, the thermal behavior of a mixture of dinitrobenzene isome…
Bacterial cytokinesis is accomplished by the Z-ring, which is a polymeric structure that includes the tubulin homologue FtsZ at the division site. ZapD, a Z-ring-associated protein, directly binds to FtsZ and stabilizes the polymerization of FtsZ to form a stable Z-ring during cytokinesis. Structural analysis of ZapD…
There was conducted investigation of physical and chemical properties and structural constituents of calcium hydride intermetallide TiNi. There were examined peculiarities of influence of different kinds of consolidation (hot isostatic pressing and hydrostatic pressing with subsequent sintering in vacuum) on chemical…
CO 2 geosequestration or enhanced oil recovery (EOR) by CO 2 injection in hydrocarbon reservoirs is suggested as a short-term solution for limiting CO 2 atmospheric accumulation. In the case of oxy-combustion CO 2 capture, the main annex gas associated with CO 2 is O 2 in important proportion (≤7%). Even if hydrocarbo…
There was investigated the structure of native crystalline and crypto-crystalline graphite from Krasnoyarsk Krai’s deposits with the aid of X -ray analy- sis on diffractometer «Bruker» D8 ADVANCE. There were revealed alterations of types and parameters of crystal lattice by means of mechanical ac- tivation or mechanic…
The HigA2 antitoxin and the HigBA2 toxin-antitoxin complex from Vibrio cholerae were crystallized in complex with their operator box. Screening of 22 different DNA duplexes led to two crystal forms of HigA2 complexes and one crystal form of a HigBA2 complex. Crystals of HigA2 in complex with a 17 bp DNA duplex belong…
Continuous direct foaming techniques for ceramics promise economical and ecological advantages compared to other manufacturing routes. No additional template is needed to generate a foam structure, and no fugitive pore formers have to be burned out. Using only air as the pore former, much lower emissions of waste gase…
Crystal structures of the dipeptide Boc-12-Crown-4-L-DOPA-Gly-OMe (chi) and Boc-12-Crown-4-D/L-DOPA-Gly-OMe (rac) were solved by single crystal X-ray diffraction. Analysis of the packing differences in the crystal reveals that the presence of a water molecule in chi enables intermolecular contacts with the solvent tha…
This paper presents some of the properties of commercially manufactured laminated flooring having magnesium oxide substrate. Laminated flooring samples with thin veneer of walnut wood and linoleum were tested for their bending characteristics, internal bonding strength, thickness swelling, and surface roughness. The h…
The paper describes the design and implementation of an on-line operation monitoring and accident response support system to be used at the emergency response center of Hungarian Atomic Energy Authority (HAEA). The system is called CERTA VITA and it is able to monitor the four VVER-440 units of the Hungarian Paks nucl…
Ceramics of Pb (Zr0.56Ti0.44)O3 with 2.0 at% cadmium and 2.0 at% tungsten dopants (PZT-CW) were created using hot-pressing method. Next, the basic properties of PZT-CW ceramics were investigated. An analysis of the crystallographic structure, tests of dielectric and piezoelectric parameters of the ceramics, as well as…
Abstract Nanocrystalline and amorphous Mg2Ni-type Mg20–x Y x Ni10 (x = 0, 1, 2, 3 and 4) electrode alloys were prepared by mechanical milling. The structures of the as-cast and milled alloys were determined by X-ray diffraction, transmission electron microscopy and scanning electron microscopy. The electrochemical hyd…
A model dimer forming fluid has been investigated by continuous molecular dynamics simulations. This study emphasizes the volume fraction and temperature dependence of the dynamic properties of the system, including the self and collective diffusion coefficients and the forward and reverse rate constants. The self and…
Cross‐termination in bulk reversible addition–fragmentation chain transfer (RAFT) polymerization is characterized by defining a new parameter, RM, in terms of the polymerization rates with and without an externally applied magnetic field (EAMF). For the bulk RAFT polymerization (RAFTP) of styrene (St), mediated by (2‐…
There was investigated influence of mechanical activation in centrifugal planetary mill (during 9–43 min at relation of balls mass and material B : M = 20 : 1) and subsequent high-speed heating (~ 6 °C/s) on phase formation in the system of chromium–carbon. There was elucidated that incu- bation period of carbide form…