Materials Literature
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A four-channel multilayer Kirkpatrick-Baez (KB) microscope is developed for the 8-keV X-ray imaging of experiments on laser inertial confinement fusion (ICF). A periodic multilayer that works at 8 keV and with a grazing incidence angle of 1.0 is coated on reflective surfaces to achieve a spatial resolution higher than…
This research project presents the investigation results of laser remelting and alloying especially the laser parameters and its influence on the structure and properties of the surface of the 32CrMoV12-28 and X38CrMoV5-3 hot work steels, using the high power diode laser (HPDL). As a result of the performed research s…
We investigated the self-cleaning efficiencies of titanium dioxide (TiO2) surface under ultraviolet (UV) irradiation in combination with a water flow (UV/water) condition using oleic acid as the model surface contaminant. UV light intensities were varied from a typical indoor intensity level to a representative outdoo…
Microreactors have attracted wide attention in the nano- and biotechnology fields because they offer many advantages over standard liquid phase reactions. We report the development of a magnetic microreactor for reliable, fast and efficient surface functionalization of superparamagnetic iron oxide nanoparticles (SPION…
We present a one-pot process to produce an extremely dense packed YSZ nanostructure that can consolidate at unconventionally low temperature.
Magnetic tunnel junctions with perpendicularly magnetized elements are being considered for next-generation, non-volatile, magnetic random access memory (MRAM) elements due to their large thermal stability, low Gilbert damping constant α, and very low critical current density Jc required for spin-transfer-torque (STT)…
The iongel catalyst showed higher catalytic activity and stability than the supported catalyst for the water–gas shift reaction.
We present a nanoporous dual-electrode device for highly sensitive electrochemical detection via redox cycling. The individual sensors comprise one billion nanopores in an area of 9 mm(2). Pores feature an approximate lateral distance of 100 nm and pore radii down below 20 nm. The sensor's fabrication process is based…
Water distribution networks (WDNs) are critical infrastructures that are exposed to deliberate or accidental contaminations. The project SMaRT-OnlineWDN aims to develop an online security management and reliability toolkit for water distribution networks. One task focuses on the contaminant transport modeling. This pa…
Calix[4]arenes often form dimeric capsules or up-down bilayer arrangements in the solid state. The head-to-tail polymeric columnar structure found in the cocrystals composed of 5,17-difunctionalized calix[4]arene 1 and organic guests represents another structural motif for calix[4]arenes.
A Zn (II) based metal-organic framework with ligands 1, 4- benzenedicarboxylic acid (H2bdc) and 1-methyle imidazole (1-MI) has been synthesized by simple and economic, room temperature stirring method without heating. Crystals obtained were characterized by powder X-ray diffraction, FT-IR spectroscopy, CHNS, scanning…
Nanosized Co powders were prepared by a chemical reduction method with and without CTAB (cetyltrimethylammonium bromide, C19H42BrN) and carbon‐coating heat treatment at 700°C for 1 h, and the electrochemical properties of the prepared nanosized Co powders were examined to evaluate their suitability as an anode materia…
The water absorption capacity of superabsorbent polymers (SAPs) is important for agricultural drought resistance. However, herbicides may leach into the soil and affect water absorption by damaging the SAP three‐dimensional membrane structures. We used 100‐mesh sieves, electron microscopy, and fractal theory to study…
Results of evaluation of the cycle parameters of a low-power recuperative closed gas-turbine plant powered by organic fuel are reported. Analysis of the effect of the molar mass of the working medium on the plant’s basic characteristics and its features is carried out.
Generally, human thermal comfort depends on combinations of clothing structure and chemical nature of fibers, external conditions and factors related to wearer. Thermal comfort of a clothing system is associated with thermal balance of body and its thermoregulatory responses to the dynamic interactions with the clothi…
Inorganic semiconductor ZnO/ZnS nanostructures were coupled to flexible natural fibrous materials for potential applications that include wearable electronics, protective textiles, portable and flexible photovoltaic and solar cell devices.
Illustration of electro-codeposition of azure A and neutral red hybrid films using high ly conductive and steric MWCNTs as a template.
Following previous studies on α and β polarizabilities of ketocyanines, a subgroup of D-π-A-π-D quadrupolar chromophores with moderately V-shaped structure, the present work analyses the effects of modifying the π-bridges connecting the D (NMe2) and A (CO) groups. This aim is pursued through a detailed comparison betw…
Reconfigurable bistate metasurfaces composed of interwoven spiral arrays with embeddedpindiodes are proposed for single and dual polarisation operation. The switching capability is enabled bypindiodes that change the array response between transmission and reflection modes at the specified frequencies. The spiral cond…
La-Mg alloys of different compositions were prepared by electrolysis of LaCl3-MgCl2-KCl melts. Different phases of La-Mg alloys were characterized by X-ray diffraction (XRD) and Scanning Electron Microscopy (SEM). Energy dispersive spectrometry (EDS) and Inductively Coupled Plasma-Atomic Emission Spectroscopy (ICP-AES…