Materials Literature
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The paper reports the results of optical studies of the absorption, luminescence excitation, and infrared transmittance spectra for the set of ZnS(O)-ZnSe(O) alloys with highly inconsistent properties of anions. It is shown that the band anticrossing theory applied to the alloys provides a general interpretation of th…
In this article, we present a method of patterning a GaN substrate using polystyrene spheres and its inversed structure as the mask. By dry etching, different surface morphologies and depths of the GaN substrate can be obtained by changing the etching time. We used such a sphere-patterned GaN substrate to fabricate Ga…
Within the scope of a cooperation between Svensk Kärnbränslehantering AB and Forschungszentrum Karlsruhe, Institut für Nukleare Entsorgung, a series of actinide migration experiments were performed both in the laboratory and at the Äspö Hard Rock Laboratory in Sweden. The objectives of these experiments were to quanti…
Silver nanoparticles are excellent biocompatible surfaces for the immobilization of enzymes. However, separation of the silver nanoparticle-enzyme bioconjugate material from the reaction medium is often difficult. In this study, we investigate the assembly of the silver nanoparticles on the surface of the amine-functi…
Abstract Mono‐Schiff base cobalt(II) and manganese(III) complexes with either benzo‐10‐aza‐crown ether pendants (CoL21, MnL21Cl) or morpholino pendants (CoL22, MnL22Cl) have been employed as models for hydrolase enzymes by studying the kinetics of their hydrolysis reactions with p‐nitrophenyl picolinate (PNPP). The ki…
Recording of optical holographic gratings based on photostructural transformations in thin (≈ 1 μm) As 2 S 3 and As 2 S 3 semiconductor layers in the presence and absence of a corona discharge and also chemical etching of these gratings are studied. Initiation of a corona at the stage of interference grating recording…
Corrosion properties of Mn steel, Cr–Mo steel and 316L stainless steel and effects of surface treatments including Cr or Ni coating, nitriding and oxynitriding on the corrosion resistance of steels were examined in halogen acid gas and solutions. Corrosion behaviours were evaluated by the potentiodynamic polarisation…
The second pre-combustion decarbonisation technology Sorption Enhanced Water-Gas Shift (SEWGS) combines the WGS reaction with simultaneous CO2 capture by using a mixture of WGS catalyst and CO2 sorbent. Accordingly, the WGS catalyst is exposed to all conditions encountered in the cyclic SEWGS process, such as exposure…
The FDM numerical simulation software, ViewCast system, was employed to simulate the low pressure die casting (LPDC) of an aluminum wheel. By analyzing the mold-fi lling and solidifi cation stage of the LPDC process, the distribution of liquid fraction, temperature field and solidification pattern of castings were stu…
The repair of gas turbine components is of importance both commercially and scientifically to ensure cost effective repair schemes that will extend the lives of hot end components such as blades and stators. The present communication reports the results of a metallographic and orientation imaging microscopy study of w…
Insulation degradation leading to leakage current flow through high voltage insulators could result in catastrophic failures such as pole fires and damages to nearby equipment. This paper examines the leakage current distribution originating from the high voltage conductor to various locations through the wooden pole…
Abstract Phyllosilicate mineralogy is key to understanding hydrothermal processes within accepted epithermal deposit models but little information has been published about the mineral chemistry of epithermal deposits. X-ray diffraction, optical and electronic microscopy (scanning and transmitted), electron microprobe,…
Electromagnetic bandgap (EBG) structures active in the 90–110 GHz region widely used by security imaging radar were created using different ceramics by a rapid prototyping method informed by finite difference time domain modeling. This solid free‐forming method uses a high volatility solvent‐based ceramic paste extrud…
The FePt:C films with different volume fractions of carbon were epitaxially grown on the CrRu(200) underlayer with Pt and MgO intermediate layers. The magnetic properties and microstructure of these FePt:C films were investigated. The FePt:C films grown on Pt intermediate layer consisted of a continuous layer of FePt,…
N-Alkylsalicylideneimines and their complexes with 3d metals were obtained by chemical (from metal salts) and electrochemical methods (from metals in the zero oxidation state). The compounds obtained were characterized by IR and 1H NMR spectroscopy and X-ray diffraction analysis. According to crystallographic data, ni…
Abstract Lectotypes (61), neotypes (4) and epitypes (6) are designated here by 15 specialists for Linnaean algal names. These newly designated types support the current usage of the names concerned. All Linnaean names that have been linked with algal taxa are listed, and earlier but ineffective or supersedable type se…
Sol-gel derived nanostructured tin oxide (Nano-SnO2) film (annealed at 500 °C for about 2 h) has been dip-coated onto indium-tin-oxide (ITO) coated glass for immobilization of glucose oxidase (GOx). This Nano-SnO2/ITO film has been characterized using X-Ray diffraction (XRD), scanning electron microscopy (SEM), UV-Vis…
Screening or shielding is a process of preventing EM radiation from coupling into or leaking out of defined areas or regions. Basically, this is achieved by using shielding materials such as metals or metallized plastics. Shielding effectiveness (SE) is a parameter that determines the degree of isolation of a ldquovic…
Abstract One μ‐alkoxo‐μ‐carboxylato bridged dinuclear copper(II) complex, [Cu2(L1)(μ‐C6H5CO2)] (1)(H3L1 = 1,3‐bis(salicylideneamino)‐2‐propanol)), and two μ‐alkoxo‐μ‐dicarboxylato doubly‐bridged tetranuclear copper(II) complexes, [Cu4(L1)2(μ‐C8H10O4)(DMF)2]·H2O (2) and [Cu4(L2)2(μ‐C5H6O4]·2H2O·2CH3CN (3) (H3L2 = 1,3‐b…
The uranyl peroxide, studtite (UO 4 ⋅4H 2 O, C2/c, Z = 4), is expected to form as a consequence of alpha radiolysis of water in contact with spent nuclear fuel (SNF) in a geologic repository. Investigation of its stability is, therefore, of critical importance because secondary U(VI) phases may incorporate trace amoun…