Materials Literature
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Purpose: The statistical models (SM) are typically used as a subjective description of a population for which there is only limited sample data, and especially in cases where the relationship between variables is known. The normal tissue complications and tumor control are frequently stochastic effects in the Radiothe…
Twenty two new complexes of some tervalent metals (aluminum, chromium, iron, and lanthanides) with nitrozohydroxylamine N-alkyl(benzyl) derivatives ML 3 m · nH2O, (m = 1‒5) were synthesized and isolated in a crystalline state. The crystal and molecular structures of the iron(III) complex with N-(2-fluorobenzyl)-N-nitr…
The spectra of thermoluminescence (TL) of nano-sized powders ZrO2 stabilized by Y2O3 (YSZ) in the temperature range of 80–350 K have been studied for the first time. For comparison, the TL spectra of pure ZrO2 are obtained. It is found that the TL in undoped ZrO2 is mainly caused by intrinsic defects, whereas, in dope…
Abstract NC11 steel, in view of the specificity of its manufacturing process, is characterised with band-like orientation of carbides. Depending on the direction of cutting the material for the inserts out of commercially available steel products, carbide bands can be oriented in parallel or perpendicularly to the dir…
The dynamic stabilities of the icosahedral-like clusters containing up to 2200 atoms are investigated for 15 metal elements. The clusters originate from five different initial structures (icosahedron, truncated decahedron, octahedron, closed-shell fragment of an HCP structure, and non-closed-shell fragment of an HCP s…
The previously published photoluminescence spectra of bulk germanium single crystals with orientations (100), (110), and (111) under different biaxial tensile strains have been investigated using the differential method proposed by the author for the analysis of luminescence spectra of semiconductors. An increase in t…
Glioblastoma multiforme (GBM) is the most common malignant primary tumour of the central nervous system with an average patient survival mean of 15 months after treatment initiation (typically surgical excision, radiotherapy and adjuvant temozolomide). In almost 90% of all GBMs the PI3K/AKT/mTOR signalling network is…
A dry ball-milling process has been applied to exfoliation of layered bulk materials of MoS2 and WS2 in the presence of sodium cholate as an exfoliant and a stabilizer. The resulting two-dimensional (2D) nanosheets are very stable for long periods of time and hence can be stored as a “stock solid”. An aqueous dispersi…
A new battery material that is composed of polyglycidol and a redox-active anthraquinone unit (AQ) was prepared and was then used as a positive electrode for lithium ion batteries. Polyglycidol (pGD) is a bio-based polymer that is derived from the waste glycerin that is discarded during bio-diesel processing. The pGD-…
The paper presents the key problems that hinder the introduction of new fuel for Russian automobile manufacturers. By analyzing the energy market, as well as trends and forecasts of crude oil and petroleum product prices, it proposes the necessary steps for the Government, along with oil producers and automakers, to g…
The oxidative dehydrogenation of ethane to ethene was investigated over the catalyst composed of tin and tungsten oxides at 923 K under atmospheric pressure. A pure SnO 2 catalyst showed the high ethane conversion but low ethene selectivity (the major product was carbon dioxide). On the other hand, a pure WO 3 catalys…
The results of the investigation of the electronic structure of the conduction band in the energy range 5–25 eV above the Fermi level E F and the interfacial potential barrier upon deposition of aziridinylphenylpyrrolofullerene (APP-C60) and fullerene (C60) films on the surface of the real germanium oxide ((GeO2)Ge) h…
Abstract A mixed liquid crystalline system consisting of 4‐(octadeca‐1,3‐diynyl)benzoic acid (14PhDA) and 4‐tetradecanoxybenzoic acid (14OBA) exhibits different mesophases depending on their composition and the temperature. A mechanism is investigated for the formation of mixed liquid crystalline phases and the transf…
Blood, simulated body fluids, and many cell culture media are supersaturated solutions with respect to several calcium phosphates. Therefore biomaterials can act as nucleation agents and evoke heterogeneous nucleation of salts on the surface of immersed biomaterials. Depending on the field of application, this can be…
Leveraging on plasmonic hot electrons is an emerging strategy for electron–hole separation towards efficient photovoltaics and photocatalysis. On page 960, X. Huang, S. J. Wang, S. J. Chua, and co-workers extend this concept to electron–hole recombination for illumination, which is rarely reported. By taking advantage…
The specific features of quantum oscillations of the magnetization in quasi-two-dimensional wide-band-gap antiferromagnetic semimetals with a low concentration of charge carriers have been considered theoretically. It has been shown that, in these systems, the Fermi energy determined from the analysis of the frequency…
Abstract Biomineral bildende Systeme sind weitverbreitet in der Natur, haben jedoch erst in den letzten Jahren größere Aufmerksamkeit erlangt im Hinblick auf die Entwicklung neuer Materialien und deren Anwendung in Medizin und Technik. Beigetragen haben hier insbesondere die Entwickung der modernen Nanotechnologie sow…
One of the effective methods to break the chips is using complex groove in actual cutting. The chips of cylindrical shell material 2.25Cr-1Mo-0.25V in heavy-duty cutting are hard to break and the viscosity of 2.25 Cr-1 Mo-0.25 V is big, and aiming to this, the chip shapes of cylindrical shell material is analyzed thro…
불소가 함유된 폴리우레탄 코팅 용액을 과불화 알코올, toluene diisocyanate와 polycarbonate diol을 출발물질로 사용하여 합성하였다. 이렇게 합성된 불소 함유 폴리우레탄 코팅 용액을 기재인 PC 위에 스핀 코팅 후 $120^{\circ}C$ 에서 열경화시켜 코팅 필름을 제조하였다. 제조된 코팅 필름의 물성을 FT-IR spectroscopy, UV-visible spectrometer, 접촉각 측정기와 연필경도 측정기를 사용하여 분석하였다. 과불화 알코올의 첨가는 코팅 필름의 발수성을 향상시켜, 물 접촉각을 $81^{\circ}C$ 에서…
The conditions (regimes of deposition and thermal treatment) for gas bubble formation in ferroelectric Pb(Ti1–y Zr y )O3 films have been determined by thermal desorption and electron and optical micros-copy. A mechanism of bubble formation has been proposed. This mechanism rests upon the notion that lead can form oxid…