Materials Literature
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This paper describes two methods of preparation of magnetic fluids based on associated polymers. The first method is ultrasonic (US) dispersing of magnetite microparticles (MP) in aqueous solutions of associated polymers such as hydrophobically modified polyacrylamides (HM PAAm) – terpolymers of acrylamide (AAm), sodi…
Praseodymium doped silver borate glasses with nominal composition xPr6O11−(25−x)Ag2O−75B2O3 (x=0, 1, 2, 3, 4, 5) were prepared by melt quench technique. XRD pattern shows that there is no sharp peak it confirms the amorphous nature of the present glasses. The glass transition temperature (Tg) of this glass system have…
We study the near-field optical properties of a diamond nanocrystal hosting a single NV center. Using a single NV center as a probe of the electromagnetic mode structure, we demonstrate nanoscale fluorescence lifetime imaging microscopy.
ゼオライト触媒を用いてバイオエタノールからプロピレンを合成するプロセスについて，実験値を説明できるように反応機構の探索・構築ならびに反応速度定数の決定を行い，プロセスのシミュレーターを開発した．最終的に決定された反応機構は，16の化学種が関与する28の反応式から構成されている．反応速度定数（頻度因子と活性化エネルギー）の値は，反応シミュレーションによる計算値と実験値の差を最小にする非線形最適化問題として，遺伝的アルゴリズムを用いて解くことにより決定した．シミュレーターによる計算結果は，プロピレンやエチレン等の主要成分の実験結果をよく説明できており，反応器の最適な設計・操作に役立つことが期待される．
Sm metal is a ferromagnet with a very small net magnetization as it comprises nearly compensated local moment (4f-orbital moment slightly greater than the 4f-spin moment) which is coupled to conduction electrons via RKKY exchange mechanism and results in antiferromagnetically coupled alignment between total local mome…
In this study, barium metaborate (BaB2O4, BMB) synthesis from the borax solution was carried out. BMB currently is used in production of ceramic glazes, luminophors, oxide cathodes as well as additives to pigments for aqueous emulsion paints and also β−BaB2O4 single crystals are the best candidate for fabrication of…
We report the effect of repetitive strain on the electrical durability of graphene-based flexible, transparent and conductive films (GTCFs). The graphene is catalytically synthesized on a Ni thin film by using thermal chemical vapor deposition. The synthesized graphene is transferred to a SiO 2 -covered Si wafer and t…
The oxidation of Ferritic Stainless Steel (FSS) grade Crofer 22 APU has been investigated. FSS alloys were exposed to isothermal conditions in a horizontal tube furnace at a 700 °C in flowing Ar−75%CO2−12%H2O at a pressure of approximately 1 atm. The results showed that the growth of non protective Fe2O3 and spinel wa…
TFA-MOD approach of YBa2Cu3O7-x (YBCO) films has been approved to be the most promising method for mass production of low cost high temperature coated conductors. In order to reduce the decomposition time and improve the properties of YBCO films, copper propionate was used as the precursor and certain Lewis-bases were…
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation X. Hao, Z. Yuan, J. Wang, X. Lu; An InGaAs detector based radiation thermometer and fixed-point b…
A microwave detection method was applied to study weak localization and antilocalization in epitaxial graphene sheets grown on both polarities of SiC substrates. Both coherence and scattering length values were obtained. The scattering lengths were found to be smaller for graphene grown on C-face of SiC. The decoheren…
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation Gülşah Germen, Hüseyin Şevik, S. Can Kurnaz; Influence of strontium addition on the mechanical pr…
Dissolution of powder cellulose samples from flax wastes and wood pulps in the dimethylacetamide-LiCl solvent was studied. The decisive factors of cellulose dissolution are the degree of chemical “purity” of cellulose and the degree of polymerization. The cellulose I supramolecular structure of the initial samples tra…
Toluene is one of the major pollutants of indoor air pollution. Acrylonitrile-vinylidene chloride (AN-VDC) copolymer fibers containing activated carbon were wet-spun; and loaded with Cu-Mn oxide complex. The morphology and performance of the fiber was characterized using scanning electronic microscope (SEM), X-ray dif…
We extend an approximate theory in order to examine the properties of the One-Component Plasma of similarly charged rodlike polyelectrolytes model from the weak to the strong coupling regime. In addition to the Coulomb interactions which are present within this system, the excluded volume interaction between the charg…
Ionisation potentials reported in the literature and estimated molecular constants have been used to derive the heat capacities, entropies and standard enthalpies of formation for the lanthanide monohalide gaseous cations, LnX+ , Ln=Ba & La to Lu and X=F, Cl, Br, I.
Hydroxycinnamate derivatives which are polymerizable phenolic acids show two-types photoreactions such as intramolecular E-Z isomerization and intermolecular [2 + 2] cycloaddition. Although five derivatives of hydroxycinnamic acid were tried to polymerize by a conventional one-bottle method, only two polymers of poly(…
Routing is a key design factor to obtain the maximum performance out of interconnection networks. Depending on the number of routing options that packets may use, routing algorithms are classified into two categories. If the packet can only use a single predetermined path, routing is deterministic, whereas if several…
Mechanical tests have been carried out to accurately evaluate the tensile properties of fiber metal laminates (FMLs). The FMLs in this paper comprised of a layer of self-reinforced polypropylene (SRPP) sandwiched between two layers of aluminum alloy 5052-H34. In this study, nonlinear tensile and fracture behavior of F…
The effects of electromagnetic stirring and Al4C3grain refiner on the grain refinement of semi-continuously cast AZ31 magnesium alloy were discussed in this investigation. The results indicate that electromagnetic stirring has effective refining effect on the grain size of AZ31 magnesium alloy under the effect of Al4C…