Materials Literature
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The usefulness of activated silica-filled CACF filters from EURO FILTR’EAUX for restoring chemical quality of water delivered to the end user, and therefore limiting scale formation on the surface of devices, and consequently their damage was studied. The study was performed for three different water types, which were…
The effect of boron (B) doping on paramagnetic to ferrimagnetic transition in TbCo2 has been studied. TbCo2Bx with x = 0, 0.05, 0.1, 0.15 and 0.20 are prepared by arc melting method. As prepared sample with x < 0.20 are found to be single phase and crystallize in cubic structure. With B doping, lattice parameters and…
Impact of Cr2+ ion substitution on the crystal and lattice structure of Mn0.5Zn0.5-xCrx Fe2O4 (x = 0.0, 0.25 and 0.5) ferrites as synthesized by Co-precipitation method has been investigated by laboratory and synchrotron sources. Laboratory source x-ray diffraction confirms no structural transformation from cubic (Fd3…
筆者らは高分子ゲルの高機能化に向けて，高分子精密合成の観点からゲルを設計する研究を進めている．本報ではまず，可逆的付加開裂連鎖移動(RAFT)重合機構を応用した例として，均一網目の創成を志向した末端架橋法による自己修復性ゲルの合成と，重合中にビニル基間の距離が変化する新規架橋剤を用いたゲル合成について紹介する．また筆者らは線状高分子におけるモノマー配列制御に端を発し，複数のモノマーを組合せたゲルの膨潤特性について，網目鎖中のモノマー連鎖配列の重要性に注目している．本報ではその先駆けとして，単独では温度応答性を示さない親水性および疎水性モノマーを組合せることにより温度応答性を発現した例と，親水性鎖を組込んだ温度応答性ゲルの膨潤特性に…
Nitrogen-doped nanocrystalline-FeSi2 (NC-FeSi2) thin films were deposited on SiO2 substrates at room temperature by radio frequency magnetron sputtering, and the effects of nitrogen-doping were experimentally studied. X-ray diffraction measurements revealed that the lattice constant of nano-sized grains increases by n…
Abstract Flower-structured BiOBr photocatalyst has been synthesized successfully with Gemini surfactant as bromine source through chemical precipitation procedure. The structure, morphology and optical absorption property of the product have been characterized. The results reveal that the product is pure tetragonal ph…
We have performed a high pressure synchrotron X-ray diffraction study of the ionic salt, cesium fluoride (CsF), up to 120 GPa. We observed the B1 → B2 phase transition near 5 GPa as previously reported. Beyond this pressure, no phase transitions were determined to have occurred up to the highest pressure studied. Unit…
The ZrO2 thin film was grown using pulsed laser deposition (PLD) method and irradiated with 60 keV Kr+ ions. The as-prepared and ion irradiated ZrO2 thin films were characterised with high resolution transmission electron microscope(HRTEM). The as-prepared ZrO2 thin film was found to be monoclinic in structure. Upon 6…
The effects of having a nanopatterned photonic crystal (PC) structure in the surface of a solar cell can be usefully employed to increase the energy conversion efficiency, which may be critical for space applications. In this work, we have measured the reflectance (R) and transmittance (T) of thin InP layers (270 nm t…
Semi-organic lithium hydrogen oxalate monohydrate non-linear optical single crystals have been grown by slow evaporation solution growth technique at 35 °C. Single crystal X-ray diffraction study showed that the grown crystal belongs to the triclinic system with space group P1. The mechanical strength decreases with i…
The topological and energetic properties of the electron density distribution ρ() for the tin-ligand interaction in di-n-butyltin(IV) derivative of glycyltryptophane (H2L) (n-Bu2SnL), the geometric configuration of which was optimized at B3LYP/3–21G/LANL2DZ(Sn) level of theory, have been theoretically calculated at th…
We have investigated strain mediated magnetoelectric coupling and ac impedance properties of 0.5NiFe2O4-0.5PbZr0.58Ti0.42O3 nanocomposite at room temperature. The magnetoelectric voltage coefficient has been calculated from ME voltage for both transverse and longitudinal direction at a frequency of 37 Hz. The magnetoe…
利用壳聚糖(CTS)良好的成膜，抑菌性和L-半胱氨酸(L-cys)良好的抑菌，抗氧化性，通过化学改性法制备了巯基含量高达333 μmol/g的L-cys改性CTS (CTS-cys)。采用抑菌圈法研究了CTS、L-cys和CTS-cys对大肠杆菌、蜡样芽孢杆菌和金黄色葡萄球菌的抑菌效果。实验结果表明：在被测试范围内，L-cys对三种菌株均有很好抑菌性；CTS-cys对大肠杆菌、金黄色葡萄球菌均有较好抑菌效果，最大抑菌率为89%，92.9%，对蜡样芽孢杆菌的最大抑菌率只有60.5%；CTS对三种菌株的最大抑菌率均在50%水平以下，抑菌效果差。壳聚糖半胱氨酸衍生物很大程度上协同了半胱氨酸的抑菌性，大大提高了壳聚糖的抑菌能力。 The…
Zn3V2O8 phosphor nano particle was synthesized by modified sol-gel method using citric acid as chelating agent and ethylene glycol as a binder. The properties of synthesized nano particle were characterized by powder XRD, FTIR, SEM and PL analysis to understand structural formation, organic liberation, surface morphol…
Layered braided composite is widely used in structures. The mechanical analysis of this material is more complicated than that of laminated plate composite materials, so the accurate solution of structure made of this material is fairly difficult to obtain. In this paper, a simplified FEM model is used to analyze the…
We report the soft X-ray absorption spectroscopy (XAS) on pulsed laser deposition (PLD) grown epitaxial BaTiO3 thin film on (001) oriented SrTiO3 substrate. X-ray diffraction studies confirm that film is grown along the [001] direction and is compressed along surface normal. XAS around O K edge and Ti L3,2 edges perfo…
We report the effect of oxidation on the structural, vibrational, magnetic and electrical properties of Fe thin films deposited at ambient temperature directly on silicon substrate using magnetron sputtering technique and post annealed (TA) under air atmosphere. The structural and vibrational properties reveal that as…
Samples of Al2O3/MgO composite with various MgO weight contents were synthesized at high temperature in vacuum. Its phase composition, density and grain size distribution depending on the synthesis temperature and MgO quantity were studied. Composite luminesciense with electron beam excitation was registered.At the re…
In order to prevent the maloperation of the transformer differential protection device affected by transformer magnetizing inrush current and internal short circuit fault current, the device should be able to identify the internal fault current and inrush current. Accordingly, this paper is aimed at adaptive transform…
By taking a certain type of rocket launcher structure as the research object, its loading analysis was carried out. By applying the ANSYS as a tool and by combining a typical working condition to carry out finite element analysis (FEA), the deformation and the stress values under the work condition were obtained, and…