A high-pressure synthesis of hydrothermally stable periodic mesoporous crystalline aluminosilica materials
We report a synthetic route to mesoporous crystalline aluminosilica materials using high pressure and temperature.
Materials Literature
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Stabilities and defect-mediated lithium-ion conduction in a ground state cubic Li 3 N structure
A stable ground state structure with cubic symmetry of Li3N (c-Li3N) is found by an ab initio initially symmetric random-generated crystal structure search method. Gibbs free energy, calculated within quasi-harmonic approximation, shows that c-Li3N is the ground state structure for a wide range of temperatures. The c-…
A cryo lubri-coolant approach for finish milling of aeronautical hard-to-cut materials
Use of heat-resistant alloys is growing worldwide in aeronautical turbo-machinery industry. One of the most used materials is Inconel 718. This material is featured by high resistance to corrosion and oxidation while keeping good mechanical properties at high temperature. However, low machinability of this material re…
Radiophotoluminescence Properties of Ag-Doped Phosphate Glasses Containing Different Alkali Metal Cations
For many years, the radiophotoluminescence (RPL) of Ag-doped phosphate glass has been exploited in personal dosimetry. In this study, we investigated the optical properties of Ag-doped phosphate glasses of various compositions containing alkali metals as cations. We found that the peak wavelengths of the RPL bands dep…
Marsdenia tenacissima extract suppresses A549 cell migration through regulation of CCR5-CCL5 axis, Rho C, and phosphorylated FAK
Marsdenia tenacissima, a traditional Chinese medicine, is long been used to treat various diseases including asthma, cancer, trachitis, tonsillitis, pharyngitis, cystitis, and pneumonia. Although Marsdenia tenacissima has been demonstrated to have strong anti-tumor effects against primary tumors, its effect on cancer…
FUNDAMENTAL STUDY ON ANTI-CORROSION CHARACTERISTICS OF Al-5Mg ALLOY THERMAL SPRAYING COATINGS IN HIGHLY CORROSIVE ENVIRONMENT WITH NaCl
合金溶射皮膜の耐食・防食特性については，これまで様々な腐食試験が行われてきたが，Al-5Mg合金溶射については不明な点が多い．本研究ではNaClが介在する高腐食性環境におけるAl-5Mg合金溶射皮膜の耐食・防食特性を評価することを目的とした．そのために，溶射皮膜にクロスカットを導入した鋼板の複合サイクル腐食促進試験，電気化学試験および皮膜の付着強度試験を実施した．また，Zn-15Al合金溶射とC-5系重防食塗装についても同様な試験を実施し，Al-5Mg合金溶射と比較した．これらの試験結果から，Al-5Mg合金溶射のカット部の耐食・防食性は，Zn-15Al合金溶射とC-5系塗装に比して著しく高く，JIS K5600-7-9のサイクル…
First-principle study of the magnetism and photocatalyticactivity of RE(La/Ce/Pr/Nd) doping anatase TiO2
The models of pure TiO2 and La/Ce/Pr/Nd singly doped TiO2 are established by using the plane wave potential based on density functional theory. After geometry optimization, the stability of the mixed structure is analyzed by calculating the formation energy. Then the magnetic state of each doped model is analyzed by c…
Impact of tunnel-barrier strength on magnetoresistance in carbon nanotubes
We investigate magnetoresistance in spin valves involving CoPd-contacted carbon nanotubes. Both the temperature and bias-voltage dependence clearly indicate tunneling magnetoresistance as the origin. We show that this effect is significantly affected by the tunnel-barrier strength, which appears to be one reason for t…
On-chip fabrication of lateral growth ZnO nanowire array UV sensor
In this paper, we integrate nano technology into traditional microelectronic processing, and develop an on-chip UV sensor based on lateral growth ZnO nanowire arrays. Traditional procedures are used to fabricate the interdigital electrodes, and ZnO nanowires are self-organized and grown between electrodes laterally by…
Research on coordinate transformation design of a cylinderical acoustic cloak with pentamode materials
The pentamode material, similar to fluid in physical properties, serves as a useful way for the physical implementation of the anisotropic fluid. Based on the similarity, a method to design cloak with the pentamode materials has been put forward by Norris. To analyze the effect factors and rules of the stealth perform…
Molecular dynamics study on relaxation properties of monolayer MoS2 nanoribbons
In order to study the essential structural characteristics of monolayer MoS2 nanoribbons in natural state, and also the effects of the aspect ratio and the ambient temperature on the relaxation properties of the nanoribbons, the relaxation properties of monolayer MoS2 nanoribbons with different aspect ratios are simul…
Inhibition of Copper Corrosion by Ethanolamine in 100 ppm NaCl
We study copper corrosion inhibition by ethanolamine (ETA)with (0, 0.2 ,0.3,0.4,0.5) vol.% concentrations in 100 ppm NaCl solution. This work is carried out by potentiodynamic measurements and Electrochemical Impedance Spectroscopy (EIS). The substrates' surface morphologies are examined by Scanning Electron Microscop…
Synthesis of Porphyrins from α-Unsubstituted Dipyrromethanes
The conditions for the porphyrin synthesis by condensation of -unsubstituted dipyrromethanes and ortho-formic ester in the presence of organic acids are investigated. The optimal reaction conditions are found, and a series of and meso-substituted porphyrins is synthesized. The methods of the -unsubstituted dipyrrometh…
Plasma deposited polyoxazoline coatings, a versatile new class of biomaterials
PolyOxazolines are a nascent class of polymers in the biomedical field, featuring equivalent or even superior properties to well-established counterparts such as Polyvinylpyrrolidone and Polyethyleneglycol. However, creating oxazoline-based coatings via conventional wet processes is challenging and this somewhat hinde…
Contact-dependent transfer of TiO2 nanoparticles between mammalian cells
Cellular organelles have been shown to shuttle between cells in co-culture. We hereby show that titanium dioxide (TiO<sub>2</sub>) nanoparticles (NPs) can be transferred in such a manner, between cells in direct contact, along with endosomes and lysosomes. A co-culture system was employed for this purpose and the NP t…
Retracted Article: Facile synthesis of hierarchical Mn 3 O 4 superstructures and efficient catalytic performance
Mn <sub>3</sub> O <sub>4</sub> hausmannite structures with uniform three-dimensional flower-like hierarchical superstructures have been successfully synthesized by using surfactants as structure-directing agents.
Surface defects of anodized HPDC Al alloy components
Aluminum high-pressure die casting (HPDC) technology is particularly suitable for making complex part shapes in the automotive industry in order to reduce the cost and weight of various components. The automotive industry uses for anodized aluminum are endless. On the other side, diecastings pose some of the most chal…
Development of PEA Measurement System with High Positional Resolution and Typical Measurement Results of Space Charge Distribution
Space charge accumulation in insulating material under a high electric field is said that it is closely related to the breakdown of the insulating material. Since a thin insulating film is used as a flexible printed circuit board, such high stress might be generated in the film. Therefore, it is required to measure th…
Corrosion Inhibitive Effect of 2-(1-(2-Oxo-2H-Chromen-3-Yl) Ethylidene) Hydrazine Carboxamide on Zinc-Aluminum Alloy in 1.8M Hydrochloric Acid
The corrosion inhibition of Zinc-Aluminum alloy in 1.8 M of hydrochloric acid solution by 2- (1-(2oxo-2H-chromen-3-yl) ethylidene) hydrazine carboxamide was carried out using weight loss method. Zinc-Aluminum coupons were immersed in test solution of blank and solutions of 0.001 M, 0.002 M, 0.003 M and 0.004 M of the…
Synthesis of nanoparticles by green chemistry process and their application in surface coatings: A review
Nanoparticles are in the size ranges from 10-100 nm. The appearance and usefulness of nanoparticles brings many advantages and opportunities to paint and coating industry. Addition of nanoparticles to coatings can improve many properties of coating system. These nanoparticles can be synthesized by physical, chemical a…