EFFECT OF AC MAGNETIC FIELD ON ELECTRIC RESISTANCE OF Sn-20%Pb ALLOY
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Occurrence of silk stitch abscess after surgery in patients with oral squamous cell carcinoma
OBJECTIVES: To elucidate the predisposing factors and clinical characteristics related to the occurrence of stitch abscess after surgery in patients with oral squamous cell carcinoma (SCC). PATIENTS AND METHODS: The subjects were 232 patients who underwent excision and/or reconstruction and/or neck dissection for oral…
Catalyst free growth of ZnO nanorods by thermal evaporation method
In this work, we report catalyst free growth of ZnO nanorods on n-Si substrate by a low cost thermal evaporation method. The surface morphology, chemical composition and crystalline structure of ZnO nanorods have been determined by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and X-ray diff…
Photoluminescence Characteristics of Silicon Quantum Dots Nanoparticles (SQDNs) Embedded on Glass Surface
Photoluminescence of silicon quantum dots nanoparticles (SQDNs) embedded on glass surface was measured by using Photoluminescence Spectroscopy (PL) at room temperature with a laser source of 512.32 nm. SQDNs were prepared by using electrochemical etching process, used p-type silicon (Si) wafer. The Si wafer was etched…
Corrosion of Pipe Steel in CO2 Containing Impurities and Possible Solutions
CO 2 flue gases acquired from different sources contain a significant amount of impurities and water, which are corrosive to the pipeline steel. To design the pipelines for large scale of CO 2 flue gas transport, the corrosion of pipeline steels has to be investigated in the realistic conditions. In this paper, corros…
Lack of nephrotoxicity of gadopentetate dimeglumine-enhanced non-vascular MRI and MRI without contrast agent in patients at high-risk for acute kidney injury
BACKGROUND: Gadolinium chelates (GCs) have been traditionally considered as non-nephrotoxic magnetic resonance imaging (MRI) contrast materials. However, it has been suggested in some recent articles that GCs may have a nephrotoxic potential, but most of these reports are retrospective. However, the evaluated contrast…
Synthesis and Characterization of Rich Delafossite CuYO2+X Application for Solar Energy Conversion
Here we report the synthesis and some physical properties of superoxides CuYO2.51 and CuYO2.25 prepared from the delafossite CuYO2 respectively by thermal oxidation at 380 °C under O2-flow and soft chemistry in NaBrO (5N) solution and their applications as catalysts for solar energy conversion in a chemical H2 evoluti…
Compositional Dependence of the Proton Conductivity of Anodic ZrO2-WO3-SiO2Nanofilms at Intermediate Temperatures
Novel proton-conducting ZrO 2 -WO 3 -SiO 2 nanofilms of various compositions and thicknesses (∼50 to ∼300 nm) have been prepared by anodizing of magnetron-sputtered Zr-W-Si alloys in 0.1 mol dm −3 phosphoric acid electrolyte at 20°C. All the anodic oxide nanofilms examined reveal efficient proton conductivity after po…
Visible light induced synthesis of fluorescent silver clusters in reverse micelles
A light-induced reverse micelle mediated method was developed for the preparation of stable Ag clusters in high yield. The clusters exhibit a molecule-like UV-Vis spectrum consisting of five absorption bands, emit red fluorescence and have chiroptical properties.
Mechanism of amorphous Ge2Sb2Te5removal during chemical mechanical planarization in acidic H2O2slurry
In this paper, chemical mechanical planarization (CMP) of amorphous Ge 2 Sb 2 Te 5 (a-GST) in acidic H 2 O 2 slurry is investigated. It was found that the removal rate of a-GST is strongly dependent on H 2 O 2 concentration and gradually increases with the increase in H 2 O 2 concentration, but the static etch rate fi…
High‐transmittance in‐plane switching liquid crystal display device driven by three‐level voltages
Abstract We propose a single‐layered electrode structure using three voltage levels instead of two to achieve high transmittance in an in‐plane switching liquid crystal display device. The proposed structure consists of two pixel electrodes and one common electrode. By using three voltage levels, we can generate an in…
Bisimidazole and Bisimidazolium Cruciforms: Synthesis and Discrimination of Organic Acids
Bisimidazole cruciforms 4a&b based on 1,3-di(imidazol-1-yl)-benzene were synthesized in good yields via the Sonogashira coupling of 1,5-dibromo-2,4-diiodobenzene with 4-ethynyl-N,N-dimethylaniline and 4-ethynyl-N,N-dibutylaniline followed by the N-arylation with imidazole. Further quaternization of 4 with iodomethane…
In vitro controlled release of an anticancer drug, chlorogenic acid using magnesium/aluminium layered double hydroxide as nanomatrix.
An anticancer agent, chlorogenic acrd was intercaiated into 2D nanolamellae of Mg/Al-NO3-layered double hydroxide through the direct, co-p recipitation and indirect, ion exchangetechniques, for the formation of new nanocornposites, CMAC and CMAE, respectively. The loaading amount of chlorogenic acid in the nanocomposi…
PAN Nanofibers and Nanofiber Reinforced Composites
Nanomaterials play an important role in the development of nanotechnology. They possess unique mechanical, physical, and chemical properties coupled with small size and ultrahigh surface area that can provide critical advantages for applications. Continuous nanofibers attract special interest due to their dual nano-ma…
Electrosynthesis and Characterization of an Electrochromic Material from Poly(1,6-Bis(2-(3,4-Ethylenedioxy)Thienyl)Pyrene) and Its Application in Electrochromic Device
1,6-bis(2-(3,4-ethylenedioxy)thienyl) pyrene monomer was successfully synthesized and electropolymerized. Characterizations of the resulting polymer poly(1,6-bis(2-(3,4- ethylenedioxy)thienyl)pyrene) (PEPE) were performed by cyclic voltammetry (CV), UV-vis spectroscopy, scanning electron microscopy (SEM). The resultin…
Effect of Bifunctional Isocyanate Linker on Adsorption of Chromium(VI) Diphenylcarbazide Complex onto b-Cyclodextrin
Chromium is one of the toxic heavy metals and is a major pollutant in wastewater. The chromium is originates from widespread use in various industries such as metallurgical, refractory and chemical. Chromium exists in two stable oxidation states, Cr(III) and Cr(VI). Both of them have drastically different charge, phys…
Adsorption Thermodynamics, Kinetics and Mechanism of Calcium(II) Ions onto Kaolinite Clay in Coal Slime Water
Slime water is a highly concentrated micro-solid-liquid suspension-dispersion system which is mainly consisted of kaolinite and other clay minerals. The existence of these fine clay particles is one of the reasons why slimes water is difficult to clarify. In this work, the adsorption thermodynamics, kinetics and mecha…
Local Non-Equilibrium Thermal Effects in Solid Oxide Fuel Cells with Various Fuels
Local thermal equilibrium (LTE) is a common assumption used in thermal modeling of solid oxide fuel cells (SOFCs). However, its validity has not been fully verified. To examine the validity of the LTE assumption, a thermal model has been developed to evaluate the local thermal non-equilibrium effect of SOFC electrodes…
Effect of cerium and lanthanum additives on plasma electrolytic oxidation of AZ31 magnesium alloy
Plasma electrolytic oxidation(PEO) coatings on AZ31 magnesium(Mg) alloy were developed using the aqueous solution with alkaline silicate and sodium hydroxide as a base electrolyte system.The effects of cerium(Ce) nitrate and lanthanum(La) nitrate additives on the voltage response,microstructure,compositions and corros…
Preparation and thermoelectric transport properties of Ba-, La- and Ag- doped Ca3Co4O9 oxide materials
Ba- ，做 La 、做 Ag 的多晶的 Ca2.9M0.1Co4O9 (M=Ca， Ba， La， Ag ) 热电的体积样品经由合成方法由火花血浆 sintering 跟随了的柠檬酸盐酸大音阶的第五音胶化被准备技术。体积样品关于他们的阶段作文，谷物取向以及微观结构被描绘并且分析。高温度体积样品的热电的运输性质详细被学习。所有体积样品被发现是有修改身体质地的 single-phased。电的抵抗力由于搬运人集中修正被调制，然而，搬运人运输过程没被影响；Seebeck 系数同时被败坏。全部的热传导性显著地被减少，由于声子减少热电导率。Ba- ， La- ，和做 Ag 的体积样品的热电的性质被优化，并且做 Ba 的 Ca2.9Ba0.…