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Showing 1 to 14 of 14 for “"Metallic ions"”.
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Coulometric Determination of Metallic Ions and an Electrochemical Study of Metal Oxides in Fused Lithium-Chloride - Potassium-Chloride Eutectic
Made available in DSpace on 2014-12-05T19:37:13Z (GMT). No. of bitstreams: 1 6000146.pdf: 3645441 bytes, checksum: 858689a3f9e2622886fdeb0eb45a5842 (MD5) Previous issue date: 1959
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Compuestos de coordinación de iones de metales de transición con ligandos heterocíclicos dadores de S,N
… and their coordination ability with several metallic ions (Co2+, Cu2+, Zn2+, Cd2+). The compounds have been characterized through elemental analysis, IR, UV-Vis-NIR diffuse reflectance, EPR, magnetic susceptibility, mass spectroscopy, X-ray single-crystal and powder diffractometry. Besides, …
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Metals in Chemistry and Biology: Computational Chemistry Studies
Numerous enzymatic reactions are controlled by the chemistry of metallic ions. This dissertation investigates the electronic properties of three transition metal (copper, chromium, and nickel) complexes and describes modeling studies performed on glutathione synthetase. (1) Copper nitrene complexes …
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Determination of Hardness in Water by Ion Exchange
… chiefly by the calcium and magnesium ions commonly present in water; but it may also be precipitated by the ions of other polyvalent metals, such as iron, aluminum, manganese, strontium, and zinc. Therefore, the theoretical hardness of a water is defined as the sum of the …
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Midlatitude sporadic-E layers
… in the horizontal plane but contain localized regions of high electron density. This is investigated using data obtained by incoherent-scatter radar and is found to provide a satisfactory explanation. The main features of mid latitude sporadic-E layers are consistent with the convergence of …
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Pretreatment of coal by anodic electrolysis of acidified coal- water slurries
… of the pretreatment were examined as functions of coal particle size, acid strength of the slurry, time of electrolysis and applied potential. The coal electrolysis was found to be most efficient at low acid strengths and short electrolysis times. The morphology of the coal surface changed …
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Structure of nickel-iron and nickel-zinc electrodeposits
… Competition for discharge between hydrogen and metallic ions at the changing deposit surface, including changes in its electrochemical nature are considered. In addition possible effects resulting from adsorbed species, including co-discharged hydrogen as well as other species such as hydroxyl …
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Aplicación de técnicas quimiométricas a la resolución de señales electroquímicas solapadas
… one, inorganic, constituted by thallium and lead ions, and the other one, organic, constituted by four chlorophenols: 4 methyl-3-chlorophenol (MF), 4-chlorophenol (CF), 2,4-dichlorophenol (DCF) and 2,4,6-trichlorophenol (TCF). Both systems were studied with amperometric electrochemical sensors: …
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Preparation, Separation, Characterization and Hydrogenation of Endohedral Metallofullerenes
… to their novel structures and potential applications in a variety of fields such as biomedical applications and molecular electronics. This dissertation addresses the structural characterization and hydrogenation of EMFs. A family of novel large cage yttrium-based TNT EMFs Y₃N@C₂ₙ (n=40-44) was …
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Formation of screen-printed contacts on multicrystalline silicon (mc-Si) solar cells
… of glass is given. This mechanism leaches metallic ions (solvent metals such as Pb, Bi or Zn), which cover the Ag particles and form a material of surface composition with low-melting-point. The low-temperature melt facilitates agglomeration of Ag and formation of a shallow alloy between …
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Fabrication and characterization of a magnetic bacterial nanocellulose for neurovascular reconstruction of cerebral aneurysms
… properties for tissue engineering applications such as biocompatibility, high swell ratio, and high tensile strength. D-glucose chains abundant in hydroxyl groups conform the BNC's chemical structure, which are able to adsorb metallic ions and compounds with functional groups active on …
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In-situ plasmon-enhanced characterization of optically accessible ultra-thin film ferroelectric devices
… technique, direct observation of migration of metallic ions or the intercalation of ions into the lattice of binary oxide memristive materials. This alters the local electronic environment and, as a result, the material's resistive state. Because the NPoM method is flexible, it can be used to …
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Corrosion Dynamics of Cobalt-Chromium Alloy F-75 Powder
… concern regarding the inevitable generation of metallic wear debris. Patients with these joint replacements exhibit elevated concentrations of cobalt and chromium ions within their serum, blood and urine. The presence of these metal ions suggests the potential for bodily damage and indicates …
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Voltage Effects on Cells Cultured On Metallic Biomedical Implants
<p>Electrochemical voltage shifts in metallic biomedical implants occur in-vivo due to a number of processes including mechanically assisted corrosion. Surface potential of biomedical implants and excursions from resting open circuit potential (OCP), which is the voltage they attain while in …