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Now showing items 271-280 of 312
Synthesis, structure, magnetic properties and aqueous solution characterization of p-hydroquinone and phenol iminodiacetate copper(ii) complexes
(2008)
The reaction of Cu2+ acetate monohydrate with 2-[N,N′-bis(carboxymethyl)aminomethyl]-4-carboxyphenol (H 4cacp), 2-[N,N-bis(carboxymethyl)aminomethyl]hydroquinone (H 4cah) and the dinucleating 2,5-bis[N,N-bis(carboxymethy ...
Mechanical alloying synthesis of K2Bi8Se 13- type solid solutions
(Affiliation: Department of Mechanical and Manufacturing Engineering, University of Cyprus, Nicosia, 1678, CyprusAffiliation: Department of Physics, Aristotle University of Thessaloniki, Thessaloniki, 54124, GreeceAffiliation: Materials Science Division, Argonne National Laboratory, Argonne, IL 60439, United StatesAffiliation: Department of Chemistry, Northwestern University, Evanston, IL 60208, United StatesCorrespondence Address: Toumpas, N.Department of Mechanical and Manufacturing Engineering, University of Cyprus, Nicosia, 1678, Cyprus, 2008)
Solid solutions of β-K2Bi8-xSb xSe13 are an interesting series of materials for thermoelectric investigations due to their very low thermal conductivity and highly anisotropic electrical properties. In this work, we aimed ...
Three-dimensional microscopy of the tumor microenvironment in vivo using optical frequency domain imaging
(2009)
Intravital multiphoton microscopy has provided powerful mechanistic insights into health and disease and has become a common instrument in the modern biological laboratory. The requisite high numerical aperture and exogenous ...
Vanadium(IV) - Citrate complex interconversions in aqueous solutions. A pH-dependent synthetic, structural, spectroscopic, and magnetic study
(2001)
Citrate is abundantly encountered in biological fluids as a natural metal ion chelator. Vanadium participates in biological processes as a catalyst in the active sites of metalloenzymes, as a metabolic regulator, as a ...
Defect states of chemical vapor deposition grown GaN nanowires: Effects and mechanisms in the relaxation of carriers
(2009)
Carrier relaxation in GaN nanowires, grown by atmospheric pressure chemical vapor deposition, via direct nitridation of Ga with NH3 at 950 °C has been investigated in detail. Differential absorption measurements reveal a ...
Three different types of quasi-model networks: Synthesis by group transfer polymerization and characterization
(2007)
Group transfer polymerization (GTP) chemistry was employed for the preparation of polymethacrylate networks of controlled structure (quasi-model networks) of three different types: (a) regular quasi-model networks, in which ...
Local structure and influence of bonding on the phase-change behavior of the chalcogenide compounds K1-xRbxSb5S8
(2007)
KSb5S8 and its solid solution analogs with Rb and Tl were found to exhibit a reversible and tunable glass→crystal→glass phase transition. Selected members of this series were analyzed by differential scanning calorimetry ...
A two-dimensional numerical study of the stick-slip extrusion instability
(2007)
The time-dependent, compressible extrusion of a Carreau fluid is solved over the reservoir-die-extrudate region using finite elements in space and a fully implicit scheme in time. A nonmonotonic slip law based on experimental ...
Scanning tunneling microscopy of defect states in the semiconductor (formula presented)
(2002)
Scanning tunneling spectroscopy images of (formula presented) doped with excess Bi reveal electronic defect states with a striking shape resembling clover leaves. With a simple tight-binding model, we show that the geometry ...
On the analogy between streamlined magnetic and solid obstacles
(2009)
Analogies are elaborated in the qualitative description of two systems: the magnetohydrodynamic (MHD) flow moving through a region where an external local magnetic field (magnetic obstacle) is applied and the ordinary ...