Equilibrium phase relationships in the ZnO–In2O3 system were determined between 1100° and 1400°C using solidstate reaction techniques and X-ray diffractometry. In addition to ZnO and In2O3, nine homologous compounds, ZnkIn2Ok+3 (where k = 3, 4, 5, 6, 7, 9, 11, 13, and 15), were observed. Electrical conductivity and diffuse reflectance of the k = 3, 4, 5, 7 and 11 members were measured before an...

We present the development of three local oscillator chains to be used on the CASIMIR (Caltech Airborne Submillimeter Interstellar Medium Investigations Receiver) instrument onboard the SOFIA (Stratospheric Observatory for Infrared Astronomy) aircraft. All three chains use all solidstate GaAs-based components to amplify and multiply a ~1-3 mW input signal at W band. At room temperature, the 900...

The term “bicelles” was first proposed in 1995 to describe aqueous assemblies of detergent and lipid that were believed to be “binary, bilayered mixed micelles bearing a resemblance to the classical model for bile saltphosphatidylcholine aggregates” [1]. At that time, bicellar mixtures had already been in use for several years as magnetically alignable model membranes in solidstate NMR studies ...

Recent work at Los Alamos National Laboratory has demonstrated the physical principles for a new type of solidstate cryocooler based on anti-Stokes fluorescence1. From our laboratory work and computer simulations we estimate that a practical, first-generation, all-solid-state fluorescent cryocooler will have the following properties2: • no vibrations • will not produce and is not susceptible to...

An intramolecular Diels-Alder (IMDA) reaction was observed at room temperature between an allyl group and a chloroanthracenyl group that were both bonded to the vinylidene ligand of the cationic ruthenium complex [Ru]dCdC(CH2CHdCH2)CH(CH2CHdCH2)(C14H8Cl) (6; [Ru] ) Cp(PPh3)3Ru). The vinylidene ligand functions as a mediator to bring the allyl and the chloroanthracenyl groups in proximity for th...

-This paper describes a newly developed triggering circuit, has been use to turn on and off the solidstate switches, such as TRIAC switched capacitors applications. A linear ramp signal based synchronization technique has been propose and implemented successfully, for the capacitor switching operation of a simple power system. This scheme enables the firing circuit to adjust itself against any ...

the main aim of this research is to determine optimal leaching conditions; eh, ph and complexing agent concentrations, for recovery of copper from hydroxide sludges such as those produced by electroplating shops, metal finishers, treatment of acid mine drainage, and industrial wastewater in general. this has been preceded by a theoretical approach and numerical and computer calculation. potenti...

Medicinal chemistry depends on many other disciplines ranging from organic chemistry andpharmacology to computational chemistry. Typically medicinal chemists use the moststraightforward ways to prepare compounds. The validation of any design project comes from thebiological testing.Studies of the binding site of vinblastine by a single cross—linking experiment identified it asbeing between resi...