Spin Densities & Charge Densities in Some Fluoro-substituted Naphthalene Radical Anions

335-33

On methods of estimation of maternal heterosis and recombination effects from a specific three breeds crossing system

International audienc

Oxozirconium(IV) Complexes of Nonamethylimidodiphosphoramide

A series of new complexes of the type ZrOX2(NlPA) (X = Cl, Br, I, N03, NCS, NCSe or BPh4) and ZrO(CI04h\u27 2(NlPA) have been synthesised and characterized through molar conductance, molecular weight, magnetic measurement and in dependence on the nature of anion

Multi-band superconductivity and nanoscale inhomogeneity at oxide interfaces

The two-dimensional electron gas at the LaTiO3/SrTiO3 or LaAlO3/SrTiO3 oxide interfaces becomes superconducting when the carrier density is tuned by gating. The measured resistance and superfluid density reveal an inhomogeneous superconductivity resulting from percolation of filamentary structures of superconducting "puddles" with randomly distributed critical temperatures, embedded in a non-superconducting matrix. Following the evidence that superconductivity is related to the appearance of high-mobility carriers, we model intra-puddle superconductivity by a multi-band system within a weak coupling BCS scheme. The microscopic parameters, extracted by fitting the transport data with a percolative model, yield a consistent description of the dependence of the average intra-puddle critical temperature and superfluid density on the carrier density.Comment: 7 pages with 3 figures + supplemental material (4 pages and 5 figures

The BG News January 23, 2009

The BGSU campus student newspaper January 23, 2009. Volume 99 - Issue 84https://scholarworks.bgsu.edu/bg-news/9024/thumbnail.jp

Experimental investigation of ball bearing lubrication conditions by shock pulse method

Lubricant (grease) is a vital requirement of ball bearing system. Grease not only protects ball bearing from wear and tear but performs various other functions that are essential for proper functioning of ball bearings. The lubricant (grease) under different conditions attains different properties which in turn affect the performance of the ball bearings. The effect of the condition of the lubricants on the performance of the ball bearings is well documented. the work reports about the investigation of ball bearing using shock pulse method by using two different instruments (Tester T2000 Model and Shock Pulse Meter 43A) of different operating conditions of ball bearing the condition such as used the quantity of grease as different percentage (0%, 25%, 50%, 75%, 100%) and bad quality grease (burn grease) at different rpm at a fixed load (10kg) and compare the normalized shock pulse value (dB) at different operating conditions. This method uses a piezo-electric accelerometer superimposed electrically as well as mechanically to about 32 kHz of resonant frequency. The result will help in bearing related to quantity as well as quality condition based maintenance choosing the optimum conditions for detecting the lubricant problem in ball bearing