The di€erential capacitance of a polycrystalline Ag electrode was measured in a NaClO4 electrolyte containing Na2S2O3 at concentrations ranging from 0.1 to 20mM and at electrode potentials ranging from )0.9 to )0.3V vs SCE. The di€erential capacitance measurements were analysed to obtain the surface coverage of speci®cally adsorbed thiosulfate (S2O 2ÿ 3 ) as a function of both electrode potenti...

the transformation of biochemical information into a physical or chemical signal is the basic idea behind a biosensor. the efficient detection of charged biomolecules by biosensor with appropriate device has caught tremendous research interest in the present decade. the present work is related to the simulation study of the performance of a functionalized surface of a biologically sensitive fie...

BACKGROUND We developed and evaluated a novel system for guiding radiofrequency catheter ablation therapy of ventricular tachycardia. This guidance system employs an inverse solution guidance algorithm (ISGA) using a single equivalent moving dipole (SEMD) localization method. The method and system were evaluated in both a saline tank phantom model and in vivo animal (swine) experiments. METHO...

A near-infrared sensitive hybrid photovoltaic system between PbS nanocrystals (PbS-NCs) and C(60) is demonstrated. Up to 0.44% power conversion efficiency is obtained under AM1.5G with a short circuit current density (J(sc)) of 5 mA cm(-2) when the PbS-NC layer is treated in anhydrous methanol. The observed J(sc) is found be approximately one-third of the maximum expected from this hybrid confi...

Maxwell Stress Tensor (MST) method is investigated in this study to quantify the degree of approximation made with the point–dipole method in respect to dielectrophoresis (DEP) in micro–devices. Latex particles and biological cells immersed in aqueous buffers of various conductivities are considered. The two methods (point–dipole and MST full approaches) are compared using analytical dipolar so...

Some multi-electrode resistivity studies were performed within and outside the landfill as part of the environmental project. The apparent-resistivity data were collected using a dipole-dipole survey with 21 electrodes (spaced a=5m with n= 1, ...,18), to give a total line-length of 100 meters. Data inversion was carried out using the DCINV2D program. All the subsequent inversions had a RMS less...

effects of temperature and percentage of organic modifier were studied on retention and selectivity in rp-hplc using solvation parameter model. the system constants were determined by multiple linear regression analysis from experimental values in the retention factor for a group of different solutes with known descriptors by computer using the program spss/pc. the experimental results showed t...