Lead sulfide ~PbS! thin films were deposited from a chemical bath onto SiO2 /Si ~n-type! substrates. Pseudo-metal–oxide–semiconductor devices were obtained by evaporating source and drain gold electrodes on a PbS surface and aluminum gate electrode on a Si substrate. Field-effect-assisted photoconductivity in the PbS layer was investigated at room temperature, in the 800– 2700-nm-wavelength dom...

In the direct current mode (DC), widely used in electroflocculation (EC), the formation of an impermeable oxide layer on the cathode causes the declining of the efficiency of this process. This disadvantage has been reduced by adopting alternating current (AC). In this study, the effects of AC and DC on operational parameters such as the removal of oils and greases (O&G), color and turbidity fr...

In this contribution, the amounts of Ni (nickel) and Al (aluminum) in tilapias (Oreochromis niloticus) were determined using square wave voltammetry (SWV) with glassy carbon working microelectrode with a mercury thin film, platinum counter electrode, and Ag/AgCl reference electrode. Ni was studied through the formation of the dimethylglyoxime-Ni (Ni-DMG) complex, while Al was studied through th...

iii ACKNOWLEDGEMENTS First and foremost, I need to thank my parents and my sister for always encouraging me throughout my long study. I would like to thank my advisor, Dr. Bruno Frazier, for providing me the opportunity to study under his guidance and encouraging me with patience throughout the years. I would also like to thank Dr. for valuable discussion and help regarding patch clamping and p...

Deterioration of reinforced concrete members and their repair methods have been reported in various concrete published reports. Electrodeposition method is one of these repair methods for repairing deteriorated concrete members using an electrochemical mechanism. The purposes of the electrodeposition method are to fill cracks in concrete and to coat the concrete surface by electrodeposits of ch...

Aqueous rechargeable aluminum-ion batteries promise a safe, sustainable and affordable energy storage solution. In the aqueous system, water plays critical role in enabling high fire safety fast ion transport to store intermittent renewables. However, could also easily react with electrodes, leading various parasitic side reactions and, ultimately, catastrophic failure of cell. This review summ...

Mechanical and electrical losses induced by an electrode material greatly influence the performance of bulk acoustic wave (BAW) resonators. Graphene as a conducting and virtually massless 2D material is a suitable candidate as an alternative electrode material for BAW resonators which reduces electrode induced mechanical losses. In this publication we show that graphene acts as an active top el...

The experiments were carried out in an electro coagulation reactor with aluminum as sacrificial electrodes. The influence of electrolysis time, current density, pH, NaCl concentration, rotational speed of the stirrer and electrode distance on reduction of color, COD and BOD were studied in detail. From the experimental results, 25mA/cm2 current density, pH of 7, 1 g/l NaCl, 100 rpm, 28 ◦C tempe...

The aim of this paper is to indicate the Electrostatic Treatment – EST (capacitive effect) as a cancer therapy and the studies that were be done by our research group using Electromagnetic Field Theory to explain the effects over the tumors. EST is a original, not expensive and non invasive cancer therapy which consists in to apply on a tumor continuos (dc) voltage (up to 3,000 V) across two el...