Deep brain stimulation (DBS) achieves therapeutic outcome through generation of electric fields (EF) in the vicinity of energized electrodes. Targeted brain regions are highly vascularized, and it remains unknown if DBS electric fields modulate blood-brain barrier (BBB) function, either through electroporation of individual endothelial cells or electro-permeation of barrier tight junctions. In ...

A nanocapacitor with ultra high capacitance (718 ± 0.2 pF) has been fabricated using electro-deposited Au nanowires manipulated between two Au microelectrodes by the dielectrophoresis technique. A high dc resistance value (∼100 M ) and nonlinear current–voltage characteristics indicate the formation of a dielectric interface between the nanowires. From frequency dependent conductivity, it is se...

The analysis of various parameters of metal oxides and the search of criteria, which could be used during material selection for solid-state gas sensor pplications, were the main objectives of this review. For these purposes the correlation between electro-physical (band gap, electroconductivity, ype of conductivity, oxygen diffusion), thermodynamic, surface, electronic, structural properties, ...

We report the properties of an all-solid-state electrochromic ~EC! device that can be switched over a useful range of optical transmissions with voltages below 1 V. This switching voltage is smaller than required by other solid-state EC devices reported to date. We attribute the lower-than-normal switching voltage to the use of a thermally evaporated MgF2 thin film as the lithium ion conducting...

Groundwater resources are increasingly being relied on in rural areas for income generation and food security. However, there is currently a lack of simple, yet accessible hydrogeological tools to monitor critical groundwater resources, both for quantity and quality. This is particularly true in developing countries underlain by fractured hard rock aquifers, with low productivities. Electrical ...

Kumar, Satish, M.S.E., Purdue University, December, 2007. Electro-Thermal Transport in Nanotube Based Composites for Macro-Electronic Applications. Major Professors: Muhammad A. Alam and Jayathi Y. Murthy. Dispersions of particles of different shapes and sizes in fluids or solids modify the transport properties of the underlying matrix. A remarkable enhancement in the electrical, thermal and ot...

This study investigates the structural and ionic conduction performance with involvement of ethylene carbonate (EC) in a bio-based polymer electrolytes (BBPEs) system, based on alginate doped glycolic acid (GA). The solution casting technique was used to successfully prepare BBPEs which were characterized various approaches evaluate their performance. It revealed that at ambient temperature, an...

Electro-thermal characteristics of strained-Si MOSFETs operating in high-current, high temperature regimes were investigated using device/circuit mixed mode simulations. The material parameters of strained-Si were calibrated for device simulations. Especially the phonon mean-free-path of strained-Si with high electric fields was estimated based on a full-band Monte Carlo device simulation. Desp...

The electro-spraying process can be regular and periodic, consisting of cyclical phases of initiation (meniscus, drop, and/or jet), pulsation, deformation and separation. This paper presents an experimental study on the repetition frequency of drop and/or jet ejection from the capillary end with various spraying modes during an electro-spraying process of deionized (DI) water. The influence of ...

The accurate monitoring of soil salinization plays a key role in the ecological security and sustainable agricultural development semiarid regions. objective this study was to achieve best estimation electrical conductivity variables from salt-affected soils south Mediterranean region using Sentinel-2 multispectral imagery. In order realize goal, test carried out (EC) data collected central Tun...