A three-dimensional mathematical model is presented to describe volume changes in porous electrodes occurring during operation. Material conservation equations are used to derive governing relationships between electrode dimensions and porosity for deposition/precipitation, intercalation, and ionomer-based electrodes. By introducing a parameter, called the swelling coefficient, the relative mag...

PURPOSE The authors' purpose is to model the case of an implantable pulse generator (IPG) and the electrode of an active implantable medical device using lumped circuit elements in order to analyze their effect on radio frequency induced tissue heating problem during a magnetic resonance imaging (MRI) examination. METHODS In this study, IPG case and electrode are modeled with a voltage source...

Relation between powder resistivity and humidity is typically measured in several steps. When a standard resistivity cell is used, this procedure may take weeks. We present a method for measuring powder resistivity as a function of moisture using a one-step process. System consisted of two parallel electrodes immersed in powder. High voltage electrode was a uniform square but the ground electro...

Electrochemotherapy is a novel approach in chemotherapeutic drug delivery into tumours. Short intense direct current electric pulses are applied to tumour tissue causing electropermeabilisation thus enabling entrance of chemotherapeutic drugs into cells which otherwise do not easily penetrate. A three dimensional anatomically based finite element model of the mouse with injected subcutaneous so...

We recorded the vector magnetogastrogram (MGG) due to gastric electrical activity (GEA) in normal rabbits using a Superconducting QUantum Interference Device (SQUID) magnetometer and measured the degree of correlation of the MGG with 24 channels of serosal electrodes. The vector magnetometer allows us to non-invasively record three orthogonal magnetic field components and project the recorded m...

In this article, axisymmetric buckling behavior of piezoelectric fiber reinforced polymeric composite (PFRPC) annular plate subjected to electro-thermo-mechanical field is presented utilizing principle of minimum potential energy. Boron-nitride nanotubes (BNNTs) are used as fibers. Full coupling between electrical, mechanical and thermal fields are considered according to a representative volum...

The paper presents the results of factor analysis multi-electrode geoelectric data measured in area Surány aquifer. 9-variable dataset on first profile was examined by using 2, 3, 4 and 5 factors. calculations show that Factor 1 carries effects IP (Induced Polarization), while 2 shows effect apparent resistivity (Rho) with greatest weight. In weight current (In) is largest. Based all this, it c...

Dielectrophoresis (DEP) is the phenomenon by which polarized particles in a non-uniform electric field undergo translational motion, and can be used to direct the motion of microparticles in a surface marker-independent manner. Traditionally, DEP devices include planar metallic electrodes patterned in the sample channel. This approach can be expensive and requires a specialized cleanroom enviro...

An electric field parallel to electrode arrays, which can be realized by switching DC electric fields, allows the electrophoretic levitation and focusing of negatively charged particles at the height of the anodes in the electrode arrays. Electric field calculations predict that charged particles will migrate parallel to the electrode array. The trajectories of particles well reflect the calcul...