A mathematical model to calculate the volume specific three-phase boundary length in the porous composite electrodes of solid-oxide fuel cell s presented. The model is exclusively based on geometrical considerations accounting for porosity, particle diameter, particle size distribution, nd solids phase distribution. Results are presented for uniform particle size distribution as well as for non...

OBJECTIVE This study was performed to evaluate the insertional properties of two cochlear implant electrodes recently developed by Advanced Bionics Corporation. STUDY DESIGN Anatomic study using human cadaveric temporal bones. METHODS The electrode prototypes we tested are the Thin Lateral and Helix II arrays, which incorporate features designed to minimize insertional trauma. A total of ei...

An original 3D stochastic geometrical model has been developed to simulate the microstructural evolution of porous solid-oxide cell electrodes made yttria-stabilized zirconia and nickel. The change induced by Ni agglomeration more specifically simulated. is based on random sets algorithms for solving linear assignment problem related time one component in microstructure. possibility generate re...

A difficult pattern recognition problem is to recognize objects despite distortions in position, orientation and scale in cluttered backgrounds. A system capable of detecting target objects despite any kind of geometrical distortion has many potential applications since it will be able to detect target objects when the orientation and position of the target or camera is unknown. In this work we...

This work describes the adaptive use of conventional stainless steel pins-used in unmodified form or coated with carbon paste-as working, counter, and quasi-reference electrodes in electrochemical devices fabricated using cotton thread or embossed omniphobic R(F) paper to contain the electrolyte and sample. For some applications, these pin electrodes may be easier to modify and use than printed...

Introduction Patient set-up optimization is required in radiotherapy to fill the accuracy gap between personalized treatment planning and uncertainties in the irradiation set-up. In this study, we aimed to develop a new method based on neural network to estimate patient geometrical setup using 4-dimensional (4D) XCAT anthropomorphic phantom. Materials and Methods To access 4D modeling of motion...

Fabrication and organosilane-functionalization and characterization of nanostructured ITO electrodes are reported. Nanostructured ITO electrodes were obtained by electron beam evaporation, and a subsequent annealing treatment was selectively performed to modify their crystalline state. An increase in geometrical surface area in comparison with thin-film electrodes area was observed by atomic fo...

Radiofrequency ablation has become a first-line approach for curative therapy of many cardiac arrhythmias. Various existing catheter designs provide high spatial resolution to identify the best spot for performing ablation and to assess lesion formation. However, creation of transmural and nonconducting ablation lesions requires usage of catheters with larger electrodes and improved thermal con...

 Physiological monitoring outside clinical environments and medical offices can contribute to people’s wellness, particularly if that monitoring does not disturb their daily activities, and can also help in life-style improvement. We propose a novel non-conscious method to monitor the heart rate which is based on detecting blood volume changes in the thigh through electrical impedance plethysm...