Villanova University Patent applications |
Patent application number | Title | Published |
20130088204 | METHOD AND SYSTEM FOR MAGNETIC FIELD PROBING FOR SEALED-ACID BATTERY DIAGNOSIS - A system and method for determining the health of a battery. A primary coil may be positioned along a first portion of a battery and a secondary coil may be positioned along a second portion of the battery. The primary coil may then be excited with a signal, and an electromagnetic field induced in the secondary coil by the excited primary coil may be measured. A state of health of the battery may thus correlate to the measured electromagnetic field during operation of the battery. This state of health may be determined as a function of electrolyte stratification, current profile, electrode structure, electrode surface degradation, and combinations thereof. | 04-11-2013 |
20110155207 | SOLAR CELLS AND METHOD OF MAKING SOLAR CELLS - A multi junction photovoltaic cell includes at least two P-N junctions electrically connected to each other in series. Each P-N junction includes a P-type absorber layer and a N-type emitter layer, each P-type absorber layer including a plurality of alternating thin film layers of zinc telluride and lead telluride, wherein zinc telluride and lead telluride have respective bandgaps when in bulk thickness and the effective bandgap of each P-type absorber layer is between the respective bandgaps, The effective bandgap of at least one P-type absorber layer is different from that of at least one other P-type absorber layer. | 06-30-2011 |
20100269952 | PROCESS AND APPARATUS FOR FILLING MICROSTRUCTURED FIBERS VIA CONVECTION BASED PRESSURE DRIVEN TECHNIQUE - A delivery system for filling a microstructured or nanostructured optical fiber (MOF/NOF) includes a MOF/NOF having first and second ends. The first end of the MOF/NOF is disposed in a first chamber configured to have a first pressure, and the second end of the MOF/NOF is disposed in a second chamber configured to have a second pressure that is less than the first pressure. A material source introduces a material into the first chamber. A light source is oriented to emit light into one of the ends of the MOF/NOF. An optical detection system for monitoring filling of the MOF/NOF detects the light emitted by the light source from the other of the ends of the MOF/NOF. | 10-28-2010 |
20100033181 | Levitating MEMS Resonator for Magnetic Resonance Force Microscopy - A self-stabilized, levitating MEMS (Micro Electro-Mechanical Systems) resonator is provided for detection of magnetic resonance spectra of electrons and nuclei in magnetic resonance force microscopy (MRFM) measurements. The present MRFM system includes a levitating micro-disk having electrically-controlled force sensitivity. To achieve imaging on the scale of a single nuclear spin, the force sensitivity of the measurement must be on the order of 1 aN (atto-Newton) or less. For about a 1 aN force to produce deflections comparable to an angstrom for interferometer detection, the stiffness or spring constant (k) of the resonator will typically be less than 1 μN/m (micro-Newtons per meter). Since the resonator is to be driven with an oscillating force at its resonance, there is a quality-factor (Q) enhancement of the amplitude of the motion. As a result, the k/Q ratio is preferably less than 1×10 | 02-11-2010 |