Dalhousie University Patent applications |
Patent application number | Title | Published |
20150051383 | Filtration and Extraction Assembly - Among other things, in general, a two-stage filtration and extraction assembly is described, as well as methods of use thereof. | 02-19-2015 |
20140294646 | Toroidal Engine - A toroidal engine that can be powered by a fuel/air mixture or by a compressed gas source. The toroidal engine uses one-way bearings to transfer torque generated in a toroidal chamber directly to a drive shaft. Pairs of pistons are mounted on two crank assemblies, which are concentric with the drive shaft. One-way bearings allow the crank assemblies to turn, one at a time, in one direction only. The crank assemblies are directly coupled to the drive shaft, which eliminates the need for complex gear and linkage arrangements. A system can be used with the toroidal engine to alternately stop the crank assemblies at a pre-determined position and to time the ignition of the engine. | 10-02-2014 |
20140248313 | COMBINATION ADJUVANT FORMULATION - Methods and compositions for enhancing an immune response to a selected antigen are described. The methods are useful for the treatment and prevention of microbial infections, such as infections caused by bacteria, viruses, fungi and parasites. The methods and compositions include host defense peptides, polyphosphazenes and immunostimulatory sequences to enhance the immune response to a coadministered antigen. | 09-04-2014 |
20140163395 | Computer-Aided Localization of Site of Origin of Cardiac Activation - A method for quantifying, during pacemapping, a comparison of a BSPM of interest to a pace site BSPM. The method may include receiving at a computing device a plurality of ECG signals from an acquisition system. The pace site BSPM may be calculated using the plurality of ECG signals. The BSPM of interest may be compared to the pace site BSPM, by: retrieving the BSPM of interest from memory accessible by the computing device; and, calculating one or more comparison metrics for the BSPM of interest as compared to the pace site BSPM. An indication of similarity between the BSPM of interest and the pace site BSPM based on the comparison metric calculated may be displayed on a user interface in communication with the computing device. | 06-12-2014 |
20140031603 | METHODS AND APPARATUS FOR IMAGING IN CONJUNCTION WITH RADIOTHERAPY - Methods and apparatus for planning imaging include planning imaging in conjunction with planning a radiation treatment. A radiation dose due to planned imaging may be calculated and used in optimizing a plan for delivering therapeutic radiation. Imaging and treatment may be performed using radiation beams having different characteristics. In some embodiments an imaging beam is generated using a low-Z target and a therapy beam is generated using a high-Z target. A radiation treatment planning system may include data characterizing both the imaging beam and the treatment beam. | 01-30-2014 |
20130295020 | Radiopaque Embolic Particles - A radiopaque particulate material one or more of SiO | 11-07-2013 |
20130253185 | NOVEL CATALYSTS - The present invention provides novel compounds and ligands that are useful in transition metal catalyzed cross-coupling reactions. For example, the compounds and ligands of the present invention are useful in palladium or gold catalyzed cross-coupling reactions. | 09-26-2013 |
20130165396 | Apple Skin Extracts for Treating Cardiovascular Disease - Pharmaceutical and nutraceutical compositions and methods for treating cardiovascular disease, comprising apple skin extracts which can reduce cholesterol levels and inhibit low density lipoprotein (LDL) oxidation in a subject, are provided. | 06-27-2013 |
20130133663 | Respiratory Device Filter - A respiratory device filter ( | 05-30-2013 |
20130065843 | Phenolic Compositions Derived From Apple Skin And Uses Thereof - Described herein are phenolic compositions derived from apple skins. In particular, described herein are flavonoid-rich fractions derived from apple skin extract. The compositions are useful in the prevention and treatment of conditions associated with oxidative stress and/or inflammation, including certain neurodegenerative diseases. Methods of producing the compositions are also described. | 03-14-2013 |
20120296215 | Ultrasound Imaging System Using Beamforming Techniques for Phase Coherence Grating Lobe Suppression - High-frequency ultrasound imaging can be performed with greater quality and suppressed grating lobes by using methods and systems for effectively reducing the temporal length of transmit grating lobe signals in received ultrasound echoes. Systems and methods are provided for improved high-frequency ultrasound imaging. In various aspects, the method of shortening the time domain of grating lobe signals comprises splitting an array of N transmit elements into K sub-apertures. In further aspects, the grating lobes are suppressed by performing signal processing of the shortened grating lobe signals. In certain aspects, the signal processing method comprises weighting the samples by a calculated phase coherence factor. | 11-22-2012 |
20120088957 | SUBCUTANEOUS PIEZOELECTRIC BONE CONDUCTION HEARING AID ACTUATOR AND SYSTEM - An implantable bone-conduction hearing actuator based on a piezoelectric element, such as a unimorph or bimorph cantilever bender, is described. Unlike other implantable bone conduction hearing actuators, the device is subcutaneous and once implanted is entirely invisible. The device excites bending in bone through a local bending moment rather than the application of a point force as with conventional bone-anchored hearing aids. | 04-12-2012 |
20120016243 | HIGH-FREQUENCY ULTRASOUND IMAGING SYSTEM - A high frequency ultrasound analog beamformer comprises a linear array of surface acoustic wave (SAW) devices formed on a single crystal piezoelectric substrate, such as a PMN-PT single crystal piezoelectric substrate. Each SAW device comprises ultrasound input and output electrode structures separated by a variable delay structure. The beamformer further comprises a delay controller operably connected to each variable delay structure to control the delay of each SAW device to dynamically focus signals received at each input electrode. | 01-19-2012 |
20110185998 | TOROIDAL ENGINE - A toroidal engine that can be powered by a fuel/air mixture or by a compressed gas source. The toroidal engine uses one-way bearings to transfer torque generated in a toroidal chamber directly to a drive shaft. Pairs of pistons are mounted on two crank assemblies, which are concentric with the drive shaft. One-way bearings allow the crank assemblies to turn, one at a time, in one direction only. The crank assemblies are directly coupled to the drive shaft, which eliminates the need for complex gear and linkage arrangements. A system can be used with the toroidal engine to alternately stop the crank assemblies at a pre-determined position and to time the ignition of the engine. | 08-04-2011 |
20100285053 | Immunosuppressive Extract Of Cordyceps Sinensis And Uses Thereof - The present invention described herein relates to aqueous extracts of | 11-11-2010 |
20100226449 | Method and System for Reducing the Peak-to-Average Power Ratio - This invention provides a method and system for reducing the PAPR. The method involves (i) intentionally inserting error(s) into the time or frequency domain and (ii) employing various bit mapping schemes to provide a significant reduction in the PAPR. An embodiment of the error insertion of the method involves intentionally inserting symbol error(s) into the quadrature amplitude modulation (QAM) symbol stream before applying discrete Fourier transform in OFDM. The method trades off the coding gain of the system for the PAPR reduction of the OFDM signals and does not require transmission of side information. It further has reduced complexity and improved bit error rate (BER) performance when used with a typical non-linear amplifier as compared to alternative existing methods (Gray coding, tone injection, tone reservation, etc.) | 09-09-2010 |
20100089161 | Vibration Based Damage Detection System - The present invention provides methods of assessing damage on a joint that includes energizing the joint, detecting the vibration of the joint using one or more signal generating sensors, processing the signal(s), and applying a damage index to the processed signal(s), wherein the damage index incorporates a processed control signal generated by a sensor(s) at or near the joint when the joint was healthy, i.e., in a substantially undamaged state. Another aspect of the present invention provides a pipeline that includes at least two pipe segments, at least one joint connecting the two pipe segments, and at least one signal generating sensor affixed to the pipeline that is capable of detecting vibration at or near the joint, at least one signal processor that is capable of EMD processing the signal, and an output device (e.g., computer monitor, LED display, a light bulb, an electronic alarm, or other sound or light generating device). | 04-15-2010 |