Patent application number | Description | Published |
20090020016 | SYSTEM FOR REMOVAL OF AIRBORNE CONTAMINANTS - The present invention relates to a system for removal of airborne contaminants in a confined space comprising a primary reaction chamber which chamber comprises at least one ultraviolet light tube for the generation of ozone, in which chamber air coming from the confined space is treated with a combination of UV radiation and ozone. It is an object of the invention to provide a system for removal of airborne pollutants in confined spaces, such as a livestock stable. A further object of the invention is to overcome the problem of dust accumulation on the ultraviolet light emitting lamp and production of nitrogen containing toxic gases. This can be achieved if the ultraviolet light tube is enclosed in an oblong ozone production chamber, which oblong production chamber in one end has a further inlet for an oxygen containing air stream coming exclusively from outside the confined space, where the ozone containing air stream can be mixed with contaminated air from the inlet to form a combined air stream, where the combined air stream is subjected to ultraviolet light transmitted through the wall of the oblong production chamber. Hereby is achieved an effective system for the removal of airborne contaminants including bacteria, virus, insects, malodour, dust particles, and noxious gases such as NH | 01-22-2009 |
20100108615 | METHOD AND AN APPARATUS FOR TREATMENT OF A SUBSTANCE HAVING ORGANIC CONTENT - The present invention relates to a method for treatment of substance having a content of organic material, e.g. manure from stables (1). The substance is initially separated into a first liquid phase and a first sludge phase, and an oxidation is performed, preferably by ozone, on at least one of the phases of the substance. From the first sedimentation process or flotation process the first sludge phase is separated, and a second sedimentation or flotation process is performed on the first liquid phase, preferably by addition of a polymer, and from the second sedimentation process or flotation process a second liquid phase is passed on to a further separation process, in which separation process a further oxidation, preferably by ozone, is performed on the second liquid phase. Preferably, the ozonation is substantially saturated. An important advantage is that malodour from the substance may be significantly reduced, possibly even eliminated. | 05-06-2010 |
Patent application number | Description | Published |
20100274510 | Method of Detecting System Function by Measuring Frequency Response - Methods of rapidly measuring the impedance spectrum of an energy storage device in-situ over a limited number of logarithmically distributed frequencies are described. An energy storage device is excited with a known input signal, and the response is measured to ascertain the impedance spectrum. The excitation signal is a limited time duration sum-of-sines consisting of a select number of frequencies. In one embodiment, magnitude and phase of each of frequency of interest within the sum-of-sines is identified when the selected frequencies and sample rate are logarithmic integer steps greater than two. This technique requires a measurement with a duration of one period of the lowest frequency. In another embodiment, where the selected frequencies are distributed in octave steps, the impedance spectrum can be determined using a captured time record that is reduced to a half-period of the lowest frequency. | 10-28-2010 |
20100332165 | Method of Estimating Pulse Response Using an Impedance Spectrum - Electrochemical Impedance Spectrum (EIS) data are used directly to predict the pulse performance of an energy storage device. The impedance spectrum of the EIS is obtained in-situ using pre-existing techniques. A simulation waveform is configured such that the period of the pulse is greater than or equal to the lowest frequency of the impedance measurement. If the pulse is assumed to be periodic for analysis purposes, the complex Fourier series coefficients can be obtained. The number of harmonic constituents are selected so as to appropriately resolve the response, but the maximum frequency should be less than or equal to the highest frequency of the impedance measurement. In some cases, the measured frequencies of the impedance spectrum do not match the corresponding harmonic components of the simulated pulse wave. This is resolved by estimating the impedance measurements at the desired frequencies using linear interpolation, cubic spline fits, or other comparable methods. Using a current pulse as an example, the Fourier coefficients of the pulse are multiplied by the impedance spectrum at the corresponding frequency to obtain the Fourier coefficients of the voltage response to the desired pulse. The Fourier coefficients of the response are then summed reassemble to obtain the overall time domain estimate of the voltage using the Fourier series analysis. Thus, the response of an energy storage device to an anticipated or desired pulse can be estimated using low-level, charge neutral impedance measurements combined with Fourier series analysis. | 12-30-2010 |
20110270559 | IN-SITU REAL-TIME ENERGY STORAGE DEVICE IMPEDANCE IDENTIFICATION - An impedance analysis system for characterizing an energy storage device (ESD) includes a signal vector assembler to generate a signal vector from a composition of one or more waveforms and a signal generator for generating a stimulus signal responsive to the signal vector. A signal measurement device measures a response signal indicative of a response of the ESD substantially simultaneously with when the stimulus signal is applied to the energy storage device. A load variation monitor monitors load variations on the energy storage device due to operational circuitry coupled thereto. An analyzer is operably coupled to the response signal and analyzes the response signal relative to the signal vector to determine an impedance of the energy storage device. | 11-03-2011 |
20120032688 | CROSSTALK COMPENSATION IN ANALYSIS OF ENERGY STORAGE DEVICES - Estimating impedance of energy storage devices includes generating input signals at various frequencies with a frequency step factor therebetween. An excitation time record (ETR) is generated to include a summation of the input signals and a deviation matrix of coefficients is generated relative to the excitation time record to determine crosstalk between the input signals. An energy storage device is stimulated with the ETR and simultaneously a response time record (RTR) is captured that is indicative of a response of the energy storage device to the ETR. The deviation matrix is applied to the RTR to determine an in-phase component and a quadrature component of an impedance of the energy storage device at each of the different frequencies with the crosstalk between the input signals substantially removed. This approach enables rapid impedance spectra measurements that can be completed within one period of the lowest frequency or less. | 02-09-2012 |
20120262186 | METHOD, SYSTEM AND COMPUTER-READABLE MEDIA FOR MEASURING IMPEDANCE OF AN ENERGY STORAGE DEVICE - Real-time battery impedance spectrum is acquired using a one-time record. Fast Summation Transformation (FST) is a parallel method of acquiring a real-time battery impedance spectrum using a one-time record that enables battery diagnostics. An excitation current to a battery is a sum of equal amplitude sine waves of frequencies that are octave harmonics spread over a range of interest. A sample frequency is also octave and harmonically related to all frequencies in the sum. A time profile of this sampled signal has a duration that is a few periods of the lowest frequency. A voltage response of the battery, average deleted, is an impedance of the battery in a time domain. Since the excitation frequencies are known and octave and harmonically related, a simple algorithm, FST, processes the time profile by rectifying relative to sine and cosine of each frequency. Another algorithm yields real and imaginary components for each frequency. | 10-18-2012 |
20140358462 | APPARATUSES AND METHODS FOR TESTING ELECTROCHEMICAL CELLS BY MEASURING FREQUENCY RESPONSE - Real-time battery impedance spectra are acquired by stimulating a battery or battery system with a signal generated as a sum of sine signals at related frequencies. An impedance measurement device can be used to interface between the battery system and a host computer for generating the signals. The impedance measurement device may be calibrated to adapt the response signal to more closely match other impedance measurement techniques. The impedance measurement device may be adapted to operate at mid-range voltages of about 50 volts and high-range voltages up to about 300 volts. | 12-04-2014 |
Patent application number | Description | Published |
20120161266 | METHODS AND SYSTEMS OF ISOLATING SEGMENTED RADIATION DETECTORS USING ALUMINA - Radiation detectors can be made of n-type or p-type silicon. All segmented detectors on p-type silicon and double-sided detectors on n-type silicon require an “inter-segment isolation” to separate the n-type strips from each other; an alumina layer for isolating the strip detectors is applied, and forms negative charges at the silicon interface with appropriate densities. When alumina dielectric is deposited on silicon, the negative interface charge acts like an effective p-stop or p-spray barrier because electrons are “pushed” away from the interface due to the negative interface charge. | 06-28-2012 |
20120193551 | APPARATUS SYSTEMS AND METHODS OF SENSING CHEMICAL BIO-CHEMICAL AND RADIOLOGICAL AGENTS USING ELECTROPHORETIC DISPLAYS - Caesium-137 irradiates electronic paper. An incoming gamma-ray from the Cs-137 interacts with a particle inside a micro-container by generating a recoil electron and/or a hole. Because the recoil electron physically leaves the particle, the particle is charged depending on the dose from the radiation source. And, the charge of the particles change, which results in a movement of the particles within the micro-container. After refreshing the electronic paper, a visible difference in the gray-scale can be seen. Thus, the visible difference in the gray-scale is an effect caused by the irradiation of the electronic paper, showing sensitivity to high energy radiation--thus, non-optimized electronic paper is sensitive to high energy radiation and can be used as a radiation dosimeter. In addition, electronic paper can be used for sensing chemical and bio-chemical agents, as well as detecting high energy radiation. | 08-02-2012 |
20130203239 | METHODS FOR SCRIBING OF SEMICONDUCTOR DEVICES WITH IMPROVED SIDEWALL PASSIVATION - A method of singulating semi-conductor devices in the close proximity to active structures by controlling interface charge of semiconductor device sidewalls is provided that includes forming a scribe on a surface of a semi-conductor devices, where the scribe is within 5 degrees of a crystal lattice direction of the semi-conductor device, cleaving the semiconductor device along the scribe, where the devices are separated, using a coating process to coat the sidewalls of the cleaved semiconductor device with a passivation material, where the passivation material is disposed to provide a fixed charge density at a semiconductor interface of the sidewalls, and where the fixed charge density interacts with charge carriers in the bulk of the material. | 08-08-2013 |
20140327099 | NANOMETER-SCALE LEVEL STRUCTURES AND FABRICATION METHOD FOR DIGITAL ETCHING OF NANOMETER-SCALE LEVEL STRUCTURES - A ramped etalon cavity structure and a method of fabricating same. A bi-layer stack is deposited on a substrate. The bi-layer stack includes a plurality of bi-layers. Each bi-layer of the plurality of bi-layers includes an etch stop layer and a bulk layer. A three dimensional photoresist structure is formed by using gray-tone lithography. The three dimensional photoresist is plasma etched into the bi-layer stack, thereby generating an etched bi-layer stack. The etched bi-layer stack is chemically etched with a first chemical etchant to generate a multiple-step structure on the substrate, wherein the first chemical etchant stops at the etch stop layer. | 11-06-2014 |
20160091703 | Method of Calibrating a Nanometrology Instrument - A method of calibrating a topography metrology instrument using a calibration reference, which includes a substrate and a plurality of bi-layer stacks. Each bi-layer stack includes a plurality of bi-layer steps. At least one bi-layer step of the plurality of bi-layer steps includes two materials. The at least one bi-layer step of the plurality of bi-layer steps includes an etch stop layer and a bulk layer. The calibration reference includes a calibration reference step profile includes a plurality of predetermined bi-layer stack heights. The calibration reference step profile and the predetermined bi-layer stack heights are measured using a topography metrology instrument. The topography metrology instrument is calibrated based on the measured calibration reference step profile and the measured bi-layer stack heights. | 03-31-2016 |