71 results about "Spatial stability" patented technology

The present invention provides computer-assisted methods and apparatus for identifying, selecting and characterizing biomolecules in a biological sample. A two-dimensional array is generated by separating biomolecules present in a complex mixture. A computer-readable profile is constructed representing the identity and relative abundance of a plurality of biomolecules detected by imaging the two dimensional array. Computer-mediated comparison of profiles from multiple samples permits automated identification of subsets of biomolecules that satisfy pre-ordained criteria. Identified biomolecules can be automatically isolated from the two dimensional array by a robotic device in accordance with computer-generated instructions. A supported gel suitable for electrophoresis is provided that is bonded to a solid support such that the gel has two-dimensional spatial stability and the solid support is substantially non-interfering with respect to detection of a label, such as a fluorescent label, associated with one or more biomolecules in the gel.

The present invention provides computer-assisted methods and apparatus for identifying, selecting and characterizing biomolecules in a biological sample. A two-dimensional array is generated by separating biomolecules present in a complex mixture. A computer-readable profile is constructed representing the identity and relative abundance of a plurality of biomolecules detected by imaging the two dimensional array. Computer-mediated comparison of profiles from multiple samples permits automated identification of subsets of biomolecules that satisfy pre-ordained criteria. Identified biomolecules can be automatically isolated from the two dimensional array by a robotic device in accordance with computer-generated instructions. A supported gel suitable for electrophoresis is provided that is bonded to a solid support such that the gel has two-dimensional spatial stability and the solid support is substantially non-interfering with respect to detection of a label, such as a fluorescent label, associated with one or more biomolecules in the gel.

A system for quantifying surface characteristics detects and quantifies characteristics of a surface of an object. For example, the system may quantify changes in surface roughness without contacting the specimen and without requiring precise temporal or spatial stability. The system may also quantify the evolution or progression of a particular characteristic of a surface, such as a defect, a slipband, a crack, a microcrack, a pit, a damage feature, corrosion, a contour change, an impact crater, a change in residual stress, and so on. The system may include an energy source, a detector section, and a process section. The energy source transmits a source signal to the surface of the object. The source signal is specularly reflected and / or scattered by the surface to yield one or more received signals. The detector section receives the received signal and, in turn, provides a detector signal indicative of the received signal. The processor applies an algorithm to the detector signal to quantify an evolution in one or more characteristics of the surface.

The invention belongs to the technical field of flexible pendulous accelerometers, and particularly relates to a permanent magnet torquer based on a silicon-based coil for an inertial navigation accelerometer. The permanent magnet torquer for the accelerometer provided by the invention comprises a yoke, a permanent magnet, a magnetic conducting sheet and the silicon-based coil, wherein the yoke islocated at the most bottom, the permanent magnet is fixed on the yoke, and the magnetic conducting sheet is fixed on an upper surface of the permanent magnet. A permanent magnet air gap is formed between the yoke and the magnetic conducting sheet, the silicon-based coil is located in the permanent magnet air gap, and when the permanent magnet torquer is at work, the silicon-based coil is fixed onan accelerometer pendulum sheet through a coil cushion block. According to the permanent magnet torquer provided by the invention, an enameled wire wound coil of the permanent magnet torquer of the accelerometer is replaced by the silicon-based coil, thereby effectively reducing the thermal stress between the accelerometer pendulum sheet and the coil of the permanent magnet torquer, and meanwhilereducing the viscoelasticity of the coil. The silicon-based coil has better spatial stability in a permanent magnet magnetic circuit and can significantly improve the scale factor stability of the accelerometer.

In a system and method for maintaining the spatial stability of a sound field a balance gain may be calculated for two or more microphone signals. The balance gain may be associated with a spatial image in the sound field. Signal values may be calculated for each of the microphone. The signal values may be signal estimates or signal gains calculated to improve a characteristic of the microphone signals. The differences between the signal values associated with each microphone signal may be limited although some difference between signal values may be allowable. One or more microphone signals are adjusted responsive to the two or more balance gains and the signal gains to maintain the spatial stability of the sound field. The adjustments of one or more microphone signals may include mixing of two or more microphone. The signal gains are applied to the two or more microphone signals.

In a system and method for maintaining the spatial stability of a sound field a balance gain may be calculated for two or more microphone signals. The balance gain may be associated with a spatial image in the sound field. Signal values may be calculated for each of the microphone. The signal values may be signal estimates or signal gains calculated to improve a characteristic of the microphone signals. The differences between the signal values associated with each microphone signal may be limited although some difference between signal values may be allowable. One or more microphone signals are adjusted responsive to the two or more balance gains and the signal gains to maintain the spatial stability of the sound field. The adjustments of one or more microphone signals may include mixing of two or more microphone. The signal gains are applied to the two or more microphone signals.

A film-formable polyimide copolymer, which comprises two kinds of tetracarboxylic acid dianhydride consisting of (A) pyromellitic acid dianhydride and (B) 3,3 ' ,4,4 ' -benzophenonetetracarboxylic acid dianhydride, and (C) 6-amino-2-(p-aminophenyl)benzimidazole has a heat-resistant dimensional stability without any deterioration of mechanical properties inherent in the polyimide resin when used as a film.

The invention discloses a space stability analysis method of an aircraft control system. The method comprises the following steps: 1), acquiring aerodynamic data; 2), solving aerodynamic derivatives on the basis of the aerodynamic data, and establishing a coupled aircraft motion equation between channels; 3),performing linearization analysis; 4),testing linearization analysis performance and improving results. Overall assessment and comprehensive design of aircraft flight tests can be achieved with the method, cause analysis and design improvement direction are provided for various instabilities of the aircraft under specific conditions, algorithm design work can also be promoted, various coupling flight states can be taken into account more comprehensively, and the method has obvious significance for accelerating the development progress of aircrafts.

In a system and method for maintaining the spatial stability of a sound field a balance gain may be calculated for two or more microphone signals. The balance gain may be associated with a spatial image in the sound field. Signal values may be calculated for each of the microphone. The signal values may be signal estimates or signal gains calculated to improve a characteristic of the microphone signals. The differences between the signal values associated with each microphone signal may be limited although some difference between signal values may be allowable. One or more microphone signals are adjusted responsive to the two or more balance gains and the signal gains to maintain the spatial stability of the sound field. The adjustments of one or more microphone signals may include mixing of two or more microphone. The signal gains are applied to the two or more microphone signals.

The invention discloses a high solid content and tinctorial strength carbon black aqueous pigment paste preparation method, which comprises: respectively weighing a dispersant, a wetting agent and deionized water according to a mass percentage ratio, pre-dispersing, adding a defoaming agent, defoaming, adding carbon black, placing into grinding equipment, and grinding, wherein a ratio of the nitrogen adsorption specific surface area to the DBP oil absorption value of the carbon black is 0.9-2.28, the adding amount of the dispersant is 20-40% of the mass of the carbon black, the adding amount of the wetting agent is 1-3% of the mass of the carbon black, the adding amount of the defoaming agent is 0.1-0.2% of the total amount of the solution, the rotation speed of the grinding motor of the grinding equipment is 1000-2000 r / min, the grinding time is 2-4 h, and the maximum particle size of the prepared carbon black aqueous pigment paste does not exceed 10 [mu]m. According to the present invention, the prepared carbon black water washing pigment paste has characteristics of small particle size distribution, increase of the space stability of the carbon black particles in the aqueous solution, high solid content, strong tinctorial strength, and good stability; and the preparation method has characteristics of simple operation, low cost, low consumption, and easy industrial production.

In a system and method for maintaining the spatial stability of a sound field a balance gain may be calculated for two or more microphone signals. The balance gain may be associated with a spatial image in the sound field. Signal values may be calculated for each of the microphone. The signal values may be signal estimates or signal gains calculated to improve a characteristic of the microphone signals. The differences between the signal values associated with each microphone signal may be limited although some difference between signal values may be allowable. One or more microphone signals are adjusted responsive to the two or more balance gains and the signal gains to maintain the spatial stability of the sound field. The adjustments of one or more microphone signals may include mixing of two or more microphone. The signal gains are applied to the two or more microphone signals.

In a system and method for maintaining the spatial stability of a sound field a balance gain may be calculated for two or more microphone signals. The balance gain may be associated with a spatial image in the sound field. Signal values may be calculated for each of the microphone. The signal values may be signal estimates or signal gains calculated to improve a characteristic of the microphone signals. The differences between the signal values associated with each microphone signal may be limited although some difference between signal values may be allowable. One or more microphone signals are adjusted responsive to the two or more balance gains and the signal gains to maintain the spatial stability of the sound field. The adjustments of one or more microphone signals may include mixing of two or more microphone. The signal gains are applied to the two or more microphone signals.