229results about How to "Reduce sensitivity" patented technology

If a zoom magnification ratio of the image is changed after shooting, it is impossible to match brightness, amount of noise, exposure time between angles of view due to difference in light gathering ability of a camera. The number of one or more image-capturing units (130 to 161) having a first angle of view, among the plurality of image-capturing units, is made larger than the number of one or more image-capturing units (101 to 105) having a wider angle of view than the first angle of view. In addition, the amount of light being received in total by one or more image-capturing units (130 to 161) having a first angle of view is made approximately equal to the amount of light being received in total by one or more image-capturing units (101 to 105) having a second angle of view.

Architectures are provided for selectively incoupling one or more streams of light from a multiplexed light stream into a waveguide. The multiplexed light stream can have light with different characteristics (e.g., different wavelengths and/or different polarizations). The waveguide can comprise in-coupling elements that can selectively couple one or more streams of light from the multiplexed light stream into the waveguide while transmitting one or more other streams of light from the multiplexed light stream.

The present invention relates to oral care compositions which provide a means to deliver actives which are useful in the prevention, treatment and/or management of dental and related tissue conditions, including dental caries, dental cavities, microbial flora, tartar, periodontal and related gum disease. In addition, the present invention may be used in the healthy maintenance of teeth and gums. Further aspects of the present invention are related to the present compositions being useful to whiten teeth and otherwise favorably impact the cosmetic appeal of the teeth and gums of a subject or patient. A further aspect of the present invention is directed to the inclusion of effective amounts of colostrum in dental care compositions for the unexpectedly high efficacy such formulations provide in inhibiting, reducing or otherwise preventing microbial growth, dental caries, plaque, cavities and gum disease, including periodontal disease. The use of colustrum with other enzymes as otherwise described herein represents a particularly preferred embodiment for use in the present invention because of the unexpected antimicrobial activity exhibited by the enzyme combination.

A method of modifying the force of contraction of at least a portion of a heart chamber, including providing a subject having a heart, comprising at least a portion having an activation, and applying a non-excitatory electric field having a given duration, at a delay after the activation, to the portion, which causes the force of contraction to be increased by a least 5%.

The present invention provides a simple, robust, and universal position observer for use with sensorless synchronous machines. The observer may be implemented using an equivalent EMF model of a synchronous machine or, alternately, using a sliding mode controller based on the equivalent EMF model of the synchronous machine. The observer may be used on any type of synchronous machine, including salient or non-salient pole machines such as a permanent magnet, interior permanent magnet, wound rotor, or reluctance synchronous machine. The observer provides low sensitivity to parameter variations and disturbances or transient conditions in the machine. In addition, no knowledge of speed is required as an input to the observer and an estimated position may be calculated using a subset of the machine parameters.

There is provided a fall detection system for use in detecting falls by a user, the fall detection system comprising a processing unit configured to determine context information about the user and/or the environment in which the user is located, and to increase the sensitivity of a fall detection algorithm used to detect falls by a user in the event that the determined context information indicates that the user is or may be at an increased risk of falling, the increase in sensitivity occurring while the increased risk of falling is indicated by the determined context information.

In a method for fracturing or mask data preparation or mask process correction for charged particle beam lithography, a plurality of shots are determined that will form a pattern on a surface, where shots are determined so as to reduce sensitivity of the resulting pattern to changes in beam blur (β_f). At least some shots in the plurality of shots overlap other shots. In some embodiments, β_f is reduced by controlling the amount of shot overlap in the plurality of shots, either during initial shot determination, or in a post-processing step. The reduced sensitivity to β_f expands the process window for the charged particle beam lithography process.

The invention relates to an ocean deepwater water-based constant-rheology drilling fluid and belongs to the technical field of petroleum drilling engineering chemical agents. The drilling fluid is characterized by comprising the following components in percentage by weight: 2-4% of clay, 3-8% of flow control agent, 2-5% of inhibitor, 1-3% of fluid loss additive, 2-6% of lubricant, 0.1-0.6% of pH regulator, 0-40% of weighting agent and the balance of water. The drilling fluid provided by the invention can be used for solving the problems that the viscosity of the conventional drilling fluid increases at low temperature and decreases at high temperature and reducing the sensitivity of viscosity change along with the temperature of the whole drilling fluid system, thus realizing a constant-rheology state; and the drilling fluid has strong inhibition and lubrication properties and is an effective deepwater low-temperature water-based constant-rheology drilling fluid system.

Systems for optical wavefront sensing and control based on a phase contrast Fourier domain filtering technique. Optically or electronically controlled phase spatial light modulators (SLM) are used as the Fourier domain filter. A direct adaptive-optic feedback system using the optical wavefront sensing systems. A differential Zernike filter is also disclosed.

Embodiments of the present invention comprise systems and methods for noninvasion measurements of physiological properties of tissues. The system comprises a light emitter, an optical detector, a mechanical sensor and a processor. The light emitter is capable of emitting light of at least two different wavelengths and comprises at least one light source. The processor is capable of evaluating physiological properties of the tissues from measurements of the optical and the mechanical sensor. More precisely, the processor is capable of evaluating physiological properties of venous blood by using data measured by the mechanical sensor and the optical detector. For example, the oxygenation of venous blood can be measured. Furthermore, the systems can optionally comprise a light emitter which emits three wavelengths and/or the light emitter and the optical detector are arranged in reflection geometry and are located at a distance of at most 10 mm from each other.

The present invention relates to a metal cutting insert that is primarily intended for turning operations. The cutting insert comprises an upper surface, a lower surface substantially parallel with the upper surface, and at least three side surfaces extending between the upper and lower surfaces. A transition between two adjacent side surfaces forms a rounded nose radius surface at a cutting insert corner. The cutting insert comprises a peripheral land bridging the upper and side surfaces at least at the corner portion at a chamfer angle. An intersection of the land and the nose radius surface forms a nose cutting edge. The nose cutting edge is defined by at least one radius. The cutting corner comprises at least one curved wiper edge. The chamfer angle in a cross-section at the nose cutting edge is smaller than the chamfer angle in a cross-section a distance away from the nose cutting edge. The chamfer angle has a minimum at a bisector of the corner portion.

Complementary LDMOS and MOS structures and vertical PNP transistors capable of withstanding a relatively high voltage may be realized in a mixed-technology integrated circuit of the so-called "smart power" type, by forming a phosphorus doped n-region of a similar diffusion profile, respectively in: The drain zone of the n-channel LDMOS transistors, in the body zone of the p-channel LDMOS transistors forming first CMOS structures; in the drain zone of n-channel MOS transistors belonging to second CMOS structures and in a base region near the emitter region of isolated collector, vertical PNP transistors, thus simultaneously achieving the result of increasing the voltage withstanding ability of all these monolithically integrated structures. The complementary LDMOS structures may be used either as power structures having a reduced conduction resistance or may be used for realizing CMOS stages capable of operating at a relatively high voltage (of about 20V) thus permitting a direct interfacing with VDMOS power devices without requiring any "level shifting" stages. The whole integrated circuit has less interfacing problems and improved electrical and reliability characteristics.

The invention relates to magnesium-oxygen cement slurry used for reservoir water plugging, leak plugging and temporary-closure plugging in an oil and gas well and a preparation method thereof. The cement slurry contains the following components in parts by weight: 100 parts of active magnesium oxide, 50-105 parts of water, 30-100 parts of water-soluble blending agent, 0.5-10 parts of water-soluble borate, 1-8 parts of carbohydrate retarding agent, 0-400 parts of acid-soluble hard filling material, 1-5 parts of fluid loss agent, 0-5 parts of foaming agent and 0-2.5 parts of foam stabilizing agent, wherein the active magnesium oxide is obtained through roasting magnesium carbonate or magnesium oxide at high temperature; the water-soluble blending agent is a mixture which is one or over two of sodium pentaborate, sodium tetraborate and disodium octaborate tetrahydrate; the carbohydrate retarding agent is a mixture which is one or over two of sucrose, lactose and glucose; and the acid-soluble hard filling material is calcium carbonate or magnesium carbonate. According to the invention, a magnesium-oxide cement stone is removed from a stratum layer by using an acidizing way; the damageto the stratum layer is low; and the wide practical value is achieved.

The invention discloses a hard road asphalt composition and a preparation method thereof. The composition comprises uintahite, a softener, a chemical modifying agent and basic asphalt of high asphaltene content with penetration number of less than 35 1/10mm. The preparation method comprises the following steps: the uintahite, the softener and the basic asphalt are added into a reactor, sheared and stirred at the temperature of 150-170 DEG C, and then chemical modifying agent is added into the reactor, sheared and stirred so as to obtain the hard road asphalt. The hard road asphalt composition has excellent high temperature stability, antifatigue performance and adhesiveness of aggregate, moderate low temperature performance and can be used for surfacing the road surface of important traffic roads through which heavy traffic and axle weight vehicles pass so as to lighten the occurrence of common road surface diseases such as tracks, upheaval, and fatigue cracking of road, etc.

A wide viewing angle optical lens assembly comprises, in order from an object side to an image side, a first lens element with negative refractive power having a convex object-side surface and a concave image-side surface, a second lens element with positive refractive power having a convex object-side surface, a third lens element with positive refractive power having a convex image-side surface. By adjusting the relationship among the above-mentioned lens elements, the wide viewing angle optical lens assembly can effectively reduce its size, obtain greater angle of view as well as superior imaging quality.

A portable electronic device includes communication circuitry operative to establish a communication over a communication network, an input device for entering at least one user input into the electronic device, and at least one contactless sensor. The contactless sensor is operative to detect at least one of motion or position of the input device relative to the electronic device.

A toric contact lens utilizes concentric annual rings, a continually varying lens design as a function of distance from the lens center or any other function to create a range of cylinder axis zones on a single lens.

For realizing high speed one time programmable memory, bit line is multi-divided for reducing capacitance, so that the bit line is quickly charged when reading and multi-stage sense amps are used for connecting divided bit line, wherein the multi-stage sense amps are composed of a first dynamic circuit serving as a local sense amp for reading the memory cell, a second dynamic circuit serving as a segment sense amp for reading the local sense amp, and a tri-state inverter serving as an amplify circuit of a global sense amp for reading the segment sense amp. When reading data, a voltage difference in the bit line is converted to a time difference for differentiating high data (programmed) and low data (unprogrammed) by the multi-stage sense amps. And buffered data path is connected to the global sense amp for realizing fast data transfer. Additionally, alternative circuits and memory cell structures are described.

In a laminated piezoelectric body, a laminated piezoelectric body manufacturing method, an ultrasound transducer, and an ultrasound diagnostic device according to the present invention, a plurality of mutually laminated piezoelectric bodies are electrically connected in parallel to each other, and each of the plurality of piezoelectric bodies arranges an orientation of residual polarization or a crystal axis that is related to an electrical displacement or a sign of an electric field due to a direct piezoelectric effect in a direction which reduces sensitivity in a first resonance mode and increases sensitivity in a second resonance mode of a higher order than the first resonance mode with respect to an axis of a first-level piezoelectric body on a fixed end-side.

The invention relates to a semiconductor power device with a high-K medium tank, belonging to the technical field of power semiconductor devices. The device comprises a semiconductor substrate, a semiconductor drift region on the semiconductor substrate, and an active area and a trench gate structure on the semiconductor drift region, wherein the semiconductor drift region comprises a first semiconductor area and a second semiconductor area having the same conduction type; the dosage concentration of the second semiconductor area is higher than that of the first semiconductor area, and the width of the second semiconductor area is smaller than that of the first semiconductor area; a high-K medium tank is arranged below the trench gate structure; two ends of the high-K medium tank are contacted with a conductive material of the trench gate structure and the semiconductor substrate respectively, and two sides of the high-K medium tank are contacted with the second semiconductor area; and the drift region consisting of the first semiconductor area and the second semiconductor area are symmetrically distributed at two sides of the high-K medium tank. The semiconductor power device has the advantages of being high in voltage resistance, small in on resistance, low in power consumption, large in process tolerance, simple in manufacturing process and low in cost and the like, and is suitable for being as the power semiconductor device with low power consumption.

Methods and circuits for minimizing or eliminating the effect of trimming circuits in a voltage generating circuit are provided. In general, the effects of channel resistance of switches of the trimming circuit are reduced by utilizing switches in series with the output, rather than in parallel with resistors, as in conventional trimming circuits. Because the switches are not in parallel with the resistors, when the switches are turned on, no channel resistance is added to the effective resistance controlled by the trimming circuit.

The invention provides an arc welding-brazing method for titanium-aluminum dissimilar alloy TIG (tungsten inert gas) arc preheating. A TIG preheating welding gun is introduced to common arc welding, a titanium-aluminum connector is locally preheated by heating a copper backing plate with a TIG preheating arc, V-shaped grooves with truncated edges are processed on two sides of each of a titanium alloy plate and an aluminum alloy plate, the copper backing plate is additionally padded at the butt joint of the connector, the TIG arc is used for heating the back of the copper backing plate, areas close to the titanium-aluminum connector are preheated by means of heat conduction of the copper backing plate, and uniform movement of the TIG preheating arc and a main arc is ensured during welding. The arc is used as a heating source, the requirement on cleaning the surface of a workpiece can be lowered by the aid of a cathode atomizing function of the arc, growth of intermetallic compounds of titanium-aluminum brazing interfaces can be hindered by the aid of an electromagnetic stirring function of the arc, appearance and distribution of the intermetallic compounds are improved, a high-strength titanium-aluminum welding connector can be formed, the equipment cost is low, practicability is high, and the arc welding-brazing method is convenient in popularization and application.

The invention discloses an intermediate-pressure control two-position variable axial plunger hydraulic motor, which belongs to the technical field of hydraulics. The hydraulic motor comprises a shuttle valve, a reducing valve, a two-position four-way valve, a variable hydraulic cylinder, a damper, a variable axial plunger hydraulic motor, a washing shuttle valve and a washing overflow valve. The pressure of system high-pressure oil is reduced into an intermediate pressure by the shuttle valve and the reducing valve so as to drive a servo piston of the variable hydraulic cylinder to move. Due to the adoption of intermediate-pressure control, the hydraulic motor can simultaneously integrates the advantages of controlling the variable hydraulic cylinder by a system high pressure and a system low pressure so as to easily realize high-speed and low-speed adjustment in the conceptual design of the same variable motor, select relatively greater damper bore diameters, realize proper variable speeds, achieve a wider speed adjustment range and high control performance, and reduce the sensitivity of the variable hydraulic cylinder to pollution. An initial position of motor displacement can be randomly set to be a maximum or minimum displacement position according to the needs of clients. Due to the adoption of the hydraulic cylinder with a medium piston size, the overall dimension of the whole variable motor can be optimally designed.

A laser processing system quickly and flexibly modifies a processing beam to determine and implement an improved or optimum beam profile for a particular application (or a subset of the application). The system reduces the sensitivity of beam shaping subsystems to variations in the laser processing system, including those due to manufacturing tolerances, thermal drift, variations in component performance, and other sources of system variation. Certain embodiments also manipulate lower quality laser beams (higher M² values) to provide acceptable shaped beam profiles.

A pre-adhesive syrup copolymer composition comprising an acid functional acrylate solute copolymer, a monomer solvent mixture, and a polyaziridine crosslinking agent is disclosed.

An interferometric hydrophone is disclosed that comprises a first mandrel defining an interior that is open to surrounding fluid. A sensing optical fiber is wound upon the first mandrel. A second mandrel is positioned in surrounding relationship with respect to the first mandrel. The first and second mandrels define a first chamber therebetween. A case encloses the first and second mandrels and first chamber. The cylindrical case and the second cylindrical mandrel define a second chamber therebetween, which is sealed and filled with gas or vacuum.

The invention discloses a robust beamforming method with resistance to array system errors. The method comprises the following steps: first, carrying out eigen-decomposition of a sampled data covariance matrix received by an array antenna; estimating an eigenvector corresponding to a desired signal according to the correlation between the steering vector of the desired signal and the eigenvector corresponding to the desired signal, so as to further remove the eigenvector corresponding to the desired signal out of the covariance matrix; performing weighted combination to a subspace (formed by the rest of eigenvectors) and an interference plus noise covariance matrix estimated by Capon spectrum to obtain an interference plus noise covariance matrix used in the beamforming method disclosed by the invention; and carrying out a quadratically constrained quadratic optimization algorithm to obtain the corrected steering vector of the desired signal. The robust beamforming method provided by the invention has the advantages of effectively avoiding performance reduction caused by array system errors and greatly improving the robustness of a beamformer; compared with the most of current robust beamforming methods, the robust beamforming method provided by the invention is capable of getting closer to a theoretical output SINR (signal to interference plus noise ratio) and has better output performance.

A perpendicular magnetic recording write head has a write pole, a trapezoidal-shaped trailing shield notch, and a gap between the write pole and notch, with the gap being formed of a nonmagnetic mask film, such as alumina, a nonmagnetic metal protective film and a nonmagnetic gap layer. The write pole has a trailing edge that has a width substantially defining the track width and that faces the front edge of the notch but is spaced from it by the gap. The write pole has nonmagnetic filler material, such as alumina, surrounding it except at its trailing edge, where it is in contact with the gap. A reactive ion beam etching (RIBE) process removes the filler material at the side edges of the write pole and thus widens the opening at the side edges. The nonmagnetic metal film protects the underlying mask film and write pole during the widening of the opening. The gap layer and trailing shield notch are deposited into a widened opening above the write pole, so the sides of the notch diverge to cause the generally trapezoidal shape.

A tuning fork gyroscope typically including at least one proof mass with an upper sense plate disposed above the proof mass and a lower sense plate disposed below the proof mass and means for sensing changes in the nominal gaps between the sense plate and the proof mass and for outputting a signal indicative of the gyroscope angular rate.

A composition including a purified lipid cell-wall component or analog or derivative thereof and a suitable pharmaceutical carrier, medium, excipient or adjuvant is described. The composition is useful in prophylactic and therapeutic methods of treating a microbial infection in a subject, typically a mycobacterial infection such as tuberculosis, and immune disorders, inflammatory conditions and allergies in a subject, typically autoimmune diseases. It is also useful in diagnostic methods. The purified lipid cell-wall component is typically a purified mycolic acid or a mixture of purified mycolic acids from a bacterium which produces mycolic acids. The bacterium is from Mycobacterium, Corynebacterium, Nicardia or Rhodococcus.