332results about How to "Restore performance" patented technology

Systems and methods are provided for writing code to access data arrays. One aspect provides a method of accessing a memory array. Data is provided within a one-dimensional array of allocated memory. A dimensional dynamic overlay is declared from within a block of statements, and the declaration initializes various attributes within an array attribute storage object. The data is accessed from within the block of statements as a dimensional indexed array using the array attribute storage object. Another aspect provides a method of creating and accessing a dimensional dynamic array. A dimensional dynamic array is declared from within a block of statements, and memory storage for the array is dynamically allocated. A dynamic overlay storage object is also provided and its attributes are initialized from the dynamic array declaration. The data is accessed as a dimensional indexed array from within the block of statements using the array attribute storage object.

The liquid ejection apparatus comprises: a liquid ejection head having an ejection port surface on which ejection ports for ejecting liquid are formed; a wiping device having a blade member which wipes and cleans the ejection port surface; a sliding device which causes the blade member to slide relatively with respect to the ejection port surface; a cleaning capability identification device which identifies a cleaning capability of the wiping device; and a cleaning capability restoration device which restores the cleaning capability of the wiping device in accordance with the cleaning capability identified by the cleaning capability identification device.

The invention discloses an offline cleaning and evaluating device of a reverse osmosis membrane element and an application method of the device, belonging to the technical field of water treatment. The method can be used for evaluating the performance of the reverse osmosis membrane element, typically selecting cleaning agents according to the pollutant ingredients and contents and cleaning a single reverse osmosis membrane element in off-line multi-angle and multilevel manner by means of such operations as washing by a large amount of water, reverse washing, positive washing and soaking, and in the cleaning process, the method can be used for monitoring the performance of the reverse osmosis membrane element and controlling such factors as cleaning flow rate, pressure, cleaning time and temperature, so as to improve a cleaning effect. The offline cleaning and evaluating device disclosed by the invention can be also used for evaluating and testing the performance of the agents and the reverse osmosis membrane by simulating the onsite operation conditions.

A method of repairing an acoustically treated area of a composite honeycomb sandwich structure restores the acoustic performance of the structure. An impaired section of the honeycomb core is removed and replaced with a honeycomb repair plug. Cell walls of the repair plug are bonded to cell walls of the core.

The present disclosure relates to the correction of charge loss in a radiation detector. In one embodiment, correction factors for charge loss may be determined based on depth of interaction and lateral position within a radiation detector of a charge creating event. The correction factors may be applied to subsequently measured signals to correct for the occurrence of charge loss in the measured signals.

A centrifugal pump has impellers for pumping low flow, high viscous materials. The impellers have high exit angles greater than 30 degrees and preferably greater than 50 degrees. The impellers and diffusers have specific geometry that varies with viscosity. The pump has zones of impellers and diffusers with the exit angles and geometry in the zones differing from the other zones. The exit angles decrease and geometry varies in a downstream direction to account for a lower viscosity occurring due to heat being generated in the pump. One design employs small diameter impellers and high rotational speeds.

The invention relates to a hydrogen-gasoline mixed fuel engine and its control method, which mainly includes an electric control gasoline injection and ignition system and an electric control hydrogen injection and ignition system. The electric control hydrogen injection and ignition system includes a hydrogen injection and ignition control unit, a fuel injection pulse width control module and an ignition angular advance control module. The fuel injection pulse width control module is disposed between the electronic control unit and the fuel nozzle controlled by the hydrogen injection and ignition control unit. The ignition angular advance control module is disposed between the electronic control unit and the ignition module controlled by the hydrogen injection and ignition control unit.

Recovery of PEM fuel cell performance is achieved by evacuating (61, 62) or by flowing water absorbing gas (46) through, or both, the fuel flow field (12, 13, 19, 20), the air flow field (25, 26, 30, 31), and the water flow field (36, 39), while resistance of the individual cells, or of the fuel cell stack, is measured; the dry out process is continued until the resistance of the cells (or the resistance per cell, measured across the fuel cell stack as a whole), has increased by at least 5 to 1 (preferably 10 to 1) over the normal resistance of the cells. The water absorbing gas may be air (23) or nitrogen (47); it may be at ambient temperature or heated (50).

The exhaust gas temperature control method includes executing an exhaust gas temperature control to raise an exhaust gas temperature upon determining that a purificatory performance of an exhaust gas purification device of an engine has declined. The step of executing of the exhaust gas temperature control includes performing a first fuel injection control in which a timing of a main fuel injection is retarded and a post fuel injection is executed after the main fuel injection when the internal combustion engine is operating in the first operating region, and performing a second fuel injection control in which the timing of the main fuel injection is retarded and an execution of the post fuel injection after the main fuel injection is prohibited when the internal combustion engine is operating in the second operating region.

A system and method is disclosed for mitigating the scintillation and fading effects of baseband wireless, radio frequency wireless, optical wireless and satellite communication links. The system uses a space-time channel model to derive an optimal processing architecture for signal recovery through a scintillation channel. The signal power is collected by space-time sampling within the four dimensional volume of the spatial and temporal spread. Consequently, the space-time equalizer can effectively recover the lost signal power induced by the spreading effects of atmospheric scintillating medium. The advantages of this invention include a decrease in link outages resulting in higher link availability and more reliable data network services.

A device for controlling restoration of a motor driven power steering (MDPS) system may include a controller configured to control an MDPS system model to output a target steering column speed command corresponding to a restoration control torque command based on a received error between a target steering column speed and an actual steering column speed, and a disturbance observer configured to compensate for a disturbance included in an output of the MDPS system model to provide the disturbance to an output of the controller, in which the output of the MDPS system model may be fed back to an input of the controller.

The embodiment of the invention discloses a double-side polishing device and method capable of controlling the rigidity of a polishing pad through a cluster dynamic magnetic field. The whole process from rough polishing to fine polishing of both sides of a workpiece is achieved by adjusting the rigidity of the flexible polishing pad, and the problem that in the traditional machining process, machining of the workpiece is nonuniform due to the fact that the relative speed between different positions of the workpiece and the polishing pad is inconsistent is solved. The double-side polishing device capable of controlling the rigidity of the polishing pad through the cluster dynamic magnetic field comprises a variable-rigidity cluster magnetic-control polishing pad generating mechanism, a workpiece fast clamping mechanism and a workpiece movement driving mechanism, wherein the variable-rigidity cluster magnetic-control polishing pad generating mechanism comprises a first magnetic field generating block and a second magnetic field generating block which are arranged symmetrically; the first magnetic field generating block and the second magnetic field generating block each comprise a shell, a deflection spindle, an eccentric camshaft, a magnetic mounting seat, permanent magnets and a motor; the workpiece fast clamping mechanism comprises a working slot, a clamping plate, a connecting rod, a hinge plate, a fixed hinge, a square magnet, an electrical soft iron block, annular cast iron and a strip-shaped permanent magnet; and the workpiece movement driving mechanism comprises a supporting block, a crossbeam, a horizontal linear motor, a vertical beam and a vertical linear motor.

Provided in some embodiments are systems and methods for transient-pressure test of an oil reservoir water injection well system. Embodiments provide for determining a fracturing injection rate for the well, setting a test injection rate preferably below the fracturing injection rate, conducting a stabilized injection of water into a wellbore of the well at the test injection rate for a prescribed period, and conducting a fall-off test including shutting-in the well for a prescribed fall-off period, and acquiring test data indicative of fluid pressure in the wellbore of the well during the injection and the fall-off periods. Embodiments also provide for generating a model prediction, comparing the model to the test data to determine whether it is a match for the well, and associating the parameter values with the well, including the severity and the location of the shallow damage, if the reservoir model is a match.

The invention relates to a compound oxide catalyst for ammonia selective reduction of nitrogen oxide and a preparation method of the compound oxide catalyst. The catalyst is mainly applied to purification of nitrogen oxide in flue gas of factories and tail gas of motor vehicles. The catalyst is mainly prepared from manganese oxide and rare-earth oxides with different contents, and is characterized by good low-temperature activity, strong water resistance and strong sulfur poisoning resistance for the reaction of ammonia selective reduction of nitrogen oxide, and over 80 percent of conversion rate of nitrogen oxide in a temperature range of 50-300 DEG C. The catalyst can be regenerated to completely recover the activity by means of simply rinsing after sulfur poisoning. The catalyst has a simple preparation method, low cost and good low-temperature activity, and has a good application prospect in purification of nitrogen oxide in flue gas of factories and tail gas of motor vehicles.

In one embodiment a method is provided for maintaining a substrate processing surface. The method generally includes performing a set of measurements on the substrate processing surface, wherein the set of measurements are taken using a displacement sensor coupled to a processing surface conditioning arm, determining a processing surface profile based on the set of measurements, comparing the processing surface profile to a minimum profile threshold, and communicating a result of the profile comparison.

The invention discloses a method for testing instability of a negative bias temperature. The method comprises the following steps: determining the service life of a device under at least two different test negative biases, and determining a functional relationship between the test negative bias and the service life of the device in a fitting manner; calculating the service life of the device in a normal working state under a working negative bias according to the determined functional relationship; and comparing the calculated service life of the device with a pre-set threshold, wherein if the calculated service life is longer than the threshold, the test is passed. In the process of testing the service life of the device under different test negative biases, the test negative bias is reduced to the working negative bias before measuring a designated parameter of the device each time so as to avoid recovery of the device performance, ensure the accuracy of the measurement result and the accuracy of the entire test process and increase the processing speed of the entire test process; and moreover, compared with the prior art, only one important parameter of the device is tested in the scheme of the invention, and thus the test speed is further increased.

The invention discloses a chemical cleaning method for nanofiltration or reverse osmosis membranes. The chemical cleaning method includes the following steps: (1) pickling the nanofiltration or reverse osmosis membranes by acidic solutions; (2) cleaning the nanofiltration or reverse osmosis membranes by product water after pickling; (3) performing alkali washing on the nanofiltration or reverse osmosis membranes by alkaline cleaning solutions; (4) cleaning the nanofiltration or reverse osmosis membranes by the product water after alkali washing to complete cleaning of the nanofiltration or reverse osmosis membranes. The chemical cleaning method has the advantages that various pollutants on the nanofiltration or reverse osmosis membranes can be efficiently removed, the operating pressure ofthe nanofiltration or reverse osmosis membranes can be reduced, the yield of clear liquid of the nanofiltration or reverse osmosis membranes can be increased, the service life of the nanofiltration or reverse osmosis membranes can be prolonged, the power consumption of the clear liquid can be lowered, and stable operation of landfill leachate treatment plants can be guaranteed; the chemical cleaning method has the advantages of simple process, convenience in operation, low cleaning cost, high cleaning efficiency, good cleaning effect, high application value, good application prospect and thelike.

The present invention relates to an aromatic olefin-reducing catalyst mainly solving the problems of short carclazyte life, frequent replacement, large labor intensity, and serious environmental pollution when the carclazyte is used for removing trace olefins in an aromatic material in current industry. The aromatic olefin-reducing catalyst is used, the average pore diameter of the aromatic olefin-reducing catalyst is 5-30nm, the aromatic olefin-reducing catalyst comprises the following components by weight: 0 to 15% of lanthanide elements or a mixture thereof; 0 to 20% of oxides of one or more elements selected from Ca, Zn , Mg and Ti; and 30 to 90% of a molecular sieve, the molecular sieve is at least one selected from mordenite, Y zeolite, ZSM-5 molecular sieve, MCM-22 molecular sieve, MCM-56 molecular sieve, and beta-molecular sieve; and a carrier is one substance selected from alumina and silica or a mixture thereof, and by the technical scheme, the problem is preferably solved, and the method can be used for aromatic olefin-reducing industrial production.

The present invention provides an exhaust gas treatment method including oxidation treatment for converting metallic mercury contained in combustion exhaust gas into mercury chloride; and mercury removal treatment for removing mercury from the combustion exhaust gas by dissolving the mercury chloride in water, wherein a plurality of oxidation catalysts for performing the oxidation treatment are provided, and during the time when the oxidation treatment is performed, at least one of the oxidation catalysts performs catalyst performance restoration treatment without performing oxidation treatment. According to the present invention, the deterioration in mercury removal performance can be restrained even in continuous operation on condition that mercury is oxidized in a low temperature region not higher than 300° C.

The invention relates to an asphalt pavement net-shaped crack treatment regeneration sealing layer material and a preparation method thereof. The asphalt pavement net-shaped crack treatment regeneration sealing layer material is characterized by being composed of the raw materials in parts by weight: 70-100 parts of a composite emulsion and 200-400 parts of a fine aggregate; the composite emulsion is prepared by mixing the raw materials in pars by weight: 20-50 parts of an inorganic solution and 200-600 parts of an organic emulsion; the inorganic solution is an acidic silicon solution or a neutral silicon solution, the silica content is 10-30% (mass), the pH value is 3-7, the sodium oxide content is less than 0.5% (mass), and the average particle size is 10-20 nm; the organic emulsion comprises the raw materials by weight: 100 parts of a regeneration agent emulsion and 100-500 parts of modified emulsified asphalt. The asphalt pavement net-shaped crack treatment regeneration sealing layer material has strong permeability, plays good seam-sealing and waterproof roles in cracks, and has remarkable regeneration and reduction improvement effects on aged asphalt.

The invention relates to a bituminous cold reclaiming agent and application of the bituminous cold reclaiming agent in cold reclaiming of bituminous concrete. The bituminous cold reclaiming agent comprises an impregnating compound and a desiccating agent. The bituminous cold reclaiming agent is strong in permeation and infiltration force and enables aging bitumen in reclaimed asphalt pavement (RAP) to be activated and recover performance of the bitumen, and then the desiccating agent is added to volatilize diluents in an infiltration material to solidify the infiltration material to form strength. Finally, the void ratio of reclaimed asphalt mixture is lower than 6%, strength performance, water stabilizing performance, high-temperature performance and low-temperature performance achieve performance indexes of hot-mix asphalt mixture, and operating requirements of upper and middle surface layers of asphalt roads in each level are met. According to the invention, the method is simple and easy to operate and energy-saving, the used bituminous concrete for each structure layer of asphalt concrete pavements in each level can be completely used and reused under the condition that composite cost is not greatly increased, and wide popularization and application values are achieved.