134 results about "Performance recovery" patented technology

The inorganic nanometer particle modified high performance regenerated plastic consists of recovered plastic 5-98 wt%, new plastic in the same type 0-93 wt%, inorganic nanometer particle 1-30 wt%, flexibilizer and compatilizer 1-30 wt%, and alkali free glass fiber 0-45 wt%, and the surface of the alkali free glass fiber is treated with silane coupler in the amount of 0.2- 5% of the added alkali free glass fiber. The said components are mixed homogeneously through stirring, melted and extruded to form.

A system for fault and performance recovery in a communication network includes a set of network apparatuses as well as a plurality of sites connected by means of connections having a given topology. The network also includes routers for implementing given routing policies and has associated therewith at least one database maintaining information regarding the network apparatuses. The system includes test modules for executing performance tests created automatically by exploiting the information available on the topology of the connections between the various sites and by accessing the database in question. The test modules are configured for analysing the results of the performance tests to detect possible fault and performance impairment conditions of the network. In the presence of a fault and performance impairment condition detected in the network, the routers modify the routing policy to compensate for the fault and performance impairment condition.

Performance of a fuel cell stack (12) is recovered following long term decay by connecting (51) an auxiliary load (50) to the fuel cell while shutting off one or more of oxidant inlet valve (27a), oxidant pressure regulating valve (28a) or oxidant pump (26), which all may be achieved with a controller (46), to cyclically starve the cathode of oxidant so that it achieves hydrogen potential, e.g., less than 0.1 volts, for on the order of tens of seconds, repetitively, such as at every 10 or 20 seconds, while the auxiliary load remains connected, initially drawing 10 to 100 mASC, for example. Complete rejuvenation is obtained following 1800 or more cycles over a period of five or more hours.

Real-world data may not be sparse in a fixed basis, and current high-performance recovery algorithms are slow to converge, which limits compressive sensing (CS) to either non-real-time applications or scenarios where massive back-end computing is available. Presented herein are embodiments for improving CS by developing a new signal recovery framework that uses a deep convolutional neural network (CNN) to learn the inverse transformation from measurement signals. When trained on a set of representative images, the network learns both a representation for the signals and an inverse map approximating a greedy or convex recovery algorithm. Implementations on real data indicate that some embodiments closely approximate the solution produced by state-of-the-art CS recovery algorithms, yet are hundreds of times faster in run time.

A method and apparatus are disclosed for automatic solid state drive performance recovery. A detection module detects a first SSD exceeding a fragmentation threshold. A plurality of drives comprises the first SSD and stores a data copy of data stored on the first SSD. An erase module erases a mapping table for the first SSD. The mapping table maps Logical Block Addresses LBA to physical addresses for the first SSD. A rebuild module rebuilds the data and the mapping table on the first SSD from the data copy.

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 present invention relates to communication field, wherein an embodiment of the invention discloses an ECMP path soft recovery method in a MPLS-TP packet transfer network. The embodiment of the invention comprises the following steps: realizing functions of congestion discovering, congestion positioning, etc. by the expanded OAM information; transmitting TDM grouping dynamic clock by MPLS-TP for adjusting operation; path cracking of the bypass heavy routing; when congestion occurs, firstly adjusting TDM service data grouping length through a source end for improving the delay characteristic; adopting a local service for shunting to the service with overhigh speed for steering clear of the congestion routing; if local link resource is insufficient, informing the source end for adjusting the bandwidth allocation, allocating higher bandwidth resource on the other N-1 paths; if no enough resources can be allocated or the allocated resources are not adjusted under the principle of simplifying the operation, informing the routing module by the source end, and completing the calculation of the other routing through the mode of incremental computation according to the bandwidth request amount. The method of the invention reduces the time for recovering network congestion. The network flexibility can be enhanced through the mode of self-adapting grouping variable-length transmission, and the using efficiency of the protected resource is increased. The quick performance recovery of the service is realized through the mode of bypass heavy routing cracking. The quick combining operation at the branching point is completed with a special numbering and a signaling process.

The present invention discloses a PID resistant device for a solar photovoltaic component using a non-isolated inverter. The device comprises a direct current power supply, a grounding switch, a diode, a timer and a control circuit. The PID resistant device of the present invention is able to automatically apply a positive to-earth direct current close to an open-circuit output voltage value of the solar photovoltaic component between the cathode at the voltage output of the solar photovoltaic component when the solar photovoltaic component is at a night inactive state, thereby counteracting the influence caused by the fact that the cathode at the voltage output of the solar photovoltaic component is at a negative voltage in the daytime, and realizing the suppression of PID phenomenon and performance recovery for the solar photovoltaic component and achieving the restoration of polarization effect generated in the daytime; furthermore, when the solar photovoltaic component is at an electricity generation state at the day time, the grounding switch 6 is automatically opened so as to effectively prevent the PID resistant device of the present invention from influencing the normal operation of the solar photovoltaic component.

The invention discloses a pavement structure for structure transfer and performance recovery of a semi-rigid base asphalt pavement, which is characterized in that a transferred-structural cold recycled semi-flexible base is on the non-damaged semi-rigid base of the original asphalt pavement; a modified asphalt emulsion slurry seal layer is coated on a cold recycled semi-flexible base; an asphalt pavement bottom layer is on the modified asphalt emulsion slurry seal layer; a modified asphalt emulsion bonding layer is on the asphalt pavement bottom layer; and a surface abrasion layer is on the modified asphalt emulsion bonding layer. The construction method comprises the following steps of: a) cleaning the semi-rigid base asphalt pavement; and b) carrying out the structure transfer and performance recovery of the pavement. The invention has the advantages that the structure transfer of the damaged semi-rigid base of the original asphalt pavement and the damaged surface layer is realized, and the performance of the pavement is recovered and improved, the repaired pavement had good high-temperature stability and less water damage, and the cracking of the base can be effectively prevented, stopped or slowed down; not only the original pavement material is fully used, but also the energy is saved, and the second pollution on the environment is prevented; and the service function of the original pavement is recovered or improved, and the service life of the pavement is prolonged.

A fuel cell system according to the present invention comprises: a fuel cell including a membrane-electrode assembly in which electrodes, each having a catalyst layer, are arranged on both surfaces of a polymer electrolyte membrane; a power storage apparatus connected to a load in parallel with the fuel cell; and a control apparatus that performs performance recovery processing for the catalyst layer by decreasing an output voltage of the fuel cell to a predetermined voltage, wherein an intermittent operation in which a power generation command value for the fuel cell is set to zero and a power supply to the load is covered by power supplied from the power storage apparatus is allowed to be performed if certain conditions for performing the intermittent operation are met, and the performance recovery processing is performed during the intermittent operation, and wherein, if the performance recovery processing is necessary and if a remaining power in the power storage apparatus is equal to or lower than a predetermined amount, the control apparatus delays a timing of performing the intermittent operation and charges the power storage apparatus until the remaining power exceeds the predetermined amount.

Disclosed are embodiments of a semiconductor chip structure and a method that incorporate a localized, on-chip, repair scheme for devices that exhibit performance degradation as a result of negative bias temperature instability (NBTI). The repair scheme utilizes a heating element above each device. The heating element is configured so that it can receive transmission line pulses and, thereby generate enough heat to raise the adjacent device to a temperature sufficient to allow for performance recovery. Specifically, high temperatures (e.g., between approximately 300-400° C. or greater) in the absence of bias can accelerate the recovery process to a matter of seconds as opposed to days or months. The heating element can be activated, for example, on demand, according to a pre-set service schedule, and / or in response to feedback from a device performance monitor.

The invention relates to the technical field of a fuel battery, and discloses a method and device for recovering the fuel battery electric pile performance. The method for recovering the fuel batteryelectric pile performance comprises the following steps of starting a load; loading the current to 200A; enabling the fuel battery electric pile to continuously operate for 5min at 200A; setting the temperature difference of the fuel battery electric pile, the temperature of cooling water, the temperature of the air, the temperature of hydrogen gas, the dew point temperature of the air and the dewpoint temperature of the hydrogen gas; enabling the pressure of the hydrogen gas to be higher than the pressure of the oxygen; loading the current from 200 A to 300 A; continuously operating the fuelbattery electric pile for 30min at 300A; if the output power of the of the fuel battery electric pile equals to or is higher than the preset power, or the average voltage equals to or is higher thanthe preset voltage, the fuel battery electric pile performance recovery is completed. The method for recovering the fuel battery electric pile performance of the embodiment is simple and convenient; the realization is easy; the performance of the fuel battery electric pile in a non-operation state for a long time can be fast recovered, so that the performance recovery efficiency of the fuel battery electric pile is improved.

The invention discloses a self-restoring micro-fluid inertia power switch device, which comprises a gallium-indium metal liquid drop, a poly(N,N'-dimethylacrylamide) (PDMA) base, a glass cover board, a liquid drop storage pool, a rectangular micro-channel, a U-shaped micro-channel and metal electrodes, wherein the liquid drop storage pool, the U-shaped micro-channel and the rectangular micro-channel are arranged on a polymethyl methacrylate (PMMA) plate; the metal electrodes are bonded on the glass cover board; the gallium-indium metal liquid drop is initially located in the liquid drop storage pool; and when the inertia force on a switch is greater than the threshold of a passive valve, a metal liquid breaks through the passive valve and enters a micro-channel electrode, and the switch is connected. The liquid flows to a cutoff passive valve in the U-shaped micro-channel at most; when the inertia force disappears, a capillary force difference of the liquid exists between two ends of the micro-channel, so that the liquid automatically flows to the initial position, and the property of the switch is restored. The self-restoring micro-fluid inertia power switch device disclosed by the invention is simple in structure, stable and reliable in contact; and compared with an existing micro-fluid inertia switch, the switch has self-restoring capability, and can be used for a plurality of times.

The invention discloses a waste and old oil well pipe performance recovery process which comprises the following steps: (1) heating; (2) sorting; (3) carrying out constant-diameter wall reducing; (4) carrying out heat diffusion; (5) carrying out negative-tension diameter reducing; (6) sorting and dimensioning; (7) stretching and carrying out a hydraulic test: stretching the sorted and dimensioned waste and old oil well pipes, and carrying out the hydraulic test; and (8) packaging: packaging the detected and qualified waste and old oil well pipes, and putting into service. The waste and old oil well pipe performance recovery process has the advantages that the waste and old oil well pipes are reforged, so that the repaired oil well pipes are more compact in internal structures, higher in corrosion resistance and higher in wear resistance, the waste and old oil well pipes are subjected to same-specification regenerative repair to meet the specification and the API (American Petroleum Institute) standard requirements, and the purposes of saving energy, reducing consumption and changing waste materials into valuable materials are achieved.

A fuel cell system is provided having at least one fuel cell including an oxidant electrode, a fuel electrode, and an electrolyte membrane interposed between the oxidant electrode and the fuel electrode. The fuel cell system includes a temperature detector which detects a temperature of the fuel cell and a controller which operates the fuel cell, controls a potential of the oxidant electrode, and determines whether to perform a performance recovery operation in which an impurity on the oxidant electrode is oxidized. When the performance recovery operation is to be performed, the controller controls the potential of the oxidant electrode to be a desired potential based on the temperature detected by the temperature detector.

This fuel cell system is provided with a control device for performing catalyst layer performance recovery treatment by decreasing the output voltage of a fuel cell to a predetermined voltage. When determining that an oxide film formed on a catalyst layer during the generation of electricity by the fuel cell contains, in addition to a first oxide film that can be removed by decreasing the output voltage of the fuel cell to a first film removal voltage, a second oxide film that cannot be removed unless the output voltage is decreased to a second film removal voltage lower than the first film removal voltage, the control device estimates the amount of the second oxide film, and when determining that the estimated amount exceeds a predetermined amount (A), performs the performance recovery treatment at a set voltage equal to or less than the second film removal voltage.

An ink jet printing apparatus and an ink jet printing method are provided which can perform ink ejection performance recovery operations on a print head at optimal timings while at the same time reducing a volume of ink discarded by the recovery operations. Thirty days after a previous recovery operation, a suction-based recovery operation is performed on the print head prior to the printing operation that forms an image on a print medium. The recovery operation is performed under the condition that a temperature increase of the print head caused by a preliminary ejection of the print head is not more than a predetermined value.

A performance recovery operation for a fuel cell system effectively restores a fuel electrode such that, upon starting or stopping of operation of the fuel cell, both fuel and oxidizing electrodes are disposed in a hydrogen atmosphere and then the fuel electrode is maintained at a higher potential level than in a normal operation.

A system and computer-implemented method for generating real-time performance recovery advisories for a centrifugal compressor of a fleet of centrifugal compressors are provided. The method is implemented using a computer device coupled to a user interface and a memory device and the method includes determining a performance deviation of the compressor using a determined actual performance of the compressor and a predicted performance of the compressor, comparing the performance deviation to a predetermined threshold range of performance deviation, and recommending to a user at least one source for the performance deviation, the recommendation including a value of the performance recovery available for each source.

The invention provides a ZSM-5 zeolite catalyst for preparing propylene by methanol dehydration, which contains a ZSM-5 zeolite material and alumina; the active ingredient of the catalyst is commercially available 200-800-nanomter ZSM-5 zeolite crystal powder, the framework of the catalyst has the Si / Al molar ratio being more than 500 and is prepared by means of bonding formation of aluminum sol, and aluminum is dispersed in zeolite powder amorphously after high temperature calcining. The catalyst which is applied to MTP (Methanol To Propylene) reaction has high catalytic activity and propylene selectivity and long stable cycle of high conversion rate of catalytic reaction. Industrial crude methanol with 90% concentration is used as a raw material for reaction, and the one-way life is more than 700 hours. The regenerative method of the ZSM-5 zeolite catalyst is simple and the performance recovery after regeneration is excellent. In addition, the invention provides a preparation method and application of the catalyst.

Performance of a fuel cell stack (12) is recovered following long term decay by connecting (51) an auxiliary load (50) to the fuel cell while shutting off one or more of oxidant inlet valve (27a), oxidant pressure regulating valve (28a) or oxidant pump (26), which all may be achieved with a controller (46), to cyclically starve the cathode of oxidant so that it achieves hydrogen potential, e.g., less than 0.1 volts, for on the order of tens of seconds, repetitively, such as at every 10 or 20 seconds, while the auxiliary load remains connected, initially drawing 10 to 100 mASC, for example. Complete rejuvenation is obtained following 1800 or more cycles over a period of five or more hours.

The invention discloses a scraper conveyor re-manufacturing method. The re-manufacturing method comprises measuring wear failure amounts of all parts of a worn scraper conveyor, and carrying out re-manufacture according to the wear failure amounts, wherein the re-manufacture comprises restoration and / or replacement and the restoration method is a laser cladding method. The method realizes specific surface restoration of a head, a tail, a ramp pan and a middle groove according to a wear degree or replacement of members with high local wear levels, realizes performance recovery, even improves original performances, obviously improves waste and old part utilization rates and reduces resource waste and environment pollution.

The invention provides a hypersonic aircraft trajectory tracking control method for performance recovery and belongs to the technical field of air-breathing hypersonic aircraft trajectory tracking control. The method comprises the steps that 1, the specific engine safety constraint boundary is obtained; 2, the speed tracking error upper limit of the hypersonic flight vehicle is set according to the minimum speed constraint and the speed expected trajectory; 3, for the longitudinal speed dynamic state of the hypersonic aircraft, a dynamic inverse control method is adopted to obtain a throttlingrate control law of a speed subsystem; 4, a system dynamic model is converted into an error dynamic model to obtain the backstepping control law by adopting the backstepping method aiming at the height dynamic state of the hypersonic aircraft; 5, the control strategy is established to realize restarting of an engine; 6, the starting condition of the engine is obtained through calculation; and 7,after the aircraft reaches the starting condition, the engine is ignited again, performance recovery of a propulsion system is completed, the aircraft is switched back to a nominal controller, and then the original expected trajectory is tracked again.

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).

A fuel cell system according to the present invention comprises: a fuel cell including a membrane-electrode assembly in which electrodes, each having a catalyst layer, are arranged on both surfaces of a polymer electrolyte membrane; and a control apparatus that performs performance recovery processing for the catalyst layer by decreasing an output voltage of the fuel cell to a predetermined voltage, wherein the control apparatus predicts a timing of an output increase request being made to the fuel cell and determines the necessity and content of the performance recovery processing based on a result of the prediction.

A method for recovering the performance of a fuel cell stack mounted within a vehicle is provided. A method includes a recovery process of continuously applying a predetermined load using a load device when an air supply is stopped and hydrogen is supplied to a fuel cell stack to output current from the fuel cell stack. Further, protons and electrons generated by hydrogen oxidation reaction at an anode are moved to a cathode, to produce hydrogen at the cathode and simultaneously remove oxide on the catalyst surface of the cathode.

The invention relates to the technical field of filtering, in particular to a reverse-blowing detection device for a self-cleaning type filter element. The reverse-blowing detection device comprises a detection channel; a manmade dust sending pipe for artificially generating dust and a filter element section for filtering dust in air are arranged on the detection channel in sequence; a reverse-blowing device for reversely blowing the filter element of the filter element section is arranged on the filter element section; a first differential pressure transmitter for measuring the differential pressure between the front end and the rear end of the filter element section is also arranged on the detection channel; the dust is sent out through the manmade dust sending pipe, the reverse-blowing device is used for reversely blowing the filter section, and then, the differential pressure after reverse-blowing is detected through the differential pressure transmitter, so that the performance recovery situation of the filter element after the self-cleaning type filter element is reversely blown can be clearly analyzed. Through stimulation of the working conditions of the self-cleaning type filter element, corresponding data is obtained to help an enterprise to improve the quality and the performance of the filter element.

There are provided an inkjet recording device that can stably secure liquid-repellent performance on a surface of a liquid-repellent film formed on a nozzle surface for a long term, and a maintenance method thereof. The inkjet recording device includes: an inkjet head that has a nozzle surface in which a nozzle opening of a nozzle to eject a liquid is formed and on which a liquid-repellent film is formed with an amorphous fluorine resin material; a cleaning portion that wipes off and cleans a surface of the liquid-repellent film by a wiping member; and a liquid-repellent performance recovery processing portion that performs liquid-repellent performance recovery processing to recover liquid-repellent performance on the surface of the liquid-repellent film by heating the liquid-repellent film.