99 results about "Age factor" patented technology

A method and system for driving a light emitting device display is provided. The system provides a timing schedule which increases accuracy in the display. The system may provide the timing schedule by which an operation cycle is implemented consecutively in a group of rows. The system may provide the timing schedule by which an aging factor is used for a plurality of frames.

The present invention is directed to a system and a method for generating a temporally ranked set of search results in response to a query. Each result in the set of search results can be ranked temporally or based on the reputation associated with authors of each result and the reputation associated with the repository where each result is located. Temporal ranking takes into account a present importance weight and a future importance weight are assigned to each result. The present importance of each result uses creation date, publication date, in-link dates and search frequency, and the future importance uses an aging factor based on the elapsed time from publication for each search result and a rate at which each search result decreases in importance. Temporal ranking can be applied as a modification of existing and common search engine algorithms include PageRank and HITS.

The invention discloses a corona aging acceleration device and a corona aging acceleration method for a polymer insulating material. The device comprises a sealed corona aging experimental case in which a pin array electrode and a metal plate electrode are arranged, wherein the pin array electrode is connected with a high voltage generation device; the metal plate electrode is grounded; a pinpoint array is arranged on the pin array electrode; a test sample is arranged on the metal plate electrode, and is opposite to the pinpoint array; and after voltage is applied, uniform corona discharge is generated between the pin array electrode and the metal plate electrode to perform corona aging on the test sample. The device and the method have the advantages of low requirements on experimental conditions, convenience for operation and quantitative control over aging factors in an experiment, and short experimental period, and are applied to researches on the corona aging resistance of insulating materials in a laboratory.

An apparatus for estimating a deterioration may include a battery pack, a state information sensing unit configured to sense a state of the battery pack to generate state information, a conversion operation unit configured to convert into an open circuit voltage (OCV) using the generated state information and estimate a state of charge (SOC) using the converted OCV, a first SOH estimation operation unit configured to estimate a first state of charge (SOH) using the estimated SOC, a battery aging factor calculation unit configured to calculate a battery aging factor using the estimated SOC, a second SOH operation unit configured to apply the calculated battery aging factor to a preset lookup table to calculate a second SOH, and a filtering unit configured to filter the first SOH and the second SOH to generate a final SOH.

The testing method of high-temp. component creep life adopts the simulation pipe-bursting test machine or durable strength testing machine to make creep rupture acceleration simulation test of new materials which have different ageing extents and are not aged under the condition of a series of temp. and stresses. It adopts polynomical regressive analysis method to process data, and obtain the relationship formula of non-aged material between ageing factor, temp. and life time. By utilizing test, data processing and formula operation the material creep service life can be obtained.

Disclosed is a surface-penetration reinforcing agent that is used to effectively repair a damaged reinforced concrete structure. The surface-penetration reinforcing agent includes a silicate compound, an acrylate monomer, an amine compound and a silane compound as reactants. Further disclosed is a method for repairing a damaged reinforced concrete structure using the surface-penetration reinforcing agent depending on the aging grade of the reinforced concrete structure. According to the repair method, the surface-penetration reinforcing agent can be used to efficiently repair a damaged reinforced concrete structure depending on the aging grade of the reinforced concrete structure classified by whether or not the reinforcing bars are corroded in damaged portions of the concrete and the degree of carbonation in the concrete. The procedure of the repair method using the surface-penetration reinforcing agent is varied depending on the aging grade of reinforced concrete structure to enhance the strength of the aged reinforced concrete structure and efficiently block the introduction of aging factors into the aged reinforced concrete structure from the outside, so that the endurance life and service life of the aged reinforced concrete structure can be prolonged.

The invention discloses an XLPE cable insulation aging state determining method. The method includes firstly, determining whether aging exists or not by means of the partial discharging amount of a first cable sample, if not, calculating the isothermal relaxation current according to a second cable sample, acquiring aging factors, calculating the activation energy of XLPE according to a third cable sample, adopting the aging factors and the activation energy of XLPE as common criterion, and acquiring whether aging of the cable to be tested exists or not and the severity of the aging state. The cable insulation aging state can be determined by the isothermal relaxation current method and the activation energy method comprehensively, the defect that large determination errors are produced since the XLPE insulation cable aging state is determined by one single indicator is overcome, the more accurate estimation of the XLPE cable insulation aging state is provided by combining the electric quantity (aging factors) and non electric quantity (activation energy), and the method is simpler.

The invention provides a simple method to solve the problem of inaccurate estimation of the secondary battery capacity. By estimating the remaining capacity of the battery before the cut-off of charge and discharge, the battery capacity is calculated at the final charge and discharge termination stage and smoothly approaches the set value according to the set trend value, which actually reflects the real use status of the battery in a system. The system can accurately know the battery condition and make the necessary response, and at the same time, the factors of battery aging are included in the calculation of the remaining capacity, so as to accurately obtain the fully charged capacity of the battery.

The invention discloses a residual battery capacity estimation management system and method. Application condition of open-circuit voltage capacity estimation is fully taken into consideration, and under the condition of meeting the use condition, fine multi-temperature-range OCV data accuracy is utilized to make up for the error due to long-time ampere-hour integration, and thus estimation precision is improved; meanwhile, under the condition of not meeting the OCV condition, platform period and mutation period judgment is introduced; in the platform period, estimation is carried out through an ampere-hour integration method; and in the mutation period, estimation is carried out through an interpolation method, and corresponding early warning processing is carried out, thereby preventing overcharging / overdischarging of a battery effectively, prolonging the recycle service life, and reducing accident risk. The two cases above are measured through test, and influence of different temperatures and aging factors is obtained; and corresponding correction processing is carried out on estimated value, and thus estimation precision is further improved.

The invention provides a pot-type insulator lifetime assessment method based on an artificial accelerated aging test. According to the characterizes of sealing, high temperature and long-time bearing on high voltage of a pot-type insulator, an artificial accelerated aging test platform with electric heating comprehensive factors is designed by means of a multiple-factor laboratory, and characteristic quantities of multiple epoxy resin samples under different degrees of aging are measured. On this basis, analyzing is conducted on test data, by means of an existing empirical formula, a curve-fitting technique and a Weibull probability distribution method are adopted, internal relations among all aging factors, the electrical test quantity and the aging life are researched, relationship is established between the test data of epoxy resin materials and the aging assessment of the pot-type insulator, and the pot-type insulator lifetime assessment method is provided.

The present invention discloses a power equipment fault rate prediction method considering aging factors. The power equipment fault rate prediction method comprises the steps of fitting a fault rate curve by utilizing the characteristics of a weibull distribution of possessing shape parameters, possessing a great flexibility on data fitting and being able to describe the stages of a bathtub curve completely, and carrying out parameter estimation by applying a Gauss-Newton iterative method to obtain the demarcation points of the stages respectively. In addition, the fault rate prediction method of the present invention also considers the influence of different maintenance policies on the device fault rate, and applies an equivalent age method to solve the actual fault rate of a device. The device fault rate obtained by utilizing the method in the present invention is closer to the reality, and the prediction accuracy of the power equipment fault rate can be improved effectively, thereby guaranteeing the accuracy of the reliability and risk evaluation of a system, and providing correlated reliable bases for the dispatching and maintenance of the system.

The invention discloses a battery modeling method based on a Simscape platform. The battery modeling method comprises the following steps: extracting parameters in an equivalent circuit model by an HPPC (Hybrid Pulse Power Characterization) test; carrying out a battery road drive cycle ageing test, testing battery capacity and ohmic internal resistance after each cycle; establishing each circuit module in the equivalent circuit model based on the Simscape platform; establishing battery cell sub models according to each established circuit module; connecting the battery cell sub models in parallel to establish single-section battery sub models; connecting the single-section battery sub models in series to establish a battery pack integral module; and setting ageing factors of each battery cell sub model in the battery pack integral module. According to the battery modeling method based on the Simscape platform disclosed by the invention, modeling precision is higher than that of electric car simulation software ADVISOR which is commonly used at present. The modeling method based on the Simscape platform provides a novel thought and a novel method for modeling in the future, and has the advantages of being simple in modeling and strong in flexibility.

The invention discloses a testing method for an aging factor of a 110 kV cross-linked cable. The testing method comprises the following steps of: (1) pretreating the cable; (2) performing electromagnetic shielding on the two ends of the cable; (3) polarizing the cable; (4) performing transient short-circuiting on the cable; (5) testing polarization current I2 generated by an amorphous and crystal interface and polarization current I3 generated by metal salt and hydrated ions in the interface caused by aging by using a constant temperature relaxing current method and recording values of I2 and I3 of different moments t; (6) calculating time constants tau 2 and tau 3 corresponding to the polarization current I2 and I3 respectively; and (7) calculating the aging factor according to a formula. According to the method provided by the invention, residual life of the cable can be obtained under the condition of not referring to the operation history of a laid cable, the test result is more reliable, and more accurate guidance is provided for reconstruction work of an urban power grid.

The invention relates to a measurement method for detecting the degree of aging of an XLPE cable based on a depolarization current approach. First, the depolarization current of offline cable discharge is measured. Charging and short-circuit discharging are carried out on cross-linked polyethylene (XLPE) insulated cable samples of different specifications. In the charging process, a sample starts to be polarized under step excitation at a voltage U0, the duration of continuous polarization is tp, and the current flowing through the sample is a polarization current ip. After the voltage is removed instantaneously, the sample produces a discharge current in the opposite direction due to short circuit, namely, a depolarization current id. Then, the size of the aging factor A is calculated, and the degree of aging of the XLPE cable is judged. The aging factor of the cable is calculated based on the depolarization current, and the degree of aging of the cable is judged according to the relationship between the aging factor A and the insulation condition. The depolarization current approach can be applied to the detection of a whole cable. The test is faster, simpler, more sensitive and more accurate. No damage is caused to cables.

Methods for the prevention or treatment of disorders and complications of disorders resulting from cell damage caused by an aging-related isoform of NADH oxidase (arNOX) are described. The agent for such inhibition comprises processed various Narcissus tazetta extracts, preferably IBR-DORMIN®, both alone and in combination with other inhibition agents, including ubiquinones like coenzyme Q. These agents bind arNOX and inhibit the ability of arNOX to generate reactive oxygen species, thereby decreasing the ability of arNOX to generate reactive oxygen species. Such agents, and their methods of administration, as extremely effective as part of anti-aging treatments.

The invented aging device and aging method for investigating the aging rule, the life test and quality analysis of the insulation of the stator wire bar. The invented device can apply the aging stresses of the electricity, heat, mechanism as well as the thermal and mechanical stress to the wire bar tested so as to simulate the aging process of the sample of the stator wire bar without damaging the sample. The transformer provided the electric aging factor. The heating plate provides the thermal aging factor. The temperature control device controls the thermal aging temperature. The vibration generator provides the vibration stress. Adjusting the output waveform of the signal generator can change the mode of the vibration. The heating and cooling cycles can be scheduled. Thus, the four aging stresses can be combined in order to meet different aging requirement.

The invention relates to a non-destructive method for evaluating an aging and operation state of cables. According to the method, electromagnetic shielding for two ends of all detected cables is carried out; polarization processing is carried out, insulation of one end is carried out, the other end is connected with a high voltage DC power source, and instantaneous short circuit processing on the polarized cables is carried out to remove free charges on surfaces; a de-polarization test system is accessed to realize de-polarization, isothermal relaxation currents are automatically measured and recorded through a computer, the isothermal relaxation currents I are taken as ordinates, the times t are taken as abscissas, a characteristic curve of the isothermal relaxation currents along with change of the times t is acquired, an aging factor A is acquired, the aging degree can be determined by comparing aging factors of to-be-detection cables and un-aged cables, and the aging and operation state of the cables is evaluated. The method realizes non-destructive detection, can not only evaluate insulation performance of the cables, but also can acquire internal spatial charge and trap distribution characteristics of the cables, and the method has great importance for evaluating insulation performance of the cables.

The invention discloses a method for predicting a service life of a rubber shock absorber; the method comprises the steps: combining aging factors, influencing the use of the rubber shock absorber, and fatigue factors; firstly, establishing an aging service life prediction mathematic model of the rubber shock absorber in use of a hot air accelerated aging test; secondly, establishing a model relationship between static rigidity of a new absorber and fatigue times by means of the aging service life prediction model and the existing performance parameter of an old absorber; further, establishing a relation model between the static rigidity and the time and obtaining a service life prediction model of the rubber shock absorber, thereby realizing prediction of the service life of the rubber shock absorber. The aging factors and the fatigue factors are combined well to predict the service life of the rubber shock absorber, and the prediction precision is high.

An organic light emitting diode pixel circuit comprises a driving node, a pixel driving unit, a display electroluminescence element and an electroluminescence compensating unit, wherein the pixel driving unit is coupled to a data line so as to receive data voltage, responds to the data voltage and provides driving voltage to the driving node; the display electroluminescence element is coupled to the driving node, responds to the driving voltage and emits the light; the level of the driving voltage is related to the aging factor voltage of the display electroluminescence element; the aging factor voltage corresponds to the using time of the electroluminescence element; the electroluminescence compensating unit is coupled to the driving node; an electroluminescence compensating circuit comprises a compensating electroluminescence element; the electroluminescence compensating unit drives the compensating electroluminescence element to emit the light according to the driving voltage; and aging decay compensation on the display electroluminescence element can be realized by the compensating electroluminescence element.

A reliability-based opportunity preventive maintenance optimization model for key components of trains comprises firstly establishing an opportunity preventive maintenance model of the key componentsof a train and a constraint condition thereof, and then obtaining an opportunity service age factor and an opportunity maintenance threshold according to the partial least squares regression method, comprising the steps as follows: firstly initializing the parameters; solving the maintenance service age by the initial value of the preventive maintenance reliability; then using the partial least squares regression method to optimize the model to solve the opportunity service age factor; determining whether the preventive maintenance service age of the component k meets the opportunity maintenance condition, if so, determining whether the component k lacks maintaining or is over-maintained, if not, performing opportunity maintenance on the component k; determining whether the total maintenance service age of the component i is less than or equal to the intended operation cycle; and finally solving the minimum maintenance cost according to the model. The method for the model has fast calculation speed and high solution precision, and the optimized model is capable of effectively reducing the maintenance cost of key components of the train.

An organic light emitting diode (OLED) pixel circuit includes a driving node, a pixel driving unit, an electroluminescent device, and a compensation unit. The pixel driving unit is coupled to a data line receiving a data voltage and provides a driving voltage to the driving node. The display electroluminescent device is coupled to the driving node for illuminating in response to the driving voltage, wherein the level of the driving voltage is related to an aging factor voltage, corresponding to a usage time of the display electroluminescent device. The compensation unit, including a compensation electroluminescent device, is couple to the driving node and drives the compensation electroluminescent device to illuminate in response to the driving voltage, so as to compensate the aging decay of the display electroluminescent device with the electroluminescent compensation unit.

The invention discloses a back propagation (BP) neural network based method for predicting service life of a rubber absorber. According to the method, a BP neural network model of aging life of the rubber absorber is created firstly; according to the created BP neural network model of the aging life of the rubber absorber as well as fatigue life, a BP neural network model of the service life of the rubber absorber is created; and finally, the service life of the rubber absorber is predicted through the BP neural network model of the service life. In the method, aging factors and fatigue factors affecting the use of the rubber absorber are combined, a service life prediction model of the rubber absorber is reasonably created, the service life of the rubber absorber affected by both aging and fatigue is accurately predicted, and the defect of inaccurate prediction of service life of the rubber absorber due to separate research of aging life and fatigue life is overcome.

A method and system for driving a light emitting device display is provided. The system provides a timing schedule which increases accuracy in the display. The system may provide the timing schedule by which an operation cycle is implemented consecutively in a group of rows. The system may provide the timing schedule by which an aging factor is used for a plurality of frames.

A control method for monitoring an oxidation catalyst of an exhaust system is provided. The control method includes determining an open loop factor based on an aging factor and an efficiency curve; controlling an injection of hydrocarbons into an exhaust stream based on the open loop factor; and monitoring the oxidation catalyst based on the injection of hydrocarbons.

A method for incorporating aging effects into the static timing analysis of a design of an integrated circuit includes determining aging factors for the arc-state pairs of standard cells. The aging factors may include nominal aging factors and variational aging factors reflecting on chip variation aging effects. State profiles are determined for each cell instance in the design. The state profile for a cell instance indicates probabilities for each possible state that the cell may occupy. Based on the instance-specific state profiles and the aging factors, instance-specific aging factors are derived. The instance-specific aging factors may then be converted into instance-specific aging effect timing values. The instance-specific aging effect timing values may then be used to generate instance-specific static timing models, which may be used to perform static timing analysis.

A sensing apparatus for detecting fluid quality change using signals obtained from a fluid quality sensor for exposure to a fluid and a reference sensor positioned in a reference sensing means having a fluid trap section holding a part of the fluid. Sensing values obtained from the fluid quality sensor and the reference sensor are compared in determining an aging factor. An application of the sensing apparatus is an apparatus for detecting engine oil quality change in an engine system. With the sensing apparatus, a first aging factor can be calculated after an engine cold soak and a second one can be obtained during engine operation. With these two aging factors, in addition to oil quality change, failures in the engine system and sensors, and oil change events can also be detected. Additionally, since reference sensing values are provided by the reference sensor, power disconnections have least effects.

Systems and methods for estimating an efficiency of a catalyst placed in an exhaust path of a combustion engine are disclosed. In one example approach, a method comprises: ageing the catalyst consecutively at different temperatures for definite time periods; measuring the catalyst conversion efficiency after each ageing step; calculating the ageing factor for each step of the ageing procedure and the accumulative value of the ageing factors for all steps of the ageing procedure; estimating catalyst efficiency correlation factors related to the measured catalyst conversion efficiency for each temperature point and for all ageing conditions; determining a correlation between the catalyst efficiency correlation factors and the accumulative value of the ageing factors; and calculating the conversion efficiency of the aged catalyst based on a predetermined correlation between the accumulative ageing factor and the catalyst efficiency correlation factor.

The invention discloses an asphalt pavement aging simulating method. The method comprises the following steps: inquiring the climate and communication information of the area to be simulated, according to the climate and communication information, calculating the rutting equivalent temperature, UV accelerating factor, raining accelerating factor, and rutting accelerating factor; according to the service life of the simulated pavement, calculating the rutting time, UV radiation time, and spraying time; putting a rutting member into a pavement material life-cycle analysis instrument, starting the pavement material life-cycle analysis instrument to obtain a simulated aged member; and according to the analysis of the multifunctional pavement material life-cycle analysis instrument on the aged member and the weights of aging factors (rutting equivalent temperature, UV accelerating factor, raining accelerating factor, and rutting accelerating factor), obtaining the aging index of simulated member. The aging mode is controlled by a plurality of factors, and thus the simulation is more close to the actual situation of asphalt pavement.

The embodiment of the invention relates to a method and electronic device for prolonging the service life of a power battery. The method comprises the steps of detecting a current working state of thepower battery to obtain a current charging parameter of the power battery; calculating a life attenuation parameter characterizing a life attenuation degree of the power battery based on the currentcharging parameter and a nominal charging parameter; determining the adjustment factor of the power battery charging current based on the life attenuation parameter. The method and the electronic device intelligently adjust the charging current according to the life condition of the power battery, avoid an increase in the aging factor of the power battery caused by excessive charging current, effectively slow down the attenuation speed of the battery service life in the direct current charging process and prolong the service life of the power battery.