78 results about "Efficiency factor" patented technology

Methods and systems are described for improved drilling operations through the use of real-time drilling data to predict bit wear, lithology, pore pressure, a rotating friction coefficient, permeability, and cost in real-time and to adjust drilling parameters in real-time based on the predictions. The real-time lithology prediction is made by processing the real-time drilling data through a multilayer neural network. The real-time bit wear prediction is made by using the real-time drilling data to predict a bit efficiency factor and to detect changes in the bit efficiency factor over time. These predictions may be used to adjust drilling parameters in the drilling operation in real-time, subject to override by the operator. The methods and systems may also include determining various downhole hydraulics parameters and a rotary friction factor. Historical data may be used in combination with real-time data to provide expert system assistance and to identify safety concerns.

A method and apparatus are provided for managing work granules being executed in parallel. A task is evenly divided between a number of work granules. The number of work granules falls between a threshold minimum and a threshold maximum. The threshold minimum and maximum may be configured to balance a variety of efficiency factors affected by the number of work granules, including workload skew and overhead incurred in managing larger number of work granules. Work granules are distributed to processes on nodes according to which of the nodes, if any, may execute the work granule efficiently. A variety of factors may used to determine where a work granule may be performed efficiently, including whether data accessed during the execution of a work granule may be locally accessed by a node.

The invention provides a submarine target three-dimensional positioning method. The positioning method comprises the following steps of: adopting more than three array elements to form a distributed array with space scale, receiving a pulse signal sent by a submarine target, carrying out combined treatment on the impulse sequence obtained by the pretreatment on each array element, and firstly eliminating interfering impulse; distinguishing direct sound, sea surface or sub-bottom reflection voice; and under the condition that more than three array elements are distinguished to receive direct sound impulse, selecting three elements with upmost efficiency factors, and carrying out ball convergence so as to obtain a three dimensional coordinate. The key technology content of the positioning method provided by the invention is that multiple array elements combine and distinguish the impulse type, the sea surface and sub-bottom reflection voice information are reserved simultaneously and used as a virtual matrix element so as to receive a direct sound signal, and the convergence of the spaceball surface is utilized to determine a target three dimensional coordinate; the positioning method provided by the invention fully utilizes the multi-path characteristics of a water sound channel, ensures to carry out accurate positioning under losing direct sound or failing to report, and has higher robustness and use value; and the positioning method provided by the invention is more suitable for the three-dimensional positioning of a short base line short-range cooperative target.

A system and method for providing an efficient video-on-demand (VoD) service using unicast/multicast in an Internet Protocol (IP) network are provided. A VoD service system includes a multicast efficiency factor (MEF) checking unit to check an MEF in content in response to a request for the content from a client, and a content transmission unit to multicast or unicast the content over a network depending on the checked MEF. Here, the MEF includes an indicator of efficiency for multicast transmission relative to unicast transmission of the content.

The invention discloses a cold-rolled sheet shape control self-learning method based on an optimum algorithm, which includes the steps: by means of gradually and iteratively computing through iterative formulas to approximate an optimum value, enabling an L1 CPU (central processing unit) sheet shape control self-learning program in online application to timely obtain a precise learning sample; and optimizing efficiency factors Pj<u+1> [i] of all plate shape control mechanisms including a back-up roll inclining mechanism, an intermediate roll bending mechanism, a working roll bending mechanism and an intermediate roll traversing mechanism of a rolling mill according to the learning sample, wherein the efficiency factors gradually tend to the optimum value along with increase of self-learning times, and in the self-learning process, the efficiency factors do not increase sharply, therefore computing precision of action regulating quantity of all the sheet shape control mechanisms is improved. By the aid of the cold-rolled sheet shape control self-learning method, optimized schedule of the efficiency factors of all the sheet shape control mechanisms is accelerated, and the advantage of the method on improving the computing precision of the efficiency factors of all the sheet shape control mechanisms is given full play, so that the sheet shape control program is benefited to improve the computing precision of the action regulating quantity of all the sheet shape control mechanisms in real time.

The invention discloses an artificial bee colony algorithm-based intelligent partition storage method for moulds. The method comprises the following step of: aiming at a partition storage optimizationproblem of moulds, firstly carrying out generalized description on solutions for three parts such as energy consumption, efficiency and quality, wherein the energy consumption problem is mainly embodied in that the consumed energy off goods is ensured to be relatively small in the ex-warehouse process and stackers need to act less; the efficiency factor is generalized as follows: only when the positions close to goods shelf throats are distributed to the moulds with high warehousing frequencies to the greatest extent, the overall operation time of the stackers can be shortened and the ex-warehouse and warehousing efficiencies of the moulds are improved; and through analyzing inconvenience caused by the quality factor, the goods allocations need to be optimized to ensure that the gravity center of the goods shelves are reduced, thereby achieving the aim of stabilizing the goods shelves.

The invention discloses an energy management control strategy of a multi-mode hybrid electric vehicle based on energy efficiency maximization, which is divided into two layers. The inner layer is an efficiency normalization maximization strategy, which is based on the efficiency analysis method of the global normalization efficiency factor. It is used to calculate the optimal energy distribution law, and can deal with the energy efficiency optimization problems of the hybrid mode and the pure electric mode at the same time. The outer layer is a dynamic programming, which is used to deal with the mode switching problem of multi-mode hybrid electric vehicle, and to solve the optimal mode switching commands, which can make the optimal mode switching control commands on the premise of avoidingfrequent shifting and shifting energy loss and improving the smoothness of shifting. The outer layer and the inner layer coordinate with each other to form a near-optimal energy management control strategy NEMS +, which is suitable for multi-mode hybrid electric vehicle. This method not only realizes the optimization of energy management control strategy, but also guarantees the smoothness of mode switching and the reasonable mode switching frequency.

The invention relates to an antenna error correction method of a space-borne microwave radiometer, and belongs to the field of microwave remote sensing. According to the antenna error correction method of the space-borne microwave radiometer provided in the invention, the calibration error and the earth brightness temperature observation error introduced by the limited antenna beam efficiency canbe corrected; a space area is divided into two parts including an earth area and a cold air area in a satellite orbit coordinate system; in a condition that the satellite attitude factor influence isconsidered, the coordinate of the arbitrary point in the space in the antenna coordinate system under the satellite orbit coordinate system can be obtained by utilization of a rotation matrix method;then, integration is separately carried out in the earth area and the cold air area, so that antenna beam efficiency factors corresponding to the earth observation and the cold air area are obtained;the earth observation brightness temperature and the cold air calibration brightness temperature are separately corrected; and thus, the brightness temperature measurement precision of an instrument is improved.

The invention discloses a method for analyzing efficiency factors of an oil pumping well system. The method comprises the steps of determining influence factors; by calculating correlation degrees and weight coefficients of the influence factors, determining a correlation order of the influence factors relative to the efficiency of the oil pumping well system; determining evaluation indexes of an oil pumping well, and defining comparison references of the evaluation indexes; calculating membership degrees of the evaluation indexes corresponding to the influence factors; and by comparing the membership degrees and the corresponding comparison references, determining relationships between the corresponding influence factors and the efficiency of the oil pumping well system. According to the method, the influence of specific parameters on the efficiency of the oil pumping well system can be analyzed by determining the relationships between the specific influence factors and the efficiency of the oil pumping well system; and a quantitative evaluation index system for the influence factors influencing the oil pumping well system is established, so that the parameter adjustment and optimization of the oil well can be guided in site and the oil pumping system is finally enabled to run efficiently.

The invention relates to an OFDM system which can be rebuilt, wherein in said system, using received pilot signal, estimating the maximum time delay extending mean square root and Doppler frequency shift of said signal channel, based on which, fixing the upper and lower limits of time period of OFDM mark and finding the period; the CP controllers of sender and receiver, based on the signal channel band width, the OFDM mark period and the band width efficiency factor, fixing the modulate carrier wave number of OFDM mark, the total sub carrier wave number and the sub carrier wave number occupied by the cycle prefix; using obtained OFDM parameter, controlling the operations of sender and receiver. The inventive system can self-adaptive adjust the cycle prefix and sub carrier wave, to improve the system frequency efficiency.

The invention relates to a signal-noise ratio adjusting method of special physical control channel DPCCH, wherein it comprises that: selecting signal transmission efficiency factor of signal channel, to set threshold; obtaining said parameters; comparing the parameters with threshold, if the parameter do not meet threshold, obtaining SIR target value from RNC; then based on refreshed SIR target value, adjusting the SIR of special physical control signal channel. The invention leads in signal transmission efficiency factor in SIR adjustment as adjustment reference, to represent SIR of HS-DPCCH channel, to make SIR meet special channel quality and the demand of transmission efficiency, to avoid repeated transmissions.

The invention belongs to the field of air conditioning equipment, and particularly provides a control method of a heat pump unit. The invention aims to solve the problem that an energy efficiency factor is not considered in the existing control method of the heat pump unit during adjustment of the opening aperture of a throttling valve. The control method comprises the following steps: obtaining an air suction superheat degree of a compressor; and comparing the air suction superheat degree with a preset range, and then controlling an operation opening aperture of the throttling valve in selective combination with a difference between water feeding temperature and water discharging temperature of the heat pump unit according to a comparison result of the air suction superheat degree and the preset range. Therefore, the throttling valve can select different control methods according to different working conditions, and the opening aperture of the throttling valve can be set to be the optimal operation opening aperture, so that the heat pump unit can generate the maximum energy efficiency to ensure that the heat pump unit can keep an efficient operation state all the time.

A method for feeding back a Channel Quality Indicator (CQI) in a mobile communication system is provided. The method includes determining a number of subchannels for which the MS feeds back CQIs based on a preset feedback efficiency factor, selecting the determined number of subchannels in a descending order of channel quality, and feeding back the CQIs of the selected subchannels to a Base Station (BS).

Systems, methods, and apparatus are disclosed for wirelessly charging an electric vehicle. In one aspect, a method of wirelessly charging an electric vehicle is provided. The method includes, obtaining a request from the electric vehicle for a level of charging power to be delivered from a power transmitter to the electric vehicle via a charging field. The method further includes controlling a current or voltage of the power transmitter based on a power efficiency factor and the requested level of charging power.

The invention provides a construction method for treating soft groundwork surface layer by using bamboo web. Bearing forces of different soil cover thickness are elevated by a flat-plate loading test,and interrelation of allowed bearing forces is educed according to construction equipment, reinforcing material and soil cover thickness, by analyzing allowed bearing forces by using theoretical formula, applicability of the theoretical formula in existence and efficiency factor of the bamboo web construction method are analyzed, which are used as base data of economic and safe surface layer treating construction method. The method comprises steps of: designing the bamboo web based on design scheme of the invention; arranging the bamboo web on soft groundwork based on soil cover thickness ofthe bamboo web designed with proper interspace according to the design scheme, building in border piles on at least a corner of the bamboo web; paving construction fibre for separation on the bamboo web; paving soil sand on the construction fibre for separation to form cover soil layer; paving sand on the cover soil layer to form sand soil layer; carrying out flat-plate loading test on the soft groundwork to affirm bearing force of the groundwork.

The invention relates to a returned sludge separation process improving the sewage treatment dephosphorization and denitrification efficiency, and belongs to the new sewage treatment technology. The returned sludge separation process has the specific contents that: firstly, sludge at the bottoms of two settlement tanks flows inversely, and the sludge return flow R(R is equal to Qr/Q) is controlled between 50 and 85 percent; secondly, the return flow sludge enters into a cavitation air concentration treatment system for performing the concentration and the separation, and is separated into two parts of supernatant fluid and concentrated sludge. The process needs the concentration percentage f (f is equal to Qr/Qs) of the cavitation air concentration separation process to be controlled between 2.5 and 3.2, and requires the suspended solid concentration in the supernatant fluid not to be more than 550 mg/L; thirdly, the separated supernatant fluid singly flows inversely to an oxygen-poor tank for the denitrification, the concentrated sludge flows directly and inversely to an anaerobic tank. The returned sludge separation process of the invention can effectively improve the removal efficiency of nitrogen and phosphorus in the sewage treatment process with stable operation, and easily utilize the existing wastewater treatment process to be changed and realized; meanwhile, the investment is small, and the operation cost is low.

The invention provides a method and device for scheduling policy selection in a heterogeneous network. An m*3 matrix is established, each line of the matrix represents a scheduling request, the first column of the matrix is fairness factors, the second column of the matrix is efficiency factors, and the third column of the matrix is matching factors; the established matrix is normalized; the normalized matrix is weighted according to a weight vector so that a weighting matrix can be obtained; a positive ideal solution and a negative ideal solution are determined according to the weighting matrix; a positive ideal distance and a negative ideal distance are calculated; relative proximity is calculated according to the positive ideal distance and the negative ideal distance; sequencing is conducted according to the relative proximity, a scheduling sequence is determined, and scheduling is conducted according to the scheduling sequence. According to the current network capacity situation, fairness, efficiency and service QoS are comprehensively considered, scheduling selection is conducted, the throughput capacity of a system is guaranteed, and meanwhile the fairness of the system and the matching performance of service QoS are improved.

A system and method for calculating a space required for a tenant in a building includes determining the areas of rooms required by the tenant. A circulation factor for each of the rooms based on the area of each room is calculated. The total of the room areas and the circulation factors are added to determine a pure space required by the tenant. The losses in actual usable space are determined for a building and an inefficiency factor is calculated based on these losses. The pure space is multiplied by the inefficiency factor to obtain a building efficiency loss. The building efficiency loss is added to the pure space to obtain the space required for the tenant in the building. The system may be configured on a network computer system or a standalone computer.

The invention discloses an alternator type dynamometer system for an aeroengine. The system includes an alternator, an aeroengine accessory shaft power adjusting control system and a motor efficiencytest platform, wherein the alternator is driven by an aeroengine for power generation, the amount of power generated is controlled and measured by the aeroengine accessory shaft power adjusting control system, the energy is ultimately consumed by the resistive load heat, and the motor efficiency measurement platform provides motor efficiency for the system. The system is characterized in that thealternator mounted in a high speed suspension mode is utilized to set and measure the aeroengine accessory output shaft power by motor loading, the power of the aircraft accessory output shaft can beset and measured, in combination with an accessory efficiency value, the real power of the engine output is completely transmitted, a problem of evaluation distortion under the engine power extractioncondition caused by increase of the engine working load due to decrease of an efficiency factor in the long-term operation of the accessory is solved. The system is advantaged in that the system belongs to the field of military and civilian general-purposes and the aeroengine accessory loading test technology, and the research technology can be applied to the aeroengine power extraction test.

Disclosed is a method and device for a contrasting carbon dioxide-foam flooding displacement stage. The method for the contrasting carbon dioxide-foam flooding displacement stage is characterized in that based on an actual mine situation to be simulated, the cut-off time node of water flooding of a laboratory experiment is determined according to the water flooding recovery efficiency factor of amine field before performing carbon dioxide-foam flooding, namely, the degree of reserve recovery during a water flooding stage; when a carbon dioxide-foam flooding contrasting experimental scheme iscarried out, the error range of the degree of reserve recovery in the water flooding stage needs to be controlled within +/- 0.01%, so that the remaining oil saturation before the start of the carbondioxide-foam flooding stage is remained consistent on the basis of water flooding in a laboratory; and then, carbon dioxide-foam flooding contrast experiments are carried out, according to the increased range of the degree of reserve recovery of the carbon dioxide-foam flooding stages in all contrast experiments, carbon dioxide-foam flooding parameters or an optimal carbon dioxide-foam flooding scheme are optimized to achieve effective contrast.

The invention is applicable to the technical field of power grid asset evaluation, and provides a power grid asset safety performance evaluation method and device in a full life cycle. The method comprises the following steps: establishing an initial cost index within the whole life cycle of power grid assets, the initial cost index being a cost index which does not comprise a safety factor coefficient and an efficiency factor coefficient; establishing an efficiency index according to the power supply reliability coefficient and the voltage qualification rate coefficient, and establishing a safety index according to the accident safety coefficient; and according to the initial cost index, the efficiency index and the safety index, establishing a safety efficiency evaluation model of the power grid asset in the whole life cycle. According to the method, safety and efficiency factors are comprehensively considered for evaluating the economic efficiency of the power grid assets, and the evaluation precision of the power grid assets in the whole life cycle is improved while the effectiveness of safety efficiency evaluation is ensured.