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320 results about "Functional expression" patented technology

A Function Expression is created when the execution reaches it and is usable only from that moment. Once the execution flow passes to the right side of the assignment let sum = function… – here we go, the function is created and can be used (assigned, called, etc. ) from now on.

System and method for dynamic business logic rule integration

A system for dynamically integrating changes in rules governing business operations into a rule-implementing application program includes a dynamic business logic rule integrator (“DBLRI”) that provides rules to the application software as executable routines. The DBLRI presents to a user one or more GUIs through which the user writes functional-language expressions for the rules. The GUIs provide menus of associated functions, operators and parameters that are available for use. The set of parameters associated with a given GUI is dynamically updated, to correspond to changes in the underlying business logic rules. The user writes and / or edits the expressions by selectively combining the available functions, operators and parameters. The DBLRI evaluates the functional expressions and produces associated executable parse trees or DLLs, which the application software then calls at appropriate times. The DBLRI operates also with a dynamically configurable database that provides parameters required for the rules as the rules are updated, added and / or revised.
Owner:MILLENNIUM IT USA

Control device for electric power steering apparatus

A control device for an electric power steering apparatus, which controls a motor based upon a steering assist instruction value calculated in a steering assist instruction calculating section based upon a steering torque generated in a steering shaft and a current control value calculated from a current value of the motor for applying a steering assist force to a steering mechanism, and has a gain curve of characteristics of the entire control system having the steering assist instruction value as its input, which at least partially possesses a gradient exceeding a predetermined value, and in this arrangement, the steering assist instruction value calculating unit is composed of an approximation functional expression in which at least one-step derived functions are continuous, and the steering assist instruction value is found through calculations based upon the approximation functional expression. It is possible to provide a control device which can achieve a continuous, pleasant sense of steering by providing the steering assist instruction value as a continuous function.
Owner:NSK LTD

Multi charged particle beam writing apparatus and multi charged particle beam writing method

A multi charged particle beam writing apparatus includes a unit to calculate a predetermined function expression by a correction coefficient that corrects an open area of each opening for forming a beam group, wherein the predetermined function expression minimizes a sum of squared values of all the beam groups, where each of the squared values is calculated by squaring a difference between a current value measured of the beam group and a sum of products for the beam group, where each of the products is obtained by multiplying a corrected open area by the predetermined function expression; a unit to calculate the correction coefficient that corrects the open area by using the predetermined function expression and the current value of the beam, for each beam; and a unit to calculate a current density of each of the multiple beams by the predetermined function expression.
Owner:NUFLARE TECH INC

System and method for dynamic business logic rule integration

A system for dynamically integrating changes in the rules governing business operations into an application program that implements the rules in order to control business operations includes a dynamic business logic rule integrator (“DBLRI”) that essentially provides business logic rules to the application software as executable routines. The DBLRI presents to a user one or more graphical user interfaces (“GUIs”) through which the user writes functional-language expressions for the business logic rules. The respective GUIs correspond to various types of business logic rules, and provide to the user menus of associated functions, operators and parameters that are available for use. The set of parameters associated with a given GUI is dynamically updated, to correspond to changes in the underlying business logic rules. The user writes and / or edits the expressions for the respective business logic rules by selectively combining the available functions, operators and parameters. The DBLRI translates the functional expressions into executable routines by evaluating the corresponding expressions and producing associated executable parse trees or DLLs. The application software then calls the executable routines at appropriate times. The DBLRI operates also with a dynamically configurable database that provides various parameters required for the business logic rules as the rules are updated, added and / or revised.
Owner:MILLENNIUM IT USA

Energy-saving control method for self-adaptation frequency-conversion heat pump hot water heating system

The invention relates to an energy-saving control method for a self-adaptation frequency-conversion heat pump hot water heating system. The energy-saving control method is characterized by comprising the steps that a basic functional expression among a heat pump water supply calculating temperature, an indoor set temperature and an outdoor environment temperature is established, and the temperature difference between the heat pump water supply calculating temperature and an actual water return temperature is judged so that the heat pump water supply calculating temperature can be corrected; the heat pump water supply calculating temperature is corrected again on the basis of a first corrected functional expression according to the deviation between a stabilized actual room air temperature and a set indoor temperature; and the rotating speed of a compressor of a frequency-conversion heat pump water heater is adjusted according to the difference value between an actual water supply temperature and the heat pump water supply calculating temperature obtained through a second corrected functional expression, and therefore an actual water supply calculating temperature and the heat pump water supply calculating temperature tend to be consistent. The energy-saving control method has the beneficial effects that the heat preservation characteristics of different buildings and the differences of laying of hot water coils are taken into full consideration, the water supply calculating temperature is more accurate, and the energy-saving effect is also more obvious.
Owner:SHUNDE POLYTECHNIC

Assisted power controlling method for electric power assisted steering system

The invention discloses an assisted power controlling method for an electric power assisted steering system. The method includes the steps that a microprogrammed control unit (MCU) collects a torque signal and a vehicle speed signal of a steering wheel to calculate to obtain power assisted motor target electric current Im of the power assisted steering system and meanwhile, collects current actual electric current Ireal of a power assisted motor; stretch factors alpha (e) and alpha (ec) of an input domain and stretch factors Beta (e, ec) of an output domain are obtained by the aid of control thoughts of a varying domain and a functional expression; a fuzzy control unit is combined with stretch factors of the varying domain to obtain control parameter modification values delta Kp and delta Ki through fuzzy reasoning; the calculation is performed to obtain an incremental value of a duty ratio of pulse-width modulation (PWM) by an incremental PI algorithm, and the motor is controlled in a PWM driving mode to output power assisted torque. By means of the assisted power controlling method for the electric power assisted steering system, defects such as nonlinearity and multiple coupling of the electric power assisted steering system can be effectively overcome by the established fuzzy control strategy, the stretch factors can adjust the domains in an on-line mode, and adaptive ability and control accuracy of the system are improved.
Owner:CHONGQING UNIV OF POSTS & TELECOMM

Solar energy heat gain estimation and control method for heat pump and solar water heater combined system

The invention relates to a solar energy heat gain estimation and control method for a heat pump and solar water heater combined system. The method is characterized by comprising the steps that a functional expression of the temperature rise delta T of a water storage tank changing with time t, a solar radiation average value Ia in unit time, the average environment temperature ThP and the initial temperature TC of the water storage tank is established; a neural network model is established according to the historical hourly solar radiation sequence and the average environment temperature parameters, the temperature rise real-time condition of the water storage tank and the average environment temperature with estimation started for former 2-6 hours during operation of a hot water system on the application day are collected as network input, a temperature rise estimated value, output by the network model, of the water storage tank is input into a controller, and a total temperature rise value delta T' of the water storage tank is obtained; and the sum of the estimated total temperature rise value delta T' and the initial water temperature TC is the final temperature TZ, the difference delta T'' between the user set water temperature TS and the final temperature TZ is the required assisting heating amount by a heat pump water heater, and operation is stopped after the heat pump water heater completes assisting heating to the heat amount. The method has the advantages that the solar energy effective heat gain is estimated more accurately, the energy efficiency ratio is higher, and the energy-saving effect of the system is obvious.
Owner:SHUNDE POLYTECHNIC

Method for performing electromagnetic transient-state simulation to large power system

The invention discloses a method for performing electromagnetic transient-state simulation to a large power system. Firstly, equivalence is performed to an external system and specifically comprises the steps of sequentially obtaining sub-admittance rational functional expressions according to the sequence form an Mth sub external passive network to a first sub external passive network and finally obtaining a sub-admittance rational functional expression of the first sub external passive network to serve as a port admittance rational functional expression of the external system. An equivalent circuit of the external system is obtained through the port admittance rational functional expression of the external system. An external power supply is processed through the equivalent circuit of the external system to obtain an equivalent power source. After an equivalent system of an actual system is obtained, the electromagnetic transient-state simulation is performed to the equivalent system, harmonic waves and electromagnetic transient-state characteristics of a device and elements are detected through simulation results so as to judge whether the harmonic waves and transient-state components of the device, the elements and a local network are reasonable or not, if not, the electrical device is replaced, reasonable parameters are adjusted and corresponding measures are adopted, and if so, the process is finished.
Owner:TIANJIN UNIV

Frequency adjusting and control method for variable-frequency enhanced vapor injection heat-pump water heater

The invention relates to a frequency adjusting and control method for a variable-frequency enhanced vapor injection heat-pump water heater. The frequency adjusting and control method is characterized by comprising the adjusting steps that a, when a user selects a fast mode, the heat-pump water heater detects outdoor environment temperature T1 and the actual temperature T2 of a water tank, and the frequency of a compressor is adjusted with the actual temperature T2 of the water tank as a feedback object; b, when the user selects an energy saving mode, a controller detects the current actual temperature T2 of the water tank, and the needed total quantity of heat production within water using time t is calculated; c, when the heat-pump water heater works according to the frequency adjusting method of the step a and the step b, the opening degree of a main electronic expansion valve and an auxiliary electronic expansion valve is adjusted with the optimum energy efficiency ratio according to the compressor frequency, the outdoor environment temperature T1 and the water tank actual temperature T2 obtained through the experiment; d, the highest frequency allowed by the heat-pump water heater can be determined through an experiment method, and is preset in the controller in a functional expression or list mode. The frequency adjusting and control method has the advantages that that the variable-frequency enhanced vapor injection heat-pump water heater is made to work at the frequency close to the optimum energy efficiency ratio frequency point as much as possible, the opening degree of the main electronic expansion valve and the auxiliary electronic expansion valve is controlled with the optimum energy efficiency ratio, and energy is saved.
Owner:SHUNDE POLYTECHNIC

Method for preparing titanium implant and obtained titanium implant

The invention discloses a method for preparing a biomimetic titanium implant with a micro-nano composite structure on a surface and the obtained titanium implant. The method comprises the following steps: A) processing pure titanium or a titanium alloy into an implant substrate, performing surface polishing, performing ultrasonic washing by using acetone, absolute ethanol and deionized water in sequence, and drying; B) processing the surface of the substrate into a micro-nano structure by adopting a mixed acid ultrasonic treatment mode or a mechanical sandblasting treatment mode; C) oxidizing the surface of the micro-nano structure into a titanium oxide nanotube film in situ by adopting a constant-voltage direct-current anodic oxidation technology, so that the biomimetic titanium implant with the micro-nano composite structure on the surface is obtained. The biomimetic titanium implant disclosed by the invention can effectively increase the compatibility and the bonding capacity with bones, and is also favorable to the adhesion, the proliferation, the differentiation and the functional expression of cells, so that the osseointegration capacity and the operation success rate of the implant are improved.
Owner:SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI

Product for performing assisted prediction on postoperative survival time length of esophageal squamous carcinoma patient

The invention discloses a product for performing assisted prediction on postoperative survival time length of an esophageal squamous carcinoma patient. The product comprises substances for detecting 178 miRNA expression quantity substances comprising hsa-miR-218-5p, hsa-miR-142-3p, hsa-miR-150-5p and hsa-miR-205-5p, and records a carrier with the diagnostic criteria and functional expressions as follows: if 0.94dig is less than dip, the postoperative survival time of the esophageal squamous carcinoma patient to be tested is more than 5 years, and if the 0.94dig is more than or equal to dip, the postoperative survival time of the esophageal squamous carcinoma patient to be tested is less than 5 years. After the result of the postoperative survival time of the esophageal squamous carcinoma patient is predicted by using the product, more accurate and effective treatment is adopted, and the patient condition can be effectively improved. In addition, the medicine which influences the expression quantities of hsa-miR-218-5p, hsa-miR-142-3p, hsa-miR-150-5p and hsa-miR-205-5p can be used for treating the esophageal squamous carcinoma.
Owner:CANCER INST & HOSPITAL CHINESE ACADEMY OF MEDICAL SCI

Method for solving separable task multi-time scheduling model in distributed-type system

The invention discloses a method for solving separable task multi-time scheduling model in a distributed-type system. By establishing a new separable task multi-time scheduling model and utilizing genetic algorithm to solve the model, the shortest completion time of a task is acquired. A function expression of a task allocation scheme in regard to scheduling sequence of processors, scheduling times and number of the processors that participates in calculation is derived and further a separable task multi-time scheduling model with the shortest completion time the task as a goal is established. According to the invention, the genetic algorithm for solving the model provided by the invention can solve the best scheduling sequence of the processors, the scheduling times and the number of the processor that participates in the calculation, thus the best task allocation scheme and the shortest completion time of the task can be acquired.
Owner:XIDIAN UNIV
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