69results about How to "Achieving Process Stability" patented technology

The invention discloses a magnetic gold nanoparticle composite material, and a preparation method and application thereof. The preparation method comprises the following steps: synthesizing ferroferric oxide magnetic microspheres, adding tetraethoxyl silicon to implement hydrolysis and polymerization on the magnetic microsphere surfaces, adding N-(2-aminoethyl)-3-aminopropyltrimethoxysilane to obtain surface-modified double-amino-group Fe3O4 / SiO2 magnetic microspheres, and compounding the surface-modified double-amino-group magnetic microspheres with gold nanoparticles. The chelation action of the double amino groups is utilized to adsorb the gold nanoparticles more firmly; and the material combines the surface selectivity of the gold nanoparticles and the superparamagnetism of the magnetic nanoparticles, can extract benzopyrene in water, and can implement quick and efficient separation.

An optical apparatus includes a lens frame 12 which holds a focus correction lens 11a and is movable in an optical axis direction, optical axis direction position detectors 19a to 19c which are arranged on one of the lens frame 12 and a supporting portion 13 inside a barrel and detect signals in accordance with a distance to the other one, driving portions 112a to 112c and coils 17a to 17c (driver) which drive the lens frame 12 in the optical axis direction, an optical axis direction movement limiting member of the lens frame, and a lens CPU 1204 (controller) which controls the driver so as to suppress a tilt of the focus correction lens 11a based on a signal detected by the optical axis direction position detectors 19a to 19c whose sensitivities have been calibrated in association with the driving portions and the optical axis direction movement limiting member.

The invention discloses an elevator equipment state monitoring system based on the large data technology. The system comprises a data collection unit, a communication system unit, a data diagnosis platform and a visual display unit. According to the system, a data collection device installed on a site collects elevator running state data, then the real-time data are pushed to an openPlant real-time database, the collected data are efficiently compressed and historically stored for a long time, and a client side application convenient and easy to use and a universal data interface are provided at the same time; by means of a high-speed two-way data transmission mechanism, on the one hand, multi-target elevator equipment real-time monitoring mass data are uploaded to a monitoring center; on the other hand, feedback and early warning for diagnosis results are achieved. By means of the data visual technology, transmission and communication interaction is effectively and clearly achieved, key information is more easily understood, more easily monitored effectively, and more visually transmitted, and therefore deep insight is achieved for a redundant and complex data set.

The image processing apparatus of the present invention comprises signed distance calculation unit calculating signed distance fields from each input 3D shape data, signed distance integration unit integrating all the signed distances calculated by signed distance calculation unit for each shape data, classification unit classifying each voxel to be outside of the observed object, near the surface of the object or the other, estimation unit estimating whether voxel is inside or outside of the object, and determination unit determining voxel to be inside, outside or near-surface of the object based on the calculation results of the previous units.

The present invention provides a substrate, an optical fiber connecting end member, an optical element-housing member, a light module, and a manufacturing method of the substrate. The substrate has a feature that can be stably realizable and having a simple structure and that a light waveguide formed on the substrate surface or an optical element formed thereon can be connected without core alignment to an optical element provided on the optical fiber of the optical fiber connector to be connected to the optical fiber connecting end member. The substrate of the present invention is characterized in steps 5 for positioning being formed on at least one side of the substrate 1 that provides the optical waveguide 4.

The present invention discloses a parallel sampling system basing on the super-wideband which is projected randomly, and the invention mainly settles the problem of complex realization and no suitability for processing the common super-wide band in the homogeneous system. The system is mainly composed of a function generating module, a parallel sampling module and a linear operating module. In the system the function generating module adopts a pseudorandom sequence generating module for generating a group of pseudorandom sequence for inputting to the parallel sampling module. The parallel sampling module realizes the projection operation of the upper-wide band analog signal on the self-contained pseudorandom space and obtains the digital projection coefficient signal for inputting to the linear operating module. The linear operating module adopts the M-input and M-output linear structure and conveys the output projection coefficient signal of the parallel sampling module to the parallel digital sampling signal and then outputs. The invention has the advantages of low complexity in the circuit operation, being easily realized and broad applying sphere. The invention can be used for executing digitization sampling processing to the super-wideband signal.

This invention discloses a kind of individual ring business platform and realization method in telecommunication system. This platform includes colorful ring business node, colorful ring server, interactive voice answer equipment and so on. It used for many communication network, including fixed telephone network, mobile telephone network. The system uses 'FA' user group promotion technique, dual-ring technique, and realizes individual ring business rapidly and steadily. The business includes the following steps: check the phone call, MSC calls the user and colorful ring CRBT individual ring business system at the same time. The CRBT system answers the MSC immediately after receiving the call, and broadcasts customized individual ring.

The invention provides a plug-in extension device. The plug-in extension device comprises an interface creating unit, an extension point definition unit and an extension control unit, wherein the interface creating unit is used for creating at least one static extension service interface in an application development platform based on OSGi (Open Service Gateway Initiative); the extension point definition unit is used for defining extension points; and the extension control unit is used for invoking the static extension service interface and realizing the extension of plug-ins basing on the extension points. The invention also provides a plug-in extension method. According to the technical scheme provided by the invention, the dynamic extension of the plug-ins can be realized under the condition without restarting a system; and an extension process is more stable as the using of a boot file is not needed.

The invention discloses a transmission device of a breaker hand and an electric integrated operating mechanism. The transmission device comprises a box body, a motor, a manual shaft and an output shaft, wherein the output shaft is rotatably provided with a transmission wheel, the transmission wheel is connected with the motor in a transmission mode, the output shaft is provided with a clutch in an axially sliding mode, the clutch is provided with an axial hole and is in key joint with the output shaft, one end face at one end of the clutch is meshed with an end face of the transmission wheel, the end face at the other end of the clutch is meshed with a drive disc fixed at one end of the manual shaft, and a spring is arranged between the drive disc and the clutch. According to the transmission device of the breaker hand and the electric integrated operating mechanism, conversion of intermediate energy is achieved through the clutch both in manual operation and electric operation, and the transmission device is simple in structure, easy to achieve, convenient to install, stable and reliable in transmission, compact in structure and small in size.

The invention discloses a mobile robot embedded laser SLAM method and system. The method comprises a step of building a robot operating system in an embedded development board in a mobile robot, a step of remotely connecting a personal computer to the embedded development board through a wireless network, inputting a command to start the robot operating system, and allowing a robot to driving a circuit board and a laser radar, a step of obtaining sensor data by the laser radar, the embedded development board, an inertial measurement unit, a DC motor and a magnetoelectric encoder, a step of creating a map with the combination of an SLAM algorithm in the embedded development board through the sensor data and uploading the map to the personal computer, and a step of observing the created mapthrough a personal computer and saving the map. Since the robot operating system is built in the embedded development board, after a network is connected, the SLAM algorithm can directly operate in it, thus the cost of the mobile robot is reduced, the system flexibility is improved, and the realization of SLAM is more stable and visual.

An optical transmitter for modulating light from a light source to generate an optical transmission signal with use of a data sequence as an electric signal, the optical transmitter including: a mapping section for mapping the data sequence to be converted into multi-level data based on modulation multi-level degree information indicating multi-level degree of the modulation; a D / A converter for converting the multi-level data output from the mapping section into an analog signal; an optical modulator to be driven based on the analog signal output from the D / A converter, for modulating the light from the light source; and a bias control section for setting control polarity of DC bias control of the optical modulator based on the modulation multi-level degree information.

A magnetic recording medium comprising: a support; an under layer comprising at least one of a metal and an alloy; and a granular magnetic layer comprising ferromagnetic metal particles and a nonmagnetic oxide, wherein the magnetic recording medium has a surface resistivity of from 1 to 100 Ω / □.

A method and a device for calculating that lowest frequency of a power system in the absence of high power are disclosed. The method comprises a construction step, Simplify Steps Once, Secondary Simplified Steps, Resolution Steps, Combined with the content of primary frequency modulation in frequency control system, the physical process of frequency response is analyzed, qualitative analysis of the frequency change trend after disturbance, the frequency response equivalent model of multi-machine system is constructed. Two simplification methods, frequency feedback loop decomposition and frequency response characteristic fitting, are used to simplify the complex multi-machine system. The time domain expressions of the lowest frequency and its corresponding time are derived by analytic method, Simple and practical calculation of the lowest frequency of the power system, and then through quantitative analysis to achieve better coordination with the relay protection, improve the frequencyresponse of the execution speed, change the frequency fluctuation transient process, so as to avoid the occurrence of low-frequency load shedding and other accidents, to better ensure the frequency stability of the system, to maintain the stability of the operation of the power system.

In a screen device, a pair of vertical rails 24 arranged on the front and back sides of a screen 8 so as to oppose to each other are connected by connecting members 30 and are fixed between a pair of sliding guide frames 10a and 10b with the intermediary of the screen. The connected vertical rails are integrally slidable in the direction parallel to the direction of sliding movement of a screen mounting frame, so that the screen is restrained from being deflected even when it receives a wind pressure in the closed state when the width in the opening and closing direction is large.

The invention relates to the technical field of pressure swing adsorption decarburization and discloses a novel saturation adsorption process of pressure swing adsorption decarburization and a device thereof. According to the process, CO2 gas in raw gas is adsorbed and removed by adsorbents in adsorption towers which are arranged in parallel, so as to obtain purified gas. Each circulation of the process comprises adsorption, uniform pressure drop, recycling, vacuumization, uniform pressure rise, isolation and final boosting, wherein the adsorption includes front adsorption, adsorption and back adsorption; the front adsorption specifically comprises the steps of inputting the output gas at the stage of the back adsorption of other adsorption towers and outputting the purified gas; the adsorption specifically comprises the steps of inputting the raw gas and outputting the purified gas; the back adsorption specifically comprises the step of outputting gas which exceeds the indexes of the purified gas, so as to be used as the input gas of the front adsorption or the final inflated gas of the final boosting; the final boosting comprises the step of boosting the adsorption tower by adopting the gas which exceeds the indexes of the purified gas and is output by the back adsorption of other adsorption towers. The novel saturation adsorption process has the advantages of high CO2 absorptivity, less loss of effective constituents in the gas and the like.

The invention discloses a method for acquiring linkage information in database safety audit. A database audit system in the method acquires a user address in a bypass packet capture mode, then, user information is inquired in a system table of a database, and thus the query result is linked to the current linkage. With the method, a linkage user can be effectively identified, the risk of information leakage is avoided, and the method can be achieved easily and stably.

The invention provides an aircraft simulation system of a flight simulator. The aircraft simulation system is composed of a simulation platform and a piece of simulation software. The simulation platform is composed of a host computer and a target computer. The host computer provides a Windows Xp environment, and selects a Tornado 2.2 real-time development environment. The simulation platform adopts an embedded multi-task operating system VxWorks 5.5 as the operating system on which the aircraft simulation software relies for running. The simulation software is aircraft simulation software developed through C language and C++ mixed programming and adopts a modular structure and a multi-task and single-rate simulation mode, and the simulation cycle is 10 milliseconds. Software modules include a real-time management module, a flight performance simulation module, an aircraft system simulation module, a weapon simulation module and a network management module. The operating system of thesimulation system occupies fewer system resources and runs stably. The design and implementation of a software model are fast, and the reliability is high. The requirements of flight training and program training of pilots in full envelope can be satisfied.

The invention discloses an ultra-wideband digital phase shifter. The phase shifter comprises a coupler and first and second impedance networks. The coupler is formed by spiral inductive coupling units through cascading. Each spiral inductive coupling unit comprises a first spiral inductor and a second spiral inductor which are mutually coupled. Multistage cascading of all the spiral inductive coupling units is realized by series connection all the first spiral inductors and series connection all the second spiral inductors. Coupling distance or microstrip line width of all the spiral inductive coupling units of the coupler gradually reduces from the external part to the internal part. The impedance networks are realized by adopting LC circuits and switch elements, and the state of the impedance networks is switched by the switches so that phase shifting is generated, and thus the structure is reasonable and realization is easy. The phase shifter is compact in structure, small in area occupation and great in wideband characteristics so that the phase shifter has great advantage and application space in an integrated chip application.

The invention provides an integrated control system of cement clinker, waste heat power generation and steam turbine safety protection, in particular a plant control system that integrates cement clinker DCS, waste heat power generation DCS and steam turbine safety protection DEH and ETS. The invention is characterized in that the integrated control operating system with a same database, a same data industrial Ethernet, same DCS / PLC software, same software compatible DCS / PLC hardware and a same human-computer interface realizes local operation and overall monitoring of the whole plant through data sharing and network sharing so that production and equipment operate safely and efficiently so as to reduce the fixed number of workers and the labor intensity.

The invention relates to a rapid calibration method for hot-rolled coiled side guide plates. The rapid calibration method comprises the following steps of: mounting displacement sensors for detecting the displacement of the side guide plates in cylinders of the two side guide plates; mounting a calibration device in a positioning hole of a roller way between the two side guide plates; pulling out telescopic rods on the two sides of the calibration device, and pressing the telescopic rods against the two side guide plates; and checking the length of the telescopic rods and transmitting measured data to a programmable logic controller (PLC). The method can be used for reducing the calibration time of the coiled side guide plates and ensuring the coiling quality.

A motor control device that has a high-frequency component, and a DC bias component that has a magnitude which causes a motor to be magnetically saturated and take on a certain value over a predetermined period, and is positively and negatively symmetrical are impressed as an observation command on a d-axis current command. The polarity of the magnetic pole of a permanent magnet is identified based on a relationship of large and small magnitudes between a first amplitude, which is attained during a period during which a DC bias component takes on a positive certain value, among amplitudes of a high-frequency component contained in a d-axis response voltage computed based on a feedback current respondent to the observation command, and a second amplitude attained during a period during which the DC bias component takes on a negative certain value.

The invention relates to an accurate shape correction control device and method for a thin-wall barrel conical part, in particular to an accurate control device and method for the inner diameter size of a titanium alloy barrel cone composite component. The problems that as the thermal contraction of all parts is not consistent after hot spinning forming of the titanium alloy thin-wall component is finished, deviation of the coaxiality, roundness and shape accuracy is caused, the geometric accuracy of a workpiece is lowered, the stress distribution is not uniform when the titanium alloy thin-wall component serves as a force bearing component, and the use intensity is lowered are solved. The accurate control device comprises a thrust augmentation rod, a conical mould, a cylinder, a thrust augmentation ring, a thrust augmentation plate and a nut, wherein the thrust augmentation rod is sequentially sleeved with the conical mould, the cylinder, the thrust augmentation ring and the thrust augmentation plate from a stop end to a threaded end, one end of the cylinder is arranged on a straight barrel section in a sleeving mode, the other end of the cylinder is tightly attached to the inner wall of the thrust augmentation ring, the thrust augmentation plate abuts against the thrust augmentation ring, and the nut is screwed to the threaded end of the thrust augmentation rod. The accurate control device and method are used for accurate control over the inner diameter size of the titanium alloy barrel cone composite component.

The invention relates to a central heating-to-the-home water inlet pipeline temperature monitor and use method thereof. The monitor comprises an LED work indicating lamp, a microprocessor, an analog-to-digital converter, a temperature sensor, a displayer, a time calibration circuit, an ROM storage area and a USB interface. The monitor has the advantages of realizing measurement, real-time display and data storage of the temperature, and realizing the purpose of long-time monitoring of the temperature of a central heating-to-the-home water inlet pipeline; stable hardware circuit implementation and reliable software implementation are achieved; manual recording and maintenance are not needed in a long measurement period (heat supply period of a year); and a system is simple to operate.

The invention provides a control method of electronic expansion valves and a heat pump system. The control method of the electronic expansion valves comprises the steps that the heat pump system is started; the current opening degree Bk of each electronic expansion valve is calculated once in the adjusting period delta T of the electronic expansion valve, and the opening degree of each electronicexpansion valve is adjusted according to the calculated current opening degree Bk, so that the actual exhaust superheat degree SH of the heat pump system is actually stabilized at the target exhaust superheat degree SH of the heat pump system; and the adjusting period delta T is actually optimized according to the actual exhaust superheat degree SH of the heat pump system in the operation process,and the current opening degree Bk is calculated according to the optimized adjusting period delta T. By means of the control method of the electronic expansion valves, the problem that the control method of the electronic expansion valve in the prior art cannot be suitable for all working conditions, and consequently an air conditioning system always oscillates at low temperature or high temperature is solved.

The invention discloses a high-extinction ratio optical pulse generation method suitable for a CVQKD system. Continuous light generated by a laser enters a BS through a CIR, and then is divided into two beams BS3 and BS4 according to an intensity splitting ratio; an optical signal output from BS3 is rotated and transmitted clockwise through a loop, then returns to a polarization-maintaining optical coupler BS through BS4, and then is divided into two beams S341 and S342; the optical signal output from BS4 is rotated and transmitted counterclockwise through the loop, then returns to the polarization-maintaining optical coupler BS through BS3, and then is divided into two beams S431 and S432, wherein the interference results of S341 and S431 are output from CIR3 to the Port 2, and the interference results of S342 and S432 are output from BS2 to the Port3. Compared with the prior art, the scheme of the invention has the positive effects of low cost, simple and reliable implementation, frequency multiplication and extremely high extinction ratio.

The invention provides a photovoltaic system maximum-power-point tracing and optimizing method. The method includes the steps of firstly, obtaining a photovoltaic array mathematic model according to a photovoltaic cell equivalent circuit, and establishing a target function and a constraint function; secondly, establishing a Lagrange function according to the target function and the constraint function, solving the Lagrange function, and determining the search direction dk and the Lagrange multiplier lambda k of the Lagrange function; thirdly, conducting searching according to the improved Armijo criterion, determining the compensation factor of voltage at the maximum power point, and calculating a new iteration point; fourthly, renewing a Hessian matrix if the voltage convergence discrimination does not meet the end condition till the optimal voltage solution at the maximum power point is obtained. By means of the method, the problems that a classical maximum-power-point tracing method neglects external condition changes, is prone to oscillation at the maximum power point and is complex to implement can be solved. Power loss caused by external environment changes can be reduced, and rapid, stable and accurate tracing of the voltage at the maximum power point is achieved.

The invention discloses a cloud push system. The cloud push system comprises a network layer which is responsible for the network connection between a server and a client as well as between the server and web, a logical layer which is responsible for the reception and sending of client and web message receipts and the logics of responses to various types of messages, an HTTP module which is used for requesting the web and downloading pushed files and data, a REDIS module which is used for performing corresponding access on data in redis, an MYSQL module which is used for accessing data in an mysql database, and an Appstore module which is used for uploading a push message of ios to the AppStore, and pushing the push message to the client through the APNS service of the AppStore. Through adoption of the cloud push system, a mobile phone application developer can access a push function rapidly; the development cost is saved; the efficiency is increased; cross-device and cross-application message push is realized rapidly and stably; and the technical effects of high concurrency and small delay are achieved.

A semiconductor device manufacture method includes the steps of forming a resist layer above a work target layer; exposing and developing the resist layer to form resist patterns including isolated pattern and dense patterns; monitoring widths of isolated and dense pattern of the resist patterns to determine trimming amounts of linewidths to be reduced; determining etching conditions for realizing the trimming amounts of both the isolated and dense patterns, the etching conditions using mixed gas of a gas having a function of mainly enhancing etching and a gas having a function of mainly suppressing etching; trimming the resist pattern under said determined etching conditions; and etching the work target layer by using said trimmed resist patterns. A desired pattern width an be realized stably by trimming using plasma etching.