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 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 invention relates to a method for realizing shaft and hole mating with high accuracy by low-accuracy robot, comprising following steps. (1) bowl constraint field is found in high dimension space of six-dimension space of shaft and hole; (2) positive output signal of the bowl constraint field and the robot without any feedback is used to make the shaft and hole system arrives the state corresponding with the presetting special point of bowl constraint field so as to decrease errors of position and angle; (3) the field formed by the special point in new space is original field to find the new bowl constraint so as to eliminate errors of position and angle furthermore until the shaft inserts into the hole.

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.

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/□.

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 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.

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.