82results about How to "Reduced post-processing time" patented technology

The invention discloses a remote sensing image airplane detection method based on fusion of angle points and edge information. The method comprises the following steps of: executing edge detection on a remote sensing image; performing binarization on the detected remote sensing image; executing Harris angle point detection on the binarized remote sensing image; selecting regions in which the number of the angle points is in a predetermined range as candidate airplane regions; removing false target regions according to the number of bright pixels in each candidate airplane region; clustering the obtained image and marking a target airplane position, thus finally obtaining the number of obtained clusters and a central position of each cluster, wherein the number of the obtained clusters is the number of detected airplanes, and the central position of each cluster is the central position of a target airplane. The invention further discloses a remote sensing image airplane detection system comprising an edge connection unit, a binarization processing unit, an angle point detection unit, a candidate airplane region selection unit and a clustering unit which are orderly connected. Compared with the prior art, the method has the advantages of better detection effect and higher detection efficiency.

Systems and methods are described for wafer processing. A wafer processing apparatus includes: a first wafer transporter; a process station coupled to the first wafer transporter, the process station including: a first plurality of wafer processing stacks, each of the plurality of wafer processing stacks including a plurality of wafer processing modules, and a second wafer transporter coupled to the plurality of wafer processing modules, each of the plurality of wafer processing modules adjacent, and accessible by, the second wafer transporter; and a third wafer transporter coupled to the process station, wherein any of the plurality of wafer processing modules in any of the plurality of wafer processing stacks can be accessed by at least two adjacent wafer transporters from among the first, second and third wafer transporter. The systems and methods provide advantages from minimizing pre-process and/or post-process times, minimizing variation of the pre-process and/or post-process times and reducing robot over utilization.

A post-processing system is provided for cleaning and/or curing a part produced by solid freeform fabrication (SFF). The post-processing systems include a housing, a part retaining device to retain the part within the housing, and an actinic radiation source to cure the part with actinic radiation. The systems also include a fluid circulation device adapted to expose the part to cleaning fluid and/or to allow the cleaning fluid to absorb actinic radiation to permit filtration of removed build material to allow extended use of the cleaning fluid. Certain systems include a first rotating portion that can rotate the retained part about a first axis, and further systems include a second rotating portion that can rotate the retained part about a second axis. The systems also include additional features to provide safe and efficient cleaning and/or curing of parts produced by SFF.

The invention discloses an anchor-point-free face detection method and a system. The method comprises the steps of inputting a to-be-detected face image into a trained face detection network for facedetection; performing face feature extraction on the trained face detection network, and outputting a face heat map, a face scale map and a face center offset map; regarding points greater than a preset threshold in the human face heat map as human faces; and extracting a face coordinate offset from a corresponding position on the face center offset map, adding the face coordinate offset to the coordinates of the face heat map to obtain a final face center position, and finally calculating the width and height of the face on the face scale map to obtain the coordinates of the face. According to the method, the human face is expressed as the central point of the human face frame, and then the size of the human face frame is directly returned according to the image features of the central position, so that the post-processing time of tedious anchor points is reduced, and a rapid and efficient human face detection task is realized.

A system for remotely sensing a target material in situ include a broad-band laser source, at least one tunable filter coupled to the source laser for generating a swept-frequency signal an optical device for splitting the swept-frequency signal into a first illumination signal and second illumination signal, a first optical path for directing the first illumination signal unto the target material and receiving a reflected signal from the target material, a second optical path for receiving the second illumination signal and generating a spectral reference signal, and a controller coupled to the first optical path and the second optical path for adjusting the frequency and spatial resolution of the laser source based at least in part on a comparison of the spectral reference signal and the reflected signal.

The invention provides a continuous variable secret key distribution method based on biphase modulation and data post-processing. The method comprises the following two portions of a first portion, abiphase modulation portion; and a second portion, a novel data post-processing portion in which secrecy strengthening is performed firstly and then secret key negotiation is performed, wherein in thebiphase modulation portion, two phase modulators are adopted to carry out information modulation on a quantum coherent state so as to realize perfect Gaussian modulation; and in the novel data post-processing portion, the secrecy strengthening is performed firstly and then the secret key negotiation is performed in a data post-processing phase. In the invention, a new modulation mode is realized;and a new data post-processing scheme can be used to increase a data post-processing speed so that a safe secret key rate of a whole continuous variable quantum secret key distribution system is increased.

The invention relates to a method for environmentally and efficiently preparing polycarbosilane, comprises the following steps: enabling a reactant dimethyl dichlorosilane to react with metallic sodium in an organic solvent to prepare polysilane, removing the solvent, reacting with residual metallic sodium by using alcohol, directly feeding into a cracking kettle to prepare low-molecular weight liquid state cyclic polysilane, and finally preparing polycarbosilane from the liquid state cyclic polysilane. The method has the advantages that the processes of washing and drying the polysilane for a plurality of times, which are long in time-consuming and capable of producing industrial wastewater, are avoided in an existing process route of producing the polycarbosilane; meanwhile, the solvent and the alcohol adsorbed in the polysilane can be subjected to secondary recycling in the process of preparing the liquid state polysilane. The pilot scale test data shows that compared with the prior art, the method has the advantages that the production period is saved by 30-50%, the solvent recycling rate is increased by 10-20%, the industrial wastewater containing a benzene organic solvent cannot be produced, the working environment is purified, and the reaction residue is fluffy solid residue, and can be easily cleaned from a reaction still.

The invention discloses a post-processing system for phase polarization joint modulation QKD. The system comprises a sender and a receiver. Each of the sender and the receiver comprises an informationinteraction unit, a parameter estimation unit, an error correction unit and a confidentiality amplification unit which are connected in sequence. The information interaction unit, the parameter estimation unit, the error correction unit and the confidentiality amplification unit of the sender are respectively connected with the information interaction unit, the parameter estimation unit, the error correction unit and the confidentiality amplification unit of the receiver in a one-to-one correspondence manner through channels. According to the invention, aiming at the characteristics of a phase polarization joint modulation QKD system and a double-speed protocol used by the phase polarization joint modulation QKD system, a traditional transceiver base vector comparison step is not needed in the information interaction unit, so that the information interaction amount is reduced, and the post-processing efficiency is improved; and the parameter estimation unit estimates the bit error rate of the key by using a packet parity check method, and selects a reasonable error correction method and a secrecy amplification method after estimating channel parameters, so that the correctness andthe safety of quantum key distribution are improved by the steps.

The invention provides a method and a special device for automatically measuring coal pile volume. The method comprises the steps of: firstly, disposing a plurality of markers on a coal pile; secondly, cruising the coal pile a circle by a cruising car, wherein while moving, the cruising car scans every marker, a laser range finder on the cruising car acquires the distances S from the cruising car to the markers and pitch rotation angles Phi, a GPS (global positioning system) sensor arranged on the cruising car provides a current horizontal rotation angle beta, the distance from the laser range finder to the ground is H, and the spatial coordinate of one marker can be obtained; processing the acquired spatial coordinates of all markers to form a three-dimensional figure of the coal pile; and calculating the volume of the coal pile according to the three-dimensional figure of the coal pile. The method and the special device can accurately measure the volume of the coal pile and are easy to implement.

The invention discloses a high-energy-storage double-layer-wall-material phase change microcapsule. According to the phase change microcapsule, an organic phase change material is taken as a core material, urea resin is taken as an outer-layer wall material, and a vinyl polymer is taken as an inner-layer wall material; the mass ratio of the urea resin to the vinyl polymer in the wall materials is 1 to (0.3-1.7); a cross-linking agent is an small organic molecule with two groups including double bonds and hydroxymethyl; and the mass ratio of the core material to the wall materials is (1-3.5) to 1. The double-layer-wall-material phase change microcapsule has the advantage that a urea resin microcapsule is hydrophilic and is not easily agglomerated, and polymethyl methacrylate is low in hydrophobic permeability when uniform particle sizes and high embedding rate are guaranteed.

The invention discloses a reciprocating compressor energy efficiency analysis system based on a p-V diagram test. The system comprises a hardware module and a software module, the hardware module comprises a pressure sensor, a pressure transmitter, a temperature sensor, a key phase sensor, a mutual inductor and a data acquisition card, the software module comprises data display, data processing and data storage. The system can achieve real-time measurement and analysis of the flow rate, indicated power, motor power and efficiency of a reciprocating compressor, so that the operation situation of the reciprocating compressor is reflected. The system has the beneficial effects that the compressor flow can be obtained through p-V diagrams of measured cylinders at each level without the need ofinstalling a flowmeter on a compressor pipeline; the p-V diagrams of the measured cylinders at each level can reflect the change of air volume at all levels, the indicated power at all levels and thetotal indicated power intermediately; the compressor energy efficiency analysis system based on the p-V diagram test can complete the real-time data processing, the measurement efficiency is improved, and the technology is simple and convenient, and easy to implement.

The invention discloses a method for preparing apixaban. The method comprises the following steps: 1) subjecting a compound represented by a formula II to a reaction with a compound represented by a formula III in a two-phase system of water and an organic solvent, so as to obtain a compound represented by a formula IV; 2) subjecting the compound represented by the formula IV to a cyclization reaction in the presence of alkali and a phase transfer catalyst, so as to obtain a compound represented by a formula V; and subjecting the compound represented by the formula V to an ammonolysis reaction, thereby obtaining the apixaban represented by a formula I. The method is simple in operation and low in cost and is applicable to large-scale industrial production.

A purification method of polyarylether by using water and an alcohol mixed solvent under high temperature and belongs to the technical field of polymer materials. The method is as below: fully mixing the polyarylether powder with alcohol or n-butyl alcohol or an aqueous solution of the two mixed in any proportion, conducting hydrothermal purification treatment for 20-50 min; and cooling to room temperature, filtering, and drying the obtained polyarylether at 140-160 DEG C for 4-6 h, so as to obtain polyarylether with a low metal ion content. The invention uses a mixed solvent of water and isopropanol or butanol for purifying polyarylether. The introduction of isopropanol and n-butyl alcohol effectively reduces the surface energy of water, and increases the capacity of entering and exiting the honeycomb polyarylether material of water. At higher temperature, the polymer molecule chains have a higher exercise capacity, which facilitates diffusion and desorption of metal ions. After the process is completed, vacuum drying under reduced pressure is carried out to remove the remaining water and n-butyl alcohol and reduce the post-post-treatment time and costs.

The invention belongs to the technical field of plant extraction, and particularly relates to a method for extracting and purifying alkaloid in plants and an application. The plant alkaloid is obtained through combination of flash extraction with micro-controlled extraction, and extremely short extraction time and a sufficient and complete distilling manner are used, so that the method disclosed by the invention concurrently has the characteristics of being quick and efficient; the extraction rate and the distilling rate of alkaloid are high, the content of obtained active components is high,the content of impurities is low, the operation time is short, the usage quantity of a solvent is low, and a convenient and efficient obtaining way is provided for extraction and purification of effective components in medical and edible plants.