277results about How to "Improve processing accuracy" patented technology

A light-emitting diode which has a significantly high luminous efficiency and which can be manufactured at a reasonable cost by one epitaxial growth and a manufacturing method thereof are provided. The above method includes: preparing a substrate provided with convex portions on one major surface, the convex portions being formed from a dielectric substance which is different from the substrate and which has a refractive index of 1.7 to 2.2; growing a first nitride-based III-V compound semiconductor layer in a concave portion on the substrate; growing a second nitride-based III-V compound semiconductor layer on the substrate from the first nitride-based III-V compound semiconductor layer in a lateral direction; and growing, on the second nitride-based III-V compound semiconductor layer, a first conductive type third nitride-based III-V compound semiconductor layer, an active layer, and a second conductive type fourth nitride-based III-V compound semiconductor layer.

The invention relates to the field of double dynamic license plate identification, and provides a character confidence degree-based secondary license plate identification method and apparatus for the problems existent in the prior art. The method comprises the steps of performing character identification through template matching; giving out confidence degrees of identification results; for the results with relatively low confidence degrees, performing video super-resolution processing to obtain a frame of high-quality image; and based on the image, performing secondary license plate identification through a neural network classifier. According to the method and the apparatus, a license plate confidence degree threshold Th is preset; a picture is captured from a front end and license plate locating and segmenting are performed; characters of a license plate are identified; character identification confidence degrees and license plate identification confidence degree are calculated; when the character confidence degrees are all higher than the threshold Th, a license plate identification result is directly given, otherwise, the video super-resolution processing is performed; a frame of high-quality image is obtained by utilizing time domain information; and based on the image, the to-be-identified characters are input to classifiers for performing identification according to a position relationship of the to-be-identified characters, so that a final license plate identification result is obtained.

The invention relates to a crease type crash energy absorption box, belonging to the technical field of manufacturing a motorcar body structure. The invention is characterized in that a thin-wall tubeprovided with crease grains is used as a crash energy absorption box, and the crease grains lead the final deformation mode of a crash deformation section. Compared with an ordinary thin-wall tube, the invention is obviously characterized in that one thin-wall tube is divided into a plurality of modules along an axial direction, and diamond-shaped concave angles are respectively arranged on eachcorner region of each module at certain intervals along the axial direction, thereby forming the thin-wall tube with the crease grains. The invention has the effects and the benefits that by providingthe crease grains, the crash absorption box can simultaneously meet the requirements on high ratio energy absorption efficiency and low load uniformity factor; the shape of the crease of the invention is convenient to be formed, the surface of the entire structure is expandable, and the advantage is that the entire structure can be directly formed by processing one thin flat plate, thereby enabling the processing to be much more convenient, greatly reducing the production cost and increasing the accuracy of processing.

A shaping apparatus is equipped with: a beam shaping system having a beam irradiation section that includes a condensing optical system which emits a beam and a material processing section which supplies a shaping material irradiated by the beam from the beam irradiation section; and a controller which, on the basis of 3D data of a three-dimensional shaped object to be formed on a target surface, controls a workpiece movement system and the beam shaping system such that a target portion on the target surface is shaped by supplying the shaping material from the material processing section while moving the beam from the beam irradiation section and the target surface on a workpiece (or a table) relative to each other. Further the intensity distribution of the beam in the shaping plane facing the emitting surface of the condensing optical system can be modified.

Provided is a method for processing text containing emotion information. The method for processing the text containing the emotion information comprises the steps that the symbol content and/or the tone content in the text to be processed through text-to-speech transformation are searched for; the found symbol content and/or the found tone content are replaced by corresponding descriptors so that text to be processed can be formed; speech synthesis is carried out on the text to be processed. Processing is also carried out on the symbol content and/or the tone content in the text-to-speech transformation process, wherein the symbol content and/or the tone content are ignored in the text-to-speech transformation process in the prior art, the symbol content and the tone content are transformed into characters which can be recognized by a TTS processing engine through the descriptors, and the content finally obtained through speech synthesis also comprises the symbol content and the tone content. Therefore, loss of the content in TTS processing is avoided, accuracy of TTS processing is improved, and content misunderstanding by a listener is avoided.

The invention relates to a machine tool comprising frame (1) which has rigid side walls (2, 3) with linear guides (4, 5) on the top; compound slides (6, 11) which is movable and situated in or on the linear guides (4, 5) of the side walls, and which guides a processing unit (14) with a spindle head (15) at a front side so as to move the processing unit (14) vertically; and workpiece holding units (24-28) which are arranged in a gap between the side walls and may include a workbench (28) or a workpiece clamping device. One side wall (3) at the front side is shorter than the other side wall (2) for forming an enlarged access to a working space of the machine tool. The linear guides (4, 5) on the side walls (2, 3) of a machine frame (1) are aligned under an acute angle to a vertical center plane of the machine frame (1).

The invention discloses a dust collector for an electric tool and an electric tool with the dust collector. The electric tool comprises a processing head (5). The dust collector comprises a container (3) for collecting dust which is generated when the electric tool processes workpieces, wherein the container comprises an opening part (30), a connecting part (31) for connecting with the electric tool and a side part (32) for connecting with the opening part with the connecting part, wherein the opening part is provided with a dust collecting port (35) for propping against a workpiece surface to be processed so as to collect the generated dust in the container; the connecting part is provided with a hole (36) for the processing head to enter the container; and the dust collector further comprises a dust bag (2), wherein a discharge port (37) for connecting with the dust bag is formed in the container, and dust can enter the dust bag through the discharge port. The dust collector is provided a small quantity of parts, is simple in structure and convenient to operate, can be used as a separate accessory to be connected with various electric tools, and has a quite wide application scope.

Embodiments of the invention provide a feature extraction method and apparatus, a computer program, a storage medium and an electronic device. The feature extraction method comprises the steps of performing target detection on a to-be-processed image, and obtaining overall region information and at least one local region information of a target object in the to-be-processed image; obtaining globalfeature data of the to-be-processed image; according to the overall region information and the at least one local region information, obtaining overall feature data and at least one local feature data of the target object; and fusing the global feature data, the overall feature data and the at least one local feature data to obtain fused feature data. By adopting the technical scheme, the fused feature data can carry the global information of the image and the overall information and the local information of the target object at the same time, so that the importance of the information of theregion where the target object is located in image processing is highlighted and the image processing accuracy is improved.

The present invention provides an etching liquid for a multilayer thin film containing a copper layer and a titanium layer, and a method of using it for etching a multilayer thin film containing a copper layer and a titanium layer, that is, an etching liquid for a multilayer thin film containing a copper layer and a titanium layer, which comprises (A) hydrogen peroxide, (B) nitric acid, (C) a fluoride ion source, (D) an azole, (E) a quaternary ammonium hydroxide and (F) a hydrogen peroxide stabilizer and has a pH of from 1.5 to 2.5, and a etching method of using it.

The invention discloses a cigarette loose end rate prediction method based on an improved gradient improvement decision tree, which comprises the following steps: acquiring process parameters of tobacco shreds in the same batch in each process of tobacco shred making and loose end rate data in a final package process, and forming an original data set by the process parameters and the loose end rate data; dividing the original data set based on the original data set in combination with a correlation coefficient analysis method to obtain a key process parameter set; performing normalization processing on the data in the key process parameter set, and performing random division on the normalized data to obtain a training data set and a test data set; on the basis of training samples in the training data set, constructing an improved gradient improvement decision tree model; and inputting the test data set sample into the improved gradient improvement decision tree model, and predicting the cigarette empty head rate. A connection is established between each process parameter of the tobacco shred making process and the index of the cigarette packet vacancy rate, so that more accurate prediction of the cigarette vacancy rate is realized.

The embodiment of the invention discloses a method and device for preventing screen touch by mistake during double-hand holding and a mobile terminal and relates to the technical field of touch. The method comprises the steps of obtaining a user's terminal holding gesture when it is detected that set application software is opened; if the terminal holding gesture is double-hand holding, obtaining operation information corresponding to touch operation; performing matching on the operation information and historical operation law information of current application software, and determining whether to close a function of preventing touch on the edge of a touch screen by mistake according to matching results. According to the method and device for preventing screen touch by mistake during double-hand holding, a problem that when a virtual key is located in a mistaken touch preventing area of the touch screen, no response is made to the operation on the virtual key due to the starting of the function of preventing touch on the edge of the touch screen by mistake is solved, and an effect of improving treatment accuracy of a screen touch event of the mobile terminal is achieved.

Each shading plate comprises a rotating shaft and a driving shaft arranged vertically. First divided shading plate is loosely fitted to and supported by (not adhere to) the rotating shaft and rotates around the shaft. Second divided shading plates are fixed to the rotating shafts and rotate by rotating movement of the shafts. A driving shaft is connected longitudinally to (not adhere to) an edge of the first divided shading plate and supply power to rotate the first divided shading plates. Recesses are formed at the center of upper short side and at the center of lower short side of the first divided shading plate and the first divided shading plate and the second divided shading plates which form one and the same shading plate are so constructed that their short sides are overlapped each other.

An embodiment of the invention discloses a palm rejection method and device for screen edges and a mobile terminal. The method includes the steps: acquiring screen states of the mobile terminal when application software in preset white lists is started; closing a palm rejection function of the screen edges, and starting a counter to record number of touch operations acted on a set palm rejection area if the screen state is a first state; acquiring touch operations inputted by a user according to set periods, and increasing counting values of the counter when the touch operations meet presser conditions; opening the palm rejection function of the screen edges if the value of the counter in the set time exceeds a set threshold value. The palm rejection method solve the problem that the mobile terminal executes faulty operations as the screen edges are faultily touched after the palm rejection function of the screen edges is closed, reporting accuracy of touching points is improved, and processing accuracy of screen touch events of the mobile terminal is improved.

A polishing device for optical elements includes: a tool shank (1), and a polishing disc base; wherein the tool shank (1) is connected to the polishing disc base and is mounted on a tool shaft of a numerical-controlled processing device; wherein a polishing film (3) is stuck on the polishing disc base; the polishing disc base is a profiling polishing disc base (7), a cylinder polishing disc base (2), a profiling polishing disc base (12) or a spherical polishing disc base (8); wherein the tool shank (1) is independent and universal, thereby reducing the processing cost of the polishing device. A polishing method for optical elements is based on the shapes mentioned above of the polishing disc base.

An optoelectrical connector is composed of a plug to which a wire and an optical fiber are assembled and a receptacle to which the plug is inserted and connected. A receptacle includes insulation sleeves and conductive contacts in openings of receptacle housings, and plugs include a ferrule assembled bodies which are composed of an insulation ferrule which holds an optical fiber and a conductive cylindrical member which holds the ferrule and to which a wire is assembled, in an opening of the plug housing. When the plugs are inserted into the receptacle, the contacts and the cylindrical member contact with each other and the ferrules are inserted into the sleeves. Parts which serve electrical connection are not exposed.

The invention relates to a three-dimensional processing device for a cable. The three-dimensional processing device comprises a control chassis, a cable transmission component and a bending component,wherein the cable transmission component comprises a cable incoming frame and a cable feeding roller correspondingly arranged on one side of the cable incoming frame; the bending component is correspondingly installed on one side of the cable transmission component; the bending component comprises a pedestal, a turntable installed on the pedestal, a rotating drive piece connected with the turntable, a support arm arranged on the turntable, a curve roller and a bending block respectively arranged on the support arm, and a bending drive piece connected with the bending block; a threading hole is arranged in the middle of the turntable; and the feeding roller and the curve roller are respectively arranged on the two sides of the threading hole. The three-dimensional processing device for thecable is provided with the curve roller and is correspondingly provided with the feeding roller and the threading hole, the curve roller is driven by the rotating of the turntable to move in the processing process, then the cable is further subjected to three-dimensional forming processing, and the cable is processed into the size and shape required in use by one machine.

Discloses are an etching solution for a multilayer thin film having a copper layer and a molybdenum layer contained therein; and an etching method of a multilayer thin film having a copper layer and a molybdenum layer contained therein using the same. Specifically disclosed are an etching solution for a multilayer thin film having a copper layer and a molybdenum layer contained therein, which includes (A) hydrogen peroxide, (B) a fluorine atom-free inorganic acid, (C) an organic acid, (D) an amine compound having a carbon number of from 2 to 10 and having an amino group and a hydroxyl group in a total group number of 2 or more, (E) an azole, and (F) a hydrogen peroxide stabilizer, and which has a pH of from 2.5 to 5; and an etching method using the same.

The invention relates to a method for machining holes in printed boards. The method includes 1), drilling the holes according to drilling files; 2), preparing hole milling files; 3), milling the holes according to the hole milling files, and the like. The method has the advantages that when the hole milling files are prepared in the step 2), preliminarily compiled macro-programs are invoked by the aid of macro-language in CAM (computer-aided manufacturing)350 software, and only drilling-to-hole-milling switching parameters need to be inputted and selected, so that the hole milling files can be automatically generated, the hole milling machining efficiency and accuracy can be greatly improved, and human errors due to manual operation can be eliminated.

The invention relates to a city domain knowledge detection system and method based on an LDA topic model. The city domain knowledge detection system and method are used for generating a domain knowledge report of a certain domain of a smart city. The system adopts a C/S architecture, adopts a modular system design, and comprises an authentication and management module, a file uploading module, a data cleaning module, an emotion analysis module, a word segmentation and part-of-speech tagging module, a keyword extraction module, a clustering module and a data transmission module. According to the invention, large-scale domain knowledge data generated in the city informatization process is fully utilized, the city domain knowledge report can be automatically generated for the user, and the invention is further applied to the fields such as traffic early warning and public opinion monitoring; the design is good, operation is stable, the system can be used without deploying the environment,and the has high practical application value. The modules are updatable and replaceable, and can be suitable for maintenance, improvement and expansion which may be required in the future. Accordingto the personalized requirements of different users, each module provides customizable parameters or files, so that the system not only meets the general requirements of common users, but also meets the customization requirements of professional users.