40results about How to "Realize union" patented technology

The invention provides a physical image information fusion device and a physical image information fusion method. The method comprises the following steps of: rapidly and accurately obtaining left and right viewpoint positions of a model space through characteristic edges of a real space characteristic cube, and generating left and right images of the model space; completely coinciding the characteristic cube in the left and right images of the model space and the real left and right image characteristic cube to realize rapid fusion of the physical image information; and judging whether the viewpoint is changed by detecting whether the current real image is coincided with the characteristic points of the characteristic cube in the previous real image, and calculating a new viewpoint coordinate so as to generate a new model left and right image when the viewpoint is changed. The three-dimensional simulation of an assembly environment is realized based on a three-dimensional display mode, so that an operator has a feeling of being personally on the scene, the position of a real assembling unit is sensed through binocular vision, a virtual assembling unit model is established, the virtual assembling unit and the real assembling unit are fused, and the information world and the physical world are combined.

The invention discloses a three-dimensional soft model cutting forming machine and a three-dimensional soft model cutting forming method using the forming machine to achieve high efficiency machining, wherein the three-dimensional soft model cutting forming machine is compact in structure, and smooth and fast to machine. The forming machine comprises a base, a stand column, a fixed cantilever, a movable cantilever, an angle cutter head base and a cutter head body. The stand column is installed on the base through a first guide drive mechanism and can reciprocate along the horizontal X axis, the fixed cantilever is installed on the stand column through a second guide drive mechanism and can reciprocate along the horizontal Y axis, the angle cutter head base is installed at the front end of the movable cantilever through a fourth guide drive mechanism and can swing in the two directions around a first reference axis parallel to the horizontal Y axis under the action of the fourth guide drive mechanism, and the cutter head body is installed on the angle cutter head base through a fifth guide drive mechanism and can swing in the two directions around a second reference axis perpendicular to the first reference axis under the action of the fifth guide drive mechanism.

The invention discloses a core network multiple interfaces signal flow connection method. In a process of signal flow connection, signal flow connection information which includes connection keywords and signal flow identifications need to be stored, and corresponding call tracing identifications can be inquired according to a KEY value when the connection is processed. The core network multiple interfaces signal flow connection method comprises a connection mode of an IU interface and a circuit domain Mc, a connection mode of the IU interface and a pocket domain Gn interface and a connection mode of an IU interface flow and a C/D/E interface flow. The core network multiple interfaces signal flow connection method takes index error (IE) of the information as a key parameter and connects different flows into a same flow.

The invention discloses an angle milling head having a dual-lead worm and gear transmission clearance removing device in order to improve the processing precision of the angle milling head. The angle milling head comprises an angle milling head base and a milling head body, wherein the milling head body is mounted on the angle milling head base through a guide drive mechanism and can perform bidirectional swing around a reference axis under the holding of the guide drive mechanism; the dual-lead worm and gear transmission clearance removing device is adopted as the guide drive mechanism; a dual-lead worm is located in a casing through a front end rotation support assembly and a rear end rotation support assembly; the front end rotation support assembly comprises a front end sleeve part; an inner hole wall of the front end sleeve part forms a front end guide hole and a front end thread hole from inside to outside; a front end bearing closely matched with the front end of the dual-lead worm is mounted in the front end guide hole and is in axial sliding fit with the front end guide hole; and the end face of an outer circle on the external side of the front end bearing is axially pressed from outside to inside by a front end adjusting screw adaptively connected with the front end thread hole.

The invention discloses a pre-loan credit evaluation method and device. The method comprises the following steps: obtaining client account information, loan blacklist user information and loan whitelist user information of a plurality of banking institutions; abnormal data cleaning is carried out on the client account information, the loan blacklist user information and the loan whitelist user information of the multiple banking institutions; constructing a training sample set according to the client account information, the loan blacklist user information and the loan whitelist user information of the plurality of banking institutions after abnormal data cleaning; training the pre-loan credit evaluation model according to the training sample set to obtain a trained pre-loan credit evaluation model; and performing pre-loan credit evaluation by using the trained pre-loan credit evaluation model. According to the invention, data combination of multiple bank institutions can be realized,the performance of the pre-loan credit evaluation model is improved, leakage of private data of users is avoided, supervision is facilitated, and the risk of data violation is reduced.

The present invention provides a bacterium-photothermal nanoparticle composite and a preparation method and an application thereof, and relates to the technical field of nanomedicine. The bacterium-photothermal nanoparticle composite comprises photothermal nanoparticles and bacteria. The bacteria and the photothermal nanoparticles are connected by chemical bonds A technical problem of a poor therapeutic effect of using the bacteria to treat tumors currently is solved. In the provided bacterium-photothermal nanoparticle composite, safety and targeting of the bacteria in body are improved and combination of bacterial therapy and photothermal therapy are combined by chemically bonding the photothermal nanoparticles to the bacteria, and at the same time, the bacterium-photothermal nanoparticlecomposite can also trace and image the bacteria and tumors, and can effectively improve effectiveness of tumor treatment.

The invention provides a text recognition model training method and device, a text recognition method and device, and equipment. The training method comprises the following steps: constructing an initial model; taking the output of the first text image data through the recurrent neural network as the character string input of the word embedding module, taking a first feature map obtained after the first text image data passes through a second convolutional neural network of the second part as the other input of the word embedding module, and training the initial model to obtain a convergent initial model; and obtaining a text recognition model based on the converged initial model; the initial model comprises a first part used for recognizing text content of the image, and provided with a first convolutional neural network and a recurrent neural network and a second part used for judging whether the given text is in the given image or not, and provided with a second convolutional neural network and a word embedding module; the device is used for executing the method. By means of the training method, the text recognition model which is high in recognition speed and higher in recognition precision can be obtained.

The invention relates to a preparation method of a lactone compound. In the presence of an organic nitroxide radical precursor, an alcohol, and a Sn-based catalyst, a ketone represented by a formula (1) is oxidized with molecular oxygen to obtain a compound represented by a formula (2), wherein the organic nitroxide radical precursor is a nitrogen-containing cyclic compound having a skeleton represented by formula (I), in the formula (1), Ra and Rb are the same or different, and Ra and Rb are bonded to each other and form a ring together with an adjacent carbonyl carbon atom; in the formula (I), R represents a protective group of a hydroxyl group or a hydrogen atom; in the formula (2), Ra and Rb are the same or different, and Ra and Rb are bonded to each other and form a ring together withan adjacent carbonyl carbon atom and oxygen atom.

The invention provides a zero sample identification method and system based on discriminative visual attributes, and the method comprises the following steps: S1, constructing a sparse coding model, and optimizing the sparse coding model based on original feature domain sample data, and obtaining an original feature domain transformation relation from visual features to artificial defined attribute representation; S2, introducing a classification error cost term to construct a supervised dictionary learning target model, and extracting an original feature domain discriminative visual attributeset; S3, constructing a target feature domain learning model based on the original feature domain transformation relationship and the original feature domain discriminative visual attribute set, andmining target feature domain discriminative visual attributes; and S4, inputting a to-be-detected image containing the semantic object, extracting depth visual features of the to-be-detected image through the depth residual network, and optimizing the sparse coding target function to obtain semantic attribute representation of the visual features of the to-be-detected image. According to the method, the problem of lack of feature representation semantic information during recognition of artificially defined attributes can be solved, and the discrimination capability of visual feature representation is enhanced.

The invention belongs to the technical field of medicines, and particularly relates to a camptothecin-based dimer compound as well as preparation and application thereof. The dimer compound has a structure represented by a formula (I), wherein in the formula (I), m is an integer of 1-4, and n is an integer of 1-4. The dimer compound is connected with camptothecin and immunomodulatory small molecules NLG919 through reductive disulfide bonds, so that combination of tumor chemotherapy and immunotherapy is realized, and the anti-tumor curative effect is enhanced. The compound prepared by the invention can be reduced into original camptothecin and NLG919 under a reducing condition, has good anti-tumor activity in tumors such as liver cancer, breast cancer, colon cancer, melanoma, ovarian cancerand the like, and can be used for inhibiting the activity of indoleamine 2,3-oxygenase, increasing DC cell maturation and reducing the number of immunosuppressive Treg cells; the drug resistance of tumor stem cells to camptothecin is reduced, and the tumor immune response is enhanced.

The invention discloses a height-adjustable plane cascade test section. The plane cascade test section is a square body and comprises a shell, two test section discs installed in the shell in parallel on the left side and the right side, two wall plate assemblies installed on the upper side and the lower side in the shell, and two groups of corresponding angle adjusters and pull rods. A space among the inner walls of the two test section discs, the two upper and lower wall plate assemblies and the two upper and lower length compensation plates is a test section. And the space between the outer walls of the two test section discs and the shell is a test section plenum chamber. The moving end of the angle adjuster drives the two upper and lower wall plate assemblies to rotate around the pin shaft so as to realize height and angle adjustment of the upper and lower wall plate assemblies of the test section. The plane cascade test section is comprehensive in function, convenient to operate, simple to position, high in accuracy and capable of saving test preparation time and improving test efficiency.

The invention discloses a method for removing heavy metal-organic combined pollutants in water by utilizing a TiO2/FeO composite photocatalyst. According to the invention, TiO2 is combined with FeO to prepare the TiO2/FeO composite photocatalyst with high activity, and heavy metal Cr(VI) and antibiotics ciprofloxacin are synchronously removed under ultraviolet light and aerobic conditions. The existence of FeO effectively inhibits the compounding of TiO2 holes and electron pairs, and the existence of TiO2 can effectively relieve agglomeration of FeO, thus promoting the catalytic performance on the whole, and finally realizing efficient and synchronous removal of heavy metal-organic combined pollutants in water.

The invention discloses a reduction/pH-sensitive polysaccharide-based nano prodrug co-loaded with adriamycin and a platinum type drug, and a preparation method and application of the prodrug. According to the preparation method, firstly 3,3'-dithiodipropionyl hydrazine is bonded to carboxyl of a polysaccharide polymer by using a carbodiimide method to obtain a hydrazide polysaccharide polymer, adriamycin is connected to the hydrazide polysaccharide polymer through a hydrazone bond, self-assembly is conducted to form nanoparticles, and finally the platinum type drug is loaded on the nanoparticles to form the reduction/pH sensitive polysaccharide-based nano prodrug co-loaded with doxorubicin and the platinum type drug. The nano prodrug has a core-shell structure, the particle size is adjustable within the range of 100-200 nm, quick release of the drug can be achieved in response to glutathione and pH dual stimulation, and the nano prodrug can be used for killing tumor cells. The preparation method of the nano prodrug has the characteristics of easily available raw materials, mild process conditions, simple purification process, easiness in large-scale preparation and the like, and has an application prospect in treatment of various tumors such as breast cancer, liver cancer and the like.

The invention discloses a length-adjustable plane blade grid test section wall plate. The plane blade grid test section wall plate comprises a rotating plate, a length regulator, a guide rail pair and a translation plate. The rotating plate is a straight plate, the front end of the rotating plate is a fixed end, the fixed end is fixed at the outlet of the spray pipe through a pin shaft, and the rear end of the rotating plate is a free end. Guide rails are installed on the upper surface of the rotating plate. The translation plate is another straight plate, and a sliding block is fixed on the upper surface of the translation plate and clamped on the guide rail. The fixed end of the length adjuster is installed on the upper surface of the rotating plate, and the moving end of the length adjuster is connected with the rear end of the translation plate through a pin shaft. The length adjuster drives the sliding block on the translation plate to move along the guide rail, and front-back movement of the translation plate is achieved. According to the plane blade grid test section wall plate, the length of the test section wall plate can be adjusted according to blade grid test conditions, operation is convenient and fast, positioning is easy, the length adjusting precision is high, the test preparation time can be saved, and the test efficiency is improved.

The invention relates to the field of placing frames, in particular to a placing frame for an image intervention guiding instrument, which comprises a placing frame body and universal wheels, the universal wheels comprise roller brackets and rollers, the four universal wheels are respectively arranged at four end points of the bottom of the placing frame body, and the placing frame further comprises a brake assembly and a linkage mechanism; the number of the brake assemblies is four, the four brake assemblies are in one-to-one correspondence with the universal wheels, and each brake assembly comprises a first mounting seat, a brake pad and a first rotating shaft; one end of the first mounting seat is hinged to the roller bracket through a first rotating shaft; the brake pad is fixedly mounted on one side, close to the roller, of the first mounting seat; and the linkage mechanism is used for driving the four brake pads to move close to or away from the rolling wheels at the same time, the four universal wheels below the placing frame body can achieve the braking function at the same time through one linkage mechanism, and workers can stop placing the placing frame body conveniently.

The invention discloses a testing device and a method for sterilizing a liquid by means of a high voltage electric field coupled with ultrasonic treatment. The device comprises a first slipway group,a second slipway group, a third slipway group, a fourth slipway group, a coupling agent assembly, an ultrasonic excitating assembly, a high speed camera, a supporting rack and a microfluidic module. The coupling agent assembly comprises a coupling agent supporting block, a coupling agent channel and a coupling agent control air cylinder; the ultrasonic excitating assembly comprises an ultrasonic probe supporting block, an annular probe temperature sensor and an ultrasonic probe; and the microfluidic module comprises a glass negative, a PDMS film, an insertion needle, a capillary steel tube, alower bottom plate and an upper cover plate. According to the device provided by the invention, the liquid is sterilized by means of the high voltage electric field coupled with ultrasonic waves assisted by a microfluidic technique, and a sterilizing effect on different bacteria can be achieved by adjusting parameters such as power of the electric field and power of a sound field.