Method, device and system for calibrating electric field probe

The invention provides a calibration method, device and system of an electric field probe. Based on the method, before specific implementation, two preset antennas and a vector network analyzer connected with a power amplifier can be utilized to perform preset first calibration processing so as to eliminate drift influence brought by connection of the power amplifier; a first transmission parameter is acquired; in specific implementation, a preset antenna, a target electric field probe and a vector network analyzer can be utilized to perform corresponding tests so as to acquire a second transmission parameter and a third transmission parameter; and the first transmission parameter, the second transmission parameter and the third transmission parameter are comprehensively utilized to carry out accurate and effective calibration processing on the target electric field probe.

X -ray detects machine

The utility model discloses a X -ray detects machine, pass through including material loading district, detection zone, letter sorting district transport mechanism connects gradually, and the fixing device in material loading district will detect fix on transport mechanism, and the X -ray detection device of detection zone detects detecting the product, and the decision maker judges whether detect the product satisfies requirements for quality, and the sorting device in letter sorting district is according to the result of judging of decision maker, and when the NG product appears, sorting device detects the product with NG and sorts, makes unqualified product can not get into next process, improvement work efficiency, the mass production of being convenient for.

Product recommendation method, device and equipment

The embodiment of the invention provides a product recommendation method, device and equipment, and the method comprises the steps: recognizing the content in a target picture through employing a target detection algorithm, and obtaining a recognition result at least comprising a product image; determining a region of interest of a user on the target picture by using an eye movement tracking model based on the acquisition equipment; under the condition that the first product image included in the recognition result exists in the region of interest, obtaining a product image meeting a preset condition with the first product image from a product database; and displaying the product image meeting the preset condition in the recommendation area of the target picture. According to the embodiment of the invention, the overall product screening and pushing efficiency can be improved, and meanwhile, the product pushing accuracy is improved.

Preparation method of glufosinate

The invention discloses a preparation method of glufosinate which is prepared by reacting a trivalent methyl phosphorous acid compound with butenenitrile, then rearranging by using Neber and carrying out hydrolysis reaction. The invention not only can avoid the use of hypertoxic cyanide, but also can avoid the protection, the deprotection and other reactions for amino groups during using amino acid derivatives, so that the process reactions for preparing the glufosinate have few steps, simple and convenient operation and low cost, and completely accord with scale production.

Filter seat

The invention relates to a filter seat. The structure of the filter seat is that an oil inlet cavity and an oil outlet cavity are arranged in a body; the body is provided with differential pressure transducers which are respectively independently communicated with the oil inlet cavity and the oil outlet cavity; and the differential pressure transducers are connected with the input end of an automobile alarm circuit through wires. The differential pressure transducer is a strain type differential pressure transducer, pressure spring type differential pressure transducer or semiconductor type differential pressure transducer. The filter can be used immediately after the filter seat is installed on the filter tank. When an engine works, the change of the differential pressure between the oil inlet cavity and the oil outlet cavity in the filter seat is detected to accurately judge the blocking status of the filter element; and when the filter element is blocked to a certain degree (the differential ...

A mechanical hand device for testing cell -phone temperature and sensitivity

The utility model provides a mechanical hand device for testing cell -phone temperature and sensitivity, including first mount pad, the second mount pad, a first support, and a second support, the second support, horizontal support and emulation touch pen, first mount pad and second mount pad set up on cell phone stand, be provided with first support on the first mount pad, be provided with the second support on the second mount pad, be provided with first track on one side of first support, be provided with the second track in second support one side with on the first track corresponding position, the setting that horizontal support moved about through first track and second track is on first support and second support, emulation touch pen sets up on horizontal support through mobile base, mobile base cup joints on horizontal support, it is individual that the quantity of horizontal support be 1 -3, the quantity of emulation touch -control pen is 1 -3. For carry on the cell -phone all ...

Method and system for constructing map application based on low-code platform

The invention relates to the technical field of computers, in particular to a method and system for constructing a map application based on a low-code platform, and the method comprises the steps: dividing a map function into a state layer for storing a map function state and a view layer for constructing a map function component, and setting a corresponding relation between the map function state and the map function component; packaging the map function component in the view layer into a map low-code component, setting the state of the map low-code component as a map function state, and monitoring and updating state transition information of the map low-code component based on a data adapter and an interoperation device; based on the map low code component, the data adapter and the interoperator generate a map application editor. The method has the effect of reducing the input of extra research and development and time cost.

Process for synthesizing doripenem lateral chain

The invention discloses a process for synthesizing a doripenem lateral chain. According to the process disclosed by the invention, L-hydroxyproline is taken as a starting raw material, and the doripenem lateral chain is obtained through the following steps of: amino protection, carboxyl protection, hydroxyl activation, reduction reaction, acetyl vulcanization reaction and condensation reaction. The process provided by the invention has the advantages of simple and easily-obtained raw materials, no high-temperature and high-pressure reactions and no super-low-temperature reactions; the 'three wastes' generated in the production process mainly comprise waste liquid and the wastewater in the waste liquid is neutralized by appropriate acid and alkali and then is discharged after achieving the discharging standard; and the organic solvents in the waste liquid comprises dichloromethane, dichloromethane and alcohols and can be recycled to be reutilized so that the pollution on the environment ...

X ray detector and X ray detector-based detection method

The invention discloses an X ray detector and an X ray detector-based detection method. The X ray detector comprises a material loading zone, a detection zone and a sorting zone, and the above zones are orderly connected by a transmission mechanism. Through a holding device in the material loading zone, a product to be detected is fixed to the transmission mechanism. The X ray detector in a detection zone is used for detecting a product to be detected. A determining device determines if the product to be detected satisfies quality requirements. A sorting device in the sorting zone is used for sorting NG detected products according to the determining result obtained by the determining device so that unqualified products do not enter into the next process. Therefore, work efficiency is improved and large-batch production is realized.

Automatic-focusing high-precision large-stroke precision positioning workbench

The invention discloses an automatic-focusing high-precision large-stroke precision positioning workbench. The automatic-focusing high-precision large-stroke precision positioning workbench comprises a motor, a high-precision ball screw, a high-precision ball screw lower support, a supporting rod, piezoelectric ceramic, a triangular laser emission device, a high-precision ball screw nut, a high-precision ball screw upper support and a platen. Compared with the prior art, the double control scheme is adopted for the automatic-focusing high-precision large-stroke precision positioning workbench in the aspect of an overall mechanical structure, the automatic-focusing high-precision large-stroke precision positioning workbench can have low cost while meeting the requirement for high precision, and meanwhile vibration produced by the direct current motor during driving is avoided. An automatic positioning system used in the automatic-focusing high-precision large-stroke precision positioning ...

Method and device for detecting circulating abnormal cells

A method and device for detecting circulating abnormal cells. The method for detecting the circulating abnormal cells comprises: respectively segmenting and labelling, by using an image processing algorithm and a morphological algorithm, cell nuclei included in dark field microscope images of a plurality of probe channels (101); inputting the dark field microscope images, in which cell nuclei are labelled, of the plurality of probe channels into a pre-built circulating abnormal cell detection model to acquire the number of staining signals included in each labelled cell nucleus in the dark field microscope image of each probe channel (102); and for each labelled cell nucleus, on the basis of the number of the staining signals included in the labelled cell nucleus in the acquired dark field microscope image of each probe channel, determining whether the labelled cell nucleus belongs to a circulating abnormal cell (103). The method can effectively improve the reliability of detecting the circulating abnormal cells.

Method and device for detecting circulating abnormal cells

A method and device for detecting circulating abnormal cells. The method for detecting the circulating abnormal cells comprises: respectively segmenting and labelling, by using an image processing algorithm and a morphological algorithm, cell nuclei included in dark field microscope images of a plurality of probe channels ( 101 ); inputting the dark field microscope images, in which cell nuclei are labelled, of the plurality of probe channels into a pre-built circulating abnormal cell detection model to acquire the number of staining signals included in each labelled cell nucleus in the dark field microscope image of each probe channel ( 102 ); and for each labelled cell nucleus, on the basis of the number of the staining signals included in the labelled cell nucleus in the acquired dark field microscope image of each probe channel, determining whether the labelled cell nucleus belongs to a circulating abnormal cell ( 103 ). The method can effectively improve the reliability of detecting the circulating abnormal cells.

Method and device for detecting circulating abnormal cells