Abstract: The present disclosure provides a method for optimizing mask parameters, and the method includes: acquiring a test pattern, light source parameters, and initial mask parameters, the initial mask parameters including a mask thickness and an initial mask sidewall angle; generating multiple sets of candidate mask parameters according to the initial mask sidewall angle in the initial mask parameters; the multiple sets of candidate mask parameters including different mask sidewall angles and the same mask thickness; obtaining an imaging contrast of each set of candidate mask parameters based on the test pattern and the light source parameters; and selecting an optimal mask sidewall angle from the multiple sets of candidate mask parameters according to the imaging contrasts.

Abstract: An assessment and control method, system and device for time-energy efficiency of CNC machine tools. The method comprises: comprehensively analyzing the influence of factors of the startup rate and extra startup frequency of a CNC machine tool on the energy efficiency of the CNC machine tool, and constructing a mathematical model of the time-energy efficiency of the CNC machine tool and the startup rate and extra startup frequency of the CNC machine tool. The time-energy efficiency of the CNC machine tool is monitored to realize the overlimit warning function for the time-energy efficiency of the CNC machine tool to finally control the time-energy efficiency of the CNC machine tool within a target range. The present invention analyzes the influence of the downtime loss of the CNC machine tool on the energy efficiency of the CNC machine tool, and can realize overlimit warning for time-energy efficiency of the CNC machine tool.

Abstract: A method for manufacturing a semiconductor device. A photolithographic coating, including a first film, a photolithographic film, and a second film, is formed on the to-be-connected structure. Refractive indexes of the first film and the second film are smaller than 1, so that the photolithographic coating forms an optical structure with a high reflection coefficient. The photolithographic coating is exposed to a light having a target wavelength through a mask. The to-be-connected structure is reflected in the photolithographic coating, and hence serves as another mask and is imaged to the photolithographic film. A pattern of the mask is simultaneously imaged to the photolithographic film. That is, both the to-be-connected structure and the pattern of the mask are imaged to a target region of the photolithographic film, and the target region corresponds to the to-be-connected structure.

Abstract: A display apparatus and method. The at least one processor of the display apparatus is configured to generate a first rotation angle based on a rotation gesture formed by contacting the display with at least two fingers of the user and moving at least one finger, wherein the first rotation angle is a rotation angle of the rotation gesture; draw a rotated image according to the first rotation angle, so as to cause the first rotation angle to associate with a second rotation angle of the rotated image, wherein at least two opposite vertices of the rotated image are always within a display range of the display, the rotated image does not exceed the display range of the display, and the second rotation angle is a rotation angle of the rotated image; and control the display to present the rotated image.

Abstract: Disclosed are a display apparatus and a processing method for the display apparatus with a camera. The display apparatus includes a camera, a sound collector and controller. The controller is configured for: starting shooting at least one image through the camera; in response to the at least one image not including a portrait of a user, starting obtaining a first test audio signal input from the user through the sound collector; in response to the first test audio signal, determining a target azimuth corresponding to the user; generating a rotation instruction for the camera according to the target azimuth of the user; sending the rotation instruction to the camera to adjust a shooting direction of the camera to the target azimuth.

Abstract: The present disclosure provides a method for optimizing mask parameters, and the method includes: acquiring a test pattern, light source parameters, and initial mask parameters, the initial mask parameters including a mask thickness and an initial mask sidewall angle; generating multiple sets of candidate mask parameters according to the initial mask sidewall angle in the initial mask parameters; the multiple sets of candidate mask parameters including different mask sidewall angles and the same mask thickness; obtaining an imaging contrast of each set of candidate mask parameters based on the test pattern and the light source parameters; and selecting an optimal mask sidewall angle from the multiple sets of candidate mask parameters according to the imaging contrasts.

Abstract: Provided is a method for correcting a lithography pattern of a surface plasma, including: forming a plurality of test patterns on a test mask; exposing a photoresist layer by using the test mask containing the test patterns to form a plurality of photoresist patterns; establishing a first data table based on a correspondence between the first test parameter and the second test parameter of the test pattern and the first exposure parameter and the second exposure parameter of the photoresist pattern; processing the first data table according to the first exposure parameter to obtain a second data table; and respectively correcting second test parameters of a plurality of design patterns according to the second data table to obtain corrected design patterns, and manufacturing a mask for exposure by using the corrected design patterns.

Abstract: A method for manufacturing a semiconductor device. A photolithographic coating, including a first film, a photolithographic film, and a second film, is formed on the to-be-connected structure. Refractive indexes of the first film and the second film are smaller than 1, so that the photolithographic coating forms an optical structure with a high reflection coefficient. The photolithographic coating is exposed to a light having a target wavelength through a mask. The to-be-connected structure is reflected in the photolithographic coating, and hence serves as another mask and is imaged to the photolithographic film. A pattern of the mask is simultaneously imaged to the photolithographic film. That is, both the to-be-connected structure and the pattern of the mask are imaged to a target region of the photolithographic film, and the target region corresponds to the to-be-connected structure.

Abstract: A display apparatus and method. The at least one processor of the display apparatus is configured to generate a first rotation angle based on a rotation gesture formed by contacting the display with at least two fingers of the user and moving at least one finger, wherein the first rotation angle is a rotation angle of the rotation gesture; draw a rotated image according to the first rotation angle, so as to cause the first rotation angle to associate with a second rotation angle of the rotated image, wherein at least two opposite vertices of the rotated image are always within a display range of the display, the rotated image does not exceed the display range of the display, and the second rotation angle is a rotation angle of the rotated image; and control the display to present the rotated image.

Abstract: Disclosed is an infrared thermal image classification and hot spot positioning method of a photovoltaic panel, comprising following steps: constructing a photovoltaic panel infrared thermal image data set, preprocessing the image data set, and dividing into a training set and a testing set according to a preset proportion; training an auxiliary generating countermeasure network based on the training set to obtain a trained generator and a trained discriminator, training an encoder by combining the image data in the training set with the generator, and fixing the parameters of a trained encoder; inputting the image data in the test set into a trained discriminator to obtain a photovoltaic image classification result; inputting images in the test set into the trained encoder, and then inputting the images into the generator for a reconstruction; comparing pixels of the input images with the reconstructed infrared thermal images, and positioning hot spots.

Abstract: Disclosed are a display apparatus and a processing method for the display apparatus with a camera. The display apparatus includes a camera, a sound collector and controller. The controller is configured for: starting shooting at least one image through the camera; in response to the at least one image not including a portrait of a user, starting obtaining a first test audio signal input from the user through the sound collector; in response to the first test audio signal, determining a target azimuth corresponding to the user; generating a rotation instruction for the camera according to the target azimuth of the user; sending the rotation instruction to the camera to adjust a shooting direction of the camera to the target azimuth.

Abstract: Disclosed is an unmanned food delivery device in a cabin. The device comprises a first conveying mechanism, a second conveying mechanism and a loading and unloading mechanism. The first conveying mechanism comprises a universal conveyor belt, and the universal conveyor belt is driven by universal wheels to convey lunch boxes, and the universal conveyor belt is used for conveying lunch boxes in a kitchen area and a passenger area in a reciprocating manner; multiple second conveying mechanisms are respectively arranged on a luggage rack bottom plate in the passenger area, the luggage rack bottom plate is provided with multiple feeding openings respectively corresponding to seats at intervals, each second conveying mechanism is respectively positioned at the feeding openings, the second conveying mechanisms are connected with the first conveying mechanism and used for conveying lunch boxes by the first conveying mechanism to the seats.

Abstract: A method for simultaneously determining fat-soluble vitamins and carotenoids in serum, and belonging to the technical field of analytical chemistry, includes an ionic liquid (IL) or a binary mixed solvent composed of an IL and another solvent is adopted as an extractant; the biological samples are pre-treated by liquid-liquid extraction (LLE) and then detected by high-performance liquid chromatography (HPLC); retinyl acetate and trans-?-apo-8?-carotenal are adopted as the internal standards for fat-soluble vitamins and carotenoids, respectively; and the internal standard method is adopted to establish standard curves for quantification based on the retention time and the UV-Vis absorption spectrum. Compared with the existing methods, in the disclosure, the pretreatment process is simple and easy to be conducted, the sample can be prepared in a short time, and the toxic and harmful organic solvent is used at a reduced amount.

Abstract: Methods of printing a three-dimensional object using co-reactive components are disclosed. Thermosetting compositions for three-dimensional printing are also disclosed.

Abstract: A method for simultaneously determining fat-soluble vitamins and carotenoids in serum, and belonging to the technical field of analytical chemistry, includes an ionic liquid (IL) or a binary mixed solvent composed of an IL and another solvent is adopted as an extractant; the biological samples are pre-treated by liquid-liquid extraction (LLE) and then detected by high-performance liquid chromatography (HPLC); retinyl acetate and trans-?-apo-8?-carotenal are adopted as the internal standards for fat-soluble vitamins and carotenoids, respectively; and the internal standard method is adopted to establish standard curves for quantification based on the retention time and the UV-Vis absorption spectrum. Compared with the existing methods, in the disclosure, the pretreatment process is simple and easy to be conducted, the sample can be prepared in a short time, and the toxic and harmful organic solvent is used at a reduced amount.

Abstract: Methods of printing a three-dimensional object using co-reactive components are disclosed. Thermosetting compositions for three-dimensional printing are also disclosed.