Abstract: Disclosed is a smart magic cube controller. The smart magic cube controller includes: a controller body, the controller body has a plurality of surfaces, and at least one surface of the controller body is configured to be a display module; an posture sensing module; and a control module in signal connection with the posture sensing module, wherein the control module is configured to determine a current top surface of the controller body according to placement state information collected by the posture sensing module, and transmits, according to the determined current top surface, a scene mode control instruction corresponding to the current top surface, and when the display module is located on a surface, other than the current top surface and the bottom surface of the controller body, the control module is configured to control a display picture of the display module to be displayed upright.

Abstract: A photodynamic therapy and photoacoustic measurement coexistence system includes a pulsed light source configured to emit a pulsed light; a light-splitting unit, disposed on an optical path of the pulsed light, and configured to split the pulsed light into a first split light and a second split light; a reflecting unit, disposed on an optical path of the first split light, and configured to reflect the first split light into a reflected light; a first lens, disposed on an optical path of the reflected light, and configured to refract the reflected light to an irradiated surface to form a first light spot; and a second lens, disposed on an optical path of the second split light, and configured to refract the second split light to the irradiated surface to form a second light spot.

Abstract: A wafer inspection method is provided. The wafer inspection method includes identifying a plurality of candidate regions on an image of a DUT on a wafer; generating a confidence score for each of the plurality of candidate regions, wherein the confidence score indicates a probability of a candidate region including a probe mark; selecting a first candidate region having the highest confidence score as a selected region; determining whether a second candidate region in the plurality of candidate regions includes the same probe mark as the first candidate region; and eliminating the second candidate region if the second candidate region includes the same probe mark as the first candidate region.

Abstract: Provided are a networking and positioning method, system and device, and a storage medium. The method includes: acquiring, by means of Bluetooth communication, Bluetooth broadcast positioning data broadcast by a positioning master base station in a preset positioning region, a positioning beacon and the positioning master base station are each provided with a Bluetooth communication device; and networking and positioning the positioning beacon on the basis of the Bluetooth broadcast positioning data.

Abstract: A wafer inspection system is provided. The wafer inspection system includes a memory unit configured to store an image of a device under test (DUT) on a wafer, an image-uploading unit configured to upload the image to a processing unit, and a processing unit. The processing unit is configured to identify a plurality of candidate regions on the image; generate a confidence score for each of the plurality of candidate regions, wherein the confidence score indicates a probability of a candidate region including a probe mark; select a first candidate region having the highest confidence score as a selected region; determine whether a second candidate region in the plurality of candidate regions includes the same probe mark as the first candidate region; and eliminate the second candidate region if the second candidate region includes the same probe mark as the first candidate region.

Abstract: A device and method for absorbing electromagnetic waves can include a honeycomb sheet formed by a plurality of interconnected hexagon cells arranged in rows. The hexagon cells are made up of sidewalls, each sidewall formed by two surfaces that converge at a top of the sidewall and diverge from the top to a bottom of the sidewall such that a thickness of the sidewalls increases from top to bottom and an angle forms between the two surfaces at the top of the sidewall. In an example, the angle is about 8 degrees. The honeycomb sheet can be coated with a magnetic, composite coating to increase electromagnetic shielding. An example coating includes magnetic multi-granular nanoclusters (MGNC) and multi-walled carbon nanotubes (MWCNT). A base layer can be attached to the honeycomb sheet for mechanical stability and additional absorption. The device is suitable for radar absorbing materials (RAM) for aerospace and military applications.

Abstract: Methods, system, and apparatus for substrate processing are provided for flowing a gas into a substrate processing chamber housing a substrate clamped to a chuck, wherein the gas is introduced at a location above the substrate; and while the gas is introduced, dechucking the substrate.

Abstract: A wafer inspection method is provided. The wafer inspection method includes identifying a plurality of candidate regions on an image of a DUT on a wafer; generating a confidence score for each of the plurality of candidate regions, wherein the confidence score indicates a probability of a candidate region including a probe mark; selecting a first candidate region having the highest confidence score as a selected region; determining whether a second candidate region in the plurality of candidate regions includes the same probe mark as the first candidate region; and eliminating the second candidate region if the second candidate region includes the same probe mark as the first candidate region.

Abstract: A wafer inspection system is provided. The wafer inspection system includes a memory unit configured to store an image of a device under test (DUT) on a wafer, an image-uploading unit configured to upload the image to a processing unit, and a processing unit. The processing unit is configured to identify a plurality of candidate regions on the image; generate a confidence score for each of the plurality of candidate regions, wherein the confidence score indicates a probability of a candidate region including a probe mark; select a first candidate region having the highest confidence score as a selected region; determine whether a second candidate region in the plurality of candidate regions includes the same probe mark as the first candidate region; and eliminate the second candidate region if the second candidate region includes the same probe mark as the first candidate region.

Abstract: A detection system includes a loadcell connected to a gear and motor of a crystal puller apparatus to measure force applied to the gear in a time domain. The data is analyzed though a Fourier transform to obtain data in the frequency domain. The frequency domain data includes an amplitude which corresponds to mechanical wear of the gear. The time domain data is compared against a threshold amplitude to determine if the gears have mechanical wear such that preventative maintenance can be performed on the motor.

Abstract: The present disclosure provides a method for preparing a high cohesive energy adsorbent for fluoride removal, which includes the following steps: S1. adding NaHF2—NiF·6H2O additive to SiCO ceramic powder, and sintering at a temperature of 310-330° C. for 18-22h to obtain a sintered substance; S2. grinding the sintered substance to obtain particles with a size of 2-3 mm, and mixing the particles with polyacrylonitrile to form a composite polymer; and S3. molding the composite polymer by a vacuum baking process at a temperature of 75-85° C., then performing ball milling and sieving to obtain the high cohesive energy adsorbent for fluoride removal. The high cohesive energy adsorbent for fluoride removal may be used in the adsorption and separation of the C2F6—CHF3—CClF3 mixture system, and the contents of CHF3 and CClF3 are lowered to less than 10ppmv.

Abstract: The present disclosure provides a control method for a rectification and purification system of electronic-grade chlorine trifluoride. A rectification device of electronic-grade chlorine trifluoride includes a two-stage cryogenic rectification device including a low-boiling column and a high-boiling column. An extraction agent is arranged in the two-stage cryogenic rectification device for further dissociating associated molecules of hydrogen fluoride and chlorine trifluoride to meet the requirements of electronic-grade chlorine trifluoride. The reflux ratio parameter stability of a vapor-liquid (chlorine trifluoride-hydrogen fluoride) phase equilibrium system can be effectively improved by a column plate temperature control method, thus realizing wide dynamic smooth running under various working conditions.

Abstract: The present disclosure provides a control method for a rectification and purification system of electronic-grade chlorine trifluoride. A rectification device of electronic-grade chlorine trifluoride includes a two-stage cryogenic rectification device including a low-boiling column and a high-boiling column. An extraction agent is arranged in the two-stage cryogenic rectification device for further dissociating associated molecules of hydrogen fluoride and chlorine trifluoride to meet the requirements of electronic-grade chlorine trifluoride. The reflux ratio parameter stability of a vapor-liquid (chlorine trifluoride-hydrogen fluoride) phase equilibrium system can be effectively improved by a column plate temperature control method, thus realizing wide dynamic smooth running under various working conditions.

Abstract: The present disclosure provides a method for preparing a high cohesive energy adsorbent for fluoride removal, which includes the following steps: S1. adding NaHF2—NiF·6H2O additive to SiCO ceramic powder, and sintering at a temperature of 310-330° C. for 18-22h to obtain a sintered substance; S2. grinding the sintered substance to obtain particles with a size of 2-3 mm, and mixing the particles with polyacrylonitrile to form a composite polymer; and S3. molding the composite polymer by a vacuum baking process at a temperature of 75-85° C., then performing ball milling and sieving to obtain the high cohesive energy adsorbent for fluoride removal. The high cohesive energy adsorbent for fluoride removal may be used in the adsorption and separation of the C2F6—CHF3—CClF3 mixture system, and the contents of CHF3 and CClF3 are lowered to less than 10ppmv.

Abstract: A device and method for absorbing electromagnetic waves can include a honeycomb sheet formed by a plurality of interconnected hexagon cells arranged in rows. The hexagon cells are made up of sidewalls, each sidewall formed by two surfaces that converge at a top of the sidewall and diverge from the top to a bottom of the sidewall such that a thickness of the sidewalls increases from top to bottom and an angle forms between the two surfaces at the top of the sidewall. In an example, the angle is about 8 degrees. The honeycomb sheet can be coated with a magnetic, composite coating to increase electromagnetic shielding. An example coating includes magnetic multi-granular nanoclusters (MGNC) and multi-walled carbon nanotubes (MWCNT). A base layer can be attached to the honeycomb sheet for mechanical stability and additional absorption. The device is suitable for radar absorbing materials (RAM) for aerospace and military applications.

Abstract: Provided are a networking and positioning method, system and device, and a storage medium. The method comprises: acquiring, by means of Bluetooth communication, Bluetooth broadcast positioning data broadcast by a positioning master base station in a preset positioning region, wherein a positioning beacon and the positioning master base station are each provided with a Bluetooth communication device; and networking and positioning the positioning beacon on the basis of the Bluetooth broadcast positioning data.

Abstract: A method for preparing a modified sodium fluoride adsorbent includes the following steps: S1. producing spherical particles of NiCl12.6H2O and porous NaF with a mass ratio of 1:3.0-3.5; S2. sintering the spherical particles in a vacuum environment at a temperature of 120-130° C. for 10-40 hours and at a temperature of 280-300° C. for 10-40 hours, respectively, to form an adsorbent intermediate with a NiCl2—NaF framework, wherein, a vacuum degree is less than or equal to 500 pa; and S3. treating the adsorbent intermediate by fluorine-nitrogen mixtures with high purity to obtain the novel sodium fluoride adsorbent having NiCl2—NaF framework. The modified sodium fluoride adsorbent can effectively separate chlorine trifluoride and hydrogen fluoride molecules, and the optimal adsorption rate of hydrogen fluoride is upgraded to more than 98%. While, the optimal adsorption rate of chlorine trifluoride is lowered down to around 3%.

Abstract: A nasopharyngeal airway device includes an elongate body having a distal end and a proximal end. The elongate body has an outer surface defining one or more open channels extending along the elongate body. The nasopharyngeal airway device includes a securement component securely coupled to the elongate body. The securement component is configured to secure the nasopharyngeal airway device within a nostril of an individual.

Abstract: The disclosure discloses a method for preparing a ??-Fe4N soft magnetic material by using liquid nitrogen through high-speed ball milling, and belongs to the field of the soft magnetic material. According to the method of the disclosure, high energy in the liquid nitrogen is used for obtaining a nanometer material FexN with a nitrogen atom supersaturation degree through cryogrinding. At a low temperature, the material is very brittle, and a surface volume ratio is very high, so that a content of nitrogen atoms adsorbed on a surface of a sample is as high as 22%. Through 300° C. post-annealing, ??-Fe4N is directly obtained from ?-Fe through phase change, so that a nanometer crystal ??-Fe4N soft magnetic material is prepared.

Abstract: Disclosed is a smart magic cube controller. The smart magic cube controller includes: a controller body (1), the controller body (1) has a plurality of surfaces, and at least one surface of the controller body (1) is configured to be a display module (2); an posture sensing module (3); and a control module (4) in signal connection with the posture sensing module (3), wherein the control module (4) is configured to determine a current top surface of the controller body (1) according to placement state information collected by the posture sensing module (3), and transmits, according to the determined current top surface, a scene mode control instruction corresponding to the current top surface, and when the display module (2) is located on a surface, other than the current top surface and the bottom surface of the controller body (1), the control module (4) is configured to control a display picture of the display module (2) to be displayed upright.