Abstract: This invention disclosed a full-space intelligent detection method and system for underground drainage networks, as well as storage media, including the following steps: image acquisition, intelligent image denoising, internal pipe defect segmentation, concealed defect detection around the pipe, 3D reconstruction with volume quantification, and pipeline life prediction. This invention introduced a bionic four-wheel-drive, all-terrain detection robot that can effectively navigate through mud and flowing water-challenges that hinder traditional detection devices. By leveraging deep learning algorithms as well as various techniques of computing vision, 3D reconstruction, and point cloud processing, the system thoroughly analyzed collected data to determine defect types and precise locations. Utilizing this analysis, precise location of different defect type and quantitative measurement of their dimensions can be realized.

Abstract: The present disclosure provides methods, apparatuses, and computer-readable mediums for image processing. In some embodiments, a method of image processing includes acquiring, from a user, a first image. The method further includes removing, using an image de-filter network, a filter effect applied to the first image to generate a second image. The method further includes obtaining, based on the first image and the second image, an image filter corresponding to the filter effect. The method further includes rendering a third image using the obtained image filter to output a fourth image.

Abstract: A tool storage system is provided that includes a drawer, and an optical system configured to detect presence of an object in the drawer. The optical system includes a photoelectric sensor and processing circuitry. The photoelectric sensor includes a light transmitter configured to emit pulsed light, and a photoelectric receiver configured to convert a reflection of the pulsed light off of the object to an electrical signal that indicates proximity of the object and thereby the presence of the object in the drawer. The processing circuitry is configured to output a pulse-frequency modulation (PFM) signal from which the light transmitter is driven to emit the pulsed light. The PFM signal has a frequency that is adjustable to control an average intensity of the pulsed light, the frequency calibrated for a type of the object and an effective range of the photoelectric sensor.

Abstract: A base station antenna comprises a reflector; a phase shifter that includes a phase shifter printed circuit board; and a radiating element that includes at least one feed stalk and a radiator mounted on the feed stalk forwardly of the reflector. The feed stalk is mounted directly on the phase shifter printed circuit board.

Abstract: A method for processing color data, which includes steps of: obtaining initial color data of a target display area collected by a color sensor; converting the initial color data into color data to be processed in a target color space that includes a saturation channel and brightness channel; and adjust an initial saturation value of the color data to be processed in the saturation channel and an initial brightness value of the color data to be processed in the brightness channel to obtain first target color data, the first target color data is applied to adjust a color rendering of the light source so that a color rendering error between the color rendering of the light source and a color rendering of the target display area is within an error margin.

Abstract: The present invention discloses a modified biological bone mineral scaffold doped based on lithium magnesium phosphate, which is obtained by immersing a calcined bovine or porcine cancellous bone mineral porous scaffold into a solution containing one or more of active metal ions of magnesium, lithium, strontium, zinc, iron and calcium and a phosphorus source composite solution for hydrothermal reaction, baking, drying and calcining at a high temperature. The modified biological bone mineral scaffold doped based on lithium magnesium phosphate obtained in the present invention can effectively stabilize the doped magnesium lithium phosphate and one or more of other osteogenic active ions of strontium, zinc, iron and calcium. The material maintains the three-dimensional interconnected mesh structure and natural crystal structure of the calcined bovine or porcine cancellous bone mineral porous scaffold, and has calcium phosphate crystals containing active ions.

Abstract: An apparatus (200) such as an electronic torque wrench (100) is provided that includes an amplifier (204), analog-to-digital converter (206) and processing circuitry (208). The amplifier (204) is configured to receive an analog electrical signal that varies in voltage with an applied torque, and increase amplitude of the analog electrical signal to produce an amplified, analog electrical signal. The amplifier (204) has a gain that is controllable and set based on a measured torque. The analog-to-digital converter (206) is configured to convert the amplified, analog electrical signal to an equivalent digital electrical signal. And the processing circuitry (208) is configured to determine the torque value of the torque applied to the fastener from the equivalent digital electrical signal, and output an indication of the torque value. A method of determining a torque value of an applied torque is also provided.

Abstract: A method of preparing an antibacterial anti-yellowing ZnO antimony-free polyester fiber is provided. In direct spinning of antimony-free polyester melt, an anti-yellowing nano antibacterial agent is introduced into a polymerization process of antimony-free polyester to obtain the antibacterial anti-yellowing ZnO antimony-free polyester fiber; the anti-yellowing nano antibacterial agent is a surface-deposited or coated nano ZnO of a phosphate ester small molecule having a function of resisting thermal oxidative degradation, the phosphate ester small molecule is bound to the nano ZnO by van der Waals force, hydrogen bonding or covalent bonding, and the phosphate ester small molecule is a phosphate ester molecule with a molecular weight of less than 500 Da; the content of the nano ZnO in the antibacterial anti-yellowing ZnO antimony-free polyester fiber is not lower than 1.2 wt %, and the yellowing index Yi value of the antibacterial anti-yellowing ZnO antimony-free polyester fiber is not higher than 16.1.

Abstract: A dual-polarized radiator assembly for base station antennas, which includes two orthogonal dipoles, where each dipole includes two dipole arms and each dipole arm has a radiating portion. Each radiating portion may be a sheet metal component and have an outer contour that forms a first square, in which, two adjacent inner sides of every two adjacent first squares extend parallel to each other. The radiator assembly may have a compact size and may have improved cloaking performance.

Abstract: A tool storage system is provided that includes a cabinet, a drawer assembly installed in the cabinet, a lock assembly, and processing circuitry. The drawer assembly includes a drawer operably coupled to the cabinet to enable the drawer to slidably open and close, and a sensor configured to detect a user action to open the drawer. The lock assembly is operably coupled to and between the cabinet and the drawer, and includes an electric lock configured to engage a latch when the drawer is closed, and disengage the latch to enable the drawer to open. The process-ing circuitry operably coupled to the sensor and the electric lock. The processing circuitry is configured to receive a signal from the sensor responsive to detection of the user action to open the drawer, and control the electric lock to disengage the latch responsive to the signal.

Abstract: Linked packet tracing techniques for software load balancers are described, as leveraging a client identifier generated to link packet traces between packets of a service provider system. In one example, a client-side packet is received from a client device by a processing system. From this, a client identifier is generated by the processing system based on the client device. In response, a modified client-side packet is generated by the processing system by modifying the client-side packet to include the client identifier. The modified client-side packet is transmitted by the processing system to a server system. A server-side packet is then received by the processing system from the server system. In response, the server-side packet is detected as including the client-identifier. From this, the server-side packet is linked to at least the modified client-side packet based on the detecting, and the processing system outputs a result of the linked packets.

Abstract: A tool storage system is provided that includes a drawer, and an optical system configured to detect presence of an object in the drawer. The optical system includes a photoelectric sensor and processing circuitry. The photoelectric sensor includes a light transmitter configured to emit pulsed light, and a photoelectric receiver configured to convert a reflection of the pulsed light off of the object to an electrical signal that indicates proximity of the object and thereby the presence of the object in the drawer. The processing circuitry is configured to output a pulse-width modulation (PWM) signal from which the light transmitter is driven to emit the pulsed light. The PWM signal has a duty cycle that is adjustable to control an average intensity of the pulsed light, the duty cycle calibrated for a type of the object and an effective range of the photoelectric sensor.

Abstract: A base station antenna comprises first and second RF ports, first and second columns of radiating elements that each extend in a longitudinal direction, and a power coupling circuit. A first radiating element in the second column is coupled to the first RF port via the power coupling circuit, and the phase of the RF signal fed to the first radiating element in the second column is not advanced as compared to the phase of the RF signal fed to the first radiating element in the first column. A second radiating element in the first column is coupled to the second RF port via the power coupling circuit, and the phase of the RF signal fed to the second radiating element in the first column is not advanced as compared to the phase of the RF signal fed to the second radiating element in the second column.

Abstract: The present disclosure provides methods, apparatuses, and computer-readable mediums for image processing. In some embodiments, a method of image processing includes acquiring, from a user, a first image. The method further includes removing, using an image de-filter network, a filter effect applied to the first image to generate a second image. The method further includes obtaining, based on the first image and the second image, an image filter corresponding to the filter effect. The method further includes rendering a third image using the obtained image filter to output a fourth image.

Abstract: A method for solving a bright line scratched during lifting of a large-size silicon wafer comprises the steps of tooling preparation, crystal bar bonding, lifting preparation, and lifting. By optimizing and adjusting a lifting process, using a hollow plastic board and adding line-cutting fluid during lifting, the line-cutting fluid is attached to a diamond wire saw, which reduces the surface friction of the diamond wire saw, and improves lubricity. Furthermore, by adjusting the lifting process, lifting speeds varies due to different adsorption forces at different positions, so the diamond wire saw is prevented from scratching the surface of the silicon wafer, and the problem of scratching the bright line on the surface of the silicon wafer during lifting of the large-size silicon wafer is solved.

Abstract: A method of detecting a defect in a connecting member of a radio unit in a radio site includes applying an artificial radio traffic load to a first radio unit and at least a second radio unit, such that the radio traffic load experienced by the first and the second radio unit is at a same level, measuring power supplied to the first radio unit via a first connecting member and power supplied to the second radio unit via a second connecting member at an end of each connecting member terminating at a device configured to supply power to the radio units, and determining from the measured power and an expected nominal power loss of the first and the second connecting member if there is power loss in at least one of the first and the second connecting member indicating a defect.

Abstract: A cross-polarized dipole radiating element includes: (i) a substrate having a quad-arrangement of radiating arms on a forward-facing surface thereof, and a radio-frequency (RF) coupled loop on a rear-facing surface thereof, and (ii) a feed stalk electrically coupled to the quad-arrangement of radiating arms. The RF coupled loop can include a quad-arrangement of rear-facing coupling elements, which extend opposite corresponding ones of the quad-arrangement of radiating arms, and a quad-arrangement of metal traces, which are configured to electrically couple the quad-arrangement of coupling elements together into a closed electrical loop.

Abstract: A tool storage system is provided that includes a drawer, and an optical system configured to detect presence of an object in the drawer. The optical system includes a photoelectric sensor and processing circuitry. The photo-electric sensor includes a light transmitter configured to emit pulsed light. and a photoelectric receiver configured to convert a reflection of the pulsed light off of the object to an electrical signal that indicates proximity of the object and thereby the presence of the object in the drawer. The processing circuitry is configured to output a pulse-frequency modulation (PFM) signal from which the light transmitter is driven to emit the pulsed light. The PFM signal has a frequency that is adjustable to control an average intensity of the pulsed light, the frequency calibrated for a type of the object and an effective range of the photoelectric sensor.

Abstract: Implementations relate to determination and display of estimated hold durations for calls. In some implementations, a computer-implemented method includes obtaining an identifier of a target entity, the identifier usable by a first call device to initiate a call between the first call device and the target entity. A hold duration is determined that is an estimated amount of time before the call is matched to a human agent when the call is initiated at a particular time that is prospective to a current time. The hold duration is determined based on previous calls between one or more call devices and the target entity. The hold duration is provided for display by the first call device prior to the initiation of the call between the first call device and the target entity.

Abstract: Provided are an electron detection device and a scanning electron microscope. The electron detection device includes: a reflective energy analyzer including first and second control electrodes that are sequentially arranged in an incidence direction of an electron beam; a first detector disposed at a side of the second control electrode away from the first control electrode; a second detector disposed at a side of the first control electrode away from the second control electrode; and a conductive shielding tube penetrating the first and second control electrodes in the incidence direction and configured to shield an electric field generated by the reflective energy analyzer, allowing the electron beam to pass through and be incident on the target sample. First control electrode is configured to generate a first electric field between the first and second control electrodes. The first electric field is configured to guide the secondary electron to the first detector.