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: An information insertion method performed by a computer device relates to the field of information processing. The method includes: displaying an editing interface corresponding to an online document; receiving a contact insertion operation in the editing interface; in response to the contact insertion operation, inserting a contact corresponding to a first account into the online document; and displaying the contact corresponding to the first account in the online document, the contact corresponding to the first account providing a communication portal for instant messaging with the first account through the online document.

Abstract: Embodiments of the present disclosure provide an acquisition temperature circuit, method, and device, a storage medium, and a charging and power distribution system assembly. The acquisition temperature circuit includes a main control board and a power board provided with a first thermistor, a second thermistor, and an optocoupler isolation circuit. The first thermistor is connected to the optocoupler isolation circuit, the optocoupler isolation circuit is connected to the main control board, and the second thermistor is connected to the main control board. In the technical solutions provided by the embodiments of the present disclosure, two thermistors are provided on the power board of the charging and power distribution system assembly, avoiding temperature measurement errors caused by over-range of the thermistor located on the power board, improving the accuracy of temperature acquisition of the charging and power distribution system assembly, and thus improving the charging safety of the power battery.

Abstract: A multimedia processing method includes rendering, through a first native container node of a dynamic page, a content node associated with the first native container node to play multimedia content. The method further includes generating a non-dynamic page in response to a first page switching operation triggered in the dynamic page, and creating a second native container node in a second node tree of the non-dynamic page, the second native container node being supported by the native application framework provided by the operating system. The method further includes disassociating the content node from the first native container node, and establishing an association between the content node and the second native container node. The method further includes rendering, through the second native container node, the content node in the non-dynamic page to continue playing the rendered multimedia content in a portion of the generated non-dynamic page.

Abstract: A calibration method and a tuning method for an on-chip differential active RC filter are provided. The calibration method comprises: obtaining zero-crossing time of a differential signal outputted by a single-pole point real number filter by analyzing the single-pole point real number filter; setting a reference clock period according to the relationship between the zero-crossing time and the bandwidth of the single-pole point real number filter, and setting a calibration working time sequence according to the reference clock period; and scanning an RC configuration of an RC array according to the calibration working time sequence to realize calibration of the RC array.

Abstract: Arginine deiminase (ADI)-containing genetically engineered Corynebacterium glutamicum (C. glutamicum), a fusion protein cipA-arc, use thereof, and a method for preparing [14/15N]-L-citrulline through enzymatic catalysis are provided. The ADI-containing genetically engineered Corynebacterium glutamicum (C. glutamicum) has a deposit number of CGMCC No. 19404, which expresses a fusion protein cipA-arc. Both the genetically engineered strain and the fusion protein cipA-arc can be used to convert [14/15N]-L-arginine into [14/15N]-L-citrulline.

Abstract: Disclosed are a convex-linear bi-plane probe and its application method in prostate volume calculation. The present invention adopts the following technical solution: comprising a probe housing and a probe assembly contained in the probe housing, the probe assembly comprising a linear probe and a convex probe contained at the end of the linear probe, with the linear element inside the linear probe and the convex element inside the convex probe connected as one piece. The benefits of the present invention are that: by setting a convex probe at the end of the linear probe, and by connecting the linear element and the convex element as one, the volume of the probe can be significantly reduced. Furthermore, the use of convex-linear biplane probe and its integrated design collect two orthogonal ultrasound images of the prostate, which improves the accuracy of prostate volume calculation.

Abstract: Disclosed is a method for estimating ultrasound attenuation coefficient by use of aberration compensation and the reference phantom method. Measurements on a human sample at a single transmit frequency and on multiple reference phantoms at a plurality of transmit frequencies are performed respectively. The center frequencies of the echo signals at the depth of the top edge of the region of interest are calculated. A specific reference phantom at a specific transmit frequency is selected by the echo signals whose center frequencies are closest to the center frequencies of the echo signals from the human sample at the aforementioned depth to compensate for the aberration. Then the spectra of the echo signals from the selected reference phantom at the selected transmit frequency and the spectra from the echo signals from the human sample are used to estimate the attenuation coefficient of the human sample by following the reference phantom method.

Abstract: Provided is a panel type radiator with reinforcing ribs and cooling fins in lintel welding, which includes multiple cooling fins, two oil collecting tubes, multiple reinforcing ribs and multiple welding seams. Each cooling fin is formed by welding two cooling sub-fins oppositely arranged. An edge of a long side of the cooling fin intersects with an outer surface of the reinforcing rib, and a gap suitable for a lintel-shaped weld is provided at an intersection. A welding material droplet weld is formed between an outer edge at an attached position of the long side of the cooling fin and the outer surface of the reinforcing rib, and the shape of the weld is lintel-shaped. The lintel-shaped weld is divided into three regions. The welding material fusion welding connection lintel region is self-fusion welding metal of the welding material.

Abstract: An optical fiber connector includes a connecting unit, an adapter unit, and an attenuation unit. The adapter unit includes an insertion seat connected removably to a main housing of the connecting unit, and two guide frame bodies located respectively at two opposite sides of the insertion seat in a transverse direction. The insertion seat has two insertion holes spaced apart in the transverse direction and extending in a front-rear direction. Each guide frame body extends in the front-rear direction away from the connecting unit. The attenuation unit includes two attenuation components, two rear ferrules, and two front ferrules. The attenuation components are arranged in the transverse direction and disposed within the main housing. The rear ferrules respectively extend rearwardly from rear ends of the attenuation components into the insertion holes. The front ferrules respectively extend forwardly from front ends of the attenuation components through and outwardly of the main housing.

Abstract: A conference data processing method includes acquiring a first meeting list of meetings created by a user, meetings in the first meeting list having been created by the user through an instant messaging (IM) client. The IM client includes an interface for calling a software development kit (SDK) of a separate conference application implementing at least one of audio or video conferencing. The method further includes requesting, through a fusion server, a server of the conference application to create a second meeting list according to the first meeting list, and receiving, through the fusion server, the second meeting list transmitted by the server of the conference application. The second meeting list includes meetings that correspond respectively to the meetings in the first meeting list. The method further includes establishing an association relationship between a meeting in the first meeting list and a meeting in the second meeting list.

Abstract: Provided is a lamp component and a lamp device. The lamp component includes a reflective layer, having a first face and a second face which is opposite the first face and can be attached to a predetermined position, and a transmissive layer, provided on the first face of the reflective layer, the transmissive layer being doped with fluorescent powder particles, so when first light emitted from an external directional light source is incident on the lamp component from the transmissive layer, a part of the first light interacts with the fluorescent powder particles in the transmissive layer to excite the fluorescent powder particles, to produce second light of a desired color.

Abstract: Innovations in intra block copy (“BC”) prediction mode facilitate intra BC prediction that is more effective in terms of rate-distortion performance and/or computational efficiency of encoding and decoding. For example, some of the innovations provide ways to select block vector (“BV”) values more effectively. Other innovations provide ways to encode/decode BV values more efficiently. Still other innovations address how to perform in-loop deblock filtering when a block has intra BC prediction mode, or address how to perform intra BC prediction when constrained intra prediction is enabled.

Abstract: Innovations in intra block copy (“BC”) prediction mode facilitate intra BC prediction that is more effective in terms of rate-distortion performance and/or computational efficiency of encoding and decoding. For example, some of the innovations provide ways to select block vector (“BV”) values more effectively. Other innovations provide ways to encode/decode BV values more efficiently. Still other innovations address how to perform in-loop deblock filtering when a block has intra BC prediction mode, or address how to perform intra BC prediction when constrained intra prediction is enabled.

Abstract: Innovations in unified intra block copy (“BC”) and inter prediction modes are presented. In some example implementations, bitstream syntax, semantics of syntax elements and many coding/decoding processes for inter prediction mode are reused or slightly modified to enable intra BC prediction for blocks of a frame. For example, to provide intra BC prediction for a current block of a current picture, a motion compensation process applies a motion vector that indicates a displacement within the current picture, with the current picture being used as a reference picture for the motion compensation process. With this unification of syntax, semantics and coding/decoding processes, various coding/decoding tools designed for inter prediction mode, such as advanced motion vector prediction, merge mode and skip mode, can also be applied when intra BC prediction is used, which simplifies implementation of intra BC prediction.

Abstract: Innovations in encoding or decoding when switching color spaces are presented. For example, some of the innovations relate to signaling of control information for adaptive color space transformation (“ACT”). Other innovations relate to ACT operations. These innovations can improve coding efficiency when switching between color spaces during encoding and decoding.

Abstract: Innovations in unified intra block copy (“BC”) and inter prediction modes are presented. In some example implementations, bitstream syntax, semantics of syntax elements and many coding/decoding processes for inter prediction mode are reused or slightly modified to enable intra BC prediction for blocks of a frame. For example, to provide intra BC prediction for a current block of a current picture, a motion compensation process applies a motion vector that indicates a displacement within the current picture, with the current picture being used as a reference picture for the motion compensation process. With this unification of syntax, semantics and coding/decoding processes, various coding/decoding tools designed for inter prediction mode, such as advanced motion vector prediction, merge mode and skip mode, can also be applied when intra BC prediction is used, which simplifies implementation of intra BC prediction.

Abstract: Approaches to robust encoding and decoding of escape-coded pixels in a palette mode are described. For example, sample values of escape-coded pixels in palette mode are encoded/decoded using a binarization process that depends on a constant value of quantization parameter (“QP”) for the sample values. Or, as another example, sample values of escape-coded pixels in palette mode are encoded/decoded using a binarization process that depends on sample depth for the sample values. Or, as still another example, sample values of escape-coded pixels in palette mode are encoded/decoding using a binarization process that depends on some other fixed rule. In example implementations, these approaches avoid dependencies on unit-level QP values when parsing the sample values of escape-coded pixels, which can make encoding/decoding more robust to data loss.

Abstract: Approaches to robust encoding and decoding of escape-coded pixels in a palette mode are described. For example, sample values of escape-coded pixels in palette mode are encoded/decoded using a binarization process that depends on a constant value of quantization parameter (“QP”) for the sample values. Or, as another example, sample values of escape-coded pixels in palette mode are encoded/decoded using a binarization process that depends on sample depth for the sample values. Or, as still another example, sample values of escape-coded pixels in palette mode are encoded/decoding using a binarization process that depends on some other fixed rule. In example implementations, these approaches avoid dependencies on unit-level QP values when parsing the sample values of escape-coded pixels, which can make encoding/decoding more robust to data loss.