Abstract: A first communication device obtains first data, and maps, based on a mapping relationship between the first data and a time-frequency resource, the first data to the time-frequency resource for transmission. The first data includes at least two differential data symbols or at least two differential spreading data symbols. The mapping relationship includes that two adjacent data units in the first data are adjacent in time domain or frequency domain on the time-frequency resource. The first communication device may flexibly select, based on different scenarios of a time offset or a frequency offset, a mapping relationship between the first data and the time-frequency resource. Based on the mapping relationship, when the time offset or the frequency offset causes a change in frequency domain channels, frequency domain channels through which the two adjacent data units in the first data pass can be close.

Abstract: This application relates to the field of terminal technologies and provides an incoming call reminder system and method and an electronic device, to alleviate a problem that a plurality of devices indistinguishably perform incoming call reminding for a same incoming call request. Specific solutions are as follows: The first device receives a first incoming call request when the first device and the one or more second devices meet a first condition, where the first condition includes a screen off state; and in response to the first incoming call request, a third device in the one or more second devices and the first device perform incoming call reminding, and a fourth device other than the third device in the one or more second devices does not perform a vibration and/or ringing reminding, where the third device is a wearable device, and the third device is in a worn state.

Abstract: The present invention relates to a polycarbonate composition including the following components, relative to the total weight of the composition: A) 50-95 wt. % of an aromatic polycarbonate; B) 1-20 wt. % of a phosphorus-containing flame retardant; C) 0.3-0.7 wt. % of an anti-dripping agent; D) 0.1-6 wt. % of a hydrolysis stabilizer; and E) 1.5-9 wt. % of a polysilsesquioxane. The present invention also relates to a shaped article made from the composition. The polycarbonate composition according to the present invention has a good combination of hydrolysis resistance and flame retardance.

Abstract: Disclosed are a navigation method and a self-walking device. The navigation method is applied to the self-walking device and includes: determining a candidate region after a current task is completed; determining whether a reachable position adjacent to the candidate region exists; and controlling, in response to an existence of the reachable position adjacent to the candidate region, the self-walking device to reach the reachable position, and controlling the self-walking device to attempt to enter the candidate region to operate in the candidate region.

Abstract: A method for evaluating a production potential for volume fracturing of a shale oil reservoir and determining a soaking time is discloses. The method may comprise: obtaining a core column; performing a saturated oil treatment on the core column; obtaining an initial fracture porosity parameter of the saturated oil-treated core column; soaking the core column after a CT scanning into a fracturing fluid to test the core mass increase amount at different immersion durations; obtaining the fracture porosity increase amount of the core column at different soaking times, and calculating a weight of newly added fracture porosity-fillable fracturing fluid; generating a curve of the core mass increase amount and a curve of the weight of the newly added fracture porosity-fillable fracturing fluid at different immersion durations; comparing a mass increase amount per volume unit of a core, and ranking a e mass increase amount per volume unit of the core to determine the production increase potential.

Abstract: Solder paste consisting of 85 to 92% by weight of a tin-based solder and 8 to 15% by weight of a flux, wherein the flux comprises i) 30 to 50% by weight, based on its total weight, of a combination of at least two optionally modified natural resins, ii) 5 to 20% by weight, based on its total weight, of at least one low-molecular carboxylic acid; and iii) 0.4 to 10% by weight, based on its total weight, of at least one amine, and wherein the combination of the optionally modified natural resins has an integral molecular weight distribution of 45 to 70% by area in the molecular weight range of 150 to 550 and of 30 to 55% by area in the molecular weight range of >550 to 10,000 in the combined GPC.

Abstract: A method of fabricating nanocomposite anode material embodying a lithium titanate (LTO)-multi-walled carbon nanotube (MWNT) composite intended for use in a lithium-ion battery includes providing multi-walled carbon nanotube (MWNTs), including nanotube surfaces, onto which functional oxygenated carboxylic acid moieties are arranged, generating 3D flower-like, lithium titanate (LTO) microspheres, including thin nanosheets and anchoring the acid-functionalized MWNTs onto surfaces of the 3D LTO microspheres by ?-? interaction strategy to realize the nanocomposite anode material.

Abstract: Methods, systems, and apparatuses are provided to automatically determine whether an image is spoofed. For example, a computing device may obtain an image, and may execute a trained convolutional neural network to ingest elements of the image. Further, and based on the ingested elements of the image, the executed trained convolutional neural network generates an output map that includes a plurality of intensity values. In some examples, the trained convolutional neural network includes a plurality of down sampling layers, a plurality of up sampling layers, and a plurality of joint spatial and channel attention layers. Further, the computing device may determine whether the image is spoofed based on the plurality of intensity values. The computing device may also generate output data based on the determination of whether the image is spoofed, and may store the output data within a data repository.

Abstract: A repetition determination method is provided by the present disclosure, which solves the problem on how to determine a number of repetitions for Msg3 PUSCH and available uplink slots. The method of the present disclosure includes: obtaining, by a terminal, an RAR, where the RAR includes an uplink grant and first information other than the UL grant; determining, by the terminal, a number of repetitions for an initial transmission of an Msg3 PUSCH according to the UL grant and/or the first information; and determining, by the terminal, one or more target slots for transmitting the Msg3 PUSCH according to the number of repetitions for the initial transmission of the Msg3 PUSCH and available slots for transmitting the Msg3 PUSCH.

Abstract: The present invention relates to the field of biotechnology, and specifically relates to a PPO polypeptide tolerant to PPO-inhibiting herbicides and use thereof. The said polypeptide contains the motif “LLLNYI”, wherein leucine L at position 3 in the said motif is substituted with any other amino acid, or tyrosine Y at position 5 is substituted with any other amino acid. It can be used in plants, including commercial crops, to greatly improve plant resistance to PPO-inhibiting herbicides according to the herbicide resistance characteristics and herbicide selectivity, so as to control weed growth economically.

Abstract: A method for controlling a battery includes operating a lithium- and manganese-rich (LMR) battery within a first voltage window defined by an upper cutoff voltage threshold and a lower cutoff voltage threshold; monitoring a battery capacity of the LMR battery; and in response to the battery capacity of the LMR battery falling below a predetermined battery capacity, changing the first voltage window to a second voltage window by reducing the lower cutoff voltage threshold by a predetermined voltage value.

Abstract: An example operation may include one or more of storing access requirements of a containerized environment, identifying a plurality of types of users of the containerized environment based on the access requirements, identifying a plurality of different restriction priorities for the plurality of types of users within the containerized environment, respectively, based on the access requirements, dynamically generating an access policy that satisfies the plurality of different restriction priorities for the plurality of types of users within the containerized environment, and transforming the access policy into a plugin.

Abstract: This specification provides a multi-party database including a central node and a plurality of databases. The central node has a disclosed first interface. Each of a plurality of query engines corresponding to the plurality of databases includes a second interface configured to interact with the first interface. The central node can determine a plurality of target databases related to a query request from the plurality of databases based on the query request; and send a query indication to a plurality of target query engines corresponding to the plurality of target databases through the first interface. The plurality of target query engines can receive the query indication from second interfaces in the plurality of target query engines, and execute the query indication to obtain a query result; and send the query result to the first interface in the central node through the second interfaces.

Abstract: This disclosure provides a data channel transmission bandwidth determination method and apparatus, a network side device and a terminal. The data channel transmission bandwidth determination method includes: transmitting, to a terminal, scheduling information for scheduling data channel transmission; where the scheduling information includes data channel transmission bandwidth indication information.

Abstract: A data transmission method, a terminal and a network side device are provided.

Abstract: A method and a base station for determining transmission paths are provided. The method includes determining that multiple transmission paths are to be configured for each of one or more terminals, and determining first configuration information of a terminal group corresponding to each terminal, which is used for configuring multiple transmission paths for a terminal in the terminal group. The disclosure reduces the complexity and computation amount of configuring transmission paths and improves the system performance.

Abstract: A photoelectric detection circuit, a method of controlling the photoelectric detection circuit and a pixel unit are provided. The photoelectric detection circuit includes: a detection sub-circuit configured to generate a current flowing between a bias voltage signal terminal and a input node in response to an optical signal; a storage sub-circuit connected between the bias voltage signal terminal and the input node, and configured to store energy based on the current generated by the detection sub-circuit; an integrator sub-circuit having a first input terminal, a second input terminal and an output terminal, and configured to integrate a signal of the first input terminal based on a potential of the second input terminal to generate an integrated signal and output the integrated signal at the output terminal; and a control sub-circuit connected to a control signal terminal, the input node and the first input terminal of the integrator sub-circuit.

Abstract: This application relates to the communication field, and discloses a communication method and apparatus, The method includes: A first terminal device receives first frame information and second frame information from a network device, where the first frame information indicates to divide a resource block in a subframe into M*N time-frequency resource areas, and indicates that O time-frequency resource areas in the M*N time-frequency resource areas are used for signal transmission, and the second frame information indicates that R time-frequency resource units in each of the O time-frequency resource areas are used for signal transmission, where the resource block includes PM*QN time-frequency resource units, M, N, O, P, Q, and R are integers greater than or equal to 1, O is less than or equal to M*N, and R is less than or equal to P*Q. The first terminal device sends a signal.