Abstract: The present invention pertains to the field of oilfield stimulation technologies for oil and gas field development, in particular to an instant soluble temperature and salt resistant polyacrylamide and the preparation method and application thereof, and the polyacrylamide is modified by adding rigid temperature and salt resistant monomer containing benzene ring and cationic fluorinated hydrophobic monomer on the basis of acrylamide monomer and sodium acrylate monomer, and then polymerized to obtain instant soluble temperature and salt resistant polyacrylamide. The temperature and salt resistant monomer containing benzene ring can improve the thermal stability and temperature and salt resistance of polyacrylamide, while the long-chain cationic fluorinated hydrophobic monomer can enhance the hydrophobicity of polymer. The comprehensive properties of polymer is improved by appropriate intermolecular association.

Abstract: Techniques are described to for carrier phase measurements for wireless communication. An example wireless communication method includes receiving, by a wireless device from a network device, configuration information of a reference signal; performing, by the wireless device, a carrier phase measurement of a carrier that includes the reference signal; and sending, by wireless device, a measurement report comprising a result of the carrier phase measurement of the carrier that includes the reference signal.

Abstract: The disclosure provides a method, an electronic device, and a storage medium for training a federated learning model. According to the method, the electronic device, and the storage medium for training a federated learning model provided in the disclosure, after each of participant devices obtains gradient information of the participant device by performing joint encryption training with a rest of the participant devices, the participant device performs joint training with the rest of the participant devices based on a model parameter variation and a gradient information variation, to obtain a corresponding gradient search direction; then a target participant device of the participant device calculates step information based on the gradient search direction and a model loss function; finally, each of the participant devices updates a model parameter of the participant device based on the gradient search direction and the step information.

Abstract: Embodiments of the present disclosure provide a display substrate, a display panel and a display apparatus. The display substrate includes: a base substrate; a plurality of first pixel circuits; a plurality of first light-emitting devices on one side of the first pixel circuits away from the base substrate, wherein the first light-emitting devices include first electrodes; at least one flat layer and at least one conductive layer between the first pixel circuits and the first light-emitting devices.

Abstract: Provided are methods and an apparatuses for congestion control. In an apparatus for congestion control, which includes a processor and a processor, the transceiver is configured to receive a policy and charging control (PCC) rule from a policy control function (PCF) network element, where the PCC rule includes a first congestion control indication; and the processor is configured to determine a quality of service (QOS) flow for transmitting a first service data flow based on the first congestion control indication. The transceiver is also configured to send a congestion control indication associated with the QoS flow and a QoS flow identifier of the QoS flow to an access network device.

Abstract: An information transmission method, apparatus and device and a storage medium. The method comprises: performing channel sensing on a sidelink to determine whether the sidelink is available in a preset time period (61); when the sidelink is available in the preset time period, determining an available resource set of the sidelink in the preset period (62); and sending data information in the preset time period by occupying a target resource in the available resource set (63). In the method, a terminal device determines an available resource set of the channel within a preset time period when a channel is idle, and sends data information on a target resource in the available resource set, so that the service quality of each system does not interfere with each other, and the systems stability is improved.

Abstract: Embodiments disclosed herein relate to the field of plant molecular biology, specifically to DNA constructs for conferring insect resistance to a plant. Embodiments disclosed herein relate to insect resistant corn plant containing event DP-023211-2, and to assays for detecting the presence of event DP-023211-2 in samples and compositions thereof.

Abstract: A method for cyclic biochemical conversion of carbon dioxide and hot gas cogeneration in depleted oil and gas reservoirs includes: S1: selecting a target depleted oil and gas reservoir; S2: adjusting a temperature of the target depleted oil and gas reservoir to 30° C. to 70° C. and detecting whether formation water of the target depleted oil and gas reservoir contains methanogenic archaea, in which if no methanogenic archaeon is contained, then methanogenic archaea is injected and step S3 is proceeded, and if methanogenic archaea are contained, then step S3 is proceeded directly; S3: injecting a mixture of carbon dioxide and hydrogen into the target depleted oil and gas reservoir through a gas injection well; and S4: shutting down the gas injection well to wait for the methanogenic archaea to convert carbon dioxide and hydrogen into methane and exploiting the methane and heat energy in the target depleted oil and gas reservoir.

Abstract: The present invention discloses a novel high-temperature visual acid etching test device and method; the test device includes a visual rock slab holder, an acid solution storage tank I, an acid solution storage tank II, a heating apparatus, a high-pressure water pump, a low-pressure acid pump, a back-pressure valve, an acid valve A, an acid valve B, an acid valve C, an acid valve D, an acid valve E, an acid valve F, a water valve G, a water valve H, a water valve I, a water valve J, and a water valve K; both the acid solution storage tank I and the acid solution storage tank II are provided with a piston therein, where the acid solution storage tank is divided into upper and lower independent parts by the piston. According to the present invention, the flowing process of an acid solution in a fracture can be directly observed to accurately characterize the distribution of the acid solution in the fracture, which facilitates a study on an acid etching mechanism.

Abstract: A calculation system for predicting a proppant embedding depth based on a shale softening effect is provided, including a sampling test terminal, a scheduling module, a monitoring module, and a calculation module, wherein the scheduling module, the monitoring module, and the calculation module are connected in communication, and the monitoring module is connected to an external operating system through a wireless network, wherein the external operating system is configured to perform a hydraulic fracturing operation and receive a first control signal and/or a second control signal from the monitoring module. The sampling test terminal is configured to test the samples and obtain test data. The scheduling module is configured to determine a target construction parameter.

Abstract: Provided are an electronic device and method for wireless communication, and a computer-readable storage medium. The electronic device comprises a processing circuit configured to: determine the first power limiting region of the first primary user of a main system, wherein the first power limiting region is a three-dimensional space defined by the directional beams of the first primary user to the third primary user of the main system; and determine one or more secondary users in the first power limiting regions.

Abstract: Provided in the present disclosure are an electronic device and a method for wireless communication, and a computer-readable storage medium, the electronic device for wireless communication comprising a processing circuit, the processing circuit configured such that: if it is determined that the electronic device is in a frequency spectrum transaction verification region, verifying an effectiveness of a frequency spectrum transaction, the verification region being determined on the basis of interference generated when a frequency spectrum acquirer in the frequency spectrum transaction uses the transaction frequency spectrum; determining an electronic device signal-to-noise ratio according to interference of the electronic device when the frequency spectrum acquirer uses the transaction frequency spectrum, and if the signal-to-noise ratio is greater than a preset signal-to-noise ratio threshold configured for the electronic device, verifying that the frequency spectrum transaction is in effect.

Abstract: Provided are an electronic device and method for wireless communication, and a computer-readable storage medium. The electronic device comprises a processing circuit configured to: determine the first power limiting region of the first primary user of a main system, wherein the first power limiting region is a three-dimensional space defined by the directional beams of the first primary user to the third primary user of the main system; and determine one or more secondary users in the first power limiting regions.

Abstract: A structural stabilizer for a fiber and proppant complex to enhance proppant migration and placement in a fractured well during propping and a preparation method thereof are provided. The structural stabilizer consists of: water, inorganic salt, kaolinite, nitrogen-doped modified graphene oxide, anionic surfactant, non-ionic alkyl polyglucoside, and polyacrylamide. The structural stabilizer improves bonding between a proppant and a fiber when slick water is used in stimulated reservoir volume (SRV) fracturing, prevents separation of the fiber and the proppant during migration, thereby reducing escape rate of the fiber from the fiber and proppant complex.

Abstract: Provided in the present disclosure are an electronic device and a method for wireless communication, and a computer-readable storage medium, the electronic device for wireless communication comprising a processing circuit, the processing circuit configured such that: if it is determined that the electronic device is in a frequency spectrum transaction verification region, verifying an effectiveness of a frequency spectrum transaction, the verification region being determined on the basis of interference generated when a frequency spectrum acquirer in the frequency spectrum transaction uses the transaction frequency spectrum; determining an electronic device signal-to-noise ratio according to interference of the electronic device when the frequency spectrum acquirer uses the transaction frequency spectrum, and if the signal-to-noise ratio is greater than a preset signal-to-noise ratio threshold configured for the electronic device, verifying that the frequency spectrum transaction is in effect.

Abstract: The present disclosure relates to a calculation method for predicting a proppant embedding depth based on a shale softening effect, including determining a spontaneous imbibition depth-soaking time curve; determining a Young’s modulus-soaking time curve of core surfaces; establishing a proppant embedding model containing a softened layer by a finite element method; conducting a numerical simulation to obtain an embedding volume-soaking time curve; and obtaining a calculation formula for a proppant embedding volume considering a softening effect.

Abstract: A signal equalization method includes: receiving a clock signal and a first reference signal; detecting a phase and a frequency of the clock signal based on the first reference signal to generate a detection result; generating a speed judgement signal according to the detection result; and, receiving the speed judgement signal and deciding an equalizer operation parameter according to the speed judgement signal.

Abstract: A method for characterizing complexity of rock fracture based on fractal dimension and a device thereof are provided. The method includes steps of: collecting rock fracture samples of a rock, and collecting basic parameters of the rock; determining a fractal dimension of a rock fracture morphology of the rock; calculating the fractal dimension of the rock; calculating a complexity coefficient Fc of rock fracture of the rock; and characterizing a complexity of rock fracture of the rock based on the complexity coefficient Fc of rock fracture of the rock. In the present invention, combined with the fractal geometry theory, fracture complexity coefficient of shale rocks is redefined and calculated to accurately characterize rock fracture morphology, so that characteristics of rock fracture morphology is correctly understood and affecting factors of fracture morphology is analyzed.

Abstract: A management electronic device includes a processing circuit configured to: obtain a spectrum in an N-th round of spectrum trading and acquire the interference received by the management electronic device when an electronic device uses the traded spectrum; receive the interference received by another electronic device as determined by another electronic device related to spectrum trading; determine competition rights parameters of the management electronic device and the other electronic device, respectively, the competition rights parameters representing the credibility of the electronic devices and the magnitude of competitiveness when competing for management rights in an N+1-th round of spectrum trading; and select a new management electronic device on the basis of at least one among the interference and the competition rights parameters, the new management electronic device having management rights in the N+1-th round of spectrum trading, instead of the management electronic device having management righ

Abstract: Provided in the present disclosure are an electronic device and a method for wireless communication, and a computer-readable storage medium, the electronic device for wireless communication comprising a processing circuit, the processing circuit configured such that: if it is determined that the electronic device is in a frequency spectrum transaction verification region, verifying an effectiveness of a frequency spectrum transaction, the verification region being determined on the basis of interference generated when a frequency spectrum acquirer in the frequency spectrum transaction uses the transaction frequency spectrum; determining an electronic device signal-to-noise ratio according to interference of the electronic device when the frequency spectrum acquirer uses the transaction frequency spectrum, and if the signal-to-noise ratio is greater than a preset signal-to-noise ratio threshold configured for the electronic device, verifying that the frequency spectrum transaction is in effect.