Abstract: This application provides a radio frequency circuit and a communication device. In one example, a radio frequency circuit includes a frequency mixer and the phase processing circuit coupled to the frequency mixer. The phase processing circuit is configured to receive the orthogonal baseband signal, and generate the multi-phase signal based on the orthogonal baseband signal, where the multi-phase signal includes m analog signals, a phase difference between any two of the analog signals having adjacent phases is fixed, and m is a positive integer greater than or equal to 3.

Abstract: Disclosed are a battery frame, a power battery and a vehicle. The battery frame includes a base plate and side beams. The side beams are provided on opposite sides of the base plate, each side beam includes a side beam part, a connecting part provided inside the side beam part and connected to the base plate, and a fixing part provided outside the side beam part and configured to connect to a door sill beam of a vehicle. The side beam part includes a upper side beam and a lower side beam, the upper side beam is provided above the lower side beam, an outer side of the lower side beam is connected to the fixing part, and an inner side of the lower side beam is connected to the connecting part, and a first cavity is provided at the lower side beam.

Abstract: Disclosed is a nano pulverizing device for processing reconstituted rice flour which includes a bottom plate, support legs are fixedly connected to corners of a lower surface of the bottom plate, a housing is arranged on an upper surface of the bottom plate, and a rotating motor is arranged on the lower surface of the bottom plate. The rotating motor penetrates through the lower surface of the bottom plate and extends to the upper surface of the bottom plate, and a crushing device is rotationally connected to one end, extending to the upper surface of the bottom plate, of the rotating motor. A support frame is fixedly connected to an inner wall of the housing, a support plate is fixedly connected to a lower surface of the support frame, and a flexible plate is fixedly connected to a lower surface of the support plate.

Abstract: The present application relates to a Flash device switching method and apparatus, a computer device, and a storage medium. The method includes: when verification for a staging area, an active area, and a recovery area in a first flash device Flash corresponding to a first basic input/output system (BIOS) by a complex programmable logic device (CPLD) is passed, acquiring a power-on startup command of a server; performing power-on startup of the server according to the power-on startup command of the server; when the power-on startup of the server is not successful, triggering the CPLD to perform a recovery operation; and after the recovery operation of the CPLD fails, notifying the CPLD to switch the first flash device Flash to a second flash device Flash corresponding to a second BIOS.

Abstract: The present application discloses a resource allocation method for a peripheral, including: determining identification information of all network card devices from acquired peripheral information; establishing a special device list on the basis of the identification information; and performing resource allocation on a currently connected device on the basis of a boot mode of a basic input output system (BIOS) and the special device list. The identification information of all the network card devices is acquired, then the special device list is identified, and finally, on the basis of the boot mode and the special device list, resource allocation is performed on a network card device which is a special device. The present application further discloses a resource allocation apparatus for the peripheral, a server, and a non-volatile computer readable storage medium, which have the described beneficial effects.

Abstract: A method and apparatus for BIOS option modifications to take effect, a storage medium, and an electronic device. The method for BIOS option modifications to take effect comprises: a BIOS option set, wherein function modification has been executed, is acquired in a server, on BIOS options in the BIOS option set (S202); a set attribute of the BIOS option set is detected, wherein the set attribute is configured to indicate whether there is a cold reboot BIOS option in the BIOS option seta function modified is allowed to take effect after a cold reboot (S204); a server reboot manner for the BIOS option set is determined according to the set attribute, wherein the server reboot manner is configured to control BIOS options in the BIOS option set to take effect after the server reboots (S206); and the server is rebooted by the server reboot manner (S208).

Abstract: The present application discloses a resource allocation method for a peripheral, including: determining identification information of all network card devices from acquired peripheral information; establishing a special device list on the basis of the identification information; and performing resource allocation on a currently connected device on the basis of a boot mode of a basic input output system (BIOS) and the special device list. The identification information of all the network card devices is acquired, then the special device list is identified, and finally, on the basis of the boot mode and the special device list, resource allocation is performed on a network card device which is a special device. The present application further discloses a resource allocation apparatus for the peripheral, a server, and a non-volatile computer readable storage medium, which have the described beneficial effects.

Abstract: This disclosure relates to collecting and analyzing data associated with a well site to predict instances of liquid loading that occurs (or that will occur) in a particular well environment. Systems herein involve training a liquid loading classification model based on historical data to predict whether or not liquid loading is occurring or will occur based on real-time sensor data that is collected by a plurality of sensors at the well site. The data is preprocessed and labeled in a manner that provides an efficient training process and which enables a machine learning model, such as a recursive neural network (RNN), to accurately predict when liquid loading will occur such that a presentation may be generated and presented to an individual with the ability to prevent or otherwise mitigate the liquid loading at a time when inefficiencies and other issues can be prevented.

Abstract: A vector search method includes: obtaining a to-be-queried vector; searching an index library for a first index corresponding to the to-be-queried vector, where the index library includes a plurality of indexes, each index corresponds to one first cluster, the first cluster includes a plurality of second clusters, each index records a first cluster center vector and a plurality of second cluster center vectors, feature vectors corresponding to the first cluster are clustered using the first cluster center vector, and feature vectors corresponding to each second cluster are clustered using each second cluster center vector; searching the first index for a second cluster center vector corresponding to the to-be-queried vector; finding a second cluster corresponding to the second cluster center vector based on the second cluster center vector; and searching a plurality of feature vectors included in the second cluster for a target feature vector related to the to-be-queried vector.

Abstract: A tool including a motor, a transmission including a ring gear including a face having a linear portion and ramps extending a fixed axial distance, a spindle, a setting collar, and a clutch coupled to the transmission. The collar is rotatable between predetermined angular positions including a first position corresponding to a non-torque-limited first operation mode and a plurality of second positions corresponding to different torque output settings of a torque-limited second operation mode. The clutch includes a follower positioned between a clutch washer and the face, and a clutch sleeve coupled to the collar that is movable a variable axial distance from the clutch washer dependent on the collar position. In the first angular position corresponding to the first mode, the fixed axial distance is greater than the variable axial distance, and in the second angular positions, the variable axial distance is greater than the fixed axial distance.

Abstract: Provided are a display panel and a display device. The display panel includes a substrate and a drive circuit disposed on one side of the substrate. The drive circuit includes a first transistor. The first transistor includes a first active layer. The first active layer includes an oxide semiconductor. The drive circuit also includes a first capacitor. One capacitor plate of the first capacitor is disposed in the same layer as the first active layer. In the display panel according to embodiments of the present disclosure, a substrate of a first capacitor in a drive circuit is disposed in the same layer as an active layer of an oxide semiconductor.

Abstract: The present invention relates to a process for the preparation of a (co)polyester, comprising, in the presence of a catalyst, esterification of at least one monomer selected from hydroxycarboxylic acids to form oligomers, followed by polycondensation to form a (co)polymer comprising monomeric units derived from the at least one monomer, wherein the at least one monomer is selected from ?- and/or ?-hydroxycarboxylic acids; and in the process also a monohydric alcohol is added in which the hydroxy group is the only reactive functional group, in an amount of 5-150 weight % with regard to the total weight of monomers, the alcohol having a boiling point at ambient pressure of equal to or higher than 175° C. and an acid dissociation constant (pKa) of equal to or less than 12.0 and equal to or more than 7.0.

Abstract: The invention relates to a process for the chemical production of a polyester (co)polymer starting from monomers and/or oligomers, comprising reacting a mixture of at least (a) one or more diol monomers, and (b) one or more dicarboxylic acid monomers and/or esters thereof, and/or one or more oligomers comprising monomer units of (a) and (b); wherein at least one diol monomer (a) is a secondary diol monomer; and wherein in the process also is added (c) a monohydric alcohol with a boiling point at ambient pressure of equal to or higher than 175° C. and an acid dissociation constant determined at 25° C. in water of equal to or less than 12.0 and equal to or more than 7.0, in an amount of 2.5-100 weight % with regard to the total weight of monomers and/or oligomers.

Abstract: A vibration exciter having an elastic support, comprising a cavity cover (1) and a vibration base (5). One side of the cavity cover (1) is provided with a PCB assembly plate (8), and a PCB is provided in the PCB assembly plate (8). An excitation signal is input into a voice coil (7) provided on the periphery of a main and auxiliary magnet (6) by means of the PCB, so that the vibration base (5) provided on the periphery of the voice coil (7) is driven, and the vibration base (5) is connected to a supporting plate (4) so that vibration is delivered to the supporting plate (4) and then is delivered to the elastic support (3) by means of the supporting plate (4), the cavity cover (1) is driven to vibrate, and a screen connected to the bottom of the cavity cover (1) is driven to vibrate. Such a structure effectively reduces a resonant frequency of the exciter, and improves the amplitude of the exciter; moreover, different structures are stably connected, and the service life of a device is prolonged.

Abstract: The present disclosure provides systems, methods, and compositions for conditionally regulating expression of a target gene. Aspects of the present disclosure utilize intracellular signal transduction pathways to regulate the expression of a gene (e.g., transgene, exogenous gene, endogenous gene).

Abstract: A display panel and a display apparatus. The display panel includes a blue light-emitting device, and the blue light-emitting device includes a first electrode, an electron blocking layer, a light-emitting layer and a second electrode which are stacked. The hole mobility of the electron blocking layer is not greater than 5×10?4 cm2/VS, so that electrons and holes in the light-emitting layer tend to be balanced, and luminous efficiency of the blue light-emitting device under the low luminance is improved.

Abstract: A polymerization process for the chemical production of a polyester copolymer starting from monomers and/or oligomers may include reacting a mixture of (a) one or more secondary diols, (b) a further diol and (c) one or more dicarboxylic acids and/or esters thereof, and/or one or more oligomers comprising monomer units of (a) and/or (b) and (c); in a process comprising (trans)esterification followed by polycondensation. The process may include addition of an inert solvent (d) which does not participate as a reagent in the polymerization reaction and which has a boiling point at ambient pressure of equal to or higher than 175° C., in an amount of 2.5-100 weight % with regard to the total weight of diols and dicarboxylic acids and/or esters thereof; to generate a polyester copolymer having a number average molecular weight (Mn), as measured by gel permeation chromatography, of 15000 daltons or more.

Abstract: Presently described are bio-based hot-melt adhesive compositions including rosin acids or derivatives thereof and an amphiphilic agent that provide adhesives with a high softening point, improved heat resistance, low melt viscosity, and compatibility with hydrocarbon compositions including polyolefins and waxes used in hot-melt adhesives.

Abstract: A polymerization process for the production of a polyester copolymer A comprising simultaneously reacting a polyester (i) with one or more diols (ii) and one or more dicarboxylic acids or any esters thereof (iii), wherein the polyester (i) is polyethylene terephthalate, polyethylene furanoate, a mixture of polyethylene terephthalate and polyethylene furanoate, or polyethylene terephthalate-co-furanoate; and wherein no terephthalic acid or ester thereof is added as a dicarboxylic acid or ester thereof (iii) if the polyester (i) is polyethylene terephthalate; and wherein the one or more diols (ii) is/are selected from primary diols selected from C3-C18 aliphatic diols; and wherein the components (i) and (ii) are used in sufficient quantities to produce a polyester copolymer A comprising at least 40 mole % of ethylene glycol derived from the starting polyethylene terephthalate, polyethylene furanoate or polyethylene terephthalate-co-furanoate, and at least 5 mole %, preferably equal to or more than 10 mole %, of