Abstract: A precoding matrix indication method, performed by a terminal. The precoding matrix indication method includes: receiving configuration information of a distance from the terminal to a network device, which is sent by the network device; determining indication information of a precoding matrix at least based on the configuration information of the distance; and sending the indication information of the precoding matrix to the network device.

Abstract: The disclosure provides an optical lens assembly and an electronic device. The optical lens assembly comprises: a first lens having a negative refractive power; a second lens having a negative refractive power; a third lens having a positive refractive power; a fourth lens having a positive refractive power; a fifth lens having a refractive power; a sixth lens having a refractive power; and a seventh lens having a refractive power; a distance d11 from a second side surface of the sixth lens to a first side surface of the seventh lens on the optical axis and a total optical length TTL of the optical lens assembly meet: d11/TTL?0.03. The disclosure solves at least one problem among high resolution, miniaturization, inability of clear imaging during large temperature differences, or poor imaging quality in low light environments in optical lens assembly in the related art.

Abstract: A digital microfluidic chip and methods for droplet generation and library preparation using the same, the digital microfluidic chip includes: a droplet generation structure, configured to generate droplets of various volumes, and the droplet generation structure includes: one or more droplet generation modules, wherein each droplet generation module is configured to generate at least one of a first droplet, a second droplet, and a third droplet, and the first droplet, the second droplet, and the third droplet respectively have a first volume, a second volume, and a third volume that are different from each other; a droplet receiving module, configured to achieve at least one of mixing and reaction of a plurality of droplets; and an interconnection module, configured to drive the first droplet, the second droplet, and the third droplet, and to connect the droplet generation structure to the droplet receiving module.

Abstract: Provided is a biosynthesis-based preparation method for a structural material of the human body. A polypeptide of the present application contains the structure of a C-terminal region of (repeating unit)n or (repeating unit)n-; the repeating unit contains an amino acid sequence as shown in SEQ ID NO. 1. Recombinant type V humanized collagen prepared in the present application has high activity in promoting cell adhesion, and does not cause an immune response when applied to the human body; moreover, the preparation method is novel, allows for large-scale production of the recombinant type V humanized collagen, and is widely used in the preparation of structural materials of the human body. The application field includes preparation of high-end medical devices.

Abstract: A load cell with a Roberval structure having an anti-offset function, and a weighing device are disclosed. The load cell includes strain detection elements mounted on an elastic element, which includes a loading portion for receiving a load from a connector, a fixing portion for fixing the elastic element, a strain generation portion for converting the load into deformation, and a parallel guide beam for transferring the load and keeping the loading portion translational when loaded. The strain generation portion includes first and second hollow cavity bodies symmetrically distributed vertically relative to each other. The loading portion and the fixing portion are respectively located on left and right sides of the strain generation portion. The parallel guide beam is located at upper and lower portions of the strain generation portion. A center of rotation and a geometric center of the strain generation portion coincide when the load cell with the Roberval structure is loaded.

Abstract: A method for efficient and rapid propagation of Emmenopterys henryi includes obtaining sterile seedlings, inducing adventitious buds, proliferating adventitious buds, promoting elongation of adventitious buds, promoting rooting of adventitious buds, and hardening and transplanting tissue culture plantlets. Different plant hormone components are selected to prepare a culture system including an initiation medium, a differentiation medium, a proliferation medium, an elongation medium, and a rooting medium. The differentiation rate of adventitious buds of Emmenopterys henryi is as high as 81.7%, the proliferation coefficient of adventitious buds is 4.7, the proportion of adventitious buds with a height greater than 5 mm after proliferation culture reaches 72.5%, and the rooting rate is 77.8%. When the tissue culture plantlets are transplanted into a mixed substrate, the survival rate reaches 100%.

Abstract: A radio access network (“RAN”) node or basestation that includes dual functions with both wireless communications and wireless sensing. The sensing related signal may be integrated in the RAN node to provide sensing operations (e.g. sensing radio link S-RL) in addition to wireless communications (e.g. communication radio link RL) with user equipment (“UE”). The sensing signal can be used for detecting objects along a radio path between the RAN node and UE to improve the wireless communication through the communication radio link.

Abstract: A microfluidic substrate has a first straight region, a second straight region, and a first turning region, which is substantially of a ring sector and includes a first arc edge and a second arc edge that are opposite. The microfluidic substrate includes first straight driving electrodes in the first straight region, second straight driving electrodes in the second straight region, and turning driving electrodes in the first turning region. A border of each turning driving electrode includes at least one first reference point coinciding with the first arc edge and at least one second reference point coinciding with the second arc edge. A radius of the first arc edge is greater than or equal to (?{square root over (3)}?1) times of a first dimension of a reference electrode, and a radius of the second arc edge is greater than or equal to 3/2 times of the first dimension of the reference electrode.

Abstract: The present invention relates to the field of medicines, and relates to a protein and vaccine for resisting infection from a SARS-COV-2 Omicron mutant strain and a subtype thereof. In order to solve the problem of lack of drugs for effective prevention and treatment for infections from the SARS-COV-2 Omicron mutant strain and the subtype thereof, the present invention provides the protein and the vaccine for resisting infection from the SARS-COV-2 Omicron mutant strain and the subtype thereof. The vaccine is optimally designed on the basis of an RBD sequence in an S protein of the SARS-COV-2 Omicron mutant strain and substrains BA.4/5, BQ.1.1, and XBB.1.5, can help a host to resist a coronavirus infection, and particularly has a relatively good prevention and treatment effect on a cross infection caused by a SARS-COV-2 Omicron mutant strain and subtype viruses thereof.

Abstract: A precoding method is performed by a reconfigurable intelligent surface (RIS) array. The method includes: determining incident angle information, the incident angle information including incident angle information of an incident beam transmitted by a base station to the RIS array; acquiring a precoding matrix index (PMI), the PMI being determined according to channel information between the RIS array and a user equipment (UE); determining reflection angle information corresponding to the RIS array according the PMI; and determining a target deflection phase angle of each RIS array element in the RIS array according to the incident angle information and the reflection angle information, to precode the RIS array.

Abstract: The disclosure provides an optical lens assembly and an electronic device. The optical lens assembly comprises: a first lens having a negative refractive power; a second lens having a negative refractive power; a third lens having a positive refractive power; a fourth lens having a positive refractive power; a fifth lens having a refractive power; a sixth lens having a refractive power; and a seventh lens having a refractive power; a distance d11 from a second side surface of the sixth lens to a first side surface of the seventh lens on the optical axis and a total optical length TTL of the optical lens assembly meet: d11/TTL?0.03. The disclosure solves at least one problem among high resolution, miniaturization, inability of clear imaging during large temperature differences, or poor imaging quality in low light environments in optical lens assembly in the related art.

Abstract: The application provides a microfluidic chip, a temperature measurement method using the same, and an analysis device, which relates to the field of microfluidic technology. The microfluidic chip includes: a substrate and at least one microfluidic module located on the substrate, wherein the microfluidic module includes a droplet control unit and at least one temperature detection unit, and wherein the temperature detection unit includes a temperature sensor, a first lead group and a second lead group, the temperature sensor is fixed on the substrate, the first lead group and the second lead group are electrically connected with the temperature sensor respectively, the first lead group is configured to transmit a constant current to the temperature sensor, and the second lead group is configured to electrically connect the temperature sensor and an external voltmeter.

Abstract: A short-channel MOSFET device with low turn-on voltage and a method for manufacturing the same are provided. The method includes providing a silicon wafer, and sequentially growing an epitaxial layer and a first oxide layer on the silicon wafer; performing a first ion implantation and a second ion implantation on an upper portion of the epitaxial layer to form a body region and a source region; etching to form gate trenches; growing a gate oxide layer on trench walls of the gate trenches; forming gate polysilicon in the gate trenches; and completing a subsequent manufacturing process of the short-channel MOSFET device. The body region and the source region are formed before forming the gate trenches, so conductive channels formed are not too short, and electronic leakage of the conductive channels is avoided.

Abstract: The present invention relates to a vaccine against respiratory syncytial virus infection and pertains to the field of medicine. To address the unmet need for effective prevention and treatment drugs against respiratory syncytial virus (RSV)-induced respiratory infection in the elderly, infants and immunocompromised persons, the present invention provides a vaccine against respiratory syncytial virus infection, and the vaccine uses adenovirus as the vector to express an engineered antigen gene specifically designed and optimized based on the fusion (F) protein sequence of RSV. The adenovirus vector vaccine can help the host to resist the respiratory syncytial virus infection, and has good prevention and treatment effect.

Abstract: A digital microfluidics chip and a drive method thereof, and a digital microfluidics apparatus are provided. The digital microfluidics chip includes a first substrate (1) and a second substrate (2) which are oppositely disposed, the first substrate (1) is provided with a plurality of drive regions for driving a droplet to move, at least one drive region includes a drive transistor (50), a drive electrode (60), and a storage capacitor, the drive electrode (60) is connected with the drive transistor (50) and the storage capacitor respectively, and the storage capacitor is configured to be charged when the drive transistor (50) is turned on, and to maintain a voltage signal on the drive electrode (60) when the drive transistor (50) is turned off.

Abstract: Aspects of the disclosure relate to methods for producing organotin compounds with high purity, which may involve the use of specific additives or reaction conditions. Methods for purifying organotin compounds and suppressing the formation of impurities in organotin compounds are also described.

Abstract: A control plane (CP) entity manages and coordinates multiple service nodes for multiple types of services. The services include a communication service, computing service, intelligence service, storage service, and/or security service. The CP entity configures extended user plane (UP) functions that support multiple services and initiates execution of those functions based on the configuration. The UP entity reports the capabilities for multiple services within the UP entity and receives a configuration(s) for the supported multiple services. The UP function is initiated and executed based on the received UP configuration from the CP entity.

Abstract: Methods for synthesizing iodoalkyl tin trialkoxide and diiodoalkyl tin trialkoxide compounds having the chemical formulas R?Sn(OR)3 and R?Sn(OR)3 are described. R? is a primary or secondary iodoalkyl group having about 2 to about 10 carbon atoms and containing at least one iodine atom, R? is a primary or secondary iodoalkyl group having about 2 to about 10 carbon atoms and containing two iodine atoms, and R is a primary, secondary, or tertiary alkyl group having about 1 to about 5 carbon atoms. The iodoalkyl tin compounds may be used for the formation of high-resolution EUV lithography patterning precursors and are attractive due to their desirable purity and low concentration of bisiodoalkyl and bisdiioodoalkyl impurities.

Abstract: Methods for correcting the level of a load cell in a weighing system are disclosed. An actual load value from N load cells of the weighting system is obtained and summed. Center of mass of the object to be weighed is calculated in an X and Y direction based on position coordinates of the N load cells. A load cell of the N load cells is selected and an ideal load value of the (N?1) load cells is expressed in terms of an ideal load value of the selected load cell. The ideal load value of each load cell is calculated based on a proportional relationship of the summation of the ideal load values of the N load cells and the summation of actual load value. The proportional relationship is based on a principle that the center of mass of the object to be weighed on a horizontal plane is constant. A load difference is calculated between the ideal load value and the actual load value of each load cell.

Abstract: A method for determining a precoding codebook includes a network device determining a first codebook for data transmission according to channel information of at least one terminal, and sending first codebook information of the first codebook to the terminal.