Abstract: The disclosure provides methods of promoting stem cell differentiation into mesoderm and endoderm cell lineages comprising, for example, contacting a stem cell with an agent that reduces or eliminates gene activity of one or more endogenous small nuclear ribonucleic acid (snoRNA) molecules, wherein the snoRNA molecules comprise SNORD97 and/or SNORD133. Also provided are isolated cardiomyocytes and compositions of the same, wherein the cardiomyocytes are produced using a method described herein.

Abstract: A data conversion apparatus includes a conversion module, a frequency divider module electrically connected to the conversion module, and a clock selection module electrically connected to both the conversion module and the frequency divider module. The frequency divider module is configured to divide an input clock signal to obtain an output clock signal according to a bit-width m of input data and a bit-width n of output data. The clock selection module is configured to transmit the input clock signal and the output clock signal to the conversion module as a write clock signal and a read clock signal, respectively. The conversion module is configured to: receive the input data of m-bit-width according to the wire clock signal; convert the input data into the output data of n-bit-width; and output the output data according to the read clock signal.

Abstract: Systems and methods for achieving levitation via a photophoretic effect are provided. In certain embodiments, a structure of ultralight materials is provided, for example a BoPET film and carbon nanotubes and has a top and bottom side, made of two separate materials. When the bottom side is illuminated by light at certain intensity, it can result in an upward lift force being applied to the entire structure, causing the structure to levitate.

Abstract: The device comprises: a signal transmission link, wherein the signal transmission link comprises a radio frequency front-end chip and a radio frequency transceiver chip which are connected in series, the radio frequency front-end chip is used for converting a received wireless signal into an analog electrical signal, and amplifying and filtering the analog electrical signal, and the radio frequency transceiver chip is used for converting the analog electrical signal into a digital electrical signal; at least two detection chips respectively connected to the signal transmission link, wherein the detection chips are used for detecting a signal parameter in the series link; and a gain controller connected between an output end of the detection chip and the radio frequency front-end chip, wherein the gain controller is used for adjusting a gain coefficient of the radio frequency front-end chip according to the signal parameter.

Abstract: A software update method includes: receiving, by a target vehicle, first indication information, the first indication information being used to instruct to report version information of target software; sending, by the target vehicle, current version information of the target software configured on the target vehicle to a first control node currently establishing a communication connection with the target vehicle; further, receiving, by the target vehicle, second indication information sent by the first control node, the second indication information being used to indicate updated version information of the target software; and updating, by the target vehicle, the target software according to the second indication information.

Abstract: An antenna and an electronic device are provided in the present disclosure. The antenna includes a first conductive layer, a dielectric layer, and a second conductive layer which are stacked; the first conductive layer is provided as a microstrip line structure; the second conductive layer is provided with a radiation structure and a director; the radiation structure includes a first edge and a second edge disposed oppositely along a first direction; the radiation structure is provided with a first slot, a second slot, and a third slot that are sequentially communicated along the first direction and away from the first edge, the first slot is circular, the second slot is rectangular, and the third slot gradually increases in dimension in the second direction; the director is disposed on the second conductive layer and located at a side of the third slot away from the second slot.

Abstract: The device of processing data based on the radio frequency identification includes: a receiving antenna used to receive a first radio frequency signal; a first front-end module electrically connected to the receiving antenna, wherein the first front-end module is used to receive and amplify the first radio frequency signal; a first radio frequency integrated circuit electrically connected to the first front-end module, wherein the first radio frequency integrated circuit is used to demodulate the amplified first radio frequency signal sent by the first front-end module to obtain a first baseband signal; and a baseband chip electrically connected to the first radio frequency integrated circuit, wherein the baseband chip is used to receive the first baseband signal, decode the first baseband signal, and output a data processing result. The present disclosure further provides an office device, an office method, an office apparatus, a storage medium and a program product.

Abstract: Reversible Spatial 2? Hydroxyl Acylation Reversible Crosslinking (SHARC) agents and methods of using the same to determine spatial distance between nucleotides in a ribonucleic acid (RNA) molecule.

Abstract: A battery pack includes a housing and multiple electrode core strings electrically connected to each other and disposed in the housing. The housing includes a housing body which includes sub-housings connected to each other. A sub-housing includes at least one reinforcing plate and a top plate and a bottom plate oppositely arranged in a first direction. The reinforcing plate is arranged between and is connected to the top plate and the bottom plate, and divides an interior of the corresponding sub-housing into multiple accommodating cavities. At least one accommodating cavity includes at least one electrode core string which includes electrode core assemblies connected and arranged in a second direction. The electrode core assemblies are disposed in an encapsulation film. A length of the electrode core string extends in the second direction. The housing includes a mounting component that is configured to be connected and fixed to an external load.

Abstract: Systems and methods for achieving levitation via a photophoretic effect are provided. In certain embodiments, a structure of ultralight materials is provided, for example a BoPET film and carbon nanotubes and has a top and bottom side, made of two separate materials. When the bottom side is illuminated by light at certain intensity, it can result in an upward lift force being applied to the entire structure, causing the structure to levitate.

Abstract: A plasma arc torch that includes a torch body having a nozzle mounted relative to a composite electrode in the body to define a plasma chamber. The torch body includes a plasma flow path for directing a plasma gas to the plasma chamber in which a plasma arc is formed. The nozzle includes a hollow, body portion and a substantially solid, head portion defining an exit orifice. The composite electrode can be made of a metallic material (e.g., silver) with high thermal conductivity in the forward portion electrode body adjacent the emitting surface, and the aft portion of the electrode body is made of a second low cost, metallic material with good thermal and electrical conductivity. This composite electrode configuration produces an electrode with reduced electrode wear or pitting comparable to a silver electrode, for a price comparable to that of a copper electrode.

Abstract: A plasma arc torch that includes a torch body having a nozzle mounted relative to a composite electrode in the body to define a plasma chamber. The torch body includes a plasma flow path for directing a plasma gas to the plasma chamber in which a plasma arc is formed. The nozzle includes a hollow, body portion and a substantially solid, head portion defining an exit orifice. The composite electrode can be made of a metallic material (e.g., silver) with high thermal conductivity in the forward portion electrode body adjacent the emitting surface, and the aft portion of the electrode body is made of a second low cost, metallic material with good thermal and electrical conductivity. This composite electrode configuration produces an electrode with reduced electrode wear or pitting comparable to a silver electrode, for a price comparable to that of a copper electrode.

Abstract: A metal jet cutting system, which includes a jetting heat, a heater and a power source, is used for modifying a workpiece. The jetting head includes a crucible and an inlet for receiving a feed stock of a conductive material. The heater melts the conductive material in the crucible to provide a conductive fluid, which exits the jetting head via an outlet. The power source, which is in electrical communication with the conductive fluid, increases the temperature of the conductive fluid. The conductive fluid is applied to the workpiece to modify the workpiece.

Abstract: A plasma arc torch that includes a torch body having a nozzle mounted relative to a composite electrode in the body to define a plasma chamber. The torch body includes a plasma flow path for directing a plasma gas to the plasma chamber in which a plasma arc is formed. The nozzle includes a hollow, body portion and a substantially solid, head portion defining an exit orifice. The composite electrode can be made of a metallic material (e.g., silver) with high thermal conductivity in the forward portion electrode body adjacent the emitting surface, and the aft portion of the electrode body is made of a second low cost, metallic material with good thermal and electrical conductivity. This composite electrode configuration produces an electrode with reduced electrode wear or pitting comparable to a silver electrode, for a price comparable to that of a copper electrode.

Abstract: A plasma arc torch that includes a torch body having a nozzle mounted relative to a composite electrode in the body to define a plasma chamber. The torch body includes a plasma flow path for directing a plasma gas to the plasma chamber in which a plasma arc is formed. The nozzle includes a hollow, body portion and a substantially solid, head portion defining an exit orifice. The composite electrode can be made of a metallic material (e.g., silver) with high thermal conductivity in the forward portion electrode body adjacent the emitting surface, and the aft portion of the electrode body is made of a second low cost, metallic material with good thermal and electrical conductivity. This composite electrode configuration produces an electrode with reduced electrode wear or pitting comparable to a silver electrode, for a price comparable to that of a copper electrode.

Abstract: A metal jet cutting system, which includes a jetting heat, a heater and a power source, is used for modifying a workpiece. The jetting head includes a crucible and an inlet for receiving a feed stock of a conductive material. The heater melts the conductive material in the crucible to provide a conductive fluid, which exits the jetting head via an outlet. The power source, which is in electrical communication with the conductive fluid, increases the temperature of the conductive fluid. The conductive fluid is applied to the workpiece to modify the workpiece.

Abstract: A metal jet cutting system, which includes a jetting heat, a heater and a power source, is used for modifying a workpiece. The jetting head includes a crucible and an inlet for receiving a feed stock of a conductive material. The heater melts the conductive material in the crucible to provide a conductive fluid, which exits the jetting head via an outlet. The power source, which is in electrical communication with the conductive fluid, increases the temperature of the conductive fluid. The conductive fluid is applied to the workpiece to modify the workpiece.

Abstract: A metal jet cutting system, which includes a jetting heat, a heater and a power source, is used for modifying a workpiece. The jetting head includes a crucible and an inlet for receiving a feed stock of a conductive material. The heater melts the conductive material in the crucible to provide a conductive fluid, which exits the jetting head via an outlet. The power source, which is in electrical communication with the conductive fluid, increases the temperature of the conductive fluid. The conductive fluid is applied to the workpiece to modify the workpiece.

Abstract: An output structure for material processing apparatus facilitates field replacement of consumable components, while maintaining important alignments. Contoured surfaces within the output structure mate with corresponding contoured surfaces on the consumable components, thereby facilitating alignment of the consumable components with an axis of the output structure. Material processing apparatus employing such surfaces include lasers and plasma arc torches and, with proper alignment, apparatus performance is improved. Typical consumable components include electrodes, swirl rings, nozzles, and shields. The consumable components can be axially translatable with respect to each other, thereby promoting contact starting of a plasma arc torch. An installation tool for consumable components also serves to align the components with an axis of the output structure.

Abstract: A plasma arc torch that includes a torch body having a nozzle mounted relative to a composite electrode in the body to define a plasma chamber. The torch body includes a plasma flow path for directing a plasma gas to the plasma chamber in which a plasma arc is formed. The nozzle includes a hollow, body portion and a substantially solid, head portion defining an exit orifice. The composite electrode can be made of a metallic material (e.g., silver) with high thermal conductivity in the forward portion electrode body adjacent the emitting surface, and the aft portion of the electrode body is made of a second low cost, metallic material with good thermal and electrical conductivity. This composite electrode configuration produces an electrode with reduced electrode wear or pitting comparable to a silver electrode, for a price comparable to that of a copper electrode.