Abstract: A security defending method, a coprocessor, and a processing apparatus are disclosed. The security defending method is applicable in a coprocessor, including: receiving a jump destination encryption request for the operation task; using mask configuration to perform first mask processing on the first jump destination address value to obtain a first intermediate jump destination address value; performing an authentication operation based on the first jump destination storage address, a key reference value corresponding to the operation task and the first intermediate jump destination address value, to obtain a first encryption result value; using the mask configuration to perform second mask processing on the first encryption result value to obtain a first intermediate encryption result value; performing an authentication operation on the first intermediate encryption result value and the first jump destination address value to obtain a first encryption jump destination address value.

Abstract: A security defending method and an electronic apparatus are disclosed. The security defending method is applicable in a coprocessor, including: receiving a jump destination encryption request for the operation task; using mask configuration to perform first mask processing on the first jump destination address value to obtain a first intermediate jump destination address value; performing an authentication operation based on the first jump destination storage address, a key reference value corresponding to the operation task and the first intermediate jump destination address value, to obtain a first encryption result value; using the mask configuration to perform second mask processing on the first encryption result value to obtain a first intermediate encryption result value; performing an authentication operation on the first intermediate encryption result value and the first jump destination address value to obtain a first encryption jump destination address value.

Abstract: Provided is a solar cell and a photovoltaic module. The solar cell includes a silicon substrate, and the silicon substrate includes a front surface and a back surface arranged opposite to each other. P-type conductive regions and N-type conductive regions are alternately arranged on the back surface of the silicon substrate. Front surface field regions are located on the front surface of the silicon substrate and spaced from each other. The front surface field regions each corresponds to one of the P-type conductive regions or one of the N-type conductive regions. At least one front passivation layer is located on the front surface of the silicon substrate. At least one back passivation layer is located on surfaces of the P-type conductive regions and N-type conductive regions.

Abstract: A laminate for use in a circuit board is provided. The laminate comprises a conductive layer and a film positioned adjacent to the conductive layer. The film comprises a polymer composition that includes a liquid crystalline polymer and a hydrophobic material. The polymer composition exhibits a dielectric constant of about 5 or less and dissipation factor of about 0.05 or less at a frequency of 10 GHz.

Abstract: This application relates to a method and apparatus for processing frame synchronization data. The method includes: predicting a downlink network congestion trend based on a congestion condition of received downlink data frames; adjusting a report time interval of uplink data frames based on the downlink network congestion trend, the downlink network congestion trend being in direct proportion to the report time interval; transmitting the uplink data frames to a server based on the report time interval.

Abstract: A turbocharger air intake silencer with adjustable cavity space structures is provided. The turbocharger air intake silencer comprises a silencer connecting flange and a first resonator device. The first resonator device comprises a first silencer sealing plate, a first annular sound absorption cavity body, a first rotary table, a first rotary steering gear and a first valve. A first sound absorption cavity is enclosed by the first silencer sealing plate, the first annular sound absorption cavity body, the first valve and the first rotary table. A first sound absorption cavity inlet pipe is arranged beside the first sound absorption cavity. The first sound absorption cavity and the first sound absorption cavity inlet pipe form a Helmholtz resonator. The first rotary steering gear is mounted on the silencer connecting flange. The rotary steering gear is connected with a first rotary rack.

Abstract: The present disclosure provides a solar cell. The solar cell includes a substrate, where the substrate has a front surface and a rear surface, the rear surface includes a textured region and a flat region, a doped surface field is formed in the textured region of the substrate; a tunneling dielectric layer, where the tunneling dielectric layer is located on the flat region; a doped conductive layer, where the doped conductive layer is located on the tunnelling dielectric layer, the doped conductive layer has doping elements, and the doped conductive layer has the same type of the doping elements with the doped surface field; a rear electrode, where a part of a bottom portion of the rear electrode is located in the doped conductive layer and the part of the bottom portion of the rear electrode is in contact with the doped surface field.

Abstract: Some embodiments of the disclosure provide an air intake bypass recirculation structure with adjustable air entraining amount and controllable broadband noise which includes main body of the air intake bypass recirculation structure and an air entraining amount adjusting structure. In some examples, an air intake bypass recirculation cavity is formed in the main body of the air intake bypass recirculation structure. An air inlet of an air intake pipe and an air outlet of the air intake pipe are formed in two ends of the main body of the air intake bypass recirculation structure respectively. An airflow inlet of the air intake bypass recirculation structure and an airflow outlet of the air intake bypass recirculation structure are formed in the inner side of the main body of the air intake bypass recirculation structure. The air entraining amount adjusting structure is arranged in the air intake bypass recirculation cavity.

Abstract: Disclosed is a solar cell, including: a substrate; an emitter, a first passivation film, an antireflection film and a first electrode sequentially disposed on an upper surface of the substrate; a tunneling layer, a retardation layer, a field passivation layer, a second passivation film and a second electrode sequentially disposed on a lower surface of the substrate. The retardation layer is configured to retard a migration of a doped ion in the field passivation layer to the substrate. The retardation layer includes a first retardation sub-layer overlapping with a projection of the second electrode and a second retardation sub-layer misaligning with a projection of the second electrode, and at least the second retardation sub-layer is an intrinsic semiconductor. A thickness of the first retardation sub-layer is smaller than a thickness of the second retardation sub-layer in a direction perpendicular to the surface of the substrate.

Abstract: A solar cell, a method for manufacturing the solar cell, and a photovoltaic module are provided. The solar cell includes a substrate, a tunneling dielectric layer, a doped conductive layer, a plurality of first electrodes, at least one transmission layer, and at least one diffusion region. The tunneling dielectric layer and the doped conductive layer are arranged over a first surface of the substrate. The doped conductive layer includes main body portions. Each first electrode is disposed on and electrically connected to a side of a corresponding main body portion facing away from the substrate. Each transmission layer is disposed between a corresponding pair of adjacent main body portions. Each diffusion region is partially located in a corresponding transmission layer and extends into the tunneling dielectric layer and the substrate. A doping ion concentration of each diffusion region is greater than a doping ion concentration of the substrate.

Abstract: A turbocharger air intake silencer with adjustable cavity space structures is provided. The turbocharger air intake silencer comprises a silencer connecting flange and a first resonator device. The first resonator device comprises a first silencer sealing plate, a first annular sound absorption cavity body, a first rotary table, a first rotary steering gear and a first valve. A first sound absorption cavity is enclosed by the first silencer sealing plate, the first annular sound absorption cavity body, the first valve and the first rotary table. A first sound absorption cavity inlet pipe is arranged beside the first sound absorption cavity. The first sound absorption cavity and the first sound absorption cavity inlet pipe form a Helmholtz resonator. The first rotary steering gear is mounted on the silencer connecting flange. The rotary steering gear is connected with a first rotary rack.

Abstract: The solar cell includes: a substrate; a tunneling dielectric layer located on the first surface of the substrate; multiple doped conductive layers, where the multiple doped conductive layers are located on a surface of the tunneling dielectric layer away from the substrate, and are disposed at intervals; multiple first electrodes, where the multiple first electrodes are disposed at intervals, extend along a first direction, are arranged on a side of the multiple doped conductive layers away from the substrate, and are electrically connected to the multiple doped conductive layers; at least one conductive transport layer, where the at least one conductive transport layer is located between every two adjacent doped conductive layers in the multiple doped conductive layers, and is in contact with a side surface of the multiple doped conductive layers.

Abstract: The present disclosure relates to a photovoltaic cell and a method for manufacturing a photovoltaic cell. The photovoltaic cell includes a substrate including an emitter and a passivation layer stacked in sequence on one side of the substrate. The emitter includes a first plane and a second plane laminated along a thickness direction of the emitter, and part of the emitter between the second plane and the first plane is a first doped layer. Within a unit volume, a rate of change ?C1 between doping concentration of the second plane and doping concentration of the first plane satisfies: ?C1?15%.

Abstract: An air conditioner indoor unit includes a power supply device, a control device, a negative electrode discharge device, and a positive electrode discharge device. The negative electrode discharge device is configured to ionize air to generate air negative ions. The positive electrode discharge device is configured to ionize air to generate air positive ions. The control device is configured to determine an operation mode of the air conditioner indoor unit according to first information, control the power supply device to supply power to the negative electrode discharge device and the positive electrode discharge device in a case where the operation mode is a first purification mode, and control the power supply device to supply power to the negative electrode discharge device and stop supplying power to the positive electrode discharge device in a case where the operation mode is a second purification mode.

Abstract: Aspect pre-selection techniques using machine learning are described. In one example, an artificial assistant system is configured to implement a chat bot. A user then engages in a first natural-language conversation. As part of this first natural-language conversation, a communication is generated by the chat bot to prompt the user to specify an aspect of a category that is a subject of a first natural-language conversation and user data is received in response. Data that describes this first natural-language conversation is used to train a model using machine learning. Data, is then be received by the chat bot as part of a second natural-language conversation. This data, from the second natural-language conversation, is processed using the model as part of machine learning to generate the second search query to include the aspect of the category automatically and without user intervention.

Abstract: Provided are a solar cell, including: a semiconductor substrate, in which a rear surface of the semiconductor substrate having non-pyramid-shaped microstructures, the non-pyramid-shaped microstructures include two or more first substructures at least partially stacked on one another, and a one-dimensional size of the surface of the outermost first substructure is less than or equal to 45 ?m; a first passivation layer located on a front surface of the semiconductor substrate; first and second tunnel oxide layers located on the non-pyramid-shaped microstructures; first and second doped conductive layers located on a surface of the first and second tunnel oxide layers, the first and second doped conductive layer has different conductive types; a second passivation layer located on a surface of the first and second doped conductive layers; and electrodes formed by penetrating through the second passivation layer to be in contact with the first and second doped conductive layers.

Abstract: A photovoltaic cell is provided, including a substrate and a passivation layer on the substrate. The passivation layer includes first portions and second portions interleaved with each other in a direction perpendicular to a normal of the first surface of the substrate. The first and second portions are doped with a same type of doping elements, each second portion has a reference surface away from the substrate, a doping concentration of doping elements in a second portion gradually decreases in a direction from a center of the reference surface toward an adjacent first portion and in a direction from the center of the reference surface toward the substrate, and a doping concentration of doping elements in the first portion is less than or equal to a minimum doping concentration of doping elements in the second portion.

Abstract: A solar cell including: a substrate having front and back surfaces, the back surface including first and second regions staggered and spaced from each other, and a gap region provided between one first region and one adjacent second region, a plurality of first pyramidal texture structure regions formed corresponding to a plurality of gap regions and a distance between a top and bottom thereof is 2-4 ?m; a first conductive layer formed over the first region; a second conductive layer formed over the second region, the second conductive layer has a conductivity type opposite to the first conductive layer; a first electrode forming electrical contact with the first conductive layer; a second electrode forming electrical contact with the second conductive layer; and a boundary region between the gap region and the conductive layer(s) adjacent thereto, the boundary region including strip or line-patterned texture structures arranged at intervals.

Abstract: The present disclosure provides a solar cell. The solar cell includes a substrate, where the substrate has a front surface and a rear surface, the rear surface includes a textured region and a flat region, a doped surface field is formed in the textured region of the substrate; a tunneling dielectric layer, where the tunneling dielectric layer is located on the flat region; a doped conductive layer, where the doped conductive layer is located on the tunnelling dielectric layer, the doped conductive layer has doping elements, and the doped conductive layer has the same type of the doping elements with the doped surface field; a rear electrode, where a part of a bottom surface of the rear electrode is located in the doped conductive layer and the part of the bottom surface of the rear electrode is in contact with the doped surface field.

Abstract: Embodiments of the present disclosure provide a solar cell and a photovoltaic module. The solar cell includes a substrate, a tunneling dielectric layer formed on the substrate, a doped conductive layer formed on the tunneling dielectric layer, at least one conductive connection structure, a passivation layer over the doped conductive layer and the at least one conductive connection structure, and a plurality of finger electrodes. The doped conductive layer has a plurality of protrusions arranged along a first direction, each protrusion extends along a second direction perpendicular to the first direction. The at least one conductive connection structure is formed between two adjacent protrusions and connected with sidewalls of the two adjacent protrusions. Each finger electrode of the plurality of finger electrodes extends along the second direction to penetrate the passivation layer and connect to a respective protrusion.