Abstract: Provided are a solar cell, a manufacturing method thereof, and a photovoltaic module. The solar cell includes: a semiconductor substrate, in which a rear surface of the semiconductor substrate having a first texture structure, the first texture structure includes two or more first substructures at least partially stacked on one another, and in a direction away from the rear surface and perpendicular to the rear surface, a distance between a top surface of an outermost first substructure and a top surface of an adjacent first substructure being less than or equal to 2 ?m; a first passivation layer located on a front surface of the semiconductor substrate; a tunnel oxide layer located on the first texture structure; a doped conductive layer located on a surface of the tunnel oxide layer; and a second passivation layer located on a surface of the doped conductive layer.

Abstract: A shaft voltage reduction structure is mounted on an electric machine having a bearing house and a rotor shaft rotatably connected together, and includes an electrically conductive main body, at least one electrically conductive bearing, and an electrically conductive shaft. The conductive main body is mounted to a bottom of the bearing house and includes a conductive shaft barrel projected from a center thereof. The conductive shaft barrel internally defines a shaft receiving hole, in which the conductive bearing is received. The conductive shaft includes a connecting end and a pivotal end connected to the rotor shaft and the shaft receiving hole, respectively. A shaft voltage across the rotor shaft of the electric machine is guided by the conductive shaft to release in a closed loop formed among the conductive main body, the conductive bearing and the bearing house, so as to reduce the shaft voltage of the electric machine.

Abstract: The present invention discloses a Fe—Al-based metal porous membrane and a preparation method thereof, which relate to the technical field of industrial gas-solid and liquid-solid separation and purification, and mainly address problems in the prior art, such as cracking-prone and peeling of a membrane layer of an existing Fe—Al-based metal porous membrane during its preparation and use. The preparation method of the present invention comprises the steps of: adding a Fe—Al-based metal powder and a metal fiber powder into an organic-additive-added water-based solvent, and mixing them into a slurry; casting the slurry, through a casting machine, to form a membrane green body on a metal substrate layer, and letting it dry; and placing the dried membrane green body in a sintering furnace, to remove organic substances and perform high-temperature sintering and predetermined-temperature reaction synthesis.

Abstract: Various embodiments are generally directed to virtualized systems. A first guest memory page may be identified based at least in part on a number of accesses to a page table entry for the first guest memory page in a page table by an application executing in a virtual machine (VM) on the processor, the first guest memory page corresponding to a first byte-addressable memory. The execution of the VM and the application on the processor may be paused. The first guest memory page may be migrated to a target memory page in a second byte-addressable memory, the target memory page comprising one of a target host memory page and a target guest memory page, the second byte-addressable memory having an access speed faster than an access speed of the first byte-addressable memory.

Abstract: Disclosed are a signal transmitting method, device and system, and a storage medium. The method includes: transmitting a first signal, the first signal includes at least one of: at least one first structure or at least one second structure. Each first structure includes at least one symbol group, each symbol group in the each first structure includes a cyclic prefix and at least one symbol, or a cyclic prefix, at least one symbol and guard time, and symbols of each symbol group occupy a same subcarrier or a same frequency resource in frequency domain. Each second structure includes at least one symbol group, each symbol group includes a cyclic prefix and at least one symbol, or a cyclic prefix, at least one symbol and guard time, and symbols of each symbol group in the each second structure occupy a same subcarrier or a same frequency resource in frequency domain.

Abstract: This application relates to a mark quality inspection method and apparatus, a computer device, and a storage medium. The method includes: acquiring a marked-product image obtained by photographing a marked product upon completion of a marking operation on a product; performing image identification on the marked-product image to obtain a mark quality identification result of an identification code in the marked-product image; and outputting a first indication signal under a condition that the mark quality identification result is normal, where the first indication signal is used to indicate that the marked product flows to a process subsequent to the marking operation. In embodiments of this application, mark quality problems can be found in a timely manner, reducing cases of undesirable mark quality and defectiveness of mass-produced products.

Abstract: Provided are a resource allocation method, a resource selection method, a device, and a storage medium. The resource allocation method includes configuring PRACH occasions occupied by a PRACH preamble corresponding to a first-type communication node and sending the PRACH occasions to the first-type communication node.

Abstract: Provided is an information transmission method, apparatus and system. The information transmission method includes: obtaining, by a first communication node, a control channel description list which includes description information of N control channels, where N is a positive integer and the description information of each of the control channels includes one or more of: control channel configuration information, reference signal configuration information, link resource configuration information, operating bandwidth configuration information, puncturing configuration information, frequency hopping configuration formation, transmission time interval length configuration information, power control configuration information and beam configuration information; and sending, by the first communication node, the control channel description list to a second communication node.

Abstract: Provided are a bandwidth configuration method, a transmission method, a communication node, and a storage medium. The bandwidth configuration method includes: determining a first initial uplink bandwidth part, where the first initial uplink bandwidth part includes a random access channel resource, the random access channel resource includes at least one random access channel occasion, and the at least one random access channel occasion is used for transmitting a random access preamble; and configuring a second initial uplink bandwidth part for a first type of user equipment (UE), where a bandwidth of the second initial uplink bandwidth part is smaller than a bandwidth of the first initial uplink bandwidth part.

Abstract: A system and method for transmitting a signal are disclosed herein. In one embodiment, the system and method are configured to perform: transmitting one or more synchronization signals using an anchor carrier with a first frequency location; and transmitting a system information block using a non-anchor carrier with a second frequency location that is different from the first frequency location.

Abstract: Systems and method for the preparation and delivery of biological samples for charged particle analysis are disclosed herein. An example system at least includes an ion filter coupled to select a sample ion from an ionized sample supply, the ion filter including a quadrupole filter to select the sample ion from the sample supply, an energy reduction cell coupled to receive the selected sample ion and reduce a kinetic energy of the sample ion, a validation unit coupled to receive the sample ion and determine whether the sample ion is a target sample ion, a substrate coupled to receive the sample, wherein the substrate is electron transparent, an ion transport module coupled to receive the sample ion from the ion filter and transport the sample ion to the substrate, and an imaging system arranged to image, with a low energy charged particle beam, the sample located on the substrate, wherein the substrate is arranged in an analysis location.

Abstract: A modular cabin transfer device suitable for large luxury cruise ships includes transfer vehicles and pull rods, where each of the transfer vehicles includes a clamping device, clamping assemblies, and a driving assembly, the upper and lower ends of the clamping device are respectively provided with the clamping assemblies, the clamping device makes the clamping assemblies at the upper and lower ends thereof move toward each other or move backwards, and the clamping assemblies at the upper and lower ends thereof clamp the cabin; the driving assembly is arranged at the lower end of the clamping device, and is configured to drive the transfer vehicle to move; adjacent transfer vehicles are connected by the pull rods.

Abstract: A plurality of modules are arranged on the broadside of a ship, each module includes a housing, and the housing is provided with a composite gas supply assembly, a composite airbag assembly, an intelligent control assembly, and a mechanical transmission assembly; the intelligent control assembly is configured for predicting the impact energy and a collision angle of a collision object, sending an inflation instruction to the composite gas supply assembly, inflating a large airbag to a proper air pressure, inflating a small airbag to a rated air pressure, and sending an angle adjustment instruction to the mechanical transmission assembly to adjust the collision angle of the small airbag; the large airbag is matched with the small airbag to fully absorb a collision force vertically acting on the surface of a hull.

Abstract: A shielding shell used to at least partially surround signal terminals includes a first side wall, a second side wall and a third side wall. The second side wall connects the first side wall and the third side wall. The first side wall and the third side wall are disposed face to face. An end of at least one of the first side wall, the second side wall and the third side wall includes a deflection portion bent inwardly. The deflection portion is used to guide insertion of the shielding shell into a mating connector. As a result, a better shielding effect on the signal terminals can be provided. Besides, it is easy to guide insertion of the shielding shell into the mating connector.

Abstract: Methods, systems, and devices related to related to digital wireless communication, and more specifically, to techniques related to transmitting pre-configured dedicates resources for data transmission. In one exemplary aspect, a method for wireless communication includes transmitting a pre-configured transmission resource information indicating a time domain location to a core network node. The method also includes receiving transmission data from the core network node at the time domain location indicated in the pre-configured transmission resource information. In another exemplary aspect, a method for wireless communication includes connecting a communication node to a core network node. The method also includes receiving transmission data including a pre-configured transmission resource information at a time domain location from the core network node.

Abstract: Provided are wake-up signal sending and receiving methods and apparatuses and storage media. The wake-up signal sending method includes sending a WUS by using at least one of a first sending manner: sending a first WUS in a first basic unit and sending a second WUS in a second basic unit; a second sending manner: determining, according to a preset condition, whether a third WUS or a fourth WUS is sent in a basic unit; a third sending manner: determining, according to first signaling, whether the fourth WUS is sent in the basic unit or one of the third WUS or the fourth WUS is sent in the basic unit; or a fourth sending manner: determining, according to second signaling and a basic unit index, a fifth WUS sent in the basic unit.

Abstract: A circuit board includes a first surface, a second surface and a number of metal pads. The metal pads are arranged on the first surface and/or the second surface. The metal pads on a same side of the circuit board are arranged at intervals along a first direction. The metal pads include a first ground metal pad, a second ground metal pad and a signal metal pad. The circuit board further includes an adjustment opening. The adjustment opening is located beside the signal metal pad along the first direction and is close to the signal metal pad. The adjustment opening is configured to reduce the dielectric constant of the circuit board to improve high frequency performance of at least part of the metal pads. An electrical connector having the circuit board is also disclosed.

Abstract: Methods, systems, and devices for providing pre-configured dedicated resources for communications during the RRC (radio resource control) idle state, thereby enabling significant energy savings during the communication of small data packets, are described. One exemplary method for wireless communication includes transmitting a first message comprising an indication of pre-configured terminal-specific dedicated resources for a communication between the network device and a terminal, and receiving information from the terminal over the pre-configured terminal-specific dedicated resources, wherein the terminal is in an idle mode and is without an established RRC connection.

Abstract: A wireless communication method includes configuring, by a wireless communication node, a first bandwidth part (BWP) to a first User Equipment (UE), wherein a multicast control channel (MCCH) for the first UE is transmitted in the first BWP; and configuring, by the wireless communication node, a second BWP to the first UE, wherein a multicast traffic channel (MTCH) for the first UE is transmitted in the second BWP.

Abstract: Methods, systems, and devices for operation in a data transmission state in an idle mode using pre-configured dedicated resources are described. An exemplary method for wireless communication includes transmitting a first message comprising an indication of pre-configured dedicated resources for a communication between the network device and a terminal, and receiving a second message over the pre-configured dedicated resources, where a transmission of the second message by the terminal causes the terminal to switch from an idle state to a data transmission state in an idle mode. Another exemplary methods for wireless communication includes receiving a first message comprising an indication of pre-configured dedicated resources for a communication between a network device and the terminal, and switching from an idle state to a data transmission state in an idle mode upon transmitting a second message over the pre-configured dedicated resources.