Abstract: The present disclosure relates to the field of photovoltaic technologies. Disclosed are a solar cell and a photovoltaic module. The solar cell includes: an absorption layer; and an energy selective contact layer located on a surface of the absorption layer, the energy selective contact layer having selectivity for electron energy or hole energy, and the material of the energy selective contact layer including a low-dimensional perovskite material. According to the solar cell and the photovoltaic module provided by the present disclosure, a photovoltaic module can be manufactured.

Abstract: The invention relates to a hair care composition comprising a) a cationic surfactant selected from stearamidopropyl dimethylamine, behentrimonium chloride, stearyl trimethyl ammonium chloride or mixtures thereof; b) from 15 to 30% by weight of glycerin; and c) from 0.1 to 2.0% by weight of fatty alcohol based on the total weight of the composition.

Abstract: Provided are a method and apparatus for operating a blockchain system, a device and a storage medium. The method is described below. To-be-processed blockchain data is acquired through a kernel engine of the blockchain system. The to-be-processed blockchain data is processed through the kernel engine, a consensus component call request is generated according to a consensus component interface during a processing process of the to-be-processed blockchain data, and a corresponding consensus component is called according to the consensus component call request, where the corresponding consensus component is configured to execute a consensus mechanism between blockchain nodes.

Abstract: Request processing method based on a consortium blockchain, a device, and a storage medium. The implementation solution is: receiving a transaction processing request from a first party authority proxy service of a first party blockchain node through a second party authority proxy service of a second party blockchain node; performing authority verification on the transaction processing request; and in a case where the authority verification passes, sending the transaction processing request to the second party blockchain node to make the second party blockchain node process the transaction processing request. Therefore, the flexibility and convenience of request processing can be improved.

Abstract: Provided are a method and apparatus for operating a blockchain system, a device and a storage medium. The method is described below. To-be-processed blockchain data is acquired through a kernel engine of a blockchain system. The to-be-processed blockchain data is processed through the kernel engine, and a kernel component interface provided by a component adaptor is called during the processing process of the to-be-processed blockchain data to call a kernel component.

Abstract: Provided are a method and apparatus for starting up a blockchain system and a non-transitory computer-readable a storage medium. The method includes operating a main program of a blockchain system to initialize a kernel engine and a kernel component, wherein the main program of the blockchain system comprises an initialization method of the kernel engine and an initialization method of at least one kernel component; obtaining operation configuration information of the blockchain system through a program configuration file to instantiate the kernel engine and the kernel component, wherein the operation configuration information of the blockchain system comprises specification selection information of the kernel engine and specification selection information of the at least one kernel component; starting up and operating the kernel engine and the main program of the blockchain system; and starting up a port monitoring service to operate the blockchain system.

Abstract: Provided are a method and apparatus for starting up a blockchain system and a non-transitory computer-readable a storage medium. The method includes operating a main program of a blockchain system to initialize a kernel engine and a kernel component, wherein the main program of the blockchain system comprises an initialization method of the kernel engine and an initialization method of at least one kernel component; obtaining operation configuration information of the blockchain system through a program configuration file to instantiate the kernel engine and the kernel component, wherein the operation configuration information of the blockchain system comprises specification selection information of the kernel engine and specification selection information of the at least one kernel component; starting up and operating the kernel engine and the main program of the blockchain system; and starting up a port monitoring service to operate the blockchain system.

Abstract: Provided are a method and apparatus for operating a blockchain system, a device and a storage medium. The method is described below. To-be-processed blockchain data is acquired through a kernel engine of the blockchain system. The to-be-processed blockchain data is processed through the kernel engine, a consensus component call request is generated according to a consensus component interface during a processing process of the to-be-processed blockchain data, and a corresponding consensus component is called according to the consensus component call request, where the corresponding consensus component is configured to execute a consensus mechanism between blockchain nodes.

Abstract: Provided are a method and apparatus for operating a blockchain system, a device and a storage medium. The method is described below. To-be-processed blockchain data is acquired through a kernel engine of a blockchain system. The to-be-processed blockchain data is processed through the kernel engine, and a kernel component interface provided by a component adaptor is called during the processing process of the to-be-processed blockchain data to call a kernel component.

Abstract: Furniture configurable between a display configuration and a storage configuration that eases transport and storage and reduces the furniture footprint. The furniture includes an upper region that has seating and a backrest, and a lower region that is below the upper region and adapted to engage a support surface beneath the furniture when in the display configuration. In combination, the upper and lower regions define at least first and second sections of the furniture that are coupled by at least one hinge so that the first section comprises a first portion of the upper region and a first portion of the lower region and the second section comprises a second portion of the upper region and a second portion of the lower region, and the at least one hinge is configured so that the first and second sections pivot toward each other when the furniture is in the storage configuration.

Abstract: A memory management method. The memory management method includes: receiving a command from a host system; sending a command sequence corresponding to the command to a rewritable non-volatile memory module; determining a delay time; and sending a plurality of polling commands to the rewritable non-volatile memory module after the delay time.

Abstract: A collapsible rolling walker that readily collapses for storage and/or transportation and that readily deploys for use.

Abstract: A memory management method. The memory management method includes: receiving a command from a host system; sending a command sequence corresponding to the command to a rewritable non-volatile memory module; determining a delay time; and sending a plurality of polling commands to the rewritable non-volatile memory module after the delay time.

Abstract: Furniture configurable between a display configuration and a storage configuration that eases transport and storage and reduces the furniture footprint. The furniture includes an upper region that has seating and a backrest, and a lower region that is below the upper region and adapted to engage a support surface beneath the furniture when in the display configuration. In combination, the upper and lower regions define at least first and second sections of the furniture that are coupled by at least one hinge so that the first section comprises a first portion of the upper region and a first portion of the lower region and the second section comprises a second portion of the upper region and a second portion of the lower region, and the at least one hinge is configured so that the first and second sections pivot toward each other when the furniture is in the storage configuration.

Abstract: A collapsible rolling walker that readily collapses for storage and/or transportation and that readily deploys for use.

Abstract: Chairs, stool assemblies, and systems for constructing furniture. Such a chair including structural members having hinge joints at ends thereof pivotally coupling each of the members to one or more adjoining members. The chair is configured to be arranged in a collapsed configuration wherein all of the members are in the same plane and define a substantially planar shape, and configured to be arranged in an expanded configuration to define a seat, armrests, support legs, and leg braces of the chair. Such a stool assembly includes at least first and second stools configured to be stackable such that the seats of the stools abut face to face and in combination define a composite base. Such a system for constructing furniture includes multiple joints each having slots configured to receive and retain structural members and configured to be assembled with the structural members to form a piece of furniture with the multiple joints defining corners of the piece of furniture.

Abstract: Aspects of this disclosure include technologies for detecting mislabeled products. In one embodiment, the disclosed system will capture an image of a product when the MRL of the product is scanned or being scanned. After recognizing the product in the image, the size of the area containing the product may be calculated. Subsequently, the disclosed system can determine whether the MRL mismatches the product in the image if this size of the area containing the product does not match the standard size associated with the MRL.

Abstract: A collapsible rolling walker that readily collapses for storage and/or transportation and that readily deploys for use.

Abstract: A collapsible rolling walker that readily collapses for storage and/or transportation and that readily deploys for use.

Abstract: A collapsible rolling walker that readily collapses for storage and/or transportation and that readily deploys for use.