Abstract: A first data management apparatus in a plurality of data management apparatuses corresponds to a first blockchain node in a blockchain network, and a second data management apparatus corresponds to a second blockchain node in the blockchain network. A storage mounted to the first data management apparatus and a storage mounted to the second data management apparatus are configured to form a storage resource pool of the blockchain network. A method includes a target data management apparatus in the plurality of data management apparatuses that receives a data operation request; and that the target data management apparatus obtains a storage address of a plurality of data shards of target data from the blockchain network based on the data operation request, and performs I/O on the target data in the storage resource pool based on the storage address of the plurality of data shards.

Abstract: A blockchain network management method includes a management platform receiving an inter-blockchain application submitted by a user; and invoking a blockchain platform management interface based on the inter-blockchain application to install an inter-blockchain contract for a first blockchain network and a second blockchain network separately. The inter-blockchain contract is used by the first blockchain network and the second blockchain network to establish a connection to a relay apparatus separately, and perform an inter-blockchain transaction via the relay apparatus. The management platform installs an inter-blockchain contract for different blockchain networks such as a heterogeneous blockchain network through a same set of blockchain platform management interfaces, to integrate an inter-blockchain capability, and truly streamline services of the blockchain networks. Data can be migrated between different blockchain networks without adapting to a heterogeneous kernel.

Abstract: A blockchain network management method includes receiving a user registration request, where the user registration request includes a user type of a user, and the user type is based on a deployment manner of a blockchain network managed by the user; registering a corresponding organization for the user based on the user registration request, where the organization is associated with resource space corresponding to the user type; and invoking a processing interface of the resource space to execute corresponding service logic. In the method, an organization with a consistent structure is registered for an on-cloud user or an off-cloud user, and the organization is bound to resource space of a corresponding user type, to perform service processing through a processing interface of the corresponding resource space.

Abstract: A data storage system provides a data storage interface for a plurality of clients, and the client may request on-chain storage by invoking the data storage interface. The data storage system may interconnect with and serve a plurality of blockchain systems. In addition, the data storage system further includes a storage resource pool shared by the plurality of clients to share a storage resource.

Abstract: An integrated sample purification system includes a housing, a sample container rack, a filter holder, and a cylindrical magnet. The sample container rack and the filter device holder are disposed in the housing. The sample container rack is configured to hold one or more sample containers, the filter device holder is configured to hold one or more filter devices. The cylindrical magnet is adjacent to and external to the sample container rack, and is rotated about a central, longitudinal axis of the magnet by an electric motor disposed in the housing to lyse cells. Molecules of interest in the lysed cells are purified using filters that bind specifically to the molecules of interest. The system is readily amenable to automation and rapid purification and analysis of molecules of interest, such as nucleic acids and proteins.

Abstract: A microarray assembly for detection of a target molecule is disclosed. The microarray assemblies comprise an array chamber having a microarray located therein and features that facilitate liquid movement within the array chamber. Also disclosed are methods for making the microarray assembly using rollable films and methods for detecting microarray spots using an internal control fluorophore in the array spot.

Abstract: An integrated sample purification system includes a housing, a sample container rack, a filter holder, and a cylindrical magnet. The sample container rack and the filter device holder are disposed in the housing. The sample container rack is configured to hold one or more sample containers, the filter device holder is configured to hold one or more filter devices. The cylindrical magnet is adjacent to and external to the sample container rack, and is rotated about a central, longitudinal axis of the magnet by an electric motor disposed in the housing to lyse cells. Molecules of interest in the lysed cells are purified using filters that bind specifically to the molecules of interest. The system is readily amenable to automation and rapid purification and analysis of molecules of interest, such as nucleic acids and proteins.

Abstract: A microarray assembly for detection of a target molecule is disclosed. The microarray assemblies comprise an array chamber having a microarray located therein and features that facilitate liquid movement within the array chamber. Also disclosed are methods for making the microarray assembly using rollable films and methods for detecting microarray spots using an internal control fluorophore in the array spot.

Abstract: An integrated imaging display system is provided. The integrated imaging display system includes: a light source, a converging lens, an illumination microlens array, and a projection microlens array, where illumination microlens units in the illumination microlens array and projection microlens units in the projection microlens array are disposed in a one-to-one correspondence, and the converging lens converts all light emitted by the light source into parallel light and then irradiates the parallel light to the illumination microlens array; a sub-image is provided on a side of each of the illumination microlens units close to the projection microlens unit; all light emitted by each of the illumination microlens units is irradiated on a corresponding projection microlens unit after passing through the sub-image, and the projection microlens array displays an image of the sub-image.

Abstract: The present disclosure relates to the field of construction machinery, and discloses a troweling device and a troweling robot. The troweling device includes: a main body; a roller traveling mechanism mounted on the main body and can travel along a construction surface; and a vibrating slurry extracting mechanism mounted on the main body and located behind the roller traveling mechanism in a traveling direction of the troweling device. The vibrating slurry extracting mechanism can abut against the construction surface, and perform slurry extracting on slurry on the construction surface through vibration.

Abstract: A feed injector for a gasifier comprising a burner and a cooling jacket to protect the burner from high temperatures. The cooling jacket comprises two concentric channels in order to provide a flow path for a heat transfer fluid, typically water, to travel through one channel toward the burner front, travel along the burner front, and return through the other channel. Heat transfer in the cooling jacket is improved by introducing one or more fins in the path of the heat transfer fluid and/or by increasing the radius of curvature of the wall corner bordering the flow recirculation zone in the cooling jacket.

Abstract: A molecular testing device comprises a heating and cooling module having a thin-film thermoelectric heating and cooling device, and a removable test module having a combined amplification and hybridization reaction chamber. The reaction chamber comprises a thermo-conductive exterior surface and a microarray on an interior surface. The thin-film thermoelectric heating and cooling device has a heat transfer surface that is adapted to make contact with the thermo-conductive exterior surface of the reaction chamber. The molecular testing device may be used to perform a PCR in the reaction chamber.

Abstract: An integrated imaging display system is provided. The integrated imaging display system includes: a light source, a converging lens, an illumination microlens array, and a projection microlens array, where illumination microlens units in the illumination microlens array and projection microlens units in the projection microlens array are disposed in a one-to-one correspondence, and the converging lens converts all light emitted by the light source into parallel light and then irradiates the parallel light to the illumination microlens array; a sub-image is provided on a side of each of the illumination microlens units close to the projection microlens unit; all light emitted by each of the illumination microlens units is irradiated on a corresponding projection microlens unit after passing through the sub-image, and the projection microlens array displays an image of the sub-image.

Abstract: A molecular testing device comprises a heating and cooling module having a thin-film thermoelectric heating and cooling device, and a removable test module having a combined amplification and hybridization reaction chamber. The reaction chamber comprises a thermo-conductive exterior surface and a microarray on an interior surface. The thin-film thermoelectric heating and cooling device has a heat transfer surface that is adapted to make contact with the thermo-conductive exterior surface of the reaction chamber. The molecular testing device may be used to perform a PCR in the reaction chamber.

Abstract: An integrated sample purification system includes a housing, a sample container rack, a filter holder, and a cylindrical magnet. The sample container rack and the filter device holder are disposed in the housing. The sample container rack is configured to hold one or more sample containers, the filter device holder is configured to hold one or more filter devices. The cylindrical magnet is adjacent to and external to the sample container rack, and is rotated about a central, longitudinal axis of the magnet by an electric motor disposed in the housing to lyse cells. Molecules of interest in the lysed cells are purified using filters that bind specifically to the molecules of interest. The system is readily amenable to automation and rapid purification and analysis of molecules of interest, such as nucleic acids and proteins.

Abstract: A microarray assembly for detection of a target molecule is disclosed. The microarray assemblies comprise an array chamber having a microarray located therein and features that facilitate liquid movement within the array chamber. Also disclosed are methods for making the microarray assembly using rollable films and methods for detecting microarray spots using an internal control fluorophore in the array spot.

Abstract: A molecular testing device comprises a heating and cooling module having a thin-film thermoelectric heating and cooling device, and a removable test module having a combined amplification and hybridization reaction chamber. The reaction chamber comprises a thermo-conductive exterior surface and a microarray on an interior surface. The thin-film thermoelectric heating and cooling device has a heat transfer surface that is adapted to make contact with the thermo-conductive exterior surface of the reaction chamber. The molecular testing device may be used to perform a PCR in the reaction chamber.

Abstract: A microarray assembly for detection of a target molecule is disclosed. The microarray assemblies comprise an array chamber having a microarray located therein and features that facilitate liquid movement within the array chamber. Also disclosed are methods for making the microarray assembly using rollable films and methods for detecting microarray spots using an internal control fluorophore in the array spot.

Abstract: An integrated sample analysis system is disclosed. The sample analysis system contains (1) a sample preparation/analysis module having sample purification device comprising a monolith that binds specifically to nucleic acids and a sample analysis device comprising a microarray enclosed in a reaction chamber having a hydrophilic interior surface; (2) a temperature control module comprising a thermocycler having a thermally conductive temperature-control bladder; and (3) an imaging device capable of capturing an image of the microarray in the reaction chamber.