Abstract: This application relates to a data processing method performed by a computer device. The method includes: for each block of a plurality of blocks in a first block file of a blockchain platform, detecting a to-be-maintained transaction record in the block; selecting, from a hash tree of the block, nodes used for proving that the transaction record belongs to the block; constructing a node maintenance tree according to the selected nodes; storing the transaction record at a corresponding leaf node of the node maintenance tree; migrating an association between a block head of the block and the node maintenance tree storing the transaction record from the first block file to a second block file, the block head of the block being adjacent to a block head of a previous block in the second block file; and deleting the first block file after the update processing for each block is completed.

Abstract: The present utility model discloses a volatilization device with a novel structure, which includes a bottle body for storing aromatic liquid, a cover body movably connected to an opening of the bottle body, a base with a semi-open structure, and a diffusion sheet, wherein the diffusion sheet is disposed in the base, and a permeable membrane is disposed on the opening; and when in use, the opening is located in the base, and the permeable membrane is abutted against the diffusion sheet. The present utility model has the beneficial effects that the structure is simple, and unnecessary parts are discarded, so that the production cost is minimized; furthermore, an upside-down structure ensures that liquid can penetrate and volatilize completely; different diffusion rates can be achieved by using permeable membranes of different permeabilities; and in addition, decorations can be added in the bottle body to further improve the added value.

Abstract: A cross-chain transaction processing method and apparatus, an electronic device, and a storage medium are provided, which belong to the field of blockchain technologies. The method includes: receiving a cross-chain transaction request of a terminal; running a first service contract on a first blockchain based on the cross-chain transaction request; executing, on the first blockchain through the first service contract, a first transaction event of a cross-chain transaction, running a first cross-chain contract on the first blockchain, and determining to execute, on a second blockchain, a second transaction event of the cross-chain transaction; storing first cross-chain transaction data to the first blockchain through the first service contract; obtaining second cross-chain transaction data from the second blockchain; and sending a transaction completion response to the terminal through the first service contract and the first cross-chain contract.

Abstract: This application relates to a data processing method performed by a computer device. The method includes: for each block of a plurality of blocks in a first block file of a blockchain platform, detecting a to-be-maintained transaction record in the block; selecting, from a hash tree of the block, nodes used for proving that the transaction record belongs to the block; constructing a node maintenance tree according to the selected nodes; storing the transaction record at a corresponding leaf node of the node maintenance tree; migrating an association between a block head of the block and the node maintenance tree storing the transaction record from the first block file to a second block file, the block head of the block being adjacent to a block head of a previous block in the second block file; and deleting the first block file after the update processing for each block is completed.

Abstract: This application relates to a data processing method and apparatus, a computer device, and a storage medium. The method includes: detecting, for each block in a first block file, a to-be-maintained transaction record in the block; selecting, from a hash tree of the block, nodes used for proving that the transaction record belongs to the block; constructing a node maintenance tree according to the selected nodes; storing the transaction record at a corresponding leaf node of the node maintenance tree; updating an association between a block head of the block and the node maintenance tree storing the transaction record to a second block file, the block head of the block being adjacent to a block head of a previous block in the second block file; and deleting the first block file after the update processing for the each block is completed. The solutions of this application can save storage resources.

Abstract: The present invention belongs to the technical field of bridges, and specifically discloses a spatial multi-point synchronous closure construction method for a three-main-truss steel truss arch bridge. Problems such as difficult control, low efficiency and poor precision of a three-main-truss steel truss arch bridge can be improved by mounting standard rods, adjusting the standard rods to designed coordinates, observing coordinates and spacing of closure rods, processing and mounting the closure rods, adjusting spatial locations, monitoring the atmospheric temperature, analyzing a change rule, pushing the standard rods, adjusting gaps, and carrying out closure.

Abstract: Embodiments of this application provide a data processing method, apparatus, and device, a blockchain system, and a computer-readable storage medium. The method is performed by a computer device acting as a blockchain client of the blockchain system, the method including: transmitting an identity query request to an identity chain node, the identity query request including an identity identifier (ID) of the blockchain client and to-be-processed data; receiving node identity information returned by the identity chain node based on the identity ID and the data; determining, according to the node identity information, a target blockchain node configured to process the data within a blockchain node set; transmitting the data ID to the target blockchain node, to query data on at least one of the plurality of application chains based on the data ID through the target blockchain node; and receiving the queried data returned by the target blockchain node.

Abstract: This application relates to a data processing method and apparatus, a computer device, and a storage medium. The method includes: detecting, for each block in a first block file, a to-be-maintained transaction record in the block; selecting, from a hash tree of the block, nodes used for proving that the transaction record belongs to the block; constructing a node maintenance tree according to the selected nodes; storing the transaction record at a corresponding leaf node of the node maintenance tree; updating an association between a block head of the block and the node maintenance tree storing the transaction record to a second block file, the block head of the block being adjacent to a block head of a previous block in the second block file; and deleting the first block file after the update processing for the each block is completed. The solutions of this application can save storage resources.

Abstract: Compounds for targeting and agents for imaging, prostate-specific membrane antigen (PSMA) are disclosed. Methods of synthesizing compounds and imaging agents, as well as methods for imaging PSMA are also disclosed. The imaging agents disclosed are suitable for PET and SPECT imaging.

Abstract: Compounds for targeting and agents for imaging, prostate-specific membrane antigen (PSMA) are disclosed. Methods of synthesizing compounds and imaging agents, as well as methods for imaging PSMA are also disclosed. The imaging agents disclosed are suitable for PET and SPECT imaging.

Abstract: Compounds for targeting and agents for imaging, prostate-specific membrane antigen (PSMA) are disclosed. Methods of synthesizing compounds and imaging agents, as well as methods for imaging PSMA are also disclosed. The imaging agents disclosed are suitable for PET and SPECT imaging.

Abstract: Compounds for targeting and agents for imaging, prostate-specific membrane antigen (PSMA) are disclosed. Methods of synthesizing compounds and imaging agents, as well as methods for imaging PSMA are also disclosed. The imaging agents disclosed are suitable for PET and SPECT imaging.

Abstract: Compounds for targeting and agents for imaging, prostate-specific membrane antigen (PSMA) are disclosed. Methods of synthesizing compounds and imaging agents, as well as methods for imaging PSMA are also disclosed. The imaging agents disclosed are suitable for PET and SPECT imaging.

Abstract: Compounds for targeting and agents for imaging, Prostate-specific membrane antigen (PSMA) are disclosed. Methods of synthesizing compounds and imaging agents, as well as methods for imaging PSMA are also disclosed. The imaging agents disclosed are suitable for PET and SPECT imaging.

Abstract: Compounds for targeting and agents for imaging, Prostate-specific membrane antigen (PSMA) are disclosed. Methods of synthesizing compounds and imaging agents, as well as methods for imaging PSMA are also disclosed. The imaging agents disclosed are suitable for PET and SPECT imaging.

Abstract: Novel compounds and pharmaceutical compositions having MMP inhibitory activity are disclosed, which have been found to be particularly useful in the prevention, treatment and diagnostic imaging of diseases associated with an unpaired activity of MMP, amongst others MMP-2, MMP-8, MMP-9 and/or MMP-13 to name a few. The compounds of the present invention are useful for the prevention, the treatment and the in vivo diagnostic imaging of a range of disease states (inflammatory, malignant and degenerative diseases) where specific matrix metalloproteinases are known to be involved.

Abstract: Disclosed here in are compounds and methods of diagnosing Alzheimer's Disease or a predisposition thereto in a mammal, the method comprising administering to the mammal a diagnostically effective amount of a radiolabeled compound, wherein the compound is selected from the group consisting of radiolabeled carbazoles and derivatives thereof and triazoles derivatives, allowing the compound to distribute into the brain tissue, and imaging the brain tissue, wherein an increase in binding of the compound to the brain tissue compared to a normal control level of binding indicates that the mammal is suffering from or is at risk of developing Alzheimer's Disease.

Abstract: Imaging agents of formula (I) and methods for detecting neurological disorders comprising administering to a patient in need compounds of formula (I) capable of binding to tau proteins and ?-amyloid peptides are presented herein. The invention also relates to methods of imaging A? and tau aggregates comprising introducing a detectable quantity of pharmaceutical formulation comprising a radiolabeled compound of formula (I) and detecting the labeled compound associated with amyloid deposits and/or tau proteins in a patient. These methods and compositions enable preclinical diagnosis and monitoring progression of AD and other neurological disorders.

Abstract: Novel compounds and pharmaceutical compositions having MMP inhibitory activity are disclosed, which have been found to be particularly useful in the prevention, treatment and diagnostic imaging of diseases associated with an unpaired activity of MMP, amongst others MMP-2, MMP-8, MMP-9 and/or MMP-13 to name a few. The compounds of the present invention are useful for the prevention, the treatment and the in vivo diagnostic imaging of a range of disease states (inflammatory, malignant and degenerative diseases) where specific matrix metalloproteinases are known to be involved.

Abstract: Imaging agents of formula (I) and methods for detecting neurological disorders comprising administering ti a patient in need compounds of formula (I) capable of binding to tau proteins and ?-amyloid peptides are presented herein. The invention also relates to methods of imaging A? and tau aggregates comprising introducing a detectable quantity of pharmaceutical formulation comprising a radiolabeled compound of formula (I) and detecting the labeled compound associated with amyloid deposits and/or tau proteins in a patient. These methods and compositions enable preclinical diagnosis and monitoring progression of AD and other neurological disorders.