Abstract: A method and system for overwriting-based deletion of information and verification of deletion is provided, wherein the method at least includes: receiving a deletion request and/or a random seed; performing fine-grained overwriting on the information by means of random overwriting; in response to an extraction request for a post-deletion state, making a master node in a source domain of the information broadcast the extraction request to at least one slave node; and sending the post-deletion state fed back by the slave node and a related state-verification parameter to a verifying terminal, so that the verifying terminal verifies an overwriting result based on a verifiable pseudo-random function. Thus, the present application can effectively prevent information recovery after being logically deleted, and efficaciously ensure verifiability as well as non-recoverability of deleted information, thereby assuring non-recoverable deletion and providing verifiability of deletion to information subjects.

Abstract: Provided are methods of preparing source identifiable collections of nucleic acids from a plurality of sources, such as cells or cell nuclei, using a combinatorial indexing methodology. Generally, the methods include providing a first set of cellular source sub-portions, each sub-portion comprising multiple cellular sources of the initial plurality of cellular sources. First identifier tagged nucleic acids are then generated in the multiple cellular sources of each sub-portion of the first set using a template switching mediated reaction employing a template switch oligonucleotide comprising a first identifier, wherein the first identifier of the template switch oligonucleotides employed in the different sub-portions of the first set is the same within a given sub-portion but differs between the different sub-portions.

Abstract: Embodiments of the present disclosure provide a data processing method and system, a device, a storage system, and a medium. The data processing method includes: receiving a logic address corresponding to data to be processed; storing the logic address as a first access unit in a first storage pool; and in a case that the quantity of the stored first access units in the first storage pool meets a requirement, combining a plurality of first access units into a logic address group and storing the logic address group as a second access unit in a second storage pool so as to process the data based on the second access unit.

Abstract: A data processing method, system and device, and a medium are provided. The method comprises: receiving a data stream; dicing the data stream to obtain a plurality of segmented data blocks; respectively calculating verification information corresponding to the plurality of segmented data blocks; and sending the segmented data blocks and the corresponding check information as a target logic block to a storage device.

Abstract: A display substrate and a display apparatus are provided. The display substrate includes a base substrate, a crack detection line and an electrostatic discharge element electrically connected to the crack detection line. The base substrate includes a main body area, an auxiliary area, and a necked-down area connecting the main body area and the auxiliary area, and a display area of the display substrate is in the main body area. The crack detection line surrounds, at least in part, the display area and extends through the necked-down area to the auxiliary area. A length direction of the necked-down area is parallel to a first direction; the main body area, the necked-down area and the auxiliary area are connected in a second direction intersecting the first direction; and the electrostatic discharge element is located in the auxiliary area.

Abstract: The present disclosure relates to methods and compositions for oral delivery of nutrients and/or pharmaceuticals, particularly for tissue repair and regeneration of the body, and more particularly to methods and compositions for protecting the mucosal tissue from damages caused by irritants and for promoting repair and regeneration of damaged or dysfunctional mucosal tissue in the gastrointestinal tract, especially for the treatment of a gastrointestinal disorder such as Crohn's disease.

Abstract: An index creation method, a computing device, and a storage medium are provided. The method comprises: dividing storage records in logic sub-storage areas on the basis of the storage records and the logic sub-storage areas in a logic storage area divided in a physical storage area, the storage records comprising storage data; determining, from among a plurality of preset index formats according to the divided storage records, an index format matched with a record attribute; and creating a corresponding sub-index according to the determined index format so as to search for storage records according to the sub-index, the index format being able to cause the generated corresponding sub-index to occupy memory space smaller than a preset capacity. The index format matched with the record attribute is determined from among the plurality of preset index formats, the index format can cause the generated corresponding sub-index to occupy memory space smaller than the preset capacity.

Abstract: Disclosed are a touch panel, a preparation method therefor, and a display apparatus. The touch panel includes a touch region and a bonding region on a side of the touch region in a first direction. The bonding region includes: a chip region including a first edge, a second edge, a third edge, and a fourth edge, the first and second edges extend along a second direction, and the first direction intersects the second direction; multiple pins in the chip region and including multiple display pins and multiple touch pins, the multiple display pins are arranged along the first and second edges, the multiple touch pins are arranged along the third and fourth edges, and the multiple display pins are configured to be connected with display signal lines; multiple touch electrodes in the touch region; and multiple touch signal lines in the touch region and the bonding region.

Abstract: A method and system for deleting multi-copy personal data efficiently and securely is provided, wherein the personal data and its subject identifier are signed and uploaded to data domains and stored as personal data copies; the personal data copies along with its source and destination data are circulated among the data domains; the data domain receiving a deletion instruction transmits the deletion instruction to every relevant data domains based on the identifier of the personal data subject and the destination data and then performs deletion; and after completing the deletion, the data domain deposit its domain identifier and feedback data it receives into a log, and feed the log back to its superior data domain. And the system of the present disclosure includes a plurality of data domains that can perform the above operations, thereby realizing association-based storage, association-based deletion and verification of association-based deletion of multi-copy personal data.

Abstract: A method and system for trusted third-party audit of personal-information deletion is provided, wherein the method includes: acquiring log data of an arbitrary source-domain personal-information deleting body in a network and of its associated-domain personal-information deleting bodies; normalizing the log data according to predetermined parsing rules and thereby generating normalized log data; and performing consistency-of-notification analysis and operation-compliance analysis on the normalized log data by means of association analysis. The present application is based on an audit analysis of log files to identify whether the information deletion process conforms to the multi-dimensional or multi-level audit judgment conditions and to perform forensics on abnormal deletion of personal information in a timely manner, so as to ensure that personal-information deletion can satisfy requirements of internal control, industrial standards, policies and regulations.

Abstract: A heat exchanger apparatus includes at least one metal sheet with a corrugated surface, fabric covering at least a part of one surface of the at least one metal sheet to promote evaporation, and a wetting agent in the fabric to promote wetting of the fabric, the wetting agent also acting as an anti-microbial agent.

Abstract: Disclosed are a narrow pulse width laser, a method for emitting narrow pulse width laser, a device, and a storage medium. The narrow pulse width laser includes: a pulse signal controller and a pulse laser emitter. An output end of the pulse signal controller is connected to an input end of the pulse laser emitter. The pulse signal controller is configured to obtain a first pulse signal and a second pulse signal, the first pulse signal is identical to the second pulse signal, the first pulse signal is controlled to delay for obtaining a delay signal, there is a target phase difference between the delay signal and the second pulse signal, the delay signal is superimposed on the second pulse signal to obtain a target pulse signal.

Abstract: Disclosed are a touch substrate and a display device. The touch substrate includes a touch electrode layer with a mesh type structure; the touch electrode layer includes the first touch electrode including first touch sub-electrodes, and the second touch electrode including second touch sub-electrodes; each first touch sub-electrode includes first touch electrode meshes, and each second touch sub-electrode includes second touch electrode meshes; the touch electrode layer further includes boundary meshes located between adjacent first touch sub-electrode and second touch sub-electrode; each boundary mesh includes at least two first mesh lines; each first mesh line is provided with a first break; second mesh lines are arranged in a first touch electrode mesh and/or a second touch electrode mesh; the second mesh lines are provided with second breaks; and a pattern shape of the first mesh line and a pattern shape of the second mesh line are different.

Abstract: Described are examples for storing data on a storage device, including storing, in a live write stream cache, one or more logical blocks (LBs) corresponding to a data segment, writing, for each LB in the data segment, a cache element of a cache entry that points to the LB in the live write stream cache, where the cache entry includes multiple cache elements corresponding to the multiple LBs of the data segment, writing, for the cache entry, a table entry in a mapping table that points to the cache entry, and when a storage policy is triggered for the cache entry, writing the multiple LBs, pointed to by each cache element of the cache entry, to a stream for storing as contiguous LBs on the storage device, and updating the table entry to point to a physical address of a first LB of the contiguous LBs on the storage device.

Abstract: Disclosed are a display substrate and a preparation method therefor, and a display apparatus. The display substrate includes a display region and a bonding region, wherein the display region includes M pixel rows arranged sequentially, at least one pixel row includes a scan signal line and a plurality of sub-pixels arranged sequentially along an extension direction of the scan signal line, at least one sub-pixel includes a pixel drive circuit connected with the scan signal line, the pixel drive circuit at least includes a storage capacitor and a first transistor as a first initialization transistor, and the scan signal line at least includes a second scan signal line that controls the first transistor to be turned on or off, and in the at least one pixel row, the second scan signal line is arranged on a side of the storage capacitor close to a display region boundary.

Abstract: A method for detecting nucleic acid comprises the following steps: S1, performing isothermal amplification of nucleic acid to be detected; S2, performing secondary amplification of the product of step S1, and the product of step S2 is a nucleic acid single strand which can be alternatively produced by other ways; S3, hybridizing the product of step S2 with a probe; S4, degrading the probe: a nuclease is added into the hybridized product to degrade redundant single-strand nucleic acid; and, S5, detecting the product obtained in step S4. A kit for detecting nucleic acid comprises an isothermal amplification primer, a secondary amplification enzyme, a probe, a nuclease and a test strip. A use thereof comprises detection of pathogenic bacteria, viruses, transgenic nucleic acid, genetic material variation, tumor and DNA methylation variation. The aforementioned technical solution is rapid, specific and sensitive without a requirement of complex instruments and equipment.

Abstract: Provided is a pixel circuit configured to drive, in an Xth frame period, a light emitting device to emit light. The Xth frame period includes Y data writing stages and Z light emitting stages, in which a yth data writing stage includes a first sub-stage to a third sub-stage. The pixel circuit includes: a driving transistor; a first reset module configured to transmit, in the first sub-stage, a first initialization signal to the driving transistor in response to a first scanning signal; a gating module configured to perform, in the second sub-stage, a threshold compensation on the driving transistor in response to a second scanning signal; and an input module configured to transmit, in the third sub-stage, a data signal to the driving transistor in response to a third scanning signal. X, Y, Z and y are positive integers, y?Y, and Y>Z.

Abstract: A display substrate and a display device are provided. The display substrate includes a display area and a peripheral area. The display substrate includes: a plurality of subpixels located on the base substrate, at least part of the subpixels located in the display area includes a light-emitting element and a pixel circuit, the light-emitting element includes a light-emitting functional layer and a first electrode and a second electrode on both sides of the light-emitting functional layer in a direction perpendicular to the base substrate, the first electrode is located between the light-emitting functional layer and the base substrate. The pixel circuit includes a driving transistor and a light-emitting control transistor, and the first electrode of the light-emitting element is electrically connected to the light-emitting control transistor. The display substrate further includes a bonding area in the peripheral area and on a first side of the display area.

Abstract: A heterogeneous image registration method includes: performing edge detection on collected images, in combination with a curvature scale space strategy to extract contour curved segments in an edge image. Implementing a feature point detection strategy based on global and local curvature detecting feature points in the contour curved segments, and obtaining the nearest minimum local curvature of the feature points pointing to starting and end points of the contour, respectively. Calculating the number of neighborhood sampling points and neighborhood auxiliary feature points of neighborhoods on both edges of each of the feature points according to the nearest minimum local curvature. Using neighborhood auxiliary feature points and feature points to form a feature triangle, calculating an angle bisector vector and a main direction corresponding to the feature point in the feature triangle.