Abstract: A magnetic sensing device including a substrate having a supporting surface on which a first sensing area, a third sensing area, and a second sensing area are consecutively arranged in a direction of movement. The first, the second, and the third sensing areas are provided with a first midline, a second midline, and a third midline in the direction of movement, respectively. The first and second midlines are symmetrical with respect to the third midline. The first and second sensing areas are jointly configured to output a first output signal. The third sensing area is configured to output a second output signal. A phase difference between the first and second output signals is 90 degrees, and the first and second output signals are jointly configured to determine the distance or the speed or the angle of movement and the direction of movement of the relative motion.

Abstract: A piston limiting structure, including: a cylinder, a piston, and a flange provided with a limiting piece, the cylinder has a piston hole perpendicular to an axial direction of the cylinder and penetrating through the cylinder, and a projection of the piston hole in a penetrating direction is circular. The piston is disposed in the piston hole in a form-fit manner and is slid in the piston hole in a reciprocating manner. A side wall of the piston is provided with a thrust groove, a bottom surface of the thrust groove forms a thrust surface on the side wall of the piston, and the thrust groove does not penetrate through two ends of the side wall of the piston along an axial length of the piston. The limiting piece abuts against the thrust surface.

Abstract: A transmit beamforming method for integrated multi-antenna systems with joint near-field sensing and far-field communication, which includes: (1) establishing a communication signal transmission model and a communication channel model, and analyzing an upper limit of communication spectrum efficiency; (2) acquiring an optimal communication beam matrix based on the communication channel model; (3) establishing a near-field sensing signal model; (4) generating an optimal radar beam matrix based on an antenna array response vector of a radar detection target; (5) introducing a compromise factor to construct an initial optimization problem of an integrated beamforming matrix in power constraint based on the established near-field sensing signal model; and (6) transforming and solving the constructed initial optimization problem to obtain the integrated beamforming matrix.

Abstract: A gamma tap circuit includes: (i) a first gamma division circuit configured to generate a first gamma tap voltage by performing voltage division of an upper gamma tap voltage and a lower gamma tap voltage, in-sync with a first clock signal CK1 and a first complementary clock signal CK1b, which is 180° out-of-phase relative to CK1, (ii) a second gamma division circuit configured to generate a second gamma tap voltage by performing voltage division of the upper gamma tap voltage and the first gamma tap voltage, in-sync with a second clock signal CK2 and a second complementary clock signal CK2b, which is 180° out-of-phase relative to CK2, and (iii) a third gamma division circuit configured to generate a third gamma tap voltage by performing voltage division of the first gamma tap voltage and the lower gamma tap voltage, in response to CK2 and CK2b, which have a lower frequency relative to CK1 and CK1b.

Abstract: Embodiments of this application disclose a method and for dividing geographical regions performed by a computing device. The method includes: encoding latitudes and longitudes in a first dataset to obtain a second dataset, the first dataset recording N groups of latitudes and longitudes, and the second dataset recording N region numbers, and each of the region numbers being used for representing a corresponding geographical region; obtaining a third dataset from the second dataset, the third dataset recording M groups of the region numbers, corresponding central point latitudes and central point longitudes in the geographical regions represented by the region numbers; and dividing the geographical regions represented by the M groups of region numbers into P regions according to the third dataset, each of the regions including at least one of the geographical regions represented by the corresponding group of region numbers.

Abstract: An early warning method for safety production risk of tailings pond based on risk ranking is provided. The early warning method includes: monitoring and collecting internal basic data of a tailings pond in real-time, and performing a basic monitoring and a basic early warning; collecting geographical location data, meteorological data, and historical geological disaster data of an area where the tailings pond is located; performing risk ranking on a safety production risk of the tailings pond, thereby obtaining a risk level of the tailings pond; and collecting case data of global tailings pond accidents and hazard degree data thereof, acquiring accident solution strategies for the global tailings pond accidents, performing management and monitoring on the tailings pond, setting parameters in a process of the basic monitoring, and performing a ranked early warning on the safety production risk of the tailings pond based on the risk level.

Abstract: Transistor devices are provided. In one example, the transistor device includes a channel layer. The transistor device includes a multilayer barrier structure on the channel layer. The multilayer barrier structure includes a first Group III-nitride layer and a second Group III-nitride layer on the first Group III-nitride layer and opposite to the channel layer. The first Group III-nitride layer has a thickness greater than a thickness of the second Group III-nitride layer. An aluminum concentration of the first Group III-nitride layer is at least two times greater than an aluminum concentration of the second Group III-nitride layer.

Abstract: An early warning method for safety production risk of tailings pond based on risk ranking is provided. The early warning method includes: monitoring and collecting internal basic data of a tailings pond in real-time, and performing a basic monitoring and a basic early warning; collecting geographical location data, meteorological data, and historical geological disaster data of an area where the tailings pond is located; performing risk ranking on a safety production risk of the tailings pond, thereby obtaining a risk level of the tailings pond; and collecting case data of global tailings pond accidents and hazard degree data thereof, acquiring accident solution strategies for the global tailings pond accidents, performing management and monitoring on the tailings pond, setting parameters in a process of the basic monitoring, and performing a ranked early warning on the safety production risk of the tailings pond based on the risk level.

Abstract: An adaptive characteristic spectral line screening method and system based on atomic emission spectrum are provided, the method includes: using a set characteristic screening optimization method to perform a plurality of optimization rounds of characteristic screening, obtaining an initialized spectral dataset of each round of the characteristic screening and initialized characteristic population genes; obtaining an optimal characteristic population gene of each round by a set analysis method, a fitness function, and an iteration of a genetic algorithm; obtaining an optimized characteristic spectral information set when the plurality of optimization rounds reach set optimization rounds; performing combination statistics and discriminant analyses on the optimized characteristic spectral information set to complete an adaptive characteristic spectral line screening.

Abstract: A high electron mobility transistor comprises a semiconductor layer structure that includes a channel layer and a barrier layer and source and drain contacts on the semiconductor layer structure. A gate contact and a multi-layer passivation structure are provided on the semiconductor layer structure between the source contact and the drain contact. The multi-layer passivation structure comprises at least first and second silicon nitride layers that have different material compositions. A spacer passivation layer is provided on sidewalls of the first and second silicon nitride layers. A material composition of the spacer passivation layer is different than a material composition of at least one of the layers of the multi-layer passivation structure.

Abstract: A secure data path enables sending and receiving message applications to transmit instructions for recalling a sent message and updating or deleting content of the recalled message in an inbox of a recipient. In response to a recall request from the sending message application over the secure channel, since the receiving message application has access to a recipient inbox, the receiving message application may process the recall request to update and/or delete content of a received message—even after a recipient has read the received message. Since the content of a received message may be updated or deleted in a recipient inbox, robust and reliable message recall is provided.

Abstract: An analog-to-digital conversion method, an analog-to-digital converter and an image sensor, are provided. The analog-to-digital conversion method includes a first conversion period and a second conversion period; in the first conversion period and the second conversion period, a first counter and the second counter have different effective clock edges and work in a time-sharing way using the first count clock signal and the second count clock signal respectively; in the second conversion period, count directions of the first counter and the second counter are reversed, and the count results in the first conversion period are used as an initial value of the second conversion period; and the conversion result is output based on the first count result and the second count result.

Abstract: A secure data path enables sending and receiving message applications to transmit instructions for recalling a sent message and updating or deleting content of the recalled message in an inbox of a recipient. In response to a recall request from the sending message application over the secure channel, since the receiving message application has access to a recipient inbox, the receiving message application may process the recall request to update and/or delete content of a received message—even after a recipient has read the received message. Since the content of a received message may be updated or deleted in a recipient inbox, robust and reliable message recall is provided.

Abstract: Provided herein are high-throughput, high-quality methods of consecutive in situ hybridization for analysis of the genome and/or transcriptome in an individual cell with single-molecule sensitivity. In particular, provided herein are methods comprising visualizing individual genomic loci or transcripts as single detectable signals (e.g., fluorescent spots) which remain in place during consecutive hybridization. In each cycle of consecutive hybridization, detectably labeled probes hybridize to the probe used in the previous cycle, and also introduce the binding sites for the probe of the following cycle. Through consecutive cycles of probe hybridization, imaging, and signal removal, different genomic loci or RNA species can be identified by unique detectable signal profiles (e.g., fluorescent spots with unique color sequences). The number of varied color sequences increases exponentially with the number of hybridization cycles, which enables the genome or transcriptome-wide analysis.

Abstract: A polypeptide or protein directional modification method based on sulfhydryl-alkenyl azide coupling is provided. The method uses a sulfhydryl group-containing compound and a compound containing alkenyl azide group as reactants to generate an amino acid containing ?-carbonyl sulfide, a polypeptide containing ?-carbonyl sulfide and a protein bioconjugate containing ?-carbonyl sulfide, thereby achieving a chemical modification. The method is mild in conditions and wide in solvent selectivity, a reaction temperature is in a range of 37 degrees Celsius (° C.) to 40° C., and a reaction time is in a range of 10 minutes to 48 hours. The method is promising in preparing functional polypeptides or functional proteins, protein labeling, and biological medicine.

Abstract: Provided herein are methods and systems for sensitive and multiplexed in situ analysis of samples such as biological samples using cleavable hapten linked targeting agents and cleavable detectably-labeled hapten-binding agents. In particular, provided herein are methods for multiplexed single-cell in situ biomolecule profiling in samples, including fixed or fresh tissues, and also allows the investigation of the different cell compositions and their spatial organizations in intact tissues through consecutive cycles of probe hybridization, fluorescence imaging, and signal removal.

Abstract: A transistor includes a first passivation layer on a semiconductor layer of the transistor between a source contact and a drain contact. The first passivation layer includes a portion having a topological change. The transistor further includes a discontinuous barrier layer on the portion of the first passivation layer having the topological change. The discontinuous barrier layer is configured to reduce ingress of moisture in the portion of the first passivation layer.

Abstract: A gallium nitride-based RF transistor amplifier comprises a semiconductor layer structure comprising a barrier layer on a channel layer, first and second source/drain regions in the semiconductor layer structure, first and second source/drain contacts on the respective first and second source/drain regions, and a longitudinally-extending gate finger that is between the first and second source/drain contacts. The first and second source/drain contacts each has an inner sidewall that faces the gate finger and an opposed outer sidewall. The first source/drain region extends a first distance from a lower edge of the inner sidewall of the first source/drain contact towards the second source/drain region along a transverse axis that extends parallel to a plane defined by the upper surface of the semiconductor layer structure, and extends a second, smaller distance from a lower edge of the outer sidewall of the first source/drain contact away from the second source/drain region.

Abstract: A transistor device includes a semiconductor layer, source and drain contacts on the semiconductor layer, a gate contact on the semiconductor layer between the source and drain contacts, and a field plate over the semiconductor layer between the gate contact and the drain contact. The transistor device includes a first electrical connection between the field plate and the source contact that is outside an active region of the transistor device, and a second electrical connection between the field plate and the source contact.

Abstract: A data linking system is described herein that links data records corresponding to a particular real estate property even if there are inconsistencies in the data records, the physical presence of the real estate property has changed over time, and/or the data records use different terminology. In some cases the data records are matched using a trained machine learning model. The data linking system can optionally generate a visualization of the data record linkage via interactive user interfaces. By linking data records despite the issues described above, the data linking system reduces the number of navigational steps a user performs to obtain data associated with a property and/or reduces data processing times. The disclosed system may be used to generate and maintain a comprehensive database of substantially all properties within a jurisdiction, in which a unique identifier is assigned to each property.