Abstract: Systems and methods for preserving a pulse width modulation (PWM) resolution while increasing the frequency of a pulse width modulation (PWM) clock are provided. An electronic display backlight system may include a backlight element and backlight dimming circuitry. The backlight element may be driven according to a pulse width modulation (PWM) signal over a PWM clock cycle equal to a multiple M of a baseline PWM clock frequency associated with a baseline PWM resolution. The backlight dimming circuitry may receive a brightness code of the baseline PWM resolution and generate the PWM signal at least in part by dividing the brightness code by M.

Abstract: The application provides a porous carbon block material having high elasticity and high sealing, and provides a method for preparing the same. Particularly, the present application provides a porous carbon block material, wherein the porous carbon block material has a pore size in the range of from 3 nm to 100 nm, a porosity of from 50% to 87%, and the pores in the material are closed pores. In addition, the application provides a method for preparing the porous carbon block material according to the present application. The porous carbon block material according to the present application has small pore size, high porosity, and closed pores, and thus has high strength combined with high elasticity, high sealing property, and low density. Hence, the porous carbon block material according to the present application may be used as a sealing material.

Abstract: The present invention discloses a kelp harvester. The kelp harvester includes a ship body and a U-shaped tripping piece, where two working chain racks are symmetrically arranged on both sides of the ship body; each working chain rack is provided with a chain and a chain driving device used to drive the chain to operate; multiple rope clamping devices are fixedly arranged on each chain; the rope clamping devices can clamp main ropes, so that when the chains operate, the rope clamping devices can drive the ship body to move along with the operation of the chains; the U-shaped tripping piece is rotatablely connected to the ship body through a hinge; and the ship body is further fixedly provided with a limiting baffle, and the limiting baffle limits the U-shaped tripping piece to stopping rotation when the U-shaped tripping piece is in a vertical state.

Abstract: A display device include a first light emitting diode (LED), a second LED, and at least one processor of a driver. The processor drives the first LED and the second LED. The processor determines a first pulse width associated with the first LED and a second pulse width associated with the second LED based on a level of brightness to be emitted by the first LED and the second LED. The processor also receives a gap clock and determines a first pulse start time and a first pulse end time for the first LED based on the first pulse width. Moreover, the processor determines a second pulse start time and a second pulse end time for the second LED based on the first pulse end time, the second pulse width, and/or the gap clock, in which the first pulse end time and the second pulse end time are different.

Abstract: The technology disclosed relates to in-cloud, constant time content scanning. In particular, it relates to obtaining administrative access to a cloud environment account for bulk content scanning of storage resources, and deploying serverless, containerized scanners to run locally on the cloud environment account, including queuing objects in the cloud environment account, partitioning the objects into a plurality of object chunks, and depending upon a M number of object chunks in the plurality of object chunks, initializing a N number of instances of the serverless, containerized scanners, where M»N. Each initialized serverless, containerized scanner scans a corresponding object chunk exactly once to detect a multiplicity of different data patterns.

Abstract: There is provided mechanisms for determining time-of-arrival of a PRACH preamble. A method is performed by a radio access network node. The radio access network node is configured for beamformed communication in a set of beams. The method comprises receiving, from a UE and at a TRP of the radio access network node, a PRACH preamble. The method comprises determining a weight factor value for the PRACH preamble. The weight factor value is dependent on beam information mapped to the PRACH preamble. The beam information identifies one of the beams in the set of beams. The method comprises determining time-of-arrival of the PRACH preamble using hypothesis testing that incorporates the weight factor value.

Abstract: The technology disclosed relates to streamlined analysis of security posture of a cloud environment. In particular, the disclosed technology relates to a system that analyzes data posture in a cloud environment database using a snapshot of the database. A computer-implemented method includes receiving a request to access a database in the cloud environment, wherein the database includes a first authentication requirement. The method includes identifying a snapshot of the database, wherein the snapshot includes a second authentication requirement that is different than the first authentication requirement. The method includes accessing the snapshot using the second authentication requirement, generating a representation of the database using the snapshot, and generating a data posture analysis result indicative of a data posture of the database based on scanning the representation of the database.

Abstract: Disclosed are methods, systems, apparatus, and computer programs for self-learning geofences is disclosed. In one aspect, a method involves gathering a plurality of data points associated with one or more Citizens Broadband Radio Service (CBRS) deployers; determining respective identifiers of the one or more CBRS deployers associated with the plurality of data points; clustering, based on the respective identifiers of the one or more CBRS deployers, the plurality of data points into one or more clusters, where each cluster is associated with one of the one or more CBRS deployers, and where each cluster is associated with a geofence of a network of the one or more CBRS deployers; identifying an opportunity for uploading the one or more clusters to a central server; and uploading the one or more clusters to the central server during the identified opportunity.

Abstract: The technology disclosed relates to in-cloud, constant time content scanning. In particular, it relates to obtaining administrative access to a cloud environment account for bulk content scanning of storage resources, and deploying serverless, containerized scanners to run locally on the cloud environment account, including queuing objects in the cloud environment account, partitioning the objects into a plurality of object chunks, and depending upon a M number of object chunks in the plurality of object chunks, initializing a N number of instances of the serverless, containerized scanners, where M>>N. Each initialized serverless, containerized scanner scans a corresponding object chunk exactly once to detect a multiplicity of different data patterns.

Abstract: This application relates to an electrode plate, an electrochemical apparatus, and an apparatus thereof. The electrode plate includes a current collector, an electrode active material layer provided on at least one surface of the current collector, and an electrical connection member electrically connected to the current collector. The electrode active material layer is provided at a zone referred to as a membrane zone on a main body portion of the current collector, the electrical connection member and the current collector are welded and connected at a welding zone referred to as an adapting welding zone at an edge of the current collector, and a transition zone is referred to as an extension zone, where the transition zone is of the current collector between the membrane zone and the adapting welding zone and coated with no electrode active material layer. The current collector is a composite current collector.

Abstract: Systems and methods are disclosed for parallelizing service function chains.

Abstract: A method for producing hydrogen from pork by using photosynthetic organisms includes: 1) mixing pork and trypsin, and adding a citric acid-sodium citrate buffer solution to a mixture of the pork and the trypsin; adjusting the pH of the citric acid-sodium citrate buffer mixed with the pork and the trypsin to neutral, to yield a neutral solution; adding a hydrogen-production medium and photosynthetic bacteria HAU-M1 in the late logarithmic phase to the neutral solution; and 2) placing a mixture of the neutral solution, the hydrogen-production medium, and the photosynthetic bacteria HAU-Ml in an incubator at 28-32° C. and a light intensity of 2800-3200 lux in the nitrogen atmosphere for hydrogen production.

Abstract: Recombinant BCG, a preparation method therefor and an application thereof. A shuttle plasmid that can express a FimH protein on the surface of BCG is constructed, and a gene fragment that expresses the FimH protein is transformed into wild-type BCG to thereby obtain recombinant BCG. Upon verification, the recombinant BCG can express the FimH protein on the surface of BCG; therefore, the BCG can specifically bind to subjects that can selectively bind to the FimH protein. The recombinant BCG can also enhance the local innate immune effect and adaptive immune effect induced by BCG and the anti-tumor effect of peripheral blood mononuclear cells, and also significantly improves the effect of BCG against bladder tumors, and is used to treat bladder tumors.

Abstract: Techniques of keyless authentication of computing services in distributed computing systems are disclosed herein. One example technique includes upon receiving a command to instantiate a computing service, transmitting a request to an authentication service for an identity assertion token corresponding to an application execution of which instantiates the computing service. The example technique can also include upon receiving the requested identity assertion token, storing the received identity assertion token in the container and modifying an entry of a configuration file in the container that allows the instantiated computing service to access the stored identity assertion token and authenticate to the authentication service using the identity assertion token.

Abstract: Methods and systems for explainable machine learning are described. In an example, a processor can receive a data set from a plurality of data sources corresponding to a plurality of domains. The processor can train a machine learning model to learn a plurality of vectors that indicate impact of the plurality of domains on a plurality of assets. The machine learning model can be operable to generate forecasts relating to performance metrics of the plurality of assets based on the plurality of vectors. In some examples, the machine learning model can be a neural attention network with shared hidden layers.

Abstract: Provided are crystalline forms of pyrazine-2(1H)-ketone compound and a preparation method thereof; specifically disclosed are a method for preparing the compound of formula (II) and crystalline forms thereof.

Abstract: The present utility model relates to a device for improving gas detection in a photoionization detector. A gas detector is provided. The device reduces interference of photoelectric noise on the reading of the gas detector for target gases such as volatile organic compounds.

Abstract: An acoustic monitoring system and method for the health status of an offshore wind turbine and an ocean wave are provided. The acoustic monitoring system includes a first laser transmitter, a second laser transmitter, a telephoto camera provided at a hub, a vibration detection sensor provided on a tower of a wind turbine, and four acoustic detection sensors arranged at an interval of 90° along the circumference of the tower. The first and second laser transmitters are arranged at the bottom of a nacelle of the wind turbine and emit laser lights vertically downward. The first laser transmitter, the second laser transmitter, the telephoto camera, the vibration detection sensor, and the acoustic detection sensors are connected to a data acquisition and conversion module through a transmission module. The acoustic monitoring system combines laser light detection with acoustic signal feature detection to improve stability and safety of the offshore wind turbine.

Abstract: System for image correction in PET is provided. The system may acquire a PET image and a CT image of a subject. The system may generate, based on the PET image and the CT image, an attenuation-corrected PET image of the subject by application of an attenuation correction model. The attenuation correction model may be a trained cascaded neural network including a trained first model and at least one trained second model downstream to the trained first model. During the application of the attenuation correction model, an input of each of the at least one trained second model may include the PET image, the CT image, and an output image of a previous trained model that is upstream and connected to the trained second model.

Abstract: The present invention disclosed a crystal form of pyrazine-2(1H)-ketone compound and a preparation method therefor. Specifically disclosed is a method for preparing a compound of formula (II) and a crystal form thereof.