Abstract: Disclosed are a measurement device and a measurement method for zero-point positioning of a machine tool rotary axis. The measurement device includes a mounting frame which is provided with a non-contact detection module. The measurement device includes a communication module and a data processing module. An input terminal of the communication module is connected to the non-contact detection module. An output terminal of the communication module is connected to the data processing module. Compared with the prior art, the present disclosure replaces a mandrel in the prior art with the non-contact detection module. By adjusting an effective range of the non-contact detection module, all parameters are collected at the first time when calibrating a reference detection surface. Results are automatically calculated and output.

Abstract: The technical field of medicine, relates to a pyridopyrimidine derivative and the use thereof, and specifically relates to a pyridopyrimidine derivative and a pharmaceutical composition including the compound, and the use thereof in the preparation of a medicine for treating diseases related to the PD-1/PD-L1 signaling pathway.

Abstract: A power tool includes: a functional element; an electric motor including a stator and a rotor and configured to drive the functional element to rotate; a power supply module configured to supply power to the electric motor; a driver circuit electrically connected to the electric motor and the power supply module and configured to apply a voltage of the power supply module to the electric motor; and a controller electrically connected to the driver circuit and configured to output a control signal to the driver circuit. The controller is configured to, when the electric motor is overloaded, adjust a current limit value supplied to the electric motor and control the driver circuit in a first control mode, so as to cause a voltage of the electric motor to vary in a quasi-sine wave with a rotor position of the electric motor.

Abstract: The present invention provides an etching composition and its application. The etching composition comprises a hydroxylamine, a surfactant, a metal corrosion inhibitor, an amine pH modifier, an organic acid and water. The etching composition of the present invention can be used for the cleaning of cobalt layer processes above 7 nm, and has good cleaning ability for polymer residues, metal oxides, and fluorides after plasma ashing, as well as good compatibility with TiN and Low-K materials, and a large process operation window.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a station may transmit, to an access point and using a pairwise transient key (PTK) that is based at least in part on an Snonce and an Anonce, a reassociation request that indicates message integrity check (MIC) information. The station may receive, from the access point, a reassociation response that indicates MIC information. The station may perform a reassociation with the access point based at least in part on a receipt of the reassociation response. Numerous other aspects are described.

Abstract: A document authenticity identification method is provided. A dynamic anti-counterfeiting point is detected in each document image of a subset of a plurality of document images. A static anti-counterfeiting point is detected in a document image of the plurality of document images. A static anti-counterfeiting point feature is generated based on image feature information of the static anti-counterfeiting point that is extracted from the document image. A dynamic anti-counterfeiting point feature is generated based on image feature information of the dynamic anti-counterfeiting point and variation feature information of the dynamic anti-counterfeiting point. A first authenticity result corresponding to the static anti-counterfeiting point is determined based on the static anti-counterfeiting point feature. A second authenticity result corresponding to the dynamic anti-counterfeiting point is determined based on the dynamic anti-counterfeiting point feature.

Abstract: Disclosed are a method and system for short-circuit protection of emergency starting power supply. An electrical parameter of an emergency starting power supply is detected multiple times at a relatively high frequency, so as to identify whether there is an exception according to the change difference and change direction of the electrical parameter, whether the emergency starting power supply is short-circuited according to the counting determination results, and then exception protection is implemented, so that a normal start state and a short-circuit state are effectively distinguished, thereby avoiding damage caused by a short circuit. The present disclosure has good adaptability and can be adapted to various start power supplies and automobile start loads, and it can be combined with an existing starting power supply circuit structure, an additional sensing device is not required, thereby improving the use safety and experience of the emergency starting power supply.

Abstract: Apparatuses, systems, and techniques to estimate exponent values to be used in data type conversions. In at least one embodiment, one or more largest exponent values of a plurality of floating point operands are identified based, at least in part, on calculating one or more probabilities of less than all of the plurality of floating point operands having the one or more largest exponent values.

Abstract: Apparatuses, systems, and techniques to perform one or more operations using a tensor. In at least one embodiment, one or more circuits are to perform an application programming interface (API) to cause parameters indicating operands and dimensions of operands of two or more tensor contractions to be stored.

Abstract: Apparatuses, systems, and techniques to perform one or more operations using a tensor. In at least one embodiment, one or more circuits are to perform an application programming interface (API) to cause two or more tensor contractions to be performed based, at least in part, on one or more input parameters of the API.

Abstract: The present disclosure relates to cinnamobactin and the use thereof in the treatment of bacterial infections. The cinnamobactin has the following chemical structural formula (I-1). The cinnamobactin uses cinnamoylhydroxamic acid as a parent nucleus, has a modification group at the para-position or the meta-position of a benzene ring, and can be used for treating bacterial infections.

Abstract: One example method includes accessing a dataset, selecting a list of parameters of the dataset, each of the parameters being selected based on a determination that the parameter is affecting a size of the dataset and/or affecting an amount of data storage space consumed by the dataset, performing a counterfactual analysis using the parameters, and using results of the counterfactual analysis to generate a recommendation that identifies one or more data protection actions which influence utilization of the data storage space, and modifying utilization of the data storage space by implementing one of the data protection actions.

Abstract: The present application discloses a method for detecting cigarette appearance defects based on variational Bayesian inference. In a cigarette appearance defect detection scenario, in order to solve the problem that a current point estimation-based machine learning algorithm leads to an overconfidence decision in a data scarcity area, the present application proposes a variational inference-based Bayesian method to improve a SSD backbone network. The present application can improve the accuracy of defect detection without losing the processing speed, not only saving a large amount of manpower and material resources, but also effectively providing reliable technical support for finding the root causes of defect types. Thus, it achieves intelligent quality risk management and control in a cigarette production workshop.

Abstract: The present invention discloses a conductive silver aluminum paste, a preparation method, an electrode, and an N-type Topcon battery. The conductive silver aluminum paste comprises silver powder, metal powder containing aluminum element, powder containing silicon or boron element, glass powder, and organic carrier; wherein, when defining the total weight of the conductive silver aluminum paste as 100%, the weight percentage content of each component is: silver powder 80.0%-90.0%, metal powder containing aluminum element 0.5%-3.0%; powder containing silicon or boron element 0.1%-1.0%; glass powder 1.5%-6.0%; organic carrier 7.0%-15.0%. The present invention meets requirements for electrode materials of current development of N-type Topcon batteries well, and has advantages of low contact resistances, high open circuit voltages, high photoelectric conversion efficiency, and high output power.

Abstract: In a collision body setting method of a virtual item, a construction interface of a user generated content (UGC) editor is output for display. The construction interface includes a virtual item construction element of a virtual item to be constructed in a virtual environment. The UGC editor is configured to generate at least two levels of candidate collision bodies for the virtual item. A setting operation that indicates a first level of candidate collision body among the at least two levels of candidate collision bodies to be associated with a collision body of the virtual item is obtained. The collision body of the virtual item is output for display based on the setting operation.

Abstract: A wearable device includes a metal frame, a printed circuit board PCB, and a first feeding element, where a slot is formed between the metal frame and the PCB. The metal frame includes a first feed point, a first ground point, and a second ground point, and the metal frame is grounded at the first ground point and the second ground point. The metal frame is divided into a first area and a second area by the first ground point and the second ground point, and a circumferential length corresponding to the first area is greater than a circumferential length corresponding to the second area. The first feed point is disposed in the first area, and a distance between the first feed point and the first ground point along the metal frame is less than one third of the circumferential length corresponding to the first area.

Abstract: A detachable moving snap-fit fastener, comprising: a housing (1); a snap-fit fastener assembly (2), which is arranged in the housing and is at least partially arranged outside the housing to be snap-fitted with the outside; and a rotating member, which is movably connected to the housing and at least partially extends to the snap-fit fastener assembly, wherein the rotating member rotates to drive at least part of the snap-fit fastener assembly to extend out of or retract into the housing.

Abstract: The present invention relates to a method for separating and purifying CVB1, and particularly, relates to a method for purifying CVB1 virus by using a heparin affinity medium.

Abstract: A power tool includes: a functional element; an electric motor including a stator and a rotor and configured to drive the functional element to rotate; a power supply module configured to supply power to the electric motor; a driver circuit electrically connected to the electric motor and the power supply module and configured to apply a voltage of the power supply module to the electric motor; and a controller electrically connected to the driver circuit and configured to output a control signal to the driver circuit. The controller is configured to, when the electric motor is overloaded, adjust a current limit value supplied to the electric motor and control the driver circuit in a first control mode, so as to cause a voltage of the electric motor to vary in a quasi-sine wave with a rotor position of the electric motor.