Abstract: Methods, systems, and devices for cryptographic key management are described. A memory device can issue, by a firmware component, a command to generate a first cryptographic key for encrypting or decrypting user data stored on a memory device. The memory device can generate, by a hardware component, the first cryptographic key based on the command. The memory device can encrypt, by the hardware component, the first cryptographic key using a second cryptographic key and an initialization vector. The memory device can store the encrypted first cryptographic key in a nonvolatile memory device separate from the hardware component.

Abstract: This disclosure is directed to a scanning device having a which has a tray set, a movable scanning module and an automatic document feeder. The tray set has a feeding tray and a first output tray. The movable scanning module is movable between a first position and a second position. The automatic document feeder has a flip path, a feeding path, an output path, a returnable path and a feeding wheel group. The feeding path is disposed corresponding to the first position and connecting with the feeding tray and the flip path. The output path is disposed corresponding to the second position and connecting with the first output tray. The returnable path has an intersection connecting with the flip path and the output path. The movable scanning module scans two sides of the sheet at the first position and the second position respectively.

Abstract: An ovonic threshold switch (OTS) selector and a memory device including the OTS selector is provided. The OTS selector includes a switching layer formed of a GeCTe compound further doped with one or both of nitrogen and silicon, and exhibits improved thermal stability and electrical performance.

Abstract: A data bus coupled to a plurality of memory devices is determined to be in a read mode. Responsive to determining that the data bus is in the read mode, a particular read operation identified in a particular memory queue of memory queues that include identifiers of one or more write operations and identifiers of one or more read operations is determined. The particular memory queue includes a highest number of read operations for a memory device of the memory devices. The particular read operation is transmitted from the particular memory queue over the data bus.

Abstract: A memory sub-system periodically performs a first wear leveling operation using a direct mapping function on a data management unit of a memory component in the memory sub-system at a first frequency. The memory sub-system further periodically performs a second wear leveling operation using indirect mapping on a group of data management units of the memory component at a second frequency, wherein the second wear leveling operation is performed less frequently than the first wear leveling operation.

Abstract: The present disclosure provides semi-insulating single-crystal silicon carbide bulk material and powder which include one polytype single crystal. The semi-insulating single-crystal silicon carbide bulk material has silicon vacancy inside, wherein the silicon-vacancy concentration is greater than 5E11 cm{circumflex over (?)}?3.

Abstract: The present disclosure relates to the field of special electronic gases, in particular to a method for purifying electronic-grade boron trichloride. The method includes the following steps: (S.1), filling an adsorption composition into adsorbers; (S.2), vacuumizing the adsorbers to remove air from the adsorbers, and then introducing a high-purity boron trichloride gas; and (S.3), introducing a boron trichloride feed gas into the adsorbers, such that the boron trichloride feed gas is in contact with the adsorption composition, and collecting a gas flowing out of the adsorbers to obtain an electronic-grade boron trichloride gas. According to the present disclosure, coordination formed between hydrogen chloride impurities and boron trichloride can be eliminated effectively, thereby improving adsorption and purification effects of the boron trichloride.

Abstract: The present invention provides an expandable anchor bolt system for securing a toilet to a closet flange. The system includes an anchor bolt with an expandable lower end designed to securely engage with a groove of the closet flange, and an upper end configured to accommodate fastening means. The expansion mechanism is activated by inserting an expansion pin that does not require tools and can lock to maintain the expanded state of the anchor bolt. The system further comprises a bolt cap for covering the upper end of the assembled components, offering an aesthetically pleasing finish and protection. The system is adaptable to various flange conditions, particularly suitable for installations involving damaged or compromised closet flanges. This invention simplifies the installation process while ensuring the stability and safety of the toilet installation, providing an improved method for toilet installation in both new construction and repair scenarios.

Abstract: Disclosed is a device for preparing a silicon carbide crystal including a crucible and a crystal expansion guide assembly. The crucible includes a crucible body and a crucible cover fixing a seed and covering the crucible body. The crystal expansion guide assembly includes a frame member and a tubular core member. The frame member is fixed to the crucible body, located between the crucible cover and a raw material accommodated in the crucible body, and provided with a through hole with a diameter greater than a diameter of a growth surface of the seed. The tubular core member is mechanically connected to an inner wall of the through hole. During a crystal growth process, the tubular core member falls off due to contact with a growth front of a crystal. The frame member does not react with the crystal. Thus, a large-sized crystal ingot with high quality can be obtained.

Abstract: Disclosed is a silicon carbide crystal growth system including a crucible, a heating device and a seed holder. The crucible includes a crucible body and a crucible cover covering the crucible body. The heating device includes a quartz tube and an induction coil spirally wound on an outer wall of the quartz tube. The crucible is disposed in the quartz tube. The crucible is disposed coaxially with the quartz tube. The seed holder is disposed on the crucible cover and includes a seed holding surface for holding an off-axis seed and is perpendicular to a central axis of the crucible, and an angle between a normal direction of the induction coil and a growth direction of the off-axis seed is between 0 degrees and 10 degrees, so that a silicon carbide crystal grows from the off-axis seed along isotherms provided by the induction coil, thereby obtaining a silicon carbide boule.

Abstract: Disclosed is a method for purifying a graphite material, which includes the following steps of: after placing the graphite material in a graphite crucible, placing the graphite crucible into a heating furnace; after vacuuming the heating furnace, filling the heating furnace with a protective atmosphere, and controlling a pressure in the heating furnace to be less than 5 Torr; and heating the graphite crucible, by a heater disposed in the heating furnace, to control a temperature of the graphite crucible to be at least higher than melting point temperatures of some metal impurities in the graphite material for a preset time period, so that the some metal impurities in the graphite material are volatilized or carbonized, and the graphite crucible is purified. Therefore, while the graphite material is purified under a condition with high vacuum, high temperature and low pressure, the graphite crucible is also purified.

Abstract: Methods, systems, and devices for cryptographic key management are described. A memory device can issue, by a firmware component, a command to generate a first cryptographic key for encrypting or decrypting user data stored on a memory device. The memory device can generate, by a hardware component, the first cryptographic key based on the command. The memory device can encrypt, by the hardware component, the first cryptographic key using a second cryptographic key and an initialization vector. The memory device can store the encrypted first cryptographic key in a nonvolatile memory device separate from the hardware component.

Abstract: Embodiments of this application disclose example optical acquisition, tracking, pointing (ATP) antennas, to implement distribution of an annular Gaussian beam by using an axicon. One example optical ATP antenna includes an input light source, an axicon, and an optical imaging assembly, and central axes of the input light source, the axicon, and the optical imaging assembly coincide. The axicon is configured to: shape a first Gaussian beam emitted by the input light source into a first annular Gaussian beam, and transmit the first annular Gaussian beam to the optical imaging assembly. The optical imaging assembly is configured to: expand the first annular Gaussian beam into a second annular Gaussian beam, and transmit the second annular Gaussian beam to a lower optical path, where a diameter of the second annular Gaussian beam is greater than a diameter of the first annular Gaussian beam.

Abstract: Aspects of the present disclosure configure a system component, such as a memory sub-system controller, to provide adaptive media management based on memory component reliabilities. The controller can access configuration data to determine a reliability grade associated with individual groups of the memory components. The controller can then adaptively select between different media management operations based on the reliability grade associated with each individual group of the memory components.

Abstract: A computing system having a memory component with an embedded media controller. The memory component is encapsulated within an integrated circuit (IC) package. The embedded controller within the IC package is configured to: receive incoming packets, via a serial communication interface of the controller, from a serial connection outside of the IC package; convert the incoming packets into commands and addresses according to a predetermined serial communication protocol; operate memory units encapsulated within the IC package according to the commands and the addresses; convert results of at least a portion of the commands into outgoing packets; and transmit the outgoing packets via the serial communication interface to the serial connection outside of the IC package.

Abstract: Mechanisms for performing cross-screen movement operations in a multiple display device computer configuration are provided. An input is received, from a user interface device, that specifies a movement of a displayed element on a first display screen of the multiple display device computer configuration. A path of motion of the displayed element is calculated and compared to a junction margin of the first display screen to determine if the path of motion intersects the junction margin. In response to the path of motion intersecting the junction margin, the displayed element is placed at a first point of the junction margin. In response to receiving a subsequent input having a subsequent path of motion that intersects the junction margin, performing a cross-screen movement operation moving the displayed element to an end point of the subsequent path of motion in the second display screen.

Abstract: The present invention provides crystalline forms of (6S,7S)-6-fluoro-7-(2-fluoro-5-methylphenyl)-3-(tetrahydro-2H-pyran-4-yl)-5,6,7,8-tetrahydropyrido[2,3-d]pyrimidine-2,4(1H,3H)-dione (“Compound I”). Also provided are related pharmaceutical compositions, methods of preparation, and methods of treating hypertrophic cardiomyopathy (HCM), heart failure with preserved ejection fraction (HFpEF), diastolic dysfunction, left ventricular hypertrophy, and other cardiac diseases.

Abstract: A method for wireless channel frequency hopping synchronization in a PLC-RF integrated network having a first node, a second node, at least one PLC media and a RF media includes one of following characteristics: the first node uses the PLC media to transmit first frequency hopping data, and the second node receives the first frequency hopping data and then uses the first frequency hopping data to transmit or receive a packet on the RF media; the first node uses the PLC media to transmit second frequency hopping data, and the second node receives the second frequency hopping data and then transmits the second frequency hopping data on the PLC media; and the first node uses the RF media to transmit third frequency hopping data, and the second node receives the third frequency hopping data and then transmits the third frequency hopping data on the PLC media.

Abstract: Embodiments include methods, systems, devices, instructions, and media for limiting hot-cold swap wear leveling in memory devices. In one embodiment, wear metric values are stored and monitored using multiple wear leveling criteria. The multiple wear leveling criteria include a hot-cold swap wear leveling criteria, which may make use of a write count offset value. Based on a first wear metric value of a first management group and a second wear metric value of a second management group, the first management group and the second management group are selected for a wear leveling swap operation. The wear leveling swap operation is performed with a whole management group read operation of the first management group to read a set of data, and a whole management group write operation to write the set of data to the second management group.