Abstract: Systems and methods are provided for updating data in a computer network. An exemplary method includes: receiving a first data from one or more data servers; determining a second data for which a first update information is used to update at least one element of the second data; generating a second update information associated with the second data; generating a third update information by executing an operation that compares the first update information and the second update information; generating a third data by applying the third update information to the second data; allowing a user to select via a display device which of the different update elements to update the second data; generating a fourth update information by determining the selected different update elements to update the second data; and updating the second data using the fourth update information.

Abstract: A switching power supply apparatus has a line-to-ground capacitance C31 between a first winding terminal of a transformer and a conductor portion, and a line-to-ground capacitance C32 between a second winding terminal of the transformer and the conductor portion. The switching power supply apparatus is provided with a capacitor being connected between a first output terminal of a switching circuit and the first winding terminal of the transformer, and a capacitor being connected between a second output terminal of the switching circuit and the second winding terminal of the transformer. Capacitances of the capacitors C21, C22 are set to satisfy: C21>C22, for C31>C32; C21=C22, for C31=C32; and C21<C22, for C31<C32.

Abstract: A conducted electrical weapon may include an interposer. The interposer may be disposed in a bay of the conducted electrical weapon or may be coupled to a magazine insertable within the bay of the conducted electrical weapon. The interposer may include a cartridge separator. The cartridge separator may logically or physically define a plurality of cartridge compartments. Each cartridge compartment may be configured to receive and align with a cartridge loaded into a magazine.

Abstract: A refrigerator includes a cabinet, a door rotatably connected to the cabinet, a drawer disposed within a storage compartment of the cabinet to accommodate objects therein, a drawer guide that supports the drawer and guides the drawer and guides the drawer to move forward and rearward, an extraction mechanism that includes a base part that is disposed below the drawer and moves while the door is opened and closed, a rear frame that extends from the base part toward the rear side of the drawer and pushes the drawer forward when the base part moves forward, and an arm that extends forward from the rear frame and is disposed between the drawer and a side of the storage compartment, and an arm guide disposed between the storage compartment and the drawer to guide the arm to move forward and rearward.

Abstract: A drawer assembly includes a member having a first locking element. A drawer includes a frame and a handle having a first portion and a second portion. The first portion is coupled to the frame. The second portion is coupled to the first portion. A drawer release includes a first end and a second end and is rotatably coupled to the drawer. The first end includes a second locking element. The second portion is rotatable relative to the first portion to move the drawer release between a first orientation in which the second locking element directly engages the first locking element to prevent the drawer from translating relative to the member and a second orientation in which the second locking element is spaced apart from the first locking element to allow the drawer to translate relative to the member.

Abstract: Provided is an in-vehicle power conversion device in which a smoothing capacitor includes a first electrical connection portion, a second electrical connection portion, a mechanical connection portion, and a smoothing capacitor main body. The first electrical connection portion is electrically connected to a first conductor. The second electrical connection portion is electrically connected to a second conductor. The mechanical connection portion functions as an additional electrical connection portion configured to fix the smoothing capacitor main body to the first conductor or the second conductor to be electrically connected to a fixing destination of the smoothing capacitor main body.

Abstract: A method for data storage includes determining an expected expiration time of a new data file based on attribute information of the new data file and recorded attribute information of data files, in response to creation of the new data file in a level of a Log-Structured Merge Tree (LSM-Tree). Additionally, a block set corresponding to the expected expiration time is allocated for the new data file in a storage device. The recorded attribute information of the data files indicates a level where each of the data files is located, key information of each of the data files, and lifetime information of each of the data files. The data files that have been created comprise unexpired data files or both unexpired data files, and expired data files that expired within a preset period before creation time of the new data file.

Abstract: Techniques for storing and processing large volumes of data by increasing the number of partitions that customers can allocate and use for their streams while minimizing the physical footprint of the partitions is disclosed. In certain examples, the stream partitions are created as different logical partitions on a physical partition in a physical storage cluster of a distributed message streaming system. The disclosed system provides an improved process for reading messages stored in different logical partitions of a physical partition by identifying partition chunks in a physical partition that comprise subsets of messages associated with a logical partition and filtering out partition chunks that do not contain messages associated with the logical partition. The disclosed system reduces the amount of the physical partition that needs to be read to retrieve messages stored in different logical partitions thereby improving the overall performance of the distributed message streaming system.

Abstract: An electronic device according to various embodiments may comprise a power converter configured to generate DC(direct current) power based on power obtained from outside, a state detecting unit, comprising a first photo coupler and a first diode electrically connected with the first photo coupler, configured to detect a state of a user device that comprises the electronic device or is electrically connected with the electronic device, a driving power supply unit configured to supply driving power for the user device based on the DC power, a power cut-off unit, comprising a first field effect transistor (FET), configured to cut off the DC power provided to the driving power supply unit according to the state of the user device, a control unit electrically connected with the state detecting unit.

Abstract: A loudspeaker includes a diaphragm having a front surface facing in a forward direction for producing sound to be radiated outwardly from the loudspeaker in the forward direction and a back surface facing in a backward direction that is opposite to the forward direction; a magnet unit configured to provide magnetic field in a magnetic gap. The magnetic gap is located between a first portion of the magnet unit located radially inwards of the magnetic gap with respect to a longitudinal axis of the loudspeaker and a second portion of the magnet unit located radially outwards of the magnetic gap with respect to the longitudinal axis of the loudspeaker. A voice coil is configured to sit in the magnetic gap when the diaphragm is in a rest position.

Abstract: An antenna apparatus includes a grounding plate, a monopole, a first feeding component, and a second feeding component. A slot on the grounding plate includes a first slot and a second slot that interpenetrate each other, the second slot extends from the first slot to an edge of the grounding plate. The monopole includes a first stub and a second stub extending from the first stub to the second slot, the second stub and the second slot form a feeding structure. The first feeding component is electrically coupled to the grounding plate to feed the feeding structure to excite a first radiation mode of the antenna apparatus. The second feeding component is electrically coupled to the second stub to feed the feeding structure to excite a second radiation mode of the antenna apparatus. Polarizations in the two radiation modes are orthogonal.

Abstract: There is provided a method of generating a control strategy based on at least three switching states of a matrix converter. The at least three switching states are selected based on at least a predicted output current, associated with each switching state, and a desired output current. In particular, mathematical transformations of a desired output current as well as output currents associated with each of a plurality of switching states are used to identify appropriate switching states.

Abstract: Various embodiments relate to a data processing system comprising instructions embodied in a non-transitory computer readable medium, the instructions for masked sampling of polynomials for lattice-based cryptography in a processor, the instructions, including: determining a number m of random bits to be sampled based upon a sample bound parameter ?; producing a plurality of Boolean masked shares of a polynomial coefficient each having the determined number m of random bits using a uniform random function; determining that the polynomial coefficient is within a range of values based upon the sample bound parameter ?; converting the plurality of Boolean masked shares of the polynomial coefficient to a plurality of arithmetic masked shares of the polynomial coefficient; and shifting the plurality of arithmetic masked shares based upon the sample bound parameter ?.

Abstract: In one embodiment, a method comprises: generating and maintaining, by a replicator device in a secure peer-to-peer data network, a secure private key and secure public key; establishing a two-way trusted relationship with a second replicator device for a pairwise topology of two-way trusted replicator devices; establishing a two-way trusted relationship with a first endpoint device based on validating a secure attachment request using the secure private key, and obtaining a second secure public key of the first endpoint device; validating, using the second secure public key, a secure data packet from the first endpoint device and destined for the second endpoint device, and obtaining information for reaching the second endpoint device via the second replicator device; and securely signing the secure data packet, received from the first endpoint device and destined for the second endpoint device, into a secure forwarded packet for secure transmission to the second replicator device.

Abstract: A protection system for a battery system includes a battery control module configured to selectively open at least one contactor to isolate the battery system from a load in response to a sensed current being greater than a first threshold and within a first current range, at least one fuse connected between first and second terminals of the battery system and configured to open to isolate the battery system from the load in response to the sensed current being greater than a second threshold and within a second current range that is greater than and offset from the first current range, and an auxiliary protection module configured to selectively form a short circuit between first and second terminals in response to the sensed current being greater than the first threshold, less than the second threshold, and within a coverage gap region between the first and second current ranges.

Abstract: A system, method, and apparatus to securely transfer encrypted personal information between devices via code scanning is disclosed. This system provides convenience for both the user and the recipient of the private data in the forms of speed of information transfer and encrypted security of the information shared with the safety of being contactless exchange of information. The user stores encrypted personal information on their mobile computing device. Scanning a unique ID, generated by a recipient, initiates a secure connection between the user and the recipient. The user may be prompted to confirm the transfer of their personal information when the secure connection is established.

Abstract: A method is for detecting a ground fault in a load zone that can be connected to a direct-current network. The load zone includes a first load zone line connectable to a first main line of the direct-current network via a circuit breaker, and a second load zone line connectable to a second main line of the direct-current network via an interrupter switch. In an embodiment of the method, at least one line voltage at a load zone line is continually measured. If a ground fault is not detected at any main line of the direct-current network before the load zone is connected, the interrupter switch is closed while the circuit breaker is open, and a ground fault in the load zone is inferred if at least one line voltage does not significantly change after the interrupter switch is closed.

Abstract: A door assembly for an appliance includes a door frame configured to mount to a cabinet of the appliance and movable between an open position and a closed position. A catch mechanism can be provided within the door frame and configured to receive a latch projecting from the cabinet when the door frame is in the closed position.

Abstract: An earpiece includes a housing, a sound transmission component, a sound reception component, a force application structure and a trigger. A cavity is formed in the housing. The sound transmission component is provided in the cavity. The sound reception component is provided on the housing, and can move along a predetermined path. At least a retracted position and a stretched position are arranged on the predetermined path. The force application structure is connected to the sound reception component, and configured to drive the sound reception component to move to the retracted position or the stretched position. The earpiece in the present disclosure stretches out or retracts the sound reception component automatically. The earpiece in the present disclosure does not need the user to stretch out or retract the sound reception component manually, with good user experience.

Abstract: Systems and methods for managing cluster workloads. A system including one or more processors, and non-transitory memory including instructions. When executed by the one or more processors, the instructions perform method steps. The method steps may include receiving a query from a user device. The method steps may also include parsing a table property from the query, determining that the parsed table property is associated with a stored table, and identifying at least one cluster from the plurality of clusters that include the stored table. The method steps may further include identifying an optimal cluster from the at least one cluster and sending the query to the optimal cluster for execution.