Abstract: A quickly-mountable housing of an electronic device includes the holding member and a main body. The main body includes a lateral panel having a first edge, a second edge, a first groove, a second groove, a hooking structure, and two blocks. The first groove extends along a traversal axis and the second groove extends along a longitudinal axis. The hooking structure extends toward the traversal axis from a lower side wall adjacent to the second edge. The two blocks on two sides of the longitudinal axis extend from side walls of the second groove toward the longitudinal axis. The holding member in the second groove is in a closed position where a holding part of the holding member is within the first groove.

Abstract: A circuit board testing device electrically coupled to a measurement gauge tests a circuit board. The circuit board testing device includes a processor configured to configure measurement parameters of the measurement gauge, configure measurement rules for testing the circuit board, confirm a circuit of the circuit board to be tested according to the record of test data, control the measurement gauge to test the circuit of the circuit board to be tested when the measurement gauge is electrically coupled to the circuit of the circuit board to be tested, receive measurement data returned by the measurement gauge, and analyze a faulty region of the circuit board according to the record of test data and the measurement data.

Abstract: Methods of forming a contact for a semiconductor device with double barrier layer sets, and a device so formed are disclosed. Methods may include: depositing a first metal layer contacting a semiconductor substrate in a contact opening; depositing a first nitride barrier layer on the first metal layer; and annealing after depositing the first nitride barrier layer to form silicide region in a junction area underlying the contact opening with the first metal layer and the semiconductor substrate. After the annealing, a second metal layer may be deposited, followed by a second nitride barrier layer. A conductor is formed in a remaining portion of the contact opening. The double barrier layer sets prevent the formation of volcano defects and also advantageously reduce contact resistance.

Abstract: A current sensing circuit for use with a Rogowski coil arranged around a conductor having a primary current includes input terminals structured to receive an output voltage of the Rogowski coil, an analog to digital converter structured to convert a differential voltage to a digital differential voltage signal, a digital integrator structured to receive the digital differential voltage signal, to implement a discrete-time transfer function that is a transform of a transfer function of an analog integrator, and to output a digital integrator output signal, and a direct current blocker filter structured to remove a direct current bias from the digital integrator output signal and to output a digital current output signal that is proportional to the primary current in the conductor.

Abstract: Systems, computer program products, and methods that can integrate resources at a disaster recovery site are provided. One method includes generating, on a primary site, a set of storage snapshots based on combining another set of storage snapshots and incremental changes to mirrored data on a backup site in which the storage snapshots include a second snapshot format utilized on the backup site. The method further includes converting the set of storage snapshots from the second snapshot format to a first snapshot format utilized on the primary site to generate a yet another set of storage snapshots and converting, on the backup site, a set of storage snapshots including the incremental changes and the second snapshot format to the first snapshot format to generate still another set of eighth storage snapshots. The storage snapshots on both sites represent the same data in the same snapshot format without bulk data transfer.

Abstract: A circuit interrupter includes an electronic trip unit structured to receive power from a power supply. The electronic trip unit includes a start-up process and is structured to proceed through the start-up process when the electronic trip unit begins receiving power from the power supply and a timing circuit including a capacitor structured to begin charging when the electronic trip unit begins receiving power from the power supply. The electronic trip unit includes a processor that is structured to read a voltage across the capacitor when the start-up process has completed and to determine an elapsed time of the start-up process based on the read voltage across the capacitor.

Abstract: An electronic trip unit for a circuit interrupter includes a line side voltage sensing module for measuring first voltages on a line side of separable contacts, a load side voltage sensing module for measuring second voltages on a load side of the separable contacts, a current sensor, and a main controller. The main controller is further structured and configured to: (i) for each of a plurality of arc interruption events in the circuit interrupter, determine a mass loss due to contact erosion during the arc interruption event based on one or more of the first voltages, the second voltages and the current measured by the current sensor, (ii) determine a total mass loss based on each determined mass loss due to contact erosion, and (iii) monitor a remaining life of the separable contacts based on the determined total mass loss due to contact erosion.

Abstract: A multi-way valve includes an upper valve body, a lower valve body and a rotary valve core. The upper valve body and the lower valve body are provided respectively with an upper mounting hole and a lower mounting hole. The rotary valve core is provided passing through the upper mounting hole and the lower mounting hole, respectively. The rotary valve core is formed with a first stepped surface facing toward the upper valve body, and an adjusting nut, which is located below the rotary valve core, is provided in the lower mounting hole. The rotary valve core is moved up and down axially by adjusting the adjusting nut such that an axial clearance between the first stepped surface and the upper valve body is adjusted, so the rotary valve core may flexibly rotate at different temperatures to prevent the multi-way valve from being stuck.

Abstract: A circuit breaker assembly including a housing assembly and a tamper detection system. The housing assembly defines a sealed enclosure. The sealed enclosure includes a division interface. The sealed enclosure is structured to be in one of a closed, first configuration, wherein the sealed enclosure defines a generally enclosed space, and an open, second configuration, wherein the sealed enclosure allows access to the enclosed space, and wherein, as the sealed enclosure moves between the first configuration to the second configuration, the sealed enclosure is reconfigured at the division interface. The tamper detection system includes a protective assembly and an indicator assembly. The protective assembly is structured to be coupled to the sealed enclosure at the division interface. The indicator assembly includes a rupturable construct. The rupturable construct is structured to transform from an intact, first configuration to a ruptured, second configuration.

Abstract: A circuit breaker apparatus may include a housing, a circuit inside the housing for protecting the conductors and the load of the circuit, a display attached to outside of the housing, a controller, and a power control device. The display may be an electronically-alterable display that does not require power in situations other than changing its state. The power control device may provide power to the controller and the display when the apparatus is being tampered with. When the controller is powered, it may cause the power control device to cause the display to change from a state that indicates that the apparatus is authenticated to another state that indicates that the apparatus has been tampered with. The power control device may include a battery and a switch, or a power harvester, which can be configured to provide power to the controller when the apparatus is being tampered with.

Abstract: Methods of forming a contact for a semiconductor device with double barrier layer sets, and a device so formed are disclosed. Methods may include: depositing a first metal layer contacting a semiconductor substrate in a contact opening; depositing a first nitride barrier layer on the first metal layer; and annealing after depositing the first nitride barrier layer to form silicide region in a junction area underlying the contact opening with the first metal layer and the semiconductor substrate. After the annealing, a second metal layer may be deposited, followed by a second nitride barrier layer. A conductor is formed in a remaining portion of the contact opening. The double barrier layer sets prevent the formation of volcano defects and also advantageously reduce contact resistance.

Abstract: A circuit breaker assembly including a housing assembly and a tamper detection system. The housing assembly defines a sealed enclosure. The sealed enclosure includes a division interface. The sealed enclosure is structured to be in one of a closed, first configuration, wherein the sealed enclosure defines a generally enclosed space, and an open, second configuration, wherein the sealed enclosure allows access to the enclosed space, and wherein, as the sealed enclosure moves between the first configuration to the second configuration, the sealed enclosure is reconfigured at the division interface. The tamper detection system includes a protective assembly and an indicator assembly. The protective assembly is structured to be coupled to the sealed enclosure at the division interface. The indicator assembly includes a rupturable construct. The rupturable construct is structured to transform from an intact, first configuration to a ruptured, second configuration.

Abstract: A security tag and electronic system detect unauthorized tampering of Molded Case Circuit Breakers (MCCBs) and authenticate MCCBs against counterfeiting or gray market items. The system can involve digital generation of a public key and a corresponding private key, both keys comprise large positive integers, applying the private key to an MCCB-specific message string and creating a digital signature code, generating an identification code from the MCCB-specific message string and the digital signature code, building the identification code into one or more security tags, and installing the security tags on MCCBs, and authenticating MCCBs through a verification step and a certification step. The verification step reads the security tags, and verifies the identification code. The certification step checks the identification code against a revocation list that contains previously compromised identification codes.

Abstract: Systems, computer program products, and methods that can integrate resources at a disaster recovery site are provided. One method includes generating, on a primary site, a set of storage snapshots based on combining another set of storage snapshots and incremental changes to mirrored data on a backup site in which the storage snapshots include a second snapshot format utilized on the backup site. The method further includes converting the set of storage snapshots from the second snapshot format to a first snapshot format utilized on the primary site to generate a yet another set of storage snapshots and converting, on the backup site, a set of storage snapshots including the incremental changes and the second snapshot format to the first snapshot format to generate still another set of eighth storage snapshots. The storage snapshots on both sites represent the same data in the same snapshot format without bulk data transfer.

Abstract: A circuit breaker apparatus may include a housing, a circuit inside the housing for protecting the conductors and the load of the circuit, a display attached to outside of the housing, a controller, and a power control device. The display may be an electronically-alterable display that does not require power in situations other than changing its state. The power control device may provide power to the controller and the display when the apparatus is being tampered with. When the controller is powered, it may cause the power control device to cause the display to change from a state that indicates that the apparatus is authenticated to another state that indicates that the apparatus has been tampered with. The power control device may include a battery and a switch, or a power harvester, which can be configured to provide power to the controller when the apparatus is being tampered with.

Abstract: Video playback method and control terminal thereof are provided. The invention receives video data stream, determines if a to-be-decoded frame meets a discard condition according to the time stamp of the to-be-decoded frame, if the discard condition is met, discards the non-reference frame to be decoded in the video data stream, and if the discard condition is not met, decodes the to-be-decoded frame into to-be-output frame; determines if the to-be-output frame meets the discard condition according to the time stamp of the to-be-output frame; if the discard condition is met, discards the to-be-output frame; if the discard condition is not met, outputs the to-be-output frame as output frame, such that the time intervals of the time stamps of the sequentially output frames according to the display order are equal.

Abstract: A system for a three-phase electric power system includes a plurality of voltage sensors sensing three-phase voltages of the three-phase electric power system; a plurality of current sensors sensing three-phase currents of the three-phase electric power system; and a number of analog-to-digital converters converting the sensed three-phase voltages and the sensed three-phase currents of the three-phase electric power system to corresponding digital values.

Abstract: Multi-position valve and a multi-position valve skid. The multi-position valve comprises an upper valve body, a lower valve body, and a rotary valve core that includes a valve core body and a protruding part and has an oil-directing passageway through the protruding part and the valve core body. The lower valve body has oil inlet passageways through lower end and upper ends. The oil outlet of the oil inlet passageway is on a circle having a radius of the distance from the oil inlet of the oil-directing passageway to its axis, the center of the circle being the axis of the valve core body. When the valve core body rotates, the oil-directing passageway can abut any of the oil inlet passageways. The oil inlet passageways in the multi-position valve run to the lower end of the lower valve body, such that after being connected.

Abstract: A circuit interrupter includes an electronic trip unit structured to receive power from a power supply. The electronic trip unit includes a start-up process and is structured to proceed through the start-up process when the electronic trip unit begins receiving power from the power supply and a timing circuit including a capacitor structured to begin charging when the electronic trip unit begins receiving power from the power supply. The electronic trip unit includes a processor that is structured to read a voltage across the capacitor when the start-up process has completed and to determine an elapsed time of the start-up process based on the read voltage across the capacitor.

Abstract: An electronic trip unit for a circuit interrupter includes a line side voltage sensing module for measuring first voltages on a line side of separable contacts, a load side voltage sensing module for measuring second voltages on a load side of the separable contacts, a current sensor, and a main controller. The main controller is further structured and configured to: (i) for each of a plurality of arc interruption events in the circuit interrupter, determine a mass loss due to contact erosion during the arc interruption event based on one or more of the first voltages, the second voltages and the current measured by the current sensor, (ii) determine a total mass loss based on each determined mass loss due to contact erosion, and (iii) monitor a remaining life of the separable contacts based on the determined total mass loss due to contact erosion.