Abstract: A package structure comprises a metal plate (20) where a slot is formed, a ceramic piece (60), and a metal heat sink (70) welded onto the back surface of the ceramic piece (60). The ceramic piece (60) and the metal heat sink (70) are vertically inserted into the slot and welded to the metal plate (20). A semiconductor and a matching circuit may be disposed on the metal heat sink (70). The ceramic piece (60) replaces a glass seal; metalized interconnection is provided inside the ceramic piece (60) for fabricating a metalized pattern having complex connection relations, and the electrical interconnection is more flexible. In the package structure, metalized wiring is carried out by using the ceramic piece. Compared with round lead machining, higher precision is achieved.

Abstract: A control circuit having power limit for controlling an AC-DC voltage converter. The control circuit includes a first sensing circuit having an auxiliary winding used to sense a voltage on an inductive element of the converter to generate a first sensing signal, a second sensing circuit used to sense the current flowing through the inductive element to provide a second sensing signal, and a power limit circuit. The power limit circuit generates a power indication signal indicative of the input power of the converter based on the first sensing signal and the second sensing signal. When the power indication signal is larger than a power threshold, a controllable switch of the converter is turned off.

Abstract: Embodiments of the present invention relate to methods, systems, and computer program products for container image management. In a method, an image layer in a container image may be received by one or more processors, and the container image is to be stored in an image server comprising a group of image layers. A base portion may be selected by one or more processors from the group of image layers based on a similarity analysis between the image layer and the group of image layers. A patch portion may be generated by one or more processors based on a difference between the image layer and the selected base portion. With these embodiments, the container image may be stored based on multiple image layers, and thus the container image may be maintained in a much finer granularity so as to reduce requirements on the bandwidth and time cost for transmitting the container image.

Abstract: The disclosure provides a class of pH-sensitive, helix/random conformation switchable antimicrobial polypeptide (HRS-AMP) compositions as a single agent to selectively kill bacteria (e.g., H. pylori) under acidic condition in the stomach with diminished bacterial resistance compared to currently used antibiotics. Methods of treating bacterial infections in the stomach are also provided.

Abstract: A driving circuit for driving a synchronous rectifier device. The driving circuit may include a controllable clamping circuit having a first terminal coupled to a sensing terminal of the driving circuit, a second terminal coupled to a reference ground terminal of the driving circuit, a third terminal coupled to a driving terminal of the driving circuit, and a control terminal configured to receive a supply indication signal indicative of a voltage potential at a supply terminal of the driving circuit. The third terminal of the controllable clamping circuit may be connected to the second terminal of the controllable clamping circuit when the supply indication signal indicates that the voltage potential at the supply terminal has not been established to maintain the synchronous rectifier device off.

Abstract: Embodiments of the present invention relate to methods, systems, and computer program products for container image management. In a method, an image layer in a container image may be received by one or more processors, and the container image is to be stored in an image server comprising a group of image layers. A base portion may be selected by one or more processors from the group of image layers based on a similarity analysis between the image layer and the group of image layers. A patch portion may be generated by one or more processors based on a difference between the image layer and the selected base portion. With these embodiments, the container image may be stored based on multiple image layers, and thus the container image may be maintained in a much finer granularity so as to reduce requirements on the bandwidth and time cost for transmitting the container image.

Abstract: Embodiments of the present invention relate to methods, systems, and computer program products for application migration management. In a method, an application that is to be migrated may be determined by one or more processors in response to detecting an event in a node in a plurality of nodes, the application and application data of the application being located in the node. A group of candidate nodes to which the application is to be migrated may be determined from the plurality of nodes by one or more processors. The application data of the application may be relocated by one or more processors from the node to the group of candidate nodes. With these embodiments, the application data may be copied to the candidate nodes in advance, and the migrated application may be directly run, such that a time cost of the migration may be greatly reduced.

Abstract: An apparatus for detecting capacitance, an electronic device and an apparatus for detecting a force are disclosed. The apparatus for detecting capacitance includes: a signal driving circuit (110), configured to periodically charge and discharge at least one capacitor to be detected; a conversion circuit (120), configured to convert a capacitance signal of the at least one capacitor to be detected into a voltage signal; and a cancellation circuit (130), configured to cancel initial capacitance of the at least one capacitor to be detected, so that the voltage signal is associated with a capacitance change of the at least one capacitor to be detected. The apparatus for detecting capacitance could improve the anti-interference performance and improve the accuracy of capacitance detection.

Abstract: A driving circuit and driving method for driving a synchronous rectifier. When a drain-source detecting voltage between a drain terminal and a source terminal of the synchronous rectifier reaches a second reference voltage, the driving voltage applied at a gate terminal of the synchronous rectifier is decreased to regulate the drain-source detecting voltage to a first reference voltage. The first reference voltage is lower than the second reference voltage. And when the drain-source detecting voltage reaches an off reference voltage, the synchronous rectifier is turned off.

Abstract: Systems and methods for rechargeable batteries are provided. In an embodiment, a battery may include a cathode, an anode, an electrolyte solution, and a current collector. The anode may include a 3D porous structure. The 3D porous structure may have a higher electrical conductivity at one end than at the other end, and lithium ions may be dispersed throughout the 3D porous structure.

Abstract: A control circuit having power limit for controlling an AC-DC voltage converter. The control circuit includes a first sensing circuit having an auxiliary winding used to sense a voltage on an inductive element of the converter to generate a first sensing signal, a second sensing circuit used to sense the current flowing through the inductive element to provide a second sensing signal, and a power limit circuit. The power limit circuit generates a power indication signal indicative of the input power of the converter based on the first sensing signal and the second sensing signal. When the power indication signal is larger than a power threshold, a controllable switch of the converter is turned off.

Abstract: Embodiments of the present disclosure relate to IO initiator aware data migration. A set of statistical metrics for a replica of a data block on a first node of a plurality of nodes is obtained. The first set of statistical metrics is associated with read operations on the replica. The read operations are operations initiated by a second node of the plurality of nodes. If it is determined that a first statistical metric in the set of statistical metrics exceeds a predefined threshold, the replica is migrated from the first node to the second node.

Abstract: The present disclosure provides a detection circuit and an electronic device. The detection circuit includes a driving circuit, a cancelling circuit, and a switching circuit. Each driving module of the driving circuit is coupled to a detection capacitor for charging it; each cancelling module of the cancelling circuit is coupled to the detection capacitor to perform capacitance cancellation through two directions; each cancelling module of the cancelling circuit is coupled to the switching module to perform conversion of a capacitive signal and then output. The present disclosure can improve a detection accuracy of the capacitor.

Abstract: A pressure detection apparatus includes: a drive power supply, a differential circuit, a pressure calculation unit, and at least one pressure sensor. Each pressure sensor includes a first electrode plate, a second electrode plate, a third electrode plate, a first elastic dielectric layer, and a second elastic dielectric layer. One detection capacitor is formed between the first electrode plate and the second electrode plate, and one detection capacitor is formed between the first electrode plate and the third electrode plate. The pressure sensor is connected between the drive power supply and an input terminal of the differential circuit, and an output terminal of the differential circuit is connected to the pressure calculation unit.

Abstract: A driving circuit and driving method for driving a synchronous rectifier. When a drain-source detecting voltage between a drain terminal and a source terminal of the synchronous rectifier reaches a second reference voltage, the driving voltage applied at a gate terminal of the synchronous rectifier is decreased to regulate the drain-source detecting voltage to a first reference voltage. The first reference voltage is lower than the second reference voltage. And when the drain-source detecting voltage reaches an off reference voltage, the synchronous rectifier is turned off.

Abstract: Nonlinear control method for the micro-grid inverter with anti-disturbance. By generating reference currents that satisfy specific active and reactive power command under various working conditions, and introducing a nonlinear control method based on Lyapunov function to control the inverter, fast and accurate tracking of the generated reference signals is realized. The method realizes effective decoupling control of active power and reactive power. The system has high dynamic response and good robustness. Besides, the control structure of the method is simple and easy to implement, and the synchronous control link and the additional voltage and current regulator are omitted. The method realizes fast and accurate power exchange and stable power transmission between the inverter and the grid in the micro-grid under various working conditions, and provides a guarantee for improving the energy management efficiency within the micro-grid.

Abstract: A synchronous switching converter with an energy storage component and a synchronous rectifier coupled to the energy storage component, having: a secondary control circuit configured to receive a slew rate threshold adjusting signal and a voltage across the synchronous rectifier, and to provide a secondary control signal; wherein the secondary control circuit detects a slew rate of the voltage across the synchronous rectifier, and maintains the synchronous rectifier being off when the slew rate of the voltage across the synchronous rectifier is lower than a slew rate threshold.

Abstract: Nonlinear control method for the micro-grid inverter with anti-disturbance. By generating reference currents that satisfy specific active and reactive power command under various working conditions, and introducing a nonlinear control method based on Lyapunov function to control the inverter, fast and accurate tracking of the generated reference signals is realized. The method realizes effective decoupling control of active power and reactive power. The system has high dynamic response and good robustness. Besides, the control structure of the method is simple and easy to implement, and the synchronous control link and the additional voltage and current regulator are omitted. The method realizes fast and accurate power exchange and stable power transmission between the inverter and the grid in the micro-grid under various working conditions, and provides a guarantee for improving the energy management efficiency within the micro-grid.

Abstract: An approach, for fileset based data locality management in Distributed File Systems. A data locality manager receives fileset identifiers and associated block allocation information, for storing in data block locality tables. The data locality manager determines data block locality factors based on the fileset identifiers and the block allocation information, creating a collection of the data block locality factors. The data locality manager stores the collection of the data block locality factors in the data block locality tables. The data locality manager receives the fileset identifiers for determining the collection of the data block locality factors associated to the fileset identifiers and outputs the collection of the data block locality factors.