Abstract: A harmonic protection method for a capacitor bank uses a harmonic protection apparatus, which includes a CPU unit, a current and voltage sampling unit, and a protection device. The CPU unit obtains effective value I1 of fundamental wave current of the capacitor bank, and effective value In of the n-th harmonic wave current of the capacitor bank, where n is harmonic order and ranges from 2 to ?, and calculates the true effective value I of current of the capacitor bank by I = I 1 2 + ? n = 2 ? ? k n ? I n 2 provided that kn=rn/r1, kn is the n-th harmonic coefficient, rn is power consumption equivalent resistance of the capacitor bank for the n-th harmonic, r1 is power consumption equivalent resistance of the capacitor bank at a fundamental frequency. When I?1.3 IN, the CPU unit controls the protecting device to disconnect the capacitor bank, provided that IN is a threshold current of the capacitor bank.

Abstract: Method and apparatus for encryption, and a non-transitory computer-readable medium that stores instructions for performing encryption. The method includes loading a virtual system driver module in a host operating system and constructing a virtual operating system, wherein the virtual operating system comprises a micro-kernel; preparing and providing context of a processor and a memory page table by the virtual system driver for the micro-kernel, and mapping, in the memory page table, original data and a physical address of a buffer area that receives data after encryption computation is completed; and completing the encryption computation in the virtual operating system and saving the computation result in the buffer area.

Abstract: A control method of a converter system includes: sampling a current of each three-phase winding to obtain a real-time current of each converter; obtaining a mean current by averaging the real-time current of each secondary converter and the real-time current of the primary converter, and transferring the mean current to each secondary converter; obtaining the differential-mode current corresponding to each secondary converter according to the mean current and the real-time current of each secondary converter; performing a circulation current control on the mean current and the differential-mode current of each secondary converter based on a d-q coordinate system to generate a mean-current conditioning signal and a differential-mode current conditioning signal, thereby controlling each secondary converter; and obtaining a sum of the differential-mode current conditioning signal of the secondary converters and negating the sum to obtain a differential-mode current conditioning signal of the primary converter, t

Abstract: Methods for facilitating provision of a service or good are described. The method includes receiving the user's preferences, generating a list of merchants based on the preferences, receiving the user's selection of a merchant, placing the user on a waiting list, transmitting a notification to the user, and stopping further notifications.

Abstract: Exemplary embodiments are disclosed herein of temperature measuring devices. In an exemplary embodiment, a temperature measuring device includes a temperature sensing means, at least two reference voltage sources, and a reference voltage selection means for selecting one reference voltage source from the at least two reference voltage sources to generate a reference voltage output. The temperature measuring device also includes an A/D converter for converting an analog signal output by the temperature sensing means to a digital signal based on the reference voltage output. The temperature measuring device further includes a temperature calculation means for calculating a temperature to be measured based on the digital signal output by the A/D converter.

Abstract: A harmonic protection method for a capacitor bank uses a harmonic protection apparatus, which includes a CPU unit, a current and voltage sampling unit, and a protection device. The CPU unit obtains effective value I1 of fundamental wave current of the capacitor bank, and effective value In of the n-th harmonic wave current of the capacitor bank, where n is harmonic order and ranges from 2 to ?, and calculates the true effective value I of current of the capacitor bank by I = I 1 2 + ? n = 2 ? ? k n ? I n 2 provided that kn=rn/r1, kn is the n-th harmonic coefficient , rn is power consumption equivalent resistance of the capacitor bank for the n-th harmonic, r1 is power consumption equivalent resistance of the capacitor bank at a fundamental frequency. When I?1.3 IN, the CPU unit controls the protecting device to disconnect the capacitor bank, provided that IN is a threshold current of the capacitor bank.

Abstract: A device and a method for detecting a crowbar circuit in a wind turbine are provided, wherein the wind turbine comprises a converter electrically connected to the crowbar circuit, and the method comprises: electrically coupling a detection module to the crowbar circuit; inputting a first control signal into the crowbar circuit, to turn on the crowbar circuit; providing a three-phase voltage signal to the crowbar circuit via the converter, wherein voltage signals in any two adjacent phases has a predetermined phase angle difference; reading the first detection signal outputted by the detection module, to determine whether the crowbar circuit is normally thrown into the wind turbine; inputting a second control signal to the crowbar circuit, to turn off the crowbar circuit; and reading again the second detection signal outputted by the detection module, to determine whether the crowbar circuit is normally cut out from the wind turbine.

Abstract: A heat dissipation assembly for dissipating heat from a first heat source and a second heat source includes a heat sink, a fan, a supporting member, and a deflecting panel. The heat sink includes a base and a plurality of heat dissipation fins disposed on the base. The base is in contact with the first heat source for thermally conducting the heat generated by the first heat source. The fan and the supporting member are attached at opposite sides of the heat dissipation fins. The supporting member is a pivotable rod. The deflecting plate is attached to the pivotable rod and is pivotable relative to the heat dissipation fins. The deflecting plate is capable of deflecting airflow from the fan towards the second heat source to dissipate heat generated by the second heat source.

Abstract: A heat dissipation apparatus includes a heat sink configured to contact a heat source, and a fan mounted on the heat sink configured to generate airflow through the heat dissipation apparatus. The fan includes a plurality of fan blades, and a motor configured for rotating the fan. The motor is located a distance from the fan blades.

Abstract: A heat dissipation apparatus for dissipating heat from two heat sources includes a heat sink, and a fan mounted on the heat sink. The heat sink includes a base and a plurality of parallel fins positioned on the base, the base contacts with one of the two heat sources for thermally conducting the heat generated by the one of the two heat sources. The fan is configured to generate airflow through the fins in such a manner that airflow flows from a second side of the fins to a first side of the fins. A deflecting member is mounted on the first side of the fins for deflecting airflow from the fan towards the second of the two heat sources.

Abstract: A heat dissipating assembly includes a heat generating component, a heat sink, and a fan. The heat sink includes a base attached on the heat generating component and a plurality of fins attached on the base. The fan is attached to a top surface of the fins. The top surface of the fins is wider than the base. The fins incline inwardly from the top surface to the base for gathering cooling air from the fan to the base.

Abstract: Disclosed are compositions and methods for their use, such as in identifying G-protein-coupled receptors, ligands and compounds that modulate the activities of G-protein-coupled receptors. The compositions and methods employ cyclic nucleotide-gated channels and fluorescence dyes in detecting changes of intracellular cAMP levels in response to the stimulation of G-protein-coupled receptors. Activation of the G-protein-coupled receptors can be detected in a variety of assays, including cell-based imaging assays with fluorescence microscopes and high throughput assays with multi-well plates and fluorescence plate readers.

Abstract: A heat dissipation fan includes a first magnetic pole, and a second magnetic pole positioned in the first magnetic pole. A plurality of coils is positioned on the first magnetic pole. A plurality of fan blades is positioned on an inner surface of the second magnetic pole. When the current is applied, the magnetic field between the first and second magnetic poles generates a force on the first magnetic pole through the plurality of coils thereon. The first magnetic pole generates a counterforce on the second magnetic pole to rotate the plurality of fan blades.

Abstract: A heat dissipation assembly for dissipating heat from a first heat source and a second heat source includes a heat sink, a fan, a supporting member, and a deflecting panel. The heat sink includes a base and a plurality of heat dissipation fins disposed on the base. The base contacts with the first heat source for thermally conducting the heat generated by the first heat source. The fan and the supporting member are attached at opposite sides of the heat dissipation fins. The supporting member a pivotable rod. The deflecting plate is attached to the pivotable rod and pivotable relative to the heat dissipation fins. The deflecting plate is capable of deflecting airflow from the fan towards the second heat source and dissipating the heat generated by the second heat source.

Abstract: A heat dissipation apparatus for dissipating heat from two heat sources includes a heat sink, and a fan mounted on the heat sink. The heat sink includes a base and a plurality of parallel fins positioned on the base, the base contacts with one of the two heat sources for thermally conducting the heat generated by the one of the two heat sources. A slantwise slot is formed in the fins, an edge of the slot bent to form a slantwise deflecting portion. The fan is configured to generate airflow through the fins in such a manner that some of the airflow is deflected by the deflecting portion towards the second of the two heat sources.

Abstract: A computer enclosure includes a chassis with a plurality of heat generating components installed therein and an airflow guide structure. The airflow guide structure includes a fan and a duct attached to the fan. A pair of airflow outlets aligned with the fan is defined in the duct. The duct includes a plurality of pivot panels pivotally attached at airflow outlets. The pivot panels are configured to guide airflow from the fan to different positions of heat generating components in the chassis.

Abstract: A heat sink assembly includes a fan and two sets of fin modules. The fan generates airflow along a first direction. The two sets of fin modules are fixed on opposite sides of the fan. Each set of fin module has a plurality of parallel fins. The fins extend parallel to the first direction.

Abstract: A heat dissipating assembly includes a heat generating component, a heat sink, and a fan. The heat sink includes a base attached on the heat generating component and a plurality of fins attached on the base. The fan is attached to a top surface of the fins. The top surface of the fins is wider than the base. The fins incline inwardly from the top surface to the base for gathering cooling air from the fan to the base.

Abstract: An electronic apparatus includes an enclosure (30), a circuit board (40), a fan module (20), and an air guiding element (10) mounted in the enclosure. The circuit board includes at least one heat generating component (41) thereon. The fan module has a fan (22) and an output opening (213) corresponding to the fan. The air guiding element comprises a resisting panel (11) and a guiding panel (12) comprises a free end that extends toward the output opening of the fan module. The at least one heat generating component and the output opening are on the same side of the resisting panel. The guiding panel defines a free end (127) and a connecting end (125) connecting the resisting panel. A plane defined by the ends of the guiding panel is aligned at an angle larger than 90 degrees relative to the resisting panel.

Abstract: A heat dissipation apparatus for dissipating heat from two heat sources includes a heat sink, and a fan mounted on the heat sink. The heat sink includes a base and a plurality of parallel fins positioned on the base, the base contacts with one of the two heat sources for thermally conducting the heat generated by the one of the two heat sources. The fan is configured to generate airflow through the fins in such a manner that airflow flows from a second side of the fins to a first side of the fins. A deflecting member is mounted on the first side of the fins for deflecting airflow from the fan towards the second of the two heat sources.