Abstract: A refrigeration apparatus includes a fan and a motor for driving the fan. The motor is a single phase synchronous alternating current motor. In comparison with the traditional motor, the single phase synchronous alternating current motor has a reduced size and reduced cost, while ensuring the stable performance.

Abstract: A request for analysis of a data integration job is received that includes one or more features and criteria for the analysis. Each feature is extracted from a job model representing the job by invoking a corresponding analytical rule for each feature. The analytical rule includes one or more operations and invoking the analytical rule performs the operations to analyze one or more job components associated with the corresponding feature as represented in the job model and to extract information pertaining to that feature.

Abstract: A single-phase motor, an airflow generating apparatus, and an electric apparatus are provided. The motor includes a stator and a rotor. The stator includes a stator core and stator windings. The stator core includes a ring-shaped yoke and multiple pole portions. A magnetic bridge or slot opening is formed between each two adjacent pole portions. An end surface of each pole portion includes an arc surface. A positioning groove is formed in each arc surface. The arc surfaces of the pole portions cooperatively form a receiving cavity. The rotor includes a rotary shaft and a permanent magnet fixed to the rotary shaft. The permanent magnet is received in the receiving cavity. The arc surfaces are located on a cylindrical surface centered around a rotation axis of the rotary shaft. The cogging torque of the motor can be reduced, thus reducing the startup current and hence the noise of the motor.

Abstract: A single phase brushless motor and an electric apparatus are provided. The motor includes a stator and a rotor. The stator includes a stator core and windings. The stator core includes a yoke and at least two teeth. The tooth includes a tooth body and a tooth tip. The tooth tip includes first and second pole shoes. The rotor is received in a space defined between the first pole shoes and the second pole shoes. Each tooth forms a positioning groove facing the rotor between the first pole shoe and the second pole shoe. The first and second pole shoes are symmetrical about a central line of the tooth body and the positioning groove deviates toward the first pole shoe, such that the rotor startup capability in one direction is greater than the rotor startup capability in an opposite direction. The single phase motor has a larger startup torque with enhanced startup capability.

Abstract: A single phase brushless motor and a power tool and a car window lifer employing the motor are provided. The motor includes a stator and a rotor. The stator includes a stator core and windings. The stator core includes a yoke and teeth extending inward from the yoke. The tooth includes a tooth tip. The tooth tip includes a first pole shoe and a second pole shoe. The tooth tip forms a positioning groove facing the rotor between the first and second pole shoes. The rotor is received in a space defined between the first and second pole shoes. The rotor comprises multiple permanent magnetic poles arranged in a circumferential direction of the rotor. The first and second pole shoes are symmetrical about a central line of the tooth body, such that the rotor startup capability in one direction is greater than the rotor startup capability in an opposite direction.

Abstract: The method of managing performance of data integration are described. A performance analyzer may receive data about a data integration job execution. The performance analyzer may determine whether there is a performance issue of the data integration job execution. The performance analyzer analyzes the data about the data integration job execution when there is a performance issue. The performance analyzer generates a job execution design recommendation based on the analysis of the data and a set of predefined recommendation rules. The performance analyzer then displays the data about the data integration job execution and when there is a generated job execution design recommendation, displaying the job execution design recommendation.

Abstract: A subsystem configured to select the power supply to a static random access memory cell compares the level of a dedicated memory supply voltage to the primary system supply voltage. The subsystem then switches the primary system supply to the SRAM cell when the system voltage is higher than the memory supply voltage with some margin. When the system voltage is lower than the memory supply voltage, with margin, the subsystem switches the memory supply to the SRAM cell. When the system voltage is comparable to the memory supply, the subsystem switches the system voltage to the SRAM cell if performance is a prioritized consideration, but switches the memory supply to the SRAM cell if power reduction is a prioritized consideration. In this manner, the system achieves optimum performance without incurring steady state power losses and avoids timing issues in accessing memory.

Abstract: In various embodiments, a memory cell and a memory are provided. The memory cell comprises a Static Random Access Memory (SRAM) cell including a reset-set (RS) flip-flop and a Read Only Memory (ROM) cell being connected (or coupled) to the SRAM cell to set logic states of internal latch nodes of the RS flip-flop when the ROM cell is triggered. The size of the memory cells proposed in an embodiment of the invention is much smaller than the sum of the size of ROM cells and the size of SRAM cells with the capacity of the memory cells same as the sum of the capacity of the ROM cells and the capacity of the SRAM cells.

Abstract: A single-phase outer-rotor motor includes a stator and a rotor surrounding the stator. The stator includes a stator core and windings wound around the stator core. The stator core includes a yoke and a plurality of teeth. Each of the teeth forms a tooth tip at a distal end thereof. A slot opening is formed between each two adjacent tooth tips. The rotor includes a housing and a permanent magnet affixed to an inside of the housing. The permanent magnet forms a closed ring in a circumferential direction. The permanent magnet forms a plurality of magnetic poles along the circumferential direction. An outer surface of the stator and an inner surface of the permanent magnet define there between a symmetrical uneven gap. A width of the slot opening in the circumferential direction is less than or equal to five times of a minimum width of the gap.

Abstract: A driving apparatus for a washing machine includes a single-phase outer rotor brushless motor and a driving wheel. The motor drives the driving wheel and includes a stator and a rotor. The stator includes a stator core and windings wound around the stator core. The rotor includes a rotor yoke, and a permanent magnet. An inner surface of the permanent magnet and an outer surface of a tooth tip are opposed to each other and define an uneven gap there between for allowing the rotor to rotate relative to the stator. A radial width of the gap associated with each magnetic pole progressively increases from a center portion toward circumferential ends of the magnetic pole, and a radial width of the gap associated with each magnetic pole is symmetrical with respect to a center axis of the magnetic pole along the circumferential direction.

Abstract: A single-phase outer-rotor motor and a stator thereof are provided. The stator includes a stator core having a yoke and a number of teeth. Each tooth includes a tooth body and a toot tip. A winding slot is formed between each two adjacent tooth bodies. A slot opening is formed between each two adjacent tooth tips. The tooth tip protrudes beyond the tooth body. Inner surfaces of at least part of the tooth tips facing the stator are formed with cutting grooves such that a portion of the tooth tip outside the cutting groove is capable of being tilted outwardly to enlarge the slot opening and deformed inwardly to narrow the slot opening.

Abstract: A single-phase outer-rotor motor includes a stator and a rotor surrounding the stator. The stator includes a stator core and windings wound around the stator core. The stator core includes a yoke and a plurality of teeth extending integrally, radially outwardly from an outer edge of the yoke. Each of the teeth includes a tooth body connected with the yoke and a tooth tip formed at a distal end of the tooth body. A winding slot is formed between each two adjacent tooth bodies. The windings are wound around the tooth bodies. The tooth tips are connected in the circumferential direction to form a closed ring, and outer wall surfaces of the tooth tips collectively form a circumferentially closed cylindrical surface.

Abstract: A single-phase outer-rotor motor includes a stator and a rotor surrounding the stator. The stator and rotor define therebetween an even gap. The stator includes a stator core. The stator core includes a yoke and a plurality of teeth. Each tooth includes a tooth body and a tooth tip. A winding slot formed between each two adjacent tooth bodys. Windings are wound around the tooth bodys. The tooth tip forms an outer circumferential surface facing the rotor. The outer circumferential surfaces of all the tooth tips are connected to each other to collectively form a substantial cylindrical surface. The outer circumferential surface of the tooth tip is formed with a positioning groove deviating from a center of the outer circumferential surface of the tooth tip, which prevents the rotor from stopping at the dead-point position and hence ensures that the rotor can be successfully started when the motor is energized.

Abstract: A single-phase outer-rotor motor includes a stator and a rotor. The stator includes a stator core with windings wound thereon. The stator core includes a yoke and multiple teeth each including a tooth body and a tooth tip. The rotor includes a rotor yoke and a permanent magnet forming a plurality of magnetic poles facing the tooth tips of the stator core. The magnetic poles and the tooth tips define a gap there between. When the motor is de-energized, the rotor is capable of being positioned at an initial position by a leakage magnetic field generated by the permanent magnet acting with the tooth tips of the stator core.

Abstract: A single-phase outer-rotor motor includes a stator and a rotor surrounding the stator. The stator includes a stator core and windings wound around the stator core. The stator core includes a yoke and a plurality of teeth. Each tooth forms a tooth tip at a distal end thereof. A slot opening is formed between each two adjacent tooth tips. The rotor includes a housing and a plurality of permanent magnets affixed to the housing. The permanent magnet is an asymmetrical structure. A radial distance between an inner surface of the permanent magnet and an outer surface of the tooth tip varies along the circumferential direction. The stator and the rotor define an asymmetrical uneven gap there between, and a width of the slot opening in the circumferential direction is less than or equal to five times of a minimum width of the gap.

Abstract: A single-phase outer-rotor motor includes a stator and a rotor surrounding the stator. The rotor includes a housing and a plurality of permanent magnets affixed to an inside of the housing. The permanent magnets are arranged spacedly along a circumferential direction. The stator includes a stator core and windings wound around the stator core. The stator core includes a yoke and a plurality of teeth extending radially outwardly from an outer edge of the yoke. Each of the teeth forms a tooth tip at a distal end thereof. The tooth tip has an outer surface facing the rotor. The permanent magnet is magnetized along the circumferential direction. Two adjacent permanent magnets have opposite magnetization directions. Adjacent surfaces of two adjacent permanent magnets have the same polarity. A magnetic member is disposed between each two adjacent permanent magnets.

Abstract: A parallel data processing method based on multiple graphic processing units (GPUs) is provided, including: creating, in a central processing unit (CPU), a plurality of worker threads for controlling a plurality of worker groups respectively, the worker groups including one or more GPUs; binding each worker thread to a corresponding GPU; loading a plurality of batches of training data from a nonvolatile memory to GPU video memories in the plurality of worker groups; and controlling the plurality of GPUs to perform data processing in parallel through the worker threads. The method can enhance efficiency of multi-GPU parallel data processing. In addition, a parallel data processing apparatus is further provided.

Abstract: The present disclosure provides N-type fin field-effect transistors and fabrication methods thereof. A method for fabricating an N-type fin field-effect transistor includes providing a semiconductor substrate; forming at least one fin having a first side surface and a second side surface over the semiconductor substrate; forming a gate structure crossing over the fin over the semiconductor substrate; performing an ion implantation process on one of the first side surface and the second side surface of the fin at two sides of the gate structure; performing a thermal annealing process to cause doping ions to diffuse to the other one of the first side surface and the second side surface of the fin; and forming a source region and a drain region on the fin at the two sides of the gate structure, respectively.

Abstract: A parallel data processing method based on multiple graphic processing units (GPUs) is provided, including: creating, in a central processing unit (CPU), a plurality of worker threads for controlling a plurality of worker groups respectively, the worker groups including a plurality of GPUs; binding each worker thread to a corresponding GPU; loading one batch of training data from a nonvolatile memory to a GPU video memory corresponding to one worker group; transmitting, between a plurality of GPUs corresponding to one worker group, data required by data processing performed by the GPUs through peer to peer; and controlling the plurality of GPUs to perform data processing in parallel through the worker threads.

Abstract: A subsystem configured to select the power supply to a static random access memory cell compares the level of a dedicated memory supply voltage to the primary system supply voltage. The subsystem then switches the primary system supply to the SRAM cell when the system voltage is higher than the memory supply voltage with some margin. When the system voltage is lower than the memory supply voltage, with margin, the subsystem switches the memory supply to the SRAM cell. When the system voltage is comparable to the memory supply, the subsystem switches the system voltage to the SRAM cell if performance is a prioritized consideration, but switches the memory supply to the SRAM cell if power reduction is a prioritized consideration. In this manner, the system achieves optimum performance without incurring steady state power losses and avoids timing issues in accessing memory.