Abstract: A cleaning system may include a vacuum cleaner and a docking station. The vacuum cleaner may include an air inlet, a suction motor having a suction motor inlet and a suction motor outlet, and a cleaner dust cup configured to transition between a collection position and an emptying position, the cleaner dust cup being upstream of the suction motor inlet when in the collection position and downstream of the suction motor outlet when in the emptying position. The docking station may include a base, a support extending from the base, a station dust cup removably coupled to the support, and a receptacle coupled to the support and configured to receive at least a portion of the vacuum cleaner, the cleaner dust cup being fluidly coupled to and upstream of the station dust cup when the vacuum cleaner is inserted in the receptacle.

Abstract: A semiconductor device incudes a substrate, a controller die on a top surface of the substrate, and a thermal spreader and outgas channel pad on a bottom surface of the substrate. The thermal spreader and outgas channel pad may be broken into a number of blocks separated by outgassing channels. The semiconductor device may be mounted on a printed circuit board using a solder shim. Materials outgassed from the solder shim when attaching the semiconductor device may escape through the outgassing channels.

Abstract: The invention discloses a carbon fiber composite artificial bone and a preparation method thereof. The artificial bone includes a carbon fiber composite spring-like frame or includes a carbon fiber composite spring-like frame and a carbon fiber composite plate dowel, and the carbon fiber composite plate dowel is inserted into one end or both ends of a cavity of the spring-like frame or penetrates through the cavity of the carbon fiber composite spring-like frame. The preparation method includes: preparing a spring-like carbon fiber preform through a weaving technology by using carbon fibers as a raw material, performing densification and high-temperature purification treatment and preparing a wear-resistant coating to obtain the carbon fiber composite spring-like frame; and combining the carbon fiber composite spring-like frame with the carbon fiber composite plate bowel to obtain the artificial bone.

Abstract: Disclosed are a molecular detection system and a detection method thereof. The molecular detection system includes a main control device and a plurality of molecular detection devices. The main control device communicates with each of the plurality of molecular detection devices. The main control device is configured to control each of the plurality of molecular detection devices to perform detection. The main control device includes a display module configured to display detection data of each of the plurality of molecular detection devices. The molecular detection devices may perform different types of detections on different types of samples, which greatly expands the application flexibility and the application scenarios while meeting the detection throughput.

Abstract: Disclosed are a dual-motor multi-gear hybrid transmission system and a vehicle. The dual-motor multi-gear hybrid transmission system includes an engine, a first motor, a second motor, a first clutch, a second clutch, a first planet row, a second planet row, a first input shaft, a second input shaft, a third input shaft and a brake assembly. The first input shaft is connected to the engine through the first clutch. The second input shaft is connected to the engine through the second clutch, and the second input shaft is sleeved outside the first input shaft. The first motor is connected to the engine. The second motor is connected to the first planet row through the third input shaft. The brake assembly is configured to brake the first planet row and/or the second planet row.

Abstract: This provides an improved process for making a flexible, porous, dissolvable solid sheet article with improved pore structures.

Abstract: The present disclosure relates to an AC/DC closed-loop current sensor, including a magnetism gathering iron core, a TMR chip, a signal processing circuit, a signal generator, and a feedback coil. The TMR chip is arranged at an air gap of the magnetism gathering iron core and connected to the signal processing circuit. The signal processing circuit is connected to the signal generator. The feedback coil is wound around the magnetism gathering iron core and connected to the signal generator. The signal processing circuit is configured to select from the induced signal of the TMR chip and make an amplification to obtain a current signal component and send the current signal component to the signal generator. The signal generator is configured to adjust a current output to the feedback coil based on the current signal component, and output a measurement result of the selected current signal component.

Abstract: Disclosed are a high-boron high-vanadium high-speed steel and a method for preparing the same. Pig iron, scrap steel, ferrochromium, ferromanganese, ferroboron, ferrovanadium, industrial pure iron, ferromolybdenum, ferrotungsten, ferrosilicon and ferrotitanium are subjected to smelting at 1580-1600° C. and refining to obtain a liquid steel. The liquid steel is subjected to superheating, and directional solidification at a casting temperature of 1420-1430° C., and cooled to room temperature to obtain the directionally solidified high-speed steel.

Abstract: Implementations of the subject matter described herein provide a solution for speech synthesis and speech recognition. In this solution, a Text to Speech (TTS) model and an Automatic Speech Recognition (ASR) model supporting at least one language are obtained. The TTS model and the ASR model are adjusted, based on a first set of paired data in a target language, to support the target language. The TTS model is optimized based on the first set of paired data and a first set of synthesized paired data in the target language generated by the ASR model while the ASR model is optimized based on the first set of paired data and a second set of synthesized paired data in the target language generated by the TTS model. As such, the solution can provide TTS and ASR models with high accuracy for languages lacking training data by using less training data.

Abstract: Disclosed are a high-boron high-vanadium high-speed steel and a method for preparing the same. Pig iron, scrap steel, ferrochromium, ferromanganese, ferroboron, ferrovanadium, industrial pure iron, ferromolybdenum, ferrotungsten, ferrosilicon and ferrotitanium are subjected to smelting at 1580-1600° C. and refining to obtain a liquid steel. The liquid steel is subjected to superheating, and directional solidification at a casting temperature of 1420-1430° C., and cooled to room temperature to obtain the directionally solidified high-speed steel.

Abstract: A pointing device includes an enclosure, a touch panel, and a securing panel. The enclosure includes an enclosure body, a first resisting portion and a second resisting portion extending from the enclosure body, and an elastic element mounted to the enclosure body. The touch panel is placed between the first resisting portion and the second resisting portion. The securing panel includes a panel body and a first resisting tab and a second resisting tab extending from the panel body. The first resisting tab is received in the first resisting portion, and the second resisting tab is received in the second resisting portion, thereby enabling the touch panel to be secured between the panel body and the enclosure body.

Abstract: A keyboard assembly includes a keyboard, two latching structures, and a data cable. The keyboard includes a bottom plate. Each latching structure is located on the bottom plate and includes a positioning post and a latching strip. The positioning post is located on the bottom plate, and the latching strip extends from the positioning post. The data cable is wrapped around the positioning posts to prevent the data cable from extending too long out of the keyboard.

Abstract: A pointing device includes an enclosure, a touch panel, and a securing panel. The enclosure includes an enclosure body, a first resisting portion and a second resisting portion extending from the enclosure body, and an elastic element mounted to the enclosure body. The touch panel is placed between the first resisting portion and the second resisting portion. The securing panel includes a panel body and a first resisting tab and a second resisting tab extending from the panel body. The first resisting tab is received in the first resisting portion, and the second resisting tab is received in the second resisting portion, thereby enabling the touch panel to be secured between the panel body and the enclosure body.

Abstract: In summary, the spread spectrum direct sequence communication system of the present invention has a plurality of transmitters for uni-directionally simultaneously transmitting, through a transmission medium to a single receiver, a plurality of data streams. Each transmitter transmits a single data stream. Each data stream comprises a plurality of direct sequence data packets. Each transmitter has a data collector, a data formatter, a transmission device, a transmission interface, and a power supply.