Abstract: An ultrasonic cleaning tool for cleaning a surface has a transducer and a horn for generating and transmitting vibrations to a surface to be cleaned. Cleaning solution can be supplied to the ultrasonic cleaning tool or the surface to be cleaned, and operation of the ultrasonic cleaning tool can agitate the surface and cleaning solution. The tool can be provided as part of a system for cleaning a surface, and the system can include an extraction cleaner or a cleaning cloth.

Abstract: Disclosed are a syringe and a needle hub having a protective cover. The needle hub having a protective cover includes a needle hub body and a protective cover that are integrally formed by means of injection molding. The needle hub body is used for inserting and fixing a needle tube. The protective cover is used for flipping at an angle at which the opening faces the needle hub body and the needle tube, and covering the needle hub body and the needle tube. The root of the protective cover is locked to the peripheral side of the needle hub body when the protective cover is flipped and covers the needle hub body.

Abstract: A polymorph of a reduced ?-nicotinamide mononucleotide disodium salt, and a preparation method therefor and the use thereof as a pharmaceutical ingredient, a healthcare product ingredient, a cosmetic ingredient, or a food additives, and a preparation containing the salts are provided. A polymorph of NMNH disodium salt has excellent solubility, stability, flow performance, and hygroscopicity resistance. Its purification effects is better than that of amorphous forms.

Abstract: A polymorph of a reduced ?-nicotinamide mononucleotide disodium salt, and a preparation method therefor and the use thereof as a pharmaceutical ingredient, a healthcare product ingredient, a cosmetic ingredient, or a food additives, and a preparation containing the salts are provided. A polymorph of NMNH disodium salt has excellent solubility, stability, flow performance, and hygroscopicity resistance. Its purification effects is better than that of amorphous forms.

Abstract: Aspects of the present disclosure provide techniques and apparatus for synchronizing phase-locked loop (PLL) circuits. An example method of operating PLL circuits includes obtaining an indication to perform a synchronizing action at a first PLL circuit and a second PLL circuit; and performing the synchronizing action at the first PLL circuit and the second PLL circuit in response to obtaining the indication.

Abstract: A compound NMNH calcium salt, in particular a polymorph of a reduced ?-nicotinamide mononucleotide calcium salt and a preparation method therefor, a use thereof as a pharmaceutical ingredient, a health care product ingredient and a cosmetic ingredient or as a food additive, and a formulation containing same, belonging to the field of medicines, health care products, cosmetics and food additives. For the NMNH calcium salt polymorph, the crystal thereof displays long-term continuous stability, and compared with NMNH disodium salt, has significantly superior stability performance and anti-hygroscopic properties, and is more beneficial to long-term storage, promotion and market application. The NMNH calcium salt crystal is simple in preparation process, easy to control and suitable for large-scale production.

Abstract: The invention relates to a compound NMNH calcium salt, in particular to an amorphous form of a reduced ?-nicotinamide mononucleotide calcium salt, a preparation method therefor, a use thereof as a pharmaceutical ingredient, a health care product ingredient and a cosmetic ingredient or as a food additive, and a formulation containing the salt, belonging to the field of medicines, health care products, cosmetics and food additives. Specifically, described in the invention is a NMNH calcium salt amorphous compound. The compound shows long-term continuous stability, and compared with NMNH disodium salt, has significantly superior oxidation resistance and stability, and anti-hygroscopic properties, and is more beneficial to long-term 10 storage, promotion and market application. The NMNH calcium salt amorphous compound is simple in preparation process, easy to control and suitable for large-scale production.

Abstract: A lock device of a vehicle comprising: a base plate; a guide plate rotatably disposed on the base plate; a pawl rotatably disposed on the base plate, the pawl being engageable with the guide plate in an unlocking position and disengageable from the guide plate between a half-locked and fully-locked position; a ratchet rotatably disposed on the base plate for retaining a striker when in the half-locked or the fully-locked position when the pawl is engaged with the ratchet; and a release member rotatably disposed on the base plate, the release member engageable with the guide plate; the release member is configured to drive the guide plate to engage with the pawl and drive the pawl to decouple from the ratchet.

Abstract: A polymorph of a reduced ?-nicotinamide mononucleotide disodium salt, and a preparation method therefor and the use thereof as a pharmaceutical ingredient, a healthcare product ingredient, a cosmetic ingredient, or a food additives, and a preparation containing the salts are provided. A polymorph of NMNH disodium salt has excellent solubility, stability, flow performance, and hygroscopicity resistance. Its purification effects is better than that of amorphous forms.

Abstract: A method for constructing episodic memory model based on rat brain visual pathway and entorhinal-hippocampal structure mainly applied to environment cognition and navigation of an intelligent mobile robot to complete tasks of environment cognition map construction and target-oriented navigation is provided. The image information of the environment, the head-direction angle and speed of the robot are collected, and then the head-direction angle and speed of the robot are input into the entorhinal-hippocampal CA3 neural computational model to obtain the robot's precise position. The visual information is input into the computational model of the visual pathway to obtain the scene information in the current vision of the robot. The above two kinds of information are fused and stored in a cognitive node with the topological relationship.

Abstract: A lock device of a vehicle comprising: a base plate; a guide plate rotatably disposed on the base plate; a pawl rotatably disposed on the base plate, the pawl being engageable with the guide plate in an unlocking position and disengageable from the guide plate between a half-locked and fully-locked position; a ratchet rotatably disposed on the base plate for retaining a striker when in the half-locked or the fully-locked position when the pawl is engaged with the ratchet; and a release member rotatably disposed on the base plate, the release member engagable with the guide plate; the release member is configured to drive the guide plate to engage with the pawl and drive the pawl to decouple from the ratchet.

Abstract: Disclosed are a syringe and a needle hub having a protective cover. The needle hub having a protective cover includes a needle hub body and a protective cover that are integrally formed by means of injection molding. The needle hub body is used for inserting and fixing a needle tube. The protective cover is used for flipping at an angle at which the opening faces the needle hub body and the needle tube, and covering the needle hub body and the needle tube. The root of the protective cover is locked to the peripheral side of the needle hub body when the protective cover is flipped and covers the needle hub body.

Abstract: The present disclosure provides a photonics-aided vector terahertz signal communication system. The system includes an optical frequency comb generation module, a vector terahertz signal generation module, an optical fiber transmission module, a vector terahertz signal detection module, and a vector terahertz signal emission module that are sequentially connected, where the vector terahertz signal generation module includes a first binary sequence generator, a first electronic amplifier, and a first intensity modulator that are sequentially connected, the first binary sequence generator generates binary data representing to-be-transmitted data, the first intensity modulator performs, based on the binary data, amplitude modulation on an optical frequency comb entering the first intensity modulator, and an optical signal obtained after the modulation of the first intensity modulator is a vector terahertz signal carrying the to-be-transmitted data.

Abstract: A method for constructing episodic memory model based on rat brain visual pathway and entorhinal-hippocampal structure mainly applied to environment cognition and navigation of an intelligent mobile robot to complete tasks of environment cognition map construction and target-oriented navigation is provided. The image information of the environment, the head-direction angle and speed of the robot are collected, and then the head-direction angle and speed of the robot are input into the entorhinal-hippocampal CA3 neural computational model to obtain the robot's precise position. The visual information is input into the computational model of the visual pathway to obtain the scene information in the current vision of the robot. The above two kinds of information are fused and stored in a cognitive node with the topological relationship.

Abstract: A system for generating and receiving a polarization multiplexed single sideband signal is provided, which includes a light wave generating unit connected with a signal modulating unit and configured to generate a light wave; a driving signal generating unit connected with the signal modulating unit and configured to generate a driving signal; the signal modulating unit configured to split the light wave into two orthogonal polarized light waves, and modulate the driving signal on the polarized light waves to obtain a polarization multiplexed upper sideband optical signal and a polarization multiplexed lower sideband optical signal which are coupled to output a mixed signal, the mixed signal is transmitted to a separating and converting unit to obtain electrical millimeter wave signals; the electrical millimeter wave signals are transmitted through an MIMO wireless link to a signal sampling and processing unit to be converted into digital signals for digital signal processing.

Abstract: Methods and apparatus for storing a control voltage of a phased-locked loop (PLL) when switching from mission mode to standby mode for the PLL, and for restoring the control voltage of the PLL when switching back to mission mode. An example PLL circuit includes a charge pump, a voltage-controlled oscillator (VCO) having a control input coupled to an output of the charge pump via a node, and a tracking circuit coupled to the node. The tracking circuit is generally configured to sample a voltage of the node during a mission mode, save a representation of the sampled voltage before entering a standby mode, and restore the sampled voltage to the node for reentering the mission mode using the saved representation of the sampled voltage.

Abstract: Methods and apparatus for storing a control voltage of a phased-locked loop (PLL) when switching from mission mode to standby mode for the PLL, and for restoring the control voltage of the PLL when switching back to mission mode. An example PLL circuit includes a charge pump, a voltage-controlled oscillator (VCO) having a control input coupled to an output of the charge pump via a node, and a tracking circuit coupled to the node. The tracking circuit is generally configured to sample a voltage of the node during a mission mode, save a representation of the sampled voltage before entering a standby mode, and restore the sampled voltage to the node for reentering the mission mode using the saved representation of the sampled voltage.

Abstract: Aspects of the present disclosure provide techniques and apparatus for synchronizing phase-locked loop (PLL) circuits. An example method of operating PLL circuits includes obtaining an indication to perform a synchronizing action at a first PLL circuit and a second PLL circuit; and performing the synchronizing action at the first PLL circuit and the second PLL circuit in response to obtaining the indication.

Abstract: The present disclosure provides a photonics-aided vector terahertz signal communication system. The system includes an optical frequency comb generation module, a vector terahertz signal generation module, an optical fiber transmission module, a vector terahertz signal detection module, and a vector terahertz signal emission module that are sequentially connected, where the vector terahertz signal generation module includes a first binary sequence generator, a first electronic amplifier, and a first intensity modulator that are sequentially connected, the first binary sequence generator generates binary data representing to-be-transmitted data, the first intensity modulator performs, based on the binary data, amplitude modulation on an optical frequency comb entering the first intensity modulator, and an optical signal obtained after the modulation of the first intensity modulator is a vector terahertz signal carrying the to-be-transmitted data.

Abstract: A latch for a closure panel of a vehicle comprising: a housing; a ratchet pivotally mounted the housing for moving between an open position and a primary position; a pawl pivotally mounted on the housing, the pawl biased towards the ratchet for holding the ratchet in a secondary position and in the primary position, the secondary position located between the open position and the primary position; and a position sensor for detecting a first position of the ratchet when at the primary position as well as a second position when the ratchet is at the secondary position.