Abstract: A perovskite quantum dot preparation method and a perovskite quantum dot solution are provided. The preparation method may include: providing a first solution including caesium oleate, a second solution including lead halide and a third solution including DDAB; adding the first solution, the second solution and the third solution into a non-polar alkyl solution at a preset proportion and stifling to obtain a perovskite quantum dot solution; the perovskite quantum dot solution may include caesium-lead-halogen of pure phase. In this way, the present disclosure can easily obtain the perovskite quantum dot solution including caesium-lead-halogen of pure phase.

Abstract: An open-loop control assistance (“OLCA”) system can collect data, correlate and aggregate the data, and perform multi-dimensional analytics on the correlated and aggregated data. The OLCA system can then determine plurality of viable options for a next action to be taken by an operator in an open-loop control process, and can determine a specific option as an optimal choice for the operator to select. The OLCA system can present the plurality of viable options and a rationale explaining why the operator should select the specific option. The OLCA system can capture action(s) taken by the operator, and if the action does not correspond to the recommended action, the OLCA system can capture a reason regarding why the optimal choice was not selected. The OLCA system can analyze results from the action(s). The OLCA system can then fine-tune the open-loop control process based upon the results and the cause(s) thereof.

Abstract: A wavelength conversion element, a forming method of the wavelength conversion element, a wavelength conversion module and a projection device are provided. The wavelength conversion element includes a wavelength conversion material, a binder, a filling material and a plurality of cavities. The wavelength conversion material is dispersed in the binder to form a wavelength conversion layer. The filling material is located in the wavelength conversion layer. The cavities are located in the wavelength conversion layer, wherein the filling material fills some of the cavities. The wavelength conversion module includes a substrate and the above wavelength conversion element. The projection device includes the above wavelength conversion module, an excitation light source, a light valve and a projection lens. The disclosure enables the projection device to have good conversion efficiency and reliability.

Abstract: A power tool includes a tool housing and a motor assembly received in the tool housing. The motor assembly has a rear end portion, a front end portion, and a motor output shaft. A transmission housing is coupled to the motor housing with a transmission received in the transmission housing, to which the motor output shaft is drivingly coupled. A partition assembly includes a rear cover covering a rear end portion of the transmission housing that faces the front end portion of the motor. The rear cover of the transmission housing and the front end portion of the motor together define at least a first labyrinth path and a second labyrinth path therebetween configured to inhibit grease or dust migration between the transmission housing and the motor assembly.

Abstract: Provided herein are photopolymerizable monomers, optionally for use as reactive diluents in a high temperature lithography-based photopolymerization process, a method of producing polymers using said photopolymerizable monomers, the polymers thus produced, and orthodontic appliances comprising the polymers.

Abstract: A semiconductor device includes a first interlayer dielectric layer disposed over a substrate, metal wirings, a second interlayer dielectric layer disposed over the first interlayer dielectric layer and the metal wirings, a first air gap and a second air gap. The metal wirings are embedded in the first interlayer dielectric layer, and arranged with a first space or a second space between the metal wirings. The second space has a greater length than the first space. The first air gap is formed by the second interlayer dielectric layer and formed in a first area sandwiched by adjacent two metal wirings arranged with the first space. The second air gap is formed by the second interlayer dielectric layer and formed in a second area sandwiched by adjacent two metal wirings arranged with the second space therebetween. No adjacent two metal wirings are arranged with a space smaller than the first space.

Abstract: A semiconductor device includes a substrate having a fin projecting upwardly through an isolation structure over the substrate; a gate stack over the isolation structure and engaging the fin; and a gate spacer on a sidewall of the gate stack and in physical contact with the gate stack. The semiconductor device further includes a first dielectric layer vertically between the fin and the gate spacer. The semiconductor device further includes a second dielectric layer vertically between the first dielectric layer and the gate spacer, wherein the first and second dielectric layers include different materials, and wherein the second dielectric layer is in physical contact with the gate spacer and the first dielectric layer.

Abstract: An ultra-high whiteness aqueous white color paste for digital textile printing ink is provided, which comprises: 40 wt % to 70 wt % of TiO2 powders; 1 wt % to 5 wt % of a wetting agent; 2 wt % to 12 wt % of a dispersant; and rest of water. Herein, the TiO2 powders are rutile TiO2 powders, the wetting agent is a fatty acid derivative, and the dispersant is an acrylic acid copolymer. In addition, the present disclosure thrther provides an ink composition using the aforesaid ultra-high whiteness aqueous white color paste.

Abstract: A stand device includes a base, a supporting component and a carrying component. The supporting component is pivotally disposed to the base along a first axis. The carrying component is pivotally disposed to the supporting component along a second axis, and slidably disposed to the supporting component in a first direction. The stand device is switchable between a first state and a second state. In the first state, the extending direction of the supporting component is parallel to the extending direction of the base, and the extending direction of the carrying component is parallel to the extending direction of the supporting component. In the second state, the extending direction of the supporting component is staggered to the extending direction of the base, and the extending direction of the carrying component is staggered to the extending direction of the supporting component.

Abstract: The present disclosure pertains to a network node (100) for a wireless communication network. The network node (100) is adapted for scheduling for communication one or more terminals, the terminals being in a moving vehicle, based on location information and/or capability information pertaining to the one or more terminals (10). The disclosure also pertains to related methods and devices.

Abstract: A method for configuring an automated dialogue system uses traces of interactions via a graphical user interface (GUI) for an application. Each trace includes interactions in the context of a plurality of presentations of the GUI. Elements of one or more presentations of the GUI are identified, and templates are associated with portions of the trace. Each template has one or more defined inputs and a defined output. For each template of the plurality of templates, the portions of the traces are processed to automatically configure the template by specifying a procedure for providing values of inputs to the template via the GUI and obtaining a value of an output. The automated dialogue system is configured with the configured templates, thereby avoiding manual configuration of the dialogue system.

Abstract: The present invention relates to positioning technology and more particularly, to a method, device and system for antenna delay calibration. An embodiment of the present invention provides a method for antenna delay calibration, including the following steps: receiving delay and location distance between a first node and a second node; inputting the delay between the first node and the second node into a preset detection distance calculation formula to obtain a detection distance between the first node and the second node; inputting the location distance and detection distance into a preset actual delay calculation formula to obtain an actual delay; and inputting the actual delay into a node to calibrate and verify the node. The embodiment of the present invention obtains the actual delay by calculating the location distance and detection distance.

Abstract: A speaker capable of active cooling includes a basin frame, and a vibration system and a magnetic circuit system accommodated in the basin frame. The vibration system includes a diaphragm and a voice coil fixed on the diaphragm through a top end of a winding portion thereof. The magnetic circuit system includes a T-iron, a magnet and a washer, wherein the washer and the magnet are located above the T-iron, a magnetic gap is formed between the washer and the magnet and the T-iron, and the voice coil moves up and down in the magnetic gap. The speaker further comprises an active cooling module fixed to a back of the T-iron, and the active cooling module cools the magnetic circuit system by means of heat conduction.

Abstract: An integrated circuit structure and method of forming is provided. A die is placed on a substrate and encased in molding compound. A redistribution layer is formed overlying the die and the substrate is removed. One or more surface mounted devices and/or packages are connected to the redistribution layer on an opposite side of the redistribution layer from the die. The redistribution layer is connected to a printed circuit board.

Abstract: The fiber optic adapter of the present invention includes a hollow housing, an arm and a protrusion. The arm is disposed in the housing and one end thereof is coupled to the housing. The protrusion is disposed on the arm for engaging with a protrusion on a fiber optic connector. The protrusion on the arm has a first surface, a second surface, a third surface, a fourth surface, a first side face and a second side face. The first, second, third and fourth surfaces are connected to the first and second side faces. The second surface is located between the first surface and the third surface. The third surface is located between the second surface and the fourth surface. The fourth surface is closer to the junction of the arm and the housing than the third surface. The edges formed between the third surface and the second and fourth surfaces are not sharp. The edges are round edges and have a radius of curvature ranged from 0.1 mm to 0.7 mm. The present invention further provides a fiber optic connector.

Abstract: Methods, systems, and devices for wireless communications are described. In some wireless communications systems, devices may implement transmission repetitions for transport blocks (TBs) to improve reception reliability. However, to support low latency, TBs may be transmitted in any transmission time interval (TTI) within a subframe. The systems may implement process to handle these TB repetitions. In some cases, a device may receive, during a TTI of a subframe, control information including an indication of transmission repetitions of a TB for a plurality of TTIs, identify a quantity of transmission repetitions of the TB based on the control information, and monitor for the transmission repetitions of the TB.

Abstract: A computer implemented method for generating contextual workflows includes receiving a plurality of images, analyzing the received plurality of images to identify one or more activities corresponding to the plurality of images and one or more contextual details corresponding to the plurality of images, wherein the contextual details indicate a capture location, a capture time, a capture sequence, or a capture subject for the plurality of images, calculating a confidence weighting for the one or more identified activities for the plurality of images, creating a contextual workflow according to the calculated confidence weightings, receiving a query for a workflow corresponding to an indicated context, and identifying one or more workflows that matches the indicated context.

Abstract: An electrically powered tool includes a cage assembly that has a cage, driving component, executing component, and cylindrical housing. The cage includes a base, a rear cage extending rearwards from the base, and a front cage extending forwards from the base. The driving component is positioned on the rear cage. The executing component is positioned on the front cage, and includes an output shaft extending forwards. The driving and executing components are positioned on the cage so as to form the cage assembly. The cage assembly is received in the cylindrical housing, and is configured to be mounted in the cylindrical housing in a modular fashion. Prior to insertion in the housing, the driving and executing components are jointly mounted into the cage to form the cage assembly so as to reduce structural redundancy via fixing and fitting, such that an overall body of the assembly smaller and more compact.

Abstract: A circuit structure includes a semiconductor substrate having a top surface. A dielectric material extends from the top surface into the semiconductor substrate. A high-k dielectric layer is formed of a high-k dielectric material, wherein the high-k dielectric layer comprises a first portion on a sidewall of the dielectric material, and a second portion underlying the dielectric material.

Abstract: An assembly of a printed circuit board and a card edge connector for a memory module card includes a card edge connector and a printed circuit board. The card edge connector includes an insulated housing, and a plurality of terminals. The terminals are received in terminal slots formed in the insulated housing, and divided into a plurality of upper and lower terminal rows, respectively received in the terminal slots at two sides of the longitudinal direction. Each terminal row includes a first terminal, a second terminal, and a third terminal. The printed circuit board has plated through holes and grounding via holes. The plated through holes are respectively located at two sides of an orthographic projection of the elongated slot of the card edge connector, and arranged into a plurality of upper rows and a plurality of lower rows at two sides of the printed circuit board.