Abstract: This disclosure provides a semiconductor package including a chip, a drain lead frame assembly, a source lead frame assembly, and an insulation layer. The chip includes an opposite drain surface and source surface. The drain lead frame assembly includes a drain contact plate, a drain connecting section, and drain leads integrally formed into one piece. The drain contact plate is physically connected to the drain surface. An area of the drain contact plate is larger than that of the drain surface. The source lead frame assembly includes a source contact plate, a source connecting section, and source leads integrally formed into one piece. The source contact plate is physically connected to the source surface. An area of the source contact plate is smaller than that of the source surface. The insulation layer encapsulates the chip and surrounds the drain contact plate and the source contact plate.

Abstract: The present invention relates to the field of installation detection, in particular to an automatic detection system for installation of an intelligent door lock.

Abstract: A substance component detection apparatus and a method are provided to reduce absorption of an infrared signal by a window medium, thereby obtaining abundant fingerprint region signals. The apparatus includes: a sample pool, an infrared optical window, an infrared light source, and a detector. The infrared optical window has a first surface that faces an inner side of the sample pool and that is configured to be in contact with a to-be-detected substance, and a second surface exposed on an outer side of the sample pool. A protruding portion is formed between two adjacent grooves on the second surface, and any protruding portion has an incident surface and an emergent surface. An infrared signal emitted by the infrared light source is irradiated on the incident surface. The detector determines a component of the to-be-detected substance and/or content of the component.

Abstract: A sensor for detecting material deposits in a fluid flow conduit includes a body and an array of pairs of temperature sensors disposed within the body, where each pair of temperature sensors is spaced a distance apart along a primary flow direction of the fluid flow conduit.

Abstract: An indication box used with an electronic smart lock indicates if a public service room is in use. A color plate partially shown in a window moves vertically up and down with door handle motion. Unlike other indicators, the door handle and not lock actives use indication to avoid mishaps from forgetting to lock the door. The color plate is spring loaded with a V-shaped bottom. The color plate vertically moves by a cam having two L-shaped portions forming a V-shaped recess to initially secure the color plate's V-shaped bottom. Cam activation is through a dial head that moves with the door handle. When the color plate indicates use, the V-Shaped bottom rests on one of the cam's L-shaped portions. The color plate may also include braille markings. The indication box is used on a door's front portion with any electronic smart lock design and operates without electrical power.

Abstract: A gas turbine engine is provided. The gas turbine engine includes: a turbomachine; a fan including a plurality of fan blades rotatably driven by the turbomachine; a nacelle surrounding at least in part the plurality of fan blades of the fan; and a clearance control system including a control ring positioned at least partially within the nacelle, coupled to the nacelle, or both for control of a clearance gap between the plurality of fan blades and the nacelle.

Abstract: Morphable rotor blades for a turbine engine systems include a root portion and an airfoil portion having a morphable portion including a morphable material that changes shape in response to a stimulus.

Abstract: This application discloses a polymer, a leveling agent, and preparation methods thereof, an electroplating solution, and an electroplating method, and pertains to the field of electroplating technologies. The polymer includes a plurality of repeating units, and the repeating unit includes: a binary epoxy compound residual group and a nitrogen-containing group. The binary epoxy compound residual group is a residue formed after an epoxy bond of a binary epoxy compound is ring-opened. The nitrogen-containing group includes: an alkyl group, and a dimethylamine group and a nitrogen-containing heterocyclic group that are respectively connected to two ends of the alkyl group, where the dimethylamine group is further connected to the binary epoxy compound residual group through a single bond. The polymer is conducive to obtaining a high-coplanarity plating at a high current density, and is especially suitable for being used as a leveling agent in an electroplating solution.

Abstract: The present invention relates to the technical field of intelligent locks, and particularly to an intelligent lock management system, comprising an intelligent lock unit, wherein the intelligent lock unit comprises an intelligent lock, a lock control module and an identification terminal, and the intelligent lock unit is used for controlling the usage states of the intelligent lock; a server unit, wherein the server unit is communicatively connected with the intelligent lock unit, and the server unit is used for processing the receiving and sending of user information and control information. The server unit comprises an information writing module, a permission management module, an information deletion module and a data recording module. The permission management module is used for classifying and managing user permission data, and the user permission levels are at least 2. In the present invention, the permission management of the lock is divided into at least two levels.

Abstract: Cover plate connections for a hollow fan blade are disclosed. An example fan blade includes a hollow body including a first surface defining a cavity, the hollow body including an aperture extending through the first surface, the first surface including a notch, and a cover plate including a rib protruding from a second surface of the cover plate, the notch enclosing the rib to couple the cover plate to the first surface such that the cover plate encloses the aperture.

Abstract: An airfoil for a fan section of a turbine engine may include a fan blade or an outlet guide vane formed of a first material, and an edge guard disposed about an edge of the fan blade. The edge guard may include a matrix composite that has a toughness that is greater than a toughness of the first material. The airfoil may include a fan blade or an outlet guide vane. The first material of the airfoil may include a metal alloy and/or a matrix composite. A method of manufacturing an airfoil for a fan section of a turbine engine may include manufacturing an edge guard, attaching the edge guard to the airfoil.

Abstract: The present invention relates to the technical field of intelligent locks, and particularly to an intelligent lock management system, comprising an intelligent lock unit, wherein the intelligent lock unit comprises an intelligent lock, a lock control module and an identification terminal, and the intelligent lock unit is used for controlling the usage states of the intelligent lock; a server unit, wherein the server unit is communicatively connected with the intelligent lock unit, and the server unit is used for processing the receiving and sending of user information and control information. The server unit comprises an information writing module, a permission management module, an information deletion module and a data recording module. The permission management module is used for classifying and managing user permission data, and the user permission levels are at least 2. In the present invention, the permission management of the lock is divided into at least two levels.

Abstract: An indication box used with an electronic smart lock indicates if a public service room is in use. A color plate partially shown in a window moves vertically up and down with door handle motion. Unlike other indicators, the door handle and not lock actives use indication to avoid mishaps from forgetting to lock the door. The color plate is spring loaded with a V-shaped bottom. The color plate vertically moves by a cam having two L-shaped portions forming a V-shaped recess to initially secure the color plate's V-shaped bottom. Cam activation is through a dial head that moves with the door handle. When the color plate indicates use, the V-Shaped bottom rests on one of the cam's L-shaped portions. The color plate may also include braille markings. The indication box is used on a door's front portion with any electronic smart lock design and operates without electrical power.

Abstract: Cover plate connections for a hollow fan blade are disclosed. An example fan blade includes a hollow body including a surface defining an airfoil, the hollow body including an aperture extending through the surface, a cover plate, and at least one connection element to couple the cover plate to the surface such that the cover plate encloses the aperture.

Abstract: The present disclosure provides a method for preparing a piezoresistive sensor material, including: preparing a wood fiber aerogel; conducting dopamine self-polymerization on the surface of the aerogel to obtain a wood fiber-based hydrogel; soaking the wood fiber-based hydrogel in a nano conductive phase suspension or a nano conductive phase precursor to form a conductive phase-loaded wood fiber-based hydrogel; subjecting the conductive phase-loaded wood fiber-based hydrogel to reaction with an aqueous solution including a polyelectrolyte monomer, a crosslinker, an initiator and a catalyst to form a conductive phase-wood fiber-based hydrogel composite; and complexing the composite with metal ions. The present disclosure further discloses a piezoresistive sensor including the sensor material, and a preparation method thereof.