Abstract: A backrest armrest linkage assembly and folding chair frame; the backrest armrest linkage assembly includes a backrest bar and a armrest bar, wherein the middle section of the backrest bar is hinged on the rear support shaft behind the chair, and the lower end is constrained in the guide sleeve. The front section of the armrest bar is positioned on the front support shaft in front of the chair through the chute seat, and the rear end section is hinged to the lower section of the backrest bar, which can draw and restrain the swing angle of the backrest bar, and thus constitute a folding chair frame with adjustable backrest.

Abstract: A method of making a catalyst layer of a membrane electrode assembly (MEA) for a polymer electrolyte membrane fuel cell includes the step of preparing a porous buckypaper layer comprising at least one selected from the group consisting of carbon nanofibers and carbon nanotubes. Platinum group metal nanoparticles are deposited in a liquid solution on an outer surface of the buckypaper to create a platinum group metal nanoparticle buckypaper. A proton conducting electrolyte is deposited on the platinum group metal nanoparticles by electrophoretic deposition to create a proton-conducting layer on the an outer surface of the platinum nanoparticles. An additional proton-conducting layer is deposited by contacting the platinum group metal nanoparticle buckypaper with a liquid proton-conducting composition in a solvent. The platinum group metal nanoparticle buckypaper is dried to remove the solvent. A membrane electrode assembly for a polymer electrolyte membrane fuel cell is also disclosed.

Abstract: A damping positioning device and a sunshade awning is provided. The damping positioning device comprises a fixing member and a damping member rotatably hinged on the fixing member. The damping member is provided with a curved slot or curved hole which allows for a rod to pass through and has the function of damping positioning. The damping positioning device is adopted to position the oblique rods in the sunshade awning which plays an adjustment role, in order to make sliding-based adjustment and self-positioning, and realize the purposes of adjusting the sunshade angle and folding the sunshade awning.

Abstract: A folding swing chair support, which comprises: two long rod sets formed by cross-hinging two long rods and two short rod sets formed by cross-hinging two short rods. The two long rod sets stand on the front and rear facades, respectively, and the two sides are hinged by short rod sets to form an associated support as a whole; the upper ends of the two long rods in the long rod sets form suspension points, and the lower ends thereof function to support on the ground. The utility model is characterized by ingenious conception, stable structure, folding and unfolding linkage, and smooth operation.

Abstract: Devices, systems and methods are provided to implement key generation for secure pairing between first and second devices using embedded out-of-band (OOB) key generation and without requiring the devices to have input/output (IO) capability to enter authentication information. Bluetooth Smart or Low Energy (BLE) OOB pairing option can be used for pairing medical devices with added security of OOB key generation. The OOB key generation comprises providing first and second devices with the same predefined credential and secure hashing algorithm, and making input of the hashing algorithm of the first and second devices the same. The first device transmits unique data to second device (e.g., via BLE advertising) to share and compute a similar input. The first and second devices use the credential and shared data with the hashing function to generate a key that is the same at each of first and second devices.

Abstract: Disclosed provides a compound nutrient capable of repairing damaged intestinal tract of piglets and application thereof. The compound nutrient comprises the following components in weight percentage: organic acid 30-50%, amino acid 20-30%, enzyme preparation 8-15%, Bacillus subtilis 5-15%, mineral element 4-6%, glucose 5-20%. The enzyme preparation includes amylase, lipase and protease, and the weight ratio of amylase, lipase and protease is 1-2:1:1-2. The compound nutrient can repair the intestinal health of piglets with diarrhea, reduce the rate of diarrhea, and improve the growth performance.

Abstract: Structures for a photodetector and methods of forming a structure for a photodetector. The structure includes a semiconductor layer having a p-n junction and a deep trench isolation region extending through the semiconductor layer. The deep trench isolation region includes first layers and second layers that alternate with the first layers to define a Bragg mirror. The first layers contain a first material having a first refractive index, and the second layers contain a second material having a second refractive index that is greater than the first refractive index.

Abstract: A method of making a catalyst layer of a membrane electrode assembly (MEA) for a polymer electrolyte membrane fuel cell includes the step of preparing a porous buckypaper layer comprising at least one selected from the group consisting of carbon nanofibers and carbon nanotubes. Platinum group metal nanoparticles are deposited in a liquid solution on an outer surface of the buckypaper to create a platinum group metal nanoparticle buckypaper. A proton conducting electrolyte is deposited on the platinum group metal nanoparticles by electrophoretic deposition to create a proton-conducting layer on the an outer surface of the platinum nanoparticles. An additional proton-conducting layer is deposited by contacting the platinum group metal nanoparticle buckypaper with a liquid proton-conducting composition in a solvent. The platinum group metal nanoparticle buckypaper is dried to remove the solvent. A membrane electrode assembly for a polymer electrolyte membrane fuel cell is also disclosed.

Abstract: A folding swing chair support, which comprises: two long rod sets formed by cross-hinging two long rods and two short rod sets formed by cross-hinging two short rods. The two long rod sets stand on the front and rear facades, respectively, and the two sides are hinged by short rod sets to form an associated support as a whole; the upper ends of the two long rods in the long rod sets form suspension points, and the lower ends thereof function to support on the ground. The utility model is characterized by ingenious conception, stable structure, folding and unfolding linkage, and smooth operation.

Abstract: The present disclosure relates to semiconductor structures and, more particularly, to temperature sensors with programmable magnetic tunnel junction structures and methods of manufacture. A structure includes a resistor material connected in series with a programmable magnetic tunnel junction structure in a Wheatstone bridge configuration.

Abstract: Structures for a single-photon avalanche diode and methods of forming a structure for a single-photon avalanche diode. The structure includes a semiconductor layer having a first well and a second well defining a p-n junction with the first well, and an interlayer dielectric layer on the semiconductor layer. A deep trench isolation region includes a conductor layer and a dielectric liner. The conductor layer penetrates through the semiconductor layer and the interlayer dielectric layer. The conductor layer has a first end, a second end, and a sidewall that connects the first end to the second end. The dielectric liner is arranged to surround the sidewall of the conductor layer. A metal feature is connected to the first end of the conductor layer.

Abstract: A speech recognition method includes acquiring speech data, inputting a speech feature matrix of the speech data to a speech recognition model, the speech feature matrix being used for representing time-domain and frequency-domain features of the speech data, performing attention encoding on the speech feature matrix through the speech recognition model to obtain an encoded matrix, the encoded matrix including multiple encoded vectors, and decoding the multiple encoded vectors in the encoded matrix according to positions of the multiple encoded vectors in the encoded matrix to output a character string corresponding to the speech data, a decoding sequence of the multiple encoded vectors being related to the positions of the multiple encoded vectors in the encoded matrix.

Abstract: A folding push cart that includes a cart body frame and a storage bag. The front, rear, left, and right vertical surfaces of the cart body frame each includes more than one set of cross-hinged diagonal rods. The bottom of the cart body frame is hinged on the hinge base. The bottom plane of the cart body frame is supported by two left and right folding rod groups, which are hinged on the horizontal slot of the hinge seat on the front and rear vertical surfaces. When opened in place, it can be supported, and it also has a correcting effect on the hinge seat.

Abstract: A semiconductor device may be provided including a first series portion and a second series portion electrically connected in parallel with the first series portion. The first series portion may include a first MTJ stack and a first resistive element electrically connected in series. The second series portion may include a second MTJ stack and a second resistive element electrically connected in series. The first resistive element may include a third MTJ stack and the second resistive element may include a fourth MTJ stack. The first, second, third, and fourth MTJ stacks may include a same number of layers, which may include a fixed layer, a free layer, and a tunnelling barrier layer between the fixed layer and the free layer. Alternatively, the first resistive element may include a first transistor and the second resistive element may include a second transistor.

Abstract: Devices, systems and methods are provided to implement key generation for secure pairing between first and second devices using embedded out-of-band (OOB) key generation and without requiring the devices to have input/output (IO) capability to enter authentication information. Bluetooth Smart or Low Energy (BLE) OOB pairing option can be used for pairing medical devices with added security of OOB key generation. The OOB key generation comprises providing first and second devices with the same predefined credential and secure hashing algorithm, and making input of the hashing algorithm of the first and second devices the same. The first device transmits unique data to second device (e.g., via BLE advertising) to share and compute a similar input. The first and second devices use the credential and shared data with the hashing function to generate a key that is the same at each of first and second devices.

Abstract: Disclosed is a piglet feed based on bacteria enzyme synergistic fermentation process. The piglet feed is composed of basic components and bacteria enzyme synergistic fermentation feed. Basic components include soybean protein concentrate, whey powder, fish meal, sodium chloride, choline chloride, stone powder, calcium hydrogen phosphate, composite vitamins, composite trace elements, and composite amino acids. The bacterial enzyme synergistic fermentation feed includes a fermentation substrate, an enzyme preparation, and a bacterial strain. The bacterial enzyme synergistic fermentation feed can not only improve the production performance of piglets, but also improve the utilization rate of feed nutrients, especially the utilization rate of feed phosphorus, thereby reducing the excretion of phosphorus in feces.

Abstract: The present disclosure relates to semiconductor structures and, more particularly, to 3-contact hall sensors and methods of manufacture and modes of operation. The structure includes: a plurality of sensing blocks each of which include a plurality of contacts; a first switching element connecting to a first set of sensing blocks of the plurality of sensing blocks; and a second switching element connecting to a second set of sensing blocks of the plurality of sensing blocks.

Abstract: Structures for a single-photon avalanche diode and methods of forming a structure for a single-photon avalanche diode. The structure includes a semiconductor substrate having a top surface, a semiconductor layer on the top surface of the semiconductor substrate, a light-absorbing layer on a portion of the semiconductor layer, and a doped region in the portion of the semiconductor layer. The doped region is positioned in the portion of the semiconductor layer adjacent to the light-absorbing layer.

Abstract: A folding swivel chair support frame, which includes a seat frame and a chair leg frame; and the seat frame includes a U-shaped first support rod, a second support rod, and a cushion rod that are hinged to each other, and a foldable connection is formed by a turntable and a shaft rod that is locked on the first support rod. The seat frame is inserted into the guide tube of the chair leg frame by means of the shaft rod to form a docking position with the chair leg frame, and the turntable on the seat frame abuts against the support plate of the chair leg frame to from a rotatable load-bearing support.

Abstract: A folding table, the supporting part of which includes an upper connecting plate, a lower connecting plate, a tabletop support rod, a connecting rod and a ground support rod. One end of the tabletop support rod used to support the tabletop fabric and is hinged on the lower connecting plate, and the connecting rod is associated with the tabletop support rod and the upper connecting plate, and a shaft rod is arranged between the upper and lower connecting plates. The ground support rod passes through a slide bushing positioned on the tabletop support rod, and the upper end is hinged on the upper connecting plate or the connecting rod. The support rod of the tabletop opens to support the whole structure.