Abstract: An expandable canopy tent frame includes two sets of four-bar linkage with overlapping and staggered central axial lines. The central axial hinge point and the side edge hinge point of the two linkage sets are aligned. The central axial hinge points have a lateral bar. The two ends of the lateral bar pass through the slide bushings on the side edge hinge points, and the slide bushings form the support with both sides of the lateral bar. The main structure has at least one fixed end and can be fixed on objects by utilizing that fixed end.

Abstract: A Hall effect sensor device may be provided, including one or more sensor structures. Each sensor structure may include: a base layer having a first conductivity type; a Hall plate region having a second conductivity type opposite from the first conductivity type arranged above the base layer; a first isolating region arranged around and adjoining the Hall plate region, and contacting the base layer; a plurality of second isolating regions arranged within the Hall plate region; and a plurality of terminal regions arranged within the Hall plate region. The first and second isolating regions may include electrically insulating material, and each neighboring pair of terminal regions may be electrically isolated from each other by one of the second isolating regions.

Abstract: A folding bed frame that includes four vertical faces: two ends and two sides. Each face is formed by two slanting bars that are cross hinged together. The upper and lower ends of adjacent slanting bar sets are hinged together to form the whole frame structure. The two vertical faces are corresponding or symmetric, and each includes two sets of slanting bar sets that are hinged through to middle sections of the upper and lower angle plates. There is a vertical rod part on the cross-hinging point of each set of slanting bar set, and its movable position is set by a slide bushing. There is a barrier that is on the cross-hinging point of one of the slanting bars. The barrier can contact the upper part vertical bar, and form two support points with the slide bushing for the vertical bar part.

Abstract: A braking caster is provided that includes casters, a frame, braking plates, and springs. One end of a spring is hung on to the spring hook of the brake plate, and the other end is hung on to the frame. As the unstable status is caused by the spring swinging with the brake plate to the position of the rivet, the manually driven brake handle bypasses the unstable status, and can achieve stable braking and released statuses.

Abstract: An expandable canopy tent frame includes two sets of four-bar linkage with overlapping and staggered central axial lines. The central axial hinge point and the side edge hinge point of the two linkage sets are aligned. The central axial hinge points have a lateral bar. The two ends of the lateral bar pass through the slide bushings on the side edge hinge points, and the slide bushings form the support with both sides of the lateral bar. The main structure has at least one fixed end and can be fixed on objects by utilizing that fixed end.

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 improve pairing between two devices by employing an inductive antenna circuit (e.g., 13.56 MHz) in addition to another wireless communication antenna circuit (e.g., 2.4 GHz) and a pairing protocol to minimize pairing between unintended devices. Communications via inductive antenna circuit (e.g., 13.56 MHz) require that the devices to be paired to be in close proximity to each other, which increases the likelihood of intended pairing between these devices. When the inductive pulses of the first device are detected by the second device, the second device commences advertising signals with time stamps. The inductive pulses and the time stamps facilitate synchronizing scanning windows of the first device with the advertising signals of the second device to lessen the likelihood of interference of advertising pulses from an unintended device.

Abstract: The present application provides a terahertz leaky-wave antenna measuring system in which an original feed enclosed by a structure is replaced with a probe. The probe is moved along grooves in different directions to acquire amplitude and phase information in real-time to achieve an antenna equivalent measurement according to the reciprocity theorem, wherein the feed and the structure are separated from each other.

Abstract: A chair leg bridge connector is shown. The bridge connector is made of stamp-molded steel plate. Two sets of curve sections face the same direction. The two bent surfaces of each set are parallel, and through hole is provided for rivet or axis to pass through. The through hole axial lines of the two sets of curve sections have a corner angle to allow bridge positioning of the two facade supporting frames. Butterfly chairs that use this type of bridge connector with reinforcement warp plate at the tube hinging spot can be directly formed using lighter tubes to make the structure more mobile.

Abstract: An electrochemical energy storage device includes an anode having a first mixture which includes a first plurality of electrically conductive carbon-comprising particles having a first average porosity, and lithium metal materials. The weight ratio of the first plurality of carbon-comprising and lithium metal materials is from 30:1 to 3:1. A cathode includes a second mixture having a second plurality of electrically conductive carbon-comprising particles having a second average porosity greater than the first average porosity, and lithium-intercalating metal oxide particles. The weight ratio of the second plurality of carbon-comprising and lithium-intercalating metal oxide particles is from 1:20 to 5:1. The weight ratio between the lithium metal materials loaded in the anode and the second plurality of carbon-comprising particles in the cathode is from 0.1-10%. An electrolyte physically and ionically contacts the anode and the cathode, and fills the pore volume in the anode, cathode and a porous separator.

Abstract: The present disclosure provides a waveguide-excited terahertz microstrip antenna. The antenna includes a dielectric substrate, a ground plate, a rectangular waveguide, a metal pin, and a radiation patch. The dielectric substrate has a first surface and a second surface opposite to the first surface. The ground plate is located on the first surface of the dielectric substrate and defines a coupling slit. The rectangular waveguide is located on a surface of the ground plate away from the dielectric substrate and extended substantially along a first direction parallel to the first surface. The metal pin is located inside the rectangular waveguide, and is in contact with the ground plate and substantially perpendicular to the ground plate. The radiation patch is located on the second surface of the dielectric substrate.

Abstract: A method for discovering an unexploded ordnance in a target area includes: acquiring first feedback signals respectively corresponding to detection regions, the first feedback signals being first induced electromotive force signals; judging whether there is any abnormal signal in the first feedback signals, if there is the abnormal signal, determining the detection region corresponding to the abnormal signal is an abnormal region; acquiring second feedback signals respectively corresponding to detection sites in the abnormal region, the second feedback signals being magnetic field gradient signals; acquiring third feedback signals respectively corresponding to the detection sites, the third feedback signals being second induced electromotive force signals; acquiring location information of the detection sites; obtaining a feature spatial distribution map of the abnormal region; and judging whether there is any unexploded ordnance in the abnormal region according to the feature spatial distribution map.

Abstract: A fluxgate detector for buried and abandoned chemical weapons is provided, comprising: a probe for sensing an external magnetic field, comprising a probe input and a probe output; an excitation module electrically connected to the probe input for inputting an excitation signal into the probe; a frequency selection module electrically connected to the probe output for isolating a second harmonic signal in an induced voltage generated by the probe; and a signal acquisition module electrically connected to the frequency selection module. The second harmonic signal in the induced voltage can be isolated by the frequency selection module, transmitted to the signal acquisition module, and converted to an intensity of the magnetic field by the signal acquisition module. The substance detected can be identified according to the intensity of the magnetic field, so that the buried ACWs can be found efficiently and accurately.

Abstract: A horizontal moving & rocking appliance and chair includes a ground piece, mid and rear rollers eccentrically positioned at a mid and rear ends of ground pieces, synchronous link rods hinged between mid and rear rollers. In stationary state, the mid roller positioning shaft is in a forward rolling lower position while the rear roller positioning shaft is in a backward rolling higher position, and these together with the fore ends of ground pieces form a three-ground point; A horizontal moving & rocking chair includes a chair and horizontal moving & rocking appliance mounted on both sides of legs.

Abstract: A webbing seat and seat body include a hem and seat section. A seat body is fixed to armrest through hem. A sitting section includes cushion and backrest and material of cushion is same as that of hem. A backrest is composed of webbing with one end sewn to hem and the other to cushion's edge. A front edge of cushion is sewn to hem and back edge suspended through webbing to take shape of stretching backrest.

Abstract: Structures for a Hall sensor and methods of forming a structure for a Hall sensor. The structure includes a semiconductor body having a top surface and a sloped sidewall defining a Hall surface that intersects the top surface. The structure further includes a well in the semiconductor body and multiple contacts in the semiconductor body. The well has a section positioned in part beneath the top surface and in part beneath the Hall surface. Each contact is coupled to the section of the well beneath the top surface of the semiconductor body.

Abstract: A folding chair that includes a frame and seat and back fabric supported by the frame. The frame includes primary leg frames and secondary leg frames that cross-hinge on both sides, and the lower sections hinge to a pair of backrest bars of the secondary leg frames. There is a support ring or armrest bars at the hinges between the primary leg bars and the backrest bars to form traction to the backrest bars and to provide armrest function.

Abstract: The present invention is directed to a method for pre-lithiation of negative electrodes during lithium loaded electrode manufacturing for use in lithium-ion capacitors. There is provided a system and method of manufacture of LIC electrodes using thin lithium film having holes therein, and in particular, to the process of manufacturing lithium loaded negative electrodes for lithium-ion capacitors by pre-lithiating electrodes with thin lithium metal films, wherein the thin lithium metal films include holes therein, and the lithium loaded negative electrodes are manufactured using a roll-to-roll lamination manufacturing, process.

Abstract: A method for constructing an ALA production bacterial strain, the method enhances the activity of related enzymes promoting the synthesis of oxaloacetate and in the 5-aminolevulinic acid (ALA) production bacterial strain, or introducing exogenous related enzymes promoting the synthesis of oxaloacetate, such as phosphoenolpyruvate carboxylase or pyruvate carboxylase, and/or reducing the activity of related enzymes in the downstream metabolic pathway of succinyl coenzyme A in the bacterial strain, such as succinyl coenzyme A synthetase or succinate dehydrogenase, and/or reducing the activity of phosphoenolpyruvate carboxylated kinase and/or malic enzyme. An ALA high-yield bacterial strain constructed by utilizing the method, and method for utilizing the bacterial strain to prepare ALA.

Abstract: Devices, systems and methods are provided to improve pairing between two devices by employing an inductive antenna circuit (e.g., 13.56 MHz) in addition to another wireless communication antenna circuit (e.g., 2.4 GHz) and a pairing protocol to minimize pairing between unintended devices. Communications via inductive antenna circuit (e.g., 13.56 MHz) require that the devices to be paired to be in close proximity to each other, which increases the likelihood of intended pairing between these devices. When the inductive pulses of the first device are detected by the second device, the second device commences advertising signals with time stamps. The inductive pulses and the time stamps facilitate synchronizing scanning windows of the first device with the advertising signals of the second device to lessen the likelihood of interference of advertising pulses from an unintended device.