36results about How to "Extended conduction path" patented technology

A spin valve device includes a non-magnetic enhancement layer adjacent an ultra thin free layer. The thickness of the free layer may be less than the mean free path of a conduction electron through the free layer. The GMR ratio is significantly improved for free layer thicknesses below 50 Å. The enhancement layer allows electrons to travel longer in their spin state before encountering scattering sites. The electronic properties of the enhancement layer material can be matched with the adjacent free layer without creating a low resistance shunt path. Because the free layer may be made ultra thin and the enhancement layer is formed of a nonmagnetic material, less magnetic field is required to align the free layer, allowing for improved data density. Also, the enhancement layer allows for effective bias point control by shifting sensor current density distribution.

An LED tube lamp having an LED unit is disclosed. The LED tube lamp includes a control circuit that selectively determines whether to perform a first mode or a second mode of lighting operation according to a state of a property of an external driving signal and a switching circuit coupled to the control circuit and the LED unit. When the control circuit determines to perform the first mode of lighting operation, the control circuit controls the second circuit in a manner such that the switching circuit maintains its on state to allow continual current to flow through the LED unit, until the external driving signal is disconnected from the LED tube lamp, and when the control circuit determines to perform the second mode of lighting operation, the control circuit controls the switching circuit in a manner to regulate the continuity of current to flow through the LED unit by alternately turning on and off the switching circuit.

A method for manufacturing a lithium secondary battery includes a first step of dispersing a conductive material in a solvent to prepare a conductive slurry; and a second step of mixing the prepared conductive slurry, a positive electrode active material and a binder to prepare a positive electrode mixture layer-forming slurry; wherein the first step is conducted so that a ratio of a particle size at 10% accumulation to a particle size at 90% accumulation, which are based on a particle size distribution measurement of the conductive material, is 10 or more and 200 or less.

An LED tube lamp is disclosed. The LED tube lamp includes a lamp tube, a first external connection terminal and a second external connection terminal coupled to the lamp tube and for receiving an external driving signal, a rectifying circuit coupled to the first external connection terminal and the second external connection terminal and configured to rectify the external driving signal to produce a rectified signal, a filtering circuit coupled to the rectifying circuit and configured to filter the rectified signal to produce a filtered signal, an LED module coupled to the filtering circuit and configured to receive the filtered signal for emitting light; and a conduction-delaying circuit coupled to the rectifying circuit and comprising a conduction-delaying device, wherein the conduction-delaying circuit is configured such that when the external driving signal is initially input to the LED tube lamp, the conduction-delaying device is in an open-circuit state, and then the conduction-delaying device will enter a conducting state when voltage across the conduction-delaying device exceeds the conduction-delaying device's trigger voltage value, wherein the conducting state of the conduction-delaying device causes the LED module to conduct current for emitting light.

The invention provides a miniaturized inverted-E-shaped groove type ultra wide band millimeter wave microstrip antenna. The antenna comprises a square medium substrate (1), a grounding surface (2) disposed at one side of the square medium substrate, a radiation patch (3) disposed at the other side of the square medium substrate, and a feed line (7). The antenna is characterized in that the outer contour of the radiation patch is rectangular-shaped, the radiation patch is provided with an inverted-E-shaped groove (4) and two fillet rectangular-shaped grooves (5), and the two fillet rectangular-shaped grooves are disposed below the inverted-E-shaped groove. The antenna has the advantages of good radiation features, high gain, small dimension, low profile, easy conformation, easy integration, simple processing, low cost and the like, thereby being quite suitable for 5G mobile communication large-scale networking.

The invention provides a processing system for waste cables. A cutter can cut waste power cables on a conveyor belt through vertical reciprocation; a conveying device is arranged on a discharge side of the conveyor belt and used for conveying the cut waste power cables into a smashing device; the smashing device comprises a vibrating screen, an upper smashing mechanism and a lower smashing mechanism, and the vibrating screen is located between the upper smashing mechanism and the lower smashing mechanism and can reciprocate vertically; a lower separating device is located below a discharge port of the smashing device and used for separating copper grains and rubber grains falling from the discharge port of the smashing device; an upper separating device is located above the lower separating device and used for removing magnetic metal impurities from the copper grains and the rubber grains when the copper grains and the rubber grains are separated by the lower separating device. The processing system has the effects of being high in continuity, short in processing period, convenient to operate and high in automation degree, and purity of the recovered copper grains and rubber grainsis high.

The invention provides a preparation method of a visible light catalyst. The preparation method comprises the following steps: weighing tetrabutyl titanate, ethanol, hydrazine hydrate and AgNO3, dispersing the tetrabutyl titanate in the ethanol, adding N2H4.H2O, ultrasonically dispersing in icy water bath for 0.5 to 1.5 h, forming TiO2 precursor sol, transferring the TiO2 precursor sol into a hydrothermal kettle, adding AgNO3 into the hydrothermal kettle at an ultrasonic state, reacting for 6 to 10 h at 160 to 200 DEG C, and obtaining the anatase TiO2/Ag visible light catalyst. Oxygen vacancyformed inside the TiO2 prepared by virtue of the reduction of N2H4.H2O is synergistic with Ag, so that the absorption spectral range of a sample is enlarged, the propagation rate and separation efficiency of photon-generated carrier can be improved, and the visible light catalytic efficiency can be increased. The oxygen vacancy is separately formed inside TiO2 and nano silver corresponding to thevisible light is carried on the surface of TiO2 by virtue of in-situ reduction reaction, and the preparation method is simple and easy to control.

The invention relates to a low temperature optical system support device with high heat insulation efficiency and small thermal stress influence. In the device, a support inner ring is fixedly connected with a second heat insulation ring through three second support blocks which are uniformly distributed at the periphery of the support inner ring; the second heat insulation ring is fixedly connected with a first heat insulation ring through three transition blocks which are uniformly distributed at the periphery of the second heat insulation ring; and the first heat insulation ring is fixedlyconnected with a support outer ring through three first support blocks which are uniformly distributed at the periphery of the support outer ring. By the support device with a dual glass reinforced plastic annular structural form, a heat conduction path is prolonged, the thermal resistance between a high temperature end and a low temperature end is increased, and the heat insulation efficiency ofthe component is greatly improved; and as a flexible link in the structural component, the glass reinforced plastic annular structure bears main thermal deformation, reduces applied force acting on an optical system, ensures the precision of the optical system and improves the detecting capability of the optical system.

An LED tube lamp with overvoltage protection capability is provided. The LED tube lamp includes a lamp tube, two external connection terminals, a rectifying circuit, a filtering circuit, an LED module, and a protection circuit. The protection circuit is coupled between two input terminals of the LED module and configured to perform overvoltage protection when determining that a voltage level between the two input terminals of the LED module reaches or is higher than a predefined voltage value, wherein the protection circuit includes a diode and the predefined voltage value is in a range of about 40V to about 600V.

The embodiment of the invention discloses an off-road vehicle with a rear engine and a using method thereof, and relates to the technical field of vehicles; the off-road vehicle comprises a chassis, an engine, a gearbox, a transfer case, a front axle and a rear axle, wherein the bottom end of the engine is arranged at the rear part of the chassis, the front end of the engine is provided with the gearbox, the engine is in transmission connection with the gearbox, the front end of the gearbox is connected with the input end of the transfer case through a first transmission shaft, a first outputend of the transfer case is connected with the front axle through a second transmission shaft, and a second output end of the transfer case is connected with the rear axle through a third transmissionshaft. A power transmission system comprising the engine and the gearbox is arranged behind the tail of the off-road vehicle, thereby facilitating the reasonable arrangement of the chassis equipmentof the whole vehicle; the center of gravity of the vehicle mass is reasonable, and the braking forward inclination can be effectively reduced, so that the space at the bottom of a cab positioned at the front part of the vehicle is more spacious, and the riding comfort is improved; since the occupants are mainly concentrated in the front and middle of the vehicle, so the occupants are less affectedby engine noise.

A gas sensor is provided. The gas sensor includes a substrate, a plurality of electrodes formed on the substrate, and a metal layer formed on the substrate and the electrodes. The metal layer includes a plurality of first molecules doped with a plurality of second molecules. Each of the first molecules includes a metal particle and a plurality of carbon chains connected to a surface of the metal particle. Each of the second molecules includes a conjugated structure.

The invention provides an inner side wall structure of a vertical low-temperature container and the vertical low-temperature container, wherein the inner side wall structure of the vertical low-temperature container comprises a metal corrugated pipe expansion joint, wherein a first end of the metal corrugated pipe expansion joint is fixedly connected with a room temperature end of the inner side wall of the vertical low-temperature container; a second end of the metal corrugated pipe expansion joint is fixedly connected with the low-temperature end of the inner side wall of the vertical low-temperature container. The side wall thickness of a neck pipe of the vertical low-temperature container is reduced through the metal corrugated pipe expansion joint; meanwhile, the conduction path is increased, so that the heat leakage along the neck pipe side wall is reduced.

The invention discloses a low-electric leakage electrolytic capacitor. The capacitor comprises a wound type capacitor assembly, a mixed type conductive medium and a packaging body; an anode foil, a cathode foil and an isolating membrane between the anode foil and the cathode foil are wound so as to form the wound type capacitor assembly; the mixed type conductive medium is impregnated in the woundtype capacitor assembly; the mixed conductive medium contains a conductive polymer and an ionic liquid; and the packaging body completely wraps the wound type capacitor assembly and the mixed type conductive medium. The low-electric leakage electrolytic capacitor of the invention has the superior characteristics of a solid-state low-electric leakage electrolytic capacitor and can alleviate an electric leakage condition.