15results about How to "Long lasting" patented technology

The utility model discloses a multifunctional good limb position placing pillow which comprises a lower limb pillow body with a second groove formed in the upper end face, an upper limb pillow body with the vertical section arranged in an inverted right trapezoid shape and a back pillow body with the vertical section arranged in a right trapezoid shape, and a first groove is formed in the long plane of the upper end of the upper limb pillow body. The inclined surface of the upper limb pillow and the inclined surface of the back pillow are mutually attached and stacked to form a combined pillow for placing the head of a patient or the healthy side lying position upper limbs, connecting assemblies are detachably connected between the two side surfaces of the right trapezoid of the upper limb pillow and the two side surfaces of the right trapezoid of the back pillow, and an arc-shaped groove is formed in the middle of the bottom plane of the back pillow; a waist and neck pillow is detachably connected to one side plane, far away from the inclined plane, of the upper limb pillow; one face of the waist and neck pillow is a plane, the other face of the waist and neck pillow is an arc-shaped convex face matched with the first groove, pressure sensors are embedded in the second groove, the inclined face of the back pillow and the first groove, and timers and alarms are embedded in one side face of the lower limb pillow, one side face of the upper limb pillow and one side face of the back pillow. And the whole body has the advantages of multiple functions, good body position treatment effect and high applicability.

The invention relates to the technical field of mortar preparation, in particular to high-performance waterproof dry-mixed mortar and a preparation method thereof. The high-performance waterproof dry-mixed mortar is prepared from the following raw materials in parts by weight: 300 to 400 parts of cement, 550 to 650 parts of quartz sand, 1.5 to 3.0 parts of silane waterproof agent, 15 to 25 parts of hydrophobic redispersible latex powder, 0.2 to 0.5 part of water-retaining thickening agent, 0.5 to 1.5 parts of polycarboxylic acid water reducing agent, 3 to 8 parts of thixotropic lubricant, 0.3 to 1 part of coagulation accelerator, 20 to 50 parts of superfine filler and 0.5 to 1.5 parts of polypropylene fiber. The technical problem of non-uniform dispersion of trace components in high-performance mortar production is solved through the process combination of premixing the water-retaining thickening agent, the polycarboxylate superplasticizer, the thixotropic lubricant and the coagulant and then performing staged low-speed main mixing on the mixture and other raw materials; the effects of excellent waterproof and anti-seepage performance, excellent mechanical property and bonding strength, excellent crack resistance and high durability are achieved.

This utility model discloses an outdoor remote-controlled searchlight device, including a base with battery packs detachably mounted on both sides of the base. A hollow column is fixedly mounted on the upper end of the base, and a hollow lifting rod is movably connected to the upper end of the column. A lighting component is mounted on the upper end of the lifting rod via a multi-directional adjustment assembly. The lighting component includes a housing, with a control panel fixedly mounted on one side and a searchlight head rotatably mounted on the other side. A flipping drive mechanism is provided inside the housing. The multi-directional adjustment assembly includes a mounting platform fixedly mounted on the upper end of the lifting rod, with the housing rotatably mounted on the upper end of the mounting platform. A rotation drive mechanism is matched between the housing and the mounting platform. A support assembly is mounted on the column. By setting the flipping drive mechanism, the searchlight head can achieve vertical flipping from 0 to 180°. With the rotation drive mechanism, the housing can rotate horizontally within the range of 0 to 360°, greatly expanding the lighting range and meeting the diverse needs for light direction in different scenarios.

This utility model discloses a heat preservation device for flower cultivation, including a heat preservation box. The heat preservation box includes a storage cavity and a water cavity. Water is placed inside the water cavity, and electric heating plates are fixedly connected to both sides of the inner wall of the water cavity. This utility model adopts a structural design in which the heat preservation box has a storage cavity and a water cavity. The water in the water cavity is heated by the electric heating plates. Through the thermal conductivity of water, heat can be evenly transferred to the left, right, top, bottom, and back of the storage cavity, which to a certain extent avoids the problem of uneven local temperature caused by traditional single biological lamp heating. With the heat preservation box and the heat preservation cover plate fixedly connected to the surface of the heat preservation box, a multi-layer heat preservation structure is formed, which can significantly slow down the transfer rate of internal heat to the outside. This device has the advantages of good heat preservation effect, maintaining a suitable internal temperature for a long time, and flexible adjustment of the internal temperature of the device.

The present application relates to the field of temperature measurement, in particular to a kind of metal organic framework crystal material and its preparation method and application.The present application provides a kind of metal organic framework crystal material, wherein the crystal material is connected body 2,6-di (2,4-dicarboxyphenyl) -4- (phenyl) pyridine and Zn (II) connected with the crystal material with periodic three-dimensional network structure.The metal organic framework crystal material provided by the present application still keeps the afterglow characteristic under the condition of smaller particle size, and the charging time is shorter;At the same time, the decay time of the metal organic framework crystal material of the present application is seconds, and the light source only needs ordinary ultraviolet semiconductor light source, and the camera can record the time / color of afterglow decay, as the basis for temperature judgment, which greatly reduces the temperature measurement cost and simplifies the measurement process;In addition, the metal organic framework crystal material of the present application can be synthesized below 120 DEG C, which reduces the production cost and danger.

The application provides an asymmetric anti-adhesion composite film and a preparation method and application thereof. The composite film comprises a bioactive layer and an electrospun fiber layer, and the electrospun fiber layer comprises a first fiber layer and a second fiber layer. The first fiber layer comprises fibers with a first diameter. The second fiber layer comprises fibers with the first diameter and fibers with a second diameter, and the first diameter is larger than the second diameter. The composite film has strong mechanical and degradation resistance properties, and is suitable for anti-adhesion applications of various moving organoids or tissues, so that the composite film still has structural integrity and functional integrity for a long time in these environments. One side of the composite film has adhesive fibers, and has stronger adhesion in a wet state, so that the composite film cannot be easily displaced when applied to moving organoids or tissues.

This application discloses a power supply device, a resonant converter circuit, and a control method thereof. The circuit includes: an inverter circuit, a resonant circuit, a rectifier circuit, a switch, and a second inductor. The inverter circuit is connected to the resonant circuit and is used to convert direct current (DC) into alternating current (AC) and output it to the resonant circuit. The resonant circuit is connected to the rectifier circuit and is used to resonate and convert the AC power and output it to the rectifier circuit. The rectifier circuit is used to output DC power. The resonant circuit includes a first inductor and a first capacitor, which are connected in series with the first inductor, the first capacitor, and the second inductor. The switch is connected in parallel with the second inductor, and the rectifier circuit is connected to both ends of the second inductor. Through this application embodiment, the output voltage gain of the resonant converter can be increased without affecting the efficiency of the resonant converter, thereby extending the hold-up time.

The utility model relates to a portable instant available cold compress patch, which comprises an application patch body and a bandage, the application body comprises an application body, a liquid storage part, a refrigerant containing part, a diaphragm layer and at least one separation belt. The patch body is divided into a plurality of independent parts corresponding to the human body structure by the separation belts. The application body is of a double-layer structure, the diaphragm layer is arranged between the double-layer structure of the application body, and a refrigerant used for refrigeration and a solution used for reacting with the refrigerant are packaged in the refrigerant containing part and the liquid storage part respectively and are isolated by the diaphragm layer. When the portable instant available cold compress patch is used, the diaphragm layer is broken by forcibly extruding, so that a solution in the liquid storage part is mixed with a refrigerant in the refrigerant accommodating part, and the solution reacts with the refrigerant to dissolve a heat effect, so that the temperature is quickly reduced, and a relatively low temperature is provided for a human body for cold compress.

This invention relates to an adaptive annular packer tool. The central tube is cylindrical with four inlet holes evenly distributed circumferentially near the left end, and a triangular thread on the outer side of the center. The sleeve is annular, with six pin holes evenly distributed axially on the right end. The left retaining ring is cylindrical with a pin groove on the outer side of the center, a triangular thread on the inner side of the center, and a 45° conical surface on the inner right end. The rubber sleeve is annular, with a larger outer diameter at the center than at the sides, and 45° conical surfaces at both ends. Each right retaining ring is fan-shaped; ten right retaining rings evenly distributed axially form an annulus, with a tubular structure on the right end containing a spring. The spring is located inside the tubular structure on the right end of the right retaining ring and is compressed during installation. Ten holes are evenly distributed circumferentially on the left end of the end ring. This adaptive annular packer tool can achieve permanent packing of irregular annular shapes.

This utility model discloses a protective gear for sports training, relating to the field of sports protective gear technology. It includes a wear-resistant protective plate, with a protective component on one side and adjustable limiting components on both sides. A snap-fit ​​component is provided on one side of each adjustable limiting component. The protective component includes a honeycomb plate embedded in one side of the wear-resistant protective plate, a breathable plate fixedly installed on one side of the honeycomb plate, and a hemispherical protrusion fixedly installed on one side of the breathable plate. The adjustable limiting component includes elastic bands fixedly installed on both sides of the wear-resistant protective plate. This utility model discloses a protective gear for sports training. Through the adjustable limiting component and snap-fit ​​component, the fixed length of the protective gear can be adjusted according to the actual limb size during use. Even during prolonged use, the elastic bands can be stored between the skin and the protective gear to avoid accidental contact and reduce loosening of the protective gear, maintaining proper wearing and minimizing the impact on training.

The application relates to the technical field of biomaterials, in particular to a silk fibroin-based biomaterial containing growth factors for injection and a preparation method. The silk fibroin and sodium hyaluronate are cross-linked, the gel is freeze-dried to ensure the stability of the product, the SF-HA freeze-dried powder is compounded with cross-linked sodium hyaluronate as a dispersion medium to form a composite gel particle system, the composite gel is sterilized, and then is blended with growth factors to obtain the silk fibroin-based biomaterial, in which the silk fibroin particles are wrapped by the hyaluronic acid cross-linked lattices. The silk fibroin-based biomaterial is prepared, the degradation period of the product is prolonged, and meanwhile, the uniformity, biocompatibility and active ingredient reservation of the material are considered.

The invention discloses a shaping hair straightener. The shaping hair straightener comprises an upper hair clamping assembly and a lower hair clamping assembly, wherein the rear end of the lower hair clamping assembly is hinged to the rear end of the upper hair clamping assembly; the upper hair clamping assembly and the lower hair clamping assembly each comprise a refrigeration module and a heating module, the refrigeration modules are provided with liquid cooling or air cooling heat dissipation systems, and therefore rapid hair straightening and shaping are achieved. According to the shaping hair straightener, the heating modules and the refrigerating modules are arranged on the upper hair clamping assembly and the lower hair clamping assembly front and back, in the hair straightening process, the heating modules firstly conduct heating shaping, the refrigerating modules conduct refrigerating shaping, heating and refrigerating are conducted front and back at short intervals, the shaping time of straight hair is shortened, the maintaining time is longer after shaping, and the shaping effect is better. And meanwhile, the refrigeration module is used for rapidly cooling the heated hair, so that damage to the hair caused by too high hair straightening temperature can be avoided, and the natural, straight, smooth and glossy hair straightening and shaping effects are achieved.

The invention relates to the technical field of communication equipment, in particular to a portable explaining device for travel, which comprises a shell, a host unit is fixedly connected in the shell, the host unit is provided with a communication unit, the shell is fixedly connected with a button switch, and the button switch is used for generating a starting instruction when a user presses for one time. The communication unit is arranged in the shell to trigger the communication unit to enter a continuous working state, two storage batteries are arranged in the shell, the storage batteries are electrically connected with the host unit, the shell is fixedly connected with a plurality of cylindrical shells, trigger switches are fixedly connected in the cylindrical shells, and the trigger switches are used for generating a starting instruction when a user continuously presses the shell. Therefore, the communication unit is triggered to enter a continuous working state. According to the invention, by setting a double-control mechanism of the button switch and the trigger switch, transmission mode switching of'start and stop by short pressing and automatic maintenance 'is realized, and the problem of voice interruption caused by the fact that a traditional tourism explainer depends on continuous pressing of a PTT key is effectively solved.

The invention is directed to a process water analyzer (10) for automatically analyzing a parameter of a water sample, comprising a process liquid reservoir tank (70,72) with a process liquid (70',72'), whereas the process liquid reservoir volume (V70,V72) in the reservoir tank (70,72) defines a reservoir liquid level (170,172) at a reservoir liquid level height (h70, h72), a dosage chamber (30) fluidically connected to the process liquid reservoir tank (70,72) and being positioned fluidically downstream of the process liquid reservoir tank (70,72), a positive displacement dosage pump (20) fluidically connected to the top of the dosage chamber (30) for sucking the process liquid (70', 72') into the dosage chamber (30), whereas an air cushion (27) is always provided vertically between the dosage pump (20) and a liquid column upper level (I) of a process liquid column (lc70,lc72) with an effective vertical liquid column length (c70,c72) between the reservoir liquid level (170,172) and the liquid column upper level (I), a gas pressure sensor (60) sensing the gas pressure (P) of the air cushion (27), and a liquid reservoir volume control unit (100) calculating the actual process liquid reservoir volume (V70,V72) on the basis of the gas pressure (P) provided by the gas pressure sensor (60) and the known vertical height (h) of the liquid column upper level (I). This arrangement makes a liquid level sensor for the process liquid reservoir tank(s) redundant.

This invention discloses a TCN-assisted GRU-based integrated navigation method for GNSS interruption environments, belonging to the field of integrated navigation technology. First, a TCN-assisted GRU temporal prediction network model is constructed. The GRU master predictive encoder extracts global temporal features and outputs GNSS position increment prediction results. During the training phase, the TCN auxiliary feature encoder extracts local temporal features from subsequences, guiding the GRU to learn stable feature representations through consistency constraints. During the effective GNSS period, IMU data and INS estimation states are collected to train the model. When GNSS is interrupted, the current and several previous periods' data are input into the trained model to predict pseudo-GNSS position increments. These are recursively accumulated to obtain the pseudo-GNSS position, and a Kalman filter is introduced to correct the INS calculation results. This invention effectively improves the positioning accuracy and robustness of integrated navigation under GNSS interruption environments.