269results about How to "Reduced risk of rupture" patented technology

The invention discloses a metal-oxide gas sensor based on MEMS (Micro-Electro-Mechanic System) and a preparation technology thereof. The gas sensor is characterized by comprising an Si substrate, an insulating layer, two thin-film resistor heating elements, a rectangular micro array, a pair of sensitive electrodes and a metallic oxide three-dimensional multi-level nano-structure produced on the rectangular micro array, wherein partial Si at the lower part of the Si base is removed in an anisotropic manner through wet etching; at the front of the gas sensor, the heating elements and the sensitive electrodes are arranged in a central symmetry and spiral manner, the rectangular micro array is arranged in the center, and the heating elements, the sensitive electrodes and the rectangular micro array are positioned on the same layer; the heating elements can also serve as temperature detecting elements. According to the invention, the nano-structure synthetized by adopting a hydrothermal method can realize the bridge type electrical connection through the mutually crossed dendritic structures, and is finally connected with the sensitive electrodes; the arrangement manner of the rectangular micro array is changed, and nano-materials of different types are replaced, so that the metal-oxide nano gas sensor based on different measuring circuits and sensitive materials of different types can be processed.

The invention provides a balloon guide catheter, and in particular relates to the technical field of medical apparatus and instruments. The catheter is a composite pipe composed of an outer tube, an inner tube, and a suction tube positioned at the far end of the catheter which are coaxial, and a flexible balloon capable of realizing the full or contraction state is connected to the outer layer ofthe far end of the outer tube; an annular cavity between the inner tube and the outer tube forms a balloon filling cavity; the far end of the inner tube is welded to the near end of the suction tube;an inner cavity of the inner tube is connected with the inner cavity of the suction tube in series to form a guide cavity of the catheter, namely, a thrombus suction cavity; a main inner hole of a Y-shaped joint communicates with the inner cavity of the inner tube to form a wire guide cavity and the thrombus suction cavity; and the axis of side holes of the Y-shaped joint and the axis of the maininner hole of the Y-shaped joint have intersection at the near end direction of the catheter to form an acute angle, and the side holes of the Y-shaped joint and a gap between the outer wall of the inner tube and the inner wall of the outer tube communicate to form the balloon filling cavity. For the balloon guide catheter, during the interventional treatment process, blood flow can be blocked, sothat small broken thrombus is prevented from blocking the far end, and meanwhile, large thrombus blocks at the near end can be sucked, so that the surgery effect is greatly improved.

A hollow core photonic crystal fiber (PCF) comprising an outer cladding region and 7 hollow tubes surrounded by the outer cladding region. Each of the hollow tubes is fused to the outer cladding to form a ring defining an inner cladding region and a hollow core region surrounded by the inner cladding region. The hollow tubes are not touching each other, but are arranged with distance to adjacent hollow tubes. The hollow tubes each have an average outer diameter d2 and an average inner diameter d1, wherein d1/d2 is equal to or larger than about 0.8, such as equal to or larger than about 0.85, such as equal to or larger than about 0.9.

Also a laser system is disclosed.

The invention discloses a wireless detecting device for rotating speed and abrasion of a hobbing cutter of a shield machine. The wireless detecting device comprises a protecting cover, wherein the protecting cover is arranged on a cutter disc; a first nut, a second nut and a battery are arranged in the protecting cover; the first nut is connected with a first tube sleeve; the first tube sleeve penetrates in a third nut fixed on a cutter box; a hobbing cutter self-rotation speed sensor is arranged on the top of the first tube sleeve; the second nut is connected with a second tube sleeve; an outer barrel is arranged on the top of the second tube sleeve; a hobbing cutter ring abrasion inductor is arranged in the outer tube; a cover plate is arranged on the top of the outer barrel; a fixing groove is formed in the protecting cover; and a wireless transmission antenna is arranged in the fixing groove. The wireless detecting device is simple in structure, small in size, convenient to mount, high in efficiency and reliable in operation, and can be directly mounted at a position of the hobbing cutter of the cutter disc; and the hobbing cutter ring abrasion inductor and the hobbing cutter self-rotation speed sensor can be positioned accurately through an adjusting nut, so that hobbing cutter abrasion and rotation can be wirelessly detected in real time, and the risk of breakage of the cutter disc due to excessive abrasion of the hobbing cutter is avoided effectively.

The invention belongs to the technical field of the low-cost preparation of high-performance composite materials and relates to a gradient prepreg having an air guiding function in layer and good process operability and a preparation method of the gradient prepreg. The compound technology parameters in a prepreg preparation process are regulated and controlled, the dipping degree of resin to dry fibers is controlled, the resin is symmetrically distributed in a gradient manner in the middle layer in the thickness direction of the prepreg, the fiber is infiltrated, meanwhile, an air exhaust channel is pre-formed in a prepreg layer, and the gradient prepreg with an air guiding passage in layer can be prepared; the gradient prepreg can be formed and solidified by an out-of-autoclave process, and the forming process cost of the composite material parts can be greatly reduced.

The present invention provides a display panel and an electronic device. The display panel comprises a flexible substrate and a first support plate, wherein the flexible substrate comprises a first area and a bending area disposed outside the first area, and the first support plate is used for supporting the flexible substrate and is disposed on the back surface of the first area and the back surface of a portion of the bending area. According to the display panel and the electronic device, one side of the first support plate towards the bending area is arranged to a first curved surface structure through a first intermediate portion in the first support plate and the bending area, thus the bending stress is reduced and the risk of metal trace breakage in the bending area is lowered.

The invention provides a battery diaphragm, a preparation method thereof and a battery comprising the battery diaphragm. The battery diaphragm comprises a ceramic layer, and a first polymer electrolyte layer and a second polymer electrolyte layer which are arranged on two sides of the ceramic layer, wherein the first polymer electrolyte layer and the second polymer electrolyte layer respectively and independently comprise components in percentage by weight, 10-87% of polymer, 2-30% of ceramic powder, 1-30% of lithium salt and 10-30% of plasticizer. The battery diaphragm is prepared by dispersing materials of the first polymer electrolyte layer and the second polymer electrolyte layer in solvent to prepare the slurry, and then forming a film with the ceramic layer in sequence. The battery diaphragm is advantaged in that the battery diaphragm has a relatively high liquid absorption rate, ionic conductivity and elongation at break, can effectively reduce the risk of diaphragm rupture, andimproves the rate capability and cycle performance of the battery.

A packaging laminate for forming packaging containers has a core of paper or cardboard, and a first side forming the outside of a packaging container and a second side forming the inside of the packaging container. The packaging laminate is provided with crease lines defining folding locations usable during forming of the packaging containers, and each crease line defines a linear protrusion on one side of the laminate and a corresponding linear depression on the opposite side of the laminate. The packaging laminate is characterized in that at least one crease line, which forms a corner edge of the packaging container, has its linear protrusion on the first side of the packaging laminate.

The invention relates to an intracranial aneurysm interventional closure treatment device. The intracranial aneurysm interventional closure treatment device includes a closure device, a delivery device, and a closure device fixing frame; the closure device fixing frame is circular tube-shaped, and the wall of the circular tube is of a multi-hole net structure; the closure device includes a closure device outside-aneurysm part, a closure device fixing part, and a connection part connecting the closure device outside-aneurysm part and the closure device fixing part; the closure device outside-aneurysm part is a disc-shaped closure piece and tightly attaches to the inner wall of a support or the inner wall of a blood vessel; the closure device fixing part is a circular table-shaped closure piece which tightly attaches to the closure device fixing frame; and a far end of the closure device outside-aneurysm part contracts inward and is connected to the closure device fixing part. During closure, the connection part of the closure device is embedded into net holes of the closure device fixing frame, the closure device fixing part is positioned outside the wall of the closure device fixing frame, and the closure device outside-aneurysm part is positioned inside the wall of the closure device fixing frame. The closure treatment device can achieve complete cover of an aneurysm neck, induce thrombosis in the aneurysm, and achieve complete embolism of the aneurysm.

The invention discloses a chip-grade LED (Light Emitting Diode) packaging device with a controllable light emitting angle and a packaging process. According to the LED packaging device, first white wall adhesive layers are arranged on side faces of an LED chip, a diffusion layer and a fluorescent adhesive layer and are used as reflection surfaces; the reflection surfaces with different shapes can be designed aiming at requirements on different light emitting angles, so that the LED packaging device with the controllable light emitting angle is obtained; furthermore, the diffusion layer is arranged between the LED chip and the fluorescent adhesive layer, and the diffusion layer has a refractive index higher than that of a fluorescent adhesive; the difference between the refractive indexes of the LED chip and the fluorescent adhesive layer is reduced; the refractive indexes of the LED chip, the diffusion layer and the fluorescent adhesive layer have a certain gradient and the light emitting efficiency of the LED chip is improved, so that the luminous flux of the device is improved; the refractive indexes of diffusion powder and a packaging adhesive in the diffusion layer are different, and the condition that light emission of blue light of the LED chip is not uniform can be improved, so that the space color uniformity of the device is improved; and the design of a concave groove and white wall structure is adopted, so that the reliability problem of a product is greatly improved.

A vascular stent and a method for manufacturing same. The vascular stent has a mesh-shaped tubular structure. The mesh-shaped tubular structure is formed by braiding a metal wire and a biodegradable wire. The vascular stent has the following advantages: First, the stent has a thinner wall, facilitating implantation of the vascular stent into a narrower blood vessel and reducing the risk of restenosis after the stent is implanted in a small blood vessel. Secondly, the rejection caused by the presence of foreign bodies in the human body is reduced, and endothelialization of tissues is promoted. Thirdly, the vascular stent is allowed to have a greater mesh density, so that hemodynamics at the lesion site in the blood vessel can be improved after the vascular stent is implanted in the human body.

A method of maintaining routing tables at nodes of an overlay network, where a routing table of a given node contains, for each of a set of neighbouring successor and predecessor nodes, a mapping between an overlay network address of the node and a physical locator of the node. The method comprises, upon or immediately prior to departure of a node from the overlay network, sending a Leave request from the departing node (or one of the neighbouring nodes of the departing node aware of the departure) to each neighbouring node (or each other neighbouring node of the departing node), indicating the departure and containing one or more mappings for nodes not contained within the routing table of the recipient node. Each neighbouring node (or each other neighbouring node) receives the Leave request and uses said mapping(s) to update its routing table.

The invention discloses a dynamic pressure regulating device and method for an anode gas supply loop of a fuel cell. By controlling various valves to work cooperatively, the anode pressure of the fuelcell can be stabilized within a proper range in the steady-state, loading, deloading and exhausting stages, so that the anode pressure can be stably controlled, the hydrogen flow can be quickly supplemented, and the characteristics of high safety and low cost are achieved.

The invention provides a capacitor structure and a manufacturing method thereof, and the method comprises the steps: forming an etching stop layer, a lower sacrificial layer, a central supporting layer, a top sacrificial layer, a first supporting layer, and a stress relieving layer on a bottom substrate, wherein the bottom substrate is provided with a contact hole; etching the stress relieving layer based on a first pattern mask to form a stress relieving part; forming a second supporting layer on the first supporting layer and the stress relieving part, wherein the first supporting layer andthe second supporting layer wrap the stress relieving part to form a top supporting layer; etching the top supporting layer based on the second pattern mask to form a primary capacitance hole; forminga lower electrode layer at least on the surface of the inner wall of the primary capacitor hole; etching at least the top supporting layer based on a third pattern mask to form an etching opening; and removing the top sacrificial layer, a portion of the central supporting layer, and the lower sacrificial layer based on the etch opening to form an ultimate capacitance hole. According to the invention, the problem of low stability of the capacitor support layer in the existing capacitor structure is solved.

The invention relates to the field of microalgae culture photobioreactors, in particular to a soft plate type photobioreactor. The soft plate type photobioreactor comprises flow passages, a reactor culture solution inlet (1), a reactor culture solution outlet (2), a body film (5), rib plates (6) and pulling strips (7). The flow passages are partitioned by the rib plates (6); the reactor culture solution inlet (1) and flow passage culture solution inlets (8) form a reactor culture solution inlet cavity (10), and the reactor culture solution outlet (2) and flow passage culture solution inlets (9) form a reactor culture solution outlet cavity (11); the pulling strips (7) are arranged in the reactor culture solution inlet cavity (10) and/or the reactor culture solution outlet cavity (11). The soft plate type photobioreactor has the advantages that the integral structure of the photobioreactor is optimized; the service life of the soft plate type photobioreactor is prolonged; risks of breakage of the photobioreactor due to ageing, stress and the like are reduced.

The invention discloses an electronic detaching and etching covered stent for the treatment of intracranial aneurysm. The electronic detaching and etching covered stent comprises a stent main body with a cylindrical net structure, wherein the surface of the stent middle segment of the stent main body is packaged with a plastic cover, and one end of the stent main body is also connected with a push device; the push device comprises a guide wire and a delivery guide tube arranged on the guide wire in a sleeving manner, and the front end of the guide wire is welded at one end of the stent main body with thermal fusing metal. The electronic detaching and etching covered stent can enable intracranial aneurysm haemodynamics to change, promote thrombogenesis and thrombus organization in aneurysm, achieve the purpose of anatomically reconstructing parent artery, and keep the parent artery and branches unobstructed. The electronic detaching and etching covered stent has the advantages of being simple in structure, easy to operate, precise in positioning, high in safety and total obliteration rate and low in recurrence rate and can be recycled, so that the surgery cost is reduced.

A method and apparatus are disclosed for testing the integrity of a portion of flexible pipe body. The method includes the steps of, via at least one port in an end fitting assembly in which an end ofa portion of flexible pipe body is terminated, monitoring at least one parameter associated with an annulus region disposed between layers of the flexible pipe body, the annulus region being connected to the port by a connecting passageway.

The invention discloses a stable high-restraint high-frequency small-amplitude boundary local die operation method suitable for a fusion reactor. On the condition of optimized high inner resistance, high boundary safety factor, high polarized specific voltage and high triangulation, high plasma energy storage and high plasma core restraint are obtained, and small-amplitude high-frequency boundary local die is obtained. The high core restraint facilitates sustaining of high parameter of the plasma core part and facilitates realization of a fusion reaction. A high-frequency small-amplitude boundary local die facilitates settlement of a first wall transient heat load problem, and furthermore has relatively high particle eliminating capability, thereby preventing a plasma impurity core polymerization problem. The operation parameter interval which is required by the method is compatible with the operation interval of a future fusion reactor. Furthermore stable state operation of the plasma can be realized. The stable high-restraint high-frequency small-amplitude boundary local die operation method has low breakage risk, excellent robustness and high repeatability. The stable high-restraint high-frequency small-amplitude boundary local die operation method has a relatively ideal operation mode which may be used for the reactor grade.

The invention discloses a vertical drilling machine comprising a glass feeding frame, a stand column and a glass discharging frame which are arranged in sequence. A drilling part is arranged on the stand column, the drilling part is connected to the stand column in a sliding manner, the drilling part comprises two sets of drilling platforms which are symmetrically arranged, each drilling platformcomprises a supporting plate which is connected with the stand column in a sliding manner up and down and is vertically arranged, the sides, away from the stand column, of the supporting plates are fixedly connected with a supporting platform, the supporting platform is perpendicular to the supporting plates, and the supporting plates are perpendicular to the glass feeding frame. A drilling motoris connected to the upper end of the supporting platform in a sliding manner. Since the glass feeding frame is arranged, two position detection devices are arranged on the glass feeding frame, and therefore glass drilling precision is improved. The reliability of the drilling platform is improved, wear amount of a guide rail is reduced, the deviation of the position of the drilling motor caused byexcessive wear of one side of the guide rail is avoided, and the drilling precision and the stability of the drilling platform are improved.

The invention provides a display panel and electronic equipment. The display panel comprises a flexible substrate, a luminous layer and a plurality of metal wires, wherein the flexible substrate is provided with a first area, a flexible area and a second area; the luminous layer is arranged on the substrate, and the luminous layer comprises a first luminous area positioned on the first area; the metal wires are arranged in the flexible area and is electrically connected with the first area and the second area, the distribution densities, in each unit area, of the metal wires inside the flexible area are different, the second area is bent to the back side of the first area through the flexible area, and the metal wires extend in a roundabout curve mode.