994results about How to "Prevent intrusion" patented technology

A portable electronic device may have acoustic ports such as microphone and speaker ports. Acoustic devices such as microphones and speakers may be associated with the acoustic ports. An acoustic port may have an opening between an interior and exterior of the portable electronic device. The opening may be covered by a metal mesh. An acoustic fabric may be interposed between the metal mesh and the opening. The opening may be formed from a hole in a glass member having outer and inner chamfers. A microphone boot may be provided that forms front and rear radial seals with a housing of the device and a microphone unit respectively. The microphone boot may also form multiple face seals with the microphone unit. A speaker for the speaker port may be enclosed in a sealed speaker enclosure. The speaker enclosure may have a pressure-equalizing vent slit covered with an acoustic mesh.

PCT No. PCT/JP97/04203 Sec. 371 Date May 20, 1999 Sec. 102(e) Date May 20, 1999 PCT Filed Nov. 19, 1997 PCT Pub. No. WO98/22155 PCT Pub. Date May 28, 1998The present invention offers an artificial tube for nerve which can remain in the body until the nerve regenerates while does not remain as a foreign body in the body following nerve regeneration, and which induces axons regenerated from severed nerve stumps, can promote infiltration of blood capillaries from the body and regeneration of nerve tissue. The present invention comprises a tube 10 or 20 having coating layers 12, 13 or 22, 23 composed of gelatin or collagen on the inner and outer surfaces of a tube 11 or 21 composed of a material being biodegradable and absorbable in vivo, and a collagen body 30 or 40 having cavities 32, 33 or 41 which pass through said tube so as to be substantially parallel to the axis of said tube; wherein, said cavities are filled with a matrix gel.

A plurality of organic EL devices are formed first on a substrate. Next, a film of a sealing agent is formed over the outer periphery of a lower surface (color filter side) of a sealing plate. Then, a sealing agent is dropped onto a central portion of the sealing plate. After that, the sealing plate and the substrate are laminated at a predetermined pressure in a vacuum chamber in a vacuum, and then the vacuum chamber is released from its vacuum state. The substrate and the sealing plate are removed from the vacuum chamber, and the sealing agents between the substrate and the sealing plate are cured by the curing methods suitable for the respective materials.

The invention discloses a display panel and a fabrication method. The display panel comprises a substrate, a display component and a thin film package layer, wherein the display component is arranged on the substrate, the thin film package layer is arranged on the display component and comprises at least one first package material layer and at least one second package material layer, the refractive indexes of the first package material layer and the second package material layer are different, a plurality of grooves are formed in the at least one first package material layer, and the grooves are filled with the second package material layer arranged above the first package material layer provided with the plurality of grooves. Through the technical scheme, the luminous efficiency of the display panel is improved, and the service lifetime of the display panel is prolonged.

The invention provides storage mildew-proof and moth-proof packaging hemp cloth and a preparation method thereof. The hemp cloth comprises green harmless storage protective agent and is prepared by taking common packaging hemp cloth as a material and adding 0.01-10wt% of storage protective agent. The preparation method comprises the following steps of: dissolving the storage protective agent in a solvent to prepare a solution, then impregnating the hemp cloth in the protective agent solution, removing the solution after the hemp cloth sufficiently absorbs the solution, and drying; or dissolving the storage protective agent in the solvent, then uniformly spraying the protective agent solution on the hemp cloth and drying the hemp cloth after the hemp cloth sufficiently absorbs the protective agent solution to prepare the storage mildew-proof and moth-proof packaging hemp cloth. The storage hemp cloth is used for packaging tobaccos or crops, can realize the whole process dynamic and real-time protection of the tobaccos, the crops and the like in purchase, transport and storage processes, protect products from mildew and moths, effectively prevent the mildew and the moths from spreading between bags and prevent the tobaccos, the crops and the like which are soaked by rain water from mildewing. Besides, the invention has an important function for reducing environment pollution and hidden safety danger which are caused by common technologies.

An apparatus, and corresponding method, for management of fecal incontinence comprising a catheter having at least two electrodes and an inflatable balloon, a non-conductive sleeve surrounding the electrodes, and an alarm box, wherein the catheter is insertable into a rectal vault and is inflatable to serve as a block to passage of stool and wherein moisture sensed by the electrodes triggers the alarm box and thereby notifies a user that fecal material has entered the rectal vault.

The present invention provides a practical, multi-polar, in-line connector system for use in connecting implantable medical devices (IMD) and associated non-standard, low profile medical electrical leads. In addition, the present invention provides a system that uses tool less, frictional, sealed, compressive electrical connections for most or all of the electrical interconnections between an IMD and a low profile lead. A protective sleeve seals the lead connector to the non-standard port to prevent intrusion of body fluids therein. In addition, optional microchip-based circuitry coupled to the sleeve enables wireless communication and remote programming for diverse IMDs. Memory associated with the circuitry can store, update and reprogram a wide variety of information relevant to the IMD, the patient, and the attending physician, among others. For example, the microchip may be used to identify the lead type and characteristics, as well as other useful data.

The invention provides a composite repair material which facilitates surgical operation and realizes quick defect nerve bridging and composition, preparation and application of a stent made of the composite repair material. The composite repair material consists of a fibroin layer, a collagen layer and a high-molecular polymer layer which are sequentially arranged, and during application, the composite repair material is folded or wound to form the nerve bridging stent taking the fibroin layer as the inner layer, the collagen layer as the middle layer and the high-molecular polymer as the outer layer. The composite repair material and the stent made of the composite repair material adopt the layered arrangement and a specific three-dimensional design to bring the advantages of various repair materials into full play, and meanwhile, make up for the deficiencies of the various repair materials. During surgical operation, only suturing or bonding anastomosis of epineurium is required but not suturing of perineurium, so that the operation time of a defect nerve bridging operation is greatly shortened, the operation technical difficulty is lowered, and the security is improved.

The invention discloses a double-layer membranous tissue repair material and a preparation method thereof, wherein, a cell-free membranous biological derivative material is used as a surface layer, and a fibroblast is compounded in the interior of a biological support material to form a substrate, and then the surface layer and the substrate are combined in a chimeric way to form the double-layer membranous tissue repair material; a compact surface layer structure can effectively reduce the loss of water, electrolytes and protein from surface of wound, avoid the invading and the reproduction of bacteria to the impaired surface of wound as well as prevent the infection of the surface of wound, thus being beneficial to epitheliosis and epithelial growth; the substrate can directly repair the surface of wound, promote the ingrowth of cells around the surface of wound and the angiogenesis, induce the differentiation from stem cells to skin cells and quicken wound healing; compared with the existing products, the tissue repair material has the advantages of being capable of promoting the regeneration of skin, improving the elasticity, the flexibility and the mechanical abrasion resistance of skin after the surface of wound is healed, reducing hyperplasia of scar tissues, controlling the contracture, having excellent biocompatibility, increasing the success rate of transplant and improving the quality of healing; the invention has wide material resources and simple production method; the double-layer membranous tissue repair material prepared is applicable to the clinical treatment of skin defect caused by inflammation, ulcer, thermal burns, iatrogenicity and the like.

An automatic protective shutter system that is controlled by atmospheric and or human intervention conditions. The shutter consists of a net that can be deployed automatically to cover any opening in a building structure. The shutter net can withstand high winds such as are prevailing winds in a hurricane. The shutter net can also withstand any projectiles that are being encountered in a hurricane. The shutter also protects against the incidence of high ultraviolet UV rays and/or excessive light. The shutter net also detects any tampering by a burglar or vandalism to shut down the opening or to sound an audible alarm. The shutter system is also extremely useful as a shield against the intrusion of insects. The protective shutter system can be controlled locally or by a remote system. The remote system would include a computer system operating through the internet. All of the above can be detected by various sensors such a high wind sensors, ultraviolet sensors and proximity sensors. The shutter net itself has an established surface frequency that operates within tolerable limits to generate a signal when that frequency is disturbed or changed to indicate a disturbance.

The invention relates to the field of tunnel engineering construction, in particular to a control method of surrounding rocks in water-rich very-broken surrounding rock tunnel collapse sections. According to the control method, problems in the existing methods that managing circle is long, reinforcing range and effect are bad, secondary geological disasters are triggered easily because of deformation and cracking of exceeding clearance limit of preliminary bracing and the like are solved. The method includes the following steps: searching and analyzing factors leading to collapse and disaster degree, stabilizing exposed face of an accumulation body and dewatering and decompressing deep parts, strengthening supporting intensity in the collapse sections and influencing areas, outburst prevention filling and strengthening the collapse accumulation body, grouting reinforcing asymmetrical peripheral curtains, confirming an excavating method in grouting reinforcing collapse sections and primary supporting patterns, replenishing grouting in parts, excavating inverted arches, and constructing second liners. The control method of surrounding rocks in water-rich very-broken surrounding rock tunnel collapse sections has the advantages that collapse disposing construction period of water-rich very-broken surrounding rock tunnels is shortened, reinforcing range and intensity of the surrounding rocks are guaranteed, grouting reinforcement is fully conducted on the surrounding rocks in direct collapse areas, deformation in the preliminary bracing is relieved, occurrence of the exceeding clearance limit and the secondary geological disasters is avoided, disposing quality of collapse accidents is improved effectively, and good social benefit and economical benefit are created.

A transport network includes a flexible topology for internally defining transport elements. The transport elements each include a port group having a plurality of geographically distributed ports from the transport network. Point-to-multipoint connectivity is defined between the ports in a port group. An identifier represents the port group as a single element to internal and/or external elements for protocol exchanges.

A defective display is obviated by preventing the intrusion of a foreign substance in a gap defined between a constitutional member, such as an upper frame, an intermediate frame, a backlight device or the like, and a display panel and by suppressing the application of a stress to the display panel. A shaped elastic member is interposed between a liquid crystal display panel and a mold of a backlight device. One longitudinal side surface of the shaped elastic member is fixedly mounted on the backlight device and the other longitudinal side surface of the shaped elastic member is non-fixedly mounted on the liquid crystal display panel, such that the other longitudinal side surface is always brought into contact with the liquid crystal display panel to prevent the generation of a gap therebetween.

The invention discloses a medical dressing with a cooling function and a wound healing promoting function, which at least comprises a perforated non-woven fabric layer, a nanometer fiber layer with a gradient structure, a hydrogel layer and a supporting layer. The preparation method of the medical dressing includes steps of covering hydrogel onto the supporting layer; covering the nanometer fiberlayer with the gradient structure on the hydrogel; and finally reinforcing the perforated non-woven fabric layer on the surface of the nanometer fiber layer so as to obtain the medical dressing. The nanometer fiber layer has the gradient structure, and facilitates absorption and retention of liquid of wound, and medicine can reach the surface of the wound after being released, so that wound healing is promoted; the perforated non-woven fabric layer has a physical isolating effect, avoids outside bacteria, can absorb effusion of the wound, can be easily removed from the surface of the wound and is not adhered with the wound; and the hydrogel layer can realize temperature regulation and reduces the temperature of the wound. The medical dressing comprehensively utilizes a medicine loading performance of nanometer fibers and capillary mobility of liquid, and promotes wound healing while cooling.

The invention relates to a user identity reliably-verifying system based on face identification and a using method thereof. The system comprises a database server, a face identification server, an application server, a user terminal computer and a face acquisition device, wherein the database server, the face identification server, the application server and the user terminal computer are all connected to an interchanger for data transmission, and the output end of the face acquisition device is connected with the user terminal computer. The enterprise user identity reliably-verifying system is established by means of the fan identification technology, a face identification authentication service port and a face identification component are flexibly integrated for an enterprise information system to be used, and a safe and reliable identity verifying service is provided when an enterprise user logs in the information system or conducts key business operation.

A method of manufacturing a resorbable balloon designed to contain bone cement for vertebroplasty or kyphoplasty applications is described. The resorbable balloon can be inserted into a vertebral body following vertebral cavitation and filled with bone cement. The balloon remains in place in the vertebral body and resorbs over time. Methods and apparatus are also described for delivering therapeutic agents using collapsible, resorbable balloons. The balloons may be nested and filled with various therapeutic agents that are released over time at rates dependent upon structures and degradation rates of the balloons. Furthermore, the function of the hollow devices can encompass both encapsulation and therapeutic substance delivery roles simultaneously.

A turbine blade damper seal assembly includes a seal and a damper that both abut a radially outermost non-gas path surface. The seal is fabricated from a plastically deformable material and nests within a recess of the damper. The damper is fabricated from a rigid material that absorbs vibrational energy generated during operation. The recess within the damper provides for both the damper and the seal to be positioned at the radially outermost non-gas path surface.

A microphone unit (1) is provided with: a case (11), in which a diagram (contained in a MEMS chip (12)) that vibrates due to sound pressure, an internal space (111) that houses the diagram, and an opening (112) that links the internal space (111) to the outside and serves as a tone hole, are disposed; and a film (14) that is formed by a material that is not permeable to air, and that is joined to the base (11) in such a manner as to cover the opening (112). An internal pressure regulation section (141) is disposed in the film (14).

The invention discloses an intellectual property service system based on Internet of things, and relates to the technical field of Internet of things. The system comprises a client, a virtual private network and a server. Different users have exclusive clients. The virtual private network is used for guaranteeing the security of data transmission. The server comprises an authority management system, a patent analysis system, a law query system, a patent application system, a patent transaction system, a patent retrieval system and relevant databases. The authority management system is used for managing the authority of each user in the system; the patent analysis system is used for providing a patent analysis service for users; the law query system is used for providing law and regulation query for the users; the patent application system is used for providing a patent application service for the users; the patent transaction system is used for providing a patent transaction platform; the patent retrieval system is used for providing a patent retrieval service for the users; and the relevant databases are used for providing a database support for each system.

A known flip-chip assembly manufacturing process is augmented by process steps of the invention to create a VCSEL flip-chip assembly comprising a plurality of semiconductor devices having respective arrays of a small number of VCSELs thereon, which are mounted on a substrate to form a large array of VCSELs that are precisely optically aligned with their respective optical coupling elements.

To reliably prevent entrance of electro-magnetic waves in a door that closes an opening portion formed in an airframe of an aircraft. A gasket seal 20 which is arranged between an opening portion 12 formed in an airframe of an aircraft and a door 13 for closing the opening portion 12, includes: a gasket seal body that is made of a rubber material; and conductive fiber 24 that covers a surface of the gasket seal body. When the door 13 is in a closed state, the gasket seal 20 whose surface is made conductive is abutted against a striker 30 provided on a skin 11 side of the airframe and made of a conductive material. The door 13 and the skin 11 of the airframe are electrically connected together via the conductive fiber 24 and the striker 30, and electro-magnetic waves can be reliably shielded.

A wiring board is provided which can prevent a metal electrode from corroding due to a defect in a transparent conductive electrode covering an end face of an organic insulating film. An active-matrix substrate includes: a glass substrate; a metal wire provided on the glass substrate; a gate insulating film covering the metal wire; an interlayer insulating film covering the gate insulating film; and a transparent electrode formed on the interlayer insulating film. The scanning wire provided with a terminal area where the transparent electrode is laminated directly on the scanning wire. The transparent electrode extends over the terminal area in such a way as to cover an end face of the interlayer insulating film that faces the terminal area and an end face of the gate insulating film that faces the terminal area.

The invention relates to a high temperature anti-oxidation coating capable of reducing the oxidation burning loss of stainless steel in a heating furnace. The high temperature anti-oxidation coating is characterized in that the coating comprises solid materials consisting of 46 to 92 percent of basic filler and 8 to 54 percent of composite binder, and water which is 0.5 to 20 folds of the weight of the solid materials. The basic filler comprises several chemical components selected from silicon dioxide, alumina, magnesia, calcium oxide and boric oxide. The composite binder consists of several components selected from sodium silicate, lithium metasilicate and aluminum phosphate. The coating can be painted at the normal temperature or sprayed onto the surface of a stainless steel billet from the room temperature to 1,000 DEG C. The coating can form a protective coat at the high temperature, thereby greatly reducing the high temperature oxidation burning loss of stainless steel at 1,400 DEG C, and reducing the unit area oxidation burning loss by more than 90 percent. After stainless steel is drawn out of the furnace, the iron oxide scale can be fully stripped off under the actions of temperature reduction or high pressure water; the amount of the produced iron oxide scale is also obviously reduced; and the stainless steel surface quality is remarkably improved.

The invention relates to a method for preventing disease of konjac, and the method comprises the following five aspects of: konjac seed treatment, soil treatment, sowing pre-treatment, a sowing method and field management. The method disclosed by the invention has the beneficial effects that the konjac seed treatment is carried out, thus diseased konjac seeds can be avoided from being mixed and the konjac seeds can be prevented from being infected with a disease; the soil treatment is carried out, thus harmful bacteria can be avoided from being carried in soil, the harmful bacteria in the soil can be killed, and meanwhile the living environment of the harmful bacteria can be destroyed; the sowing pre-treatment is carried out, thus the diseased konjac seeds can be avoided from being mixed, the disease resistance of the konjac seeds can be enhanced, and sprouting and sowing can be used for reducing the opportunity that the harmful bacteria are immersed into the konjac seeds; interplanting can be used for reducing the survival chance of the harmful bacteria and filtering part of sunlight, and a base fertilizer is applied well, thus top dressing can be reduced, and the influence on a konjac plant can be reduced; the filed management can be used for preventing the harmful bacteria from intruding in the whole journey; and a series of comprehensive methods can be used for preventing the disease of the konjac in every aspect.

An assembly for use in the formation of adjacent concrete slabs to provide a flat rectangular dowel engaged between the slabs. The assembly comprises a pocket which is cast in place in the edge portion of the first slab to be formed, with the dowel fully confined within the pocket. After the formation of the first slab, the dowel is partially withdraw from the pocket and the second slab is formed in place against the first slab, with the dowel in spanning relationship to the respective slabs. In the preferred embodiments, the pocket comprises a monolithic plastic box having complimental generally rigid upper and lower sections movable between a closed condition defining the pocket therebetween and an open condition exposing the pocket interiorly. One edge of the pocket is formed with an opening through which the dowel passes as it moves between the fully confined and the partially withdrawn positions. In certain embodiments, a sealing element or door is provided to close the opening during the formation of the first slab. Seal elements are also provided to seal the pocket against the intrusion of concrete during the formation-of the second slab.

The invention discloses an OPC security gateway system, and aims at solving the technical problems of poor security in interconnection of the existing enterprise information network and industrial control network. According to the technical scheme, the system comprises an OPC client security authorization module, an OPC data packet validity inspection module, an OPC data packet content inspection module, an abnormal event detection and alarming module, a log recording and security auditing module, a network assets recognizing and managing module, a system management interface module and a remote management tool. According to the system, the information of the enterprise information network enters the industrial control network through the OPC security gateway system, the OPC security gateway system performs security authorization for the communication behavior and inspects the validity and content of a data packet as well as recognizing and filtering malevolence communication behavior and an OPC data packet, so as to prevent invasion of illegal users, preventing from being attacked by abnormal or deformed OPC data packet as well as preventing the industrial network control from being attacked; the security in interconnection of the enterprise information network and the industrial control network can be improved.

The invention discloses an amphoteric heat-resistant and salt-resistant filtrate reducer for drilling fluid and a preparation method. The amphoteric heat-resistant and salt-resistant filtrate reducer is prepared from, by weight parts, acrylamide, alkenyl sulfoacid or alkenyl sulphonate, acrylic acid, cationic monomers, rigid monomers, sodium hydroxide, potassium hydroxide, dispersant, deionized water, a molecular weight modifier and an initiator. The preparation method includes the steps that acrylamide, acrylic acid, alkenyl sulfoacid or alkenyl sulphonate, the cationic monomers, the rigid monomers and the deionized water are added into a reactor, after the materials are dissolved, the pH value of the solution is adjusted, the dispersant is added, the materials are mixed, then the mixture is transferred into a reaction still, nitrogen is introduced for deoxygenization, the initiator is added for triggering polymerization, and jelly is taken out after the reaction is completed, dried, smashed and sieved. The molecular weight of the filtrate reducer for the drilling fluid is controllable; the filtrate reducer can adapt to complex drilling conditions, and can be used in horizontal wells, high-temperature deep wells and evaporite beds; fewer residual monomers of the filtrate reducer for the drilling fluid are generated; the filtrate reducer and other oil field chemicals are good in compatibility; the preparation method is simple; the cost is low, and popularization is promoted.

The invention relates to a biomass feed divider with changeable trough obliquity and vibration frequency and amplitude, which realizes continuous, stable and safe feed division by adopting two regulating measures of changing obliquity of a trough and changing vibration frequency and amplitude and by exciting force generated by a vibrating motor (9). The device is formed by arranging one or a plurality of independent distributors in parallel, wherein each distributor mainly comprises a trough body (4), a vibrating motor (9), an elevating (8), a spring supporting mechanism (11) and an auxiliary mechanism; the trough body (4) is supported by the spring supporting mechanism (11) at the front part and the elevating (8) at the rear part, the vibrating motor (9) is arranged in the middle of the bottom of the trough body (4), and the rear part of the trough body (4) is connected with bulkhead by canvas (3). The device integrates material storage and material distribution, is not only suitable for hard biomass but also is suitable for soft biomass, and has lateral expansibility, thereby being convenient to be used together with material equipment of various types.

The present invention is the preparation process of stone material surface protecting agent. The preparation process includes adopting absolute ethyl alcohol as solvent, mixing with long chain alkyl alkoxy silane and hydrogenous methyl silicone oil at room temperature, and adding dibutyltin dilaurate as organic catalyst through stirring. When it is used, the stone material surface protecting agent is painted directly before letting stand for 24 hr and further construction without needing heating for crosslinking. It may be used in repairing fine holes and cracks without blocking the capillary tracts, and it can form excellent hydrophobic effect while not blocking inside water vapor to diffuse outwards.

The invention discloses a bottom unified aqueous anticorrosive paint and its preparation method. the paint is composed of the following ingredients, by weight, 15-30% of water, 0.1-0.5% of a dispersant, 0.4-0.8% of an antifoaming agent, 2.5-25% of modified zinc phosphate, 5-25% of iron oxide red or mica iron oxide, 5-25% of a body filler, 40-70% of a film-forming emulsion, 0.1-1.5% of a thickening agent, 1-4% of a film-forming auxiliary agent and 0.2-1.5% of a flash-rust inhibitor. According to the bottom unified aqueous anticorrosive paint, each ingredient with specific weight percentage interacts with each other. Thus, comprehensive performance of the paint is raised, and in particular, anticorrosive performance of the paint is excellent. The paint is environmentally friendly. Problems of heavy odor, high pollution and the like existing in a traditional oil paint are solved. Meanwhile, each anticorrosion index is guaranteed. The product has simple preparation and construction technologies, is easy to carry out, is easy for large-scale industrial production, and has a wide application prospect.