1046results about How to "Reduced risk of cracking" patented technology

The invention discloses an identity identification method based on fingerprints, which includes the following steps: inputting the relation between fingerprints of a user and preset characters; setting and storing a preset password including the preset characters; reading the fingerprint password input by the user; converting the fingerprint password into a character string password; judging whether the character string password is identical to the preset password or not; confirming the identity identification to be passed if the character string password is identical to the preset password. The invention further provides identity identification equipment based on fingerprints. The method and equipment provided by the invention improve safety in identity identification, thereby guaranteeing the data security of users.

The invention discloses a touch control display panel and a touch control display device. The touch control display panel comprises an organic light-emitting device array substrate; a film encapsulated layer which covers the organic light-emitting device array substrate; the film encapsulated layer comprises at least one inorganic layer and at least one organic layer; a patterning first conducting layer, a patterning insulating layer covering the patterning first conducting layer and a patterning second conducting layer are successively arranged on the outermost surface, away from the array substrate, of the film encapsulated layer; the patterning insulating layer and the patterning first conducting layer have the same patterns; and the material of the patterning insulating layer is inorganic material; the patterning first conducting layer and the patterning second conducting layer are insulated by the patterning insulating layer. By means of the technical scheme of the invention, the contact area of the pattering insulating layer and the film encapsulated layer is reduced, the stress accumulation and stress transmission between the patterning insulating layer and the film encapsulated layer are weakened and the risk of crack in the patterning insulating layer and the film encapsulated layer is reduced, which is good for flexible display.

The invention discloses a method for encryption authentication on an Ad hoc network transmission layer protocol, which comprises five parts and 18 steps, wherein the five parts are a configuration stage, an authentication stage, a key negotiation stage, an encryption process and a key update flow. The encryption authentication method of the invention is applied to a hand shaking process in the end-to-end communication between two nodes in a multihop Ad hoc network, wherein the two nodes pass through message authentication code verification (MAC) for mutual verification; after the authentication successes, key negotiation is performed by using an elliptic curve diffie-hellman (ECDH) algorithm; and a subsequent message is encrypted by using a shared key acquired in the key negotiation process as a key material and by using an advanced encryption standard (AES) algorithm, and a key update flow is initiated in a communication process. In the authentication and key negotiation process, an exclusive or gate (XOR) algorithm is used for encrypting authentication information and key negotiation information, the safety is high, the efficiency is high, the system expense is small, and the encryption strength is high; and thus, the method has a promising application prospect in the technical field of wireless networks.

The invention belongs to the technical field of building materials, in particular to a compound water-preservation and viscosity promoting material used in commercial mortar and a preparation method thereof. Ca-bentonite, na-bentonite, kaolin, sepiolite, zeolite, cellulose ether (viscosity 10000mPa.s-200000mPa.s), fly ash and lignosulfonate are mixed and then ground till sieve residue is less than 40 percent with 0.08mm square opening sieve. The invention can greatly improve the cohesiveness and consistency of mortar, reduce the stratification of mortar and improve the water retaining rate of the mortar and perfect the uniformity, stability and constructability of mortar mixture, thus promoting construction efficiency and reducing environmental pollution. Being added with the material of the invention, the strength and durability of the mortar can be improved and the hazard of shrinkage and crack can be obviously reduced. The invention is specially used in the preparation of (dry-mixed, ready-mixed) mortar for masonry, plastering and ground commodities and also applied to the preparation of thermal insulation mortar and decorative plaster, etc.

The invention relates to hair styling apparatus. A hair styling apparatus comprises a first and a second arm each comprising a heatable plate and arm member. The first and second arms are moveable between a closed position in which the heatable plate of the first arm is adjacent the heatable plate of the second arm and an open position in which the heatable plates of each arm are spaced apart. The heatable plate of at least one of the arms is coupled to a respective arm member about a pivot arranged to allow the heatable plate to move relative to the respective arm member about an axis transverse to the length of said respective arm member such that the plate pivots.

A GaN-on-Si device structure and a method of fabrication are disclosed for improved die yield and device reliability of high current/high voltage lateral GaN transistors. A plurality of conventional GaN device structures comprising GaN epi-layers are fabricated on a silicon substrate (GaN-on-Si die). After processing of on-chip interconnect layers, a trench structure is defined around each die, through the GaN epi-layers and into the silicon substrate. A trench cladding is provided on proximal sidewalls, comprising at least one of a passivation layer and a conductive metal layer. The trench cladding extends over exposed surfaces of the GaN epi-layers, over the interface region with the substrate, and over the exposed surfaces of the interconnect layers. This structure reduces risk of propagation of dicing damage and defects or cracks in the GaN epi-layers into active device regions. A metal trench cladding acts as a barrier for electro-migration of mobile ions.

The invention relates to a swelling type micro-capsule/cement-based self-repair system. Calcium alginate is used as capsule walls, epoxy resin is used as capsule cores, accordingly, swelling type micro-capsules can be prepared, and the particle sizes of the micro-capsules range from 300 micrometers to 2.5 mm; basic components in a self-repair cement-based materials include cement, sand, the micro-capsules, water and epoxy resin curing agents, and the adding quantity of the micro-capsules is 0.5-10 wt% of the cement. The cement, the sand and the micro-capsules are uniformly stirred and dispersed, the water and the epoxy resin curing agents are poured into mixtures with the cement, the sand and the micro-capsules, and pouring forming, form stripping and curing are carried out after the water, the epoxy resin curing agents and the mixtures are uniformly stirred, so that the swelling type micro-capsule/cement-based self-repair system can be formed. The swelling type micro-capsule/cement-based self-repair system has the advantages that the micro-capsules have water absorption and swelling characteristics, accordingly, water can be compensated in cement hydration procedures, and the swelling type micro-capsule/cement-based self-repair system has an internal curing function; processes for synthesizing the swelling type micro-capsule/cement-based self-repair system are simple, the swelling type micro-capsule/cement-based self-repair system is good in mechanical property, is difficult to break in cement mixture stirring procedures and can be uniformly dispersed in the cement-based materials, and accordingly cracks can be self-repaired.

Method of manufacturing resin bonding grinding wheel with stomatal in a structure utilizing resin adhesive to fixing wear particles by which resin bonding grinding wheel with uniform stomatal size and distributing can be manufactured as well as granding wheel having improved mechanical strength and good grinding performance. The method comprises: uniformly mixing the wear particles, phenolic resin adhesive, water and foaming agent together; adding solidifying promoter and uniformly mixing the mixer; casting the obtained fluidity mixer into a prescribed mold, solidifying the mixer by the effect of the solidifying promoter; thereafter removing the water contained in the solidified body by a drying process, air bubbles are generated in the fluidity mixer by utilizing the chemical reaction of the foaming agent, the bubbles forms the stomatal of the grinding wheel structure after solidification.

The invention belongs to the technical field of building materials, and in particular relates to a high-flexibility and low-shrinkage fiber reinforced cement-based composite material. The composite material is prepared by mixing cement, coal ash, silicon powder, gypsum, an expanding agent, a water reducing agent, a shrinkage reducing agent, a defoaming agent, a thickening agent, fine sand, fibers and water, wherein the total mass percentage of the cement, the coal ash, the silicon powder, the gypsum, the expanding agent, the water reducing agent, the shrinkage reducing agent, the defoaming agent, the thickening agent, the fine sand and the fibers is 77-85 percent, and the mass percentage of the water is 15-23 percent. The fiber reinforced cement-based composite material has the performance characteristics of low shrinkage, high flexibility, small crack width, quickness in condensation and early strength and is high in compressive strength and good in synergism with other materials.

The invention discloses a method and a device of data transmission. The method and the device of data transmission are used for solving the problem that in the prior art safety of the data transmission is low. With the method, a sending end produces a random number m, and an American standard code for information interchange (ASCII) value of each character in data needed sending is changed into an m system number with an appointed bit, and then encrypted data needed sending are obtained. The random number m and the encrypted data needed sending are sent to a receiving end. Due to the fact that when a sending end encrypts the data needed sending every time, each ASCII value of each character is converted into a random m system number, results of a plurality of data needed sending and obtained after encryption are different even the same plurality of data needed sending are sent. Therefore, the risk of an encryption algorithm to be cracked is effectively reduced and security of data transmission is improved.

The invention relates to a semi-flexible anti-rut pavement material which comprises the following components in percentage by weight: 65-88% of big-void cement-base mixture and 12-35% of flexible grouting material. The big-void cement-base mixture comprises 1 part of cement, 4-6 parts of coarse aggregate, 0.4-1.0 part of fine aggregate, 0.1-0.3 part of water and 0-0.006 part of water reducing agent. The flexible grouting material comprises 1 part of cement, 0.65-1 part of modified emulsified asphalt, 0.1-0.35 part of water-based epoxy resin emulsion, 0-0.03 part of ground tire, 0.0025-0.007 part of water reducing agent, 0.05-0.2 part of expanding agent and 0.05-0.15 part of water. The semi-flexible anti-rut pavement material has the characteristics of high rut resistance, favorable flexibility and toughness, no seam, fewer cracks, low carbon, environmental protection and the like, can be constructed at room temperature, and is suitable for road rut treatment.

An arrangement for locking an engine bonnet firmly to a vehicle cab for reducing stresses on the bonnet and on the locking arrangement. The arrangement includes a first locking part fastened to the cab and a second locking part fastened to the bonnet. The first part includes a spindle supported between arms of a yoke. Facing convex dished guide surfaces at least one of which is resilient are disposed at the spindle. The receiving portion on the cab has two spaced apart plates each with a recess in it for receiving the spindle extending across them. The plates are placed so that the dished guide surfaces on the yoke of the receiving portion are engaged with the plates for guiding the spindle into the recess and for holding them against relative motion.

The invention discloses metakaolin concrete for oversized structure and a mixing proportion designing method. The metakaolin concrete is prepared by mixing 1016-1072kg of gravel, 825-848kg of refined machine-made sand, 213-282kg of P.O42.5 cement, 37-43kg of II-grade coal ash, 51-80kg of S75 slag powder, 22-26kg of metakaolin, 22-26kg of I-type UEA expanding agent, 0.6-1.5kg of polypropylene fiber, 6.26-8.13kg of coagulation-delaying polycarboxylate superplasticizer and 163-176kg of water. An aggregate close packing model is adopted, and a designing method based on wrapping and filling gravel gaps through mortar and wrapping and filling refined machine-made sand gaps through binding material slurry is adopted, so that close packing of components of the concrete is realized, improvement on strength and fluidity of the concrete is facilitated, and binding material consumption and system hydration heat can be reduced.

The invention relates to a floor laying structure of large-span steel bridge, wherein it comprises: panel, waterproof adhesive layer, transition layer, waterproof adhesive layer and pitch laying layer; said transition layer uses polymer cement concrete; the pitch laying layer uses polymer modified pitch concrete; the transition layer is irrigated on the panel with welding nails; the surface of transition layer near to the pitch laying layer has longitudinal and transverse anti-slide grooves; the transition layer can reduce the flexible modulus difference interlayer, to reduce the steering stress and improve the adhesive strength between layers; the welding nails and the anti-slide grooves can improve the friction resistances of laying layer, reduce the horizontal deformation of maximum stress area, and avoid horizontal displacement.

The invention discloses a high-resistance mechanical load solar energy battery component, comprising a cover plate material, an EVA and/or POE, a battery string group, an EVA and/or POE and a back plate material; the battery string group is formed by connecting multiple battery strings, and the battery string is formed by linking multiple small battery pieces in series; the small battery pieces are formed by cutting p type or n type solar battery pieces; after cutting, several small battery pieces with consistent width are acquired; the length and width of every small battery piece are different, and every small battery piece comprises a long side and a short side; the length and width of the cover plate material are also different, and the cover plate material also comprises a long side and a short side. The high-resistance mechanical load ability is greatly improved, power is also largely promoted, and the power generation cost is low. The invention further discloses a manufacturing method of the high-resistance mechanical load solar energy battery component.

The invention belongs to the field of construction, and particularly relates to a control method for cracks in a side wall of a pipe gallery box type tunnel and application. The method includes the steps that construction segmentation is conducted on the pipe gallery box type tunnel; and then segmented pouring is conducted in each construction segment in the longitudinal direction, wherein a construction joint of each construction segment is formed in the junction of a wall body and a top plate in the vertical direction, a two-step pouring manner is adopted, one-time pouring is conducted on a bottom plate, the side wall and a middle wall as a whole in the first step, concrete is poured on the top plate in the second step, and pouring is conducted on a middle pipe gallery transverse partition plate subsequently. According to the method, through optimization of construction processes of obtaining the reasonable segment length, arranging the construction joint position, obtaining the pouring time interval and obtaining the concrete pouring mode, the cracks and the appearance quality of concrete of the side wall are effectively controlled, and the 120-year service life of the concrete structure is sufficiently ensured.

A heat treating technology for fining microscopic structure of cast TiAl alloy ingot containing A (45-48 at%) and Nb (6-8 at%) includes such steps as quenching in salt bath plus ageing one or more times, and high-temp forging.

The invention discloses a locally uncombined suspension bridge steel-concrete combined bridge deck system and a construction method of the combined bridge deck system, and belongs to the technical field of bridge structures. The bridge deck system consists of concrete slabs, longitudinal steel beams, cross steel beams, air nozzles and toggle pin connectors; and a suspension bridge section steel-concrete combined bridge deck system is prefabricated in a factory. The prefabricated concrete slabs and section steel main beams form a whole through concrete wet joints and the toggle pin connectors. The prefabricated concrete slabs and cast-in-place concrete joints are only connected with the cross steel beams to form a whole through the toggle pin connectors, the longitudinal steel beams are not provided with the toggle pin connectors, and meanwhile, the toggle pin connectors are not arranged in a certain area of the ends of the cross steel beams at hoisting points. The problems of cracking, complex structures of toothed grooves at the slab ends of the prefabricated concrete slabs and the like due to the factors of temperature, contraction, creep and the like of the concrete slabs of the traditional suspension bridge combined bridge deck system are solved by adopting a locally uncombined technology on the premise of keeping the consumption of steel, the manufacturing process of the prefabricated slabs is simplified, the bearing capacity, the rigidity and the cracking resistance of the structure are improved, and the durability of the structure is improved.