20 results about "Layer group" patented technology

The invention provides an optimization method for predicting the long-term welding reliability of a wire harness terminal and a conductor, and the method comprises the steps: collecting temperature and time data in a welding process, processing the data through a thermal simulation model, and obtaining the change trend of conductor lattice arrangement; according to the change trend of conductor lattice arrangement, the initial thickness and component distribution of oxide layer formation are obtained, and microstructure features of an oxide layer group are determined; aiming at the microstructure characteristics of the oxide layer group, simulating a long-term use environment by adopting an accelerated aging test to obtain a prediction curve of resistance increase; according to the quantitative model of the aging behavior, a performance evolution rule in the actual use environment is obtained, and the incidence relation between welding parameters and long-term reliability is determined; for a process scheme for improving the stability of a conductor, the resistance change of the conductor in a high-temperature environment is simulated and verified, and the accuracy of quantitative correlation is judged.

The invention belongs to the technical field of impact protection and energy absorption, and particularly relates to a double-platform energy-absorbing buffer material with a negative Poisson's ratio characteristic, which comprises a top layer, an energy-absorbing layer group and a bottom layer which are fixedly arranged in sequence, the energy absorption layer set is composed of a plurality of stacked energy absorption layers, and each energy absorption layer comprises a plurality of energy absorption units arranged in a rectangular array. Each energy absorption unit comprises two orthogonally-arranged energy absorption unit cell structures, each energy absorption unit cell structure forms a first energy absorption cavity through a connecting face and a first inwards-concave structure, and a transverse rod and a second inwards-concave structure are arranged on the outer side of each first inwards-concave structure to form a second energy absorption cavity. The adjacent energy absorption units in the layers are connected through transverse rods, and the energy absorption layers are fixed through connecting faces. By means of various step-by-step buckling deformations of the two-stage concave structure, the first stress platform and the second stress platform which are independently adjustable are sequentially generated in the compression process, and efficient two-stage energy absorption is achieved; the three-dimensional structure has the negative Poisson's ratio effect and multidirectional bearing capacity, and can effectively avoid transverse expansion due to compression.

A waveguide assembly for exciting / deflecting the partial light beams of at least one light beam pair, comprises a layer stack made of a plurality of layers stacked in a stacking direction, the layer stack comprising: two transparent dielectric cover layers, each including at least one transparent cover layer; a resonator stack having a predetermined number of layers between the two cover layer stacks, wherein at least one layer group including some successive layers in the stacking direction of all the layers of the resonator stack forms a resonator that includes at least one light-deflecting structure; at least one switching assembly, by way of which a phase change of at least one of two partial light beams of a light beam pair which can be guided between the outer boundaries of the cover layer stacks can be locally caused at least intermittently, which can be propagated without self-interference in the two cover layer stacks and with self-interference in the at least one resonator.

The invention discloses a high-temperature-resistant lens structure, which comprises a substrate, a substrate body and a hardened layer, and the hardened layer is coated on the substrate body; the at least one thin film layer group covers one side of the substrate, the thin film layer group comprises at least two first refractive index thin film layers and at least one second refractive index thin film layer, the refractive index of the first refractive index thin film layer is lower than that of the second refractive index thin film layer, and the refractive index of the second refractive index thin film layer is lower than that of the first refractive index thin film layer. The first refractive index thin film layer, the second refractive index thin film layer and the first refractive index thin film layer are sequentially arranged on the substrate, so that at least one of the first refractive index thin film layers contains 5wt%-15wt% of Ta2O5 and 85wt%-95wt% of SiO2; the waterproof coating is coated on the thin film layer group; therefore, the difference of expansion coefficients of the first refractive index thin film layer and the second refractive index thin film layer to temperature can be reduced, so that the thin film layers are not easy to separate and have the capability of resisting large temperature change when the temperature changes violently, such as temperature rise.

A structure of an infrared thermopile sensor chip and a manufacturing method therefor. The manufacturing method comprises the following steps: a, providing a substrate layer (100), the substrate layer (100) having an upper surface (110) and a lower surface (120); b, depositing a dielectric-dipole layer group (200) on the upper surface (110) of the substrate layer (100), wherein the steps of depositing the dielectric-dipole layer group (200) comprise: b1, depositing a first dielectric (211b) on the upper surface (110) of the substrate layer (100), and patterning the first dielectric (211b) to obtain a first dielectric layer (211) having a plurality of dielectric holes (420), the dielectric holes (420) being communicated with an upper surface of the first dielectric layer (211) and the substrate layer (100); and b2, depositing a first dipole layer (221) on the upper surface of the first dielectric layer (211), the first dipole layer (221) filling the dielectric holes (420); and e, from the lower surface (120) of the substrate layer (100), etching the substrate layer (100) and the first dipole layer (221) in the dielectric holes (420), so as to manufacture an infrared thermopile sensor chip having a back cavity (400), thereby improving heat dissipation capability, and increasing thermopile signal quantity.

The invention discloses an antiferromagnetic metal single crystal with a three-dimensional stacking ordered structure and a preparation method of the antiferromagnetic metal single crystal. The preparation method comprises the following steps: uniformly mixing Fe powder, Co powder, Ge powder and Te powder, and then loading the mixture into a quartz tube together with a transport agent; putting the sealed quartz tube into a double-temperature-zone tubular furnace for calcining to obtain the antiferromagnetic metal single crystal; a unit cell of the antiferromagnetic metal single crystal is formed by stacking a plurality of layer structures layer by layer, and each layer structure is provided with two Te layers, a Ge layer and a Fe / Co layer, wherein the Ge layer and the Fe / Co layer are respectively positioned between the two Te layers; the plurality of layer structures are grouped in pairs to form a plurality of layer groups which are sequentially stacked, the two layer structures in the same layer group are in an AA stacking mode, and the two layer structures in the two adjacent layer groups are in an ordered staggered stacking mode. The antiferromagnetic metal single crystal has the characteristics of good cruising antiferromagnetism, neel temperature higher than room temperature, three-dimensional stacking ordered structure and the like, and promotes the development of related fields.

The application provides a product defect intelligent detection method and system based on small sample learning, comprising the following steps: acquiring a defect picture; calling a DINO algorithm to process the defect picture to obtain a first processing layer; calling a Swin Transformer algorithm to process the defect picture to obtain a plurality of down-sampling layers; replacing one layer in the plurality of down-sampling layers with the first processing layer to form a candidate layer group; selecting a plurality of layers including the first processing layer from the candidate layer group to form a to-be-processed layer group; and outputting the to-be-processed layer group to a small sample target detection learner for processing and detection. The application can effectively combine the advantages of the DINO algorithm and the Swin Transformer algorithm, and take into account the fine granularity and semantic information of image processing.

The invention provides a self-adaptive ultrasonic detection and defect identification method for a composite material, and belongs to the technical field of ultrasonic detection.The self-adaptive ultrasonic detection and defect identification method for the composite material comprises the specific steps that firstly, preparation is conducted before detection; 2, collecting full-matrix data of the one-way plate; 3, calculating a core elastic constant of the composite board; 4, deducing the velocity distribution of each layer group of the composite board; 5, collecting full-matrix data of the composite board; step 6, adaptively correcting imaging delay; and 7, performing full-focusing imaging and judgment on the defects of the composite board. According to the method, defect subtle features which are difficult to recognize by human eyes in the full-focus imaging picture can be automatically mined through the deep learning model, the problems of missing detection and false detection caused by subjective judgment deviation are effectively avoided, rapid and accurate classification and positioning of various defects can be realized through the deep learning model, the detection period is greatly shortened, and the detection efficiency is improved. And reliable technical support is provided for high efficiency and precision of ultrasonic detection of the composite material.

Provided are: a hard coating that has a novel structure and has excellent wear resistance and deposition resistance with respect to a wide range of work materials; and a hard coating–coated tool.　A hard coating according to the present invention is formed by layering a first layer group 34 and an alternating nanolayer layer 36 that is a second layer group. The alternating nanolayer layer 36 is an alternating stack of at least three layers from among a nanolayer A layer 36a, a nanolayer B layer 36b, a nanolayer C layer 36c, and a nanolayer D layer 36d. The relationship between the hardness and the toughness of the coating can be optimized and the durability of the coating improved by varying the growth of particles at each layer by selecting the compositional ratio and additional elements of each layer to control crystal size and the relationship between crystal orientation (200) and orientation (111).

The utility model provides a shell and electronic equipment. The housing includes: a transparent substrate; the transparent texture layer group comprises a texture layer and a first substrate layer which are arranged in a laminated manner; the first transparent adhesive layer, the first substrate layer and the transparent substrate are laminated through the first transparent adhesive layer, and the first substrate layer is arranged between the texture layer and the transparent substrate. According to the texture shell, richer and diversified visual perception can be provided, and the application range of the texture shell is wider.

The application provides a gallium nitride high-power device multilayer structure growth control method and system, relates to the technical field of semiconductors, and comprises sequentially epitaxially growing a nucleation layer, a transition layer and a gradient stress buffer layer group on a substrate, controlling the difference value of the lattice mismatch degree of the gallium aluminum nitride layer in the buffer layer to decrease by synchronously regulating the growth temperature and the trimethyl gallium flow, and dynamically determining the thickness of a gallium nitride insertion layer based on the accumulated elastic strain energy to release the strain. Then, a stress modulation layer composed of a gallium aluminum nitride superlattice with the aluminum component periodically fluctuating is grown, the periodic stress field of the stress modulation layer is used to block the upward extension of dislocation defects, and finally, a channel layer and a barrier layer are grown. The method can effectively reduce the defect density of the epitaxial layer and improve the performance and reliability of the gallium nitride high-power device.

The invention relates to the technical field of metamaterials, and discloses a layered metamaterial with double negative refractive indexes, which comprises a substrate and a periodic layer group, and the periodic layer group comprises metal layers and dielectric layers which are alternately stacked on the substrate. The preparation method of the layered metamaterial with the double negative refractive indexes comprises the steps that S5, annealing treatment is conducted on the formed substrate and the periodic layer set, the annealing temperature is 300-600 DEG C, the annealing time is 1-5 h, and the layered metamaterial with the double negative refractive indexes is obtained. According to the layered metamaterial with the double negative refractive indexes and the preparation method of the layered metamaterial, the metal layer and the dielectric layer form a tightly combined interface, the interface roughness is small, interlayer defects are reduced, meanwhile, through annealing treatment, interface atoms are promoted to be rearranged, the defect density is reduced, and interlayer binding force is enhanced; the problems that the metal layer and the dielectric layer are low in interface bonding strength and easy to peel off or oxidize are solved, and electromagnetic performance attenuation caused by structural damage is reduced.

The utility model relates to a cover plate with a composite coating structure, which comprises a glass substrate serving as a support foundation of an integral structure; the coating layer group is arranged on the front surface of the glass substrate and sequentially comprises a Cu-Zr alloy layer, a Cu-Cr-Zr alloy layer and a copper-nickel alloy layer from inside to outside; the ink layer is arranged in a frame area on the back of the glass substrate, and the copper-silver alloy layer is located below the ink layer. And the total thickness of each layer of the coating layer group and the copper-silver alloy layer does not exceed 200nm. According to the technical scheme, the hardness and wear resistance of the glass surface are improved; the hardness and the corrosion resistance are further enhanced through the Cu-Cr-Zr alloy layer; and the copper-nickel alloy layer is used as the outermost layer, so that external scratch and corrosion are effectively resisted, and the inner-layer coating film is protected. Meanwhile, due to the application of the photochromic ink layer, the cover plate can show rich color changes according to the change of light or temperature, and the interestingness and attractiveness of the product are improved.

The present disclosure relates to an information processing apparatus and method capable of suppressing an increase in load of reproduction processing.The metadata including the spatial configuration information of the subgroup and the dependency information of the subgroup and the layer-group is generated on the basis of the bitstream of the geometry of the 3D data, and the file storing the bitstream and the metadata are generated. Further, on the basis of the spatial configuration information of the subgroup and the dependency information of the subgroup and the layer-group stored in the file as metadata, a bitstream of the geometry of the 3D data corresponding to the desired layer-group and the subgroup stored in the file is extracted, and the extracted bitstream is decoded. The present disclosure can be applied to, for example, an information processing apparatus, an information processing method, or the like.

A superparamagnetic tunnel junction element and a computing system using same, wherein the tunnel junction element has excellent operational stability against an external magnetic field and is suitable for the computing system based on probabilistic computing. The superparamagnetic tunnel junction element includes a first ferromagnetic layer group containing a ferromagnetic material, a second ferromagnetic layer group containing a ferromagnetic material, and a barrier layer disposed between the first ferromagnetic layer group and the second ferromagnetic layer group, wherein the first ferromagnetic layer group 14 includes a (1-1)th ferromagnetic layer, a (1-2)th ferromagnetic layer, and a first nonmagnetic coupling layer, the (1-1)th ferromagnetic layer is made of a ferromagnetic material, the magnetization direction thereof changes with a first time constant, the first time constant is one second or shorter, and the first nonmagnetic coupling layer contains at least one of Ru, Ir, Rh, Cr, and Cu.

The invention discloses a multi-model and multi-tenant-oriented key value cache scheduling method and device, equipment and a medium, and relates to the technical field of reasoning acceleration, and the method comprises the steps: obtaining a multi-stage stability portrait of a target large language model, so as to determine a hardware calculation node; the multi-level stability portrait comprises a pre-divided cache scheduling set of the large language model and a preset Top-K sampling reference parameter; the cache scheduling set comprises a head group and / or a layer group; the head group is obtained by aggregating attention heads according to the stability level, and the layer group is obtained by aggregating attention layers based on the stability level of the head group; the stability level is determined based on the stability score division of each attention head, and at least three level types are included; calculating a theoretical video memory occupation amount for key value caching to determine a parameter scaling factor of the request, and determining a Top-K sampling actual parameter; when reasoning processing is carried out, the generated target key value cache is stored in a layered mode, and dynamic scheduling is carried out in the decoding process.

The present disclosure relates to a memory and a method for forming the same. The method for forming the memory comprises the following steps: forming a stack layer on a substrate surface, the stack layer comprising layer isolation layers arranged at intervals along a first direction, and a sacrificial layer group located between adjacent layer isolation layers, the sacrificial layer group comprising a first sacrificial layer, a second sacrificial layer and a third sacrificial layer stacked in sequence along the first direction, the stack layer comprising a transistor region, wherein the first direction is a direction perpendicular to a top surface of the substrate; removing the first sacrificial layer of the transistor region to form a first void; forming an active pillar in the first void; removing the second sacrificial layer and the third sacrificial layer of the transistor region to form a second void; and forming a word line covering part of the active pillar in the second void. The present disclosure improves the yield and performance of the memory and simplifies the manufacturing process of the memory.

The application discloses a large-size h-shaped composite beam hot diaphragm forming tool and forming method and belongs to the technical field of composite material design and manufacturing. The h-shaped composite beam forming is decomposed into one L-shaped preform, one C-shaped preform and one flat plate preform by adopting the hot diaphragm forming process. Firstly, according to the designed layer, the flat plate layer group is formed by tape laying or manual lay-up, and then the L-shaped preform, the C-shaped preform and the flat plate preform are formed by the hot diaphragm forming process. Finally, the three preforms and the "0 degree fiber filling" layer are combined together, and the h-shaped preform is obtained by the hot diaphragm forming process again. The application simplifies the lay-up operation, improves the production efficiency, avoids the R angle area lay-up bridging, and guarantees the h-shaped composite beam profile quality and layer position precision.

The invention relates to an optical element (1) comprising: a substrate (2), and a coating (3) that is partially reflective or antireflective for radiation (4), preferably for radiation in the UV or VIS wavelength range, wherein the coating (3) comprises a plurality of first layers (6) and second layers (7), wherein the first layers (6) comprise a first, preferably fluoride or oxide, material, and the second layers (7) comprise a second, preferably fluoride or oxide, material whose refractive index (n2) for the radiation (4) differs from the refractive index (n1) of the first material for the radiation (4). The coating (3) comprises at least one layer group (8) for reflectivity adjustment, which includes a third layer (9) made of a third material that is not identical to the first and second materials.The invention also relates to an optical arrangement, preferably a laser or a semiconductor technology system, comprising: at least one optical element (1) designed as described above, and a method for manufacturing an optical element (1).

The application relates to an equivalent negative refraction plate and a preparation method thereof and a display device. The equivalent negative refraction plate is provided with at least one medium structure layer group, each medium structure layer group comprises at least two medium structure layers, a first surface of each medium structure layer is provided with a refraction structure, the refraction structure has a refraction surface, the refraction surface is inclined relative to the first surface, the refraction surface is beneficial to the deflection of refracted light towards a side close to a plane normal, and the equivalent negative refraction effect is realized through the superposition of the medium structure layer groups. It can be understood that the refraction surface is arranged as an inclined surface structure and the medium structure layers are superposed to realize the equivalent negative refraction, so that the overall structure of the corresponding equivalent negative refraction plate is simple and easy to process and form.