997 results about "Surface element" patented technology

A fastener (1) includes a screw (2) and a supporting element (3). The screw (2) includes a head (4), a shank (8) and a threaded portion (12). The threaded portion (12) is located on the shank (8). The threaded portion (12) includes a thread having an outer diameter (14). The threaded portion (12) includes a thread runout (25) facing the head (4) of the screw (2). The shank (8) includes a shank portion (10) having a diameter (11) which is smaller than the outer diameter (14) of the thread. The supporting element (3) is captively connected to the screw (2), and it includes at least one narrow location (27). The narrow location (27) has a diameter (28) which is smaller than the outer diameter (14) of the thread. The narrow location (27) includes at least one surface element (30, 35) facing the thread runout (25) and forming an enveloping cone (31) enveloping the thread runout (25) to prevent the supporting element (3) from getting clamped at the thread runout (25) of the screw (2).

A stent delivery system deploys a stent having an inner periphery that defines an interior space extending lengthwise along at least a part of the stent and comprising at least one segment having relatively low column strength. The stent delivery system comprises a stabilizer which is disposed within the stent interior space and has a surface element adapted to engage the stent inner periphery in a region containing the low-column-strength segment. The surface element may comprise a sleeve or a coating having a high friction surface adapted to transmit adequate shear force to the stent to move the stent relative to the outer sheath upon deployment. Alternatively, or in addition, the surface element can include at least one radial protuberance. The protuberances may comprise rings of various cross-sections, axial lengths, or space sizes therebetween, or may be in the form of discrete barbs, bumps, or inflatable knobs arranged in a ringed configuration or helical pattern about the stabilizer. The stabilizer may also comprise an inner core and a heat-moldable compression sleeve surrounding the inner core, the heat-moldable compression sleeve having an outer surface comprising a plurality of protuberances defined by a thermal imprint of the stent inner periphery on the compression sleeve outer surface. A method for delivering a stent using a stent delivery system as described herein is also disclosed, as is a method for loading a stent and stabilizer having a heat-moldable compression sleeve into a stent delivery system.

A disposable flexible container for a fluent product comprises a product volume for the fluent product at least partially defined by a nonstructural panel having one or more flat spaces and one or more structural support volumes. The disposable flexible container also includes one or more surface elements generally projecting outwardly in relation to the one or more flat spaces on the nonstructural panel. Preferably, the one or more structural support volumes comprise a structural support frame configured to prevent the container from collapsing and, more preferably, they are arranged to generate and maintain tension in the nonstructural panel when they are expanded.

A system for treating tissue surrounding a resected cavity that is subject to a proliferative tissue disorder is provided. The system includes a tissue fixation device including a catheter body member having a proximal end, a distal end, an inner lumen, and an expandable surface element disposed proximate to the distal end of the body member, the expandable surface element sized and configured to reproducibly position tissue surrounding a resected tissue cavity in a predetermined geometry upon expansion. After expansion of the expandable surface element within a resected tissue cavity, an external radiation device positioned outside the resected cavity delivers a dose of radiation to the tissue surrounding the expandable surface element.

A process for the manufacturing of a decorative surface element, which element comprises a base layer and a decorative upper surface. A radiation curing lacquer is printed in a predetermined pattern as an uppermost layer on the decorative upper surface. The radiation curing lacquer covers only parts of the decorative upper surface whereby the lacquer is exposed to radiation whereby it cures. A surface structure is hereby achieved.

The invention relates to a semiconductor power device with charge compensation structure and monolithic integrated circuit, and method for fabricating it. In the case of this semiconductor power device, zones (6) in charge compensation cells (27) that are arranged vertically and doped complementarily to the semiconductor chip volume (5) are arranged in the entire chip volume, the complementarily doped zones (6) extending right into surface regions (11) of the semiconductor power elements (7) and not projecting into surface regions (12) of semiconductor surface elements (1).

A method of forming a building panel or a surface element, including providing a substrate, applying a sub-layer on the substrate, applying a mesh structure on the sub-layer, and applying heat and pressure to the mesh structure such that the sub-layer at least partially fills meshes of the mesh structure. Also, to such a building panel and a surface element.

The present invention is directed to optical devices. More specifically, the disclosed devices include a film defining a periodic array of surface elements so as to give rise to surface plasmon polaritons. The film also includes at least a single aperture having a diameter less than the wavelength of light. In one embodiment, the surface elements can be an array of anisotropic apertures and the films can act as a polarizer. The disclosed devices can also include a material having a variable refractive index substantially adjacent to the metal film. For example, the refractive index of the adjacent material can vary according to some characteristic of the light incident to the device, for instance, the intensity or the angle of incidence of the light. In this embodiment, resonant coupling of incident light with the SPP, and hence transmittivity of the device, can depend upon the nature of incident light. The disclosed devices can be useful in, for example, remote polarizers, polarization mode dispersion, isolators, multi-color displays, switches, such as can be controlled according to incident sunlight, or optical filters, such as for eye protection devices, filtering out possibly harmful light.

The invention discloses a CNN-deep-learning-based bridge-crack detecting and positioning method, comprising: first, using the window sliding algorithm to cut a bridge image into smaller bridge crack surface element images and bridge crack background element images; and at the same time, based on the CNN-based DBCC classification model, identifying the bridge crack background element images and the bridge crack surface element images; then, in combination with the window sliding algorithm, performing bridge crack detecting and positioning on the entire bridge crack image; and finally, speeding up the algorithm through the search strategy of combining the image pyramid and ROI. Compared with the traditional crack detecting and positioning method, not only the bridge crack detecting and positioning method of the invention achieves a better detection effect and a stronger generalization ability, but also the method is performed directly based on color images, an impossible situation for the traditional crack detecting and positioning method.

Methods and apparatus for providing a tunable absorption-emission band in a wavelength selective device are disclosed. A device for selectively absorbing incident electromagnetic radiation includes an electrically conductive surface layer including an arrangement of multiple surface elements. The surface layer is disposed at a nonzero height above a continuous electrically conductive layer. An electrically isolating intermediate layer defines a first surface that is in communication with the electrically conductive surface layer. The continuous electrically conductive backing layer is provided in communication with a second surface of the electrically isolating intermediate layer. When combined with an infrared source, the wavelength selective device emits infrared radiation in at least one narrow band determined by a resonance of the device. In some embodiments, the device includes a control feature that allows the resonance to be selectively modified. The device has broad applications including gas detection devices and infrared imaging.

A vehicle lamp has a light source and a lens that is arranged on a front side of the light source. The lens deflects and irradiates light from the light source toward a front side of the vehicle lamp. A front side surface of the lens includes a first freely formed curve surface, and an irradiation angle, with respect to the optical axis, of the light to be irradiated from the front side surface is set as a target irradiation angle at each point of the front side surface. A rear side surface of the lens includes a second freely formed curve surface formed by continuous surface elements, each having an inclination angle that realizes a light irradiation by the target irradiation angle set at respective points of the front side surface.

The invention discloses a multifunctional super-surface structure based on polarization, a super-surface element and an encryption method, wherein the multifunctional super-surface structure comprisesa transparent substrate and a metal nano-brick array; the metal nano-brick array comprises a plurality of nano-bricks distributed on the substrate in an array mode; the surface of each nano-brick, away from the substrate, is a working surface; the substrate is divided into a plurality of square substrate units by the nano-bricks; the nano-bricks and the corresponding substrate units form nano-brick units; the geometric parameters of the nano-brick units comprise the lengths and widths of the nano-bricks and the side lengths of the substrate units; and the geometric parameters of the nano-brick units are configured as follows: when two first linearly polarized beams with polarization directions perpendicular to each other are incident on the working surface in a perpendicular mode, the reflection rate of one of the first linearly polarized beams is the highest, the transmissivity of the other first linearly polarized beam is the highest. The structure can simultaneously and independently control the phase of transmitted light and the light intensity of reflected light.

A computer-animated scene illuminated by indirect light is shaded. The scene is comprised of sample locations on a surface element of an object in the scene. A point cloud representation of the scene is generated. Optionally, an importance map of the scene, based on the point cloud representation, is generated. The importance map is generated by rasterizing one or more points in the point cloud and designating areas of interest based on the energy value of the one or more points in the point cloud. A ray tracing engine is biased, based on the importance map. The biased ray tracing engine calculates the path of the ray to the sample locations in the scene to an area of interest. The scene is shaded using the output from the biased ray tracing engine.

The invention relates generally to the field of plasmonics, and more specifically, in one embodiment, it relates to fabricating elements in whole or in part using one or more self-assembling elements comprised of purified, synthetic and or recombinant protein molecule elements and or their accessory elements, and in particular, composed of at least one or more Clathrin and or Coatomer I/II protein molecules, forming one or more self-assembling structure and framework elements of one or more molecular weights, dimensions, geometries, symmetries, configurations and combinations. In another aspect, the invention relates to a method using one or more nanoscale metal surface elements that, when one or more appropriate types or forms of energies are applied to one or more types of metal elements, emit one or more preferred types or forms of surface-plasmon-enhanced electromagnetic radiation and energy.

A circuit arrangement for a power semiconductor module provides low parasitic inductances and low loss. An electrically insulating substrate supports metallic ribbon connectors which in turn power attached semiconductor components. DC port conducts are positioned in close proximity to each other and are arranged in at least one partial sector parallel and in close proximity to the surface of the substrate and/or the ribbon connectors and electrically insulated from the same, and at least one AC port conductor is similarly attached. The port conductors include surface elements enabling simplified low-inductance wire bond connection from the port conductors to either the power semiconductor components or ribbon connectors or both.

A front surface element structure is formed on the front surface side of an n⁻-type semiconductor substrate. Then defects are formed throughout an n⁻-type semiconductor substrate to adjust a carrier lifetime. Hydrogen ions are ion-implanted from a rear surface side of the n⁻-type semiconductor substrate, and a hydrogen implanted region having a hydrogen concentration higher than a hydrogen concentration of a bulk substrate is formed in the surface layer of a rear surface side of the n⁻-type semiconductor substrate.

The present invention discloses a helicopter aerodynamic layout optimization method capable of reducing the adverse effect of aerodynamic interference. According to the method, aiming at the defects of a wind tunnel test and a CFD method and based on a discrete vortex method and a surface element method, a coupled aerodynamic interference high-precision analysis model for a helicopter is set up, so that the influence of aerodynamic interference on the helicopter can be considered only by simulating calculation without carrying out the wind tunnel test; compared with the CFD method, the method has the advantages of greatly reducing the requirements of a simulation model for computing resources and shortening computing time. In order to further reduce calculated amount and a optimization region, a helicopter fuselage shape parameter model is set up by a parametric method and a combined optimization method based on an agent model is adopted, so that the optimal helicopter aerodynamic outline and layout are obtained and the purpose of reducing aerodynamic interference to improve the flight characteristics of the helicopter is achieved. The helicopter aerodynamic layout optimization method can be applied to the conceptual design phase of the helicopter so as to improve the flight characteristics, the balancing characteristic, stability and manoeuvrability of the helicopter.