123 results about "Effective depth" patented technology

Systems and methods for laser scribing provide extended depth affectation into a substrate or workpiece by focusing a laser beam such that the beam passes into the workpiece using a waveguide, self-focusing effect to cause internal crystal damage along a channel extending into the workpiece. Different optical effects may be used to facilitate the waveguide, self-focusing effect, such as multi-photon absorption in the material of the workpiece, transparency of the material of the workpiece, and aberrations of the focused laser. The laser beam may have a wavelength, pulse duration, and pulse energy, for example, to provide transmission through the material and multi-photon absorption in the material. An aberrated, focused laser beam may also be used to provide a longitudinal spherical aberration range sufficient to extend the effective depth of field (DOF) into the workpiece.

A seating device such as a chair or sofa. The seating device includes a frame, a seat platform supported by the frame, and a backrest attached to the seat platform. The seat platform has opposite front and rear ends. The backrest has a first backrest portion extending upwardly from proximate the rear end of the seat platform. A lower end of the first backrest portion is positioned adjacent to an upper surface of the seat platform. The first backrest portion is capable of being moved forwardly and rearwardly along the upper surface of the seat platform while the lower end remains proximate the upper surface of the seat platform. A backrest-adjustment powered actuator operates the backrest for moving at least the first backrest portion forwardly and rearwardly partially along the upper surface of the seat platform to adjust an effective depth of the seat platform.

The invention provides a pose determination method and device based on depth information, a storage medium and electronic equipment, and belongs to the technical field of computer vision. The pose determination method comprises the following steps: acquiring a current frame image about a scene through a camera, and acquiring depth information of the current frame image; extracting feature points from the current frame image, determining the feature points with effective depth information as three-dimensional feature points, and determining the feature points with ineffective depth informationas two-dimensional feature points; matching the two-dimensional feature points and the three-dimensional feature points with local map points of a scene respectively, wherein the first error functioncomprises a two-dimensional error term and a three-dimensional error term, and the two-dimensional error term is an error between the successfully matched two-dimensional feature point and the local map point, and the three-dimensional error term is an error between the successfully matched three-dimensional feature point and the local map point; and determining the pose parameter of the camera inthe current frame by calculating the minimum value of the first error function. According to the invention, the tracking precision in the SLAM can be improved.

An ultrasonic Doppler probe is provided for use in connection with non-invasive Doppler imaging of fluid flow within the human body. The Doppler probe can be selectively operated at more than one frequency during the course of a Doppler imaging examination thereby enhancing the resolution of the image obtained while also increasing the effective depth of the image. The probe of the present invention employs piezo-electric materials for the formation of acoustic transmitting and receiving transducers that are positioned within the probe to allow the probe to be selectively operated at a number of different frequencies spanning no more than one octave in frequency range.

Provided is a Kinect depth video spatio-temporal union restoration method. According to the Kinect depth video spatio-temporal union restoration method, on the basis of the hypothesis that neighborhood pixels with similar colors should have similar depth values, a color segment image which corresponds to color images is used for guiding depth filling carried out on motion areas extracted from a first depth image and motion areas extracted from all the follow-up depth images; in consideration that some areas with darker colors and without effective depth values can cause failure of the Kinect depth video spatio-temporal union restoration method, the areas with the darker colors are detected firstly, and effective depth values of the same areas with the darker colors are used for repairing empty areas; according to static areas in depth video shot by a Kinect, if a current depth image is provided with empty pixels, filling is carried out by using depth values of positions, corresponding to the positions of the empty pixels, of a previous depth image. Due to the fact that the drawing technology based on the depth images is used for drawing a virtual viewpoint, the image quality of a virtual right view which is correspondingly obtained through the Kinect depth video spatio-temporal union restoration method is obviously better than that of an original virtual right view, and the Kinect depth video spatio-temporal union restoration method can be applied to 3D drawing.

The invention relates to a vibration quality control technology in concrete pouring construction of hydraulic engineering, in particular to an intelligent detection method for vibration effective depth. The intelligent detection method comprises the following main steps that sensors are adopted to collect real-time operation information of a vibrating machine/beam in an operation process, the real-time operation information, including the insertion depth of the vibrating machine/beam, the slant angle of the vibrating beam, and the switching state of the vibrating beam, is monitored in real time, through comprehensive analysis, the effective insertion depth of the vibrating machine/beam is accurately obtained, the effective vibrating time of the vibrating machine/beam is counted, a positioning module is adopted to obtain the operating coordinates of the vibrating machine/beam, so that the vibration quality of a concrete bin face is comprehensively monitored. The intelligent detection method for the vibration effective depth has the beneficial effects that the implementation mode is simple, manual intervention is not needed, the error caused by artificial judgment is solved, the vibrating monitoring process is enabled to be intelligent, and the obtained data is high in precision and stable and reliable. The intelligent detection method is particularly applicable to the large volume concrete vibration quality control of the hydraulic engineering.

The invention provides an automatic test system and test method for testing surface capillary water absorption of concrete, relates to a test system and a test method thereof, and aims to solve the problems that the existing test system is impracticable to ensure that the effective depth of a specimen immersed in water is always a small constant value, the water absorption mass of the specimen can not be automatically and continuously measured in real time, accidental errors caused by manual operation and the like exist, the test sensitivity is low and the precision is low. The system comprises a constant-pressure water supply unit, an electronic balance and a specimen water absorption unit. The test method comprises the following steps: 1, emptying liquid in a balanced air inlet pipe; 2, regulating height and water level of the specimen water absorption unit; and 3, acquiring mass data by using a computer. According to the invention, the effective depth of the specimen immersed in water can be ensured to be always a small constant value, real-time automatic continuous measurement can be realized, the accidental errors can be reduced, the test sensitivity is high, and the precision is high. The system and method are used in the fields of experimental study on pore structures and surface capillary water absorption of a concrete material, and physical engineering durability detection.

The invention discloses a 3D video depth image intra-frame predicting mode selecting method and system. The method comprises, firstly, computing the variance of an inter-frame predicting reference pixel set of an HEVC (high efficiency video coding) current block, and predicting whether the current block is a smooth block through the variance; if so, taking two inter-frame predicting modes of Planar and SDC_Planar; if not, dividing the reference pixel set of the current block into two reference pixel sets, and determining whether the current block is a boundary block according to the pixel variance of the two reference pixel sets; if so, predicting an effective HEVC inter-frame predicting mode, an effective depth model mode and the effective direction of an effective wedge splitting mode according to the distribution characteristics of a current reference pixel. The 3D video depth image intra-frame predicting mode selecting method and system effectively reduces the number of candidate depth inter-frame predicting modes of smooth areas and boundary areas, reduce the coding time required by inter-frame prediction, increase the coding speed and guarantee the final video quality of the synthesis perspective of a decoding end.

A photodiode for an image sensor capable of reducing reflection of light incident onto the photodiode and effectively absorbing transmitted light and a method of manufacturing the same are provided. In the photodiode for the image sensor, a silicon concavo-convex surface with a nano-thickness is formed by forming silicon oxide (SiO, x=0.5-1.5) layer on a silicon substrate and treating the silicon oxide layer with heat. A photodiode region is formed under the silicon layer having convexes and concaves. In this case, light absorptance increases because light reflected on the silicon concavo-convex surface is reincident onto another convex or concave. Therefore, an effective depth of the photodiode is larger than that of a planar photodiode, and accordingly, quantum efficiency of the photodiode increases.

A system for dividing a series of products within a display case, such as a freezer. The system includes a base positionable within the display case between products that are to be separated. The base is preferably formed from molded plastic and includes a series of horizontally extending support legs. The base includes a pair of parallel support arms that extend perpendicular to the support legs and are spaced from each other to define a receiving gap. The receiving gap is sized to receive a divider that can be positioned within the receiving gap. The base includes a series of support tabs each extending from the bottom wall of the base into the receiving gap to reduce the effective depth of the receiving gap. Each of the support tabs can be selectively removed from the base to increase the depth of the receiving gap. The depth of the receiving gap controls the amount of the divider extending past the top edge of the base. One of the support arms includes a locking member to securely hold the divider within the base.

The present invention relates to a long hair shampoo basin for use at barber shops and beauty salons. More specifically, the present invention is directed to shampoo basins which are adapted for shampooing longer hair than is accommodated by present basins without dragging the hair on the bottom of the basin. A variable height screen may be positioned within the basin to vary the effective depth of the basin.

A system and method for barrier submersion cooking comprising a thin walled plastic cooking pouch for receiving a food item effectively dimensioned such that when placed into a hot liquid cooking medium a vent remains above a top surface of the liquid cooking medium and a rack for lowering the vessel into the liquid cooking medium to an effective depth such that the food item received by the pouch is below the top surface of the liquid cooking medium and the vent is above the top surface of the liquid cooking medium. The pouch is formed of food grade pliable polymer film having a melt temperature above that of a temperature used in conventional hot oil frying processes, a heat transfer rate of an effective value to substantially instantaneously transfer heat from the liquid cooking medium to create an effective frying temperature upon the food item, and a pliability such that the pouch will collapse on itself when exposed to hydrostatic pressures when submerged within the liquid cooking medium, thereby effectively transferring heat to all food item surfaces.

The invention relates to a heat processing method used to remove steel parts surface decarburization. It includes the following steps: precision forging for the steel parts; heat treatment carbon complementing; normalizing treatment; machine tooled; carbonitriding quenching; backfire. The heat treatment carbon complementing is that the decarburized layer surface is processed cementation to form no decarburization continuous component and metallographic structure at austenitic temperature and carbon potential according to decarburized layer extreme depth before final heat treatment, then cooled to 300 degree centigrade to draw a charge. This can make the processed or unprocessed parts of the steel part have the same effective depth of hardening to improve steel part surface strength and control the deformation.

The invention discloses a manufacturing method of a field blocking type semiconductor device. According to the method, a groove is formed in the back face of a silicon wafer, so that a field blocking type layer is divided into a first field blocking layer and a second field blocking layer, the depth of the first field blocking layer is less than or equal to a first effective depth which can be reached by laser annealing, the transverse width of the second field blocking layer is twice less than or equal to the first effective depth, and accordingly the laser annealing of three dimensional directions can be conducted on the field blocking layer. Due to the laser annealing, an activation rate of the field blocking layer can be improved. Although the first effective depth of the laser annealing is only 1 micrometer-2 micrometers, the thickness of the field blocking layer is not limited by the first effective depth of the laser annealing after the method is adopted, and the depth of the field blocking layer can be improved. The invention further discloses a device structure of the field blocking type semiconductor device.

The invention discloses an anodic oxidation method of a spare part containing a blind hole. The method comprises the following steps: effective depth region test, sand blasting, surface pretreatment, anodic oxidation and subsequent procedures, wherein the effective depth region test comprises the following processes: providing a reference electrode in the blind hole, and testing potential or current density values of different depth positions in the blind hole, so as to obtain an effective depth region; the sand blasting comprises sand blasting on the effective depth region; surface pretreatment comprises the following processes: carrying out degreasing, alkaline etching and pickling on the spare part after the sand blasting step; anodic oxidation comprises carrying out anodic oxidation according to the anodic oxidation process; and the subsequent procedures are carried out after the anodic oxidation step. According to the method, potential or current density distribution at different depth positions in the blind hole can be effectively smoothed; and the uniformity of the thickness of an anodic oxidation film in the blind hole is improved.

A system and method for determining transistor model parameters that account for layout-dependent features in the transistor being modeled, and also in neighboring devices in the same integrated circuit. A computer-readable expression of the integrated circuit layout is retrieved, and active and gate layers in that expression extracted. For a transistor being modeled, its active regions are analyzed to determine whether these regions have a complex shape. Model parameters are derived based on volume effects of the complex shaped active regions. Neighboring active regions that affect parameters of the transistor being modeled are also identified and their effective depth determined. Strain effects due to complex shaped active regions and neighboring elements are thus included in the transistor model.

The invention relates to a non-quenched-tempered brake camshaft and a manufacturing method thereof. The manufacturing method comprises the following steps: carrying out blanking; carrying out induction heating; carrying out pre-forging; carrying out final forging; carrying out trimming; carrying out straightening; carrying out controlled cooling; carrying out induction normalization; carrying out machining; and carrying out partial surface induction quenching and tempering. An F45MnVS bar material with the size of phi25 to phi60 is adopted and a cam part of a workpiece is partially forged through a forging procedure; after a straightening procedure is carried out, the workpiece is put into the air in a dispersed manner and is cooled to a room temperature at a cooling speed of about 1.8 DEG C/s; and then the cam part of the workpiece is subjected to induction normalization treatment. After the machining is carried out, partial strengthening treatment is carried out on the workpiece by adopting a surface medium-frequency induction quenching manner to control the effective depth of a hardened layer to 1.5mm to 5mm; and finally, the tempering is carried out for 2h at 200 DEG C within 4h to obtain the camshaft. The camshaft provided by the invention has relatively good structure uniformity and a relatively high mechanical property.

The invention discloses a casing leakage point depth detecting method and device for an oil extraction well. According to the method, after fluid in a wellbore of the oil extraction well reaches a quiescent state, tagged particles are added into the wellbore, and the moment t when the tagged particles are added is recorded; then a decompression valve is opened to enable the annular pressure at a casing leakage point of the oil extraction well to be lower than the wellbore pressure of the oil extraction well, the purpose that the tagged particles can be sprayed out through the leakage point in a casing along with the fluid in the wellbore at a fast speed and impact the inner wall of an intermediate casing and the outer wall of an oil-string casing is ensured, and then impact signals on the casing walls are collected; the impact signals are compared and analyzed in real time through a computer, and the moment t1 in the impacting signals including the signals of impacting of the tagged particles on the casing walls is recorded and judged; and then the distance from a well mouth of the oil extraction well to the leakage point of the casing is calculated according to the formula (please see the specifications for the formula), so that quick and effective depth detecting of the casing leakage point is achieved, complexity and high cost of casing leakage point depth detecting are lowered, and assistance is provided for safe production of the oil extraction well.