2590 results about "In degree" patented technology

A foveated imaging system, which can be implemented on a general purpose computer and greatly reduces the transmission bandwidth of images has been developed. This system has demonstrated that significant reductions in bandwidth can be achieved while still maintaining access to high detail at any point in an image. The system is implemented with conventional computer, display, and camera hardware. It utilizes novel algorithms for image coding and decoding that are superior both in degree of compression and in perceived image quality and is more flexible and adaptable to different bandwidth requirements and communications applications than previous systems. The system utilizes novel methods of incorporating human perceptual properties into the coding the decoding algorithms providing superior foveation. One version of the system includes a simple, inexpensive, parallel pipeline architecture, which enhances the capability for conventional and foveated data compression. Included are novel applications of foveated imaging in the transmission of pre-recorded video (without eye tracking), and in the use of alternate pointing devices for foveation.

The present invention relates to film layers and compositions having improved hot tack properties. The compositions comprise at least one ethylene / α-olefin interpolymer, wherein the ethylene / α-olefin interpolymer may have, for example, a Mw / Mn from about 1.7 to about 3.5, at least one melting point, Tm, in degrees Celsius, and a density, d, in grams / cubic centimeter, wherein the numerical values of Tm and d correspond to the relationship: Tm>−2002.9+4538.5(d)−2422.2(d)2.

The present invention relates to film layers and compositions having improved hot tack properties. The compositions comprise at least one ethylene / α-olefin interpolymer, wherein the ethylene / α-olefin interpolymer may have, for example, a Mw / Mn from about 1.7 to about 3.5, at least one melting point, Tm, in degrees Celsius, and a density, d, in grams / cubic centimeter, wherein the numerical values of Tm and d correspond to the relationship:Tm>−2002.9+4538.5(d)−2422.2(d)2.

The invention belongs to the technical field of computer application, and provides a method and a system for tracking, three-dimensionally superposing and interacting a target object without a special mark. The method comprises the following steps of: firstly, segmenting the target object from an image shot by a camera, and creating a characteristic template of the target object automatically; next, directly identifying the target object by utilizing the characteristics of the target object, and calculating three-dimensional information (relative to the camera) of the target object; and finally, superposing a virtual object or an animated picture in a three-dimensional coordinate system in a realistic space through a graphics engine in real time. According to the method disclosed by the invention, video images and template images are subjected to characteristic matching via a surf algorithm so as to finish the calibration on the camera, so that real-time tracking and real-time three-dimensional superposing of the target object without the special mark are realized; for each frame of video image, three-dimensional coordinate information of the target is calculated in real time, so that interaction of a person or an object in reality with a virtual person or a virtual object is realized; and therefore, the method and the system disclosed by the invention are relatively high in degree of automation and have relatively popularization and application values.

The invention discloses a method for preparing a non-metallic element doped carbon coated metal nanoparticle magnetic composite. The method comprises the steps that water-soluble metal divalent salt, a cyanamide compound and a nitrogen or boron or sulfur containing non-metallic compound are added into a methanol solution to be mixed, dissolved, dried and ground, and obtained homogeneous-phase powder is subjected to roasting pyrolysis under the protection of inert gas; and a pyrolysis product is subjected to acid pickling, washing, drying and grinding, and a target product is obtained. According to the whole preparing process of the method, metal ion reduction, metal nanoparticle coating and doping of nitrogen / boron / sulfur and other non-metallic elements are achieved in one step. The composite prepared through the method is high in degree of graphitization, good in dispersity between particles and high in purity, and the preparing method has the advantages that the cost is low, the process is simple, and large-quantity synthesis can be easily achieved.

Thin film devices implantable within a human subject for occlusion of an aneurysm or body vessel are provided. The devices are movable from an elongated, collapsed configuration for delivery to a deployed configuration within the body. Such an occlusion device includes a thin film mesh attached to a carrying frame. The carrying frame is moveable between a collapsed configuration and an expanded configuration. The thin film mesh can include a plurality of slits, slots and / or pores that typically vary in degree of openness as the carrying frame moves between the collapsed and the expanded configurations. The occlusion device is positioned within a blood vessel so that the thin film mesh substantially reduces or completely blocks blood flow to a diseased portion of a blood vessel.

A durable ultraphobic surface that is capable of retaining ultraphobic properties at liquid pressures of one atmosphere and above. The surface generally includes a substrate portion with a multiplicity of projecting regularly shaped microscale or nanoscale asperities disposed so that the surface has a predetermined contact line density measured in meters of contact line per square meter of surface area equal to or greater than a contact line density value “ΛL” determined according to the formula: ΛL=-10⁢,⁢330γcos⁡(θa,0+ω-90⁢°)where γ is the surface tension of the liquid in Newtons per meter, θa,0 is the experimentally measured true advancing contact angle of the liquid on the asperity material in degrees, and ω is the asperity rise angle in degrees.

The invention discloses a method and module for extracting and interpreting information of a remote-sensing image, and provides a geographical element object based automatic interpreting method based on SRMMHR and random forest. The module extracts and interprets the information of the remote-sensing image by the adoption of the method. The method and module for extracting and interpreting the information of the remote-sensing image can achieve effective segmentation of the remote-sensing image, automatic optimization of characteristics, and automatic establishment of a classification rule set; a means which is little in manual intervention, high in degree of automation and high in interpreting precision is provided for extracting and interpreting the information of the remote-sensing image.

A fluid handling component having a durable ultraphobic fluid contact surface that is capable of exhibiting ultraphobic properties at liquid pressures of one atmosphere and above. The surface generally includes a substrate portion with a multiplicity of projecting regularly shaped microscale or nanoscale asperities disposed so that the surface has a predetermined contact line density measured in meters of contact line per square meter of surface area equal to or greater than a contact line density value “ΛL” determined according to the formula: ΛL=-10⁢,⁢330γcos⁡(θa,0+ω-90⁢°)where γ is the surface tension of the liquid in Newtons per meter, θa,0 is the experimentally measured true advancing contact angle of the liquid on the asperity material in degrees, and ω is the asperity rise angle in degrees.

Each of a pair of substrates respectively comprises an electrode and a rubbed alignment film on one surface, while the other surface is provided with a polarizer. The substrates are placed so that the surfaces provided with the alignment films are opposed to each other, and the area between the substrates is filled with a medium to form a material layer. Then, a medium made of a negative-type liquid crystalline compound sing a photopolymerizable monomer and a polymerization initiator is injected into the material layer held between the substrates. Further, ultra violet irradiation is performed with the medium exhibiting a liquid crystal phase, so that the photopolymerized monomer is polymerized, thus forming a polymer chain. In this manner, obtained is a display element, that causes change in degree of optical anisotropy in response to application of electric (external) field, which display element can be driven by a lower intensity electric (external) field.

The invention relates to an expandable acetabular cup (46) which is designed to eliminate the difficulties associated with positioning in the acetabulum of the patient. The inventive device comprises a hemispherical acetabular cup (46) which is partially slotted at six points to facilitate the expansion of a core with conical fitting. The expandable acetabular cup (46) is designed such that it can be introduced freely, or with slight pressure, into a preformed bone cavity. The conical core (16) is designed to be fixed to a guide / impacteur graduated in degrees to maximize the desired position. The implantation is performed gradually. The inclination and anteversion can be checked at all times during the implantation. The retaining mechanism of the guide / impacteur can be used to remove the conical core (16) to re-position the acetabular cup (46) if necessary. The expandable acetabular cup (46) can receive a conical auto-blocking core (85A, 85C) or, according to the patient' condition, a conical core (16) and a supporting auto-blocking ring (26), preferably pre-assembled to facilitate the chirgien's task. The device is secured in final position thereof using the thongs (86A, 96C) of the conical core (85A, 85C), which are disposed in the ribs (20) of a compressed expandable acetabular cup (46) in the acetabulum of the patient. It is recommended to use a femoral head (36) whose diameter is a function of the exterior diameter of the expandable acetabular cup, to therefore obtain the optimal thickness of the conical core (16) and to conserve the required thickness of the acetabular cup (46).

The invention discloses an intelligent material warehousing and fetching method. The method comprises the following steps: coding the material; delivering a material tray filled with the material to a material placement platform at a material inlet window of an intelligent warehouse by a loader; automatically capturing the material by a manipulator of the intelligent warehouse and storing the material to a freight space in the intelligent warehouse, of which the address is designated by a material management software system; when the material is discharged, fetching the material tray at the freight space address designated by the warehousing system by the manipulator and delivering the material tray to a material conveyor belt of the intelligent warehouse; conveying the material tray to a discharge hole of the intelligent warehouse through the material conveyor belt to finish material discharging from the intelligent warehouse. The intelligent material warehousing and fetching method disclosed by the invention combines the intelligent warehouse with the material management software system to realize accurate storage and fetch of multiple materials or the single material, is high in degree of automation, free of wrong material fetching or material loss, capable of reducing the idle stock problem, and high in material storage and fetch efficiency, saves labor, and is beneficial to improvement of the production efficiency and reduction of the production cost.

The invention discloses an estimation method of a human posture based on a depth image. The method estimates the human posture according to the depth image of a human body and simulates the human body in the image through a virtual human body model. The depth image includes a plurality of frames. The method includes the steps of building the virtual human body model composed of a skeleton model and a skin model; initializing parameters of the virtual human body model; filtering a current frame of the depth image; performing corresponding point detection on the virtual human body model and the depth image; and building and optimizing an objective function for the current frame of the depth image according to results of the corresponding point detection, and updating a current posture of the virtual human body model through the value of a minimized objective function, wherein the objective function is used for describing the posture difference between the virtual human body model and the depth image. The virtual human body model built in the estimation method is high in degree of freedom and good in skin deformation effect, the convergence rate of posture estimation is high, errors are small, simultaneously, a depth camera is used for obtaining depth images, so that devices of a human motion posture estimation system are simple, and popularization and application are facilitated.

The invention provides a three-dimensional face modeling method to achieve efficient three-dimensional face modeling. The method includes the steps that an original image and a standard model are obtained; the bone point information is obtained according to the standard model; a feature point is marked on the original portrait and the coordinate information of the feature point is recorded; first conversion is conducted on the original portrait; second conversion is conducted on the standard model; the surface of the standard model generated after the second conversion is conducted is unfolded according to the preset method to form a texture image; the original portrait generated after the first conversion is conducted is mapped to the texture image. The invention further provides a corresponding three-dimensional face modeling device for implementing the three-dimensional face modeling method. According to the technical scheme, the three-dimensional face modeling method and device are simple in operation mode, good in fitting effect and high in degree of reduction; meanwhile, the method and device are higher in implementation speed and higher in efficiency, the processes of implementation and calculation are simplified, the data collection process is simplified, practicability and adaptability of a system are improved, and the method and device have great advantages in situations of low requirement for the face depth information.

The invention relates to a compliant passive gripper drawn by pneumatic ropes and provided with bent plate spring skeletons. The gripper is provided with two fingers which take bent plate springs as skeletons and grip objects passively through elastic restoring forces of the bent plate spring skeletons; the two fingers are driven by a cylinder; the acting force of the cylinder is increased through a five-hinge skewed double-elbow reinforcement mechanism which is frequently used on an injection machine so as to drive drawing ropes of the fingers, overcome deformation resistance of the bent plate springs and open the passive gripper; and the opening degree of the gripper can be controlled by controlling the pressure of the cylinder. The gripper has the advantages of large driving force, wide applicable range, simple structure, less controlled objects, convenience in maintenance and low requirements on using environment, has the characteristics of flexibility in degree of freedom and resiliency in acting force, has good flexibility in adaptivity, can grip objects with varying shapes and sizes, and belongs to the technical field of application of robots and mechatronics.

The invention provides a deformation monitoring method based on vision measurement, and belongs to the technical field of deformation monitoring. The deformation monitoring method comprises the following steps that the mark plate of deformation monitoring is designed, wherein the mark plate is formed by a white baseplate and four black circular sheets which are arranged on the baseplate, the boundaries of the circular sheets cannot be tangent, intersected or overlapped, the connecting line of the center of the circle of the two circular sheets is a first connecting line, the connecting line of the center of the circle of the rest two circular sheets is a second connecting line, and the first connecting line and the second connecting line are perpendicular and intersected; characteristic contour models of different resolutions are established; subsequent images of different time points are acquired, and the elliptic center coordinates on the subsequent images, i.e. the coordinates of mark points, are accurately extracted; and the displacement of the mark points in the subsequent images is calculated, and the calculated displacement is corrected so that the actual displacement of the mark points is obtained. The deformation monitoring method based on vision measurement is easy to operate, high in degree of automation, low in cost, high in precision, simple in data processing and high in efficiency.

The invention relates to an automatic silicon rod bonding production line which solves the problems that the labor intensity of operators is high, the production efficiency is extremely low, the production rhythm cannot be guaranteed, and the continuous production is seriously influenced in the prior art. The automatic silicon rod bonding production line comprises a conveying line and a conveying tray and is characterized in that an automatic crystal support loading unit, a crystal support cleaning unit, a crystal support gluing unit, an automatic glass loading unit, a glass pressurizing unit, a glass cleaning unit, an online glass gluing unit, an automatic silicon rod loading unit and an automatic unloading unit are sequentially along the conveying direction of the conveying line, wherein the automatic crystal support loading unit comprises a sliding loading device and an intelligent transplanting device; the automatic glass loading unit comprises a double-station glass loading device and a loading manipulator; the automatic silicon rod loading unit comprises a loading conveying device and a double-claw transplanting device; and the automatic unloading unit comprises a transplanting platform and a transplanting manipulator. The automatic silicon rod bonding production line reasonable in design, compact in structure, high in degree of automation and capable of realizing full mechanical loading, conveying and unloading and continuous production.

The invention discloses a spherical contact type friction characteristic testing device under ultrasonic vibration. The device consists of a main movement unit, a loading unit and a dynamometer unit, wherein the torque output by a step motor is converted into axial pressure of a sliding table through a lead screw nut pair of a trapezoidal screw, and an upper sample and a lower sample which are arranged at the bottom of a piezoelectric micromachined ultrasonic transducer are contacted with each other, and certain pressure is applied to the lower sample; when the piezoelectric micromachined ultrasonic transducer is connected with an ultrasonic power supply, the upper sample produces ultrasonic frequency vibration with micron-grade amplitude in the horizontal direction or the vertical direction, the lower sample rotates together with a rotating platform and forms a friction pair with the upper sample, so that the friction characteristic of the spherical contact under ultrasonic vibration can be tested. The device can be used for accurately controlling the testing parameters, is high in degree of automation, and can be used for performing spherical contact friction experiments of various types of friction materials under different ultrasonic vibration frequencies and vibration amplitudes.

The invention discloses a preparation method for a two-dimensional sheet-shaped titanium dioxide nanosheet material. The preparation method comprises the following steps: soaking three-dimensional laminated Ti3AlC2 powder in an aqueous solution of HF at a room temperature, and removing an Al atom layer by use of a chemical liquid-phase dissection method to prepare a two-dimensional Ti3C2 nanosheet with laminated characteristics still kept; then, placing Ti3C2 in a tubular furnace, ventilating a gas mixture of flowing oxygen gas and argon gas after vacuumizing, realizing in-situ oxidization of the two-dimensional Ti3C2 nanosheet at a high temperature, then cooling, taking out powder, and grinding to obtain the TiO2 nanosheet. According to the preparation method disclosed by the invention, any organic solvent and additive are not needed to be added in the preparation process, process parameters are stable, the procedure is simple, the process is controllable, the efficiency is high and the cost is low; the prepared two-dimensional titanium dioxide nanosheet has transverse dimension of 5-10 microns, and single-layer average thickness of 50 nanometers; the prepared rutile type titanium dioxide nanosheet is high in purity and good in degree of crystallinity, and only contains very little antase phase.

The invention discloses a full-automatic device capable of staining tin, riveting a terminal and inserting a plastic shell for a connecting line. The full-automatic device comprises a pay-off rack, a line feeding component, a stripping and cut-off component, a line twisting component, a scaling powder gluing component, a tin applying component, a line stripping component, a terminal riveting die, a rotary plastic shell delivery component, a rotary material clamping component, a plastic shell inserting component, a first line clamping component and a second line clamping component, wherein the line feeding component is driven by a line feeding horizontal mobile platform; the line feeding horizontal mobile platform comprises a line feeding X-axis driving mechanism and a line feeding Y-axis driving mechanism; the stripping and cut-off component comprises a stripping cut-off mounting rack, a stripping cutter, a cut-off cutter and a stripping and cut-off driving mechanism; the first line clamping component is driven by a three-dimensional mobile platform; the three-dimensional mobile platform comprises a first clamp X-axis driving mechanism, a first clamp Y-axis driving mechanism and a first clamp Z-axis driving mechanism; the second line clamping component is driven by a second clamp X-axis driving mechanism. Through the structural design, the full-automatic device can automatically and efficiently stain tin, rivet the terminal and insert the plastic shell for the connecting line, is high in degree of automation and working efficiency, and saves labor force.

As a traditional bamboo joint removing method is low in degree of mechanization and production efficiency, and consumes time and labor, the invention discloses a slitting and bamboo joint removing integrated machine for a bamboo billet cylinder, which aims to improve the production efficiency of bamboo processing, belongs to the technical field of processing machinery of bamboo products, and comprises a circular cutter, a solid cylinder, a solid circular cone, an outer cylinder, outer cylinder inner plates, an annular cutterhead, a cutter, a movable baffle plate, a power device, a fixing device, a receiving device, a feeding device and other devices that all form a complete machine. The slitting and bamboo joint removing integrated machine for the bamboo billet cylinder is a novel bamboo joint removing machine for the bamboo billet cylinder, and slits the bamboo billet cylinder and removes bamboo joints at the same time, so as to achieve the purposes of labor conservation and production time conservation, and meet the processing requirement for batch production at the same time.

The invention discloses a modularized reconstructible soft rope parallel mechanism experiment platform. The platform is characterized by comprising a horizontally-arranged circular-ring-shaped guide rail, two to six groups of soft rope supporting columns capable of moving along the circular-ring-shaped guide rail and capable of extending and contracting vertically are arranged on the circular-ring-shaped guide rail, the soft rope supporting columns are extensible hydraulic cylinders vertically arranged on a base, a fixed pulley is arranged at the top end of each hydraulic cylinder, winches are fixedly arranged on the base, one ends of soft ropes are wound and unwound by the winches while the other ends of the same bypass the fixed pulleys and are connected on connecting points at corresponding positions of an end effector, the connecting points correspondingly connected with the soft ropes in a one-to-one manner are positioned at different positions of the end effector, the base can move on the circular-ring-shaped guide rail according to a circular-ring-shaped track, and the end effector is taken as a controlled object to realize different degrees of freedom. The modularized reconstructible soft rope parallel mechanism experiment platform is rich in module tye, parallel connection of various parameter-variable soft ropes different in degree of freedom can be realized, large-load running and high-performance movement output can be realized for performing operation experiments of large-range working space, and the platform can be used for studying kinematic and dynamic performance of various soft rope parallel mechanisms different in structure and of degree of freedom from one to six.

The invention relates to an automatic stringer which comprises a power transmission device, an automatic meat slicing device with a propelling automatic meat locking box, a knurling tool meat cutting device, a shearing and feeding device and an automatic prod punching device, wherein the device integrates slicing, slitting, bar-cutting and prod-stringing, so that the production efficiency is improved, automation and multi-functionalization can be further realized, the automatic stringer is multipurpose, and the consumption of manpower and material resources as well as financial resources is greatly reduced. The automatic stringer not only can string meat, but also can string various foods such as balls and the like. Moreover, meat in different thicknesses and different sizes can be stringed. The mechanical degree and the production efficiency are improved, and the automatic stringer is easy to operate and maintain, low in cost, small in size and high in degree of automation.

A device is disclosed for providing an indication as to the relative position of a vessel or artery opening thereby facilitating the choice of which suturing or plugging technique to thereafter use. A disclosed device includes an outer tube and a collapsible foot slidably disposed within a distal end of the outer tube. The foot is connected to a shaft that passes through the tube and exits a proximal end thereof. The device may further include one or more threaded suture needles, a biodegradable plug or other wound closing device that is connected to another shaft. The collapsed or folded foot is pushed distally out of the tube and through the opening in the vessel whereupon the foot expands. Pulling the expanded foot in the proximal direction provides an indication as to the orientation of the opening in the vessel, which assists in determining the type of closing procedure to be carried out. The shaft connected to the foot is preferably connected to an indicator that indicates to the operator or physician that the vessel opening is in one of three positions on the vessel—left, top or right. As an alternative, the indicator bar may indicate a relative position in degrees, mm or μm in deviation from a top stick (or top position).

The invention discloses an adaptive spatial clustering method, comprising the following steps of: (1) preprocessing spatial data and selecting features; (2) creating a Delaunay triangulation network according to spatial attribute; (3) performing clustering analysis operations according to the spatial attribute; (4) turning to a step (5) if a spatial solid obstacle is needed to be further considered, and turning to a step (6) if a thematic attribute is needed to be considered, otherwise, ending the spatial clustering operations; (5) introducing a spatial obstacle layer, performing overlap analysis on the spatial obstacle and the side length of the Delaunay triangulation network between the entities in each spatial cluster, and breaking the side length if the spatial obstacle is intersected with the side length; (6) performing the thematic attribute clustering by an improved density-based spatial clustering method; (7) visualizing the clustering result, and outputting the clustering result. The adaptive spatial clustering method is simple and convenient to operate, high in degree of automation, high in calculation efficiency, perfect in functions, strong in applicability and the like, and can effectively improve capability of spatial clustering analysis to excavate deep-seated geoscience rules.

The invention relates to a plasma atomization method and apparatus for preparing spherical pure titanium or titanium alloy powder, and belongs to the technical field of preparation of titanium or titanium alloy powder. The plasma atomization method for preparing pure titanium or titanium alloy powder comprises the following steps of (1) preparing a titanium wire or titanium alloy wire with the diameter ranging from 3 millimeters to 20 millimeters, (2) using a plasma torch to fuse and atomize the titanium wire or titanium alloy wire in an atomization bin with an argon atmosphere to obtain atomized pure titanium particles or titanium alloy particles, and (3) feeding argon flow with the temperature ranging from 300 DEG C to 500 DEG C into the atomization bin, carrying out laminar cooling on the atomized pure titanium particles or titanium alloy particles to obtain pure titanium or titanium alloy powder. The obtained powder is good in degree of sphericity and low in the content of satellite balls, and has the advantages of being uniform in size distribution, high in purity and degree of sphericity, good in liquidity, low in oxygen content and impurity content, free of bond or cluster phenomenon and the like. The prepared titanium powder can be widely applied to the forming manners such as metal additive manufacturing, powder injection moulding and hot isostatic pressing for manufacturing parts with high precision.

The invention provides an intelligent regulation method for display screen backlight brightness, which is characterized by comprising the following steps of: presetting a reference table in which display screen backlight values and environment light brightness valves correspond; acquiring the current environment light brightness valve, and setting the display screen backlight value according to the reference table; when a user feels that the display screen backlight brightness is not proper, performing manual setting; and after confirmation is ended, updating the new display screen backlight value into the reference table and enabling the new display screen backlight value to correspond to the current environment light brightness valve. The invention also provides a system for implementing the method, which is characterized by comprising a photosensitive module, a matching module, a light control module, a manual regulation module and an updating module. According to the intelligent regulation method for the display screen backlight brightness, not only can the automatic regulation function of the display screen backlight brightness be utilized but also the personal requirements of different users can be met, and thereby, the man-machine running-in degree is increased, and the comfort requirements of the users on visual sensation can be met.

The invention discloses a preparation method of a cadmium selenide or cadmium sulfide two-dimensional monocrystal nanosheet. The method comprises the steps that the CdSe or CdS two-dimensional monocrystal nanosheet is prepared through a van der Waals epitaxial growth technology, the method is characterized in that a mica sheet which is smooth in surface and free of chemical dangling bond is adopted to serve as a substrate, CdCl2 powder or Se powder or S powder serves as a source material, argon serves as carrier gas, CdCl2 stream is reacted with Se or S steam to form CdSe or CdS steam at high temperature, and the steam is deposited on the mica sheet for nucleation and epitaxially grows into the CdSe or CdS two-dimensional monocrystal nanosheet. The preparation method of the cadmium selenide or cadmium sulfide two-dimensional monocrystal nanosheet is easy to operate, low in cost and strong in controllability, the obtained CdSe or CdS has the advantages of being good in size uniformity, high in degree of crystallinity and the like, and important research value and wide application prospect in the fields of solar cells, field effect transistors, photoelectric detectors, photocatalyses and the like are achieved.