542 results about "Scale structure" patented technology

The invention relates to a micro-interface enhanced reactor bubble scale structure-activity regulation and control model building method. The diameter dmax of the largest bubble of a micro-interface enhanced reactor and the diameter dmin of the smallest bubble of the micro-interface enhanced reactor serve as independent variables, the average diameter d32 of the bubble Sauter serve as a dependentvariable, and a numerical relationship is built; based on the Kolmogorov-Hinze theory, the relationship between the diameter dmax of the largest bubble of the micro-interface enhanced reactor, the diameter dmin of the smallest bubble and the parameters of the reactor is built. According to the method, the reactor bubble scale is associated with the structural parameter, the operation parameter andthe physical property parameter of the reactor by using specific numerical relationship, the numerical relationship has the guiding significance for the design of the reactor and can be applied to avariety of reactors, the versatility is good, by means of a bubble scale regulation and control model built through the method, by adjusting the structural parameter and the operation parameter of thereactor, and the maximization of energy efficiency and material efficiency in the reaction process can be achieved, or under the condition that reaction targets, energy consumption and material consumption are given, a high-efficiency reactor structure is designed.

A method for brain tumor segmentation in multi-parametric 3D magnetic resonance (MR) images, comprising: determining, for each voxel in the multi-parametric 3D MR image sequence, a probability that the voxel is part of brain tumor; extracting multi-scale structure information of the image; generating multi-scale tumor probability map based on initial tumor probability at voxel level and multi-scale structure information; determining salient tumor region based on multi-scale tumor probability map; obtaining robust initial tumor and non-tumor label based on tumor probability map at voxel level and salient tumor region; and generating a segmented brain tumor image using graph based label information propagation. The present invention is capable of achieving statistical reliable, spatially compact, and robust tumor label initialization, which is helpful to the accurate and reliable tumor segmentation. And the label information propagation framework could partially alleviate the performance degradation caused by image inconsistency between images to be segmented and training images.

A wafer scale semiconductor integrated circuit packaging technique provides a hermetic seal for the individual integrated circuit die formed as part of the wafer scale structure. A semiconductor wafer is manufactured to include a number of individual semiconductor die. Each individual die formed on the wafer includes a number of bond pads that are exposed on the die surface in various locations to provide electrical connections to the circuitry created on the die. The wafer further includes a planar glass sheet that is substantially the same size as the wafer, the glass sheet being adhered to the wafer using a suitable adhesive. The glass sheet has a number of pre-formed holes in it, the arrangement of the pre-formed holes corresponding to the location of the bond pads at each of the individual semiconductor die formed as part of the wafer structure. Following adherence of the glass sheet to the semiconductor wafer utilizing the intermediate adhesive material, metal connections are made between pads formed on the glass sheet and the bond pads formed on the integrated circuit die. Solder balls are then attached to the pads on the glass sheet to provide a conductive flow between the solder balls and the bond pads. After the solder balls are attached, trenches are cut around each of the individual die on the wafer. The trenches are cut at an angle and extend through the glass sheet and the intermediate adhesive material and into the semiconductor substrate in which the integrated circuits are formed. After the trenches are cut around each individual semiconductor die, a noble metal is deposited on the sidewalls of the trench to extend over the interface between the glass sheet, the adhesive material and the semiconductor die. The wafer is then cut along the noble metal lined trenches to provide individual, hermetically sealed packaged integrated circuit die.

A “near wellbore modeling” software will, when executed by a processor of a computer, model a localized area of a reservoir field which surrounds and is located near a specific wellbore in the reservoir field by performing the following functions: (1) receive input data representative of a reservoir field containing a plurality of wellbores, (2) establish a boundary around one specific wellbore in the reservoir field which will be individually modeled and simulated, (3) impose an “fine scale” unstructured grid inside the boundary consisting of a plurality of tetrahedrally shaped grid cells and further impose a fine scale structured grid about the perforated sections of the specific wellbore, (4) determine a plurality of fluxes/pressure values at the boundary, the fluxes/pressure values representing characteristics of the reservoir field located outside the boundary, (5) establish one or more properties for each tetrahedral cell of the unstructured grid and each cylindrical grid cell of the structured grid, (6) run a simulation, using the fluxes/pressure values at the boundary to mimic the reservoir field outside the boundary and using the fine scale grid inside the boundary, to thereby determine a plurality of simulation results corresponding, respectively, to the plurality of grid cells located inside the boundary, the plurality of simulation results being representative of a set of characteristics of the reservoir field located inside the boundary, (7) display the plurality of simulation results which characterize the reservoir field located inside the boundary, and (8) reintegrate by coarsening the grid inside the boundary, imposing a structured grid outside the boundary, and re-running a simulation of the entire reservoir field.

A nanometer-scale mask includes a periodic array of nanometer-scale structural elements comprising an inorganic oxide.

A method of producing a catalyst material with nano-scale structure, the method comprising: introducing a starting powder into a nano-powder production reactor, the starting powder comprising a catalyst material; the nano-powder production reactor nano-sizing the starting powder, thereby producing a nano-powder from the starting powder, the nano-powder comprising a plurality of nano-particles, each nano-particle comprising the catalyst material; and forming a catalyst precursor material from the nano-powder, wherein the catalyst precursor material is a densified bulk porous structure comprising the catalyst material, the catalyst material having a nano-scale structure.

The invention relates to the technical field of laser microprocessing, in particular to a method for obtaining a metal-based ultra-wetting surface by designing the trans-scale structure of a metal surface, preparing a laser microstructure on the metal surface and carrying out necessary ultra-wetting decoration to the metal surface. The method comprises the following steps: firstly, designing a macroscopical large-area superficial periodical mastoid structure which simulates a locus leaf surface; constructing a micronano periodical structure on the microstructure of the mastoid structure to obtain a macroscopical-micronano trans-scale geometric model; adjusting laser parameters and a laser scanning path according to geometric parameters acquired after the bionic metal ultra-wetting trans-scale structure is designed; scanning the plane first time; rotating a sample 90 degrees; and scanning the plane again with low-energy laser. The trans-scale microstructure approaches to the surface appearance of a natural organism, is easy to calculate and analyze a contact angle and has a simple and controllable preparation process.

A microstructural polarized light-guide device comprises an unpolarized light source module, a subwavelength polarization beam splitter structure and a polarization conversion module, the unpolarized light source module comprises a light-guide plate and a light source at the edge of the light-guide plate, the material of the light-guide plate is PMMA with the characteristic of high transparency, the surface of the light-guide plate has a plurality of extraction patterns, the polarization beam splitter structure is a nano-scale structure and comprises a dielectric nanograting layer and a metallic nanograting layer, and the dielectric nanograting layer and the metallic nanograting layer are vertically stacked with each other, the dielectric nanograting layer is integrated with a surface opposite to the surface with the plurality of extraction patterns, the polarization conversion module is disposed on the surface with the plurality of extraction patterns of the light-guide plate.

An absolute position-sensing device is usable to measure the relative position of two elements. An absolute scale includes an integrated track extending along a measuring axis of the scale. The integrated track includes a plurality of periodic portions interleaved with a plurality of non-periodic portions. Each periodic portion includes a plurality of periodically-placed scale elements. Each non-periodic portion includes a plurality of code elements indicative of an absolute measurement value. The code elements may have a length that is narrower along the measuring axis than the length of the periodic scale elements. The offset of the periodic-placed elements relative to a readhead of the device is combined with the absolute measurement value to determine an absolute position.

The invention provides a scale measuring device for a pitching dynamic derivative experiment. An electric motor is arranged in a motor support rod; a motor output shaft is connected with a transmission shaft via a speed reducer and a shaft coupling; the transmission shaft is rotationally connected with a scale support rod; the rear end of the scale support rod is fixedly connected with the front end of the motor support rod; the front end of the transmission shaft is provided with an eccentric wheel which is provided with a lug; the lug is inserted into a sliding chute of a slide block; upper and lower cross springs of a cross spring scale have a crisscross structure respectively, and the front and rear ends thereof are fixedly connected with a scale frame via a front seat; and central positions of the upper and lower cross springs are provided with supporting cylinders. The scale measuring device for the pitching dynamic derivative experiment is a novel pitching dynamic derivative scale device. A pitching direct derivative of an aerial craft and a rolling crossover derivative induced by yaw oscillation can be measured under a big attack angle by designing a special vibrating mechanism, the cross spring scale and a pitching five-component scale structure. The scale measuring device for the pitching dynamic derivative experiment can meet the requirement of a wind tunnel trial.

An air cooled turbine airfoil having micro cooling air passages formed within the airfoil that is of such size that the present day investment coating process cannot be used. The internal cooling air features of the airfoil are formed using the Tomo Lithographic Molding (TLM) process. The TLM process is a low pressure casting process that can produce precise micro-features integral to macro-scale structures using any of the exotic alloys or other metallic materials currently being used in airfoil production. The normal internal cooling air passages as well as very small features such as trip strips, pin fins, dimples, pedestals and enclosed passages such as film holes can be produced using the TLM process.

A nano-imprint mold and a method of manufacturing the same are provided, which can be used for replicating a nano-scaled structure to a polymer layer. The nano-imprint mold comprises: a substrate; a pattern portion having a prominence and depression pattern formed on the substrate; a hard layer formed of a material with a hardness higher than the pattern portion on a surface of the pattern portion; and a separation layer formed on a surface of the hard layer. In the nano-imprint mold of the present invention, an original pattern can be uniformly replicated even on a substrate with an irregular surface. Further, the pattern can be prevented from being damaged by pressure and being contaminated by synthetic resin, resulting in better accuracy and durability of the pattern.

The invention relates to a method for design advanced materials with nano-scaled structure and techniques for preparing same. In particular, the invention relates to a carbon material capable of controllable laminated combination with the nano-holes of variable sizes and preparation and application thereof. The method comprises the steps of: preparing metal oxide sol in the alkali solution system, which is then mixed with an alcohol solution of an alcohol-soluble resin; the oxide sol being used as the template and water being the resin precipitation agent during the process to directly prepare resin/oxide sol composite system. After solvent removal, carbonization, activation and template removal processes, the carbon material with laminated nano-holes combination is prepared which is of controllable micro-holes proportion, controllable medium-holes aperture and proportion, controllable big-holes aperture and propotion and concentrated distribution of medium-holes and big-holes apertures. The carbon material capable of controllable laminated combination with the nano-holes of variable sizes prepared in the invention is characterized in laminated holes structure, excellent ion transfer performances and high electrochemical active specific surface area and the material is expected to be used as high energy density high power density electrochemical capacitor used electrode material.

Novel structures of photovoltaic cells (also treated as solar cells) are provided. The cells are based on nanometer-scaled wires, tubes, and/or rods, which are made of electronic materials covering semiconductors, insulators or metallic in structure. These photovoltaic cells have large power generation capability per unit physical area over the conventional cells. These cells will have enormous applications in space, commercial, residential, and industrial applications.

The invention relates to a laser amplification measurement method of the deformation of a twisted structure by utilizing laser. The technical proposal of the invention is as follows: a support is arranged on a rotation angle part to be measured of the twisted structure to be measured, a laser beam transmitter is arranged on the support, a scale optical target is set, when the twisted structure to be measured is displaced or twisted, a laser beam which is transmitted by the laser beam transmitter is displaced at a projection point on the optical target, a deformation valve of the rotation angle or a twist angle of a measurement point of the twisted structure to be measured is obtained according to the formula that Theta is equal to arctg (Delta divided by L), and the stiffness parameters of the twisted structure to be measured is calculated, thereby obtaining the tiny rotation deformation amount of the point to be measured. The shortcoming that the non-contact measurement instruments are always lack of precision on the long-distance measurement of the tiny deformation of large-scale structures is solved. The laser amplification measurement method of the invention arranges the measurement instrument on a measured object to allow the measurement instrument to move together with the deformed part of the measured object, thereby having the advantage that the tiny displacement to be measured is fully amplified by utilizing the optical lever principle.

The invention provides a structured network system applicable to the future internet, which constructs and maintains a plurality of concomitant structured networks (SNs) on a physical network through a virtual layer. The system can construct the structured future internet on a large-scale structure-free network, adopt globally unified and simple addressing, route and inquiring mechanisms, and enable route inquiring time, network interoperability or interconnection, content distribution efficiency and service obligation to be greatly improved. Practical examples of the structured network comprise hypercube networks, artificial neural networks and Batcher networks. Achieved functions comprise content/service addressing, semanteme searching, and mobile supporting, safe service based on positions, multicast, intrusion detection, network measurement, data fusion, webpage grading and flow load balancing.

The invention relates to a multi-scale capillary core flat plate loop heat pipe type heat-dissipation device, and belongs to the technical field of phase transition heat dissipation. The heat-dissipation device comprises an evaporating part, a condensing part, a compensating cavity, a gas phase pipeline and a liquid phase pipeline, wherein the gas phase pipeline is connected with the evaporating part and the condensing part, and the liquid phase pipeline is connected with the condensing part and the compensating cavity; a base plate of the evaporating part is in a flat plate shape, metal powder is sintered to form two layers of multi-scale capillary cores at the upper surface of the base plate, and a steam channel is constructed between the two layers of capillary cores; a layer of water absorption cotton tightly covers a second layer of capillary cores and is taken as a third layer of capillary cores, and the three layers of capillary cores form a multi-scale structure. By utilizing the multiple layers of multi-scale capillary cores and the constructed steam channel, the problem of the contradictoriness between the vapor-liquid flow resistance and the capillary suction force is solved, the starting temperature of a loop heat pipe is lowered, the high heating flux bearing capacity of the heat-dissipation device is improved, and the instability in heat transfer is reduced; the multi-scale capillary core flat plate loop heat pipe type heat-dissipation device has the advantages of high cooling capacity, large heat flux bearing capacity, low starting temperature, small temperature fluctuation, good antigravity performance and long transmission distance.

The invention discloses a method and a device thereof for measuring three-dimensional topography of a nano structure, which can simultaneously measure three-dimensional topography parameters such as line width, depth, side corner, line edge roughness, line width roughness and the like of the nano structure. The method comprises the following steps of: performing splitting, polarization and front and back phase compensation on light beams with wavelengths in ultraviolet to near-infrared wave band to obtain elliptical polarized light and projecting the elliptical polarized light for later measurement; acquiring surface reflected zero-level diffraction signals of the to-be-measured structure, and obtaining a measurement Mueller matrix of the nano structure by calculation; and matching the measurement Mueller matrix and a theoretical Mueller matrix, and obtaining a three-dimensional topography parameter value of the to-be-measured nano-scale structure. The device provided by the invention for measuring the three-dimensional topography parameter of the nano structure can provide a non-contact, nondestructive, low-cost and quick measurement means for one-dimensional and two-dimensional sub-wavelength periodic structures in processes of photo-etching, nano impressing and the like of an image transfer-based batch manufacturing method.

The invention discloses a method of regulating and controlling light absorption property of a metal surface by picosecond pulse laser. The method comprises the following steps: irradiating the metal surface by picosecond pulse laser; carrying out laser ablation for removal and self-assembly of the metal surface induced by picosecond pulse laser to obtain a micro-nano dual-scale structure on the metal surface thus realizing regulation and control of the light absorption property of the metal surface. The method disclosed by the invention fully exerts a picosecond laser preparation rule or the micron structure in random distribution as well as capacity of forming the self-assembled nanostructure, and is agile and controllable in processing process, low in processing cost and high in efficiency, so that the method is an economical and practical method of regulating and controlling the light absorption property of the metal surface.

An automatic collimation surveying apparatus is provided with a collimation camera optical system (47) of a high magnification ratio; a wide-angle CCD camera optical system (89) having a wide field of view; a touch-panel display (64) for displaying an image picked up by both CCD camera optical systems; an image processing unit (60) for discriminating points of measurement from the above-described image; a touch-pen for pointing out points of measurement on the above-described image; and an automatic collimation unit (69) for automatically collimating the pointed-out points of measurement. In addition, illumination light from light source (80) is concurrently used as collimation light and is aligned so as to be emitted along the collimation axis (O) of a collimation camera optical system. The surveying apparatus can be remotely controlled from a measurement controller such as a peripheral personal computer. The surveying apparatus allows a number of point-of-measurement positions to be efficiently measured on a large-scaled structure by a single operator.

The invention belongs to a nondestructive detection technology and relates to an industrial scale ultrasonic automatic scanning and imaging detection device used for large-scale structures made of composite materials and metal materials in the fields of aviation, aerospace, electronics, weapons, ships, metallurgy, iron and steel, transportation, construction and the like. The detection device comprises an ultrasonic automatic scanning system, an ultrasonic automatic scanning control and imaging system and a multi-channel ultrasonic system. The design according to the invention adopts a multi-axis parallel numeric control upward floating type super-static steady scanning mechanism and an ultrasonic flexible self-adaptive tracking array acoustic scanning technology, thereby greatly improving the ultrasonic automatic scanning and imaging detection efficiency and the imaging quality of the large-scale structures, realizing the industrial scale high-efficient ultrasonic automatic scanning and imaging detection of the large-scale structures made of the composite materials and the like in different specifications and enabling the detection resolution and a surface blind zone to achieve 0.13mm; and when 20 channels are detected, the efficiency is improved by at least 50 times compared with the manual scanning detection efficiency, and is improved by 20 times compared with the traditional single-channel ultrasonic automatic scanning detection.

The invention provides a fiber bragg grating sensor network based large-scale structure body deformation measurement method which aims to detect the condition of deformation of a large-scale structure body which is stressed by an external force or an internal force and real-timely monitors health conditions of the large-scale structure body. The fiber bragg grating sensor network based large-scale structure body deformation measurement method includes arranging a fiber bragg grating sensor network on a structure body to be detected, using a fiber bragg grating strain sensor to detect strain borne by the structure body, using a fiber bragg grating temperature sensor as temperature compensation of the strain sensor, interpolating detected disperse strain data into polynomials, performing twice integration, and bringing in initial conditions to obtain a deformation curve of the structure body. The fiber bragg grating sensor network based large-scale structure body deformation measurement method is mainly used for monitoring health conditions of the large-scale structure body and is suitable for large-scale networking; compared with traditional resistance strain gages for measuring strain of the structure body, the fiber bragg grating sensor network based large-scale structure body deformation measurement method has the advantages that defects that resistance strain gages are difficult to network and prone to be interfered by electromagnets and many shield cables are heavy are overcome.