1087 results about "Macroscopic scale" patented technology

Powerful nanosecond-range lasers using low repetition rate pulsed laser deposition produce numerous macroscopic size particles and droplets, which embed in thin film coatings. This problem has been addressed by lowering the pulse energy, keeping the laser intensity optional for evaporation, so that significant numbers of the macroscopic particles and droplets are no longer present in the evaporated plume. The result is deposition of evaporated plume on a substrate to form thin film of very high surface quality. Preferably, the laser pulses have a repetition rate to produce a continuous flow of evaporated material at the substrate. Pulse-range is typically picosecond and femtosecond and repetition rate kilohertz to hundreds of megahertz. The process may be carried out in the presence of a buffer gas, which may be inert or reactive, and the increased vapour density and therefore the collision frequency between evaporated atoms leads to the formation of nanostructured materials of increasing interest, because of their peculiar structural, electronic and mechanical properties. One of these is carbon nanotubes, which is a new form of carbon belonging to the fullerene (C60) family. Carbon nanotubes are seamless, single or multishell co-axial cylindrical tubules with or without dome caps at the extremities. Typically diameters range from 1 nm to 50 nm with a length >1 mum. The electronic structure may be either metallic or semiconducting without any change in the chemical bonding or adding of dopant. In addition, the materials have application to a wide range of established thin film applications.

The present invention provides an illumination optical system that enables the direction and mixing of light from light emitting devices. The optical system comprises a plurality of light emitting devices that are spatially arranged in an array, wherein this array comprises one or more sections, such that the light emitting devices in a particular section emit light within a predetermined wavelength range. Through the use of a combination of macroscopic and microscopic optical systems, the illumination created by the array can be manipulated such that a desired illumination distribution is created. The macroscopic optical system provides a means for redirecting the illumination in one or more desired directions, wherein this redirection is provided by a collection of appropriately shaped and positioned reflective optics. Subsequent to its interaction with the macroscopic optical system, the illumination is manipulated by a microscopic optical system that enables the diffusion of the illumination in a predetermined manner, while retaining the desired angular distribution of the illumination created by the macroscopic optical system. Through the appropriate design and orientation of both the macroscopic and microscopic optical systems, a desired illumination effect can be created.

Ion manipulation systems include ion repulsion by an RF field penetrating through a mesh. Another comprises trapping ions in a symmetric RF field around a mesh. The system uses macroscopic parts, or readily available fine meshes, or miniaturized devices made by MEMS, or flexible PCB methods. One application is ion transfer from gaseous ion sources with focusing at intermediate and elevated gas pressures. Another application is the formation of pulsed ion packets for TOF MS within trap array. Such trapping is preferably accompanied by pulsed switching of RF field and by gas pulses, preferably formed by pulsed vapor desorption. Ion guidance, ion flow manipulation, trapping, preparation of pulsed ion packets, confining ions during fragmentation or exposure to ion to particle reactions and for mass separation are disclosed. Ion chromatography employs an ion passage within a gas flow and through a set of multiple traps with a mass dependent well depth.

Bipolar wave current, with both positive and negative current portions, is used to electrodeposit a nanocrystalline grain size deposit. Polarity Ratio is the ratio of the absolute value of the time integrated amplitude of negative polarity current and positive polarity current. Grain size can be precisely controlled in alloys of two or more chemical components, at least one of which is a metal, and at least one of which is most electro-active. Typically, although not always, the amount of the more electro-active material is preferentially lessened in the deposit during times of negative current. The deposit also exhibits superior macroscopic quality, being relatively crack and void free. Parameters of current density, duration of pulse portions, and composition of the bath are determined with reference to constitutive relations showing grain size as a function of deposit composition, and deposit composition as a function of Polarity Ratio, or, perhaps, a single relation showing grain size as a function of Polarity ratio. A specified grain size can be achieved by selecting a corresponding Polarity Ratio, based on these relations. Coatings can be in layers, each having an average grain size, which can vary layer to layer and also in a region in a graded fashion. Coatings can be chosen for environmental protection (corrosion, abrasion), decorative properties, and for the same uses as a hard chrome coating. A finished article may be built upon a substrate of electro-conductive plastic, or metal, including steels, aluminum, brass. The substrate may remain, or be removed.

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 new high resolution confocal and non-confocal scanning laser macroscope is disclosed which achieves fine focus and control of focus position by moving a lens in the intermediate optics. This arrangement is particularly useful for imaging specimens where it is difficult to focus by changing the distance between the scan lens and the specimen, for example for in-vivo imaging, photodynamic therapy, and image-guided surgery. It is also important to keep the lens-to-specimen distance constant when a liquid-immersion scan lens is used, in order to maintain a constant thickness of liquid between the lens and the specimen. In addition to being useful for confocal slicing, motion of the intermediate lens under computer control also enables dynamic focus and the ability to move the focal spot along a general path inside the specimen. Several applications of the imaging system are described. The macroscope images macroscopic specimens in reflected light, transmitted light, fluorescence, photoluminescence and multi-photon fluorescence.

The invention provides a large diameter aspheric measuring device based on ultra-precision rotary scan and a method, belongs to the macroscopic measuring technology. The device comprises an ultra-precision air flotation turntable, a precision angle and angle measuring system, an ultra-precision linear air flotation guide, a length-measuring device and a gradient measurement system. The gradient measurement system comprises a linear polarization He-Ne laser or a semiconductor laser, a diffraction element, a scanning head and an image receiving unit. The linear polarization He-Ne laser or the semiconductor laser and the image receiving unit are separately fixed on the two sides of the base beam. The scanning head is fixed on the ultra-precision linear air flotation guide. The scanning head comprises a radial gradient measurement sub-scanning head and a tangential gradient measurement sub-scanning head, both of which comprise an error compensation light path. The working platforms of the two sub-scanning heads are orthogonal to each other. The invention discloses a large diameter aspheric measuring method based on ultra-precision rotary scan.

The invention provides a multi-dimensional parameter assessment method of an aging degree of a running composite insulator. The method comprises the following steps: firstly measuring hardness, hydrophobicity, a surface defect area, an infrared absorption peak corresponding to a Si-O-Si group, a trap charge amount and a flashover voltage of a high-temperature vulcanized silicone rubber test sample of an umbrella skirt of a target composite insulator; then performing quantitative processing on the measured data, and scoring the aging degrees of the processed feature parameters; performing weighted summation on the scores of the feature parameters to obtain a comprehensive feature parameter characterizing the aging degree of the composite insulator; and finally determining the aging degree of the insulator according to a corresponding relation between the size of the comprehensive feature parameter and the grade of the aging degree. According to the multi-dimensional parameter assessment method provided by the invention, the microscopic electrical characteristics and microscopic physical and chemical characteristics of the umbrella skirt material of the composite insulator are combined with macroscopic characteristics to realize the comprehensive assessment of the aging degree of the composite insulator. By adoption of the method, the one-sidedness of the traditional assessment method is avoided, and thus the accuracy of an assessment result is guaranteed.

The invention relates to a cross-scale micro nanometer grade in-situ composite load mechanical property testing platform, belonging to electromechanics. The cross-scale micro nanometer grade in-situ composite load mechanical property testing platform is composed of a precision drive and transmission unit, a signal detection and control unit and a clamping, connecting and supporting unit, wherein,in the precision drive and transmission unit, a DC servo motor provides power output, and a two-stage worm and gear mechanism with large reduction ratio and a precision ball screw mechanism transmit power; the signal detection and control unit is composed of a precision displacement sensor, a precision pull pressure sensor and a coder in coaxial rigid connection with the DC servo motor; and the clamping, connecting and supporting unit comprises a clamper component for locating and mounting a standard test specimen, and the like. The cross-scale micro nanometer grade in-situ composite load mechanical property testing platform can be compatible with imaging instruments, and performs a cross-scale in-situ micro nanometer composite load test on a macroscopic test specimen through observation via the imaging instruments, so as to perform in-situ monitoring on processes of microscopic deformation, injury and fracture of materials, so that a new testing method for revealing the mechanical properties and the injury mechanism of the materials at the micro nanometer grade is provided.

The present disclosure relates generally to the field of sequential surface chemistry. More specifically, it relates to products and methods for manufacturing products using Atomic Layer Deposition (“ALD”) to depose one or more materials onto a surface. ALD is an emerging variant of Chemical Vapor Deposition (“CVD”) technology with capability for high-quality film deposition at low pressures and temperatures, which may produce defect-free films, on a macroscopic scale, at any given thickness. The present disclosure includes, in varying embodiments, methods of manufacturing microelectronic assemblies and components such as battery electrodes, capacitors, resistors, catalyzers and PCB assemblies by ALD, and the products manufactured by those methods.

A method and a system for fabricating a macroscopic object, comprising, in an environment at least one energy source; at least one hollow cathode separated from an anode by a bias potential; and a support; a flow of gas through the hollow cathode generating a hollow cathode discharge, particles emitted by the hollow cathode being assembled on the support under action of energy from the energy source.

The invention relates to a numerical modeling method of rock mass mechanics considering macroscopic and microscopic defect coupling. The method comprises the following steps of firstly, generation ofa numerical calculation model, wherein an FLAC3D program is adopted for numerical modeling, the planar size, thickness and boundary conditions of the calculation model are set, a three-node triangularunit is adopted for conducting superfine mesh division on the model, during the superfine mesh division, divided mesh units are cubes, and the side length of each cube is not greater than 1 mm; constitutive models and parameters of rock masses or rocky slopes are set, and the numerical calculation model is established; secondly, generation of macroscopic defects; thirdly, generation of microscopic defects. According to the method, the macroscopic defects represent macroscopic joints, cracks and the like, and the microscopic defects represent micro-cracks and the like; by means of the method,the macroscopic and microscopic defects existing in the rock masses are simultaneously considered, and the rock masses obtained through modeling is closer to actual rock masses.

The invention discloses a geological prediction system for constructing a tunnel passing through coal measure strata. The condition of the tunnel passing through the coal measure strata is specifically analyzed in a way of geological record, geophysical prospecting analysis or advance borehole according to specific condition based on macroscopic analysis which is adopted in sequence; the obtained information is classified so as to predict the geological condition of a main job and the geologic hazard of the coal measure strata; and the correlative information and data are used for completing the construction of the geological prediction system for constructing tunnel passing through coal measure strata. The invention provides a system for perfectly and exactly predicting the geology for constructing the tunnel passing through coal measure strata.

The invention relates to a tension-compression and fatigue loading testing machine based on a laser confocal microscope, and in particular provides a loading testing machine applicable to a laser confocal microscope platform. The testing machine comprises a fixed base plate, a tension-compression loading device driven by a motor, a fatigue loading device driven by a piezoelectric ceramic, a force sensor, a holding device, a phase-shifting device and the like. The testing machine can perform tension-compression and fatigue loading tests on a typical sample and a film of a metal or non-metal material under macroscopic scale uniaxial stress, and designs the phase-shifting device for an optical testing method for improving the test accuracy and the automation degree. The testing machine has a compact structure, and a test piece is abutted on the lower bottom surface of the testing machine so that the loading under the laser confocal microscope platform can be achieved; besides, the testing machine uses the microscope to collect loading images, and process the images by an optical method to obtain mechanical parameters of a test piece material. The testing machine has the advantages of high system measurement sensitivity, reliable result and wide application range.

The invention relates to a multi-scale simulation method for solid oxide fuel cells, and is characterized in that the method conducts multi-scale simulation from the mesoscopic scale to the macro equipment scale for complex physical and chemical phenomenon, such as coupled heat calorie transmission, electrochemical reaction in the solid oxide fuel cells, etc. The invention further relates to an integration and co-simulation method of a multi-scale model. Because a modeling method provided by the invention adopts the modeling method by mechanism from the macro-scale based on the phenomenon, the model has the advantages of clear physical meaning, high accuracy and strong adaptability. A simulation method is adopted between the mesoscopic scale and the macro equipment scale based on molecules or molecular clusters, thereby compensating for a deficiency of traditional single scale simulation. Layered method and the method of different scales are combined to study the complex system, so as to be conducive to disclosing the nature of complex systems, such the solid oxide fuel cells and provide a novel means for studying complex the systems.

This invention relates generally to an article that includes a non-wetting surface having a dynamic contact angle of at least about 90°. The surface is patterned with macro-scale features configured to induce controlled asymmetry in a liquid film produced by impingement of a droplet onto the surface, thereby reducing time of contact between the droplet and the surface.

The invention provides an air-ground-space integrated hyperspectral water quality monitoring and analyzing method. The method comprises the following steps of: S1, acquiring of water quality monitoring data: including hyperspectral data acquisition and water body sample data acquisition; S2, water quality monitoring data processing: performing data processing on the acquired multi-source water quality monitoring data; S3, establishment of a water quality parameter inversion model: establishing a water quality parameter inversion model according to the multi-source hyperspectral monitoring data, and modeling the water quality parameters through the inversion model based on artificial intelligence; and S4, water quality parameter inversion analysis. The beneficial effects of the air-ground-space integrated hyperspectral water quality monitoring and analyzing method are that: the method can meet the requirement of large-range water quality monitoring, can reflect the distribution and change conditions of the water quality in space and time, can make up defects that water surface sampling is singly adopted, can find pollution source distribution and migration characteristics and influence ranges of pollutants which are difficult to reveal by some conventional methods, can provide a basis for scientifically monitoring the water environment, and has the remarkable characteristics ofhigh dynamic, low cost and macroscopicity.

The present invention relates generally to optical materials and applications of optical materials and, more particularly, to optical materials incorporating particles such as nanoparticles, methods of forming such materials, and applications of such materials in various devices, for example, for filters, displays, coatings for glare reduction, and the like. The present invention can provide control over fabrication dimensions at very small scale, for example, at the molecular scale rather than at a macroscopic scale. The invention also involves, in some cases, controlling the interaction of many wavelengths of electromagnetic radiation with these materials. The optical materials and devices of the invention may be constructed and arranged for a response to, control of, and/or interaction with essentially any electromagnetic radiation, electric field, and/or magnetic field.

The invention relates to a method and device for assisting laser cladding through an ultrasonic vibration-magnetic stirring composite energy field. The device is characterized by mainly comprising a laser, ultrasonic vibration equipment, an AC excitation device and the like. According to the device disclosed by the invention, an ultrasonic field and an electromagnetic field are applied at the same time in the laser cladding process, so that laser melting regions are subjected to the synergistic effects of the ultrasonic vibration and the magnetic stirring, the organization form in a molten pool is adjusted and controlled, the grain size is controlled, and the macroscopic surface appearance is improved; therefore, excellent cladding layer properties are further obtained. According to the device, the defect that the ultrasonic processing range is small when only the ultrasonic field is applied is overcome, and the shortcoming that the structure refinement effect is unapparent when only the electromagnetic field is applied is overcome. According to the method and device disclosed by the invention, adjusting and controlling of the structure properties of laser cladding layers through the ultrasonic vibration-magnetic stirring composite energy field are realized, cladding layers which are free from cracks and holes, have structure refinement and excellent properties can be obtained. The method and device have the characteristics of being simple in structure, convenient to operate, low in cost, broad in application scope and the like.

A non-toxic anti-fouling coating paste having a rheologic switching behavior based on a flow point, which can be set to the hydrodynamic and biological environmental conditions of a submarine component to be protected and which is between 5 Pa and 2,000 Pa above the wall shearing stress of the unfouled component to form a substrate which prevents colonization by marine fouling organisms.