501 results about "Material Design" patented technology

A method that adds material selectively to a lens substrate and is used to produce a customized eyewear lens with optical power that is discernibly different from the optical power of the lens substrate. The method involves obtaining the lens substrate, calculating and generating an added material design to convert the lens substrate's optical power to a desired optical power for the customized eyewear lens, contacting the lens substrate with a bulk source of flowable radiation-polymerizable material, and irradiating the material with radiation that is controlled for wavelength range, energy and spatial distribution to polymerize the radiation-polymerizable material only in a selected area according to the added material design. The method does not require the use of external shaping structures to form the customized lens on the lens substrate, and the added material is integrally bonded to the substrate.

Laser modules that are operated intermittently are prone to stop operating after only a few thousand cycles or less. The laser modules sometimes experience a significant increase in operating temperature before they stop operating and, in some cases, manifest an opening of the electrical circuit that connects the laser diodes in the stack of laser subassemblies. In extreme cases, the laser module disintegrates into component subassemblies. These problems arise from structural failures in affixing agents like solder that are used to affix component parts to each other. The structural failures are caused by cyclical thermal expansion and contraction of component parts that exceed the elastic limit of the solder. Resistance to global plastic deformation (creep) and to local plastic deformation (fatigue) is improved by selecting materials to reduce mechanical strain and increase resistance to creep and fatigue, by altering the structural design of the laser module to reduce mechanical strain induced into the affixing agents, and by altering operational practices to reduce the range of temperatures imposed on laser module components. One design method improves resistance to creep and fatigue by controlling the thickness of the affixing agents used to affix component parts to each other.

A device capable of attaching a portable handheld camera to the wrist or arm of a human user is disclosed. The device is a multi-component detachable band of fabric or other material designed to encircle a user's wrist or arm, and hold a small handheld camera to the user's arm by way a camera mounting screw that attaches, by way of a rigid or semi-rigid hinged camera mounting bracket affixed to the band, to the camera's tripod socket. The device will often additionally contain a built-in second band of fabric or other material that can be positioned over the majority of the camera's front, and both hold the camera tightly to the user's wrist or arm when photography is not desired, as well as help protect the camera from accidental damage. The device is particularly useful for action sports photography.

An electronic device simulator includes a three-dimensional lumped device model, a three-dimensional visco-elastic process simulation model and a material design model that are interlinked with each other. The three-dimensional lumped device element model comprises a Poisson's equation model, an electron continuity equation model, a hole continuity equation model, a Maxwell's equations model, an eddy current equation model, and an Ohm's law equation model. The simulator accounts for the three dimensional characteristics of the circuit to determine circuit performance.

The invention discloses a testing device for simulation and real-time detection of high-temperature deposition corrosion of thermal barrier coatings, belonging to the field of simulation devices in a special service environment. The testing device comprises a test board which is equipped with a sample fixture and a fixture fixing device, a cooling system, a high-temperature corrosion service environment simulation module, an exhaust system, a complex impedance spectroscopy measuring system, an acoustic emission testing system and a test control and display platform, wherein the complex impedance spectroscopy measuring system and the acoustic emission testing system are integrated together. The device can be used for adjusting the parameters such as variety, concentration, corrosive temperature of corrosive medium. The change of coating impedance and damaged acoustic emission signals when a sample is corroded can be periodically detected by the complex impedance spectroscopy measuring system and the acoustic emission testing system, the high-temperature corrosion of various impurity particles, such as Ca, Mg, Al, Si and Na of thermal barrier coatings of aero-engine turbine blades in actual service temperature environment is actually simulated; in addition, the corrosion failure process is periodically detected; and an important test platform is provided for correctly understanding the high-temperature corrosion mechanism of thermal barrier coatings and optimizing the material design thereof.

The invention relates to composite pavement temperature measurement of an underground road. The purposes of the invention are to make a research on a method for predicating the temperature of a pavement at any time and in any position and preferably instruct pavement structural and material design of the underground road. In order to achieve the purposes, a technical scheme adopted in the invention is as follows: a method for establishing a composite pavement temperature field model of the underground road is characterized by comprising the following steps: actually measuring a composite pavement temperature field of the underground road; carrying out heat transfer theoretical analysis, air convection heat exchange and air radiation heat exchange on the composite pavement temperature field of the underground road; from basic principles of climatology and heat transfer theory, analyzing the temperature field and temperature stress of the underground road pavement by using a two-dimensional elastic layer theory system according to actual situations of a pavement structure; and making the following basic assumptions. The method is mainly applied to the temperature measurement of the composite pavement of the underground road.

A design method for marine propeller made of carbon fiber composite material relates to a design method for a propeller. The invention solves the problem that the current design method for the marine propeller made of carbon fiber composite material is imperfect. The geometrical appearance of the blade by the design method for marine propeller made of carbon fiber composite material is calculated by fully using the flexibility and designable performance of the composite material on the basis of the value data of the original MAU metal propeller blade and combining the fluid-structure coupling method with the implementation of the pre-deformation tactics; and the outside of the propeller hub is wrapped by the carbon fiber composite material. The marine propeller made of carbon fiber composite material designed by the method has the geometrical appearance and the internal structure more suitable for the propeller made of carbon fiber composite material, thereby being capable of effectively improving the fluid elasticity of the propeller and improving the propulsive efficiency.

A device for damping vibration of a retention ring for axially retaining turbomachine fan blades, the blades being designed to be mounted via their roots on a rotary disk having an annular flange extending axially and provided with a plurality of radial crenellations for coming into contact with a plurality of complementary radial crenellations of a retention ring designed to be mounted around the disk flange, the device comprising an abutment element of elastomer material designed to be received axially between two adjacent crenellations of the flange and two adjacent complementary crenellations of the retention ring, and radially between the flange of the rotary disk and the retention ring, said abutment element presenting contact surfaces for coming into contact with the adjacent crenellations, with the retention ring, and with the flange of the rotary disk.

An extended stroke poppet valve particularly suited for handling caustic fluids and having features enabling an extended service life for the valve. The valve includes a two part primary diaphragm assembly with a wetted diaphragm made from highly fatigue resistant fluoropolymer material, and a diaphragm backer made from high strength fluoropolymer material designed to withstand the high stress loads imposed by an extended valve stroke. The combination of these two layers in a single primary diaphragm assembly yields a highly durable, caustic chemical resistant, diaphragm capable of use in a long stroke poppet valve and having a relatively long service life.

The invention belongs to the field of porous metal materials and particularly relates to a preparation method of a gradient pore porous high-niobium titanium-aluminum alloy. The method comprises the following steps of: mixing pure titanium powder, pure aluminum powder and pure niobium powder and sintering the mixture by a Kerkendill effect reaction pore-forming method and a pore-forming agent physical pore-forming method; adding a plurality of ingredients; compacting the ingredients which contain different pore-forming agents and have different content into single blanks respectively; rolling a plurality of single blanks with different pore-forming agent content into the total blank; and performing a vacuum drying degreasing pore-foaming and high-temperature sintering reaction pore-forming process so as to finally obtain a porous high-niobium titanium-aluminum alloy material with a gradient hole structural characteristic and adjustable porosity. The material has gradient porosity change, optionally-adjustable pore structural characteristic, adjustable stress cross section, light weight, high specific stiffness and high heat insulation performance; simultaneously, the material has high material design flexibility and can be widely applied to the industrial fields of high temperature heat insulation, filtering separation, catalysis and the like.

The present invention relates to a phantom device that simplifies usage and testing of a low intensity light imaging system. The phantom device includes a body and a light source internal to the body. The body comprises an optically selective material designed to at least partially resemble the optical behavior of mammalian tissue. Imaging the light source or phantom device may incorporate known properties of the optically selective material. Testing methods described herein assess the performance of a low-level light imaging system (such as the software) by processing light output by the phantom device and comparing the output against known results. The assessment builds a digital representation of the light source or test device and compares one or more components of the digital representation against one or more known properties for the light source or the test device.

The invention relates to poly-amide bonded hydrophilic interaction chromatography (HILIC) stationary phases and novel HILIC methods for use in the characterization of large biological molecules modified with polar groups, known to those skilled in the art as glycans. The invention particularly provides novel, poly-amide bonded materials designed for efficient separation of large biomolecules, e.g. materials having a large percentage of larger pores (i.e. wide pores). Furthermore, the invention advantageously provides novel HILIC methods that can be used in combination with the stationary phase materials described herein to effectively separate protein and peptide glycoforms by eliminating previously unsolved problems, such as on-column aggregation of protein samples, low sensitivity of chromatographic detection of the glycan moieties, and low resolution of peaks due to restricted pore diffusion and long intra/inter-particle diffusion distances.

The method according the the invention comprises the following steps: a) taking a sagittal preoperative x-ray of the vertebral column of the patient to be treated, extending from the cervical vertebrae to the femoral heads; b) on that x-ray, identifying the pelvic parameters, the lumbar lordosis, the position of the apical lumbar vertebra, distances called SVA and SFD and a cloud of points; c) deducing, among predetermined morphotypes, the morphotype to which the treated vertebral column corresponds and deducing therefrom the desired postoperative apex point; d) positioning the different points of the cloud of points in a reference centered at the plate of S1; e) simulating the correction to be applied to the lumbar segment to be treated, by defining co-radial arcs situated below and above the desired postoperative apex point; defining two arcs concentric to the two curvatures obtained, which are tangent to each other at the apex point; f) translating these arcs away from the mean line of the vertebral column and defining a two- or three-dimensional model of the rod to be implanted, curved along the arcs.

The invention discloses a degradable lamellar Zn-Mg composite material and a preparation method thereof. The outer layer of a lamellar medical metal composite material is made of pure zinc or zinc alloy, and the core part of the lamellar medical metal composite material is made of pure magnesium or magnesium alloy; the ratio of zinc or zinc alloy and magnesium or magnesium alloy is calculated according to volume percentage, zinc or zinc alloy accounts for 20%-50% of the total volume of the material, and the balance is magnesium or magnesium alloy. The lamellar composite material is prepared bycombining layered casting with nested extruding. The degradable lamellar Zn-Mg composite material has the advantages that: the selected magnesium alloy and the selected zinc alloy have good biocompatibility and degradability; mechanical properties and a degradation rate of the integral composite material are controlled by controlling a relative thickness of a Zn layer to a Mg layer, so that the composite material adapts to a service environment, and therefore, a condition that single metal is too quick or too slow in degradation is solved. The material design and the preparation method are simple and convenient, and the cost is low, so that industrial production is facilitated.

The invention discloses a polycell collaborative coupling acoustic meta-material design method. The method comprises a structure design method with insufficient localization rigidity and a structure design method with sufficient localization rigidity, wherein the structure design method with insufficient localization rigidity adopts a separating framework with localization rigidity lower than thinplate rigidity to separate local area resonance cells, so that strong coupling resonance behaviors of a single cell is generated, and a polycell combined structure with lumped coupling resonance effect is formed; the structure design method with sufficient localization rigidity adopts the separating framework with localization rigidity higher than thin plate rigidity, so that resonance of a single cell is not mutually affected within a design frequency band; and cells with gradient distribution of multiple thin plate widths, thin plate thicknesses or additionally mass block weight structure parameters define a polycell combined structure. The polycell collaborative structure can be applied to various transfer tools and various building decorations, and provides a brand-new denoising scheme for creating a low-noise environment.

The invention provides a method for preparing a supported bimetal organic framework material MIL-100(Fe-Cu) and denitration application, and belongs to the field of novel material design and preparation. By means of the post-synthesis modification method, the Cu element is successfully introduced into an original MOFs framework, and a novel MOFs material with bimetal active sites is constructed. The method is characterized in that the hydrothermal technology is used, a metal precursor solution is prepared by means of stabilizer to be effectively combined with Fe-MOFs, and the material MIL-100(Fe-Cu) is prepared and used for denitration reaction. Compared with an original monometal catalyst, a catalyst prepared through the method has unsaturated active sites of Fe3+ and Cu+, denitration activity is improved by about 15%, and the material is good in dispersity, high in yield and good in catalytic activity.