288 results about "Artificial surface" patented technology

Natural joint interfaces wear out and/or are damaged causing pain and disability. They can be currently replaced by artificial surfaces made of materials or in the near future by magnetic fields. They would benefit from a PVES (paramagnetic visco-viscoelastic supplement) that can replace or augment natural joint interfaces or augment total joint replacements. Joint replacement components can be modular and would benefit from a PVES to decrease wear and damp impact between modular parts of a single component. The PVES is a dynamic interface allowing components to be less rigid. Energy transmission is reduced. PVES can act as an interface between natural damaged joint surfaces obviating the need for classic total joint replacement or between the surfaces of artificial joint components to improve or supplement their function. These PVES can be controlled by magnetic fields with respect to their location, physical properties, loads, etc. PVES are typically made of paramagnetic ions and a substrate molecule. One such PVES can be made of gadolinium ions and hyaluronic acid to form gadolinium hyaluronate.

The invention discloses an ultra-wideband artificial surface Plasmon low-pass filter which is mainly formed by a dielectric substrate layer and metallic foil layers printed on the both side surfaces of the dielectric substrate layer. Waveguide structures are engraved on the metallic foil layers. Each waveguide structure is formed by a middle surface Plasmon waveguide portion, symmetric microstrip line portions at both ends, and two transition portions. The ultra-wideband artificial surface Plasmon low-pass filter may achieve effective transmission of artificial surface Plasmon waveguide, and has symmetric structure, easy processing, compact size, a ultra-wide band and high filtering performance, and is especially suitable for being used in cooperation with a conventional microwave or terahertz transmission line.

The present invention provides compositions and methods for the control and management of wildlife populations (including domesticated animals) and pests such as rodents, birds including geese, deer and other herbivores such as rabbits, ground hogs, raccoons, moose and elk, tunneling animals such as moles, voles and gophers and insects, carnivores and other organisms such as predators. Specifically provided are FIFRA exemption-based formulations which may be applied to natural or artificial surfaces.

The present invention provides compositions and methods for the control and management of wildlife populations (including domesticated animals) and pests such as birds including geese, deer and other herbivore such as rabbits, ground hogs, raccoons, moose and elk, tunneling animals such as moles, voles and gophers and insects, carnivores and other organisms. Specifically provided are geraniol oil-based formulations which may be applied to natural or artificial surfaces. Also provided are pest control systems incorporating the use of repellent or attractant formulations.

The invention discloses a transmission line, a leaky-wave antenna multiplexing device and a beam scanning method thereof. The device comprises a dielectric substrate, a metal strip and a metal floorboard positioned on the front and back surfaces of the dielectric substrate, and periodically alternatively arranged capacitors and variable capacitance diodes for connecting the metal floorboard and the metal strip via the through holes. The metal strip comprises gradient microstrip line structures at two ends and an artificial surface plasmon structure positioned therebetween. When the capacitance value of the variable capacitance diode is identical with that of the fixed capacitor, the surface impedance of the device is identical, and thus the function of the transmission line is achieved; when the capacitance value of the variable capacitance diode is not identical with that of the fixed capacitor, the surface impedance of the device is periodically modulated, and thus the radiation function of the leaky-wave antenna is achieved. Voltage is used as a regulation means, and fixed frequency beam scanning can be achieved along with the change of the voltage; the device is simple to manufacture, convenient to operate and prone to integrate; only a photoetching step is needed, so that cost is saved, and machining errors caused by a multi-layer structure are avoided.

The present invention provides compositions and methods for the control and management of wildlife populations (including domesticated animals) and pests such as rodents, birds including geese, deer and other herbivores such as rabbits, ground hogs, raccoons, moose and elk, tunneling animals such as moles, voles and gophers and insects, carnivores and other organisms such as predators. Specifically provided are FIFRA exemption-based formulations which may be applied to natural or artificial surfaces.

The invention discloses a method for obtaining three-dimensional graphics data of cultural relics, comprising the following steps: obtaining three-dimensional coordinate value information, reflection intensity information, and scene image data information of each scanning point of cultural relics through ground laser radar; Eliminate error information and redundant information, obtain homogenized data through sampling and interpolation; construct a triangulation model based on the above homogenization data, and map reflection intensity information and scene image data information to the triangulation model to generate Color model of 3D graphic data information. In the method for obtaining three-dimensional graphic data of cultural relics described in the present invention, laser radar technology can be used to directly obtain three-dimensional data on the surface of cultural relics without contact, and real three-dimensional data of cultural relics can be obtained without damaging cultural relics. cracks, deformation of cultural relics and other information, and has an absolute advantage in obtaining large amounts of data.

The present invention relates to a sewage treatment combined wet land system and its sewage treatment process. Said sewage treatment combined wet land system includes biological regulation pool, aerobic degradation and microbial culture pool, artificial underflow wet land unit and artificial surface flow wet land unit, and its sewage treatment process includes the measures of natural precipitation, biological absorption, degradation and conversion, aeration reaction and others so as to make the sewage obtain purification treatment.

The invention provides an ultra wide band plasma filter provided with an artificial surface. The ultra wide band plasma filter comprises a coaxial waveguide of which the two ends are symmetrical, a transitional waveguide from the coaxial waveguide to a cylindrical plasma waveguide, and the intermediate cylindrical plasma waveguide, wherein the transitional waveguide comprises an inner conductor transition and an outer conductor transition; the inner conductor transition is realized through a periodic ring-shaped groove array of which the radius and the depth change simultaneously; the outer conductor transition is realized through a horn antenna of which the opening changes gradually as a curve changes; the cylindrical plasma waveguide consists of the periodic ring-shaped groove array of which the radius and the depth are constant. The ultra wide band plasma filter provided by the invention has an open symmetrical structure, the compact size, the wide band, a high performance and a simple structure, is especially suitable for being used with a traditional microwave or a terahertz transmission line in a matching manner, can be used as the novel wide band plasma filter, and provides a fire-new thought and scheme for the design and the application of the filter.

The invention discloses an artificial surface plasmon based same-frequency double-frequency dual-circularly-polarized leaky-wave antenna. The artificial surface plasmon based same-frequency double-frequency dual-circularly-polarized leaky-wave antenna comprises a medium substrate, a metal strip which covers the upper surface of the medium substrate and a metal floor plate which covers the lower surface of the medium substrate; the metal strip comprises co-surface waveguide matching structures at two ends and an artificial surface Plasmon structure in the middle; the artificial surface Plasmon structure comprises two sidebands respectively at the upside and the downside; each sideband comprises multiple artificial surface plasmon structures distributed according to a modulation period; groove unit structures between the upper and lower sidebands form an angle of 90 degrees; and the upper and lower sidebands are staggered symmetrically. The invention is a double-port leaky-wave antenna; different radiation modes are generated when feeding is carried out at different ports; dual-mode circular polarization can be realized within 8.6-9.0 GHz; mono-mode circular polarization can be realized with in 9.0 GHZ-10.5 GHz; and the artificial surface plasmon based same-frequency double-frequency dual-circularly-polarized leaky-wave antenna is simple to manufacture and convenient to operate, and has very high application foreground.

Compositions and methods, including novel homogeneous microparticulate suspensions, are described for treating natural and artificial surfaces that contain bacterial biofilm, including unexpected synergy or enhancing effects between bismuth-thiol (BT) compounds and certain antibiotics, to provide formulations including antiseptic formulations. Previously unpredicted antibacterial properties and anti-biofilm properties of disclosed BT compounds and BT compound-plus-antibiotic combinations are also described, including preferential efficacies of certain such compositions for treating certain gram-positive bacterial infections, and distinct preferential efficacies of certain such compositions for treating certain gram-negative bacterial infections.

The invention discloses an artificial surface plasmon coupler based on a transmission type phase gradient super surface and relates to the technical field of artificial surface plasmon. The coupler includes a phase gradient super surface and a square paster array. The phase gradient super surface is disposed exactly above the square paster array and a clearance is arranged between the phase gradient super surface and the square paster array. Through adjusting the length of square pasters, the dispersion relation of intrinsic artificial surface plasmon can be adjusted, so that artificial surface plasmon intrinsic wave vector on the square paster array is approximately equal to the wave vector of excited state surface vector in a specific bandwidth. In this way, surface wave generated on the phase gradient super surface is resonant coupled to the square paster array and finally intrinsic artificial surface plasmon of broadband is acquired through coupling and the intrinsic artificial surface plasmon propagates in a long range with low loss on the square paster array. The conversion efficiency of that propagation waves convert to artificial surface plasmon is improved. The invention provides technical means for designing and manufacturing high performance artificial plasmon equipment.

The invention discloses an artificial surface plasmon broadband bandstop filter based on a composite U-shaped groove structure, and belongs to a bandstop filter. The filter comprises a dielectric substrate and metal printed on the dielectric substrate. The metal comprises a waveguide gradual change structure, grounding conductor planes, a periodic metal grating waveguide, and a U-shaped groove structure. The periodic metal grating waveguide is provided with the U-shaped groove structure, which indicates that no metal is printed. The periodic metal grating waveguide is an artificial surface plasmon transmitter, and two ends of the periodic metal grating waveguide are respectively connected with the waveguide gradual change structure. The grounding conductor planes are located at upper and lower sides of the waveguide gradual change structure. The artificial surface plasmon transmitter is a metal film, and the metal film is shaped in a manner that two sides, perpendicular to the length direction, of a rectangle are symmetrically provided with grooves. The grooves at the same side are arranged at equal intervals, and the widths and depths of the grooves are equal. The filter is simple in structure, is large in bandstop internal inhibition, is wide in band stop, and is easy to integrate with other microwave circuits.

The invention discloses a band-stop filter based on artificial surface plasmons. The structure works in a microwave frequency range, and a metal structure is only adhered to the upper layer of a medium. The band-stop filter is fed by conventional coplanar waveguides, and transition structures between the coplanar waveguides and artificial surface plasmon waveguides are utilized to realize impedance matching and wave number matching between the two kinds of waveguides. According to the invention, two unit structures of double-edge wrinkling strip line artificial surface plasmon waveguides are used to form a new unit structure, a certain distance interval of periodic arrangement is formed between every two new unit structures, and a new artificial surface plasmon transmission line is formed. The transmission line is characterized in that, capacitance structures are introduced into the conventional double-edge wrinkling strip line transmission line, and a stop band can be introduced into the frequency band of the artificial surface plasmons, so that the function of the band-stop filter is realized.