87results about How to "Changeable structure" patented technology

The invention relates to an active left-handed transmission line formed by a lumped element and a diode and belongs to the technical field of microwaves. The transmission line comprises an SMA (Shape Memory Alloy) joint and micro-strip lines and is formed in a mode that N stages of units are cascaded. Each active left-handed transmission line unit consists of a series chip capacitor, a radio frequency choke inductor, a bias voltage, a negative differential resistance diode, a parallel chip inductor, a metal through hole, a dielectric substrate and a metal earth plate. The active left-handed transmission line units are connected through the micro-strip lines. An anode of each bias voltage is connected with a metal wire on the top layer of the joint of the corresponding micro-strip line and a cathode of the bias voltage is connected with the corresponding metal earth plate on the bottom layer of the micro-strip line. Each bias voltage is connected with a radio frequency signal transmission part of the active left-handed transmission line through the corresponding radio frequency choke inductor. The active left-handed transmission line not only has the characteristics that the active left-handed transmission line has the advantages of wide band, small size and simple structure, is easy to match and is easy for circuit integration, but also has the characteristic of net gain, i.e. transmission amplification, and can be applied to design of an antenna, a filter, a power divider, a phase shifter, a directional coupler, an amplifier, a sub-wavelength resonator, a perfect lens and the like.

The invention provides a transmission type polarized transition super surface, which belongs to the technical field of microwave frequency range electromagnetic wave regulation and control. The polarized super surface unit comprises three layers of metal pasters, with a medium substrate being disposed between two layers of metal pasters, and the top layer of metal paster and bottom layer of metalpaster having the same structure. Through reasonably designing the structure size of the top layer, the middle layer and the bottom layer of metal pasters, the incident linear polarization electromagnetic wave passes through the super surface structure and then continues to transmit. The transmitting electromagnetic wave has the equal electric field amplitude in the horizontal direction and the vertical direction, and the phase difference is 90 degree between the horizontal direction and the vertical direction, and thereby the transmitting electromagnetic wave has the feature of circular polarization. The invention is advantageous in that the transmission type circular polarization super surface has wide broadband, ultrathin surface, simple structure, and low cost; the polarized state of the electromagnetic wave can be flexibly controlled; wide application prospect is provided in fields like antennas, imaging, communication systems, electromagnetic confrontation and military stealth.

The invention provides a supramolecular self-assembly biological chip. The supramolecular self-assembly biological chip comprises a substrate (1), first chain molecules (3) which are fixed on the surface of the substrate, and second chain molecules (4) which are fixed on the surface of the substrate, wherein the first chain molecules and the second chain molecules are fixed on the substrate at intervals; part of one end, which is far away from the substrate, of each first chain molecule is included by cyclodextrin (2); the cyclodextrin comprises a functional group which can be directly or indirectly bound with protein molecules; and each second chain molecule is not longer than each first chain molecule. Poly(pseudo)rotaxane which is formed by coating the cyclodextrin and the first chain molecules and the second chain molecules which are arranged uniformly at the intervals are arranged on a self-assembly layer on the surface of the biological chip, a three-dimensional space has a dense, controllable and changeable structure, and compared with a two-dimensional surface, the three-dimensional space can fix more detection molecules such as the protein molecules. Moreover, the invention also provides a preparation method and application of the biological chip.

The invention belongs to underground coal mine mechanical devices and particularly relates to a novel belt conveyor which solves the problems of high energy consumption and poor safety in the existing belt conveyor. The conveyor comprises a body, an unloading portion, a head portion, a belt tensioning portion, a belt winding and unwinding device, a driving device, a transition off-tracking-proof front-arranged support roll group, a rubber belt, a self-movable tail, a belt protection and control system and a video monitoring system. The novel belt conveyor is applied to a working face of an underground coal mine to convey raw coal in a crossheading mode, can be used for long-distance large-quantity transportation, can adapt to various work conditions and roadway conditions, is high in operation stability and energy utilization rate and simple to operate, greatly reduces labor intensity, saves cost and is an ideal transportation device. The performance of the conveyor can meet the requirements of underground coal mine coal transportation for safety, high efficiency and energy saving, and functions of soft starting, soft braking, automatic tensioning, immediate belt tension adjustment, simultaneous driving of the head and the tail, returning of power generation work conditions and electric energy to a grid, belt off tracking adjustment to achieve stable transportation and the like can be achieved.

The invention discloses a low-emission combustion chamber head part with an oil way automatic regulating valve structure. Design of a main oil pipeline simultaneously and automatically supplying oil to three oil ways is adopted in the head part; the head part consists of a pre-combustion level and a main combustion level, and the pre-combustion stage is a double oil way spray nozzle. Under a working condition of low power, oil supply pressure is small, and the main oil pipeline separately supplies oil to a pre-combustion level auxiliary oil way so as to ensure atomization quality; under a working condition of middle power, oil supply pressure is increased, a spring valve of a pre-combustion level main oil way is opened and oil supply is started; under a working condition of large power, oil pressure is further increased, a spring valve of a main combustion level oil way is opened and oil supply is started; the design of automatic three oil way adjustment in the heat part can help ensure a simple structure of a combustion chamber, and a wide fuel oil flow adjustment scope can be realized; high flame stability, low emission and other properties of the combustion chamber can be ensured under different working conditions.

The invention discloses a high efficient microwave energy receiving board formed by secondary wavelength resonance structural units. Each of the unit is in a square structure. A layer of square sheet copper is plated in the middle of a Rogers circuit board of an intermediate layer; the sheet copper is formed by two right-angle isosceles triangles. Two sides of a slit between the two right-angle isosceles triangles are respectively connected with two input interfaces of a high frequency rectification chip and are used as input terminals of a high frequency rectification circuit; and four sides of the square sheet copper are respectively connected with their own long-strip sheet coppers respectively through strip-shaped sheet coppers. A layer of sheet base plate is fully plated under the circuit board of the intermediate layer; two crossed annular openings are opened in the middle of the sheet base plate; two small sheet coppers in the middle of the two annular openings pass through through holes of the circuit board and are respectively connected with two output terminals of the high frequency rectification chip; and a high frequency filtering capacitor is in parallel connection between the two sheet coppers. According to the invention, super high efficient receiving and conversion of microwave energy can be realized; the costs are low and the structure is simple; and efficiencies of receiving and conversion of energy are high; and therefore, the high efficient microwave energy receiving board can be widely applied to microwave energy transmission of various frequency ranges as well as research and development and application fields of receiving equipment.

The invention discloses a microwave energy receiving flat panel capable of absorbing a linearly polarized incident wave in a random direction. The microwave energy receiving flat panel is formed by continuation and arrangement of at least one sub-wavelength square array unit, wherein a square dual linearly polarized resonance structure is etched on a first thin metal layer; the first thin metal layer is formed by forming bar grooves at opposite corners and inside a patch; two metal via holes are formed in the patch; the two metal via holes pass through various middle layers and are connected with two power combining networks respectively; the two power combining networks are located in two layers of strip line structures respectively and are formed by cascading two-in-one power combining circuits; output ends of the two power combining networks are connected with two input ends of a directional coupler; two output ends of the directional coupler are connected with two rectifier circuits respectively; and the output ends of the rectifier circuits are connected in parallel such that a direct-current output is obtained. The microwave energy receiving flat panel achieves efficient receiving of linearly polarized incident electromagnetic wave energy in the random direction in the space, and can be widely applied to the fields of receiving and converting of microwave energy with various bands and power levels.

The invention provides a three-dimensional protein in situ expression chip with the effects of high fixed quantity, high protein activity and ordered fixation. The chip comprises a base (1), a surface modification layer and protein (5) fixed on the surface modification layer, wherein the surface finish layer comprises second chain molecules (4) and polyrotaxane; the polyrotaxane comprises first chain molecules (3) and cyclodextrin (2); and the second chain molecules and the polyrotaxane are fixed on the base through fixed groups at one ends of the second and the first chain molecules. The invention further provides a method and a device for building the chip as well as the application of the chip, the method and the device.

The preparation methods for conjugated polymer containing iridium complexes and the related electrical memory component of conjugated polymer comprise the following steps: ITO conductive glass is washed by water, acetone and 2-propanol respectively in ultrasonic wave; the conjugated polymer containing iridium complexes in the patent claim 1 is used as memory material to prepare polymer solution with concentration of 0.1-500mg/mL; the polymer solution is then spin-coated on the ITO conductive glass; the solvent is removed under vacuum to obtain the polymer membrane. Gold, aluminum, copper and other metal are used as the upper electrode after vapor plating, while the ITO conductive glass is used as the lower electrode; the polymer material is used as memory medium to prepare and obtain the monolayer polymer memory component. Such polymer contains donating electron units (fluorine unit and others) and withdrawing electron units (iridium complexes) at the same time. The materials presented in the invention can form membrane through spin-coating, without the problem of uneven disperse of heavy metal complexes; based on needs, other functional groups can be introduced into the polymer molecular chain to be expected to prepare highly-efficient and stable memory components.

The invention discloses a terahertz wave transmission power splitting and combining structure. A main branch transition structure, a main branch transmission structure, a sub-branch transmission structure and a sub-branch transition structure are sequentially arranged on a metal base. Terahertz waves are input or output from one end, slowly transformed into surface waves through the main branch transition structure and transmitted through a main branch, surface waves of the sub-branch transmission structure are divided into two paths, finally transformed into original terahertz waves through the sub-branch transmission structure and output or input from two ends of the sub-branch transmission structure respectively. The terahertz wave transmission power splitting and combining structure is simple in structural design, and only a triangular prism protrusion structure is required to be processed on the metal surface. The designed transition structure can gradually guide incident electromagnetic waves to form surface waves, the electromagnetic wave reflection is reduced, the transmission efficiency is improved, and the power splitting and combining efficiency of the structure can reach to 90% theoretically. The power splitting and combining structure has variability and cam meet terahertz waves of different frequency bands by modifying the specific size of the protrusion structure.

The invention discloses unloading type thin-walled box dead walls borne by oblique vertical sectional steel tube piles. The unloading type thin-walled box dead walls comprise a foundation pit, whereinbox wall modules are arranged at relative positions of the high-place floor and the lower-place floor, and each box wall module comprises a rear outer wall, a front outer wall, a left outer wall anda right outer wall; a plurality of lateral inner separation walls are arranged at opposite positions in the box wall modules; longitudinal inner separation walls are arranged at opposite positions inthe box wall modules; middle stress plates are arranged at opposite positions in the box wall modules; leftwards-projected haunched beams are arranged on the left side of the middle stress plates; rightwards-projected unloading plates are arranged on the right side of the middle stress plates; rafts in horizontal arrangement are arranged at the bottoms of the box wall modules, and a plurality of vertical steel pipe piles in vertical arrangement are arranged at the bottoms of the rafts; and a plurality of oblique steel pipe piles are arranged at opposite positions of the left sides of the rafts. The unloading type thin-walled box dead walls have the beneficial effects that the unloading type thin-walled box dead walls can be suitable for foundation pit edges formed in different complex terrains, and are good in stability and convenient to construct.

The invention relates to a self-energized flexible energy storage device for wearable electronic equipment, in particular to a self-energized flexible energy storage device and a self-energized sensing device, and solves the problems in the background art. The energy storage device comprises an energy collection device, a flexible electronic circuit, a flexible supercapacitor and an insulating silica gel packaging sleeve, and the energy collection device, the flexible electronic circuit and the flexible supercapacitor are combined and packaged through the insulating silica gel packaging sleeve. The invention provides the self-energized flexible energy storage device and the self-energized sensing device which have the advantages of small size, variable structure, high safety, good comfort level and the like, the flexible supercapacitor can provide higher power density, higher charging speed and longer service cycle, the parameters are crucial to further optimization and development of the wearable electronic equipment, and better guarantee is provided for upgrading of the wearable electronic equipment.

The invention relates to a power transmission cable, which can be deployed and laid, adaptive to a relatively small space and mutually independent between conducting wires. The cable is varied in structure, adaptive to different laying spaces and relatively wide in application range; the cable is characterized in that multiple outer protective sleeves are arranged on a fixed substrate at equal distance; furthermore, the two outer protective sleeves at the outermost side are separately positioned at two ends of the fixed substrate; a nylon buckle is arranged on the outer side wall of the two outer protective sleeves at the outermost side; furthermore, the two are mutually matched; the section of the outer protective sleeve is circular; a clearance exists between the two adjacent outer protective sleeves; the fixed substrate is a rubber plate; multiple bearing steel wires are embedded on the fixed substrate, and separately positioned between the two adjacent outer protective sleeves; three conducting wires are separately arranged in the outer protective sleeve, and distributed in a triangle; a filler is built in the clearance in the outer protective sleeve; the filler is an insulation material; multiple conductor cores are embedded in the conducting wire; and furthermore, adjacent two conductor cores are spaced at a certain distance.

The invention relates to the field of hydrogen production, and particularly relates to a remote explosion-proof hydrogen production device for recycling coalified carbon dioxide and a technology thereof. The technology comprises the following steps: 1) turning on a power switch; 2) turning on a solar steam generator valve, feeding the water vapor to a steam coal slurry spray machine and carrying out coal slurry treatment on the coal fed by an intelligent coal feeder; 3) turning on a spare CO2 tank valve, so that the CO2 reacts with coal slurry after passing through a plasma torch generator; 4) feeding a reaction gas to a vapor generating set and the formed vapor to the vapor tank; 5) feeding the cooled gas to a purifier to purify; and 6) feeding the purified gas to a separator to separate. The remote explosion-proof hydrogen production device has the beneficial effects that 1, the remote explosion-proof hydrogen production device is simple and variable in structure, 2, zero pollution discharge is achieved, and CO2 is recycled, 3, the additional value is increased, and an integrated chain of hydrogen production, oxygen production and byproducts is built; 4, energy consumption is reduced by using solar energy in comparison with the traditional technology; and 5, the safety of a production line is effectively ensured.

The invention relates to an electronic cardiac sound and lung sound remote auscultation system. The system comprises an audio processing mechanism, one end of the audio processing mechanism is electrically connected with a sound pickup microphone, the other end of the audio processing mechanism is electrically connected with an earphone and a remote auscultation platform, and the remote auscultation platform is used for conducting remote diagnosis on the cardiac sound and lung sound; the sound pickup microphone is installed on an auscultating mechanism, the auscultating mechanism is of a telescopic sleeve structure and is used for auscultating the cardiac sound and lung sound, and the telescopic sleeve structure is used for changing the size of an auscultating opening of the auscultating mechanism. By means of the electronic cardiac sound and lung sound remote auscultation system, a doctor can select a proper auscultating tube according to the age group of a patient who needs auscultation, the structure is changeable, the application range is wide, and an auscultator does not need to be frequently replaced any more; when a first tube and a second tube are utilized for auscultation,a funnel structure can be formed between the tubes, thus sound is gathered, and thus the sound collecting effect is improved.

The invention discloses an LED projection lamp convenient to fix. The LED projection lamp convenient to fix comprises an arc-shaped sealing cover, a projection lamp body frame, a rotary platform and abottom end support platform, wherein the projection lamp body frame is connected below the arc-shaped sealing cover, and mutually connected with the rotary platform through a rotary connection element; a fixed support frame is arranged in the rotary platform; the projection lamp body frame is mutually connected with a cylindrical bearing barrel body through a rotary central shaft, and a circularbearing bottom plate is arranged at the lower end of the rotary central shaft; and the bottom end support platform is mutually connected with the circular bearing bottom plate through a compression spring. According to the LED projection lamp convenient to fix, a base is provided with universal wheels, so that movement for the LED projection lamp is facilitated; a clamping element is capable of fixing promotional materials, and the promotional materials are more convenient to remove after being used; and the use amount of raw materials is reduced due to a semicircular port in the arc-shaped sealing cover, so that the weight of the arc-shaped sealing cover is reduced, and the raw materials are saved.

The invention discloses a reconfigurable artificial surface antenna with three freedom degrees. The antenna mainly consists of resonant units of the same structure, and each resonant unit comprises asquare dielectric slab, a copper piece structure and a variable capacitance diode, wherein the copper piece structure and the variable capacitance diode are disposed on the dielectric slab. The copperpiece structure comprises two H-shaped piece structures and an interdigital structure located between the two H-shaped piece structures. The resonant units are periodically extended in a second direction, and the H-shaped piece structures on the adjacent resonant units are correspondingly connected to form a resonant unit group. A plurality of resonant unit groups are periodically extended in a first direction, thereby forming a reconfigurable artificial surface. The type of the variable capacitance diode is SMV1234, and the variable capacitance diode works in a reverse bias state. The antenna achieves the simultaneous reconfiguration of wave beam width, instant working band and scanning angle through applying different voltages to two ends of the resonant units, and is large in variableamplitude of reconfiguration.

The invention discloses an outdoor tent and a manufacturing technology thereof. The outdoor tent comprises a support and a fabric shade. The support comprises a ceiling formed by connecting bent rodsand a body, wherein first straight rods are connected end to end to form a rectangular bottom face, each rotating corner of the rectangular bottom face is perpendicularly connected with isometric second straight rods, the second straight rods are connected with the bent rods, and the body and the ceiling form an integrated structure; the fabric shade comprises a top fabric, a side fabric, a bottomfabric, a locking belt and a door cord fabric; a zipper is sewn at an opening of the door cord fabric, and the fabric shade is closed after the zipper is closed. The manufacturing technology comprises the steps of 1 support preparation, 2 pullover preparation, 3 bottom fabric manufacturing, 4 top fabric and side fabric manufacturing, 5 door cord fabric manufacturing, 6 fabric shade manufacturingand 7 tent assembling. The outdoor tent has the advantages of being good in waterproof performance, portable, light, exquisite and waterproof and dampproof due to the dual-layer structure.

The invention relates to the technical field of toys, and discloses a splicing toy. The splicing toy comprises splicing sheets, shafts, wheels, rods and chains, wherein first connectors are arranged on side edges of the splicing sheets, second connectors and/or shaft holes are arranged on panels of the splicing sheets; any two splicing sheets are mutually clamped and connected through the first connectors or the second connectors; a plurality of shaft holes are formed inside the wheels or in the rods; and the shafts are matched with the shaft holes in the splicing sheets, the wheels and the rods. The splicing toy comprises a plurality of splicing components with ingenious structures, reasonable size design and various splicing manners, so that the splicing toy can form a model varied in structure and function. Through the ingenious splicing structures, novel components can be added continuously, so that the toy provides various splicing manners and expanding space, the toy is more interesting and has an intelligence promoting effect, and the service life of the toy can be continuously prolonged.