景观灯(FB2214)

METHOD FOR DETECTING MICRORNAS BASED ON ROLLING CIRCLE AMPLIFICATION AND DNA ORIGAMI

Disclosed is a method for detecting microRNAs based on rolling circle amplification and DNA origami, in particular comprising: amplifying a target signal by means of rolling circle amplification, while introducing an orderly arranged detection unit by means of DNA origami, so as to detect nucleic acid molecules. The method has the advantages that (1) by carrying out signal amplification by means of rolling circle amplification, a high-temperature denaturation process is not needed, and the reaction is quick and the detection sensitivity is improved; and (2) the amplification product is folded by means of DNA origami, so that introduced detection sequences can be arranged in an orderly manner, and signal interference caused by directly surrounding the detection sequences is avoided.

Room-temperature-curing ultralow-temperature-resistant adhesive for interlayer common bottom

The invention provides an interlayer common-bottom room-temperature curing ultralow-temperature-resistant adhesive which is composed of a component A and a component B. The component A is composed of bisphenol A epoxy resin, core-shell particle modified epoxy resin, polyurethane modified epoxy resin, a reactive diluent, a silane coupling agent and filler. And the component B consists of aliphatic amine, alicyclic amine and polyamide. The adhesive has excellent bonding performance, after the adhesive is fully cured at room temperature for 24 hours, the aluminum-aluminum tensile shear strength at-111 DEG C is larger than or equal to 20 MPa, and the aluminum-aluminum tensile shear strength at normal temperature is larger than or equal to 25 MPa; after being cured, the adhesive has better adhesive force on the surfaces of various base materials, and the 10-degree peel strength of the adhesive is higher than 40N/mm when the adhesive is used for sandwich structure metal-metal under general conditions ...

FLEXIBLE MANIPULATOR HAVING CHINESE CHARACTER "弓"-SHAPED CONTINUOUS CURVED INNER CAVITY

A flexible manipulator having a Chinese character "弓"-shaped continuous curved inner cavity, comprising a body (1) and an auxiliary body (2), wherein the body and the auxiliary body can be made of the same or different flexible materials, and a non-extensible layered material (21) can be disposed inside the auxiliary body when the auxiliary body is made. The overall shape of the body looks like a Chinese character "弓", and a continuous closed air cavity (11) shaped like a Chinese character "弓" and an air vent (111) communicating with an external driving air source are disposed inside the body. The auxiliary body is fixedly connected with the bottom surface of the body. During operation, the driving air source inflates or deflates, by means of the air vent, the closed air cavity inside the body, so that bending and stretching movements of the body under the restraint of the auxiliary body are achieved. The Chinese character "弓"-shaped overall arrangement and the Chinese character "弓"-shaped ...

VARIABLE-DRIVE MODE LINKAGE BRANCH, AND PARALLEL MECHANISM COMPRISING SAME

A variable-drive mode linkage branch and a parallel mechanism comprising same. The variable-drive mode linkage branch comprises a support unit, a drive unit, a drive mode switching unit, and a parallelogram branch. The support unit comprises a support plate (12) and bearing housings (5, 7) for mounting the other units. The drive unit consists of a servo motor (11), a motor case (10), and a central rotating shaft (23). The drive mode switching unit comprises two electromagnetic clutches (6, 8) and two electromagnetic brakes (9, 13). The parallelogram branch comprises an upper connecting rod (4), a lower connecting rod (3), an auxiliary rod (2), and an output rod (1). By changing the states of the electromagnetic clutches and the electromagnetic brakes, the positions of the driving torque and the reaction torque of the servo motor can be changed, so that different rods in the parallelogram branch can be driven, and thus three drive modes and switching therebetween can be achieved; the performance ...

MOLD AND METHOD FOR MANUFACTURING SOFT-BODIED ROBOT

Disclosed are a mold and method for manufacturing a soft-bodied robot. The mold comprises an upper mold (1), a lower mold (2), a bottom mold (3) and a corrugated component (4), wherein the upper mold (1) and the lower mold (2) are of the same height, the upper mold (1) is provided with a positioning groove (11), and the lower mold (2) is provided with a positioning protrusion (21) which matches the positioning groove (11); the corrugated component (4) is provided with a left positioning step (41) and a right positioning step (42), and the lower mold (2) is provided with two positioning grooves (22) which respectively match the left positioning step (41) and the right positioning step (42); and the overall height of the corrugated component (4) is lower than the height of the upper mold (1). The mold has a simple structure, is convenient to use, and is low in cost and effective. In addition, the manufactured soft-bodied robot has a special configuration of an air cavity in the shape of the ...

Automatic calibration device and method for single-axis extensometer and double-axis extensometer

The invention belongs to the technical field of strain measurement, and discloses a single-axis and double-axis extensometer automatic calibration device and method.The device comprises a cross-shaped guide rail arranged on the surface of a bottom plate, and two linear rails of the cross-shaped guide rail are each divided into a first section and a second section through a vertical intersection point; the first section is provided with a closed-loop stepping motor, a motor connecting shaft, a movable sliding block and a movable extensometer connecting shaft, and the second section is provided with a fixed sliding block, a locking bolt and an extensometer connecting shaft; the fixed extensometer connecting shaft is matched with the movable extensometer connecting shaft to fix the extensometer; the closed-loop stepping motor is in signal connection with an upper computer, calibration of a double-shaft extensometer can be carried out during synchronous work, and calibration of a single-shaft ...

Four-degree-of-freedom high-temperature vacuum environment box used under neutron diffraction condition

The invention belongs to the technical field of material mechanical property testing, and discloses a four-degree-of-freedom high-temperature vacuum environment box used under a neutron diffraction condition, which comprises a box body and a box door, the box body is integrally formed by a hemispherical shell and a cylindrical shell, is provided with a neutron incident beam window and a transverse diffraction beam window, is connected with an induction coil access flange, a vacuum pump access flange, a thermocouple access flange and a vacuum gauge access flange, and is connected with four pull rods of a mechanical testing machine through pull rod access flanges and corrugated pipes; the box door is composed of a box door fixing part and a box door moving part, the box door fixing part is welded to the box body, the box door moving part is connected with the box door fixing part through a hinge structure, and the box door moving part is provided with an axial diffraction beam window. According ...

Reinforcing structure for shield underneath crossing risk source and construction method of reinforcing structure

The invention discloses a reinforcing structure for a shield tunneling machine underneath passing risk source and a construction method of the reinforcing structure, a pressure bearing plate belt is formed for reinforcing a risk source structure by erecting a grouting pipe on the ground for grouting, and water stop hoops arranged at intervals are formed through reinforcing pipe pieces (within the range of influence on the risk source structure) and shield tunneling machine radial deep hole grouting. And meanwhile, the tunneling parameters of the shield tunneling machine are optimized, so that ground subsidence, structure deformation subsidence and the quality of a formed tunnel are effectively controlled. According to the method, the problems that when a newly-built shield penetrates through the risk source under the ground, the risk source cannot be stabilized well through existing ground reinforcement construction, and the safety risk is large are solved.

High-temperature creep vacuum/atmosphere environment device

The invention belongs to the technical field of material mechanical property testing, and discloses a high-temperature creep vacuum environment/atmosphere device which comprises a quartz glass tube used for containing a creep sample, and the inner surface of the quartz glass tube is covered with a high-temperature-resistant film; the two ends of the quartz glass tube are respectively fixed with the sealing chucks through sealing hoops; the sealing chuck at the upper part is connected with a flange plate of the actuating output shaft through a corrugated pipe, and the flange plate is connected with an exhaust connecting pipe; the actuating output shaft is connected with the loading end of the creep test sample through the test clamp; the fixed end of the creep test sample is connected with the load sensor through the test sample fixing clamping block; and the lower sealing chuck is connected with a heating wire pipe, a thermocouple, a vacuum connecting pipe and an atmosphere connecting pipe ...

Vacuum closing forming device and method for cementing large-area aluminum panel foam sandwich structure

The invention relates to a vacuum closing forming device for cementing a foam sandwich structure of a large-area aluminum panel and a cementing method of the vacuum closing forming device in the technical field of cementing. The vacuum closing forming device comprises a vacuum tank, a buffer tank, a pipeline assembly, a valve assembly, a synchronous lifting mechanism and a vacuum bag. According to the vacuum closing and forming device for foam interlayer common bottom glue joint, through the optimal design of the vacuum tank, the buffer tank, the synchronous lifting mechanism and the vacuum bag assembly, the interior and the exterior of an interlayer common bottom can be vacuumized to preset pressure at the same time, and then gas in the glue joint face is exhausted under the condition that a panel is not subjected to air pressure; and then the panel is folded, so that the glue joint defect caused by air entrained in the glue joint surface is avoided, the deformation of the panel is reduced ...

Energy storage connector

The energy storage connector comprises a socket, a plug and a first ring sleeve, the socket is provided with clamping teeth, the clamping teeth are made of elastic materials, the plug is provided with a jack, the socket is arranged in the jack in a matched mode, the socket can slide in the extending direction of the jack, and the first ring sleeve is arranged on the socket and can slide in the extending direction of the jack. A first ring groove is formed in the inner wall of a jack of the plug, the first ring sleeve is matched with the first ring groove, a plurality of first grooves and a plurality of second grooves are formed in the inner wall of the first ring sleeve, the depth of each first groove is larger than that of each second groove, a rotating position is arranged at the position, located on the inner side of the first ring groove, in the jack, and the rotating position is matched with the first ring sleeve. The rotating position is provided with a stopping face, and the stopping ...