Abstract: Disclosed are a series of photoisomeric compounds, preparation method therefor and device comprising the compounds. A photoisomeric compound-grephene molecular junction device is formed by linking the photoisomeric compound to a gap of two-dimensional monolayer graphene having a nano-gap array via an amide covalent bond. When a single photoisomeric compound is bridged to the gap of the two-dimensional monolayer graphene having a nano-gap array, the devices have a reversible light-controlled switching function and a reversible electrically-controlled switching function. A molecular switch device prepared by the method can achieve high reversibility and good reproducibility. The number of light-controlled switching cycles can exceed 104, and the number of electrically-controlled switching cycles can reach about 105 or greater. The reversible molecular switch device remains stable within a period of more than one year.

Abstract: A method for avoiding file deadlock during concurrent access of a sqlite database is disclosed, wherein, in a software design stage, divide the client sqlite database from one into two or more, and each sqlite database is corresponding to the requirement of a certain type of writing operation of the software system. Respectively classify all the data tables used in the software according to the different types of writing operation and place them in different sqlite database files. This could ensure that different types of writing operations are respectively corresponding to different files, and when multiple threads of the application software generate writing operations at the same time, since they respectively write into different physical disk files, so as to avoid the problem that one sqlite database file cannot be concurrently written by multiple threads at the same time.

Abstract: A container for inks, paints, cosmetics, and the like, having a sponge applicator affixed within the container's threaded cap, is provided. When the cap is attached to the container, the sponge fits closely within a perforated mask located in the neck of the container. The mask controls the amount of material that can be transferred to and carried by the applicator when it is removed from the container. In preferred embodiments, the sponge applicator is automatically extended from the cap as the cap is removed from the container, and is automatically retracted into the cap as the cap is screwed onto the container.

Abstract: The invention provides a container for inks, paints, cosmetics, and the like, having a sponge applicator affixed within the container's threaded cap. When the cap is attached to the container, the sponge fits closely within a perforated mask located in the neck of the container. The mask controls the amount of material that can be transferred to and carried by the applicator when it is removed from the container. In preferred embodiments, the sponge applicator is automatically extended from the cap as the cap is removed from the container, and is automatically retracted into the cap as the cap is screwed onto the container.

Abstract: An inverted tricycle, which includes: deflecting and steering mechanism, rear frame, driving wheel, two front wheels, said deflecting and steering mechanism configured on the front end of said rear frame, said two front wheels and said deflecting and steering mechanism connected to each other, and symmetrically configured on the left and right sides of the front end of said rear frame, with the rear frame as the axis of symmetry, said driving wheel configured on the rear end of said rear frame. By adopting the above technical scheme, the left and right rocker arms are hinged to the main frame along the same axis. When the tricycle is turned or tilted, they can be always parallel to each other, and the driving will be more stable. The left and right rocker arms are two independent gravity center deflection systems that will not interfere with each other; meanwhile, the structure with single damper can greatly reduce the manufacturing cost of the present invention.

Abstract: A transportation vehicle is disclosed, including front frame and rear frame. The front frame and rear frame are hinged together and the rear frame can swing left and right with respect to the front frame; the two sides of the front frame are provided with two wheel hub axles, and the driven wheels are connected to the front frame through the wheel hub axles; the rear frame is provided with a vertically configured connecting rod; the connecting rod is flexibly connected to the middle portion of the first push-pull rod, and the two ends of the first push-pull rod can swing up and down; the two ends of the first push-pull rod are respectively connected to the wheel hub axles through the rocker arm connecting rod mechanism. Through configurations of the first push-pull rod, wheel hub axles and rocker arm connecting rod mechanisms, when the transportation vehicle is making a turn, the gravity component of the human body and vehicle can offset the centrifugal force generated by the human body and vehicle.

Abstract: A polymer composite grouting method for blocking leaking and sand inrush of underground pipeline includes steps of: (1) determining a leaking and sand inrush position of an underground pipeline; (2) drilling a plurality of grouting holes in a ground surface; (3) placing two grouting pipes into each of the grouting holes, binding a film bag at a bottom of one of the grouting pipes; (4) injecting a polymer grouting material via one of the grouting pipes to form a polymer sand stabilizing body; (5) extruding water to accumulated in the pipeline; (6) installing a plurality of geotextile bags at the pipeline section displacement; (7) injecting the polymer material into the geotextile bags for blocking the leakage; and (8) filling the pumping area out of the pipeline. The present invention provides a practical technical measure to treat the leaking and sand inrush of the underground pipeline under complicated geological condition.

Abstract: A transportation vehicle is disclosed, including front frame and rear frame. The front frame and rear frame are hinged together and the rear frame can swing left and right with respect to the front frame; the two sides of the front frame are provided with two wheel hub axles, and the driven wheels are connected to the front frame through the wheel hub axles; the rear frame is provided with a vertically configured connecting rod; the connecting rod is flexibly connected to the middle portion of the first push-pull rod, and the two ends of the first push-pull rod can swing up and down; the two ends of the first push-pull rod are respectively connected to the wheel hub axles through the rocker aim connecting rod mechanism. Through configurations of the first push-pull rod, wheel hub axles and rocker arm connecting rod mechanisms, when the transportation vehicle is making a turn, the gravity component of the human body and vehicle can offset the centrifugal force generated by the human body and vehicle.

Abstract: The present disclosure provides a human-computer intelligence chatting method and device. The method includes: receiving a multimodal input signal, the multimodal input signal comprising at least one of a speech signal, an image signal, a sensor signal and an event driving signal; processing the multimodal input signal to obtain text data, and obtaining an intention of a user according to the text data; obtaining an answer corresponding to the intention of the user, and converting the answer to a multimodal output signal; and outputting the multimodal output signal.

Abstract: An inverted tricycle, which includes: deflecting and steering mechanism, rear frame, driving wheel, two front wheels, said deflecting and steering mechanism configured on the front end of said rear frame, said two front wheels and said deflecting and steering mechanism connected to each other, and symmetrically configured on the left and right sides of the front end of said rear frame, with the rear frame as the axis of symmetry, said driving wheel configured on the rear end of said rear frame. By adopting the above technical scheme, the left and right rocker arms are hinged to the main frame along the same axis. When the tricycle is turned or tilted, they can be always parallel to each other, and the driving will be more stable. The left and right rocker arms are two independent gravity center deflection systems that will not interfere with each other; meanwhile, the structure with single damper can greatly reduce the manufacturing cost of the present invention.

Abstract: A polymer composite grouting method for blocking leaking and sand inrush of underground pipeline includes steps of: (1) determining a leaking and sand inrush position of an underground pipeline; (2) drilling a plurality of grouting holes in a ground surface; (3) placing two grouting pipes into each of the grouting holes, binding a film bag at a bottom of one of the grouting pipes; (4) injecting a polymer grouting material via one of the grouting pipes to form a polymer sand stabilizing body; (5) extruding water to accumulated in the pipeline; (6) installing a plurality of geotextile bags at the pipeline section displacement; (7) injecting the polymer material into the geotextile bags for blocking the leakage; and (8) filling the pumping area out of the pipeline. The present invention provides a practical technical measure to treat the leaking and sand inrush of the underground pipeline under complicated geological condition.

Abstract: A grouting method for anchoring with polymer is provided, wherein the method includes steps of: a) rod body processing; b) tying up a geotextile bag and grouting tubes on the anchoring rod body; c) hole drilling; d) polymer grouting: I. hole sealing grouting; II. anchoring grouting. The present invention has advantages of a sufficient adaptability, non-water reaction, convenient and fast construction, being economic, a high strength and a high durability. An expansive polymer material has an obvious compacting effect on soil, and is capable of increasing a friction force between a grout and a base; the water-proofing polymer material is an impermeable material for a steel rod body, and is of benefit to anti-corrosion and durability of the rod body; a solidifying time of the polymer material is short and no maintenance is needed in such a manner that construction periods are shortened.

Abstract: A polymer grouting method for constructing multi-wing pile, includes steps of: (1) arranging the positions of piles; (2) producing multi-wing drilling tool and locating holes; (3) installing grouting pipes; (4) polymer lifting grouting; (5) forming polymer multi-wing piles. According to the geologic characteristics, the three-wing drilling tool or the four-wing drilling tool are produced through pressing the drilling tool into each location of pile by a static pressure equipment to form the multi-wing holes, and injecting two-component expansive polymer materials to the holes, wherein the polymers expand and solidify after reacting for filling the holes and the gaps in the soil of slope to be fully integrated with the surrounding soil and form the polymer multi-wing piles.

Abstract: A grouting method for anchoring with polymer is provided, wherein the method includes steps of: a) rod body processing; b) tying up a geotextile bag and grouting tubes on the anchoring rod body; c) hole drilling; d) polymer grouting: I. hole sealing grouting; II. anchoring grouting. The present invention has advantages of a sufficient adaptability, non-water reaction, convenient and fast construction, being economic, a high strength and a high durability. An expansive polymer material has an obvious compacting effect on soil, and is capable of increasing a friction force between a grout and a base; the water-proofing polymer material is an impermeable material for a steel rod body, and is of benefit to anti-corrosion and durability of the rod body; a solidifying time of the polymer material is short and no maintenance is needed in such a manner that construction periods are shortened.

Abstract: A heat dissipation device and a radio frequency module with the same are provided. The heat dissipation device includes a substrate (1). The substrate (1) having a surface where a heat absorbing surface (5) is formed. There are multiple hollow conduits inside the substrate (1) to act as evaporating conduits (6). The heat dissipation device further comprises condensing conduits (7) intercommunicated with the evaporating conduits (6). The evaporating conduits (6) and the condensing conduits (7) form sealed conduits. The sealed conduits are filled with liquid which vaporizes upon heating. At least the evaporating conduits (6) are set in the substrate (1).