Abstract: A wheeled distance measuring device includes: a first clamping base, a second clamping base and a roller shaped measuring body; the first clamping base is provided with a mounting axis, used to fixedly connected to the second clamping base; the surrounding of the measuring body is provided with a measuring surface abutted with the surface of the measured object; a scale is arranged along the surrounding of the measuring body. This wheeled distance measuring device has a simple structure, is easy to assemble and convenient to operate, and reduces the cost of production efficiently.

Abstract: A system includes a message broker that uses a publish/subscribe messaging protocol. An edge gateway operatively couples one or more edge devices to the message broker. The edge gateway receives information from one or more of the edge devices and publishes at least some of the received information to the message broker in a protocol that is compatible with the publish/subscribe messaging protocol of the message broker. A host application is operatively coupled to the message broker and subscribes to at least some of the information published by the edge gateway. The edge gateway is configured to determine an edge gateway connection state and publish the edge gateway connection state to the message broker. The host application is configured to determine a host application connection state of the host application and publish the host application connection state to the message broker.

Abstract: A discover method includes a collection phase and a subsequent discovery phase. The collection phase includes receiving an NBIRTH message for each node and receiving a DBIRTH message for each device. A group ID and a corresponding node ID are extracted and cached from each NBIRTH message and a group ID, a node ID and a device ID are extracted from each DBIRTH message. The discovery phase includes publishing a REBIRTH message for each node having a cached group ID and node ID. The REBIRTH message causes the corresponding node to publish an NBIRTH message for the corresponding node, as well as a DBIRTH message for each associated device. Nodes may be discovered based on the NBIRTH messages published during the discovery phase and devices may be discovered based on the DBIRTH messages published during the discovery phase.

Abstract: The invention provides a living radical polymerization method using a zinc phthalocyanine dye as a near-infrared photocatalyst, including subjecting a free radical polymerizable monomer to a near-infrared light-controlled polymerization reaction, in the presence of a chain transfer agent, a cocatalyst and a zinc phthalocyanine dye containing a carbon-carbon double bond, in a solvent at 0-30° C. under the air atmosphere, to obtain a living radical polymerization product. The free radical polymerizable monomer is an acrylate monomer, a methacrylate monomer, an acrylamide monomer or a methacrylamide monomer; the chain transfer agent includes a thiocarbonate; and the cocatalyst includes an organic amine with or without a carbon-carbon double bond.

Abstract: The present invention provides a “living” radical polymerization method for a vinyl monomer by near-infrared photothermal conversion. The method comprises irradiating a reactor with near-infrared light of 750-850 nm, wherein the reactor has a first chamber and a second chamber that are isolated from each other, the first chamber contains an organic solution of a near-infrared light responsive croconaine dye, and the second chamber is provided with a closed reaction flask containing a reaction solution, the reaction solution comprises a vinyl monomer, two or more of an ATRP initiator, an ATRP ligand, an ATRP catalyst, an RAFT reagent, a thermal initiator, and an additive, and an organic solvent; and the near-infrared light responsive dye converts the near-infrared light into heat energy, by which the reactor is heated to 50-100° C. to polymerize the monomer in the reaction solution, to obtain polymers with controlled molecular weights and molecular weight distributions.

Abstract: The present invention provides a fluorine-containing liquid crystal polymer of Formula (1). The present invention also discloses a fluorine-containing liquid crystal elastomer, which comprises a copolymer of a fluorine-containing liquid crystal polymer of Formula (1) with a near-infrared dye of Formula (2). The fluorine-containing liquid crystal elastomer of the present invention shrinks due to the photothermal conversion effect of the material under the irradiation of near-infrared light, and thus is widely applicable to the field of actuators. The fluorine-containing liquid crystal polymer of the present invention introduces fluorine-containing segments into the cross-linked network of the liquid crystal polymer, to improve the mechanical performance of the material, and greatly extend the service time of light-controlled actuators.

Abstract: The invention provides a fluorine-containing graft copolymer, and a preparation method and use thereof. The method includes the following steps: under a protective atmosphere, reacting a compound of Formula (I) and a compound of Formula (II) in a first organic solvent in the presence of a catalyst and a ligand at 20-30° C., to obtain the fluorine-containing graft copolymers of Formula (III) after complete reaction. The compounds of Formulas (I) and (II), and the fluorine-containing graft copolymer of Formula (III) have a structural formula shown below: and the compound of Formula (II) comprises a polyethylene glycol segment and a terminal alkynyl group, wherein a=4-8; b=6-8; n=1-20; and m=3-22. In the present invention, a graft copolymer of a main-chain-type “semi-fluorinated” alternating copolymer is obtained for the first time by post-polymerization modification using a reactive functional group contained in the main-chain-type “semi-fluorinated” alternating copolymers.

Abstract: The invention provides a living radical polymerization method using a zinc phthalocyanine dye as a near-infrared photocatalyst, including subjecting a free radical polymerizable monomer to a near-infrared light-controlled polymerization reaction, in the presence of a chain transfer agent, a cocatalyst and a zinc phthalocyanine dye containing a carbon-carbon double bond, in a solvent at 0-30° C. under the air atmosphere, to obtain a living radical polymerization product. The free radical polymerizable monomer is an acrylate monomer, a methacrylate monomer, an acrylamide monomer or a methacrylamide monomer; the chain transfer agent includes a thiocarbonate; and the cocatalyst includes an organic amine with or without a carbon-carbon double bond.

Abstract: The present invention provides a fluorine-containing liquid crystal polymer of Formula (1). The present invention also discloses a fluorine-containing liquid crystal elastomer, which comprises a copolymer of a fluorine-containing liquid crystal polymer of Formula (1) with a near-infrared dye of Formula (2). The fluorine-containing liquid crystal elastomer of the present invention shrinks due to the photothermal conversion effect of the material under the irradiation of near-infrared light, and thus is widely applicable to the field of actuators. The fluorine-containing liquid crystal polymer of the present invention introduces fluorine-containing segments into the cross-linked network of the liquid crystal polymer, to improve the mechanical performance of the material, and greatly extend the service time of light-controlled actuators.

Abstract: The present invention provides a “living” radical polymerization method for a vinyl monomer by near-infrared photothermal conversion. The method comprises irradiating a reactor with near-infrared light of 750-850 nm, wherein the reactor has a first chamber and a second chamber that are isolated from each other, the first chamber contains an organic solution of a near-infrared light responsive croconaine dye, and the second chamber is provided with a closed reaction flask containing a reaction solution, the reaction solution comprises a vinyl monomer, two or more of an ATRP initiator, an ATRP ligand, an ATRP catalyst, an RAFT reagent, a thermal initiator, and an additive, and an organic solvent; and the near-infrared light responsive dye converts the near-infrared light into heat energy, by which the reactor is heated to 50-100° C. to polymerize the monomer in the reaction solution, to obtain polymers with controlled molecular weights and molecular weight distributions.

Abstract: The present invention relates to a photopolymerization method for preparing a block polymer with a main-chain “semi-fluorinated” alternating copolymer, which comprises the following steps: under a protective atmosphere, subjecting a methacrylate monomer and a “semi-fluorinated” alternating copolymer (AB)n macroinitiator to light-controlled living radical polymerization in an organic solvent at 20-30° C. in the presence of a photocatalyst, where the polymerization reaction is continued for at least half an hour under irradiation of light at 390-590 nm, to obtain a block copolymer of a main-chain polyolefin, polyester, or polyether “semi-fluorinated” alternating copolymer. The polymerization method is carried out under irradiation of visible light, the polymerization process has the characteristics of “living” radical polymerization, and the molecular weight distribution of the prepared polymer is narrow.

Abstract: The invention relates to medicines, and more particularly to an abortion medication and an administration thereof, where the abortion medication contains 40-60 mg/mL of a kidney bean lectin. The invention also provides another abortion medication, which contains 40-60 mg/mL of a kidney bean lectin, 40-50 mg/mL of an oligosaccharide and 6-9 mg/mL of NaCl. The two abortion medications provided herein are both capable of effectively terminating the pregnancy and are safe without toxic side effects. Moreover, these drugs can be reused several times. These abortion medications are administered intrauterinely, which enables the kidney bean lectin therein to show the best abortive effect, and the local administration of these drugs in the uterine cavity has relatively simple operation.

Abstract: The invention relates to medicines, and more particularly to an abortion medication and an administration thereof, where the abortion medication contains 40-60 mg/mL of a kidney bean lectin. The invention also provides another abortion medication, which contains 40-60 mg/mL of a kidney bean lectin, 40-50 mg/mL of an oligosaccharide and 6-9 mg/mL of NaCl. The two abortion medications provided herein are both capable of effectively terminating the pregnancy and are safe without toxic side effects. Moreover, these drugs can be reused several times. These abortion medications are administered intrauterinely, which enables the kidney bean lectin therein to show the best abortive effect, and the local administration of these drugs in the uterine cavity has relatively simple operation.