38results about How to "Obvious structural advantages" patented technology

A method for manufacturing tobacco sheet taking substrate as a carrier through a dry paper making method comprises the following steps: spraying slurry onto the right side of the substrate through a high pressure spraying method, and meanwhile carrying out negative pressure suction across a wire belt to the reverse side of the substrate; then sending the substrate into an oven and carrying out medium temperature baking and humidity discharging under the condition that the temperature of the substrate is 55 DEG to 70 DEG, and enabling hot air inside the oven to flow directional from the right surface of the substrate to the reverse surface of the substrate to carry out humidity discharging; sequentially, carrying out normal temperature humidity discharging treatment; setting medium temperature baking and humidity discharging time and the normal temperature baking and humidity discharging alternatively; and repeating the steps on the reverse side of the substrate, namely a tobacco sheet is prepared. The substrate is prepared by that scattered material is evenly paved and absorbed onto a formation fabric for dry paper making to form a fiber thin layer under the vacuumpumping of a vacuum air pumping device under the formation fabric, and carrying out antistatic-electricity treatment; and spraying adhesion agent onto a fiber thin layer, under the combination of mist spraying and vacuum take-off on sprayed back surface; and finally carrying out drying.

The invention discloses a method for manufacturing remanufactured tobacco base sheets with a dry paper-making method. The method comprises the steps as follows: raw materials including cabo and plant fibers are ground and broken into short fibers, and then fed by wind into a forming head box for breaking up; by the aid of the vacuum pumping action of a vacuum evacuating device under a forming net, the broken-up materials are uniformly laid and adsorbed on the forming net for dry paper-making, so that a thin fiber layer is formed; the thin fiber layer is sprayed with an adhesion agent, and a manner combing mist spraying and vacuum drawing of a prayed back surface is adopted; finally the materials are dried and the tobacco base sheets are obtained; an antistatic rope is laid between the forming net and the forming head box and/or between the forming net and an opening of a vacuum box; or/and an antistatic net is arranged between the forming net and the opening of the vacuum box; the adhesion agent comprises chitosan and the like; and the remanufactured tobacco base sheets having higher wet strength stretching-resistant capacity and filling value and good processing performance are prepared with the dry paper-making method successfully for the first time.

The invention relates to an aircraft (1), preferably an unmanned aircraft (UAV), drone, or unmanned aerial system (UAS), comprising a rigid wing (2), which enables aerodynamic horizontal flight, and at least four rotors (4, 4'), which are driven by means of controllable electric motors (5) and which can be pivoted between a vertical starting position and a horizontal flight position by means of a pivoting mechanism (7), wherein all electric motors (5) and rotors (4) are arranged on the wing (2).

The invention relates to a preparation method of a network-like carbon-loaded iron-based compound material and an application of the network-like carbon-loaded iron-based compound material in a lithium-sulfur battery, and belongs to the field of electrochemistry; the method comprises the following steps of taking slightly oxidized graphene as a substrate, taking ferric nitrate nonahydrate as an iron source, taking glucose hydrothermal carbon as a carbon source of iron carbide and a pore-forming substrate, taking ammonia gas generated in the high-temperature pyrolysis process of melamine as a nitrogen source of an iron-nitrogen compound, and meanwhile, enabling ammonia to corrode the glucose hydrothermal carbon substrate to generate a net-shaped structure. The method has the beneficial effects that 1) the process is simple, and the product cost is low; 2) the obtained positive electrode material has a rich hole structure and ion and electron transport channels, the conductivity of the material can be improved, and the loss of the polysulfide compound can be effectively inhibited, the stability of the electrode material is remarkably improved, and the electrochemical performance is improved; and 4) the adsorption and catalysis of the polysulfide compound are achieved by utilizing the synergistic effect of the iron carbide and the iron-nitrogen compound, and the catalytic action can be used for accelerating the reaction dynamics of the lithium-sulfur battery, so that the transition of the soluble polysulfide compound to insoluble sulfide is accelerated, and the shuttle effectis greatly inhibited.

The invention relates to a method for preparing an anode material of an S-Ni3C/NiO composite lithium-sulfur battery. The method comprises the steps of: firstly preparing a nickel-based metal organic frame (Ni-BTC), then using the nickel-based metal organic frame to prepare nickel carbide/nickel oxide (Ni3C/NiO), and then preparing an S-Ni3C/NiO composite material by compounding the nickel carbide/nickel oxide with sulfur to serve as the anode material of the lithium-sulfur battery. A hollow spherical structure ensures full contact between electrolyte and active substances to provide more oxidative active sites, the nickel oxide with higher specific capacity is obtained at high current density to cooperate with the nickel carbide to improve the electrochemical performance of the lithium-sulfur battery together.

The invention provides a superlattice material embedded with quantum wires, a preparation method of the superlattice material, an infrared band luminescent material and a detector. The superlattice material embedded with the quantum wires comprises at least one InAs/GaSb layer and at least one single substance layer which are arranged in a stacked mode. The InAs/GaSb layer comprises an InAs part and a GaSb part, and the single substance layer comprises InAs or GaSb; the InAs portions and the GaSb portions are alternately arranged and have different widths along the arrangement direction. The preparation method of the superlattice material embedded with the quantum wire comprises the step of sequentially growing the InAs/GaSb layer and the single substance layer on the substrate according to the structure. An infrared band light emitting material includes a superlattice material in which quantum lines are embedded. A detector comprises an infrared band luminescent material. According tothe superlattice material embedded with the quantum lines, the quantum lines are introduced into the II-type superlattice to form a line superlattice composite structure, the working temperature of adevice can be improved, and the photoelectric property of the material is improved.

The invention discloses a synthesis method of a MnO nanometer material of a T1 contrast agent, and relates to a magnetic nanometer material. The method comprises the following steps: mixing trioctylamine with an oleic acid solution evenly; adding manganese acetate powder; dispersing, carrying out heating reaction, and cooling to room temperature; and participating and centrifuging reaction products, and washing, so as to obtain the MnO nanometer material of the T1 contrast agent. The method for preparing the MnO nanometer material of the T1 contrast agent is simple to operate; a reactant is cheap, and low in cost; the reaction is rapidly finished; the required time is short; the synthesis method hardly causes side reactions and high in product yield; energy utilization rate is high; the reaction process is free from generation of harmful substances and is energy-saving and environment-friendly; and the MnO nanometer material has good paramagnetism and T1 contrast effect; r1 value is 2.369mM<-1>s<-1>; and the prepared MnO magnetic nanometer particles are uniform in particle size, have good dispersity and stability, and can be stored for a long period of time after being dispersed in cyclohexane.

The invention discloses a simple construction method of a nano carbon shell loaded molybdenum-based heterojunction and application of the nano carbon shell loaded molybdenum-based heterojunction in a lithium-sulfur battery, and belongs to the field of lithium-sulfur batteries. The molybdenum-based heterojunction coupled nano carbon shell is used as a diaphragm modification material. The molybdenum disulfide/carbon shell material is treated with low-concentration hydrogen peroxide under mild conditions, and molybdenum trioxide heterojunction is generated on the surface of molybdenum disulfide to obtain the molybdenum disulfide-molybdenum trioxide/carbon shell modified diaphragm. The reaction conditions are mild, the preparation method is simple, the obtained product has obvious structural advantages, the two-dimensional heterostructure can accelerate transmission of electrons and ions to provide a large number of catalytic sites, and the two-dimensional heterostructure has strong polarity and can improve the adsorption capacity of polysulfide, so that the electrochemical performance is improved; and in addition, a high-conductivity carbon shell is introduced into the synthesized material, so that electron transmission of the synthesized material can be further increased, and polysulfide conversion is accelerated.

The invention provides a horn-shaped antenna transmitting and emitting RF signals in different frequency ranges, and aims at providing an emitter which is simple in structure, easy to process and capable of transmitting the RF signals in different frequency ranges simultaneously. The internal of an external dielectric layer (1) is connected with a metal layer (2), the external dielectric layer and the metal layer are coaxially fixed to the small end of a tapered horn of a metal horn body (4) in the vertical direction, and the external dielectric layer extends along the tapered surface of the metal horn body (4) via a small-end port of the tapered horn to form a horn dielectric layer (3); and the RF signals in different frequency ranges are transmitted to the small-end port of the tapered horn simultaneously via a dielectric body area of the external dielectric layer (1) and a conductor cavity of the metal layer (2) respectively, and are emitted via a dielectric area of the horn dielectric layer (3) and a conductor cavity of the metal horn body (4). According to the horn-shaped antenna, the problem that an RF signal waveguide structure capable of transmitting RF signals in the same frequency range cannot be structurally integrated with the antenna is solved.

The invention discloses a safety control chip for a transient self-destruction system of a memory. The safety control chip comprises a safety control chip substrate and a sliding cavity arranged on the safety control chip substrate, and an energetic sliding block capable of sliding is arranged in the sliding cavity; and the inner side of the sliding cavity is provided with a limiting element mounting hole and a self-destruction chip input line which are matched with the energetic sliding block to work. The safety control chip for the transient self-destruction system of the memory provided by the invention is reliable in acting, simple and small in structure and controllable in energy, can be independently used, can also be effectively compatible with other self-destruction systems, and is plug-and-play. The electrical excitation element and the energy-containing working sequence can be designed separately, and standard products can be selected, so that the electrical excitation element and the energy-containing working sequence have good replaceability. The charging structure containing the energy sliding block and the safety control module can be randomly adjusted according to the self-destruction system, the universality is high, when the self-destruction system faces a flat installation space, the structure has more obvious advantages, and no other better alternative scheme exists temporarily.

The invention relates to the field of preparation of multi-dimensional high-order superlattices, and particularly discloses a preparation method of a high-order superlattice, which comprises the following steps of: (1) preparing a vertical heterojunction material; and (2) adding a functional solvent to the surface of the vertical heterojunction material within 2 hours from the vertical heterogeneous combination, so as to obtain the high-order superlattice, the functional solvent is an organic solvent-water homogeneous solution; or an organic solvent-water-alkali homogeneous solution. The research of the invention proves for the first time that the high-order Van der Waals superlattice with various material components and sizes can be used for creating a highly engineered structure, thereby exceeding the traditional lattice matching or processing compatibility requirements.

A top-mounted non-blocking dispersedly-stressed stove comprises a stove shell, a decorative cover plate and at least one supporting plate, wherein the shell is provided with a cavity for placing stove burners; the cavity is provided with an opening; the decorative cover plate is placed on the stove shell so as to cover the opening of the stove shell; at least one through hole is formed in the decorative cover plate, and by virtue of the through hole, a top-mounted non-blocking space is formed; supporting structures are arranged on the at least one supporting plate in an extending or connecting manner by virtue of the supporting plate itself; by virtue of the supporting structures, the supporting plate is stressed by the stove shell or the decorative cover plate or the stove burner. The top-mounted non-blocking structural advantage of the top-mounted non-blocking dispersedly-stressed stove is obvious; the safety level is effectively enhanced; the cost is reduced; the top-mounted non-blocking dispersedly-stressed stove is more convenient to produce, assemble, maintain and use; the production and maintenance operation efficiency is greatly improved; panel scrapping and stove burner scrapping which are caused by stress concentration are effectively prevented; the top-mounted non-blocking structure breaks through the conventional bottom-mounted way, leads the epoch-making change in the stove structure, and has a great significance in network sale and after-sale service and convenience of a user experience.

The invention discloses a foldable frame structure applied to a portable baby carriage, and relates to the field of baby carriages. The foldable frame structure mainly solves the problems that a babycarriage is large in storage size after being folded, storage steps are tedious, and an injection-molded piece is high in production cost and short in service life. The foldable frame structure applied to the portable baby carriage comprises front leg brackets (1), pulling rods (2), back leg brackets (3), a seat board (4), armrest brackets (5) and backrest brackets (6), and is characterized in that the front leg brackets (1), the pulling rods (2), the back leg brackets (3), the seat board (4), the armrest brackets (5) and the backrest brackets (6) jointly form two linked four-connecting-rod folding structures. Locking mechanisms (7) are arranged between the front leg brackets (1) and the back leg brackets (3). A backup plate (8) is arranged on the backrest brackets (6).