67results about How to "Meet the needs of the design" patented technology

The invention provides a multifunctional sofa design comprising a sofa seat and a backrest. The multifunctional sofa design is characterized in that an upper bottom surface of the sofa seat is openedwith a storage slot internally provided with a plurality of closely-arranged sofa stools; the sofa backrest is hinged and connected to the upper portion of the sofa seat and forms a box structure withthe sofa seat; the back side of the sofa backrest serves as a main table board; corresponding two sides of the main table board are respectively hinged and connected with a table extension board; board face of the table extension board rests against the main table board when the table extension board is closed. The multifunctional sofa design has the advantages of being used as a sofa as well asa tea table, effectively improving versatility of furniture, and satisfying the needs of the design of small intensive apartments.

The invention discloses a permanent-magnet wind-driven generator capable of realizing self-acceleration of a magnetic field. The generator comprises a rotor (1), an air gap (2) and a stator (3) which are arrayed coaxially from outside to inside, and the air gap (2) is reserved between the rotor (1) and the stator (3). The rotor (1) comprises a plurality of rotor cores (11) and rotor permanent magnets (12), wherein the rotor cores (11) are equidistantly arrayed at intervals, and each rotor permanent magnet (12) is embedded into each two adjacent rotor cores (11). The stator (3) comprises a stator yoke (31), a plurality of stator teeth (32) and multiphase symmetrical armature windings (33), wherein the stator yoke (31) is coaxial to the rotor (1), the stator teeth (32) project over the periphery of the stator yoke (31), a stator inter-tooth space is arranged between each two adjacent stator teeth (32), and the multiphase symmetrical armature windings (33) are embedded into the stator inter-tooth spaces. The permanent-magnet wind-driven generator realizes self-acceleration of the magnetic field by means of magnetic field modulating action of the stator teeth, a stator structure is simple, the armature windings are convenient to wind, the rotor is low-speed, high-torque and high in direct-driven capability, and accordingly the permanent-magnet wind-driven generator is applicable to the low-speed and high-torque fields of wind-driven generation and the like.

The invention provides a variable-wave-length two-dimensional optical rotation device with controllable polarizability and a preparation method of the variable-wave-length two-dimensional optical rotation device, and relates to generation of continuously adjustable wave length rotation light and regulation and control of polarizability. The device is based on a III-VI group chalcogenide two-dimensional material and a ferromagnetic metal clustering heterostructure, a ferromagnetic metal layer injects a spin polarization current carrier into the III-VI group chalcogenide two-dimensional materialvia an interface coupling effect, and by control over the morphology and dimensional of ferromagnetic metal clusters in the ferromagnetic metal layer, the directions of magnetic moments in the ferromagnetic metal clusters and the magnetic coupling effect of the ferromagnetic metal clusters and the III-VI group chalcogenide two-dimensional material are adjusted; and the band gap width of the III-VI group chalcogenide two-dimensional material is adjusted further through an additional perpendicular electric field, thus, the device generates an optical rotation effect which has controllable spinpolarizability under excitation of incident light, and the wavelength of the optical rotation effect is continuously adjustable in a broad band range from ultraviolet rays to infrared rays.