38results about How to "Fully contracted" patented technology

The invention discloses a portable telescopic unmanned aerial vehicle. The technical problem that the volume of an existing telescopic unmanned aerial vehicle cannot be sufficiently shrunk is solved. The unmanned aerial vehicle comprises a vehicle body; vehicle arms are arranged on the side edges of the vehicle body, telescopic supports are connected between the vehicle body and the vehicle arms, and power portions are arranged at the two ends of the vehicle arms correspondingly; power portions comprise motors and propellers, wherein the motors and the propellers are assembled together, the orientation of the propellers can be rotatably adjusted through the power portions on the vehicle arms, and the telescopic supports are connected with the power portions through connecting rods; the vehicle arms are pulled outwards, the telescopic supports are expanded and deformed, and the power portions are driven by the connecting rods to rotate to adjust the orientation of the propellers to be upward; and the vehicle arms are pushed inwards, the telescopic supports are shrunk and deformed, and the power portions are driven by the connecting rods to rotate to adjust the orientation of the propellers to be horizontal. According to the portable telescopic unmanned aerial vehicle, the vehicle arms are each arranged to be of a structure capable of integrally moving relative to the vehicle body, and the motors and the propellers are driven to rotate while the vehicle arms are shrunk, so that the volume of the unmanned aerial vehicle is sufficiently reduced.

The invention discloses Lingnan cattle and a breeding method thereof. The Lingnan cattle are obtained in the following manner that black Angus bulls and Weizhou cattle are subjected to hybridization to obtain F1 generation Anwei hybridization cattle, kuroge washu as a male parent and the F1 generation Anwei hybridization cattle are subjected to three way hybridization to obtain F2 generation Anweihe hybridization cattle, besides, the black Angus bulls and Nandan cattle are subjected to hybridization to obtain F1 generation Annan hybridization cattle, the F2 generation Anweihe hybridization cattle and the F1 generation Annan hybridization cattle are subjected to hybridization to form a four way hybridization synthesis line, and the synthesis line is subjected to athwart cross fixation, so as to obtain the Lingnan cattle which are high in growth rate, high in meat yield, good in beef quality and large in size, and can be adaptive to local climate of Guangxi. The breeding method is adopted for improving the local cattle of Guangxi, so that the Lingnan cattle are obtained, and requirements for superior beef in markets can be met.

The invention discloses a high-pressure vapour sterilization method of a mushroom stick. The method comprises the steps that (1),the mushroom stick is punctured, a breathable film is bonded to the mushroom stick, and the breathable film is sealed after the mushroom stick is placed in a high-temperature sterilization device; (2), vapour is added, an air inlet valve is adjusted to a lower magnitudewhen the pressure is increased to 0.9 kg / cm <2>, an air discharging valve is switched on gradually, the air inlet valve is completely switched on when the pressure drops to zero, the state of the airinlet valve is maintained for 3-5 min until dense vapour is discharged out from an air discharging port, the air discharging valve is switched off, and the air discharging operation is repeated; (3),when the vapour pressure is increased to 0.8 kg / cm <2> and the temperature is increased to 108 DEG C + / - 1 DEG C, the air inlet valve is adjusted to stabilize the pressure and the temperature, and the pressure and the temperature are maintained for 4 hours; (4), the vapour pressure is adjusted from 0.8 kg / cm <2> to 0.4 kg / cm <2> within 0.8-1 hour, the temperature is 105 DEG C + / - 1 DEG C, andthe pressure and the temperature are stabilized for 5 hours; (5), the air inlet valve is switched off, the air discharging valve is switched on when the vapour pressure is naturally reduced to 0.1 kg / cm <2>, the air discharging valve is switched off when no vapour is discharged from the air discharged valve, and the sterilization is completed.

The invention provides growing equipment for growing YVO4 (Yttrium Vanadate) crystal with a drawing method and a growing method based on the same. The growing equipment is provided with a temperature control system and a post-heating system, and the temperature control system stably controls a heating system through heating power. In the post-heating system, the upper end of a melting crucible is provided with post-heating metal sheets. In a heat-insulation system, the upper end of the melting crucible is provided with multiple corundum heat-insulation covers. A seed crystal lifting clamping bar penetrates through the post-heating metal sheets and the multiple heat-insulation covers. For the growing method, in the process of temperature rising, at low temperature, the heating power is maintained for a long time; the rate of temperature fall is adjusted under different states in the growing process by combining the lifting speed of the seed crystal clamping bar and the design of a temperature field; and the best temperature rising, constant temperature and temperature fall method of the heat treatment temperature is determined at a later stage. According to the growing equipment and the growing method based on the growing equipment, the YVO4 crystal with high quality and a large size can be provided.

The invention discloses a Lingnan cattle and a breeding method thereof. The Lingnan cattle are crossed with a black Angus bull and a Weizhou yellow cattle cow to obtain the F1 generation of Anwei hybrid cattle, and then Japanese Wagyu is used as the male parent to breed with the Weizhou cattle. The F1 generation cows of Anwei hybrid cattle were three-way crossed to obtain the F2 generation of Anwei and hybrid cattle. At the same time, black Angus bulls were crossed with Nandan yellow cattle cows to obtain the F1 generation of Annan hybrid cattle, and then Anwei Crossbreed with the F2 generation of hybrid cattle and the F1 generation of Annan hybrid cattle to form a four-way hybrid synthetic line, and fix the synthetic line crosswise to obtain a fast-growing, high-yielding meat rate, good beef quality, large body size and adaptability Lingnan cattle from the local climate of Guangxi. The Lingnan cattle obtained by improving local yellow cattle in Guangxi through the breeding method of the present invention can meet the market demand for high-quality beef.

The invention discloses a production process of bubble wrinkle lattice fabric, which is characterized in that it comprises the following steps: the warp yarns include first warp yarns and second warp yarns, and the first warp yarns and the second warp yarns with different warp yarn tensions are made uniform through a warping process Wound on the warp beam; using the single warp beam weaving process, it is woven into a bubble wrinkled lattice fabric gray cloth; through the post-dyeing and finishing process, the fabric not only forms a unique grid-like distributed bubble fabric, but also has a good texture The four-way elastic hand feeling, the invention solves the problem that single warp beam weaving bubble wrinkle cannot be weaved by innovating in the technology of warping, doubling, weaving, descouring and bleaching.