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128results about How to "Reduce weight ratio" patented technology

Production process of E-TPU (expanded thermoplastic polyurethane) shoe material

The invention relates to a production process of an E-TPU (expanded thermoplastic polyurethane) shoe material. The production process of the E-TPU shoe material comprises the steps implemented in sequence as follows: a, material preparation: 75-92 parts of TPU foamed particles, 5.9-19 parts of glue A, 0.9-4.8 parts of glue B and 0.38-1.5 parts of an accelerator are prepared by weight; b, addition of the glue A: the TPU foamed particles and the glue A are stirred uniformly; c, addition of the glue B: the glue B is added after the materials in the step b are mixed uniformly, and the materials are stirred uniformly; d, addition of the accelerator: the accelerator is added after the materials in the step c are mixed uniformly, the materials are mixed uniformly, and the mixture is injected into a die cavity; e, foaming: the die cavity is moved into an oven, foaming molding is performed at 50-70 DEG C for 2-3 min, and the molded shoe material can be obtained. The TPU particles can account for 90%-92% by weight of the shoe material, the weight reduction limit of the current shoe material is reached, and the E-TPU shoe material has the characteristics of being ultralight, ultrahigh in elasticity, more environment-friendly, low in cost and capable of performing massaging.
Owner:陈茂双

Hybrid power tail sitting type vertical takeoff and landing long-endurance unmanned aerial vehicle and flight control method thereof

The invention provides a hybrid power tail sitting type vertical takeoff and landing long-endurance unmanned aerial vehicle and a flight control method thereof. The unmanned aerial vehicle comprises a fuselage, wings, a main driving motor, propellers, a piston power ducted propeller and tail wings mounted on a duct. According to the invention, two sets of power systems, namely a motor and a piston engine, are adopted; in a vertical takeoff and landing stage which is short in time and requires large power, the motor serves as driving power, the advantage of high power-weight ratio of the motor can be fully exerted, and thus the weight of the power systems is reduced; in a cruising flight stage, the tail piston engine and the ducted propeller system driven by the tail piston engine drive the unmanned aerial vehicle to fly forward, and the piston power and the ducted propeller system can be selected and designed according to the optimal cruising state without considering the vertical takeoff and landing state, so that the fuel consumption rate of the cruising state can be effectively reduced; in combination with high-aspect-ratio wings, long-time flight of the unmanned aerial vehicle can be ensured; and meanwhile, because the weight of the power systems is reduced, the empty weight ratio of the unmanned aerial vehicle can be reduced, and the loading capacity of the unmanned aerial vehicle can be effectively improved.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Preparation process for copper foil for lithium ion battery current collector

The invention relates to an electrochemical coating film and particularly relates to a preparation process for a copper foil for a lithium ion battery current collector. The preparation method comprises the steps of: firstly, carrying out local insulating treatment on the surface of an electro-deposition roller of an electrolytic copper foil to form a lattice point shaped pattern; then, carrying out an electro-deposition process for the electrolytic copper foil, wherein the copper foil obtained by deposition is a mesh-shaped foil sheet with the lattice point pattern consistent with that of the electrical insulating region. According to the preparation process for the copper foil for the lithium ion battery current collector, the mesh-hole-shaped copper foil for the cathode current collector of the lithium ion battery is prepared, the weight ratio of the copper foil in the cathode piece in the lithium ion battery can be reduced, the unit weight capacity of the cell is improved, and the preparation process can be compatible with the copper foil production device used in the existing lithium ion battery production; and the preparation process can be achieved only by improving the existing copper foil production device part, namely the electro-deposition roller.
Owner:IRICO

Preparation method and application of bacteria-enzyme synergistic fermented rice bran meal for improving growth performance of growing and fattening pigs

The invention discloses a preparation method and application of bacteria-enzyme synergistic fermented rice bran meal for improving growth performance of growing and fattening pigs. The method comprises: (1) preparing a strain activation culture medium; (2) strain activation and fermentation seed liquid preparation: inoculating bacillus subtilis, saccharomyces cerevisiae and lactobacillus plantaruminto the activation culture medium for activating, performing mixing, adding acid protease and phytase, and performing uniform mixing to obtain a fermentation seed liquid; and (3) a two-step fermentation process: premixing rice bran meal and a soybean hull raw material in a ratio of 4:1, adding the fermentation seed liquid obtained in the step (2) according to 5-10% of the premixed raw materials,introducing warm water to make the total moisture account for 35-40% of the total mass of the fermentation system, performing uniform stirring, transferring obtained mixture into a fermentation tank,performing fermentation for 24 hours, filling an anaerobic breathing bag, and performing fermentation for 48 hours to obtain a fermented feed. The fermented feed replaces protein raw materials in daily ration of the fattening pigs with 10% of equal nitrogen, the feed intake and daily gain of the fattening pigs can be remarkably improved, the feed conversion ratio is reduced, the nutrient digestibility of the fattening pigs is improved, and the serum oxidation resistance of the fattening pigs is enhanced.
Owner:ZHEJIANG UNIV

Luggage

An article of luggage comprises a suitcase (1) having a substantially cuboid fabric structure (10) defining an enclosable storage volume (20), the fabric structure (10) supported by frame (100). Also mounted upon the supporting frame (100) are a set of wheels (150) and an upward and rearward projecting towing handle (140). The suitcase (1) is stable in an upright position and a user may incline the suitcase (1) rearward from the upright position to wheel the suitcase along. In view of the inclination of the handle (140), the suitcase (1) need not be orientated far from the vertical when being wheeled by a user. As such, the user need not support a significant proportion of the weight and the suitcase (1) is less readily upset by an uneven surface. The handle (140) may be fixed but is preferably telescopic allowing it to be retracted and thus allowing suitcase (1) to be packed more easily in a confined space. The towing handle can be arranged inside the storage volume (20) via a cover (21) that can be tightly covered again. The cover (21) includes almost a whole front portion (15) and about a half of forward portion of a side surface (13). The supporting frame (100) comprises a plurality of stretching members connected together, so that a support pedestal (110) and the top of a support (120) are separated by a diagonal line length member (130) connected between the front portion of the pedestal (110) and the rear portion of the top (120). The handle (140) is arranged on the diagonal line length member (130). The wheels (150) are arranged on the support pedestal (110).
Owner:英国优品国际采购公司

Compression and release device based on memory alloy

The invention relates to the technical field of spaceflight launching satellites, and concretely relates to a compression and release device based on memory alloy. The device comprises a shell, a sliding block, a driving block, a split nut, a driving spring cover, a driving spring, a connecting rod mechanism, a small ball control mechanism and a driving mechanism, wherein the sliding block is arranged in the shell, the driving spring and the driving spring cover are arranged in the containing cavity of the sliding block from bottom to top, the split nut is in threaded connection with the driving spring cover, the split nut is connected with the sliding block through the connecting rod mechanism, and the connecting rod mechanism pulls the split nut when the sliding block moves downwards, so that locking of the driving spring cover is relieved; the driving mechanism, the driving block and the small ball control mechanism are arranged at the bottom of the shell from bottom to top, and the small ball control mechanism is arranged on the outer side of the lower end of the sliding block and used for limiting axial movement of the sliding block; and the driving mechanism is used for driving the driving block to rotate to a preset position. According to the invention, the task requirement of unfolding the satellite antenna is met, and the reliability and safety of compressing and releasing the satellite antenna are improved.
Owner:沈阳中科新宇空间智能装备有限公司 +1

Bacillus amyloliquefaciens probiotics capable of producing phytase and preparation as well as preparation method of probiotics

The invention discloses bacillus amyloliquefaciens probiotics capable of producing phytase, and a preparation as well as a preparation method of the bacillus amyloliquefaciens probiotics. The gene GenBank accession number of the rRNA (Ribosomal Ribonucleic Acid) gene sequence of the bacillus amyloliquefaciens T6, 16S is JX081245. According to the method, a shallow tray fermentation culture method and a submerged fermentation culture method are applied to strain culture, and the specific steps include strain storage by glycerinum, strain activation, strain treatment in a shake flask, strain culture, load of the strain to a carrier, drying, inspection, and packaging to obtain a finished product. The novel probiotics preparation is prepared by using the bacillus amyloliquefaciens strain capable of producing the phytase, which is heat resistant, dryness resistant, acid resistant, alkali resistant and long in storage period, is stable in quality, and can be used for keeping intestinal microecological balance of livestock and poultry, ensuring that the growth and development of an animal in an ideal state reaches the maximum capacity of the animal, improving the feed digestion rate of the animal, improving the disease resistant capacity of the animal, promoting animal health, reducing the calcium phosphate addition amount in daily ration, reducing the excretion amount of the calcium phosphate in excrements of livestock and poultry, protecting environment and achieving the proposes of energy conservation and emission reduction.
Owner:四川伯乐福生物科技有限公司
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