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37results about How to "No cross" patented technology

Underground interchange

The invention discloses an underground interchange. The underground interchange comprises an east-west main tunnel and a north-south main tunnel which intersect with each other, wherein the east-west main tunnel is positioned on a lower side of the north-south main tunnel; two ends of the east-west main tunnel are taken as an east road junction and a west road junction respectively; two ends of the north-south main tunnel are taken as a south road junction and a north road junction; an east-to-west right-turn ramp and a north-to-east left-turn ramp are connected between the east road junction and the north road junction; a west-north connection tunnel is connected between the north road junction and the west road junction; a west-to-south right-turn ramp and a south-to-west left-turn ramp tunnel are connected between the west road junction and the south road junction; an east-west connection tunnel is connected between the south road junction and the east road junction. The underground interchange has the advantages of simple structure, need of small underground space area, short building period, low cost, easiness in ensuring a line index, prevention of traffic flow intersection, high vehicle passing efficiency, low energy consumption, and high security performance; the problem of interchange of underground tunnels can be solved well.
Owner:CHANGAN UNIV

Conical surface enveloping cone worm pair and manufacturing method thereof

The invention relates to a conical surface enveloping cone worm pair and a manufacturing method thereof, and belongs to the technical field of offset worm transmission. The conical surface envelopingcone worm pair comprises an enveloping cone worm and a cone worm wheel, the spiral surface of the enveloping conical worm is an expandable curved surface, the expandable curved surface is ground to beformed by the disc-shaped conical surface grinding wheel, and the enveloping cone worm is meshed with the bevel gear wheel; the conical surface enveloping cone worm pair is suitable for occasion of axis orthogonal staggered or axis non-orthogonal staggered with the transmission ratio of i 12 being greater than or equal to 10; and the manufacturing method of the conical surface enveloping cone worm pair comprises the following steps that 1, coordinate parameters of a to-be-manufactured enveloping cone worm are set, 2, the enveloping conical worm is manufactured, 3, the coordinate parameters ofthe to-be-manufactured are set, 4, a cone worm wheel is manufactured, and 5, the conical surface enveloping cone worm pair is assembled. The tooth surfaces of the conical surface enveloping cone wormpair are not prone to causing curvature interference, the number of the suitable worms is multiple, the range of the transmission ratio is wide, the distribution of the instantaneous contact lines isuniform, sparse and cross-free, heat dissipation and lubrication are facilitated, the bearing capacity is high, the transmission efficiency is high, and the service life is long.
Owner:NORTHEASTERN UNIV

Vomitoxin fluorescence immunochromatography test strip as well as preparation method and application thereof

The invention discloses a vomitoxin fluorescence immunochromatography test strip as well as a preparation method and application thereof. The test strip comprises a bottom plate, and a reaction film is attached to the bottom plate; one end of the reaction film covers a water absorption pad, and the other end sequentially covers a combination pad and a sample pad; a detection line and a quality control line are arranged on a non-covering surface of the reaction film along the transverse direction; a fluorescent probe of a vomitoxin monoclonal antibody marked by aggregation-induced emission fluorescent microspheres is sprayed on the combination pad; the detection line is coated with a vomitoxin complete antigen, and the quality control line is coated with a goat anti-mouse secondary antibody. According to the invention, the marking steps are greatly simplified, the marking efficiency is improved, the detection time is shortened, the physical adsorption stability is better than that of colloidal gold, and the detection accuracy and precision are high; the inter-batch difference is small, and the cost is low; in addition, the detection method is simple to operate, the whole detection process only needs 8 minutes, the detection limit is 100ppb, the quantitative detection range is 100ppb-5000ppb, and the sensitivity and specificity are high.
Owner:SOUTH CHINA AGRI UNIV

Visible protein chip for detecting poultry disease serum antibody, its preparation method and application

The invention discloses a visual protein chip for detecting serum antibody of new-castle disease virus of chickens, infectious bronchitis virus of chickens, avian influenza virus and infectious bursal disease virus of chickens , which is prepared by the following steps: purifying and diluting whole proteins of the four virus respectively; pointing samples of the positive control serum, the negative control serum and the four virus proteins onto a chip carrier respectively; drying, fixing, sealing and washing the samples to obtain the visual protein chip. The visual protein chip uses the purified whole proteins as capturing antigens to detect the virus-specific antibodies in chicken serum so as to simplify the preparation technology and reduce the production cost, and the visual protein chip has better specificity but no cross, has high reliability of results and has the advantages of quickness, simplicity and convenience, high sensitivity, good specificity and the like. When the serum is diluted by 6,400 times, the visual protein chip still can detect the antibodies, the sensitivity is 400 times of that of the prior AGP detection method. According to the detection to serum samples in-place, the detection rate of the visual protein chip is higher than the proir AGP method remarkably.
Owner:HARBIN VETERINARY RES INST CHINESE ACADEMY OF AGRI SCI

Four-resonance terahertz band metamaterial based on double ELC asymmetric coupling structure

A four-resonance terahertz band metamaterial based on a double ELC asymmetric coupling structure belongs to the technical field of electromagnetic wave full vector transmission control devices. The invention includes a substrate dielectric substrate and a metal structure layer arranged on the surface of the substrate dielectric substrate. There are M*N resonant units with the same structure periodically arranged on the metal structure layer. M and N are natural numbers and M≥2, N≥2. It is characterized in that each resonant unit has two openings and different lengths of metal arms. The resonator combination constitutes, and the resonator is determined according to the following conditions: in the simulation state of a single resonator, the first resonator has three resonance peaks, and the second resonator has two resonance peaks; In a state, the resonance unit has four resonance peaks; the resonance peaks are signal peaks with a transmittance lower than -15dB. The present invention utilizes micro-nano manufacturing technology for processing, and compared with realizing the terahertz reflective polarizer by ion etching, electro-optic crystal and other structures, the present invention has simple structure, small volume, low processing cost and high controllable precision.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

A kind of manufacturing method of cone enveloping cone worm pair

The invention relates to a conical surface enveloping cone worm pair and a manufacturing method thereof, and belongs to the technical field of offset worm transmission. The conical surface envelopingcone worm pair comprises an enveloping cone worm and a cone worm wheel, the spiral surface of the enveloping conical worm is an expandable curved surface, the expandable curved surface is ground to beformed by the disc-shaped conical surface grinding wheel, and the enveloping cone worm is meshed with the bevel gear wheel; the conical surface enveloping cone worm pair is suitable for occasion of axis orthogonal staggered or axis non-orthogonal staggered with the transmission ratio of i 12 being greater than or equal to 10; and the manufacturing method of the conical surface enveloping cone worm pair comprises the following steps that 1, coordinate parameters of a to-be-manufactured enveloping cone worm are set, 2, the enveloping conical worm is manufactured, 3, the coordinate parameters ofthe to-be-manufactured are set, 4, a cone worm wheel is manufactured, and 5, the conical surface enveloping cone worm pair is assembled. The tooth surfaces of the conical surface enveloping cone wormpair are not prone to causing curvature interference, the number of the suitable worms is multiple, the range of the transmission ratio is wide, the distribution of the instantaneous contact lines isuniform, sparse and cross-free, heat dissipation and lubrication are facilitated, the bearing capacity is high, the transmission efficiency is high, and the service life is long.
Owner:NORTHEASTERN UNIV LIAONING
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