79results about How to "Strong controllability" patented technology

Method for realizing anti-interference large visual field distance gating vehicle night vision

ActiveCN101722888AStrong controllabilitySolve the near-far effect
The invention discloses a method for realizing anti-interference large visual field distance gating vehicle night vision, which is realized on the basis of a time slicing technology and a frequency agility technology of a pulse laser. A working frequency point of the pulse laser is in a state of pseudo random variation and satisfies that pulse lasers with a certain pulse interval are emitted from the pulse laser, and the pulse lasers are spread forwards; a night vision working region is divided into n working sections, n is a natural number, scanning of slicing of different working sections is realized by variation of delay time between a gating pulse and a laser pulse by adopting a working mode of working section layer weighing, layer samples are collected according to a set exposure weight value gamma, a layer frame is obtained by carrying out screening, transverse noise reduction and fusion on the layer samples, and then a visual frame picture for assisting a driver to safely drive through treatments including longitudinal noise reduction and fusion to the layer frame is obtained. By utilizing the invention, the problems of near-far effect, noise accumulation and interference among different night vision systems during working in a large visual field are solved.

Segmented anchoring and grouting anchor rod device capable of achieving automatic clamping and anchoring method thereof

ActiveCN105257328AStrong controllabilityEnhance self-stable bearing capacity
The invention provides a segmented anchoring and grouting anchor rod device capable of achieving automatic clamping and an anchoring method thereof. According to the device, a grouting anchor rod, a first connecting piece, a cylinder, a second connecting piece and a resin anchor rod are sequentially connected into a rod body through threads; a piston and a piston rod are arranged in the cylinder and are fixedly connected; the end, connected with the second connecting piece, of the cylinder is provided with an annular groove, a plurality of supports are arranged at the end of the cylinder, one end of a movable connection rod is connected with the end of the piston rod, the other end of the movable connection rod penetrates through the annular groove of the cylinder and is hinged to a clamping wing, and the end of the clamping wing is hinged to the supports. According to the device and the method, resin cartridge anchoring and grouting anchoring are fully used, and the clamping wing is added and deeply embedded into the anchor hole wall, so that anchoring force is greatly enhanced. The device and method are suitable for unstable roadways with various mine soft rock crushing, can greatly improve anchoring capacity of a whole anchor rod, effectively improve self-stability of a roadway surrounding rock body, and have the advantages of being good in end anchoring effect, high in anchoring efficiency, convenient to install and the like.

Preparation method and applications of modified ZSM-5 molecular sieve for high-selective preparation of propylene from methanol and dimethyl ether

The invention provides a preparation method and applications of modified ZSM-5 molecular sieve for high-elective preparation of propylene from methanol and dimethyl ether, and mainly solves the problem of bad stability, which is caused by low propylene selectivity and easy carbon deposition, of ZSM-5 molecular sieve in the high-selective preparation of propylene from methanol and dimethyl ether. The preparation method comprises following steps: burning ZSM-5 molecular sieve original powder with a silicon/aluminum ratio in the range of 20 to 1000 and an average particle size in the range of 60 to 5000 nanometers to remove the organic template agent, then exchanging for 3 to 10 hours at the temperature of 20 to 100 DEG C in an ammonium chloride solution or an ammonium nitrate solution with a concentration of 0.1 to 5.0 mol/L, processing the obtained ammonium molecular sieves with different concentration (0.1 to 5.0 mol/L) ammonium fluosilicate solutions at the temperature of 20 to 100 DEG C for 1 to 48 hours, then fully washing with deionized water, filtering, drying for 12 hours at the temperature of 30 to 150 DEG C, and finally burning for 3 to 10 hours at the temperature of 300 to 550 DEG C so as to obtain series modified HZSM-5 molecular sieves. The processing method of ZSM-5 molecular sieve is simple and easy to operate. The modified HZSM-5 molecular sieve catalyst has high propylene selectivity and stability in the selective preparation of propylene from methanol and dimethyl ether.
Owner:巩雁军 +1

Ship swaying platform for wind tunnel test

The invention discloses a ship swaying platform for wind tunnel test. The ship swaying platform comprises a moving mechanism, a follow-up mechanism, a moving platform, a base and a motion controller;the moving mechanism and the follow-up mechanism are arranged between the moving platform and the base, the motion controller and the motion mechanism are connected through a cable to control the motion mechanism to perform controllable telescopic motion; and a main control computer of a wind tunnel transmits a posture control signal of a ship model to the motion controller through the cable, andthe motion controller controls a RPR component I, a RPR component II and a RPR component III to perform telescopic motion. The ship swaying platform can be used for simulating the motion of an aerialcarrier ship in the wind tunnel to form an air flow field above and around a flight deck of the aerial carrier ship, and conditions are provided for the measurement of the dynamic ship air flow fieldin the wind tunnel, the research of the adaptability of warships of the aerial carrier ship and a shipboard aircraft and the like. The different attitudes of the ship model in the wind tunnel flow field can be adjusted, and conditions are provided for the aerodynamic measurement of the ship model under different attitudes and the measurement of the surrounding airflow field.

Composite-photocatalyst-supported silicon material preparation method

The invention discloses a composite-photocatalyst-supported silicon material preparation method, which specifically comprises: (1) pre-treating raw materials; (2) loading a titanium dioxide carrier; (3) preparing an inner layer solution; (4) preparing an outer layer solution; (5) carrying out primary impregnation; and (6) carrying out secondary impregnation. According to the present invention, the silicon material is subjected to the heat treatment by adding the strong alkali solution, such that the controllability is strong, and the too low surface energy of the silicon material is easily increased; by using the Ti3+ in-situ assisted reduction method, the noble metal nanoparticles are uniformly distributed on the carrier titanium dioxide surface, such that the loading distribution is uniform, the interface binding is solid, and the photo-oxidation reaction is efficiently and selectively performed; the microwave radiation treatment is performed in the inner solution, such that the conditions are mild, the reaction rate is rapid, and the yield is high; and the carbon atoms of the graphene adopt the sp2 hybridization linkage, such that the good adsorption ability to pollutants is provided, the obtained silicon material loads the graphene, the high structural stability and the thermal stability are provided, and the adsorption capacity of the material under the mild condition is effectively improved.
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