69results about How to "Control activity" patented technology

The invention discloses a lead-cadmium compound conditioner for rice field soil as well as preparation and application methods of the lead-cadmium compound conditioner. The conditioner is composed of the raw materials in mass fractions: 30-50% of calcium carbonate, 5-10% of hydroxyapatite, 20-30% of sepiolite and 20-30% of zeolite; the preparation of the conditioner comprises the following steps of: weighing various raw materials according to the mass fractions of the components of the lead-cadmium compound conditioner; continuously stirring the various raw materials in a stirring device for at least 30 min, and thoroughly stirring and evenly mixing all the materials; and the method of application of the conditioner comprises the following steps of: (1) analyzing the total quantity of lead and cadmium in the rice field and the content of lead and cadmium in exchange state; (2) determining the pollution level of the rice field soil by using an evaluation model; (3) applying the lead-cadmium compound conditioner according to the lead-cadmium pollution level in the rice field, and applying the lead-cadmium compound conditioner to the slightly polluted rice field at 100-150 kg / mu, to the mildly polluted rice field by 150-300 kg / mu and to medium-polluted rice field at 300-600 kg / mu, and balancing and stabilizing for 10-15 days; and (4) analyzing and measuring the content of lead and cadmium in exchange state in the rice field, and if the fixed rate is lower than 90%, additionally applying the conditioner at 100-150 kg / mu.

The invention discloses a bionic manipulator with a complete self-power source, which includes a coupling rod mechanism, a cam mechanism and a gear mechanism. The coupling rod mechanism includes a first knuckle, a second knuckle, a third knuckle and a third knuckle of four fingers. A finger rod, a second finger rod, a connecting rod, a thumb and a hinge, the first and second knuckles are connected by bolts, the second knuckle is connected with the third phalanx through the first finger rod, and the third finger The knuckle is connected with the connecting rod through the second finger rod; the knuckles of the thumb are connected by bolts, and the knuckles of the root are connected with the palm through hinges and bolts. The present invention belongs to a kind of upper limb prosthesis with complete self-power source, and most of its parts can be manufactured by 3D printers, which greatly reduces the manufacturing cost and the market price thereof.