Recombinant staphylokinase and their high expression engineered strain

Nano-level chelate pearl product, and its production process and use

Medicinal composition for treating dysmnesia and senile dementia

A medicinal composition for treating dysmnesia and senile dementia by nasal cavity application contains transcutaneous huperzine or its similar, or the pharmaceutically receptable salt of transcutaneous huperzine or its similar and pharmaceutically receptable carrier. Its advantages include convenient application, high biological utilization rate and low by-effect.

Synthesis of arabinonucleic acid and poly I:C

The present invention advances the conception of arabinonucleic acid and its artificial synthesis method and the significance of studying interferon inducer polymyocell.

Method for resourceful treatment of waste wind power blades

The invention relates to the field of solid waste treatment, and discloses a waste wind power blade resourceful treatment method which comprises the following steps: (1) cutting a waste wind power blade into blocks; (2) mixing the block with an inorganic acid solution for reaction, or mixing the block with a material A and metal salt for reaction, and then filtering; (3) soaking the filter residue obtained in the step (2) in an organic solvent, then filtering, collecting a material with the particle size of more than or equal to 1.5 mm, and calcining; and (4) soaking the calcined product obtained in the step (3) in fatty alcohol B, and then filtering. According to the method, recycling treatment of the waste wind turbine blade can be achieved, the glass fiber product with the excellent strength performance can be obtained through recycling, the shape of the recycled glass fiber can be well maintained, and the glass fiber bundle product with the wider follow-up application range can be obtained ...

Hydraulic control system of packing machine and square straw bundle packing machine

The invention relates to the field of hydraulic control, and provides a packer hydraulic control system and a straw square baler, the packer hydraulic control system comprises a main oil supply loop, the main oil supply loop comprises a first oil tank, a hydraulic pump and a control valve group, a first reversing valve in a pilot oil supply loop is connected with the hydraulic pump, and the first reversing valve is connected with a first oil tank and a first oil cylinder; a telescopic rod of the first oil cylinder is connected with a telescopic rod of the second oil cylinder, the second oil cylinder is connected with the second oil tank and the energy accumulator, and the energy accumulator and the second oil tank are connected with the control valve set. In order to overcome the defects that in the prior art, a hydraulic system of a packing machine is high in maintenance cost and often gets stuck, according to the hydraulic control system of the packing machine, a main oil supply loop ...

Method for preparing foam glass from waste glass fiber leaves and waste carbon fiber leaves

The invention relates to the field of solid waste treatment, and discloses a method for preparing foam glass from waste glass fiber leaves and waste carbon fiber leaves. The method comprises the following steps: (1) soaking waste glass fiber leaves in a salt solution, taking out, drying, and crushing until the particle size is less than or equal to 200 meshes to obtain a crushed material a; (2) soaking the waste carbon fiber leaves in an acid solution, taking out, drying, and crushing until the particle size is less than or equal to 400 meshes to obtain a crushed material b; (3) mixing the crushed material a, the crushed material b, a foaming agent and phosphate, and grinding to obtain a mixture; and (4) carrying out compression molding on the mixture, and then foaming. According to the method, the waste glass fiber leaves and the waste carbon fiber leaves can be subjected to resourceful treatment at the same time, and the foam glass with excellent performance can be prepared from the waste ...

Method for treating byproduct thiosulphate in organic amine doctor solution

The invention discloses a method for treating a byproduct thiosulphate in an organic amine doctor solution. The method comprises the following steps: introducing a fluid heat source into a thiosulphate-containing amine solution in a system, analyzing, transforming one part of thiosulphate into an elemental sulfur, and primarily reducing the concentration of the thiosulphate; sending the analyzed amine solution in which elemental sulfur particles are filtered through a filtering system to anion exchange resin by batches, carrying out thiosulphate removing treatment for a certain period of time, then mixing a defined amount of fresh doctor solution, filtering and processing through an anion exchange resins system to ensure that the concentration of the thiosulphate is reduced to be within a normal range. The method has the characteristics of simplicity and convenience and rapidness in operation, and is capable of performing online treatment on the doctor solution in the system without being ...

Multi -functional on -board excavation handling machinery

The utility model provides a pair of multi -functional on -board excavation handling machinery, including rail trucks, rotation mechanism, loading and unloading mechanism and control system, rail trucks by cart rail trucks with and the dolly rail trucks that sets up on cart rail trucks constitute, wherein cart rail trucks comprises the cart crossbeam and the connection pivot of installing on the cart crossbeam, connecting the pivot both ends and being provided with the connection pivot respectively, be provided with the cart respectively and walk capable speed reducer connecting the pivot both ends, dolly rail trucks walks road wheel and dolly by trolley frame, dolly and walks capable track and constitute, capable rail mounting is walked on the cart crossbeam to the dolly, and the dolly is walked the road wheel and is installed in the trolley frame below, is provided with the driver's cabin in trolley frame one side, rotation mechanism installs in the trolley frame top, and loading and ...

Nano-level chelate shell pearl layer product, and its preparing method and use

Glucokinase gene and its high expression engineering strain

Organic amine method desulfuration acid-manufacturing technology distributed control system

The invention discloses an organic amine method desulfuration acid-manufacturing technology distributed control system which comprises a signal collecting device, a controller, a main machine set and a power supply device. The controller is connected with the signal collecting device through an I/O module. The main machine set is connected with the controller. The power supply device provides power for the control system. The control system is of a multi-net-segment structure, each net segment of multiple segments corresponds to a domain address, and the domain addresses are independent. The organic amine method desulfuration acid-manufacturing technology distributed control system is used for controlling a desulfuration acid-manufacturing technology, a control method is simple, operation is efficient, cost is low, system expansion capability is high, subsystem working is independent, maintaining is convenient, and the fact that the system operates safely, reliably and continuously can ...

Glucokinase gene and its high expression engineering strain

The present invention discloses a kind of glucokinase (Sak) gene and its high expression engineering strain. It uses staphylococcus aureus chromosome DNA producing Sak as template, and passes throughthe process of PCR amplification treatment to obtain coded Sak gene. The amino acids coded at 34 th and 42 th locuses in said gene order are different from the reported Sak gene. The primer of specially-designed nucleotide order is adopted to make amplification to obtain recombined DNA fragment, and passes through purification, identification, enzymolysis and linkage, then transforming into host-cell to form the Sak high expression engineering strain. Said expression product possesses the action of plasminogen activator, so that it has the high hydrolytic activity for human fibre protein, therefore it can be used for curing embolic diseases of cardiac infarction, cerebral thrombosis and pulmonary thromboembolism.