37results about How to "Reduce or avoid losses" patented technology

The invention relates to a method for preventing condensation and rustiness on a metal surface, which is characterized by comprising the following steps: 1. preparation of equipment: arranging a dew point instrument in a metal product storage, and respectively pasting a plurality of SMD thermal resistors on the surfaces of a plurality of metal products in different areas; 2. transmitting signals of a detected environmental dew point value Ta and the temperature T1-T2 on the surfaces of the metal products into a controller, firstly generating the lowest value TL in T1-T2 through the operation of the controller, and then carrying out subtraction of TL and Ta through the controller to acquire a difference value delta T; generating a first-level alarm signal when the delta T is lower than 3 DEG C, and indicating that condensation on the metal product surfaces may occur; and generating a second-level alarm signal when the delta T is lower than 1.5 DEG C, and indicating that condensation on the metal product surfaces is to occur. A user has to immediately take a ventilating or heating measure, otherwise the metal products can be corroded. The method can prevent the condensation on the metal surface.

The invention relates to a method for extracting RNA from extracellular vesicles. The method comprises the following steps: S1, separating and purifying the extracellular vesicles in a biological sample, and cracking the separated and purified extracellular vesicles; S2, adding an organic solvent to enable RNA to enter a water phase; S3, adding an alcohol organic solvent to the RNA containing water phase obtained in step S2; S4, adding a cation containing reagent for binding with negatively charged RNA; S5, adding a solution containing an inert coprecipitation reagent component; S6, centrifuging the solution obtained in step S5 to obtain RNA precipitate; S7: washing the precipitate and redissolving the precipitate to obtain an extracellular vesicle RNA solution. The method for extracting RNA has the advantages of short extraction time, low cost, high yield, high purity, good effect and the like, and facilitates subsequent tests.

The invention discloses a bionic stirring machine for injection grout, a hybrid power bionic stirring system and a slurrying method of the hybrid power bionic stirring system. The bionic stirring machine for injection grout comprises a stirring tank with a feed inlet and a slurry discharge pipe. The bottom face of the stirring tank is an inclined face which is inclined towards the slurry discharge pipe. The upper end of the stirring tank is fixedly provided with a power portion through a supporting frame. The power output end of the power portion is connected with a stirring shaft in the stirring tank. A stirring paddle is vertically or obliquely arranged on the stirring shaft. When the stirring paddle is obliquely arranged on the stirring shaft, the inclination direction of the stirring paddle is opposite to the rotation direction of the stirring shaft. The inner surface of the stirring tank, the inner surface of the feed inlet, the inner surface of the slurry discharge pipe and the stirring paddle are each provided with a plurality of bionic non-smooth units. The superficial area of faces, making contact with the bionic non-smooth units, of the stirring tank, the feed inlet and the slurry discharge pipe is 20-50% of the superficial area of the inner surfaces of the components, and the superficial area of the faces, making contact with the stirring paddle, of all the bionic non-smooth units on the stirring paddle is 20-60% of the superficial area of all surfaces of the stirring paddle.

The invention discloses a grape disease-resistant related gene VvPUB21, a plant expression vector thereof and application of the grape disease-resistant related gene VvPUB21 and the plant expression vector and belongs to the field of plant gene engineering. The grape disease-resistant related gene VvPUB21, the plant expression vector thereof and the application have the advantages that an open reading frame of the gene VvPUB21 is obtained through cloning, a plant over-expression vector containing the gene VvPUB21 is transferred to leaf blades of Arabidopsis thaliana and grapes, and expression quantity of the gene VvPUB21 is capable of remarkably enhancing high expression of disease resistance of genetically transformed Arabidopsis thaliana and the grape disease-resistant related gene, so that the ability of the gene VvPUB21 to play an important role in enhancement of plant disease resistance is proven, and studies on the gene VvPUB21 are of great significance to breeding new varieties of disease-resistant plants.

The invention relates to a special transportation-assisting trolley for cutting off single crystal silicon rods. The trolley comprises an underframe and a working platform, wherein a lifting device which is used for adjusting the height of the working platform is installed on the underframe, a pair of silicon rod supporting frames is fixed on two sides of the working platform, a silicon rod transmission is arranged between silicon rod supporting frames, and wheels are installed at the bottom of the underframe. By the aid of the technical scheme, the labor intensity of operators can be reduced greatly, losses of edge breakage during cutting of single crystal rods can be reduced or avoided, and particularly, losses caused by the fact that rods slip out of the hand and fall due to crystal rod collisions which often occur during transportation and cutting of large-diameter heavy-weight single crystal silicon rods can be avoided. The trolley has the advantages of being capable of greatly reducing the labor intensity of operators, reducing or avoiding losses of edge breakage during cutting of single crystal rods and particularly avoiding losses caused by the fact that rods slip out of the hand and fall due to crystal rod collisions which often occur during transportation and cutting of large-diameter heavy single crystal silicon rods.

The invention discloses an acceptance bill management method based on a block chain. The method enables the block chain technology to be applied to bank acceptance bill business, and solves problems that a conventional bank acceptance bill business is liable to be counterfeited, is slow in transaction, achieves the illegal transaction, is discontinuous in endorsement, and is large in resource consumption. Meanwhile, secure multi-party computing technology is applied to the bank acceptance bill business, privacy protection of account book information of all nodes is guaranteed, and the problemthat traditional bank acceptance bill business is poor in confidentiality is solved. Meanwhile, applicant information is obtained, applicant credit is verified, risk judgment is provided for the ticket holder, and unnecessary loss of the ticket holder is further reduced or prevented.

The invention discloses an intelligent antitheft hydrology and water resource remote measuring terminal machine which is composed of an antitheft detector, a safety antitheft host and an alarm module. The safety antitheft host is connected with the antitheft detector and the alarm module. The antitheft detector is composed of a power supply voltage early-warning detector, an equipment climbing early-warning detector, an equipment dismounting-prevention early-warning detector, motor-pumped well house/pump house wireless door magnetic early-warning detectors, an entrance stomp early-warning detector, and a monitoring box acousto-optic early-warning detector. The alarm module is composed of a scene alarm bell, a GSM short message alarm module, a telephone alarm module and a scene monitoring module. The safety antitheft host is composed of a safety antitheft CPU chip. The intelligent antitheft hydrology and water resource remote measuring terminal machine carries out early warning and alarming on monitoring equipment, power supply equipment and protection equipment, and the problems of scattered equipment, difficult protection and insufficient manpower are solved, so that the loss of the national property is reduced or avoided.

The invention discloses a plant essential oil extraction device and method. The plant essential oil extraction device is a vacuum circulation extraction system composed of an indirect heating vacuum evaporation unit, a condensing unit and a vacuum unit sequentially connected. The indirect heating vacuum evaporation unit has a closable chamber space respectively connected to an indirect heating source, a gas inlet and a gas outlet. The gas outlet is connected to the condensing unit. The gas inlet is connected to a vacuum pump of which a gas conveying path can be changed by a switching control structure. The gas conveying path changed by the switching control structure is arranged in an external environment direction or is communicated with the extraction structure closable chamber space. A vacuum gas pumping port of the vacuum pump is connected to a buffer structure in the condensing unit. The extraction device can realize circulation extraction of an essential oil-containing plant raw material under the condition of vacuum heating, effectively reduce an extraction heating temperature, effectively reduce or prevent the essential oil loss in the extraction process and improve plant essential oil product quality and an extraction yield.

The invention provides a cascade compression refrigeration system and refrigeration equipment with the cascade compression refrigeration system. The cascade compression refrigeration system comprises a high-temperature-stage refrigeration circulation loop and a low-temperature-stage refrigeration circulation loop, wherein the high-temperature-stage refrigeration circulation loop is used for circulating a first refrigerant; an evaporation part is arranged in the high-temperature-stage refrigeration circulation loop; the low-temperature-stage refrigeration circulation loop is used for circulating a second refrigerant; a low-temperature-stage compressor, a condensation part, a low-temperature-stage evaporation pipe and a heat exchange assembly are arranged in the low-temperature-stage refrigeration circulation loop; the heat exchange assembly comprises a heat releasing part and a heat absorption part; the heat releasing part is arranged between an exhaust port of the low-temperature-stage compressor and the condensation part; the heat absorption part is arranged between the low-temperature-stage evaporation pipe and a suction inlet of the low-temperature-stage compressor; the heat absorption part is used for enabling the second refrigerant flowing through the heat absorption part to absorb the heat of the second refrigerant flowing through the heat releasing part to increase the temperature, so that the air suction temperature of the low-temperature-stage compressor can be increased, and the heat load of the high-temperature-stage refrigeration circulation loop can be reduced.

The invention relates to an external combustion engine, in particular to a rotary external-combustion engine and a rotary external-combustion generator. The invention is characterized in that a working medium is heated to convectively circulate and generate power to drive rotation, and the circulation can be closed circulation. The rotary external-combustion generator utilizes heat absorbed by a heat pump as a heater to lead the working medium to be heated to convectively circulate and generate power to drive rotation and generate power. The thermodynamic cycle is mainly finished by heating and working of the heater, so that the heat loss in cooling and heat releasing can be reduced or avoided. In the invention, the structure is simple, the pollution is less, the efficiency can be obviously improved, the use of circulatory cooling water in a heat power plant can be greatly reduced, and the earth can be properly cooled if the surface water, the underground water, the rivers, the lakes, the seas, the air and the like are used as external heat sources.