186results about How to "Don't waste energy" patented technology

Apparatus for cooking food has a lid (18), a base (12) and a container (14) removable from the base (12) and suitable to contain food. A first heating unit (16a) associated with the base (12) has a plurality of electric heating elements (22) configured to achieve a specific heating surface to heat the container (14) and to be selectively activateable depending on the sizes and position of the container (14) on said base (12). The first heating unit (16a) has a control and command unit (20) associated with the heating elements (22) and sensitive elements (28) configured to recognize the position, size and shape of the container (14) and is configured to selectively command the heating elements (22) on the basis of the recognition by the sensitive elements (28) of which heating elements (22) are activated or can be activated in order to heat the container (14) directly.

A puncture device 21 comprises capacitors 24 and 33 to which voltage is applied, a laser puncture unit 25 to which the output of these capacitors 24 and 33 is supplied, a trigger circuit 30 that applies a trigger voltage to the laser puncture unit 25, and a controller 35 that controls this trigger circuit 30. The puncture device 21 further comprises switches 29 and 32 that switch the connection of the capacitors 24 and 33. The switches 29 and 32 are controlled by the controller 35 so as to carry out a first puncture, which is performed with the capacitors 24 and 33 connected in parallel, and a second puncture, which is performed with the capacitors 24 and 33 connected in series.

A regenerative hydraulic pump that allows for efficient operation of a hydraulic system under high pressure / low flow conditions that comprises a crankshaft providing a rotating inertial mass, and a regenerative hydraulic pump cylinder that comprises a pump cylinder housing, a pump piston mechanically connected to the crankshaft; and a compliant pressure chamber that stores a portion of the energy extracted by the pump piston during a pumping stroke for release back to the pump piston and to the crankshaft during a regenerative back stroke.

In order to melt snow and prevent freezing without consuming energy wastefully and to monitor a road surface state remotely, a road surface sensor includes: a rotating stand provided so as to be reciprocatingly rotatable upward on the road surface; a snow-melting / freezing heat quantity measurement dummy road surface having an electric heater buried therein and to use as a reference road surface for heat quantity measurement to derive a melting heat quantity for snow falling on the surface and a heat quantity required for freezing prevention; a reference light irradiating / reflected light receiving device that is attached so as to be rotatable with the rotating stand; a space reflected light receiving device; a non-contact road temperature measuring device; a non-contact snow cover depth measuring device; a road surface image pickup device; and a moisture sensor. The reference light irradiating / reflected light receiving device includes a reference light irradiating device for irradiating reference light and a reflected light receiving device for receiving reflected light of the reference light from the road surface, and the reflected light receiving device separates and receives only reflected light of the reference light out of the reflected light from the road surface.

The invention discloses a method for monitoring and controlling environments of a public place based on Zigbee, which comprises the following steps of: collecting environmental parameters in a public place by using a wireless sensor network, sending the acquired environmental parameters to a controller, and carrying out fuzzy modeling and chaotic modeling on the acquired environmental parameters by the controller; establishing a fuzzy neural network according to an established environmental parameter model, and carrying out real-time control on a working apparatus by utilizing the fuzzy neural network; and carrying long-term control on the working apparatus in the public place by utilizing a chaotic perturbation control method. In the invention, the fuzzy neural network and the chaotic perturbation control method are combined together, and the working apparatus is controlled according to season change of natural conditions, such as sunshine, temperature, and the like at the site of the public place so as to achieve the purposes of energy saving and humanization. Furthermore, the wireless sensor network adopts a wireless sensor network based on Zigbee, has the characteristics of an ad hoc network and low power consumption and avoids the arrangement difficulty of a collection point when the traditional cable is wired.

The invention discloses a current source type PWM (Pulse-Width Modulation) rectifier and a grid-connected control method based on a virtual resistor. A grid-connected rectifier consists of commercial power, an alternating-current filtering inductor, an alternating-current filtering capacitor, a three-phase current source type rectifier, a direct-current inductor, a direct-current capacitor and a digital controller. Sampled alternating-current filtering capacitance voltage is transmitted to a microprocessor to perform digital phase locking, and after phase locking is finished, the alternating-current filtering capacitance voltage and phase are transmitted to an alternating-current controller. The alternating-current controller consists of a coordinate converter, a virtual impedance regulator and a divider. The coordinate converter converts the three-phase alternating-current filtering capacitance voltage into the voltage under a two-phase static coordinate system, after the voltage is regulated by the virtual resistance regulator, current passing through a virtual resistor is obtained, control amount of the alternating-current side is obtained through the divider, the control amount is superposed on the control amount on the direct-current side, a driving signal obtained through a PWM generator is transmitted to a driving plate, and after the signal is amplified by the driving plate, the connection and disconnection of a three-phase current source type rectifying bridge switch are controlled. The control effect of the virtual resistance regulator in the alternating-current controller is equivalent to the control effect that a resistor is directly connected in parallel on an alternating-current capacitor, so that oscillation can be effectively damped, loss is not caused, and ultraharmonics in grid-connected current can be effectively inhibited. The rectifier is high in dynamic response speed, stable in dynamic response and high in power factor, the total harmonic distortion rate of the grid-connected current is low, and the method can be applied to an uninterruptible power supply.

A cordless handheld steamer comprising an interior chamber containing a steam generation unit and a water reservoir. The water reservoir generally encompasses the steam generation unit and the steam generation unit contains a heating element. A precise temperature control unit monitors the heating element's temperature to maintain an optimum steam producing temperature without overheating. The heating element is powered only by an on-board battery pack. A user determined amount of water is pumped from the water reservoir to the flash boiler chamber where the water is converted to steam and the steam travels through a plenum to a target area.

The invention relates to a power battery balance charging method and a power battery balancing circuit. The circuit comprises a voltage detection, analysis and comparison circuit, a balance switching circuit, an internal constant current source circuit and a power supply management and protection chip, wherein the voltage detection, analysis and comparison circuit is used to detect the voltage of each battery unit in a battery pack in real time and to respectively transmit detection results to the balance switching circuit and the power supply management and protection chip; the balance switching circuit makes a comparison and a judgment to all voltage values to find the battery unit with the voltage which is lower than the preset voltage value and is the lowest among the voltage of all battery units in the battery pack, a compensation battery is connected with the battery unit through the switching circuit to compensate the battery unit with electricity, and the electricity compensation is stopped when the voltage of the battery unit reaches the average voltage or the highest battery voltage; and by parity of reasoning, other battery units are charged. The invention has the advantages that the compensated electricity of the battery can be accurately controlled; the compensation current is large and the efficiency is high; and the compensation conditions can be flexibly adjusted.

The invention relates to the technical field of test equipment, and particularly relates to a lifting type cold-hot impact tester. A control panel is arranged on a rack body, a refrigerating box body and a heating box body are arranged in the rack body and are communicated through a through hole, a lifting testing frame is arranged in the through hole of the refrigerating box body and the heating box body, an upper sealing plate and a lower sealing plate are arranged at two ends of the lifting testing frame, the middle of the lifting testing frame is of a net-shaped structure, the upper end of the lifting testing frame is connected with a steam cylinder by a pulley through a rope, the refrigerating box body is connected with a refrigerating device arranged in the rack body through a pipeline, a heating device is arranged in the heating box body, airflow circulating paths driven by an air blower are respectively arranged in the refrigerating box body and the heating box body, and a sealing door is arranged on the rack body. According to the lifting type cold-hot impact tester, the design is scientific, the energy is saved, is environmental protection is realized, and the testing is accurate because a testing environment is close to an environment temperature; meanwhile, the service life of the cold-hot impact tester is greatly prolonged.

The invention discloses a wet sewage sludge combustion furnace which comprises a machine frame, wherein the machine frame is provided with a barrel type furnace body in an inclining manner, and a riding wheel device and a furnace body revolution driving device are arranged between the barrel type furnace body and the machine frame; the machine frame is fixedly provided with a sludge granulation spiral conveyer, and a discharge end of the sludge granulation spiral conveyer stretches into the upper part of the interior of the barrel type furnace body; and the upper end of the sludge granulation spiral conveyer is provided with a steam exhausting device and a granulation discharge hole. The wet sewage sludge combustion furnace provided by the invention can concentrate the sludge in a sludge transport process, the subarid sludge is extruded and granulated through the granulation discharge hole, the sludge grains are driven by the revolving barrel type furnace body to continually roll and dry so as to move to a hearth position, and turn into flammable grains at the heart position, and the combustion of the sludgy is realized. The wet sewage sludge combustion furnace provided by the invention has the advantages that the structure is compact, the sludge concentration drying efficiency is high, an energy source is not wasted, the sludge incineration is thorough, the technical bottle neck of sludge incineration is fully solved, and the wet sewage sludge combustion furnace has great economic and social benefits and popularization and application values.

The invention discloses a mineral roasting reduction device. The device comprises a feeding zone, a drying preheating zone, a roasting oxidation reaction zone, a pressure-regulating zone, a reduction reaction zone, a discharging zone and a water-sealing cooling zone, which are arranged from the top down and communicated with one another, wherein the feeding zone is provided with an automatic sealing device; the drying preheating zone is provided with a directional pressurizing device for vacuum-pumping; the roasting oxidation reaction zone is provided with an incendiary agent adding device; the pressure-regulating zone is provided with a plurality of pressure-regulating air doors; the reduction reaction zone is provided with a reducing agent adding device. The mineral roasting reduction device is provided with the directional pressurizing device, so that negative pressure can be generated in the inner part of the device; molecular flows of both an incendiary agent and an reducing agent are in uplink, while mineral is in downlink, so that a convection current movement is formed to ensure conversion affinity of the solid phase and the gas phase; in the device, the mineral sequentially is subjected to drying, preheating, heating, resolving, reducing, water quenching, cooling and discharging from the top down, and all processes are performed in an air-free state thoroughly to complete roasting reaction.

The invention discloses a combustion treatment method of urban sludge, which is provided for overcoming the disadvantages of the existing incineration treatment of urban sludge, such as low burn-out rate, poor treatment of urban sludge, high energy consumption, and long treatment time. The pump pressurizes the ignition fuel into the furnace and ignites it in an atomized state; stirs and mixes the municipal sludge and finished coal-water slurry in a certain proportion to form a liquid fuel, pressurizes it with a slurry pump and injects it into the furnace through the burner, and sends the compressed air to The nozzle makes the liquid fuel in an atomized suspension state and is ignited by the ignition fuel, and the urban sludge can be disposed of. Using the above-mentioned process to treat municipal sludge does not require dehydration and drying treatment, and does not waste energy; liquid fuel burns fully and quickly in the state of atomization and suspension, with less residue and can be used as building materials, so municipal sludge can be thoroughly processed Clean, recycle the heat, turn waste into treasure, and dispose of the largest amount of urban sludge with the least amount of finished coal-water slurry fuel.

An energy-saving magnetic bearing device with no bias current for making the relation between the excitation current and the magnetic force of the electromagnet linear is provided. In a magnetic bearing device for supporting a rotor 1 serving as the magnetic piece in a levitating state allowing free rotation at a specified position by the magnetic force of a pair of electromagnets 2, 3, the electromagnets 2, 3 are constituted to interpose the rotor 1 and face each other. A driver 204 is a PWM (pulse width modulation) type driver for controlling the excitation current in the electromagnets 2, 3 by modulating the pulse width of a voltage driven at a specified carrier frequency fc, and includes a resonator means for electrically resonating at a frequency equal to the carrier frequency fc. When an excitation current flows in either one of the pair of opposing electromagnets 2, 3, then the other magnet is regulated so that the DC component in the electromagnet excitation current is zero, and a voltage is applied via the resonator means to the electromagnet whose DC component in the excitation current is discharged to zero.

The invention discloses a heat radiating method and mechanism of an electric automobile battery box. The heat radiating method comprises the following steps: introducing natural air outside an automobile to radiate heat when the temperature in the battery box exceeds the preset temperature T2; radiating heat by extracting air-conditioning cold air in the automobile when the temperature in the battery box exceeds the preset temperature T4, wherein T4>T2; and stopping extracting the air-conditioning cold air in the automobile when the air-conditioning cold air is subjected to heat radiation, so that the temperature decreases and does not exceed the preset temperature T3 which is lower than T4 and higher than T2, and introducing natural air outside the automobile to radiate heat. The heat radiation method can play a better heat radiation effect on the battery box, does not waste energy, and meanwhile does not affect the environment in the automobile.

The invention discloses a method for determining the carrier frequency of an inverter air conditioner and the inverter air conditioner. The method comprises the following steps: determining the recommended carrier frequency range (fcmin, fcmax) of a component of a frequency converter; determining the maximum energy efficiency carrier frequency fci corresponding to the running frequency fi of an air conditioner performance testing point compressor according to the range (fcmin, fcmax); determining the lowest noise and maximum energy efficiency carrier frequencies from fc1 and fc2 to fcn respectively corresponding to the running frequencies from f1 and f2 to fn according to the recommended carrier frequency range (fcmin, fcmax) and the running frequencies from f1 and f2 to fn at which the selected compressor possibly run, wherein if the running frequency fr of the compressor is not larger than fi, the carrier frequency is fci; if the fr is equal to f1, the carrier frequency is fc1; if the fr is larger than fi and smaller than f1, the carrier frequency is linearly varied between the fci and fc1, and so on. The method for determining the carrier frequency of the inverter air conditioner, provided by the invention take into account of two special properties, namely the energy efficiency and noise, so that the inverter air conditioner can give the uttermost play to the energy efficiency during low frequency running, and can guarantee low noise during high-frequency running.

In order to melt snow and prevent freezing without consuming energy wastefully and to monitor a road surface state remotely, a road surface sensor includes: a rotating stand provided so as to be reciprocatingly rotatable upward on the road surface; a snow-melting / freezing heat quantity measurement dummy road surface having an electric heater buried therein and to use as a reference road surface for heat quantity measurement to derive a melting heat quantity for snow falling on the surface and a heat quantity required for freezing prevention; a reference light irradiating / reflected light receiving device that is attached so as to be rotatable with the rotating stand; a space reflected light receiving device; a non-contact road temperature measuring device; a non-contact snow cover depth measuring device; a road surface image pickup device; and a moisture sensor. The reference light irradiating / reflected light receiving device includes a reference light irradiating device for irradiating reference light and a reflected light receiving device for receiving reflected light of the reference light from the road surface, and the reflected light receiving device separates and receives only reflected light of the reference light out of the reflected light from the road surface.

The invention discloses a defrosting method of a heat pump air conditioner. The method comprises the following steps: adopting bypass tube bypass compressor containing a bypass solenoid valve and a front tube bank of an outdoor heat exchanger, and connecting the solenoid valve and a capillary tube between the front tube bank of the outdoor heat exchanger and a rear tube bank of the outdoor heat exchanger in parallel; the defrosting process comprises the following steps: closing the solenoid valve; opening the bypass solenoid valve; and causing the refrigerant to sequentially flow through the compressor, a four-way reversing valve, the bypass solenoid valve, the front tube bank of the outdoor heat exchanger, the capillary tube and the rear tube bank of the outdoor heat exchanger, and then flow through the four-way reversing valve and return to the compressor; during the flow process, taking the front tube bank of the outdoor heat exchanger as a condenser and the rear tube bank of the outdoor heat exchanger as an evaporator, and melting a frost layer on the surface of the front tube bank of the outdoor heat exchanger; and / or changing the conducting direction of the reversing valve to melt the frost layer on the surface of the rear tube bank of the outdoor heat exchanger. The invention also provides the heat pump air conditioner. The method can efficiently, quickly and safely remove the frost layer on the surface of the outdoor heat exchanger.

The invention discloses a lilium regale inducible promoter LrP1 and application thereof. A nucleotide sequence of the LrP1 is as shown in SEQ ID NO: 1. According to the lilium regale inducible promoter LrP1 disclosed by the invention, the technical research related to molecular biology and gene engineering verifies that the lilium regale inducible promoter LrP1 is in response to several plant hormones and biotic and abiotic stress; expression cassettes constructed by connecting the lilium regale inducible promoter LrP1 disclosed by the invention and beta-glucuronidase genes are shifted into tobacco for expression, the activity of glucuronidase of transgene tobacco can be quantitatively detected through a fluorescence method, and a result shows that the activity of the glucuronidase is remarkably enhanced after the transgene tobacco is treated by gibberellin, ethylene, abscisic acid, NaCl, damage factors, fusarium oxysporum, sclerotinia sclerotiorum and botrytis cinerea; therefore, the lilium regale inducible promoter LrP1 is induced by several hormones and biotic and abiotic stress factors, so that the lilium regale inducible promoter LrP1 can be used for plant stress-resistant gene engineering.

The invention discloses a pseudo-ginseng inducible promoter R1 and application thereof, the nucleotide sequence of R1 is shown as SEQ ID NO: 1, and molecular biology and genetic engineering related technical researches prove that the pseudo-ginseng promoter R1 responds to several plant hormones, biological stress and abiotic stress; a fusion expression cassette constructed by the panax notoginseng promoter R1 and the beta-glucuronidase gene is transferred into tobacco for expression, and the activity of the glucuronidase of the transgenic tobacco is quantitatively detected through a fluorescence method. The result shows that after the transgenic tobacco is treated by fusarium oxysporum, fusarium solani, alternaria alternata, NaCl, AlCl3, gibberellin, methyl jasmonate, salicylic acid, abscisic acid and ethephon, the activity of glucuronidase is obviously enhanced; the pseudo-ginseng promoter R1 is induced by several plant hormones and biological and abiotic stress factors, and can be used for plant disease-resistant gene engineering.

The invention discloses a whole vehicle heat management system for a plug-in hybrid electric vehicle. The whole vehicle heat management system comprises a high-temperature system, an inner-cooling low-temperature system and a battery low-temperature system. In the high-temperature system, a cylinder temperature adjuster, a radiator temperature adjuster and a PTC (positive temperature coefficient)heater are opened and closed, flow distribution of cooling liquid is controlled, so that the temperature rapidly rises when cold boot is implemented, an engine is rapidly heated, and oil consumption and omission are reduced. In an EV (electric vehicle) mode, control of tee is implemented. At the heating stage, a series circuit is formed between a battery and a motor controller, a series circuit isformed between a charging machine and a driving motor, the battery is heated by heat of the motor controller, the charging machine and the driving motor, optimal operating temperature of the batteryis kept, and energy cannot be wasted. At the cooling state, a circulation system is divided into two independent circulation systems, and optimal operating temperatures of the battery, the motor controller, the charging machine and the driving motor are ensured. According to the system, engine heating speed can be effectively improved, and oil consumption and omission are reduced.

The invention discloses a recovering device for stainless steel service plates and belongs to the field of food machinery. The recovering device comprises turning boxes, a fixed rotating shaft, a support, a push mechanism, a primary meal recovering box, a secondary meal recovering box, a primary sweeping roller brush, a conveying mechanism, a secondary sweeping roller brush and a tableware recovering box; the push mechanism comprises receiving trays, ball screw guide rails, stepping motors, front push plates, separating holes and wedge-shaped inlets; the conveying mechanism comprises a conveying motor, a driving shaft, a driven shaft, service plate conveying grooves, middle conveying belts, side conveying belts and tableware clamping grooves; the primary sweeping roller brush comprises a primary motor and a primary sweeping roller; the secondary sweeping roller brush comprises a secondary motor and a secondary sweeping roller; and the tableware recovering box is located at the tail end of the conveying belt. The rail type turning boxes, a primary sweeping roller brush mechanism and a secondary sweeping roller brush mechanism are adopted, the service plates can be turned perfectly without energy waste and can be cleaned preliminarily, and the device perfectly completes recovering of the stainless steel service plates in large canteens.

The invention discloses an intelligent control system and an intelligent control method of a multi-specification tubular continuous annealing furnace, belonging to the technical field of intelligent control. Technical analysis and improvement are performed on the conventional continuous annealing furnace device; original single devices are rationally disassembled respectively; a plurality of groups of auxiliary push rollers, guide rollers, wire separation wheels and wire arrangement rods are additionally arranged on one set of equipment to form a continuous annealing production line capable of realizing simultaneous treatment and production of wires of multiple specifications; the annealing production line is intelligently controlled; temperature sensors are additionally arranged on the annealing furnace and a drying furnace to intelligently control the annealing and drying temperature. According to the system and the method, the annealing treatment on various wires of different specifications can be simultaneously completed on the same set of annealing equipment, and zero-tension annealing of the wires in the annealing furnace can be kept, so that the wires are prevented from being lengthened after being heated and softened, stable linear diameter is guaranteed, the equipment investment is reduced and the production cost is reduced; meanwhile, the automation degree is high, and remote monitoring and intelligent control can be realized.

The invention discloses a lilium regale inducible promoter PR4 and application thereof, the nucleotide sequence of the PR4 is shown as SEQ ID NO: 1, and the lilium regale inducible promoter PR4 is proved to respond to several plant hormones and biological stress through molecular biology and genetic engineering related technical research; and a fusion expression cassette constructed by the lilium regale promoter PR4 and a beta-glucuronidase gene is transferred into tobacco for expression, and the glucuronidase activity of transgenic tobacco is quantitatively detected through a fluorescence method. Results show that after the transgenic tobacco is treated by methyl jasmonate, salicylic acid, fusarium oxysporum, alternaria alternata and fusarium chlamydosporum, the activity of glucosidase is obviously enhanced; therefore, the lilium regale promoter PR4 is a promoter induced by plant hormones and biological stress factors and can be used for plant disease-resistant gene engineering.

The invention discloses a solar ray utilization method for plant culture. According to the method, botanical plants to be cultured, a shutter horizontally arranged above the plants and an automatic control system are adopted; the shutter comprises a rectangular framework and a plurality of blades rotatably and parallelly arranged in the framework; the upper surfaces of the blades are provided with solar photovoltaic cells; the lower surfaces of the blades are provided with light-emitting diode (LED) lamps; and the automatic control system comprises a control device with preset procedures, a storage battery and a stepping motor. By the method, solar energy stored in the daytime is utilized to continuously provide light for the plants at night, the plants are simultaneously prevented from being burnt by strong light by automatically adjusting the shutter to open angles, and the energy cannot be wasted, so that solar rays can be further and effectively utilized to improve appropriate-strength illumination time of the plants in each day and shorten the grow and culture period of the plants.

The present invention relates to an apparatus and a method for a high temperature test and a low temperature test. The apparatus mainly comprises a depressing head and a test base, wherein the depressing head comprises a cooling module, a heating module, and a heat dissipation module therein, the heat dissipation module comprises a finned heat sink and a heat conduction member, and the heat conduction member is thermally coupled to the heating module and the finned heat sink. When the low temperature test is performed, an electronic component is cooled by filling liquid nitrogen into the cooling module of the depressing head. When the high temperature test is performed, the electronic component is heated by the heating module. If the temperature of the electronic device is higher than a predetermined high temperature, the electronic device is cooled by the heat dissipation module.

The invention discloses a lilium regale inducible promoter PD1 and application thereof, the nucleotide sequence of the inducible promoter PD1 is shown as SEQ ID NO:1, and the lilium regale inducible promoter PD1 is proved to respond to several plant hormones, biological stress and abiotic stress through molecular biology and genetic engineering related technical research; a fusion gene expression cassette constructed by the lilium regale promoter PD1 and a [beta]-glucuronidase gene is transferred into tobacco for expression, and the glucuronidase activity of transgenic tobacco is quantitatively detected through adoption of a fluorescence method. Results show that after the transgenic tobacco is treated by abscisic acid, salicylic acid, methyl jasmonate, gibberellin, ethephon, fusarium solani, injury stress and sodium chloride, the activity of glucosidase is obviously enhanced; and the inducible promoter PD1 disclosed by the invention has a wide application prospect in genetic engineering for resisting biological or abiotic stress.

The invention discloses a novel grain corn combine harvester. The harvester comprises a driving control system, a transmission system, a traveling system, a header unit and a threshing unit, wherein the corn header unit is arranged at the front end of a harvester body, the threshing unit is arranged at the back end of the header unit and connected with the header unit through an elevating bridge, a collecting box and a grain recovery box are arranged on the threshing unit, and a straw returning device is arranged at the tail of the harvester body. The harvester is simple in structure, reliable in performance, high in threshing efficiency and capable of well applicable to threshing of corn cobs and completely separating corn grains on the corn cobs, so that the phenomenon that the corn cobs are blocked when moving forwards is prevented, the threshing efficiency is greatly improved, corn cobs can be recovered and utilized, the resource utilization rate is increased, full automation and systematization of corn harvesting are realized, and the harvester is clear in classification and high in efficiency.

The invention discloses a lilium regale inducible promoter PG1. A nucleotide sequence of the lilium regale inducible promoter PG1 is as shown in SEQ ID NO:1. According to the invention, molecular biology and genetic engineering related technical researches prove that the lilium regale inducible promoter PG1 responds to a few plant hormones, organisms and abiotic stresses; a fusion expression cassette constructed by the lilium regale promoter PG1 and a beta-glucosidase gene is transferred into tobacco to be expressed; the glucosidase activity of transgenic tobacco is quantitatively detected through a fluorescence method; a result shows that after abscisic acid, salicylic acid, fusarium oxysporum, nigrospora oryzae, alternaria compact and damage stress treatment, the glucosidase activity of the transgenic tobacco is obviously enhanced; and the lilium regale promoter PG1 is induced by a few plant hormones, organisms and abiotic stress factors, and has a wide application prospect in biological or abiotic stress resistant genetic engineering.

The invention relates to a cooling fan rotational speed control device, a cooling fan rotational speed control system and a rotational speed control method. The cooling fan rotational speed control system comprises the control device and a cooling fan; and the control device comprises an inside-vehicle ambient temperature detection module, an outside-vehicle ambient temperature detection module, an air conditioner pressure detection module and a control module. The inside-vehicle ambient temperature is detected, the inside-vehicle comfort temperature difference is calculated, the inside-vehicle comfort temperature difference is compared with a set temperature difference limiting value, if the inside-vehicle comfort temperature difference does not meet the requirement, an air compressor isstarted, the air conditioner refrigerant pressure is detected, if the air conditioner refrigerant pressure is in a set value range, the inside-vehicle ambient temperature, the air conditioner refrigerant pressure and outside-vehicle ambient temperature data are processed correspondingly, and the rotational speed of the cooling fan is obtained. Therefore, the rotational speed of the cooling fan canbe adjusted correspondingly through detected related data, multi-stage control and precise control over the rotational speed are achieved, the cooling and heat dissipating requirements are met, and unnecessary energy is not wasted.