34results about How to "Improve maximum efficiency" patented technology

The invention relates to a gyroplane and further relates to a variable-torque four-rotor aircraft with large load capacity. The variable-torque four-rotor aircraft with large load capacity contains a fuselage, four rotor arms which are connected with the fuselage and are symmetrically distributed, and rotors positioned on the rotor arms. Among the four rotors, two adjacent rotors rotate in opposite directions. The included angle of each rotor blade 1201 to the water level can be adjustable, thus making the lift force adjustable and further adjusting the attitude of the aircraft. According to the invention, operationality of the aircraft is substantially raised.

A powertrain for transmitting power to a driven wheel of a motor vehicle includes a power source that includes a reversible electric machine. A first transmission includes an input driveably connected to the power source, a first output, and a mechanism for producing a stepless variable range of ratios of a speed of the output to a speed of the input. An epicyclic transmission includes a second input driveably connected to the power source, a third input driveably connected to the first output, and a second output driveably connected to a drive wheel. The transmissions produce a range of speed of the drive wheel that varies from negative to positive and includes zero.

The invention discloses an alpha-galactosidase stability protective agent to increase and improve odor aspergillus ZU-G1 liquid fermentation production, which is characterized by the following: making mass percent as 18-36 wt manna sugar, 76-126 wt raffinose and 38-95 mycose; adding 130-260mg protective agent into per 100ml alpha-galactosidase rough enzyme liquid with odor aspergillus ZU-G1 liquid; increasing 30-60 deg.c enzyme active reserving ratio at 11.6 %-21.7% with this protective agent; reducing acid-resistivity from pH4.0 to pH3.0; retaining 52% activator under the environment of pH3.0; increasing biggest worked efficiency of alpha-galactosidase; widening the appliance of this enzyme in acid environment.

The invention discloses a fusion protein for improving gene editing efficiency and application thereof. The fusion protein comprises a single-stranded DNA binding protein functional domain, nucleoside deaminase and nuclease. According to CBEs, in the process of carrying out C-G to T-A base conversion, nucleoside deaminase such as cytosine deaminase takes single-stranded DNA as a substrate to carry out deamination, and a single-stranded DNA binding protein functional domain is fused on fusion protein of nucleoside deaminase and nuclease, so that the opportunity that the single-stranded DNA is exposed to nucleoside deaminase is greatly increased, and the base editing efficiency is obviously improved. The single-base gene editing technology is improved in a breakthrough manner, and the application of the fusion protein in the aspects of gene editing, gene therapy, cell therapy, animal model manufacturing, crop genetic breeding and the like can be greatly promoted.

The invention discloses a method and a system for controlling a variable output pump assembly, wherein the variable output pump assembly is formed by connecting n variable output pumps in parallel; according to a target output volume q of the variable output pump assembly, under a predetermined working pressure p, a functional relation between the efficiency e of the variable output pump assembly and the target outputs q1, q2, ellipsis, qn of the n variable output pumps is constructed; according to the functional relation, the target outputs q1, q2, ellipsis, qn of the n variable output pumps under the maximum efficiency max(e) of the variable output pump assembly is worked out through a optimization algorithm; and moreover, the n variable output pumps in the variable output pump assembly are controlled to run under the target outputs q1, q2, ellipsis, qn. In such a way, the efficiency and the service life of the variable output pump assembly are improved and prolonged respectively. The invention also provides engineering machinery comprising a control system of the variable output pump assembly.

The invention relates to a self-tuned type broadband smartwatch antenna and a method thereof. The self-tuned type broadband smartwatch antenna is composed of a mechanical part and an antenna part; the mechanical part is composed of a second hand, a second hand rotating shaft, a second wheel, a cam and a spring connection body; the antenna part comprises an antenna feeding piece and an antenna radiation body; the second wheel and the centre of the second wheel are coupled through the second hand rotating shaft; the cam is arranged at the other side of the centre of the second wheel; the second wheel is connected with the antenna part through the cam; the antenna feeding piece and the antenna radiation body are physically connected through the spring connection body; feeding is realized through capacity coupling of the antenna feeding piece and the antenna radiation body; furthermore, electromagnetic radiation is generated; the antenna mechanically rotates by utilizing the second hand; and the distance between the antenna feeding piece and the antenna radiation body is changed. According to the self-tuned type broadband smartwatch antenna and the method thereof disclosed by the invention, the antenna mechanically rotates by utilizing the second hand; the distance between the antenna feeding piece and the antenna radiation body is changed; therefore, the self-tuned antenna having the multi-frequency-band broadband performance can be realized; by means of the self-tuned structure, 1.8-2.74 GHz frequency bands, 4G TDD LTE common frequency bands and WIFI 2.4 GHz frequency bands can be covered; and furthermore, high efficiencies of various frequency points can be ensured.

The invention discloses a preparation method for a tin-doped indium phosphide quantum dot sensitized solar cell. The preparation method comprises the following steps: (1) mixing Sn<2+>, In <3+> and long-chain alkyl acid to obtain a mixture, and adding the mixture into an octadecene solvent to mix to obtain a mixed solution; (2) preparing the mixed solution into an carboxylic acid indium precursor solution containing dopant ions; (3) adding tri (trimethyl silicyl) phosphine to prepare a tin-doped indium phosphide quantum dot solution; (4) separating and purifying the indium phosphide quantum dot solution; (5) transferring the indium phosphide quantum dot solution into a water phase from an oil phase; (6) preparing a quantum dot sensitized FTO / TiO2 electrode plate; (7) assembling the quantum dot sensitized FTO / TiO2 electrode plate with a cuprous sulfide electrode plate, and injecting polysulfide electrolyte to obtain the tin-doped indium phosphide quantum dot sensitized solar cell. The preparation method is reasonable in design and convenient to operate, and the short-circuit current and the photoelectric conversion efficiency of the cell are remarkably improved, and therefore, the preparation method is suitable for being popularized and applied.

The invention discloses a method uses to increase Bacillus licheniformis ZJUEL31410 elastase stability. It includes the following steps: adding bovine serum albumin, gelatin, and hydration calcium chloride into CGMCC 1397 lichen bacillus ZJUEL31410 elastase coarse enzyme liquid; and their weight-to-volume ratio with the coarse enzyme liquid are respectively 1-3g / 100ml, 1-3g / 100ml, and 1-3mmol / L. The method can increase lichen bacillus ZJUEL31410 elastase thermal stability and pH tolerance.

A two-way low lift water pumping device shaped like Omega in Greek letters comprises two-way water inlet and outlet flow channels, a fast gate, a two-way low-hump siphon type water outlet structure, a vacuum breaking device and a pump device, wherein the pump device is perpendicularly arranged between the water inlet and outlet flow channels, the water inlet and outlet flow channels on the two sides of the pump device are respectively provided with a direction adjusting gate hole, horizontal partition plates are arranged on the upper middle portions of the water inlet and outlet flow channels, the horizontal partition plates on the two sides of the pump device are respectively provided with a diving hole opening with a buoyancy tank direction adjusting gate, the buoyancy tank direction adjusting gates are gates commonly used by the diving hole openings and the direction adjusting gate holes, the direction of water flow is changed by controlling the buoyancy tank direction adjusting gates, two-way water pumping is achieved, and a top vent hole connector on the top of the low-hump siphon type water outlet structure is connected with a vacuum breaking valve. The two-way low lift water pumping device solves the technical problems that a two-way low lift pump station emergently needs high-efficiency water pumping devices, the water outlet level of a vertical pump device is higher than the water level of an outlet of the pump station because the axial size of the vertical pump device is large, and lift is wasted. The two-way low lift water pumping device is compact and reasonable in engineering structure and convenient to manage and control, investment is saved, and forward and backward pumping efficiency is improved substantially.

The invention discloses a compressed air energy storage system and thermal power plant control system coupling control method. The compressed air energy storage system and thermal power plant controlsystem coupling control method comprises compressed air energy storage system charging process control and discharging process control, and during the charging process control, ambient air is compressed and stored in an air storage tank AST; outlet air of a compressor is cooled by air coolers; outlet water of a condensation pump is fed into a low-temperature air cooler LTC1 and a low-temperature air cooler LTC2 and heated to the outlet temperature of a regenerative heater L1 of a control system of a thermal power plant; and outlet water of a water feeding pump is supplied to a high-temperatureair cooler HTC1 and a high-temperature air cooler HTC2 of a compressed air energy storage system so as to be merged into an outlet of the corresponding regenerative heater of a thermal power generation system. The technical problem that in the charging and discharging process of the compressed air energy storage system in the prior art, the heat loss of heat storage equipment is caused due to thefact that the compressed heat release amount released to a heat storage working medium in the charging process is larger than the heat absorption amount released to air by the heat storage working medium in the discharging process is solved.

The invention provides an air inlet prerotator with adjustable blade angle, and belongs to the technical field of power machinery. The air inlet prerotator with adjustable blade angle is installed atan air inlet of a compressor of a turbocharger and comprises a wheel hub, a rim and a dial assembly which are arranged coaxially from the inside to the outside; the wheel hub is connected with the airinlet of the compressor; the dial assembly comprises a first dial and a second dial which are connected with each other, the first dial and the second dial are both provided with chutes; the first dial or the second dial is connected with an electric control actuator through a movement connecting rod; one end of the wheel hub is provided with a wheel head which is used for guiding flow and preventing adjustable blades from moving along the axial direction of the wheel hub; the plurality of adjustable blades are uniformly arranged around the wheel hub, one ends of the adjustable blades are connected with the wheel hub, the other ends of the adjustable blades are connected with a deflector rod, and the deflector rod is connected with the chutes in a sliding manner. The air inlet prerotatorwith adjustable blade angle has simple structure, can widen the flow and regulation range of the supercharger compressor, and improve the economy and adaptability of an engine.

The invention discloses a 9-phenyl-substituted fluorene derivative, and a preparation method and an application thereof; the 9-phenyl-substituted fluorene derivative has the following molecular structure defined in the specification. The invention provides a method for simple preparation of a multi-functional organic electroluminescent material; the method is simple in process and low in manufacture cost; through simple solution-method preparation process, high-efficiency green light devices or orange phosphorescent devices can be obtained, and the method is suitable for large-scale industrialized production.

The invention relates to a method and device for operating an electric machine (10) for outputting a predefined torque and a predefined rotational speed, comprising the following steps: providing (420) a first and a second operating mode for the operation of the electric machine (10); detecting (430) a temperature of the electric machine (10); and operating the electric machine (10) in the first operating mode (440) if the detected temperature falls below a threshold value, and operating the electric machine (10) in the second operating mode (450) if the detected temperature corresponds with the threshold value or exceeds same. During the operation of the electric machine (10) in the second operating mode (450), with the resulting output of the predefined torque and the predefined rotational speed, the magnetic stator flux of the electric machine (10) is reduced compared with the magnetic stator flux of the electric machine (10) during the operation of the electric machine (10) in the first operating mode (440), with the resulting output of the predefined torque and the predefined rotational speed.

A whole set of automatic sargassum fusiforme processing device includes working layers, a transmission belt and a bracket; the working layers include a first working layer, a second working layer anda third working layer; the first working layer is internally provided with a cleaning chamber, an arsenic removal chamber and a deodorization chamber successively; the second working layer is internally provided with a swashing chamber and a soaking chamber successively, and the third working layer is internally provided with a cooking chamber, a drying sorting chamber, a sterilization packing chamber and a control center successively; a water injection pipeline is arranged on the first working layer and the second working layer, and water injection support frames are arranged on both sides ofthe transmission belt; the transmission belt is provided with a smooth metal plate, the bottom of the metal plate is provided with a separation layer, and a number of water discharge holes are arranged in the metal plate uniformly, a water discharge port is arranged in the bottom of the separation layer, the transmission belt is provided with a transmission engine, the bottom of the transmissionbelt is provided with a protective shell, and a switch is arranged on the transmission engine. The invention provides the fully automatic and highly efficient sargassum fusiforme processing device.

A tinder storage container solar powered fire starter that includes top and lower housings that when coupled together form a water tight tinder storage cavity of which the inside bottom surface is a machined parabolic reflector that when used in conjunction with a tinder holder arm that securely positions the fire starting tinder at the exact focus of the reflective parabolic surface of the lower housing is able to use solar power to ignite combustible materials. The tinder holder arm is stowed in the top housing during non-use and incorporates a series of light through holes, and flex points, that provide maximum efficiency and quick positioning from stow configuration to fire starting configuration. The inside reflective inside surface of the top housing is a signal mirror, a lanyard hole is provided to prevent loss. An hour glass shaped air escape slot provides easy coupling of the top and bottom housings.

The invention discloses a synchronous charge extraction system, which relates to the field of charge extraction; comprising: the piezoelectric material generates charges through deformation and forms an alternating current; the frequency conversion circuit converts the low-frequency alternating current into a high-frequency alternating current, and accepts The control signal I generated from the bidirectional switch control circuit, the control signal I controls the first bidirectional switch in the frequency conversion circuit to turn on and off; the bidirectional switch control circuit generates control signals and sends them to the frequency conversion circuit and the DC -DC conversion circuit; the DC-DC conversion circuit receives the control signal II generated by the bidirectional switch control circuit, and the self-control signal II controls the conduction of the second bidirectional switch in the DC-DC conversion circuit after waveform conversion with cutoff. The maximum power and efficiency of energy harvesting are improved, and at the same time, because the matching inductance value is reduced in this circuit, the volume of the energy recovery device can be greatly reduced.

The invention relates to the technical field of electron transport materials for organic photoelectric devices, and discloses a cellulose electron transport polymer and a preparation method and application thereof. The structural formula of the cellulose electron transport polymer is disclosed in the invention; the cellulose electron transport polymer is used for preparing an electron transport material of an organic light-emitting diode and a cathode interface material of an organic solar cell. According to the TEMPO oxidized cellulose electron transport polymer provided by the invention, a functional group with an electron transport characteristic is introduced into a cellulose side chain, so that the solubility, the film-forming property and the electron transport characteristic of cellulose and derivatives thereof are regulated and controlled, and a new photoelectric function is achieved. From the aspect of application of the cellulose electron transport polymer, the maximum efficiency of an organic light-emitting diode prepared from the cellulose electron transport polymer is as high as 6.88 cd / A, the maximum brightness is as high as 21500 cd / m < 2 >, the external quantum efficiency is close to 6%, and remarkable technical effects are achieved. The photoelectric conversion efficiency of the organic solar cell prepared from the cellulose electron transport polymer reaches 8.6%-15.4%, and the effect is very excellent.

A high-frequency multiple harmonic impedance synthesis testing device based on a duplexer comprises a vector network analyzer, a radio frequency probe, a signal source, a direct-current power supply,a driving amplifier, a coupler, a bias device, an attenuator, a connecting piece and the duplexer. Two ends of the direct-current power supply are respectively connected with the bias device, the biasdevice is connected with the radio frequency probe, and the coupler is arranged between the bias device and the radio frequency probe. The coupler is connected with the vector network analyzer. The bias device connected with the left radio frequency probe is also connected with a tuner, and the tuner is connected with a signal source. The bias device connected with the right radio frequency probeis also connected with a harmonic active load module. The harmonic active load module comprises a duplexer, a power amplifier and a harmonic signal source. The attenuator is arranged between the coupler and the vector network analyzer. By arranging the low-power-consumption same-direction duplexer, the harmonic load impedance of the to-be-tested device is matched, and the maximum efficiency of the to-be-tested device is remarkably improved compared with that of the to-be-tested device only matched with a fundamental wave impedance point.

Security check methods and systems over a user on a vehicle may be provided. The security check method including checking an allowed security right to a destination of a vehicle for entry, detecting a security right of a user on the vehicle, and performing a security process related to getting off the vehicle, based on the security right of the user and the allowed security right may be provided.

The invention relates to a light-emitting device in the field of white light lighting, in particular to a cadmium sulfide (CdS) organic electroluminescent device. The light-emitting device comprises an ITO glass anode substrate, an NPB layer, a Rubrene layer, and an NPB Layer, DPVBi layer, Alq3 layer, LiF layer and Al cathode layer, it is characterized in that: it also comprises a CdS electron injection layer, and described CdS electron injection layer is arranged between Alq3 layer and LiF layer; Device of the present invention improves electron The injection can improve the balance of carriers and increase the rate of exciton formation, thereby improving the efficiency of white organic electroluminescent devices.

The invention provides a stress-regulated rapid charging method for a long-life lithium ion battery. The charging process is divided into two stages: the first stage is high-current constant-current charging, and in the second stage, the charging current continuously changes along with time, and the charging current is gradually reduced in the charging process. The invention provides a stress-regulated lithium ion battery rapid charging strategy capable of avoiding rapid degradation. The lithium ion battery rapid charging strategy effectively improves the lithium battery charging rate without sacrificing the battery capacity utilization rate and the cycling stability. According to the protocol provided by the invention, the charging time is greatly shortened without sacrificing the cycling stability and the capacity utilization rate.

The invention discloses a loose bed and bedrock layer mixed water-intaking and well-forming process for a geothermal well, and the process provided by the invention comprises the following steps: 1) using a slurry positive circulation well drilling process to perform well drilling till the depth of 5-10m below a complete bedrock surface; 2) sinking pipes, namely sinking a well wall pipe at the section below the bedrock surface and the section of a non-loose porous water layer of a loose bed and sinking a water-permeable pipe below the section of a loose porous water layer of the loose bed; 3)filling annular holes, namely pouring cement slurry into the annular holes corresponding to the section below the bedrock surface, putting a filter material into the annular holes corresponding to the loose porous water layer and putting clay balls into the annular holes corresponding to the section of the non-loose porous water layer of the loose bed; and 4) further using a drill bit with the diameter being 5-10mm smaller than the inner diameter of the well wall pipe to continue drilling in the bedrock layer through a clear water drilling process or a negative circulation well drilling process till a bedrock fracture water layer after the cement slurry waits on cementing for 72 hours and completing the well when the water temperature achieves the design temperature. The well drilling process for the geothermal well is suitable for developing geothermal resources in regions with poor geothermal resources and non-developed bedrock structures.