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42results about How to "Control characteristics" patented technology

Two-staged turbocharging system testing device and testing method

The invention discloses two-staged turbocharging system testing device and testing method. The components of an analogue turbocharging system are as follows: the outlet of an air compressor for simulating exhaust flow of an engine is sequentially connected with a filtering tank, a laminar flow meter, an intake control valve, a surge tank, a heater, an intake pressure regulating valve and high- and low-pressure turbines to empty; a branch pipe of an inlet pipe of the filtering tank is provided with a vent valve; a vortex side bypass-valve is connected between the inlet and the outlet of the high-pressure turbine; the outlet of a low-pressure gas compressor is sequentially connected with an intercooler, a high-pressure gas compressor, a second intercooler, a second surge tank, a second laminar flow meter and a back pressure regulating valve and then outputs pressurized air; a pressure side bypass valve is connected between the inlet and the outlet of the high-pressure gas compressor. The gas temperature, pressure and flow are adjusted in a plurality of manners; the pre-vortex pressure and the temperature gradient are tested by transient pressure and temperature sensors; theoretical basis and data support are provided for a transient control strategy.
Owner:成都飞擎航空科技有限公司

Three-phase permanent-magnet synchronous motor rotor punching sheet suitable for both line starting and variable frequency starting

The invention relates to a three-phase permanent-magnet synchronous motor rotor punching sheet suitable for both line starting and variable frequency starting. The three-phase permanent-magnet synchronous motor rotor punching sheet is an iron core punching sheet which is super-ultra-high in efficiency and suitable for a rotor of a high pull-out torque three-phase rare-earth permanent magnet synchronous motor and a rotor of a variable-frequency and variable-speed motor three-phase permanent magnet synchronous motor, and is used for a permanent magnet synchronous motor with a 132 base. The three-phase permanent-magnet synchronous motor rotor punching sheet is provided with a rotor punching sheet body made of a low-loss silicon steel sheet in a punching mode. Starting rod holes are evenly distributed on the outer circumference of the rotor punching sheet body, and W-shaped magnetic steel grooves are evenly formed in the rotor punching sheet body. A magnetic isolation bridge A is arranged between the lower portions of the starting rods and the magnetic steel grooves, and a magnetic isolation bridge B and a magnetic isolation bridge C are arranged between every two adjacent magnetic steel grooves. Rigidity reinforced screw holes and rotor shaft holes are formed in the rotor punching sheet body.
Owner:JIANGSU JIUZHI MOTOR TECH

Method and equipment for forming optical films on workpiece

The invention relates to a method and equipment for forming optical films with various functions on a workpiece. A pulse plasma chemical vapor deposition method is adopted as the method. The method comprises the following steps that a, the workpiece is fixedly arranged in a sealed microwave cover, and the sealed microwave cover is vacuumized; b, oxygen is led into the sealed microwave cover, pulse microwaves are guided into the sealed microwave cover, and reaction is carried out for a certain time; c, gas containing film-forming component elements is led into the sealed microwave cover, the oxygen is continued to be led into the sealed microwave cover, the pulse microwaves are continued to be guided into the sealed microwave cover, reaction is carried out for a certain time, then, the gas is stopped from being led into the sealed microwave cover, and the pulse microwaves are stopped from being guided into the sealed microwave cover. The pulse plasma chemical vapor deposition method has the high deposition efficiency, the whole process only needs few minutes, and therefore the production efficiency is quite high; plasmas of the oxygen perform plasma cleaning and surface activation treatment on the surface of the workpiece before film forming, and therefore film adhesion is greatly improved; therefore, the product quality is improved.
Owner:HUIZHOU OBOLAND OPTOELECTRONICS TECH

Medical low-frequency electric pulse therapeutic instrument

ActiveCN107693942AMeet the safety of useMeet self-adjusting pulse characteristicsElectrotherapyArtificial respirationControl signalPulse characteristics
The invention creatively discloses a medical low-frequency electric pulse therapeutic instrument, which comprises a power supply module, a high-voltage generating circuit used for generating a high voltage, a pulse output circuit used for generating a pulse waveform, and a system controller. The control signal output end of the system controller is respectively connected with the control signal input end of the high-voltage generating circuit and the control signal input end of the pulse output circuit. The high-voltage output end of the high-voltage generating circuit is connected with the high-voltage power supply end of the pulse output circuit. The power supply module supplies the power to the high-voltage generating circuit, the pulse output circuit and the system controller respectively. The medical low-frequency electric pulse therapeutic instrument adopts the system controller to control the voltage value of the high-voltage generating circuit and the pulse characteristics of the pulse output circuit. Therefore, the use safety of a user is ensured. Meanwhile, the pulse characteristics can be automatically adjusted by the user according to the requirement of the user. The usage comfort of the user is enhanced.
Owner:南京春之象电子技术有限公司

Controllable intelligent surface auxiliary energy transmission device and transmission method thereof

The invention belongs to the technical field of wireless energy transmission, and provides a controllable intelligent surface auxiliary energy transmission device and a transmission method thereof. Firstly, all the receiving terminals transmit orthogonal pilot signals, and each controllable intelligent surface estimates channel information from all the receiving terminals to the controllable intelligent surface; all the controllable intelligent surfaces send orthogonal pilot signals, and the energy station can estimate channels from all the controllable intelligent surfaces to each antenna ofthe energy station; secondly, all the controllable intelligent surfaces and the energy station exchange large-scale channel information, and the controllable intelligent surfaces calculate required phase angles and precoding coefficients required by the energy station by using the estimated channel information; and finally, the energy station radiates signals to the controllable intelligent surface by using the constructed precoding, and all receiving terminals collect energy. According to the invention, the controllable intelligent surfaces are used to change the transmission path of the signal, and energy transmission of the user is shielded.
Owner:BEIJING UNIV OF POSTS & TELECOMM

Detection method of human PLIN1 gene rs2289487 site polymorphism and kit

Provided are a detection method of human PLIN1 gene rs2289487 site polymorphism and a kit. The method comprises the steps that genome DNA of a person to be detected is provided; an upstream primer and a downstream primer used for amplifying a sequence near a human PLIN1 gene rs2289487 site are provided, wherein the upstream primer has a mismatched base C; the genome DNA of the person to be detected is taken as a template, and a PCR amplification reaction is conducted through the upstream primer and the downstream primer so as to obtain an amplified product containing a CGCG fragment or a TGCGCA fragment, wherein R represents an undetermined base A or G on the human PLIN1 gene rs2289487 site; restriction endonuclease is provided; enzyme digestion is conducted on the obtained amplified product through the restriction endonuclease to obtain a corresponding enzyme digestion product; whether the undetermined base R on the human PLIN1 gene rs2289487 site is A or G is determined according to the obtained enzyme digestion product. The restriction endonuclease can cut apart one of the CGCG fragment and the CGCA fragment or can cut apart one of the TGCGCA fragment and a TGCGCG fragment. According to the detection method of the human PLIN1 gene rs2289487 site polymorphism, the detection means is rapid and reliable, and the detection cost is greatly reduced.
Owner:ZHENGZHOU UNIV
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