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42results about How to "Improve acceleration efficiency" patented technology

Browser and domain name resolution method thereof

The invention discloses a browser and a domain name resolution method thereof. The method comprises the following steps of: starting the browser, invoking DNS (Domain Name Server) acceleration data information, wherein the DNS acceleration data information comprises a plurality of domain names acquired in advance and IP address information corresponding to each domain dame; receiving an access request initiated by a user to a certain URL (Uniform Resource Locator), resolving the access request, and extracting the domain name corresponding to the URL; and detecting whether the DNS acceleration data information contains the domain name corresponding to the URL, and if so, acquiring the IP address information corresponding to the domain name, and performing access processing by utilizing the IP address information. The domain names acquired in advance in the DNS acceleration data information comprise a plurality of main domain names and a subdomain name corresponding to each main domain name. The DNS acceleration data information is formed by counting certain main domain names in advance. When the DNS acceleration data information is invoked by a user side browser, webpage browsing acceleration can be realized. The acceleration processing process consumes short time, and the efficiency of DNS acceleration is increased.
Owner:BEIJING QIHOO TECH CO LTD

Variable cross-section channel structure of low-power cusped magnetic field plasma thruster

The invention relates to a variable cross-section channel structure of a low-power cusp magnetic field plasma thruster, which relates to the field of cusp magnetic field plasma thrusters. The present invention aims to solve the problem that under the low power working condition of the existing tangential magnetic field plasma thruster, the insufficient ionization leads to performance degradation when the current density is low, and the performance degradation is also caused by the intensified interaction between the plasma and the wall surface when the current density is high. The problem. The channel is constructed by a ceramic channel and a permanent magnet. The ceramic channel is a one-piece structure, which is divided into two sections: the upstream part of the channel and the downstream part of the channel. The channel structure gradually expands from the upstream part of the channel to the downstream part of the channel. The outer wall of the ceramic channel is used for To achieve clearance fit with the inner wall of the permanent magnet. This structure increases the atomic density and ionization rate in the upstream ionization area, and at the same time reduces the interaction with the channel wall during the accelerated ejection of ions generated by ionization, prolonging the life of the thruster. It is used in the low power working condition of the tangent magnetic field plasma thruster.
Owner:HARBIN INST OF TECH

Motor speed control method and control system

The invention provides a motor speed control method and control system, and the speed control method employs an asymmetric S-shaped speed curve, and comprises: determining an acceleration curve equation through calculation according to a preset parabola curve equation at an acceleration stage of a motor, and controlling acceleration operation of the motor through the acceleration curve equation; in the motor constant-speed stage, controlling the motor to operate at a constant speed according to the speed corresponding to the acceleration termination moment in the acceleration stage; and in themotor deceleration stage, adopting a preset S-shaped speed curve with constant jerk, and controlling the motor to decelerate according to the S-shaped speed curve with the constant jerk. According tothe invention, an acceleration curve of a quadratic parabola with a downward opening is designed, the motor torque in the acceleration stage meets the load torque requirement, the running stroke of the motor is greatly improved within the same acceleration time, then the acceleration efficiency is improved, and in addition, by conducting reasonable trajectory planning on the whole movement process, connection between all movement stages is smooth and free of impact.
Owner:南京岸鸣智能科技有限公司

Data acceleration processing method and device and electronic equipment

The embodiment of the invention provides a data acceleration processing method and device and electronic equipment, and the method comprises the steps: obtaining table information of a to-be-accelerated first data table, and storing the first data table in a data warehouse; calling a first data definition template corresponding to the data warehouse and a second data definition template corresponding to the first acceleration library, and creating a first acceleration table in the first acceleration library according to the table information; generating a first acceleration task script according to the first acceleration task template; and executing the first acceleration task script, acquiring data in the first data table, and synchronizing the data into the first acceleration table. In the embodiment of the invention, the data definition template corresponding to the data warehouse and the first acceleration library and the first acceleration task template for executing data conversion are preset, so that automatic data acceleration processing is realized for a user, and the user only needs to provide information of a data table to be accelerated specifically; and the user does not need to intervene in a complex data conversion process between databases, so that the operation of the user is greatly facilitated, and the data acceleration efficiency is also improved.
Owner:CAINIAO SMART LOGISTICS HLDG LTD

Software and hardware collaborative message acceleration method and device

The invention discloses a software and hardware cooperative message acceleration method and device. The message acceleration method comprises the steps that a software acceleration layer judges whether a message carries mark information or not; if the message does not carry the mark information, the message is forwarded through a protocol stack, and a hardware acceleration behavior and a softwareacceleration behavior of the message are acquired according to a forwarding result of the protocol stack; the software acceleration layer allocates mark information according to the service type of the message, establishes a service processing module according to the mark information, and issues a software acceleration behavior to the service processing module; the software acceleration layer establishes a hardware search rule according to the feature information of the message, establishes a first association relationship among the hardware search rule, the hardware acceleration behavior andthe mark information, and issues the first association relationship to the hardware acceleration layer; and if the message carries the mark information, the message is allocated to a corresponding service processing module according to the mark information of the message, and software acceleration is carried out on the message by the service processing module according to a corresponding softwareacceleration behavior.
Owner:FENGHUO COMM SCI & TECH CO LTD +1

Particle accelerator based on laser-driven dielectric slice stacking

The invention discloses a particle accelerator based on laser-driven dielectric slice stacking, which is a multi-medium right-angled prism composed of a medium prism with a right-angled triangular cross section and at least one medium prism with a right-angled trapezoidal cross section; all the medium prisms are numbered from 1 according to the incident direction of laser pulses, wherein the firstdielectric prism is a right trapezoid dielectric prism, the last dielectric prism is a right triangle dielectric prism, and the lower bottom of the cross section of the first dielectric prism is equal to the side length of the right-angle side of the cross section of the multi-dielectric right-angle prism, which is incident by a laser pulse; the included angle between the bevel edge and the lowerbottom of the cross section of each right-angled trapezoid dielectric prism is equal to the base angle of the multi-medium right-angled triangular prism, and one acute angle of the cross section of each right-angled trapezoid dielectric prism is equal to the base angle of the multi-medium right-angled triangular prism. According to the method, particle deflection is avoided under the condition that no additional measures are taken, and synchronization of a laser field and the particles can be met without an additional wavefront correction technology.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS +1

Double-section coaxial toothed cathode pulse plasma thruster

The invention discloses a double-section coaxial toothed cathode pulse plasma thruster, and belongs to the technical field of micro satellite aerospace propulsion. The product mainly comprises a first-stage cathode, a first-stage anode, an insulating coating layer, a second-stage cathode, a second-stage anode, a propellant, an insulating outer shell, an insulating base, a supply spring and a spark plug. The inner surface of the primary cathode is provided with sharp teeth, so that the primary cathode is easier to discharge compared with a common cylindrical inner surface by utilizing a point discharge principle, and the system safety is improved; and the toothed cathode is used, so that the electric field and the current between the electrodes are more uniform, the non-uniform ablation of the propellant is improved, the indentation of the end face of the solid propellant in the continuous working process is reduced, the reliability is remarkably improved, and the working life is prolonged. The secondary cathode is in the shape of an expanded spray pipe, so that charged particles and neutral gas generated by discharging between the primary electrodes are accelerated more sufficiently, and the primary electrodes and the secondary electrodes are charged by respective independent capacitors, so that the reasonability of energy distribution is improved, and the overall acceleration efficiency of the thruster is improved.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

A multi-stage high-efficiency pulsed plasma thruster

The invention discloses a multi-section type high-efficiency pulse plasma thruster, and belongs to the field of micro-nano satellite micro-propulsion. The thruster is mainly composed of a one-sectionanode, a one-section cathode, a two-section anode, a two-section cathode, an insulation section, a trigger electrode, a trigger working medium, an energy storage capacitor set, a propellant, a coatinglayer and an outer shell body; the electrodes of the thruster are divided into two sections, each section of electrodes is provided with a voltage through a respective energy storage capacitor, so that the total energy distributed to different capacitors discharging at different positions are realized, so that a propellant ablation ionization process and a plasma acceleration process are separated, more energy is enabled to be used for the plasma acceleration process, and the whole acceleration efficiency of the thruster can be improved. A small amount of plasma is generated by triggering theworking medium which is triggered through a trigger electrode, the breakdown voltage between one-section electrode is greatly reduced to facilitate the triggering of initial discharge, and then the reliability of the operation of the thruster is further improved; and the thruster is suitable for application occasions of low-power wiener satellites, and meets corresponding task thrust requirements.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

A message acceleration method and device for software and hardware coordination

The invention discloses a message acceleration method and device with software and hardware cooperation. The message acceleration method includes: the software acceleration layer judges whether the message carries tag information; if the message does not carry the tag information, the protocol stack Forward the message, and obtain the hardware acceleration behavior and software acceleration behavior of the message according to the forwarding result of the protocol stack; the software acceleration layer allocates tag information according to the business type of the message, establishes a business processing module based on the tag information, and accelerates the software The behavior is sent to the business processing module; the software acceleration layer establishes hardware search rules according to the characteristic information of the message, and establishes the first association relationship between the hardware search rules, hardware acceleration behavior and tag information, and sends the first association relationship to the hardware acceleration layer; if the message carries tag information, the message is distributed to the corresponding business processing module according to the tag information of the message, and the service processing module performs software acceleration on the message according to the corresponding software acceleration behavior.
Owner:FENGHUO COMM SCI & TECH CO LTD +1

Aging test device and aging test method for O-shaped sealing ring

The invention discloses an aging test device and an aging test method for an O-shaped sealing ring. The aging test device for the O-shaped sealing ring comprises an air valve, a barometer, a flange top cover, at least one flange plate and a flange bottom cover, the flange plate and the flange bottom cover are each provided with an O-shaped groove for installing an O-shaped sealing ring, a plurality of through air holes are formed in each O-shaped groove, and the through air holes are used for enabling aged background gas to make full contact with the O-shaped sealing rings; a through hole is formed in the center of the flange top cover, the air valve is installed at the top of the flange top cover through the through hole, a through hole is formed in the side face of the air valve, and the barometer is connected with the air valve through the through hole. The flange top cover, the flange plate and the flange bottom cover are detachably connected in sequence from top to bottom. The aging test device is simple in structure and convenient to operate, the contact area between the O-shaped sealing ring and background gas used for aging can be increased, the O-shaped sealing ring can make full contact with the background gas, and therefore the acceleration efficiency is improved, and an efficient, rapid and accurate aging test is achieved.
Owner:ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +1

Radio frequency superconducting cavity with slit waveguide structure for superconducting accelerator

The invention relates to a radio frequency superconducting cavity with a slot waveguide structure for a superconducting accelerator, which belongs to the technical field of accelerator physics. The radio frequency superconducting cavity comprises multiple oval spherical cavities, bundle tubes and alary slit waveguides, wherein the multiple oval spherical cavities are connected with one another inseries; both ends of the multiple oval spherical cavities which are connected with one another are the bundle tubes; each oval spherical cavity and the outer walls of the bundle tubes at the two endsare uniformly distributed with multiple slits along the circumferential direction; and the slits of each oval spherical cavity and the slits of the bundle tubes at the two ends are connected by the corresponding alary slit waveguides. The radio frequency superconducting cavity of the invention has super-high attenuation of a dipole module and a quadrupole module, so that ERL of GeV magnitude reaches the average current intensity of ampere magnitude; the radio frequency superconducting cavity can reach a BBU threshold value over the ampere magnitude; the radio frequency superconducting cavity can be formed by punching at one time due to no weld joint in a high electric field; therefore, machining difficulty is greatly reduced, time and cost for product production are reduced, the products are suitable for mass production, and the production cost is reduced.
Owner:PEKING UNIV
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