67results about How to "Meet the needs of the design" patented technology

The invention provides a dynamic comparator. The dynamic comparator comprises a pre-amplification circuit, a dynamic latch circuit and an output-stage circuit which are connected in sequence, wherein the pre-amplification circuit comprises a first-stage amplification unit adopting an input detuning storage technology and a second-stage amplification unit adopting an output detuning storage technology; the dynamic latch circuit is used for amplifying the output signal of the pre-amplification circuit, and transforming the amplified signal into a digital logical output level; the output-stage circuit is used for outputting the digital logical output level at a latched phase, and outputting logic zero at a rest phase. The dynamic comparator provided by the invention adopts a detuning canceling technology and a structure isolating kickback noise in the pre-amplification circuit, thus effectively reducing the input detuning voltage, and greatly meeting the demands for design of high speed and high precision analog-digital convertors.

The invention discloses a redundant electronic steering system and control method of an autonomous vehicle. Two electronic power steering units are arranged, wherein each electronic power steering unit comprises a processor, a steering angle and torque sensor and a motor, wherein the steering angle and torque sensor and the motor are correspondingly connected with the processor; the steering angleand torque sensor is used for outputting a torque signal and an angle signal; the processor is also used for calculating a current total torque value K, needing to be output, of the whole system according to a current expected steering wheel steering angle signal, a torque signal and an angle signal and calculating a torque value needing to be output by the electronic power steering unit according to a distribution mechanism; and the processor is also used for controlling the motor correspondingly connected with the processor according to the torque value to control the vehicle to realize steering. According to the redundant electronic steering system and control method of the autonomous vehicle, full redundancy of the electronic steering system is realized, and safety requirements of automatic driving can be satisfied.

The invention provides a programmable fully-differential gain-bootstrap operational transconductance amplifier comprising a front-arranged pre-amplifying circuit, a rear sleeve-type gain-bootstrap amplifying circuit, a bandwidth programming circuit and an output common mode feedback circuit. The front-arranged pre-amplifying circuit is used for amplifying differential input signals and outputting pre-amplified differential input signals; the rear sleeve-type gain-bootstrap amplifying circuit is used for amplifying output signals of the front-arranged pre-amplifying circuit to form differential output signals; the bandwidth programming circuit is used for adjusting the bandwidths of the front-arranged pre-amplifying circuit and rear sleeve-type gain-bootstrap amplifying circuit according to programming control signals input externally; the output common mode feedback circuit is used for inputting common mode feedback signals to the rear sleeve-type gain-bootstrap amplifying circuit according to the differential output signals to allow the rear sleeve-type gain-bootstrap amplifying circuit to output different output signals of common mode levels in a predetermined range; the amplification multiple of the front-arranged pre-amplifying circuit is smaller than that of the rear sleeve-type gain-bootstrap amplifying circuit. The programmable fully-differential gain-bootstrap operational transconductance amplifier is capable of increasing the bandwidths and has the function of programming and adjusting the bandwidths.

The invention discloses an array substrate, a manufacturing method thereof, a display panel and a manufacturing method thereof. A first active layer manufactured from a metal oxide is used in a display area on the array substrate, so that the off-state current of a formed first switch transistor is relatively low, the metal oxide through fabrication processing can become into a microcrystal state from an amorphous state, and the stability of the first switch transistor is improved; and moreover, a second active layer manufactured from a polycrystalline silicon material is used in a surrounding area on the array substrate, so that a formed second switch transistor has relatively high electron mobility and relatively high drive capability and is applicable to constructing a drive circuit, and the requirement of an integrated drive circuit design in the surrounding area on the array substrate is met. In conclusion, the active layers of the switch transistors manufactured from the metal oxide and the polycrystalline silicon are used in the display area and the surrounding area on the array substrate respectively, so that the structural design of the array substrate is optimized, the display effect of the display product is guaranteed, and the product yield is improved.

The invention discloses a redundant electronic steering braking system which comprises two electronic power-assisted steering units, a main braking unit and a slave braking unit. The two electronic power-assisted steering units are used for jointly controlling an automobile to steer. The main braking unit is used for receiving a control command from an automobile bus, calculating the control command and executing result output. The slave braking unit is used for receiving the control command from the automobile bus, calculating the control command and deciding whether result output is executedor not on the basis of a state signal of the main braking unit. The redundant electronic steering braking system can meet the requirement for automatic driving safety.

The invention discloses a glass cleaning machine for glass manufacture. The glass cleaning machine comprises a working platform, a cleaning room, an air drying room, a detection room, a clamping device and a discharging table, wherein a transverse movement support is arranged above the working platform; a transverse track is arranged on the transverse movement support; the clamping device comprises a support plate, a movable cylinder, a clamping guide rail and clamping claws; a movable sliding block is arranged on the right side of the support plate and limited in the transverse track; a limit slot is formed in the clamping guide rail; and a clamping sliding block is limited in the limit slot. The glass cleaning machine is simple in structure and high in practicability; as the detection room is designed to scientifically detect cleaned glass, compared with the naked-eye observation mode, the glass cleaning machine is more accurate and scientific; together with the designed clamping device, glass can be cleaned more automatically, and the quality of cleaned glass is better; and meanwhile, as a wastewater treatment box is designed, water in the cleaning room can be recycled, accordingly, the water resources are saved, and the comprehensive utilization efficiency is improved.

The invention discloses novel specific polypeptide, which comprises 114 novel specific polypeptides, and is characterized in that the novel specific polypeptide has a length of about 8 to 20 amino acids, can establish a model of an SARS virus polypeptide sequence, can react with an antibody in human serum produced by the irritation of SARS viruses and the like. The novel specific polypeptide can be used for preparing a medicament for diagnosing, treating and preventing severe acute respiratory syndrome caused by coronaviruses.

The invention discloses a method of obtaining a full-reactor effective resonance self-shielding section. Dankov correction factors of all fuel rods of the whole reactor are solved and obtained througha neutron current method, equivalent one-dimensional rod models of all the fuel rods are then equivalently obtained through the Dankov factors, moderator radiuses of three typical one-dimensional rodmodels are selected from all the equivalent one-dimensional rod models, the fuel temperatures of the three typical one-dimensional rod models and the burnup depths of the burnup areas of the two typical one-dimensional rod models are selected according to calculation requirements, a plurality of typical one-dimensional rod models are constructed for the numerical values of the three variables ina one-to-one combination manner, the typical one-dimensional rod models are solved by adopting an ultra-fine group resonance calculation method, the effective self-shielding section of the resonance nuclide in the typical one-dimensional rod model is obtained, the effective self-shielding section is made into an interpolation table with the moderator radius, the fuel temperature and the burnup depth as interpolation variables, interpolation is conducted on all the equivalent one-dimensional rod models needing to be calculated, and the effective self-shielding section of the resonance nuclide in all the fuel rods is obtained. Thus, the accurate and effective self-shielding section of the whole reactor can be quickly obtained.

The invention relates to the field of the Internet, in particular to an advertisement poster generation method and device, a storage medium and a terminal. The method comprises the steps: obtaining content elements of an original advertisement poster, and obtaining a target poster template from a poster template library through retrieval according to the types and the number of the content elements; changing the size of the target poster template to the size of an advertisement poster in a specified application scene, and obtaining the aspect ratio of a content element framework of the changedtarget poster template; calculating the difference between the aspect ratio of each content element of the original advertisement poster and the aspect ratio of the content element framework corresponding to the changed target poster template; and if the difference value is smaller than a preset threshold value, configuring the aspect ratio of each content element of the original advertisement poster as the aspect ratio of the content element framework corresponding to the target poster template, and filling the content element framework of the target poster template with the configured content elements to generate the target advertisement poster. The advertisement poster manufacturing efficiency is improved.

The invention discloses a high-frequency frequency source device, comprising a single chip GaNHEMT micro-wave oscillator for generating a high-power micro-wave oscillation signal, a phase lock circuit for receiving the micro-wave oscillation signal, and realizing phase lock of the micro-wave oscillation signal output by the GaNHEMT micro-wave oscillator, and a frequency multiplier circuit for receiving the phase locked micro-wave oscillation signal generated by the single chip GaNHEMT micro-wave oscillator, multiplying the micro-wave oscillation signal to a preset high-frequency frequency and then outputting the micro-wave oscillation signal. The high-frequency frequency source device of the invention conquers the disadvantage of bad noise performance of the high-frequency frequency source device based on a diode negative resistance structure in prior art, and has the advantages of low noise, high tunable performance and good stability.

The invention discloses a display panel and a display device, and relates to the technical field of display. The display panel is provided with a display area and a non-display area surrounding the display area. The display panel comprises an array substrate, a plurality of gate lines, a plurality of data signal lines, a circuit board and a control chip, the gate lines and the data signal lines are arranged on the first surface of the array substrate, the gate lines are arranged in the first direction and extend in the second direction, and the data signal lines are arranged in the second direction and extend in the first direction. The circuit board is arranged on the first surface of the array substrate and comprises a first connecting pin set and second connecting pin sets located on the two sides of the first connecting pin set, and the length of the second connecting pin sets is smaller than that of the first connecting pin set. The control chip is arranged on the circuit board, electrically connected with the data signal lines through the first connecting pin set and / or the second connecting pin sets and electrically connected with the gate lines through the first connecting pin set and / or the second connecting pin sets. In this way, the frame width of the display device can be reduced, and narrow frame design of the display device can be achieved.

The invention provides a layout parameter extraction method of an annular gate device, can accurately extract the breadth length ratio of the device by segmenting an annular gate and calculating the equivalent breadth length ratio of each segment respectively, and can also accurately extract the perimeters of a source region and a drain region of an annular gate transistor by changing the perimeter extraction rules of the source region and the drain region. The layout extraction rule customized by the invention can ensure the accuracy of extracted parameters and satisfy the requirement of model design of the annular gate device, thus solving the problem that the layout parameter of the annular gate device is difficult to be extracted accurately. For different processes and extraction tools, the method has portability and inheritance.

The invention discloses a method for calculating Euler angles of beam units of curved-surface single-layer latticed shells. The method comprises the following steps of: triangulating a curved-surfacesingle-layer latticed shell; establishing a node file node.text and a coordinate file element.text; finding out a set of nodes connected with a certain node, wherein each node in the set forms a beamunit with the node; for any beam unit, solving a directional third point coordinate vector; assuming that a vector corresponding to a Z axis in a global coordinate system is Z=[0, 0.1], solving a vector of each axis of a local coordinate system; and solving that an Euler angle BETA of a spatial beam is angle between a local coordinate axis z and a local coordinate axis z0 of a spatial beam, a mainplane of which is a vertical surface. The method can be used for calculating programming operation, has high calculation precision and calculation efficiency, can satisfy the requirements for large-scale curved-surface single-layer latticed shell design, is suitable for processing of multiple complicated curved surfaces, and is capable of processing problem of calculating Euler angles of beam units of large-scale curved-surface single-layer latticed shells.

The invention discloses an array substrate which comprises an array region and an attaching region. The array region comprises grid lines, data lines and array units which are limited by the grid lines and the data lines in a crossing mode. The attaching region comprises first attaching units located on the end portions of the data lines and electrically connected with the data lines. The array substrate is characterized in that a second attaching unit electrically connected with one grid line is arranged between at least one pair of adjacent first attaching units. Due to the fact that the second attaching unit electrically connected with the grid line is arranged between the at least one pair of adjacent first attaching units, the height difference between the attaching units in the attaching region and non-attaching units in the attaching region is reduced, and the product percent of pass is improved. The array substrate can further enable the length of the attaching units to be decreased on the premise that the attaching area of the attaching region is not decreased, and the requirements for narrow frame deign are met. The invention further provides a display device based on the array substrate and a method for manufacturing the array substrate.

The invention relates to a preparation method of an aluminum-silicon alloy lamellar gradient material. The preparation method comprises the following steps that 1, the layer number, the layer composition and the layer thickness of the aluminum-silicon alloy lamellar gradient material are designed, and raw materials with different silicon contents are prepared from, by weight, 22%-70% of silicon and the balance aluminum; 2, the raw materials which are prepared in the step 1 and have the different silicon contents are smelted; 3, aluminum-silicon alloy layers are prepared from aluminum-silicon alloy melt which is obtained in the step 2 and has the different silicon contents by adopting a rapid solidification and spraying deposition technology layer by layer; and 4, densification treatment isconducted on an ingot blank obtained in the step 3 by adopting pressure sintering, and the aluminum-silicon alloy lamellar gradient material is obtained. According to the preparation method, the gradient structure of the material can be designed according to the application requirements, and the preparation method has the advantages that the controllability is good, the process is stable, and theprepared gradient material is compact in structure and tight in bonding of layers. The gradient material is high in designability and suitable for electronic packaging shells.

The invention provides a deep silicon etching method for an MEMS, and belongs to the technical field of deep silicon etching. According to the technical scheme, the deep silicon etching method of theMEMS comprises a deposition step, a cleaning step, an etching step, a purging step, a repeated deposition step, a repeated cleaning step, a repeated etching step and a repeated purging step, and is characterized in that side circulation is carried out through the deposition step, the cleaning step, the etching step and the purging step for multiple times, and a sample is vacuumized. The beneficialeffects of the deep silicon etching method are as follows: the deep silicon etching method disclosed by the invention can be applied to a large-scale integrated circuit industrial manufacturing environment; particularly, the integrity of sensing elements can be kept during long-time etching, the device design requirement can be met, the purging step is added, the temperature of the vacuum reaction chamber and the temperature of the sample table can be reduced, the vacuum reaction chamber is kept within a constant range, and the uniformity of large-size samples after being etched and the roughness of the side wall of the MEMS device can be easily provided.

The invention relates to a verification method for a multi-port multi-message type cross communication component. The verification method comprises the following steps: defining various data domains contained in various message types; defining each path of physical channel on each port; establishing a corresponding relationship between various message types and corresponding physical channels of each port according to actual design requirements; establishing a transmission reference model according to actual design requirements; generating a test sequence accommodating various message types, and injecting the test sequence into the reference model and an actually designed sending port; collecting message queues of message types acquired on the transmission reference model and an actually designed receiving port; and comparing the sequence of the transmission reference model and the actually designed received message queue with the domain correctness of each type of data contained in each received message type in the queue. According to the invention, the verification result is more accurate and convenient.

The invention belongs to the technical field of fabric dyeing methods, and particularly relates to a dyeing method of a bamboo fiber fabric based on a mahonia bealei plant dye. When mahonia bealei, used as a natural plant dye, is applied to the bamboo fiber for dyeing, a fabric with the antibacterial property can be obtained to be more applicable to manufacturing of home clothes. The dyeing methodprovided by the invention comprises the following steps of carrying out desizing and scouring treatment on the fabric by adopting starch biological enzyme and scouring enzyme respectively, and performing bleaching by using hydrogen peroxide and hydrogen peroxide biological enzyme; and obtaining a mahonia bealei dyeing solution through alcohol extraction, carrying out dyeing by taking a salt as aco-dyeing agent, and then carrying out soaping. The color of the dyed fabric is soft and elegant, the dyeing process is simple, the mahonia bealei dye obtained through the alcohol extraction mode canbe freeze-dried and stored, and transport and use are facilitated. The scheme is applied to practical production and has high economic significance.

The invention discloses a construction method of long-span composite beam bridge with steel truss and corrugated steel web. The steel truss and corrugated steel web beam segment is arranged outside the fulcrum lining concrete segment in the bridge. The steel truss and corrugated steel web beam segment can effectively share the shear load of beam segment, prevent buckling instability of corrugatedsteel web and structural damage, meet the design requirements of long-span corrugated steel web beam bridge, and solve the problem of large shear of corrugated steel web of long-span corrugated steelweb bridge lining outer beam segment. Accordingly, the inventors also established corresponding construction methods. The invention is applicable to the design and use of beam bridges with spans of 160m and above, and has certain engineering significance and great economic value.

The invention relates to an indicating lamp for field operations, comprising a lamp body and a signal indicating part as well as an upspringing device arranged between the lamp body and the signal indicating part, wherein the bouncing device is used for upspringing the signal indicating part under the action of external force to raise the effective height of the signal indicating part. The upspringing device is arranged between the lamp body and the signal indicating part and is used forupspringing the signal indicating part under the action of the external force to raise the effective heightof the signal indicating part so that the indicating lamp has less occupied space and can also change and adjust the height as required. When the indicating lamp is used for indicating in the field operations, the height is enlarged so that the indicating lamp is not interfered by barriers and weeds, thereby enhancing the action of indication, meeting the requirements of design and saving space and materials.

The invention relates to a selective laser melting forming method of an aluminum-silicon gradient material. The selective laser melting forming method comprises the following steps of S1, designing the components and shape of the aluminum-silicon gradient material, and preparing raw materials with different silicon contents according to the weight percentage, wherein the raw materials comprise 22%-70% of silicon and the balance aluminum by weight; S2, smelting the raw materials to obtain aluminum-silicon alloy melts with different silicon contents; S3, preparing aluminum-silicon alloy powder with different silicon contents with the aluminum-silicon alloy melts obtained in the S2 through gas atomization separately; S4, preparing the aluminum-silicon gradient material in the design shape with the aluminum-silicon alloy powder with different silicon contents obtained in the S3 through a selective laser melting technology; and S5, performing heat treatment to the aluminum-silicon gradientmaterial obtained in the S4. The invention further relates to the aluminum-silicon gradient material prepared with the method. The method stated in the invention has the advantages of high designability, simplification of working procedures, high utilization rate of the material, high processing accuracy and the like; and the gradient material stated in the invention is high in designability, andapplicable for electronic packaging shells.

The invention discloses a permanent-magnet wind-driven generator capable of realizing self-acceleration of a magnetic field. The generator comprises a rotor (1), an air gap (2) and a stator (3) which are arrayed coaxially from outside to inside, and the air gap (2) is reserved between the rotor (1) and the stator (3). The rotor (1) comprises a plurality of rotor cores (11) and rotor permanent magnets (12), wherein the rotor cores (11) are equidistantly arrayed at intervals, and each rotor permanent magnet (12) is embedded into each two adjacent rotor cores (11). The stator (3) comprises a stator yoke (31), a plurality of stator teeth (32) and multiphase symmetrical armature windings (33), wherein the stator yoke (31) is coaxial to the rotor (1), the stator teeth (32) project over the periphery of the stator yoke (31), a stator inter-tooth space is arranged between each two adjacent stator teeth (32), and the multiphase symmetrical armature windings (33) are embedded into the stator inter-tooth spaces. The permanent-magnet wind-driven generator realizes self-acceleration of the magnetic field by means of magnetic field modulating action of the stator teeth, a stator structure is simple, the armature windings are convenient to wind, the rotor is low-speed, high-torque and high in direct-driven capability, and accordingly the permanent-magnet wind-driven generator is applicable to the low-speed and high-torque fields of wind-driven generation and the like.

The invention discloses a low-consumption low-minor lobe high-gain planar frequency scan antenna, which comprises three layers of planar dielectric substrates that are overlapped, wherein gaps are formed among the three layers of planar dielectric substrates; the three layers of planar dielectric substrates are fixed by plastic screws; the first layer of planar dielectric substrate comprises an antenna radiating element and a floor; the upper surface and the lower surface of the second layer of planar dielectric substrate are symmetrically arranged; the second layer of planar dielectric substrate comprises a slow-wave serpentine curve structure, a power divider, a transmission line feed structure and a matched load; the terminal of the slow-wave serpentine curve structure is connected to the matched load; the slow-wave serpentine curve structure is connected with the power divider; the transmission line feed structure is connected with the power divider; and the third layer of planar dielectric substrate is a floor. The antenna is low in consumption, and minor lobe, high in gain, simple in structure and convenient to implement.

The invention discloses an array substrate, a manufacturing method thereof, a display panel and a manufacturing method thereof. A first active layer manufactured from a metal oxide is used in a display area on the array substrate, so that the off-state current of a formed first switch transistor is relatively low, the metal oxide through fabrication processing can become into a microcrystal state from an amorphous state, and the stability of the first switch transistor is improved; and moreover, a second active layer manufactured from a polycrystalline silicon material is used in a surrounding area on the array substrate, so that a formed second switch transistor has relatively high electron mobility and relatively high drive capability and is applicable to constructing a drive circuit, and the requirement of an integrated drive circuit design in the surrounding area on the array substrate is met. In conclusion, the active layers of the switch transistors manufactured from the metal oxide and the polycrystalline silicon are used in the display area and the surrounding area on the array substrate respectively, so that the structural design of the array substrate is optimized, the display effect of the display product is guaranteed, and the product yield is improved.

The invention relates to an indicating lamp for field operations, comprising a lamp body and a signal indicating part as well as an upspringing device arranged between the lamp body and the signal indicating part, wherein the bouncing device is used for upspringing the signal indicating part under the action of external force to raise the effective height of the signal indicating part. The upspringing device is arranged between the lamp body and the signal indicating part and is used forupspringing the signal indicating part under the action of the external force to raise the effective height of the signal indicating part so that the indicating lamp has less occupied space and can also change and adjust the height as required. When the indicating lamp is used for indicating in the field operations, the height is enlarged so that the indicating lamp is not interfered by barriers and weeds, thereby enhancing the action of indication, meeting the requirements of design and saving space and materials.

The invention discloses a backlight source frame, a backlight source structure and a liquid crystal display device. The backlight source frame includes a frame body and a plurality of limit structures arranged outside the frame body. One end of the limit structures is connected to the frame body. In the peelable connection, the other end is provided with a limiting portion, and the limiting surface of the limiting portion is coplanar with the side surface of the frame body and is located above the side surface of the frame body. In the present invention, a peelable limit structure is provided on the frame body of the backlight source frame, and the limit structure is used to limit the position of the display elements that need to be formed on the frame body when assembling. It can bring convenience of operation to the staff; the peelable setting of the limit structure does not increase the width of the frame body, and can meet the needs of narrow frame design.

The invention provides a MEMS deep silicon etching method, which belongs to the technical field of deep silicon etching. The technical solution is: a MEMS deep silicon etching method, including deposition steps, cleaning steps, etching steps, purging steps, repeated deposition steps, repeated cleaning steps, repeated etching steps and repeated purging steps, after several The deposition step, cleaning step, etch step and purge step are side-circulated, and the sample is out of vacuum. The beneficial effects of the present invention are: the deep silicon etching method of the present invention can be applied in the industrial manufacturing environment of large-scale integrated circuits, in particular, it can enable the sensor element to maintain the integrity of the device during long-term etching, and It can meet the needs of device design, adding a purge step can reduce the temperature of the vacuum reaction chamber and the sample stage, so that the vacuum reaction chamber can be kept in a constant range, which helps to provide the uniformity of large-scale samples after etching and the roughness of the sidewall of the MEMS device.

The invention is a waterproof and antibacterial zipper, comprising a chain belt and a fastener element arranged on the fastener belt, the fastener element is correspondingly provided with a slider, the fastener element is made of fluorosilicone resin material, and the fastener belt includes a main body and a deposition layer outside the main body. The head clamps the fastener elements on both sides; the preparation method of the zipper includes: step 1: using silicon dioxide and polydimethylsiloxane composite material to make two chain belts, and using fluorosilicone resin to make the fastener elements; step 2: processing On the surface of silica and polydimethylsiloxane composite materials, an interface chemical structure that is conducive to the deposition of nano-silver is obtained, and then metal nano-silver particles are deposited to grow on the surface of the chain belt, and the fastener elements are respectively fixed on the two sides of the chain belt. side to form a chain belt with fastener elements; step 3: the chain belt is equipped with a slider and a limit code to obtain a waterproof and antibacterial zipper. The waterproof and antibacterial zipper of the present invention has higher waterproof strength and service life, and better antibacterial performance.