99results about How to "Increase space distance" patented technology

The invention discloses a frequency detection principle-based two-axis resonant silicon micro-accelerometer, which consists of an upper layer and a lower layer. The upper layer is an accelerometer mechanical structure manufactured on a monocrystalline silicon slice; the lower layer is a signal lead manufactured on a glass substrate; the accelerometer mechanical structure consists of a mass block, an outer frame, two pairs of identical resonators and eight identical first-stage lever amplification mechanisms; the mass block is positioned in the middle of the structure; one pair of resonators is symmetrically arranged on the upper and lower sides of the mass block and is used for measuring acceleration input along a y axis; the other pair of resonators is symmetrically arranged on the left and right sides of the mass block and is used for measuring acceleration input along an x axis; and the whole structure is centrosymmetric. The micro-accelerometer is not required to be supported by a supporting beam, so that the structure is simplified; and the micro-accelerometer has a stable structure, and inertia force converted from the acceleration is effectively transferred to the resonators simultaneously.

The invention discloses a silicon micro-resonant accelerometer which comprises an upper layer and a lower layer, wherein the upper layer is an accelerometer mechanical structure manufactured on a single-crystal silicon wafer, the lower layer is a signal lead manufactured on a glass substrate, the accelerometer mechanical structure comprises a mass block, an outer frame, two resonators, four primary leverage amplification mechanisms, two rigid rods and two guide mechanisms, a first resonator and a second resonator are symmetrically arranged at the upper side and the lower side of the mass block, one end of either resonator is connected with the outer frame, and the other end is connected with the guide mechanism; and the mass block is connected with the outer frame by four multi-folded beams, and the outer frame enables the mechanical structure part at the upper layer to suspend above the glass substrate part at the lower part by means of four fixed bases which are symmetrical with the center of the mass block. The invention greatly reduces the influence of residual machining stress and heat stress produced by the temperature change of the working environment on the vibration frequency of the structure, improves the stability of the resonant frequency of the resonator and reduces the temperature coefficient of frequency.

The present invention provides a stimulated Brillouin effect-based differential temperature sensor. The continuous light generated by a light generating unit is subjected to a first modulation amplifier unit to obtain a signal containing the Stokes light and the anti-Stokes light. After that, the signal is subjected to a second modulation amplifier unit to generate a phase modulated signal. The modulated signal is subjected to a filter, so that the Stokes light and the anti-Stokes light are filtered out. The Stokes light passes through a delay optical fiber to be integrated with the anti-Stokes light as one path of optical signals through a 3 dB coupler. The path of optical signals is subjected to a polarizer, so that the polarized light can be extracted. The extracted polarized light is subjected to a third modulation amplifier unit to obtain the pumped pulse light. The pumped pulse light is injected into the initial end of a sensing optical fiber. The detection light of the other path is infiltrated through the tail end of the sensing optical fiber via a scrambler instrument and an isolator. Inside the optical fiber, the detection light forms a circulator together with the pumped pulse light under the stimulated Brillouin effect, and then is converted into an electric signal through a photoelectric detector. According to the technical scheme of the invention, the temperature resolution and the sensing distance are higher on the premise that the high spatial resolution is realized.

The invention discloses hyperglycosylated human growth hormone fusion protein. The human growth hormone fusion protein sequentially contains a human growth hormone (hGH), a flexible peptide joint (L), human chorionic gonadotropin beta-carboxyl terminal rigid peptide (CTP) and a human immunoglobulin Fc fragment from the N terminal to the C terminal. The invention further discloses a method for efficiently preparing the fusion protein. Compared with a recombinant hGH, the built fusion protein has more excellent in-vivo drug efficacy, the in-vivo circulation half-life period is prolonged, the administration frequency is greatly decreased, and the bioavailability is improved; meanwhile, the production process is simpler and more efficient.

The invention relates to an electrostatic spinning method and device with a constant electric field. The electrostatic spinning method with the constant electric field comprises the following steps of: performing electrostatic neutralization on a film surface when the electrostatic spinning forms films, modularizing the electrostatic spinning, appropriately adding the space distance between modules, and adding a strong ion air knife between module so as to reduce or eliminate the static electricity accumulation caused by electrostatic spinning in large scale; and adopting a device module with a special mechanical combination structure formed by combining porcelain and metal, embedding the device module between an insulation main body and a frame, between the insulation main body and a driving system, and between a control system and a controlled insulation main body through the mechanical structure connection requirements of the corresponding equipment, and enabling the device module and the corresponding equipment to be fully insulated under the condition of guaranteeing the mechanical structure connection requirements of the corresponding equipment.

The invention discloses a ferrocene group-containing aniline derivative polymer. The ferrocene group-containing aniline derivative polymer is a homopolymer shown in the formula (II) or a copolymer shown in the formula (III). The invention discloses a preparation method of the ferrocene group-containing aniline derivative polymer and a monomer which is used for preparation of the ferrocene group-containing aniline derivative polymer and is shown in the formula (I). The ferrocene group-containing aniline derivative polymer can be used as a lithium ion battery positive pole material.

The invention provides a total field measuring method and device based on a superconducting quantum interferometer.Thetotal field measuring method comprises the steps that non-orthogonality, sensitivity and zero offset calibrations are carried out on a high-sensitivity triaxial SQUID magnetometer; the three-axis SQUID magnetometer measures the magnetic field component in a to-be-measured environment, and the corresponding high-sensitivity SQUID is reset after the magnetic field component value is greater than a preset threshold value, and then an operating point is re-locked;the flux change ofthe high-sensitivity SQUID during dead time is collected by using corresponding low-sensitivity SQUID to obtain the magnetic flux quantum jump number, thus the magnetic field component value measuredby the high sensitivity SQUID during the dead time is compensated to obtain an accurate magnetic field component value; and thetotal field is synthesizedbased on the accurate magnetic field componentvalue to obtain the total field in the to-be-measured environment. According to the total field measuring method and device based on the superconducting quantum interferometer, the problem of low detection accuracy in the total field measurement by using the three-axis vector fluxgate in the prior art is solved.

The invention provides a flat wire stator winding structure of a motor. The structure comprises a stator iron core with multiple stator grooves, and each phase of winding that is formed by winding a flat wire on the stator iron core, wherein each phase of winding comprises at least one winding unit, and each winding unit comprises a first U-shaped coil and a second U-shaped coil. In part of or allthe second U-shaped coils, all the second U-shaped coils are sequentially and continuously arranged along the circumferential direction of the stator iron core, and one of the second U-shaped coil isplaced on the inner side of the corresponding first U-shaped coil to form a first sub-unit. The flat wire stator winding structure of the motor mainly solves the problem that in the prior art the most consumed coils with different spans are greatly different in ratio, under the primes of ensuring that the conductors in the grooves are invariably divided according to the phase spread, and can improve the problem that the space between the coils at the end part of the non-welding side is tight.

The invention discloses a method for combined pulse speed measurement for an acoustic Doppler flow rate section plotter. An acoustic wave energy exchanger is adopted by the acoustic Doppler flow rate section plotter to serve as a sensor, scattering echoes are generated by sound wave pulses transmitted by the acoustic Doppler flow rate section plotter through an irregular scattering body in water, and after the scattering echoes are received by the acoustic wave energy exchanger, the radial water flow speed is obtained through analysis and processing. The method is characterized in that combined pulses serve as transmitting signals of the acoustic wave energy exchanger; after echo signals are received by the acoustic wave energy exchanger, the echo signals are multiplied by transmitted combined pulse signals; a result is analyzed through a low-pass filter wave and a following frequency spectrum, and therefore the radial flow speed needing to be measured is obtained.

The invention discloses a manufacturing method for a semiconductor device, including the following steps that: a grid electrode with a sidewall spacer is formed on a semiconductor substrate; the sidewall spacer comprises a silicon oxide layer and a silicon nitride layer; a source region and a drain region are formed inside the semiconductor substrate; moreover, metal silicides are formed on the surfaces of the grid electrode, the source region and the drain region; the silicon nitride layer arranged inside the sidewall spacer is removed; an etching stop layer is formed on the surface of the substrate comprising the grid electrode, the source region and the drain region; moreover, a medium layer is deposited on the surface of the etching stop layer. The invention can improve the filling quality of a PMD layer in the space between grid electrodes.

The invention provides an entity recognition method and device, equipment and a storage medium. The method comprises the steps of obtaining original threat intelligence texts; for each original threat intelligence text, marking each segmented word in the original threat intelligence text according to the entity type of the entity to which the segmented word belongs to obtain a training sample; and inputting the training sample into an entity recognition model, and training the entity recognition model by using each segmented word in the training sample and the entity mark corresponding to the segmented word to obtain a trained entity recognition model, wherein a loss function used by the entity recognition model in the training process is used for reducing the spatial distance between segmented words with the same entity mark and increasing the spatial distance between segmented words with different entity marks; and inputting to-be-recognized threat intelligence texts into the trained entity recognition model to obtain an entity recognition result. The recognition accuracy of specific types of entities in the threat intelligence field can be improved.

The invention provides a biological reaction device which replaces human kidney, consisting of a biological reactor, a peristaltic pump, a cell culture liquid constant-flow device and a constant temperature box; the biological reactor consists of a plastic shell, a pouring liquid inlet, a pouring liquid outlet, a cell culture liquid inlet, a cell culture liquid outlet, a sulfone film nanometer supporting layer and a hollow fiber pipe; the hollow fiber pipe is arranged in a concentric round; the peristaltic pump is connected with the pouring liquid inlet and the pouring liquid outlet of the biological reactor; the constant-flow device is connected with the cell culture liquid inlet and outlet of the biological reactor; the biological reactor, the peristaltic pump and the constant-flow device are arranged inside the constant temperature box; the biological reaction device has reasonable design and simple and convenient preparation, can replace the kidney function of acute renal failure and multiple organ dysfunction syndrome patient in long-term or leads the similar patients to gradually recover the self-kidney tissue and other functions, thus improving the survival rate of the multiple organ dysfunction syndrome patient and prolonging the survival time of the multiple organ dysfunction syndrome patients.

The invention discloses a tripping mechanism and a surge protection device equipped with the tripping mechanism. The tripping mechanism comprises a base, a push-off piece, a traction component, an interception piece and a blockage point, wherein an electrode connecting component of a to-be-tripped protective device is welded to an electrode connecting point of the to-be-tripped protective device through soldering tin; one end of the push-off piece is rotatably mounted on the base, and the other end of the push-off piece presses the electrode connecting component downwards through the tractionof the traction component; and the interception piece is rotatably mounted on the push-off piece, and the blockage point is fixed on the base. When the soldering tin on an electrode point is molten, the push-off piece which presses the electrode downward continuously presses and moves downwards under the continuous traction of the traction component so as to pull the interception piece to move therewith; and the interception piece is blocked by virtue of the blockage point and then rotates, one end of the interception piece can utilize the blockage force of the blockage point, and thus the relative other end of the interception piece is rotated towards the electrode to the space between the electrode point and the electrode.

A communications device includes a transmitter, a transmission processing device, a receiver, and a reception processing device. The transmission processing device assigns signal-space points within an I/Q signal space to digital signals, which include data values. The reception processing device assigns data values to signal-space points. The transmitter generates a transmission signal from signal-space points to be transmitted. The receiver determines received signal-space points from a received signal. The individual transmitted and received signal-space points provide in each case a smaller spacing distance from adjacent signal-space points than from the origin of the signal space.

An embodiment of the invention relates to the technical field of communication, and discloses a mobile phone antenna. The mobile phone antenna comprises a metal frame and a mainboard arranged in the metal frame; breakpoints are arranged on the metal frame; the breakpoints are used for dividing the metal frame into a plurality of sub-metal sections which are separated mutually; the plurality of thesub-metal sections at least include a first sub-metal section which forms a clearance area of a diversity antenna together with the mainboard, a second sub-metal section which forms a clearance areaof a three-in-one antenna together with the mainboard, and a third sub-metal section located between the first sub-metal section and the second sub-metal section and used for arranging a metal part ofa mobile phone; the first sub-metal section is a radiation body of the diversity antenna; and the second sub-metal section is a radiation body of the three-in-one antenna. According to the mobile phone antenna provided by the invention, while the performance of the antenna is improved and the space of the mainboard is saved, the cost of the mobile phone is reduced.

The invention discloses a synthesis method of calcium hydroxide with a high specific surface area, and belongs to the technical field of calcium hydroxide synthesis. A calcium chloride solution is dropwise added into a mixed solution of cetyl trimethyl ammonium bromide and liquid caustic soda to generate calcium hydroxide molecules, a crystallization phenomenon is generated after the concentration of calcium hydroxide in a system exceeds the saturation degree, in the synthesis process, cetyl trimethyl ammonium bromide is added to carry out in-situ modification on the product to prevent particle aggregation, Brownian motion is slowed down to effectively control the aggregate, in the post-treatment process of calcium hydroxide, self-made graphene modified carboxymethyl-beta-cyclodextrin is added, graphene modified carboxymethyl-beta-cyclodextrin is cross-linked to form a net structure, calcium hydroxide molecules are dispersed in the net structure, agglomeration among the molecules can be effectively prevented, in the applied deacidification gas reaction, the dispersity of binding sites of calcium hydroxide and acid gas is good, and the reaction is more efficient.