105results about How to "Size effect" patented technology

This invention discloses a video communication system with sound position information including multiple microphones used in collecting multiple sounds, a camera head receiving control orders to rotate or regulate focus and a processor connected with the camera head and multiple microphones, in which, the processor computes the position information of the sound source based on the phones collected by the microphones and regulates the position information of the source based on the control information of the camera head, which solves the problem of non-match of the speaker position and the collected sound orientation information.

The invention discloses a display method, a device and a system of multiple terminal screens, and relates to the technical field of communication. The technical problems that a screen is not convenient to carry if being too large and the display effect is influenced if the screen is too small in the prior art are solved. The method mainly includes the steps of building connection with a plurality of wireless terminals spliced with the screens, obtaining display adjustment information, displayed on the wireless terminals in a splicing mode, of multimedia images according to a connection building result, and sending the display adjustment information and the multimedia images to the wireless terminals. The method is mainly used in display application of the wireless terminals.

The invention belongs to the technical field of lithium-ion secondary batteries, and in particular relates to a first-time charging forming method for a lithium-ion secondary battery. The method comprises the following steps that: carrying out aging treatment on the lithium-ion secondary battery poured with electrolyte, then gradually increasing the charging current to carry out a sectional charge formation on the battery in the state of negative pressure, and sealing the battery when the voltage reaches 3.6 volts; and carrying out aging treatment on the battery, carrying out constant-current charging to 3.8-4.0 volts at a rate of 0.5 C-1 C, then carrying out constant-current charging to 4.2 volts at a rate of 0.2 C-0.5 C, and carrying out constant-voltage charging in the state of 4.2 volts at last. Compared with the prior art, the invention adopts the method of sectional charge formation to charge the battery to 3.6 volts firstly, so as to exhaust the harmful gas produced in the process of forming SEI (solid electrolyte interface), ensure the migration of Li<+> better, enable the formed SEI to be more uniform, stable and compact, and thus improving the cycling performance and high rate discharging performance.

The invention relates to a page display method and device and electronic equipment. The method includes the steps of detecting a moving trigger event for a display page on a terminal screen; determining the moving direction and the moving step length of the display page according to the moving trigger event; splitting the display page into a first subpage and a second subpage at the front end of the first subpage in the moving direction, wherein the width of the second subpage in the moving direction is the moving step length; moving the display position of the first subpage in the moving direction by the moving step length, and moving the second subpage in the direction opposite to the moving direction by the difference between the length of the terminal screen in the moving direction and the moving step length. According to the technical scheme, one hand operation can be conducted on a large-screen terminal conveniently and rapidly.

A current detecting circuit for stably detecting the current flowing through a load at all times with high accuracy by greatly reducing the power loss due to the detection of the current. The power supply voltage and a switch signal are supplied commonly to a power transistor and a current detecting transistor. An idling current is supplied to the output node of the current detecting transistor. A buffer circuit is provided so that the output voltages of both transistors may be the same virtual potentials. As a result, the buffer circuit is operated as a class-A amplifier circuit at all times.

The invention discloses an H.264 compression bit stream oriented video watermark method. The method comprises the following steps of: generating an authentication code according to a predictive mode of a 4*4 brightness block in an I film; and embedding the authentication code in the film-grade bit stream by modulating variable-length code words of some motion sub-blocks of a B film and a P film, wherein the modulation is performed based on a mapping rule between the variable-length code words and the bits to be embedded, and the mapped variable-length code words is extremely similar to the original variable-length code words. Because in the method, the video bit stream is unnecessarily pre-processed, and comparison and replacement operations are performed by selecting the proper variable-length code words only from the H.264 / AVC compression bit stream in the watermark embedding process without a huge number of operations, so that the method has the advantages of low computing complexity, high safety and high practicability, and can better meet the requirements of the real-time video processing.

The invention provides a volute fan combined structure which mainly solve the problem how to reduce influences of volutes of two volute fans at two ends on air outflow of a middle volute fan in an air supply device provided with the three volute fans. The structure comprises an installation plate and at least two adjacent volute fans installed on the installation plate. One of the two adjacent volute fans is provided with a middle oblique air outlet located between the two adjacent volute fans, and the middle oblique air outlet obliquely extends in the direction away from a volute of the volute fan provided with middle oblique air outlet from back to front. The second volute fan, the first volute fan and the third volute fan are arranged on the installation plate in a staggered mode so that an air outlet of the second volute fan, the first volute fan and the second volute fan can be staggered, and interference is reduced. The invention further aims at providing a vertical air conditioner.

The invention belongs to the field of medical image processing and application, and provides a retinal vascular tortuosity calculation method based on an ophthalmoscope image and an application thereof. Firstly, a digital ophthalmoscope is used for obtaining an eye fundus image for screening the crowd, and a non-subsample discrete wavelet transform (UDWT) is then used for enhancing the image; secondly, local entropy texture of a retinal gray image is extracted, and a fuzzy C-mean clustering (FCM) method is used for segmenting a retinal vessel; and thirdly, the segmented vessel is skeletonized, topological levels of the skeleton are calculated, and a tortuosity calculation model in the invention is used for tortuosity calculation of the vascular skeleton. The method provided by the invention is easy to implement, accurate, reliable and convenient in clinical application.

The invention provides an integrated circuit memory, a forming method thereof and semiconductor integrated circuit device. The integrated circuit memory adopts a vertical memory transistor formed by active cylinders which are vertically arranged on a substrate, thereby being conductive to reducing unit configuration size of the vertical memory transistor on the substrate, and being capable of further reducing the size of the memory; in addition, the vertical memory transistors of a vertical structure have better arrangement flexibility, for example, hexagonal dense arrangement of a plurality of the vertical memory transistors can be realized to increase the arrangement density of memory cells in the memory. Moreover, the active cylinders adopted in the integrated circuit memory are of a structure with wide upper part and narrow lower part, such that the portion surrounding the bottom end parts of the active cylinders of a word line have large thickness, thereby being conductive to improving the performance of the vertical memory transistor.

The invention relates to a manufacturing method of a phase-changing random access memory, comprising the following steps: providing a semiconductor substrate at least provided with a memory region, a peripheral circuit region and a plurality of polysilicon plugs connected with the memory region and the peripheral circuit region; etching the polysilicon plugs; performing ion implantation to the polysilicon plugs; filling a sacrifice electrolyte layer on a vertical diode; removing the sacrifice electrolyte layer filled on the vertical diode in the peripheral circuit region; removing the vertical diode of the peripheral circuit region; forming metallic plugs in plug holes of the peripheral circuit region; removing the sacrifice electrolyte layer in the plug holes in the memory region; and filling the phase-changing memory material in the plug holes in the memory region. Compared with the prior art, the plug hole in the memory region are filled by the sacrifice electrolyte layer, so, in the manufacturing process of the device, the metallic plugs cannot form in the plug holes in the memory region, thereby conquering the problem of short circuit. etc caused by the residual metal when removing the metallic plugs in the plug holes in the memory region.

The invention discloses a machining drilling device facilitating distance adjusting. The machining drilling device comprises a bearing sheet, a drilling platform and a collection box, the lower surface of the bearing sheet is fixedly provided with supporting legs, the upper surface of a slider is fixedly provided with a vertical rod, a first motor is fixed to the inner side of the upper surface ofa cantilever arm, a connecting shaft passes through the right end of the cantilever arm, a cylinder is installed above the right end of a swing arm, and the lower surface of the right end of the swing arm is fixedly provided with a protective shell; and a piston is installed on the inner side of an inner cylinder, movable blocks are fixed at the left and right ends of the lower surface of the drilling platform, and the collection box is clamped and connected to the upper surface of the bearing sheet. By means of the machining drilling device facilitating distance adjusting, the position of adrill bit above the drilling platform can be conveniently and quickly changed, drilling by the drill bit at the different positions of parts is facilitated, the parts in the different sizes are effectively and conveniently fixed, and vibration generated during drilling is reduced.

The invention relates to a segmentation and localization method for two mutually overlapped fruits in picking the fruits, and is particularly suitable for the quasi-circular fruits of which the fruit color and the background color have large chromatic aberration. The segmentation and localization method for the two overlapped fruits based on chromatic aberration comprises the steps that an original image Io of only two fruits are mutually overlapped is inputted and binarization is performed so that a binary image IS with the fruit area acting as a target area is obtained, then the minimum external affine rectangle of the target area, a target rectangle and two ROI subareas are successively selected on the binary image IS, a segmentation line dividing the target rectangle into two quadrilateral areas is obtained by connecting the central points of the two ROI subareas, and then the positions of the two fruits are determined by determining the centers of gravity of the two quadrilateral areas; and finally a circle is drawn with the centers of gravity of the two quadrilateral areas acting as the centers of circle and the distance from the two centers of gravity to any one intersection point of the segmentation line and the target rectangle acting as the radius, and the two circular areas are judged as the areas of the two fruits.

A heat exchanger of small size and thin type is provided. It includes a machine body (1), an indoor suction port (3) for sucking indoor air (2), an indoor diffuser (4), an outdoor suction port (7) for sucking in outdoor air (6), an outdoor diffuser (8), a motor (11) provided inside the machine body (1), an exhaust blade (9) and an intake blade (10) disposed at the motor (11), an exhaust fan casing (12) provided around the exhaust blade (9), an intake fan casing (13) provided around the intake blade (10), and a plurality of heat exchange elements (16) disposed around the exhaust fan casing (12) and intake fan casing (13).

The invention provides an environment-friendly sapphire film deplating solution and a using method thereof. The deplating solution is a water solution containing alkali compounds, inorganic auxiliary agents and water stabilizer. Compared with the prior art, the environment-friendly sapphire film deplating solution and the using method have the advantages that the inorganic auxiliary agents have high permeability and complexing effect on a film, the deplating ability of a product is made to be higher and more thorough, and a very good deplating effect can be achieved just by conducting soaking or spray contact; deplating is even, the size of a sapphire wafer is not affected, and point corrosion cannot be caused on a workpiece; the depalting time is short, machining time is saved, the depalting solution is easy to process after being used, and no influences are caused to the environment.

The invention relates to a mechanical production process, in particular to a production and material processing process for a solenoid valve core. A machining process for a precise solenoid valve core comprises the following steps: blanking, primary forging and pressing, secondary forging and pressing, third-time forging and pressing, extrusion for removing burrs, thermal refining, milling, drilling, reaming, extruding, turning, grinding and surface grinding. The invention provides a machining process for the precise solenoid valve core, which is good in manufacturability and high product percent of pass, and the produced valve core is high in size dimension and excellent in mechanical properties.

The invention discloses an active gas generation process and apparatus, wherein a medium blocking discharging mode is employed for electrical discharge, an air supplying duct is arranged around the discharging area for the medium blocking discharge, groove shape or porous air supplying openings are arranged on the side walls of the air supply duct with the air supply direction facing the discharge zone of the air supply port, a working gas is injected into the air supply duct which flows through the discharge zone for producing plasma and reactive neutral particles, the active gas containing the reactive neutral particles flows out of the discharge zone along with the air flow, finally arriving the surface of the processed work piece.

The invention discloses a renewable concrete building solid waste separation device. The renewable concrete building solid waste separation device comprises a crusher, a magnetic separator and a screening separator; the crusher is used for crushing building solid waste into solid particles and powder; the magnetic separator is used for separating metal materials such as metal screws in the solid waste through magnetic separation; and the screening separator is used for separating the metal materials from the solid waste through magnetic separation; the screening separator is used for screeningand separating solid particles and powder, so that classification and recycling are facilitated; the crusher communicates with the magnetic separator through a first conveying belt; and the magneticseparator communicates with the screening separator through a second conveying belt; By arranging the crusher, the magnetic separator and the screening separator, metal materials, solid particles andpowder in construction waste can be screened and separated after the construction waste is crushed, so that the construction waste is conveniently classified and recycled; resource utilization rate isincreased, and the renewable concrete building solid waste separation device is more energy-saving and more environment-friendly; and a dust falling device is arranged, so that dust falling can be conducted on a construction site through spraying, and the construction environment is improved.

This invention provides a novel device system for use with an insulin delivery device. A liquid infusion device is a separate type and is easy for the patient to use. Specifically, the liquid infusion device, comprising a flexible drive tape having a plurality of holes aligned essentially linearly along the length of the drive tape, the plurality of holes spaced apart at a fixed increment; a drive shaft comprising at least one gear, the gears comprising a plurality of teeth that align and engage the holes in the flexible drive tape, a piezoelectric motor for advancing the flexible drive tape; a plunger attached to or in communication with at least one end of the flexible drive tape, and a cartridge for containing a liquid medication for receiving the plunger and expelling the liquid medication upon movement of the plunger in the cartridge, wherein the piezoelectric motor turns the drive shaft, thereby advancing the flexible drive tape and driving the plunger into the cartridge in an increment correlating to the fixed increment between holes.

A tubular insertion device includes a tubular insertion portion including a flexible portion in a predetermined part, bending sensors distributed and arranged in the flexible portion, and an operation support information calculating unit. The operation support information calculating unit extracts operation support information including at least first external force information regarding an external force applied to the tubular insertion portion by a combinational calculation based on detection information from the bending sensors.

The invention discloses a preparation method of glucan microsphere gel. The method comprises the following steps: respectively preparing a dispersion phase glucan solution and a continuous phase solution; adding the dispersion solution to the continuous phase solution in a dropwise manner at a uniform speed, and fully emulsifying the obtained mixture by using a homogeneous emulsifying device; and adding a cross-linking agent, and mechanically stirring to fully cross-link the mixture in order to prepare the glucan microsphere gel. The glucan microsphere gel selects common domestic raw materials, has the advantages of low price, short supply period, simple process, large scale production, and no safety production or environment pollution hidden troubles, can be widely applied to different detection technologies, especially greatly promotes domestic popularization and application of micro-column gel detection technologies, and improves the medical level.

The invention discloses a linearization device with a memory nonlinear amplifier and a linearization method in a broad-band communication system. The linearization procedure is as follows: using a frequency domain dresser, a time domain dresser and a self-adaptive filter to respectively carry out frequency domain dressing, time domain dressing and filtering processing for transmitting signals and amplifying the dressed signals: attenuating the amplified signals to the electrical level before amplification and feeding back the signals and using feedback signals and input signals to respectively update filter tap coefficient, a time domain checking table and a frequency domain checking table; repeating the above steps to continually update the frequency domain checking table, the time domain checking table and the filter tap coefficient and then carrying out frequency domain dressing, time domain dressing and filtering processing for generated transmission signals by utilizing the updating value of the filter tap coefiicient, the dressing value of the time domain dresser and the dressing value of the frequency domain signal dresser; repeating the operation again and again till realizing the linearization function of an amplifier in a broad-band OFDM system. The invention has the advantages of high convergence speed, high convergence precision and high degree of linearization.

The invention provides a towed array formation calibration device and a calibration method. The towed array formation calibration device comprises an inverted-T transmission array, a receiver and a formation calibration computing unit, wherein the inverted-T transmission array is mounted on a carrier platform or a towed platform, which comprises two horizontal transmission energy exchangers and a depth detection transmission energy exchanger; the depth detection transmission energy exchanger is arranged on the perpendicular bisector of the connecting line between the two horizontal transmission energy exchangers; the three transmission energy exchangers are used to transmit test signals orthogonal to each other; the receiver is arranged in multiple positions in the towed array for receiving the orthogonal test signals at each position and transmitting the signals to the formation calibration computing unit; and the formation calibration computing unit calculates the relative positions among the receivers, to obtain the formation of the towed array. The invention further provides a relative calibration method. The invention has the advantages that the towed array formation calibration device and the calibration method overcome the effect of on-array calibrator the size of towed-array and confirm the time delay accuracy of calibration.

The invention relates to a high-definition projection paint composition which is characterized by containing the following components in percentage by weight: 1-10 parts of silicon dioxide micro particles, 1-10 parts of stannic oxide micro particles, 30-60 parts of an adhesive, 1-2 parts of a dye leveler, 1-2 parts of a defoaming agent and the balance of a solvent. By adopting a spraying mode, a high-definition screen is simply formed, the high-definition screen is applied to a transmission type light beam projector and a reflection light beam projector, a piece of screen cloth is not additionally needed, and projection can be carried out very easily at any place. By adopting the high-definition paint provided by the invention, the high-definition screen can be rapidly formed with simple operation at any place, and in addition, the size of the projection screen is not affected by other factors and is only determined according to the size of a transparent plate.

The invention discloses a later-stage processing method of fabric and special equipment thereof. The special equipment comprises one or a plurality of cylinders, an expander and an ironing machine which are arranged in sequence along the running direction of the fabric, wherein an inlet device and an outlet device are arranged at the inlet and outlet of each cylinder respectively; each inlet device and each outlet device respectively comprise an upper pressurized water roll, a lower pressurized water roll and a power device used for driving the pressurized water rolls; a sponge water absorbing roll is adopted as the pressurized water roll of the final outlet device; the ironing machine comprises a first rotary drum and a second rotary drum the gear ratios of which can be adjusted; and the expander takes the shape of an inverted trapezoid, and is arranged on a conveyer belt at the feeding port of the first rotary drum of the ironing machine. The special equipment disclosed by the invention can be used for simultaneously processing elastic fabric and non-elastic fabric, and the processed elastic fabric has flat and smooth surface and good elasticity.

The invention provides a spiral-type variable-cross-section micro fluidic PCR chip, and a manufacturing method thereof. The spiral-type variable-cross-section micro fluidic PCR chip comprises a reaction system and a temperature control system; the reaction system comprises a base sheet and a cover sheet connected via bonding; a base sheet channel is arranged in the base sheet; the base sheet channel comprises a constant cross section channel and a spiral-type variable-cross-section channel; the spiral-type variable-cross-section channel is designed to be spiral taking the center of the base sheet as the circle center; the size of the cross section of the spiral-type variable-cross-section channel is reduced gradually with increasing of the length. The spiral-type variable-cross-section micro fluidic PCR chip is small in size, is portable, is capable of realizing high degree integration of a plurality of PCR reaction auxiliary equipment. According to the spiral-type variable-cross-section micro fluidic PCR chip, the base sheet can be divided into three temperature zones; three temperature zone constant temperature independent control is adopted by the temperature control system, andthe uniformity control of the temperature zones is improved using thermal conductive elements, so that requirements of the PCR reaction on high speed accurate temperature increasing and reducing control of the temperature control system can be reduced.

The invention relates to the field of bearing test devices, in particular to a bearing test device. The bearing test device comprises a radial loading mechanism and a test head assembly; the test head assembly comprises a left lining, a right lining and a radial loading sleeve which abuts against the radial loading mechanism in a matched manner; and at least two radiating holes of the radial loading sleeve, which are peripherally formed along the radial loading sleeve, are formed in the radial loading sleeve. The bearing test device solves the problem that a radiating structure of an existing bearing test device cannot be suitable for the bearing test device of a micro bearing.

The invention discloses a photovoltaic welding strip production system with high optical utilization ratio and a method of the photovoltaic welding strip production system. The photovoltaic welding strip production system comprises a drawbenching machine, wherein the drawbenching machine is used for drawbenching a copper wire raw material, a wire outlet end of the drawbenching machine is connectedwith a wire inlet end of a calender, a wire outlet end of the calendar is connected with a feeding hole of an annealing furnace, a discharging hole of the annealing furnace is connected with a material inlet end of a cleaning machine, a tin plating machine is arranged at a right side of the cleaning machine, a winding machine is arranged at a discharging hole of the tin plating machine, and the drawbenching machine, the calender, the annealing furnace, the cleaning machine, the tin plating machine and the winding machine are sequentially connected by a conveying belt. By the photovoltaic welding strip production system, the problem that the copper strip can be bent caused by tin plating on the copper strip by a traditional tin plating machine in the prior art is solved. The photovoltaic welding strip production system has the advantages of novel and reasonable design, high working reliability, long service lifetime and the like, and the quality and the performance of a product are improved.

The invention provides a measuring method for thermal contraction of electronic glass for high resolution display. The measuring method comprises the following steps: 1) taking a to-be-measured glasssample, carving two shape marks on the to-be-measured glass sample along the length direction and respectively marking as A and B; 2) measuring a distance between the mark A and the mark B, thereby acquiring the distance L0 before heat treatment; 3) putting the to-be-measured glass sample with the marks acquired in the step 1) into a heating device for heating; 4) measuring the distance between the mark A and the mark B after heat treatment, thereby acquiring the distance L; 5) calculating a thermal contraction rate a of the to-be-measured glass sample according to the acquired distance L0 anddistance L. According to the measuring method provided by the invention, the problem of big measuring error caused by the marking depth difference introduced by the marking of abrasive paper or glasscutter or the influence of load on length in the measuring process with a dilatometer can be solved, the measurement accuracy is promoted, the repeatability is excellent and a data reference can be more effectively provided to the manufacturing technique of display devices.

A bearing inner ring with a V-shaped narrow oil groove and a processing method relate to a bearing inner ring with a V-shaped narrow oil groove and a processing method. The problem that a dry run space of a narrow oil groove obtained by an existing processing method is small is solved. A section of the narrow oil groove in the bearing inner ring is V-shaped, and an included angle is 26-26.5 degrees. The included angle of a cutting edge in the CBN blade structure in a special turning tool is 26-26.5 degrees, and the method comprises the following steps of lathing a bearing ring blank; performing heat treatment; coarsely grinding and demagnetizing; performing complementary tempering; finally grinding, namely, finely grinding an inner diameter; hard-turning the oil groove, washing with acid and dehydrogenating, buffing and flanging, flanging and finally grinding the inner diameter; finely finishing, performing fluorescent magnetic powder flow detection; coarsely lapping, finely lapping, demagnetizing, cleaning, performing laser typing, and submitting. The V-shaped oil groove disclosed by the invention has higher dry run space, and can meet the subsequent processing demands of roller paths, flanges and the like. The special turning tool and the processing method ensure the qualification rate of products. The processing method disclosed by the is suitable for processing the bearinginner ring.

The invention relates to a semiconductor structure and a formation method thereof. The formation method comprises the steps of providing a substrate comprising a first region and a second region and fin portions protruding out of the substrate, wherein a part of the fin portions are located in the first region, the fin portions located in the first region are first fin portions, another part of the fin portions are located in the second region, and the fin portions located in the second region are second fin portions; forming a first isolation layer which covers part of the first fin portions and a second isolation layer which covers the second fin portions at the surface of the substrate between the fin portions, and the top of the first isolation layer is lower than the top of the second isolation layer; doping the second fin portions, and forming an active region resistor inside each second fin portion. According to the invention, the second fin portions are protected through forming the second isolation layer covering the second fin portions at the substrate surface between the second fin portions, and the second fin portions are avoided from being consumed because of being exposed in a process environment of the first fin portions, so that influences imposed on the size of the second fin portions by the process of the first fin portions are avoided, and thus the performance of active region resistors of an FinFET is improved.