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105results about How to "Size effect" patented technology

Video frequency communication system with sound position information and its obtaining method

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.
Owner:HUAWEI TECH CO LTD

First-time charging forming method for lithium-ion secondary battery

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.
Owner:湖北力莱科技有限公司

Current detecting circuit, load drive, and storage

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.
Owner:ROHM CO LTD

Volute fan combined structure and vertical air conditioner

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.
Owner:GREE ELECTRIC APPLIANCES INC

Manufacturing method of phase-changing random access memory

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.
Owner:SEMICON MFG INT (SHANGHAI) CORP +1

Machining drilling device facilitating distance adjusting

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.
Owner:徐州华涛电气设备有限公司

Segmentation and localization method for two overlapped fruits based on chromatic aberration

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.
Owner:CHONGQING UNIV OF TECH

Heat exchanger

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).
Owner:PANASONIC CORP

Renewable concrete building solid waste separation device

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.
Owner:NANCHANG HANGKONG UNIVERSITY +1

Novel drive system for use with an insulin delivery device

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.
Owner:ANIMAS CORP

Tubular insertion device

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.
Owner:OLYMPUS CORP

Linearization device and linearization method in broad-band communication system

ActiveCN101547178AEliminate memory nonlinear distortionImproved speed of distortion removalMulti-frequency code systemsSynchronous/start-stop systemsTime domainAdaptive filter
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.
Owner:XIAN CETC XIDIAN UNIV RADAR TECH COLLABORATIVE INNOVATION INST CO LTD

Towed array calibration device and calibration method thereof

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.
Owner:INST OF ACOUSTICS CHINESE ACAD OF SCI

Spiral-type variable-cross-section micro fluidic PCR chip, and manufacturing method thereof

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.
Owner:NAT UNIV OF DEFENSE TECH

Photovoltaic welding strip production system with high optical utilization ratio and method of photovoltaic welding strip production system

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.
Owner:杭州萧山江海实业有限公司

Measuring method for thermal contraction of electronic glass for high resolution display

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.
Owner:IRICO DISPLAY DEVICES

Bearing inner ring with V-shaped narrow oil groove and processing method

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.
Owner:AVIC HARBIN BEARING

Semiconductor structure and formation method thereof

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.
Owner:SEMICON MFG INT (SHANGHAI) CORP +1
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