627results about How to "Avoid design" patented technology

Featured are systems, devices and apparatuses for use in minimally invasive surgical, diagnostic or therapeutic methods and / or techniques, in particular methods and / or techniques for a mammalian throat. In particular embodiments, a dexterity apparatus including one or more dexterity devices is featured, where each of the dexterity devices comprises surgical tools and each is configured and arranged with end-tip dexterity for enhanced manipulation. A portion of the dexterity devices is snake like, which is re-configurable (i.e., can be bent) so as to in effect maneuver the surgical tool and put the tool in a desired position with respect to the surgical site. Another portion of the dexterity device includes the surgical tool thereby providing the capability of performing surgical actions such as sewing, gripping, soft tissue manipulation, cutting and suction of saliva, blood and other materials from the surgical site.

Featured are systems, devices and apparatuses for use in minimally invasive surgical, diagnostic or therapeutic methods and / or techniques, in particular methods and / or techniques for a mammalian throat. In particular embodiments, a dexterity apparatus including one or more dexterity devices is featured, where each of the dexterity devices comprises surgical tools and each is configured and arranged with end-tip dexterity for enhanced manipulation. A portion of the dexterity devices is snake like, which is re-configurable (i.e., can be bent) so as to in effect maneuver the surgical tool and put the tool in a desired position with respect to the surgical site. Another portion of the dexterity device includes the surgical tool thereby providing the capability of performing surgical actions such as sewing, gripping, soft tissue manipulation, cutting and suction of saliva, blood and other materials from the surgical site.

Disclosed is a four-jawed combinational scissor-grasper surgical tool for use in laparoscopy. Cutting and grasping functionalities are respectively enabled via movement of a pair of such specially contoured jaw members sliding against or splaying apart from the other pair. Also disclosed are means for achieving selectable interlocking of jaw members and mechanical linkage for their actuation by human user.

The invention discloses an automatic focusing method of an optical imaging system. The method uses a set of digital imaging system comprising a CCD, an image collecting card, a zoom lens and a calculation display system. The method comprises: subjecting the image collected by the CCD to digitization treatment through the image collecting card; selecting a reasonable focusing window and subjecting the image to a pre-treatment stage; using software to program for coarsely focusing through selecting reasonable focusing criterion and using a focusing depth method, and finely focusing until an optimal focal plane is found out; and sending a control command to a singlechip through a program, driving a motor of the zoom lens to drive the lens to an optimal plane position for imaging, and displaying an optimal focal plane image through the window. During the coarse focusing, the step pitch of the selected control motor is large so as to reduce focusing time, and during the fine focusing, the step pitch of the selected control motor is small so as to reasonably control the error of the system.

The invention provides a low-Reynolds-number airfoil profile with cooperative fluidic control, and a control method thereof. The low-Reynolds-number airfoil profile with cooperative fluidic control is characterized in that an air jet port (2) is formed in the front edge of the upper surface of an airfoil profile body (1); an air suction port (3) is formed in the rear edge of the upper surface of the airfoil profile body (1); the air jet port (2) is communicated with the air suction port (3) through an air flow pipeline (5) which is arranged inside the airfoil profile body (1); an air pump (4) which is used for driving air suction and air jet to be carried out simultaneously is mounted in the air flow pipeline (5); moreover, the air jet port (2) and the air suction port (3) are perpendicular to the upper surface of the airfoil profile body (1) respectively. The lift of the airfoil profile is greatly increased, the resistance is obviously reduced, and the stalling characteristic of the airfoil profile is improved, so that the aim of efficiently improving the aerodynamic performance of an aircraft is achieved; in addition, the low-Reynolds-number airfoil profile also has the characteristic of low energy consumption.

A hearing instrument having an audio signal processing unit (16) for processing audio signals and a device (20) for vibrating at least one of the a user's eyeballs (22) in the audible frequency range according to the processed audio signals in order to stimulate the user's hearing sense.

The invention relates to a real three-dimensional display system and a display method; an image projection device in a case is connected with a motion display screen arranged above the case; a display area of the motion display screen is arranged on the top of the case; the motion display screen intercepts two-dimensional image flow projected by the image projection device at different positions of a Z axis; the two-dimensional image flow forms 1-N two-dimensional images at different positions of the Z axis; the motion display screen rotates at the rotating speed of 480 to 600r / min, so that the two-dimensional images which are continuously intercepted at different positions of the Z axis are synthesized into a real three-dimensional image; the real three-dimensional image is displayed in an X,Y,Z three-dimensional space; and the invention randomly observes an scene to be observed in 360 degrees and is used to produce the real three-dimensional image with true physical depth in the three-dimensional space. The invention breaks through the bottleneck of three-dimensional display definition, so as to realize tens of millions of three-dimensional image body elements; the three-dimensional image is directly observed without any auxiliary equipment; and a rear projection type is adopted, the whole system is integrated, so as to facilitate transportation and maintenance.

The present invention relates to a new-type RISC microcontroller frame, its core has two-level pipeline, and its adopts data memory and instruction memory separated Hafford-type structure, its access speed can be increased by once, its instruction set has 38 instructions, coding efficiency is high, it adopts pipeline structure, and it is easy to make instruction extension, said microcontroller frame can support low-power sleeping and wake-up mode, can support external interruption and support B port high-4-bit change interruption, and has strong interruption processing capacity, it can process 8-level interruption. Its data memory adopts single-port asynchronous low power consumption SRAM, storage depth is 256X8, can be extended to 2K, the program memory adopts embedded FLASH, storage depth is 4Kx16 bit, can be extended to 64 K bit, its addressing mode has direct addressing, indirect addressing and immediate number addressing mode, can be operated at DC-40 MHz.

A drug-releasable medical device contains a controlled drug-release composition comprising 100 parts by weight of an organic polymeric material which is soluble in an organic solvent and insoluble in water, 5 to 60 parts by weight of a lipid-soluble, low molecular weight release auxiliary agent and 1 to 70 parts by weight of a drug. When the composition is applied on a stent, a catheter, an organ replacement medical device, an artificial organ or the like in the form of coating or the like, the medical device is provided with a drug release function. Argatroban or sarpogrelate hydrochloride or both of them are gradually released from the surface of a stent for treating coronary artery stenosis, for example. In order to exhibit a sustained-release function for a desired period of time, the drug to be gradually released is carried in a polymeric material coated on a surface of a metal forming the stent or in a porous stent substrate.

A method of forming an exposure mask pattern providing edge division points P at edges of a design pattern (1) by predetermined intervals and correcting edge positions for each divided edge portion, wherein, for the design pattern (1), rectangular patterns (10) and (11) are formed having pairs of facing long sides and facing short sides in the design pattern (1). The rectangular patterns (10) and (11) are formed at portions having widths W1a and W2a of the long sides in the design pattern (1) within a predetermined interval W0, so that W1a≦W0 and W2a≦W0. Next, at each of the rectangular patterns (10) and (11), new edge division points P (P1) are given along each of the facing long sides at predetermined intervals t from start points P0 sharing a short side. Due to this, the exposure mask pattern used for lithography can be simplified and the precision of formation of a transfer pattern can be improved.

The invention provides district searching method and device applied to a long-period evolution system. The district searching method comprises the following steps of: A, acquiring symbol timing information and CP mode information according to the iterative characteristic of CP data; B, carrying out the fast Fourier transform of NFFT data points in an OFDM symbol according to symbol timing information to obtain frequency domain data of the OFDM symbol; C, extracting a first candidate detection signal from the frequency domain data of the OFDM symbol according to a corresponding subcarrier position of main and secondary synchronous signals in a frequency domain; D, detecting the ID and the position of the main synchronous signal according to the first candidate detection signal and the known main synchronous signal sequence; E, acquiring a second candidate detection signal of the secondary synchronous signal according to the position and the CP mode information of the main synchronous signal, and detecting the ID of the secondary synchronous signal according to the second candidate detection signal and the known secondary synchronous signal sequence, thereby obtaining frame synchronization information. According to the invention, the complicated design of a narrowband low-pass filter can be avoided, and the operand is reduced.

The invention discloses a drawing method of a power network wind zone distribution map in a mountainous area. The method comprises the steps of data acquisition, data processing, data analysis, wind zone calculation model establishment, wind zone division, wind zone distribution map drawing and the like, the distribution map which can reflect recurrence periods of instantaneous maximum wind speed of the mountainous area can be obtained finally, the route design can be guided, the design which can be applied to adjusting measures to local conditions is conducted according to the instantaneous maximum wind speed wind zone level to drain wind deflection, the project manufacturing cost is reduced, the design which can be applied to selecting the safest and economical line route and prevent wind deflection accidents when building or transformation is conducted on a transmission line can be guided, and the problem that in the prior art, the wind zone distribution map drawing method can not meet the requirements of prevention and control work of wind deflection accidents in plateau mountain areas is solved; the technical problems that in the prior art, the wind zone distribution map lacks years of proofs of data collection, statistics of acquisition and modeling comparison and lacks theoretical support are solved.

The invention relates to a sorting method of secondary batteries. The sorting method comprises the following steps: selecting featured charge states corresponding to to-be-sorted batteries, acquiring electrochemical alternating-current impedance spectroscopy of the to-be-sorted batteries, extracting two-dimensional feature parameters of the to-be-sorted batteries, and then determining battery monomers combined to form a battery pack. According to the internal features of the parts, from a charging platform to a charging cut-off voltage, of the secondary batteries, the consistency of the essentially sorted batteries is better than that of batteries sorted by a conventional method, the integral performance of the battery pack is improved, and the service life is prolonged.

The invention relates to a fuzzy retina fundus image enhancement method based on a generative adversarial network, and belongs to the technical field of image enhancement. The method comprises the following steps of 1, constructing a training set and a test set; 2, respectively preprocessing the fundus images in the training set and the test set constructed in the step 1; 3, constructing a generative adversarial network model for enhancement; and 4, enhancing the fuzzy retina fundus image of the test set by using the trained generator to obtain a final enhancement result. Compared with an existing fundus image enhancement method, the method has the advantages that the enhancement result is smooth and noiseless, the color restoration degree is high, and the problems of color offset, overhigh contrast degree, color distortion and noise amplification of a traditional method are effectively solved; a complex prior model is prevented from being designed, and the processing speed is higher; the details, such as blood vessel distribution of the retinal fundus image, etc., are well restored, and the generation result is real and reliable.

The invention relates to a scroll wrap profile of a liquid-injected scroll compressor. Outer profiles of a static scroll wrap and a dynamic scroll wrap are composed of a section of a variable diameter base circle involute, and the inner profiles of the static scroll wrap and the dynamic scroll wrap are composed by smoothly connecting a variable diameter base circle involute at a center part and normal equidistant curves of the variable diameter base circle involute of the outer ring. The scroll wrap refers to a scroll wrap with compression chamber variational meshing clearance and the wall thickness of the scroll wrap changing gradually. The meshing part close to a central air outlet of the compression chamber is provided with the meshing clearance which forms a pressure unloading channel to the air outlet with small clearance internal leakage, so that the problems of surge pressure in the compression chamber or liquid impacting which are produced by incompressible liquid with relatively large spraying volume. The meshing point of a suction cavity formed by the scroll wrap has no meshing clearance, so that the suction cavity is completely isolated from the compression chamber; at the same time, the wall thickness of the scroll wrap changes thinner gradually from the center to the outer ring, so that the central part of the scroll wrap has enough strength; and the wall thickness at the outer ring of the scroll wrap is relatively thin, so that area utilization rate of a scroll plate is effectively increased.

An assembly and method of sealing a junction of a pipe and a second structure are provided. The assembly includes a pipe liner having a tubular portion and a brim portion, and a mechanical anchor adapted to secure the brim portion of the pipe liner to the second structure. The assembly may further include a compression gasket for placement between the pipe liner and the pipe or second structure. The compression gasket may comprise a hydrophilic material, a hydrophobic material, or a compressible material. The methods of using the assembly include, but are not limited to, the use of a cured-in-place pipe liner.

The invention relates to a road gradient and car state parameter combined estimation method based on a parameter estimation error, and belongs to the field of vehicle engineering. The method comprises the steps of firstly establishing a car driving longitudinal kinetic model according to a car kinetics theory and the newton second law; measuring a car speed and a driving force of an engine by virtue of a car-borne sensor, and adopting the measured car speed and the driving force as input quantities of an estimation algorithm; filtering the car driving longitudinal kinetic model, and extracting a parameter estimation error; judging whether an excitation condition is satisfied: estimating an unknown parameter vector by utilizing a vector designing self-adaptive law containing the parameter estimation error if the excitation condition is satisfied; adding random interference to the driving force if the excitation condition is not satisfied, and returning for re-measurement; finally calculating estimated values of a road gradient, car weight, viscous friction coefficient, rolling friction coefficient and air resistance coefficient by virtue of basic mathematical manipulation. By adopting the method, the cost is reduced, the accumulation of measurement noise can be avoided, and the precision is improved; the calculation quantity is reduced.

A display system, a wireless power transmission apparatus, and a wireless power reception apparatus are provided. The display system includes a wireless power transmission apparatus, a wireless power reception apparatus, and a display apparatus configured to receive power from the wireless power reception apparatus, wherein the wireless power transmission apparatus includes a first coil and a second coil of a closed loop arranged above the first coil and configured to apply power to the first coil to generate a magnetic field in a direction toward the wireless power reception apparatus, and wherein, in response to the generated magnetic field being applied to the wireless power reception apparatus, the wireless power reception apparatus is configured to generate power using a coil of a multilayer structure into which a plurality of insulators is inserted and to transmit the generated power to the display apparatus.

The invention belongs to the technical field of wireless communication, and discloses a SIW ring slot antenna generating dual-mode OAM vortex electromagnetic waves. The cross section of the SIW ring slot antenna is a circular cross section, and the center of circle is O. The SIW ring slot antenna is composed of an upper metal surface, an intermediate dielectric substrate and a lower metal surface.The SIW ring slot antenna is provided with multiple metalized through holes, a ring radiation slot and three feed coaxial probes which are arranged from outside to inside in turn. Multiple metalizedthrough holes are uniformly arranged along the circumference. The ring radiation slot is etched on the upper metal surface. The three feed coaxial probes are three solid metal columns which are uniformly distributed in the internal side of the ring radiation slot along the circumferential direction. According to the SIW ring slot antenna, the design of the complex feed network can be avoided, thesize of the antenna can be reduced and the compactness and the degree of integration of the antenna can be enhanced.

The invention provides an integrated mounting bracket for star sensors. The mounting bracket comprises a mounting bottom plate, an overall support platform, a plurality of support barrels and mounting flanges, wherein the mounting bottom plate is fixedly connected with a satellite platform; the overall support platform is fixedly connected with the mounting bottom plate; the plurality of support barrels are connected with the overall support platform respectively; the mounting flanges are arranged at the top ends of the support tubes and used for mounting the star sensors. According to the integrated mounting bracket for the star sensors, integrated mounting of three star sensors is realized according to a satellite attitude and orbit control subsystem scheme and the mounting requirements of the star sensors, and conditions of non-uniform bracket forms, complicated design and processing procedures and longer period occurring when the star sensors are separately mounted are avoided.

The invention relates to a comb-shaped plastic-reserving agent with a poly-sulphoacid structure particularly suitable for low-slump concrete, which is prepared with allyl polyether, sodium styrene sulfonate and sodium alkyl sulfonate as raw materials. The average molecular weight of the allyl polyether is 400-1500, the feeding amount of the allyl polyether accounts for 50-92 percent of the total molecular weight of the raw materials; and the molar ratio of the sodium styrene sulfonate and the sodium alkyl sulfonate is 1:0.2-1:5. The preparation method comprises the following steps: mixing the aqueous solution of each raw material monomer, heating to 65-98 DEG C, adding an initiator ammonium persulfate solution, completing the dropping within 2-4 hours, maintaining the temperature for 1 hour, cooling until the temperature is below 40 DEG C, adding caustic soda liquid for neutralization, and taking out the product, thereby obtaining the plastic-reserving agent, a comb-shaped polymer with the poly-sulphoacid structure. The structure of the polymer combines the advantages of two water reducing agents, naphthalene and polycarboxylic acid. Therefore, the polymer can realize excellent plastic-reserving property of the low-slump concrete with the slump being 7-9cm. simultaneously; the polymer has good physical and chemical compatibility with the two water reducing agents, naphthalene and polycarboxylic acid.

The invention discloses an implantable blood pump adopting a driven suspension bearing. A T-shaped rotor with a drainage groove arranged in the inner hole is implanted between an upper pump casing and a lower pump casing; the large end of the rotor is an impeller consisting of 4, 6 or 8 blades with dip angles; driving magnet coils are implanted in the periphery of the inner wall of the lower pump casing; suspension permanent magnet outer rings are implanted in longitudinal symmetry in the driving magnet coils on the inner wall of the lower pump casing; driving permanent magnet rings are implanted in the periphery of the outer ring of the rotor; suspension permanent magnet inner rings are implanted in longitudinal symmetry in the driving permanent magnet rings on the outer ring of the rotor; the suspension permanent magnet outer rings and the driving magnet coils on the lower pump casing correspond to the suspension permanent magnet inner rings and the driving permanent magnet rings on the rotor; the outlet of the pump is arranged in the connection position between the upper pump casing and the upper part of the lower pump casing; and the bottom surface of the lower pump casing, corresponding to the small end of the rotor, is in a structure comprising 4, 6 or 8 bulges with dip angles. The pump has the advantages of less wear, less consumption, high shock resistance, reduced energy input of the blood pump, and reduced additional weight of the blood pump, therefore the blood pump is convenient to be developed to the light and portable type direction.

The invention discloses a method and a device for detecting a main synchronizing signal. The device comprises an FFT converter, a PSS extractor, a variable calculator and a maximum value detector, wherein the variable calculator is used for calculating probability variables representing three known PSS signals at each position of OFDM symbols according to K extraction sequences extracted from frequency domain signals corresponding to the K OFDM signs and the three known PSS signals; and the maximum value detector is used for determining the maximum value in the variables, determines a position corresponding to the maximum value as the position of the main synchronizing signal and determines a PSS signal identifier corresponding to the maximum value as the identifier of the main synchronizing signal. The invention also discloses the method for detecting the main synchronizing signal. The method can realize the detection of the main synchronizing signal in a frequency domain, avoids the complex design of a narrow-band low-pass filter, reduces the calculating amount and improves the frequency offset resistance capacity of a system and the success probability of the cell searching process.

The invention relates to the technical field of design of complementary metal oxide semiconductor transistor (CMOS) operational amplifiers and in particular discloses a two-stage fully-differential low-noise low-offset chopping operational amplifier, which comprises choppers S1, S2 and S3 and a two-stage folded cascade operational amplifier, wherein the chopper S1 modulates an input signal to a chopping frequency; the two-stage folded cascade operational amplifier amplifies the signal which is modulated by the chopper S1; the chopper S2 demodulates the signal to a base band; and the chopper S3 is used for dynamically switching a differential pair tube of a current source in the amplifier, so that the current mismatching of the current source and an offset voltage of the amplifier are further reduced. An output offset voltage and an equivalent input noise of the operational amplifier are effectively reduced, output amplitude is improved, a capacitor of an output end and operational amplification output impedance form a low-pass filter, an additional low-pass filter is not required to be designed, and the two-stage fully-differential low-noise low-offset chopping operational amplifier is quite applicable to a sensor detection circuit.

DETAILED DESCRIPTION embodiment of that present application disclose a system management method, The server includes a complex programmable logic device (CPLD), a first substrate management controller(BMC), a second BMC and a first computing node. The CPLD stores first master / backup state information indicating that the first BMC is a master BMC and the second BMC is a backup BMC. The first BMC and the second BMC manage a first computing node according to the first master / standby state information; The CPLD monitors the first BMC and the second BMC in real time; When the first BMC is abnormal, the CPLD updates the first master / standby state information to the second master / standby state information, the second master / standby state information is used to indicate that the first BMC is a backup BMC and the second BMC is a master BMC; The first BMC and the second BMC manage the first computing node according to the second master / standby state information. As that serv arranges the primary and the standby BMC, the management compute node of the standby BMC can be switched immediately when the primary BMC is abnormal, and the problem of a single point of failure of the BMC is solved.

The invention discloses a construction equipment pipeline structure based on an inverted trapezoid slot type composite wallboard. The construction equipment pipeline structure comprises a sandwiched thermal insulation composite external wallboard, a composite internal wallboard and a truss steel bar laminated floor, wherein edge rib columns of the composite external wallboard and the composite internal wallboard are in the shape of an inverted trapezoid slot at a steel bar outlet; the lower bottom of the inverted trapezoid slot is an open end, and the waists, on the upper side, of the are inclined; electric pipelines and device installation positions are embedded in the sandwiched thermal insulation composite external wallboard, the composite internal wallboard and the truss steel bar laminated floor. The invention further provides a design and construction process of the structure. The construction equipment pipelines are embedded to realize integrated design and construction of the inverted trapezoid slot type composite wall construction equipment pipelines in the process of producing the inverted trapezoid slot type composite wallboard. The trouble of performing later secondary grooving and slotting construction is saved, pipeline collision occurring during site construction is effectively avoided, the problems of losses and rework caused by the errors at the construction stage are greatly reduced, and the effects of optimizing the space and bring convenience to use and maintenance are achieved.

The invention discloses a glass fiber cement non-removal formwork system, a connection structure and a construction method of the connection structure. The formwork system comprises a panel group, a support frame structure and a split bolt, wherein transverse interlocked strengthening grooves are formed in the inner side surface of a panel unit at intervals; the support frame structure comprises a frame steel sheet strip, a cross-panel connection assembly and a telescopic panel-attached brace; the frame steel sheet strip is arranged in a full length along the height direction of the panel unit; the cross-panel connection assembly comprises a one-way cross-panel connector; and the split bolt passes through the one-way cross-panel connector and tightens the formwork system from front to back. The connection structure comprises a floor, a formwork bottom locating assembly, a formwork top locator and the glass fiber cement non-removal formwork system. The glass fiber cement non-removal formwork system is simple in form, relatively large in combination rigidity, high in manufacturing accuracy, tight in seam, safe and reliable in structure, good in overall performance, relatively high in turnover frequency, energy-saving and environment-friendly. According to the connection structure and the construction method thereof, the construction efficiency of formwork engineering is improved and the construction cost is reduced.