123results about How to "Avoid edge effects" patented technology

According to one aspect of the invention, an improved multi-polar feedthrough array employs a particular metallic ferrule material for improved dimensional stability during initial fabrication and sustained hermetic operation. According to the invention, the IMD enclosure consists of grade 2 titanium and the ferrule material comprises grade 4 titanium or grade 5 titanium. In one form of the invention, the multi-polar feedthrough assembly comprises a filtered feedthrough array (e.g., employing capacitive filters coupled to the electrically conductive pins or serpentine conductors of the array). According to another aspect of the invention, the improved multi-polar feedthrough array incorporates additional pins, thus further increasing the footprint of the array, and the additional pins provide analog electrical communication between operative circuitry inside an IMD and analog components external to the IMD.

The invention discloses a remote sensing ship contour segmentation and detection method based on a deep learning full convolution network (FCN). The method comprises steps of: firstly constructing a remote sensing ship target database, marking a remote sensing ship target pixel by pixel; then designing a deeper 6-layer full convolution network (6-FCN) structure to perform parameter training by convolution and deconvolution; and finally, subjecting a wide remote sensing detection image to overlapped segmentation, and merging to obtain a final remote sensing image ship detection result after detection. The method can accurately segment the ship contour while effectively and rapidly realizing remote sensing ship target detection, simplifies a traditional complex detection process, and achieve a good segmentation and detection effect.

The invention provides a simulation experimental pipeline device of multi-phase fluid erosion and flow states. The simulation experimental pipeline device comprises a pipeline, a bracket, an erosion resistant storage tank, an erosion resistant pump, a ball valve, an electromagnetic flow meter, a resistance probe, a temperature meter, a pH meter and an oxygen dissolving analyzer, wherein the pipeline comprises an waved pipeline erosion test area and a horizontal pipeline erosion test area. The waved pipeline is simulated through the simulation experimental pipeline device with various inclined angles; the change of erosion rates is recorded in real time by virtue of the resistance probe; an annular sample of which the diameter is the same with the inner diameter of the pipeline is adopted in the horizontal pipeline area. A weight loss method and an electrochemical method are used for monitoring the internal erosion of the pipeline, and the flow states and the multi-phase fluid erosion at an industrial site can be truly simulated, so that the technical problem that the flow characteristic and erosion behavior in a flowing pipeline at an industrial site cannot be truly reflected through indoor dynamic erosion simulation is solved.

A method of soft tissue treatment of a patient includes placing a treatment sleeve with at least one first treatment energy source onto the patient. Massage of the patient's soft tissue is provided by at least one massage unit, with the massage unit including at least two pressure changing elements applied on the patient's soft tissue. An additional or second treatment therapy, different from the massage, is provided by a second treatment energy source. The massage unit creates a pressure gradient between at least two successive elements changing a pressure value in range from 0% to 95% on the patient's soft tissue across a treated body area and stimulates body liquid flow.

The invention provides a preparation method of analysis samples. The method comprises: 1, providing a sample substrate comprising an object observation area with at least one object groove or through hole; and 2, using an FIB to deposit fillers into the object grooves or the through holes. Cavities are not formed in the object grooves or the through holes when a metal protective layer is subsequently deposited because the object grooves or the through holes of the analysis samples prepared by the preparation method of the analysis samples are filled by the fillers, thereby fundamentally preventing drawing stamps of cutting caused by the cavities, as well as plasma damage caused by insufficient thickness of the metal protective layer, and thus effectively improving SEM / TEM analytical quality of the analysis samples.

The invention relates to a self-aligning spherical plain water lubricated tail bearing for ships. The tail bearing is provided with two rubbing pairs, wherein an inner ring (9) and an outer ring (4) are a rubbing pair in spherical contact and are lubricated by grease; the inner ring (9) is provided with linings (7) and is fixedly connected with the linings; the linings (7) and a tail shaft (8) are a rubbing pair and are lubricated by water; and when the tail shaft (8) runs in the linings (7), the inner ring (9) automatically regulates the axis of the bearing along with the shift of the tail shaft (8) to ensure the requirement for coaxiality of the tail shaft (8) and the tail bearing and uniform distribution of pressure on the linings (7). The invention has the function of regulating the coaxiality of the tail bearing and the tail shaft automatically, enables the bearing to endure greater radial force, has simple structure, can avoid edge effect effectively, enables the pressure peak value to descend, and can lead overall distribution of the pressure to tend to be uniform.

The invention discloses a method for inhibiting radio frequency interference (RFI) of a synthetic aperture radar (SAR) on the basis of a neural network and belongs to the technical field of radar signal processing. Firstly, all global frequency domain characteristic values of an FRI signal are detected from frequency domain data of a SAR original echo; corresponding extended alternating projection neural network (EAPNN network) repository patterns are generated by the frequency domain characteristic values and are memoried into the EAPNN network one by one; then the RFI signal is associated from echo time domain data by utilizing an association function of the EAPNN network; and the echo time domain data is directly subtracted from the associated RFI signal so as to fulfill the aim of inhibiting the RFI. The EAPNN network combines the global characteristics and dynamic tracking characteristics, which are difficult to simultaneously consider in the existing method, and thus, on the premise of ensuring high inhibiting accuracy, a high processing speed can be obtained. The method can be widely used for the fields of the SAR, earth remote sensing and the like and is particularly suitable for places with high requirements on both the inhibiting accuracy and the processing speed and dense RFI.

The invention relates to measurement for organic substances in soil, in particular to a method for measuring organic substances in soil. The method comprises the following steps: using a digestion instrument to replace a heating device; using a digestion tube to replace a conical flask to receive samples and reagent solution; covering a small funnel with a bent part above the digestion tube when heating; timing from boiling of the solution; taking down the digestion tube after 6 to 8 minutes; cooling the digestion tube; and using sodium diphenylamine sulphonate as indicator to titrate residual K2Cr2O4. The method has the advantages of good repeatability, high reproducibility, simplicity and practicability.

The invention provides a planetary gear box early fault diagnosis method based on APEWT and IMOMEDA. The method comprises the following steps: firstly, calculating a discrete scale space spectrum of aplanetary gear box fault vibration signal, and adaptively determining a frequency band division boundary on the scale space spectrum; then, APEWT is adopted to automatically decompose the fault signal into a series of modal components, and sensitive components are selected from the modal components; secondly, carrying out deconvolution processing on the sensitive component by adopting IMOMEDA, and carrying out waveform extension on the deconvolved component to obtain a lifting signal; and finally, extracting a fault characteristic frequency from the envelope spectrum of the lifting signal, and comparing the fault characteristic frequency with a theoretical fault characteristic frequency value of the gearbox so as to identify the type of a fault. According to the method, the early fault feature information of the planetary gear box can be extracted clearly and accurately, the problem that parameters in EWT cannot be determined adaptively is solved, the problem that MOMEDA has a seriousedge effect is also solved, and the fault diagnosis accuracy is improved.

A collimator for a detector, such as an x-ray detector of a CT system, includes a plurality of collimator modules. At least one of the plurality of collimator modules includes at least two outer collimator walls and at least one inner collimator wall (1a). The at least one inner collimator wall (1a) has a plurality of steps.

The invention discloses a wireless sensor network positioning algorithm based on an APIT test. The coordinates of virtual anchor nodes are calculated through building a Voronoi graph; sequence ranks are built for overlapped areas; the possible unknown node existing areas are reduced; and finally determined area centroids are taken as estimated coordinates of the nodes. The specific steps comprise: building the Voronoi graph related to the anchor nodes; carrying out the approximation of the perfect PIT test; reducing generation probabilities of Out-To-In and In-To-Out; screening reasonable triangles; determining the overlapped areas through a grid scanning method; carrying out space division to the areas; building the sequence ranks; calculating the similarities of the sequence rank of each subarea and the sequence ranks of the unknown nodes; and taking the subarea centroids with the highest integrating degrees as the estimated coordinates of the unknown nodes. According to the algorithm of the invention, the relatively high positioning coverage, the relatively less positioning error and the relatively stable positioning result are obtained on the premise of increasing no hardware cost and communication cost.

The invention discloses a uniform electromagnetic force field generation device and a method, which can be used for a space microgravity ground simulation experiment. A normal conductive liquid is used for magnetic mixing and suspension, a multi-point support is adopted, an excitation coil and a permanent magnet are designed, a multi-pole coupled electromagnetic field is generated, a needed electromagnetic force is provided in experiment space, the axial electromagnetic force at any point in an identical height and uncontrolled state is the same, a horizontal electromagnetic force is basically zero, and the electromagnetic forces of different heights in the space can reach a required constant value via an active control system. In the given three-dimensional experiment space, a constant electromagnetic force is generated for a moving body according to requirements, and the moving body is constantly in a microgravity simulation effect state. As for different experiment purposes and the moving bodies, the required constant electromagnetic forces are different, the size of the required uniform force field can be regulated and controlled via the active control system of the device, and different space microgravity ground simulation experiment requirements can be met.

The invention relates to a manufacturing method of a personalized retaining splint for department of orthopedics. The manufacturing method comprises the following steps: conducting stress analysis on the surface of a patient's limb with fracture, so that a stress distribution situation is obtained, and forming a plurality of hollowed structures in the surface in accordance with the stress distribution situation, wherein the hollowed structures in a region with a high stress value are dense and the hollow structures in a region with a low stress value are sparse; then, deviating the surface outwards by a predetermined thickness, so that a splint model is obtained, cutting the splint model into two parts, namely an upper splint and a lower splint and filling the hollowed structures within predetermined distances from edges to central directions along the surfaces of the upper and lower splints; separately arranging connecting pieces, which are mutually matched and are used for fixedly connecting the upper and lower splints in a detachable mode, on the upper splint and the lower splint; leading data of the upper splint and the lower splint into a 3D printer and conducting printing, so that the retaining splint is manufactured. The retaining splint for the department of orthopedics manufactured by the invention is not only comfortable to wear; and moreover, the retaining splint is convenient to detach for changing dressing, cleaning and the like.

Through the use of a relatively inexpensive third mirror on a novel folded hybrid unstable resonator configuration, the optimum output coupling for a given laser design can be explored quickly and easily with a minimum of intracavity mirror alignment. No changes in either the radii of curvature of the three cavity optics or their spacing are required for this exploration. In addition to providing techniques for purposefully and systematically introducing mirror edge effects or avoiding edges effects altogether, the invention provides that output beams of different width can be advantageously explored in a relatively simple and straightforward manner. The invention provides that higher geometric magnification cavity designs may be made compatible with low diffraction output coupling in a configuration that uses only three totally reflecting optics.

The invention provides a manufacturing process of a VARI composite material foam sandwiched wedge-shaped part and the obtained wedge-shaped part. The surface of a forming mold is paved with demolding cloth I and then is paved with lower skin, wedge-shaped sandwiching foam is positioned to the lower skin and is paved with upper skin; then, demolding cloth II, a diversion medium, a rubber injection pipeline, an exhausting pipeline and a vacuum bag film are sequentially paved, the vacuum bag film is firmly bonded with a sealing rubber strip, packaging and vacuumizing are performed to complete the processes of vacuum detection, resin preheating, mold preheating, resin injection, closing of the rubber injection pipeline, heating and curing and demolding. A resin hole path penetrating the wedge-shaped sandwiching foam is formed in the wedge-shaped sandwiching foam to accelerate rapid infiltration of fibers in the lower skin under the wedge-shaped sandwiching foam. Compared with traditional VARI, the problems of a VARI foam sandwiched structure part are solved, and meanwhile the defects of the edge effect of wedge-shaped foam part VARI, needle holes formed in the surface of the part, rubber lack and the like are overcome through reasonable flow pass arrangement.

The invention discloses a single image haze removal method based on non-linear clustering. The method comprises the following steps of S1, obtaining a hazed RGB image, and converting the hazed RGB image into an HSV image; S2, blocking the converted image to obtain a depth map of each block; S3, clustering the depth images using the non-linear clustering method, outputting a far class, a middle class and a near class, calculating a perspective rate image of the far class, and calculating corresponding perspective rate images of the middle class and the near class according to an dark channel image of the RGB image; and S4, merging the obtained perspective rate images, calculating the atmospheric light value of a whole image, and outputting a haze removal image. The invention can effectively prevent the edge effect and the color deviation of a dark channel prior haze removal method.

The invention provides a method for improving the air permeability of a sintering material layer. According to the method, prepared air-permeable particles are added into a sintering material according to the proportion in a layered mode when cloth is sintered. A preparation method of the air-permeable particles comprises the following steps that a, material proportion is carried out, wherein sawdust accounts for 50%, slaked lime powder accounts for 4-5%, and the balance is iron mine powder; b, granulating is carried out, wherein the air-permeable particle raw materials are uniformly mixed, and are made into spherical bodies with the diameter of 8-10 mm through a granulating machine; and c, the air-permeable particles are conveyed to a silo for later use after being cooled and screened, wherein in the cloth sintering process, the air-permeable particles are added into two layer bodies which are located at the position with the height of five-thirds of the height of the material layerand at the position with the height of one third of the height of the material layer correspondingly by utilizing a ball distributing device. The invention further provides the ball distributing device for adding the air-permeable particles. According to the method and ball distributing device for improving the air permeability of the sintering material layer, the permeability of the interior of the sintering material is effectively improved, the sintering speed can be increased under the condition that the physical and chemical properties of sintering ore are improved, and a foundation is laid for sintering and production increase.

The invention relates to a sputter coating method. The sputter coating method comprises the following steps: providing a substrate, and arranging the substrate on a positioning tray; transferring the positioning tray on which the substrate is arranged into a horizontal sputtering chamber; and coating on the substrate in the horizontal sputtering chamber by adopting magnetron sputtering. According to the sputter coating method, the substrate is arranged in the positioning tray, and the positioning tray is transferred into the horizontal sputtering chamber for coating, the substrate is directly arranged in the positioning tray and does not drop in the horizontal process, the substrate does not need to be fixed by adopting a clamp, the edge effect and product breakage risk are avoided, and the yield of the product is high.

The invention provides a medical salt mist concentration detection device and a calculation method. The medical salt mist concentration detection device comprises a capacitor array sensor, a data collection control system and an image reconstruction upper computer, the capacitor array sensor is arranged on a medical salt mist delivery pipe and used for converting change of salt mist concentration into change of output capacitance of the sensor, the data collection control system is connected with the image reconstruction upper computer and used for controlling the capacitor array sensor to detect capacitance of medical salt mist, converting the capacitance into digital quantity and transmitting the digital quantity into the image reconstruction upper computer, and the image reconstruction upper computer reconstructs a salt mist concentration distribution image in the delivery pipe through a capacitance tomography image reconstruction algorithm and calculates salt mist concentration through a salt mist concentration detection calculation method. The medical salt mist concentration detection device has the advantages of high accuracy, high sensitivity, high resistance to stray capacitance, high safety and high instantaneity.

The invention discloses a preparing method of a metal material surface nitriding deposition composite antifriction wear-resisting modification layer, and belongs to the technical field of metal material surface treatment. A metal material workpiece surface is rubbed down, polished and cleaned, and is then placed on an anode potential platform in a hollow cathode discharge ion source nitriding furnace, the interior of the furnace is vacuumized to 10 Pa to 15 Pa, ammonia gas is inflated into the furnace, the work pressure is maintained to 100 Pa to 500 Pa, heat preservation nitriding is carried out for 8 h at the temperature of 440 DEG C to 520 DEG C, and after cooling, the nitriding deposition composite antifriction wear-resisting modification layer is obtained. A sample is located at the anode potential, ion bombardment is not needed, nitrogen atoms can permeate into an austenite matrix to form a nitriding reinforcing layer, the problem about the edge effect can be effectively solved, the hardness of the whole surface is uniform, after a metal workpiece is subject to anode nitriding, a nitriding deposition layer is formed on the surface, and the antifriction wear-resisting property is obviously improved.

The invention discloses a profiling flexible array eddy current probe and a detection method. The function of detecting the surface of a whole curved surface workpiece by using a static probe is realized through profiling designed array coils, a coil special arrangement mode and an electronic scanning mode. The flexible array eddy current probe has the beneficial effects that the detection efficiency is improved, interference is suppressed, the flexible array eddy current probe is formed by arranging the multiple coils in a surrounding mode according to the shape of a workpiece, and the edge effect influence is effectively eliminated; a flexible material is used in cooperation, the probe is embedded into a base structure matched with a three-dimensional model of the workpiece, the probe isattached to the surface of the workpiece, and interference caused by different distances between the probe and the surface of the workpiece is reduced more effectively; a multi-channel scanning circuit is adopted for circuit setting, data of each position of a covered workpiece are rapidly collected, and meanwhile a C scanning display mode is adopted; the scanning sequence is from outside to inside in a spiral mode, the edge of the workpiece is preferentially detected, and influence of the edge effect is effectively restrained through the self-induction differential coil.

The invention discloses a sample making method used for ageing and breakdown test. The method comprises the following steps: preparing a polyolefin material through adopting a hot pressing technology, pressing the polyolefin material in a flat vulcanizer to form a sheet or plate-shaped sample; processing the sheet or plate-shaped sample in the flat vulcanizer through using a die with semispherical projections to form a sample with grooves, placing the die in the flat vulcanizer, and synchronously cooling the die with the vulcanizer to room temperature in order to obtain a sample with grooves; and spraying a layer of a conductive metal material surrounding and in the grooves of the sample with grooves. The required shape and dimensions are reached through secondary thermal forming processing of the sheet or plate-shaped sample by deforming the sheet (plate) via the die and a pressure, and matching processes are combined, so application of the target technology is realized, and the test sample made in the invention can effectively eliminate the edge effect and avoid surface flashover in order to obtain accurate breakdown voltage and ageing experiment data.