45 results about "Guiding characteristics" patented technology

The invention discloses a method for monolithic integration of active devices within passive semiconductor waveguides and the application of this method for use in InP-based planar wavelength division multiplexing components of optical communication systems. The epitaxial device is grown in a single run and comprises a number of layers, such that the lower part of the structure acts as a single mode passive waveguide while the upper part of the structure contains a planar PIN diode. The PIN structure is present only in the active waveguide portion and absent in all the passive waveguide portions. The active and passive waveguide portions have substantially similar guiding properties with the exception of a mode tail above a top surface of the passive waveguide portion within the active waveguide portion. As a result, an optical signal portion penetrates the I-layer of the PIN structure and interacts with semiconductor material therein for actively affecting an intensity of the optical signal with no substantial changes in guiding properties of the semiconductor waveguide. Embodiments of invention in the form of monolithically integrated waveguide photodetector, electro-absorptive attenuator and semiconductor optical amplifier are disclosed in terms of detailed epitaxial structure, layout and performance characteristics of the device.

The invention discloses a face cheating detection method based on domain adaptive learning and domain generalization. The face cheating detection method mainly comprises the following steps: constructing an encoder based on a deep residual network; constructing a classifier for detecting face cheating; constructing a discriminator which is used for guiding characteristics to accord with Laplace distribution; forming a training network by using the three parts; constructing a loss function of network training; setting a model optimization algorithm; processing the training data set sample imageto change the size; training and optimizing network parameters; processing the test image to change the size; and carrying out face cheating detection by using the trained encoder and classifier. According to the invention, common features of source domain training data are extracted through a maximum mean difference MMD training encoder; and meanwhile, by combining AAE technology of an anti-autoencoder. The characteristics conform to Laplace distribution, the generalization performance of the detection method is further improved, and the detection performance of the method on face spoofing attacks under complex conditions in practical application is effectively improved.

The invention provides an automatic generation method of face image mask with region perception characteristics. The automatic generation method comprises the following steps: (1) carrying out face detection on an original face image; (2) extracting the shape characteristics of the face image in a face region detected in the step (1); (3) extracting the luminance characteristics and the edge characteristics of the face image; and (4) taking the extracted shape characteristics and edge characteristics as an initial value R for mask generation, taking the extracted luminance characteristics as guide characteristics G for the mask generation, and solving a weighted least square formula to realize the generation of the mask M, wherein the formula is as follows. The automatic generation method overcomes a defect that a general automatic generation method of the mask can not accurately carry out region boundary fitting or generate natural transition, and can guarantee a natural editing effect while face image editing efficiency is improved.

The invention discloses a digital data design method of a local joint surface implant, which comprises the steps as follows: (a) obtaining digital data of joints to be implanted: the joints of patients to be implanted are digitally scanned, thus obtaining the digital data of the joints to be implanted; (b) defining a repairing area and a preserving area: the digital data of the joints to be implanted is divided into two areas which are respectively defined, a cut area required to be cut is defined as the repairing area, and an area left after the cutting is defined as the preserving area; and (c) creating digital data of the implant: characteristics of the repairing area are selected and/or guide characteristics are automatically constructed, and the characteristics are defined as reference data and coordinates with digital data of the preserving area, thus generating a curved surface shape which can cover the outline of the repairing area after the process of mathematical operation, and the curved surface shape is cut and adjusted so as to fit for the size of the repairing area, and further defined as the digital data of the implant.

The invention discloses a transient state measurement system and method for an air guide rate of frozen soil. The transient state measurement system is characterized by being formed by connecting a measurement cylinder (1), an air supply source (3) and an air pressure measuring meter (5). The air guide characteristic parameter S of the frozen soil is measured by using the transient state measurement system provided by the invention and is substituted into a calculating formula given by the invention, so that the air guide rate of the frozen soil can be figured out. According to the invention, the measurement process of the air guide rate of the frozen soil is simplified and the measurement time and cost are saved. The transient state measurement system can be realized technically, is greatly reduced in cost and is easy to popularize and apply.

The invention discloses an automatic confluence device for an ampoule transfusion product advancing bottle body. The automatic confluence device comprises a sensor and a blocking device which are arranged at the front end of a conveying track, wherein a double-swinging confluence device is arranged on the middle part of the conveying track; the double-swinging confluence device comprises a left-side limiting plate, a left swinging cylinder, a right-side limiting plate and a right swinging cylinder; the left-side limiting plate and the right-side limiting plate are arranged in parallel; the left swinging cylinder is used for controlling the left-side limiting plate to swing leftwards and rightwards; the right swinging cylinder is used for controlling the right-side limiting plate to swing leftwards and rightwards. According to the automatic confluence device for the ampoule transfusion product advancing bottle body, the limiting plates are arranged on the left side and the right side respectively, and the limiting plates swing leftwards and rightwards to form a confluence channel, so that the guide characteristics on both sides of the ampoule bottle body are ensured, and the probability in lamination and rotation of the bottle body when the bottle body advances along a guardrail is lowered. Therefore, the guide characteristics of the limiting plates on both sides of a confluence node of the bottle body are ensured, the consistence of the confluence direction and the stability in the running direction of the bottle body are ensured, and smooth entrance into a next station is ensured.

The invention discloses a steady-state measurement system and method for an air guide rate of frozen soil. The steady-state measurement system is characterized by comprising a measurement cylinder (1), an air supply source (3), an air pressure measuring meter (5) and an air flow meter (6). The air guide characteristic parameter S of the frozen soil is measured by using the steady-state measurement system provided by the invention and is substituted into a calculating formula given by the invention, so that the air guide rate of the frozen soil can be figured out. According to the invention, the measurement process of the air guide rate of the frozen soil is simplified and the measurement time and cost are saved. The steady-state measurement system can be realized technically, is greatly reduced in cost and is easy to popularize and apply.

The invention discloses a Mie scattering-based structural unit for an optical fiber attenuator. The principle is that: an optical fiber is locally modified by a laser direct writing technology, namely a heterogeneous material structure is generated in a modified area. The structure can generate Mie scattering on incident light to realize optical attenuation function, the attenuation capacity of the optical attenuator is effectively adjusted by controlling the refractive index and density of the modified area, the dimension along the radial direction of the optical fiber, and the length of the modified area, and one or more Mie scattering-based structural units for the optical fiber attenuator are in cascade connection to form an adjustable optical fiber attenuator. The optical fiber attenuator prepared by the method can realize uniform optical attenuation in a wide band, has a wide attenuation adjustable range, has no back or weak back reflection, and cannot damage the whole wave guide characteristics when the optical fiber attenuator is used for a photonic crystal optical fiber having a waveguide structure. The optical fiber attenuator is simple in structure, low in cost, high-temperature resistant, high in reliability, low in access loss, small in volume and easy to integrate.

The invention discloses a method and device for measuring a hydraulic characteristic of a trickle irrigation emitter. The device is characterized by comprising an air chamber (1), an air supply source (2) and an air pressure measurement meter (3) which are communicated and connected. Air guide characteristic parameters S of trickle irrigation emitters with different models and flows are measured by using the device provided by the invention, and a quantitative relation between flows of the trickle irrigation emitter under different working pressures and the air guide characteristic parameters S is established, flow values of the trickle irrigation emitter under different pressures can be figured out by measuring the air guide characteristic parameters S of the trickle irrigation emitter on the basis of the quantitative relation, and thus, the flow coefficient and the flow state index of the trickle irrigation emitter can be obtained, the hydraulic characteristic of the trickle irrigation emitter is obtained, the measurement process of the hydraulic characteristic of the trickle irrigation emitter is greatly simplified, and the measurement time and the measurement cost are saved. The device can be realized technically, is greatly reduced in cost and is easy to popularize and apply.

The invention discloses an intelligent vehicle steering torque guide distribution curve design method based on driver intention recognition. According to the intelligent vehicle steering torque guidedistribution curve design method based on the driver intention recognition, vehicle state information collected offline is classified and preprocessed, behavior of a driver is taken as input to identify the intention of the driver, a target steering-wheel steering angle is calculated through utilizing front road deviation, different torque guide distribution methods are designed according to a difference value between the target steering-wheel steering angle and an actual steering-wheel steering angle, and a torque guide distribution curve is fitted out. The intelligent vehicle steering torqueguide distribution curve design method has the parameter adjustable characteristic, namely, shape change can be performed on a steering torque guide characteristic curve through set parameters, the curve can be made to be changeable at any time, and independent calibration is performed on the curve parameters according to different steering torque guide requirements of a minor intervention stage,a linear increase stage and a linear saturation stage, the intelligent vehicle steering torque guide distribution curve design method has the advantages of being smooth in torque guide, independent in parameter function and easy to debug, and the expectation in steering hand feel of the driver can be met better.

The invention discloses a Clip detecting system and a detecting method. The system comprises clips, a fail-safe groove, a connecting and inserting piece, an asynchronous clip testing circuit board and a tester. The clips are clamped in the fail-safe groove. A light-emitting diode (LED) and a switch needle are arranged in the fail-safe groove, an anode of the LED is guided out of the groove through a red guide line, a cathode of the LED is guided out of the groove through a black guide line, and two ends of the switch needle are guided out of the groove through two non-red and non-black guide lines. The connecting and inserting piece is connected with the four guide lines of the fail-safe groove. The asynchronous clamp testing circuit board is spliced with the connecting and inserting piece in matched mode and used for detecting whether the clips are arranged in the fail-safe groove correctly. The tester is connected with the asynchronous clamp testing circuit board and used for controlling test of all clips integrally. The Clip detecting system and the detecting method utilize the principle of comprehensive arrangement, effectively combine the two sections of the execution of test programs and practical operation of workers, simultaneously lead the indicating and guiding characteristics of the LED, bring the working efficiency of operators into full play, and improve operation efficiency exponentially.

The invention provides a stapling device provided with a staple cartridge capable of guiding molded staples. The staple cartridge is provided with a plurality of staple grooves, wherein suturing staples are placed in the staple grooves; a first boss and a fourth boss are arranged on the surface of one end of each staple groove; and distances between the first bosses and the fourth bosses are identical to or greater than diameters of the suturing staples, so that one end of the suturing staples can slide between the first bosses and the fourth bosses. According to the technical scheme, the stapling device provided by the invention is simple and reliable; good flatness of suturing staple molding is guaranteed, and meanwhile, the suturing staples are easier to mount; the staple cartridge corresponding to a staple anvil has a guiding characteristic, so that a relatively good suturing staple molding effect is guaranteed; and through the bosses on the surfaces of the staple grooves, clampingforce of the stapling device to tissues is improved.

An X-ray analysis device includes an electron gun, an X-ray optical member, a first detection unit and a second detection unit, and a distance changing mechanism. The X-ray optical member guides characteristic X-rays emitted from a sample to at least any one of the first detection unit or the second detection unit. The first detection unit is formed such that energy resolution is given relative priority over counting efficiency in contrast to the second detection unit. The second detection unit is formed such that counting efficiency is given relative priority over energy resolution in contrast to the first detection unit. The distance changing mechanism changes the distance between each of the first detection unit and the second detection unit and the X-ray optical member in an axial direction of an optical axis of the X-ray optical member.

The invention relates to a metallic guide device for guiding fibrous material between the lap arbours (WW) and a sliver lay (BA) of a comber (1). To improve the guide characteristics of the fibrous product, at least one of the guide devices (3) is provided with a nanoparticulate surface coating that reduces the adhesion of the fibres.

The invention discloses a dynamic in-situ monitoring system and a measuring method for soil profile moisture. The method is characterized by comprising the following steps of: providing steady air flow with a certain pressure and flow for a probe provided with a vent hole and buried in soil by utilizing an air supply source; respectively measuring the flow of steady gas which permeates the vent hole of the probe and the stable pressure in a measuring pipe by utilizing a flowmeter and a barometer, calculating corresponding gas-guide characteristic parameters, establishing a quantitative relationship between the gas-guide characteristic parameters and the soil moisture, and obtaining a soil profile moisture measuring model based on a steady-state soil gas-guide characteristic parameters so as to monitor the dynamic change of moisture content in profile soil body to be measured. The method can be technically implemented, the cost of the equipment is greatly reduced, and the method is easy to operate and easy to popularize and use.

The invention relates to a method and a system for testing the high temperature tolerance and the compatibility of an optical fiber in transformer oil. On a basis of integrating and improving traditional optical-fiber high-temperature-resistant tests and oil compatibility tests, the invention provides a method and a system for testing the high temperature tolerance and the compatibility of the optical fiber in the oil. The method comprises the following steps of: keeping the state of a constant temperature of 105 DEG C and stabilizing for 164 h; and analyzing the high temperature tolerance and the compatibility of the optical fiber in the transformer oil by comparing the changes of the optical fiber sensing and the optical guide characteristic as well as the changes of the transformer oil chromatography and the oil characteristic. Compared with the prior art, the invention has the advantages of controllable test temperature, little external environment influence and simple and convenient operation.

The invention discloses an integral die-forging method for frogs. The integral die-forging method comprises the steps of cogging, pre-forging and finish-forging, wherein during the cogging, original blanks heated to reach an initial forging temperature are pre-allocated in the axial direction through cross wedge rolling to obtain blanks; during the pre-forging, the blanks heated to reach the initial forging temperature are prefabricated through die-forging to obtain prefabricated blanks; and during the finish-forging, the prefabricated blanks heated to reach the initial forging temperature areforged through the die-forging to obtain the frogs. According to the method disclosed by the invention, formation is realized in the manner of cross wedge rolling cogging, die-forging pre-forging anddie-forging finish-forging, and after the cross wedge rolling cogging and the die-forging pre-forging, the form of the mass distribution of the prefabricated blanks is gradually converted to the formsimilar to the finish-forged pieces, of a plurality of the prefabricated blanks at the two ends and a few of the prefabricated blanks at the middle in the axial direction, and a plurality of the prefabricated blanks at the two sides and a few of the prefabricated blanks at the middle in the section direction, from the uniform-section form of the original round-rod-shaped blanks; the tendency of slip of the blanks due to instability during the pre-forging is reduced through the matching of the columnar characteristic of the blanks and the guide characteristic of the pre-forged die cavities; and the integral die-forging method is high in axial machining accuracy and material utilization rate, stable in process, and capable of realizing integral die-forging for the frogs under a low tonnage.

The invention relates to a visual decision support method of an offline Trade Zone design based on online trade data. The method comprises the following steps of data extraction, data cleaning, data unification, longitude and latitude conversion, data modeling, data calculation and data rendering. The advantages of the method reside in that: according to the visual decision support method of the offline Trade Zone design based on the online trade data, decisive data support is directly provided for location selection of new offline stores of the brand, and the brand is enabled to further understand the consumer groups and the degree of brand awareness of the target area so that the scientificity of location selection can be enhanced, the risk of opening the stores can be reduced and the success rate can be enhanced; besides, the consumption characteristics of the target area are enabled to be clear through the help of the online data analysis result so as to guide characteristic marketing and the offline activities of the target area.

A pulley (15) for an elevator (1) is proposed. The pulley (15) comprises a base body (17) made e.g. from steel and having a rotation-symmetrical circumferential surface (23). Additionally, a frictionreducing coating (21) is applied to the circumferential surface (23) of the base body (17). Due to the friction reducing coating (21) and, optionally, due to additionally smoothing the base body's (17) circumferential surface (23) before depositing the coating (21), a very low friction between an outside surface (39) of the pulley (15) and a contacting surface of a suspension traction member may be obtained. Thereby, guiding characteristics of the pulley (15) may be improved and/or alignment requirements upon installation of the pulley (15) may be relaxed. Preferably, the coating (21) may comprise diamond- like carbon (DLC) or chromium nitride (CrN) such that the coating (21) may provide for superior wear resistance, slickness, corrosion protection and electrical characteristics.

The invention discloses an IPMC (ion-exchange polymer metal composite) medical catheter and a manufacture method thereof. The IMPC medical catheter comprises a solid state electrolyte tube and an evennumber of metal electrodes which are arranged on the surface of the solid state electrolyte tube and are coupled with the solid state electrolyte tube. The preparation method comprises the followingsteps of: taking the solid state electrolyte tube, and processing the surface of the solid state electrolyte tube, so as to obtain the processed solid state electrolyte tube; and through a chemical reduction technology or a magnetron sputtering technology, forming an even number of metal electrodes which extend along the length direction of the solid state electrolyte tube on the processed surfaceof the processed solid state electrolyte tube, wherein the metal electrodes are arranged at intervals along the circumferential direction of the solid state electrolyte tube. By use of the IPMC medical catheter and the manufacture method thereof, the even number of metal electrodes is arranged on the surface of the solid state electrolyte tube, the metal electrodes depend on the reversible disembedding of active ions in an electrode material to realize reversible driving response deformation under the function of an external low voltage, the IPMC medical catheter has active bending and guiding characteristics, has a simple structure and is convenient in operation.