55results about How to "Reduce convergence" patented technology

An adaptive signal processing system utilizes a Multistage Weiner Filter having an analysis section and a synthesis section that includes a processor. The processor includes an algorithm for generating a data adaptive linear transformation, computing an adaptive weighting wmed of the data, and applying the computed adaptive weighting wmed to a function of a main input signal and an auxiliary input signal to generate an output signal. A plurality of building blocks in a Gram-Schmidt cascaded canceller-type configuration sequentially decorrelate input signals from each other to produce a single filtered output signal. Each building block generates an adaptive weight wmed that is applied to generate a local output signal. The effect of non-Gaussian noise contamination on the convergence MOE of the system is negligible. In addition, when desired signal components are included in weight training data they cause little loss of noise cancellation.

An x-ray optical device includes an optic and an adjustable aperture that selectively occludes a portion of an x-ray beam. The adjustable aperture may be positioned between the optic and a sample and may be integrated with the optic or located in close proximity to the optic. The adjustable aperture enables a user to easily and effectively adjust the convergence of the x-rays. In doing so, the flux and resolution of the x-ray optical device can be optimized by using an optic having the maximum convergence allowed for all potential measurements, and then selecting a convergence for a particular measurement by adjusting the aperture.

A plunger pump fluid end housing assembly comprising: a fluid end housing, multiple plungers a single suction valve and seat corresponding with each said plunger, and one or more discharge valves and seats corresponding with each said plunger; wherein axes of said suction valve and seat are parallel with said plunger, the axes of said discharge valves and seats are substantially parallel to each other and perpendicular to the said plunger axis, and the suction manifold is positioned to feed the fluid chamber opposite the power end of the fluid end.

A propylene polymerization production data detection and failure diagnosis system, consists of the field intelligent instruments connected with the propylene polymerization production process, DCS system and host, the DCS system has the data interface, control station, and database; the intelligent instruments, DCS system, and host are interconnected in turn, the host has the standardized processing module, main element analyzing module, residual error analyzing module, signal collecting module, diagnostic data specifying module and troubleshooting module. And the invention provides a failure diagnosis method. The invention provides a propylene polymerization production data detection and failure diagnosis system and method for on-line measuring of fuse index, obtaining the excellent diagnosis effect, and effective reducing of the error rate.

The invention relates to a preparation method of poly(lactic-co-glycolic acid based magnetic medicine-carrying hollow microspheres. The preparation method comprises the following steps: adding magnetic Fe3O4 nanoparticles into a poly(lactic-co-glycolic acid solution so as to obtain an oil phase, dissolving a hydrochloric acid doxorubicin DOX into ultrapure water so as to obtain a water phase, mixing the oil phase with the water phase, and carrying out ultrasonic processing so as to obtain a W / O (water-in-oil) emulsion; adding the W / O emulsion into a polyvinyl alcohol PVA solution, and homogenizing so as to obtain a W / O / W (water-oil-water) emulsion; adding the W / O / W emulsion into an isopropyl alcohol aqueous solution, stirring for 1-4h, carrying out centrifugal washing, dispersing the obtained mixture in water, and finally carrying out freeze drying. According to the preparation method, the preparation process is simple, and experiment conditions are normal pressure and temperature; and the product prepared according to the preparation method has a good US / MRI imaging effect and a good medicine sustained release effect, and provides a reference for the development of novel multi-functional therapeutic and diagnostic medicaments.

The invention relates to a preparation method of a composite acrylic acid retanning agent. Acrylic polymer of a single component has poor permeability, so that too many polymer molecules are gathered on the surface of leather; and the fullness and the foamability are also required to be improved for retanning agents of medium and small molecules. The preparation method comprises the following steps of: mixing isopropyl alcohol, acrylic acid, butyl acrylate, ethyl acrylate, hydroxyethyl acrylate and acrylamide into mixed monomer, meanwhile dropwise adding the mixed monomer and initiator solution, raising temperature, preserving heat and performing atmospheric distillation to obtain acrylic acid copolymer; and mixing and stirring the acrylic acid copolymer and fatty alcohol polyethoxylate and adding modified liquid protein filler, modified plant tannin extract and de-ionized water to prepare the composite acrylic acid retanning agent. When the high molecular retanning agent prepared by the invention is used for preparing soft foamed leather, better fullness and foamability are achieved and fine and soft handfeel of the leather is realized.

The invention relates to a large visual field optical imaging method for guided missile detection and identification and a system thereof. The optical system is carried by a guided missile and used for target detection and identification, and comprises an optical glass ball cover, two folded plane reflectors, a band-pass filter, an electrical control diaphragm and an improved Pittsburgh Wan structural objective lens, wherein the improved Pittsburgh Wan structural objective lens is formed by two doublet lens groups and a meniscus lens. According to the invention, the two folded plane reflectors are adopted by the system, so that the system length is reduced, the mounting and adjustment are easy, and the stability is excellent; the requirement for the guided missile pre-reserved space is met while the veiling glare coefficient can be effectively reduced; the system is operated within a wide wave band range and a wide temperature range, chromatic aberration and optical aberration relevant to a visual field are reduced through selecting reasonable glass materials; the system adopts a refraction and reflection type optical structure, is simple and compact, is applicable to wider near-infrared band, has an adaptive temperature range, and has the characteristics of small chromatic aberration, strong athermalization capability, small distortion, excellent imaging performance and the like.

The invention discloses a receiver and a method to process navigation signals from one or more GNSS constellation, wherein an observation model and a measurement model allow a direct calculation of the carrier phase ambiguities. More specifically, in a triple frequency implementation, the receiver calculates in turn the extrawidelane, widelane and narrowlane ambiguities. The code and carrier phase biases can also be directly calculated. Thanks to the invention a quicker acquisition and tracking of a precise position, which will also be less noisy than a prior art solution, especially in some embodiments of the invention using a RAIM and / or a gap-bridging function. Also, code smoothing using the Doppler and low latency clock synchronization allow to decrease the noise levels of the precise point navigation solutions.

The invention discloses a dummy fill insertion method for an integrated circuit layout, and belongs to the technical field of microelectronics. In the dummy fill insertion method, distances between dummy fills and a signal wire are prolonged, the number of the dummy fills is decreased in a direction vertical to the signal wire, the stagger arrangement of the dummy fills is avoided at the same time and the way of arranging the dummy fills is changed, so that the influence of the dummy fills on signal wire coupling capacitance is reduced, and the influence of the dummy fills on the convergence of a time sequence and the integrity of a signal is reduced and the reliability of the product is improved.

The invention relates to a method for manufacturing aged Tie Guanyin tea. The aromatic Tie Guanyin tea is sealed, stored and baked by a scientific method, and then the aged Tie Guanyin tea has unique shape, fragrance, taste and color after several years. Compared with the primary tea, the aged Tie Guanyin tea manufactured by the method is not only more aromatic, sweeter and mellow, but also has multiple pharmacological health-care effects of warming the stomach, tonifying Qi, reducing the fat, reducing the blood pressure, soothing the nerves and the like.

The invention discloses a universal detection method for a reflecting sphere based on computer aided correction. A reverse Hartmann test optical path structure is adopted, the structure and position parameters of a measurement system are optimized by using a computer aided technology, and therefore, the influence of the structure and position parameter error of the system on the surface shape detection result is reduced. The structure and position parameters of a measurement system are pre-calibrated by using traditional three-dimensional coordinate measurement equipment. Then, the local slopeof a reflecting sphere to be detected is measured, and surface shape error data is obtained through an integral method. On the basis, the structure and position parameters of the system are further optimized by using a computer aided technology and a numerical iterative optimization algorithm, and the structure and position parameter calibration error of the measurement system is corrected, and thus, universal reflecting sphere measurement is realized. The invention provides a universal feasible method for the high-precision measurement of a reflecting sphere, and the method has extremely important practical application value.

An object of the present invention is to provide a pneumatic tire capable of, while restricting deformation of groove portions to prevent groove cracks, preventing chipping-off or break-off of protruding portions formed on wall surfaces of the groove as well as preventing irregular wear of the tire. In order to achieve the object, a pneumatic tire comprises a tread surface formed with a plurality of groove portions thereon, wherein at least one of the wall surfaces of the groove portion includes protruding portions and cut-off portions opened to the groove wall surface, and the protruding portions and the cut-off portions are formed alternately on the groove wall surface in an extending direction thereof.

The invention discloses a centralized optimal allocation method for a wireless multi-hop network. The method comprises an initialization stage, an information collecting stage, a model establishing stage, a model solving stage, a set projection stage, a control message distribution stage and a restarting stage. In the case that service flow routing in the network is known, the goal is to maximizethe network utility, a model is solved by using a primal dual interior point method, and a Newton direction of original and dual variables is obtained for iterative updating. Due to the fact that global information such as node power, source node sending rate and the like needs to be used in the updating process of the Newton direction, the computing processing is required to be performed at a control center node in a unified manner.

The present invention relates a numerical method to simulate the incompressible wing-tip vortex flows. This method is called Vorticity-Refinement, which refines the added vorticity as two different forms of force multiplied by two different factors to counteract the numerical diffusions in the numerical solutions by utilizing the high-order spatial discretization and improving the stability and convergence of the governing equations for incompressible flows.

A diode includes: a semiconductor substrate including a first surface including a first range and a second range surrounding the first range, the first surface of the semiconductor substrate protruding in the first range from the second range such that the first surface having a step along a border between the first range and the second range; a first electrode that is in Schottky contact with the first electrode within the first range; an interlayer insulating film that covers the step, the second range, and an end portion of the first electrode; and a field plate electrode conductively connected to the first electrode. The field plate electrode covers a region of the interlayer insulating film covering the end portion of the first electrode and a region of the interlayer insulating film covering the step, and extends onto a region of the interlayer insulating film covering the second range.

The invention discloses a VAE-based medical care federated learning framework determination method, relates to the technical fields of computer science, machine learning and federated learning, and solves the three challenges in the federated learning-based medical care field: 1, the problems of final model performance reduction and slow convergence rates caused by non-IID data distribution; secondly, the problem of large model deviations caused by unbalanced distribution of positive and negative samples of medical data; and thirdly, the problem of difficult actual deployment caused by too large communication bandwidths consumed under federated learning. According to the invention, two lightweight VAEs are trained under a federated learning framework; then the trained VAEs are distributed to all nodes to be used for updating local data of the nodes, wherein updated local data has the characteristics that all the data is low in dimension, distribution is similar, and categories are balanced; and finally, an anomaly detection model is trained by using the data.

A layout design method of a semiconductor integrated circuit to be formed in an integrated circuit (IC) chip is provided. The layout design method includes reading a netlist and a soft macro. The soft macro includes: relative position information describing relative positions of a plurality of relative arrangement position determined cells; and wiring information describing positions of arrangement position determined wiring lines arranged in corresponding to the plurality of relative position determined cells. The layout design method further includes: determining coordinates of the plurality of relative arrangement position determined cells in the IC chip based on the relative position information; determining wiring routes of the arrangement position determined wiring lines in the IC chip based on the coordinates and the wiring information; and determining an arrangement position of an arrangement position undetermined cell in the IC chip. The arrangement position undetermined cell is a cell of which arrangement position in the IC chip is undetermined in advance.

A display drive circuit includes: source amplifiers capable of driving source lines of a display panel connected thereto; preamplifiers capable of outputting first gradation voltages; source circuits each including a division of the source amplifiers, provided that the source amplifiers are divided equally; and resistance arrays. Each source circuit is provided with one of the resistance arrays. Each resistance array divides input first gradation voltages to generate second gradation voltages and provides them to the corresponding source circuit. The worsening of the capability of converging of gradation lines for supplying second gradation voltages to the source circuits can be suppressed without providing gradation-voltage-generation circuits even with a display driver IC having an increased long side length, or more than one display driver IC provided.

The present invention relates to method for raising biological function of protein. The method includes reasonable conventional protein design to determine the functional region related to the biological function of protein; substituting the gene in the functional region related to the biological function of protein with randomly changed primer segment and constituting mutant gene library in conventional gene engineering method; and the final directional protein evolution to screen out from the mutant gene library the protein with raised biological function. The method of the present invention can obtain protein with raised biological function, and is simple, practical and efficient.

The invention provides a driving intention identification method of a self-adaptive double particle swarm optimization support vector machine, and relates to the technical field of gear shifting control strategies of an automobile gearbox. Driving intention classification numbering is carried out according to collected data, in order to solve the influence of parameter selection of the support vector machine on the model learning capability, the self-adaptive double particle swarm optimization is utilized for carrying out parameter optimization of the support vector machine, then the optimizedsupport vector machine is trained and verified through a collected data set, and finally, the driving intention is identified through the data acquired in real time. According to the method, the support vector machine in machine learning is adopted, the support vector machine is optimized, and therefore the driving intention can be quickly identified, the identification accuracy is high, the method can be applied to the gear shifting control strategies of the automobile gearbox, the gear shifting rationality during automobile driving is further improved, and the gear shifting quality is improved.

A semiconductor integrated circuit including a user logic circuit is disclosed in which circuit parts for shifting data are composed of registers other than scan cells except for the circuit part right after a combinational circuit, and the parts configured of the registers other than the scan cells are used as a scan path.

Device for shaping laser radiation which has sub-beams (3) spaced apart in a first direction (X) perpendicular to the propagation direction (Z) of the laser radiation, in particular for shaping laser radiation which is output by a laser diode bar (1), comprising a first refractive interface (8) which can differently deviate at least a multiplicity of the sub-beams (3) of the laser radiation to be shaped, so that they travel at least partially converging together after passing through the first interface (8) more than before passing through the first interface (8), and furthermore comprising a second refractive interface (9) through which the laser radiation can pass after having passed through the first interface (8), the second interface (9) being able to deviate at least some of the sub-beams (3) so that their convergence is reduced.

The invention provides a radio frequency matching circuit and a method for debugging the radio frequency matching circuit. The radio frequency matching circuit includes more than two sub radio frequency matching circuits, one end of each sub radio frequency matching circuit is connected with a sub signal output end, and the other end is connected with an input end of an antenna; and a signal output by each of the sub signal output ends has a different frequency range. Thus signals output by an output end of a radio frequency converter are output through more than two sub signal output ends according to difference of the frequency ranges, then impedance in the corresponding frequency range is debugged through the sub radio frequency matching circuit connected with the sub signal output end, so that a radio frequency engineer can perform matching debugging in a relatively small frequency range, the debugging difficulty is lowered, the degree of convergence of a Smith chart is improved, the reflection power is reduced, and a debugging effect is improved, thereby improving the radio frequency performance of a mobile terminal.

The invention discloses a second-order method for united congestion control and power distribution of an interference-limited wireless multi-hop network, comprising the following steps: S1: acquiringbasic configuration information and a routing table by each node, and working out a updating feasible set; S2: building an optimization model of congestion control and power distribution, and performing simplification and reconstruction; S3: solving the reconstructed optimization model through a primal dual interior point method to obtain Newton direction updating formulas of an original variableand a dual variable; S4: completing update of the original variable and the dual variable through Newton direction; S5: if a updated result exceeds the feasible set, adjusting the updated result through a set projection method; S6: after the original variable and the dual variable update to convergence, transmitting a calculation result to each node in a network by a control center node, and distributing a service flow rate and a link power by the each node according to requirements; and S7: if a new service flow is added, repeating the step S1; and otherwise, operating a system according to the current distributed values all the time. The second-order method of the invention has the beneficial effects of capacity for significantly improving network utility and energy utility, and capacityfor making up for the deficiency that a conventional second-order algorithm does not perform optimization on physical layer power.

An oral nursing agent contains quaternary ammonium salt, biguanide, non-ionic surfactant, Zn-Al-polyprotic acid composition, hydrophilic solvent, enzyme inhibitor and water. A process for preparing said Zn-Al-polyprotic acid composition is also disclosed.