39 results about "Line spread" patented technology

A measuring method for dynamic object modulation transfer function belongs to the test field of optical properties. The invention aims to provide a measuring method for dynamic object modulation transfer function that can not only remove background vagabond ray and dark current of an image sensor, but also remove nonideal target size and the effect on a measuring result by the diffraction and aberration defect of an optical system. The method first respectively records an interference image, a still image and a dynamic image through imaging under the condition of closing and lightening a point light source, keeping the light source still and moving the light source, respectively uses the still image, the dynamic image and the interference image to do subtraction and obtain an anti-interference still image and an anti-interference dynamic image, extracts and modifies line spread function therein to obtain modified static and dynamic object line spread functions and obtains initial static and dynamic object modulation transfer functions through Fourier transformation. And finally, the method uses the initial dynamic object modulation transfer function to be divided by the initial static object modulation transfer function, thus obtaining the final measuring result of the dynamic object modulation transfer function.

A cache memory logically partitions a cache array into at least two slices each having a plurality of cache lines, with a given cache line spread across two or more cache ways of contiguous bytes and a given cache way shared between the two cache slices, and if one a cache way is defective that is part of a first cache line in the first cache slice and part of a second cache line in the second cache slice, it is disabled while continuing to use at least one other cache way which is also part of the first cache line and part of the second cache line. In the illustrative embodiment the cache array is set associative and at least two different cache ways for a given cache line contain different congruence classes for that cache line. The defective cache way can be disabled by preventing an eviction mechanism from allocating any congruence class in the defective way. For example, half of the cache line can be disabled (i.e., half of the congruence classes). The cache array may be arranged with rows and columns of cache sectors (rows corresponding to the cache ways) wherein a given cache line is further spread across sectors in different rows and columns, with at least one portion of the given cache line being located in a first column having a first latency and another portion of the given cache line being located in a second column having a second latency greater than the first latency. The cache array can also output different sectors of the given cache line in successive clock cycles based on the latency of a given sector.

With technical surfaces, in particular in semiconductor manufacture, it is a regular requirement to obtain the reflection coefficient of an inspected object (12). To better match the calculated model spectrum (16) to the obtained measured spectrum (18) with respect to damping when thick layers are measured, the measuring system (10) is measured with respect to its line spread I(λ). The measured line spread I(λ) is iteratively used for calculating the damping of the model spectrum (16), so that a damped model spectrum (20) is obtained.

The invention belongs to the technical field of a power system and especially relates to a power transmission line wildfire dynamic forecasting and early warning method based on sequential variation. The method is characterized by, to begin with, constructing a wildfire spreading ellipse model at the initial time t0 according to wildfire point initial position F0, wind direction and wind speed and slope information, and calculating wildfire maximum spreading speed Vmax at the current time; calculating the minimum distance D0 between the F0 and a power transmission line L at the time t0 and spreading speed VL0 in the direction, and determining power transmission line wildfire early warning grade at the time t0; determining speed of the fire point F1 in the power transmission line spreading direction at the next time t1; calculating a wildfire spreading model obtained from the time t1 and after a time period delta t; repeating the steps above until obtaining a series of wildfire point positions about time series; and when receiving fire point F0 spreading and ambient environment change information at any time, updating a new wildfire spreading path diagram in time starting from the time. The method can correct wildfire spreading forecasted paths in time, and has the advantages of small calculation amount and clear target and preventing simulation in irrelevant direction.

The invention relates to an aircraft electromechanical system health management method based on power line spread spectrum carrier, which is used for low-cost management of the aircraft electromechanical system health. Its technical solution is to realize the collection of multi-category information through the power line spread spectrum carrier, adopting the method of decentralized collection and group number management; using the power line carrier as the communication mode, the multiplexing of the power grid and the communication network is realized by using time-sharing transmission to realize different types of information. The transmission of data reduces the cost of health management of the aircraft electromechanical system; the use of FPGA hardened spread spectrum communication technology improves the confidentiality and reliability of the system. At the same time, fast Fourier transform and neural network technology are used to realize the fusion processing of data in DSP, so as to estimate the state of the aircraft electromechanical system and further predict the fault. At the same time, the processing results are transferred to FLASH to facilitate off-line smoothing of data, which provides a basis for aircraft maintenance before take-off.

The invention discloses a hybrid rice breeding method for lowering seed production cost. A target restorer line with drooping leaf character is bred, test cross is carried out on the target restorer line with drooping leaf character and a sterile line, the lamina of the restorer line does not form hinder when the pollen of the restorer line spreads to the sterile line, and thus the lamina of the restorer line can be free from being cut off manually. The invention saves manpower and has good pollen spreading effect.

The invention relates to the technical field of circuit communication, specifically to an Internet of things platform based on a street lamp distribution line. The Internet of things platform comprises at least one illumination terminal and at least one communication gateway, wherein the communication gateway is connected with a carrier machine positioned inside a power distribution cabinet, an area data communication subnet is formed, a plurality of area data communication subnets are used for feeding back monitoring data into a cloud server through the communication gateway separately, the Internet of things platform is constructed according to the method on all street lamp lines inside streets or urban areas, due to the fact that street lamp electric power lines spread all over the area, a street lamp is provided with a sensor/instrument to monitor and collect environmental data of corresponding street lamp areas, the carrier machine is used for remotely transmitting a demodulationsignal to the cloud server through a router, and the Internet of things platform in the area is constructed. Under the condition that the original electric power line layout of the whole Internet of things platform does not change, the Internet of things platform is constructed, rewiring is not needed, no antenna is needed, the method is extremely easy to popularize, and the method has extremely high practicability.

The present invention provides an image display device which suppresses the generation of sparks between end portions of divided portions and an anode when data signal lines are divided in two. Within a display region, between scanning lines GAN, GB1, data signal lines are divided in two in one direction of the data signal lines, that is, into upper data signal lines DA and lower data signal lines DB. Assuming a width of the data signal lines DA, DB as W, and a distance between opposedly-facing end portions of the divided electrode portions as S, and a pitch of the data signal lines as P, by establishing a relationship S≦W/2, the influence of a potential attributed to an abnormal charge which concentrates on the end portion of the data signal line spreads radially and does not extend to a center portion of the divided portion thus suppressing an abnormal discharge.

A power line spreading device used to separate the two conductor lines of a twisted pair conductor. The spreading device includes a substantially conical body and a handle. The body further includes a groove in an outer surface orientated in a conic spiral along a length of the body wherein the diameter of the conical body gradually increases from a first end to a second end. The spreading device is engaged with the two conductor lines proximate the first end, rotated about an axis of rotation whereby the groove acts to draw the two conductor lines from a first end toward a second end of the body. The gradual increase in diameter of the spreading device causes and maintains a desired spread distance between the two conductor lines of a twisted pair connector.

The invention relates to a UV curable gel ink spreading method and system includes setting an ink re-flow drum temperature, jetting UV gel ink onto a substrate using a print head, heating a back side of the substrate to cause re-flow using the re-flow drum, and curing the UV gel ink image using a UV source to produce a cured image. At least one of drawback and line spread may be measured in-line to determine whether to modify a drum temperature, a UV source location, and/or a print process speed to optimize drawback and/or line spread. Acceptable or optimized temperatures and/or UV source locations may be saved as a set point that corresponds to a substrate type.

The technology provides a self-water-collection fireproof fire-extinguishing network. The network can be built on a region where forest fire hazards happen frequently, a forest is divided into small cases, stored rainwater is utilized to be sprayed to combustibles on the ground surface in the forest to form a wet network belt in a high forest fire danger period and before a fire line spreads to the network, so that the network can effectively prevent fire and extinguish fire. The network comprises self-water-collection water trees composed of trunks and crowns, a forest fire danger detection system, a smog and fire behavior detection system, a spraying irrigation system, a fire extinguishing system and a controller. The trunks are closed hollow column bodies. Each crown comprises a water collector composed of leaves and stalks and used for collecting rainwater and enabling the rainwater to flow into the corresponding trunk. The spraying irrigation system comprises a spraying pipe laid on the ground and a spraying pipe water pump arranged on the spraying pipe. The fire extinguishing system comprises a sprayer pipe provided with a sprayer water pump. The smog and fire behavior detection system comprises a smog sensor. The forest fire danger detection system comprises a humidity sensor. The controller is electrically connected with the spraying pipe water pump, the sprayer water pump, the humidity sensor and the smog sensor.

According to the centrosymmetric QKD ring type multi-user system and the key distribution method thereof, the system is realized based on a Sagnac ring, the network structure is relatively simple, and the technology is relatively mature; meanwhile, each user stabilizes the light polarization state through the polarization controller, so that the system has better stability; the number of network users can be expanded by the two multi-user terminals according to actual conditions, and quantum key distribution between the users and a plurality of receiving users of the receiving terminal can be controlled through a wavelength division multiplexing/demultiplexing device. Each multi-user side shares one multi-wavelength laser generating device, and shares one group of detectors through the arrangement of the adjustable light delay line, so that the network structure is simplified, and the network cost is saved; the multi-wavelength laser generating device selectively generates multi-wavelength light pulses with certain wavelength intervals, signal crosstalk caused by the four-wave mixing effect can be reduced, and the bit error rate is reduced.

The invention discloses a curve detection method and device, equipment and a medium, and the method comprises the steps: carrying out the binarization of a to-be-detected image, and obtaining a binarized image; carrying out straight line detection on the binarized image to obtain a basic straight line; and expanding the basic straight line to obtain a curve point set where the basic straight lineis located.

The invention discloses a multilayer cell forest fire spread algorithm. The algorithm comprises following steps: step 1, layering downwards: separating a fire scene from top to bottom successively according to 0, 1, 2, ..., N; step 2, decomposing layer by layer: wherein the lower layer is the further decomposed layer of corresponding upper layer cells, every lower layer is decomposed into a plurality of cells, the cells calculate the development tendency of the cells according to the fire behavior development factors of the layer, the development tendency comprises a development direction Theta, development strength Gamma and a fire line Mu; step 3, calculating spread: starting from the Nth layer, collecting the development tendency respectively calculated by the cells of each layer to generate a development tendency corresponding to the upper layer cells, calculating until to the 0th layer, and calculating the fire line spread range corresponding to the 0th layer through a cell collection algorithm. According to the multilayer cell forest fire spread algorithm of the invention, the fire behavior development can be effectively predicted so as to schedule and deploy in advance; the fire behavior is controlled as early as possible; and the fire behavior is prevented from deteriorating.

A composite tear detection bar includes a cotton wire and a detection filter paper. The cotton wire is connected to the detection filter paper and is disposed on a front end of the composite tear detection bar. The cotton wire is formed by a plurality of cotton threads. The detection filter paper is arranged on a back end of the composite tear detection bar. The composite tear detection bar is in the shape of a bar in whole. A scale line having length marks are disposed on the detection filter paper and a dyeing line, which is arranged in parallel with the scale line, is disposed at a back side of a connection position between the cotton wire and the detection filter paper. When tear detection is carried out, the cotton wire contacts ocular tissue of an patient so that stimulation on the ocular tissue of the patient is reduced and discomfort of the patient during the tear detection can be reduced. By means of the scale line on the detection filter paper, a doctor can carry out the tear detection more conveniently, intuitively and accurately. By means of the dyeing line disposed on the front end of the detection filter paper, a dyeing agent on the dyeing line spreads along with to-be-detected tear so that a front edge of wetting length of the tear can be clearly display. The composite tear detection can provide a reliable evidence for the doctor in diagnosis of diseases such as ophthalmologic tear secretion disorder and the like.

The present invention relates to trawl doors used in trawl fishing, including shallow water trawl fishing applications, deep water trawl fishing applications, bottom trawl fishing applications as well as at pelagic trawl fishing applications. The invention also relates to seismic surveillance line spreading and spreading of other items towed in water. The present application provides a novel trawl door design with improved stability and efficiency. The inventors are able to demonstrate smaller angles of attack using the trawl door of the present invention, which is as little as 7.5 degrees.

The invention discloses power line spread spectrum communication equipment. The power line spread spectrum communication equipment comprises a power module, an RS232 serial port connected with an upper computer, a lower computer, a storage device, a spread spectrum modem, a prime amplifier, a power amplifier, a band-pass filter and a coupling circuit, wherein the coupling circuit is connected with a power line, the signal output end of the coupling circuit is connected with the signal input end of the band-pass filter, the output end of the band-pass filter is connected with the signal input end of the prime amplifier, the signal output end of the prime amplifier is connected with the signal input end of the spread spectrum modem, the signal output end of the spread spectrum modem is connected with the signal input end of the lower computer, the power module supplies power for the lower computer, the signal output end of the lower computer is connected with the storage device, the communication serial port of the lower computer is connected with the RS232 serial port, and the upper computer is in communication with the lower computer through the RS232 serial port. The power line spread spectrum communication equipment has the advantages of being high in sensitivity and anti-interference capability, low in production cost, economical and reliable.

An optical characteristic measurement apparatus acquires a measurement value pertaining to an image characteristic of an optical system to be tested on a plurality of evaluation planes, and measures an optical characteristic, comprising a measurement value correction unit correcting a measurement value pertaining to a width or a light intensity of one of a line spread distribution and a point spread distribution of a beam, on the evaluation planes, wherein: in case where the measurement value pertains to the width, the image plane is regarded as an evaluation reference plane, and the measurement value correction unit outputs a corrected value; in case where the measurement value pertains to the light intensity, the image plane is regarded as an evaluation reference plane, and the measurement value correction unit also outputs a corrected value; and the optical characteristic of the optical system to be tested is measured based on the corrected value.