35 results about "Natural distribution" patented technology

The present invention relates to a polarimetric calibration technique based on natural distribution scenes and a rare calibrator, which is used for the calibration and correction of distorted polarimetric synthetic aperture radar (SAR) data. The present invention breaks the calibration bottleneck of domestic machine-borne polarimetric SAR data, and develops a technique which utilizes widely distributed natural ground objects for the crosstalk calibration of polarimetric data without the help of an artificial corner reflector and needs only one or a small amount of triple-sided corner reflectors for the calibration of the imbalance of polarimetric receiving channels. In addition, the technique uses the strength change of natural ground object scenes with wide similar radar backward scattering properties in the distance direction to fit out an antenna directional pattern, and fully utilizes polarimetric ground object information to correct all the polarimetric SAR channel data with the same antenna directional pattern, thereby retaining the polarimetric scattering characteristics of ground object targets before and after correction.

Optical sources presented are comprised of a semiconductor emitter and supporting package system including a hard plastic lens cover and mounting substrate with electrical and mechanical support for the semiconductor. A cavity is formed between the lens cover and substrate which supports addition of materials which cooperate with optical propagation and produce some interaction or effect with respect to the beam. Some versions include dispersants and wavelength shifting materials. In any case, the arrangement and spatial distribution of these materials is not trivial. Both the cavity shape and material placement effect the final output of systems produced here. Well designed filling ports in the substrate permit injection of viscous material such that some preferred spatial distribution is realized. Filling port position may cooperate with separate cavities or may merely encourage natural distribution dictated by flow properties of the materials.

The invention relates to the technical field of forest plating, and particularly relates to a method for planting a mangrove forest in a high-salinity deepwater sea beach. The method comprises the following steps: (1) preparing land; (2) planting; and (3) maintaining and managing the forest. Because no natural distribution of the mangrove forest exists in the deepwater sea beach, the mangrove forest cannot be successfully planted by adopting a conventional method; the mangrove forest can be planted in the high-salinity deepwater sea beach by adopting the method disclosed by the invention, the distribution area of mangrove forest wetland resource in a coastal region of South China is enlarged, the ecological function of protecting the coast by the mangrove forest is given a full play; water channels coexists in a mangrove forest restoration area, and thus a diversified environment is created so that a diversified living space can be provided for wildlife; meanwhile, in a mangrove planting area of the deepwater sea beach, by using the water channels in the mangrove forest, a natural ecological cultivating system in which the mangrove forest and the fishery industry coexist can be established, and the sustainable healthy development of the aquaculture industry in a coastal community is effectively promoted.

The invention provides a device and method for observing natural distribution of air cores in water in a low-air-pressure environment. The device comprises a vacuum model box, a sheet light source, a laser transmitter, a synchronous controller, a computer and a CCD camera, wherein the vacuum model box is provided with a vacuum valve, a water inlet valve and a water draining valve; the sheet light source is connected with the vacuum model box; the laser transmitter is connected with the sheet light source; the synchronous controller is connected with the laser transmitter; the computer and the CCD camera are separately connected with the synchronous controller; and an image acquisition card is arranged in the computer and is connected with the CCD camera. By a reasonable image acquisition method and an air core recognition method, natural distribution of the air cores in the water in the low-air-pressure environment is observed. A method for measuring basic properties of the water under low air pressure under the conditions of a laboratory is innovated, distribution of the air cores which naturally exist in the water in the low-air-pressure environment can be observed accurately, and the device and method can be extensively used in the fields of water quality detection in a high-altitude region, water pollution treatment, cavitation and erosion, teaching and research and the like.

The method includes three parameters for initializing oil layer L: random range of height, smoothing coefficient W, and coefficient of oil content R; building a minimal height field M represented in exponent of 2 with its long and width being larger than oil layer L, and using modified Diamond-Square algorithm to generate value of height; assigning the value of height to virtual oil layer L, and discarding height field not belonging to height field of oil layer; creating irregular effect of oil layer, and traversing virtual oil layer L, and calculating random color value for each point. Thus, the invention can draw virtual oil layer accorded with natural distribution on display screen so as to simulate underground oil layer factually and rapidly.

The invention discloses a magical-color and special-shaped powder preparation and distribution process. The invention is characterized in that a variety of special-shaped powders in ball, star, diamond and column shapes and of cement-spraying magical color are prepared by special-shaped powder equipment and that the distribution is implemented combined with counter-beaten micropowder and line distribution process. Therefore, porcelain tile products with natural distribution of various magical-color and special-shaped powders and fluent micropowder surface are formed. The magical-color and special-shaped powder prepared by the invention has the advantages of translucent phase, abundant levels, organic combination of powdery pattern, surface pattern and lines and natural texture, thus having more natural stone aesthetic feeling.

The invention relates to a steady state phase-locking error-free phase locking system and a steady state phase-locking error-free phase locking method. In the method, the natural distribution law of center frequency of each sub-band filter is determined according to the sampling frequency (fs) and the number of sampling points (N) in fast Fourier transform (FFT); the bandwidth of the sub-band filter and the position of the center frequency can be changed by regulating the sampling frequency; when the sampling frequency fs is integral multiple of locked signal frequency fx, and the number of sampling points is N, a locked signal is certainly at the center frequency of a N/mth sub-band filter; and when the sampling frequency fs is determined by the locked signal frequency fx, the center of the N/mth sub-band filter is the position of the locked signal frequency, wherein the filter is a matched filter special for an input signal, and the frequency and the phase position of an output signal of the matched filter are the frequency and the phase position of the locked signal, so that steady state errors are not generated.

The invention relates to an inclined plate type device for preventing lump coal from being broken in the process of entering a bin. Steel rails are paved at the top of the bin, so that a belt conveyor can move reversibly and the bin distribution requirement during high bin position can be met; and lump coal is gathered by a short inclined plate, the lump coal subjected to speed reduction can turn to slip along the inclined plate of the bin at a low speed by virtue of the gravitational potential energy of the lump coal, a buffering mechanism at the lower end part of the inclined plate of the bin performs secondary buffering speed reduction on the low-speed lump coal, and the lump coal slips into the storage along the conical slope of the bin by virtue of the gravitational potential energy of the lump coal, so that the process of the lump coal entering the bin without being broken and without broken points is implemented. The device can realize natural gathering, buffering speed reduction, low-speed slip and natural distribution and storage of the lump coal under the all-day unattended condition, realizes high utilization ratio of the bin volume and automatic warning in high storage position, overcomes the defects of the traditional device for preventing the lump coal from being broken in the process of entering the bin, solves the problem that the lump coal is broken when entering the bin, and has the characteristics of small investment, high efficiency and operating reliability.

The invention discloses a keyboard for inputting Chinese characters. By distributing the phonetic symbols roughly in columns according to the inherent order, the user is easily familiar with which key position of the small keyboard the different coded characters are located on, which is convenient for the user to memorize; at the same time, due to The number of initials on each key is two or three, the number of finals is one or two, the number of intermediates is zero or one, and the most frequently used phonetic symbols are roughly distributed in different key positions Therefore, each key has a better balance in frequency of use.

The invention provides a water ecological restoration device of a hard revetment riverway. The water ecological restoration device comprises the hard revetment riverway, supporting rods, fixed rods, transverse rods, planting baskets, movable screws and expansion screws, wherein the supporting rods, the fixed rods and the transverse rods are connected through the movable screw to form triangular supporting frames; each fixed rod is provided with a drilling hole; the expansion screws are used for fixing the fixed rods at one side of the hard revetment riverway through the drilling holes; each supporting rod is provided with a T-shaped clamping groove; T-shaped clamping strips are arranged on the planting baskets; the T-shaped clamping strips are connected with the supporting rods through theT-shaped clamping grooves; the plurality of planting baskets are arranged and are distributed on the supporting rods in a ladder shape. According to the water ecological restoration device provided by the invention, the supporting frames for planting water plants are constructed so that the problem that the hard revetment riverway is lack of a water plant-attaching medium can be solved; emergentaquatic plants, floating-leaf water plants and submerged plants are planted at different water depth positions according to an ecological theory and a natural distribution law of the water plants so that the aim of constructing an artificial channel aquatic ecosystem can be rapidly realized.

The invention provides a probe detection microstructure unit, a sensor, an apparatus for measuring water content and a method thereof. The probe detection microstructure unit comprises an insulating shell; and a probe used for measuring resistivity positioned in the insulating shell. The insulating shell comprises two opposite openings, liquid or gas flows into the insulating shell through one of the openings and the probe, and flows out of the insulating shell through the other opening. The sensor comprises several probe detection microstructure units; and the apparatus comprises the sensor, several resistivity detection circuits and control equipment. The sensor is easy for easy flowing, and does not change natural distribution state of oil, gas and water in an oil well. The probe detection microstructure unit, the sensor and the apparatus accord with oil-water random distribution characteristics of the producing layers under high water-containing state, the water content of the producing layers can be rapidly and timely detected, and the water content of the producing layers can be accurately determined.

The invention discloses crack paint, a preparation method thereof and a paint spraying method achieving a crack effect. The crack paint comprises a crack paint mother solution and crack water, wherein the weight ratio of the crack paint mother solution to the crack water is (30-40%): (70-60%); the crack paint mother solution comprises the following components in percent by weight: 4-6% of acrylic resin, 5-7% of a crack slurry, 3-5% of matt powder, 3-5% of butyl acetate, 45-55% of a toner and 25-35% of crack gloss oil; and the crack water comprises the following components in percent by weight: 30-40% of methylal, 35-45% of dimethylbenzene, 4-6% of butyl acetate and 18-22% of methyl ethyl ketone. According to the invention, through adjustment of a composition proportion and a construction process, the crack paint can be firmly and uniformly attached to the surface layer of a plastic sphere or an egg-shaped body, and spraying is simple and high in efficiency, and an effect of uniform and natural distribution of an overall crack is achieved.

The invention relates to a method of culturing nostoc flagelliforme in a large scale. The method fully utilizes long sunshine duration, low air humidity, and other natural conditions in arid-semi-arid regions (natural distribution regions of the nostoc flagelliforme), reduces the culture cost and achieves large-scale culture. Seed plates having different sizes and different sowing distances are adopted, and the yield in unit area and culture time can be adjusted freely. After sowing, the seed plates of the nostoc flagelliforme are covered with screens, thus preventing seed plate displacement, breakage, crushing, and other loss caused by strong wind during a culture process, and preventing rain washing. A dry-wet rhythmic irrigation program and spraying of water and fertilizers are adopted, thus preventing autolysis of algal filaments in wet states for long time, and increasing the growth rate in unit area to the utmost. The method is suitable for large-scale culture of the nostoc flagelliforme.

The invention belongs to the technical field of soil remediation, and particularly relates to a plateau alpine land remediation device which comprises an outer cylinder, an inner cylinder and a crushing roller, wherein a first handle is mounted on the outer cylinder, the crushing roller comprises a rotating shaft and a sleeve, crushing fins are arranged on the sleeve, the sleeve is mounted on the rotating shaft, rolling wheels are mounted at the two ends of the rotating shaft, a first fixing disc is mounted on the rotating shaft, the inner cylinder is fixedly mounted on the first fixing disc, connecting cylinders are arranged at the two ends of the inner cylinder, the inner cylinder is arranged in the outer cylinder in a penetrating mode, the connecting cylinders are fixed to the outer cylinder, second fixing discs are mounted at the two ends of the outer cylinder, the first fixing disc and the second fixing discs are rotationally connected with the rotating shaft through bearings, a first feeding port and sieve holes are formed in the outer cylinder, a second feeding port and a discharging port are formed in the inner cylinder, and a first opening and closing piece and a material shoveling piece are mounted on the rotating shaft. Therefore, the problems that at present, excrement blocks are not uniform in a natural distribution state and soil absorption is not facilitated for self-repairing are solved.

The invention discloses a child-mother type anti-riot tear gas cartridge, which comprises: a gland, a plurality of tear gas bullets, a propellant box, a primer and a launcher; a primer is arranged at the bottom of the launcher, a propellant box is arranged above the primer, and the upper part of the propellant box is stacked and arranged For multiple tear gas bullets, a gland is set on the top of the launch tube, and the primer fires ignite the propellant box, which in turn ignites multiple tear gas bullets. Multiple tear gas bullets rush out of the launch tube and burn in the target area to prevent riots. The invention is provided with a plurality of tear gas bullets, the bullets are axially arranged in series in the launching tube, the fire transmission is carried out by using a central fire transmission hole, and the structure is simple and compact; Natural distribution, multi-point smoke, effectively prevent reverse throwing, and greatly increase the power and area of ​​a single ammunition.