1036results about How to "The result is stable" patented technology

An artificial flagstone for use in combination with other similar flagstones for covering a surface with a natural random look, the flagstone having a generally hexagonal body comprising a first, second, third, fourth, fifth and sixth consecutive vertices; a first pair of generally congruent irregularly-shaped first and second sides extending radially from the first vertex and being rotationally spaced from each other by an angle α of approximately 120°; a second pair of generally congruent irregularly shaped third and fourth sides extending radially from the third vertex and being rotationally spaced from each other by an angle β of approximately 120°; a third pair of generally congruent irregularly shaped fifth and sixth sides extending radially from the fifth vertex and being rotationally spaced from each other by an angle ω of approximately 120°; wherein the sides of each of the first, second and third pair of sides have at least one split deviation along their length and are respectively rotational images of each other, whereby in use in combination with other flagstones, each one of the sides is matingly engageable with the sides of an equivalent pair of sides of a neighbouring flagstone.

The invention belongs to the technical fields of biochips and diagnostic reagents, and discloses a method for detecting various respiratory viruses, and primers and probes thereof. In the invention, nucleotide sequences of 14 respiratory viruses, namely adenovirus, human metapneumovirus, influenza virus A, influenza virus B, respiratory syncytial virus, bocavirus, rhinovirus, coronavirus (HKU1, NL63 and SARS), and parainfluenza virus (type I, type II, type III and type IV) are analyzed, and corresponding reverse transcription primers, PCR primers and specific probes are designed. Specific gene segments are amplified by reverse transcription and multiple asymmetric PCR methods; a fluorescence-coded microsphere group coupled with the virus specific probes and the PCR amplification product are incubated and hybridized by liquid phase chip technology; and finally the Bio-PlexTM200 is used for detection. The detection method has the advantages of high flux, high specificity and sensitivity, stable results and good repeatability, the detection method is easy to operate, and the detection speed is high.

An automatic image-processing method for applying a mask onto a target image includes the following steps: a) obtaining a target image, in particular an image of a face; b) for at least one area of the target image, identifying the reference points corresponding to at least the points that make it possible to define a typical case of spatial imperfection; c) for at least that area, applying at least one test for detecting spatial imperfection by comparing the target image with a reference image; d) according to the spatial imperfection detected, identifying a spatial correction mask to be applied to the area of the image including said imperfection; and e) applying the mask onto the pertinent area of the target image. An image-processing system also is provided.

The invention provides a view-variable three-dimensional reconstruction device based on laser radar swinging. The view-variable three-dimensional reconstruction device comprises a laser radar swinging mechanism, a mechanism movement control module and a three-dimensional point cloud reconstruction module, wherein the laser radar swinging mechanism comprises a single-line laser radar, a laser radar center fixing mechanism and a laser radar swinging control mechanism, the single-line laser radar is three-dimensional point cloud data collecting equipment, the laser radar center fixing mechanism bears the weight of the laser radar and fixes the center of the laser radar, and the laser radar swinging control mechanism achieves regulation of the view range of the laser radar and drives the laser radar to swing in an omni-directional manner; the mechanism movement control module controls the movements of the laser radar swinging mechanism and measures the pose of the laser radar in real time; the three-dimensional point cloud reconstruction module splice multiple frames of laser radar measuring data to reconstruct spatial three-dimensional point cloud. The view-variable three-dimensional reconstruction device has the advantages that measuring and reconstruction of a three-dimensional environment can be completed, the view range and point cloud distribution can be regulated according to needs so as to emphasized measuring of the space information of different positions, and the device is high in precision, high in reliability and good in adaptability.

Some embodiments of the invention provide solid compositions that, when exposed to or otherwise placed in an aqueous solution, will release chlorine dioxide and surfactants, producing a soapy, aqueous solution containing chlorine dioxide. These solid compositions comprise an alkali chlorite salt, a solid acid source, and a surfactant. In some other embodiments, the solid compositions produce a non-soapy aqueous solution containing chlorine dioxide. These solid compositions comprise an alkali chlorite salt and a solid acid source.

The invention discloses a method for aerially photographing a crop canopy picture for crop nitrogen analysis and soil fertilization guidance by using an unmanned aerial vehicle. The crop canopy picture is aerially photographed through the unmanned aerial vehicle, meanwhile, aerial latitude and longitude corresponding to the crop canopy picture are obtained, and crop nitrogen analysis and soil fertilization guidance are carried out by combining picture information and latitude and longitude information. According to the obtained method, large-area farmland information can be quickly obtained, influence and limitation of crop growth and farmland environments are avoided, a crop nitrogen state is diagnosed by using color parameters of the picture and the nitrogen fertilizer topdressing index is recommended, the method is accurate and reliable, accurate management of a nitrogen fertilizer is facilitated and better economical and ecological benefits are achieved. The method is fast and simple in operation, stable and reliable in structure, low in operation cost and beneficial to farmland application and popularization; and fine farming of the farmland can be significantly promoted. The aerial photograph equipment of the unmanned aerial vehicle is simple in structure and beneficial to efficient and stable aerial photographing of the crop canopy picture.

The invention discloses an electric car charging dispatching method and system based on the Internet of Things. The dispatching system comprises a sensing layer, a network layer and an application layer. The sensing layer comprises an electric car sensing component for obtaining electric car preference data information and a charging station sensing component for obtaining charging station preference data information. The network layer is a data center server of the Internet of Things and is used for data transmission between the sensing layer and the application layer. The application layer is used for computing dispatching results according to data information collected by the sensing layer and sending the dispatching results to the network layer. The whole system is established based on three models of the Internet of Things, the interconnection feature of the Internet is fully used, a dispatching result generated by a used Gale-Shapley algorithm has the stability on Pareto efficiency, so that best matching of an electric car and a charging station is achieved, electric car dispatching is carried out efficiently in order, therefore, the queuing waiting time of electric cars is shortened, and charging station resources are used reasonably.

The invention relates to an automatic prewarning method for strong storms. Doppler weather radar data is used. According to identification on storms, false combination of storms can be successfully identified by adopting a method based on mathematical morphology, namely expansion operation and corrosion operation are comprehensively used during multi-threshold identification, and relatively near storms can be separated from a storm cluster; then, according to tracking of the storms, the tracking process is greatly simplified by adopting a sequential monte carlo method, and situations of splitting, combination and leakage detection of the storms can be handled; and finally, the storms are prewarned, namely linear fitting extrapolation prewarning is realized by being combined with a motion vector field obtained by an optical flow method. According to the method, complicated situations that radar echo is densely distributed and frequently split and combined can be handled. The method has the advantages that a prewarning software system is arranged in provincial and municipal weather stations; high-convection weather prewarning service is provided; and the urgent demands for preventing and reducing disasters in China are met.

The invention discloses a method and a kit for detecting pathogenic bacterium of a food source by a test strip based on NASBA (Nucleic Acid Sequence Based Amplification) and belongs to the technical field of biological detection. The method comprises the following steps of: (1) extracting RNA of pathogenic bacterium of the food source; (2) designing an amplification primer; (3) performing NASBA reaction; (4) designing a catching probe; (5) preparing a nano-gold probe; (6) preparing a collaurum nucleic acid strip; and (7) detecting the samples. The kit using the method to detect Listeria monocytogenes comprises primers (as shown in SEQ ID NO. 1 and 2), enzyme, buffer solution, RNaseH, RNA enzyme inhibitor, dNTPs, NTPs, probes (as shown in SEQ ID NO. 4, 5 and 6) and collaurum nucleic acid strip, etc. By combining NASBA with detection of the test strip, the method disclosed by the invention can realize qualitative or quantitative detection, and has low cost, high detection speed, good specificity, high sensitivity and safety in use.