59 results about "Natural science" patented technology

This invention implements a system for automatic recognition of human-assisted drawings, in a plurality of forms, be they hand-drawn on paper, marker board, with a stylus on a computer, made with a mouse, stylus, finger or other instrument on a personal computer, tablet computer, smart telephone or other medium. At the core of the invention is a pattern recognition engine, aimed at recognizing the graphical objects, handwritten text, equations or interconnects in the input image, and interpreting the significance of their relative association. The apparatus offers error correction, vector representation of the input sketch, as intermediate output, along with the recognized patterns, arranged in a hierarchical data structure, ready to be passed on for mining or assessment. The recognized patterns can be associated with mechanical design, electrical circuit design, mathematics, biology, physics, chemistry, computer science, natural sciences, medicine, or any other science- or engineering-based discipline making use of human-assisted drawings.

In order to solve the high-speed cancer excited state problem, a biological retarder is needed. Cancer energy is converted into intramolecular transfer or other vibrational state transfer through collision. By means of the nucleus retarder principle, a neutron and a retarder atomic nucleus are subjected to collision so that the speed can be decreased, and the retarder which does not absorb neutrons and does not react with neutrons is selected. An important task of the cancer biology and even the natural science is that which material can bear a cancer nuclear fission biological retarder. According to repeated experiments, various safety factors are synthesized, and finally a biological moderator is correctly selected through a successful experiment. Bifidobacterium is free of toxicity and harm to a body, and the biological retarder can be ideal for treating a cancer. In the future, more microorganism retarders will be produced, the biological retarder is used for decelerating tumors, a proper amount of deceleration molecular nuclear energy can be used as senile cell addition nuclear energy, and the biological retarder gives power to biological science and will play an indispensable critical role.

This invention relates to methods and devices for the production of micro-structured substrates and their application in natural sciences and technology, in particular in analysis and detection systems based on artificial and biological lipid membranes. The structure is preferably a hole or a cavity or channel and is obtained by spark perforation. Energy, preferably heat, is applied to the region to be structured so as to reduce the amplitude of voltage required and/or soften the material. The electrical parameters of the spark perforation are feedback-controlled.

The invention provides an automatic division method for pulmonary parenchyma of a CT image. According to the automatic division method, the CT is divided through carrying out a random migration algorithm for two times to obtain the accurate pulmonary parenchyma; in the first time, the random migration algorithm is used for dividing to obtain a similar pulmonary parenchyma mask; and in the second time, the random migration algorithm is used for repairing defects of the periphery of a lung and dividing to obtain an accurate pulmonary parenchyma result. Seed points, which are set by adopting the random migration algorithm to divide, are rapidly and automatically obtained through methods including an Otsu threshold value, mathematical morphology and the like; and manual calibration is not needed so that the working amount and operation time of doctors are greatly reduced. According to the automatic division method provided by the invention, a process of 'selecting the seed points for two times and dividing for two times' is provided and is an automatic dividing process from a coarse size to a fine size; and finally, the dependence on the selection of the initial seed points by a dividing result is reduced, so that the accuracy, integrity, instantaneity and robustness of the dividing result are ensured. The automatic division method provided by the invention is funded by Natural Science Foundation of China (NO: 61375075).

A space-borne laser radar detection system for detecting marine atmosphere parameters comprises a tunable laser subsystem, a reception optical subsystem, a signal processing subsystem, a control and data processing subsystem, wherein the tunable laser subsystem generates 935nm, 761nm laser and irradiates the laser to the atmosphere above a sea, the reception optical subsystem separates two optical signals of different wavelengths from backward scattering signals after the laser is irradiated to the atmosphere, the signal processing subsystem carries out photoelectric conversion, amplification and analog-to-digital conversion on optical signals, and the control and data processing subsystem calculates marine atmosphere temperature, humidity and density according to the digital signals sent by the signal processing subsystem. Compared with the prior art, the space-borne laser radar detection system can detect atmospheric temperature, humidity, density parameter distribution of the atmosphere above a sea, and plays an important role for researching meteorological environment above a sea, climate change, land-ocean air steam transmission, atmospheric flow and other natural science rules and improving offshore work and sea-crossing flight.

An eddy current heating type pipeline defect infrared imaging testing device and a test method belong to the field of nondestructive testing. The device is composed of an induction heating unit, an image acquisition unit and an image processing unit. A measured buried pipeline undergoes non-contact local micro-heating by the utilization of an eddy current heating probe of the induction heating unit, the buried pipeline will generate eddy current to heat pipe wall and radiate outwards infrared rays. Under the assistance of an infrared laser pointer, an infrared thermal imager is directed at the measured pipeline to carry out image acquisition. Information of the acquired images is transmitted to a computer through an image transmission interface. After the image information is processed by the computer, whether the measured pipeline has defects and defect shape and actual size are calibrated. The invention is funded by the program of National Natural Science Foundation of China (51365019). The testing device can be cooperatively used along with a pipeline detection robot and is used for real-time online detection of steel structural buried pipelines.

The invention relates to a measurement method of a seepage flow movement rule and belongs to the field of research on basic theory of natural science and vadose zone hydrology. The method comprises the following steps: carrying out field measurement of seepage-in flow and seepage-out flow of stressed section, downstream water level height of the section, upstream water level height of the section, downstream water level distribution area of the section, seepage-out and seepage-in section areas, virtual degree or solidity of the section; then building a relation equation among the quantities according to an opposite and uniform action rule equation set; and finally solving unknown quantities via an equation solving method so as to achieve the purpose of solving practical problems or prediction problems. The measurement method of the seepage flow movement rule has the beneficial effects of showing the theory, the formula and the method for researching, calculating and measuring the seepage flow rule, which conform with the objective laws, enabling the scientific research, experiment and actual measurement of the seepage flow to really embark on a scientific, systematic, theoretical, practical and programmed way, ensuring that the measurement work of the seepage flow rule is not detoured again, and saving manpower, material resources and financial resources.

The invention belongs to the fields of social data analysis and visualization, relates to the technologies of social network analysis, information analysis, information retrieval and filtering and sorting, and discloses a multi-mode-supported retrieval of leading figures in academic fields and a visualized navigation system. The retrieval of leading figures in the academic fields and the visualized navigation system include 1 data acquisition and processing, 2 multi-mode retrieval and 3 visualized representation of search results and relevance among the search results with an appropriate visualized placement algorithm applied, wherein 1 the data acquisition and processing mainly relate to author correlating validation in a collecting stage and relates to analysis and extraction of data internal relevance; 2 the multi-mode retrieval includes (1) retrieval based on author names, (2) retrieval based on fields and (3) retrieval based on contents, wherein (1) the retrieval based on the author names copes with conditions that a user has certain impression of the name an author but do not remember the name of the author very clearly, (2) the retrieval based on the fields which are divided according to the subject division system of international natural science foundation can retrieve the author with high influence, and (3) the retrieval based on the contents can retrieve relevant papers and authors of the papers by searching the contents and the aim is to collect the relevant authors to meet the needs of learners for knowledge; and 3 the search results and the relevance among the search results are visually presented with the appropriate visualized placement algorithm applied.

The invention provides a mathematical expression similar distance measurement method. The method comprises the following steps of performing compatibility retrieval on query expressions in a database to obtain a plurality of result expressions; analyzing the query expressions, replacing the query expressions in the result expressions with unified identifiers ''\replace'', and analyzing the result expressions after replacement; constructing a hesitant fuzzy set corresponding to each expression according to an analytic result of the expression; and calculating a similar distance and similarity between the result expression and the query expression according to the constructed hesitant fuzzy set. Through the method provided by the invention, the sorting of mathematical expression search result sets is closer to the query expression, so that an arrangement sequence of retrieval results seen by users can better reflect demand degrees of the users to the results. The method is funded by the national natural science foundation (a project approval number: 61375075).

The invention discloses a visual content management method and system. The system comprises a cloud service system, a management system and a resource management system which are in communication connection. According to the visual content management method and system, display and play control of content resources formed by combining picture, video and text contents supporting different themes canbe displayed. The method is suitable for interactive display of digital resources such as digital blog, knowledge encyclopedia, humanistic history, natural science and political culture, and can alsosupport school autonomous propaganda contents such as campus culture propaganda. In addition, an appropriate standby server can be selected according to the type of the abnormal server, the optimal requirement of the system is met, a user can conveniently know and know the physical address where the abnormal server is located and the abnormal type of the server in time through the visualization mode, and the abnormal recovery efficiency of the server is improved.

The invention belongs to the technical field of satellite remote sensing, and particularly relates to a satellite remote sensing image atmospheric correction spectral analysis method. Atmospheric correction is performed according to spectral information of the image completely with no requirement for equivalent precision of the image topographic relief area and the flat area after DTM correction or synchronous atmospheric measurement data or ground object reflectivity measurement data, and the correction precision is obviously better than that of the image corrected by the present popular atmospheric correction software. The output atmospheric image and the ground object image are reflectivity images and can be synthesized into true color images and used for quantitative analysis. Landform information and BRDF information of the original image are completely reserved. Partitioned correction is performed on a huge image and the images are spliced into a complete image without lapping defect, and general atmospheric correction software can be developed. The satellite remote sensing image atmospheric correction spectral analysis method is the scientific achievement of the China's national natural science fund ("remote sensing image atmospheric correction spectral vector analysis model", the grant number: 41371394) project.

The invention relates to a natural sciences learning device, especially to a natural sciences learning device for early education of kids. The natural sciences learning device comprises a base plate, a left side plate, a first circular disk, a trapezoidal block, an L-shaped guide rod, a top plate, a left bearing seat, a slide rail, an upper bearing seat, a slide block, a tooth bar, a second connecting rod, a second rotating shaft, a second bevel gear, a U-shaped support, a stay wire, an artificial butterfly, a first rotating shaft, a first gear, a fixed block, an elastic component, an artificial flower, a contact wheel, an L-shaped support rod, a motor, a first conveyor belt, a second circular disk and the like; and the left side plate, the first circular disk, the trapezoidal block and the L-shaped guide rod are fixed on the base plate from left to right successively. The learning device enables a good natural sciences learning effect of the kids, is high in learning efficiency and improve the learning interests of the kids.

The invention belongs to the technical field of organic chemistry, and discloses a preparation method of a visible-light response high-activity TiO2 composite photocatalyst. The method is characterized in that the adjustment and control of the structure of a Dawson structure substituted HPC@TiO2 molecular imprinting photocatalyst and the improvement of PPCPs degrading performance are treated as context objects; rare earth (transition) metal substituted counter cation visible-light response HPC is synthesized by methods such as the double decomposition method; the molecular imprinting TiO2 is prepared by methods such as a sol-gel method; a Dawson structure substituted HPC@TiO2 molecular imprinting photocatalyst is constructed by methods such as an impregnation method; FTIR and the like areused for representation; and typical PPCPs p-acetamidophenol, ethyl p-hydroxybenzoate and the like are degraded by visible light to observe the photocatalytic activity of a probe in reaction. The support number of the method in Natural Science Foundation of China is 51562016.

Provided is a method for treating a stony desertification zone through frangipani interplanting cash crops and accompany-cultivated bees. Short cash crops are interplanted under frangipanis, bees are cultivated, and stony desertification zone comprehensive treatment is carried out. According to the method, the natural science law is observed, manual quick vegetation recovering in the stony desertification zone is achieved in a large-area-high-survival-low-cost mode, conservation of soil and water is achieved, ecotope is improved, biodiversity is used, the cash crops are interplanted between the rows of the frangipanis, based on the fact that the flowering phase of frangipani trees is long (6 months-8 months) and nectar sources are stable, in addition, some wild flowers can complement nectar sources, bee industry is introduced, zoology vegetation recovering in the stony desertification zone can be well improved, and local masses can obtain income quickly. By recycling and deep processing of flowers, leaves and sap of the frangipanis, environment benefit, social benefit and economic benefit are achieved scientifically, and certain effect is achieved on harmonious development of human society.

The invention provides a child health detection system, which comprises a detection terminal, a first intelligent terminal, a second intelligent terminal and a server, wherein the detection terminal is used for carrying out body detection on a patient, health index data collected by the detection terminal is stored after being associated with the identity of the patient, registration information and time information, and meanwhile, the health index data is uploaded to the server; the server is used for receiving and storing the health index data; and meanwhile, the received health index data is sent to the first intelligent terminal of a corresponding patient and the second intelligent terminal of a corresponding doctor. According to the system, the problem of difficulty in child detectioncan be solved, in addition, the working efficiency of doctors can be obviously improved, and the system is especially suitable for the pediatric department with low working efficiency and is also canbe used for adult departments. The technology disclosed by the invention is subsidized by the Natural Science Foundation of China (81770512) of 2017 and the "Sanming Engineering" Project of ShenzhenMunicipal Health Commission (SZSM201812055).

The invention discloses a novel aqueous solution sprayable trimethylene dioxythiophene polymer blue-transparent electrochromic material, a preparation method thereof, a component and an application. The electrochromic material can be sprayed to the surface of ITO (indium tin oxide) glass in an aqueous solution form, and then acid treatment is performed to form a film. The electrochromic material is low in driving voltage, transparent in oxidation state, high in contrast, short in response time and applicable to electrochromic devices such as an intelligent window and a display. The material issubsidized by an Anhui university natural science research project (KJ2017A482, KJ2016JD16), an Anhui university excellent youth talent support planned project (gxyq2017023), an advanced building material Anhui key laboratory open topic (JZCL201602ZZ) and a university student innovation business startup training planned project.

Disclosed is an intelligent ecological IOT (Internet of Things) suite teaching aid. The intelligent ecological IOT suite teaching aid comprises an intelligent ecological enclosure, a planting groove,an artificial intelligence voice module, a sensing module, a light module, a ventilation module, a control module and an education APP terminal, wherein the artificial intelligence voice module, the sensing module, the light module and the ventilation module are arranged in the intelligent ecological enclosure, the artificial intelligence voice module is used for voice prompt, the light module isused for supplementing light, the ventilation module is used for adjusting the concentration of oxygen and carbon dioxide, and the education APP terminal is used for receiving processing data and video live broadcasts. The control module comprises an intelligent gateway, a cloud server and a routing device, wherein the intelligent gateway is in communication connection with the cloud server through the routing device, and the cloud server is in wireless communication connection with the education APP terminal. The intelligent ecological IOT suite teaching aid enables students to observe the growth state of plants in classrooms and at homes, thereby deepening their understanding of natural science and developing their abilities of operation, independent design experimenting and observing research problems.

The invention discloses a natural science popularization device based on image interaction. A control unit is respectively connected with a display unit, a gas sensing unit and a touch screen. The control unit controls the display unit according to an airflow detection signal of the gas sensing unit to display a preset image. The control unit controls the display unit according to a detection signal of the touch screen to display a preset image. Through the above optimization-designed natural science popularization device based on image interaction, structure design is reasonable, a participant realizes interaction with the images through an air blow and a touch, people are enabled to intuitively feel reaction of a plant in a natural world after the wind blow and the touch indoors, and interestingness of science popularization is increased.

The invention provides a similarity measurement method for evaluating languages based on a mathematical expression. According to the method, an interval value hesitant fuzzy language attribute set based on the mathematical expression is constructed, the preference degree relation among the attributes is found, the weight possibility probability value of each attribute is determined, the similarity between the result expression and the query expression is calculated, and finally the required mathematical expression retrieval result is displayed to a user. According to the method, starting from elements forming the mathematical expression, the interval value hesitant fuzzy language set specially used for expression query is formed by utilizing operators, operands and query keywords, so that the uncertainty and fuzziness in the formula can be expressed to the maximum extent; the problem of one-sidedness decision caused by the fact that a single determined value represents a certain object is avoided, the method is closer to the expression and description mode of people for objects, and the decision effect is more credible and flexible. The invention is subsidized by natural science fund of Hebei Province (project approval number: F2019201329).

The invention discloses a novel technology for making a soil monolith for exhibition and teaching, which belongs to the field of soil specimen making. The technology includes the following steps: S1,determining the specification and shape of a specimen according to the soil property and the teaching or exhibition need; S2, carrying out physical finishing and drying of a whole original soil profile; S3, carrying out moth prevention and impregnation treatment; S4, selecting and sticking a specimen bearing backboard; S5, carrying out surface treatment of a rough specimen; and S6, carrying out specimen stereotyping and moisture-proof and oxidation-proof treatment. The specification and shape of the specimen made in the invention can be determined according to the needs of experimental teaching of soil courses and popularization of common knowledge of natural sciences, the specimen can directly reflect the structure and hierarchy of soil profiles, and the physical and chemical properties of soil basically remain in the original state. The specimen is portable and easy to transport and store, and is suitable for long-term use. The specimen can be displayed arbitrarily in classrooms andexhibition halls, including being placed uprightly, obliquely or horizontally.

Based on state of outwardness of objects, original codes of Chinese information is divided into two categories: one is object state and characteristic system of natural science, and the another is object state and characteristic system of social science. The invention discloses method for arranging Chinese characters. Original codes of Chinese information is utilized to teach learning characters through spelling shapes of character, and provides foundation of application of Chinese character order.