190results about How to "Expand the scope of research" patented technology

The invention is mixed simulation system of grid electromagnetic transient state and electromechanical transient state and simulation method thereof. The simulation system of the invention comprises a electromechanical transient state simulation system for electromechanical transient state simulation calculation for a first grid, an electromagnetic transient state simulation system for electromagnetic transient state simulation calculation for a second grid; an interface process control system is set between the electromechanical transient state simulation system and the electromagnetic transient state simulation system, for accomplishment of communication with the two simulation systems simultaneously, inner organic connection of the two simulation systems. The simulation method of the invention comprises: the electromechanical transient state simulation system processes electromechanical transient state calculation for the first grid, and transmits a first relay variant to the electromechanical transient state simulation system through the interface process control system; the electromagnetic transient state simulation system processes grid transient state calculation for the second grid, and transmits a second relay variant to the electromechanical transient state simulation system through the interface process control system, and influences on the electromechanical transient state calculation for the first grid. The simulation system of the invention synthesizes advantage of and electromechanical transient state simulation and electromagnetic transient state simulation.

The invention discloses a frozen bovine semen diluent, and the consumption amounts of all the raw materials in 100ml of the diluent are: 0.8 to 1.2g of fructose, 1.4 to 1.6g of sodium citrate, 2.3 to 2.6g of TRIS, 7.5 to 9.5g of low-density lipoprotein, 5 to 8ml of glycerol, 0.085 to 0.12 million IU of penicillin and the rest is distilled water. The preparation method is that: the fructose, the sodium citrate and the TRIS are dissolved in the distilled water to be prepared into a base liquid; penicillin G sodium and the low-density lipoprotein are added in the base liquid to prepare a I liquid; the glycerol is added in the I liquid to prepare a II liquid; then the pH value is adjusted to 6 to 7.5, then a filtration and a sterilization are carried out, and the liquid is cooled until reaching the room temperature and then arranged in a refrigerator of 2 - 5 DEG C for standby. The frozen bovine semen diluent of the invention has good and reliable effect, which can provide high-quality and excellent straw frozen semen for bovine artificial insemination and have very broad market application prospect.

The invention relates to a preparation method of microcapsules for rubber material self-healing, belonging to the field of self-repair microcapsules. By adopting an in-situ polymerization method, the wall material urea-formaldehyde resin is coated on the surface of the repair agent core material dicyclopentadiene liquid drop to form microcapsules. An impregnation film spreading method is utilized to compound the microcapsules with natural latex, so that the microcapsules can break and release the repair agent to fill up the cracks and heal the wounds when the rubber substrate is damaged. The invention provides a new technical way for prolonging the service life of the rubber material.

The invention relates to the technical field of cartography and geography information systems, and specifically to a DEM-based river valley cross-section morphology algorithm. The algorithm includes the following six steps of (1) pre-processing data based on a DEM; (2) calculating sectional river network data; (3) calculating river network vertical data; (4) drawing a contour line of the valley bottom of a river valley; (5) calculating a width value of the valley bottom; and (6) drawing a profile map of the cross-section morphology of the river valley. The important quantitative indictors for describing the morphology of the river valley can be obtained by calculation according to the invention, which are the contour line of the valley bottom of the river valley, the width value of the valley bottom of the river valley and the profile map of the cross-section morphology of the river valley. These quantitative indicators can reveal the formation and development of a river, the construction situation of a valley landform and so on, and are of great theoretical significance for the study of the classification and management of rivers, the prediction of a river blocking probability of the landslide mass, the calculation of ground motion parameters and the like.

The invention relates to an electromagnetic transient and electromechanical transient hybrid simulation method based on a real time digital simulator (RTDS), belonging to the technical field of power system transient simulation. The method comprises the following steps: an electromechanical transient simulation system carries out electromechanical transient real-time simulation computation on a first power system; the RTDS carries out electromagnetic transient real-time simulation computation on a second power system; the electromechanical transient simulation system transfers the voltage and amperage of the first power system to the RTDS via an interface process control system and the RTDS carries out electromagnetic transient computation on the second power system by utilizing the voltage and amperage; and the RTDS transfers the voltage and electric power, which are obtained through simulation computation, of the second power system to the electromechanical transient simulation system via the interface process control system and the electromechanical transient simulation system carries out electromechanical transient computation on the first power system by utilizing the voltage and electric power. The method is conductive to understanding the dynamic characteristics of the electromechanical transient process of large-scale power systems and the electromagnetic transient process of a certain specific part and can coordinate the scale, precision and velocity of simulation.

The invention provides an electrified thermal stretching testing device and a stretching testing method. The electrified thermal stretching testing device comprises a unidirectional stretching testing device and a temperature control device, wherein the unidirectional stretching testing device is insulated by a clamp. A temperature measurement unit, a power adjuster and a power supply device in the temperature control device are connected in series. According to the electrified thermal stretching testing device, an infrared temperature measurement sensor is used for monitoring the surface temperature of an electrified stretching testing piece at any time, so that the electrified thermal stretching testing device has the characteristics of rapid responding time, no contact, safety in utilization and long service life. Meanwhile, the temperature of the stretching testing piece in an electrified thermal stretching process can be basically stable so that the temperature of the stretching testing piece can be stabilized at different temperatures so as to be tested, and the research range of mechanical properties of materials is enlarged.

The invention discloses a method and a system for establishing a smart city 'multi-specification-in-one 'evaluation system. The establishment method comprises the following steps: constructing a framework of a smart city multi-standard-in-one effect evaluation index system, and forming a first-level index and a second-level index; establishing a three-level index of a smart city 'multi-standard-in-one' evaluation index system; quantifying the third-level index through an index quantification method; determining the weights of the first-level index, the second-level index and the third-level index; and calculating the score value of the smart city'multi-specification-in-one', and defining the evaluation level of the 'multi-specification-in-one' effect of the smart city. The implementation system comprises an evaluation index management module, an evaluation input module, an evaluation output module and a user management module. According to the method, the blank of the evaluation methodfor the implementation effect of multi-specification integration of the smart city is filled, the research category and the research method in the field are expanded, and the method has foresight, scientificity and operability.

The invention provides a model ice pushing device. A side bridge of a trailer is provided with two die fixing holder, a lower end of a first die fixing holder is provided with an open water test case, a propeller model is arranged on the open water test case, a lower end of a second die fixing holder is provided with a linear module group, a servo motor is mounted on an end part of the linear module group, an output shaft of the servo motor is connected with a leading screw of the linear module group, a connecting plate is fixedly connected on a sliding block of the linear module group, a lower end of the connecting plate is at least provided with a pair of distance-adjustable connectors, lower ends of each pair of distance-adjustable connectors are provided with model ice fixing devices, model ice is placed in the model ice fixing devices, and the side bridge of the trailer is also provided with a control system. The model ice pushing device is suitable for testing and research on model ice of different sizes and different moving states and a ship propeller, and mutual effects between the propeller and ice during ship navigation in an ice zone can be simulated in real way; the model ice pushing device is advantaged by high stability, convenience of operation, high control precision and the like; test accuracy is effectively improved.

The invention relates to the field of urban planning, and provides an urban multi-source data-based street space quality measurement evaluation method, which comprises the following steps of: obtaining urban road network data and interest point data in a research area, and preprocessing the urban road network data and the interest point data to obtain street view sampling points; obtaining a plurality of groups of streetscape image data through streetscape sampling points; inputting each piece of streetscape image data into the trained semantic feature extraction model to obtain a streetscapesemantic element data table; constructing a measure evaluation index of the urban street space quality through a street view semantic element data table, the interest point data and the urban road network data; and obtaining the distribution rule and the distribution mode of the urban space quality through the measure evaluation index of the urban street space quality. According to the invention,the street quality is researched on the microcosmic scale, the research range is widened, research is carried out on the perspective of the urban macroscopic level, and the accuracy of street space quality measurement can be remarkably improved.

The invention discloses a biological cell freezing antifreeze, and 100ml of the cell freezing antifreeze consists of the following raw materials: 0.025 to 0.3g of kelp polysaccharide, 2.0 to 3.5g of glucose, 0.5 to 1.5g of sodium citrate, 60 to 80ml of distilled water, 10 to 20ml of albumin, 5 to 18ml of glycerol and 0.05 to 0.15 million units of penicillin. The preparation method is that: the glucose and the sodium citrate are dissolved in the distilled water to prepare a base liquid; the albumin is added, the mixture is mixed evenly, and the penicillin is added to prepare a I liquid; the glycerol is added in the I liquid to prepare a II liquid; the kelp polysaccharide is added in the II liquid for even mixing; the pH value is adjusted to 6 to 7.5, then the filtration and sterilization are carried out, and the mixture is cooled until reaching the room temperature and then arranged in a refrigerator of 2 to 5 DEG C for standby. The cell freezing antifreeze is applicable to the cryopreservation of mammalian semen, somatic cells, oocytes, early embryos, organs and tissues, in particular to the cryopreservation of the semen of various mammals.

The invention discloses a chip level PCR-LVCE integrated system which comprises a chip level PCR-LVCE micro fluidic chip, a chip level PCR-LVCE detection and a control interface circuit as well as a chip level PCR-LVCE detection and control system based on an SOPC (system on programmable chip) technique; the integrated system achieves ionophortic separation and electrochemical detection of different components of to-be-measured test samples in NIOSII soft core processor control, to-be-analyzed test sample micro mixing of relevant interface circuit control, micro fluid liquid direction judgment in an LVCE chip and variation field intensity forming movements on an LVCE separation micro channel. The chip level PCR-LVCE integrated system provided by the invention has the advantages of rapidity, simplicity, convenience, high integrated degree and the like, can effectively improve the detection efficiency, are higher in expansibility, real-time property and safety compared with the prior art, and can be widely applied to the fields of biochemistry, medicine, environment, criminal investigation and the like.

The invention discloses a multiferroic liquid and a preparation method of the multiferroic liquid. The multiferroic liquid of the invention is obtained via the following steps: uniformly mixing a base fluid and a surface active agent as a mixed liquid; then adding ferroelectric nano-particles and magnetic nano-particles in the mixed liquid, shaking the mixture and putting the mixture in a sealed container, and putting the container in a shaking table to shake for more than half an hour to make nano-particles evenly dispersed in the mixed liquid, thereby obtaining a stable suspension liquid, namely the multiferroic liquid. The multiferroic liquid of the invention not only has magnetism and ferroelectricity, but also has fluidity, and is very sensitive to a magnetic field and an electric field. Compared with solid ferroelectric material, the multiferroic liquid of the invention has smaller coercive force, and the particles are easy to rotate under the electric field or the magnetic field. The multiferroic liquid of the invention also has a magneto-optic effect and a refraction effect, which are not possessed by the solid multiferroic material. The invention presents the multiferroic liquid and the preparation method of the multiferroic liquid for the first time so as to develop a new direction for researching the multiferroic material.

The invention discloses a Maillard flavor peptide with an anti-oxidation function and a preparation method thereof, and belongs to the field of food additives. Zein peptide, methionine, cysteine and xylose are used as raw materials to prepare the Maillard flavor peptide having both potato flavor enhancement and anti-oxidation functions based on a Maillard reaction technology. The ratio of amino acid is regulated, so that the prepared Maillard peptides is different in flavor, and can be used as a safe, efficient and multifunctional food additive for partially replacing chemically synthesized antioxidants in food while enhancing the flavor characteristic of the food; the additional functions of Maillard reaction products in the conventional sense are added, and the research and application range of the Maillard flavor peptide in the food additive field is broadened.

The invention provides a method for preparing a boron nitride nanosheet by using a eutectic salt to strip boron nitride powder at high temperature. The method comprises following steps: grinding and mixing sodium chloride/potassium chloride eutectic salt with boron nitride powder, thermally treating at high temperature, and preparing in steps such as ultrasonic treatment, filtering, cleaning and drying to obtain the boron nitride nanosheet. The stripping method provided by the invention enables the preparation of a boron nitride nanosheet which is high in aspect ratio (that is large in lateral dimension and small in thickness), low in defect quantity and complete in structural features, and this method is suitable for batch production, does not relate to the use of toxic corrosive chemical reagents and is easy to perform.

The invention provides a method for obtaining a liquid-solid conversion TTT curve. The method is characterized by being suitable for the material of which a melting point is below 450 DEG. C and an induction period is less than 10-3s. A used test sample is either a single particle with size of 1 to 50microns or a film with thickness of 1 to 10microns, the used sample is placed in a testing region of a sensor under an optical microscope, and a metallographic microscope is utilized for determining the size of the test sample; an actual melting point of the test sample is determined by a flash scanning calorimeter; the material is heated to be in a liquid state completely and insulated for a proper time, and then the liquid state test sample is quickly cooled to the melting point and then is insulated at the certain temperature, and the induction period is obtained; an isothermic nucleation step is repeated to obtain the induction periods under the different temperatures; and the induction periods are marked by the time t as a horizontal ordinate and the temperatures T as the vertical coordinate and are fitted by the smooth curves, so that the TTT curve of the material is obtained. According to the method, the speed is fast, the efficiency is high, the shortages of the traditional DSC (differential scanning calorimetry) and DTA (differential thermal analysis) process can be effectively overcome, and the application range of the thermoanalysis is broadened.

The present invention relates to the field of arbuscular mycorrhiza fungi test apparatus, particularly to a double room hypha test apparatus and a double room hypha test method. The double room hypha test apparatus comprises a plant room, a filtration screen, an air separation layer and a hypha room from top to bottom, wherein the upper portion of the plant room is provided with an opening, the edge side of the plant room is sealed, the filtration screen and the air separation layer are arranged on the bottom portion of the plant room, the upper portion of the hypha room is provided with an opening, the edge side of the hypha room is provided with a ventilation gas permeation hole, the bottom portion of the hypha room is the completely-closed structure, and the plant room and the hypha room are connected through a bolt. According to the present invention, with the air separation layer method, the root system and the hypha can be well separated; and the upper compartment and the lower compartment are adopted, such that the gravity effect can be well utilized, the hypha growth is easily achieved, the nutrient diffusion influence between the two rooms due to the mass flow can be reduced, and the good test effect is achieved.

The invention discloses a circulating tumor cell sorter, the sorter is compatible with purposes, CTC negative sorting and positive sorting can be achieved in one instrument, and negative sorting and positive sorting results can be mutually verified and mutually complemented, so that more accurate detection results can be obtained; CTC capture specificity can be increased by positive enrichment, a CTC sample with a higher purity can be provided; a CTC capture range can be expanded by the negative sorting, and more research objects can be provided; the circulating tumor cell sorter has reasonable layout and compact structure; the invention also further provides a kit for the circulating tumor cell sorter, and by combination of the circulating tumor cell sorter and the kit, a sorting process can be more smooth and efficient by a best operation process.

The invention discloses a vortex-induced vibration testing system suitable for multi-oscillator coupled vibration research, and relates to the field of fluid mechanics and experimental facilities. The vortex-induced vibration testing system is formed by three parts of a fixed supporting module, a slidable supporting module and a sliding system; the slidable support module can freely slide on the fixed supporting module, and meanwhile the sliding system can do vertical linear reciprocating motion on the slidable supporting module through a tension spring. The vortex-induced vibration testing system is not only suitable for a single-oscillator vortex-induced vibration test, but also suitable for a two/more-oscillator vortex-induced vibration test under the condition of various arrays. Meanwhile, the system can achieve various configuration forms such as series connection, parallel connection, inclined configuration and series-parallel coupling configuration among multiple oscillators, expands the research range of vortex-induced vibration, and supplies good testing conditions to multi-oscillator coupled wake galloping research.

The invention discloses a configuration code stream-based FPGA fault injection complex model. The model comprises a space traversal model, an environment reconstruction model, a fixed point accurate model, a resource guiding model and a multi-bit upset model, wherein the models obtain address information of corresponding target configuration bits on a configuration code stream layer of an FPGA in allusion to different research aims and different circuit designs, and carry out single-event upset fault injection on an FPGA circuit. The complex model disclosed by the invention is capable of estimating the sensitivity, to single-event upset effect, of the FPGA circuit from a plurality of angles such as entirety, locality, different research aims and different circuit types, overcoming the problem that the existing fault injection models are single in application range and application situation, and carrying out single-event upset fault injection on a part of the configuration bits, not all the configuration bits in a targeted manner so as to greatly improve the execution efficiency.