64results about How to "Easy to study" patented technology

A method for the prognosis of overall survival or prediction of therapeutic outcome for a patient suffering from epithelial ovarian cancer (EOC), comprising: a. providing a sample from the patient, b. determining the expression level of microRNA family lethal-7b (let-7b) in the sample; c. using the expression level of the let-7b to obtain the prognosis of overall survival or prediction of therapeutic outcome for the patient.

The invention provides a detector which is used for function debugging, operational parameter detection and failure monitoring of an inverter air conditioner. The detector comprises a central processing unit, a host computer communication circuit, a nixietube display circuit, a button selective circuit, a communication port and a communication line group; the nixietube display circuit and the button selective circuit are connected with the central processing unit; the central processing unit is connected with a host computer through the host computer communication circuit and the communication port; and the central processing unit is connected with the electric control system of the inverter air conditioner through the communication line group. By applying the invention, the operational frequency of the inverter air conditioner, the wind speed of a DC blower, the divergence of an electronic expansion valve and the switching on / off of a four way valve can be set conveniently and quickly, so that the parameter debugging can be facilitated during the process of the development of the inverter air conditioner. Furthermore, by employing the invention, the operational parameters of the inverter air conditioner, including the operational frequency, the target frequency, various temperature sampling values, and the rotating speed of the blower, can be observed, and the data can be displayed in the form of a curve. In addition, the operational failure of the inverter air conditioner can be observed by applying the invention, and the information about the latest ten shutdown incidents is accessible.

The invention discloses a detection method for rapidly screening various pesticides and biotoxins in an aquatic product. The detection method comprises the following steps: (1) preparing a standard solution; (2) carrying out QuEChERS extraction and purification of a sample; (3) carrying out concentration; and (4) carrying out analyzing by an ultra-high performance liquid chromatography high-resolution mass spectrometer. QuEChERS is used for pretreating the aquatic product, meanwhile, ultrahigh performance liquid chromatography quadrupole / electrostatic field orbitrap mass spectrometry (UPLC-Q Exactive Orbitrap HRMS is combined to conduct high-throughput measurement on 93 kinds of pesticide and 16 kinds of biotoxin residues in the aquatic product, and the method is sensitive, rapid, simple,accurate, time-saving, stable, high in practicability and capable of meeting the detection requirements of the current market.

The invention discloses an establishing method and application of a mouse aortic dissecting aneurysm model. The establishing method of the mouse aortic dissecting aneurysm model is simple and convenient, the mouse aortic dissecting aneurysm model can be established within a short time, surgical operation is not needed, trauma to experimental mice can be reduced, and high operability is achieved. The occurrence rate of aortic dissecting aneurysm of a modeling group is 90%, the breaking rate of the aortic dissecting aneurysm of the modeling group is 20%, the occurrence rate of the aortic dissecting aneurysm in chests and aortic dissection above chests is 90%, the occurrence rate of the aortic dissecting aneurysm in abdomen is 20%, and the induction success rate is high. The dissection occurrence position of the aortic dissecting aneurysm is similar to that of human beings, so that the mouse aortic dissecting aneurysm model can be used for easily studying the pathomechanism of the aortic dissecting aneurysm of human beings and can be applied to suspicious virulence gene screening and treatment research.

The invention discloses a simplified analysis method for an inherent frequency and the stability of a rotational symmetric structure. The method comprises the steps of establishing a complete dynamic differential equation of a system, a dynamic differential equation adopting a no-extension hypothesis, and a dynamic differential equation adopting an extension hypothesis: establishing the complete dynamic differential equation of the system; establishing the dynamic differential equation adopting the no-extension hypothesis; establishing the dynamic differential equation adopting the extension hypothesis; introducing coordinate conversion for converting the three dynamic differential equations to a support follow-up coordinate system so as to obtain corresponding three constant coefficient partial differential dynamic equations; performing discrete processing on the three constant coefficient partial differential dynamic equations in the support follow-up coordinate system to obtain three constant differential matrix equations; obtaining an eigenvalue of the complete dynamic differential equation and eigenvalues of two simplified dynamic differential equations; and analyzing a parametrically excited vibration mode characteristic and a dynamic stability change law of the rotational symmetric structure according to the three eigenvalues. According to the method, a specific analysis expression of system eigenvalues can be obtained more clearly.

A method for inhibiting the influence of LED nonlinear distortion on visible light communication performance. The method mainly comprises the following steps: (1) carrying out modulation symbol sequence mapping, and satisfying the Hermitian symmetry by an output signal ; (2) multiplying the mapping signal by a scale change factor; (3) carrying out IFFT, then carrying out amplitude limiting decomposition on the optical OFDM symbol, and obtaining a plurality of decomposition symbols with small amplitudes; (4) decomposing symbol serial framing; (5) sequentially and serially receiving all the optical OFDM symbols in one frame by a receiving end, and respectively delaying until the symbols are aligned; and (6) adding the corresponding bits, and combining into an optical OFDM symbol. Accordingto the method, the average power of the optical OFDM symbols is easy to regulate and control. The synchronization is easy, and the implementation is easy. The deployment is easy.

The invention provides a pulverized coal flame burning diagnosis testing device and belongs to the technical field of pulverized coal burning. The pulverized coal flame burning diagnosis testing device aims at solving the problem that an existing experiment device simulating burning of pulverized coal in a hearth of a power station pulverized coal fired boiler cannot simulate an actual pulverized coal burning environment and cannot utilize PLIF system to perform pulverized coal flame burning diagnosis. A very thin flat flame is formed in a flat flame area of a burner boiler plate of the pulverized coal flame burning diagnosis testing device, a 2000K temperature field and a smoke environment similar to the inside of the boiler can be formed. The requirement of a local pulverized coal burning simulating environment can be met. Laser and fluorescence signals can damply pass through trace pulverized coal feeding and light transmitting of a boiler body, a burning chamber formed by 4 square optical windows and provided with a square cross section can reduce the influence on a light path, and high-quality optical measurement can be ensured. A pulverized coal pipe is adjustable in extending length, and it is ensured that the fluorescence signal of pulverized coal flame is detected. The flame shape in the burning chamber and a flow field are approximately and axially symmetric to facilitate experiment measurement and research. The pulverized coal flame burning diagnosis testing device operates under micro negative pressure.

The invention relates to a congested road section modeling and evaluation method based on complex network. In the method, aiming at a congestion phenomenon of a traffic network, innovation is executedfor the conventional traffic road network in combination with a method of the complex network, in the traffic road network with time-varying characteristics, a traffic network quantification method is optimized through user-defined weight density and neighborhood density, and traffic efficiency of the traffic network is evaluated in combination with a percolation theory and a complex network theory. In the method provided by the invention, research on the network traffic can be simplified through the complex network theory, the congestion phenomenon is described visually, a topologic structure of the road network is analyzed deeply and traffic flow property is investigated, consequently, different methods and angles of view are provided for research on the modern traffic road network; bycombination of the percolation theory and the complex network theory, the field of research on the traffic network can be expanded, a novel method is created, theoretical foundation is provided for solving traffic problems, and a role in guidance is realized.

The invention provides Pu'er and bitter gourd tea and a production method thereof, belonging to the health care drink technology. The product is prepared by 50-55% of dry bitter gourd pieces and 45-50% of Pu'er ripe tea by weight. The production method comprises the following steps: taking ripe bitter gourds, cleaning the ripe bitter gourds, removing the pulps, slicing the ripe bitter gourds, mixing the slices with the Pu'er tea leaves, rolling the mixture, drying the mixture and naturally storing the mixture in the warehouses for more than one year, thus obtaining the finished product. The tea has brown red and clear infusion after brewing and filtration and has special and highly sharp aroma. After drinking, the faint fragrance of the bitter gourds ensures the taste of the Pu'er tea to be more mellow and fuller. The natural physiologically-active components in the product are complete; therefore, the tea has more obvious pharmacological effect of lowering blood sugar level, blood pressure and blood fat. The cold and cool nature of the bitter gourds is moderately neutralized with the partially warm nature of the Pu'er tea; therefore, the tea overcomes the defect that people with weaker tolerance can not singly drink the tea for a long time. The Pu'er and bitter gourd tea is suitable for wider range of people and long-time drink as a health care functional drink.

The invention relates to an intelligent dehumidification device of an atmospheric particulate matter sampler. The intelligent dehumidification device is characterized by comprising a conical cover, an inverted U-shaped dehumidification device, a steel pipe and three humidity sensors, wherein a conical flow guide plate is arranged on the inner wall of the conical cover; a circular through hole for holding one of the humidity sensors is formed in the side surface of the conical cover; the conical cover is connected with a steel wire mesh through a thread; a first vertical section of the inverted U-shaped dehumidification device is sleeved with a condensing sleeve, and the bottom end of the first vertical section is connected with the conical cover; a second vertical section of the inverted U-shaped dehumidification device is sleeved with a heating sleeve, and the bottom end of the second vertical section is connected with the steel pipe; an arc section is provided with a circular through hole for holding another humidity sensor; the top end of the steel pipe is connected with the bottom end of the second vertical section; a circular through hole for holding the last humidity sensor is formed in the lower part of the steel pipe; a signal processing system in an electronic control system can judge humidity signals received from the three humidity sensors in real time and adjust the working states of the condensing sleeve and the heating sleeve by controlling the on or off of corresponding electronic power switches according to judgment results.

The invention discloses a three-dimensional integrated circuit layout method based on graphic processing, and the three-dimensional integrated circuit layout method comprises the steps: carrying out layout operation of a three-dimensional integrated circuit layout through an image processor, wherein the layout operation comprises the steps: global layout, legalization and detailed layout; enteringglobal layout at the beginning of initial layout, and overlapping a large number of modules of the layout to form a layout with very high density and very short line length; changing the positions ofthe modules in the layout through a plurality of layout engines, reducing the overlapping degree between the modules, and finally achieving a layout result meeting conditions; after the global layoutis finished, legalizing the whole layout, and emptying the residual overlapping; and carrying out layout optimization through detailed layout. The three-dimensional integrated circuit layout algorithm research is simplified, and the time consumed in the circuit layout process is shortened, and the layout result is optimized, and the manufacturing efficiency of the chip is improved.

The invention discloses an organic polymer electronic memory which comprises an upper electrode, a lower electrode and an organic polymer layer arranged between the upper electrode and the lower electrode, wherein, the upper electrode is made from aluminum, the lower electrode is made from nanometer indium tin metal oxide, and the organic polymer is chosen from an azo polymer which is obtained by free radical polymerization of one of acrylate azo monomers which takes nitryl or bromine substituent or methoxy group as an terminal substituent group, and the average molecular weight of the azo polymer is 2,500-15,000. The azo polymer memory device has the advantages of simple structure and preparation process, rapid storage speed and good stability; and the storage classes of the azo polymer device can be correspondingly adjusted by adjusting the terminal substituent group of the azo polymer.

The invention discloses an SOC estimation method for a power battery of an unmanned aerial vehicle in a high-altitude flying environment. The method comprises: simulating a high-altitude flight environment and establishing a first table and a second table that use temperatures, gas pressures, and discharge rates as item bars and actual total capacity and discharge capacity losses of a battery in acurrent state as data bars; carrying out charging and discharging under the nominal condition to obtain actual total capacity and discharge capacity losses of the battery under the nominal condition;calculating an SOC of an unmanned aerial vehicle during the flight process; and then calculating the SOC of the battery after flight ending. According to the invention, the involved parameters are reduced; the method is simple; and the accuracy is high.

The invention provides a stimulation device of time-phase characteristics of coronary artery blood flow, which relates to the technical field of in vitro stimulation experiments and aims at solving the technical problems that the existing hemodynamic parameters of clinical patients and experimental animals have randomness and the blood flow is difficult to be measured. The device comprises a fluid line system which consists of a cardiac pump, an accumulator, a fluid flow loop and a fluid storage tank which are sequentially and circularly connected, and a motor which drives the cardiac pump to move; and the device is characterized in that: the fluid flow loop comprises a two- position three-way valve, a diastolic branch and a systolic branch; one end of the diastolic branch and the systolic branch is respectively connected with two outlets of the two-position three-way valve, and the other end is connected with the fluid storage tank, a common inlet of the two-position three-way valve is connected with the accumulator, and the two-position three-way valve is driven by the motor to cause the common inlet to be communicated with the diastolic branch and the systolic branch along with the alternation of the diastole and the systole of the cardiac pump, and fluid resistance of the systolic branch is greater than that of the diastolic branch. By adopting the stimulation device of the invention, the time-phase characteristics of the coronary artery blood flow can be reproduced.

The invention relates to an information tracing method and system. The method comprises the following steps: sending pictures of each dishes served on the day to a user terminal for display; receivinga tracing request from users for a specified dish; retrieving raw material information of the specified dish, sending the raw material information of the specified dish to the user terminal for display; receiving a tracing request from the users for a specified raw material; retrieving file information of the specified raw material, sending the file information to the user terminal for display, wherein the file information at least includes dealer information, supplier information, logistics time and place. According to the method and system, parents can trace the raw materials of the dishesserved daily in the school canteen. Thus, on the one hand, parents can grasp the source of the food, which facilitates investigation of causes and responsibility, and on the other hand, parents can know of nutrition matching status.

The invention relates to improved genetic elements providing high levels of expression of operably-linked genes in a variety of tissues. In particular, fragments of unmethylated, CpG islands of less than 2kb are shown to provide enhanced transgene expression and have advantages in terms of vector construction and cloning capacity.

The type of a nucleotide located in a mutation site on a target nucleic acid can be identified by carrying out a fluorescence real-time PCR using a probe set comprising a detection probe and a counter probe, wherein the detection probe comprises an oligonucleotide which comprises a nucleotide sequence containing the mutation site on the target nucleic acid and also containing a nucleotide of interest in the mutation site or a nucleotide sequence complementary to the aforementioned nucleotide sequence, has a fluorescent substance added to the 5'-terminal and a quenching substance added to the 3'-terminal, and has, introduced therein, such a modification that the melting temperature of the probe becomes 3 DEG C or more higher than that of the counter probe, and wherein the counter probe comprises an oligonucleotide which comprises a nucleotide sequence containing a mutation site and also containing a nucleotide that is different from the nucleotide of interest in the mutation site or a nucleotide sequence complementary to the aforementioned nucleotide sequence.

The invention discloses an English composition automatic scoring system, and the system comprises a reading module for acquiring an ungraded English composition and acquiring a manual score; a gradingmodule for grading the ungraded English composition; a reading module for issuing the score of the English composition. The system can comprehensively grade the content of the English composition bycomparing and comprehensive scoring. The general manual grading is mixed with individual opinions, and the computer grading comprises sentence pattern grading, sentence structure grading, topic grading and word error grading. Aiming at the grading conditions of the four parts, the system brings convenience for the analysis of weakness of students, and brings convenience for the students to do targeted learning. The combination of manual grading and computer grading reflects the characteristics of fairness, so that students can recognize problems in the composition, thereby facilitating the improvement of the writing skills of students. By setting up a comprehensive supervision module, the system can effectively avoid plagiarism.

The invention provides a cylinder type separation test device for non-uniform bed load particles. A transparent cylinder is used for accommodating spherical glass beads with different particle sizes required for a test, axial displacement is restrained on one side through a thrust bearing, and a protective cover is mounted at the top; a drive motor is arranged on the upper side of the transparentcylinder, and rotation of the transparent cylinder is driven by gear transmission; laser beams emitted by a laser penetrate a round section of the transparent cylinder in a form of laser plane, and the section illuminated in the transparent cylinder by the laser beams is a shooting area of a high-speed camera; the high-speed camera is used for shooting displacement characteristics of the sphericalglass beads on the section irradiated by the laser, and is connected with a computer through a data line for storing shot images. Diffusion and separation physical processes of non-uniform bed load are simplified, and influence of disturbance terms except particle size in a test process is reduced, so that more regular test data is obtained for supporting theoretical research.

The invention belongs to the technical field of in-vitro pharmacodynamics of antibacterial agents and relates to a culture system for a static sterilization curve for an anti-anaerobic agent and a construction method of the culture system. The culture system mainly comprises one or more anaerobic bags, one or more culture bottles, one or more stirrers, a peristaltic pump and pipelines, wherein the one or more anaerobic bags are connected with the one or more culture bottles through the pipelines; the peristaltic pump is arranged on one of the pipelines; the one or more culture bottles are connected with the one or more stirrers; one or more sampling holes are formed in the one or more culture bottles; a stirring bar of each stirrer penetrates through a bottom plate of the corresponding culture bottle and is arranged in the corresponding culture bottle. Use results indicate that the culture system has the advantages being simple, cheap, easy to operate and the like and can be used to, but not limited to, research on the static sterilization curve for the anti-anaerobic agent.

The invention discloses a Zr-containing TiB whisker reinforced titanium-based composite material and a preparation method thereof. The preparation method comprises the following steps of conducting ball-mill mixing on titanium alloy powder and boron powder; conducting ball milling on the obtained powder and zirconium powder to obtain mixed powder; and curing and forming the prepared mixed powder through a solid-phase sintering process, and preparing the Zr-containing TiB whisker reinforced titanium-based composite material. The process for preparing the composite material is simple, only a small amount of elements are introduced into the titanium alloy, recycling and reusing are easy, and the prepared composite material is small in plasticity reduction amplitude, even further improved in strength, good in comprehensive mechanical property, low in cost, high in economic benefit and suitable for industrial production and capable of replacing some high-performance alloy with high price in the future.

The invention discloses a visual terahertz power meter based on cholesteric liquid crystal and a testing method thereof. The visual terahertz power meter comprises a capsule-type cholesteric liquid crystal thin film which generates a visual color region change along with changes of THz, wherein the capsule-type cholesteric liquid crystal thin film comprises a three-layer structure, and the structure sequentially comprises an acrylic resin film, cholesteric liquid crystals and carbon blacks from top to bottom. According to the meter and the testing method, simplicity, convenience and high efficiency are achieved, the meter and the testing method are particularly capable of detecting the power of strong THz waves, the increase of the size of the color change region caused by THz absorption is quantified by utilizing the thermochromatic effect and the thermal diffusion effect of the cholesteric liquid crystals, the meter is not limited by color change saturation, is stable and practical,and does not need any additional components for measuring temperature.

The invention discloses a healthy porcine alveolar macrophage cell line and a construction method and application. The collection number of the healthy porcine alveolar macrophage cell line is CGMCC No: 21498. According to the healthy porcine alveolar macrophage cell line, the 100% healthy porcine alveolar macrophage cell line is screened by adopting a special cell culture solution in combination with a natural domestication selection method, and the healthy porcine alveolar macrophage cell line can be applied to cell culture of viruses, research, development and production of live vaccines and inactivated vaccines and preparation of bioactive substances secreted by M1 and M2 macrophages after induced polarization, and the bioactive substances are used for cancer treatment, inflammation diminishing and the like. According to the invention, the healthy porcine alveolar macrophage cell line is cultured for the first time, any carcinogenic substances such as lentivirus transformation or plasmid transfection are not adopted in the construction method of the invention, and the constructed healthy porcine alveolar macrophage cell line keeps the characteristics of primary porcine alveolar macrophages.

The invention discloses a bottom mud suspending and sampling device for simulating ship disturbance and belongs to the technical field of water quality detection. The bottom mud suspending and sampling device comprises a supporting device, a connecting part connected with the supporting device, a driving part which is mounted at the bottom of the connecting part and is provided with an output end at the bottom, a propeller mounted at the output end at the bottom of the driving part, and a sampling part; through holes are formed in the middle of the propeller and the middle of the driving part, and the propeller and the driving part are communicated with each other; and the sampling part sequentially penetrates through the propeller and the driving part to be connected with the connecting part. According to the bottom mud suspending and sampling device for simulating ship disturbance, the situation that a ship is located at different river environments and sails at different allocated speeds is simulated, so that the effect of the suspending of bottom mud by the propeller can be observed, so that the condition of the pollution of the bottom mud can be embodied indirectly;data analysis and exploration are carried out from the radial and depth distances of the ship propeller, so that more possibilities are added for experimental results, and experimental data are more comprehensive.

The invention relates to a non-rotary type insect detection radar based on surface imaging laser radars and a method; the non-rotary type insect detection radar comprises a plurality of surface imaging laser radars, a fixed column and a data transmission module; the plurality of surface imaging laser radars are same in structure; the data transmission module is arranged on the top of the fixed column; the plurality of surface imaging laser radars are placed on one horizontal plane, and fixed on the top of the fixed column and below the data transmission module; signals formed by the pluralityof surface imaging laser radars are transmitted to a remote base station or a host computer in real time through the data transmission module. The surface imaging laser radar is in a non-rotary type,and can detect the whole optical surface in a large angle scope, thus realizing faster responses and providing more stable results; the non-rotary type insect detection radar can accurately record theinsect flew over time and positions, can determine the insect types, and is used for quantitatively analyzing the quantity, type and position information of insects flew over the laser radar detectedplane, thus providing data support for the ecology researches.

The invention, which relates to the field of biology, provides a high-throughput protein analysis method and an applicable library thereof. According to the high-throughput protein analysis method, alabeled semi-cloned mouse library is employed and one or more tagged protein antibodies are used for carrying out parallel indication analysis on a plurality of different interested target proteins. In the labeled semi-cloned mouse library, all semi-cloned mice are semi-cloned mice obtained by injecting ova by using androgenic haploid embryonic stem cells and then carrying out cultivation or sexually propagated progenies. The androgenic haploid embryonic stem cells contain genes expressing fusion proteins of the interested target proteins and labeled proteins; and the semi-cloned mice can express the fusion proteins of the interested target proteins and labeled proteins. Therefore, a system for high-throughput in-vivo real-time dynamic studies is provided for the study of biological macromolecules.

The invention discloses a device and a method for simulating pharmacokinetics characteristics in vitro during multi-component combined administration. The device consists of a multielement variable speed liquid conveying unit, a mixing unit, a simulation unit and a detection unit, wherein the characteristics of a conveying speed-time curve of stock solution of each component are consistent with the characteristics of a blood concentration-time curve of the component in a human body or an animal body; and when the conveying velocity of the stock solution of each component is smaller than the maximum conveying velocity, the difference is supplemented by using blank solution to ensure that the sum of the sum of the input velocity of stock solution of each component and the velocity of the blank solution is in the constant state. Through the system and the method, the pharmacokinetics characteristics of the human body and the animal body can be simulated in vitro during multi-component combined administration.

The invention provides a bearing simulation test bed for a vertical shaft type pumping and storing hydropower unit. The bearing simulation test bed for the vertical shaft type pumping and storing hydropower unit is characterized by comprising a rotary shafting (104), an upper test bed rack (101), a lower test bed rack (103), a test bed water guiding rack (105), a test bed stabilizing box body (106) and a test bed loading device (102), wherein the upper test bed rack (101), the lower test bed rack (103), the test bed water guiding rack (105) and the test bed stabilizing box body (106) are connected together in sequence from top to bottom in a spaced mode through 12 long bolts; an upward guiding thrust bearing (1) of the rotary shafting is connected with the upper test bed rack, a downward guiding and loading bearing is connected with the lower test bed rack, a water guiding bearing (7) is connected with the test bed water guiding rack, and a turning wheel (9) is connected with a variable-frequency motor which is fixed to the test bed stabilizing box body. By means of the bearing simulation test bed for the vertical shaft type pumping and storing hydropower unit, a simple simulation object convenient to use is provided for the study of the bearing bush operational mechanism and the abrasion prediction of the pumping and storing unit under a deep pitch peak working condition.

The invention discloses a method for detecting the evolution process of oxide inclusions in steel at high temperature, and belongs to the technical field of steelmaking. The process comprises the steps that a core-shell heterostructure composed of an inner core and an outer shell wrapping the outer layer of the inner core is prepared through a fluidized vapor deposition method, the inner core is iron powder, the outer shell is an oxide inclusion layer of one of SiO2, TiO2, Al2O3 or MgO, then a steel block containing oxide inclusions is prepared through sintering, then the steel block is ground and polished, and the steel block is obtained; and fnally, the steel block is placed under a high-temperature confocal laser microscope, and the evolution process of the oxide inclusions in the steel block at the high temperature is observed through the high-temperature confocal laser microscope. The iron powder is coated with one of SiO2, TiO2, Al2O3 and MgO oxide inclusions through a fluidized vapor deposition method, so that the SiO2, TiO2, Al2O3 and MgO oxide inclusions in traditional steel are replaced, meanwhile, the oxide inclusions are introduced between the iron powder in a steel block through pressure sintering, and the evolution process of the oxide inclusions can be conveniently and rapidly observed at the high temperature.