66results about How to "Detection science" patented technology

The invention provides a software quality detection method, which comprises the following steps: 1, a user terminal sends software quality detection requests to an assessment terminal through a network; 2 the assessment terminal responses to the requests; 3, a workload estimation module is operated; 4, a quality prediction module is operated; 5, a quality evaluation module is operated; and 6, the assessment terminal generates an evaluation report which is sent to the user terminal through the network. The software quality detection method automatically assesses workload required by software detection according to product size, labor power and other information, selects appropriate exit criteria and life cycles according to the workload information, predicts and assesses the quality of products, and outputs the evaluation report automatically. In a product detection process, the software quality detection method can monitor the product quality of the whole detection process so as to detect the product quality scientifically and accurately.

The invention discloses a method for testing the content of dendrobe polysaccharide content and application thereof. The method comprises the following steps of: extracting dendrobe crude polysaccharide in a hot water extraction method; obtaining the dendrobe essence polysaccharide by virtue of a Sevag method and a dialysis method; and testing conversion factors of the dendrobe and testing contents of the dendrobe polysaccharide from different sources according to conversion factors. The crude polysaccharide and the essence polysaccharide are not needed to renewedly prepare, so that the using cost of a material can be effectively reduced, and the polysaccharide content of the dendrobe can be tested in batch to allow the detection of the dendrobe polysaccharide to be convenient, simple and scientific. The obtained dendrobe essence polysaccharide is high in purity and less in impurities; and compared with the existing methods of ultrasonic extraction, acid-base extraction and the like, the testing method can be used for accurately detecting the content of the dendrobe polysaccharide, providing a reference for identifying the variety of the dendrobe, and also provides effective guidance for breeding, production and market consumption of the dendrobe.

The invention discloses a basketball specification detecting device, comprising a detection table bracket, wherein a fine-adjusting device is arranged at the bottom of the detection table bracket; an elastic detection platform, a 120 cm standard line and a 140 cm standard line are arranged on the detection table bracket; and the elastic detection platform is provided with a perimeter detecting device, an elasticity detecting device and a weight detecting device. According to the basketball specification detecting device disclosed by the invention, the defect of lacking strictness in the conventional artificial experience measurement method is solved, the weight detecting device, a diameter measuring (the perimeter detecting) device and the elasticity detecting device are combined integrally, so that a special basketball specification detecting device is formed; the basketball specification detecting device aims at detecting the specification of a basketball scientifically, strictly, comprehensively, conveniently and quickly, and clearly judging whether the detected basketball meets requirements of Basketball Rule issued by an international basketball federation, thereby more scientifically and strictly providing a guarantee for basketball competitions and trainings.

The invention discloses a qiangli pipa syrup fingerprint spectrum quality control method. A high performance liquid chromatography method is adopted, and the preparation method and the chromatographic conditions of a qiangli pipa syrup product to be tested are optimized, including a moving phase system, moving phase gradient, extraction solvent, extraction times and the like, so that the chromatogram separation effect is good, the spectrum peaks are more, and the given information content is enough; then the detection wavelength is optimized, and the qiangli pipa syrup fingerprint sample chromatogram with a stable base line is acquired. An effective method for controlling the internal quality of the qiangli pipa syrup is provided, the quality of the qiangli pipa syrup is stable, and the detection method is scientific.

The invention discloses an ocean oil spill fine telemetering method based on blind source separation. The method includes three processes: a multichannel telemetering system, a mixed spectrum blind signal separation method and spilled oil type recognition method. In the method, a multichannel spectrum observation signal X of a spilled oil sample is obtained through the telemetering system. In the mixed spectrum blind signal separation method, through a quick independent component analysis method, the multichannel spectrum observation signal X is subjected to blind signal separation to obtain a spectrum Y of a plurality of mixed components in the channels respectively, wherein the spectrum Y is the approximation of the main component S in the spilled oil sample and includes hydrocarbons, colloids, asphalts and the content information thereof. The spilled oil type recognition method includes the steps of measuring the characters of the component spectrum, matching the characters of the component spectrum with the spectrum characters of the components in a pattern bank, and further correctly recognizing the components and the contents of the spilled oil. By means of the three steps, the types and the components of the spilled oil can be accurately analyzed, thereby quickly identifying illegal oil spill sources.

The invention provides a fast detection method of illegal cooking oil. The method comprises the steps of: testing a standard value of qualified edible oil; heating the qualified edible oil till volatilized gas is generated; detecting the volatilized gas by M gas sensors only used for detecting gas concentrations of different types to obtain M gas concentration standard values of gases of different types; detecting the edible oil to be detected: the same as the above method, detecting the edible oil to be detected to obtain N gas concentration parameters of gases of different types; selection and comparison: selecting N gas concentration standard values corresponding to the N gas concentration standard values of gases of different types from the M gas concentration standard values of gases of different types, and comparing the N gas concentration standard values with the N gas concentration parameters of gases of different types to obtain N groups of comparison results; and judging whether the edible oil to be detected is illegal cooking oil or not. The method provided by the invention has the advantages of scientific process, easy implementation, strong practicality and high detection accuracy.

The invention relates to the technical field of road engineering quality detection, in particular to a tunnel lining non-destructive testing method based on audio frequency analysis, which aims to provide an efficient and accurate non-destructive testing method for tunnel linings. The technical solution adopted is as follows: the following steps are included: acquiring a tunnel lining tapping audio signal at a given sampling frequency by using a mobile terminal with a recording function; trimming the tapping audio signal to retain an effective signal; calculating a calibration threshold according to the effective signal parameters; calculating a test point void index according to the effective signal parameters; comparing the void index with the calibration threshold; and determining the tunnel lining quality according to the comparison result. The invention can carry out non-destructive testing on the surface defects of the lining, and has the characteristics of convenience, high efficiency and accuracy.

The invention provides a high-accuracy synchronous system detection device applied to an intelligent transformer substation. The high-accuracy synchronous system detection device comprises a satellite clock signal receiving unit, a signal receiving and analyzing unit of a synchronizing device, a synchronous/error code signal simulation output unit of the synchronizing device, a synchronous/error code effect feedback detection unit of a synchronized device, and a self-punctuality capacity detection unit of the synchronized device. According to the high-accuracy synchronous system detection device, synchronous signals can be analyzed and counted, by conducting high-accuracy synchronous measurement technology on the synchronous signals, accuracy, stability and integrity of source signals are obtained, the synchronous signals can be simulated and output, synchronous output of the synchronous signals can be adopted, a manually-controllable error code output method can also be adopted, signals which are fed back by the synchronized device after the synchronized device receives synchronous or matched time tick signals can be detected, and therefore a complete chain of a clock synchronous system in the intelligent transformer substation can be comprehensively and scientifically detected.

The invention discloses an RNA isothermal amplification nucleic acid detection kit aiming at Escherichia coli 0157. The kit comprises a capture probe, a pair of 0157 detection primer T7 and n T7 primer, a 0157 detection probe, M-MLV reverse transcriptase enzymes, T7 RNA polymerases and other reagents. The kit provided by the invention can detect 0157 RNA in foods, has the characteristics of high specificity, high sensitivity (which can reach 103 CFU/mL), low pollution (as the amplification product RNA is susceptible to degradation in the natural environment), accurate result (as false positives can be avoided) and quick detection (as the detection can be completed within 40 minutes conventionally ), plays an important role in the quick detection of the Escherichia coli 0157, and has a wide application prospect.

The invention provides a pipe thermal conductivity tester and a test method, belonging to a pipe performance testing technology field. The tester comprises a test host, wherein a touch screen and a sample tubing carriage are arranged on the test host, a temperature sensor I and a temperature sensor II are further arranged on the test host, a power supply module and a control module for supplying power are arranged in the test host, the temperature sensors I and II are connected with the control module by signal, simple tubing is arranged on the sample tubing carriage, the temperature sensor I is connected with the sample tubing, and the temperature sensor II are arranged in the surrounding environment of the sample tubing. The tester of the invention has advantages of simple structure, convenient operation and low cost. Thermal conductivity of sample tubing can be tested by the tester, and the tester solves the problem that thermal conductivity of the current plastic tubing cannot be tested, and can conveniently, scientifically and visually detect product performances in a production process for an enterprise. The technology fills a domestic blank, and is suitable for popularization and application.

The invention discloses a bovine viral diarrhea virus (BVDV) E2 multi-epitope fusion peptide and a preparation method thereof. The preparation method comprises the following steps: performing gene synthesis on two respective epitope tandem sequences of optimized E2 proteins such as BVDV-1 and BVDV-2, cloning the sequences to a pET-28a (+) vector, transforming Escherichia coli DH-5alpha, transforming Escherichia coli BL21 from an accurate recombinant vector, performing IPTG inducible expression, and performing Ni-NTA purification, so as to obtain the BVDV E2 multi-epitope fusion peptide. Afterbeing subjected to animal immunization, the E2 multi-epitope fusion peptide is capable of producing a neutralizing antibody of the BVDV, and can be used for research and development of BVDV epitope vaccines; an ELISA (Enzyme-linked Immuno Sorbent Assay) detection kit prepared by utilizing the E2 multi-epitope fusion peptide can be used for BVDV antibody detection of cattle, and has the advantagesof being high in specificity, high in sensitivity, excellent in repeatability and easy to operate.

The invention discloses a primer probe for RNA isothermal amplification to detect cronobacter, a kit and a detection method. The provided primer probe for detecting specificity, the detection kit containing the primer probe, and the detection method using the detection kit to carry out RNA isothermal amplification have the characteristics of high sensitivity, strong specificity, low pollution (amplification products RNA are easily degraded in nature), and rapidness; the requirements on instruments are low; the operation is simple; the primer probe and the kit are suitable for self detection offood enterprises and basic detection mechanisms and onsite detection, in particular, milk powder rapid detection, and the safety of milk powder is guaranteed.

The invention discloses a novel juice extractor. The juice extractor comprises a support and a jack mounted at the lower part of the support and is characterized in that an upper cylinder and a lower collecting cylinder are mounted on the support through a supporting plate and a fixed guiding plate and separated by a filter hole plate, a fixed pressing plate is fixed at the upper end of the support and sleeved with the upper cylinder, and a nylon pressing plate is also arranged in the upper cylinder; a filter is also arranged below the filter hole plate and is a filter membrane. According to the juice extractor, the pressure of the extractor can be known more accurately and directly through a pressure sensor and a display screen, so that the juice amount can be detected more accurately, scientifically and reasonably, and detection results are objective and clear. The juice extractor is simple and compact in structure, low in preparation cost and effective.

The invention discloses a color line film detector, relating to the technical field of photoelectric detection. The color line film detector comprises a shell and is characterized in that the shell is internally provided with a circuit board and a detection window; a potentiometer, a luminous tube and a connector are installed at the upper part of the shell; the detection window is internally provided with photoelectric chips which are two groups of six-membered common cathode arrays; and the luminous tube and the connector are electrically connected with the circuit board. The color line film detector realizes non-contact detection on the color line film quality and the film supplying state by adopting the photoelectric technology, and the devices are not abraded; through adopting the photoelectric chips the six-membered common cathode array design is realized, and therefore the advantages of wide detection range, high response speed, high photoelectric conversion efficiency and strong antijamming capability are achieved; the signal acquisition processing and controlling circuit board is novel and scientific in design, and the dual path signal acquisition, amplification and comparison can adapt to the change of a detected object, the sensitivity can be adjusted on site, the detection is accurate and the performance is reliable; and the color line film detector has the advantages of integrated structure design, attractive appearance, convenience for installation and use and low maintenance cost.

The invention relates to a method for judging the performance of an electromagnetic oil injector through an exhaust temperature test, and belongs to the technical field of electromagnetic oil injectorperformance detection methods. The method is suitable for an electric control diesel engine. According to the method, whether the oil injector has a fault or not can be judged only by testing the exhaust temperature of the electromagnetic oil injector under various load states of an electric control diesel engine, and thus the detection is more efficient, reliable and scientific.

The invention discloses a pesticide spraying unmanned aerial vehicle, and relates to the technical field of unmanned aerial vehicles. The pesticide spraying unmanned aerial vehicle comprises an unmanned aerial vehicle body, a tension rack, a pesticide storage barrel, a spray head, supporting legs and a hose, wherein a water suction pump, a water level detection sensor and a storage battery are arranged inside the pesticide storage barrel. The device is simple in structure, easy to realize and good in spraying effect, and the storage battery inside the device can be used for providing electricity for the unmanned aerial vehicle, so that the flight time is longer; through the arrangement of the water level detection sensor inside the pesticide storage barrel, the quantity of pesticide insidethe pesticide storage barrel is detected more scientifically, and the pesticide can be added in time, so that the operation is more convenient.

The invention belongs to the technical field of plant stress and physiologic response, and particularly relates to the labeling method for active oxygen generation, generation positions and relative content under biotic stress and abiotic stress during the growth and development process of wheat. The labeling method comprises the following steps of: preparing a label load buffer solution, preparing a material tissue block, rinsing the tissue block with the load buffer solution, placing the tissue block in a dark place at 25 DEG C, exciting the tissue block by using a laser excitation device, observing the tissue block and taking a photo. Compared with the traditional labeling method of DAB (Dimethylaminoazobenzene), NBT (Nitroblue Tetrazolium) and other active oxygen species, the labeling method saves time and avoids the distortion of active oxygen content and positions of a sample during long-time labeling load period. When the active oxygen is labeled by DCFH-DA (Dichlorofluorescein Diacetate), the material is fixed, and the accuracy of active oxygen labeling is ensured. The used device has simple requirements and is easy to operate.