37results about How to "Simple detection" patented technology

The invention relates to a method for monitoring the functioning of an NOx sensor, which is arranged in an exhaust gas channel of an internal combustion engine and is located downstream from an NOx storage catalytic converter. The aim of the invention is to detect the faulty functioning of the NOx sensor in a simple manner in order to be able to take appropriate measures if necessary. To this end, the mass of NOx absorbed by the NOx storage catalytic converter is determined within a diagnostic period using a measurement signal of the NOx sensor. At the same time, an absorbed NOx target mass is calculated using a model for the NOx storage catalytic converter. A ratio of the NOx mass to the NOx target mass is then compared to predetermined limit values to determine the functioning of the NOx sensor. The aim of the invention is alternatively accomplished by measuring a duration time for a complete NOx regeneration of the NOx storage catalytic converter. A specified duration time is also calculated for the NOx regeneration using a model for the NOx storage catalytic converter and using a measured or calculated NOx load state. A ratio of the measured duration time to the specified duration time is then compared to predetermined limit values to determine the functioning of the NOx sensor.

The invention discloses a detection method of a small target of a feature space, realizing small target detection of the feature space through steps of star position location, reference star selection, star and potential target division, track association cancelling noise, and the like. Because a detection algorithm of small moving target with a moving night sky background of a feature space based on distance is adopted, two stars are selected to be used as reference stars, different motion characteristics among the stars, and the target and a noise point are fully utilized to directly divide the stars, the potential target and the noise in a two-dimension feature space domain. Compared with three reference stars selected by the background technology on calculation of a similarity measuring function, an error square sum and a curve inflection point in a three-dimension space, the invention reduces the calculation amount because one star is decreased. Because the track continuity of the target is directly utilized to detect a track, a process that a potential target point set is mapped from the three-dimension space to the two-dimension space to be detected is avoided, and the detection is simpler and more practical.

A storage system for objects such as wafers or reticles has at least one storage module, in which the objects are stored one above the other in packets similar to a column. Located next to the storage module is an inserting and dispensing module which comprises a robot. The robot has an arm which is movable substantially in a horizontal plane and with which predetermined objects can be laterally removed from or inserted into a predetermined packet. The packets are arranged in the storage module on a conveyor that runs substantially in a horizontal plane. The predetermined packet can be brought by the conveyor into a transfer position, at which the predetermined object can be transferred between the arm and the predetermined packet.

The invention provides a detecting method for food-borne pathogenic bacteria listeria monocytogenes. The listeria monocytogenes is safely, specially, rapidly, sensitively and easily detected on site, and the defects of the existing traditional detection technology are overcome. The method is particularly suitable for on-site detection and can effectively restrain occurrence of the listeria monocytogenes epidemic situation in time, and the food safety guarantee system is perfected. The sequence of an adopted forward primer is shown in SEQ ID NO:1, the sequence of an adopted reverse primer is shown in SEQ ID NO:2, and the sequence of a probe is shown in SEQ ID NO:3.

The invention belongs to the technical field of genetic engineering and relates to a detection technology of transgenic crops, in particular to a visualized detection method of BAR transgenic crops. The method comprises steps as follows: adding DNAzyme-marked specific probes for detecting the BAR gene into a PCR (polymerase chain reaction) system, amplifying the BAR gene by forward and reverse primers, releasing the DNAzyme markers from the probes by exonuclease activity of nucleic acid polymerase 5'-3', and detecting the markers released from the PCR product to judge whether the sample is a transgenic sample or not. The method provided by the invention has the characteristics of being efficient and convenient and low in cost and the like.

The embodiment of the invention relates to a method for interacting with equipment by utilizing an optical indicator, the optical indicator as well as a presentation method and system adopting the optical indicator. The method for interacting comprises the following steps of: detecting a light spot generated by the optical indicator; determining a sequence of the state of the light spot in a preset time interval according to the detection result; and determining an interaction event according to the sequence of the light spot so as to interact with the equipment. According to the embodiment of the invention, more than one light spot is utilized, and the light spot is mapped to different interaction events according to the sequence of the state of the light spot in the preset time interval, thus more interaction events can be presented. The light spot is easier and simpler to detect, and a detection method can be used for improving the accuracy and the reliability of detection, thus the sequence of the state of the light spot can be mapped into a mouse event and a corresponding mouse signal is generated, so that interaction with a computer is realized.

The invention discloses a PCR (polymerase chain reaction) primer for detecting tobacco soil-borne fungal pathogens as well as application and a method of the PCR primer. The PCR primer comprises a tobacco rhizoctonia solani primer, a phytophthora nicotianae primer, a thielaviopsis basicola primer and a pythium aphanidermatum primer; the application is application of the PCR primer to simultaneous detection of four tobacco soil-borne fungal pathogens, and four soil-borne fungi are tobacco rhizoctonia solani, phytophthora nicotianae, thielaviopsis basicola and pythium aphanidermatum; the method comprises the steps of pre-treating, PCR reaction and electrophoretic detection; the detection operation is simple, convenient, quick, high in sensitivity and accurate; a sample is prepared and detected within 4 hours; the four pathogens of tobacco rhizoctonia solani, phytophthora nicotianae, thielaviopsis basicola and pythium aphanidermatum are simultaneously detected; a DNA (deoxyribonucleic acid) sample of the pathogen of 0.01 ng can be detected; the accuracy of a detection result is higher than that in a conventional separation identification and symptom identification method.

The invention provides a quality detection device for shipbuilding steel plate butt-jointed seams, which comprises a detection tank, a detection tank hold-down mechanism, an alcohol jar, an alcohol detector, and an alarm. A seal rubber ring is arranged at the top of the detection tank connected with the alcohol jar through an air pipe. The detection tank hold-down mechanism comprises a support base board, a jack and clamping boards arranged at two ends of the support base board. The detection tank is arranged at the bottom of the shipbuilding steel plate butt-jointed seams, the support base board is arranged below the detection tank, the clamping boards at the two ends of the support base board are clamped on the shipbuilding steel plates, the jack is arranged between the support base board and the detection tank, the seal rubber ring is pressed on the bottom face of the shipbuilding steel plates which are located on two sides of one butt-jointed seam, the alcohol detector directly faces the top of the welding seam and is connected with the alarm through a signal line. By mean of the quality detection device for the shipbuilding steel plate butt-jointed seams, welding seam detection can be achieved before assembling and after butt welding of the shipbuilding steel plates, the detection is more simple and energy-saving, and the increased rework cost caused by welding seam defects after assembling can be effectively reduced.

The invention provides a method for detecting an adhesive tape at the edge of banknotes, which comprises the steps of acquiring banknote thickness detection data of thickness sensors in n channels when the banknotes are detected, and finding out a start position and an end position in the banknote thickness detection data; respectively calculating the banknote thickness detection data, and calculating a mean value of an oscillation area near the start position and the end position of each piece of banknote thickness detection data; sorting the mean values, and using a mean value of the mean values locating at the middle positions of the sorting sequence to act as a reference mean value; and judging whether each piece of banknote thickness detection data is greater than the reference mean value and exceeds a set value or not, if so, judging there is an adhesive tape at the edge of the banknote in the channel and alarming, if not, ignoring. Compared with the prior art, the method detects an adhesive tape at the edge of the banknotes, is not only high in judgment accuracy but also simple in detection and improves the detection efficiency.

In a toggle-type clamping device that drives by belt driving by a motor, to detect securely a break in a belt using a simple and inexpensive construction. A dog is mounted on a crosshead of a toggle mechanism, a proximity switch is mounted on a rear platen, and arrival of the crosshead at a predetermined position is detected. A position detector is mounted on a motor that drives the toggle mechanism via a belt and a ball screw. When arrival of the crosshead at the predetermined position (a mold touch position or a position at which the mold is open a predetermined distance from the mold touch position) is detected by the position detector, if the dog is not detected by the proximity switch, the clamping device outputs an alarm as an indication that an abnormality such as a break in the belt has occurred. Simply by adding to a conventional toggle-type clamping device a simple and inexpensive detection unit such as the proximity switch, the dog, and the like, abnormalities such as belt breakage and the like can be securely detected.

The invention which relates to a kit concretely relates to a toxoplasma IgM antibody immunoblotting kit and a preparation method thereof. The kit is characterized in that: the kit is provided with a vector plate, a nitrocellulose film, a toxoplasma IgM antibody detection line and a contrast line; the toxoplasma IgM antibody detection line and the contrast line are sequentially arranged on the nitrocellulose film; the toxoplasma IgM antibody detection line is coated with a toxoplasma recombinant antigen, and the contrast line is coated with a human IgM antibody; and an anti-human mum-chain antibody is labeled with horseradish peroxidase. The preparation method comprises the following steps: 1, preparing the toxoplasma antigen; 2, carrying out nitrocellulose film spotting; 3, preparing an anti-human IgM specific fragment mum-chain monoclonal antibody; 4, labeling the anti-human IgM specific fragment mum-chain monoclonal antibody with the horseradish peroxidase; and 5, preparing the immunoblotting kit. The kit of the invention, which allows the needed sample amount to be extremely small and no special instrument to be needed during detection and allows the result to be directly interpreted by naked eyes, has the advantages of simple and rapid detection, strong specificity, high sensitivity, accuracy and reliability, low cost, and wide application.

The invention discloses a detecting method and a device of a vibrator working state, a circuit and a humidifier, wherein the method includes steps of acquiring oscillating voltage to drive a vibratorto oscillate; counting the lasting time length when the amplitude of the oscillating voltage exceeds the reference voltage; confirming current working state of the vibrator according to the lasting time length. Due to different amplitudes of the oscillating voltage, the working states of corresponding vibrators are also different; the current working state of the vibrator can be determined upon the lasting time length. Only through a single I / O port, the detection of multiple working states can be realized; the inherent attribute of the vibrator with amplitude can also be learned; thus the working state of the vibrator can be simply and rapidly detected.

The invention discloses a hemicyanine compound based on benzothiazole biheterocycle, and a preparation method and an application thereof. The structural formula of the compound is represented by formula I. The preparation method of the compound comprises the following steps: carrying out an alkylation reaction on a benzothiazole compound represented by formula II and alkyl halide RbX to obtain a substituted benzothiazole compound, and then carrying out a Knoevenagel condensation reaction on the substituted benzothiazole compound and N-ethylcarbazole-3-formaldehyde to obtain the target compound. The synthesis and preparation steps are simple and easy to implement, raw materials are cheap and easy to obtain, and the product serving as a probe is stable in structure and high in specificity and can be used for specifically detecting G-quadruplex and double-helix secondary structures of nucleic acid. A detection method of the probe for the nucleic acid secondary structure has the advantagesof low price, simplicity and convenience in operation, good selectivity and quickness, and overcomes the defects of high price, high equipment requirement and relatively complex technical operation of other detection methods.

The invention discloses a method for detecting trace hydroquinone by using a graphene / carbon nano tube modified electrode. The graphene / carbon nano tube modified electrode is a working electrode, and a method for detecting trace hydroquinone in water is established by means of different current catalytic strengths of the graphene / carbon nano tube modified electrode to hydroquinone with the concentration of respectively 0.6mu mol / L, 0.8mu mol / L, 2mu mol / L, 4mu mol / L, 6mu mol / L, 8mu mol / L, 20mu mol / L, 40mu mol / L and 60mu mol / L. The scanning potential is -0.2-0.6V, and the scanning speed is 100mV / s. In a 0.02mol / L phosphate buffered solution (PBS) with a pH value of 7.4, the concentration of the hydroquinone is within the range of 6*10<-7>-6*10<-5>mol / L, a favorable linear relation is formed between the concentration and the catalytic current strength on the surface of the electrode, and the detection limit is 2.13*10<-7>mol / L. The method is sensitive, good in selectivity, and more convenient and simpler in detection of low-concentration hydroquinone.

A method for detecting ammonia nitrogen of a low mercury salt belongs to the technical field of chemical engineering. The method comprises the following steps: preparing a mercury bichloride-potassium iodide-potassium hydroxide solution used as a Nessler's reagent, preparing a potassium sodium tartrate solution, preparing an ammonia nitrogen solution in colorimetric tubes to obtain an ammonia nitrogen standard series, and drawing a calibration curve. The method for determining ammonia nitrogen in wastewater, which uses HgCl2 to prepare the Nessler's reagent, has no precipitate generation, realizes the high accuracy and the high precision of a determination result, and can be used for control analysis. Comparison researches confirm that the detection of the ammonia nitrogen through the Nessler's reagent prepared from KI, KOH and HgCl2 and the optimized potassium sodium tartrate solution guarantees the low content mercury and is fast and simple, and the calibration curve made through the method has a high sensitivity.

The invention belongs to the technical field of kits, and in particular relates to a kit for identifying benign and malignant human thyroid nodules and a use method and application thereof. The kit comprises a sequencing primer system, a PCR buffer system, Taq enzyme, UNG enzyme and a negative quality control substance. The sequencing primer system comprises a primer pair BRAF-2, a primer pair KRAS-2, a primer pair NRAS-2, a primer pair HRAS-3, a primer pair HRAS-4 and a primer pair TERT-2, which are used for measuring 19 mutation sites on a BRAF gene, a KRAS gene, a NRAS gene, a HRAS gene anda TERT gene. The kit can be used for simultaneously detecting a plurality of gene variations, the detection result can be taken as an intermediate result to provide assistance for clinically diagnosing benign and malignant thyroid nodules and judging prognosis, and the kit can be further combined with other results to verify whether the thyroid cancer is suffered or not, so that probability of misjudgment is effectively reduced.

The invention discloses a non-invasion-type detection instrument and method for the cerebral blood oxygen of a fetus in the abdomen. The detection instrument comprises a probe and a control device, the probe completely fits the abdomen of a pregnant woman and is provided with a luminous source and multiple light sensing points, when light emitted by the luminous source penetrates through the front-wall tissue of the abdomen of the pregnant woman, the shallow-layer tissue of the head of the fetus and the cerebral tissue of the fetus, corresponding emergent light is formed, and the light sensingpoints detect the emergent light corresponding to the light sensing points; the control device is internally provided with a central processing module, a power module, an optical source driving module, a light sensing point signal receiving module and a data displaying module, and the power module, the optical source driving module, the light sensing point signal receiving module and the data displaying module are electrically connected with the central processing module; the optical source driving module controls the luminous source to give out light, the light sensing point signal receivingmodule receives light sensing signals of the light sensing points, and after the central processing module conducts data processing, a cerebral blood oxygen saturation degree value is obtained and displayed by the data displaying module. By adopting a noninvasive detection mode, the detection instrument can be applied to timely evaluation on the cerebral oxygen condition of the fetus in the abdomen, and the situation is avoided that due to events such as the cord around neck, the encephalic hypoxic-ischemic state is caused.

The invention discloses detection test paper which comprises a reaction support, an absorbent pad, a nitric acid fiber membrane and a GAB gold-labelled antibody protective film, wherein the nitric acid fiber membrane is coated with an A type botulinum toxin polyclonal antibody band and a quality control goat-anti-rabbit IgG band, and the GAB gold-labelled antibody protective film comprises an A type botulinum toxin monoclonal antibody which is labled by colloidal gold. The invention also simultaneously discloses a method for preparing the test paper and application thereof. Based on a specimen and a piece of test paper, the invention can quickly and easily detect the A type botulinum toxin antigen in the specimen, can capture the A type botulinum toxin once, saves a great deal of manpower and material resources, is convenient, fast, and simple, and does not need special instruments and equipment nor professional training; the invention is clear and easily distinguished in result, is easy to be operated and promoted, is suitable for grass-roots units, batch on-site detection of unexpected events, and epidemiology investigation, and plays an auxiliary role to the infection diagnosis of the A type botulinum toxin.

The invention discloses a device for pressurizing and pressure maintaining anti-leak detection after corn harvester brake pump assembly. The device comprises a base. A fuel tank bracket is fixedly arranged at one end on the base, and a pump fixing fixture is arranged at the other end. A hydraulic fuel recycling tank is arranged below the pump fixing fixture. A primary return fuel filter and a secondary return fuel filter are arranged at the bottom of the hydraulic fuel recycling tank. A multi-way valve group is arranged below the fuel tank bracket, and the multi-way valve group is connected with a main pump operating handle and a branch pump operating handle. A pressure gauge is mounted on a side of the fuel tank bracket. A hydraulic cylinder is arranged at the inner bottom of the fuel tank bracket. A telescopic rod at the front end of the hydraulic cylinder is provided with a bolt. A hydraulic fuel tank is fixedly mounted on the fuel tank bracket. The hydraulic fuel tank is provided with a fine return fuel filter and a hydraulic fuel tank cover. A power switch is mounted on one side of the base. The device is provided with the hydraulic cylinder, so that pressurizing detection of a main pump can be realized. Fuel leaked from a brake pump is filtered and recovered by the hydraulic fuel recycling tank so as to be recycled. The operating handles are connected with the multi-way valve group, which makes detection simple and quick.

The invention discloses a method for detecting surface defects of anti-inflammatory drug granules. The method comprises the following steps: step one, acquiring a drug granule image in a drug board; to be specific, collecting a drug granule image by a color camera; step two, converting the image; to be specific, converting the drug granule image collected in the step one into an H1S1I1 image; stepthree, carrying out image correction; to be specific, correcting an image by referring to a template position to generate a new image; step four, converting the new image; to be specific, convertingthe newly generated image in the step three into an H2S2I2 image; step five, screening drug granule defects; to be specific, screening a drug granule communication area in the S2 image in the step four; and step six, evaluating the drug granule quality; to be specific, carrying out hole filling in the drug granule communication area in the step five, carrying out subtraction with an original imageto obtain a foreign matter region, and carrying out comparison on the foreign matter region and an area threshold (A2Min, A2Max) to determine the quality of the drug granule. Therefore, the detectionbecomes simple, convenient and rapid.

The invention discloses a test strip for rapid detection for a transgene product. The test strip comprises a sample pad, a colloidal-gold combination pad, a nitrocellulose membrane detection zone andan absorbent pad; the colloidal-gold combination pad is coated with a colloidal gold-labeled digoxin antibody; the nitrocellulose membrane detection zone is provided with a detection line and a quality control line; the detection line is formed by coating streptavidin on the nitrocellulose membrane detection zone; the quality control line is formed by coating goat anti-mouse IgG on the nitrocellulose membrane detection zone; a reaction product of the product to-be-detected is dropped onto a sample pad, and then is chromatographed in the direction of the absorbent pad through capillary action.

The invention discloses a method and system for detecting the welding quality of batteries. The method comprises the following steps: welding a battery module and detecting the surface temperature of a welded battery lug during welding; calculating the minimum allowable temperature of the surface temperature of the welded battery lug according to a fitting function which is obtained through fitting between the measured value of the surface temperature of the welded battery lug and the measured value of the peeling degree of the welded battery lug, and comparing the surface temperature of the welded battery lug with the minimum allowable temperature; and if the surface temperature of the welded battery lug is greater than or equal to the minimum allowable temperature, determining welding to be qualified, or otherwise, determining welding to be unqualified. The method for detecting the welding quality of batteries can simply and effectively detect whether the welding quality of batteries is qualified and has the advantage of accurate and reliable detection.

The invention relates to a lotus root starch adulteration identification method based on machine learning, which comprises the following steps of purchasing a proper amount of fresh lotus roots on the internet to prepare pure lotus root starch, preparing an adulterated lotus root starch sample for use on a machine, collecting spectral data of lotus root starch samples with different doping proportions, based on the obtained spectral data, establishing a machine learning clustering model for prediction, and performing adulteration prediction on the lotus root starch sample to be detected based on the established clustering model. According to the method, near infrared spectrum data of lotus root starch samples with different doping proportions are collected as an original data set, so that a machine learning clustering model is established, and the model can effectively identify adulterated lotus root starch samples. The method is simple and rapid in detection, the detection efficiency can be remarkably improved, a new method is provided for simplifying lotus root starch quality identification, and the method has very high practicability and wide application prospects.

A method of detecting a target molecule, the method comprising: forming a complex of a target molecule, a capture oligonucleotide, an oligonucleotide primer, and a single-stranded circular DNA; performing a nucleic acid amplification reaction by rolling circle amplification based on the formation of the complex; and detecting amplified nucleic acid; wherein the single-stranded circular DNA contains a first region, and a second region linked to the 3′-side of the first region, and preferably further contains a sequence complementary to a detection reagent-binding sequence; the primer contains a first aptamer sequence which binds to the target molecule, and a sequence which is linked to the 3′-side of the first aptamer sequence and is complementary to the first region of the single-stranded circular DNA; and the capture oligonucleotide contains a sequence complementary to the second region of the single-stranded circular DNA, and a second aptamer sequence which is linked to the 3′-side of the sequence complementary to the second region and binds to the target molecule.

The invention provides an ion mobility spectrometer which comprises a filtering device, an ionization source, an air pump and an electrode. A microporous electrode is arranged in the ionization zone to control the internal gas flow in a migration tube, since micropores form large gas resistance, when airflow in the ionization zone flows, the impact on a migration zone is small, and therefore, theimpact of air pressure on the migration tube is reduced.

The invention discloses a specific primer for detecting gyrovirus3 GyV3. The specific primer comprises an upstream primer and a downstream primer, wherein the nucleotide sequence of the upstream primer is as shown in SEQID NO.1, and the nucleotide sequence of the downstream primer is as shown in SEQID NO.2. A fluorescent quantitation PCR detection method of the gyrovirus3 GyV3 comprises the stepsof (1) performing a real-time fluorescent quantitation PCR reaction: extracting genome DNA of substances to be detected, performing PCR amplification through the specific primer, and deducing a standard linear regression equation (standard curve); and (2) performing result judgment: judging samples free from Ct value and free from an amplification curve to be feminine, and judging samples of whichthe Ct value is smaller than or equal to 36 and in which a typical amplification curve appears to be positive. According to the established method disclosed by the invention, safe, specific, quick, acute and simple quick detection of GyV3 can be realized, so that a method is provided for epidemiological investigation and early diagnosis of the gyrovirus3 GyV3, the specific primer has important significance, and the blank in relevant field at home and abroad is filled.

The invention discloses a method and a device for detecting the state of a permanent magnet in a permanent magnet synchronous motor for a vehicle and the vehicle. The method for detecting the state ofthe permanent magnet in the permanent magnet synchronous motor for the vehicle comprises the steps that the current running state of the vehicle is obtained; if the vehicle is in the neutral gear sliding state at present, the rotating speed and the quadrature-axis voltage of the permanent magnet synchronous motor are obtained; a permanent magnet flux linkage value is calculated according to the rotating speed and the quadrature-axis voltage of the permanent magnet synchronous motor; and whether the permanent magnet is in an abnormal state is judged according to the permanent magnet flux linkage value. According to the method for detecting the state of the magnet, the state of the permanent magnet is judged through the rotating speed and the quadrature-axis voltage of the permanent magnetsynchronous motor, other equipment does not need to be added, and the method is simple and effective and facilitates timely processing when the permanent magnet is in an abnormal state.

The invention provides a radionuclide subpackaging system. The radionuclide subpackaging system comprises a transverse base plate, a full-automatic subpackaging instrument, two square connecting blocks, L-shaped fixed blocks I, strip-shaped supporting blocks, arc-shaped clamping plates I and transverse threaded rods, wherein the full-automatic subpackaging instrument is fixedly mounted at the topof the transverse base plate; the two square connecting blocks are both fixedly mounted on the full-automatic subpackaging instrument; the L-shaped fixed blocks I are fixedly mounted on the corresponding square connecting blocks; the strip-shaped supporting blocks are fixedly mounted on the corresponding square connecting blocks; the arc-shaped clamping plates I are fixedly mounted on the corresponding L-shaped fixed blocks I; and the transverse threaded rods are rotatably mounted on the strip-shaped supporting blocks. The radionuclide subpackaging system provided by the invention has the advantages that the radionuclide subpackaging system is convenient to operate, nuclide liquid can be throttled and detected simply and effectively, and the operation of medical staff is facilitated.