47results about How to "With sensitivity" patented technology

The invention discloses a compound of a metal organic framework encapsulation corrosion inhibitor and a preparation method and application thereof. The compound is composed of a ZIF metal organic framework material and the corrosion inhibitor encapsulated in the ZIF metal organic framework material. A composite material system is applied to a sea wave splashing zone, and carbon steel or a metal product make a metal organic framework generate defects due to the local acidic environment in the initial stage of dry-wet circulation alternating corrosion, so that the corrosion inhibitor is released, and targeted protection of a corrosion-induced region can be realized. Furthermore, the copper ion modified thiazole corrosion inhibitor is encapsulated in the metal organic framework so that highertransfer capacity can be obtained. Meanwhile, copper ions are desorbed from a pre-coordinated corrosion inhibitor shielding site under an acidic microenvironment, and microbial corrosion caused by growth of various aerobic bacteria on the surface of a substrate can be further inhibited. The corrosion inhibition system is high in targeting property, efficient, durable, high in cost performance, remarkable in application value and wide in market prospect.

The invention provides a multi-mode touch sensing device, and belongs to the technical field of robot sensors. The multi-mode touch sensing device comprises a shell, wherein an image acquisition camera, a multi-array pressure sensor, multiple support structure components and a transparent elastomer are arranged in the shell, and the upper part of the transparent elastomer protrudes out of the toppart of the shell; the image acquisition camera is fixedly connected to the bottom part of the shell through a camera supporting plate; the multi-array pressure sensor is located above the image acquisition camera and is supported by the bottom part of the shell, the multi-array pressure sensor is provided with a light-transmitting hole, and the upper surface of the multi-array pressure sensor isprovided with transparent supporting blocks used for supporting the transparent elastomer; uniformly distributed light emitters are arranged on the periphery of the lower part of the transparent elastomer; and temperature sensors are arranged at the positions, protrudes out of the top part of the shell, of the periphery of the transparent elastomer. According to the multi-mode touch sensing device, the measurement of multi-mode information such as stress, texture and temperature is integrated in the same sensing device, and the touch sensing device has the advantages of being simple and compact in structure, high in measuring precision, capable of being repeatedly used and wide in application range.

The invention discloses a polypyrrole and metal nano-particle composite gas sensor and a production method thereof. The gas sensor adopts a ceramic matrix with interdigital gold electrode pairs; the surfaces of the ceramic matrix and the gold electrodes are covered with polypyrrole and palladium nano-particle composite gas-sensing films. The invention has simple production technique and low cost, which is particularly suitable for mass production. The prepared element has the advantages of high sensitivity, fast response, good recovery, strong stability, good selectivity and room temperature detection in ammonia detection, and can be widely used for accurate detection and control of ammonia gas in atmospheric environmental monitoring in the industrial and agricultural production processes.

The invention relates to a primer and a probe capable of quickly detecting the amplification of incising incision enzyme nucleic acid of salmonella at a constant temperature. A positive primer sequence is SEQ ID NO:1; negative primer sequence is SEQ ID NO:2; a sequence of a P1 probe is SEQ ID NO:3; and the sequence of a P2 probe is SEQ ID NO:4. The invention also provides a kit and an applicationmethod of the same. The kit contains the sequences of the primer and the probe and is used for quickly detecting the salmonella through the amplification at the constant temperature. The primer and the probe of the kit are designed according to conservative gene sequences of bacterial strains to be detected, so that specificity of a detecting method is ensured. Moreover, the detecting method has a sensitivity similar to a PCR (Polymerase Chain Reaction) detecting method, and only an ordinary water bath kettle is needed, instead of an expensive PCR instrument. Results can be detected by a universal quick assay board which can be used for quickly detecting amplimers of nucleic acid, instead of being observed by adopting a gel electrophoresis method. The kit has the advantages of simple structure, quickness, safety and no pollution, and is particularly applicable to a food inspection organization.

The invention discloses an infant sleep monitoring system and a method thereof, and relates to the computer vision monitoring field. An infrared laser and a digital CCD camera compose a vision sensing system, and the infrared laser is fixed below the CCD camera through a sensor support; an infant sleep bed is provided with a bedding, line laser projected by the infrared laser is projected on the bedding, the line laser is positioned at the lower part of the body of an infant, and the direction of the line laser is vertical to the direction of the body of the infant; the infrared laser projects onto the bedding to form a laser band, and the laser band is acquired by the digital CCD camera to form an image; the pitching angle of the CCD camera can be adjusted on the sensor support to make the narrow and long laser band appear in the center of the visual field of the CCD camera; and the digital image of the narrow and long band captured by the CCD camera is transmitted to a computer through 1394 image acquisition cards by a transmission cable to complete information processing in order to determine whether the infant kicks the bedding or not, that is, vision measuring software is utilized to detect the laser band and determine whether the infant kicks the bedding or not.

The invention belongs to the laboratory medicine technology field, which relates to a device and a method of utilizing saliva to execute clinical or non-clinical detecting HIV/AIDS virus. The device of utilizing saliva to execute clinical or non-clinical detecting HIV/AIDS virus includes a strip shape test kit, a columned liquid collecting filter, a piston, a sampling cup, a measuring pipette, phosphate buffer reagent and antihuman IgG antibody-gold colloid conjugate reagent. The invention also provides a method of using the device to execute clinical or non-clinical detecting for saliva. Through detecting the saliva sample, the invention can achieve the requirements of accurate, quick, convenient and secure clinical or non-clinical detecting of HIV/AIDS virus.

The invention relates to a preparation method and application of an electrochemiluminescence immunosensor based on Luminol/Au@branched PPy, and belongs to the field of an electrochemiluminescence sensor. Particularly, nanometer composite materials Au@branched PPy are used; Luminol is used as an electrochemiluminescence signal source, and the electrochemiluminescence immunosensor for detecting tumor markers is prepared. A single-order circulation pulse method is used for realizing the detection on the electrochemiluminescence intensity of objects to be detected at different concentrations.

The invention discloses an inter-satellite coherent light communication system based on composite axis phase locking, which can be applied to an inter-satellite light communication system with large-range and high-speed change of signal light frequency, and achieves real-time tracking of a local oscillator light phase to a received signal light phase by using a mode of combining laser temperaturetuning and external tuning. According to the inter-satellite coherent light communication system, a receiving end takes a field programmable gate array (FPGA) as a digital signal processor to realizethe extraction of a phase error signal, signal light and a local oscillation light frequency difference signal, and a local oscillator light temperature tuning port is driven to realize frequency unloading according to the signal light and the local oscillation light frequency difference signal. The inter-satellite coherent light communication system has the advantages that the features of wide range and low bandwidth of temperature tuning are combined with the features of narrow range and high bandwidth of external tuning; in the initial phase locking stage, rapid loop entry is achieved through temperature scanning, and after phase locking, the system can be guaranteed to keep stable operation of a loop in large-range frequency drift caused by the Doppler effect through real-time unloading of the frequency of temperature tuning; and the inter-satellite coherent light communication system can realize inter-satellite high-sensitivity homodyne coherent light communication.

The thermocouple is composed of upper insulation base plate 1, positive pole plate 2 and 2-1, middle insulation base plate 3, negative pole plate 4 and 4-1, and low insulation base plate 5. A first through hole is positioned at right side of the upper insulation base plate 1, and conductive terminal is embedded in the hole. A third through hole is at right side of low insulation base plate 5, and conductive terminal is embedded in the hole. There is first through trough in plate 2, and 2-1 is embedded in the through trough. Through holes or troughs are also made up on components 3 and 4. Stacking components 1, 2, 3, 4, 5 in sequences and sintering the stacked components at 1500-2500 deg.C and 0.1-80MPa produce the thermocouple. The disclosed thermocouple is as constituent of a measuring system in use for measuring temperature in harsh environment under condition of inert or vacuum environment.

The disclosed diphanadione test paper comprises a substrate, and a color paper. Wherein, the color paper is prepared as: dipping the filter paper in 10-20g/L solid organic acid, drying, dipping into 10-20g/L FeCl3 solution, and drying naturally. This invention is simple and portable, has some selectivity and sensitivity, and fit to fast on-field detection.

The invention relates to primers and probes for isothermally amplifying and rapidly detecting vibrio parahaemolyticus. The sequence of the forward primer is SEQ ID NO:1, and the sequence of the reverse primer is SEQ ID NO:2; the sequence of the probe P1 is SEQ ID NO:3; and the sequence of the probe P2 is SEQ ID NO:4. Meanwhile, the invention also provides a kit containing the sequences of the primers and the probes and used for isothermally amplifying and rapidly detecting vibrio parahaemolyticus as well as an application method. In the kit provided by the invention, the primers and the probes are designed according to the conservative gene sequence of a strain to be detected so as to ensure the specificity of the detection method. The method provided by the invention has similar sensitivity to the PCR detection method, an expensive PCR instrument is not required, and only an ordinary water bath pot is required. The result is not necessary to observe by using the gel electrophoresis method, only a universal nucleic acid amplification product rapid detection plate is required, and the method is simple, rapid, safe and free of pollution and is especially applicable to food detectioninstitutions.

The invention discloses a high-sensitivity surface plasma resonant cavity sensor corrected through graphene, and the sensor is characterized in that the sensor comprises a substrate layer and a metallayer which are overlapped from the bottom to the top. The metal layer is provided with a resonant cavity passing through the upper and lower surfaces of the metal layer. The periphery of the resonantcavity is symmetrically provided with a recessed first straight waveguide and a recessed second straight waveguide, wherein the bottoms of the first and second straight waveguides are each provided with a single graphene layer which is in overlapped connection with the substrate layer. The sensor provided by the invention is small in size, is quick in response, is simple in preparation process, is high in sensitivity, is high in Q value, and can achieve the nanometer-level sensing in the fields of biological and medical detection.

The invention relates to the biological detection field, discloses a colloidal gold rapid-testing card and kit for detecting vomitoxin and a method for detecting the vomitoxin and particularly discloses the colloidal gold rapid-testing card for detecting the vomitoxin. The colloidal gold rapid-testing card comprises a sample feeding region, a conjugate region, an observation region and a water suction region which are sequentially arrayed on a base plate. The invention further discloses the method for detecting the vomitoxin. The method comprises the steps of carrying out pretreatment on a to-be-tested sample so as to obtain a vomitoxin extract, detecting the vomitoxin extract by virtue of the colloidal gold rapid-testing card, and carrying out result analysis. The invention simultaneouslydiscloses the kit for detecting the vomitoxin. The kit is characterized by comprising the colloidal gold rapid-testing card and a water bottle filled with purified water. According to the colloidal gold rapid-testing card, the detection sensitivity, specificity and precision can be rapidly improved.

The invention discloses a novel colorimetric test pen, which is obtained by reconstructing and innovating based on common syringes in markets, is a liquid taking device adjusted by double pressures, and is designed for the first time according to the design principles of pH test paper, proceeding from the color reaction of objects under test. The test pen disclosed herein is a simple and convenient test pen for detection which combines sampling, releasing developer and color comparison as a whole. The test pen disclosed herein meets the requirements of people for instant detection, and is a popular, simple and portable testing arrangement.

The invention discloses a method of detecting single base mutation and application. The method includes the steps that primers are designed targeted to a sample to be detected and a target segment for reference, and PCR is subjected to amplification; amplification products are subjected to balanced mixing, high-temperature denaturation is conducted, then annealing is conducted, heteroduplex DNA is obtained, then CEL I enzyme digestion is conducted, an enzyme-digested product is subjected to electrophoretic determination, and a single-base mutation sample is determined; two segments subjected to CEL I enzyme digestion are recycled, and each segment is connected with a connector provided with an A, or T, or G or C sticky tail end; one of upstream primers and downstream primers for amplification of the target segment and one of forward and reverse primers designed based on the connector sequence form two pairs of primers, each connection product serves as a template, and PCR amplification is conducted; electrophoretic detection is conducted. By means of the method for detecting single base mutation, known single base mutation can be detected, unknown single base mutation can be further screened, the position of mutation can be determined, the type of mutation can be further determined, sensitivity is high, repeatability is good, and the economic property is achieved.

The invention adopts a magnetic field probe adopting an isolation via-hole structure. The magnetic field probe comprises a symmetric non-shielding ring, a grounding via hole, a strip line, isolation via holes, a signal via hole, an adapter, a non-shielding ring symmetric arm extension line, a strip line upper shielding layer, a strip line lower shielding layer, a strip line medium and a strip linesignal line. The symmetric non-shielding ring is arranged in the interlayer of the medium material of the strip line to ensure strength of the symmetric non-shielding ring; one arm of the symmetric non-shielding ring is directly connected with the strip line signal line, and the other arm is connected with the upper shielding layer and the lower shielding layer of the strip line through the non-shielding ring symmetric arm extension line and through the grounding via hole; the isolation via holes are arranged in the strip line, and are connected with the upper shielding layer and the lower shielding layer of the strip line, and meanwhile, are arranged between the grounding via hole and the strip line signal line; and the other end of the strip line signal line is connected with the adapter through the signal via hole.

The invention belongs to the technical field of medical equipment, and discloses a kit system for clinical examination and an application thereof. The kit system is provided with a lower shell, a plurality of first reagent grooves are formed in the lower shell, and an anti-skid layer is installed on the inner walls of an anti-skid groove. An upper shell is installed on one side of the lower shellthrough a rotating shaft, the upper shell is hollow, a partition plate is installed on the upper portion, a plurality of through holes are formed in the middle of the partition plate, second reagent grooves are sleeved with the through holes, rotating rods are fixedly installed at the bottoms of the second reagent grooves, and rotating discs are fixedly arranged in the middles of the rotating rods. A small motor is fixedly mounted on the right side of the upper shell. A handle is integrally arranged on the lower side of the bottom of the upper shell. According to the invention, more reagent tubes can be stored, and the reagent tubes can be effectively prevented from accidentally sliding off from the reagent grooves; reagent tubes placed in the second reagent grooves are shaken up through the small motor, so that manpower and time are saved; the upper shell and the lower shell can be buckled through the rotating shaft, the reagent tubes inside can be effectively protected, and the kit is convenient to carry through the handle on the upper shell.