564 results about "Testing tubes" patented technology

This invention relates to a strain monitor system for slope distributed fibers, which lays out several parallel special optical cables along the slope or at least lays out one close to the slope top and the corner separately, adheres symmetrically two fibers on the outer surface of a tilt testing tube to get the distortion of deep soil helped by the strain of the tube, the special optical cables are melted orderly to constitute a sensor circuit to be connected to BOTDR, which links with remote computers via local computer and internet to constitute distributed fiber strain monitor system and gets the distortion or displacement of the slope by integrating and summing the measured strain distribution further to evaluate and preset to the side slope.

A multi-tube differential pressure (Delta P) testing system for testing catalyst filled tubes of tube and shell type catalytic reactors has at least one mobile test unit for movement on the upper tube sheet of a catalytic reactor. An array of test probes is mounted to the mobile test unit and is selectively positionable in sealed gas pressure communicating engagement within the upper ends of selected reactor tubes. A pressure testing gas delivery system is interconnected with the test probes and selectively communicates pressurized gas to the testing tubes at a blow-down pressure or selected test pressure determined by restricted orifices. A differential pressure measurement system measures the back-pressure resulting from application of test pressure to individual reactor tubes and having a computer receiving electronic back-pressure measurement data and producing an electronic and/or visual record correlated with a reactor tube numerical sequence and identifying the resulting back-pressure of each reactor tube of the multi-tube test. The testing system is capable of selectively electronically counting in normal sequence and in inverted sequence to accommodate test unit orientation and incorporates a separate manually positioned testing wand to accommodate tube positions of the reactor that cannot be readily accessed by one or more of the array of test probes.

The invention provides a method and device for carrying out polymerase chain reaction under a constant-temperature heat source, and specifically relates to a method for providing heat to or taking away heat from a specific area of a reaction test tube based on a Rayleigh-Benard theory to build a temperature gradient from bottom to top of reagents in the reaction tube, spontaneously carrying out convection under the condition that the reaction reagents are unevenly heated, and carrying out corresponding PCR (Polymerase Chain Reaction) amplification when the reaction reagents flow through different temperature areas. The invention also discloses a device for carrying out the reaction of the method and in-time fluorescence detection.

This device for processing a blood product sample included in tubes (18) loaded in cassettes (12) and closed with plugs. The moving means 10 is designed to individually move the cassettes on a predetermined path. The agitating means 30 has at least one pickup mechanism (32) that can be started by a driving means (88), and picks up at least one selected tube from the immobile cassette on the path, moves the tube far from the cassette, agitates the tube and returns it to the cassette. The sampling means (34) is designed to take away a predefined sample quantity from the pre- agitated tube returned to the cassette and applicable to a blood analysis.

The invention provides a fish swimming capability measuring method and a submerged open-type measuring device. The method includes 1, making preparation before experiments; 2, testing and correcting systems; 3, testing swimming capabilities of fishes; 4, collecting experiment data; and 5, maintaining and cleaning the systems. A water outlet tube with a water level adjusting device is mounted at the bottom of a water tank of the submerged open-type testing device. A support, an experiment table base, a stabilizing cove and a testing tube are mounted in the water tank. A water current creating system formed by a motor, a water inlet hole and a vane wheel is arranged at one end of the testing tube. The water current creating system and a test area with an inspection window are respectively connected with two ends of a rectifying device. The test area with the inspection window is connected with a flow rate test area. A current meter is mounted in the flow rate test area connected with a water level control area. A water current flow rate monitor, a frequency conversion controller and a water quality monitor are mounted on a control panel. A water inlet tube is mounted at one end of the upper portion of the water tank.

The invention relates to an automatic labeling device in blood sample separation, which comprises a frame, a test tube rotating disk, a scanner, a single chip microcomputer, a printer, a label-delivering mechanism, a label paper tape, and a label paper stop block; the scanner collects bar code information on a blood sampling bag; the printer prints the collected bar code information on a non-setting adhesive label on the label paper tape; a plurality of test tube mounting holes are disposed on the test tube rotating disk; the label-delivering mechanism is provided with a guide roller, a tension wheel supporting the label paper tape, and a pressing wheel; the guide roller is driven by a motor to rotate and deliver the label paper tape; the label paper stop block is mounted near the edges of the test tube mounting holes. The invention integrates scanning, printing, positioning, and labeling, can ensure that the bar code information of a same blood sample is accurate and unique on each of the test tubes during blood sample separation and reservation, thus effectively ensures the safety of blood transfusion, and ensures the life safety of a blood receptor. The invention has reasonableconstruction and convenient operation, and is especially applicable to disposable blood sample separation.

The invention relates to an automatic cover opening or closing and carrying device for a sample test tube, and solves the technical problems of low efficiency, high cost, easy bacterial infection of operators and negative influence caused by artificial and environmental factors during manual operation of an existing microorganism sample test tube. The device comprises a machine table, a test tube clamping vertical movement electric cylinder, a test tube top rotary motor, a test tube clamping bottom rotary electric cylinder, a test tube clamping electric cylinder and a test tube cover opening clamping electric cylinder, wherein the test tube clamping bottom rotary electric cylinder is connected with the machine table; the test tube clamping vertical movement electric cylinder is connected with the test tube clamping bottom rotary electric cylinder; the test tube clamping electric cylinder and the test tube top rotary motor are connected with the test tube clamping vertical movement electric cylinder respectively; the test tube clamping electric cylinder is provided with two clamping jaws; the test tube top rotary motor is connected with a cover screwer; the test tube cover opening clamping electric cylinder is connected with the machine table and provided with two clamping jaws. The device is widely applied to the technical fields of microorganism inoculation, clinics, chemicals, environments and the like.

The invention provides a preparation method of virus-free seedlings of sweet potato. The method comprises the following steps: placing sweet potato blocks that are exposed under the sun and matured banana together for 3 to 5 days; planting the sweet potatoes in sandy soil to accelerate the germination in a culture box; setting relatively high temperature; picking 1-2cm top end of the seedling based on the length; cutting off the visual leaves; disinfecting the surface; rinsing with sterile water; picking off stem tip with 1 to 2 leaf primordium; inoculating to the corresponding culture medium to respectively induce differentiation of adventitious buds and generation of somatic embryogenesis; performing virus detection to a regeneration plant; performing subculture for the virus-free seedling; hardening-seedling; directly planting into a plastic greenhouse; performing flood irrigation with more water; preventing direct exposing under sun at noon in the first two weeks after transplanting; applying urea three weeks after transplanting; watering to obtain virus-free seedlings. According to the preparation method of the virus-free seedlings of sweet potato, the virus-free test-tube plantlets are acclimated and then directly planted into the plastic greenhouse, thus the survival rate is obviously raised, and the operation processes are decreased; the process of acclimating in an acclimating room is saved, and as a result, labor, materials and property are saved.

The invention discloses a production technology for cordyceps militaris mycelium. The production technology mainly comprises the procedures of preparation of a test tube stock culture, culture medium preparation and culturing mode of a liquid strain, culture medium preparation and culturing mode of mycelium, and the like. The defects of the materials adopted by a culture medium are complex, the manufacturing cost is high and the liquid strain culturing condition is high in the prior art are changed by adjusting a formula and a technology according to the invention; after the mycelium is cultured and subjected to color transfer, the main components and pharmacology of the mycelium are more approached to those of the natural cordyceps militaris; and the production technology has the advantages of simple method, low comprehensive production cost, capability of performing large-scale production, and higher developing value.

The invention relates to a water quality online security early warning system and method thereof. The water quality online security early warning system comprises a biology avoidance behavior sensor which consists of two testing tubes, wherein, the two tubes are communicated through a two-way in the middle and parallel with each other; the two tubes are respectively provided with two groups of stainless steel monitoring electrodes, each group of electrodes consists of a signal transmitting electrode and a signal receiving electrode, wherein, the signal transmitting electrode forms a positive rotation low voltage alternating electric field in the testing tube, and the signal receiving electrode can induce changes of the electric field; the changes of the electric field are transmitted to a signal collecting device, and displayed through a display after being processed. The invention can display behavior change signal of a tested biology with the mode of electrical signal received from multi-point monitoring, can achieve online biology monitoring of original position, online and real time via analyzing and evaluating the electrical signal, and can warn early against unknown contaminants in water body, and has very important indicating effect for the investigations of environmental pollution, in particular for paroxysmal and severe accidental changes.

The fast propagation method of hemp for industrial use is one hemp tissue culture process including the steps of sterilizing seed, obtaining bacteria-free seedling, culturing lateral bud and rooting culture. The hemp tissue culture process has no limitation of seasons, saving in seedling culture field, low production cost, capacity of maintaining all the excellent characteristics of the mother plant and stability of the genetic characteristics. The present invention can form great amount of tube seedling in short period for mass planting of hemp.

An automated analyzer for analyzing patient samples. The analyzer includes a plurality of cuvettes, which allow the samples to be mixed with various reagents. The analyzer includes one or more detectors, including a detector adapted to detect luminescence of the reaction mixture in the cuvettes. The analyzer allows for various diagnostic assays to be performed on a single system, and provides for high-sensitivity analysis at faster speeds.

The invention discloses a device and a method for automatically scanning test tube bar codes. The device comprises a scanning device used for scanning the test tube bar codes, a tube rotation device used to pick up a test tube and rotate the test tube, a first drive device which is connected with the tube rotation device and drives the tube rotation device to do vertical motion on a main body of the device, and a second drive device which is connected with the tube rotation device and drives the tube rotation device to do horizontal motion on the main body of the device. The tube rotation device comprises a tube clamp which picks up the upper part of a test tube, a tube rotation driver which drives the tube clamp to rotate, and a tube separating mechanism which makes the test tube separate from the tube clamp. The device can realize production line type operation for test tube bar code scanning, and in test tube feeding, the device is not limited in single-channel production line operation, and at least two rows of test tubes are fed in, thereby improving working efficiency. The device is simple in design, compact in structure, and small in appearance, and saves space.

The invention relates to a method for preparing selenium-abundant mushroom powder. Wherein, it plants the mushroom seed into PDA culture medium to cultivate seed in tube; plants tube seed into PDA selenium-abundant culture medium to process solid product seed cultivation; cultivating the solid product seed in PDB selenium-abundant container to process solid mother cultivation; plants liquid mother into PDB selenium-abundant culture medium to process selenium-abundant little mushroom cultivation; separates the selenium-abundant little mushroom from culture medium; drying and breaking into powder. The invention has high culture speed and low material consumption. And the product has high organic selenium convert ability, and high selenium content.

According to an aspect of the present invention, there is provided a bio cell cleaning centrifuge including: a motor; a rotor rotated by the motor; holders that are equipped on the rotor and that hold test tubes to be pivotable toward a rotational radial direction of the rotor; a cleaning liquid distributor mounted on the rotor to supply a cleaning liquid to the test tubes; a locking mechanism that locks the holders so that the test tubes are in a vertical state with respect to the rotational radial direction; and a controller that controls the motor and the locking mechanism, wherein the holders are configured to hold the test tubes so that central axes thereof are inclined from a rotational axis direction toward a rotational tangent direction of the rotor.

The invention relates to a method for preparing fruit and vegetable fermented beverage with active probiotics, and belongs to the technical field of functional beverage. The method includes preparation steps of (1), preparing pulp, to be more specific, selecting fresh fruits and vegetables, cleaning the fresh fruits and vegetables and then carrying out cell-wall breaking smashing on the fresh fruits and vegetables by the aid of liquid nitrogen deoxygenation mashing technologies so that the particle sizes of raw materials reach 2-8/1000 mm at the low temperatures; (2), disinfecting fruit and vegetable pulp juice, to be more specific, mixing the fruit and vegetable pulp juice and an appropriate quantity of water with each other to obtain mixed liquid, heating the mixed liquid under the high pressures until the mixed liquid is slightly boiling for 3-10 min and then cooling the mixed liquid in aseptic environments until the temperature of the mixed liquid reaches the room temperature; (3), preparing seed liquid, to be more specific, respectively fetching an appropriate quantity of bacteria from oblique planes of bacterium test tubes, inoculating the bacteria in MRS liquid culture media, carrying out anaerobic or aerobic fermentation maturity on the bacteria under certain conditions and storing the bacteria at the low temperatures for standby application; (4), fermenting the disinfected fruit and vegetable pulp juice, to be more specific, regulating the pH (potential of hydrogen) of the disinfected fruit and vegetable pulp juice, then inoculating a certain quantity of the seed liquid in the fruit and vegetable pulp juice, adding an appropriate quantity of sugar into the fruit and vegetable pulp juice and statically fermenting the fruit and vegetable pulp juice until the fruit and vegetable pulp juice has certain sourness; (5), filtering fermented liquid, to be more specific, filtering the fermented liquid and removing large-particle matters in the fermented liquid until the fermented liquid is free of visible impurities; (6), compounding and homogenizing fermented primary pulp, to be more specific, uniformly mixing the fermented primary pulp and an appropriate quantity of dissolved edible gum with each other and then homogenizing, emulsifying and treating the fermented primary pulp; (7), seasoning homogenized and emulsified liquid, to be more specific, proportionally adding appropriate quantities of sweetening agents and citric acid into the homogenized and emulsified liquid and regulating taste of the homogenized and emulsified liquid; (8), packaging the fruit and vegetable fermented beverage. The method has the advantages that the fruit and vegetable fermented beverage contains the abundant active probiotics, accordingly, intestines and stomachs can be comprehensively tended and protected, the intestinal flora balance can be regulated, and the dietary health of human bodies can be promoted.

The invention relates to a preparation method for producing straw protein feed by using microorganism straw fermenting agents, which belongs to a preparation method of producing organism feed by microorganism technical transform. The preparation process of the method is as follows: inclined strain variety, test-tube liquid strain variety, primary liquid culture, secondary culture, liquid culture, fermentation tank or vat liquid, solid fermentation, drying, crushing strain culture. Crop straws of China are used fully through physical action and biological action, and are transformed into high nutritious biological feed to replace grain. The straw protein feed with microorganism straw fermenting agents has the advantages of low cost, wide raw materials, short fermentation period, easy popularization, simple and convenient operation, great adaptability and so on.

The invention discloses a full-automatic series verification calibrating device with a pressure-resistant water meter. The full-automatic series verification calibrating device with the pressure-resistant water meter comprises a water meter calibrating foundation mechanism, flow counting mechanisms, a counting mechanism, a pipeline and an operation system. The water meter calibrating foundation mechanism comprises a testing tube section which is formed by multiple testing straight tube sections and multiple water meters to be inspected, wherein the multiple testing straight tube sections and the multiple water meters to be inspected are connected in series at intervals; each water meter to be inspected corresponds to a flow counting mechanism; the counting mechanism comprises an electronic weighting device and a working container; the tail end of the testing tube section is guided into the working container through the pipeline; the operation system is electrically connected with the flow counting mechanisms and the electronic weighting device in a two-direction mode. The full-automatic series verification calibrating device with the pressure-resistant water meter achieves full-automatic meter inspection by utilizing remote control of a computer combined with a single chip controlling mechanism which gives priority to the filed programmable logic controller (PLC) control or an embedded system. Compared with the inspection method of a meter in the prior art, the full-automatic series verification calibrating device with the pressure-resistant water meter greatly improves using efficiency of an inspection device of the water meter and shortens inspection time of the water meter on the basis of ensuring measuring accuracy and eliminating human errors, and greatly improves working efficiency of inspection staff in a large range at the same time.

The present invention relates to an enhanced extracting and sampling device for collecting faeces samples, particularly suitable for performing laboratory diagnostic tests in a total laboratory automation, in particular for dosing one or more analytes, and allowing the screening of markers of diagnostic interest for purposes of prevention and treatment.

Such a device for sampling faeces may indeed be received and processed by robotic systems in highly automated analysis laboratories as the samples of body fluids (whole blood, plasma, serum, etc.) are processed.

The invention discloses a full-automatic vacuum test tube uncapping machine, which comprises a frame, a test tube cap collection box, an uncapping stand, an uncapping stand lifting drive device, a test tube box, a test tube box transferring device and a test tube box positioning device, wherein cylindrical holes for accommodating test tubes and extrusion holes are distributed on the test tube box; a rubber cover is arranged in each cylindrical hole; each cylindrical hole is correspondingly provided with an extrusion block; one end of the extrusion block contacts a rubber ring, while the other end stretches into each extrusion hole; annular holes which can be inserted by the test tubes are distributed on the uncapping stand; a horizontally arranged uncapping plate is arranged in the uncapping stand; uncapping holes are formed on the uncapping plate; the uncapping plate is driven by an uncapping plate drive device and can move left and right in a horizontal direction in the uncapping stand; a push rod is arranged at the bottom of the uncapping stand; and the push rod comprises a conical part and a cylindrical part. The full-automatic vacuum test tube uncapping machine has the advantages of small volume, simple structure, high efficiency, strong practicability, high safety, low manufacturing cost and the like.

The invention discloses a device for conveying plastic test tubes. The device comprises a test tube bin, a carrying platform, a material distributing device and a test tube flow channel. An upper opening is formed in the upper portion of the test tube bin, and a cone-shaped bin and a test tube outlet connected with the cone-shaped bin are arranged on the lower portion of the test tube bin. The longitudinal dimension and the transverse dimension of the test tube outlet are matched with diameters and lengths of the test tubes. The carrying platform comprises a test tube gap and is located below the test tube bin, and the vertical height from the lower edge of the test tube outlet to the upper surface of the carrying platform is equal to or larger than the diameter of one test tube and smaller than the sum of the diameters of two test tubes. The material distributing device comprises a material distributing plate and is installed above the carrying platform, and the test tube flow channel comprises a flow channel opening and is installed below the carrying platform. According to the device for conveying the plastic test tubes, through cooperation of the test tube bin, the material distributing device and the test tube flow channel, the purposes that one test tube is output at one time and an opening of each test tube is upward are achieved, manual repeating labor is liberated, reliability and stability of test tube outputting are high, and external interference factors are less, so that the device for conveying the plastic test tubes has obvious advantages.

Applying a strong static DC electric field to supersaturated aqueous glycine solutions resulted in the nucleation of the γ polymorph attributed to the electric-field induced orientation of the highly polar glycine molecules in large preexisting solute clusters, helping them organize into a crystalline structure. A method to induce crystallization and to prepare polymorphs and/or morphologies of materials by using a static electric field to cause nucleation and crystal growth to occur in a supersaturated solution in such a way as to obtain a crystal structure that would not normally appear without the use of the static electric field. Aqueous glycine solutions were prepared by combining solid glycine and water. Supersaturated solutions were generated by heating the tubes to 62-64° C. and holding them at that temperature in an ultrasonicator overnight. Once the glycine was completely dissolved, the solutions were slowly cooled to room temperature. A chamber was constructed consisting of two brass electrodes separated by a 5 mm insulating gap, with a hole drilled down through the center, parallel to the gap-electrode interface, with a diameter large enough to accommodate the test tube. A DC voltage was applied across the electrodes, large enough to produce electric fields in the range of 400,000 to 800,000 V/m. Tests tubes containing the aged solutions were placed in the high-voltage chamber. Exposure of the aged solutions to fields of 600,000 V/m resulted in crystallization typically within 30-90 min. The onset of nucleation was observed visually by the formation of a needle-shaped crystallite.

The invention discloses a roadbed horizontal displacement and vertical displacement comprehensive testing system which comprises a testing tube, a sedimentation magnetic ring, a measuring probe , a double-core cable, an electromagnetic intensity display instrument and a horizontal displacement display instrument. The testing tube is vertically placed in a roadbed drill hole; the testing tube is sleeved with the sedimentation magnetic ring along the tube periphery; a groove rail is longitudinally arranged on the inner wall of the testing tube along a tube body; the measuring probe which is of a cylinder structure is arranged in the testing tube; a roller of the measuring probe is clamped into the groove rail of the testing tube and can enable the measuring probe to vertically move in the testing tube; an angle sensor and a magnetic field intensity sensor in the measuring probe are respectively connected with the horizontal displacement display instrument and the electromagnetic intensity display instrument by the double-core cable. The horizontal displacement and vertical displacement comprehensive testing system which the invention relates to integrates horizontal displacement and vertical displacement testing equipment into one set of system; the testing tube is only buried in one roadbed drill hole; the horizontal displacement and the vertical displacement of a roadbed are simultaneously tested by the probe moving in the testing tube; the electromagnetic intensity display instrument is added; testing accuracy is improved; a more suitable technical means is provided for monitoring deformation of the railway roadbed.

The invention discloses a device and a method for taking up and laying cable conductors synchronously. A driving device and a rotating shaft are fixedly connected; the rotating shaft is fixed on a bracket by a bracket bearing; one end of the a torque limiter is fixed on the rotating shaft, a reel bearing at the other end thereof is sleeved and connected with a reel; the cable conductor is wound on the reel; a signal transferring box is fixed on the bracket and adopts a paired brush structure, and is electrically connected with the cable conductor wound on the reel. The method comprises the steps of: A. loosening a movable plug; B. pulling the cable conductor to a needed length synchronously; C. inserting the movable plug; D. meshing the torque limiter; E. pulling the cable conductor synchronously by an encoder positioning device; F. rotating the reel for taking up the conductor; and G. arranging the cable conductor between the encoder positioning device and the reel. The method is applicable to synchronous taking-up and laying of a plurality of cable conductors in foundation pile integrality detection; and the conductors are respectively put into a plurality of sound testing tubes, and the plurality of pulled cable conductors are synchronously taken up to respective reel in the lifting detection process.

The invention discloses an inspection test tube storage device for laboratory departments. The device comprises a storage device body, which consists of a support mechanism, a cleaning mechanism, a storage mechanism, an oscillation mechanism, a mixing mechanism and a placement box. The bottom of the placement box is fixedly connected to the support mechanism, and the placement box is internally provided with the cleaning mechanism. The device has a compact structure, is convenient for storage and use of test tubes, by setting the cleaning mechanism, during use, test tubes can be cleaned and dried by the cleaning mechanism, thus increasing the convenience of test tube cleaning, increasing the multifunctionality of the storage device, and avoiding the problem of poor test tube utilization rate caused by the rigid structure of the storage device. By setting the mixing mechanism, the storage device can perform oscillation and mixing treatment on detection reagents, reduces the reagent reaction time, improves the work efficiency of inspection, and lowers the labor intensity of the staff.