44results about How to "Use forever" patented technology

The invention relates to a material for regulating and improving the soil structure, soil compactness, and soil chemical properties and physical properties of a swelling soil roadbed. The technical scheme is that: a swelling soil stabilizer comprising a main component of dodecylbenzene sulfonic acid and a swelling soil firming agent comprising a main component of polyvinyl alcohol are combined to improve the chemical and physical properties of swelling soil. The swelling soil stabilizer regulates the components and molecular structure of the swelling soil so as to improve the structure, compactness and expansion and shrinkage performance of the swelling soil, and recombine the structure of the swelling soil; the firming agent is used to firm swelling-shrinking soil, reduce the swelling ratio, improve bearing capacity and reduce construction cost so as to reasonably use human, financial and material resources, and the aim that civil engineering including road engineering is durable is fulfilled; and after being rolled, the soil can be compressed to achieve high compactness, reduce an osmotic coefficient and improve soil consolidation capacity, so that the damage of water to the roadbed is reduced and the frost boiling phenomenon of the roadbed is effectively prevented.

The invention relates to a far infrared ceramic material. The material is multi-element mixed superfine powder which is prepared by mixing the following components in part by weight: 5 to 15 parts of zirconium oxide, 10 to 30 parts of zirconium silicate, 5 to 15 parts of feldspar, 10 to 20 parts of alpha-alumina, 5 to 15 parts of manganese oxide and 1 to 3 parts of boron nitride, wherein the average particle size of the multi-element mixed superfine powder is less than or equal to 1 micron. The zirconium oxide, the alpha-alumina and the manganese oxide in the raw materials adopted by the far infrared ceramic material have high far infrared emission performance; a coating which is formed by the zirconium silicate and the feldspar has compactness and high-temperature resistance; and the boron nitride has lubricity and adhesion resistance. The far infrared ceramic material is suitable to be applied to boiler water wall tubes, heating tube walls, high-temperature drying rooms and the like.

The invention relates to a method for building a greenhouse for cultivating mushrooms, comprising the following steps: selecting a greenhouse position; determining the building size; setting air holes; manufacturing a greenhouse frame; pouring a front leg grade beam by concrete; covering a plastic film, and pressing and covering a grass curtain; deviating the greenhouse position to the shade for 5-7degrees; and causing the ratio of ridge height to width is 1:(2.5-2.7). The rear wall is a hollow wall of which the upper part is provided with an arch centre nest groove, and the lower part is provided with the air holes; the greenhouse frame is formed be welding arch centres, a big-ridge beam and a tie rod; the front leg of the arch centre is sheathed into a steel pipe corresponding to the front leg ground beam of the concrete and is firmly welded; the rear leg of the arch centre is embedded into a reserved gap in the rear wall and is fixed by cement mortar; the distance between every two arch centres is 90cm; and the whole greenhouse frame forms a whole with the wall after being firmly welded. In the greenhouse, the rear wall occupies small land, and soil does not need to be filled behind the wall to make a slope, thereby bringing strong wind resistance; a back slope angle does not have wind resistance obstacles; the best height-to-width ratio is characterized by perpendicular incidence of sun on the winter solstice; the greenhouse has a good heat insulation and cooling effect and can fruit in four seasons without using other heating and cooling facilities.

The invention discloses a 5-50 microliter 60-sucker liquid transfer device and belongs to the technical field of analytical chemical equipment. Mutually perpendicular holes are respectively formed in four corners of a base plate, bottom feet are installed at the lower ends of the holes, columns are installed at the upper ends of the holes, and bolts penetrate through the holes formed in the base plate from the lower ends of the bottom feet to be connected with the lower ends of the columns. Three through holes are respectively formed in the longitudinal middle of the base plate, the middle through hole is connected with a liquid tank through bolts, and positioning pins at the lower end of the liquid tank are inserted into the through holes formed in two sides. A deep liquid tank and a shallow liquid tank are respectively located in the liquid tank. A sucker frame is installed at the upper end of the liquid tank, 60 through holes are formed in the sucker frame, and the spacing of every two adjacent through holes is 12 mm. A sucker assembly is structurally that a sucker seat is a rectangle, 6 rows of through holes are dilled in the middle in the longitudinal direction, one row of through holes is drilled in the horizontal direction, the longitudinal through holes are crossed and communicated with the horizontal through holes in a mutually perpendicular mode, a threaded hole for installing a main air pipe is formed in the middle of the upper end perpendicular to the cross points, and 60 holes which are spaced at intervals of 12 mm and used for installing suckers are drilled in the lower end perpendicular to the 6 rows of longitudinal through holes.

The invention discloses an AUV (Autonomous Underwater Vehicle) underwater recovery docking system based on multi-acoustic-beacon guidance, which comprises an AUV and an underwater recovery platform. Aplurality of transducers are installed on the recovery platform as acoustic recovery beacons, and an acoustic receiver capable of receiving transducer signals and a corresponding processing module are installed on the AUV. The transducers on the recovery platform send out acoustic positioning signals, and the AUV calculates the relative deviation between the AUV and the central axis of the recovery platform according to the phase difference or arrival time difference between the received acoustic signals and corrects the horizontal position, the vertical position or both of the two positions.An AUV control part can control the position and direction of the vehicle in the recovery process to be located on the central axis of the recovery platform as much as possible in the horizontal plane and the vertical plane, and meanwhile the vehicle corrects the advancing posture, speed and the like of the vehicle through other carried sensors so as to achieve accurate butt joint with the recovery platform.

A formaldehyde wastewater pretreatment method is disclosed and comprises the following steps: (1) inputting formaldehyde-containing wastewater into a formaldehyde wastewater collection tank, and adding liquid caustic soda into the formaldehyde wastewater collection tank to adjust the pH value of the formaldehyde wastewater to 11-13, and (2) preheating the formaldehyde wastewater of which the pH value is adjusted through a heating device, preheating the formaldehyde wastewater to 60-80 DEG C, inputting the preheated formaldehyde wastewater into a formaldehyde wastewater catalytic reaction tower, presetting calcium carbonate in the formaldehyde wastewater catalytic reaction tower, and performing glycan reaction on formaldehyde and liquid caustic soda under the catalytic action of the calciumcarbonate to obtain a glycan product, and a metering pump is arranged on a pipeline for connecting the heating device with the formaldehyde wastewater catalytic reaction tower, the metering pump controls the preheated formaldehyde wastewater to enter the formaldehyde wastewater catalytic reaction tower, and the retention time of the formaldehyde wastewater in the formaldehyde wastewater catalyticreaction tower for glycan reaction is 3-5 hours.

The invention discloses a zirconium group hydrophile chromatographic column and an application thereof in measuring the melamine content in a raw milk or dairy product. Melamine in a sample is extracted in an ultrasonic, oscillating and centrifuging manner by using a 1% trichloroacetic acid-acetonitrile solution, and HPLC or LC-MS/MS segregation analysis is carried out on sample liquid filtered through a 0.2um filter membrane by using the zirconium group hydrophile chromatographic column. The method for measuring the melamine content in the raw milk or dairy product by using the chromatographic column is simple and convenient, rapid, sensitive and accurate, high in repeatability and low in detection cost. The separating mode is beneficial to the preparation of samples, so that the sample pretreatment is simple in operation, rapid, and high in recovery rate, has no interference on analysis and measurement, the samples can be treated in a batch manner, the time is saved, the measuring cost is reduced, the chromatographic column has long service life, and the indexes are superior to those by using a GB/T22388-2008 method. The method can be widely applied to detecting the melamine in the raw milk or dairy products.

The invention discloses a method for planting gastrodia elata in a greenhouse. The method comprises the steps of mushroom stick making, site building, greenhouse building, gastrodia elata cultivation and planting management. The greenhouse and a cement pit are built on an open field for gastrodia elata cultivation, site selection flexibility is realized, and greenhouse building permanency and cement pit building practicality are realized. By the adoption of the method, standardized cultivation can be achieved, land resources can be effectively utilized, and manpower and materials are saved; by planting gastrodia elata in the cement pit, complete isolation of honey mushroom sticks and soil can be achieved, soil contamination is effectively controlled, influences of soil heavy metal and pesticide residues on mushroom sticks are avoided, and therefore the greenhouse can be used permanently. Gastrodia elata cultivated with the method is low in contamination rate, high in yield and low in cost. By adopting an anti-drop film and a heat insulation plastic film for covering, heat insulation can be achieved, uniform scattered light is available for the interior of the greenhouse, and gastrodia elata and mushroom sticks can grow well.

The invention discloses a vacuum drop-out-type switch. A drop-out action mechanism of the vacuum drop-out-type switch comprises a support frame, a first hinge base, a second hinge base, a crank arm, afirst permanent magnet action mechanism and a base. The first hinge base, the second hinge base and the first permanent magnet action mechanism are mounted on the support frame. A first connection plate is mounted on the first hinge base. One end of the first connection plate is hinged with the first hinge base, and the other end of the first connection plate is hinged with the upper portion of the base. A second connection plate is mounted on the second hinge base. One end of the second connection plate is hinged with the second hinge base, and the other end of the second connection plate ishinged with the middle of the crank arm. One end of the crank arm is hinged with a driving rod of the first permanent magnet action mechanism. The other end of the crank arm is connected with the lower portion of the base. The lower end of a tube of a vacuum switch component is fixedly connected with the base. A main connection terminal is arranged at the top end of the tube. An outgoing-line terminal is arranged in the middle or on the lower portion of the tube. A vacuum envelope, an insulating body and a second permanent magnet action mechanism are arranged in the tube from top to bottom. The vacuum drop-out-type switch has the advantages that power restoration can be realized in case of transient faults, a separating brake can drop out in case of non-transient faults, accident points are easy to judge, and remote closing operation can be realized.

The invention provides an application method of a vacuum sputtering coated substrate clamping device. According to the vacuum sputtering coated substrate clamping device, at least two beams are arranged on one side of a vertical beam; each beam is set into a cross shape; side beams are arranged on the two sides of each cross-shaped beam; two double-faced lower elastic clamps are symmetrically arranged on the upper face of the middle beam; the clamping heads of double-faced upper elastic clamps correspond to the clamping heads of the double-faced lower elastic clamps; and a single-faced substrate is arranged between single-sided upper elastic clamps and single-faced lower elastic clamps. When vacuum sputtering coating is conducted, a conveying trolley is started after the upper side of the single-faced substrate is symmetrically clamped by the two single-faced upper elastic clamps in an auxiliary manner, the vertical beam, the beams and a double-faced substrate are driven by the conveying trolley to enter a vacuum sputtering coating box so that spluttering coating can be conducted on the substrates. Single-faced or double-faced coating shares one clamping device, and universality is high; product type replacement is convenient and rapid; the substrates are rapidly assembled and disassembled by hands in a tool-free manner; the diffraction problem is solved, and low-resistance and high-grade products can be produced; and the structure is simple, machining is easy, the manufacturing cost is low, and permanent use is achieved.

The invention discloses a partition type safe sampling device for biochemical detection of patients with high infectious diseases. The device comprises a base, wherein a first support is fixedly arranged at the top of the base, a second support is glidingly arranged at the top of the first support, a third support is glidingly arranged at the top of the second support, a motor is fixedly arrangedin the center of the inner side of the base, and a driving wheel is arranged at the top of the motor. The device has good safety protection performance and can be adjusted according to use requirements, and safety isolation and effective protection of medical workers and the patients are realized when physiological samples of the patients with high-risk infectious diseases with infection characteristics in modes of droplets, contact and the like are examined and extracted during hospital reception; compared with traditional disposable protective clothing, the device can be used permanently, and the working comfort of operators is greatly improved; and the partition type sampling device is simple in structure, wide in application occasion and range, low in cost, easy to popularize and applyand good in practicability.

The invention discloses an intelligentized multilayer filtering safety device and an intelligentized multilayer filtering safety method. The intelligentized multilayer filtering safety device comprises a request source check module, a uniform resource locator (URL) check module, a parameter value check module and an uploading file check module. The intelligentized multilayer filtering safety method comprises the following steps of: S1, sending a request received by a web system to a filter; S2, checking the source of the request in the filter, verifying whether the request is an internal link of the system or not, if so, performing the step S3, and otherwise, giving up processing; S3, performing URL check on the request, namely checking whether the request has sensitive characters or not, judging whether the URL is legal or not, if so, performing the step S4, and otherwise, giving up processing; S4, performing the check of parameter values on the request, namely checking whether the parameter values contain illegal contents or not, judging whether the parameter values are legal or not, if so, performing the step S5, and otherwise, giving up processing; and S5, checking files to be uploaded, judging whether the uploaded files are legal or not, and if so, responding to the request.

An electrostatic capacitor switch unit. The present invention provides a capacitive switch device and a control method thereof. The capacitive switch device comprises: a touch sensing unit (100) comprising a sensing electrode (110) and a transmitting electrode (120) disposed on a substrate (2); and a touch control module (200) disposed on the substrate (2) and configured to confirm a touch manipulation state of a operator based on a sensing signal from the touch sensing unit (100) and output a touch output signal, wherein the transmitting electrode (120) outputs a transmission signal in response to a transmission control signal from the touch control module (200), and the sensing electrode (110) detects signals in response to a sensing control signal from the touch control module (200) forbeing applied to the touch control module (200). The touch control module (200) enables the sensing electrode (110) and the transmitting electrode (120) according to a preset mode.