450results about How to "Overcoming technical deficiencies" patented technology

The invention relates to an on-line monitoring method for a heat rate of a steam turbine on the basis of a soft measurement technology. According to the method, an established expert performance knowledge base and a performance prediction model of a steam turbine regenerative system are used for calibrating data collected by measure point sensors on the operation site of the steam turbine regenerative system, and parameter data not collected on the operation site of the steam turbine regenerative system are predicted, so main steam flow can be calculated by utilizing the output power of the steam turbine, the on-line monitoring of the heat rate of the steam turbine regenerative system can be completed, and therefore accurate and reliable on-line monitoring results of the heat rate of a generator set can be obtained. The on-line monitoring method for the heat rate of the steam turbine on the basis of the soft measurement technology omits traditional condensed water flow measurement, a soft measurement method of the output power of the steam turbine is adopted to achieve on-line monitoring of the heat rate, and meanwhile the functions of calibration and prediction on field measured data are achieved.

The invention discloses a method for synthesizing a modified sodium alginate flocculating agent and an application of the flocculating agent. The method comprises the following steps of: reacting partially oxidized sodium alginate and a chelating agent thiosemicarbazide with a functional group in an aqueous solution to obtain a biodegradable natural high polymer flocculating agent. The method mainly comprises two reaction processes: (1) oxidizing the sodium alginate by using sodium periodate, and preparing the partially oxidized sodium alginate with a dialdehyde structure, wherein the oxidation degree is 68.2 percent; and (2) dissolving the oxidized sodium alginate in a phosphate buffer solution with the pH of 7.0 to prepare a uniform solution, adding the thiosemicarbazide to the uniform solution, reacting for 4 hours to generate a Schiff base, and adding NaBH4 to generate stable amine. The method is simple and easily controllable in process, low in cost and easy to popularize and apply, and raw materials are easily obtained. Nitrogen and sulfur elements are introduced into sodium alginate subjected to chemical modification, and the adsorption capacity and removal rate of the sodium alginate flocculating agent on heavy metal ions in sewage are greatly improved. The flocculating agent is biodegradable, and secondary pollutants are avoided.

The invention discloses a four-degree of freedom parallel-series hybrid oscillating screen, which comprises a base, a crank block mechanism, a support, an intermediate platform, a Y left branch chain, a Y right branch chain, an X front branch chain, an X rear branch chain and a screen box, wherein the crank block mechanism is arranged above the base; the bottom part of the support is arranged on the crank block mechanism; the upper end of the support is fixedly connected with the intermediate platform; the screen box is arranged above the intermediate platform; the Y right branch chain, the Xfront branch chain, the Y left branch chain and the X rear branch chain are connected between the screen box and the intermediate platform; and the screen box, the intermediate platform and the four branch chains which are connected with the screen box and the intermediate platform form a parallel mechanism with a 4-spherical pair-prismatic pair-revolute pair (4SPR) structure. The oscillating mechanism disclosed by the invention is a parallel-series hybrid mechanism 4-spherical pair-prismatic pair-revolute pair-parallel (4SPR-P), which is capable of realizing two-shift and two-rotation oscillation of four degrees of freedom on the screen box; the oscillating amplitude, the frequency, the dip angle and the oscillating degree of freedom can be regulated. The four-degree of freedom parallel-series hybrid oscillating screen has strong adaptability on different screened materials and can be used for material grading in industry of energy, metallurgy, building material, chemical engineering, agriculture and grain processing.

The embodiment of the invention discloses an image character identification model generation and vertical column character image identification method and device. The image character identification model generation method comprises the steps that a rotation line character training sample is generated, wherein the rotation line character training sample includes a rotation line character image and an expected character identification result corresponding to the rotation line character image, and each character unit in the rotation line character image is different from each character unit in a standard line character image for 90 degrees; and a set neural network is trained by using the rotation line character training sample so that an image character identification model is generated. According to the technical scheme, the technical defects that the existing line character image is difficult to be directly utilized to train a vertical column character image identification can be overcome so that efficient identification of the vertical column characters can be realized.

The invention relates to a preparation method for a self-adhesive modified asphalt waterproof coiled material with cement reactivity. According to the technical scheme, the method comprises the following steps of coating on one or two sides of a base reinforcement layer with modified asphalt pressure sensitive self-adhesive glue with cement reactivity to form (a) modified asphalt pressure sensitive self-adhesive glue layer(s) by using an oil coating roller pair, and wrapping the modified asphalt pressure sensitive self-adhesive glue layer(s) with (an) anti-sticking separation film(s) to prepare a self-adhesive modified asphalt waterproof coiled material product with cement reactivity. The method has the beneficial effects that the modified asphalt pressure sensitive self-adhesive glue is used, so that the coiled material is endowed with a cement mortar adhesion characteristic, and has a thermal creep characteristic, the problem that an adhered surface is polluted by dust and the like on a construction site is effectively solved, and the range of construction application temperature of the coiled material is widened; the modified asphalt pressure sensitive self-adhesive glue is permanently and organically combined with concrete of a structural layer, and the hidden danger of water mixing is avoided; the reliability of a waterproof layer is improved, and unique self-healing capability for slight construction damage is achieved.

The invention discloses a YIG (Yttrium Iron Garnet) band rejection filter based on a planar resonant coupling structure and a fabrication method of the YIG band rejection filter. The filter comprises a YIG band rejection filter and a driver, wherein the YIG band rejection filter comprises a resonant cavity, a planar resonant coupling structure, a permanent-magnet biasing magnetic path and an excitation coil, the planar resonant coupling structure is arranged in the resonant cavity, and the permanent-magnet biasing magnetic path provides a stable magnetic field for the resonant cavity. With the adoption of a mode of arranging a YIG thin film on a front surface of GGG (Gadolinium gallium garnet) glass and photoetching a coplanar waveguide circuit on the YIG thin film by sputtering, the planar resonant coupling structure is formed, a traditional spherical three-dimensional coupling structured YIG band rejection resonant coupling structure is substituted, and the technical defect existing in the traditional structure is also overcome. In the processing technology, The YIG thin film is first photoetched to a required shape according to a product shape needed to fabricate, and then the GGG glass is cut along appearance; and the defect of edge breakage or damage of the YIG thin film easily caused by directly cutting the YIG thin film based on a GGG substrate is overcome.

The invention discloses a magnetic particle chemiluminescence immune assay detection kit for a carcino-embryonic antigen and a detection method of the detection kit, belonging to the technical field of kits. The magnetic particle chemiluminescence immune assay detection kit for the carcino-embryonic antigen comprises a carcino-embryonic antigen calibration material, a magnetic bead covered by an anti-carcino-embryonic antigen antibody, an enzyme labeled monoclonal antibody, an enzyme acted chemiluminiscence substrate and a concentrated washing solution. The detection kit disclosed by the invention utilizes the advantages of magnetic separation and chemiluminiscence detection methods so that the detection process is simple, the operation is easy and the automation is convenient; meanwhile, the detection kit further has the properties of high sensitivity, good specificity, low detection limit, good stability and the like and the requirements of clinic auxiliary diagnosis or detection of various cancers are met.

The invention provides an automatic mounting system comprising a feeding mechanism, a workpiece taking and mounting mechanism, a sucking disc driving mechanism, an image collector, and a controller. The feeding mechanism comprises a feeding platform; the feeding platform is provided with stations; and the stations are used for placing workpieces. The workpiece taking and mounting mechanism comprises a sucking disc and a negative pressure system, wherein the sucking disc is used for getting/putting the workpieces, the sucking disc is provided with a plurality of dot matrix holes, and the negative pressure system is connected with the sucking disc and controls the sucking disc to absorb/drop the workpieces. The sucking disc driving mechanism is used for driving the sucking disc to move. The image collector is used for collecting workpiece images. The controller is used for correcting the workpiece images, and according to the deviation value and deviation angle between the workpiece images obtained after correction and a target position image, controlling the sucking disc driving mechanism to move and rotate until the workpiece is moved to the target position, and then, controlling the sucking disc to move up and down, and thus mounting of the workpiece is realized. The automatic mounting system can carry out automatic mounting on flexible workpieces or air-permeable workpieces which are irregular in shapes; and the automatic mounting system has the advantages of high mounting precision and high mounting efficiency.

The invention provides a disc cam type packaged food metering device and belongs to the field of composite leisure food packaging metering techniques. The disc cam type packaged food metering device comprises a rack, a cylindrical turntable composite structure, a disc cam and a stirring paddle. The cylindrical turntable composite structure comprises a cylindrical turntable, 6-18 fixed metering cups, 6-18 sliding blocks and 6-18 bearings, the cylindrical turntable comprises a bottom and 6-18 bottom slots, a fixed metering cup slot is formed in the middle of each fixed metering cup, the bottom slots and the fixed metering cup slots are stacked in an upper and lower mode to form 6-18 sliding block slots, and 6-18 movable metering cups are formed between inwards concave semicircles of the sliding blocks and outwards concave semicircles of the sliding block slots; the disc cam comprises a cam groove and is arranged below the fixed metering cups; each bearing comprises a bearing head, the bearing heads are arranged in the cam groove and can rotate along the cam groove, and the sliding blocks can slide in the sliding block slots forwards or backwards; the stirring paddle is horizontally arranged. The disc cam type packaged food metering device has the advantages that metering is precise, the automated production degree is high, production efficiency is high, and materials are easy to put in.

The invention discloses a rapidly convergent precise point positioning method. First preprocessing is performed on observation data of global navigation satellites, then in combination with an observation equation of an original carrier phase observed value, an observation equation of a code phase half combination observed value and an observation equation of a geometry-free combination observed value, an improved observation equation of precise point positioning is built, and Kalman filtering is adopted to estimate parameters in the improved observation equation of precise point positioning, receiver location information and tropospheric delay and ionospheric delay information are obtained, thereby realizing GNSS rapid point precise positioning. Compared with the prior art, the rapidly convergent precise point positioning method provided by the invention can better reduce influence of observation noise and orbit errors on a filtering convergence rate and positioning precision, and uses a characteristic of a slow change between tropospheric delay and ionospheric delay epochs as constraint condition, thereby improving performance of precise point positioning calculation.

The invention relates to a stink fingerprint spectrum based stink pollution source tracing method. The method comprises the following steps: A, determining a suspected pollution source; B, discharging, sampling, analyzing the pollution source; C, sampling and analyzing an environment stink gas; D, screening a stink pollutant; E, constructing a pollution source and environment stink fingerprint spectrum; F, calculating the similarity through a source tracing mode; and G, identifying the pollution source according to the similarity. The stink fingerprint spectrum is constructed through the fingerprint spectrum technology and the odor threshold of a stink substance, the similarity coefficient of the pollution source and environment stink fingerprint spectrum is calculated by using an includedangle cosine method, so that the possible source of the stink pollution is judged, the source of the stink pollution is rapidly and accurately identified, the difficult problem of tracing the sourceof the stink pollution is solved, the technical defect of complaint management of the stink pollution is overcome, and the effectiveness and the authority in supervision and law enforcement of the stink pollution of the environmental management department are improved.

The invention relates to a novel method for preparing a nano spherical polyelectrolyte brush by utilizing a thermal initiator and application thereof. Firstly, styrene and other substances are used as a monomer, and are subjected to oxidation reduction emulsion polymerization at normal temperature to obtain a micro milk globule of polystyrene(PS) with the grain diameter of between 50 and 90 millimeters; secondly, at the final stage of the polyreaction, an azo thermal initiator is added, because a C=C double bond of the end group of the thermal initiator and a surface residual monomer of the micro milk globule are subjected to copolymerization, the thermal initiator is fixed on the surface of the micro milk globule through the covalent bond; and finally, an electrolyte monomer such as acrylic acid, sodium styrene sulfonate and the like is added to initiate the polymerization at certain temperature, and the nano spherical polyelectrolyte brush with the grain diameter of between 100 and 200 millimeters is prepared. The polyelectrolyte brush can be widely applied to fields such as the removal of harmful metallic ions in water, the recovery of precious metal ions, the preparation of nano metal composite catalysts and biological enzyme reactor, the medical diagnosis.

The invention discloses a double-knife continuous chopping machine which comprises a base, a power system, a primary transmission system, an anvil plate transmission device, an executing system, an anvil plate device and a safety protective cover. The power system, the executing system, the anvil plate device and the safety protective cover are all fixedly mounted on the base, and the safety protective cover is arranged on the anvil plate device in a sleeving mode; the power system is connected with the executing system through the primary transmission device to drive a left chopping knife and a right chopping knife to move up and down in a reciprocating mode; and the power system is connected with the anvil plate device through the anvil plate transmission device to drive an anvil plate to rotate. According to the double-knife continuous chopping machine, the two chopping knives can alternatively carry out continuous and reciprocating chopping operation, so that chopping efficiency and stuffing preparing quality are greatly improved, and the phenomena of loss of various nutrient ingredients and stuffing foam splashing can be effectively avoided. Besides, the double-knife continuous chopping machine further can regulate the chopping efficiency of the chopping machine and the stroke of chopping knife motion, is simple in regulating mode, and has the characteristics of high adaptation, simple regulation and convenient operation.

The invention discloses an intelligent silkworm cocoon sorting method, which comprises the step of sorting silkworm cocoons by using three intelligent silkworm cocoon sorting machines, and the sorting method comprises the following steps that firstly a batch of bonded silkworm cocoons falling from a silkworm cocoon funnel are pushed away through a rotating flywheel, and the silkworm cocoons are paved on a push rod; silkworm cocoons falling on the push rod are automatically scattered under the action of the shape of the push rod, a chain conveying chain, a belt conveying belt and flexible blades of the flywheel and rotate back and forth, and then complete information of all surfaces of each silkworm cocoon is collected and judged through a silkworm cocoon image collector; and the silkworm cocoons judged to have defects are sucked by a suction device and then placed into an unqualified product box on one side, the defective silkworm cocoons which are not sucked rapidly are blown up by a pneumatic blowing nozzle and fall into the unqualified product box far away, and the silkworm cocoons judged to have no defects obliquely and downwards move to the tail end along the conveying belt and fall into a qualified product box. According to the intelligent silkworm cocoon sorting method provided by the invention, the problems that an existing silkworm cocoon sorting machine is poor in detection reliability and silkworm cocoon sorting reliability can be solved.

The invention provides a face analysis device and method. The face analysis method comprises that a to-be-detected sample is input to a residual error network module; the trained residual error network module is used to process the to-be-detected sample, the residual error network module comprises residual error blocks which are arranged from the input to the output direction and combined sequentially, and output of the Nth predetermined residual error block among the residual blocks combined sequentially is sent to a residual error deconvolution network module; and the trained residual errordeconvolution network module is used to process the output of the Nth residual error block to obtain a classifcaitn graph, the residual error deconvolution network module comprises residual error deconvolution blocks combined sequentially, and the residual error deconvolution blocks correspond to the first to Nth residual error blocks respectively. Via the face analysis method, the face analysis performance can be improved, and the model size in the method is reduced greatly.

The invention discloses a combined rehabilitation training device. The device comprises a seat frame, an upper limb rehabilitation training device, a lower limb rehabilitation training device, a back flap massage device and the like. The upper limb rehabilitation training device which is located above the seat frame is used for conducting rehabilitation training on human arms, and the lower limb rehabilitation training device can achieve passive or active rehabilitation training on human legs; the back flap massage device is arranged behind the seat frame and provided with a regulating mechanism, and flat massage on different parts of human backs can be achieved. According to the combined rehabilitation training device, the rehabilitation training requirements on different parts such as human arms, legs, feet and backs can be achieved, the device has the advantages of reliable work, simple and compact structure and design, and easy and convenient operation, and the training requirements of patients in different rehabilitation stages can be met.

The invention relates to a time service method and a time service device for distributed data acquisition units for microseismic monitoring technology. An underground monitoring host is arranged underground; a time server is arranged in the underground monitoring host, is connected with the data acquisition units through signals and sync cords and provides time service for each data acquisition unit to make the data acquisition units synchronously perform monitoring; meanwhile, the time server also makes the data acquisition units have the same sampling frequency. The time server also can provide time service for underground substations connected with the plurality of data acquisition units, so that all data acquisition units also can perform monitoring synchronously. The time service method is simple, overcomes the defect that the GPS time service system is complicated and difficult to operate, is flexible and effective to use, and has high practical value and wide application prospect.