Directional trapping system and trapping method for birds

The invention relates to the technical field of trapping in ecological study of birds, in particular to a directional trapping system and trapping method for birds. The directional trapping system forthe birds comprises an image acquisition unit, an identifying and matching unit and a bird trapping device, wherein the image acquisition unit is used for acquiring a trap area image of a trap area position; the identifying and matching unit is used for identifying a to-be-identified bird image appearing in the trap area image, then matching the to-be-identified bird image with a target trap birdimage and giving a capture instruction when matching is successful; and the bird trapping device is arranged at the trap area position and is used for executing a capture action when receiving the capture instruction to capture the birds in a trap area. According to the directional trapping system and trapping method for the birds provided by the invention, the trapping accuracy and the trappingefficiency ...

Oil drilling well control dangerous case early warning system

The invention relates to the technical field of well control early warning, in particular to an oil drilling well control dangerous case early warning system which comprises a power supply unit, an acquisition unit, an analysis recording unit, an operation unit and a plurality of alarm units. The power supply unit is respectively connected with the analysis and recording unit and the plurality of alarm units, and the analysis and recording unit is respectively connected with the acquisition unit, the operation unit and the plurality of alarm units. The system is reasonable and compact in structure and convenient to use, dangerous cases in a well site are collected through the collection unit, early warning judgment of the dangerous cases is carried out through the analysis and recording unit, different control instructions are output to the alarm unit according to different dangerous cases, the alarm unit sends out sound and light corresponding to the dangerous cases for early warning, ...

Float switch is trailed to three proofings liquid level

... (B, ) the utility model relates to a liquid level floater switch technology field is a float switch is trailed to three proofings liquid level, it includes switch box, embedment electronic component, floating lever, magnetic induction piece and floater, there is embedment electronic component at the switch box internal fixation, embedment electronic component includes that right U type embedment shell body of opening responds to the tongue tube on, and respond to the tongue tube under and, U type embedment shell body is fixed in the left part of switch box. The utility model has the advantages of reasonable and compact structure, convenient to use, on respond to the tongue tube and respond to the tongue tube under with and pass through the casting glue embedment and fix in U type embedment shell body and form embedment electronic component, with floating lever, magnetic induction piece and floater aggregate erection on the switch box, can whole dismouting, convenient operation is swift, ...

Disassembling tool for crankshaft cover of engine cylinder body

The invention provides an engine cylinder crankshaft cover dismounting tool, relates to the technical field of automobile engines, and solves the technical problem that hands are easily injured due to the fact that a crankshaft cover is knocked and dismounted by a hammer. The dismounting tool comprises a positioning block, a guide column and a tension hammer, wherein the tension hammer slides back and forth along the guide column under the action of external force and intermittently acts on the guide column; the positioning block can be connected with the crankshaft cover in a matched mode and can act on the crankshaft cover to be disassembled in the same direction as the crankshaft cover. During use, the positioning block is embedded into the engine cylinder crankshaft cover, then the tension hammer is held to slide up and down along the guide column, the tension hammer acts on the upward lifting force of the guide column, the guide column drives the positioning block to generate an upward ...

Method and system for calculating urban land supply and demand matching performance

The invention provides a method and a system for calculating urban land supply and demand matching performance, which realize simulation of spatial distribution of various supply and demand in a city by modeling behaviors such as residence, employment, commuting, recreation and the like of residents, can systematically discover problems existing in an urban land scheme, and improve the urban land supply and demand matching performance. And meanwhile, information such as land parcel vectors, development intensity, land use attributes, road network layout and facility distribution in the planning scheme can be directly used for business development of the urban planning industry, and remarkable progress is achieved.

Road bridge collision avoidance protective device

The utility model relates to a road bridge collision avoidance protective device, including baffle, shelves pole and a plurality of elastic plate, one side that road bridge was kept away from to the baffle is arranged in to the shelves pole, and the middle part of shelves pole is straight rods, all bends and the perpendicular fixed connection of baffle in its both ends, the equal mobilizable coverof a plurality of elastic plates is on the shelves pole, all be provided with the spring between two adjacent elastic plates, the both sides of baffle all are provided with pressure relay, and the upper end of baffle is provided with the alarm, and two pressure relay all pass through the line connection with the alarm, two pressure relay's response end is all connected rather than the elastic plate that is close to through the spring, the upper end of baffle is provided with solar cell panel, and solar cell panel is connected with the battery, and the battery is connected with two pressure relay ...

Control method for automatic tapping of steel plate blank

The invention provides a control method for automatic tapping of a steel plate blank, and relates to the technical field of forged steel tapping control, and the control method comprises the following steps: step 1, blank feeding, step 2, blank judgment, step 3, movable beam adjustment, step 4, material receiving by a tapping machine, step 5, blank transfer, step 6, movable beam resetting and the like. In the third step, the blank easy to deform can be moved in the direction from the zero position to the lifting position through the movable beam, so that the downward deformation position of the blank is lifted to the plane where the fixed beam is located through the movable beam, and the situation that the blank is prone to deformation when the tapping machine conducts the material receiving process along the gap between the movable beam and the fixed beam in the fourth step is effectively prevented; when the steel rolling heating furnace deforms, the steel tapping machine abuts against ...

Phototherapy device

The invention discloses a phototherapy device, which is used for overcoming the defect of poor effect on the treatment of alopecia in the conventional equipment. The head phototherapy device comprises an upper helmet, a rear helmet and a head hoop, wherein the head hoop, the rear helmet and the upper helmet are assembled mutually to enclose a helmet body which is suitable to be worn by a patient; a visible light light-emitted diode (LED) lamp bank is arranged on the upper helmet and/or the rear helmet; the visible light LED lamp bank comprises a plurality of red light LED lamps capable of emitting red visible light; and heads of the patients are treated by the red visible light emitted from the visible light LED lamp bank. In the head phototherapy device and a neck phototherapy device, irradiation treatment is performed by a series connection mode of arranging the red light LED lamps and infrared LED lamps alternately at intervals and a mode of combining the red visible light emitted by ...

Stem cell exosome extraction and storage device

The invention discloses a stem cell exosome extraction and storage device which is characterized by comprising an end cover, a bearing main body and a transition layer, the bearing main body is a cylindrical bearing cup with a conical inner cavity at the bottom, a brace capable of separating the bearing main body is arranged between the cylinder and the bearing cup, the transition layer is fixedly arranged on the periphery of the cylinder of the bearing main body, and the transition layer is provided with a balloon cavity and is communicated to an external space; according to the storage device for extracting the stem cell exosomes through the ultra-high-speed centrifugation, the stem cell exosomes are precipitated in the bearing cup of the device after centrifugation is finished, the device is taken out, an upper-layer substance is moved out, the bearing cup is separated from a main body of the device through a pull strip, and then the stem cell exosomes can be taken out. The stem cell ...

Floater formula automatically regulated engine degasser

... (B, ) the utility model relates to an engine degasser technical field is a floater formula automatically regulated engine degasser, it includes slip mobile jib, sliding sleeve, degasification gas cylinder, motor, floating ball liquid level switch, mounting platform, integrated circuit control panel and power device, the cover is equipped with the sliding sleeve that can reciprocate on the slip mobile jib. The utility model has the advantages of reasonable and compact structure, convenient to use, can the real time sensor liquid level changing and sending the signal of telecommunication to the integrated circuit control panel through floating ball liquid level switch, the integrated circuit control panel be to the step motor give -out order after handling, and liquid level height adjustment can be trailed in real time to messenger's degasification gas cylinder, sensitivity is high, judges in time, avoids the erroneous judgement because of liquid level, and the practicality is strong, and ...

Heating furnace hot charging and hot delivery method based on slab transportation process temperature simulation

The embodiment of the invention provides a heating furnace hot charging and hot delivery method based on slab transportation process temperature simulation and a computer readable storage medium, and relates to the technical field of industrial furnaces, and the method comprises the steps that a slab transportation process temperature model is built; predicting the plate blank transportation process through the plate blank transportation process temperature model; a hot rolling plan is optimized according to the prediction result; and the plate blank is conveyed to a heating furnace for online rolling according to the optimized hot rolling plan. According to the method, the temperature of each plate blank in each link can be quickly predicted, and a real-time production scheduling strategy can be conveniently and accurately formulated by planning personnel, so that the hot charging rate and the hot charging temperature of the plate blank are improved, and the burnup and emission of a heating ...

Dust type pavement cutting machine

The utility model relates to a dust type pavement cutting machine, including bottom plate, pushing hands, motor, cut cutting piece and universal wheel, the output shaft of cutting piece and motor is cut to motor setting and universal wheel on the bottom plate, pushing hands and bottom plate pass through the leg joint, still include water tank, storage tank and box A, storage tank and box A all setup on the bottom plate, the water tank is connected with box A's top, be equipped with dust extraction in the box A, the outside of cutting cutting piece is equipped with the suction hood, and the suction hood is connected with the bottom plate, and the suction hood communicates through the dust absorption pipe with dust extraction, the suction hood divide into inner cover and dustcoat, the innercover with the dustcoat has an interval, the edge of inner cover and the edge connection of dustcoat, and dustcoat and dust extraction be through dust absorption pipe intercommunication to be coveredin, ...

Silicon steel sheet cold rolling device with rapid cooling and decontamination functions

The invention discloses a silicon steel sheet cold rolling device with a rapid cooling and decontaminating function, and belongs to the technical field of cold rolling mills. The silicon steel sheet cold rolling device comprises a feeding machine tool, a feeding rail is arranged on the feeding machine tool, an impurity removing spray gun is arranged on the feeding rail, the impurity removing spray gun is rotationally connected with the feeding rail, and the input end of the impurity removing spray gun is connected with an air pump through a guide pipe; a control oil cylinder set is arranged on the side, away from the feeding port, of the feeding rail, a lifting frame is arranged on the control oil cylinder set, a cold rolling motor is arranged on the lifting frame, a cold rolling roller set is arranged at the output end of the cold rolling motor and rotationally connected with the lifting frame, a plate conveying bed is arranged on the feeding machine tool, and a plurality of plate conveying ...

Apparatus and method for cleaning cell, tissue or biological material

The present invention provides an apparatus and a method for cleaning cell, tissue or biological material. The cleaning apparatus includes an outer sleeve and an inner sleeve arranged outside the outer sleeve. The out sleeve includes an opening end and a closed end, and the biological material is feed into the outer sleeve from the opening end. The inner sleeve is arranged in the outer sleeve with a collapsible and slidable mode, and includes a first port, a second port and a filtering element. The first port is used for receiving and discharging a cleaning fluid, the second port is a liquid flow path for communicating the inner of the inner sleeve and the inner of the outer sleeve, the filtering element is arranged in the second port to allow the cleaning liquid to pass but not the biological material. A closed space is formed between the filtering element and the closed end of the outer sleeve, the cleaning liquid may flow from the closed space through the filtering element, and the biological ...

Sawtooth wave position element value detecting circuit

The circuit senses bit value represented by sawtooth wave signal contained in doubled basic frequency 2*wob carried by wave signal in basic frequency fwob. The sensing circuit includes following parts: lowpass filter for receiving wave signal and generating filtering signal; a comparator for comparing wave signal with filtering signal to generate a comparison signal; a sensing unit for receiving the comparison signal, when the duty cycle of the comparison signal is larger than a preset value, first bit value is generated, and if the duty cycle of the comparison signal is smaller than a preset value, second bit value is generated.

Gas pipeline control system and remote control method thereof

The invention provides a gas pipeline control system and a remote control method thereof, and relates to the technical field of gas pipeline control, and the gas pipeline control system comprises a gas main pipeline, a branch pipeline, a heating boiler, a main control electric box and a remote control device, an electric sealing butterfly valve, an electric blind plate valve and a stop valve are sequentially arranged in the middle of the branch pipeline in the direction from the main gas pipeline to the heating boiler, the remote control device is electrically connected with the main control electric box through a signal transmission cable, and the remote control device is used for controlling a control signal of movement of the electric blind plate valve. The electric blind plate valve can achieve separation and conduction of the air entraining pipeline through the remote control device, on one hand, the safety distance between an operator and the electric blind plate valve can be guaranteed ...

Method and device for controlling thickness of hot-rolled strip steel, electronic equipment and medium

The invention discloses a control method and device for the thickness of hot-rolled strip steel, electronic equipment and a medium. The method comprises the steps that steel type information of the strip steel and the rolling speed of a finishing mill group on the strip steel are obtained; based on the steel grade information, the steel throwing speed of the finishing mill group on the tail section of the strip steel is determined; based on the rolling speed, the steel throwing speed and preset conversion time, the steel throwing speed of the finishing mill group is determined, and the rolling speed is reduced to the steel throwing speed based on the steel throwing speed; and when the tail section enters the finishing mill group, the tail section of the strip steel is subjected to steel throwing based on the steel throwing speed, so that the temperature of the tail section is within a preset temperature threshold value. The method can enable the strip steel tail thickness to be close to ...

Many gears controller that warm product of electricity was used

The utility model discloses a many gears controller that warm product of electricity was used, including the shell, be provided with the main control module, input detection module, data display module, output control module, the detection module that generates heat, power button in this shell, increase grade button and subtract a grade button, this input detection module, data display module, output control module and the detection module that generates heat all connect the main control module to and this output control module and the detection module that generates heat connect the device that generates heat through the extension line. Utilizing each module through the cooperation, having realized carrying out intelligent control to the device that generates heat, the user sets up the back to electronic switch, and monitoring is at any time generated heat the route moderate temperature and is changed, can in time detect states such as overheated, local pyrexia to in time export through ...

Three-protection liquid level-tracking floating switch

The invention relates to the technical field of a liquid level floating switch, and relates to a three-protection liquid level-tracking floating switch. The three-protection liquid level-tracking floating switch comprises a switch box, an encapsulation electronic module, a floating rod, a magnetic induction piece and a floating ball, wherein the encapsulation electronic module is fixedly arranged in the switch box and comprises an U-shaped encapsulation outer shell with an opening facing right, an upper induction reed switch and a lower induction reed switch, and the U-shaped encapsulation outer shell is fixed in the left part of the switch box. The three-protection liquid level-tracking floating switch is reasonable and compact in structure and is convenient to use; the upper induction reed switch and the lower induction reed switch are encapsulated and fixed in the U-shaped encapsulation outer shell by a pouring sealant to form the encapsulation electronic module, the encapsulation electronic ...

Automatic coal unloading device for coal storage in coal bunker

The invention relates to the technical field of coal distribution, in particular to an automatic coal unloading device for coal storage in a coal bunker, which comprises a fixed frame, a turning plate rotationally arranged on the inner wall of the fixed frame, a support frame arranged on the end surface of the fixed frame, a first connecting rod arranged on the outer wall of the support frame, a coal conveying pipeline arranged at the end part of the fixed frame, and a spiral conveyer arranged in the coal conveying pipeline, the transfer assembly comprises a disc arranged on the outer wall of the first connecting rod and a first isolation plate arranged in the disc; the buffering assembly comprises a coal storage bin arranged in the fixing frame, a fixing block arranged outside the coal storage bin, an extrusion rod arranged on the end face of the coal storage bin, an extrusion block arranged at the other end of the extrusion rod and a third elastic piece arranged on the outer wall of the ...

Power line reconstruction method based on BEV view assistance

The invention relates to the technical field of computer vision, in particular to a power line reconstruction method based on BEV view assistance. Comprising the steps of ground point removal, noise point screening, calculation of the number of power lines in the vertical direction, coarse reconstruction of the power lines and fine reconstruction of the power lines. According to the method, a BEV view is introduced as an assistance, ground points and noise points are removed from power line 3D point cloud data, the accurate number of a plurality of power lines which coincide into one line in the vertical direction is accurately calculated, then rough reconstruction and fine reconstruction are carried out in sequence, and finally clear and complete power line point clouds are obtained. The condition of the power line can be better judged, more efficient and more accurate power transmission line inspection operation is realized, the labor cost is reduced, and more reliable distribution line ...

Iron road bridge acoustic baffle for roof beam

The utility model relates to an iron road bridge acoustic baffle for roof beam, including braced frame and acoustic baffle, both sides in the braced frame all are provided with the slot, the notch mutual disposition of two slots, and pack into respectively in two slots in the both sides of two acoustic baffles, braced frame's upper end is provided with the weather shield, and braced frame and weather shield detachable are connected, and the weather shield is the herringbone structure, the last supersonic generator that is provided with of braced frame, supersonic generator and power -on crossthe line connection, and supersonic generator sends the ultrasonic wave to acoustic baffle department, the last ionic wind machine that is provided with of braced frame, the ionic wind machine is connected with the power through pressure relay, and the ionic wind machine is towards the acoustic baffle, pressure relay fixes in one side of braced frame, and the acoustic baffle is touched on its response ...

Floating-ball-type automatic-adjusting electric degasifier

The invention relates to the technical field of electric degasifiers, in particular to a floating-ball-type automatic-adjusting electric degasifier which comprises a sliding main rod, a sliding sleeve, a degasifying gas collecting barrel, a motor, a floating ball liquid level switch, a mounting platform, an integrated circuit control board and a power device. The sliding sleeve capable of sliding up and down is mounted on the sliding main rod in a sleeved manner. The floating-ball-type automatic-adjusting electric degasifier is reasonable and compact in structure and convenient to use; liquid level change can be sensed in realtime through the floating ball liquid level switch, electric signals can be sent to the integrated circuit control board, and the integrated circuit control board sends an instruction to the stepping motor after treatment to enable the degasifying gas collecting barrel to track liquid level in realtime for adjusting; the degasifier is high in sensitivity, timely in ...

Road/bridge height limiting frame

The utility model relates to a road/bridge height limiting frame erects on the road, including two bases, telescoping device and crossbeams, the road both sides is arranged respectively in to two bases, and the upper end of two bases all is provided with the telescoping device, and the lower part of every telescoping device is all rather than the base fixed connection who locates, road top is arranged in to the crossbeam, the both ends of crossbeam respectively with the upper portion fixed connection of two telescoping devices, the upper end of crossbeam is provided with shines the laser generator of laser to the road, and the lower extreme of crossbeam is provided with infrared inductive switch, and infrared inductive switch level arranges, laser generator and infrared inductive switch all with crossbeam fixed connection, be provided with the steel sheet on the road, the lower extreme of steel sheet is provided with pressure relay, and pressure relay inlays in the road. Compared withthe ...

Method for chemically synthesizing lactenin from glycerine

The method for synthesizing Rutening (3-hydroxy-propionaldehyde) includes the following steps: converting glycerine into acrolein and water in the presence of sulfate catalyst (for example potassium sulfate or magnesium sulfate), then making the acrolein and water produce reaction in the presence of acid catalyst to produce said invented product rutening.

Road and bridge guardrail

The utility model relates to a road and bridge guardrail, including first pillar and second pillar, be provided with a plurality of wire rope between first pillar and the second pillar, first pillar and clamp plate fixed connection, a plurality of wire rope's the other end and second pillar fixed connection are passed to a plurality of wire rope's one end, be provided with pressure relay between clamp plate and the first pillar, the one end that first pillar was kept away from to the clamp plate is provided with electric jack, electric jack's output shaft and clamp plate fixed connection, andelectric jack keeps away from the one end of clamp plate and is connected with the dead lever, the line connection is crossed to pressure relay's one end and power -on, and the other end passes through the line connection with electric jack, be provided with temperature relay on the dead lever, temperature relay's one end and power are connected, and the other end passes through the line connection ...

Anti-blocking device for raw coal bunker

The invention discloses an anti-blocking device for a raw coal bunker, and relates to the technical field of raw coal bunkers, the anti-blocking device comprises: a rotating mechanism comprising a transmission assembly, a main plate, a first gear and a first turntable; the stirring mechanism comprises a T-shaped frame, an unfolding assembly, a first connecting rod, a second connecting rod and a third connecting rod. Through rotation of the rotating mechanism, blockage of coal materials is effectively prevented during feeding of the raw coal bunker, when the lower portion of the coal bunker is blocked, the stirring mechanism is driven by the rotating mechanism to be unfolded, the coal materials are stirred, and the overall using effect is improved.

Road roller with self -cleaning muller function

The utility model relates to a road roller field specifically is a road roller with self -cleaning muller function, including driver's cabin, wheel, road roller main part, grind wheel frame and muller, the driver's cabin setting is in the road roller main part, the muller setting is in grinding wheel frame, the wheel sets up respectively at the both ends of road roller main part with grinding wheel frame, is equipped with two scraper blades on grinding wheel frame, the one end of scraper blade can be dismantled with the one side of grinding wheel frame and be connected, the other end is crossed the muller and can be dismantled with stone roller wheel frame's opposite side and be connected two scraper blade interval parallel arrangement, be equipped with cleaning sheet between two scraper blades, the opposite side of two scraper blades is equipped with the slide rail, and the cleaning sheet both ends are equipped with the gyro wheel, and cleaning sheet and two scraper blades pass through ...

A transition interface arrangement that is used for storage tank vacuum to detect and bleed

The utility model discloses a transition interface arrangement that is used for storage tank vacuum to detect and bleed, including intake pipe (1), on -off valve, outlet duct (3) and flange (4), the on -off valve is connected in intake pipe (1), outlet duct (3) is connected to the on -off valve, outlet duct (3) tip sets up flange (4). The utility model discloses a setting up the on -off valve between intake pipe and outlet duct, setting up flange at the outlet duct lower extreme, when detecting storage tank vacuum and bleeding, close the on -off valve earlier and connect this device on the storage tank, then connect check out test set or air -extractor, in the time of need detecting or bleed, just open the on -off valve, the working process gas tightness can well be guaranteed. The utility model discloses simple structure, convenient to use, can guarantee the storage tank detect with the gas tightness of the during operation of bleeding, also very convenient simple to jointing equipment ...

Key formula controller that warm product of electricity was used

The utility model discloses a key formula controller that warm product of electricity was used, the rocker switch structure comprises a housing, be equipped with the main control module in this shell, input detection module, high, normal, basic gear display module, output control module, a detection module and a button generate heat, this input detection module, high, normal, basic gear display module, the output control module and the detection module that generates heat all connect the main control module, should press key -type connection input detection module, high, normal, basic gear display module and button all expose in the shell, and, this output control module and the detection module that generates heat connect the device that generates heat through the extension line. Utilizing each module through the cooperation, having realized carrying out a key formula intelligent control to the device that generates heat, the user sets up the back to electronic switch, and monitoring is ...

Short-circuit current control rule extraction method based on historical calculation result

The invention discloses a short-circuit current control rule extraction method based on a historical calculation result, and the method comprises the following steps: obtaining a preprocessed short-circuit current historical calculation result, carrying out the clustering through a Gaussian mixture model, and obtaining a Gaussian mixture clustering result; according to a Gaussian hybrid clustering result, based on a preset interval threshold value, a set Sbus is separated, and then a generator set set Sgen and a line set Sline are obtained through screening; and adopting different operation modes to calculate the short-circuit current of all buses in the three sets so as to obtain a generator set of the short-circuit current and a wiring control rule. Through massive historical operation mode data and a short-circuit current historical calculation result, possible effective candidate measures are firstly screened out, on this basis, a physical mechanism is fused, effective short-circuit ...

Apparatus and method for cleaning cell, tissue or biological material

Positioning jig

A positioning jig comprises a shielding piece and a driving piece. The shielding piece comprises a sliding part, a guiding part and a shielding part, the sliding part is connected to the function module in a sliding mode, and the sliding part and the shielding part extend from the two opposite ends of the guiding part respectively. The sliding part comprises a guide groove. The driving part is movably arranged on the functional module corresponding to the shielding part. The driving piece comprises a base part, a driving part and a column part. The driving part contacts with the guiding part, and the column part protrudes out of the base part and penetrates through the guiding groove. When the functional module is positioned on the circuit board, the base part of the driving part is pushed by the electronic element, and the driving part pushes the guide part to enable the shielding part to slide, so that the shielding part shields the lock hole of the circuit board. Therefore, once the ...

Anti-SARS coronavirus type 2 spike protein antibody

The present disclosure provides an antibody or an antigen binding fragment thereof that specifically recognizes the SARS-CoV-2S protein. The antibodies, or antigen-binding fragments thereof, described herein can be formulated as pharmaceutical compositions and/or used in a variety of diagnostic, therapeutic, or molecular biological applications.

Radiationless electricity warms up quilt

The utility model discloses a radiationless electricity warms up quilt, including the quilt body, shielding layer and the line that generates heat, this is provided with on by the body prevents slow -witted socket, this shielding layer sets up in by internal, the lateral surface of shielding layer is lived by body parcel, the line that should generate heat sets up in the shielding layer, the shielding layer wraps up the line that firmly generates heat, and the line that generates heat is circuitous to be arranged in the shielding layer, generate heat the line including interior isolation layer, interior heart yearn, outer heart yearn and exodermis, should be NTC thermistor material by interior isolation layer, should set up in interior isolation layer by interior heart yearn, connect through the one end of heart yearn in utilizing and the one end of outer heart yearn, and the outer heart yearn of cooperation is the cross stranding state with interior heart yearn, use, can offset magnetic ...

Breeding and domestication method suitable for greenhouse fruit and vegetable pollination of northeast black bees and application of breeding and domestication method

The invention relates to the technical field of pollination entomophilous breeding, in particular to a Northeast black bee breeding and domestication method suitable for greenhouse fruit and vegetable pollination and application of Northeast black bee pollination to promotion of yield increase of greenhouse fruits and vegetables. The breeding and domesticating method comprises the following steps: selecting a greenhouse: selecting a standard double-layer greenhouse; selecting honey harvesting crops: entomophilous flower plants; selecting a domestication variety: 1 box of standard northeast black bees; breeding and domesticating: cultivating entomophilous plants in a greenhouse, collecting honey, pollinating and breeding Northeast black bees; the humidity is controlled to be 60-70%, the room temperature in the daytime is controlled to be 23-26 DEG C, and the room temperature at night is controlled to be 8-12 DEG C. According to the method, the northeast black bees are bred and domesticated ...

Full panel key type microphone

The invention relates to a full panel key-pressing microphone, including a case, a fixture arranged in the case and a cover body arranged on the fixture. A plurality of shrapnels are formed on the fixture, wherein the shrapnels contact on the cover body, to provide excellent elastic restoring force for the cover body. The shrapnels are formed on the fixture, thereby reducing parts and reducing thickness of the integral microphone.

Self-locking module and rotary self-locking type anti-falling protective cover

The invention belongs to the technical field of science popularization display, and particularly relates to a self-locking module and a rotary self-locking type anti-falling protective cover. The self-locking module comprises a static part, a movable part, an upper component and a lower component, wherein the upper component is located above a mounting table top and comprises a tenon and a sliding table; when the movable piece horizontally moves on the mounting table surface to enable the tenon to be clamped into the sliding table, the movable piece and the mounting table surface generate action constraint in the vertical direction; the lower component is located below the mounting table top and comprises a sliding bolt, and a component hole is formed in the movable component. When the tenon is horizontally clamped into the sliding table, the sliding bolt can move vertically and upwards so as to be matched with a component hole in an inserted mode, and at the moment, the moving piece and ...

Preparation method of non-oriented silicon steel hot-rolled strip steel and strip steel

The invention relates to a preparation method of non-oriented silicon steel hot-rolled strip steel and the strip steel, belongs to the technical field of hot rolling production, and aims to meet the rolling stability of high-silicon thin specification under the condition of ensuring low-temperature short-time heating by controlling each process parameter in a heating stage and avoid deterioration of magnetic performance of subsequent finished products caused by too high tapping temperature. Meanwhile, the rolling reduction of the rough rolling procedure is controlled, the process temperature drop is reduced, the strip threading speed is limited, the finish rolling stability is improved, hot rolled steel strips can be pressed to the target thickness, meanwhile, batch output is stable, and the problems that in the prior art, when high-silicon-content and thin-gauge silicon steel is produced, waste steel occurs, and the number of unqualified products is large are solved.

Composite type base plate transportation box

Composite type base plate transportation box

A combined transport case is composed of two first side plates with extended blocks on two vertical sides, two second side plates with locating holes on other two vertical sides for matching with thesaid extended blocks to combine them together, a top cover plate, a bottom plate, and fixing screw bolts for combining both side plate together. Its advantages are low cost, and easy combining and detaching.

Feeding device for pouring machine

The utility model relates to a feeding device for pouring machine, including heat conduction oil barrels, the conveying pipeline, install crack pouring material bucket and the holding tank in heat conduction oil barrels and install the first pump and stirring subassembly in the crack pouring material bucket, first pump drives the stirring subassembly and rotates, the holding tank feeds through with the inlet connection of first pump, the one end and the first delivery side of pump end of conveying pipeline are connected and the intercommunication, the other end of conveying pipeline has the opening and stretches out heat conduction oil barrels, still include the filter, the second pump, circulating oil pipe and insulating tube, the filter install in the upper shed of holding tank department and with the bottom surface parallel and level of crack pouring material bucket, the bottom of stirring subassembly can be inconsistent with the filter, the circulating oil pipe cover is establishedon ...