142results about How to "Clearly understand the advantages" patented technology

The invention relates to a preparation method of an ultrahigh-purity aluminum target. The preparation method comprises the following steps: (1) the surface of an ultrahigh-purity aluminum ingot with a purity of higher than 99.999 wt% is milled to remove an oxide layer thereof; (2) the ingot is heated to 230-400 DEG C; (3) the hot rolling of 10-20 passes is performed for the heated ingot; the single-pass reduction is controlled within 20-60 mm; and the final rolling temperature in final pass is controlled below 350 DEG C; (4) the annealing treatment with a temperature of 200-300 DEG C and an insulation time of 1-2 h is performed for a hot-rolled aluminum plate; and (5) the plate is straightened for milling to obtain the ultrahigh-purity aluminum target with average grains of 80-150 microns. The preparation method can prepare the target with high purity, fine and uniform grains and consistent texture orientation to satisfy the use requirements of PVD; and meanwhile, the preparation method is simple in process, easy to operate and convenient for large-scale industrial production, effectively reduces the energy consumption, and reduces the cost.

The invention relates to a rock-socketed single pile foundation of offshore wind turbines in batholith seabed and a construction method thereof. The rock-socketed single pile foundation comprises a steel pipe pile inserted in a moderately weathered batholith layer. An annular groove located at the periphery on the lower end portion of the steel pipe pile is formed in the batholith. An inner casing is nested within the lower end of the steel pipe pile. A gap is reserved between the inner casing and the inner wall of the steel pipe pile. The inside of the annular groove and the gap between the inner casing and the inner wall of the steel pipe pile are both filled with a high-strength grout having initial setting time of no less than 8 h. The rock-socketed single pile foundation of offshore wind turbines in batholith seabed in the invention is stable and reliable, ensures that the single pile foundation can be tightly bonded with the surrounding batholith, and reliably embedded in the moderately weathered batholith layer. The impact of a large boring diameter and a borehole perpendicularity error on the gradient of the single pile foundation and the problem of local stress concentration of the rock-socketed section of the steel pipe pile due to unevenness of the bored rock surface are reduced. Moreover, the cubic quantity of backfill concrete for the rock-socketed section can be lowered. The critical technical problem of use of the single pile foundation in the batholith seabed is effectively solved.

The invention relates to a single-cylinder rotating type bean sprout culturing device and method. The single-cylinder rotating type bean sprout culturing device comprises a transparent drum, wherein transparent partition boards for dividing an inner cavity of the drum into multiple regions are arranged in the drum, a rotating shaft for driving the drum to rotate penetrates into the middle of the drum, a sleeve sleeving the periphery of the rotating shaft is arranged in the drum, an annular water inlet cavity is formed between the sleeve and the rotating shaft, and jetting holes corresponding to each region of the inner cavity of the drum are formed in the periphery of the sleeve; an arc-shaped lampshade capable of being lifted is arranged above the drum, and an LED plant growth lamp is arranged on the lampshade. The single-cylinder rotating type bean sprout culturing device is novel in structure, reasonable in design, convenient to use and small in manpower dependency, occupies a little space and is capable of providing a stable production environment to bean sprouts, the culturing time can be substantially shortened, and the yield of the bean sprout can be guaranteed.

The invention relates to a rock-socketed single pile foundation through offshore wind power and a construction method of the rock-socketed single pile foundation. The rock-socketed single pile foundation comprises a steel pipe single pile which is positioned in the center, wherein the lower end of the steel pipe single pile is inserted into a seabed, and the upper end of the steel pipe single pile is positioned above the sea level; a fan tower cylinder is mounted at the upper end of the steel pipe single pile, and a plurality of steel pipe grouting piles which are fixedly connected to the steel pipe single pile are arranged at intervals at the internal circumambient part or the periphery in the steel pipe single pile; the lower ends of the steel pipe grouting piles are inserted into the seabed, and the upper ends of the steel pipe grouting piles are positioned above the sea level; the inner parts of the lower ends of the steel pipe grouting piles are grouted with concrete socketed piles of which the lower ends penetrate through the lower ends of the steel pipe grouting piles to be embedded and fixed in a baserock layer of the seabed. According to the rock-socketed single pile foundation disclosed by the invention, the difficult problem that at current, in China, full cut-off sock-socketed construction of large diameter pile foundation cannot be realized is effectively solved, and besides, the horizontal load bearing capacity and the antidumping capacity of the pile foundation are improved; the dynamic response of infrastructures is reduced, the application scope of the single pile foundation is enlarged, and the single pile foundation disclosed by the invention has a high application value.

The invention relates to a prefabricated laminated slab double-splicing type laminated shear wall and a construction method thereof. The prefabricated laminated slab double-splicing type laminated shear wall comprises a laminated wall supporting a floor slab, and an upper-layer laminated wall above the floor slab and a lower-layer laminated wall below the floor slab are arranged to be in up-and-down correspondence in position. The laminated wall comprises two prefabricated slabs which are vertically arranged in parallel, the two prefabricated plates are connected together through a middle rear pouring concrete layer, and the two prefabricated plates are provided with steel bar trusses which are combined together through the rear pouring concrete layer. The steel bar truss on the lower-layer laminated wall is provided with an upper-chord steel bar A upwards penetrating the floor slab and combined with the rear pouring concrete of the upper-layer laminated wall. By means of the prefabricated laminated slab double-splicing type laminated shear wall, the manufacturing process is simple, the manufacturing technology is simplified, the input of equipment cost is reduced, the production difficulty is lowered, good construction operability is achieved, and high engineering application value is achieved.

The invention relates to a device for automatically adjusting and controlling tension. The device for automatically adjusting and controlling the tension is characterized by comprising a tension controller, a direct-current motor, a trapezoid lead screw nut, a potentiometer type sensor and a tension sensor. An output shaft of the direct-current motor is fixedly connected with a nut body of the trapezoid lead screw nut, a lead screw of the trapezoid lead screw nut is fixedly connected with the tension sensor, a rotating shaft of the potentiometer type sensor is meshed with the output shaft of the direct-current motor, and the tension controller collects actual tension of the tension sensor and actual angular displacement of the potentiometer type sensor, controls the direct-current motor to rotate, and indirectly achieves control over tension through control over angular displacement. The device for automatically adjusting and controlling the tension achieves adjustment of the tension through a method of carrying out fixed step-length position control on the direct-current motor through the potentiometer type sensor, when a value of the actual tension reaches to a value of target tension, invariability of the tension can be kept and controlled through self-locking effect of the trapezoid lead screw nut, and the situation that energization is carried out all the time to carry out dynamic regulation on the tension is not needed.

The invention relates to a dyeing machine cloth outlet squeezing water recovery device and a working method thereof. The device comprises a dyeing cylinder with a cloth inlet and outlet in the front end, a frame capable of swinging up and down is hinged to the dyeing cylinder above the cloth inlet and outlet, a pair of rollers is arranged in the frame, and the bottom of the frame is provided with a liquid guide plate capable of extending into the cloth inlet and outlet when the frame swings downwards. By means of the dyeing machine cloth outlet squeezing water recovery device, squeezing water recovery is conducted on cloth when the cloth is discharged, the recovery efficiency is high, the device is convenient to use, waste of dye liquor is effectively reduced, and the cleanness and the tidiness of the working environment are ensured.

The invention relates to a bridge prefabricating device adopting self-propelled line production and a method thereof. The bridge prefabricating device comprises a steel rail arranged at the bottom, wherein a trolley which can move along the steel rail is arranged on the steel rail, a reinforcement binding region, a template mounting region, a concrete pouring region, a steam curing region and a prestress tension region are sequentially arranged from the front to the back along the length direction of the steel rail, and a steam curing shed is arranged on the steel rail of the steam curing region. The bridge prefabricating device provided by the invention realizes an operation mode that construction procedures of a bridge prefabricating process are fixed and task of each working procedure is complete in regions and can improve use efficiency of tool equipment, shorten construction period, save floor space and improve bridge prefabricating efficiency, thereby having good popularization and application values and economic and social benefits.

The invention relates to a 3D manufacturing method for an electrode of an in-plane switching blue phase liquid crystal display device. The electrode may go deep into the blue phase liquid crystal to reduce a driving voltage. By way of layered manufacturing, the method comprises the steps: (1) designing a three-dimensional digital model; (2) performing an approximating process on the three-dimensional digital model to eliminate an irregular free surface, and converting the model into an STL format that can be accepted and operated by a 3D printer; (3) hierarchically slicing the model into a series of two-dimensional cross-sectional graphs; (4) preparing electrode printing paste; (5) printing the electrode by a 3D printing apparatus, and performing 3D molding on materials by curing or hardening; (6) performing a subsequent process on the printed electrode to form a desired electrode of the in-plane switching blue phase liquid crystal display device. The 3D manufacturing method, with great manufacturing flexibility, effectively reduces the complexity in and the cost of manufacturing the electrode of the in-plane switching blue phase liquid crystal display device.

The invention relates to a stereo matching algorithm based on image segmentation. The method comprises the steps of S01, conducting image segmentation on a left color image and a right color image by means of the mean-shift algorithm; S02, matching the left color image with the right color image by means of the large window matching method based on matching cost with statistics combined with absolute error summation (SAD), and extracting seed points high in matching accuracy; S03, diffusing the seed points obtained from the S02 to the whole area with the small window matching method by means of the image segmentation result obtained from the S01 in each area according to the smoothness restriction condition of the area; S04, filling up a disparity map obtained from the S03; S05, obtaining a dense disparity map finally. According to the stereo matching algorithm based on image segmentation, a low-grain area can be well detected, and foreground expansion can not be caused in uncontinuous-parallax areas.

The invention relates to an f6mm all-pass day and night full-color high-definition fixed-focus lens, which is characterized in that in an optical system of the lens, a front lens group A with the negative focal power, a diaphragm and a back lens group B with the positive focal power are sequentially arranged in the incidence direction of light rays from the front side to the back side; the front lens group A comprises a biconcave lens A-1, a negative crescent lens A-2 and a biconvex lens A-3 in sequential arrangement front the front side to the back side; the back lens group B comprises a biconvex lens B-1, a biconcave lens B-2, a biconvex lens B-3 and a gluing group in sequential arrangement from the front side to the back side; the gluing group is sealed, connected and bonded with a biconvex lens B-4 and a negative crescent lens B-5. The lens provided by the invention can still be used normally in high-low-temperature environment; the resolution is high; the high-quality color imaging can be realized in low-illumination and night environment; the total length of the light path is short; the structure is compact; the light passing caliber is in the full light passing state; the light inlet quantity is sufficient; the matching with high-resolution CCD (charge coupled device) or CMOS (complementary metal-oxide-semiconductor transistor) being 3-million pixels or higher can be realized.

The invention discloses a portable audio playback device and a related mobile multimedia playing device. A plurality of micro-speaker monomers are arranged on a housing of the portable audio playback device, a plurality of micro-speaker monomers form a speaker array, the housing comprises at least one largest surface and a plurality of side surfaces, and a radiation surface of the speaker array is one or a plurality of side surfaces. Compared with the prior art, the provided portable audio playback device utilizes the micro-speaker array and can simultaneously emit sound signals from one or a plurality of radiation surfaces, avoid the problem that a sound field is not ideal due to high-frequency directivity, expand the sound field, broaden a sound image, enhance the stereo effect, further improve the overall sound effect of the device and lead the sound effect to be in line with music playback.

The invention relates to a cement prefabricated part direct-extrusion vibration method integral forming mold and a machining method thereof. The mold comprises an inner mold body and an outer mold body. A cavity used for pouring is formed between the inner mold body and the outer mold body. An opening and closing mechanism for pushing the inner mold body to expand outwards and extrude downwards is located in the inner mold body. The inner mold body comprises an inner bottom mold located at the bottom and an inner barrel mold forming a side wall in a defining manner. The inner barrel mold is defined by steel plates. Two connectors at steel plate seams are overlapped and in lap joint together and can slide relatively. The bottom of the inner barrel mold is movably connected with the inner bottom mold. A feeding device and a vibration deice located at the bottom of the inner mold body and the bottom of the outer mold body are further included. According to the cement prefabricated part direct-extrusion vibration method integral forming mold and the machining method thereof, air and redundant water in products are exhausted through extrusion vibration, the strength and density of product concrete are improved, a supernormal dense effect is obtained, and product anti-permeability and structural performance rigidity are improved. Due to the fact that absolute stability of not allowing concrete to have moving space exists in extrusion force, cracks generated by uneven settling do not exist.

The invention relates to passion fruit processing equipment. The passion fruit processing equipment comprises a working platform, wherein a fruit tidying tank for allowing passion fruits to be placedis arranged at the upper part of the working platform; a pair of rotating disks which are horizontally arranged is arranged on the working platform; a fruit cutting service position, a pulp sucking service position and a peel falling service position are arranged on each rotating disk; a cutting knife which is located between the two rotating disks is arranged at the fruit cutting service positions of the rotating disks; a discharging rail which accesses to the middle part of the two rotating disks is arranged on the fruit tidying tank; semicircular grooves are uniformly formed in the periphery part of each rotating disk; a fruit clamping machine for sucking the passion fruits is arranged at each semicircular groove in the corresponding rotating disk; and a pulp sucking machine for suckingpulp in the passion fruits is arranged at each pulp sucking service position of the corresponding rotating disk. The passion fruit processing equipment disclosed by the invention is scientific and reasonable in structure, convenient to use, time-saving and labor-saving; the mechanized production and processing of the passion fruits are realized; and the pulp and the peel of the passion fruits areseparated and are respectively recovered, so that the foods are safe and hygienic, the processing efficiency of the passion fruits is improved, and the processing cost is reduced.

The invention relates to one-time punching and forming equipment for an automobile roof sunshade and a production method thereof. The equipment comprises a first production line and a second production line, wherein a gluing device is arranged at one end of the first production line, and a bearing frame A for placing a coiled material A is arranged at the other end of the first production line; amaterial carrying trolley and a grabbing device A for grabbing PU foam on the material carrying trolley to the gluing device are arranged on the feeding side of the gluing device; a spraying room anda grabbing device B for transferring combined PU foam to the second production line are arranged on the first production line; a bearing frame B for placing a coiled material B is arranged at one endof the second production line; a first oil press is arranged on the second production line; and a second oil press for punching a PU composite base material into a finished sunshade product is arranged beside the other end of the second production line. According to the forming equipment, full-automatic unmanned operation is adopted, the production efficiency is high, the phenomena of scraping, stacking and the like caused by personnel carrying in the production process are avoided, the equipment investment is reduced, maintenance cost is reduced, the automation degree is improved, and production cost is reduced.

The invention relates to an angle-type guide vane opening degree measurement device, and the device comprises a digital display angle ruler. One end of one of two measuring arms of the digital displayangle ruler is hinged to one end of the other one of the two measuring arms. The two measuring arms are provided with calipers which extend out of the other ends of the measuring arms, and the end parts of the calipers are provided with sharp parts. The lengths of the two measuring arms are consistent, and the lengths of the parts, extending out of the measuring arms, of the two calipers are consistent. The device provided by the invention can directly read the value on the digital display angle ruler, completes the measurement and reading simultaneously, reduces the errors, is high in measurement efficiency, is simple in operation, is convenient to use, is high in measurement precision, and reduces the requirements for an operator.

The invention relates to an ultra-high performance concrete slab seam connecting structure and a construction method thereof. The ultra-high performance concrete slab seam connecting structure comprises two ultra-high performance concrete slabs positioned in the same plane, wherein a cast-in-situ seam is left in the middle between the two ultra-high performance concrete slabs; a high-strength steel wire mesh is arranged in each ultra-high performance concrete slab; one side, facing the cast-in-situ seam, of the high-strength steel wire mesh penetrates out from the lateral part of the same sideof the ultra-high performance concrete slab and extends into the cast-in-situ seam; the extending-out parts of the high-strength steel wire meshes at two sides are connected through a high-strength steel wire mesh sheet; and an ultra-high performance concrete slab seam plate for connecting the ultra-high performance concrete slabs at two sides is cast in the cast-in-situ seam. The ultra-high performance concrete slab seam connecting structure has the advantages that the stress is reasonable; the strength is high; the structure dead weight can be greatly reduced; the mechanical property is excellent; the durability is high; the problem of damage of concrete slabs and concrete slab seam regions is effectively solved; the capability of high strength, high toughness and crack resistance of the ultra-high performance concrete is fully realized; and great practical values and good economic benefits are realized in the engineering practice.

The invention relates to a single-winding single-phase AC motor control module which comprises a single-phase AC motor winding. An inlet end of the single-phase AC motor winding is connected with one end of an external AC power supply, an outlet end of the single-phase AC motor winding is connected with an AC input end of a rectifier bridge, the other AC input end of the rectifier bridge is connected with the other end of the external AC power supply, a DC output end of the rectifier bridge is connected with one end of a driver, the other DC output end of the rectifier bridge is connected with the other end of the driver, and a control end of the driver is used for receiving PWM signals sent by a processing unit. According to the single-winding single-phase AC motor control module, a conventional single-phase AC motor secondary winding, a starting capacitor and a centrifugal switch are eliminated, and the defects that the secondary winding has to be arranged in the running process, running of the capacitor causes power decrease, starting currents are too large instantly, silicon controlled pressure regulating speed change low harmonic waves pollute power grids, default-phase type frequency modulation and speed regulation cost is high and output power is low are overcome.

The invention relates to a feeding device and method of an integrated circuit chip testing and sorting machine. The feeding device comprise a rack, wherein a material groove used for vertically stacking packaging pipes provided with semiconductor devices in a single row is arranged on the rack; a discharging port capable of allowing a single packaging pipe to pass is reserved beside the bottom ofthe material groove; a pushing mechanism for pushing the lowest packaging pipe out of the discharging port is arranged below the material groove; a swinging mechanism for swinging the pushed-out packaging pipe to an inclined state is arranged beside the front end of the material groove; a feeding guide rail is arranged in front of the swinging mechanism; a feeding channel used for conveying the semiconductor devices is arranged in the feeding guide rail; and the rear end of the feeding channel is in butt joint with the lower end of the packaging pipe after swinging and inclining. According tothe feeding device of the integrated circuit chip testing and sorting machine, continuous and stable feeding of the semiconductor devices one by one is achieved, the semiconductor devices are not prone to being damaged, the efficiency is high, and the practicability is high; and a worker only needs to stack the packaging pipes with the semiconductor devices in the material groove, and the operation is simple and convenient.

The invention relates to an LTE transmission and coverage system for achieving FTTH based on the digital technology. The LTE transmission and coverage system for achieving FTTH based on the digital technology is characterized by comprising near-end equipment and far-end equipment, wherein the near-end equipment comprises a near-end duplexer / time slot switch switchover unit, an LTE near-end down link, an LET near-end up link and a near-end digital signal processing unit, the far-end equipment comprises a far-end digital signal processing unit, an LTE far-end down link, an LTE far-end up link and a far-end duplexer / time slot switch switchover unit, the near-end digital signal processing unit communicates with the far-end digital signal processing unit through optical fibers, the near-end equipment is further connected with an LTE signal source, and the far-end equipment is further connected with a transmit-receive antenna. The LTE transmission and coverage system for achieving FTTH based on the digital technology is stable in performance, high in antijamming performance, high in anti-fading performance, high in safety and far in transmission distance, saving network cost and the like.

The invention relates to a device for preventing residual dripping of a soap dispenser and a working method thereof, comprising a connecting sleeve installed at the discharge end of a soap outlet pipe of the soap dispenser. The connecting sleeve is provided with a device that is closed by its own elastic force and opened by fluid pressure. opening and closing device. The present invention utilizes the principles of elastic reset to close and pressure push to realize opening. The soap liquid can be stopped immediately after the soap dispenser is closed, preventing soap liquid remaining in the soap outlet pipe from dripping and reducing the waste of soap liquid.

The invention relates to an ash removing device for a soot pipeline and a work method of the ash removing device for the soot pipeline. The ash removing device for the soot pipeline comprises a water pipe located on the top of the inner side of the soot pipeline and arranged in the axial direction; injection nozzles performing injection towards the inner wall of the soot pipeline are arranged on the water pipe at intervals; the two sides of the inner portion of the soot pipeline are provided with lead screws arranged in the axial direction; a plurality of ash shoveling plates arranged at intervals are connected between the lead screws on the two sides; each ash shoveling plate is of an arc-shaped structure, and the lower side face of each ash shoveling plate is attached to the inner side wall of the lower portion of the sooth pipeline; and the two ends of each ash shoveling plate are hinged to a nut base in threaded connection with the lead screws so that the lead screws can drive the ash shoveling plates to move in the axial direction when the lead screw rotates. The ash removing device for the soot pipeline is simple in structure and easy, convenient and fast to operate, solves the problems that because the smoke gas flowing speed in the soot pipeline is low, soot remains, forms scales and cannot be removed easily, and is safe and stable, high in practicability, good in soot removing effect and high in efficiency.

The invention relates to a simulation model for evaluating the performance parameters of a vehicle power battery. The simulation model comprises a basic parameter input model, an algorithm model, an oscilloscope model and a failure warning model. The basic parameter input model is used for conducting input configuration according to the specific parameters of the vehicle power battery which is actually evaluated. The algorithm model is used for conducting real-time simulation calculation on the performance parameters of the battery. The oscilloscope model displays a two-dimension curve of dynamic change of each performance parameter in real time according to simulation data calculated by the algorithm model. The failure warning module conducts real-time warning when failure occurs on the performance parameters according to a set threshold value of each performance parameter. By the adoption of the simulation model for evaluating the performance parameters of the vehicle power battery, through model research of the lithium ion battery, a method for further improving the performance of the battery and optimizing the charge-discharge process can be provided, and the battery model can also be embedded into an electric vehicle model system to conduct simulation research on a finished vehicle.

The invention relates to an automatic printing device for bamboo chopsticks. The automatic printing device for the bamboo chopsticks comprises a label reel and a body paper reel. The automatic printing device for the bamboo chopsticks further comprises a driving device for driving the body paper reel to rotate in order to roll up the body paper, and a labeling mechanism located between the label reel and the body paper reel, wherein a bamboo chopstick conveying mechanism is arranged at the left side of the labeling mechanism; the labeling mechanism comprises a bottom board adhered to the bottom face of the body paper of the label, a pressing plate capable of moving upwards and downwards and limiting boards which are respectively arranged on the front side and the back side of the bottom board for positioning the bamboo chopsticks and can be moved upwards and downwards; limiting grooves for limiting the bamboo chopsticks are correspondingly arranged on the front and the back limiting boards front and back; the bottom faces of the limiting grooves are lower than to the upper surface of the bottom board, so that the bamboo chopsticks are adhered to the upper surface of the body paper. Meanwhile, the invention further provides an automatic printing method for the bamboo chopsticks. The automatic printing device and method for the bamboo chopsticks has the advantages: the automation degree is high, the labor productivity is improved, the labor cost is reduced, the wastes are reduced, the raw materials can be saved, and the balanced and stable quality of the product can be promoted.

The invention relates to a monitoring device and method for high-supported formwork template settlement. The device comprises a support frame for supporting a template, the upper ends or the lower ends or the upper and the lower ends of a plurality of vertical rods on the support frame are provided with optical fiber grating static force levels, the optical fiber grating static force levels, whichare positioned at the same ends of the vertical rods, are connected in series with a liquid conveying pipe through a gas conveying pipe, and the optical fiber grating static force levels are connected with optical fiber grating demodulators through optical fiber. By the monitoring device for template support frame foundation settlement, the problems that the high-supported formwork template settlement in the market is unable to be monitored in real time and observation points inside the template are unable to be measured and easily influenced by wind load are solved, high-precision real-timemonitoring can be carried out on settlement amount respectively caused by support frame deformation, foundation deformation or by the combined action of the support frame deformation and the foundation deformation, the high-supported formwork template collapse and unstable accidents are prevented from occurrence, the potential safety hazard is timely eliminated, and the personal safety of construction workers is ensured.

The invention relates to an injection molding frame veneer gluing method. An air exhaust device is utilized for carrying out outward exhausting on air exhaust holes, so that leather is attached to the inner side faces of cavities in lower moulds; molten injection molding materials are injected into the cavities through material injection holes; upper moulds are opened, and a formed frame is taken out; and meanwhile, the invention further relates to an injection molding frame veneer gluing device. The device comprises a machine table, and an intermittent-rotating annular rotating disc is arranged on the machine table; a plurality of injection moulds are arranged on the annular rotating disc at intervals, and an injection molding machine is arranged at the position, arranged on the center of the annular rotating disc, of the machine table; a material injecting station and an opening and closing mould station are arranged on the machine table, and the injection moulds comprise the upper moulds and the lower moulds; and the air exhaust holes leading to the bottoms of the cavities are formed in the lower moulds, and the material injection holes leading to the tops of the cavities are formed in the upper moulds. Frame injection molding and veneer gluing are carried out at the same time, the manufacturing technology is simplified, the use amount of glue is saved, the manufacturing cost is saved, and the method and device are suitable for frames with figures, and modeling is attractive.

The invention belongs to the field of wireless communication, and particularly relates to a small broadband differential excitation dual-mode and dual-polarized base station antenna in this field. Theantenna comprises a first dielectric plate, a second dielectric plate a third dielectric plate, a reflection plate, a coaxial connector, a radiation patch, a driving branch and baluns. The first dielectric plate is horizontally arranged at the uppermost layer of the whole antenna; the reflection plate is horizontally arranged at the lowest layer of the whole antenna; the pair of mutually orthogonal baluns are arranged between the first dielectric plate and the second dielectric plate, and the first dielectric plate and the reflection plates are respectively perpendicular to the baluns up anddown; the orthogonal surfaces of the orthogonal baluns are respectively printed with the second dielectric plate and the third dielectric plate to allow the second dielectric plate and the third dielectric plate to be mutually perpendicular to the first dielectric plate and the reflection plate. The small broadband differential excitation dual-mode and dual-polarized base station antenna ensuresthe miniaturization while ensuring the broadband.

The invention relates to an unbonded prestressed assembly-type joint provided with an energy dissipation device and a construction method. The unbonded prestressed assembly-type joint comprises a prefabricated concrete column and a prefabricated concrete beam which are vertically connected, the end of the prefabricated concrete beam is connected with the side wall of the prefabricated concrete column through a corrugated pipe damper, one end of the corrugated pipe damper is fixedly connected to the side wall of the prefabricated concrete column, and the other end of the corrugated pipe damperis fixedly connected to the end of the prefabricated concrete beam; the same prestressed rebar penetrates through the prefabricated concrete beam and the prefabricated concrete column, and penetratesthrough the middle of the corrugated pipe damper. The assembly-type joint has the advantages of a high energy dissipation capability, good ductility and a good damping effect, and can prevent the beamand the column from being collided; moreover, the assembly-type joint is simple in construction, easy to achieve and low in cost, a small building space is occupied, and the using efficiency of the building space is not influenced.

The invention relates to a uniform-grain-size agarose gel microsphere production system and a production process thereof. The system comprises a production area and a control area positioned beside the production area, a gel mill and a premix heating kettle are arranged in the production area, the gel mill is connected with a microwave heating kettle, the premix heating kettle is connected with an ultrasonic uniform defoaming kettle, both the microwave heating kettle and the ultrasonic uniform defoaming kettle are connected with an ultrasonic homogenizing kettle, a high-frequency ultrasonic homogenizing kettle is connected with an oil-water separator, a water-phase outlet of the oil-gas separator is connected with a microsphere cleaning device which is connected with a mixer, and the mixer is connected with a metering subpackaging machine. Large-scale production of agarose gel microspheres uniform in grain size, smooth in sphere form and free of impurities is realized, and the system plays a certain role in promoting development of biomedicine industry of China and has good social and economic benefit.

The invention provides a light condensation type Fresnel lens plant incubator and a using method thereof. The light condensation type Fresnel lens plant incubator comprises an incubator body and an LED lamp panel arranged on the inner top of the incubator body. A Fresnel lens used for light condensation is arranged below the LED lamp panel. The light condensation type Fresnel lens plant incubator is simple in structure, the utilizing rate of light energy in the incubator can be greatly increased through the incubator, consumption and waste of energy are reduced, the color and the density of LED lamps are both adjustable, and the requirements for different illumination intensities, different light qualities and different illumination times of plants at different growing stages are met. The incubator is further provided with a temperature and humidity control system and a carbon dioxide control system, and temperature, humidity and carbon dioxide in the incubator can be controlled according to the requirements of the plants at different growing stages.