93results about How to "Reduced adjustability" patented technology

The invention provides manufacturing equipment of a laser additive. The manufacturing equipment comprises a frame, a work cavity, a laser system, an atmosphere protection system and a preheating system, wherein the work cavity is a sealed cavity defined by a heat insulation sandwich panel; a scanning galvanometer of a laser system is arranged at the top of the external part of the work cavity; the preheating system is a three-dimensional flexible heating system, and has a plurality of radiation heating layers with adjustable interlayer spaces arranged at the top inside the work cavity; an air feed pipe and an air return pipe of the atmosphere protection system are divided into a plurality of passages to be respectively connected with two sides of the work cavity through U-shaped tee joints, so that the circulation of inactive gas inside the work cavity is achieved. By adopting the manufacturing equipment of the laser additive, the space can be effectively saved, the heat loss is reduced, the heating efficiency is improved, the energy consumption is reduced, the temperature inside the work cavity is relatively even in distribution, the protective effect on the processing process caused by an internal atmosphere is obvious, different types of materials (metal, macromolecule and the like) can be molded, the processing deformation is reduced, and the excellent quality of molded spare parts is ensured.

The invention discloses a denture data processing and three-dimensional printing system comprising a data acquisition device, a data processing device and a three-dimensional printing device, wherein the data acquisition device comprises hand-held equipment, data storage equipment and display equipment; the hand-held equipment can be used for performing three-dimensional color scanning and image shooting on the mouth cavity; the data processing device is a computer, is provided with data reading recovery software and CAD design software, can be used for restoring and recovering data transmitted by the data acquisition device and designing and modifying the data, and then can be used for restoring the data to obtain a virtual simulated tooth model, namely, to obtain required virtual model data; and the three-dimensional printing device can be connected with the data processing device, and a required denture manufacturing working model can be obtained according to the obtained virtual model data by virtue of three-dimensional printing and molding. The denture data processing and three-dimensional printing system disclosed by the invention does not need to take tooth models, can also be used for preparing dentures by virtue of three-dimensional printing and rapid molding, is manpower-saving and short in cycle, and can also meet the personalized production requirements.

The invention discloses a visualization detection method of electronic product electronic design automation (EDA) design manufacturability. Printed circuit board (PCB) three dimensional (3D) simulation of an EDA design document is conducted, PCBphysical parameter detection, PCB assembling ability, PCB welding quality detection and Gerber bill of material (BOM) coordinate detection are conducted in sequence, and specific error positions and types of former four steps of detection are displayed in visualization mode on a PCB 3D figure. On the basic of complete actual production experiences, the visualization detection method and a system of the EAD design manufacturability are developed according to international standard of information processing center (IPC), the PCB physical parameter detection, the PCB assembling ability, the PCB welding quality detection and the gerber BOM coordinate detection which are all designed by EDA are integrated, the various actual problems which are the contradictions of manufacture and design of PCB and are faced by enterprises are resolved, and efficiency and quality of electronic manufacture in particular to an original equipment manufacturer (OEM) are improved.

The invention discloses an FDM (frequency-division multiplexing) 3D (three dimensional) printer. The 3D printer comprises a rack and an X-axis moving system, wherein a controller is connected with the X-axis moving system and a printing device; the X-axis moving system comprises a first numerical control motor and a horizontal X-axis moving guide rail, the horizontal X-axis moving guide rail is connected with a left-side support arm and a right-side support arm, the first numerical control motor is connected with a first synchronous toothed belt, the first synchronous toothed belt is a long-strip belt, one end of the long-strip belt is connected with the left-side support arm, the other end of the long-strip belt is connected with the right-side support arm, a first groove is formed in the left-side support arm, a second groove is formed in the right-side support arm, the left end of the first synchronous toothed belt is meshed and locked with the first groove, the right end of the first synchronous toothed belt is bent inwards, tooth grooves on two sides of a bent part of the first synchronous toothed belt are correspondingly matched with a tooth top to form a gear belt overlap region, and the gear belt overlap region is matched and locked with the second groove. The FDM 3D printer is simple in structure and small in volume and low in cost.

The invention relates to multifunctional compound microecological preparation nano-selenium-recombination expression VIP (vasoactive intestinal peptide)-lactococcus lactis and a preparation method. Toxic sodium selenite can be converted into non-toxic red simple-substance nano-selenium, and synthesized nano-selenium is enriched in lactococcus lactis NZ9000 in cells. The invention also discloses amethod for preparing a multifunctional compound microecological preparation SENPs-rVIP-L.lactis NZ9000 based on lactococcus lactis NZ9000. The problems that existing selenium supplementing additives have high toxicity action and low bioavailability and easily cause environment pollution, existing production technical procedures are complicated, the cycle is long and the production cost is high andthe problems about remaining of antibiotics, drug resistance and the like are solved.

The invention relates to an ignition target key component assembling platform, and discloses an automatic precise assembling platform for fusion target key components to solve the problems that a semi-automatic assembling device is adopted in the existing ignition target key component assembling, the assembling process and the operating process are complex, many added up errors exist, and the stability is poor. A diagnosis ring initial positioning and clamping device, a pellet clamping and positioning device, an upper external element clamping and positioning device, a vertical microscope image feedback device, a diagnosis ring fine positioning and clamping device, a horizontal microscope image feedback device and a lower external element clamping and positioning device are anticlockwise arranged on the upper end face of a substrate, the pellet clamping and positioning device is arranged between the diagnosis ring initial positioning and clamping device and the upper external element clamping and positioning device, the vertical microscope image feedback device is arranged between the diagnosis ring fine positioning and clamping device and the upper external element clamping and positioning device, and the horizontal microscope image feedback device is arranged between the diagnosis ring fine positioning and clamping device and the lower external element clamping and positioning device. The automatic precise assembling platform is used for assembling the fusion target key components.

The invention provides a method and a device for quickly splicing camera images. The method comprises steps: an image photographed by a standard camera is acquired as a standard image, and an image photographed by a target camera is acquired as a reference image; according to the position relationship between the standard camera and the target camera, a first predicted overlapped area is set on the standard image, and a second predicted overlapped area is set on the reference image; whether the first predicted overlapped area and the second predicted overlapped area are overlapped completely is judged; and when the first predicted overlapped area and the second predicted overlapped area are not overlapped completely, according to the actual overlapped condition between the first predicted overlapped area and the second predicted overlapped area, the adjustment direction of the target camera is determined. Thus, the splicing effects can be improved, the adjustment process is simplified, the adjustment times are reduced, and waste of manpower and material resources is avoided.

The invention discloses a signal self-adaptive access method and system based on VW display capability automatic detection. The method comprises the steps that the display area, with windowing signals, on a display splicing wall is calculated, the rest of the display area and the largest signal window size capable of being supported are calculated, and self-adaptive access of singles is achieved by preferentially adjusting the windowing signal window position if the current access signal window is larger than the largest signal window. The problems that adjustment is achieved manually, the operating time is too long, and errors are easily made are reduced, the signal windowing utilization ratio of the display splicing wall is improved, and emergency processing efficiency is ensured.

The invention provides a support device allowing precise adjustment of a laser indicating instrument and a measurement method. An L-shaped right-angled bracket platform is fixed on a cavity wall, two parallel bolt hole sliding chutes are machined in a horizontal support plate of the L-shaped right-angled bracket platform, a transverse adjustment base is adjustably mounted on the bolt hole sliding chutes through first bolts, fixed clamping plates are mounted on the transverse adjustment base, a longitudinal adjustment support is rotationally mounted on the fixed clamping plates through reinforcing bolts, the laser indicating instrument is mounted in a cylindrical sleeve of the longitudinal adjustment support, and the laser indicating instrument is matched with angle fine-adjustment mechanisms mounted at two ends of the cylindrical sleeve for angle adjustment; a protective cover is adjustably mounted on threaded hole sliding chutes of the horizontal support plate through second bolts. Bilateral quick movement can be realized, transverse precise positioning is facilitated, the angle can be adjusted at will in the vertical direction, a sloped inclined shaft is guided conveniently, and the effect of blast construction on the laser indicating instrument can be effectively avoided.

The invention belongs to the field of medical glass thermometers, in particular to a mercury-free glass thermometer and a production method thereof. The mercury-free glass thermometer comprises a thermometer tube body and a temperature sensing bulb, and further comprises a glass capillary tube with one end connected with the temperature sensing bulb and a necking-down structure arranged at one end of the glass capillary tube. The necking-down structure comprises a stationary point protrusion and a temperature sensing liquid flow channel. Temperature sensing liquid contained in the temperature sensing bulb is further included. The temperature sensing liquid is made of gallium-base alloy. The adopted gallium-base alloy comprises gallium, indium, stannum, zinc, bismuth, antimony, lead, and one or two of rare earth metals of lanthanum, cerium and neodymium. According to the mercury-free glass thermometer and the production method thereof, the gallium-base alloy is used for replacing traditional mercury. The production process and the gallium-based alloy and the manufacturing method of the thermometer are improved, and the produced thermometer accords with an international medical instrument standard, and is environmentally friendly and excellent in performance.

The invention discloses a mechanical hoisting apparatus. The apparatus comprises a pedestal; a rotary table which can rotate horizontally is arranged on the pedestal; a hoist boom is arranged on the rotary table, the hoist boom is provided with the first hoister, and the top of the hoist boom is provided with a pulley for carrying articles; a suspension cable in the first hoister protrudes and extends as well as surrounds a pulley for loading articles at the top of the hoist boom, and the end of the suspension cable is provided with a main suspension hook; the end of the hoist boom far from the rotary table is provided with a horizontally arranged slide arm, and the side arm is provided with an electric hoist which can move along the slide arm. An auxiliary suspension hook which protrudesby the electric hoist is matched with the main suspension hook, in order to realize the effects for facilitating fixation of articles and enhancing stability of fixed articles; compared with the single suspension cable fixed article, the electric hoist and double suspension cables of the first hoister are used for carrying out fixation of double ends of the articles which need to be carried, and judgment of center of gravity of an object and selection of fixed hoisting points, adjustment and other workloads are reduced; inclination resistance and migration capability of the object during air suspension and movement are enhanced, and throwing and falling probability of the object are reduced.

The invention provides an automatic powder selecting control method, system and device for a vertical mill classifier. The automatic powder selecting control method for the vertical mill classifier comprises the following steps that a set target wind pressure value and a set powder fineness target value are input, outlet wind pressure and inlet wind pressure of the vertical mill classifier are collected, a wind pressure difference value between the outlet wind pressure and the inlet wind pressure is calculated, and a running state of a fan is adjusted according to the wind pressure differencevalue and the target wind pressure value; and a powder granularity value is collected, and a state of a frequency converter of the vertical mill classifier is adjusted according to the powder granularity value and the powder fineness target value. The required powder granularity can be automatically obtained according to the set values, steps of manual sampling and adjustment are reduced, in a screening process, the wind pressure difference value is continuously adjusted, the state of the fan is adjusted according to the wind pressure difference value and the target wind pressure value, the defect that the accuracy of powder screening and grinding of the vertical mill classifier is affected due to deviation of wind pressure is overcome, the problem of unbalance in powder discharging and feeding is solved, and the problems of non-uniform powder fineness screening and huge waste caused when products with specific indexes are adjusted are solved.

The invention relates to auxiliary positioning equipment used for machining forged pieces like a bearing ring through a press open process, in particular to an adjustable positioning device for open punching of a press. The adjustable positioning device for open punching of the press is characterized by comprising a pressing cover (2), wherein a through hole is formed in the middle of the pressing cover (2), at least three installation holes (6) are distributed in the outer wall of the pressing cover (2) in the peripheral direction, a telescopic positioning rod is installed in each installation hole (6), and the two ends of each telescopic positioning rod extend into and out of the outer wall of the pressing cover (2) respectively, so that a forged piece to be machined is clamped in the middle. The adjustable positioning device for open punching of the press has the advantages of solving the problems and overcoming the quality defects of an original open punching process, improving and guaranteeing the quality of products, largely reducing the investment and adjustment frequency of moulds, enabling production and machining to be more convenient, largely improving the production efficiency, and being applicable to products of various specifications through the telescopic adjustment of a spring and a spare cap.

The invention discloses a liquid metal solidification in-situ observation device and an observation method under a microgravity state. The device comprises an ultrasonic suspension system and a soundfield visualization system; the ultrasonic suspension system is used for suspending a liquid metal sample in the air, and the sound field visualization system is used for displaying a generated acoustic standing wave field, and observing the change of the acoustic standing wave field in a liquid metal cooling process in the microgravity state in real time. According to the liquid metal solidification in-situ observation device provided by the invention, in-situ observation can be carried out on the solidification process of a liquid metal under the microgravity state.

The invention discloses a sectional-stacking jacking mounting method of a vase-shaped space steel structure. The method comprises the following steps of: dividing construction sections and adjustment sections according to the abrupt change positions of the cross section of the vase-shaped space steel structure; specifying the initial shrinkage abrupt change position to the elevation of a jacking construction platform according to the bottom-to-top cross section dimension of the vase-shaped space steel structure; mounting the construction sections under the elevation of the jacking construction platform; erecting a jacking construction platform supporting system, an reinforcement region and a surrounding-protecting bracket, and mounting the jacking construction platform; mounting a jackingdevice on the jacking construction platform; employing a synchronous control system to perform control, jacking one by one and mounting by stacking a plurality of construction sections above the elevation of the jacking construction platform by means of a jacking device; and in the mounting process, when every construction section is jacked, mounting one adjustment section between the jacked construction section and the construction section to be jacked until the whole vase-shaped space steel structure is mounted and formed. No other large-scale assistant hoisting appliance is needed to be mounted, so that the work amount and difficulty of construction assistant measures are reduced, the construction safety is guaranteed and the cost is saved.

The disclosure provides a frequency conversion control device and control method for a heat pump. The frequency conversion control device comprises a loop formed by an evaporator, a compressor, a condenser and an electronic expansion valve, wherein the electronic expansion valve is driven by a controller through a driver; the compressor is controlled by the controller to realize frequency conversion control through a frequency converter; the controller receives acquired temperature and pressure of a refrigerant at an evaporator outlet and indoor temperature; the controller realizes respective control of the frequency of a compressor frequency converter and the opening degree of the electronic expansion valve to the indoor temperature and the superheat degree of the refrigerant at the evaporator outlet based on data acquired in real time by adopting a bivariate adaptive fuzzy control strategy. According to the control device, the superheat degree of the refrigerant at the evaporator outlet is controlled by using the electronic expansion valve; and the indoor temperature is controlled by adjusting the operation frequency of the compressor.

The invention discloses a microwave ablation needle and a microwave ablation therapeutic instrument thereof. The microwave ablation needle comprises an ablation needle body, a depth adjusting device,a first angle adjusting device, a second angle adjusting device, a bottom plate and a therapeutic instrument body, wherein the ablation needle body is slidably connected to the inner part of the depthadjusting device, and the needle tip of the ablation needle body is arranged downwards; and the lower end of the depth adjusting device is arranged in the upper end of the first angle adjusting device, and the second angle adjusting device is arranged behind the first angle adjusting device. The depth adjusting device, the first angle adjusting device and the second angle adjusting device can automatically and accurately control the depth and angle of the ablation needle inserted into a focus of a tumor, the accuracy of the position of the ablation needle is guaranteed, then a good treatmenteffect is guaranteed, besides, adjustment of the depth and angle of the ablation needle is reduced, and the operation time is shortened. The work intensity and technical and psychological quality requirements of doctors are reduced, and fear and worry of patients and family members are reduced.

The invention discloses a five-axis linkage tool grinder with a detection device. The tool grinder comprises a workbench, a spindle and an upright post; an X-axis sliding rail and an X-direction driving device are arranged below the workbench; the workbench axially slides and is positioned at the X-axis sliding rail; a positioning block capable of rotating around an X axis and a Z axis is fixedly arranged on the workbench; the spindle is fixed on a sliding table above the workbench; the sliding table can slide along a crossed sliding rail on the upright post towards a Y axis and the Z axis; the upright post is provided with a Y-axis driving device; the sliding table is provided with a Z-axis driving device; and the spindle is also provided with the detection device. Every feed shaft is provided with an independent driving device, so the axis linkage grinding can be realized; meanwhile, grinding wheels arranged on two sides of the spindle work cooperatively, so the clamping and adjusting times can be effectively reduced; and by the positioning detection device arranged on the spindle, the processing and positioning are more precise, and high-efficiency and high-precision part processing is realized.

The invention discloses a manufacturing method of an offshore oil drilling derrick. The manufacturing method is characterized in that, when members are manufactured, in addition to a flange end plate with connection angles in two directions, a large baseplate connected with a ship body, a top plate connected with a crownblock beam and a small flange plate required for adjusting a guide track which need to reserve welding movable ports before pre-assembly, other flange joints are welded 100% without reserving the movable ports; and when the pre-assembly is performed, a temporary piece is adopted for positioning outside the reserved movable ports, backing welding is not performed on the joints, and all the members are sent into a workshop for cleaning and welding after the pre-assembly, so that welded transverse cracks can be reduced. Compared with the prior art, the manufacturing method disclosed by the invention can improve efficacy, realize energy conservation and environmental protection, reduce labor consumption, simultaneously reduce production material consumption and electric consumption, save energy cost and eliminate the setup of an outfield welding protection device.

The invention relates to a thermal-insulating device of a thermal control system of an aerial camera. The thermal-insulating device comprises three stainless steel bolts and three thermal-insulating gaskets, which are symmetrically distributed along the axial direction, wherein a circular thermal-insulating pad is arranged between a first structure element and a second structure element; the thermal-insulating gaskets are arranged between an annular surface of each stainless steel bolt and a plane of the first structure element; the thermal-insulating gaskets, the first structure element, the thermal-insulating pad and the second structure element are fixedly connected through the stainless steel bolts; three symmetrically distributed bosses respectively extend from the first end face and the second end face of the thermal-insulating pad; the surfaces of three bosses at the first end face contact the plane of the first structure element; the surfaces of three bosses at the second end face contact the plane of the second structure element; a connection section of the stainless steel bolts penetrates through a through hole at the center of each boss; the boss structure is used for increasing the heat resistance and the contact heat resistance of the thermal-insulating pad; the heat of the first structure element is isolated through the thermal-insulating pad and the thermal-insulating gaskets; the heat is prevented from being directly transmitted to the second structure element from the first structure element; and the heat is also prevented from being conducted through the stainless steel bolts.

The invention discloses a combined biological treatment method for pharmaceutical and chemical sewage and organic waste gas. The method comprises the steps that waste gas is in countercurrent contactwith a mud-water mixture from an aerobic tank in virtue of a biological spray tower, so soluble organic matters in the waste gas are adsorbed; then the waste gas is subjected to Fenton treatment and aFenton reagent reaction, so degradation-resistant organic matters in the waste gas are oxidized and degraded; then the waste gas passes through a spray washing tower and is washed with clear water from a clear water tank; residual organic matters are removed from the washed waste gas through a biological filter, and then the waste gas is discharged through a chimney; after wastewater is treated by a Fenton reaction tank, an anoxic tank, an aerobic tank and a sedimentation tank, upper-layer clear water reaching a standard in the sedimentation tank enters the clear water tank; and washing liquid of a Fenton treatment tower is discharged into the Fenton reaction tank. The method integrates advanced oxidation, anaerobic and aerobic biological purification, a biological filter treatment process and other processes, and has the characteristics of high combined wastewater and waste gas treatment efficiency, low Fenton reagent consumption, low operating cost and the like.

The invention provides a technical scheme of a roll allocation method and device for optimization of a roll pass system. The scheme comprises three types of rolls with the specifications of phi 610*760, phi 770*1000 and phi 860*1200, a guide mechanism used for guiding steel materials and a cooling mechanism used for cooling the steel materials. The roll allocation method and device for optimization of the roll pass system are characterized in that the three specifications of rolls are semi-steel rolls with the carbon content of 1.6%, each of the three specifications of rolls is additionally provided with a roll groove on the premise that the safety factor of roll rings is 0.6-0.9, and the section area of each roll groove is smaller than or equal to the section area of original roll grooves of the three specifications of rolls. Meanwhile, in order to adapt to the variation of the roll grooves of the rolls, the guide mechanism and the cooling mechanism are modified, the single-groove rolling amount of the rolls is largely improved, and the problems of low work efficiency and heavy workloads on technical personnel caused by frequent replacement of the rolls are avoided.

The invention relates to a wireless communication technology and particularly relates to a wireless local-area-network architecture technology in PLC communication. A wireless local-area network is a significantly convenient data transmission system which uses a radio frequency technology and substitutes an old-fashioned local-area network which is comprised of twisted-pair copper wires so that the wireless local-area network is capable of using a simple access architecture to allow users to penetrate through so as to achieve an ideal state that one can travel everywhere with information around. A lot of disadvantages exist in the method of establishing communication between a small local PLC station and a central-control room. However, the wireless local-area-network architecture technology in the PLC communication is capable of displaying a lot of advantages. To use the wireless local-area network, construction is not so complex, particularly with respect to a newly built or rebuilt small control station and a radio antenna high in cost is not needed to buy either. Moreover, a complex programming problem is not needed to be taken into consideration and maintenance is significantly convenient. The proposed wireless local-area-network architecture method in the PLC communication is more practical compared with traditional methods.

The invention discloses a knife embryo processing device. The knife embryo processing device comprises an injection molding machine body and a knife mold, wherein the knife mold is located in a mold cavity, support legs are respectively arranged at the bottoms of the injection molding machine body and the knife mold, a feed pipe is connected to the top of the injection molding machine body, the injection molding machine body is connected with the knife mold through an injection molding pipe, an injection molding head is arranged between the knife mold and the injection molding pipe, a resistive heater is arranged in the mold cavity, and a mold cover is arranged on the top of the knife mold. The adjustment and transportation problems of formed steel are reduced, the whole processing is completed by one step, the production is simple, electricity and other cost are reduced, the effects of environmental friendliness and high production speed are achieved, and anodic oxidation treatment is performed on a workpiece, so that an oxidation film is formed on the outer surface of the workpiece in an anodic treatment mode for effective protection. The knife embryo processing device has the advantages of reasonable structural design, simplicity in operation, safety, practicability and the like and can be widely popularized and used.

The invention provides an LED touch stepless light-modulation color temperature adjusting driving power supply and a control method thereof. The power supply comprises a rectification circuit, a constant-current driving circuit, an LED diode string lamp, a touch light modulation circuit and a voltage stabilizing circuit. The input end of the voltage stabilizing circuit is connected with the constant-current driving circuit and the output end is connected with the touch light modulation circuit. The rectification circuit rectifies municipal power into direct current voltage and supplies the direct current voltage to the constant-current driving circuit. The constant-current driving circuit begins to work and then provides voltage to the voltage stabilizing circuit. The voltage stabilizing circuit stabilizes the working voltage into 5V direct current voltage and provides the 5V direct current voltage for the touch light modulation circuit so as to allow the touch light modulation circuitto be in a standby state. A human body sensing touch signal is input into the touch light modulation circuit and adjustment of the brightness and of the color temperature of the LED diode string lampis controlled through the touch light modulation circuit. According to the invention, the stability of the working voltage of the touch light modulation circuit is improved; the stability and the sensitivity of the adjustment of the brightness and of the color temperature are improved; occurrence probability of phenomena of adjustment lagging, malfunction and error-triggering is reduced; and reliability of the adjustment of the brightness and of the color temperature of the LED diode string lamp is improved.

The invention relates to a metal strip pure extension straightening used convexity variable tension roller system, which includes a mandrel, a roller sleeve, at least one seal cavity formed between the roller sleeve and the mandrel, and a hydraulic system, wherein an oil inlet pipeline communicated with the seal cavity is connected with a swivel joint through a pressure transmission device; an oil return pipeline communicated with the seal cavity is connected with the swivel joint; the swivel joint is connected to the hydraulic system through a pipeline. Pressure-bearing liquid is transmitted to the seal cavity through the hydraulic system, pressure of the pressure-bearing liquid is changed to cause elastic deformation of the roller sleeve and deformation of the cladding layer, so that the convexity of the roller surface is formed; under the joint function of the tension and the convexity of the roller surface, the shape of the metal strip is adjusted and improved; the convexity variable tension roller system integrates two functions of tension stretching in strip straightening and adjustment in horizontal plate shape, and the real-time and on-line operation with a unit can be carried out.

The invention is suitable for the technical field of medical apparatus and instruments, and provides an adjustable bent catheter. The sheath tube is provided with a bendable section, the first traction wire and the second traction wire are anchored on the bendable section of the sheath tube, and the driving mechanism is further arranged for pulling and releasing the first traction wire and the second traction wire; and when the driving mechanism pulls any one of the first traction wire and the second traction wire to enable the sheath tube to bend towards the side of the pulled traction wire, the other traction wire is correspondingly released, so that the bendable section of the sheath tube can be bidirectionally bent towards at least two directions of the sheath tube, and therefore, the bendable section of the sheath tube can be bidirectionally bent towards at least two directions of the sheath tube. According to the interventional therapy catheter, the requirement for interventional therapy on complex lesion positions such as blood vessel distortion and variable blood vessel opening positions can be fully met, the frequency that clinical operators need to adjust the catheter and replace the catheter for multiple times is greatly reduced, and therefore the operation is easier to operate, and meanwhile the risk caused by complications is reduced.

The invention provides a dynamic wireless intelligent charging system and method for an electric vehicle. The system and the method are used for wireless charging of the electric vehicle passing through a power transmission area. The system is characterized by including a control unit, a measurement unit, a signal receiving unit, a wireless charging unit, a supply wire and a power distribution unit, wherein the measurement unit and the signal receiving unit are connected with the control unit, the wireless charging unit is arranged on a road surface of the power transmission area, the supply wire is electrically connected with the wireless charging unit, and the power distribution unit is arranged on a connection circuit of the wireless charging unit and the supply wire. A first executionspeed is generated according to the average of a first real-time vehicle speed and a second real-time vehicle speed, and thus the accurate measurement of the speed of the electric vehicle is ensured.According to the first execution speed, the charging power of the wireless charging unit is adjusted, it is thus ensured that electric vehicles different in speed can be charged with the required electric quantity, and meanwhile excessive waste of electricity of the wireless charging unit is avoided. The system has the advantages that the system is convenient to use, maintenance is convenient, thepower supply effect is good, power is saved intelligently, and the system can simultaneously supply power to the vehicles.

The present invention discloses a PCB plug hole aluminum sheet making automatic scheduling system and method. The system comprises an information input module and a sorting module; the information input module is configured to obtain the product information corresponding to a production board before each production board enters a drilling process; and the sorting module is configured to obtain the time of different product information for comparison and sort the product information according to the sequential order of the obtained time, and the sorting result is the first aluminum sheet making sequence. The PCB plug hole aluminum sheet making automatic scheduling system and method obtain the product information before each production board enters the drilling to determine the processing time of the production board drilling, and perform sorting of the drilling of each production board to take as the sequential order of making scheduling and realize the synchronization correlation of the production board drilling sequence and the aluminum sheet making sequence so as to simplify the aluminum sheet making scheduling, effectively improve the effective yield rate of the plug hole processing procedure and improve the work efficiency.

Equipment for recirculating exhaust gas of an internal combustion engine having an exhaust gas turbocharger, especially a diesel engine, comprises: an exhaust gas recirculating device with a recirculating valve, connected with a gas exhaust pipe and an inlet pipe of the internal combustion engine; at least one air compressor for compressing the extracted exhaust gas and connected with the gas exhaust pipe; at least one exhaust gas pressure container used for storing the compressed exhaust gas and connected with the air compressor; a gas transmission device connected with the at least one exhaust gas pressure container through a valve and connected with the inlet pipe of the internal combustion engine and an air inlet; and a control device for controlling the equipment. A method for recirculating exhaust gas of an internal combustion engine comprises the following steps of: (S1) extracting exhaust gas from the internal combustion engine at a suitable gas extracting normal operating point of the internal combustion engine; (S2) compressing the extracted exhaust gas and fresh air; (S3) storing the compressed exhaust gas and the compressed fresh air; and (S4) reciculcating the exhaust gas and the fresh air stored at a determined ratio into the internal combustion engine.