46results about How to "Flexible and controllable" patented technology

The invention relates to a regulation and control testing device for preparation of bio oil through quick thermal cracking of biomass and belongs to the technical field of biomass recycling and energy equipment. The device comprises a fluidized bed pyrolysis reactor, a fixed bed thermal cracking reactor, two multi-path sampling valves, two gas chromatographs, a three-level condenser, three oil tanks and other parts. The device has the testing functions of quick pyrolysis, catalytic pyrolysis, on-line analysis and regulation and control, grading controlled condensation and the like, has a compact structure, works stably, can perform full component analysis and catalyst evaluation of pyrolysis gas, can reliably perform quantitative analysis and can effectively perform regulation and controltests of the preparation of the bio oil through quick thermal cracking of the biomass.

The invention provides an IGBT device with an integrated voltage sampling function, and belongs to the technical field of power semiconductor devices. A channel in which a JFET structure is introducedin a body region is in a normally-closed state, the device is in a forward turning-on state, and carriers are stored in the body region, so that an electric conductance modulating action is strengthened, and the saturated turning-on voltage drop of the device is reduced; in a turning-off state of the device, the body region plays a floating field limiting ring role, so that an electric field aggregation phenomena at the bottom of a groove gate is weakened, and the voltage withstand reliability of the device is improved; the grid electrode and the source electrode of the introduced JFET structure are connected with a peripheral control circuit and a sampling port respectively, a voltage sampling function can be realized by using a mapping reaction between the voltage change of the source electrode of the JFET structure and withstanding voltage of an IGBT, and the forward blocking characteristic of the device cannot be damaged while an electric isolation effect is reached; and the adjustment for voltage sampling rate is realized by changing the grid electrode bias voltage of the JFET structure, so that the requirement of different application conditions on voltage sampling is met. The IGBT device is simple in sampling structure, and is compatible with an existing technology.

The invention provides a hybrid DC circuit breaker for reducing reclosing impact and a control method. The hybrid DC circuit breaker for reducing reclosing impact comprises a main through current branch, a main breaking branch and a reclosing damping branch, wherein the reclosing damping branch comprises multiple damping units, the multiple damping units are serially connected, each damping unit comprises a power electronic switch and a damping resistor, the power electronic switch and the damping resistor are in parallel connection, and the reclosing damping branch and the main breaking branch are serially connected and are then parallelly connected with the main through current branch for reducing secondary impact on the system in the case of reclosing at permanent fault. The circuit breaker of the invention can not only minimize the reclosing impact, but also accurately detect permanent fault with a high resistance property and realize flexible reclosing.

A multi-beam x-ray generating device comprising a fixed field emission cathode having a plurality of fixed, independently controllable electron emitting pixels placed on the cathode in a predetermined pattern, facing the cathode and containing a predetermined pattern corresponding to the predetermined pattern of pixels Anodes with multiple focal points, and a vacuum chamber surrounding the cathodes and anodes are placed. Another structure is in the form of an x-ray generating device comprising a fixed field emission cathode having a planar surface on at least a portion of the planar surface with electron emissive material disposed in a parallel spaced relationship relative to the planar surface of the cathode and a grid electrode having a plurality of openings of different sizes, an anode opposite to and spaced from the cathode and having a plurality of focal points aligned with the electron emissive material, and a vacuum chamber surrounding the anode and cathode, wherein the grid electrode is operable such that The opening is manipulated to align or misalign at least one electron beam emitted from the cathode with at least one focal point. Related methods are also described herein.

The invention provides a highly available cluster system feign death solution based on both remote detection and power management, which belongs to the technical field of computer cluster. The state of a service operation node is detected through a service detection script, then the node is re-started by adopting the remote power management technology, and the service can be migrated to a backup node after re-start of the node, so that high availability and data security of the system are ensured, and the situation that the service operates at two nodes simultaneously after recovery of feign death of a host computer is avoided. Therefore, the operating stability of the whole system is guaranteed. The solution can be widely applied to the technical field of computer cluster.

The invention discloses a tissue engineering bracket applicable to human body organ construction, and the tissue engineering bracket has the bore diameter of 5 mu m-200 mu m, good bore connectivity and proper degradability, and can be applicable to growth of cells in the bracket. The invention further discloses a preparation method of the tissue engineering bracket applicable to human body organ construction. The preparation method comprises the following steps: firstly preparing sericin liquor, chitosan liquor and sodium glycerophosphate liquor into mixed liquor; then, converting the mixed liquor into a gel state; finally, obtaining the tissue engineering bracket by virtue of a process comprising freezing and drying, placing and softening, and high-pressure steam treating. By regulating the ratio of the sericin liquor, chitosan liquor and sodium glycerophosphate liquor or changing process conditions, the bore diameter size and degradation performance of the obtained tissue engineering bracket can be obtained in a controlled manner, so that the tissue engineering bracket satisfies the requirements of the tissue engineering bracket applicable to human body organ construction. The preparation method has the advantages of being gentle in reaction condition, simple in process and low in material cost, and is suitable for industrial scale-up production.

The invention relates to the field of polishing equipment and process, in particular to a honing magnetorheological polishing method and device. An electromagnet is positioned in a polishing head; a high gradient magnetic field is formed on the outer surface of the polishing head; magnetorheological polishing liquid flows out from an inner cavity of the polishing head to quickly change as a Bingham medium with bonding plasticity under the effect of the magnetic field; through adjustment of the magnitude of magnetic exciting current, the shearing yield strength of the magnetorheological polishing liquid and the pressure to the surfaces of workpieces under the effect of the magnetic field can be adjusted; the polishing head is driven by a speed adjusting motor to rotate at high speed; the workpieces are driven by a ball screw to perform a linear reciprocating motion; through relative movement of the polishing head and the workpieces, materials on the surfaces of the workpieces are removed; and the magnetorheological polishing liquid flowing through a polishing area is collected by a collecting device for impurity filtration, water feeding and full stirring to continuously participatein the magnetorheological polishing polishing process. The honing magnetorheological polishing method and device are excellent in polishing uniformity and suitable for efficient polishing of the inner walls of nonmagnetic pipe fittings such as stainless steel, ceramic and aluminum alloys.

The invention relates to a coffee carbon polyester fiber elastic carpet and a preparation method of the coffee carbon polyester fiber elastic carpet. The coffee carbon polyester fiber elastic carpet is characterized by comprising a coffee carbon polyester fiber layer, a dacron non-woven fabric layer and a micro air sac elastic glue layer. The coffee carbon polyester fiber layer, the dacron non-woven fabric layer and the micro air sac elastic glue layer are sequentially stacked from top to bottom. The micro air sac elastic glue layer is used for fixation of coffee carbon polyester fibers. The coffee carbon polyester fiber layer is inserted into the dacron non-woven fabric layer through a tufting big weaving machine in a weaving mode. The micro air sac elastic glue layer coats the back face of the dacron non-woven fabric layer. The coffee carbon polyester fiber elastic carpet has the functions of environment protection, deodorization, ultraviolet resistance and anion diffusion, and has the advantages of being high in elasticity and good in stability and bringing healthy and comfortable touch to consumers.

The invention provides a concrete distributing device and a prefabricated part production line. A large vehicle moves on a portal frame in the concrete distributing device, a small trolley moves on the large trolley, a first transmission mechanism is arranged on the small trolley and drives the first transmission shaft through a first speed reducer, so that first gears at the two ends of the firsttransmission shaft move on first rack rails of the large vehicle; the first transmission shaft is further rotatably connected with a first cross beam in a supported mode, the first cross beam is connected with a first travelling mechanism, and then the first gears are connected with the first rack rails in a meshed transmission mode to drive the first travelling mechanism to move along first travelling rails. The concrete distribution device is flexible and controllable in movement, large in distribution range and high in automation degree.

A method enhances photosensitivity of an optical element by disposing the optical element in a confinement chamber, introducing a hydrogen-rich atmosphere into the confinement chamber and regulating temperature of the hydrogen-rich atmosphere over a treatment time. The temperature regulation includes increasing the temperature of the hydrogen-rich atmosphere over a portion of the treatment time. A method for producing an optical element includes exposing the optical element to a hydrogen-rich atmosphere for a treatment period of time varying temperature of the hydrogen-rich atmosphere during the treatment period and irradiating the optical element with electromagnetic radiation.

The invention is suitable for the field of automobile accessory machining, and provides a water-cooling bending mould for automobile accessory machining. The water-cooling bending mould for automobile accessory machining comprises a male mould machining part and a female mould machining part which is arranged at the upper end of the male mould machining part and matched with the male mould machining part, the female mould machining part is communicated with a pressure machine through a pressure transmission shaft, and the control end of the pressure machine is connected with a controller. The water-cooling bending mould for automobile accessory machining has the advantages of being simple in structure, strong in practicability, flexible and controllable in pressing, good in springback preventing effect and good in cooling and shaping effect.

The invention provides a carton inserting tongue packaging robot capable of being adaptive to trays with various specifications and relates to carton packaging machinery, aiming at solving the technical problems that an existing tray type carton packaging machine has a relatively large size and the carton packaging machine is lack of commonality. According to the carton inserting tongue packaging robot, a packaging adaptive adjusting device is connected with a base supporting device; a carton side edge body plate packaging device is fixed on a sliding block of the packaging adaptive adjusting device; a carton inserting tongue guiding device and a carton cover plate folding device are fixedly connected onto a front-side air cylinder connecting plate and a rear-side air cylinder connecting plate of the carton side edge body plate packaging device; a carton lacing folding device is fixed on a carton side edge body plate folding device through a U-shaped connecting plate; a carton fixing device is fixedly connected onto the base supporting device; a grasping mechanical arm device is fixedly connected onto the base supporting device. A control system is composed of a pneumatic control system and a motor control system. The carton inserting tongue packaging robot provided by the invention can be adaptive to cartons with different specifications; folding and closing package of tray type cartons is finished; one carton inserting tongue packaging robot has a plurality of functions.

The invention provides a distributed energy storage control system and method. The distributed energy storage control system comprises an energy management system, a battery management system, an energy storage converter, a distributed power generation system and an energy storage system. During planned off-grid operation, the energy management system sends an off-grid operation instruction, the energy storage converter acts after receiving the instruction to enable the voltage frequency and the phase angle of the alternating current side to be consistent with those of the power grid, and thenthe energy storage converter sends an instruction to the PCC quick switch to enable the distributed power generation system to be separated from the power grid. During non-planned off-grid operation,the energy storage converter sends an instruction within a first preset time after detecting a power grid fault, so that the PCC quick switch is switched off within a second preset time. The method comprises an independent operation strategy, a reverse power protection strategy, a demand control strategy, a peak clipping and valley filling strategy and a load tracking strategy. Storage is carriedout when electric energy is excessive and cannot be consumed, discharging is carried out when the electric energy is insufficient, peak clipping and valley filling are achieved, and flexibility and controllability are truly achieved.

The invention relates to a preparation method for a shape memory material based on thermoplastic vulcanized rubber. The preparation method comprises the following steps: (1) fixing a sample strip of ethylene-acrylic acid copolymer / chloroprene rubber blended type thermoplastic vulcanized rubber on a simple stretching clamp, and then preheating the sample strip; (2) applying external force to enablethe preheated sample strip of the thermoplastic vulcanized rubber to deform, afterwards, quickly immersing the sample strip in an ice water mixture for shaping, and recording the distance between scale lines; (3) removing the external force, naturally standing for 24 hours at the room temperature, and recording the distance between the scale lines; (4) arranging the thermoplastic vulcanized rubber in the step (3) in a heating environment, and recording the distance between the scale lines; and (5) calculating the shape fixed rate (SF) and the deformation recovery rate (SR) of the thermoplastic vulcanized rubber. The shape memory material based on the thermoplastic vulcanized rubber prepared by the invention has the advantages of being low in hardness, good in flexibility, easy to shape, recyclable and low in switch temperature and is expected to be applied to sensors and self-assembly equipment.

The invention discloses a flexible mechanical arm device capable of actively and passively adjusting rigidity. A first electromagnet fixed to one end of a first mechanical arm is included and arrangedin a cylinder cavity. A second electromagnet repelling to the first electromagnet is arranged in the cylinder cavity and arranged at one end of a second mechanical arm. A spline-shaped elastic element is arranged at the other end of the second mechanical arm and connected with a second bevel gear through a first bevel gear. The face, away from the second mechanical arm, of the second bevel gear is connected with one end of a spring. A center shaft is arranged on the axis of the spring, one end of the center shaft is connected with the second bevel gear, and the other end of the center shaft is connected with a harmonic reducer. The other end of the spring is arranged on the harmonic reducer. The harmonic reducer is arranged on a third mechanical arm through a brushless direct current motor. According to the flexible mechanical arm device, the mechanical arm structure is optimized, and changes of rigidity from zero to infinite can be achieved.

The invention provides a concrete distributing device and a prefabricated part production line, wherein a large trolley of the concrete distributing device moves on a gantry, a small trolley moves onthe large trolley, a first transmission mechanism is arranged on the large trolley and drives a first transmission shaft through a first speed reducer to make the gears at the two ends of the first transmission shaft move on a rack track of the gantry, meanwhile, the first transmission shaft is also rotatably supported and connected with a second cross beam, and the second cross beam is connectedwith a first traveling mechanism, so that the gear and the rack track are meshed to drive the first traveling mechanism to move along a first traveling track. The concrete distributing device has theadvantages of flexible and controllable movement, large distributing range and high automation degree.

The embodiment of the invention provides a video playing method and a terminal, and relates to the technical field of communication. Whether the terminal is still or not can be determined by monitoring whether data information of a gravity sensor and a geomagnetic sensor is changed or not; and, when the terminal is still till the appointed duration is up, a currently played video is stopped. The method comprises the steps of: when a video is played in an appointed mode, turning off the backlight source of a screen, and obtaining the data information of the gravity sensor and the geomagnetic sensor in real time; when the data information is not changed, starting to time; and, when the appointed duration is up, stopping playing the video. The technical scheme provided in the embodiment of the invention is suitable for the video playing process of the terminal.

The invention relates to sport equipment for on-ice training or matches or entertainment, in particular to an on-ice dragon boat.The on-ice dragon boat comprises a boat body and a sliding device.The sliding device comprises a fixed-direction slider set and a steering and braking slider set.The fixed-direction slider set comprises a connecting device, a fixing and supporting device, dampers and sliders, wherein the fixing and supporting device is installed on the lower portion of the boat body through the connecting device, the sliders are installed on the fixing and supporting device, and the dampers are installed between the sliders and a main board.The steering and braking slider set comprises a connecting device, a steering supporting device, a braking device, dampers and sliders, wherein the steering supporting device is installed on the lower portion of the boat body through the connecting device, the sliders are installed on the lower portion of the steering supporting device, the dampers are installed between the sliders and a main board, and the braking device is installed on the steering supporting device and the boat body.The on-ice dragon boat has the advantages of being novel in structure, easy and convenient to machine, convenient to assemble, flexible to operate, high in safety, suitable for people of all ages, capable of integrating entertainment and bodybuilding and the like.

The invention aims to provide a high-pressure common-rail oil injector based on electromagnetic proportional valve oil injection rule flexibility and controllability. A pressure storage cavity and an oil return path are arranged in an oil injector body, an additional electromagnetic proportional valve liquid return cavity is arranged below an additional electromagnetic proportional valve part, an electromagnetic valve oil return cavity is arranged below an electromagnetic valve part, a control cavity is arranged above an oil nozzle part, a needle valve reset spring cavity is formed in the upper portion of an oil nozzle, an oil containing groove is formed in the middle of the oil nozzle part, the pressure storage cavity communicates with the control cavity and the oil containing groove, the control cavity communicates with a control cavity additional oil return path, and the pressure storage cavity communicates with the control cavity through a control cavity oil inlet throttling hole. According to the oil injector, opening of the additional oil return path can be controlled at any time in the oil injection process to accelerate oil return, the opening degree of the control cavity additional oil return path can be controlled by controlling signals input into an additional electromagnetic proportional valve coil, and therefore a slow-first and fast-second oil injection rule curve can be further adjusted, and in the working process, flexibility and controllability of the oil injection rule can be realized.

The invention discloses a modified polyester composite filament durable elastic woolen sweater and a preparation method thereof. PET and PTT polyester composite filaments and wool or wool blended spun yarns are doubled to form composite yarns serving as a core, and the PET and PTT polyester composite filaments are stock solution colored or white self-crimping filaments; and the wool fabric has 10-40% tensile elasticity in the warp and weft directions. The woolen sweater has the advantages of stable and lasting elasticity, strong woolen feeling and simplicity and convenience in processing. The wool fabric with lasting elasticity, controllable elasticity, hank dyeing, wool feeling, strong force and high cost performance can be provided, and aiming at the problems that the existing wool spandex elastic fabric is easy to loosen and expose white, and the wool / high-temperature dyeable polyester elastic filament fabric is difficult to dye and easy to dye, the low-temperature dyeable self-crimping composite elastic white filament is adopted, through a Sirofil spinning or doubling twisting mode, by controlling the off-machine size of a flat knitting machine and the temperature, time and bath ratio of drying and washing, and by combining key process control such as spinning, hank dyeing and the like, the product is prepared.

The preparation method comprises the following steps: by taking chinlon multifilament as ground warp and piezoelectric monofilament as wool warp, weaving warp yarns, chinlon weft yarns and conductive weft yarns into the woven belt with looped piles according to towel tissues, cutting the piezoelectric monofilament into piezoelectric short fibers, and performing indentation treatment to enable the piezoelectric short fibers to protrude out of the surface of the woven belt, thereby obtaining the power-generating velvet woven belt for night indication. Connecting the conductive weft yarns with the LED lamp beads to obtain a woven belt; the piezoelectric monofilament is rectangular on the whole and comprises an elastic wrapping layer II, a piezoelectric film II and a conductive yarn II; the piezoelectric film II is fixed in the elastic wrapping layer II, and the section of the piezoelectric film II is wave-shaped; the central axis of the conductive yarn II is parallel to the length direction of the piezoelectric monofilament, is in contact with the trough area of the piezoelectric film II and is partially exposed out of the elastic covering layer II, and the conductive yarn II is spread all over the upper and lower surfaces of the piezoelectric film II; the areas, exposed out of the conductive yarns II, of the piezoelectric monofilaments are in contact with the conductive wefts; the method disclosed by the invention is simple, and the prepared product can generate voltage through the deformation of the piezoelectric short fibers.

The invention discloses a testing device for measuring frictional characteristics of a polluted airport runway. The testing device comprises a base frame, a radial loading mechanism, a driving mechanism, aircraft tires, a disc torque sensor, a working platform, a temperature control mechanism and a speed displacement sensor, the radial loading mechanism, the driving mechanism, the aircraft tires and the disc torque sensor are installed on the base frame, and the working platform, the temperature control mechanism and the speed displacement sensor are located below the base frame. The testing device has the advantages that friction characteristics of a polluted runway when an airplane slides on the runway under different loads, different speeds and different pollutant states can be simulated, so that a friction mechanism at an airplane wheel-different pollutant interface is revealed, and the available friction level at the airplane wheel-different pollutant interface under different operation parameters is obtained. The friction coefficient and the slip rate between the aircraft tires and the runway are measured, and the friction characteristics of the runway are summarized, the measurement condition is flexible and high in controllability, the measurement efficiency is high, and the comparison is facilitated, so that the accuracy of the measurement result can be improved.

The invention provides a conductive elastic non-woven material and a preparation method thereof, which are used for solving the technical problems of poor heating performance, complex preparation process, low softness and poor wearing comfort of heating fabrics, the conductive elastic non-woven material comprises a porous membrane and a superfine fiber aggregate, the porous membrane and the superfine fiber aggregate are embedded with each other, the superfine fiber aggregate comprises micro-nano conductive whiskers and a polyolefin elastomer, the porous membrane is prepared by drying a conductive coating, and the conductive coating comprises a graphene dispersion liquid, waterborne polyurethane, a wetting agent and water. The conductive elastic non-woven material prepared by the invention not only has excellent thinness, softness, elasticity and elasticity, but also has controllable conductivity; the heating device is applicable to multiple fields such as intelligent wearable, medical treatment and public health and industry, and is also applicable to intelligent heating; meanwhile, the preparation method has the characteristics of short process flow, high production speed and low cost, and is suitable for large-scale industrial production.

The invention relates to a coffee carbon polyester fiber elastic carpet and a preparation method of the coffee carbon polyester fiber elastic carpet. The coffee carbon polyester fiber elastic carpet is characterized by comprising a coffee carbon polyester fiber layer, a dacron non-woven fabric layer and a micro air sac elastic glue layer. The coffee carbon polyester fiber layer, the dacron non-woven fabric layer and the micro air sac elastic glue layer are sequentially stacked from top to bottom. The micro air sac elastic glue layer is used for fixation of coffee carbon polyester fibers. The coffee carbon polyester fiber layer is inserted into the dacron non-woven fabric layer through a tufting big weaving machine in a weaving mode. The micro air sac elastic glue layer coats the back face of the dacron non-woven fabric layer. The coffee carbon polyester fiber elastic carpet has the functions of environment protection, deodorization, ultraviolet resistance and anion diffusion, and has the advantages of being high in elasticity and good in stability and bringing healthy and comfortable touch to consumers.

The invention discloses a transformer substation intelligent anti-misoperation method based on a depth architecture. The method is characterized in that through configuring a device description format, configuring the logic symbol relationship, configuring the goose transceiving relationship, configuring a lock scheme and the device corresponding relationship, and the like, the relationship amonga station control layer, a spacing layer, a process layer and three-layer locking logic is enhanced, and the relationship is uniformly displayed and operated on station control layer equipment in a graphical interface mode, so substation workers can conveniently master the three-layer locking logic.

The invention provides a multifunctional intelligent fan lamp. The multifunctional intelligent fan lamp comprises a fan unit, a lighting unit and an intelligent control system. Compared with the prior art, due to the adoption of the modular combination design and the arrangement of the fan blade linkage mechanism, the fan blades can be hidden, the overall decoration effect is good, the extension and retraction of the fan blades are more flexible and controllable, the fan blades are not clamped, due to the arrangement of the wind ring control unit, the ceiling fan module has the functions of air drying, blowing and ventilation, and the use range and period are increased; due to the arrangement of the fan blade buffers, all the wind rings can create vivid natural wind; due to the fact that the intelligent control system is arranged, random switching between an automatic control mode and an active control mode is achieved, short-range control can be achieved through a remote controller or a voice password, remote control can be achieved through a mobile phone APP, automatic control can be achieved through a detector, and multi-scene application can be generated through an interconnection mode; the design of saving space, having powerful functions and having multiple purposes makes people feel fresh and new.

The invention discloses a flexible mechanical arm device capable of actively and passively adjusting rigidity. A first electromagnet fixed to one end of a first mechanical arm is included and arrangedin a cylinder cavity. A second electromagnet repelling to the first electromagnet is arranged in the cylinder cavity and arranged at one end of a second mechanical arm. A spline-shaped elastic element is arranged at the other end of the second mechanical arm and connected with a second bevel gear through a first bevel gear. The face, away from the second mechanical arm, of the second bevel gear is connected with one end of a spring. A center shaft is arranged on the axis of the spring, one end of the center shaft is connected with the second bevel gear, and the other end of the center shaft is connected with a harmonic reducer. The other end of the spring is arranged on the harmonic reducer. The harmonic reducer is arranged on a third mechanical arm through a brushless direct current motor. According to the flexible mechanical arm device, the mechanical arm structure is optimized, and changes of rigidity from zero to infinite can be achieved.

The invention discloses a tissue engineering scaffold suitable for the construction of human organs. The pore diameter is 5-200 μm, the pore penetration is good, the degradability is appropriate, and the scaffold is suitable for the growth of cells therein. The invention also discloses a preparation method of the tissue engineering scaffold suitable for human organ construction. The preparation method is to prepare a mixed solution of sericin solution, chitosan solution and sodium glycerophosphate solution, and then mix the The solution is converted into a gel state, and then freeze-dried, placed back to soften, and treated with high-pressure steam to obtain a tissue engineering scaffold. By adjusting the ratio between the raw material sericin solution, chitosan solution and sodium glycerophosphate solution, or changing The process conditions can control the pore size and degradation performance of the obtained tissue engineering scaffold, so that it can meet the requirements for tissue engineering scaffolds for human organ construction; the preparation method has the advantages of mild reaction conditions, simple process, and low raw material cost, and is suitable for Industrialized scale-up production.