113 results about "Flexible fiber" patented technology

The invention discloses a traditional Chinese medicine tea drink formula helpful for slimming and softening waist, and relates to the technical field of traditional Chinese medicine tea drinks. Comprising 35-70 parts of a softening and firming compound and 3-6 parts of a seasoning raw material, the flexible fiber firming compound is prepared from a basic shaping group, a tendon-softening and collateral-activating group and an active plant extraction group through a three-order synergistic conversion process, wherein the basic shaping group accounts for 60%-70% of the total weight of the compound, the tendon-softening and collateral-activating group accounts for 20%-25% of the total weight of the compound, and the active plant extraction group accounts for 10%-15% of the total weight of the compound; the three-stage synergistic conversion process is specifically a process for cooperatively treating the raw materials through three stages of gradient extraction, enzymolysis and fermentation in sequence. According to the invention, the fiber-softening and skin-firming compound element is arranged, so that multiple effects of reducing fat, shaping, softening tendons, activating collaterals, firming and nourishing skin and the like can be considered, and the problems that in the prior art, the formula raw material combination is single, only one-dimensional conditioning is focused, and the applicable crowd is limited are solved; meanwhile, collaborative conditioning on complex problems such as waist fat accumulation, fascia stiffness and unsmooth qi and blood can be achieved, and the overall improvement effect is improved.

The present application belongs to the field of thermal insulation materials, and particularly relates to a flexible fiber paper and a preparation method thereof and a fire-resistant cable wrapping material. The flexible fiber paper comprises first fibers which are porous silica fibers, and the diameter of the first fibers is 300 nm to 2000 nm, and the porosity of the flexible fiber paper is 85% to 99.6%. The flexible fiber paper has high flexibility, and no fold marks are generated after 500 times of 180-degree bending, and the flexible fiber paper has high thermal insulation performance.

The application provides a ceramic-based aerogel and a preparation method, and belongs to the technical field of aerogel materials. The ceramic-based aerogel takes hollow structure, alumina flexible fiber with good flexibility and porous powder as main raw materials, and can generate fiber gel in situ under the action of a catalyst, so that the flexibility of the ceramic-based aerogel is improved, the thermal conductivity is greatly reduced, the ceramic-based aerogel has good heat absorption effect and excellent fireproof and heat insulation performance, and has good heat insulation effect in low-temperature and high-temperature fields. The synergistic effect of the alumina flexible fiber and the silicon dioxide aqueous solution can enhance the mechanical strength and flexibility of the ceramic-based aerogel, and improve the mechanical ability. The use of a surface treatment agent can enable the ceramic-based aerogel to have good waterproof ability. The synergistic effect of the alumina flexible fiber with low thermal conductivity and the light shielding solvent can enable the ceramic-based aerogel to have better heat absorption effect and excellent fireproof and heat insulation performance. The preparation method has simple process and low cost, and is suitable for large-scale production.

The invention discloses a production technology of a jute environment-friendly coir mat with a three-dimensional structure, and relates to the technical field of jute coir mat production.The production technology comprises the following steps that S1, raw material pretreatment is conducted, specifically, raw jute is sequentially subjected to three-stage degumming including anionic surfactant solution soaking, pectinase treatment, lignin peroxidase treatment and caustic soda boiling-off, performing countercurrent cleaning and vacuum drying to obtain flexible fibers; s2, mixing fibrils: mixing the pretreated jute fibers with palm fibers and ramie fibers in proportion to form a mixed fiber raw material; s3, opening and carding: performing loosening treatment on the mixed fibers by a bidirectional opener, and preparing flocculent fibers by a carding machine; the flocculent fiber filaments are sprayed to a lapping machine through an exhaust fan, the lapping machine reciprocates at the constant speed of 1.5-2.5 m / s in the direction perpendicular to the spraying direction, the fiber flexibility can be improved, a three-dimensional supporting structure can be constructed, and a formaldehyde adding source can be eliminated.

Methods include functionalizing, into a compressible pressure varying electrical conductance device, a portion of a compressible nonwoven material (CNM) cushion. A process includes forming within a three-dimensional (3D) target region of the CNM cushion a columnar distribution of non-solidified conductive polymer, and converting the columnar distribution of non-solidified conductive polymer into a columnar compressible pressure varying electrical conductance structure. The columnar distribution of non-solidified conductive polymer extends along a column axis. Forming the columnar distribution includes injecting into at least a portion of the 3D target region a liquid carrying conductive polymer in suspension. The columnar compressible pressure varying electrical conductance structure includes mutually separated masses of solidified conductive polymer respectively supported by mutually separated flexible fibers of the compressible nonwoven material. Optionally, forming the columnar distribution of non-solidified conductive polymer includes a first injection followed by partial drying, and a second injection.

The invention discloses a three-dimensional network structure magnetic fiber carrier reinforced micro-plastic magnetic separation removal method, which is characterized in that Fe3O4 nanoparticles are selectively precipitated among sepiolite fiber bundle layers by controlling a coprecipitation process, and a wedging effect is generated to realize controllable stripping of fiber bundles, so that a three-dimensional network structure magnetic carrier is formed; a mechanical interlocking structure is formed on the surface of the flexible fiber and the micro-plastic, and the pH of a water body is self-adaptively regulated and controlled through the amphoteric ionization characteristic of silicon hydroxyl; enabling the magnetic aggregate suspension to sequentially pass through a multi-stage gradient magnetic field consisting of a pre-magnetization field, a main separation field and a fine scavenging field, and controlling the flow rate to enable the aggregate to form a stable filter cake layer on the surface of a magnetism gathering medium, so as to realize efficient separation of the micro-plastic; and the magnetic gathering medium capturing the aggregate is subjected to heat treatment, so that the micro-plastic is thermally decomposed, the magnetic carrier is directly recycled, the magnetic performance is improved, and regeneration reinforcement is realized. The micro-plastic removal rate reaches 99% or above, the performance is stable after multiple cycles, and the method is suitable for treating various micro-plastic-containing water bodies.

The application discloses a degradable fiber electrode fabric for three-dimensional electrogastrography monitoring and a preparation method thereof. The preparation method comprises the following steps: subjecting degradable polyglycolide fibers to plasma treatment, and evaporating a gold layer on the polyglycolide fibers; in-situ polymerizing a polypyrrole conversion layer on the surface of the gold layer; in-situ reducing gold nanoparticles on the surface of the polypyrrole conversion layer; coating a poly(1,8-octyleneglycol citrate) solution on the surface of the gold nanoparticle layer to form an insulation layer, and obtaining a degradable flexible fiber electrode; using a knitting technology to synchronously knit the flexible fiber electrode and the polyglycolide fibers to form a three-dimensional flexible fabric structure, removing the insulation layer on a target area of the flexible fabric structure to expose a conductive layer, and obtaining the degradable fiber electrode fabric. The fiber electrode fabric prepared by the application can realize full-curve fitting of a gastric serosal surface, does not need external fixation, and can be used for long-term, stable and real-time multi-dimensional gastric electrophysiological signal acquisition.

This invention discloses a self-adhesive hydrogel photoelectrode, array, device, application, and evaluation method. The self-adhesive hydrogel photoelectrode comprises a self-adhesive hydrogel optical fiber and at least one flexible fiber electrode. The optical fiber has a core-skin structure; the skin is composed of adhesive polymers such as polyvinyl alcohol, polyacrylic acid, and polydopamine, while the core is a transparent hydrogel. The flexible fiber electrode comprises conductive materials such as graphene oxide, carbon nanotubes, and polypyrrole. The flexible fiber electrode is directly integrated onto the surface of the optical fiber through the adhesion of the fiber skin, forming a heterogeneous structural unit integrating optical transmission and electrical conduction. This technology relies on a dynamic interface bonding mechanism to achieve stable and reconfigurable heterogeneous integration in a humid environment. The device simultaneously possesses low optical loss, high conductivity, strong tissue adhesion, and excellent biocompatibility, making it suitable for implantable neural modulation and signal acquisition, in vitro testing, and interface reliability assessment.

The application discloses a kind of corrosion-resistant waterproof coating and preparation method thereof, it is related to protective coating technical field.The impact force generated by spraying process in the application, so that ceramic flexible fiber is embedded in the small pore or uneven place of substrate surface, and three-dimensional network structure is formed on the surface, so as to realize the corrosion resistance and waterproofness of coating, simultaneously, by acting force, promote titanium sol and metal substrate combination, reaction, and then passivate metal surface, further enhance corrosion resistance and waterproofness, then by high-temperature treatment, form nanoscale rough surface on coating, so that substrate realizes hydrophobicity, so as to enhance the corrosion resistance, waterproof effect of coating, finally, spray epoxy resin, form ultra-thin encapsulation coating, so that rough hydrophobic structure is not influenced, and then improve corrosion resistance and waterproofness.

A preparation method for a separator for lithium thionyl chloride batteries. The preparation method comprises the following steps: (1) adding inorganic fibers and flexible fibers to water, and mixing and dispersing same to obtain a mixed fiber suspension; (2) subjecting the mixed suspension to slurry spreading, and forming same into a wet paper sheet; and (3) applying an adhesive to the surface of the wet paper sheet, and drying same to obtain a separator for lithium thionyl chloride batteries. Inorganic fibers are used as the main material for the battery separator, thereby ensuring the safety performance of the battery separator in a high-temperature environment. Moreover, the battery separator can absorb excess electrolyte to participate in reactions at positive and negative electrodes of a battery, thereby ensuring that the battery has good charging and discharging performance. Furthermore, flexible fibers, an adhesive and inorganic fibers are combined to form the battery separator, wherein the flexible fibers and the adhesive can work synergistically, improving both the strength and ductility of the battery separator, thereby significantly enhancing the assembly capability of the battery separator.

The invention discloses a high-density flexible optical fiber ribbon micro-cluster cable containing a hollow-core optical fiber and a multi-core optical fiber and a preparation method of the high-density flexible optical fiber ribbon micro-cluster cable, and belongs to the technical field of optical cables. The high-density flexible optical fiber ribbon micro-cluster cable comprises an optical fiber unit and an outer sheath arranged on the periphery of the optical fiber unit, and the outer sheath is divided into a first sheath part and a second sheath part in the radial direction; reinforcing pieces are embedded in the first sheath parts, the first sheath parts are arranged in pairs and arranged on the two sides of the optical fiber unit respectively, the two first sheath parts are connected through the second sheath parts, and the shrinkage rate of sheath materials in the first sheath parts is larger than that of sheath materials in the second sheath parts. According to the invention, by controlling the shrinkage rate of the circumferential sheath material of the outer sheath, the shrinkage rates of the sheath materials at different parts are different, so that the internal optical fiber unit is prevented from being extruded, and the probability of fiber breakage in the production of the micro-cluster cable is reduced. According to the invention, a conventional extrusion mode is adopted for molding, the problem of optical fiber breakage caused by a vacuum sizing process adopted by a conventional micro-cluster cable is avoided, the molding process of the micro-cluster cable is simplified, and the production efficiency of the optical cable is improved.

The application discloses a wound dressing and a preparation method and application thereof; the wound dressing comprises polymer flexible fibers and cobalt-iron layered double hydroxide nanosheets dispersed in the polymer flexible fibers; the cobalt-iron layered double hydroxide nanosheets contain a cobalt vacancy structure in a crystal lattice. The wound dressing has a strong "electron capture effect" due to the cobalt vacancy. The wound dressing can physically capture electrons on a respiratory transmission chain of a pathogenic bacterial cell membrane, interferes with transmembrane proton transfer and ATP synthesis, directly kills the bacteria through "metabolic starvation", and further has a broad-spectrum physical bactericidal function independent of antibiotics. The wound dressing has excellent superoxide dismutase-like and catalase-like activities, can long-acting capture and remove active oxygen such as superoxide anions and hydrogen peroxide in an inflammatory microenvironment of a wound, promotes macrophages to polarize to a M2 phenotype for promoting repair, and has anti-inflammatory and pro-angiogenic functions.

The present application relates to the field of oil and gas field development engineering, disclose a kind of intelligent optimization method for discrete element contact parameters of proppant particle and flexible fiber mixture, comprising: based on the principle of injection method angle of repose experiment, build micro funnel device, reduce the scale of experiment under the premise of keeping the original size of material, improve the efficiency of calculation;Adopt "ball column chain + joint" fiber model, coupling JKR adhesion model represents the interfacial adhesion between particles, establish high-precision discrete element simulation model;Through Plackett-Burman, steepest climbing experiment screening key influencing factors, for the problem that each factor and angle of repose is nonlinear mapping relationship, construct GA-BP model, combine GA algorithm optimization, preferred parameter combination, compare the results of discrete element simulation and laboratory test results, verify the accuracy of contact parameters.The present application solves the problem that the existing method is difficult to calibrate mixture, improves the precision and efficiency of parameter calibration, and is helpful to the research and development of hydraulic fracturing process.

The invention discloses a preparation method and application of a multi-electrode photoelectric flexible optical fiber, and belongs to the technical field of multifunctional flexible fiber preparation. Flexible material granules are fused to serve as a cladding, a conductive composite material prepared through a co-extrusion process serves as an electrode, a prefabricated body is assembled, and the multi-electrode photoelectric flexible optical fiber is obtained through hot stretching. The tensile elongation of the flexible optical fiber is up to 685%. By stretching the multi-electrode photoelectric flexible optical fiber, a resistance signal becomes larger, a light intensity signal becomes smaller, monitoring of the bending direction can be achieved through resistance changes of different electrodes, and the bending recovery process is reversible. The multi-electrode photoelectric flexible optical fiber sensor can simultaneously monitor stretching and bending directions in two dimensions of electric signals and optical signals.

The invention relates to the field of turners, and discloses a sludge resource reutilization compost workshop turner which comprises a rotating shaft arranged in the middle of a mounting seat and a maintenance assembly arranged on one side of the rotating shaft, and the maintenance assembly mainly comprises a wheel disc, a fixed friction plate, a movable friction plate, a hoop, a blade and a movable plate. According to the turning and throwing machine for the sludge resource reutilization composting workshop, the two friction plates form a grinding disc, flexible fibers are efficiently treated in a friction grinding mode, the grinding disc is arranged at the position, close to one side of the rotating shaft, of the interior of the mounting base, and the grinding disc is arranged at the position, close to one side of the rotating shaft, of the interior of the mounting base. The defect that traditional cutting is prone to being stuck is overcome. Meanwhile, the anti-winding function and the self-cleaning function are combined, and the brake safety function is achieved when the friction plate is closed; the blade and the movable plate automatically clean adhered materials through vibration, the saw-tooth cutting edge cuts off residual fibers, an anti-winding self-cleaning closed loop of crushing, shaking off and cutting off is formed, and manual intervention is reduced.

The invention discloses a flexible thermal control coating with high thermal insulation performance. The flexible thermal control coating comprises a flexible high polymer, a functional filler, a thermal insulation filler, flexible fibers, a film-forming agent, a dispersing agent and a curing agent. The invention also discloses a preparation method of the flexible thermal control coating, which comprises the following steps: adding the flexible high polymer, the functional filler, the film-forming agent and the dispersing agent into the organic solvent to obtain a uniform solution; carrying out surface modification on the flexible fibers; adding a heat-insulating filler and surface-modified flexible fibers into the uniform solution to obtain a coating; and adding a curing agent into the coating, and coating the surface of a base material with the coating to obtain the flexible thermal control coating. The heat insulation coating can be applied to a movable cabin door of a heaven and earth round-trip aircraft, in daily work of the aircraft, the coating can be used as a low-absorption and high-emission coating, the surface temperature of the aircraft is reduced, and when the movable cabin door of the aircraft is opened, the flexible heat insulation coating on the outer surface of the cabin door does not crack or fall off.

A battery pack shielding system comprises a battery pack structure featuring a cutout, a flexible opening spanning the cutout, and a connecting assembly extending through the flexible opening and the cutout. The flexible opening may incorporate a variety of flexible strands or flaps configured to bend to conform to the connecting assembly.

The application provides a numerical method for simulating fiber-containing proppant flowback, and the method comprises the following steps: establishing a simplified fracture network grid model for flowback, setting a fracture fracturing fluid inlet and a fracturing fluid outlet; setting a proppant particle model, using a Bonding V2 model to establish a flexible fiber; according to a set mass ratio, stacking the fiber and the proppant in the fracture; in a finite element software, setting a flow equation, fracturing fluid material properties and fracture inlet and outlet flow rate parameters; reading a coupling file, starting to simulate flowback, and post-processing the calculation results. Through the method, the sand stabilizing and sand fixing capacities of different fiber lengths, different fiber concentrations and different fiber mixing ratios can be studied, and the method has the advantages of simple operation and high calculation efficiency.

The invention provides an active pneumatic control system based on an electroactive polymer fiber array and a miniature flight detection device, belongs to the technical field of miniature robots and intelligent materials, and aims to solve the problem that a passive wind power aircraft cannot be actively controlled. The control system comprises a fiber array composed of a plurality of independent EAP flexible fibers, and a control module capable of applying accurate electric signals to specified fibers. The electric signals drive the fibers to generate reversible deformation, so that the collective pneumatic form of the fiber array is changed. The detection device mainly comprises a detector main body, a fiber system and an attitude control system. The fiber system is composed of a fiber array and is unfolded in a natural state to form a windward sail face providing pneumatic elasticity. The attitude control system symmetrically or asymmetrically drives the fiber array through a control module, changes the three-dimensional configuration of the sail surface, adjusts the aerodynamic characteristics in real time, and achieves the precise control of the flight height and direction. The passive aircraft is suitable for a deep space exploration environment.

The invention relates to the technical field of environmental engineering, in particular to an ecological bank protection material and a manufacturing method thereof. The ecological bank protection material is prepared from the following substances in parts by mass: 35 to 50 parts of geopolymer gel material, 5 to 15 parts of charcoal functional filler, 3 to 8 parts of microbial curing agent, 1 to 3 parts of plant fiber, 30 to 45 parts of multi-graded aggregate, 2 to 3 parts of binder, 1 to 2 parts of urea and 0 to 8 parts of sea-grass-imitating flexible fiber bundle. Meanwhile, the invention further provides a method for preparing the ecological bank protection material, and the prepared ecological bank protection material is high in compressive strength, low in shrinkage rate, good in permeability coefficient and excellent in performance and has very good application value.

The application belongs to the field of flexible fiber preparation, and provides a zirconia-based fiber membrane and a preparation method thereof, a hydrophobically modified zirconia-based fiber membrane and a preparation method and application thereof. The preparation method of the zirconia-based fiber membrane comprises the following steps: (1) mixing an A sol containing a zirconia precursor-lanthanum salt, a B sol containing an aluminum oxide precursor and a template agent to obtain a spinning solution; (2) performing airflow-assisted electrospinning on the spinning solution to obtain a zirconia-based precursor nanofiber membrane; and (3) drying and calcining the zirconia-based precursor nanofiber membrane to obtain a zirconia-based fiber membrane. The method is simple to operate, and the obtained zirconia-based fiber membrane has the characteristics of high thermal stability.

This utility model relates to the field of fire-resistant cable technology and discloses a flexible fiber fire-resistant cable, including an outer sheath. An oxygen-barrier mineral fire-resistant mud is disposed in the middle of the inner side of the outer sheath. An alkali-free glass fiber wrapping tape is disposed inside the oxygen-barrier mineral fire-resistant mud. A mineral filler is disposed in the middle of the inner side of the alkali-free glass fiber wrapping tape. Multiple ceramicized silicone rubber outer insulations are disposed inside the mineral filler. A mica tape fire-resistant layer is disposed in the middle of the inner side of the ceramicized silicone rubber outer insulation. The conductor cross-sectional area of ​​this utility model is [square mm], and the cable has a single-core structure. It can form a porous, highly foamed thermal resistance material at high temperatures. Therefore, this cable has excellent fire resistance, high flexibility, and good electrical transmission performance. It can work stably for a long time in complex environments and meet daily use needs.

The application provides a functional fiber-based composite foam material and a preparation method thereof, and belongs to the technical field of inorganic fiber composite materials. The preparation method comprises the following steps: providing a basalt fiber-based foam base; providing an impregnating solution in the form of a solution and containing monolayer MXene nanosheets; contacting the basalt fiber-based foam base with the impregnating solution containing monolayer MXene nanosheets, so that the basalt fiber-based foam base is impregnated with the impregnating solution containing monolayer MXene nanosheets; and drying the obtained composite foam loaded with MXene nanosheets, to obtain the functional fiber-based composite foam material with a density of 9-15 mg / cm 3 The method is prepared at low temperature and has low energy consumption. A layered rigid framework composed of flexible fiber chains and rigid sheet-shaped MXene is constructed. The prepared composite foam material has the characteristics of good mechanical properties, low density, compressibility and resilience, excellent sound absorption and heat insulation performance, and high specific shielding effectiveness.

The invention relates to the technical field of wood-plastic materials, and particularly discloses a wood-plastic composite material applying a glass fiber reinforced plastic powder difficult-to-recover material and a preparation method. The wood-plastic composite material comprises the following raw materials in parts by weight: 20-40 parts of polymer coated glass fiber reinforced plastic powder, 20-35 parts of a polyethylene material, 15-30 parts of a polypropylene material, 15-25 parts of wood flour, 3-8 parts of toughening fibers, 5-10 parts of polyethylene grafted maleic anhydride, 1-2 parts of a lubricant and 0.3-0.8 part of an antioxidant. By forming a multi-phase composite reinforced structure, when the material is stressed, the glass fiber reinforced plastic powder bears main stress, and the flexible fiber network inhibits crack propagation and absorbs impact energy. And the two are combined to realize the state of non-brittleness in rigidity and non-softness in toughness. Therefore, the problem that the mechanical property and durability of the wood-plastic material become poor due to the glass fiber reinforced plastic powder can be solved.

The invention discloses a flexible fiber and a preparation method and application thereof, and relates to the technical field of composites.The preparation method of the flexible fiber comprises the steps that basic fiber is fed into a xylene solvent to be soaked for 1-24 h, vacuum drying is conducted, and pretreated fiber is obtained; dissolving a coupling agent in deionized water, adding an acidic solution, adjusting the pH value of the solution to 3-7, and carrying out ultrasonic treatment to obtain a coupling agent solution; the pretreated fiber is placed in a coupling agent solution, soaked, rinsed and dried, and surface modified fiber is obtained; 4, phenoxy flexible resin, a diluent, a curing agent and an accelerant are prepared into a flexible resin solution, then the surfaces of the surface modified fibers are coated with the flexible resin solution, flexible fibers are obtained after curing, and when the flexible fibers are used for preparing the wave-absorbing skin, under the condition that the glass-transition temperature of the wave-absorbing prepreg is not changed, the deformation of the wave-absorbing skin is reduced.

The invention provides an acoustic device sound outlet hole dustproof net structure, an acoustic device and a manufacturing method of the acoustic device sound outlet hole dustproof net structure. The acoustic device sound outlet hole dustproof net structure comprises a shell and a dustproof weaving assembly. The dustproof weaving assembly comprises a dustproof weaving net and a welding piece, the welding piece is provided with a weaving containing cavity and a wire hole set, the dustproof weaving net is composed of a first flexible wire set and a second flexible wire set, and the first flexible wire set and the second flexible wire set are interwoven into a net-shaped structure through the wire hole set. The dustproof woven mesh can realize fine aperture control through different weaving processes, meshes are uniformly distributed, foreign matters can be more effectively blocked, local blockage is reduced, and the problem of low aperture control precision of a traditional process is avoided. The aperture ratio can be changed by adjusting the number of the line groups, different scene requirements can be met, the sound field focusing degree can be improved by increasing the line groups, and the sound definition and loudness can be improved by reducing the line groups. If a flexible fiber material is adopted, the deformation resistance can be improved, the line body breakage risk is reduced, the steel sheet is light, thin and flexible, and the problem that a traditional die-cutting perforated steel sheet is difficult to integrate into the light and thin design is solved.

The application discloses an ECC-building solid waste flexible combination bridge pier protection device and method, and the device comprises a plurality of ECC protection hanging plates; two adjacent ECC protection hanging plates are detachably connected; and a flexible fiber waste particle filling layer is arranged in the ECC protection hanging plate. The method comprises the following steps: step one, preparing the ECC protection hanging plate; step two, bonding a fiber cloth bag on the inner wall of the ECC protection hanging plate, and sealing the bottom of the fiber cloth bag; step three, filling the flexible fiber waste particle filling layer into the fiber cloth bag; step four, cleaning the surface of the bridge pier, and closely attaching a plurality of ECC protection hanging plates to the outer wall of the bridge pier; and step five, assembling and fixing the plurality of ECC protection hanging plates through a connecting assembly. The application utilizes the material properties of high ductility of the ECC and the energy absorption characteristics of the brittle failure of the flexible fiber bulk particles, absorbs the impact energy, reduces the impact force, can simultaneously protect the safety of the bridge pier and the vehicle, and has high durability, is green and environment-friendly, and utilizes the waste.

The invention relates to a flexible optical fiber bundle polishing clamp for medical imaging and data transmission, which comprises a clamp main body, a plurality of first through holes are formed in the clamp main body, and the first through holes penetrate through the upper end surface and the lower end surface of the clamp main body; a second through hole is correspondingly formed in one side of each first through hole and penetrates through the inner wall of the first through hole and the outer wall of the clamp body. The clamp is used for polishing the flexible optical fiber bundle for medical imaging and data transmission, and has the advantages of being low in breakage rate of the optical fiber bundle and high in polishing quality and polishing efficiency.

The invention relates to an electric machine (1) having a rotor (3) and a stator (2), wherein the stator (2) and / or the rotor (3) have an electric plug-in winding (4) comprising a plurality of rigid, insulated electric conductor elements (5), wherein the conductor elements (5) are arranged in slots of the stator (2) or the rotor (3) and protrude with conductor ends (17) from the slots, wherein the conductor ends (17) of the conductor elements (5) are respectively connected with the conductor ends (17) of other conductor elements (5) of the conductor elements (5) to form the electric plug-in winding (4), wherein the conductor elements (5) have an electrically insulating insulation sheath (9), characterized in that each conductor element (5) comprises a plurality of flexible fibers (8), in particular a plurality of flexible fibers of a conductor strip made of carbon nanotubes or graphene, and the insulation sheath (9) surrounds the plurality of fibers (8) in a hose-like manner and is configured in such a way that the insulation sheath imparts a rigid shape to the electric conductor element (5).

The invention belongs to the technical field of hydrogen storage. Specifically, the invention relates to a vanadium-based hydrogen storage alloy material and a vanadium-based hydrogen storage alloy unit body preferably comprising the vanadium-based hydrogen storage alloy material, and further relates to a preparation method of the vanadium-based hydrogen storage alloy unit body and a hydrogen storage device comprising the vanadium-based hydrogen storage alloy unit body. The vanadium-based hydrogen storage alloy unit body comprises vanadium-based hydrogen storage alloy particles with coatings or plating layers on the surfaces; and the nickel-based flexible fiber net coats one or more vanadium-based hydrogen storage alloy particles with coatings or plating layers on the surfaces. According to the vanadium-based hydrogen storage alloy unit body, through the synergistic effect of the coatings or the plating layers located on the surfaces of the vanadium-based hydrogen storage alloy particles and the nickel-based flexible fiber nets wrapping the vanadium-based hydrogen storage alloy particles, the three problems of hydrogen embrittlement, oxidation and pulverization of a vanadium-based hydrogen storage alloy material are solved at the same time; and the stability and safety of hydrogen absorption and desorption circulation of the vanadium-based hydrogen storage alloy material are remarkably improved.