68results about How to "Multiple choice" patented technology

The invention relates to a composite alkaline ionic membrane as well as a preparation method and application thereof. The composite alkaline ionic membrane is obtained by carrying out anion exchange on a composite membrane consisting of a quaternized anion exchange membrane type polymer and an ion solvated polymer nanofiber membrane, the quaternized anion exchange membrane type polymer is distributed on the surface and in pores of the ion solvated polymer nanofiber membrane, and the quaternized anion exchange membrane type polymer and the ion solvated polymer nanofiber membrane are combined through a covalent bond; the preparation method comprises the following steps: coating the surface of an ion solvated polymer nanofiber membrane with an anion exchange membrane type polymer solution, filling pores in the membrane with the anion exchange membrane type polymer solution, and then sequentially carrying out a cross-linking reaction, a quaternization reaction and an anion exchange reaction to prepare the composite alkaline ionic membrane; the alkaline ionic membrane is applied to alkaline electrolysis of water for hydrogen production, alkaline fuel cells, carbon dioxide conversion or electrochemical synthesis of ammonia. The composite alkaline ionic membrane disclosed by the invention has excellent ionic conductivity and mechanical strength; the preparation method is simple and feasible; the application range is wide.

The invention discloses a microorganism for degrading a nitrogen-containing heterocyclic compound and application of the microorganism in wastewater treatment, and belongs to the technical field of wastewater treatment. The microorganism is Rhodococcus pyridinivorans Rho48 screened from activated sludge of a membrane bioreactor of a tin-free municipal sewage treatment plant, has broad spectrum, and can be used for degrading and mineralizing a plurality of nitrogen-containing heterocyclic compounds such as indole, quinoline, benzothiazole or pyridine. The bacillus subtilis can be used in combination with Rhodococcus ruber Rho4, the bacillus subtilis and the Rhodococcus ruber Rho4 can form a composite flora, and the degradation and mineralization effects on nitrogen-containing heterocyclic compounds, especially indole, can be further improved. The Rho48 can degrade and mineralize at least three nitrogen-containing heterocyclic compounds including quinoline, benzothiazole or pyridine regardless of whether the Rho48 is used alone or in combination with Rho4, so that the Rho48 has more selectivity when being used for treating nitrogen-containing heterocyclic compound wastewater, especially composite pollution wastewater containing multiple nitrogen-containing heterocyclic compounds at the same time.

A large nut inversion device comprises a device screw rod, a nut tray, a spring, a spring tray and a hexagon nut, the device screw rod is used for being matched with a large nut to be installed, the nut tray is located above the device screw rod and used for bearing the large nut, and the spring is located between the nut tray and the spring tray. Through the elastic effect of the spring, when the nut tray makes contact with the threaded section of the nut screw, threads can be automatically aligned, centered and leveled, so that a large nut can be quickly and efficiently screwed into the nut screw, the spring tray is used for fixing the spring and limiting the displacement of the spring, and the hexagonal nut is used for locking the spring tray and the device screw. Therefore, a complete inversion device is formed. The device adopts a split type design, is convenient to carry and adapts to different scenes; meanwhile, the device is provided with a safety locking mechanism to prevent the nut from overturning or falling off; the upside-down mounting device is simple in structure, the mounting efficiency is remarkably improved, the labor intensity is reduced, the operation safety is enhanced, and the upside-down mounting device has wide application prospects.

The invention relates to a method for dispatching the operation of a generator, and the method builds an AC / DC hybrid microgrid model based on a grey wolf algorithm, and the model integrates a plurality of power supplies such as photovoltaic power generation, a fan, a diesel generator and the like, and adapts to two operation states of grid connection and island. By setting objective functions and corresponding processing strategies in different operation states, the existing particle swarm optimization and genetic algorithm are optimized, and the optimization algorithm is further applied to the multi-generator system. The maximum frequency deviation of the system under disturbance is obtained by deducing the standard form of the primary frequency response characteristic of the power system and converting the standard form to the time domain. Therefore, a robust scheduling model based on improved frequency response is established, and a clear optimization target and constraint conditions are set, so that robust interval power scheduling of the power system is realized, and the stability and the safety of the system are ensured to be effectively guaranteed when the micro-grid fluctuates.

The invention relates to a composite three-dimensional copper current collector, a preparation method thereof and a lithium metal battery. The composite three-dimensional copper current collector comprises a three-dimensional copper current collector and self-assembly molecules, the three-dimensional copper current collector comprises a copper foil and a copper-nickel alloy nanocone loaded on the surface of one side of the copper foil; the surface of the copper-nickel alloy nanocone is combined with the self-assembly molecules. Self-assembly molecules are combined on the surface of a three-dimensional copper current collector to modify the three-dimensional copper current collector, and the three-dimensional copper current collector which is thin in thickness, light in weight, excellent in mechanical property, poor in corrosion resistance, weak in oxidation resistance and multiple in side reaction is combined with the self-assembly molecules with different functions. According to the composite three-dimensional copper current collector, the phenomena that the three-dimensional copper current collector is easy to oxidize and not resistant to corrosion, surface side reaction, lithium dendrite growth and the like can be improved, the three-dimensional copper current collector can be modified in different aspects, the composite three-dimensional copper current collector is applied to a lithium metal battery, and the electrochemical performance such as rate and cycling stability of the lithium metal battery can be obviously improved.

The utility model relates to the field of high-pressure homogenizers, and discloses a high-pressure homogenizer convenient for feeding, which comprises a high-pressure homogenizer main body, one side of the upper surface of the high-pressure homogenizer main body is fixedly connected with a first connector, and the lower end of the outer wall of one side of the high-pressure homogenizer main body is fixedly connected with a storage box. A supporting frame is fixedly connected to the upper end of the outer wall of one side of the high-pressure homogenizer body, a first conveying pipe is fixedly connected to the center of the inner top face of the supporting frame, a storage barrel is fixedly connected to the middle of the upper surface of the supporting frame, and observation glass is fixedly connected to the middle of the front end of the outer wall of the storage barrel. Compared with a traditional high-pressure homogenizer, the high-pressure homogenizer is provided with the storage box, a user only needs to place a pipeline for conveying raw materials in the feeding port, the trouble that the user carries out feeding for multiple times is reduced, and therefore the efficiency of the high-pressure homogenizer during operation is improved, and the burden of the user during use is reduced.

The invention belongs to the technical field of two-dimensional film material growth, and discloses a 2H-phase semiconductor platinum disulfide single crystal and a preparation method thereof. The method comprises the following steps: dropwise adding a metal halide aqueous solution into a Pt-based compound, mixing, heating and drying to obtain a Pt source mixture; reversely buckling the pretreated growth substrate above the Pt source mixture, and placing the growth substrate in a high-temperature area in the quartz tube; sulfur powder is placed in a low-temperature area inside an upstream quartz tube, in a mixed atmosphere, S steam volatilized by heating of the sulfur powder is diffused to a high-temperature area of a tube furnace and chemically reacts with Pt steam generated by volatilization of a Pt source mixture in the high-temperature area, and 2H-phase PtS2 single crystals are deposited on the lower surface of a growth substrate; or placing the ZnS powder in the high-temperature area, in the inert gas atmosphere, enabling S vapor decomposed from the ZnS powder to chemically react with Pt vapor generated by volatilization of the Pt source mixture, and depositing on the lower surface of the growth substrate to generate the 2H-phase PtS2 single crystal.

The utility model discloses a wearable insomnia therapeutic apparatus, which belongs to the technical field of insomnia therapeutic apparatuses and comprises a support frame, two groups of stretching components, a connecting component and an adjusting component, an insomnia therapeutic apparatus body is fixedly mounted at a protruding position of the top of the support frame, and a soft cushion is fixedly connected to the outer surface of the inner side of the support frame. After the extension band in the connecting port is pulled and the connecting band is connected with the first connecting frame and the second connecting frame, the extension band can be adjusted according to the thickness of the neck of a user and the required comfortable length, and then the extension band is shortened, so that the user can conveniently wear the neck or the head, convenience is provided, and the user can choose to wear the neck or the head; therefore, more choices are provided, and the diversity of wearing modes of the insomnia therapeutic apparatus is improved.

The utility model relates to the technical field of aquaculture, in particular to a feeding device for crayfish breeding, which comprises a base fixed on a floating device. Side plates are fixed to the upper side face of the base, a support is fixed to the upper portions of the side plates, a feeding bin is fixed to the side face of the support, a conveying belt is movably arranged between the side plates in parallel through a shaft piece, a motor is fixed to one end of each side plate, and an output shaft of the motor is connected with the shaft piece of the conveying belt. A material guide plate is movably arranged at the other end of the side plate, the material guide plate is obliquely arranged downwards, a scraping plate is fixed to the front portion of the side plate, the scraping plate is attached to the lower side face of the conveying belt and located above the inner end of the material guide plate, the tail portion of the support is attached to the upper side face of the conveying belt, and the front portion of the support is higher than the conveying belt. According to the automatic feeding device, the conveying belt is arranged to automatically feed shrimp food in the feeding bin, compared with manual feeding, time and labor are saved, feeding efficiency is improved, and the automatic feeding device has high practical value.

The invention relates to a method for in-vitro culture of BCG (Bacillus Calmette-Guerin) supernatant and adjuvant therapy of ovarian cancer, in particular to a method for preparing the in-vitro culture of BCG-Guerin supernatant and using the BCG-Guerin supernatant as an adjuvant therapy drug to be combined with a first-line platinum chemotherapeutic drug. The method comprises the following steps: firstly, culturing calmette-guerin bacteria in vitro, and collecting and purifying a culture supernatant product of the calmette-guerin bacteria to obtain the biological preparation with immunomodulatory activity. Then, according to the specific condition of the ovarian cancer patient, a personalized treatment scheme is formulated, the BCG in-vitro culture supernatant product is given to the patient in a proper mode, and meanwhile, the original platinum chemotherapy scheme is maintained. Clinical test results show that the method can significantly improve the curative effect of chemotherapy, reduce the side effect of chemotherapy, prolong the lifetime of a patient and improve the survival rate. The implementation of the invention provides a new and effective treatment means for ovarian cancer patients, and has wide clinical application prospects and profound social significance.

The present invention provides a context-adapted intelligent recommendation method and system, which respond to an advertisement push request from a recommendation end, receive interactive push data sent by the recommendation end, obtain a target item sent by a user end, retrieve the corresponding interactive push data based on the target item and display it to the user end; receive customized posture data uploaded by the user end based on the interactive push data, obtain a posture comparison result based on comparison information between the customized posture data and the interactive push data; when it is determined that the posture comparison result is a similar comparison result, replace the demonstration model in the interactive push data according to a context posture adaptation strategy and the customized posture data to obtain context-adapted data; when it is determined that the posture comparison result is a difference comparison result, retrieve a free posture adaptation strategy to adapt the customized model in the customized posture data to obtain context-adapted data, and send the context-adapted data to the user end.

The invention discloses a recombinant rabies virus genome plasmid, a recombinant rabies virus and a preparation method and application thereof, and the preparation method specifically comprises the following steps: (1) introducing a sequence 1 and a sequence 2 into the recombinant rabies virus genome plasmid, so that the recombinant rabies virus genome plasmid has more selectivity in modification and application; (2) introducing a fluorescent protein gene and a functional probe into the recombinant rabies virus genome plasmid, so that the recombinant rabies virus genome plasmid has the functions of expressing the fluorescent protein and the functional probe; (3) preparing a corresponding recombinant rabies virus which can express fluorescent protein with high sensitivity for cell marking and can also effectively express a functional probe for functional research; the method has wide application value and market prospect in the aspects of neural circuit structure and function analysis, neuron sparse marking, vaccine and drug research and development, disease model establishment, neural network loss and reconstruction detection, virus replication or pathogenic mechanism research and the like.

The invention provides a manufacturing method of a portal crane cross beam and the portal crane cross beam. The manufacturing method of the portal crane cross beam comprises the following steps: arranging a jig frame at a workshop doorway; the bottom plate is laid on the jig frame to serve as the manufacturing reference of the portal crane cross beam; mounting the cylinder on a bottom plate, and mounting a web plate and a wing plate; a welding operation platform is built, and the web and the cylinder are welded; and installing and welding the panel. The manufacturing method can improve the operation safety.

The invention relates to a small steamed bun making process, which belongs to the technical field of food making, and makes the made wrappers soft and elastic, fine and smooth in mouthfeel and chewy by accurately controlling the proportion of plain flour, warm water, yeast and baking powder and the fermentation time, temperature and humidity. The optimized wrapper not only can better wrap the stuffing, but also can keep good taste after being steamed, and brings unique taste enjoyment to consumers, in the aspect of stuffing preparation, seasonings such as pork stuffing, scallion and ginger water, salt, sugar, light soy sauce, oyster sauce, sesame oil and white pepper powder are reasonably matched, and the dosage range of the seasonings is strictly controlled, so that the stuffing is rich and delicious in taste, and the taste of the stuffing is greatly improved. And various seasonings are mutually fused and well arranged. The addition of the scallion and ginger water effectively removes fishy smell and enhances aroma, the accurate proportion of the salt, sugar and other seasonings enables the taste to be moderate in saltiness, the light soy sauce and the oyster sauce improve the delicate flavor, the sesame oil increases the aroma, and the white pepper powder increases a slight spicy taste, so that rich taste is created together, and different taste requirements are met.

The utility model discloses a strip lamp structure. The strip lamp structure comprises a lamp holder, a lamp assembly, a decorative profile and a lampshade. One side of the decorative profile is connected with a lamp holder used for assembling the lamp assembly, and the lampshade is clamped on the lamp holder; the lamp assembly is assembled on the lamp bracket, and the change of the illumination angle, brightness and color can be realized by adjusting the assembly mode of the lamp assembly, so that the illumination requirements in different scenes are met, and more light choices and light effects are provided; the decorative profile is connected with the lamp holder, so that an attractive and neat appearance design can be provided; and the lampshade is more convenient to replace or clean due to the clamping design of the lampshade and the lamp bracket, so that the maintenance efficiency of the lamp is improved.

The invention provides a device and method for rapidly detecting ground stress, and the device comprises three fixed pressure plates and three adjustable pressure plates, the fixed pressure plates and the adjustable pressure plates are assembled and fixed through adjusting bolts, and form a box body with adjustable internal pressure. The pressure is controlled by tightening the adjusting bolt; a simulation rock block is placed in the box body; a reserved hole used for drilling is reserved in the pressure adjusting plate located on the top. Upper arc-shaped clamps are arranged on the two sides of the preformed hole, the upper arc-shaped clamps are locked and fixed through adjusting bolts, and a drill hole is drilled in the top of the simulated rock block through a drilling machine penetrating through the preformed hole. The method has the advantages of simple operation, fast result acquisition, wide application, low cost and the like, and greatly reduces the difficulty of ground stress detection.

The utility model discloses a quick die changing tool for a squeeze riveter, which comprises a base mounted on the squeeze riveter and positioned below a squeeze riveting head, the base is rotatably connected with a rotating seat capable of rotating horizontally, and the rotating seat is provided with a plurality of dies which are arranged around the rotating center of the rotating seat and are different from one another; a locking structure is arranged between the rotating base and the base so that the rotating base can be locked when different dies are switched to the position under the rivet pressing head. The utility model has the advantages of simple structure, simplicity in operation, and convenience and quickness in die replacement.

The invention belongs to the technical field of hyper-parameter optimization, and provides a universal machine learning hyper-parameter black box optimization system and method, and the system comprises a hyper-parameter optimization client which is used for submitting an optimization request; the hyper-parameter optimization service system is used for processing a received client request; the optimization algorithm configuration component is used for configuring a hyper-parameter optimization algorithm; the automatic stopping component is used for stopping the meaningless training set; the hyper-parameter optimization control panel is used for management configuration, scheduling monitoring, user management, authority management and system setting; according to the method, the optimal hyper-parameter combination can be quickly found, and the hyper-parameter tuning efficiency and accuracy are remarkably improved; compared with a traditional manual tuning method, the method has the advantages that time and labor cost are greatly saved, interference of human factors is avoided, and the tuning result is more objective and reliable.

The invention discloses an organic light-emitting compound and an organic electroluminescent device thereof, the compound is used as a bipolar main body material, and an electron donor unit D (Donat), an electron acceptor unit A (Aceppt) and a large steric hindrance construction unit are introduced, so that the transmission of current carriers can be effectively balanced, excitons can be uniformly distributed, and the light-emitting efficiency is improved. The recombination of carriers at an interface is avoided, and the quenching of triplet state-triplet state under high exciton concentration is reduced, so that the performance and the stability of the device are improved.

The utility model provides a laser-induced sintering device of a back contact battery, which comprises a bearing device, the bearing device is provided with a processing station, an electric input module and a laser processing module are arranged corresponding to the processing station, and the electric input module comprises a first electrode and a second electrode; the positive electrode and the negative electrode are respectively connected with a power supply and are respectively electrically contacted with a positive electrode and a negative electrode of a back contact battery; the first electrode comprises a plurality of first contact units which are arranged into at least one first contact electrode arranged along the first direction, and the second electrode comprises a plurality of second contact units which are arranged into at least one second contact electrode arranged along the first direction; the first contact electrodes and the second contact electrodes are arranged side by side in the second direction, the second direction is perpendicular to the first direction, and the first contact units and the second contact units are arranged in a staggered mode in the second direction. According to the laser-induced sintering device, laser-induced sintering processing of the back contact type battery can be realized, and the photoelectric conversion efficiency of the back contact type battery is improved.

The invention relates to the technical field of hearing aids, and particularly discloses a 3D printing customized back-of-ear hearing aid which comprises a customized shell matched with the characteristics of the ear of a user, a bearing body matched with the inner cavity of the customized shell is fixedly arranged in the customized shell, and a gap is reserved between the bearing body and the inner wall of the customized shell. A flexible PCB and a microphone module, a control module and a power management module which are connected with the flexible PCB are arranged in a gap between the bearing body and one side, far away from the back of the ear, of the customized shell, the flexible PCB is connected with a receiver, the receiver is located outside the customized shell and is provided with an earplug, and the earplug is connected with the control module and the power management module. And the receiver, the flexible PCB and the microphone module jointly form a group hearing system for compensating hearing loss. According to the invention, the utilization rate of the internal space of the hearing aid is improved, the hearing aid is ensured to have excellent structural strength, the miniaturization and lightweight process of the hearing aid is successfully promoted, and the wearing comfort and the use experience of a user are effectively improved.

The utility model discloses a wide-spectrum band-pass type electric adjustable spectrum selector which comprises an optical fiber collimator, a D-shaped reflecting mirror, a grating, a lens, a rotating blade, a ridge mirror and an electric motor which are sequentially arranged. The optical fiber collimator, the D-shaped reflecting mirror, the grating, the lens, the rotating blade and the roof mirror correspond to one another in sequence, and the rotating blade is mounted on the electric motor. According to the utility model, the rotation of the rotating blade can be electrically controlled to realize the rapid conversion of the output spectrum, the wavelength selection flexibility and precision are higher, the light path does not need to be adjusted in the wavelength tuning process of the spectrum selector, so that the light beam deviation or deviation is avoided, the structure is simple, the cost is lower, and the device can be packaged as small equipment.

The utility model relates to the technical field of dividing and cutting machines, in particular to a film dividing and cutting machine which comprises a dividing and cutting equipment frame, a supporting roller is fixedly installed on the inner wall of the top of the dividing and cutting equipment frame, a first moving hole is formed in the outer wall of the top end of the supporting roller, and second moving holes are formed in the outer walls of the two sides of the bottom of the supporting roller. A first two-way screw and a second two-way screw are sequentially and rotationally arranged on the inner wall of the top of the slitting equipment frame from top to bottom, first annular frames are connected to the outer walls of the two sides of the first two-way screw through threads, and slitting pressing wheels are fixedly connected to the outer walls of the first annular frames. The film cutting device is more in selectivity, a limiting structure is arranged to ensure that a film is not deflected during cutting, the distance between the cutting pressing wheel and the limiting sleeve is controlled through the first bidirectional screw and the second bidirectional screw, the hand wheel can be pushed by pulling the handle to separate the anti-skid pad from the cutting equipment frame, rotation of the hand wheel can be limited by loosening the anti-skid pad to reset, operation is simpler and more convenient, and the cutting efficiency is improved. And the use efficiency of the splitting machine is improved.

The invention provides a buried material compound and application thereof in a perovskite battery, and relates to the technical field of perovskite batteries. The structure of the buried material compound is # imgabs0 #, at least one of R1 and R2 is an organic group containing one or two or more elements of O, S, N and P, or at least one of R1 and R2 contains halogen. The bottom burying compound is used for a bottom burying layer of the perovskite solar cell, and the stability of the photoelectric conversion efficiency of the perovskite solar cell can be improved.

The application discloses a wearable device, comprising a device main body, a sound producing part and a sound outlet assembly, the sound producing part is arranged on the device main body; the sound outlet assembly is movably arranged on the device main body and can be switched between a first position and a second position, the sound outlet assembly is communicated with the sound producing part, the sound outlet assembly is provided with a first sound outlet hole and a second sound outlet hole with different directions; when the sound outlet assembly is in the first position, the sound producing part is communicated with the first sound outlet hole and produces sound through the first sound outlet hole; when the sound outlet assembly is in the second position, the sound producing part is communicated with the second sound outlet hole and produces sound through the second sound outlet hole.

The invention relates to a PH-adjustable hydrogen-rich mineralized central direct drinking water preparation and supply system. The system comprises a water purification treatment unit, an electrolytic chemical treatment unit, a mineralization filtering unit, a selective constant-pressure water supply unit and a terminal which are sequentially connected through pipelines, and further comprises a PLC (Programmable Logic Controller) control unit electrically connected with each module, the water purification treatment unit is used for purifying the drinking water to obtain purified water; the electrolytic chemical treatment unit is used for carrying out electrolytic treatment on the water treated by the water purification treatment unit to obtain neutral hydrogen-rich water and / or weakly alkaline hydrogen-rich water; the mineralization filtering unit is used for mineralizing and filtering the drinking water, so that the drinking water contains preset mineral trace elements; the constant-pressure water supply unit is used for adjusting drinking water supply pressure; the system can selectively supply one of neutral hydrogen-rich mineralized central direct drinking water and alkalescent hydrogen-rich mineralized central direct drinking water at preset time according to a preset rule, and is beneficial to human health.

The utility model discloses an intelligent touch control synchronous sound box based on a V53 chip, which integrates audio and touch control processing functions through a V53 chip module, remarkably improves the processing efficiency and accuracy of audio signals, and reduces the complexity and cost of an external audio processing circuit. A touch instruction recognition function enables a user to more quickly and accurately touch operation, the fluency and the accuracy of user interaction are enhanced, in addition, the module has a synchronous communication function, the problem of audio asynchronism among multiple sound boxes is effectively solved, the auditory experience is optimized, the sound box shell is directly provided with the touch sensing panel, and compared with a traditional physical key, the sound box shell is more convenient to use. According to the invention, the operation is more flexible and convenient, personalized setting is supported, the user experience is improved, meanwhile, the wireless synchronization module enables the sound box to synchronously play audios with other intelligent devices, more choices and flexibility are provided, the sound box is easily integrated into an intelligent home system and becomes an important part of intelligent home ecology, and the overall experience of the user is further enhanced.

The utility model relates to the technical field of track sockets, and specifically discloses an electrified guide rail and a track socket, the electrified guide rail comprises a housing, the housing comprises a sealing cover member and a fixing frame arranged behind the sealing cover member, the sealing cover member and the fixing frame are enclosed to form an inner cavity, a support member is arranged in the inner cavity, and the support member is provided with an opening. The supporting piece is connected with a polar electric guide rail, the inner wall of the sealing cover piece extends backwards to form a positioning cylinder, the supporting piece is provided with a positioning groove, at least part of the positioning cylinder extends into the positioning groove, and the fixing frame and the supporting piece are provided with positioning clamping structures which are opposite in position and matched with each other respectively. The fixing frame is connected with a rotary connecting piece, and one end of the rotary connecting piece penetrates through the positioning groove and is connected with the positioning cylinder. The assembly structure between the parts is simple, the assembly is convenient and fast, the assembly efficiency is high, and the connection firmness is high.

The utility model relates to the technical field of surgical instruments, in particular to a corrosion-resistant surgical instrument. According to the technical scheme, the corrosion-resistant surgical instrument comprises a sheath, a knife handle, a blade and an installation groove, a first reed is arranged in the sheath, second reeds are arranged on the two sides of the knife handle, the knife handle is installed in the sheath in a limited mode through cooperation of the second reeds and the first reed, the installation groove is formed in the knife handle, and the blade is arranged in the installation groove. A fixing buckle is arranged in the installation groove, and a blade is installed in the installation groove of the knife handle in a limited mode through the fixing buckle. The utility model provides a safer, more convenient and more reliable operation tool for medical personnel, and is beneficial to improving the success rate of an operation and the treatment effect of a patient.