62results about How to "Realize controllable operation" patented technology

The invention provides a double-frequency broadband E-shaped microstrip antenna, comprising an E-shaped patch 3. A main feeder line 1 is directly connected to an SMA joint 2 of coaxial feeding point of the E-shaped patch 3, the SMA joint passes through the ground and medium and then is directly in contact with the intermediate arm of the E-shaped patch 3, another two arms of the E-shaped patch 3 are symmetrically distributed at the two sides of the feeding point and have a distance of L3 from the edge of the intermediate arm, the E-shaped patch 3 is connected with a T-shaped patch (bent T-shaped patch) 4 by loading to form a main radiating unit of the antenna, a width t is arranged between the E-shaped patch 3 and T-shaped patch (bent T-shaped patch), and a slot with width t2 and depth t1 is respectively arranged at the two sides of the joint between the T-shaped patch (bent T-shaped patch) and the E-shaped patch. The invention has relatively high gain, wide working frequency band, uniform current distribution, light weight and small volume, can effectively improve communication quality, is easily integrated with a circuit, and can be widely used for a portable device and in indoor coverage and wireless local area network.

The invention discloses a slag and metal separation device of an external electric field between slag and metal. The slag and metal separation device is composed of a feeding device, a physical slag and metal separation system and a recycling system, wherein the physical slag and metal separation system is composed of a slag and metal separation cabin and an electric field generation system; the electric field generation system comprises a set of two polar plates with the same polarity and a set of polar plates with different polarities; a positive potential region space and an electric field acting region space are formed in the slag and metal separation cabin in sequence from top to bottom; electrons are provided for a slag and metal mixture by a furnace slag hopper; the slag and metal mixture falls into the positive potential region space to enable residual metal grains to be electrified; then the residual metal grains are moved towards the appointed polar plate under the effect of the electric field so that the residual metal grains are separated at a state of being separated from the slag, are conveyed out by the recycling system and are collected into an appointed container. According to the slag and metal separation device, the residual metal grains are separated from the slag under the effect of the electric field according to the conductive difference of the slag and the metal, so that the metal recycling rate is improved, the process is simple, the material cost is low and the slag and metal separation device is suitable for industrial application.

The invention discloses a temperature response type europium ion imprinting composite membrane preparation method and belongs to the technical field of environmental functional material preparation. Specifically, a regenerated cellulose membrane is utilized as a supporting membrane, graphene oxide and modified silicon dioxide nanosphere are utilized as membrane preparing materials, an europium ion is utilized as a formwork, acrylic amide is utilized as a functional monomer, N-isopropyl acrylamide is utilized as a temperature sensitive type functional monomer, ethylene glycol dimenthacrylate is utilized as a cross-linking agent, azodiisobutyronitrile is utilized as an initiator, a composite membrane is prepared on the surface of the supporting membrane, a two-step temperature polymerization method is utilized to prepare a temperature response type europium ion imprinting composite membrane. A static adsorption experiment and a selective permeation experiment are utilized to research adsorption balance, adsorption kinetics, selective recognition and europium ion separation performance of the prepared temperature response type europium ion imprinting composite membrane. Results show that the temperature response type europium ion imprinting composite membrane prepared through the method disclosed by the invention has higher specific adsorption capacity on europium ions and excellent europium ion recognition and separation performance under condition of 35 DEG C.

The invention discloses sodium alginate-chitosan poly-ion composite hydrogel and a preparation method thereof. By means of the preparation method, the concentration of a sodium alginate-chitosan poly-ion composite solution is greatly increased, the number of ion pairs capable of reacting is increased, accordingly, the mechanical strength of the hydrogel is improved, it is achieved that the preparation process of the hydrogel is controllable, and the hydrogel in different shapes can be prepared by designing the shapes of molds according to the actual needs. The preparation method is mild in condition, chemical substances, such as a cross-linking agent and a photoinitiator are not needed, the mechanical strength of the sodium alginate-chitosan poly-ion composite hydrogel prepared by using the method can reach 1.8 MPa, and the sodium alginate-chitosan poly-ion composite hydrogel has a good application prospect.

The invention discloses a crane monitoring system with a short message early warning function. In the system, each electronic monitoring terminal device can operate independently, and establish a data channel between each electronic monitoring terminal device and a government monitoring platform by a data terminate unit (DTU) module carried by the electronic monitoring terminal device based on a general packet radio service (GPRS) network. A monitoring center can monitor the current running action data of a project crane in real time, when conditions such as unauthorized behaviors, running failure, artificial breakage, severe weather and the like occur, the monitoring center sends short messages to a monitoring network platform in real time to give an alarm and count for reference. The monitoring platform can force a tower crane to stop operating in a mode of sending the short messages automatically according to the actual situation.

The invention provides a method for constructing a nanoparticle-nanorod composite structure and a constructed composite structure. The method comprises the following steps that a, a two-dimensional DNA base is constructed; b, modification is conducted on nanoparticles through single-stranded DNA, and single-stranded DNA different from the single-stranded DNA modifying the nanoparticles modifies a nanorod; c, the nanoparticles and the nanorod modified by the single-stranded DNA are crossbred with the two-dimensional DNA base, and the nanoparticle-nanorod composite structure is formed on the two-dimensional DNA base, wherein a single-stranded DNA probe complementary with the single-stranded DNA modifying the nanoparticles and the nanorod and stretching out of the two-dimensional DNA base plane is connected to the two-dimensional DNA base, and a single-stranded DNA probe complementary with the single-stranded DNA modifying the same nanorod is composed of a plurality of single-stranded DNA probes arranged in a linear mode on the two-dimensional DNA base. The method for constructing the nanoparticle-nanorod composite structure can accomplish the controllable operation of the nanorod, and therefore the needed nanoparticle-nanorod composite structure can be constructed.

The invention relates to the technical field of printing and dyeing wastewater treatment. The invention discloses a preparation method and application of temperature-sensitive composite hydrogel by utilizing a synergistic effect of photocatalysis and temperature sensitivity. The temperature-sensitive composite hydrogel disclosed by the invention is prepared by the steps: introducing a temperature-sensitive copolymer and a photocatalyst into alginate hydrogel; the porosity of the hydrogel is adjustable in the temperature change process, a dye can be adsorbed and degraded under the illuminationcondition, and the adsorption capacity of the composite hydrogel to the dye is improved by virtue of the synergistic effect of a porous structure in the hydrogel caused by adding a catalyst and a loose structure formed by a temperature-sensitive copolymer at the temperature higher than the conversion temperature. And by virtue of the photocatalyst embedded in the hydrogel, the degradation of the adsorbed dye and the cyclic utilization of the composite hydrogel can be realized, and the composite hydrogel can be applied to the fields of printing and dyeing sewage treatment and the like.

The invention provides an online analysis system of water quality, comprising a water quality online analyzer, wherein the water quality online analyzer comprises a sampling device, a flow path device and a measuring device; the water quality online analyzer further comprises an upper computer and a control device; the upper computer is used for building a command library according to the edited subcommands, selecting the subcommand and generating flow information according to tasks of the water quality online analyzer, and transmitting the flow information to the control device; and the control device for controlling the sampling device, the flow path device and the measuring device to execute the task according to the received flow information.

The invention belongs to a manufacture technique of calcining cement clinker, in particular to a process of calcining cement clinker using coal gas as the heat source in rotary kiln. The manufacture technique includes a process of voltage stabilization and transformation of the coal gas, and a process of burning and heat calcinations of the coal gas in the rotary kiln. The invention is characterized in that the coal gas enters a burner through the coal gas pipe after the voltage is stabilized by a voltage stabilization cabinet and the flow capacity is adjusted by a control valve, then the coal gas is lit by the coal burner and sprayed in the rotary kiln. The coke-oven gas, blast furnace gas, converter gas and high coke mixed gas left in the process of metallurgy production can take place coal powder as fuel to calcine the cement clinker. The invention has the advantages that the manufacture technique can reduce environmental pollution caused by burning coal, increase the utilization ratio of the surplus gas in iron and steel companies, and reduce the exhaust of coal gas, thereby having good economic benefit and social benefit.

The invention discloses a soluble tail tube plug and belongs to the technical field of under-pressure well workover of oil-gas wells and completion underground tools. The soluble tail tube plug comprises a plug body, a plugging sub and a plugging part; the lower portion of the plug body is fixedly connected with the upper portion of the plugging sub; both the upper portion of the plug body and thelower portion of the plugging sub are connected to a string; the peripheral edge of the plugging part is embedded in the part, connected with the plugging sub, of the plug body. The plugging part includes a separator portion, a fixing portion and a shearing portion to connect the separator portion and the fixing portion; the fixing portion is connected with the plug body and the plugging sub to fix the plugging part; the shearing portion is arranged close to the tubular wall of the plug body; the thickness of the shearing portion is less than that of the separator portion; the plugging part is made with soluble aluminum alloy. The soluble tail tube plug has the advantages that the plug herein can be effectively broken; smoothness in a tube is optimized; the problem of residual breakage inthe string is solve; the blocking and other problems are avoided; formation pollution can be maximally reduced; reservoirs are protected.

The invention provides a core-shell structure quantum dot preparation method, and the method comprises the steps: adding a second mixed solution containing a cation precursor and an anion precursor toa first mixed solution containing quantum dots at a predetermined temperature to coat a shell layer with the quantum dots so as to obtain core-shell structure quantum dots, wherein the boiling pointof the organic solvent is lower than the preset temperature. According to the invention, the organic solvent with low boiling point and good solubility to the cationic precursor is selected as a solvent component of the cationic precursor solution, so the cationic precursor solution participating in the shell preparation process has higher molar concentration, thereby further improving the shell coating quality, and facilitating the obtaining of the quantum dots with high fluorescence quantum yield and narrow emission peak half-peak width. In addition, the preparation method provided by the invention can easily realize a controllable operation process of shell coating, and greatly simplifies a shell coating process of the quantum dot.

The invention discloses a garbage picking unmanned aerial vehicle integrating a garbage bin, which relates to the field of unmanned aerial vehicles and includes a propeller, a control room, a garbage bin, a mechanical arm assembly and a mechanical claw. The control room is arranged under the propeller. A storage battery and a camera electrically connected to the storage battery are provided in the control room, the dustbin is fixed at the bottom of the control room, an opening is opened on one side of the dustbin below the camera, and the mechanical arm assembly is fixed below the opening, The mechanical claw is arranged at the end of the third mechanical arm. The invention solves the problem that it is difficult and dangerous to clean up the garbage in the mountains, and the garbage bin is arranged under the drone, so that the invention can realize multiple pickups of garbage by the drone within the same flight distance.

The invention discloses a field-effect tube channel type field emission cathode and a preparation method thereof. The cathode is modulated by a back gate and drain voltage. Additional bias voltage is used for changing electronic supply functions in two dimensional materials used as conductive channels, thereby adjusting field emission current density and achieving a field emission cold cathode modulated by the electric field. A new solution is provided for improving stability of field emission current of two-dimensional nano-materials, and a new path is provided for achievement of high-frequency regulated field emission cathode, thereby promoting actual application of two-dimensional nano cold cathodes with low emission threshold voltage in the vacuum microelectronic field.

The invention relates to a pretreatment technology before digital printing of high-count cotton fabric. Before digital printing, processes of singeing, ultrasonic boiling and bleaching, mercerizing, process of padding a slurry and preshaping are sequentially performed on gray fabric, and through formula optimization and technological optimization during boiling and bleaching as well as slurry padding, the fabric has a relatively good printing state before digital printing; the high-count cotton fabric treated by the pretreatment technology provided by the invention not only keeps smooth and soft surface properties of the high-count cotton and the like, but also is endowed with relatively high cleanliness, whiteness, dye affinity and the like, so that a guarantee is provided for high-precision digital printing, and the printed fabric is exquisite in pattern and high in color and luster.

The invention relates to a novel back-up protection device for a surge protector. The back-up protection device adopts a relay (1), wherein a control unit (2) and a protection unit (3) are arranged in the relay (1); the control unit (2) is connected with an external measurement and control device; and the protection unit (3) is connected in series with a surge protection device (5) in a surge protection return circuit. The device adopts a contact device or a contact capable of bearing strong surge currents as the protection unit (3), can prevent the surge protector from being damaged when the surge protector discharges the surge currents, and adopts the control unit (2) connected with the measurement and control device to realize controllable operation of back-up protection of the surge protector. Even if the surge protector has weak abnormal information, the back-up protection device can disconnect the protection unit (3) through the control unit, separates the surge protector from circuits and effectively solves the existing problems.

An unmanned aerial vehicle intelligent power supply and distribution system is provided by the invention, and comprises an alternating-current generator, a power supply device, a storage battery, a power distribution center, a secondary power supply device, a power supply system processor, a solid-state power controller and a CAN bus. Aiming at the problems of poor power supply quality, no redundancy, no monitoring system and poor expansibility of the existing unmanned aerial vehicle electrical system, the system solves the problem of poor power supply quality of the unmanned aerial vehicle, fully utilizes the backup relationship between power supplies and a storage battery, provides redundant power supply, and monitors the working state of the system by using a real-time monitoring system, so the unmanned aerial vehicle is prevented from working abnormally due to the power supply problem in the flight process, In different mission profiles, different matching types are selected, and the expansibility performance is good.

The invention belongs to the technical field of marine winches, and particularly relates to a brake apparatus for a capstan of a winch. A brake ring of the device is formed in the mode that an upper brake arc plate and a lower brake arc plate are connected in a Hough section shape, and a matching ring is arranged at the end of the capstan in a penetrating mode; a support extends to the matching ring from a base, the adjacent ends of the two braking arc plates are coaxially hinged to the top of the support, and the axis of the hinged position is parallel to the axis of the matching ring; pull rods are arranged at the other ends relative to the hinged ends of the two braking arc plates in a penetrating mode respectively, the two pull rods are located on the same radial section of the matching ring, and the motion paths of the two pull rods avoid each other spatially; the brake apparatus further comprises a foot rest lever, a hinged support base is arranged on the base and hinged to the hinged support base, the bottoms of the two pull rods are hinged to the positions, on the two sides of the hinged support base, of a rod body of the foot rest lever respectively. The brake apparatus has the advantages of being simple in structure, low in manufacturing cost and low in operation and maintenance threshold, and the brake apparatus is extremely suitable for being used in a severe environment where a ship is located and meeting the maintenance requirements.

The invention relates to a domestic rabbit traumatic osteoarthritis model making device. An impact head is arranged at one end of an impact rod of an impact unit in a detachable mode, and a sleeve movably sleeves the outer side of the impact rod; a spring covers the outer side of the impact rod which is located in the sleeve; when the spring is at a natural length, a shielding sheet clings to a second baffle plate; when the domestic rabbit traumatic osteoarthritis model making device is used, the relative positions and included angles of the impact unit, a connecting unit and a leg wrapping unit are regulated and fixed, when the rear end of the impact rod is pulled by external force, the impact rod and the shielding sheet are integrally moved backwards and the spring becomes shrunk, and meanwhile, the shielding sheet and the second baffle plate are separated; the spring, after being released, can drive the impact head of the impact rod to impact upon an object in the front, so that a controllable operation over a cartilage injury degree can be achieved by regulating the strength of the exerted external force; various osteoarthritis models are comparable; and the domestic rabbit traumatic osteoarthritis model making device is good in experimental effect and high in experimental data reliability.

The invention relates to a smoking set. The smoking set comprises a shell, and a loading cavity, an airflow induction device, a circuit control unit and a power source are arranged in the shell. A fluid channel is formed between the loading cavity and the shell and is communicated with the exterior of the shell and the interior of the loading cavity. An electromagnetic induction heating piece surrounds the exterior of the loading cavity. The electromagnetic induction heating piece is electrically connected with the power source, and the circuit control unit is electrically connected with the airflow induction device and the electromagnetic induction heating piece. When the smoking set is used in cooperation with a cigarette added with magnetic substances, the cigarette can be evenly heatedand smoke can be rapidly discharged, the smoking taste consistency is guaranteed, the tobacco utilization rate is increased, meanwhile, the effect of stopping immediately after smoking can be achieved, and the use experience of a user can be improved.

The invention discloses a textile machinery remote operation and maintenance system and a realization method thereof. The textile machinery remote operation and maintenance system comprises an industrial touch control all-in-one machine and textile machinery equipment, the industrial touch control all-in-one machine comprises control information, an industrial management system, a cloud management system, a control signal, a digital signal interface, an analog signal interface and an RS485 interface, and the output end of the industrial touch all-in-one machine is electrically connected with the input end of the control information. According to the remote operation and maintenance system and the realization method thereof, the industrial management system and the cloud management system in the industrial touch all-in-one machine are controlled through an application system, a cloud platform system, a transmission system and an Internet of Things system, so that the industrial touch all-in-one machine conveniently controls start and stop of a motor through a control signal and a touch controller, detection is facilitated, and the safety performance is improved; visual operation of the textile machinery equipment can be realized through the control information, the industrial management system and the digital signal interface, operation of workers is facilitated, and fatigue of manual operation is reduced.

The invention provides a cold compress bandage, comprising a cold compress bag, the upper part of the cold compress bag is provided with an open cover, the inside of the cold compress bag is provided with cold compress particles, and the upper and lower sides of the cold compress bag are provided with elastic slideways, so The left and right sides of the cold compress bag are provided with slide clamps, and the position of the slide clamp slides controllably on the elastic slideway; the left and right sides of the cold compress bag are also provided with a first bandage and a second bandage, so The position of the first bandage and the second bandage is adjustable. By modifying the bandage structure in the prior art, it aims to achieve beneficial effects such as flexible and general purpose, specific settings for specific situations, and real-time temperature acquisition, and is suitable for large-scale promotion and application.