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34results about How to "Flexible and easy to control" patented technology

Terahertz isolator of magnetic surface plasma waveguide

InactiveCN102916238AEnhanced one-way transmission performanceImprove isolationWaveguide type devicesWaveguideTransmission quality
The invention discloses a terahertz isolator device of a magnetic surface plasma waveguide and a control method thereof. The asymmetric and periodic surface plasma waveguide is formed by a metal wall and a semiconductor indium antimonide pillar array. By exerting an external magnetic field under low temperature, the indium antimonide shows the revolving electrical property, and the structure can generate a magnetic surface plasma mode, so that the function of unidirectional isolation transmission of the terahertz wave can be achieved. The unidirectional transmission working frequency range is higher than 1THz, the bandwidth is larger than 80 GHz, the isolation reaches 90dB, the insertion loss is lower than 0.25dB, and tuning on the working frequency range can be performed by controlling the external magnetic field strength. Under the temperature of 186K, the frequency of the external magnetic field can be adjusted to 0.7T from 0.1T, and the central working frequency of a unidirectional transmission frequency band of the device can be tuned to 1THz from 1.42THz. The terahertz isolator is low in loss, high in isolation, tunable in broadband and capable of reducing echo and scattered noises in a terahertz application system and improving transmission quality of the terahertz beam.
Owner:NANKAI UNIV

LED Bluetooth music ceiling lamp

The invention discloses an LED Bluetooth music ceiling lamp which comprises a heat-dissipating base. A threaded assembling hole is formed in the center of the heat-dissipating base. An aluminum substrate is laid on the lower portion of the heat-dissipating base. LED lamp beads are uniformly distributed on the aluminum substrate. A light-transmitting lampshade covers the aluminum substrate and portions below the LED lamp beads. Threaded assembling holes are formed in the center of the light-transmitting lampshade and the center of the aluminum substrate, wherein the specification of the threaded assembling holes is the same as that of the threaded assembling hole in the heat-dissipating base. The ceiling lamp further comprises a Bluetooth stereo which is assembled into the threaded assembling holes through threaded connection. The heat-dissipating base is provided with a power source. A mains supply supplies power to the power source. The ceiling lamp further comprises a controller. A control panel module is arranged in the controller connected with the power source. The power source is electrically connected with the LED lamp beads and the Bluetooth stereo. A remote control receiving module is further arranged in the controller. The Bluetooth stereo integrates a Bluetooth receiving module.
Owner:福建信实节能照明有限公司

Synchronous control system and method for multiple motors in CT machine

The invention relates to a synchronous control system for multiple motors in a CT machine. The synchronous control system comprises at least two direct current motors arranged on the two sides of a scanning bed, a main control computer used for sending PWM modulation codes and a synchronous processing unit used for conducting synchronous control. The invention further relates to a synchronous control method for the multiple motors in the CT machine. According to the method, at least two direct current motors are utilized to push the scanning bed to lift and conduct synchronous control, and inconformity of the stretching-out length of two pushing rods generated due to mechanical installation and inconformity of motion characteristics of all the motors can be compensated; at least two direct current motors are utilized to push a rack to conduct inclined motion and conduct synchronous control at the same time, and inconformity of the stretching-out length of the two pushing rods generated due to mechanical installation and inconformity of motion characteristics of all the motors can be compensated. According to the synchronous control system and method, synchronous motion of the scanning bed in the CT machine and the double motors of the rack is controlled, the scanning bed and the rack can conduct accurate off-position in the motion process, and thus the service life of products is prolonged.
Owner:SAINUO WEISHENG SCI & TECH BEIJING

Real-time multi-task remote network control system

The invention discloses a real-time multi-task remote network control system which comprises servers, control sites and terminals, wherein the control sites and the terminals are respectively connected with the servers. The servers are used for conducting coordination and management to the control sites and the terminals; the control sites are used for controlling external equipment, the external equipment and the control sites are connected with the terminal of the same server; and the terminals are used for receiving control site commands, controlling equipment below the terminal, and feeding control results of the equipment back to corresponding control sites. According to the real-time multi-task remote network control system, an existing internet is used for controlling terminal equipment in a remote mode, the control system utilizes a C/S structure to enable tasks to be distributed a Client end and a Server end, communication pay expenses are reduced, advantages of the two-end hardware environment can be used fully, and using and control modes are flexible and convenient. One system can control 90 devices simultaneously, a user can also conveniently increase and reduce the number of the devices according to requirements, high-efficiency task processing can be conducted, and real-time performance is high.
Owner:SHANGHAI YIKEFU INFORMATION TECH

Method for mediating proteins to synthesize and modify cerium nano material

The invention relates to a method for mediating proteins to synthesize and modify a cerium nano material. The method is characterized in that serum protein with certain concentration is mixed with cerous nitrate to prepare a precursor solution of the cerium nano material; the precursor solution has nucleation growth under a potassium hydroxide solution alkaline condition; a reaction temperature and reaction time are further controlled, so that a cerium nano cluster, cerium nano particles and a cerium nano chain material are obtained in a controlled manner, and the cerium nano cluster, the cerium nano particles and the cerium nano chain material have good uniformity, dispersion and stability. Corresponding characterization analysis is carried out on the nano material and the surface thereof, so that BSA or HAS for correspondingly modifying the surface of the cerium nano material has excellent biological compatibility, has a great number of modifying functional groups such as carboxyl and an amino group, and further can graft and modify other functional molecules, and therefore, a foundation is laid for further applying the method in a living body. According to the method, reaction is green and economical, a control way is flexible and easily controlled, and repeatability is strong.
Owner:中国人民解放军第三军医大学军事预防医学院 +1

Fluidized bed hydrogenation system and method of high solid content coal tar

The invention provides a fluidized bed hydrogenation system and method of high solid content coal tar. The system comprises a fluidized bed hydrogenation reactor, a high solid content coal tar supply device, a hydrogen supply device, a catalyst on-line supply device, a catalyst on-line unloading device, a first preheater, a second preheater, a gas-solid separation device, a gas-liquid separation device and a fractionation device; the catalyst on-line supply device is connected to a catalyst inlet of the fluidized bed hydrogenation reactor, and the catalyst on-line unloading device is connected to a feed outlet of the fluidized bed hydrogenation reactor; a reaction product outlet is connected to a feed inlet of the gas-liquid separation device through the gas-solid separation device, the gas-liquid separation device is provided with a hydrogen outlet and a product oil outlet, and the product oil outlet is connected to a feed inlet of the fractionation device. The fluidized bed hydrogenation system and method of the high solid content coal tar is used for a catalyst hydrogenation reaction of the high solid content coal tar, there is no need to conduct pretreatment to remove solid impurities, and the fluidized bed hydrogenation method has the advantages of being simple in technological process, flexible to operate, easy to control, high in conversion rate, long in running cycle and the like.
Owner:胜帮科技股份有限公司

Method for synthesizing modified cerium nanometer quantum dots under mediation of hyaluronic acid and product and application thereof

The invention relates to a method for synthesizing modified cerium nanometer quantum dots under mediation of hyaluronic acid and a product and application thereof. The method comprises the following specific steps: dissolving hyaluronic acid by adding water, then adding trivalent cerium salt, reacting for 0.5-1h under a magnetic stirring condition to synthesize a precursor, then adding an alkalinesolution into a reaction system, performing a nucleating and curing reaction, and purifying to remove unreacted inorganic ions and the unreacted hyaluronic acid to obtain the hyaluronic acid-coated cerium nanometer quantum dots. By the method, the reaction is environmentally friendly and economical, the regulative way is flexible and easy to control, and the repeatability is strong; the obtainedquantum dots are uniform in shape and size and good in dispersibility and stability; the HA for modifying the surfaces of the cerium nanometer quantum dots has excellent biocompatibility and a large amount of carboxyl functional groups for modifying, so that the HA can further modify other functional molecules in a grafting manner, and a foundation is laid for further in-vivo application of the cerium nanometer quantum dots.
Owner:重庆市人民医院

Radiant air conditioning control system, control method and storage medium

The invention discloses a radiation air conditioning control system, a control method and a storage medium; wherein, the control system includes: a radiation air conditioning system control board, a fresh air fan control board, a thermostat assembly, a gateway device, and an indoor central control panel; wherein, Take the radiant air conditioning system control board as the main node, connect the thermostat components, and the fresh air fan control board to form a local control network for the radiant air conditioner; take the gateway device as the main node, connect the radiant air conditioning system control board and the indoor central control panel respectively, Form a radiant air conditioner intelligent control network; the radiant air conditioner local control network and the radiant air conditioner intelligent control network are independent of each other. In the present invention, the local control network of the radiant air conditioner and the intelligent control network of the radiant air conditioner are independent of each other and do not affect each other. If the control terminal of either party fails, it will not affect the operation of the other control network, and will not affect the basic operation of the radiant air conditioner system. operation, and the control system of the present invention can also realize the intelligent control of the radiation air conditioning system.
Owner:NANJING LVHUI ENERGY TECH CO LTD

A synchronous control system and method for multiple motors in a CT machine

The invention relates to a multi-motor synchronous control system in a CT machine, which includes: at least two DC motors installed on both sides of a scanning bed; a main control unit for sending PWM modulation codes; a synchronous processing unit for synchronous control. The present invention also relates to a synchronous control method for multiple motors in a CT machine, which uses at least two DC motors to drive the lifting motion of the scanning bed and performs synchronous control, which can compensate for the inconsistency of the mechanical installation and the motion characteristics of each motor. The extension length of the two push rods is inconsistent; it uses at least two DC motors to push the tilting movement of the rack and simultaneously controls it synchronously, which can compensate for the extension of the two push rods caused by the inconsistency of the mechanical installation and the motion characteristics of each motor. inconsistent length. The synchronous control system and method of the present invention control the synchronous movement of the dual motors of the scanning bed and the frame in the CT machine, so that the scanning bed and the frame can accurately stop during the movement process, thereby prolonging the service life of the product.
Owner:SAINUO WEISHENG SCI & TECH BEIJING

A cascade composite dehumidification system

The invention relates to a cascade combined type dehumidification system which comprises a fresh air handling unit arranged on the mechanical floor of a building or on a roof and unit dehumidifiers disposed in a scattered manner in rooms of various users on various floors. The fresh air handling unit is used for the centralized processing of fresh air and the primary dehumidification of the fresh air, and provides the fresh air for the various users through a fresh air vertical shaft of the building. The unit dehumidifiers are used for depth dehumidification of air in the rooms of the various users. The cascade combined type dehumidification system has the advantages of being simple in structure, flexible in control, low in cost and high in energy efficiency ratio. The cascade combined type dehumidification system is applied to an apartment building, an office building or a commercial building, by means of controlling the fresh air handling unit and the unit dehumidifiers correspondingly, the aim of cascade dehumidification of the fresh air and room air can be achieved, in addition, the installed capacity of the fresh air handling unit can be reduced, the reversibility of thermodynamic systems of the fresh air handling unit and the unit dehumidifiers is improved, and therefore the aim of energy conservation is achieved.
Owner:HUNDRED TECH CO LTD

Electric heat tracing liquid level meter with RS485 monitoring function

The invention relates to an electric heat tracing liquid level meter with a RS485 monitoring function. The technical characters of the electric heat tracing liquid level meter are characterized by comprising a sealing flange, an electric control device, a connection flange, a measuring cylinder, an electric heating belt, a heat-insulating layer and a protection housing, wherein the electric control device has an MCU module, a power supply module, a measuring sensor, a temperature sensor, a RS 485 module, a sound-light alarm module and an electric heating belt control module; the MCU module is connected with the measuring sensor, the temperature sensor, the electric heating belt control module, the sound-light alarm module and the RS485 module; the electric heating belt control module is connected with the electric heating belt; and the RS 485 module is connected with a monitoring center via a RS485 communication line to achieve a monitoring function. With the electric control device, work of the electric heating belt can be controlled in real time according to on-site temperature, so normal work of the liquid level meter can be guaranteed; liquid level information and alarm information can be sent to the monitoring center via the RS485 communication line, so monitors can monitor; and a flexible and convenient control method can be provided.
Owner:TIANJIN XINCHENG INSTR & METER PLANT

Preparation method and adding method of cigarette smoke active oxygen scavenger

The invention discloses a preparation method and an adding method of a cigarette smoke active oxygen scavenger. The preparation method comprises the following steps: by taking alendronic acid modified nano cerium oxide CeAL as a raw material, carrying out surface valence state adjustment to form a cigarette smoke active oxygen scavenger which is suitable for cigarettes of different brands. The adding method comprises the following steps: adding a CeAL aqueous solution into a hookah; dropwise adding the CeAL mixed solution into tobacco leaves or a filter tip; adding CeAL powder to the junction of the filter tip and the tobacco leaves; and adding CeAL powder into the cigarette holder filter. According to the invention, nano cerium oxide CeAL is nano-particles with good dispersibility, and the nano-particles as metalloenzyme exert superoxide dismutase mimic activity, hydroxyl radical scavenging activity and catalase mimic activity, have thermal stability and are influenced by the valence state of the nano-particles and external pH to a certain extent; and when the CeAL product is added into cigarette products, active oxygen in cigarette smoke can be effectively removed, and harm of smoking to health is relieved.
Owner:中国人民解放军东部战区疾病预防控制中心

Magnetic inductive liquid level monitoring system based on mobile communication network

The invention relates to a magnetic inductive liquid level monitoring system based on a mobile communication network. The technical feature is that the system comprises a magnetic inductive liquid level monitoring device, the mobile communication network and a remote mobile phone client. The magnetic inductive liquid level monitoring device comprises a cylindrical shell and an electric control device. The electric control device comprises an MCU module, a power supply module, a Hall sensor, a mobile communication module and a sound and light alarm module. The MCU module is connected with the Hall sensor and realizes a liquid level measuring function through magnetic steel. The MCU module is connected with the sound and light alarm module and realizes a sound and light alarm function. The MCU module is connected with the mobile communication module and is connected with the remote mobile phone client through the mobile communication network, thereby realizing a remote monitoring function. According to the system, the magnetic inductive liquid level monitoring device and the remote mobile phone client are connected together through the mobile communication network, a remote monitoring worker can monitor liquid level information whenever and wherever possible, the abnormal condition can be processed rapidly, and the control mode is flexible and convenient.
Owner:TIANJIN XINCHENG INSTR & METER PLANT

A hyaluronic acid-mediated method for synthesizing and modifying cerium nanometer quantum dots and its products and applications

The invention relates to a method for synthesizing modified cerium nanometer quantum dots under mediation of hyaluronic acid and a product and application thereof. The method comprises the following specific steps: dissolving hyaluronic acid by adding water, then adding trivalent cerium salt, reacting for 0.5-1h under a magnetic stirring condition to synthesize a precursor, then adding an alkalinesolution into a reaction system, performing a nucleating and curing reaction, and purifying to remove unreacted inorganic ions and the unreacted hyaluronic acid to obtain the hyaluronic acid-coated cerium nanometer quantum dots. By the method, the reaction is environmentally friendly and economical, the regulative way is flexible and easy to control, and the repeatability is strong; the obtainedquantum dots are uniform in shape and size and good in dispersibility and stability; the HA for modifying the surfaces of the cerium nanometer quantum dots has excellent biocompatibility and a large amount of carboxyl functional groups for modifying, so that the HA can further modify other functional molecules in a grafting manner, and a foundation is laid for further in-vivo application of the cerium nanometer quantum dots.
Owner:重庆市人民医院

CAN (Controller Area Network) bus remote monitoring system based on electric heat tracing liquid indicator

The invention relates to a CAN (Controller Area Network) bus remote monitoring system based on an electric heat tracing liquid indicator. The CANbus remote monitoring system based on the electric heat tracing liquid indicator is technically characterized by comprising the electric heat tracing liquid indicator, a CAN bus and a remote monitoring center. The electric heat tracing liquid indicator comprises a sealing flange, an electronic control device, a connecting flange, a measuring cylinder, an electric heat tape, an insulating layer and a protective housing; the electronic control device comprise an MCU (Microprogrammed Control Unit) module, a power module, a measuring sensor, a temperature sensor, a CAN module, an audible and visual alarm module and an electric heat tape control module; the MCU module is respectively connected with the measuring sensor, the temperature sensor, the electric heat tape control module, an audible and visual alarm and the CAN module; the electric heat tape control module is connected with the electric heat tape; the CAN module is connected with the remote monitoring center through the CAN bus to realize a remote monitoring function. According to the CANbus remote monitoring system based on the electric heat tracing liquid indicator provided by the invention, the on-site liquid indicator is connected with the remote monitoring center throughthe CAN bus, so that remote monitoring personnel can remotely monitor the liquid indictor anytime anywhere, and the control mode is flexible and convenient.
Owner:TIANJIN XINCHENG INSTR & METER PLANT

Remote wireless monitoring system based on infrared quartz glass tube liquid level gauge

The invention relates to a remote wireless monitoring system based on an infrared quartz glass tube liquid level gauge. The remote wireless monitoring system is technically characterized by comprising the infrared quartz glass tube liquid level gauge, a wireless communication network and a remote mobile phone client side, wherein the infrared quartz glass tube liquid level gauge comprises a liquid level gauge body, a quartz glass tube, an infrared ray emitting diode, an infrared ray receiving diode and an electric control device; the electric control device comprises an MCU (Microprogrammed Control Unit) module, a power supply module, a wireless communication module and a sound-light alarm module; the MCU module is connected to the infrared ray emitting diode and the infrared ray receiving diode, so that the liquid level measuring function can be achieved; the MCU module is connected to the wireless communication module and is also connected to the remote mobile phone client side. The remote wireless monitoring system is reasonable in design; the wireless communication network is used for connecting an on-site liquid level gauge with the remote mobile phone client side; the remote monitoring staff can remotely monitor the liquid level gauge at anytime and anywhere; the control method is flexible and convenient.
Owner:TIANJIN XINCHENG INSTR & METER PLANT
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