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41results about How to "Meet the requirements of integration" patented technology

Integrated device in low power dissipation for digital controlling magnetic bearing

In use for initiative controlling magnetic bearing, the disclosed device includes interface circuit, DSP system, and power module. Through interface circuit, DSP obtains data including displacement signal of rotor of magnetic bearing, coil current, signal of rotate speed etc. According algorithm, calculation is carried out for creating controlling quantities. After PWM modulation, the modulated PWM signal of controlling quantities passed through pulse protection dirve circuit is transferred to full bridge type transduction circuit composed of power devices. The full bridge type transduction circuit generates control current needed for winding of magnetic bearing so as to realize initiative controlling magnetic bearing. The invention realizes integration design for digital controller and digital power amplifier of magnetic bearing. Thus, integrity of controller of magnetic bearing is raised greatly, size and weight are reduced, and power consumption of the controller is lowered.
Owner:BEIHANG UNIV

Time synchronization and real-time data acquisition method for multi-sensor combined navigation system

The invention relates to a time synchronization and real-time data acquisition method for a multi-sensor combined navigation system, comprising the steps that time synchronization is realized on the basis of a linux local clock, and real-time modification of a standard linux system is carried out, so that the operating system running on the computing carrier meets the hard real-time requirement; data acquisition and time synchronization are realized, so that the time marks of the data acquired by all the sensors are kept consistent with the standard GPS, then entering a buffer area and fusingthe combined navigation data to prepare the combined navigation data can be carried out; the data acquisition is synchronous with the time, and the implementation mode is as follows: the PPS signal output by the GPS receiver serves as a reference, the local clock of the calculation carrier is corrected, and then the time scale is marked by utilizing the local clock of the calculation carrier as other sensors. Under the condition that additional hardware is not needed, time synchronization precision within 10 ms can be achieved, the requirements of multi-sensor data fusion can be met, and programming is simple, application range is wide, and transplant is convenient.
Owner:WUHAN UNIV

Cell networking theft-proof parking shed system and method for preventing vehicles in parking sheds from being stolen

The invention discloses a cell networking theft-proof parking shed system, which comprises a plurality of parking sheds in a cell. The system also comprises a parking space controller, a vehicle detection device, a theft-proof device and a master control unit, wherein the vehicle detection device is arranged on a parking space of each parking shed and connected with the parking space controller, and the parking space controller is connected with the master control unit; and the theft-proof device comprises an electronic theft-proof bolt and a parking space lock control device, and both the electronic theft-proof bolt and a parking space lock console are connected with the parking space controller. Through the technology of digital communication and remote control, the running states of the vehicles in the parking sheds can be transmitted to the master control unit so as to effectively solve the difficult problem that the vehicles in the parking sheds are difficult to monitor; and simultaneously, through the use of the electronic theft-proof bolt and the parking space lock control device, whether the vehicles belong to normal leave can be judged. In addition, the invention also provides a method for preventing the vehicles in the parking sheds from being stolen.
Owner:重庆爱车港停车库设备技术有限公司

Modeling assisting and budget exporting system for residential interior design informatization software

InactiveCN106096752ARealize BIM informatizationGood modelingGeometric CADForecastingInformatizationPersonalization
The present invention relates to the field of the interior design software system, and discloses a modeling assisting and budget exporting system for residential interior design informatization software. The system comprises a one key decoration module, a single selection decoration module, a model establishment module, and an export module. The one key decoration module comprises a decoration series selection module and a room matching module that are used for arrangement of different room types; the single selection decoration module comprises a decoration information module and an editing module; the model establishment module establishes a model according to decoration information set by the one key decoration module and the single selection decoration module; and the export module is used for exporting a price list and a detail list. According to the system disclosed by the present invention, based on a standardized database, modeling and budgeting functions are carried out on the interior decoration. One key decoration module can meet requirements of room design integration for a user; the single selection decoration can meet requirements of room design individuation for the user; and the arrangement of the export module enables the user to have an intuitive understanding of materials and costs that are required to implement the project.
Owner:HANGZHOU GOUJIA NETWORK TECH CO LTD

Calibration method and arrangement structure of automatic driving environment perception sensor and vehicle

The invention relates to the field of automatic driving sensors, in particular to a calibration method and arrangement structure of an automatic driving environment perception sensor and a vehicle. According to the calibration method, different calibration methods are adopted for different sensors, based on utilization and processing of data such as laser point clouds, pose transformation of coordinate systems of different sensors relative to a vehicle coordinate system is carried out through different methods, the automation degree of automatic driving environment perception sensor calibration is improved, the accuracy is high, the requirement of multi-sensor fusion is met; 360-degree uniform coverage of a vehicle body is met, meanwhile, sensor redundancy of a certain degree is achieved,under the condition that an individual sensor breaks down, the surrounding environment can be normally monitored, the automatic driving safety is improved, and through the arrangement method of the embodiment, on the premise that the perception performance is guaranteed, mutual cooperation is achieved to the maximum extent, the using number of sensors is reduced as much as possible, and cost is effectively reduced.
Owner:BEIJING NEW ENERGY VEHICLE TECH INNOVATION CENT CO LTD

Dynamic coupling device cooling and lubricating system of hybrid electric vehicle

The invention provides a dynamic coupling device cooling and lubricating system of a hybrid electric vehicle. The system comprises a dynamic coupling device external cooling circulatory system and a dynamic coupling device shell internal cooling lubricating circulatory system. The dynamic coupling device external cooling circulatory system comprises an oil pan on the lower portion of a dynamic coupling device shell, an oil inlet, an oil outlet, a radiator and a power oil pump, wherein the oil inlet and the oil outlet are formed in the bottom of the oil pan, the inlet end of the radiator is connected with the oil outlet, one end of the power oil pump is connected with the outlet end of the radiator, the other end of the power oil pump is connected with one end of an oil pipe, and the oil pipe penetrates through the oil inlet in the bottom of the oil pan, extends into the dynamic coupling device shell and is communicated with the dynamic coupling device shell internal cooling lubricating circulatory system. The dynamic coupling device cooling and lubricating system integrates conveying, storing, cooling and filtering, the space size and the weight of the system are reduced, and the defects that the structure is complex, the size is large and cost is high after an existing dynamic coupling device cooling and lubricating system is separated can be overcome.
Owner:CHONGQING UNIV +2

Method for preparing and regenerating rhizopus oryzae protoplast for producing L-lactic acid at high yield

InactiveCN102061266AUniform sizeHigh number of preparationsFungiMicroorganism based processesBiotechnologySpore
The invention relates to a method for preparing and regenerating a rhizopus oryzae protoplast for producing L-lactic acid at high yield, comprising the following steps of: A. preparing a rhizopus oryzae spore suspension; B. preparing a seed culture liquid; C. preparing a hypha suspension; D. enzymolyzing a cell wall; E. separating a protoplast; and F. regenerating the protoplast. The rhizopus oryzae protoplast prepared with the method disclosed by the invention is in an approximately-circular shape and has higher activity; the preparation quantity and the regeneration rate of the rhizopus oryzae protoplast can respectively reach 2.74*10<6> / mL and 6.8 percent to the maximum extent. The method is easy to operate, has low requirements for the equipment, and provides a technical reference for preparing and regenerating the rhizopus oryzae protoplast. By using the method disclosed by the invention, the protoplast can be quickly prepared with short regeneration period and high regeneration speed; and the preparation efficiency of the protoplast can be effectively improved. The protoplast prepared with the method provided by the invention completely meets the requirement for fusing the protoplast. The invention provides an operation method with practical significance for preparing and regenerating the protoplast.
Owner:HEFEI UNIV OF TECH

Micro colloid particle fertilizer and application thereof

The invention provides a micro colloid particle fertilizer and application thereof. The micro colloid particle fertilizer is characterized by being prepared through the following steps: spraying a dispersion liquid to the surface of completely suspended micro chemical fertilizer raw material particles, quickly performing spray-drying, and finally blending colloid-coated fertilizer particles different in nutrients according to the needs. The fertilizer is dispersed in water to form a dispersion rather than a non-completely dissolved solution; even the micro particles of a slight soluble or insoluble chemical fertilizer after being coated can be evenly dispersed in water. Furthermore, the micro colloid particle fertilizer, as a water-soluble fertilizer, is applied to a drop irrigation fertilizer, a spray irrigation fertilizer, a flushing fertilizer and a leaf fertilizer, or applied to preparing a high-concentration liquid fertilizer; the micro colloid particle fertilizer is capable of taking the place of the existing water-soluble fertilizers and dissolved in water to form a colloid dispersion; the colloid-coated chemical fertilizer particles are transportable in soil so that the absorbing ability of plants to nutrients can be enhanced. The micro colloid particle fertilizer belongs to a new generation water-fertilizer integrated water-soluble fertilizer.
Owner:南宁汉和生物科技股份有限公司

Chemosynthetic water-soluble fertilizer and production method and application thereof

The invention discloses a production method of a chemosynthetic water-soluble fertilizer, the chemosynthetic water-soluble fertilizer prepared through the production method of the chemosynthetic water-soluble fertilizer and application of the chemosynthetic water-soluble fertilizer. According to the method, production is performed by taking industrial diammonium hydrogen phosphate and / or monopotassium phosphate, nitrogenous fertilizer and potash fertilizer as main raw materials through hydrogen bonding, acid regulating by adding alkaline and the like. The production method is little in investment, few in production procedures, short in production cycle and low in production cost. The chemosynthetic water-soluble fertilizer is appropriate in acidity, capable of achieving the good crystalline state, stable and uniform in composition, not prone to be hardened and damped, capable of being fully dissolved in water, easy to absorb and convert, high in fertilizer utilization rate, significant in synergistic effect and suitable for being applied to acidic or meta-acidic soil and facility greenhouses.
Owner:SHANDONG SENHE BIO TECH CO LTD

Integrated vehicle lubrication device

The invention discloses an integrated vehicle lubrication device, more particularly to an integrated radiating lubrication device used for vehicles. A lubrication oil tank, a heat exchanger, a filter and a breather are intensively mounted inside the lubrication oil tank as a modularized unit which is connected with a vehicle transmission gear via a corresponding interface, fluid of an engine cooling system is utilized to cool and heat lubricating oil; according to the proposal of the invention, all the components of the lubrication system are integrated so as to reduce spatial dimension of the system and weight of the components as well as simplify system connection. Taking the matching among all the components of the lubrication system for power transmission gear into comprehensive account, the proposal achieves the purpose of reasonably arranging all the components and lowering system resistance to the maximal extent, so that the performance of the entire system is optimized and the purpose of 'light weight, small volume, few components and reduced consumption' of the system is achieved on the basis of ensuring the satisfaction for power transmission, overall performance demand and reliability.
Owner:CHINA WANBAO ENG

Silicon-based lithium niobate hybrid integrated electro-optic modulator compatible with CMOS technology and manufacturing method thereof

The invention discloses a silicon-based lithium niobate hybrid integrated electro-optic modulator compatible with a CMOS technology. The modulator comprises a silicon substrate wafer with an integrated circuit structure, optical-grade lithium niobate thin film bonded to the upper surface of the silicon substrate wafer, electro-optic modulator optical waveguides of the optical-grade lithium niobatethin film, a metal thin film electrode prepared on the upper surface of the optical-grade lithium niobate thin film and an electrical interconnection structure between the metal thin film electrode and the integrated circuit structure. According to the modulator, the hybrid integration of a silicon-based integrated circuit and the lithium niobate electro-optic modulator is achieved through the conventional CMOS technology, the requirements for integration of optical devices and signal processing modules in the development of next-generation optical communication technologies can be met, performance, size, power consumption, reliability and other indexes of optical modules are further improved, and the manufacturing cost of the optical modules is reduced. The invention further discloses amanufacturing method of the silicon-based lithium niobate hybrid integrated electro-optic modulator compatible with the CMOS technology.
Owner:天津领芯科技发展有限公司

Frequency calibration system of electrically tuned duplexer

ActiveCN106099267ARealize frequency calibration functionReal-time calibration frequencyWaveguide type devicesElectricityMicrowave
The invention discloses an automatic frequency calibration system of an electrically tuned duplexer, and relates to the field of microwave communication. The system comprises a frequency calibration unit, a first switch, a second switch, a generating tuned filter, a receiving tuned filter, a circulator, a radio frequency self-circulator, a low-noise amplifier and the like, wherein the frequency calibration unit is used for carrying out variable frequency amplifying and filtering on received signals, sequentially sampling, comparing, judging and counting filtered signals, and outputting a specified generating frequency to the generating tuned filter or outputting a specified receiving frequency to the receiving tuned filter after a preset threshold is reached. Through cooperation of the frequency calibration unit and the switches, the electrically tuned duplexer achieves automatic frequency calibration and has the characteristics of high intelligent and automatic degrees; the work frequency can be automatically changed and calibrated within a wide frequency range through electromechanical combination and software-hardware combination; the tuning speed is high; the accuracy and the stability of the work frequency of the duplexer are kept in high and low temperature environments; and the frequency calibration system is the automatic frequency calibration system of the electrically tuned duplexer with high universality and high integration.
Owner:NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP

Converter power module

The invention provides a converter power module, which comprises a capacitor assembly and a power assembly. The converter power module also comprises a natural heat dissipation wind channel and a forced heat dissipation wind channel, which are arranged side by side. The wind direction in the natural heat dissipation wind channel is the same with or opposite to the wind direction in the forced heatdissipation wind channel. The capacitor assembly is arranged in the natural heat dissipation wind channel; and the power assembly is arranged in the forced heat dissipation wind channel. The converter power module has the advantages of good heat radiation effect and low cost and high integration degree and the like.
Owner:ZHUZHOU CSR TIMES ELECTRIC CO LTD

Hot plates of wall type solar energy collector and manufacturing method

A solar ¿C energy heat collector of wall heat plate type is prepared as setting heat collector in building wall facing to sunlight, forming said collector by N numbers of rectangular heat plates being laid in parallel and tilted way, forming heat collection tube by welding metal shell to form cavity, setting heat exchanger above heat collection tube, connecting heat exchange cavity said exchanger to heat collection tube and setting insulation layer under heat plate. The method for preparing said heat collector is also disclosed.
Owner:蚌埠市华兴高新技术发展有限责任公司

Distributed type aircraft monitoring system

The invention discloses a distributed type aircraft monitoring system of an electric testing type monitoring control system. The distributed type aircraft monitoring system comprises an optical fiber channel data interface card, a speed sensor, a temperature sensor and a bus testing device, and the bus testing device, the speed sensor and the temperature sensor are all connected with the optical fiber channel data interface card. According to the distributed type aircraft monitoring system, distributed type management on aviation electronic devices can be achieved, and the aircraft integration capacity is improved.
Owner:CHENGDU CHENGDIAN GUANGXIN TECH

Integrated device in low power dissipation for digital controlling magnetic bearing

In use for initiative controlling magnetic bearing, the disclosed device includes interface circuit, DSP system, and power module. Through interface circuit, DSP obtains data including displacement signal of rotor of magnetic bearing, coil current, signal of rotate speed etc. According algorithm, calculation is carried out for creating controlling quantities. After PWM modulation, the modulated PWM signal of controlling quantities passed through pulse protection dirve circuit is transferred to full bridge type transduction circuit composed of power devices. The full bridge type transduction circuit generates control current needed for winding of magnetic bearing so as to realize initiative controlling magnetic bearing. The invention realizes integration design for digital controller and digital power amplifier of magnetic bearing. Thus, integrity of controller of magnetic bearing is raised greatly, size and weight are reduced, and power consumption of the controller is lowered.
Owner:BEIHANG UNIV

Low-cost and high-efficiency suspension liquid compound fertilizer and preparation method thereof

The invention relates to the field of liquid fertilizers, and in particular, relates to a preparation method of a low-cost liquid compound fertilizer having high-efficiency suspension property. The preparation method is characterized in that a precipitate in the liquid compound fertilizer is isolated, and by assisting of humic acid and aminosulfonic acid, the precipitate and clay minerals, zinc hydroxide, ferric hydroxide, aluminum hydroxide and hydrated silicon oxide are ground and assembled into a sol in a grinding machine, so the precipitate has colloidal properties; the sol is protected by emulsified wax, so the sol has excellent dispersion, suspension and agglomeration resistance in an aqueous phase. The suspension fertilizer prepared by the method has high adaptability, is applicable for soluble fertilizers, micro soluble fertilizers and various coarse powders, crude liquids and raw ores containing nutrient elements, and especially is applicable for converting a traditional compound fertilizer into a high-efficiency suspension liquid fertilizer suitable for water and fertilizer integration. Compared with the traditional clear liquid fertilizer, the suspension fertilizer has low requirements on solubility and purity of raw materials, and greatly reduces the cost of the liquid fertilizer.
Owner:CHENDU NEW KELI CHEM SCI CO LTD

Method for preparing and regenerating rhizopus oryzae protoplast for producing L-lactic acid at high yield

The invention relates to a method for preparing and regenerating a rhizopus oryzae protoplast for producing L-lactic acid at high yield, comprising the following steps of: A. preparing a rhizopus oryzae spore suspension; B. preparing a seed culture liquid; C. preparing a hypha suspension; D. enzymolyzing a cell wall; E. separating a protoplast; and F. regenerating the protoplast. The rhizopus oryzae protoplast prepared with the method disclosed by the invention is in an approximately-circular shape and has higher activity; the preparation quantity and the regeneration rate of the rhizopus oryzae protoplast can respectively reach 2.74*10<6> / mL and 6.8 percent to the maximum extent. The method is easy to operate, has low requirements for the equipment, and provides a technical reference forpreparing and regenerating the rhizopus oryzae protoplast. By using the method disclosed by the invention, the protoplast can be quickly prepared with short regeneration period and high regeneration speed; and the preparation efficiency of the protoplast can be effectively improved. The protoplast prepared with the method provided by the invention completely meets the requirement for fusing the protoplast. The invention provides an operation method with practical significance for preparing and regenerating the protoplast.
Owner:HEFEI UNIV OF TECH

Intelligent electric sofa bed

The invention provides an intelligent electric sofa bed, which is characterized in that a screw type motor arranged in a functional iron rack drives a slide slot frame composed of a pushing tube and a pushing embedded tube of a movement piece to move forwards and backwards, so that a seat bed body connected on the functional iron rack can be driven to move forwards and backwards, and three movable supporting points arranged on metal transmission pieces at the two sides of the bed body are driven to spread and contract, and therefore, a backrest bed body is pulled to ascend and descend, so as to realize erecting and falling of the backrest bed body, namely conversion between a sofa and a bed is realized. The intelligent electric sofa bed disclosed by the invention realizes a technology of spreading and flatly laying the sofa with single seat or more into the sofa bed, and achieves the purpose of converting the sofa with length of three seats and double seats into the bed; integration requirements of the sofa and the bed are achieved by the motor and the connected iron rack, especially a design idea that the sofa bed serves as a sofa in daytime and serves as a bed in night on appearance is achieved; the design requirements of various designers on sofa appearance can be realized; besides, on comfort level, a design process of a mattress is used for reference on the basis of the original sofa process, so that human feeling for sitting and sleeping achieves considering user requirements of balancing; and meanwhile, sleep quality is also ensured.
Owner:SHANGHAI YOUSHANG HOUSEHOLD

Balcony balustrade integrated fitting type solar water heater

The invention provides a balcony balustrade integrated fitting type solar water heater which relates to the field of articles for daily use. The solar water heater comprises an aluminum alloy framework, a heat-collecting tube, a heat water storage tank and a cold water storage tank; the heat water storage tank is embedded in the upper part of the aluminum alloy framework; a right end of the heat water storage tank is provided with a hot water outlet; the cold water storage tank is embedded at the lower part of the aluminum alloy framework; a left end of the cold water storage tank is provided with a cold water inlet; an upper end and a lower end of the heat-collecting tube are provided with a water inlet and a water outlet; the heat-collecting tube is connected with the heat water storage tank and the cold water storage tank in a threaded mode. A heat insulation layer is installed in the slit between the heat water storage tank and the aluminum alloy framework; an inner tube of the heat-collecting tube is seamless stainless steel tube, wherein the outer wall of the steel tube is coated with a heat absorption layer; and the outer tube is a high strength concentric glass tube. The solar water heater can replace original fence columns and acts as an enclosed balcony fitting; the solar water heater is designed and installed in an integrated mode and can be dismounted for maintenance; the solar water heater is perfectly combined with buildings, which is safe and reliable.
Owner:王姗珊

Optical fiber sampling optical grating and planar optical wave guide sumpling grating

The invention relates to an optical fiber sampling grating and a plane light waveguide sampling grating, where the refractivity variation of the gratings along the fiber core / waveguide axis is periodical and expressed by product of refractivity function and sampling function of a mother grating, where the refractivity function of the mother grating is deltan(z)=delta n0 Sin (4 pi n0 z / lambda B), wherein delta n0 is refractivity variation amplitude of grating, ne is effective refractivity of fiber core / waveguide, and lambdaB is Prague wavelength of grating; Fourier transform of the sampling function has a property that its two sides are symmetrical and change linearly or approximately linearly, adopting Sinc2, second-order rational function or Sinc-Sinc2 combined function; and the Sinc2 sampling optical fiber grating and Sinc2 sampling plane waveguide grating have linear or approximately linear delay spectrum envelopes and paths of each wavelength are symmetrical, able to generate large numbers of constant delay steps less than 1ps and allow wideband operation of signal.
Owner:SHENZHEN INST OF ADVANCED TECH

Wireless Bluetooth bed head sound box

The invention discloses a wireless Bluetooth bed head sound box. The wireless Bluetooth bed head sound box includes a sound box body, a light body, a music player, an alarm clock and an adjustment control panel; the top of the sound box body is provided with the light body; one side of the sound box body is provided with the music player; the other side of the sound box body is provided with the alarm clock; and the lower part of the sound box body is provided with the adjustment control panel. With the above technical schemes of the invention adopted, the wireless Bluetooth bed head sound box has complete functions, so that a plurality of kinds of functions can be integrated on such a wireless Bluetooth bed head sound box.
Owner:CHANGZHOU KEHONG ELECTRONICS DEVICES

NB-IoT and Internet-of-Things satellite fusion antenna

The invention relates to an NB-IOT and Internet-of-Things satellite fusion antenna. The fusion antenna comprises an NB-IOT transceiver antenna (3), a row cloud receiving antenna, a row cloud transmitting antenna, a power divider, an A-path SMA-K port (7) and a B-path SMA-K port (8). The NB-IOT transceiver antenna is connected to a NB-IOT transceiver channel, the row cloud receiving antenna is connected to a row cloud receiving channel, and the NB-IOT transceiver channel and the row cloud receiving channel are combined and connected to the A-path SMA-K port (7) through the power divider; and the row cloud transmitting antenna is connected to the row cloud transmitting channel. According to the scheme, the NB-IOT transceiver antenna and the row cloud transmitting and receiving antenna are integrated in one antenna, so that the occupied space is smaller, the antenna adopts an active antenna design, the requirement of integration of a celestial body and a terminal can be met, and the requirement of separation of the antenna and the terminal can also be met.
Owner:CHENGDU CORESAT TECH CO LTD +1

Water-soluble fertilizer and preparation method

A water-soluble fertilizer. The invention belongs to the field of a crop fertilizer and specifically relates to a nano-scale multi-nutrient water-soluble fertilizer. The water-soluble fertilizer is composed of urea, monoammonium phosphate, potassium dihydrogen phosphate, Chinese medical stone, dolomite and other additives. The water-soluble fertilizer is prepared by the following steps: firstly micronizing Chinese medical stone and dolomite and carrying out water dissolution treatment, dissolving the mixture in water and simultaneously adding urea, monoammonium phosphate and potassium dihydrogen phosphate to be dissolved together, sending the mixture into a high pressure homogenizer for homogenization and refining to nanometers, adding the additives and mixing, concentrating and crystallizing, filtering and drying, crushing and packaging to obtain the nano-scale multi-nutrient water-soluble fertilizer. The water-soluble fertilizer has advantages of uniform color and granularity, adequate nutrient and fine particles and helps plants absorb nutrients. By the use of the water-soluble fertilizer, absorption and utilization of the fertilizer are raised for crops. Meanwhile, soil structure can be improved. Soil hardening is prevented, soil granulation is enhanced, microbial activity of plant roots is raised, and product quality of crops is promoted. The water-soluble fertilizer has good water solubility, is irrigated with water, will not block pipelines, and is suitable for integration of water and fertilizer.
Owner:河北中仁化肥集团有限公司

Optical fiber sampling optical grating and planar optical wave guide sumpling grating

An optical fiber sampling grating and a planar optical waveguide sampling grating, the refractive index of the grating along the core / waveguide axis is periodically distributed, and is represented by the product of the refractive index function and the sampling function of the mother grating; the mother grating The refractive index function is δn(z)=δn0Sin〔4πnez / λB〕, wherein: δn0 is the refractive index variation range of the grating, ne is the effective refractive index of the fiber core / waveguide, and λB is the Bragg wavelength of the grating; the sampling function The Fourier transform has the characteristics of bilateral symmetry and linear or approximately linear change, using functions such as Sinc2, second-order rational functions or Sinc-Sinc2 combination functions. The Sinc2 sampling fiber grating and Sinc2 sampling planar waveguide grating have a linear or approximately linear delay spectrum envelope, and each wavelength channel is symmetrical, can produce a large number of constant delay steps less than 1ps and can allow signal broadband work .
Owner:SHENZHEN INST OF ADVANCED TECH

A kind of micromicelle particle fertilizer and its application

The invention provides a microcolloid particle fertilizer and its application, which is characterized in that the dispersion liquid is sprayed onto the surface of the completely suspended fine chemical fertilizer raw material particles, sprayed and dried rapidly, and the fertilizer particles with different nutrients coated by the colloid are mixed according to the needs to obtain A microcolloid particle fertilizer. After the fertilizer is dispersed in water, it forms a dispersion liquid rather than a completely dissolved solution. Even if the fertilizer is slightly soluble or insoluble, the fine particles presented after coating are uniformly dispersed in water. Further, as a water-soluble fertilizer, the micromicelle fertilizer can be used as a water-soluble fertilizer for drip irrigation, sprinkler irrigation, flushing fertilization, foliage fertilizer or high-concentration liquid fertilizer, which can replace the existing water-soluble fertilizer, and form a colloidal dispersion after being dissolved in water. The mulched fertilizer particles are transportable in the soil, increasing the uptake of nutrients by plants. It belongs to a new generation of water-soluble fertilizer integrating water and fertilizer.
Owner:南宁汉和生物科技股份有限公司

Composite polishing machine tool and polishing method

The invention provides a polishing complex machine tool and a polishing method. The polishing complex machine tool comprises a motion platform, a circulating system, a magneto-rheological polishing device, a jet flow polishing device and a controller. An optical element is installed on the motion platform and is driven by the motion platform to move on the horizontal plane. The magneto-rheological polishing device or the jet flow polishing device is controlled by the controller for conducting polishing on the surface of the optical element. The circulating system provides a polishing solution A for the magneto-rheological polishing device, and provides a polishing solution B or water for the jet flow polishing device. The controller is used for controlling the movement of the motion platform and the work sequence of the magneto-rheological polishing device and the jet flow polishing device. The advantages of the two methods of magneto-rheological polishing and jet flow polishing are combined for the polishing complex machine tool provided by the invention, a multilevel polishing method or a polishing and cleaning combined processing method can be achieved, and the problems that an existing single polishing device is limited in processing capability, and mounting and dismounting and adjustment are too frequent and scratching and pollution can be easily caused since processing is conducted on two machine tools correspondingly are solved.
Owner:INST OF MACHINERY MFG TECH CHINA ACAD OF ENG PHYSICS

A method for producing macroelement water-soluble fertilizer at low cost

The invention relates to a low-cost manufacturing method for a water-soluble fertilizer containing macroelements. The method comprises the following steps: (1) adding ammonium phosphate into a dissolving tank so as to form ammonium phosphate slurry I and ammonium phosphate slurry II; (2) feeding the ammonium phosphate slurry I into a mixer so as to form co-dissolved slurry I and co-dissolved slurry II; (3) feeding a bed charge into a pelletizer; (4) delivering the co-dissolved slurry I into a tubular reactor so as to form a semi-finished product III; (5) subjecting the semi-finished product III to drying, screening and cooling so as to obtain the water-soluble fertilizer containing macroelements; (6) delivering the ammonium phosphate slurry II and the co-dissolved slurry II into a slurry preparing tank so as to prepare co-dissolved slurry IV; (7) feeding a bed charge into the pelletizer; (8) delivering the co-dissolved slurry IV into the tubular reactor so as to form a semi-finished product VI; and (9) subjecting the semi-finished product VI to drying, screening and cooling so as to obtain a conventional composite fertilizer. According to the method provided by the invention, production procedures are reduced and process flow is shortened; and the method has the significant advantages of little investment and low energy consumption.
Owner:郑秀兴 +3
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