664results about How to "Achieve coupling" patented technology

A drive assembly for use in a drug delivery device is proposed, the drive assembly comprising: a housing having a proximal end and a distal end; an axis extending between the proximal end and the distal end; at least one drive member; a piston rod adapted to be driven along the axis by the drive member; an indicator adapted to provide positional information about a position of the piston rod relative to the proximal end, wherein the indicator and the piston rod are configured to convert a movement of the piston rod with respect to the housing into a rotational movement of the indicator. Additionally, a drug delivery device comprising the drive assembly is provided for.

It relates to a method and device of changing solar energy to chemical energy. It accumulates the solar energy and changing it to heat energy ranging from 150deg.C-300deg.C, providing reaction heat for the liquid fuels, allowing the middle and low level solar energy changing and stored into high level chemical energy, with the liquid being carbinol or dimethyl ether synthetic fuel, with the catabolite being hydrogen and monoxide formed gas. It can be used for multi purposes, providing fine synthetic fuel and material for customers.

The invention discloses a multi-field coupled environment simulating and online monitoring/observing system. The system comprises: a main body test box provided with a quartz observing window and an infrared window; a mechanical loading module comprising two coaxially arranged mechanical loading shafts and respectively connected with the main shafts of a universal testing machine and a sample clamping device; a multi-field service environment module arranged outside the main body test box and comprising an infrared laser rapid heating device, an X-ray radiation device, a corrosion gas box and a cooling system and respectively used for realizing heating, irradiating, corroding and cooling environments; and a damage online monitoring/observing module comprising a surface/interface strain real-time observation system, an in-situ fracture behavior observation system, a damage signal collecting system and an infrared thermodetector which are arranged outside the main body test box, and damage signal detectors arranged at the upper end and the lower end of a tested sample, and wherein devices contained in the damage online monitoring/observing module are respectively used for real-time capturing of strain information, in-situ fracture image information, damage information and temperature information, and synchronously run through a cynchronous control system.

The invention discloses a novel laser confocal microscopic endoscope with high resolution, a telescopic image transmission system is used for replacing optical fiber bundles or a single optical fiber, the laser is coupled into a tissue in vivo, a reflected light or a fluorescent signal is coupled into a detector in vitro, a fluorescent image with high resolution and contrast is obtained, meanwhile an endoscope probe diameter is reduced; a confocal scanning mechanism is arranged in vitro, the high performance confocal scanning is obtained, meanwhile the dimension of the endoscope probe can not be increased, and the confocal scanning mechanism is compatible with an existing hard tube endoscope, thereby implementing the high-performance histopathology diagnosis in vivo.

The invention discloses a hydrogen production system by utilizing thermochemical reaction thermally driven by solar energy under medium-lower temperature, which comprises a material supplying device for storing materials required for producing hydrogen, a material mixing device for mixing raw materials and non-reactants, a material measuring device for controlling the volume of raw materials sent into a preheater per unit time, the preheater for preheating raw materials, a solar energy absorption reactor for driving raw material to carry out reforming reaction by utilizing absorbed solar energy heat, a solar energy collector for aggregating solar energy with low energy flow density into medium-lower temperature heat energy with high energy flow density in a form of line focus so as to provide heat for material reforming reaction, a condenser for cooling reaction products, a gas-liquid separator for separating gas and liquid of a mixture, and a PSA (pressure swing adsorption)device for separating the obtained pure hydrogen. The invention also discloses a method for producing hydrogen by utilizing thermochemical reaction thermally driven by solar energy under medium-lower temperature. The system and the method of the invention reduce the cost of producing hydrogen by utilizing solar energy and are beneficial to mass popularization and application.

The invention discloses a low-loss microstrip patch frequency scanning antenna array capable of scanning by a large angle in a limited bandwidth. The low-loss microstrip patch frequency scanning antenna array comprises an E-plane bend waveguide, a metal floor, a medium base plate, a waveguide gap microstrip patch mixed feeding structure and microstrip patch units, wherein one end of the E-plane bend waveguide is provided with a feeding port, and the other end of the E-plane bend waveguide is provided with a waveguide port which is connected with matched load; the metal floor is arranged on the E-plane bend waveguide; rectangular gaps are formed on the metal floor; the medium base plate is arranged on the metal floor; two rows of the microstrip patch units are arranged on the medium base plate; the number of each row of the microstrip patch units is as same as that of the gaps; all the microstrip patch units form the microstrip patch antenna array; a coupling microstrip patch is arranged on the medium base plate corresponding to each gap, on the medium base plate; microstrip transmission lines are symmetrically connected with the two sides of each coupling microstrip patch respectively; and the ports of the microstrip transmission lines are connected with the corresponding microstrip patch units respectively. The low-loss microstrip patch frequency scanning antenna array has the advantages of obviously reducing the loss of a frequency scanning slow wave line and improving the performance of the frequency scanning antenna.

The invention discloses a multilayer fluidized bed gasification furnace, the fluidized bed gasification furnace comprises a gasification furnace shell, at least two layers of gas distributors, a raw material inlet, a clinker outlet, a gasification agent inlet, a coal gas outlet, a first overflow device and a second overflow device, wherein the gas distributors are perpendicular to a longitudinal axis and arranged at different heights along the longitudinal axis in a perforated plate form to divide the internal space into an upper space, a middle space and a lower space; the clinker outlet and the gasification agent inlet are positioned at the bottom of the shell; the coal gas outlet is positioned on the top of the shell; and the first overflow device and the second overflow device are penetrated into the first gas distributor and the second gas distributor respectively and each of the first overflow device, and the second overflow device is tubular, and has two open ends, so that a raw material flows from the upper space to the middle space through the first overflow device along a curved line and then flows to the lower space from the middle layer through the second overflow device. The shortest distance between the upper end of the first overflow device as well as the second overflow device and the inner wall of the gasification furnace is between 1/5 times and 1/2 times of the internal diameter of the gasification furnace shell.

The invention discloses a denitrifying phosphorus removal-anammox-shortcut nitrification integrated baffled reaction equipment, relating to a wastewater treatment device. The equipment disclosed by the invention is baffled reaction equipment which is suitable for achieving decarbonizing and denitriding and dephosphorization synchronously for wastewater with a low carbon-nitrogen ratio and wastewater with a high carbon-nitrogen-phosphorus concentration. The integrated baffled reaction equipment makes use of the biofacies separation characteristic and achieves coupling microorganisms with denitrifying phosphorus removal, anammox and shortcut nitrification functions through a backflow device and an aerating device so as to achieve decarbonizing and denitriding and dephosphorization synchronously for the wastewater with the low carbon-nitrogen ratio and wastewater with the high carbon-nitrogen-phosphorus concentration, and reduce organic carbon source consumption amount in the treatment process to a lower level to largely reduce produced surplus sludge. Packing layers are arranged in autotrophic functional microorganism cells to raise biological holding volume for the system. The device has advantages of simple structure, multifunction, low consumption and high efficiency, easy operation and management, stable operation and so on. The device can also achieve decarbonizing and denitriding and dephosphorization synchronously.

The invention provides a comprehensive utilization method for coal. The coal is transformed into methane and other clean energy chemical products and/or clean power by integrating a multi-region coal gasification sub-method, a coal-based poly-generation sub-method, a composite power source hydrogen production sub-method and/or an algae carbon absorption sub-method, and an ecological cycle mode for development and utilization of coal resources is formed, wherein in the multi-region coal gasification sub-method, methane-containing gas flow is produced in the presence of a catalyst and a gasification agent by putting coal powder into a gasification furnace comprising a partial pyrolysis region, a catalytic gasification region and a residue gasification region. The invention also provides a system for implementing the comprehensive utilization method for coal.

The invention discloses a parallel-connection active power filter suitable for a three-phase four-wire power grid system, which mainly comprises a three-phase full-bridge inverter circuit, a half-bridge chopper circuit and two capacitors; the three-phase full-bridge inverter circuit is electrically connected with the three-phase four-wire power grid system and connected in parallel with the half-bridge chopper circuit; and the other side of the half-bridge chopper circuit is electrically connected with a midpoint of the two capacitors at a direct-current side through an inductance, and the half-bridge chopper circuit is used for controlling the direct-circuit side voltage of the parallel-connection active power filter. A double close-loop control mode is adopted in the invention, wherein the inner ring is a voltage ring which is used for providing energy feedforward for controlling the direct-current end voltage stabilization and restraining zero-sequence current perturbance; and the outer ring is a current ring which is used for controlling the output current of the parallel-connection active power filter. Compared with the prior art, the parallel-connection active power filter with the double close-loop control structure can be used for preferably compensating the power grid harmonic current and restraining three-phase imbalance.

The invention relates to a waveguide grating coupler with a distributed Bragg reflector. The coupler is made of silicon materials on an insulator and comprises a silicon substrate, a limiting layer, a top silicon layer and an optical fiber, wherein the limiting layer is made on the silicon substrate; the top silicon layer is made on the limiting layer; a diffraction grating is made on the surface of the top silicon layer; a reflection grating is made at one side of the diffraction grating; the other side of the diffraction grating is provided with a tapered waveguide with the length of about 80 micrometers; a submicrometer waveguide is arranged on the connecting point of the diffraction grating and the tapered waveguide; and one end of the optical fiber is close to the diffraction grating on the top silicon layer.

The invention relates to a laser component, which comprises a substrate and a laser chip, wherein the laser chip is provided with an active region for generating and outputting laser light, and an electrode for supplying the laser chip with electricity; an etching groove for at least partially accommodating the laser chip is formed in one end of the substrate and a light-exiting surface is arranged at the other end of the substrate; the substrate is also provided with an optical waveguide which extends between the etching groove and the light-exiting surface; the laser chip is arranged in the etching groove of the substrate; and the active region of the laser chip is aligned at the optical waveguide on the substrate. The laser component only comprises two parts, namely the substrate for integrating the optical waveguide and the electrode and the laser chip, and is free of other discrete component. The laser structure is simple in design and low in cost; a flip chip bonding alignment technology can be adopted to achieve coupling of a laser light path and coupling of a laser and a grating coupler of a silicon photonic integrated chip; and a passive alignment technology is adopted, so that the coupling efficiency is high and the laser component is suitable for high-efficiency mass production.

The invention provides a doubly-fed wind turbine generator set-based inertia control system, which comprises a power grid frequency detection module and an inertia response control module, wherein the power grid frequency detection module is used for quickly detecting a power grid frequency at high precision; the inertia response control module controls torque and a rotating speed of a wind turbine generator set separately according to the detected power grid frequency change as a basis; simulation of inertia response characteristics of a synchronous machine of a fixed inertia time constant is achieved and a torque command is transmitted to a converter; and a rotating speed command is applied to a master control to carry out running speed control on generators and an amplitude limiting parameter of a rotating speed control loop is adjusted in real time according to the power grid frequency and the operating condition of the set. The invention further provides a doubly-fed wind turbine generator set-based inertia control method. The problem of the frequency stability at high permeability of wind power is effectively solved.

The invention relates to a processing method of a ferrous metal super-finishing surface, and the processing method is characterized in that: the end of a ferrous metal workpiece is directly cut by a diamond cutter on a precision or super-precision numerical control lathe; an excitation device is arranged to drive the cutter to vibrate ultrasonically, a spray device is arranged and carbon containing cutting fluid is prepared; and in processing, the diamond cutter cuts in the composite state of ultrasonic vibration and the protection of the carbon containing cutting fluid, so that the coupling of the cutter in physical and chemical wear reduction principles is realized, and the wear when the diamond cutter cuts ferrous metal is effectively reduced. According to the processing method of the ferrous metal super-finishing surface, rough cutting, half-precision cutting and final cutting procedures are carried out through an artificial polycrystalline diamond cutter, a chemical vapor deposition (CVD) thick film diamond cutter and a natural monocrystalline diamond cutter, so that the whole process is completed on the same set of equipment; the surface of the workpiece is nitrided before final cutting, so that the wear of the natural diamond cutter is further reduced; the method has good operability, the high-precision and high-efficiency processing with lower cost to the ferrous metal super-finishing surface is realized, and the method can be widely applied to aerospace, optics, mould industry and other fields.

The invention discloses a high-arch-dam construction progress real-time simulation method based on a coupling temperature field. A data mining method is introduced to real-time analysis and research of a high-arch-dam construction period concrete temperature field, a construction period concrete temperature field regression prediction model is established, and a construction period dam body concrete temperature field is solved; based on dam body concrete temperature information and construction progress information acquired in the field, high-arch-dam construction period dam body casting temperature probability distribution is analyzed; a support vector machine method is adopted to establish the construction period concrete temperature field regression prediction model, and the high-arch-dam construction period dam body concrete temperature field is calculated; based on the high-arch-dam construction progress real-time simulation mathematic model of the coupling temperature field, a coupling temperature field real-time analysis result and a construction progress real-time simulation system are coupled, and construction progress real-time simulation analysis is performed to obtain a construction scheme.

The invention discloses a granule sludge and biological film coupled integrated sewage treatment method and a treatment device suitable for the same. A reactor is internally filled with granule sludge, suspended sludge and filler, wherein a biological film is formed on the filler; the granule sludge is coupled with the suspended sludge and the biological film by utilizing the high efficiency of the granule sludge; meanwhile, a micro-aerobic aeration environment is provided at a proper position in the reactor, and an anaerobic region, an anoxic region and an aerobic region are formed in the reactor, so that an anaerobic microenvironment, an anoxic microenvironment and an aerobic microenvironment are coupled; in addition, the double circulation that part of sludge in the anaerobic region returns to the aerobic region and part of sludge in the aerobic region returns to the anaerobic region is provided, and a proper quantity of sludge in the aerobic region is discharged, so that the synchronous and efficient removal of COD, N, P and the like in sewage is finally realized.

The invention discloses a gas sensor based on photoacoustic spectrometry, comprising a circuit matched and connected with a light source (1) and a quartz tuning fork (13). The gas sensor is characterized in that an acoustic resonator (6) is composed of a main tube (11) with a branch tube (12) which are communicated with each other vertically; the tube axis of the main tube (11) is coaxial with a light path (2), the tube length of the main tube (11) is 4.57-7.87 mm, and the tube inner diameter of the main tube (11) is 0.4-1.5mm; the tube length of the branch tube (12) is 1-2mm and the tube inner diameter of the branch tube (12) is 0.4-0.5mm; the focus of a focusing lens (4) is located at the communicated part of the main tube (11) and the branch tube (12); the plane and the slit centre of a tuning fork arm (131) of the quartz tuning fork (13) are vertical to and located in the axis of the branch tube (12) respectively, and the distance between the plane of the tuning fork arm (131) and the tail port of the branch tube (12) is 20-50mu m; and the slit width of the tuning fork arm (131) of the quartz tuning fork (13) is 0.28-0.32mm, and the resonant frequency of the tuning fork arm (131) of the quartz tuning fork (13) is 31.768-33.768kHz. The gas sensor based on photoacoustic spectrometry realizes coupling between a light-excited acoustic energy and the quartz tuning fork with the highest efficiency and can be used for the field of trace gas detection.

The invention discloses a preparation method of battery-grade lithium carbonate. The preparation method comprises the following steps: taking a lithium adsorption and desorption eluent as a raw material, performing primary and secondary monovalent ion selective electrodialysis treatment, concentrating and enriching a lithium ion by utilizing the monovalent ion selectivity of a monovalent ion selective cation membrane and a monovalent ion selective anion membrane, and intercepting magnesium ions, sulfate ions and borate ions, thereby realizing efficient separation of lithium and magnesium as well as sulfate and borate ions and other impurity ions and lithium concentration and obtaining a lithium-rich concentrated solution with a lithium content of 10-20 g/L and a ratio of magnesium to lithium of 0.1-1; obtaining the battery-grade lithium carbonate through the steps of deep calcium and magnesium removal, heavy lithium conversion, filtering and washing, drying, cooling and the like. According to the preparation method disclosed by the invention, the preparation process of the battery-grade lithium carbonate is greatly shortened, the process continuity is obviously improved, the cost is reduced, and the bottleneck problem of magnesium removal and concentration by using the salt lake lithium adsorption and desorption eluent with high magnesium-lithium ratio is solved.

The invention provides a micro lens and optical waveguide power divider integrated component and a manufacturing method thereof. In the invention, a hemispherical focusing micro lens array is formed on a glass substrate by the application of an ion exchange technology and further femtosecond laser is utilized to induce to change the refractive index inside the glass substrate to form the optical waveguide power divider with the micrometer width so as to realize integration of two basic micro optical components, namely a micro lens and the optical waveguide power divider, onto one glass substrate, realize alignment and coupling of the micro lens and the optical waveguide, generate a micro optical integrated device with the optical performance and fill a technical gap of the field.

The invention provides a method for preparing natural gas by dry quenching co-production coal. In the method, reducing gas is taken as heat-carrying gas, refrigerant and a pyrolytic process thereof are adopted to recover a great quantity of sensible heat of high-temperature coke so as to couple the dry-method coke quenching process and the coal pyrolytic process of high-temperature metallurgical coke, thus cancelling a gas and air supply system, a combustion control system and a waste gas discharging system in the original pyrolytic process, avoiding pyrolytic combustion process, saving a great quantity of energy, and realizing smoke-free, NOX-free, SOX-free and CO2-free discharging. Meanwhile, gasification gas produced by pyrolytic gas and semi-coke gasification is used for producing andsynthetizing natural gas in a methanation manner so as to realize clean conversion of coal. In addition, the method cancels N2 preparation equipment and waste heat boiler systems in dry quenching, thus simplifying the operation and maintenance process and greatly lowering investment and operation cost.

The present invention is multiple-nutrient water soluble solid composite chelated fertilizer and belongs to the field of agricultural fertilizer technology. It is prepared with the components, including monoammonium phosphate, urea, potassium chloride, magnesium chloride, copper sulfate, zinc sulfate, ferrous sulfate, manganese sulfate, boric acid, calcium citrate, composite chelating agent, pH regulator and ammonium chloride, and through chelating reaction in reaction tank at 110-115 deg.c, concentration and crystallization, high pressure exhausting and cooling crystallization. The fertilizer may be applied through drip irrigation, and has greatly raised utilization, less environmental pollution and capacity of raising agricultural product quality.

The invention provides a difficult sample mining-based airport detection method. The method comprises the following steps that: optical remote sensing images and corresponding label truth values are adopted as the training data of the optical remote sensing images; a candidate region extraction network is trained; a region classification network is trained; the candidate region extraction networkand the region classification network are trained in a coupled manner; a difficult sample mining-based end-to-end deep convolutional network is finely adjusted; and the end-to-end deep convolutional neural network is applied to airport detection. According to the difficult sample mining-based airport detection method of the invention, the deep convolutional neural network is introduced to remote sensing image airport detection; the convolutional network is utilized to extract high-level semantic feature information in a target; airport candidate regions are screened out through the high-levelsemantic features; whether the candidate regions are airports are confirmed for a second time; and therefore, the recall rate and accuracy of airport detection in the remote sensing images can be improved.

The invention relates to a treatment method for wastewater containing phenol and dissoluble amine salts produced in chemical industry production, and particularly relates to a phenol and ammonia wastewater recycling treatment method by using a single tower for performing de-acidification and de-amination simultaneously. By means of an energy-saving technology which uses a single device for decomposing amine salts and achieving separation and purification, the device investment is reduced; and the energy recycling is achieved by using a differential pressure rectification technology, so that the energy consumption is reduced. Specifically, a de-acidification and de-amination coupling tower is used, and side withdrawing and differential pressure rectification technologies are utilized for achieving a simultaneous de-acidification and de-amination process and recycling ammonia and phenol in coal gasification wastewater, and accordingly, the method is energy saving and emission reducing, the technological process is simplified simultaneously, and the operation difficulty is reduced. According to the phenol and ammonia wastewater recycling treatment method by using the single tower for performing de-acidification and de-amination simultaneously, technical problems of large device investment and high energy consumption in phenol and ammonia wastewater recycling in a coal gasification process are solved, the technological process is simplified through the coupling of devices, and high economic and social values are provided.

The invention relates to a novel distributed Hebei model construction method and application thereof. The novel distributed Hebei model construction method comprises the following steps that firstly, drainage basin generalization is carried out; secondly, grids serve as study units, a Hebei model is used for establishing a grid runoff producing module; thirdly, a lag-and-route method and a Muskingum method are used for establishing grid-by-grid distributed confluence modules. The mature Hebei model is used for conducting grid runoff producing calculation, then, grid-by-grid confluence calculation is carried out, the situation that the space distribution of factors such as an underlying surface is uneven is fully considered in the model, the model can be coupled with an atmospheric mode, the forecast accuracy of storm flood is improved, the meeting period is prolonged, and the novel distributed Hebei model construction method has important significance for storm flood forecasting, a drainage basin water circulation mechanism, water resource planning, unified water resource management scheduling in the northern semiarid and semihumid regions in China.

An optical detection system (100) for detecting biological, chemical or bio-chemical particles is described. The optical detection system (100) typically comprises a surface mode interference means. The surface mode interference means may comprise a layer (102) such as for example a metal layer like e.g. a gold layer. The surface mode interference means furthermore typically is adapted to create an interference effect between optical interface modes of the layer to detect optical changes in the vicinity of the layer (102). In this way, sample (106) occurring in the vicinity of the surface may be detected. The present invention furthermore relates to a method for performing optical detection and to a method for setting up an optical detection system wherein parameters are selected for tuning the surface mode interference means to a desired wavelength range and/or to a desired range of analyte refractive indices.

The invention discloses an NT-ProBNP detection kit. The NT-ProBNP detection kit comprises a calibrator, a cleaning solution, a substrate solution, a pretreatment solution, an enzyme conjugate workingsolution and a magnetic bead conjugate working solution; the pretreatment solution contains pyridine, the enzyme conjugate working solution contains NT-ProBNP antibody labeled by enzyme, and the magnetic bead conjugate working solution contains magnetic beads labeled by the NT-ProBNP antibody. The NT-ProBNP detection kit can accurately measure NT-ProBNP in a whole blood sample, the lowest limit detection of the kit is 20 pg/ml, the linearity range is 20-5,000 pg/ml, the detection sensitivity is high, the linearity range is wide, and the result is accurate. The invention further discloses a using method of the NT-ProBNP detection kit. The NT-ProBNP detection kit is simple in using step, the detection time of an NT-ProBNP is shortened, and quick and sensitive detection of the NT-ProBNP is achieved.

A method of manufacturing an opto-electric hybrid board capable of optically coupling light-emitting and light-receiving elements mounted on an electrical wiring board and an optical waveguide provided in an optical wiring board to each other easily with high accuracy. An opto-electric hybrid board obtained thereby. Guide pins have end portions fitted in alignment openings of an electrical wiring board and end portions fitted in alignment openings of an optical wiring board to accomplish alignment therebetween. The electrical wiring board is configured such that a conductor layer having pads for mounting light-emitting and light-receiving elements thereon and interconnect lines is formed on a metal substrate, and the alignment openings are formed in the metal substrate. The optical wiring board is configured such that an optical waveguide is formed on a metal substrate, and optical coupling openings for the optical waveguide and the alignment openings are formed in the metal substrate.