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137 results about "Response effect" patented technology

A response order effect occurs when the distribution of responses to a closed-ended survey question is influenced by the order in which the response options are offered to respondents. Primacy and recency effects are two common types of response order effects.

PC screen content sharing/interaction control method

The invention relates to a PC screen content sharing / interaction control method, specifically, relates to improvement of an existing method of PC screen content sharing. The PC screen content sharing / interaction control method comprises the following steps that: S1, a remote PC host assigns a window of which the content is required to be shared; S2, screen RGB data are obtained in a shared memory data buffer; S3, a software encoder is utilized to perform encoding and compression on data a YUV420 format so as to obtain H.264 video streams; S4, the screen content video streams which have been subjected to encoding and compression are uploaded to a stream media server through an RTMP protocol; S5, a user logs into a Webpage client address which releases media streams of the remote PC host through a browser; S6, control information is transmitted to the remote PC host through a TCP protocol; S7, the remote PC host parses received control information of a user end and displays the received control information on a PC screen; and S8, screen response effect is presented on a Webpage client which the client logs into. With the PC screen content sharing / interaction control method adopted, a user can directly browse the content of the screen through a Webpage browser, and remote interaction control protocols can be customized, and a lightweight system used for PC screen content sharing / interaction can be realized.
Owner:GUANGDONG UNIV OF TECH

Flying robot with mechanical arm and control method thereof

The invention discloses a flying robot with a mechanical arm and a control method thereof. The flying robot comprises a multi-rotor unmanned aerial vehicle flying platform, the six-degree-of-freedom mechanical arm and an operation end control system, wherein the six-degree-of-freedom mechanical arm is installed under the multi-rotor unmanned aerial vehicle flying platform. The unmanned aerial vehicle is combined with the mechanical arm, so that the task execution capability of the unmanned aerial vehicle is expanded; and the movement range of the mechanical arm is expanded from the ground to the air, meanwhile, the control mode of the mechanical arm is improved, the new control mode can enable the mechanical arm to move along with a human arm, so that the idea of an operator can be executed more naturally and flexibly. According to the flying robot and the control method thereof, the operation ranges of the unmanned aerial vehicle and the mechanical arm are expanded, and remote control of the mechanical arm is realized; the mechanical arm can move along with the postures of the human arm, so that complex model detection and model operation are avoided, and the response effect is better; and the impact to the mechanical arm and the flying platform during rapid response of a steering engine can be relieved while the rapid response characteristic of the steering engine is kept as far as possible.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Method for controlling dynamic response of switch power

A method for controlling dynamic response of switch power is based on a closed-loop control system including a sampling module, a dynamic control module, an error calculating module, a PID module, a mode control module and a PWM module, wherein the sampling module samples output voltage Vo, and the dynamic control module compares the Vo with set Vo max, Vo min and V ref. Whether a dynamic mode is employed is determined. When the output voltage Vo changes greatly under the dynamic mode, the voltage Vo is rapidly restored to a stable voltage by inputting large power or small power, and the load is detected by voltage change gradient to determine the working state and reduce voltage resonance. The dynamic response effect is improved.
Owner:SOUTHEAST UNIV

Perceptible Apparatus and Methods for Reactive Effect

A perceptible apparatus and method for creating a subtle energy field is disclosed. The apparatus includes a light source and a plurality of configuration elements that are in effectual communication with the light source, wherein the configuration elements are adjustably selectable to produce subtle energy of different vibrations. The plurality of configuration elements are preferably selected from the group consisting essentially of a spectral color analysis of the light source, a brightness of light pulses from the light source, a wave form of light pulses through a duration of light pulse(s), and a frequency of light pulse transitions from “on” to “off,” or transitions between different brightness levels. Also included in the plurality of configuration elements is an emitter in the form of a translucent element that is in light wave communication with the light source to further produce changes in the subtle energy field.
Owner:THOMAS DAVID A

Voice interaction method and device, electronic device and storage medium

The invention discloses a voice interaction method and device, an electronic device and a storage medium, and belongs to the technical field of voice. The voice interaction method comprises the stepsthat a voice instruction of a user is analyzed, at least one piece of instruction information of the voice instruction, user portrait information of the user and emotion information of the user is obtained; based on at least one piece of instruction information of the voice instruction, user portrait information of the user and emotion information of the user, target sound attribute information isobtained; and target voice response with the target sound attribute information is provided. According to the voice interaction method and device, the electronic device and the storage medium, the voice instruction of the user is analyzed, at least one piece of instruction information of the voice instruction, user portrait information of the user and emotion information of the user is obtained;and what voice response of the sound is used for feeding back the voice instruction is determined based on at least one piece of information, the sound attribute of the voice response is not fixed, the relevance of the voice instruction with the voice response is high, interest, intelligence and diversity are additionally arranged in the voice interaction process, and the response effect is good.
Owner:TENCENT TECH (SHENZHEN) CO LTD

Answer prediction method and device for question and answer system, electronic equipment and storage medium

The present disclosure relates to an answer prediction method and device for a question and answer system, electronic equipment and a computer-readable storage medium. The answer prediction method includes: obtaining a current question, a historical question and a historical question answer as current input information, and splitting the input information into a plurality of pieces of sequence data; and obtaining a predicted answer to the current question by using the question and answer system generated by the cyclic neural network algorithm according to the sequence data; and outputting thepredicted answer and returning the predicted answer as the historical question answer in the next input information. The disclosure can reduce the degree of artificial participation and improve the response effect, can realize fast switching between different fields and has good versatility.
Owner:BEIJING JINGDONG SHANGKE INFORMATION TECH CO LTD +1

Ultraviolet photoelectric detector based on gallium oxide heterojunction structure and preparation method thereof

The invention belongs to the technical field of ultraviolet photoelectric detectors, and particularly relates to an ultraviolet photoelectric detector based on a gallium oxide heterojunction structureand a preparation method thereof. The ultraviolet photoelectric detector includes an alpha-Ga2O3 / beta-Ga2O3 heterojunction nanosheet array, ITO transparent conductive glass, and a Ti / Au film electrode. An alpha-Ga2O3 / beta-Ga2O3 heterojunction nanosheet is formed by wrapping an alpha-Ga2O3 nanosheet as a core in beta-Ga2O3 as a shell. The ultraviolet photoelectric detector of the invention has stable performance, sensitive reaction and small dark current, and has a good ultraviolet photoelectrical response effect. The preparation method has the characteristics of strong process controllability, simple operation, good universality, and the like, is expected to be widely applied to fields such as self-powered flame detection, high-voltage line corona and missile plume, and has high popularization value.
Owner:东营睿港招商服务有限责任公司

Oil-line avolution method for modular soft ware

The present invention discloses a kind of on-line evolution method for modular software. The sync state, cutoff state and buffering state are introduced to establish fine module managing mechanism, and the module is reloaded by means of new loading program constituing method on the basis to realize the altering, increasing, deleting and other operation of the software in running. This can on-lineincrease service content, optimize service program, eliminate system defect, raise response effect and raise the service quantity of software system.
Owner:PEKING UNIV

Hydrazine near infrared ratio detecting fluorescent probe and application

InactiveCN105017196AEnable ratiometric imagingFluorescence ratio response effect is goodOrganic chemistryMaterial analysis by observing effect on chemical indicatorChemical structureResponse effect
The present invention discloses a near-infrared hydrazine ratio fluorescence probe, and the probe is dicoumarol-containing 4 - (2 '- carboxyl phenyl) - 2 - (7' - diethylamine coumarin) - 7 - diethylamino benzo pyran perchlorate with the chemical structural formula shown in formula (I). The probe can selectively effect with N2H4 to change from green to yellow, can be distinguished by the naked eye, fluorescence changes from red to blue-green, and fluorescence ratio response effect is very good, and can also be analyzed by UV absorption and fluorescence spectrometry. N2H4 ratio detecting can be achieved, intracellular ratio imaging can be achieved, and the content of the gaseous N2H4 can be quickly detected by the naked eye by use of a prepared silica gel plate. The probe is expected to play a role in industrial production and biological sciences, and has broad application prospects.
Owner:SHANDONG UNIV

Unit load dynamic reactive response based minimum boot order optimization method

The invention provides a unit load dynamic reactive response based minimum boot order optimization method. The method comprises the steps of determining a weak spot in a heavy load region of a power system; determining an electrical distance index and a dynamic reactive response quantitative index; calculating response effect indexes influencing system voltage of each generator in the power system separately; determining the boot order of the generators according to index values of the response effect indexes; controlling the startup and shutdown of the generators based on the boot order, and detecting the steady state of the weak spot, wherein the actual startup-shutdown order of the generators when the weak spot reaches a critical steady state is the minimum boot order. Compared with the prior art, the invention provides the unit load dynamic reactive response based minimum boot order optimization method; the effect degrees for the system voltage in the shutdown processes of the generators are clearly determined, so that the generator boot order arrangement policy at the minimum machine halt mode is greatly improved, and the method is relatively high in adaptability.
Owner:STATE GRID CORP OF CHINA +2

Information processing method and main terminal equipment

The invention provides an information processing method and main terminal equipment, and is used for solving the technical problem that a response effect of terminal equipment in a voice interaction process is relatively poor. The method includes the following steps: at least one piece of audio information is obtained through main terminal equipment in a voice processing system, wherein the at least one audio information includes audio information received by the main terminal equipment through a communication interface and collected by at least one piece of sub terminal equipment connected with the main terminal equipment; the main terminal equipment determines first audio information that satisfies preset conditions among the at least one piece of audio information; and the main terminal equipment sends the first audio information to a server in the voice processing system, so as to obtain a processing result for the first audio information which is fed back by the server.
Owner:LENOVO (BEIJING) CO LTD

Big data miner for multi-dimensional load characteristic analysis

The invention relates to a big data miner for multi-dimensional load characteristic analysis. According to the invention, a power consumer consumption behavior mode analysis module is connected with a load characteristic index analysis module, a consumption behavior mode factor and influence mechanism analysis module and a load curve abnormality diagnosis module, the consumption behavior mode factor and influence mechanism analysis module is connected with a power consumer demand response baseline calculation module and a demand response potential analysis module, the power consumer demand response baseline calculation module is connected with a power consumer demand response effect evaluation module, and the load curve abnormality diagnosis module is connected with an emergency load forecasting module. The big data miner provided by the invention for the multi-dimensional load characteristic analysis can be used for deep mining of load characteristics of a power consumer under the big data environment, can provide scientific theoretical support for two-way interactive demand response technology, and gives full play to the operating efficiency.
Owner:CHINA ELECTRIC POWER RES INST +4

Switch power control method with optimized dynamic response

The invention discloses a switch power control method with optimized dynamic response. The method is based on a control system formed by control circuits taking a Buck step-down topological circuit, a fixed frequency LLC voltage regulating circuit, an output voltage sampling circuit and a microcontroller as control cores. Evaluation factors about dynamic response effects in a system adjusting process include overshoot in adjusting process and stabilizing time of system output voltage; a multi-objective optimization algorithm can evaluate the performance of the PID control module according to the overshoot and the stabilizing time of the system output voltage; through final iteration, the overshoot and the stabilizing time of the PID control module in the control process can reach the optimal parameter; thus the dynamic response effect of the system reaches the best.
Owner:SOUTHEAST UNIV

A demand response effect phased evaluation method oriented to interruptible load

InactiveCN109255463ARaise expected completionForecastingResourcesPhases of clinical researchResponse effect
The invention discloses a demand response effect phased evaluation method oriented to interruptible load, in particular comprising the following steps: establishing a random comprehensive evaluation index system of incentive effect based on unit terminal compensation standard, duration and user participation incentive; by using the entropy weight method, obtaining the comprehensive weight of eachindex, and obtaining the comprehensive quantitative evaluation value of multi-index demand response effect of all kinds of users by using the weighted sum of each index; selecting high-adaptability users to realize the matching of the total demand response by the method based on hierarchical classification; Based on the user's baseline load forecasting, evaluating the actual effect of each load participating in the incentive project afterwards to verify the accuracy of the evaluation. The invention can provide effect evaluation guidance for the development of various demand side response projects in the power system, improve the implementation efficiency of the incentive project through a closed-loop evaluation process, and provide theoretical and practical assistance for promoting the power demand side reform.
Owner:SOUTHEAST UNIV

Multiple-response polymer microsphere drug carrier material and a preparation method thereof

The invention discloses a preparation method of a polymer microsphere drug slow-release carrier with three responses to an oxidant, glucose and an electric field. The microsphere material consists of a polymer with beta-cyclodextrin, ferrocene-modified polyether and alpha-cyclodextrin. The preparation method of the polymer microsphere drug carrier comprises the following steps: firstly, synchronously dissolving the polymer with beta-cyclodextrin and the ferrocene-modified polyether in an aqueous solution, and stirring uniformly to ensure that the beta-cyclodextrin and ferrocene are fully compounded; and then adding alpha-cyclodextrin, and further stirring for a certain period of time to ensure that alpha-cyclodextrin and polyether are fully compounded. Along with the progress of compounding, a system gradually becomes cloudy, and polymer microspheres are formed. The polymer microspheres have good performance of wrapping macromolecular drugs and performance of effectively disintegrating the oxidant, glucose and electric field stimulation, so that gradual disintegration and slow release of a drug are realized. The polymer microsphere drug slow-release carrier disclosed by the invention is simple in preparation method and good in response effect, is environment-friendly and economical, and has a relatively great application value in the field of drug controllable slow-release.
Owner:QUZHOU UNIV

Operation flow realized through automatic demand response system

The invention discloses an operation flow realized through an automatic demand response system. The automatic demand response system mainly comprises a device layer, a terminal layer, a network layerand a master station layer. Electric power user power consumption device state data and operation data are transmitted to the master station layer from the bottom to the top. After analysis and decision performed by the master station layer\, a load regulation and control order is transmitted to the device layer from the top to the bottom. The operation flow realized through the automatic demand response system can finish comprehensive energy efficiency analysis, load baseline prediction, response capability analysis, response quota distribution and response effect evaluation, etc., can timelytrack a changing trend of a power grid through performing information interaction with a marketing business system, an electric use information collection system, etc. can effectively reduce a difference between peak and valley, improves absorbing capabilities of absorbing distributed regenerative resources and improves balance of supply and demand of the local power grid.
Owner:STATE GRID TIANJIN ELECTRIC POWER +1

Demand response effect evaluation method based on demand response baseline

The invention provides a demand response effect evaluation method based on a demand response baseline. A demand response amount is determined according to a baseline executing a demand response and a load curve executing a demand response, the demand response amount is evaluated, a demand response effect evaluation factor is obtained, and the demand response effect evaluation factor reflects demand response effects. Based on parameter recognition, the demand response baseline is determined, and thus, a prediction speed is ensured, influence factors such as the weather are included in a consideration range, an accurate demand response baseline determination method is acquired, and a new idea is provided for calculating the demand response reduction amount. Due to the new calculation method for researching the demand response baseline, the potential of a user participating the demand response project is dug, the project effects are evaluated, the demand response participation enthusiasm is improved, a power company can be helped to make a more effective power grid scheduling scheme, reasonable power resource allocation is realized, and the power grid efficiency is improved.
Owner:CHINA ELECTRIC POWER RES INST +2

Cancer individuation intervention strategy selection method based on molecular physiome

InactiveCN106897549ASimplify the diagnostic cycleImprove follow-up intervention responseMedical data miningMedical automated diagnosisResponse effectMolecular level
The invention discloses a cancer individuation intervention strategy selection method based on molecular physiome. The method comprises the following steps that: establishing an intervention response model library; when a new case appears, comparing the new case with the pre-administration proteomics difference of a model; and analyzing biological approaches / physiological function differences and the like which may be caused by the difference. A sample data type on which the method depends has high dependency with a physiological level phenotype. Proteomics data related to cell physiology and functions including protein and the like can be transcribed and subjected to epigenetic inheritance. The method is more sensitive to the intervention response effect of diseases, can provide rich indexes to observe molecular level physiological changes caused by diseases, and is suitable for clinic transformation and practical popularization.
Owner:ZHEJIANG UNIV

Security feature identification method and reflection type safety element film

The invention discloses a security feature identification method. The method is implemented based on a reflection type safety element film composed of a focusing element array layer, a base material layer, a micrographic array layer and a reflection layer. True and false identification is achieved through light response produced when a point light source or a collimation light source irradiate the reflection type safety element film. The invention further provides the reflection type safety element film. Compared with other safety elements, the reflection type safety element film is more compact in structure, capable of carrying out real-time dynamic response on light illumination, capable of achieving the response effect which is unrealizable for other safety elements, and higher in anti-false safety performance.
Owner:ZHEJIANG SCI-TECH UNIV

Structure of electric power sensor on bicycle rear fork

The invention discloses a structure of an electric power sensor on a bicycle rear fork. In the invention, one lateral bottom of the bicycle rear fork is provided with a groove, the groove is internally fixed with a circuit board on which a Hall element is arranged, and a sensor assembly arranged on a rear shaft which penetrates through a long slotted hole at the bottom of the groove and is movable is accommodated in the groove; a permanent magnet arranged on the sensor assembly is in magnetic induction match with the Hall element on the circuit board; and the rear shaft is limited to move within the long slotted hole at the bottom of the groove, thus by means of the magnetic induction change between the permanent magnet which is fixed relative to the rear shaft and the Hall element when the rear shaft moves, an electrical signal is output to control the thrust augmentation rotation of a bicycle motor. The invention has the advantages that the bicycle rear fork is fully utilized to serve as the carrier of the sensor, the whole sensor assembly is tactfully accommodated in the groove of the rear fork, the space required by the permanent magnet of the sensor and the Hall element is small, the response effect is good, and the structure is convenient in installation and maintenance.
Owner:江苏英诺英科智能技术有限公司

Map tile data publishing method

InactiveCN104156482AThe access path is simple and clearResponse speed effect improvedGeographical information databasesSpecial data processing applicationsResource poolResponse effect
The invention relates to a map tile data publishing method. The map tile data publishing method comprises the steps that (1) tile map data are prepared; (2) the path format for requesting a tile is defined; (3) the tile is requested according to the path format; (4) a request receiver receives a request, and new tasks are added; (5) a resource schedule has access to a resource pool; (6) a cache management algorithm is used, and the resource pool is managed in a Hash chained list storage mode; (7) tile resources are output. Programs compiled according to the method are lightweight directory services, an installation file is small, the access path is simple and clear, large concurrent processing is supported through management on a thread pool, and the response speed and the response effect are increased remarkably.
Owner:TIANJIN RICHSOFT ELECTRIC POWER INFORMATION TECH

Novel irradiation indication film and preparation method thereof

The invention discloses a novel irradiation indication film which comprises a polyester substrate, a discoloring coating and a protective film connected sequentially from bottom to top. The discoloring coating is made of following materials: adding PVB (polyvinyl butyral) of 0.5-0.7 g (gram), 10, 12-twenty-three carbon diyne acid of 0.4-0.5 g, and photoinitiator of 1.2-1.3 g into absolute ethyl alcohol of 10ml (milliliter) and then mixing uniformly to obtain a discoloring coating solution. A preparation method of the irradiation indication film includes that washing the polyester substrate with the absolute ethyl alcohol, after the polyester substrate becomes dry, coating the discoloring coating on the polyester substrate, and sticking the protective film on the polyester substrate after drying. The indication film has a fine response effect within 5-50 Gy dosage range, whether or not an irradiated object goes through irradiation can be determined by observing discoloring condition with naked eyes, absorbed radiation dosage of the irradiated object can be further identified by measuring absorbance value ration, and selection range of materials is enlarged.
Owner:深圳市华科核医疗技术有限公司

Neutralizing monoclonal antibody in human adenovirus 7 and preparation method and application thereof

The invention discloses a method for preparing a neutralizing monoclonal antibody in a human adenovirus 7. The hexon fifth hypervariable region of a human adenovirus 3 vector is substituted by a hexon fifth hypervariable region gene of the human adenovirus 7 to construct a chimeric virus which is taken as an immunogen. A murine human adenovirus 7 neutralizing monoclonal antibody and a hybridoma cell strain 5MH5 / 3G5 prepared by using the method are further provided. A humanized and chimeric monoclonal antibody prepared by using the method and a medicinal composition comprising the humanized or human-mouse chimeric monoclonal antibody serving as an effective component are further provided. An exogenous neutralizing epitope is embedded into the hypervariable region of the human adenovirus 3 vector to construct a recombinant adenovirus showing the exogenous neutralizing epitope. By using the recombinant adenovirus as an immunogen, the exogenous neutralizing epitope can be shown effectively, the immune response effect is enhanced, and the research of a monoclonal antibody for treating infectious diseases is facilitated.
Owner:广州瑞发一号健康投资中心(有限合伙)

Application of chitosan oligosaccharide and vaccine containing chitosan oligosaccharide

The invention provides anapplication of chitosan oligosaccharide and a vaccine containing the chitosan oligosaccharide. The chitosan oligosaccharide is applied to the vaccine as an adjuvant, namely each single vaccine contains 2.5-10mg of chitosan oligosaccharide. The chitosan oligosaccharide provided by the invention is a chitosan oligosaccharidemixturewhich is formed by 2-10 glucosamines and of which the molecular weight is smaller than 3000, and is small in toxic or side effect, and is safe and reliable when being used in an immunizing dose range; antigen-specifichumoral immune responsecan be effectively induced; the induced humoral immune response effect is superior to that of a group free of an adjuvant; and the chitosan oligosaccharide is available in raw materialwhich is a commercially available product, is simple in preparation technology, low in cost, stable in performance, relatively high in biological potency, and free of a toxic or side effect, and can be add to a plurality of traditional vaccines or genetic engineering vaccines as the adjuvant.
Owner:INST OF MEDICAL BIOLOGY CHINESE ACAD OF MEDICAL SCI

Reducing demand/response effects implementing volt/var control

InactiveUS20120296491A1Reducing demand response event pre-reboundsReduce impactMechanical power/torque controlLevel controlResponse effectEngineering
A method for reducing effects of a demand / response event in a power distribution network can include identifying a load profile in the power distribution network, in response to detecting a peak in the load profile, decreasing voltage in the power distribution network and in response to a detecting a trough in the load profile, increasing the voltage in the power distribution network.
Owner:GENERAL ELECTRIC CO

Weighted least square spatial matrix filtering design method

ActiveCN106100608AAdjust the response effectDigital technique networkResponse effectComputer science
The invention belongs to the technical field of array signal processing, and relates to a weighted least square spatial matrix filtering design method, in particular to a spatial matrix filtering design method for constant passband response errors and stopband responses. The design method is characterized in that a constant passband response error and a constant stopband response are obtained by iteration of optimal spatial matrix filter weighting parameters. Moreover, a proportionality coefficient lambda of the passband response error and the stopband response can be set to adjust response effects of a passband and a stopband.
Owner:PLA DALIAN NAVAL ACADEMY

Method for processing data center operation and maintenance system event

The invention provides a method for processing a data center operation and maintenance system event. The method comprises the following steps of problem classification, problem diagnosis, and safety management. In the problem classification step, a monitoring center, after receiving a report, immediately creates a work sheet and an instant messaging group, and performs classification. In the problem diagnosis step, an operation and maintenance management department performs diagnosis. In the safety management steps, a safety management department closely observes the creation and processing of each work sheet. The method for processing the data center operation and maintenance system event has a communication cooperative effect, a fast response effect, a continuous improvement effect, a management maturity improvement effect, and an efficiency-increasing cost-reducing effect.
Owner:苏州紫方数据科技有限公司

Multi-modal performance-based aseismic design method based on condition bispectrum

ActiveCN108460200AControl shock resistanceControl Seismic BehaviorDesign optimisation/simulationSpecial data processing applicationsResponse effectEngineering
The invention relates to the field of aseismic design technology, in particular to a multi-modal performance-based aseismic design method based on a condition bispectrum. According to the method, aseismic design is performed directly based on quantitative performance levels, wherein first, a single-freedom-degree elastic-plastic structural system of the condition bispectrum is artificially assumed, by adjusting performance displacement angles rho<obj-m>(d) of structural top layers and second stiffness of a double-broken-line elastic-plastic model, the single-freedom-degree elastic-plastic structural system is identical to a standard single-freedom-degree elastic-plastic structural system, and then structural aseismic response effects under the aseismic performance levels are solved. According to the aseismic design method based on the performance levels, a final destruction state serves as the basis of aseismic design, and therefore the aseismic performance of a structure can be controlled no matter whether an earthquake with super fortification intensity (ground motion parameters) occurs. Obviously, the aseismic design is more scientific compared with traditional performance-basedaseismic design based on fortification intensity (ground motion parameters), and the aseismic behavior of the structure can be controlled.
Owner:QINGDAO TECHNOLOGICAL UNIVERSITY

Low frequency buzzer

InactiveCN103886855AGood low frequency response performanceSound producing devicesElectricityResponse effect
The invention discloses a low frequency buzzer. The low frequency buzzer comprises a vibrating diaphragm arranged in a support in an erecting mode and a piezoelectric ceramic piece attached to one side of the vibrating diaphragm. A closed cavity is formed between the support and one side of the piezoelectric ceramic piece. A sound making hole is formed in the portion, on the other side of the piezoelectric ceramic piece, of the support, and an electrode lead connected with the piezoelectric ceramic piece extends out of the support. According to the low frequency buzzer, the vibrating diaphragm is fixed in the support of the closed cavity, the closed cavity forms a pressure cavity, the vibrating diaphragm is influenced by the change of gas pressure in the pressure cavity in the vibrating process, the bass response effect of the buzzer is improved, and electronic components inside the cavity are prevented from being influenced by the external environment. The low frequency buzzer is used in the field of piezoelectric devices.
Owner:AUDIOWELL ELECTRONICS GUANGDONG

Method for quantitatively assaying 80nmAuNPs on the basis of indirect competitive enzyme-linked immunosorbent assay

The invention provides a method for quantitatively assaying 80nmAuNPs on the basis of indirect competitive enzyme-linked immunosorbent assay, which adopts indirect competitive enzyme-linked immunosorbent assay in the technology of enzyme-linked immunosorbent assay and utilizes the specific binding of antigens and antibodies to assay 80nmAu particles. Compared with the prior art, the method successfully synthesizes haptens into holoantigens by the action of modifier, making great contribution to the production of antibodies. By utilizing the immune response effect of the body, the method successfully prepares an anti-80nmAuNPs polyclonal antibody with high specificity, the shelf life of the antibody is long, and therefore feasibility is high; by utilizing indirect competitive enzyme-linked immunosorbent assay in the technology of enzyme-linked immunosorbent assay to carry out a type of quantitative assay, the invention of the method provides a highly feasible method for the quantitative assay of future nanomaterials. The method is easy to operate, highly feasible, highly sensitive and low in assay limit, and can realize high-throughput assay.
Owner:重庆陌达生物科技有限公司
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