39results about How to "Change sensitive" patented technology

The invention discloses a coupled photon-plasmon micro cavity with focused energy, a preparation method and applications thereof. A coupled layer is connected with a Bragg nano micro cavity and a metal surface plasmon lens to form a coupled photon-plasmon micro cavity, under effects of the coupled layer, a waveguide mode and a surface Plasmon mode interact, a coupled photon-plasmon mode is formed, and thus, energy is focused in the center of the Bragg nano micro cavity; through a bow tie antenna and a magnetic oscillator, energy limited in the Bragg nano micro cavity can be effectively coupled in the bow tie antenna or the magnetic oscillator, and the electric field strength in the bow tie nano antenna and the magnetic field strength in the magnetic oscillator are greatly improved; and the coupled photon-plasmon micro cavity can be applied to a single molecule Raman spectrum detection device, a molecular surface enhanced infrared absorption spectrum detecting device, a nano point light source in lithography micromachining, and a refractive index sensor or a biosensor.

The invention discloses a device and method for testing the permeability coefficient of fractured rock mass under different water pressure conditions. The test device is composed of test equipment, water inlet equipment and computing equipment; The water pressure box is in the shape of a cuboid as a whole, with a water inlet valve on the upper part, and an upper sample groove is opened on the bottom plate of the water pressure box, and the size of the groove is slightly larger than the size of the rock sample; the top plate of the base box is opened with a The lower sample slot corresponds to the upper sample slot; the inside of the base box is equipped with a sample holder, a measuring cup and a gravity sensor from top to bottom; during the test, the water pressure is adjusted by the pressure stabilizer, and the gravity sensor is used to obtain The amount of seepage water changes, and the permeability coefficient is calculated by Darcy's law. The invention has the advantages of low cost, simple structure, portability and convenient operation, and can test the permeability coefficient of fractured rock mass under different water pressure conditions.

The invention discloses an on-line measurement method for frequency-sweeping ultrasonic focusing type sediment particle size distribution. The present invention builds a set of measuring devices with a focused ultrasonic probe as the core, and at the same time uses the screening method and microscope method to configure sediment samples of different particle sizes; debugs the measuring system, and starts the measuring device after it is accurate; changes the ultrasonic wave Frequency, a series of experiments with sediment particle size as a variable were carried out at different ultrasonic frequencies to obtain the data of the received waveform; phase space segmentation and symbol dynamic filtering based on the Hilbert transform were performed on the collected signals to obtain the same Measurement of parameter values ​​related to particle size; data fitting is performed on the scatter diagrams of measurement and sediment particle size at different frequencies to obtain a sediment particle size measurement model. The invention can effectively reduce the scattering attenuation in the propagation process, increase the acceptable sound energy at the receiving transducer, improve the signal-to-noise ratio, and the sensitivity and measurement accuracy of the entire measurement system.

The invention provides a buttonhole bottom thread consumption calculation method of a buttonhole machine, which belongs to the technical field of sewing equipment. It solves the problem that the calculation method of the consumption of the bottom line of the keyhole is relatively complicated. The buttonhole bottom line consumption calculation method includes the following steps: S1. Identify the current keyhole shape combination. The keyhole shape combination is composed of four structural modules: left hemming, right hemming, upper tack and lower tack, and call the corresponding four The thread quantity consumption calculation formula of each module in a structural module; S2, obtain the keyhole parameter corresponding to the identified current keyhole shape combination, and calculate S 0 And the amount of thread required for the bottom seam L: S 0 =E 左 +E 右 +E 上套结 +E 下套结 ;L=(I+N 1 +N 2 +M 1 +M 2 +5)*2*n; S3. Calculate the current buttonhole bottom thread consumption S according to the keyhole sewing stitch pattern: S=S 0 *x*y+L. This calculation method has the advantages of convenient, simple, accurate and wide application.

The invention discloses a mask comprising monitored patterns, and a monitoring method. The mask comprises designed patterns and the monitored patterns, wherein the monitored patterns comprise a first pattern, and a plurality of separated second patterns positioned on the two sides of the first pattern; the extension direction of the first pattern is parallel to the arrangement direction of the second patterns positioned on the same side of the first pattern; the first pattern and the second patterns positioned on one side of the first pattern have first key feature dimensions; the first pattern and the second patterns positioned on the other side of the first pattern have second key feature dimensions; and the first key feature dimensions and the second key feature dimensions are the same from top view. The mask in fault can be found effectively in time; the profile appearance and quality of the designed patterns of the mask can be judged; the pattern quality judging reliability of the mask can be improved; and the yield of a semiconductor product can be improved.

The invention belongs to the field of blood coagulation detection quality control and particularly relates to a thrombelastogram quality control product and a preparation method and application thereof. The quality control product comprises quality control products L1 and L2. Each one of the quality control products L1 and L2 is composed of a serum matrix fluid, a fibrinogen matrix fluid, a tissuefactor, an anticoagulant and a coagulation activator according to different ratios. Platelet content is controlled in a specific range, a shaping agent is used and a blood coagulation factor is not used so that the detection result is accurate and a calibrator function is obtained. The invention also provides a preparation method of the quality control product. The preparation method separates serum, fibrinogen and platelets in whole blood and accurately controls their contents so that the prepared quality control product has good accuracy and stability. The used serum and fibrinogen are derived from the unified blood system so that the product compatibility is good and the stability is further improved. The preparation method is simple, utilizes few additives and modulators and is easy to industrialize.

The invention relates to the technical field of real-time video, and provides a bit rate adaptive adjustment system applied to a cloud fusion platform, which is characterized by comprising: a media production unit, a media distribution unit, a media transcoding unit and a media consumption unit; the media The distribution unit is electrically connected to the media production unit, the media transcoding unit and the media consumption unit. The media distribution unit of the present invention can automatically adjust the transmission bandwidth according to the result of the bandwidth detection, the whole process is extremely fast, the cycle is extremely short, and the link can be quickly restored to the state of normal transmission; the media transcoding unit only converts one video source to one channel at most. The code stream of video multi-description encoding consumes less computing resources and network resources in the system, thereby reducing hardware costs; video multi-description encoding itself has a certain ability to resist packet loss, and the media consumption unit only needs to receive a sub-description to rebuild. The entire video frame can greatly improve the smoothness of video playback.

The invention relates to red luminous paint which comprises matrix paint and a luminous material, wherein the chemical formula of the luminous material is Ba2ZnS3:aEu<2+>, and the range of atom ratio a is 0.001-1; the matrix paint is paint capable of transmitting light with a wavelength less than 460 nano; and the mass percentage of the luminous material is 3-70%, and the mass percentage of the matrix paint is 30-97%. In the invention, the luminous material Ba2ZnS3:aEu<2+> is used, which is sensitive to a temperature in a temperature interval from room temperature to 450K; and the red-light-emitting strength of the luminous material varies linearly with temperatures along with variation of temperatures, thereby precisely reflecting the temperature in a temperature interval from room temperature to 450K. Thus, the red luminous paint can be used for phosphorescent temperature measurement within temperature range from room temperature to 450K.

The invention provides an indoor motion detecting method based on channel frequency domain response. According to the indoor motion detecting method based on the channel frequency domain response, because expression accuracy of CFR to multiple diameters reaches a subcarrier layer, finer wireless link expression is realized by CFR over CIR, thereby realizing lower report error rate and mis-alarm rate over CIR detection. On the other hand, a frequency domain digital characteristic is used as a measured value. In a wireless multipath environment, a time domain corresponds with distributed time delay of each multipath signal, and the frequency domain is obtained through superposing multipath signals. Disturbance to a single path is superposed on each frequency point. Therefore the frequency domain digital characteristic is more sensitive than the time domain digital characteristic to environment change, and furthermore report omission rate reduction is realized.

The invention relates to the field of quality control of a clinical blood coagulation inspection item, and in particular provides to a method for preparing a quality control product which can be used for simultaneously carrying out PT (Prothrombin Time), APTT (activated partial thromboplastin time) and FIB (fibrinogen) blood coagulation inspection items through animal blood plasma. The method comprises the steps of mixing the animal blood plasma according to an appropriate rate, adding or removing the FIB, adding proper amount of blood plasma buffer solution contacting a stabilizing agent so as to enable detecting results of mixed blood plasma PT, APTT and FIB to be in the range of a blood coagulation indicator of a normal person, drying and cooling, thus obtaining the product. The blood coagulation quality control product prepared by the method provided by the invention has good sensibility to variation of a detection reagent, has high stability and meets the quality control requirement of the clinical blood coagulation inspection item.

The invention relates to a safe early warning beam structure for a longitudinal-beam-free middle bearing type arch bridge and an early warning method of the structure. A structure of the longitudinal-beam-free middle bearing type arch bridge does not adopt a longitudinal main beam, and when a hanging rod of the arch bridge fractures, beam falling accidents can be caused. The safe early warning beam structure comprises a continuous longitudinal beam consisting of a middle spanning connecting beam, a middle spanning support beam, a side spanning connecting beam and a side spanning support beam, wherein the continuous longitudinal beam extends to a cross beam between ribs, the middle spanning support beam forms a bag hanger on the hanging rod cross beam through the cross beam support beam and the connecting hanging rod, the top surface of the middle spanning connecting beam is provided with a longitudinal semitransparent communicating pipe, the inside of the middle spanning connecting beam is filled with low-volatility lubricating oil, the liquid level height differences of lubricating oil at the two ends of the communicating pipe are observed by the semitransparent communicating pipe, and the monitoring on the deformation of the middle spanning connecting beam is realized. The structure and the method have the advantages that the longitudinal beam basically bears no load in the operation stage, when small probability events such as hanging rod fracture occur, the longitudinal beam starts to take effects, the occurrence of the beam falling accidents is prevented, through the adopted communicating pipe, the deformation condition of the longitudinal beam can be observed, and the feasibility of monitoring the hanging rod safety on the basis of longitudinal beam deformation is improved.

A resource allocation method for reconfigurable multi-core processors with task number and performance awareness. Dynamic reconfigurable multi-core processors have the ability to dynamically reconfigure on-chip resources during runtime. In order to reduce the average turnaround time of tasks, improve system throughput and chip Resource utilization offers huge room for optimization. In the present invention, within each operating system scheduling interval, the resource allocator first allocates logic cores on average according to the number of tasks, and after running for a certain clock cycle, sorts them according to the performance of the tasks (reflecting the resource requirements of the tasks), and finds Assign tasks with small resource requirements, reduce the granularity of logical cores occupied, and allocate idle physical cores obtained from tasks with small resource requirements to tasks with high resource requirements, so as to increase the number of tasks with high resource requirements The granularity of logical cores occupied. When the current load of the system changes or the task itself enters a new running stage, the resource allocator will make timely adjustments in the next operating system scheduling to make full use of chip resources.