52results about How to "Promote universal application" patented technology

The invention relates to an integrated method for enriching and detecting a rare cell in a biological fluid sample. The enriching method comprises the following steps: (a) removing plasma protein by centrifugation; (b) optionally adding hematid lysis solution to carry out hematid lysis so as to remove hematid; (c) adding an immune microsphere or immune adsorbent to incubate; and (d) carrying out density centrifugation based on a specific cell separation medium so as to separate the a cycling rare cell, the residual cell after the hematid is removed and leucocyte combined on the immune microsphere. The method for detecting the enriched rare cells comprises the steps of combining pigmentation based on immune histochemistry or bi-color, tri-color or multicolor pigmentation based on the immunehistochemistry with immune fluorescence and observing and identifying by a fluorescent or common optical microscope or a scanner based on a microscope principle. The novel and unique method for enriching and detecting a rare cell in a biological fluid sample is proved to have low cost and can rapidly, effectively and highly specifically enrich and quantitatively detect the rare cell in blood.

The invention discloses a pumpjetpropulsor hydraulic model with front stators circumferentially and asymmetrically arranged and a design method thereof. The pumpjetpropulsor hydraulic model comprises stator blades, a stator hub, impeller blades, an impeller hub and a guide tube. The stator blades are circumferentially and asymmetrically arranged on the stator hub, and blade tips of the stator blades are fixed to the inner wall face of the guide tube. The axis of the stator hub, the axis of the impeller hub and the axis of the guide tube coincide. The impeller blades have the characteristics of large side skewing and tail longitudinal inclination. The pitch angles of the stator blades are changed according to the sine rule on the basis of the pitch angles of reference pumpjet stator blades, and the change quantity of the pitch angles is related to the circumferential angle positions of the stator blades, impeller turning directions and amplitude coefficients. According to the pumpjetpropulsor hydraulic model with front stators circumferentially and asymmetrically arranged and the design method thereof, the amplitude of pumpjet pulsation thrust coefficients can be reduced, pumpjet radiation noise is lowered, and the pulsation thrust coefficients of the pumpjet with the front stators circumferentially and asymmetrically arranged are reduced by 3.4% compared with a reference pumpjet under the same design condition. The technical measure is also suitable for noise optimization design of shaftless driving type integration motor pumpjet hydraulic models.

The invention discloses a preparation method of dextran microsphere gel. The steps are as follows: separately prepare a dispersed-phase dextran solution and a continuous-phase solution; drop the dispersed-phase solution into the continuous-phase solution at a uniform speed; High-quality emulsification equipment is used to fully emulsify the mixture; add a cross-linking agent and mechanically stir to fully cross-link the mixture to obtain dextran microsphere gel. The dextran microsphere gel of the present invention selects common domestic raw materials, its price is low, the supply cycle is short, the process is simple and large-scale production is possible, there is no hidden danger of safe production and environmental pollution, and it is widely used in different detection technologies, especially greatly promoting the production of microspheres. The popularization and application of column gel detection technology in China has improved the medical level.

The present application discloses a broadcasting method of a low-power Bluetooth device, including: driving a finite state machine to obtain a pre-generated or external microcontroller input broadcast packet definition; reading the broadcast content in the broadcast packet definition in the finite state machine and the broadcast channel; drive the finite state machine to play the broadcast content in the broadcast channel; by using the finite state machine, the broadcast content in the broadcast packet definition can be played, so there is no need to carry out secondary development of the bluetooth chip, so that the bluetooth chip Broadcasting can be performed without software development, thereby reducing the development cost of the Bluetooth system, thus promoting the further popularization and application of low-power Bluetooth, thereby promoting the development of the Internet of Things.

The invention relates to the field of medical optical detection. The invention discloses a human eye retinal blood flow measurement device based on the beam parallel scanning mode, which can quantitatively detect the blood vessel branches of different parts of the human eye retina and the total blood flow of the retina, and make the detection beam Through the front focus of the human eye, the retina of the human eye is scanned parallel to the main optical axis or radial axis of the human eye; the beam parallel incident mode can effectively increase the angle between the detection beam and the retinal blood vessels, so as to realize the Quantitative detection of blood flow of blood vessel branches in different parts of the human retina, improving the accuracy of blood flow measurement results. At the same time, using a single-beam OCT system to measure the blood flow of the human eye retina reduces the complexity of the OCT retinal blood flow measurement device and greatly reduces the cost, which is conducive to promoting the popularization of retinal blood flow measurement technology in clinical medicine Applications to help the diagnosis and research of ophthalmic diseases.

The invention discloses a method for realizing synchronization of IC card / purse transaction and system accounting, and mainly relates to the field of IC card application. The main technical scheme of the invention comprises prepaid record reading and over-the-counter verification. The method mainly comprises the steps of organizing data messages M1, generating identifiers of transaction tracks, sending identifying codes, earmarking and updating the backend database, and the like. Compared with the prior art, the invention has a positive and obvious effect, and has the advantages of providing a method for realizing synchronization of the IC card / purse transaction and the system accounting, which provides a positive reference for the IC card application departments, guarantees the smooth operation of the IC card application system, promotes the popularization and application of the IC card, and makes contribution to the integrated development of industrialization and information.

The invention provides a household appliance control method, a cloud system, a family gateway general control device and a household appliance controller. The household appliance control method, the cloud system, the family gateway general control device and the household appliance controller are used for solving the problems that in the management control technology of the existing household appliances are complex in implementation and installment process, poor in appliance compatibility, and high in control error rate and implementation cost. The family appliance control method comprises the steps that the cloud system ensures that a user logins and initiates an operating command used for controlling a controlled appliance; a control message is generated according to the operating command and a control protocol of the controlled appliance; the control message is sent to the family gateway general control device which the controlled appliance belongs to so as to ensure that the family gateway general control device analyzes the control message according to the downloaded and stored control protocol of the controlled appliance, and control signaling is acquired, is sent to the household appliance controller of the controlled appliance, and is sent to the controlled appliance by the household appliance controller of the controlled appliance. According to the technical scheme, the household appliance control method, the cloud system, the family gateway general control device and the household appliance controller are easy and convenient to install, accurate to control and operate, good in compatibility and low in cost, and improve the popularization and application of intelligent home furnishings.

The invention discloses a driver fatigue state detection method based on attitude features, comprising: judging the driver's driving state by a first fatigue detection algorithm; if the first fatigue detection algorithm judges that the driving state is a fatigue state, triggering a second fatigue detection Algorithm, otherwise, it is judged that the driving state is a sober state; the processing of the second fatigue detection algorithm includes: extracting the posture features of the collected images, the posture characteristics including head posture characteristics and skeleton posture characteristics; judging head posture characteristics according to the head posture characteristics. Head state, if the head state is in motion state, judge the driving state as awake state; otherwise, judge the body state according to the skeleton posture characteristics, if the body state is in motion state, judge the driving state as awake state, otherwise judge the driving state as fatigue state. Multiple identifications are performed on the driver's fatigue state, and secondary screening is performed based on the driver's posture characteristics, which greatly reduces the false detection rate and improves the accuracy of driver fatigue state judgment.

A method for realizing switch-over between optical channel and radio channel includes setting up correlation of radio channel and optical channel between setting up terminal and switching in point, judging whether optical channel is blocked or not, sending switch over data of optical channel to radio channel, executing switch over of optical channel to radio channel, carrying out detection on switch over of radio channel to optical channel, sending switch over data of radio channel to optical channel and executing switch over of radio channel to optical channel.