60 results about "Tyndall effect" patented technology

The invention relates to a nonionic hydrophobic association and polymerization water soluble polymer prepared by opposite phase microemulsion and a preparation method thereof, and the polymer is copolymerized by a cation monomer having surface activity and a nonionic monomer. The microemulsion system fat phase is formed by mixing vash oil and spans surface active agent with tweens surface active agent; aqueous phase is the aqueous solution of the cation monomer having surface activity and the nonionic monomer. The micro-rubber latex of the polymer is characterized by very low viscosity which is closes to that of the fat phase, and has obvious tyndall effect; the micro-rubber latex of the polymer can quickly disperse in water, and can be directly used, so as to overcome the defects that the traditional hydrophobic association water soluble polymer has slow dissolution rate and poor solubility property. Therefore, the invention relates to the preparation method of the novel nonionic hydrophobic association polymer prepared by opposite phase microemulsion, and the polymer has the advantages of good water-solubility, viscosity increasing property, salt tackification, and the like, thus the method can be applied to the industries such as petroleum extraction, etc.

The invention discloses a preparation method of stable graphene colloidal dispersion liquid, and relates to the technical field of graphene preparation. The stable graphene colloidal dispersion liquid can be obtained by preparing graphene oxide via an improved Hummer's method, reducing graphene oxide and then treating the product by using a dispersing agent. The concentration of the stable graphene colloidal dispersion liquid is 0.21-0.25mg/mL and the stable graphene colloidal dispersion liquid contains 14-25wt% of single-layer graphene. The graphene colloidal dispersion liquid has Tyndall effects and has zeta potential of minus 41-minus 33mV and mean grain size of 250-400nm. The method is simple and practicable, is easy in control of the reaction process, does not have special requirements for equipment, is lower in cost, is easy to popularize and can be widely applied to the fields of nanoelectronics, sensors, nanocomposites, batteries, supercapacitors, hydrogen storage materials and the like.

The invention relates to a method for preparing transparent aluminum hydroxide liquid dispersion. The method comprises the following steps: 1) dissolving an aluminum salt in water or in an organic solvent to prepare an aluminum salt solution and dissolving alkali in water or in another organic solvent so as to prepare alkali liquor; 2) adding the aluminum salt solution and the alkali liquor into a hypergravity rotation packed bed or sleeve type annular micro-channel reactor for precipitation and crystallization so as to prepare an aluminum hydroxide precursor suspension; 3) transferring the aluminum hydroxide precursor suspension into a hydro-thermal reaction vessel for water/solvent heat treatment; 4) subjecting slurry obtained after water/solvent heat treatment to standing, cooling, filtering and washing so as to obtain a filter cake; and 5) dispersing the cleaned filter cake in a liquid medium so as to obtain the transparent aluminum hydroxide liquid dispersion. The transparent aluminum hydroxide liquid dispersion prepared in the invention has good stability and has the characteristics of high ZETA potential, obvious Tyndall effect and thixotropic gelation.

The invention discloses a preparation method for selenized carrageenan water-in-oil emulsion, and a product and application of the selenized carrageenan water-in-oil emulsion. The preparation method is characterized by comprising the following steps of: (1) dissolving selenized carrageenan into water to form a water phase; (2) heating corn oil and Span 80 on a water bath at temperature of 45 DEG C to form a uniform transparent light yellow solution, adding Tween 80 and uniformly mixing the Tween 80 and the uniform transparent light yellow solution to form an oil phase; (3) keeping the water bath, dropwise adding the selenized carrageenan solution into the oil phase and stirring the mixture into a transparent solution; and (4) detecting a finished product. The selenized carrageenan water-in-oil emulsion prepared by using the method is yellow liquid from the appearance; and after being heated and stirred, the selenized carrageenan water-in-oil emulsion cannot be layered at low temperature, so a user can observe uniform single phases by eyes and a Tyndall effect exists. The selenized carrageenan water-in-oil emulsion can be used as an additive for an oil food or is independently packaged into a capsule which is used as a functional healthy food and marketed. The selenized carrageenan water-in-oil emulsion has the advantages that: the particle size is suitable for living beings, the stability and the compatibility are high, the manufacturing process is simple and the practicability is extremely high.

The invention relates to bioactive peptide milk substrate liposome essence water having blue opalescence and a Tyndall phenomenon. The bioactive peptide milk substrate liposome essence water consistsof the following components in parts by weight of 10-60 parts of milk substrate liposome, 0.1-1 part of bioactive peptide, 0.1-1 part of ginsenoside, 0.002-0.01 part of yeast essence, 0.001-0.01 partof alpha-bisabolol, 1-3 parts of tea polyphenols, 0.01-1 part of hyaluronic acid, 0.5-5 parts of trehalose, 0.01-3 parts of epsilon-polylysine and the balance distilled water, wherein all of the components are 100 parts. The essence water firstly adopts naturally-extracted bisabolol and polylysine united preservative, is free from chemical additives, has the effects of moistening, resisting wrinkles and whitening skin, is quick to seep, good in absorption and rich in nutrients, and can solve the problems that at current, essence water is difficult to deliver to a skin base layer or only a fewof active components can be delivered to the skin base layer for development of effects.

The invention discloses an underwater UAV positioning method and an underwater UAV positioning device based on three-color laser. The underwater UAV positioning method comprises the steps that: S1, lasers of three different colors are incident into water in a coplanar, parallel and vertical manner, so as to form three laser beams underwater; S2, an underwater UAV captures positions of the laser beams and acquires an image containing the three laser beams; S3, the image is preprocessed to obtain pixel distances of the three laser beams; S4, and relative coordinates of the underwater UAV relative to the laser beams are obtained according to the pixel distances of the three laser beams and a photographic viewing angle of the image. The underwater UAV positioning method and the underwater UAVpositioning device utilize the Tyndall Effect to perform visual capture in turbid water areas through emitting three lasers of different colors underwater from above the surface of the water, and calculates the relative positions of the UAV relative to the lasers according to the photographic viewing angle and the transverse pixel length, thereby realizing precise positioning of the UAV at low cost.

The invention relates to a device and method in the field of stage light effect, particularly a stage light imaging device based on Tyndall effect. The Tyndall effect is a natural phenomenon, and plane mirror reflection is the basic common sense; and at present, the stage light effect mostly uses lasers, thus, has the defects of high manufacturing cost, waste of electric power and high maintenance cost, and does not satisfy the national requirements for environmental protection and energy saving. The technical scheme is as follows: a light source direction control box is arranged in a colloid gas atmosphere, a light source is arranged in the light source direction control box, the upper side is provided with an opening, and the extension line of the opening is provided with a reflecting mirror. The invention has the following advantages: light emitted from the opening in the light source direction control box forms a light cross in a colloid environment and forms a light beam under the reflecting mirror, the light source is continuously reflected, and colored paper is also used, so that a luxuriant optical effect can be made.

The invention discloses an iodide ion quantitative real-time detection technology. The technology mainly comprises the following steps: mixing a solution containing iodide ions with a nanogold solution for reaction; and observing a Tyndall effect optical signal of the mixed solution under a laser beam generated by a laser pen or a laser, wherein the signal intensity is in inverse correlation withthe iodide ion concentration. By using cheap portable photographing equipment to read a signal (a Tyndall effect optical signal), low-cost portable quantitative real-time detection of iodide ions or an analyte related to iodide ion concentration (namely iodide ions generated in a solution or substances for reducing the iodide ion concentration can be realized through a specific recognition reaction) can be realized. The technology disclosed by the invention has the outstanding advantages of simplicity in operation, low cost, no need of professional analysis instruments, suitability for on-siteanalysis and real-time detection and the like. The method can be directly popularized and applied to qualitative and quantitative detection of various samples in the fields of medical diagnosis, environment monitoring, food safety and the like.

The invention discloses a Tyndall phenomenon tester and an application method thereof. The tester comprises a laser light source box (1), at least one light emitter (2) and at least one group of light filtering components and a transparent container (6) for containing sol or a solution. The light filtering components comprise one group of light filters for performing light filtering on emitted laser light by selecting light filters of different colors. The light emitter (2) is connected with the laser light source box (1) for emitting laser light. The light filtering components are arranged on the transmitting end side of the light emitter (2). The laser light is filtered by the light filtering components and is incident into the transparent container (6) for tests. According to the invention, a light source is adopted to transmit light filters of complementary colours, the beam path is introduced outwards so as to change the shape, the sol adopts coloured sol, such as nanogold, etc., in the experiment, and the particularity of the Tyndall effect is disclosed.

The invention provides a lamplight assisting vehicle distance judgment system for a dense fog region of an expressway. The system comprises a dense fog detection unit, a controller, a power supply unit and a lamplight set. When dense fog is detected through the dense fog detection unit, the controller controls the lamplight set to be turned on. The lamplight set comprises lamps in two or more colors, the lamps are arranged alternately along a road, emitted light beams are transmitted horizontally along the road and perpendicular to the vehicle running direction, the intervals between the light beams are equal, and the light beams are arranged high and low in a staggered manner; and the intervals between the light beams are larger than or equal to the stopping sight distance under the maximum speed of the road segment of the expressway. By the adoption of the system, the dense fog is detected through the dense fog detection unit, an instruction is sent out through the controller, the lamplight set is turned on, the bright light beams are generated in the fog through the Tyndall effect, a driver judges whether an obstacle exists in a safety region in front of the driver or not through the integrity of the light beams, needed information of the driver in the dense fog is provided, the speed difference is reduced, and the traffic efficiency and safety on foggy days are improved greatly.

The invention discloses a visual optic sensing method for detecting a target-mediating agglutination reaction of nano-gold probes on the basis of Tyndall effect. In the method, by means of an analyticsubstance in a sample solution, a reaction solution, which contains a target capable of mediating the agglutination reaction of naked nano-gold probes or biofunctionalized composite nano-gold probes,can be obtained; then the reaction solution is mixed and reacted with a nano-gold probe solution in order to observe an optical signal of the Tyndall effect of the mixed solution under laser beam formed by a laser pen or a laser device, wherein the signal intensity is in positive correlation with the concentration of the analytic substance. Through a cheap portable device for reading the signal (i.e. the optical signal of the Tyndall effect), low-cost portable quantitative detection of the analytic substance is achieved. The method has simple operations and low cost, is free of special analytic instruments and equipment and is suitable for on-site analysis and real-time detection, and can be directly promoted in the fields such as medical diagnosis, environment monitoring, food safety andthe like.

The invention relates to the technical field of commodity trade, and provides a commodity display cabinet for realizing a Tyndall effect by utilizing a Bernoulli principle. The display cabinet comprises a cabinet body, the inner wall of the cabinet body is fixedly connected with a photoresistor, the outer wall of the photoresistor 2 is fixedly connected with a wire, the inner wall of the cabinet body is fixedly connected with a rotating wheel, and the outer wall of the rotating wheel is fixedly connected with a telescopic rod. The outer wall of the telescopic rod is movably connected with a rotating body, and a rail is arranged on the outer wall of the rotating body. According to the commodity display cabinet for realizing Tyndall effect by the Bernoulli principle, the rotating body drivesa conical body to ascend, the conical body pushes inclined sliding blocks towards the two sides, the inclined sliding blocks push linkage rods, the linkage rods push pushing blocks, the pushing blocks drive pushing rods to move, the pushing blocks move to compress springs, the pushing rods drive pistons to move, and the pistons make pushing to draw insecticide out of the interior of an insecticide box; the pistons pushe the insecticide to spray heads, the insecticide is sprayed out through the filter screen, the filter screen scatters and atomizes the insecticide into air, and the insecticidearea is increased.

The invention discloses a three-dimensional light path experiment demonstration method, which comprises the following steps of: injecting a proper amount of smoke into a transparent box body by using a smoke device, triggering three first laser pens in a vertical plane on a rotating seat, and observing a light convergence phenomenon of a convex lens on the vertical plane in a space based on a Tyndall effect; the speed regulator controls the motor to drive the rotating seat to rotate from slow to fast, and the convergence effect of the light beams from linear convergence to hollow conical light beams is observed; the inclination angle of the support is adjusted, the incidence inclination angle of parallel light sources of the three first laser pens in the vertical plane is changed, a second laser pen arranged on the other side, opposite to the first laser pens, of the transparent box is triggered, and light beams of the second laser pen pass through the main optical axis of the convex lens and are different from the light beams of the first laser pens in color. Therefore, the optical phenomenon that the convergence point deviates from the principal optical axis is observed. According to the invention, the experiment is expanded from plane two-dimensional observation to three-dimensional space and progressive layer by layer, the exploration method is changed from particularity to universality, and the demonstration process is more scientific and complete.