134results about How to "High saturation" patented technology

The invention belongs to the technical field of ultrasonic imaging, and particularly relates to a phase distortion correction method for craniocerebral ultrasonic imaging. The method comprises the following steps: acquiring ultrasonic echo data in a skull scene and a B-mode image obtained after beam forming; identifying the skull boundary of the transcranial B-mode image, and constructing a craniocerebral sound velocity model; solving a sound wave travel time matrix under the current sound velocity model on the basis of a ray theory method or an EiKonal equation, and applying the sound wave travel time matrix to beam forming to obtain an image after phase distortion correction; and a transcranial imaging result after beam forming is optimized, including space-time signal filtering processing, Doppler processing, microbubble detection positioning and tracking processing and compensation processing of signal attenuation caused by skull reverberation. According to the method, the axial blood flow velocity estimation precision can be greatly improved, the spatial resolution and saturation of an imaging result are improved, and high-quality skull imaging and hemodynamics and brain function research are facilitated.

The present application discloses a sensor capable of simultaneously detecting direct current and arc current, comprising: a shell, comprising an inner wall and an outer wall, a gap being arranged between the inner wall and the outer wall; a magnetic core, being located in the gap, and having an open-loop gap of a preset size on a preset side wall; a PCB board, comprising a first part and a second part, the second part being connected to the first part, the second part being embedded between the two side walls of the gap, the first part being located outside the magnetic core and abutting against the side where the gap is located; a direct current detection chip, being attached to the first surface of the second part; an arc current detection chip, being attached to the second surface of the second part; a signal processing module, being respectively connected to the direct current detection chip and the arc current detection chip, and processing and outputting the detected direct current signal and arc current signal; the present solution can simultaneously detect direct current and arc current, and has a small volume, which is conducive to on-board installation.

The invention discloses an MXene composite nanocellulose liquid crystal intelligent color-changing material as well as a preparation method and application thereof. The main components of the intelligent color-changing material comprise nanocellulose liquid crystal with a self-assembly structure and an MXene two-dimensional nanosheet. By compounding the MXene two-dimensional nanosheet with the nanocellulose liquid crystal phase, the MXene two-dimensional nanosheet can be used as a broadband absorbent and a black substrate to remarkably improve the color saturation of the nanocellulose liquid crystal; meanwhile, due to the two-dimensional nanosheet morphology, high photo-thermal conversion efficiency and high conductivity of MXene, the MXene composite nanocellulose liquid crystal intelligent color-changing material is flexible and adjustable in initial color, color-changing response speed, color-changing response sensitivity and color changing range. Based on the excellent characteristics of the nanocellulose liquid crystal and the MXene two-dimensional nanosheet, the MXene composite nanocellulose liquid crystal intelligent color-changing material has color change response to various stimulation factors such as environment temperature change, electric field change, magnetic field change, illumination and external applied stress.

The invention discloses a method for improving color and stability of anthocyanin through combination with punicalagin. The method comprises the step that punicalagin and anthocyanin are subjected to an intermolecular co-pigmentation reaction. According to the invention, punicalagin is adopted as a co-pigment molecule and is subjected to a co-pigmentation reaction with anthocyanin to form a punicalagin and anthocyanin compound, so that the color attribute of the anthocyanin is remarkably enhanced, and an anthocyanin solution presents brighter red color; the punicalagin and anthocyanin compound is prepared from punicalagin and anthocyanin, the heat stability, the light stability, the pH stability and the storage stability of anthocyanin are improved, the heat stability, the light stability and the storage stability of anthocyanin are further improved when the punicalagin and anthocyanin compound is prepared into microcapsules, and the punicalagin and anthocyanin compound has the advantages of being simple in process and low in cost. According to the invention, the utilization value of the anthocyanin is obviously improved, and a new thought is provided for the application of the anthocyanin in the food industry.

The invention relates to the technical field of color correction, in particular to a baked porcelain false tooth color adjusting method and system based on image analysis, and the method comprises the following steps: identifying teeth, gingiva and surrounding tissues in an image, determining a region boundary by using an edge detection technology, and calibrating a region according to gray difference. According to the method, teeth and surrounding tissues are accurately segmented by using an edge detection technology, accurate identification of a tooth area in an image is realized, a clear starting point is provided for color adjustment, a wave band with high reflectivity is selected, the quality of image data is optimized, the precision of subsequent color analysis is ensured, and hue, brightness and saturation are adjusted in a CIELAB color space; the matching degree of denture colors and natural teeth is improved, the visual coherence is enhanced, neural network analysis and time sequence data are integrated to predict long-term color changes, a real-time feedback mechanism automatically adjusts color parameters according to illumination conditions, the visual effect is continuously optimized, and the naturalness and consistency of colors in different environments are guaranteed.

The invention discloses a preparation technology of chickpea plant-based milk, and relates to the technical field of food processing. Comprising the following steps of cooking, crushing, homogenizing, first-time enzymolysis, pH adjustment, second-time enzymolysis, enzyme deactivation, filtering, ingredient blending, high-speed shearing, homogenizing, sterilizing and canning. According to the chickpea plant-based milk with the low glycemic index prepared on the basis of the enzymolysis technology, the protein content reaches 1.86 + / -0.05 g / 100g, the protein utilization rate is increased by 38.4%, and the fat content is 0.85 + / -0.13 g / 100g; the content of dietary fibers is 1.51 + / -0.29 g / 100g; the eGI value is 57.27 + / -1.35; the average particle size of the chickpea plant milk is 124.49 microns; the absolute value of the Zeta potential is 55.67 + / -2.16 mV; 11 flavor substances contributing to sense organs are detected in the plant milk, the content of beany flavor substances such as hexanal is reduced, other flavor substances are enhanced, and the plant milk is endowed with mellow fragrance, light fruit fragrance and more distinct layering sense.

The utility model relates to a backpack type cooling structure for a vertical motor, which is used for cooling the motor and comprises a circulating shell and a water heat exchanger, and the circulating shell is fixed on one side of the motor; a compartment partition plate is arranged in the circulation shell, the circulation shell comprises a first cold air cavity, a cooling cavity and a second cold air cavity which are sequentially communicated, an air inlet and two air outlets are formed in the side, making contact with the motor, of the circulation shell, the air outlets are symmetrically formed in the two sides of the air inlet, and the cooling cavity is communicated with the rotor side of the motor through the air inlet. The first cold air cavity and the second cold air cavity communicate with the two ends of the motor through air outlets correspondingly. The water heat exchanger is fixed in the cooling cavity, and the water heat exchanger is matched with the air inlet in shape; and fans are arranged in the first cold air cavity and the second cold air cavity. Compared with the prior art, the motor cooling device has the advantages of high motor cooling consistency, good water cooling effect and the like.

The GaN-based compound semiconductor laser element comprises a substrate, a lower limiting layer, a lower waveguide layer, an active layer, an upper waveguide layer and an upper limiting layer which are sequentially arranged from bottom to top, and an electron spin state regulation and control layer is arranged between the lower limiting layer and the lower waveguide layer. And designing piezoelectric polarization coefficient distribution of a first electron spin state regulation layer and a second electron spin state regulation layer in the electron spin state regulation layer, and a relation of piezoelectric polarization coefficients among the lower limiting layer, the lower waveguide layer, the first electron spin state regulation layer and the second electron spin state regulation layer. The performance of the semiconductor laser element can be improved.

The invention discloses a motor and an electric appliance, the motor comprises a stator assembly and a rotor assembly, the stator assembly comprises a stator iron core, and the stator iron core is provided with a stator inner hole; the rotor assembly is arranged in the stator inner hole and comprises a rotor iron core and a plurality of rotor magnetic poles, and the rotor magnetic poles are arranged on the rotor iron core in the circumferential direction of the rotor iron core and divide the rotor iron core into a plurality of iron core units; the outer contour line of at least one iron core unit comprises one or more sections of arcs, and the stator iron core is provided with a circular virtual inner contour line; a first gap is formed between the outer contour line of the iron core unit and the virtual inner contour line of the stator iron core, the first gap located on the first side of the iron core unit is larger than the first gap located on the second side of the iron core unit, the first side is one side of the rotation direction of the rotor assembly, and the second side is one side of the reverse rotation direction of the rotor assembly. The motor iron loss can be reduced, the motor efficiency is improved, and the torque pulsation and the radial electromagnetic force are improved.

The invention discloses a gene amplification fluorescence in situ hybridization image intelligent identification system based on deep learning. According to the technical scheme provided by the invention, in the system, an image acquisition module is used for performing image acquisition on a sample marked by a FISH technology by using a microscope to obtain an initial image; the SAM segmentation module is used for carrying out image segmentation on the initial image based on an SAM model to determine a segmented image; the ResNet comparison module is used for comparing each quasi-cell image by using the standard cell image, and topping a real cell image; the fluorescent dot counting module is used for carrying out fluorescent dot identification and counting based on a color filtering technology, and carrying out gene amplification detection based on a target gene signal and a chromosome centromere signal. According to the method, more accurate intelligent segmentation of the FISH image is realized based on the SAM model, the accuracy of cell judgment is further improved by using a deep learning technology, the identification and counting of target gene signals are quickly realized, and the gene amplification level is better judged.

The present application belongs to the field of image processing technology, and in particular, relates to a method, device, computer equipment and storage medium for adjusting image saturation, wherein the method for adjusting image saturation comprises: obtaining the saturation of each pixel of the image to be adjusted; dividing the image to be adjusted into a plurality of matrix partitions, and performing pooling processing on each matrix partition to obtain a first matrix; performing mobile convolution processing on the first matrix according to a preset first convolution kernel to obtain a second matrix; obtaining the addition coefficients corresponding to each matrix partition according to the first matrix, the second matrix and a preset saturation change slope; performing mean filtering processing on each matrix partition based on the addition coefficients corresponding to the matrix partitions to obtain a target image corresponding to the image to be adjusted after saturation adjustment. The present application uses a convolution method to evenly adjust the saturation of adjacent areas, and gives different gains to different saturations, so that the resulting image is softer and more natural.

This invention relates to a production process for bamboo-cotton blended fabric, belonging to the field of fiber weaving technology. The process includes the following steps: bamboo fiber yarn is treated with cellulase and then impregnated in a carboxylated chitosan solution. After stirring, the yarn is removed, and excess solution is removed to obtain modified bamboo fiber yarn. Cotton fiber yarn is reinforced with a cotton fiber reinforcing agent to obtain modified cotton fiber yarn. The modified bamboo fiber yarn and cotton fiber yarn are spun together to prepare a base fabric. The base fabric is then treated with a processing solution to obtain a bamboo-cotton blended fabric. This invention provides an improved process for preparing bamboo-cotton blended fabric, which can improve the fabric's wash fastness, comprehensively enhance its antibacterial effect, and improve its mechanical properties, thereby meeting the market demand for high-quality textiles.

The present invention belongs to the technical field of chlorfenapyr production, and specifically provides a continuous device for chlorfenapyr crystallization, including a storage tank, the liquid outlet of the storage tank is connected to the liquid inlet of a falling film evaporator, the liquid outlet of the falling film evaporator is connected to a first temporary storage tank, the first temporary storage tank is connected to a condensation crystallizer, the condensation crystallizer is connected to a condensation crystallization kettle, the liquid outlet of the condensation crystallization kettle is connected to the liquid inlet at the top of a particle classification device, the particle classification device includes a shell, a third screen is fixedly arranged on the upper part of the shell, a third discharge port is arranged on the shell on the lower side of the third screen, a second screen is fixedly arranged on the middle part of the shell with a reverse tilt, the screen hole diameter of the second screen is small, a second discharge port is arranged on the shell on the lower side of the second screen, the second discharge port is connected to the condensation crystallization kettle through a pipeline, the third discharge port is connected to the centrifugal separator through a pipeline, and a collection box is arranged at the discharge port of the centrifugal separator. Through the above arrangement, the crystal particle size can be controlled.

This invention discloses a preparation process for chickpea plant-based milk, relating to the field of food processing technology. The process includes the following steps: cooking → crushing → homogenization → first enzymatic hydrolysis → pH adjustment → second enzymatic hydrolysis → enzyme inactivation → filtration → ingredient blending → high-speed shearing → homogenization → sterilization → bottling. The chickpea plant-based milk prepared by this invention based on enzymatic hydrolysis technology has a protein content of 1.86±0.05g / 100g, with a protein utilization rate increased by 38.4%, a fat content of 0.85±0.13g / 100g, a dietary fiber content of 1.51±0.29g / 100g, an eGI value of 57.27±1.35, an average particle size of 124.49μm, and an absolute zeta potential of 55.67±2.16mV. Eleven flavor compounds that contribute to sensory evaluation were detected in the plant milk. The content of beany substances such as hexanal was reduced, while other flavor compounds were enhanced, giving the plant milk a mellow aroma, a subtle fruity fragrance, and a more distinct sense of layering.

The utility model relates to an electronic packaging accessory, in particular to a ceramic shell with low lead resistance, which comprises a ceramic base body, an inner cavity is arranged on the ceramic base body, a through hole is arranged on the wall of the inner cavity, a pole plate covering the opening of the through hole is arranged on the wall of the inner cavity, and the lead resistance of the pole plate is lower than that of the through hole. A conductive hanging hole pattern layer is arranged on the side wall of the through hole, a copper column is inserted into the through hole, one end of the copper column is flush with the end, away from the inner cavity, of the through hole, the end is connected with a lead, the other end of the copper column is located in the through hole, and a gap is formed between the other end of the copper column and the polar plate; a gap is formed between the copper column and the side wall of the through hole, and the gap and the gap are filled with metal solder. The ceramic shell provided by the utility model is simple to assemble, the saturation degree of the filler in the through hole is high, the requirement on the aperture of the through hole is low, the production operation difficulty is low, the product percent of pass is high, and the performance is stable.

The invention relates to a thermal transfer receiving sheet capable of transferring a high-color-concentration image and a preparation method of the thermal transfer receiving sheet, and relates to the technical field of thermal transfer. The heat transfer printing receiving sheet comprises a receiving layer, and the receiving layer is prepared from the following raw materials in parts by weight: 30 to 60 parts of vinyl chloride-vinyl acetate resin, 3 to 10 parts of polyvinyl butyral resin, 0.1 to 5 parts of poly-alpha olefin and 0.1 to 1 part of release agent. According to the heat transfer printing receiving sheet formed by the raw materials of the receiving layer, the color saturation of an image on the heat transfer printing receiving sheet can be obviously improved, the heat transfer printing receiving sheet has high demolding performance, and the problems of adhesion, fading and other transfer printing defects occurring in transfer printing are solved.

An electrophoretic display includes a control substrate having a first surface and a second surface, a drive circuit layer, a control electrode layer, an electrophoretic layer, and an opposite substrate. The viewing surface of the electrophoretic display is located on the first surface of the control substrate. When seen from the first surface of the control substrate to the display area of the electrophoretic display, the aperture ratio of the control substrate of the electrophoretic display is not less than 70%.

The invention belongs to the technical field of pharmaceutical chemicals, and provides a continuous preparation method of hydrogenated lecithin based on a microreactor. The method comprises the following steps: (1) dissolving lecithin in a solvent to obtain a lecithin solution; (2) continuously pumping the lecithin solution into a microreactor filled with a palladium-loaded catalyst, and simultaneously introducing hydrogen to carry out hydrogenation reaction; (3) after the reaction is finished, removing the solvent to obtain hydrogenated lecithin; the solvent is one or more of methanol, ethanol, normal hexane or normal heptane. The microchannel continuous flow technology is matched with the selection of the catalyst and the solvent, so that the lecithin is hydrogenated more thoroughly, and the stability, dispersity and emulsibility of the hydrogenated lecithin are improved; besides, an adopted solvent system is green and safe, reaction conditions are mild, a catalyst does not need to be separated, continuous operation, short reaction time and high production efficiency can be achieved, safety and economy are obviously improved, and the method is suitable for industrial application.

The utility model relates to the technical field of moisture-proof medicine bottles, in particular to a replaceable moisture-proof medicine bottle which comprises a medicine bottle assembly and a replacement assembly. The medicine bottle assembly comprises a medicine bottle body and a bottle cap. A circular opening a is formed in the bottom of the medicine bottle body, the inner wall of the circular opening a is connected with a lower damp-proof plate, and a circular through hole b is formed in the bottle cap and connected with an upper damp-proof plate. The replacement assembly is connected to the medicine bottle assembly; the replacement assembly comprises a bottom shell, a connecting thread a, a moisture-proof agent bag a, an adjusting piece a, a top shell, a connecting thread b, a moisture-proof agent bag b and an adjusting piece b; the bottom shell is connected to the outer wall of the medicine bottle body through a connecting thread a, and the bottom shell is hollow and connected with a moisture-proof agent bag a and an adjusting piece a; the top shell is connected to the outer wall of the bottle cap through connecting threads b, and the interior of the top shell is hollow and connected with a moisture-proof agent bag b and an adjusting piece b. The replaceable moisture-proof medicine bottle can be conveniently adjusted according to the use environment of the medicine bottle, the used through holes are adjusted, and the practicability of the replaceable moisture-proof medicine bottle is conveniently improved.

In order to solve the problems that an existing temperature-sensitive color developing layer containing a temperature-sensitive color developing material is low in color-changing sensitivity and slow in temperature response, the temperature-sensitive color developing assembly comprises a transparent film layer, a color-changing hydrogel layer and a non-transparent film layer, the color-changing hydrogel layer is arranged between the transparent film layer and the non-transparent film layer, and the color-changing hydrogel layer is arranged between the transparent film layer and the non-transparent film layer. The color-changing hydrogel layer comprises a first color-changing hydrogel area, a second color-changing hydrogel area and an nth color-changing hydrogel area, n is greater than 2, the color developing temperature of the first color-changing hydrogel area is T1, the color developing temperature of the second color-changing hydrogel area is T2, the color developing temperature of the nth color-changing hydrogel area is Tn, and T1 < T2 < Tn. According to the temperature sensing type color developing assembly, the temperature response rate is increased, the length of the color developing strip is gradually increased along with the gradual increase of the temperature, the response rate is high, the color is clear, and the sensitivity is high.

The invention discloses a polyester fabric liquid disperse dye washing-free printing process, and particularly relates to the technical field of polyester fabric printing, and the polyester fabric liquid disperse dye washing-free printing process comprises the following steps: S1, pretreating a polyester fabric; s2, spraying and printing the liquid disperse dye onto the polyester fabric by using a printing machine; s3, carrying out drying treatment on the printed polyester fabric; s4, carrying out shaping treatment on the dried polyester fabric; and S5, finishing and packaging the polyester fabric subjected to the setting treatment. Through the arrangement of the curing devices, when the printing device moves left and right for printing, one curing device can collect gas, and the other curing device can exhaust gas, so that curing of the liquid disperse dye is accelerated, and the liquid disperse dye is prevented from falling off after making contact with a pressing roller; the influence of the material pressing roller on the printing effect of the polyester fabric is avoided, so that chromatic aberration and permeation are reduced, the definition of printed patterns and the saturation degree of colors are improved, and the printing quality is improved.

The invention relates to an image display method and device, electronic equipment, a storage medium and a program product. The method comprises the following steps: acquiring to-be-displayed image data and a reference color gamut corresponding to the to-be-displayed image data; for each pixel point in the to-be-displayed image data, determining a reference color gamut boundary corresponding to the pixel point based on the hue and the reference color gamut corresponding to the pixel point; determining a boundary intersection point of a straight line where the initial color gamut point and the reference color gamut point of the pixel point are located and a reference color gamut boundary; determining a target color gamut point corresponding to the pixel point based on the linear distance between the reference color gamut point and the boundary intersection point and the linear distance between the reference color gamut point and the initial color gamut point; and displaying the to-be-displayed image data based on the hue corresponding to each pixel point and the target color gamut point. By adopting the method, the image display quality can be improved.

The utility model provides a mining intelligent encapsulation and intrinsic safety type display screen, and belongs to the technical field of mining display equipment. The problems that an existing mining display screen is poor in display effect, poor in safety, poor in sealing performance and the like are solved. Comprising an image display module, an image receiving card, an image control card, an audio power amplifier board and an encapsulated and intrinsically safe power supply, the image display module is connected with an image transmission port of the image receiving card, a receiving control card data network port of the image receiving card is connected with the image control card through a network cable, and the encapsulated and intrinsically safe power supply supplies power to the image receiving card and the image control card; a power supply of the image receiving card is connected with a power supply of the image display module and is used for supplying power to the image display module, a power supply of the audio power amplifier board is connected with a power supply of the image control card and is used for supplying power to the audio power amplifier board, and an audio source of the image control card is connected with an input port of the audio power amplifier board and is used for transmitting audio data to the audio power amplifier board; the utility model is applied to coal mines.

The present invention relates to a method for analyzing the material transformation of extracellular polymers during ultraviolet / peracetic acid disinfection at a molecular level, which belongs to the technical field of sewage treatment, and comprises the following steps: step S1. adding peracetic acid to water containing extracellular polymers, and then stirring evenly to obtain a mixed liquid; step S2. subjecting the mixed liquid obtained in step S1 to ultraviolet irradiation to obtain various graded components; step S3. performing a systematic analysis on the various graded components obtained in step S2. The method for analyzing the material transformation of extracellular polymers during ultraviolet / peracetic acid disinfection at a molecular level of the present invention is suitable for analyzing the material transformation of extracellular polymers under ultraviolet / peracetic acid treatment from a molecular level, and the peracetic acid used is widely available and inexpensive, and can be used for sewage treatment to effectively reduce costs; due to the short reaction time, the ultraviolet dose used in the process is low, so the construction cost and operation cost are low.

The invention provides a cloth pattern printing device based on inkjet transfer printing. The invention discloses a cloth pattern printing device based on inkjet transfer printing. The cloth pattern printing device comprises two machine frame inner plates which are vertically arranged and mutually symmetrical. According to the cloth pattern printing device based on jet drawing transfer printing, by arranging the transfer printing cylinder, when the device is used, cloth raw materials and thermal dye sublimation transfer printing paper printed with patterns are fed into the device together, and the cloth and the thermal dye sublimation transfer printing paper are heated and extruded through the transfer printing cylinder; patterns on the transfer paper are transferred to the surface of the cloth in a thermal sublimation mode, the patterns transferred in the mode are high in definition, fine, extremely high in color rendition degree and saturation degree and capable of perfectly presenting fine effects such as gradual change and complex images, dye and fibers are integrated, a surface glue layer does not exist, and the fabric is not prone to falling off. The original soft hand feeling and good air permeability of the cloth can be completely reserved, and meanwhile the finished product is resistant to washing, friction and solarization, not prone to fading, cracking or peeling and outstanding in durability.

The invention provides a hydrate sediment sample preparation and mechanical property testing device and method. The hydrate sediment sample preparation and mechanical property testing device comprises a base, a base, a jacking force application assembly, a plurality of annular assemblies, a water pipe branch and an air pipe branch. The base is arranged above the base and is connected with the base in a sliding manner; a shearing rod is arranged on one side of the base in the horizontal direction. The annular assemblies are arranged above the base, and a columnar cavity is defined by the annular assemblies and used for providing a filling space for a hydrate sample; the height of the columnar cavity is smaller than the radius of the columnar cavity, so that the length-diameter ratio of the hydrate sample is smaller than or equal to 1; the water pipe branch and the air pipe branch are respectively communicated with the columnar cavity; and the jacking force application assembly is arranged above the annular assembly. According to the invention, by arranging the equipment with small length-diameter ratio, the length-diameter ratio of the prepared hydrate sediment sample is ensured to be small, so that the permeation efficiency of gas and moisture in the sample is higher, and the distribution of hydrate in the sediment is more uniform.

The invention discloses a fin type three-color integrated Micro-LED display device and a preparation method of the fin type three-color integrated Micro-LED display device. The display device relates to the field of optical semiconductors, and comprises a driving substrate, the surface of the driving substrate is provided with a plurality of groove areas, and the plurality of groove areas are arranged in an array; an LED bar unit is embedded in each groove area, and the LED bar units can be driven independently; the LED bar unit comprises a plurality of LED units and a plurality of electrode layers, the LED units and the electrode layers are arranged in a penetrating manner and are fixed in the groove area of the driving substrate in a fin shape, and the two electrode layers respectively form two outermost layers of the LED bar unit; according to the method, after wafer vertical bonding and deep groove etching, rotation mass transfer is carried out; the etched LED bar units are rotationally and horizontally placed in the grooves of the driving substrate, each LED bar unit comprises the light-emitting areas and the metal areas, the light-emitting areas are horizontally arranged in a fin shape, the light-emitting area is small, then nanoscale light emitting can be achieved, and no light crosstalk phenomenon exists in the vertical direction; the metal area can block and reflect light of the light-emitting area, light crosstalk in the horizontal direction is avoided, meanwhile, the brightness of the light-emitting area is improved, and therefore the light-emitting efficiency and the display saturation of the LED pixel bar unit are improved.

The present invention discloses a method and system for increasing the production of low-carbon olefins and aromatics, comprising the following steps: (1) sending light naphtha to a normal isomerization separation unit to produce normal components and non-normal components; (2) the non-normal components may also be sent to an aromatization unit to obtain propane, normal butane, isobutane and C5+ components after separation; (3) propane, normal butane and isobutane are treated in different ways to obtain ethylene and propylene. The preparation method provided by the present invention greatly improves the yield of low-carbon olefins and aromatics, significantly improves the utilization efficiency of naphtha, and realizes the rational allocation of resources.

The utility model relates to a mixed light source system and projection equipment. The mixed light source system comprises a laser assembly, an LED assembly and a light guide assembly. The laser assembly comprises a red laser used for emitting a red laser beam, a green laser used for emitting a green laser beam and a blue laser used for emitting a blue laser beam. The LED assembly is used for emitting LED light beams, and the LED light beams at least comprise red LED light beams; the light guide assembly is located on the light emitting sides of the red laser, the green laser, the blue laser and the LED assembly, and the light guide assembly is used for guiding the red laser beam, the green laser beam, the blue laser beam and the LED beam to the same direction for propagation, so that a target beam is formed; according to the invention, the speckle problem of the mixed light source system can be reduced, and the brightness is improved.