31results about How to "Complementary advantages" patented technology

The invention relates to a novel passive targeting nano emulsion with skin whitening effect and a preparation method thereof. The invention uses a novel passive targeting transdermal delivery dosing system TDDS-nano emulsion as a carrier of a function component for whitening or lighting the skin, uses different physical and chemical properties, action mechanism and actual effect of each skin whitening function component, especially the action advantages of certain novel skin whitening function components, and provides skin whitening effect nano emulsion systems with two joint applications in morning and evening matched with each other. The two joint applied nano emulsion systems not only have minimum spherical grains, extremely even distribution of nano-scale grains, remarkable passive targeting function, good transdermal absorption and strong penetrability, but also have extremely even, exquisite, smooth and glossy texture of the nano emulsion, is quite comfortable after coating on the face or the skin, has no stimulus and good stability; and the nano is light yellow, beautiful in appearance, bright and transparent, clear and crystalline, has light opalescence, and is adhesive but not sticky, thick but not heavy, oily but not greasy.

The invention relates to a wide spectrum response photoelectric detector and a preparation method thereof. The preparation method comprises the steps that (a) a sapphire substrate is selected; (b) a bottom electrode is manufactured on the surface of the sapphire substrate; (c) a light absorption layer is manufactured on the surface of the bottom electrode; and (d) a top electrode is manufactured on the surface of the light absorption layer so as to complete preparation of the wide spectrum response photoelectric detector. According to the wide spectrum response photoelectric detector, the double-heterojunction structure is adopted so that double potential barriers can be formed, the leakage current can be effectively reduced and the device reliability of the photoelectric detector can be greatly enhanced.

The invention belongs to the technical field of testing and particularly relates to a quaternary composite array sensing layout method based on PIR (passive infrared) sensors and microphones, aiming to solve the technical problems of mutual interference of spatial layout and poor sensing effect of a composite sensor in a limited space currently. The quaternary composite array sensing layout method based on the PIR sensors and the microphones comprises a quaternary cross-shaped PIR sensing array and a quaternary microphone array. The quaternary cross-shaped PIR sensing array comprises four human body probers which are arranged at equal intervals by surrounding a central point, a probe of each human body prober faces outward, and the four human body probers are used for probing four directions on the horizontal plane respectively. The quaternary microphone array comprises four microphones which are arranged in four dual-sensing areas respectively. The quaternary composite array sensing layout method based on the PIR (passive infrared) sensors and the microphones has the advantages that by means of composite optimization of the PIR array and the sensor array, the problem that micro sensing node space is limited is solved; the two kinds of arrays are combined mutually but do not interfere with each other; a target can be discovered quickly and positioned precisely.

The invention relates to the technical fields of Ethernet communication technologies and infrared communication technologies, in particular to an infrared transponder for realization of Ethernet and local control infrared equipment and a method of the infrared transponder. The method is characterized in that: when an infrared signal enters, an infrared receiving module (1) completes an infrared receiving function and sends signal information to a main control central processing unit (CPU) (2); and the main control CPU (2) decodes the infrared signal according to the information sent by the infrared receiving module (1), captures a carrier frequency of the infrared signal, generates infrared data and a unique number of the infrared data, encrypts the information and sends the information to the Ethernet through a network controller (3). Compared with the prior art, the invention has the advantages that: the cost is greatly reduced, and the demand of people for more, faster and completeinformation is met to a greater extent; during integration of a digital technology, the digital technology and a simulation technology are combined, so an advantage complementary among the simulationtechnology, the digital technology and an internet technology is realized.

The invention belongs to the field of gold ore resource dressing and particularly discloses a processing method of refractory gold ore. The method comprises the steps of smash homogenate, oxidation decarbonization, microorganism catalysis, cyanidation gold extraction and the like. The invention also discloses a microorganism microbial agent for processing refractory gold ore. When the method disclosed by the invention is utilized, sulfur, arsenic and carbon elements in the gold ore can be effectively removed, meanwhile, the leaching rate of gold elements is improved, and better application prospects are realized.

The invention relates to the technical field of pesticides, in particular to an insecticidal composition, an insecticidal and bactericidal composition and a seed treatment suspending agent. The insecticidal composition is composed of chlorantraniliprole and thiacloprid, wherein the weight ratio of the chlorantraniliprole to the thiacloprid is (1-10):(1-10). After compound use of the chlorantraniliprole and the thiacloprid, significant synergism is achieved in the aspect of insecticidal effect. Fluopyram is added in a mixture of the chlorantraniliprole and the thiacloprid, the fluopyram has noinfluence on actual control effect and synergism of insecticide, meanwhile, complementary advantages can be achieved, and disease can be also controlled while the insecticidal effect is achieved. Theseed treatment suspending agent can be applied to seed coating of crops of rice, peanuts, corn, wheat, etc. before seed sowing, has good control effect on crop diseases and insect pests and can help the crops to have the significant effect of yield increase.

The invention relates to a rail belt-type conveyor with rotary wheel structures. The rail belt-type conveyor comprises a support, a headstock, a tailstock, an upper guide rail, a lower guide rail, the rotary wheel structures, spiral steering mechanisms, towing trolleys, a tape, a steel wire rope, a driving roller, steering racks and vertical racks, wherein the tape is arranged on support roll groups on two ends of the support for rotation in a surrounding manner; the towing trolleys are separated from the tape or are in contact with the tape on the middle part of the support through the rotary wheel structures and the spiral steering mechanisms; the upper guide rail and the lower guide rail are both arranged on the support through pressing plates; the headstock is arranged on the head part of the support; the tailstock is arranged on the tail part of the support; and the steering racks and the vertical racks are arranged between the tailstock and the headstock. The rail belt-type conveyor has the advantages that the structure of the conveyor is optimized, and the use cost is lowered, so that complementary advantages are realized; the operation cost is greatly lowered; a part of ordinary support rolls are replaced by the towing trolleys, so that the cost and assembly cost are lowered; and revolutionary innovation is brought to bulk material transportation.

The invention discloses a focal region regulation and control method of a semispherical phased array ultrasonic energy transducer based on 256 array elements. The focal region regulation and control method of the semispherical phased array ultrasonic energy transducer based on 256 array elements includes the following steps: S1, randomly designing the center coordinate position of the first arrayelement; S2, when the center distance between neighboring array elements is no less than 18mm, selecting the nearest array element as the center coordinate position of the next array element, and according to the above steps, successively designing other array elements until the number of the array elements is 256; S3, exciting all the 256 array elements to realize transcranial focusing, performing value simulation on the temperature fields which are formed in the x, y and z directions of the three dimensional space, and determining the safe regulable and controllable range of the energy transducer; and S4, selecting part of the array elements of the energy transducer to excite to enlarge the safe regulable and controllable range of the energy transducer. The focal region regulation and control method of the semispherical phased array ultrasonic energy transducer based on 256 array elements can avoid occurrence of skull scald during the treating process of transcranial neurological disease, can realize focusing of small-opening non semispherical energy transducer in the large opening semispherical energy transducer, can enlarge the focal region regulation and control range, and canimprove the transcranial focusing performance of the energy transducer.

The invention provides a method for preparing homogenesis composite film by spiral fiber in coconut fiber and its application. The method for preparing homogenesis composite film by spiral fiber in coconut fiber is characterized by comprising the following steps: completely immerse the coconut fiber in 0.2-5 g / LNaOH solution at 60-98 DEG C for 10-60 minutes according to the bath ratio of 1: 30-1: 50; after stirring and synchronous ultrasound vibration for 0.2-2 hours, filter and obtain a unicellular fiber wet screen; perform extrusion, fluid exhaustion and multi-grade traction process on the obtained unicellular fiber wet screen through 2-4 grade traction zones consisting of 3-5 pairs of rollers; clean the obtained submicron spiral fiber pulp circularly and perform the natural disordering wet formation for 1-3 times; and then directly soak clean pulp or dried clean pulp to cellulose original liquid with weight concentration of 2%-50%; separate out and solidify submicron spiral fiber pulp and cellulose by buffer liquid; obtain the homogenesis composite film. The homogenesis composite film can be used as the biomedical flexible cellulose composite material, or ecological, functional and comfortable elastic film material.

The invention relates to a combined cooling, heating and power system with complementary solar energy and biogas energy, and belongs to the technical field of energy utilization. The invention can realize the complementary utilization of solar energy and biogas energy and effectively improve the energy utilization rate. The combined cooling, heating and power system with complementary solar energyand biogas energy comprises a lithium bromide absorption refrigeration system, a solar collector hot water circulation system, a biogas fermentation storage system, a biogas power generation system and a household biogas delivery system. When the solar energy is sufficient, one the one hand, the hot water generated by the solar heat collector drives the lithium bromide absorption refrigeration system with a membrane energy storage device to supply cooling; on the other hand, the hot water generated by the solar heat collector can supply heat to families or domestic hot water directly; in addition, the temperature in the biogas fermentation tank can be controlled, so that the biogas fermentation tank is in an optimal fermentation state to maximize the biogas output. When solar energy is insufficient, the stored biogas enters an auxiliary boiler to burn and release heat so as to make up for the lack of solar energy. The generated biogas can be used for power generation, and the tail gasdischarged by an engine is subjected to waste heat recovery through a waste heat recovery device, so the hot water returned to the solar heat collector can be heated and the air entering the engine can be subjected to waste heat. Meanwhile, the biogas in the biogas storage tank can be directly delivered to the household kitchen to meet the demand of daily life for gas, and the combined supply ofcooling, heating and power is realized.

The invention relates to a wide spectrum response photoelectric detector and a preparation method thereof. The preparation method comprises the steps that (a) a sapphire substrate is selected; (b) a bottom electrode is manufactured on the surface of the sapphire substrate; (c) a light absorption layer is manufactured on the surface of the bottom electrode; and (d) a top electrode is manufactured on the surface of the light absorption layer so as to complete preparation of the wide spectrum response photoelectric detector. According to the wide spectrum response photoelectric detector, the double-heterojunction structure is adopted so that double potential barriers can be formed, the leakage current can be effectively reduced and the device reliability of the photoelectric detector can be greatly enhanced.

The patent of the present invention relates to a straw degradation and biogas slurry filtration coupling device and method. A coupling device and method for straw degradation and biogas slurry filtration, the structure of which mainly includes a straw pre-treatment chamber, a biogas slurry filter tank shell, a horizontally moving lifting device, and a straw post-treatment room. The left end of the biogas slurry filter tank shell is provided with a Biogas slurry stock solution input pipe, the right end is provided with a biogas slurry filter solution output pipe, inside is provided with a baffle plate, a straw filter pool and a filter screen; the horizontal moving lifting device is equipped with a moving device and a lifting device, and the lower end is connected with a traction rope. A square charging shell; straw material is installed inside the charging shell. Through the straw pre-treatment room, the straw raw material is made into smaller tubers and put into the square charging shell, and the horizontal moving lifting device transports the square charging shell to the designated straw filter tank to realize biogas slurry filtration, and the filtration is completed. The straw material is transported to the straw post-processing room for composting, and the composted straw material and biogas slurry filter liquid are returned to the field for treatment.

The invention provides a lossless discrimination method for olive oil blended with small amount of soybean oil or corn oil. According to the method, a temperature-variable Raman spectrometer is used to detect an oil sample, the detection spectrum collection scope is 900-1800m<-1>, the detection temperature is lower than or equivalent to the temperature when the oil sample to be tested in a solidified state, and the obtained characteristic spectrum of the oil sample is discriminated by visual comparison or / and systematic cluster analysis. The method is characterized in that fewer samples are used, pre-treatment is not needed, samples are not damaged, operation is simple and rapid, fingerprint information is abundant and the discriminability is high; the authenticate olive oil can be rapidlydiscriminated from adulterated olive oil even those the adulterating weight is lower to 5%, the counterfeit edible oil can be discriminated much efficiently in a more convincing way, and the method has great significance in discriminating the counterfeit edible oil and guaranteeing the public health safety.

The invention relates to a method for controlling carbon emission in the metallurgical industry, and belongs to the technical field of metallurgical environmental protection. According to the technical scheme, the method comprises the following steps: immersing CO2 into an alkaline solution, and carrying out an acid neutralization reaction with a soluble alkaline substance so as to generate a high-added-value acidic precipitate; the neutralization reaction condition is that the acidity of H2CO3 generated when CO2 is dissolved in the reaction liquid is smaller than that of acidic precipitates generated by the reaction. The method has the beneficial effects that CO2 is turned into wealth from waste, the high-added-value product SiO2 white carbon black can be produced while emission of CO2 is eliminated, and particularly, a large amount of heat energy produced by solid waste melting and solid-phase reduction of metallurgical enterprises and released CO2 gas are utilized for producing SiO2 white carbon black, so that the problem of CO2 emission of the metallurgical enterprises is solved, and high value-added by-products can be produced, and the method is green, environment-friendly, efficient and energy-saving, and has complementary advantages.

The invention discloses a production method of sesame-flavor pit mud, and belongs to the technical field of wine making. The method comprises the following steps: mixing and wetting loess, sludge in a lotus pond, aged pit mud, fresh waste fermented grains, soya bean meal, pea meal, bone meal, pot-bottom water, yellow water and mild wine after-run according to a reasonable proportion; then, adding a proper amount of pit mud fermentation liquor, As3.951 aspergillus oryzae fermentation liquor, yeast fermentation liquor and Daqu powder for making wine into the wetted materials; lastly, fermenting and culturing to obtain the sesame-flavor pit mud. The sesame-flavor pit mud is grey brown in color, is pure in flavor, has strong aged pit mud smell, light ester flavor and wine flavor, is durable in flavor, soft, mature and fine, is free from excitation feel, is free from air bubbles on sections, is uniform in quality and free from impurities, has remarkable viscosity, and is suitable for producing sesame-flavor flavoring wine. Moreover, as proved by semi-works, the yield and high-quality rate of the produced sesame-flavor wine are increased greatly; moreover, the wine body is clear and transparent, has excellent sesame flavor, and is mellow, sweet and harmonious; the after-run is clean and has a particular sesame flavor.

The invention discloses a cleaning robot suitable for attachments on damaged underwater surfaces of a tunnel and a method of using the robot, comprising a chassis, a motion module, a vision module, a cleaning tool module and a control communication module. The cleaning tool module is located at the front end of the top of the chassis and includes Tool mounting frame and mechanical arm. The tool mounting frame is provided with hexagonal grooves, and each groove is provided with a controllable electromagnet, which can accommodate at least a high-pressure water gun and a rotating steel brush; the mechanical arm is installed on the top of the chassis through the base At the front end, the mechanical arm is integrated with electric drive joints, and is covered with a waterproof sealing film layer. The end of the mechanical arm is provided with a gripper and a six-dimensional force sensor. The proposed underwater operation robot is used as a carrier, using a high-pressure water gun and a rotating steel brush. A cleaning tool, aiming at underwater wall defects, proposes a construction method of cleaning area and cleaning trajectory, which can ensure full coverage and cleaning of wall defect positions, safe and efficient, good cleaning effect, and high degree of automation, which is conducive to subsequent repair operations.

The invention discloses a seal structure of a piston type spring brake chamber in order to overcome the defects of the existing automobile piston type spring brake chamber, such as poor seal and dustproof effects, complicated processing and assembly for multiple independent seal rings and high cost. An integral composite seal ring is provided aiming at overcoming the defects in the prior art. The seal structure comprises a cylinder body and a midbody which form a spring cavity, wherein a spring and a spring base are arranged in the spring cavity, a piston is pressed against by the spring base, the piston is in movable fit with the middle part of the midbody, a wide stepped seal groove is arranged at the part of the piston, fitted with the midbody, a raised shoulder protruding inward is arranged at the middle part of the seal groove, a seal ring matched with the seal groove is embedded in the seal groove, and the seal ring is formed by connecting a lip seal structure at a front end, a lip seal structure at a rear end and a stepped structure in a middle section into a whole. The seal structure has the advantages of combination of advantages of different types of seal devices, simplification in structure and technology, convenience in processing and assembly, improvement in efficiency and reduction in cost.

The invention belongs to the technical field of nylon materials, and relates to a high-strength low-warpage nylon 66 composite material and a preparation method thereof. The material comprises the following components by weight: 50-70 parts of nylon 66, 20-30 parts of a talcum powder and micro-nano cellulose mixture, 0.5-1 part of a compatilizer, 5-15 parts of a flame retardant, and 0.5-1 part ofan antioxidant. According to the invention, the talcum powder and micro-nano cellulose mixture is added into nylon 66, so that the strength and rigidity of the composite material are effectively improved, a low-warpage effect is achieved, and the composite material has good processability.

The invention relates to the technical fields of Ethernet communication technologies and infrared communication technologies, in particular to an infrared transponder for realization of Ethernet and local control infrared equipment and a method of the infrared transponder. The method is characterized in that: when an infrared signal enters, an infrared receiving module (1) completes an infrared receiving function and sends signal information to a main control central processing unit (CPU) (2); and the main control CPU (2) decodes the infrared signal according to the information sent by the infrared receiving module (1), captures a carrier frequency of the infrared signal, generates infrared data and a unique number of the infrared data, encrypts the information and sends the information to the Ethernet through a network controller (3). Compared with the prior art, the invention has the advantages that: the cost is greatly reduced, and the demand of people for more, faster and complete information is met to a greater extent; during integration of a digital technology, the digital technology and a simulation technology are combined, so an advantage complementary among the simulation technology, the digital technology and an internet technology is realized.

The invention discloses a protein composite crystal culture box for in-situ X-ray diffraction and aims to solve the technical problem of possible crystal damages caused by taking out protein crystals from a crystallization chamber to implement X-ray diffraction in the technical field of biology so as to provide effective means for research of protein molecular structures and functions and further intelligent drug development. The composite crystal culture box comprises a plurality of composite crystallization chambers and / or vapor-phase crystallization chambers in array and a magnetic material, the two types of the crystallization chambers are internally provided with porous materials for adsorbing and fixing precipitation liquid or equilibrium liquid, thin gel layers for adsorbing and fixing protein fluid and protein crystals and retaining plates for isolating the protein fluid from the precipitation liquid or equilibrium liquid, the retaining plates are provided with notches or gaps to enable direct contact of the protein fluid with the precipitation liquid or contact by virtue of a vapor phase, and after contact, supersaturation of the protein fluid is realized, and the protein crystals are separated out. In use of the protein composite crystal culture box, taking out the crystals is avoided, and the crystal culture box can be directly and laterally erected on an X-ray diffraction instrument.

The present invention is a herbicide composition containing atrazine, which includes an active ingredient; the active ingredient includes an active ingredient A and an active ingredient B, the active ingredient A is atrazine (Atrazine); the active ingredient B It is a compound with the structure of formula I and a pharmaceutically acceptable salt thereof; wherein, the mass ratio of active ingredient A to active ingredient B is 10:1-80. The herbicidal effect experiment proves that when atrazine and the compound of formula 1 are combined as the active components of the herbicide for weed control, the two herbicide active components produce a synergistic gain effect. The herbicide composition can be used to control weeds such as barnyardgrass, crabgrass, quinoa, and amaranth in sorghum fields, but it is very safe to sorghum; it can reduce the amount of atrazine, reduce the residue in the soil, and at the same time inhibit the production of atrazine The resistant crabgrass also has excellent control effect.

The invention provides a method for preparing homogenesis composite film by spiral fiber in coconut fiber and its application. The method for preparing homogenesis composite film by spiral fiber in coconut fiber is characterized by comprising the following steps: completely immerse the coconut fiber in 0.2-5 g / LNaOH solution at 60-98 DEG C for 10-60 minutes according to the bath ratio of 1: 30-1: 50; after stirring and synchronous ultrasound vibration for 0.2-2 hours, filter and obtain a unicellular fiber wet screen; perform extrusion, fluid exhaustion and multi-grade traction process on the obtained unicellular fiber wet screen through 2-4 grade traction zones consisting of 3-5 pairs of rollers; clean the obtained submicron spiral fiber pulp circularly and perform the natural disordering wet formation for 1-3 times; and then directly soak clean pulp or dried clean pulp to cellulose original liquid with weight concentration of 2%-50%; separate out and solidify submicron spiral fiber pulp and cellulose by buffer liquid; obtain the homogenesis composite film. The homogenesis composite film can be used as the biomedical flexible cellulose composite material, or ecological, functional and comfortable elastic film material.

The invention discloses an intelligent module and third-party product butt joint method. An external interface unit, an interface conversion unit and a reservation unit are included. The external interface unit comprises a UART (Universal Asynchronous Receiver / Transmitter), an SPI (Serial Peripheral Interface) and an I2C (Inter-Integrated Circuit) interface, and a power supply can be externally connected or directly led from a third-party product; the interface conversion unit is correspondingly connected with the UART interface, the SPI interface and the I2C interface; the protocol converter comprises an input interface and an output interface which are used for being in butt joint with a third-party product, an MCU which is used for analyzing the protocol communication content of the input interface and outputting a communication protocol which is in butt joint with a relative manufacturer through the output interface, and a power supply circuit which provides a power supply for the MCU to work and is power supply conversion. The reservation unit is used for implanting a third-party product, and meanwhile an interface for butt joint needs to be reserved in the part. Through the intermediate module method provided by the invention, the advantage complementation among the third-party products is solved, a butt-joint friendly bridge is provided for development, the operation is simple and quick, and the interaction is more humanized.

The invention discloses a cleaning robot suitable for attachments on an underwater damaged surface of a tunnel and a using method.The cleaning robot comprises a chassis, a movement module, a vision module, a cleaning tool module and a control communication module, the cleaning tool module is located at the front end of the top of the chassis and comprises a tool mounting frame and a mechanical arm, and a hexagonal groove is formed in the tool mounting frame; a controllable electromagnet is arranged in each groove and at least can accommodate the high-pressure water gun and the rotary steel brush; the mechanical arm is installed at the front end of the top of the chassis through a base, the mechanical arm is in electric drive joint integration and is wrapped with a waterproof sealing film layer, and a clamping jaw and a six-dimensional force sensor are arranged at the tail end of the mechanical arm. The underwater operation robot serves as a carrier, two cleaning tools including a high-pressure water gun and a rotating steel brush are used, a construction method of a cleaning area and a cleaning track is provided for underwater wall surface defects, full-coverage cleaning of the wall surface defect positions can be guaranteed, and the underwater wall surface defect cleaning device is safe, efficient, good in cleaning effect, high in automation degree and beneficial to subsequent repairing operation.

The invention discloses a focal region regulation and control method of a semispherical phased array ultrasonic energy transducer based on 256 array elements. The focal region regulation and control method of the semispherical phased array ultrasonic energy transducer based on 256 array elements includes the following steps: S1, randomly designing the center coordinate position of the first arrayelement; S2, when the center distance between neighboring array elements is no less than 18mm, selecting the nearest array element as the center coordinate position of the next array element, and according to the above steps, successively designing other array elements until the number of the array elements is 256; S3, exciting all the 256 array elements to realize transcranial focusing, performing value simulation on the temperature fields which are formed in the x, y and z directions of the three dimensional space, and determining the safe regulable and controllable range of the energy transducer; and S4, selecting part of the array elements of the energy transducer to excite to enlarge the safe regulable and controllable range of the energy transducer. The focal region regulation and control method of the semispherical phased array ultrasonic energy transducer based on 256 array elements can avoid occurrence of skull scald during the treating process of transcranial neurological disease, can realize focusing of small-opening non semispherical energy transducer in the large opening semispherical energy transducer, can enlarge the focal region regulation and control range, and canimprove the transcranial focusing performance of the energy transducer.

The invention discloses a protein composite crystal culture box for in-situ X-ray diffraction and aims to solve the technical problem of possible crystal damages caused by taking out protein crystals from a crystallization chamber to implement X-ray diffraction in the technical field of biology so as to provide effective means for research of protein molecular structures and functions and further intelligent drug development. The composite crystal culture box comprises a plurality of composite crystallization chambers and / or vapor-phase crystallization chambers in array and a magnetic material, the two types of the crystallization chambers are internally provided with porous materials for adsorbing and fixing precipitation liquid or equilibrium liquid, thin gel layers for adsorbing and fixing protein fluid and protein crystals and retaining plates for isolating the protein fluid from the precipitation liquid or equilibrium liquid, the retaining plates are provided with notches or gaps to enable direct contact of the protein fluid with the precipitation liquid or contact by virtue of a vapor phase, and after contact, supersaturation of the protein fluid is realized, and the protein crystals are separated out. In use of the protein composite crystal culture box, taking out the crystals is avoided, and the crystal culture box can be directly and laterally erected on an X-ray diffraction instrument.

The invention provides a contrast agent for abdominal imageology examination. The contrast agent is a mixed solution which is composed of poloxamer P188 and poloxamer P407; and as an imaging contrastagent for stomach, intestinal tract, uterus and vagina and a matrix of the imaging contrast agent, the contrast agent is mixed with an imaging tracer agent and is used as the contrast agent for magnetic resonance imaging, positron emission computed tomography imaging, single photon emission computed tomography, computed tomography, combined imaging of positron emission computed tomography imagingand computed tomography and X-ray radiological imaging. The contrast agent for abdominal imageology examination disclosed by the invention has the characteristics that the contrast agent is simple andquick to use, the safety is high, the volume of the contrast agent keeps invariant, the adhesiveness is good, and natural filling and continuous filling of gastrointestinal tract can be realized.

The invention relates to an atrazine-containing herbicide composition. The herbicide composition comprises an active component, the active components comprise an active component A and an active component B, the active component A is atrazine, the active ingredient B is a compound with a structure as shown in a formula I and pharmaceutically acceptable salt thereof, and the mass ratio of the active component A to the active component B is 10: 1-80. Weeding effect experiments prove that when atrazine and the compound shown in the formula 1 are combined to serve as active components of herbicides for weeding, a synergistic gain effect is generated between the two herbicide active components. The herbicide composition can be used for preventing and removing barnyard grass, crab grass, quinoa,edible amaranth and other weeds in sorghum fields, but is very safe to sorghum, the use amount of atrazine can be reduced, residues in soil are reduced, and meanwhile, an excellent control effect ondigitaria sanguinalis which generates resistance to atrazine is achieved.