足球比分007

Spraying equipment; dyes; coatings; polishing agents; natural resins; manufacturing and application of adhesive devices, application technology
  • The invention relates to a liquid crystal medium (lc medium), which is used for electro-optical purposes, in particular for electro-optical displays with active matrix addressing based on the ecb effect, and for ips (in-plane switching) displays or ffs (Frequency Field Switching) displays also relate to displays containing the media. In 1971, the principle of electric field controlled birefringence, the ecb effect or the dap (arranged phase deformation) effect, was first proposed (m ...
  • The invention belongs to the field of liquid crystal materials, and particularly relates to a wide temperature region blue phase liquid crystal material and a preparation method thereof. Blue-phase liquid crystal (bp) is a double-helix three-dimensional superstructured material, which usually exists in a chiral system. The liquid crystal molecules are self-assembled to form a double twisted cylinder with a double helix structure under the action of the twisting force provided by the chiral agent. According to the arrangement of the double twisted cylinders, the blue phase can be roughly divided into three sub-phase states, which are body-centered cubic arrangements ...
  • The invention belongs to a liquid crystal material, and relates to a high-performance liquid crystal compound and a preparation method and application thereof. In recent years, liquid crystal display devices have been developed more and more rapidly, and different types have also been developed, such as small liquid crystal display devices for vehicles, portable liquid crystal display devices, ultra-thin liquid crystal display devices, and so on. Development in the field is making progress. Take the TV as an example, which is characterized by light weight, small space, convenient movement, and notebook personal computer, hand ...
  • The invention belongs to soil improvement, and particularly relates to a soil-alkali soil improver and a preparation method thereof. Saline-alkali land is a common name for saline soil. It includes various types of saline soil, salinized soil, alkaline soil and alkaline soil. It means that the soil surface layer contains a large amount of soluble salts such as sodium chloride and sodium carbonate. Promote the closure of plant stomata, and increase the osmotic pressure of soil solution, hinder the growth of plants, cause plant physiological drought, and cause plants ...
  • The invention relates to soil remediation, in particular to a mixed preparation for remediation of petroleum-contaminated soil. Petroleum is a mixture of hydrocarbons and other trace organic compounds. After entering the soil, most of the hardly volatile pollutants will remain in the soil, blocking the pores between soil particles and reducing the water content of the soil. Change the nutritional structure of the soil, causing the growth of crops and some plants in the soil to be contaminated by oil ...
  • The invention belongs to the field of contaminated soil repair, in particular to a compound eluent for repairing heavy metal contaminated soil and its application. At present, the process of urbanization in China is continuously accelerating, and the land for urban development is facing a severe test. How to make better use of urban land has become an issue that the local government must consider. In the process of land reuse, soil pollution has become an important issue that must be resolved. Due to the limitation of early production technology level and irregular pollution ...
  • The present invention relates to an etching composition for a silicon nitride film, and more particularly, to the ability to etch nitrogen at a higher selectivity than a silicon oxide film by including two different silicon-based compounds in the etching composition. An etching composition for a silicon nitride film of a silicon film, an etching method of a silicon nitride film using the etching composition, a method of suppressing abnormal growth of a silicon oxide film, and a method of manufacturing a semiconductor device. Silicon oxide film (sio2) and silicon nitride film ...
  • Application of near-infrared luminescent material in coding
    The invention belongs to the field of materials and relates to the application of a near-infrared luminescent material in coding. Coding is a means of encrypting information. Optical coding has a series of advantages such as fast recognition speed, simple production, and large information capacity. Optical coding includes spatial coding, time coding, and frequency coding. It has been used for confidential communication. Information encryption, anti-counterfeiting of articles, biomarkers and imaging, such as one-dimensional barcodes and two-dimensional codes that have been commercialized. Near red ...
  • High-efficiency and high thermal stability blue up-conversion luminescent material and preparation method and process thereof
    The invention belongs to an inorganic luminescent material, and particularly relates to a blue upconversion luminescent material with high efficiency and high thermal stability and a preparation method thereof. Rare earth ion-doped up-conversion luminescent materials can convert near-infrared light that is invisible to the human eye into visible light. It has the advantages of large Stokes shift and no interference from background light. Biological imaging, biological detection, drug carriers and new cancer photodynamic therapy ...
  • LYSO scintillator, preparation method thereof, and device and process using same
    The invention relates to a material and a device for detecting ionizing radiation. In various cases, it is used for detecting scintillator crystals for gamma-rays and x-rays, and particularly relates to a lyso scintillator Its preparation method and device using it. There are a variety of techniques that can be used to detect ionizing radiation. Scintillator crystals have received widespread attention for their simplicity and accuracy. Therefore, scintillator crystals are widely ...
  • Bismuth orthosilicate nano luminescent material with egg yolk-egg shell structure and preparation method and process
    The present disclosure belongs to a nano-luminescent material, and particularly relates to a bismuth orthosilicate up-conversion luminescent nano-material having an egg yolk-shell structure, a preparation method and application of the material. The disclosure of the information in this section is only for the purpose of increasing the understanding of the general background of the disclosure and is not necessarily to be taken as an acknowledgement or any form of suggestion that the information constitutes prior art that is already known to those of ordinary skill in the art. ...
  • Manufacturing method of quantum dot film and quantum dot light emitting diode
    The invention relates to the field of quantum dot light emitting devices, in particular to a quantum dot thin film and a quantum dot light emitting diode. Quantum dots are a special material that is limited to the order of nanometers in three dimensions. This remarkable quantum confinement effect makes quantum dots have many unique nanometer properties: the emission wavelength is continuously adjustable, the light emission wavelength is narrow, Wide absorption spectrum, high luminous intensity, long fluorescence lifetime, and good biocompatibility. These characteristics make quantum ...
  • Method and process for preparing efficient fluorescent zero-dimensional perovskite by reaction in aqueous solution
    The invention relates to a method for preparing a highly efficient fluorescent zero-dimensional perovskite by using a reaction in an aqueous solution, which belongs to photovoltaic materials and devices. Semiconductor materials can achieve efficient fluorescence yields through quantum confinement effects, making them promising applications in the fields of fluorescence and display. One way to achieve the quantum confinement effect is to reduce the particle size below the Bohr radius, such as quantum dots and nanocrystals. Due to the quantum confinement effect, perovskite ...
  • Preparation method of cesium lead halide perovskite quantum dot and application and process thereof
    The invention relates to the field of quantum dot nano-luminescent materials, in particular to a method for preparing a cesium lead halide perovskite quantum dot and application thereof. A quantum dot is a nanoparticle composed of a small number of atoms whose electron movement is restricted in all directions. The most significant feature of quantum dots is that they have quantum confined effects, and their band gaps will change significantly with changes in size. In addition, quantum dots also have characteristics such as size effect, surface effect, tunneling effect, which makes them ...
  • Double-peak emitting carbon quantum dot and preparation method, application and process thereof
    The invention belongs to a fluorescent material, and particularly relates to a bimodal emission carbon quantum dot and a preparation method and application thereof. Carbon quantum dots, as emerging "zero-dimensional" carbon nanomaterials, are considered to be new stars in the field of luminescent materials. Carbon quantum dots have excellent water solubility, chemical inertness, low toxicity, easy functionalization, photobleaching resistance, and controllable optical properties, making them suitable for analytical detection, photocatalysis, light-emitting diodes, in vivo imaging, and cell labeling. ...
  • Preparation and application of rush grass charcoal quantum dots (nanoparticles / nanoparticles)
    The invention belongs to medicine, and particularly relates to the preparation of rush rush quantum dots and its application in the field of medicine. SUMMARY OF THE INVENTION The present invention firstly extracts and separates quantum dots (nanoparticles / nanoparticles) from rushes, and for the first time discovers that rushes charcoal quantum dots have strong hemostatic effects, anti-inflammatory and other biological effects. Technical solution: The present invention provides a method for extracting and separating carbon quantum dots from rushes. The invention also provides the biological activity of rush grass charcoal quantum dots and ...
  • Preparation and application of rhubarb carbon quantum dots (nanoparticles / nanoparticles)
    The invention belongs to medicine, and particularly relates to the preparation of rhubarb carbon quantum dots and its application in the field of medicine. Rhubarb charcoal is a carbide made from Chinese medicine rhubarb. As early as recorded in "The Book of Ten Medicine Gods" there are "attributes: treatment of rickets, vomiting, vomiting, hemoptysis, coughing blood, stop using this medicine first. Thistle, small thistle, lotus leaf, cedar leaf, grass root, madder root, rhubarb, peony and peony skin palm Peel (divided into equal parts) ", rhubarb charcoal is often used as a hemostatic agent, and it also has effects such as activating blood, stopping diarrhea, and catharsis ...
  • Preparation of malt carbon carbon quantum dots (nanoparticles / nanoparticles) and application thereof
    The invention belongs to medicine, and particularly relates to preparation of malt carbon quantum dots and application in the field of medicine. Malt char is the product of raw malt after high temperature carbonization. Malt has a long history of clinical application in traditional Chinese medicine, but its charred and charcoal are mostly concentrated after the Ming and Qing Dynasties. "Medical Reality Easy · Volume III" records: "Symptoms of diarrhea, such as food accumulation, add malt, hawthorn fried "Jiao Shude said in the" Ten Lectures on the Use of Medicine "that malt" is used for charring, digestion ...
  • Oxysulfide elastic stress luminescent material and preparation method and process thereof
    The invention belongs to the field of inorganic light-emitting materials, and particularly relates to an oxysulfide elastic stress light-emitting material and a preparation method thereof. Stress luminescence (mechanoluminescence, ml for short) materials refer to solid materials that produce light under the action of various mechanical forces (such as extrusion, friction, impact, stretching, twisting). According to the degree of deformation of the material and whether it can be recovered, stress light emitting materials are divided into destructive fracture stress light emitting and ...
  • Application of 4-methylpyridine tetrazolium tetranuclear copper [I] complex in stimulus-responsive luminescent color-change material
    The invention relates to the application of a 4-methylpyridine tetrazolium tetranuclear copper [i] complex in a stimulus-responsive luminescent color-change material, which belongs to the synthesis of a stimulus-responsive luminescent color-change material. At present, due to the effects of strong spin orbit coupling and heavy atom effects, metal light-emitting complexes can theoretically utilize all singlet and triplet energy to enhance the quantum efficiency of light emission. At present, the research of metal luminescent complexes is mainly focused on the fifth and sixth cycles ...
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Technical classification