5results about How to "Increase application path" patented technology

The invention discloses a method for producing hydrogen and co-producing alpha-semi-hydrated gypsum from waste gypsum, and belongs to the field of high value-added resource utilization of typical bulk solid waste. The method comprises the following steps: 1) adding water into waste gypsum, stirring and pulping to obtain slurry; 2) continuously producing hydrogen from the slurry through an electrochemical hydrogen production process to obtain hydrogen, and collecting the slurry after hydrogen production is finished; 3) removing impurities from the slurry through a solid-liquid separation process to obtain liquid; and 4) crystallizing the liquid in a crystal transformation directional regulation process, and drying at high temperature after crystallization to obtain the alpha-semi-hydrated gypsum. The method for producing hydrogen and co-producing alpha-semi-hydrated gypsum from waste gypsum is simple in process and low in raw material cost, high-added-value resource utilization of waste gypsum can be achieved, the purity of produced hydrogen is larger than 60%, the purity of co-produced alpha-semi-hydrated gypsum is larger than 98%, the whiteness is larger than 95, and the utilization efficiency of waste gypsum is larger than 80%; the method can effectively solve the problems of high difficulty, high cost, low added value and the like of the existing waste gypsum treatment technology.

The application provides an inorganic scintillation crystal performance test system and method based on an adjustable pinhole collimator, and solves the problem that existing inorganic scintillation crystal performance test systems are mostly limited to the research of specific crystals and radioactive sources and are not universal in radiation detection macroscopic applications. The system comprises a base, a radioactive source, a radioactive source limiting unit, a collimation assembly, a collimation adjusting unit, a detector position adjusting unit and a rear-end test unit. Through the use of the system core structure, the collimation assembly composed of multiple pinhole collimators, the radioactive source radiation is accurately injected into the scintillation crystal at a certain angle, reducing the interference caused by scattering and environmental background, and combining standard scintillation crystals and standard radioactive sources of the same kind, the activity and energy consistency of the radioactive source is calibrated with high precision and sensitivity, and then flexible matching of various types of radioactive sources is realized, and the objective conditions of the numerous radiation isotopes in the application environment are restored as much as possible.

The invention discloses a preparation method of phaseolus calcaratus polypeptide, a compound beverage of the phaseolus calcaratus polypeptide and application of the phaseolus calcaratus polypeptide, and aims to solve the technical problems that high-value utilization of phaseolus calcaratus is difficult to realize at present, the phaseolus calcaratus polypeptide is single in purpose, and functional effects of Alkaline protease is used for preparing the phaseolus calcaratus polypeptide, the enzymolysis conditions are optimized, and the polypeptide content can reach 133.89 mg / g. Meanwhile, the formula of the compound beverage containing the phaseolus calcaratus polypeptide is optimized, so that the compound beverage has relatively good antioxidant activity on the premise that the taste is proper. The requirement of people for high-speed growth of functional food can be met, the health level of people is improved, deep processing of low-added-value agricultural products is facilitated, then the agricultural structure is improved, and the income of farmers is increased.

This invention discloses a method for fabricating a quantum dot photodetector with a defect state density gradient distribution, belonging to the field of optoelectronic device technology. This invention introduces nitrogen vacancies and low-valence Ti defects within the quantum dot, utilizing the sub-bandgap energy levels formed by these defects to achieve near-infrared light absorption. A gradient defect distribution is set along the thickness direction of the light-absorbing layer, forming a gradient energy band and a built-in auxiliary electric field, promoting the separation of photogenerated carriers. The high electron concentration quantum dot layer near the electron transport layer can selectively extract electrons and block hole backflow. This invention eliminates the use of toxic lead-based quantum dot materials, resulting in a green and environmentally friendly device that combines excellent infrared response and carrier collection efficiency. The fabrication process is simple and low-cost, facilitating large-scale fabrication and making it suitable for near-infrared photodetector-related fields.

The present invention relates to an environmentally friendly conductive cement-based material curing agent and a preparation method and application thereof. The present invention uses cement, modified lithium slag powder, and regenerated micropowder as the main components of the cement curing agent, and uses carbon fiber as an additive to form a cement-based material curing agent together with cement, modified lithium slag powder, and regenerated micropowder. The addition of modified lithium slag powder can make the solidified soil have a certain conductivity, and the addition of carbon fiber can effectively improve the conductivity of the solidified soil, and can enhance the anti-cracking performance of the solidified soil, thereby improving the strength and stability of the solidified soil. In addition, the regenerated micropowder contains a high content of calcium oxide, which can serve as an external calcium source to supplement the modified lithium slag powder, and then under the action of alkali excitation, the strength can be quickly and effectively improved. The present invention uses industrial waste as the main raw material to prepare a cement-based material curing agent, realizes the replacement of cement materials, reduces the amount of cement materials in the cement-based curing agent, and alleviates the problems of high energy consumption and high pollution.