6results about How to "Concentration adjustable" patented technology

The invention relates to the field of solar cells, in particular to a preparation method of an electron transport layer and a perovskite solar cell, and the preparation method of the electron transport layer comprises the following steps: uniformly mixing stannous chloride dehydrate, an organic ligand / heterogeneous growth connecting agent and a hydrolysis rate control agent in deionized water to obtain a stannic oxide precursor solution; and taking conductive glass as a substrate to be soaked in the tin dioxide precursor solution, performing in-situ growth in a closed environment with the temperature lower than the water evaporation temperature, and then performing ultrasonic cleaning and annealing to obtain the electron transport layer. According to the in-situ chemical growth regulation and control strategy provided by the invention, the bulk phase self-doping defect control of the tin dioxide n-type thin film, the controllable regulation of the energy band and the optimization of the conductivity and the carrier extraction behavior are realized, and the strategy can be used for preparing a series of tin dioxide electron transport layers to adapt to a preparation scheme and application of a perovskite active layer with any component. And the minimization of energy loss and the optimization of interface non-radiative recombination and carrier transport behavior are realized.

The invention discloses an impedance gradient wave-absorbing material and a preparation method thereof, and belongs to the field of electromagnetic wave-absorbing materials. The impedance gradient wave-absorbing material is prepared by using a thermoplastic wave-absorbing material and adopting a 3D printing technology, on the basis of an existing structural wave-absorbing material, the material concentration gradient is increased, the impedance matching characteristic is improved, and the wave-absorbing performance is further improved; the concentration-adjustable thermoplastic wave-absorbing material is prepared by regulating and controlling the 3D printing preparation process, and impedance gradual change of the structure is achieved; the technology is simple in process, convenient to operate and high in safety, preparation can be simply and rapidly completed after parameters are determined, the reflection loss of the prepared impedance gradient wave-absorbing material in a 4-8 GHz electromagnetic wave frequency band reaches-10 dB, and the reflection loss in a 8-18 GHz electromagnetic wave frequency band reaches-15 dB.

The present invention relates to humanized antibodies having good binding ability to digoxigenin and uses thereof. When an antibody or antigen-binding fragment thereof specifically recognizing digoxigenin according to one aspect of the present invention is used, the concentration of the drug in the body is adjusted as needed through a complex (DOligobody) containing the same, or the concentration of the drug in vivo It is expected that the half-life can be increased.

This invention discloses a slow-release granule formulation of sodium alginate-biochar loaded with thiamethoxam, its preparation method, and its application. The slow-release granule uses biochar as the adsorbent carrier to adsorb thiamethoxam and sodium alginate as the encapsulating material, which is then cross-linked and solidified by dripping calcium chloride solution. The mass ratio of biochar to thiamethoxam is (10~30):1, the mass-to-volume ratio of sodium alginate to water is 1.5~2.0 g:100 mL, and the concentration of the calcium chloride solution is 1.5%~3.0%. The prepared slow-release granule has a cumulative release time of over 90 hours in distilled water, with no obvious burst release phenomenon. Pot experiments show that it maintains a continuous control effect on eggplant thrips for 7 days after application, which is superior to conventional spraying treatment. This invention has a simple preparation process, is environmentally friendly, and has excellent slow-release performance, making it suitable for green control of agricultural pests.

The application relates to the technical field of fertilizing equipment, and discloses a forestry seedling raising fertilizing equipment which comprises a water inlet pipe and a water outlet pipe, a shell is arranged on one side of the water inlet pipe, a connecting block is arranged in the shell, two cavities are respectively formed in the connecting block, one end of the water inlet pipe penetrates through the shell and is communicated with one of the cavities, corrugated pipes are fixedly connected to the side walls of the shell, and through holes communicated with the two corrugated pipes are formed in the cavity inner walls. The application does not operate by water pressure driving the piston, and the wear of the piston does not need to be considered during operation, so that when the device is used, the problem of regular maintenance caused by the wear of the non-wear-resistant parts does not occur, the device is not afraid of containing small impurities in water when being used, so that a filter does not need to be arranged in front of the device, the cost can be reduced, the trouble of regularly cleaning the filter is saved, and the practicability of the device is enhanced.

The invention discloses a residual ammonia water self-circulation ammonia distillation system and a process method thereof, and belongs to the technical field of ammonia water treatment. The residual ammonia water self-circulation ammonia distillation system comprises an ammonia water supply system, a deacidification system, an ammonia distillation circulation system and an ammonia water generation system which are communicated in sequence, the ammonia distillation circulation system is communicated with the ammonia water supply system, and the ammonia water generation system is communicated with the deacidification system. According to the technical scheme, the system is utilized, the technological method of residual ammonia water self-circulation ammonia distillation is achieved, the energy-saving efficiency is improved, the production cost is reduced, and recycling of ammonia is achieved.