7results about How to "Responsiveness" patented technology

The invention discloses a coordinated control method and system for a thermal power generating unit with an energy storage device under a deep peak regulation working condition, and the method comprises the steps: determining a rotating speed unequal rate formula of the thermal power generating unit, and obtaining a primary frequency modulation demand delta P of the thermal power generating unit based on the rotating speed unequal rate formula; determining a current power coefficient k2 of the energy storage device; and determining a primary frequency modulation control strategy and a load adjustment control strategy of the thermal power generating unit based on the primary frequency modulation demand quantity delta P of the thermal power generating unit, the current power coefficient k2 of the energy storage device, the rated output power Pf0 of the energy storage device, the adjustment quantity delta Pf of the energy storage device and the adjustment quantity delta PL of the thermal power generating unit. According to the fire and energy storage combined control method and system with the energy storage device, the dynamic response capability of the thermal power generating unit under the deep peak regulation working condition can be effectively achieved.

This invention relates to a hypoxia-responsive T2-T1 switchable MRI contrast agent, its preparation method, and its application. The hypoxia-responsive T2-T1 switchable MRI contrast agent comprises iron oxide nanoclusters and polyethylene glycolamine and / or ethanolamine modified on the iron oxide nanoclusters. The iron oxide nanoclusters are obtained by cross-linking iron oxide nanoparticles via hypoxia-sensitive azo bonds. The MRI contrast agent of this invention can specifically respond to the hypoxia environment of the tumor microenvironment, thereby achieving a change from aggregation to dispersion of extremely small iron oxide nanoclusters, thus enabling the switching from T2-type to T1-type contrast signals. Furthermore, after dissociation in response to the hypoxia environment, the re-formed extremely small iron oxide nanoparticles are more readily metabolized, increasing biocompatibility.

The utility model discloses a fire-extinguishing open type drooping spray head protection cover for a coating spray booth. The protective cover comprises a protective cover body, the protective cover body comprises a protective cover base and a protective cover main body, the protective cover base is connected to the bottom of the open type drooping spray head in a sleeved mode, the protective cover main body is connected to the protective cover base in a buckled mode, the protective cover main body is in a bowl shape, and the open type drooping spray head is arranged in the protective cover main body. According to the utility model, the problem that the spray head cannot spray water due to the fact that paint mist is attached to and accumulated on an open type drooping spray head in a coating workshop in the prior art is solved.

This invention relates to a hydrogen-bonded organic framework material with thermal exciton properties, its preparation method, and its applications. The material utilizes organic ligands with aggregation-induced emission properties, forming a three-dimensional periodic network through intermolecular hydrogen bond self-assembly. The ordered molecular stacking within the framework effectively activates and enhances the intrinsic luminescence performance of the ligands. Furthermore, by introducing halogen atoms for structural modulation, the excited-state energy levels can be finely tuned, thereby inducing thermal exciton properties and significantly improving the utilization efficiency of triplet excitons. This material possesses rapid luminescence kinetics and holds promise as a high-performance scintillator. Its high triplet state utilization efficiency significantly enhances its light yield, reaching 14474 MeV. ‑1 Furthermore, this material can be incorporated into a polymer matrix to form flexible thin films, exhibiting excellent X-ray imaging capabilities.

The invention relates to a preparation method of a bipolar transistor type silicon-based optical detector with an independent absorption region and a metasurface structure. The detector comprises a top silicon layer (secondary collector region), an n-type silicon layer (collector region), a p-type germanium-silicon layer (base region) and an n-type polycrystalline silicon layer (emitter region) which are arranged on an SOI substrate. And the absorption region is an n-type polycrystalline silicon layer. The method comprises the following steps: epitaxially growing multiple layers of materials on an SOI (Silicon On Insulator) substrate, wherein the multiple layers of materials comprise a Si layer / Si collector region, a SiGe layer / SiGe base region and a polycrystalline silicon layer / polycrystalline Si emitter region; etching the polycrystalline silicon layer and filling SiO2 to form an isolation region; etching to form an emitter region mesa and a collector region mesa, depositing a passivation insulating layer, etching and preparing an electrode contact hole, sputtering and depositing, and manufacturing a metal electrode; and manufacturing a metasurface structure in the polycrystalline silicon layer of the absorption region. According to the device, light detection absorption and photocurrent amplification are separated, structural parameters of an absorption region and the junction area of the bipolar transistor are optimized respectively, high-speed response is achieved, the light absorption efficiency is high, and the absorption detection wavelength is expanded to 1300-1550 nm.

The invention relates to the technical field of biological materials and medical products, in particular to hydrogel capable of forming gel through body fluid driving response, a preparation method and application of the hydrogel. The crosslinking based on the Michael addition reaction of the four-arm polyethylene glycol mercaptan and the four-arm polyethylene glycol maleimide developed by the invention has the characteristic of sensitive body fluid triggering gelling, so that the hydrogel has multiple purposes; the proven applications comprise various applications in contact with body fluid, such as liver hemostasis, subcutaneous injection, intramuscular injection, cornea surface filming, tooth extraction groove repair and the like. Compared with a traditional material, the material has sensitive body fluid response performance and injectability, and has remarkable advantages in application in the scenes of irregular wounds, invisible wounds, irregular tiny wounds and the like.

This invention discloses a class of tumor-targeting prodrug compounds that synergistically enhance photodynamic / chemotherapy through azoreductase activation, their preparation method, and their application in selectively killing cancer cells and treating tumors. The first objective is to provide a class of tumor-targeting prodrug compounds that synergistically enhance photodynamic / chemotherapy through azoreductase activation. These compounds possess the properties of positively charged cyanine dyes, allowing them to target tumor sites and localize to the mitochondria of cancer cells to a certain extent. Through simultaneous activation of azoreductase, photosensitizers and chemotherapeutic drugs are released, achieving selective killing of cancer cells and targeted tumor therapy. The second objective is to provide a method for preparing the prodrug compound. In an anhydrous system, an indole compound containing an R1 group and modified with different substituents at the benzene ring position is reacted with 2-chloro-3-(hydroxymethylene)-1-cyclohexene-1-carboxaldehyde to obtain compound IV. Then, compound IV is reacted with m-nitrophenol and reduced to obtain compound V. Finally, compound V undergoes a diazotization reaction with sodium nitrite, and a compound containing an R2 group is added to continue the reaction to obtain the target prodrug compound.