4results about How to "Reduce ineffective loss" patented technology

This invention discloses an organic electroluminescent device and display device. The organic electroluminescent device includes an anode, a cathode, and at least one light-emitting layer formed between the anode and the cathode. A hole injection layer and a hole transport region are provided between the anode and the light-emitting layer closest to the anode. The hole transport region includes a first hole transport layer and a second hole transport layer with different refractive indices. The first hole transport layer is selected from compounds of Formula 1 or Formula 3, and the second hole transport layer is selected from compounds of Formula 2. This invention's organic electroluminescent device, through improvements in film structure and material matching, ensures both material stability and carrier transport, while simultaneously improving the light field distribution through optimized optical microcavity structure, thus achieving performance enhancement. [Formula 1] [Formula 2] [Formula 3]

This invention relates to the field of heat-resistant alloys and high-temperature alloys, and discloses a high-temperature resistant creep-resistant iron-nickel-chromium-based alloy and its preparation process. The alloy, by weight percentage, comprises Ni 25.0%–28.0%, Cr 18.0%–22.0%, C 0.06%–0.08%, V 0.50%–0.80%, N 0.10%–0.15%, Ce 0.015%–0.025%, B 0.005%–0.010%, Mn 0.3%–0.8%, and Si 0.1%–0.4%, with the balance being Fe and unavoidable trace impurities. The preparation process employs gradient-controlled pressure reverse nitrogen purging, delayed addition of a nickel-cerium master alloy and a micro-carbon boron-iron alloy before tapping, combined with a double-step isothermal carbon consumption treatment. This approach improves the effective utilization rate of nitrogen and rare earth elements, and enhances the high-temperature creep life, fracture elongation, and cross-sectional property consistency of large-section forgings.

This invention belongs to the field of marking tape technology, and particularly relates to a pre-formed hot-pressed marking tape adapted to tire sidewall patterns and convex / concave surfaces. It includes a supporting base layer, one side surface of which is provided with several independently arranged release functional layers. Each release functional layer has a flexible marking unit on its side facing away from the supporting base layer. The flexible marking unit has the ability to adapt to the deformation and adhesion of tire sidewall tread patterns and embossed lettering. This invention, through its self-adapting flexible marking unit design, fundamentally solves the core defect of existing ink transfer and hot stamping processes that can only create markings in blank areas of the tire sidewall. It can perfectly adapt to non-flat areas such as tire sidewall patterns and embossed lettering, eliminating the need to reserve a dedicated blank area for marking. This fully aligns with the current industry trend of personalized tires, narrow-width tires with limited blank areas on the sidewall, and the random marking of moving points, thus fully releasing the design space of the tire sidewall.

The invention provides an energy recovery and conversion method and system for an automobile brake power device, and relates to the technical field of energy recovery and conversion. Vehicle brake state collection is carried out through a sensor network, brake state collection data are obtained, and vehicle brake state analysis and judgment are carried out according to the brake state collection data; performing energy recovery potential analysis according to the vehicle braking state analysis and judgment information to obtain energy recovery potential analysis data, and performing energy recovery state analysis and judgment according to the energy recovery potential analysis data; and performing energy conversion recovery control analysis according to the energy recovery state analysis judgment information to obtain energy conversion recovery control data, and performing control state analysis judgment according to the energy conversion recovery control data to obtain energy conversion recovery control judgment information. Energy recovery efficiency and braking safety are both considered, device loss is reduced, and the service life of equipment is prolonged.