Abstract: A propane dehydrogenation and ammonia synthesis coupling system and process. By means of coupling a propane dehydrogenation reaction byproduct, i.e., hydrogen, and high-purity hydrogen required in an ammonia synthesis reaction as a raw material, liquid ammonia can be co-produced as well as a high-quality propylene product being produced. A hydrogen-containing tail gas, which is separated from the propane dehydrogenation reaction, only needs to undergo a simple pressure swing adsorption process to obtain high-purity hydrogen, such that the operation process becomes simple, and the energy utilization efficiency is improved.

Abstract: A propane dehydrogenation and ammonia synthesis coupling system and process. By means of coupling a propane dehydrogenation reaction byproduct, i.e., hydrogen, and high-purity hydrogen required in an ammonia synthesis reaction as a raw material, liquid ammonia can be co-produced as well as a high-quality propylene product being produced. A hydrogen-containing tail gas, which is separated from the propane dehydrogenation reaction, only needs to undergo a simple pressure swing adsorption process to obtain high-purity hydrogen, such that the operation process becomes simple, and the energy utilization efficiency is improved.

Abstract: In accordance with some embodiments of the present disclosure, an apparatus for adaptive learning is provided. The apparatus may include a memory and a processing device. The processing device is configured to receive a user input providing a portion of an annotation to be associated with a practice problem and a user; identify one or more knowledge components relating to the user input; and autocomplete the annotation to include information of one or more of the knowledge components. The information of the one or more of the knowledge components may include at least one of a definition of a first knowledge component of the knowledge components relating to the first user input or an equation relating to the first knowledge component. In some embodiments, the knowledge components relating to the user input are identified by processing the user input using a trained machine learning model configured to recognize knowledge components.

Abstract: Embodiments of the present disclosure relate to multimedia processing method, apparatus, device and medium, wherein the method includes: presenting a first multimedia interface comprising first content; receiving an interface switching request of a user in the first multimedia interface; and switching from the first multimedia interface currently presented to a second multimedia interface, and presenting second content in the second multimedia interface, wherein the first content comprises the second content and other content associated with the second content, and the second content comprises a target audio and a target subtitle corresponding to the target audio.

Abstract: The invention provides the chromosome location of an autosomal dominant gene associated with high bone mass. As a result of this localization, the presence of a polymorphism linked to the autosomal dominant gene in a subject can be detected by analyzing human chromosome 11 of the subject for the presence of the polymorphism located about 30 cM around D11S987 and linked to the autosomal dominant gene. The analysis of chromosome 11 can be accomplished by amplifying the polymorphism, separating the amplified polymorphism to generate a polymorphism pattern, and correlating the presence or absence of the polymorphism with the respective presence or absence of the autosomal dominant gene associated with high bone mass.