Lithium-selenium (Li-Se) batteries is considered as a promising energy storage material due to high electronic conductivity and volume capacity. However, the performance of Li-Se batteries is far away from commercial...

An ew and simple methodt of abricate magnetic Fe 4 N/Fe 3 Cs amples is reported.M eanwhile, pure phase iron carbides (q-Fe 3 Ca nd c-Fe 5 C 2 )w ere obtained by controlling experimental conditions.T he structures, magnetic properties, and morphology of the samples were investigated according to the generalized analysiso fX -ray diffraction,X -ray photoelectrons pectroscopy,a sw ell as transmission electron microscopy and vibrating sample magnetometry.T he magnetic properties measurement revealed the remarkable magnetic properties of the samples at 2a nd 300 K. The application of the prepared samples as catalysts for oxygen evolution reactionw as also investigated in alkaline solution.T his simple and convenient route provides an ew path to fabricate other metal nitrides and carbides.

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Deep learning requires a large amount of datasets to train deep neural network models for specific tasks, and thus training of a new model is a very costly task. Research on transfer networks used to reduce training costs will be the next turning point in deep learning research. The use of source task models to help reduce the training costs of the target task models, especially heterogeneous systems, is a problem we are studying. In order to quickly obtain an excellent target task model driven by the source task model, we propose a novel transfer learning approach. The model linearly transforms the feature mapping of the target domain and increases the weight value for feature matching to realize the knowledge transfer between heterogeneous networks and add a domain discriminator based on the principle of generative adversarial to speed up feature mapping and learning. Most importantly, this paper proposes a new objective function optimization scheme to complete the model training. It successfully combines the generative adversarial network with the weight feature matching method to ensure that the target model learns the most beneficial features from the source domain for its task. Compared with the previous transfer algorithm, our training results are excellent under the same benchmark for image recognition tasks.