Search

Emotion recognition is crucial for enhancing human-computer interaction. Due to considerable individual differences in emotion manifestation, traditional models do not adapt well to new individuals. Moreover, existing algorithms typically focus on identifying a single emotion, overlooking intrinsic connections among multiple emotions. Therefore, we propose a multi-task adversarial domain adaption (MADA) model for EEG-based emotion recognition. First, domain matching is employed to identify the most similar individual from the dataset as the source domain, alleviating individual differences and reducing training time. Subsequently, multi-task learning is utilized to simultaneously classify multiple emotions, capturing their intrinsic connections. Finally, adversarial domain adaption is applied to learn the individual differences between the source and target domains. Cross-subject experiments on the DEAP dataset indicate that our model achieves accuracies of 78.08%, 68.36%, and 69.64% on the valence, arousal, and dominance, respectively, surpassing state-of-the-art methods. This indicates the effectiveness of our model in recognizing multi-dimensional emotions.

Electroencephalography (EEG) and functional near infrared spectroscopy (fNIRS), both portable and non-invasive, enhance brain-computer interface (BCI) performance by integrating their spatial and temporal benefits when combined together. However, the fusion of these two signals still faces challenges. To fully unitize the complementarity of EEG and fNIRS for improved performance in EEG-fNIRS BCI, we propose an EEG-fNIRS fusion network based on end-to-end mutual information learning, named EFMLNet. In the model, EEG and fNIRS data are fed into their respective feature extractors for the extraction of temporal and spatial information. Furthermore, their complementary information is fused by two parallel mutual learning modules. We conducted classification experiments on a publicly available BCI dataset based on motor imagery (MI) task and achieved a cross-subject classification accuracy of 71.52%. This result surpasses the performance of most existing fusion methods and demonstrates the potential for real-time hybrid BCI systems.

Black phosphorous (BP) is a novel composite material. Its carrier mobility can reach more than 1000 cm2·V−1·s−1 and has a direct bandgap adjustable from 0.3 to 1.5 eV with thickness, so its photovoltaic performance is good. These properties show great potential for applications in many fields, such as energy storage, sensors, biomedicine, and environmental treatment. With the deepening of research, it is found that the instability of BP under natural environmental conditions and the limitations of its preparation limit its development, while combining with other materials can further optimize its performance, which not only improves the mechanical properties of the material but also gives it new functions. Based on this, this paper summarizes the preparation and optical properties of highly stable metals and their compounds/BP-based nanomaterials in recent years, highlights the progress of their application in photocatalytic hydrogen evolution, and gives an outlook on the challenges and opportunities for the future development of BP in photocatalysis. [ABSTRACT FROM AUTHOR]

Microbial metal corrosion has become an important topic in metal research, which is one of the main causes of equipment damage, energy loss, and economic loss. At present, the research on microbial metal corrosion focuses on the characteristics of corrosion products, the environmental conditions affecting corrosion, and the measures and means of corrosion prevention, etc. In contrast, the main microbial taxa involved in metal corrosion, their specific role in the corrosion process, and the electron transfer pathway research are relatively small. This paper summarizes the mechanism of microbial carbon steel corrosion caused by SRB, including the cathodic depolarization theory, acid metabolite corrosion theory, and the biocatalytic cathodic sulfate reduction mechanism. Based on the reversible nature of electron transfer in biofilms and the fact that electrons must pass through the extracellular polymers layer between the solid electrode and the cell, this paper focuses on three types of electrochemical mechanisms and electron transfer modes of extracellular electron transfer occurring in microbial fuel cells, including direct-contact electron transfer, electron transfer by conductive bacterial hair proteins or nanowires, and electron shuttling mediated by the use of soluble electron mediators. Finally, a more complete pathway of electron transfer in microbial carbon steel corrosion due to SRB is presented: an electron goes from the metal anode, through the extracellular polymer layer, the extracellular membrane, the periplasm, and the intracellular membrane, to reach the cytoplasm for sulfate allosteric reduction. This article also focuses on a variety of complex components in the extracellular polymer layer, such as extracellular DNA, quinoline humic acid, iron sulfide (FeSX), Fe3+, etc., which may act as an extracellular electron donor to provide electrons for the SRB intracellular electron transfer chain; the bioinduced mineralization that occurs in the SRB biofilm can inhibit metal corrosion, and it can be used for the development of green corrosion inhibitors. This provides theoretical guidance for the diagnosis, prediction, and prevention of microbial metal corrosion. [ABSTRACT FROM AUTHOR]

Beijing Administration of Traditional Chinese Medicine had set up “Special Funding Program Supporting the development of Traditional Chinese Medicine-Improving the quality and efficacy of Traditional Chinese Medicine”, and two trainer studios for the training of Traditional Chinese Medicine nursing techniques were established: The Trainer Studio for Traditional Chinese Medicine Five-element Music therapy located in Xiyuan Hospital of China Academy of Chinese Medical Sciences, and Yanjing Trainer Studio for Traditional Chinese Medicine External Application located in Beijing Hospital of Traditional Chinese Medicine Affiliated to Capital Medical University. The establishment of two trainer studios has achieved outstanding results in the following aspects: innovation on training model of Traditional Chinese Medicine nursing techniques, enriched cultivating mode for Traditional Chinese Medicine nursing staff, standardization and promotion of Traditional Chinese Medicine, establishment of academic platform for Traditional Chinese Medicine. (北京市中医管理局设立“支持中医药事业发展专项经费—中医药提质增效项目”, 在中国中医科学院西苑医院和首都医科大学附属北京中医医院分别成立“中医五行音乐疗法护理培训师工作室”和“燕京中医外治法护理培训师工作室”。在创新中医护理技术的培训模式、丰富中医护理师资的培养模式、促进中医护理技术的规范及推广、搭建中医护理学术科研平台等方面均取得成效, 为其他省市开展中医护理特色技术师资培训提供借鉴思路。)

Polycyclic aromatic hydrocarbons (PAHs) are of increasing concern due to their environmental persistence, toxicity, and potential for bioaccumulation. In this study, the Ag3PO4/MoS2 composite catalyst with a 10% MoS2 mass fraction exhibited the highest catalytic activity for the degradation of Phe, Pyr, and BaP, with degradation rates of 99.7%, 99.4%, and 96.9% under optimal degradation conditions, respectively. The effects of pH, catalyst dosage, and PAH concentration on the catalytic degradation of PAHs were investigated, and the underlying mechanisms were elucidated. The study of the contribution values of catalytically active species suggested that h+ and O 2 - active species were the primary contributors to the degradation of PAHs, indicating a photogenerated carrier transfer mechanism in the coexistence of heterojunction and Z-type systems. The degradation intermediates were detected by high-resolution mass spectrometry (HRMS), and possible degradation pathways and mechanisms for the photocatalytic degradation of PAHs were proposed. Cycling tests demonstrated that the catalytic degradation of Phe (800 μg/L) remained at 93.5% after four consecutive cycles of the catalyst. As shown above, in this study, a type II heterojunction could be formed between the prepared Ag3PO4/MoS2 composites due to the good band gap matching between Ag3PO4 and MoS2. Meanwhile, in the presence of a minor amount of Ag nanoparticles, a Z-type system could be formulated between the composite catalysts. Rapid separation and transfer of photogenerated electrons and holes generated by the excitation of Ag3PO4 and MoS2 under visible light irradiation thanks to the heterojunction and Z-system. The compounding rate of photogenerated carriers in the composite catalyst was reduced, and the holes with high oxidation performance in the valence band of Ag3PO4 were retained, which enhanced the catalytic performance of the photocatalyst and accomplished the efficient degradation of polycyclic aromatic hydrocarbons in water. [ABSTRACT FROM AUTHOR]

In this study, a dual Z-scheme heterojunction system of Ag3PO4/Bi2Zr2O7/MoS2 was constructed based on the good bandgap alignment among Bi2Zr2O7, Ag3PO4, and MoS2. The photocatalytic performance of the composite catalyst was investigated by degrading Pyrene (Pyr) and Benzo[a]pyrene (BaP). The results revealed that the composite catalyst exhibited excellent photocatalytic performance and stability, showing efficient degradation of Pyr and BaP. The research findings indicate that the presence of the dual Z-scheme heterojunction facilitates the rapid separation and transfer of photogenerated electrons and holes within the composite catalyst. This effectively preserves the photogenerated holes with high oxidative capability in valence band of Ag3PO4 and Bi2Zr2O7, thereby enhancing the catalytic activity of the catalyst. [ABSTRACT FROM AUTHOR]