泉州师范学院

Aqueous zinc-ion batteries (AZIBs) hold great promise for large-scale energy storage, yet face challenges such as zinc dendrites and hydrogen evolution at conventional Zn anodes. This work presents a facile one-pot hydrothermal synthesis of mesoporous MoO2 nanoparticles as an alternative anode material. The synthesized MoO2 exhibits a high specific surface area (108.1 m(2) g(-1)), uniform mesoporous structure (5-30 nm), and small particle size (< 20 nm). As an AZIB anode, it delivers a high initial discharge capacity of 224.2 mAh g(-1) at 0.2 A g(-1) and demonstrates exceptional cycling stability (67.7% capacity retention after 5000 cycles at 5 A g(-1)) and rate capability (71.8% capacity retention from 0.2 to 5.0 A g(-1)). Kinetic analyses reveal dominant capacitive behavior, facilitated by rapid ion transport in mesopores and monoclinic channels. Crucially, a dual-ion (Zn2+/H+) co-intercalation storage mechanism is uncovered, involving reversible ion intercalation/deintercalation with minimal structural change in MoO2, alongside the formation of zinc hydroxysulfate (ZHS) as a byproduct. Furthermore, a rocking-chair full cell (MoO2 anode||Zn2+-preintercalated MnO2 cathode) achieves 82% capacity retention after 1000 cycles at 1 A g(-1), demonstrating outstanding stability and practical potential.

This paper addresses the central question of how AI can be harnessed for human betterment rather than becoming a source of disruption. Through the integrated lenses of holistic worldview and social role theory, it provides a focused analysis of AI's developmental trajectory, ethical challenges, and governance needs, offering a structured framework for understanding AI's societal implications and guiding future research and policy. By tracing AI's developmental trajectory from its prehistory inception to its current multifaceted applications, the study elucidates key theoretical breakthroughs, technological advancements, and practical implementations. Furthermore, it critically examines the ethical risks, security challenges, and social governance issues associated with AI, proposing a forward-looking research and policy agenda. The paper underscores the necessity for a balanced approach to AI development that harmonizes innovation with ethical governance, ensuring inclusive benefits for humanity.

Solar energy stands as one of the most promising green energy sources today. This paper proposes a symmetrical gap-type separated solar absorber and radiator (SETR) featuring a dielectric layer of Al2O3 and metal W as separation columns. Its unique structure enhances absorption within the effective solar energy spectrum, thereby alleviating solar energy absorption challenges. The finite difference time domain method (FDTD) results show that the SETR achieves an absorption rate of more than 90% in the 280-2096 nm band, which perfectly covers the visible light band range. The weighted average absorption in the 280-2500 nm band is 95.22% under AM1.5 conditions. The thermal emission efficiency at 1500 K is 95.13%, and the thermal radiation loss is less than 5%. Beyond analyzing the results, we also investigated the overall band absorption efficiency of the SETR under varying conditions by adjusting its structural parameters and physical parameters such as materials. This approach enables effective control over the absorption spectrum. Additionally, the proposed SETR is independent of polarization conditions. Both the TM and TE modes are insensitive to large incident angles. In the future, broadband SETRs can be applied to solar energy harvesting, thermoelectric conversion, and imaging fields, as it holds broad application prospects.

As the energy crisis gradually becomes the main cause of global conflict, the utilization of solar energy is imperative for the well-being of the planet. Regarded as a renewable energy source by the scientific community, solar energy has become one of the most important areas of future energy exploration. This paper proposes a solar absorber design based on Ti with fractal geometry. The device is designed to optimize solar energy utilization, thereby achieving higher efficiency. It exhibits over 90 % absorption across the 446.5-2479.5 nm wavelength range, with a weighted average absorption rate of 92.47 % under AM1.5 conditions. The device also exhibits favorable thermal radiation characteristics, achieving thermal radiation efficiencies of 86.5 %, 88.66 %, and 90.07 % at temperatures of 1000 K, 1250 K, and 1500 K, respectively. Furthermore, the structure, material, and parameters of the solar absorber were modified to ascertain the impact of these factors on the absorption process. Finally, the absorber structure is designed to exhibit perfect symmetry in the X and Y directions, making the solar absorber proposed in this paper polarization independent. It boasts an average absorption efficiency of 91.01 %, maintaining this efficacy in both transverse electric (TE) and transverse magnetic (TM) modes up to an incidence angle of 60 degrees. This work innovates by designing a titanium-based split ring structure. Its unique layout enhances the surface plasmon resonance effect in each corner, thereby broadening the bandwidth. Its good environmental adaptability indicates that the structure is suitable for solar energy absorption applications.

Foreign Language (L2) learning orientations play a key role in shaping learners' engagement, effort, and emotional investment. However, research on these orientations within telecollaborative contexts is limited. This study explores the evolution of L2 learners' orientations in a cross-cultural telecollaborative setting. 172 reflective essays and learning portfolios were collected from 64 Taiwanese English majors participating in an eight-week Taiwanese-New Zealand program. Through qualitative content analysis, the study reveals how learners' initial orientations evolved across different phases of the program, with new orientations emerging in response to telecollaborative tasks, intercultural interactions, and technological mediation. The findings provide valuable insights into how technology-mediated intercultural exchanges shape L2 learning orientations and offer practical implications for optimizing program design to better support learner engagement and outcomes.