Articles techniques et présentations

锂离子电池在便携式电子设备领域占据主导地位，并显著推动了电动汽车的商业化进程。当前全球研发重点集中于开发具有高能量密度、快速充放电能力、高功率输出、低成本及高安全性的电池系统。在材料选择中，机械强度的耐久性与长周期循环的结构完整性成为关键评价指标。锂离子电池内部存在显著的电化学-力学耦合行为，表现为大变形、塑性流动、裂纹扩展与疲劳等现象，进而引起电极剥离、孔隙闭合以及副反应加速等多种失效模式。其中，正极颗粒的破裂等力学-电化学退化机制是限制锂离子电池性能的主要因素之一，因此深入研究正极材料在多场耦合条件下的响应机制，对实现下一代高能量密度电池至关重要。 钴酸锂 ... En savoir plus

Foundation scour is a major cause of bridge collapse worldwide (e.g., Kirby et al., 2015). Indeed, several studies have demonstrated its detrimental effects on the soil-structure system, both in terms of the foundation capacity and stiffness (e.g., Foti et al., 2023). Furthermore, the ... En savoir plus

Clayey soils and rocks are often used to secure contaminants, dissolved in the interstitial water, or fluids immiscible with water, because of their hydraulic properties (very low permeability and high water retention capabilities, see e.g. McCartney et al., 2016). However, their hydro ... En savoir plus

Technical advancements in miniaturization in the last decades have, among others, brought forth the technology of so called “Lab-on-a-Chip” (LOC) systems. These systems provide the possibility to automate and accelerate certain laboratory processes, e.g., biomedical diagnostics, on the ... En savoir plus

Multilayer transition metal dichalcogenides (TMDCs) are an emerging class of dielectric materials with promising applications in modern nanophotonics. They exhibit a much higher refractive index (~ 4 - 4.5) than traditional semiconducting materials like Silicon (~ 3.5) in the near ... En savoir plus

Bladder outlet obstruction (BOO) is a prevalent condition that characterises increased urethral resistance and gives rise to a myriad of lower urinary tract symptoms. Over time, BOO can significantly affect bladder functionality and lower quality of life. Furthermore, surgical ... En savoir plus

In recent years, the development of artificial intelligence has enabled some disruptive innovations by changing the way research is conducted. More specifically, in computer science, a new way of developing algorithms has emerged, based on machine learning techniques. The core idea is to ... En savoir plus

Toxic and hazardous air pollutants are released during chemical processes. The surrounding area of a chemical facility always has a high risk of air pollution by released chemicals. Furthermore, the personnel of the facility as well as community residents have risks of sudden ... En savoir plus

Batteries are considered a key technology for the transition to climate neutrality. There is an urgent need to improve the resource efficiency of existing technologies while transitioning to next-generation battery systems. A mechanistic battery model is a powerful tool to accelerate ... En savoir plus

FT wind sensors measure wind speed and direction using an acoustic field superimposed on a flow field in an acoustic resonator equipped with three piezoelectric transducers. The study proposed here focuses on the acoustic resonance technology of a simplified wind sensor geometry, and how ... En savoir plus