98%
921
2 minutes
20
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1053/j.jvca.2019.07.121 | DOI Listing |
Chaos
September 2025
Physics and Applied Mathematics Unit, Indian Statistical Institute, 203 B. T. Road, Kolkata 700108, India.
Recent findings suggest that higher-order (group) interactions provide a general pathway to explosive phenomena in networks of coupled oscillators. While these abrupt, first-order transitions, termed explosive synchronization, are of significant theoretical interest, they are often undesirable and potentially dangerous in many real-world systems. Motivated by this, we investigate a control mechanism to suppress explosive synchronization in adaptive multilayer networks incorporating higher-order interactions by introducing a phase lag into the system.
View Article and Find Full Text PDFCommun Eng
September 2025
Department of Disaster Mitigation for Structures, College of Civil Engineering, Tongji University, Shanghai, China.
Standard physics informed deep learning and their enhanced variants encounter challenges in addressing inverse problems characterized by extreme discontinuities and high-order parameterized differential equations due to the use of globally smooth activation functions, especially when the unknown parameters exhibit spatially distributed characteristics. Phenomena such as discontinuous loads, boundary truncations, and abrupt changes in material properties introduce singularities in the derivatives, which in turn lead to ill-conditioned information in the gradient flow. To address these limitations, here we propose an information-distilled physics-informed deep-learning framework that combines reduced-order modeling, multi-level domain decomposition, and an ill-conditioning-suppression mechanism.
View Article and Find Full Text PDFMaterials (Basel)
August 2025
Guangdong Provincial Key Laboratory of Electronic Functional Materials and Devices, Huizhou University, Huizhou 516001, China.
High-power microelectronic packaging faces critical thermomechanical failures under rapid thermal cycling, primarily due to interfacial stress concentration and warping in conventional homogeneous heat sinks. To address this challenge, this study proposes a novel functionally graded SiC/Al composite with a tailored thermal expansion coefficient (CTE) gradient, designed to achieve adaptive thermal expansion matching between the chip and heat sink. Through multiscale finite element analysis, the stress-strain behavior and warping characteristics of homogeneous (Cu and Al) and gradient materials were systematically investigated.
View Article and Find Full Text PDFEpilepsia
August 2025
Assistance Publique - Hôpitaux de Paris (AP-HP), Epilepsy Unit and Electroencephalography Unit, Pitié-Salpêtrière Hospital, Reference Center for Rare Epilepsies, European Reference Network EpiCARE, Paris, France.
Objective: Status epilepticus (SE) is a common neurological emergency associated with high morbidity and mortality. SE is classified as refractory when it persists despite benzodiazepine and second-line antiseizure medication. Managing refractory SE in the intensive care setting often requires high doses of sedative drugs, which can induce burst suppression or complete electrical suppression (amplitude < 10 μV).
View Article and Find Full Text PDFAdv Sci (Weinh)
August 2025
Department of Nano Engineering, Department of Nano Science and Technology, SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea.
Achieving both high linearity and symmetricity in metal halide perovskite (MHP)-based memristors remains challenging, primarily due to their abrupt switching behaviors and irregular conductive filament (CF) pathways. Here, bifacially engineered MHP memristors exhibiting simultaneous high linearity, symmetricity, and reliability are reported. Top-surface passivation using phenylethylammonium iodide (PEAI) facilitates the formation of an ultrathin 2D perovskite layer (PEAPbI), promoting gradual switching and effectively suppressing ion migration during CF formation, thereby significantly enhancing the linearity of long-term potentiation.
View Article and Find Full Text PDF