858 papers
This paper establishes a rigorous finite-amplitude stability criterion for thermal convection in a densely perforated generalized Couette cell by deriving an exact energy identity that proves the nonlinear stability threshold coincides with the linear critical threshold, while analytically characterizing the effects of perforation intensity and thermal contact on the system's stability.
This study investigates and compares the dynamic response of an elastic cylindrical rod to spherical and plane elastic waves within an unbounded fluid-saturated porous medium using Biot's and Lame-Navier's formulations, analyzing the effects of material properties, porosity, frequency, and source distance on induced stresses through numerical examples and validation against existing research.
This study demonstrates that metastable nanoparticle cores can act as quantum amplifiers to reveal discrete single-ion quantum energy levels in disordered biogenic magnetoferritin, overcoming decades of experimental limitations through the detection of a field-periodic, phase-coherent switching resonance in first-order reversal curve measurements.
This paper utilizes Pantheon+SH0ES, CC+BAO, and joint observational data within a Rainbow Gravity framework coupled with generalized holographic dark energy models to demonstrate that temporal versus spatial metric modifications yield distinct cosmological constraints and black hole accretion histories, with the temporal modification (RF1) providing more stable results while the spatial modification (RF2) predicts a higher Hubble constant and slightly lower mass growth.
This study corrects previous spectral and temperature assumptions in perovskite-silicon tandem solar cell modeling, revealing that the bandgap maximizing annual energy yield is identical to the standard-test-condition optimum (1.72 eV) across diverse climates, thereby refuting earlier claims of a climate-dependent optimization advantage while confirming the significant gains of optimizing against an uncorrected baseline.
This paper presents the first quantitative meta-analysis of Silicon Nitride (Si3N4) as a CMOS gate dielectric across technology nodes from 250 nm to 3 nm, establishing a universal scaling framework and identifying distinct material-specific reliability physics that position Si3N4 as a critical, resurgent component for advanced gate stacks, memory, and photonic applications.
This paper proposes and optimizes a novel Laser-Electromagnetic Acoustic Transducer (EMAT) configuration featuring a magnetic concentrator, which significantly enhances signal amplitude and extends the lift-off detection distance to 30 mm for inspecting metal materials in complex environments.
This study demonstrates that pristine cubic ice (Ic) can be reproducibly formed directly from the liquid state at atmospheric pressure by cooling a hydrate-forming aqueous solution confined within mesoporous silica, revealing that nanoconfinement and clathrate promoters enable a naturally accessible pathway for this previously elusive polymorph.
This study demonstrates that circuit topology is a primary determinant of noise propagation in variational quantum circuits, accounting for nearly half of the explainable variance in noise response and establishing a consistent ranking hierarchy (star > grid ≈ linear > ring) that persists across diverse noise models and IBM hardware, while also revealing a shared noise-response structure between quantum and classical machine learning systems.
This paper demonstrates the feasibility of solid-state cooling in printable thermogalvanic cells, where an ultralow voltage drives reversible electrochemical reactions to achieve a temperature drop of approximately 0.1 K, offering a lightweight and flexible solution for thermal management in miniaturized electronic systems.