Results 101 to 110 of about 6,905 (202)
Multiple Twinning in Nacre and Aragonite
Electron backscatter diffraction map of a cluster of geologic aragonite, exhibiting single, double, and triple twins. The whole cluster is approximately 2 cm wide. Colors indicate crystal orientations, so that pixels where the a‐, b‐, and c‐axis is perpendicular to the image plane are green, red, and blue, respectively.
Connor A. Schmidt +7 more
wiley +1 more source
Recent advances in materials and device engineering enable continuous, real‐time monitoring of muscle activity via wearable and implantable systems. This review critically summarizes emerging technologies for tracking electrophysiological, biomechanical, and oxygenation signals, outlines fundamental principles, and highlights key challenges and ...
Zhengwei Liao +4 more
wiley +1 more source
A New Padé Approach to Modeling Wormholes in Dekel‐Zhao Dark Matter Halos
A matter‐first Padé strategy is introduced to build traversable wormholes from prescribed dark‐matter halos. Rational Padé fits approximately the Dekel–Zhao density and are analytically integrated to obtain a shape function that exactly reproduces the intended matter content, avoiding spurious poles of geometry‐first schemes.
Jonathan Alves Rebouças +4 more
wiley +1 more source
Climate change increases geomorphological disturbances, which in turn affect vegetation establishment in high‐elevation areas; understanding species' responses to such disturbances is essential. We analysed vegetation across disturbed and undisturbed alpine sites to identify environmental drivers and assess species trait plasticity.
Sarah Kinzner +4 more
wiley +1 more source
ABSTRACT Background Tuberculosis (TB) remains a significant public health challenge, necessitating accurate forecasting methodologies to support effective control and prevention strategies. This paper explores the application and comparative performance of single and hybrid time‐series models for forecasting TB incidence trends specifically in Somalia.
Hana Mahdi Dahir +4 more
wiley +1 more source
ABSTRACT Nonlinear mechanical vibrations under harmonic forcing can be well approximated by Fourier series. For a finite number of harmonics, the error is minimized over one period of vibration. This technique, known as multiharmonic balance method (MHBM), is today widely used in academics as well as industrial applications, e.g., for friction‐damped ...
Sebastian Tatzko +2 more
wiley +1 more source
In this research pedagogic influence of a dynamic geometry software in the geometric perception of the trigonometry functions sine, cosine and tangent, using Van Hiele’s model, which not only helps guide the process of learning in geometry having as ...
Jorge Hernán Aristizábal-Zapata +2 more
doaj
Approximate Stability Analysis of Omega‐Stringer Stiffened Composite Panels
ABSTRACT Thin‐walled composite structures are widely used in weight‐critical applications such as aircraft and spacecraft. However, ensuring the stability of such structures under various load cases remains a key challenge in their design and optimization.
Cherine El Yaakoubi‐Mesbah +1 more
wiley +1 more source
A Thermodynamic Framework for Turing‐Type Instabilities in Porous Media: Part I Theory
Abstract Pattern formation in geological materials is commonly described using analogies to Turing‐type reaction–diffusion systems, yet a unifying thermodynamic explanation remains elusive. Here we develop a multiscale, thermodynamically consistent framework for pattern‐forming instabilities in porous media undergoing coupled thermo–hydro–mechanical ...
Klaus Regenauer‐Lieb +5 more
wiley +1 more source
Mechanical behavior and energy absorption capability of trigonometric function curved rod cell-based lattice structures under compressive loading. [PDF]
Zhang L, Wu J, Zhao Y, Qin Z.
europepmc +1 more source

