Results 61 to 70 of about 39,531 (283)
Engineering optical forces through Maxwell stress tensor inverse design [PDF]
Journal of the Optical Society of America BPrecise spatial manipulation of particles via optical forces is essential in many research areas, ranging from biophysics to atomic physics. Central to this effort is the challenge of designing optical systems that are optimized for specific applications. Traditional design methods often rely on trial-and-error methods or on models that approximate the
Beñat Martinez de Aguirre Jokisch +2 more
openaire +2 more sources
Advanced Materials, EarlyView.This review highlights recent advances in electrospun nanofiber‐based triboelectric nanogenerators, emphasizing how material design, fiber architecture, and interface engineering collectively enhance output performance and mechanical durability. Key developments in porous, aligned, core‐shell, and hierarchical nanofibers are discussed alongside ...
MD Fajla Rabbi +3 more
wiley +1 more source
Modified Gauge Invariant Einstein-Maxwell Gravity and Stability of Spherical Perfect Fluid Stars with Magnetic Monopoles [PDF]
Iranian Journal of Astronomy and AstrophysicsAs an alternative gravity model, we consider an extended Einstein-Maxwell gravity containing a gauge invariance property. An extension is assumed to be an addition of a directional coupling between spatial electromagnetic fields with the Ricci tensor. We
Hossein Ghaffarnejad, Leyla Naderi
doaj +1 more source
A van der Waals free energy in electrolytes revisited
, 2005 A system of three electrolytes separated by two parallel planes is considered. Each region is described by a dielectric constant and a Coulomb fluid in the Debye-H\"uckel regime.
Alastuey +7 more
core +5 more sources
Holographic Thermal Helicity [PDF]
, 2014 We study the thermal helicity, defined in arXiv:1211.3850, of a conformal field theory with anomalies in the context of AdS$_{2n+1}$/CFT$_{2n}$. To do so, we consider large charged rotating AdS black holes in the Einstein-Maxwell-Chern-Simons theory with
Azeyanagi, Tatsuo +3 more
core +2 more sources
Plasmonic Nanomachines: Creating Local Potential Gradients and Motions
Advanced Materials, EarlyView.Plasmonic nanomachines can generate optical, thermal, and chemical potential gradients to drive directional rectilinear, rotational, and twisting motions at the nanometer scale. The integration of multimodal plasmonic forces with functional materials and programmed structural distortions enables precise spatiotemporal actuation, thereby providing a ...
Yoonhee Kim +3 more
wiley +1 more source
IEEE Access, 2021 Linear Flux Switching Machines (LFSMs) are suitable candidates for long stroke applications as they confines all excitation sources to primary thus leaving completely passive, robust, and low cost secondary.
Noman Ullah +4 more
doaj +1 more source
Electromagnetic Force on a Brane
, 2016 A fundamental assumption in the theory of brane world is that all matter and radiation are confined on the four-dimensional brane and only gravitons can propagate in the five-dimensional bulk spacetime.
Li, Li-Xin
core +1 more source
Stress Tensor of Free Maxwell Field in Friedmann-Robertson-Walker Universe
Scientific World, 1970 The solutions of the Maxwellian field in FRW spacetime, found by using the Newman Penrose formalism, is used to determine the energy-momentum tensor. The tensor is obviously traceless, with the energy density equal to the sum of the radial and the two tangential pressures.
U Khanal, PR Dhungel, SK Sharma
openaire +2 more sources
Orbital Electrowetting: From Continuous Droplet Transport to Programmable Microfluidics
Advanced Materials, EarlyView.This work comprehensively summarizes the mechanisms, recent advances, potential applications, and key challenges of orbital electrowetting. It highlights that integrating orbital electrowetting with conventional electrowetting is required to enable complete digital‐microfluidic workflows while simplifying platform architecture.
Jie Tan +7 more
wiley +1 more source