Results 161 to 170 of about 430,280 (280)

Ricci curvature bounds and rigidity for non-smooth Riemannian and semi-Riemannian metrics. [PDF]

Manuscr Math
Kunzinger M, Ohanyan A, Vardabasso A.
europepmc   +1 more source

Trends in Complex Analysis, Differential Geometry and Mathematical Physics [PDF]

, 2003
openaire   +1 more source

Coherent Control of Thermal Radiation with Nanophotonics

Advanced Photonics Research, EarlyView.
This review explores the innovative control of thermal radiation coherence using nanophotonic structures. The fundamentals of thermal radiation, coherence control strategies (temporal, spatial, and polarization), and their applications in infrared sensing, radiative cooling, thermal camouflage, and imaging, are discussed.
Yuanrong Zhang, Qi Tian, Shuang Zheng, Max Yan, Minming Zhang   +4 more
wiley   +1 more source

On the Meaning of Local Symmetries: Epistemic-ontological Dialectics. [PDF]

Found Phys
François J, Ravera L.
europepmc   +1 more source

Coupling Enhanced Diffractive Deep Neural Network with Structural Nonlinearity

Advanced Photonics Research, EarlyView.
Here, structural nonlinearity is introduced into diffractive deep neural networks (D2NNs) by incorporating encoding‐free data repetition layers, enabling high‐order optical nonlinearity while reducing the system complexity. Additionally, to enhance the design accuracy of D2NNs, a graph neural network is developed to characterize the coupling effects ...
Ouling Wu, Chao Qian, Guangfeng You, Dashuang Liao, Nanxuan Wu, Hongsheng Chen   +5 more
wiley   +1 more source

The performance evolution of Xue and Yamada-Ota models for local thermal non equilibrium effects on 3D radiative casson trihybrid nanofluid. [PDF]

Sci Rep
Galal AM, Akgül A, Idris SA, Formanova S, Ibrahim TK, Hassani MK, Faqihi AA, Abbas M, Mahariq I.   +8 more
europepmc   +1 more source

Switchable Terahertz Beam Steering with Near‐Perfect Ordinary Transmission

Advanced Photonics Research, EarlyView.
This study introduces a reconfigurable metasurface that enables switchable terahertz beam steering upon actuation by a global temperature change. At room temperature, it achieves a true “OFF” state with nearly 100% transmission, behaving as if the metasurface is not present, thereby not distorting incoming light.
Zhixiang Huang, Jie Ji, Ke Ma, Eric Herrmann, Riad Yahiaoui, S M Jahadun Nobi, Fei Ding, Peter Uhd Jepsen, Thomas A. Searles, Binbin Zhou, Zizwe Chase, Xi Wang   +11 more
wiley   +1 more source

Geometric properties of almost pure metric plastic pseudo-Riemannian manifolds. [PDF]

Heliyon
Karaman C, Gezer A, Khan MNI, Ucan S.
europepmc   +1 more source

Thermal Shrinkage‐Induced Modifications in Photonic Bandgaps of Two‐Photon Polymerized Bragg Reflectors

Advanced Photonics Research, EarlyView.
Scanning electron microscopy and white‐light reflectance images of the pillar‐supported distributed Bragg reflector (DBR) are presented before and after thermal shrinkage. The DBR, fabricated via two‐photon polymerization, consists of alternating high‐ and low‐index layers supported by vertical pillars.
Yu‐Shao Jacky Chen, Mike P. C. Taverne, Kevin Chung‐Che Huang, Ying‐Lung Daniel Ho, John G. Rarity   +4 more
wiley   +1 more source

Influence of slip velocity and heat generation on magneto-nanofluid flow via divergent and convergent plates using perturbation technique. [PDF]

Sci Rep
Zada L, Nawaz R, Ahmad H, Makhdoum BM, Suoliman NAA, Almaliki AH, Bayram M.   +6 more
europepmc   +1 more source