Results 61 to 70 of about 32,501 (269)

Observation of higher-order deterministic optical vortices from random vortex beams

APL Photonics
Optical vortices in coherent beams have been identified as spiral phases with intensity nulls at singularities, while in random beams, they appear as coherence vortices in correlation functions, often not matching intensity nulls. Observing deterministic
Yonglei Liu, Siyu Xu, Peipei Peng, Yongtao Zhang, Siting Dai, Yahong Chen, Yangjian Cai, Fei Wang   +7 more
doaj   +1 more source

Unsteady flow and heat transfer of a generalized Maxwell fluid due to a hyperbolic sine accelerating plate

, 2011
This paper deals with the unsteady flow and heat transfer of a generalized Maxwell fluid over a moving flat plate with variable temperature and hyperbolic sine velocity.
Kang-Ning Wang, Wang, Kang-Ning, Lian-Cun Zheng, Ying-Tao Gao, Zheng, Lian-Cun, Gao, Ying-Tao   +5 more
core   +1 more source

Restoration of a spontaneously broken symmetry in a Euclidean quantum λ φd+14 model with quenched disorder

, 2022
We investigate the low-temperature behavior of a system in a spontaneously broken symmetry phase described by a Euclidean quantum λφd+14 model with quenched disorder.
Krein, G. [UNESP], Heymans, G. O., Svaiter, N. F.   +2 more
core   +1 more source

In Situ Crystalline‐Amorphous Composite Oxide Structure Suppressing Thermal Wear Instability for Refractory Multi‐Principal Element Alloy

Advanced Functional Materials, EarlyView.
An effective strategy is developed to overcome the medium temperatures wear resistance degradation in refractory multi‐principal element alloys. By utilizing chemical short‐range ordering to trigger oxygen‐induced amorphization, a composite oxide structure is formed, which combines high hardness with robust stiffness.
Xuhui Pei, Jianbao Zhang, Hanming Wang, Yin Du, Tao Yang, Ji‐Jung Kai, Benyebka Bou‐Saïd, Haifeng Wang   +7 more
wiley   +1 more source

Fractional order Fourier transform-based fringe-adjusted joint transform correlator

, 2008
176-186An extended fractional Fourier transform (FRT) based fringe-adjusted joint transform correlator (JTC) for real-time target recognition applications has been implemented.
Gupta, Arun K, Bhagatji, Alpana, Nishchal, Naveen K, Tyagi, B P   +3 more
core  

Spectroscopic Investigation of Polysulfide Redox Evolution in Catholyte Solutions for Potassium–Sulfur Batteries

Advanced Functional Materials, EarlyView.
Potassium–sulfur batteries are investigated using UV–vis spectroscopy to track the evolution of potassium polysulfide species at elevated temperature. The study reveals sulfur radical anions as key intermediates and shows how solvent composition and cell design influence polysulfide stability, redox behavior, and cycling performance, providing insights
Chiara Morini, Dawid Kasprzak, Lincoln Crowe, Cecilia Spedalieri, Johannes Baller, Naiyu Qi, Fariza Kalyk, Gustav Graeber   +7 more
wiley   +1 more source

Self‐Adaptive Anhydrous Passivation Mitigates Open‐Circuit Voltage Loss in Pb‐Sn Mixed Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
In this report, a self‐adaptive anhydrous passivation strategy is introduced by incorporating trimellitic anhydride (TMAH) into the perovskite precursor. In situ hydrolysis of TMAH yields trimellitic acid (TMA); ‐C═O/‐COO− groups of TMAH/TMA form a chelate with undercoordinated Pb2+/Sn2+, regulate nucleation, promote (100) orientation, passivate ...
Md. Ataur Rahman, Md. Abdul Karim, Md. Emrul Kayesh, Siliang Cao, Shamim Ahmmed, Kiyoto Matsuishi, Ashraful Islam   +6 more
wiley   +1 more source

Tailoring Li‐ion Storage and Transport in Two‐Dimensional Conjugated Metal‐Organic Frameworks via Precise Nitrogen Incorporation

Advanced Functional Materials, EarlyView.
Two nitrogen‐doped 2D conjugated metal‐organic frameworks (2D c‐MOFs, namely Cu‐Nx‐OHBA, x = 2 or 4) are synthesized, featuring precise nitrogen incorporation via rational ligand design. The Cu‐Nx‐OHBA 2D c‐MOFs are largely tailorable by varying skeletal nitrogen density, with respect to electrical conductivity, Li‐storage capacitance, and Li‐transport
Xiangyu Li, Shaoze Shi, Fucai Cui, Rashid Iqbal, Pengyu Wang, Tianrui Wu, Jingcheng Hao, Renhao Dong   +7 more
wiley   +1 more source

Coupled 2D-Fractional Wavelet Transform

Contemporary Mathematics
We introduce a new fractional wavelet transform using the convolution for the coupled fractional Fourier transform. We derive that the fractional wavelet transform satisfies all the expected properties such as Parseval identity, inversion formula ...
R. Roopkumar, R. Kamalakkannan, A. Zayed
semanticscholar   +1 more source

Estudio de las transformadas integrales como metodo de resolución de ecuaciones diferenciales fraccionarias y sus aplicaciones

, 2023
En este trabajo se estudió las transformadas integrales de Laplace, Fourier y Mellin como método de resolución de ecuaciones diferenciales fraccionarias.
Tenorio Quiñones, Javier Alexander
core