Results 81 to 90 of about 1,979 (208)
Wavelength‐Multiplexed 2D Beam Steering via a Passive Diffractive Network
Illustration of a wavelength‐multiplexed diffractive beam steering system, which is composed of K cascaded diffractive layers, each containing phase‐modulating elements that are jointly optimized using deep learning–based optimization. When illuminated with a set of wavelengths {λ1,λ2,…,λNw}$\{ {{{\lambda }_1},{{\lambda }_2},\ldots ,{{\lambda }_{{{N}_w}
Che‐Yung Shen +5 more
wiley +1 more source
Distributed optical fiber sensing (DOFS) is reviewed as a transformative technology for intelligent monitoring of transportation infrastructures. Advances in sensing fibers, cable design, and data analytics are summarized alongside representative field applications.
Xin Gui +11 more
wiley +1 more source
Micro/Nanoscale Acoustic Manipulation: From Particle Control to Autonomous Microswimmers
This conceptual framework illustrates acoustic technology as a multifunctional platform enabling passive particle manipulation across scales and autonomous propulsion of microswimmers. ABSTRACT Acoustic manipulation and propulsion technologies have emerged as powerful platforms for micro/nanoscale control, enabled by their non‐contact operation, label ...
Jiahui Chu +4 more
wiley +1 more source
Large Intelligent Surfaces Communicating Through Massive MIMO Rayleigh Fading Channels. [PDF]
Coelho Ferreira R +4 more
europepmc +1 more source
This study addresses hard roof coal seam conditions by optimizing key stratum blasting‐cutting parameters through theoretical analysis, numerical simulation, and field tests. It proposes calculation methods for blast hole spacing and delay timing based on stress wave theory, controlling roadway deformation within 35 mm, thereby enhancing resource ...
Qiong Liu, Duanxiang Fu, Hongbin Li
wiley +1 more source
Comparative Analysis of Uncorrected Rayleigh Fading Channels Models
:In order to compare the complexity and performance of Sum-of-sinusoids (SoS) models for uncorrected Rayleigh fading channels, the second-order statistical formula for deterministic SoS model was derived, which showed that the variance of cross ...
Zhu Qiu-Ming
doaj
Compared with single‐photon methods, TPM enables deep‐tissue imaging using near‐infrared light, with excitation confined to the focal plane, thereby reducing photodamage. SHG microscopy images noncentrosymmetric biological structures such as collagen and myosin without fluorescent labels, offering direct structural contrast.
Kausalya Neelavara Makkithaya +7 more
wiley +1 more source
The explosive growth of multimedia traffic over wireless networks demands robust image transmission mechanisms that maintain perceptual quality under channel impairments.
Prabhath Samarathunga +6 more
doaj +1 more source
Femtosecond‐laser inscription enables precise positioning of fiber Bragg gratings within the cladding, introducing new spatial and modal design freedoms. Auxiliary‐waveguide, near‐core evanescent‐field, and direct cladding‐mode‐excitation architectures provide complementary pathways toward multiparameter, vector, distributed, and environmentally ...
Koustav Dey +3 more
wiley +1 more source

