Results 231 to 240 of about 61,993 (309)

Metalens‐Enabled Twisted Chromatic Dispersion

Advanced Physics Research, Volume 5, Issue 5, May 2026.
We successfully demonstrate visible broadband twisted dispersion metalenses. As a proof of concept, we realized two distinct devices: the conical helical and the spring‐like dispersion‐controlled metalenses. These results rigorously validate the universality of our approach in customizing arbitrary continuous 3D dispersion trajectories, thereby ...
Shiyu Zheng, Boyan Fu, Hong Zhang, Shuming Wang   +3 more
wiley   +1 more source

Circularly polarized millimeter-wave hemisphere DRA employing FSS polarizer and dielectric superstrate for 5G applications. [PDF]

Sci Rep
Alanazi MD, A AM, Ibrahim AA.
europepmc   +1 more source

Helmeted hornbill cranial kinesis: Balancing mobility and stability in a high‐impact joint

The Anatomical Record, Volume 309, Issue 5, Page 1299-1312, May 2026.
Abstract Prokinesis—in which a craniofacial joint allows the rostrum to move relative to the braincase—is thought to confer diverse advantages in birds, mostly for feeding. A craniofacial joint would, however, be a weak link if cranial stability is important. Paradoxically, we have identified a craniofacial joint in helmeted hornbills (Rhinoplax vigil),
Mike Schindler, Benjamin Flaum, Armita Razieh Manafzadeh, Viktoriia Kamska, Kanmani Chandra Rajan, Maria Jose Robles Malagamba, Ruien Hu, Daniel Baum, Mason N. Dean   +8 more
wiley   +1 more source

Study of a wideband high data rate implantable antenna for cortical visual prosthesis. [PDF]

Sci Rep
Ou RX, Yu WL, Xu CZ.
europepmc   +1 more source

Experimental methods in chemical engineering: Atomic absorption spectrometry—AAS

The Canadian Journal of Chemical Engineering, Volume 104, Issue 5, Page 2206-2224, May 2026.
Abstract Elements absorb electromagnetic radiation (light) of a specific wavelength in proportion to the number of atoms in its path. As the atoms absorb this light energy, electrons rise from the ground state to an excited state. In atomic absorption spectrometry (AAS), high temperatures produce clouds of atoms from the sample (atomization) and ...
Emily Cintia Tossi de A. Costa, Jildimara de Jesus Santana, Viviane de Oliveira Campos, Felipe Fernandes Barbosa, Gregory S. Patience   +4 more
wiley   +1 more source

2-Bit reconfigurable microstrip antenna with independently controlled hybrid slots for polarization and frequency switching. [PDF]

Sci Rep
Lee DH, Han J, Park DJ, Pyo S.
europepmc   +1 more source

3D‐Printed High‐Fidelity Pediatric Mannequin for Rigid and Flexible Bronchoscopy Training on Difficult Airways

Engineering Reports, Volume 8, Issue 5, May 2026.
The article describes the design and manufacturing process of a novel pediatric high‐fidelity pathological mannequin for clinical training on unanticipated difficult airway management using rigid and flexible bronchoscopy. The mannequin has been developed from the CT scans of a 19‐month‐old polysyndromic patient (Crouzon Syndrome), thanks to the ...
Marta Mencarelli, Paola Serio, Luca Puggelli, Roberto Baggi, Stefano Avenali, Yary Volpe   +5 more
wiley   +1 more source

Polarization-Reconfigurable Metasurface Antenna Design for Drone Terminals Based on Characteristic Mode Analysis. [PDF]

Micromachines (Basel)
Zhang S, Yu H, Wen X, Zheng H.
europepmc   +1 more source

Antenna Design and Wavelength Modulation in Microwave Tumor Ablation: A Multiphysics Study on SAR Optimization Across Pulmonary Targets

Engineering Reports, Volume 8, Issue 5, May 2026.
Microwave coagulation therapy achieves lesion treatment through thermal effects (tissue heating coagulation) and nonthermal effects (cell activity regulation). ABSTRACT Microwave ablation (MWA) has become an increasingly important minimally invasive treatment option for pulmonary lesions, though its clinical performance remains limited by tissue ...
Yiheng Li, Liyuan Guo, Hengyu Wu, Lei Tao, Xiaoqing Liu, Xinhua Song   +5 more
wiley   +1 more source

Wideband circularly polarized dielectric resonator antenna with high gain for microwave wireless power transfer. [PDF]

Sci Rep
Abdalmalak KA, Abdelmoneim LH, Alsirhani KF, Alanazi MD, Nasrat L, Abdel-Nasser M.   +5 more
europepmc   +1 more source