Results 111 to 120 of about 664,413 (294)

Wave focusing in elastic solids through Leaky-Wave engineering

LAUREA MAGISTRALEQuesta tesi esplora soluzioni innovative per il monitoraggio strutturale (SHM) e per i controlli non distruttivi (NDT) che sfruttano il fenomeno delle Leaky waves.
Espis, Stefano, Gavazzeni, Matteo
core  

Lab‐in‐a‐Tube System Integrating Hierarchically Wrinkled Electrodes and DNAzyme‐Functionalized Beads for Diagnosis of Clostridioides difficile Infection

Advanced Materials, EarlyView.
The point‐of‐care diagnosis of Clostridioides difficile infection remains challenging due to reliance on slow culture and amplification‐based methods. A lab‐in‐a‐tube electrochemical biosensor integrating DNAzymes, antifouling magnetic beads, and a hierarchically structured flow cell enables amplification‐ and culture‐free detection directly in stool ...
Survanshu Saxena, Soyeon Lee, Youngeun Choi, Jonathan L'Heureux‐Hache, Jiaying Liu, Sadman Sakib, Sara M. Imani, Marek Smieja, Yingfu Li, Todd Hoare, Leyla Soleymani   +10 more
wiley   +1 more source

Dielectric EBG Leaky-Wave Antenna: Design and Experimental Validation

IEEE Open Journal of Antennas and Propagation
This paper proposes a novel Electromagnetic Band-Gap (EBG) leaky-wave antenna (LWA) operating in the K-band with enhanced directivity at broadside. A rigorous method that combines the analysis of the band diagrams of Bloch waves propagating within two ...
Ludovica Tognolatti, Paolo Baccarelli, Cristina Ponti, Silvio Ceccuzzi, Vakhtang Jandieri, Giuseppe Schettini   +5 more
doaj   +1 more source

Poly(Alkoxythiophene) Rod‐Coil Block Copolymers for Organic Electrochemical Transistors

Advanced Materials, EarlyView.
We present the first synthesis of poly(3‐alkoxythiophene) rod‐coil block copolymers as a new architecture for OMIECs. Incorporating PEG and PLLA coils can enhance device performance beyond the homopolymer. The figure‐of‐merit depends uniquely on coil length.
Junfu Tian, Wentao Shan, Rachael Found, Paola Mantegazza, Francesco Leoni, Andreas W. Erhardt, Yuyun Yao, Matus Stredansky, Arianna Magni, Adam Marks, Elena Chulanova, Zeinab Hamid, Yueying Huang, Wanpeng Lu, Xian'e Li, Baopu Zhang, Qingpei Wan, Christina Kousseff, Matilde Concilio, Ruth Theresia Arwani, Caroline A. Ross, Sahika Inal, Giovanni Costantini, Iain McCulloch   +23 more
wiley   +1 more source

Recent Advances in Plasma‐Enhanced Atomic Layer Etching for Next‐Generation Nanofabrication

Advanced Materials Interfaces, EarlyView.
Continued semiconductor miniaturization demands atomic‐scale patterning and ultralow surface roughness beyond the capabilities of conventional reactive ion etching. This review highlights advances in isotropic and anisotropic plasma‐enhanced atomic layer etching since 2020, covering fundamental mechanisms, applications across major semiconductor ...
Shih‐Nan Hsiao
wiley   +1 more source

Advances in Halide Perovskites for Photon Radiation Detectors

Advanced Materials Technologies, EarlyView.
This work highlights recent progress in perovskite‐based photon radiation detectors, covering organic–inorganic hybrid, inorganic, lead‐free double, and vacancy‐ordered halide perovskites. Their detection performance is compared, material‐specific advantages and challenges are examined, and provides insight into current limitations and future ...
Liangling Wang, Jieqi Wang, Xiaojun Cui, Carsten Ronning   +3 more
wiley   +1 more source

The role of surface waves in design of planar leaky wave antennas

, 2016
We study two types of leaky wave antenna structures and the role of surface waves in their design. The first leaky wave antenna is a multi-dielectric structure of layered contrasting refractive indices.
Samir F. Mahmoud, Symon K. Podilchak, Mahmoud, Samir F., Antar, Yahia M. M., Yahia M.M. Antar, Freundorfer, Alois P., Alois P. Freundorfer, Podilchak, Symon   +7 more
core   +1 more source

Ultrathin and Flexible Organic Light‐Addressable Potentiometric Sensors

Advanced Materials Technologies, EarlyView.
The first ultrathin, fully organic, and flexible light‐addressable potentiometric sensor (LAPS) is demonstrated. With a thickness of only 2.3–2.9 µm, this standalone film offers sensitivity to electrolyte potential and stable performance for over 170 days.
Ami Ichikawa, Yudai Hemmi, Yuanyuan Guo, Georgios Bairaktaris, Carl Frederik Werner, Tomohiko Murayama, Hiroyuki Matsui   +6 more
wiley   +1 more source

Rayleigh Bound States in the Continuum in Shallow Surface Relief Phononic Crystals

Crystals
We present an investigation into the band structure of acoustic waves in surface phononic crystals (SPnC), which comprise a square lattice of shallow cylinders on a mechanically isotropic semi-infinite substrate, utilizing the finite element method (FEM).
Francesc Alzina
doaj   +1 more source

Using prisms to excite leaky waves or to launch surface electromagnetic waves

, 1984
The ability of prisms to couple incident VEM radiation from a laser beam into leaky waves or to launch surface electromagnetic waves has been investigated.
Sirotiak, Gerald Kent
core