Results 131 to 140 of about 1,806 (250)
Towards Fractal Antennas: A multiband Sierpinski Triangle (Gasket) Fractal Vivaldi Antenna
, 2023 Using Sierpinski Triangle Fractals (STFs), a revised Vivaldi antenna with multiband coverage is presented. This report explains how fractal itera-tions can be increased to increase the impedance bandwidth and create new bands for multiband applications.
openaire +1 more source
Wearable biofluids colorimetric biosensors
FlexMat, Volume 3, Issue 2, Page 299-326, June 2026.Wearable and flexible colorimetric sensors enable real‐time, non‐invasive detection through visible color changes. Advances in materials and device engineering have driven their development; however, challenges remain in sensitivity, selectivity, and scalable manufacturing.
Zhaoyuan Lyu +8 more
wiley +1 more source
Fuel Cells, Volume 26, Issue 3, June 2026.ABSTRACT SUS 316L bipolar plates (BPPs) with rectangular micro‐channels for polymer electrolyte membrane fuel cell (PEMFC) were fabricated using powder bed fusion (PBF) technology, and the effects of flow‐field structure parameters (channel width, rib width, and channel depth) on fuel cell performance were analyzed.
Chul Kyu Jin, Sung Hwan Bae, Min Sik Lee
wiley +1 more source
Distributed processing of a fractal array beamformer
, 2013 Fractals have been proven as potential candidates for satellite flying formations, where its different elements represent a thinned array. The distributed and low power nature of the nodes in this network motivates distributed processing when using such ...
Weiss, Stephan +9 more
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Information &Functional Materials, Volume 3, Issue 2, Page 127-155, June 2026.By integrating various characterization and electrochemical techniques, this review emphasizes the importance of elucidating these mechanisms. Analysis of the sodium storage behavior in specific carbon materials further underscores the vital significance of such mechanistic research.
Wenjie Huang +4 more
wiley +1 more source
An Overview of Tsunami Hazards in the Southwest Pacific Ocean
New Zealand Journal of Geology and Geophysics, Volume 69, Issue 2, June 2026.The southwest Pacific region is geologically complex and exhibits all the principal causes of tsunami generation. While contemporary events and historical catalogs indicate that trans‐Pacific tsunamis have affected this area (∼18% of tsunamis reported globally), it is unique in that a large part of the tsunami effects over the ∼200‐year historical ...
Jean H. M. Roger +13 more
wiley +1 more source
Investigations on some compact wideband fractal antennas [PDF]
, 2013 Today’s small handheld and other portable devices challenge antenna designers for ultrathin, and high performances that have the ability to meet multi standards.
Choukiker, Yogesh Kumar
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Macromolecular Bioscience, Volume 26, Issue 6, June 2026.Fibrinogen self‐assembly follows distinct anion‐directed pathways. Phosphate promotes ordered nucleation and elongation into interconnected nanofibrous networks, whereas chloride induces disordered porous aggregates. Specific phosphate retention within the fibers suggests direct ion–protein interactions during fibrillogenesis.
Antoine Eyram Kwame +5 more
wiley +1 more source
Macromolecular Materials and Engineering, Volume 311, Issue 6, June 2026.Textile‐derived recycled polyester waste is transformed into ultra‐fine nanofibrous air filters via statistically optimized electroblowing. Bead‐free fibers as small as 41 ± 14 nm are achieved, resulting in enhanced filtration efficiency, quality factor, and long‐term electret stability after corona treatment.
Ali Toptaş
wiley +1 more source
Portable low profile antenna at X-band
, 2011 An antenna which has been conceived as a portable system for satellite communications based on the recommendations ITU-R S.580-6 and ITU-R S.465-5 for small antennas, i.e., with a diameter lower than 50 wavelengths, is introduced.
Fernández González, José Manuel +5 more
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