Results 111 to 120 of about 230,808 (236)
This work suggests a fractal antenna in the shape of a crossed flower with a split ring resonator geometry. This suggested antenna serves the Sub-6 GHz 5G and satellite repeater applications for wireless devices operating in the frequency range of 4.01–4.
Upesh Patel +7 more
doaj +1 more source
This study integrates meso‐void characterization, statistical analysis, and machine learning to predict the sound absorption of porous asphalt concrete. Void‐ratio‐related features dominate prediction, while Extra Trees performs best among five evaluated models, supporting acoustic‐oriented PAC mixture design.
Yizhe Han +6 more
wiley +1 more source
This systematic review synthesizes recent advances in Microstrip patch antennas (MPAs) optimization research, highlighting key design targets, optimization methodologies, performance trade‐offs, and application trends. The results demonstrate that MPA optimization is an inherently multivariable problem, with trade‐offs among antenna size, impedance ...
Madihah Zakaria +6 more
wiley +1 more source
Miniaturised ultra‐wideband circular polarised koch fractal crossed dipole array
Ultra‐wideband (UWB) systems utilise a broad frequency spectrum to achieve high data transmission rates and enhanced precision, creating a demand for specialised UWB antennas.
Won Min Choi +5 more
doaj +1 more source
ABSTRACT Objectives This retrospective cross‐sectional study aimed to evaluate differences in maxillary and mandibular trabecular bone structure in individuals with dental fluorosis using fractal dimension (FD) analysis. Materials and Methods The study included 47 individuals: 24 with dental fluorosis and 23 controls.
Ozlem Gormez +2 more
wiley +1 more source
This study integrated ensemble species distribution modelling and urban growth projections to evaluate current and future habitat suitability of V. candicans in the lomas ecosystems surrounding Lima under climate change and urban expansion scenarios. Results identified 2891 km2 of current high‐suitability habitat, with strong scenario‐dependent future ...
Rebeca M. Cruz‐Zegarra +4 more
wiley +1 more source
The Behavior of CPW-Fed Sierpinski Curve Fractal Antenna
In this paper, the behavior of Coplanar Waveguide (CPW) fed SIERPINSKI curve fractal antenna is studied. The results show that there is a relationship between the iteration number and the resonance frequencies.
Abdelati Reha +2 more
doaj +1 more source
LacusPyr, a Catalogue of Lakes and Ponds of the Pyrenees
The LacusPyr dataset provides a comprehensive, georeferenced inventory of Pyrenean lakes and ponds, integrating key geomorphological attributes that underpin limnological processes. By enabling analyses across spatial, elevation, and watershed scales, this dataset supports research on mountain lake functioning, regional metacommunities, climate ...
Jordi Catalan +8 more
wiley +1 more source
A Review of Probabilistic and Novel Approaches to Cost Assessment in CCUS Projects
ABSTRACT Although the renewable energy sector is making progress, there is still a long way to go before green energy can be fully utilized. In this context, Carbon Capture Utilization and Storage (CCUS) technologies can act as a temporary bridge between a high‐emission past and a low‐emission future.
Majid Mohajeri, Saman Azadbakht
wiley +1 more source

