Results 111 to 120 of about 441,378 (284)
MicromachinesA compact Ka-band antenna array has been proposed to realize broadband and high gain for millimeter-wave applications. The antenna array is divided into a multilayer composed of a driven slot patch layer and a parasitic patch array layer, which is ...
Kun Deng +5 more
doaj +1 more source
Carbon Energy, EarlyView.A multifunctional additive regulates perovskite precursor colloids and crystallization kinetics during slot‐die coating, enabling compact and low‐defect perovskite film. This strategy delivers an efficiency of 21.42% for perovskite solar modules with an area of 164 cm2, as well as enhanced operational stability.
Lianjie Duan +7 more
wiley +1 more source
Computational FEM Model and Phantom Validation of Microwave Ablation for Segmental Microcalcifications in Breasts Using a Coaxial Double-Slot Antenna. [PDF]
Biomed Res Int, 2021 Segura Félix K +8 more
europepmc +1 more source
Deep Underground Science and Engineering, EarlyView.In the process of water‐soluble cavern construction of salt cavern energy storage, since the interlayer does not dissolve in water easily, sudden collapse will cause engineering accidents such as bending and damage of the inner tube of the cavern.
Zenghui Zhao +5 more
wiley +1 more source
A Reconfigurable Ultra-Wideband (UWB) Antenna with Single Band-Rejection [PDF]
, 2018 In this paper, a reconfigurable ultra-wideband (UWB) antenna with WLAN band-rejection is presented. The proposed antenna operates in the ultra-wideband frequency band from 2.99 – 10.82 GHz with band- rejection of 5.00 – 5.85 GHz.
Ali, M.T.; Antenna Research Group (ARG), Faculty of Electrical Engineering (FKE), Universiti Teknologi MARA (UiTM), Shah Alam, Selangor, 40450, Malaysia. +3 more
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Deep Underground Science and Engineering, EarlyView.This study proposes an eco‐friendly coal permeability enhancement technique by utilizing mine waste gangue as an abrasive in high‐pressure water jets. Integrating erosion experiments with smoothed particle hydrodynamics‐finite element method coupled simulations, the research study elucidates the flow field dynamics and a nonlinear solid–liquid ...
Qingxiang Wang +4 more
wiley +1 more source
EcoEnergy, EarlyView.We report a 30 × 38 mm2 flexible thermoelectric device based on vertically aligned p/n Bi2Te3 thin films with high power factors of 31.0 and 20.3 μW cm−1 K−2. An optimized device geometry achieves a high normalized power density of 3.5 μW cm−2 K−2 through efficient thermal management, while maintaining excellent stability and modular scalability ...
Qingyi Liu +5 more
wiley +1 more source
Gain Enchancement of Microstrip Leaky-Wave 1x3 Antenna with V-Slot
Jurnal ElkomikaThis study aims to improve the performance of a microstrip leaky-wave antenna by adding a 1x3 array configuration and a V-slot structure for WLAN applications in the 5.925 − 6.425 GHz, using an FR-4 substrate with a dielectric constant of 4.6 ...
MUHAMAD WAHYU IQBAL +2 more
doaj +1 more source
EcoEnergy, EarlyView.Carbonization temperature regulates the pore structure of active materials, leading to distinct pore volumes and particle assemblies of MoO2/Mo2C‐C nanoflower composites. These material‐level structural features determine the degree of interparticle contact within the electrode, and thus, the effective electronic conductivity. The optimized M750 sample
Liying Xue +4 more
wiley +1 more source