Results 101 to 110 of about 4,739,253 (306)

A Collection of Complex Permittivity and Permeability Measurements

, 1993
We present the results of measurements of the complex permittivity and permeability over a frequency range of 0.1-5.1 GHz for a range of microwave absorbing materials used in a variety of accelerator applications. We also describe the automated measurement technique which uses swept-frequency S-parameter measurements made on a strip transmission line ...
Barry, W, Byrd, J, Johnson, J, Smithwick, J   +3 more
openaire   +4 more sources

Printed Integrated Logic Circuits Based on Chitosan‐Gated Organic Transistors for Future Edible Systems

Advanced Functional Materials, EarlyView.
Edible electronics needs integrated logic circuits for computation and control. This work presents a potentially edible printed chitosan‐gated transistor with a design optimized for integration in circuits. Its implementation in integrated logic gates and circuits operating at low voltage (0.7 V) is demonstrated, as well as the compatibility with an ...
Giulia Coco, Valerio Francesco Annese, Valerio Galli, Ilaria Penna, Debora Russo, Marina Veronesi, Rita Scarpelli, Stefania Sabella, Mario Caironi   +8 more
wiley   +1 more source

Upscaling of Permeability Field of Fractured Rock System: Numerical Examples

Journal of Applied Mathematics, 2012
When the permeability field of a given porous medium domain is heterogeneous by the existence of randomly distributed fractures such that numerical investigation becomes cumbersome, another level of upscaling may be required.
Kai Bao, Amgad Salama, Shuyu Sun
doaj   +1 more source

Nuclear magnetic resonance features of low-permeability reservoirs with complex wettability

Petroleum Exploration and Development, 2017
The nuclear magnetic resonance T2 spectra of low-permeability reservoirs with complex wettability were studied using the samples from the Chang 8 Member, Upper Triassic Yanchang Formation, Ordos Basin, China.
Cheng FENG, Yujiang SHI, Jianfei HAO, Zhenlin WANG, Zhiqiang MAO, Gaoren LI, Zhihao JIANG   +6 more
doaj   +1 more source

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

Advanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein, Tiago Carneiro Gomes, Eliza Ng, Simon Rondeau‐Gagné, Tricia Breen Carmichael   +4 more
wiley   +1 more source

On the parameters of common settling velocity models for porous sediment aggregates

International Journal of Sediment Research
The settling behavior of sediment aggregates is a critical factor influencing the transport of fine-grained sediment in riverine and marine environments.
Alexander Metelkin, Bernhard Vowinckel
doaj   +1 more source

Wearable Smart Patches on Sustainable Chitosan With Reversible Microbial Growth‐Inhibitory Properties

Advanced Functional Materials, EarlyView.
ABSTRACT Chitosan, a polysaccharide upcycled from biowaste, has long promised sustainable, biocompatible, and antimicrobial films and devices, an appeal reinforced by its recent regulatory recognition, with several chitosan‐based antibacterial dressings gaining clearance through the Food and Drug Administration's 510(k) pathway.
Jacopo Nicoletti, Kubra Kocak, Andrea Michel, Enrico Cavarzerani, Ali Raza, Petr Rohzin, Nouha Loudhaief, Saimir Frroku, Nicolò Baldovin, Hazrat Bilal, Alvise Perosa, Maurizio Selva, Flavio Rizzolio, Luca Sbuelz, Sabrina Tamburini, Domenico De Fazio, Giovanni Antonio Salvatore   +16 more
wiley   +1 more source

A novel permeability calculation model to simultaneously quantify the impacts of pore and fracture with full feature size

International Journal of Mining Science and Technology
The permeability of rocks is of utmost importance in the exploitation of deep geological resources. Current characterizations of rock permeability typically consider the influence of either pores or fractures alone.
Minghui Li, Banghong Zhang, Zhouqian Wu, Shaochen Luo, Jun Lu, Dongming Zhang, Heping Xie   +6 more
doaj   +1 more source

Microstructure-Based Modeling of Complex Permeability Spectra of Polycrystalline Ferrites

In the modeling of complex initial permeability of polycrystalline ferrites the definite sample is characterized with its microstructure: the average grain size and log-normal distribution of sizes. Grains are assumed as statistically independent objects
Jankovskis, Jānis
core  

Regulated Ion‐Diffusion Hydrogels for Subtle and Multimodal Temperature‐Strain Sensing in Wound Monitoring

Advanced Functional Materials, EarlyView.
A soft, dual‐channel hydrogel patch enables simultaneous detection of wound temperature and strain by integrating ion‐diffusion‐mediated thermoelectric and resistive sensing. The conformal design maintains stable performance during motion, capturing subtle inflammatory and mechanical changes for continuous wound monitoring.
Yu Fang, Xinglong Pan, Zhiwei Li, Wanheng Lu, Chang Liu, Yi Zhou, Guo Tian, Ghim Wei Ho   +7 more
wiley   +1 more source