Results 11 to 20 of about 192,119 (253)

Complex effective permittivity of a lossy composite material [PDF]

, 1996
In recent work, boundary integral equations and finite elements were used to study the (real) effective permittivity for two-component dense composite materials in the quasistatic limit.
Beroual, Abderrahmane, Brosseau, Christian, Krähenbühl, Laurent, Sareni, Bruno   +3 more
core   +3 more sources

Transmission Studies of Left-handed Materials

, 2001
Left-handed materials are studied numerically using an improved version of the transfer-matrix method. The transmission, reflection, the phase of the reflection and the absorption are calculated and compared with experiments for both single split-ring ...
C. M. Soukoulis, D.F. Sievenpiper, D.R. Smith, D.R. Smith, E. Özbay, I. El-Kady, J.B. Pendry, J.B. Pendry, J.B. Pendry, J.B. Pendry, J.B. Pendry, J.B. Pendry, J.B. Pendry, J.B. Pendry, J.D. Joannopoulos, M. Sigalas, P. Markoš, R.A. Shelby, R.A. Shelby, V.G. Veselago   +19 more
core   +1 more source

A Compact Spin‐Coated Graphene UWB Antenna for Breast Tumor Detection

Advanced Engineering Materials, EarlyView.
A compact, spin‐coated graphene ultra‐wideband patch antenna designed for breast tumor detection, capable of distinguishing between malignant and benign tumors. This innovative antenna can serve as an effective initial screening tool, particularly in resource‐limited settings such as rural areas, where access to advanced medical equipment like MRI and ...
Raja Rashidul Hasan, Shuvra Saha, Sumit Hassan Eshan, Rinku Basak, Md. Nahian Al Subri Ivan, Ahmed Murtuza Saleque, Raja Tariqul Hasan Tusher, Sadia Zabin, Md. Abdur Rahman, Yuen Hong Tsang   +9 more
wiley   +1 more source

A novel Multi-permittivity Cylindrical Dielectric Resonator Antenna for Wideband Applications [PDF]

, 2014
In this paper, a novel multi-permittivity cylindrical dielectric resonator antenna for wideband application is presented. The multi-permittivity cylinder is formed by combining two different permittivity material sectors in such a way that each sector ...
Abdullah, M. Z., Ahmad, Z. A., Ain, M. F., Mahyuddin, N. M., Othman, M., Ullah, U., Zubir, I.   +6 more
core   +1 more source

Powder Optimization Strategies for Binder Jetting Printing of BaTiO3 and Ba0,6Sr0,4TiO3 Ceramics

Advanced Engineering Materials, EarlyView.
Powder optimization is investigated to enable binder jetting of BaTiO3 and Ba0.6Sr0.4TiO3 ferroelectric ceramics. The antagonistic relationship between flowability and binder compatibility is addressed through binder impregnation of granulated powders and fumed silica addition to fine powders.
Fanny Pruvost, Lionel Presmanes, Soléna Colin, Marie Vidal, Sophie Guillemet‐Fritsch   +4 more
wiley   +1 more source

Determination of Effective Permittivity and Permeability of Metamaterials from Reflection and Transmission Coefficients

, 2002
We analyze the reflection and transmission coefficients calculated from transfer matrix simulations on finite lenghts of electromagnetic metamaterials, to determine the effective permittivity and permeability.
A. M. Nicholson, B. Gralak, C. M. Soukoulis, D. R. Smith, D. R. Smith, D. R. Smith, F. Mariotte, H. Kosaka, J. B. Pendry, J. B. Pendry, J. B. Pendry, M. Notomi, P. Markoš, P. Markoš, P. Markoš, R. A. Shelby, S. Schultz, V. G. Veselago, W. B. Weir   +18 more
core   +1 more source

Enhanced Strength and Corrosion Resistance of Ti‐13Nb‐12Ta‐10Zr‐4Sn Alloy by Aging Treatment

Advanced Engineering Materials, EarlyView.
This work systematically investigates the effect of aging treatment on mechanical properties and corrosion behavior of vacuum arc‐melted Ti‐13Nb‐12Ta‐10Zr‐4Sn alloy. Owing to the increased α″ martensite, strength and corrosion resistance were significantly enhanced by aging treatment.
Yuhua Li, Rong Zhao, Qian Zhang, Haojie Wang, Yujing Liu, Lai‐Chang Zhang   +5 more
wiley   +1 more source

Exploring Dipolar Dynamics and Ionic Transport in Metal‐Organic Frameworks: Experimental and Theoretical Insights

Advanced Functional Materials, EarlyView.
In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund, Arthur Schulz, Peter Lunkenheimer, Maryana Kraft, Thomas Bergler, Harald Oberhofer, Dirk Volkmer   +6 more
wiley   +1 more source

Accurate Modelling of Left-Handed Metamaterials Using Finite-Difference Time-Domain Method with Spatial Averaging at the Boundaries

, 2007
The accuracy of finite-difference time-domain (FDTD) modelling of left-handed metamaterials (LHMs) is dramatically improved by using an averaging technique along the boundaries of LHM slabs. The material frequency dispersion of LHMs is taken into account
Goorjian P M, Hildebrand F B, Huang X, Kashiwa T, Pavel Belov, Taflove A, Yan Zhao, Yang Hao, Zhao Y, Zhao Y Belov P Hao Y   +9 more
core   +1 more source

Dielectric properties of thin insulating layers measured by Electrostatic Force Microscopy [PDF]

, 2010
In order to measure the dielectric permittivity of thin insulting layers, we developed a method based on electrostatic force microscopy (EFM) experiments coupled with numerical simulations.
Alegría, Angel, Arinero, Richard, Colmenero, Juan, De Oteyza, Dimas G., Lévêque, Gérard, Ramonda, Michel, Riedel, Clément, Schwartz, Gustavo Ariel, Tordjeman, Philippe   +8 more
core   +2 more sources