Results 61 to 70 of about 1,503,340 (327)

A Novel Single-Fed Dual-Band Dual-Circularly Polarized Dielectric Resonator Antenna for 5G Sub-6GHz Applications [PDF]

, 2022
Javed Iqbal, Usman Illahi, Muhammad Abbas Khan, Abdul Rauf, Esraa Mousa Ali, Inam Bari, Haider Ali, Muhammad Amir Khan, Mohammad Alibakhshikenari, Mariana Dalarsson   +9 more
openalex   +1 more source

Influence of Temperature on Scratch and Wear Properties of Technical Thermoplastics: Implications for Material Selection

Advanced Engineering Materials, EarlyView.
The share of technical thermoplastics is expected to grow further in the e‐mobility segment. In this study, a detailed temperature‐based tribological characterization of technical thermoplastics is performed. The tribological properties are discussed in terms of the dynamic mechanical properties of polymers at different ambient temperatures. A proof of
Harsha Raghuram, Thomas Koch, Vasiliki-Maria Archodoulaki   +2 more
wiley   +1 more source

Enhanced dielectric response and non-Ohmic properties of Ge-doped CaTiO3/CaCu3Ti4O12

Journal of Asian Ceramic Societies, 2022
We present a method for increasing the dielectric constant of CaTiO3/CaCu3Ti4O12 (CTO/CCTO) composites and retaining a low-loss tangent (tanδ) by doping with Ge dopant.
Jirata Prachamon, Jakkree Boonlakhorn, Narong Chanlek, Nutthakritta Phromviyo, Viyada Harnchana, Pornjuk Srepusharawoot, Ekaphan Swatsitang, Prasit Thongbai   +7 more
doaj   +1 more source

Nontrivial dependence of dielectric stiffness and SHG on dc bias in relaxors and dipole glasses

, 2004
Dielectric permittivity and Second Harmonic Generation (SHG) studies in the field-cooled mode show a linear dependence of dielectric stiffness (inverse dielectric permittivity) on dc bias in PMN-PT crystals and SHG intensity in KTaO$_{3}$:Li at small Li ...
A. S. Emelyanov, Chu F., Colla E. V., Eden S., Emel’yanov S. M., Eugene V. Colla, I. P. Raevski, J-L. Dellis, L. Jastrabik, M. El Marssi, Patashinski A. Z., Raevski I. P., S. A. Prosandeev, S. E. Kapphan, Sakudo T., Vaks V. G.   +15 more
core   +1 more source

Laser Metal Deposited Ti4822 Hollow Pipe: Experimental and Computational Modelling Study

Advanced Engineering Materials, EarlyView.
Laser metal deposition (LMD) of a crack‐free built Ti4822 alloys is challenging. This article reports outstanding characteristics of a hollow pipe that is built with LMD technology when a predicted, nontransformation substrate temperature of 800 °C is used.
Sadiq A. Raji, Monnamme Tlotleng, Samuel Skhosane, Lehlogonolo R. Kanyane, Abimbola P. I. Popoola, Sisa L. Pityana   +5 more
wiley   +1 more source

Universal Electromagnetic Waves in Dielectric

, 2008
The dielectric susceptibility of a wide class of dielectric materials follows, over extended frequency ranges, a fractional power-law frequency dependence that is called the "universal" response.
Carpinteri A, Debye P, Debye P, Gorenflo R, Hilfer R, Jonscher A K, Jonscher A K, Kilbas A A, Kittel C, Metzler R, Nigmatullin R R, Ramakrishnan T V, Samko S G, Tarasov V E, Tarasov V E, Vasily E Tarasov, Zaslavsky G M   +16 more
core   +3 more sources

Dielectric properties of hexagonal boron nitride and transition metal dichalcogenides: from monolayer to bulk

npj 2D Materials and Applications, 2018
Hexagonal boron nitride (h-BN) and semiconducting transition metal dichalcogenides (TMDs) promise greatly improved electrostatic control in future scaled electronic devices. To quantify the prospects of these materials in devices, we calculate the out-of-
A. Laturia, M. L. Van de Put, W. Vandenberghe   +2 more
semanticscholar   +1 more source

Magnetoactive Metamaterials: A State‐of‐the‐Art Review

Advanced Engineering Materials, EarlyView.
Magnetoactive metamaterials combine magnetoactive composites with architected metastructures to enable contactless, tunable control of mechanical, acoustic, and elastic properties. This review highlights recent advances in their design, fabrication, and applications in soft robotics, biomedical devices, and adaptive structures and outlines future ...
Seyyedmohammad Aghamiri, Ramin Sedaghati
wiley   +1 more source

True Dielectric and Ideal Conductor in Theory of the Dielectric Function for Coulomb System

, 2009
On the basis of the exact relations the general formula for the static dielectric permittivity e(q,0) for Coulomb system is found in the region of small wave vectors q. The obtained formuladescribes the dielectric function e(q,0) of the Coulomb system in
Abrikosov A A, Adamjan V M, Alekseev V A, Bobrov V B, Bobrov V B, Bobrov V B, Dolgov O V, Fortov V E, Gorobchenko V D, Gradshtein I S, Kitznitz D A, Kitznitz D A, Kraeft W-D, Landau L D, Landau L D, Lifshits E M, March N, Perel' V I, Pines D, S A Trigger, Silin V P, Silin V P, V B Bobrov   +22 more
core   +1 more source

Cobalt Tungstate Characterization Using Matryoshka‐Structure Filter

Advanced Engineering Materials, EarlyView.
The green synthesis of cobalt tungstate (CoWO4) using natural polymerizing agents from agar–agar and commercial produces environmentally friendly materials with tunable structural and electromagnetic properties. X‐ray diffraction and Rietveld refinement correlate crystal structure with microwave transmission losses in Matryoshka‐type filters.
Amanda Gomes Barboza, Camila da Silva Cavalcanti, Abid Raza, Marina de Oliveira Alencar, Evanimek Bernardo Sabino da Silva, Guilherme Nunes de Melo, Marcos Tavares de Melo   +6 more
wiley   +1 more source