Results 61 to 70 of about 208,251 (274)

Performance enhancement of polysiloxane-based nanocomposite TENGs through optimized MWCNT concentration

Frontiers in Chemistry
IntroductionThis study examines the effect of multi-walled carbon nanotube (MWCNT) loading on the dielectric behavior and triboelectric performance of polysiloxane (PS)-based nanocomposites for high-efficiency triboelectric nanogenerators (TENGs ...
Talia Tene, Orkhan Gulahmadov, Orkhan Gulahmadov, Lala Gahramanli, Mustafa Muradov, Nahida Musayeva, Stefano Bellucci, Christos Trapalis, Gabriela Tubon-Usca, Carlos Ramiro Peñafiel-Ojeda, Cristian Vacacela Gomez, Cristian Vacacela Gomez   +11 more
doaj   +1 more source

Group-IV midinfrared plasmonics [PDF]

, 2015
The use of heavily doped semiconductors to achieve plasma frequencies in the mid-IR has been recently proposed as a promising way to obtain high-quality and tunable plasmonic materials. We introduce a plasmonic platform based on epitaxial n-type Ge grown
Baldassarre, Leonetta, Biagioni, Paolo, Calandrini, Eugenio, Frigerio, Jacopo, Gallacher, Kevin, Giliberti, Valeria, Isella, Giovanni, Millar, Ross W., Ortolani, Michele, Paul, Douglas J., Sakat, Emilie, Samarelli, Antonio   +11 more
core   +4 more sources

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source

Detecting adulteration in mustard oil using low-frequency dielectric spectroscopy

Research in Agricultural Engineering
This paper presents a dielectric spectroscopy approach for analysing the quality of food products. This study aimed to detect the adulteration in mustard oil using dielectric spectroscopy in the 1 to 10 MHz frequency range at a temperature of 30 to 50 °C.
Venkatesh Mishra, Satyendra Pratap Singh, Sumit Kaur Bhatia, Vishal Singh Chandel, Rajiv Manohar   +4 more
doaj   +1 more source

Non-linear dielectric spectroscopy of microbiological suspensions

BioMedical Engineering OnLine, 2009
Background Non-linear dielectric spectroscopy (NLDS) of microorganism was characterized by the generation of harmonics in the polarization current when a microorganism suspension was exposed to a sinusoidal electric field.
Felice Carmelo J, Treo Ernesto F
doaj   +1 more source

Investigating the low-temperature properties of oil by the method of dielectric spectroscopy

Известия высших учебных заведений: Нефть и газ, 2022
The article is devoted to the possibility of using the dielectric spectroscopy method for assessing the low-temperature properties of oil. For 25 samples of oil in the fields of Tyumen region the physical and chemical characteristics have been determined,
M. G. Sheveleva, L. V. Taranova, S. G. Agaev   +2 more
doaj   +1 more source

Glass transition and alpha-relaxation dynamics of thin films of labeled polystyrene

, 2008
The glass transition temperature and relaxation dynamics of the segmental motions of thin films of polystyrene labeled with a dye, 4-[N-ethyl-N-(hydroxyethyl)]amino-4-nitraozobenzene (Disperse Red 1, DR1) are investigated using dielectric measurements ...
A. Dhinojwala, G. S. Fulcher, H. Vogel, John M. Torkelson, Koji Fukao, Linda J. Broadbelt, Rodney D. Priestley   +6 more
core   +1 more source

High-frequency dielectric spectroscopy of batio3 core - silica shell nanocomposites: Problem of interdiffusion [PDF]

, 2011
Three types of BaTiO3 core - amorphous nano-shell composite ceramics were processed from the same core-shell powder by standard sintering, spark-plasma sintering and two-step sintering techniques and characterized by XRD, HRSEM and broad-band dielectric ...
Bovtun, V., Chung, U-C., Elissalde, C., Estournes, C., Kempa, M., Maglione, M., Michau, D., Nuzhnyy, D., Petzelt, J., Savinov, M.   +9 more
core   +4 more sources

Engineered Mycelial Scaffolds With Tunable Ultraviolet Protection, Wettability, Thermal Stability, and Spatial Mechanics

Advanced Engineering Materials, EarlyView.
Fungal mycelia grown into biodegradable scaffolds and infused with titania nanoparticles show enhanced ultraviolet shielding, thermal protection, and surface nonwettability. Properties were tuned by drying methods, revealing structure–function relationships.
Juwon S. Afolayan, Xin Zhang, Carole C. Perry   +2 more
wiley   +1 more source

Evaluation of Dielectric Spectroscopy in Fusion with Vis-SWNIR Spectroscopy for the Measurement of Sugar Concentration in Sugarcane Stalk Samples [PDF]

Journal of Agricultural Machinery
IntroductionThe development of portable devices for real-time quality assessment of sugarcane is an essential necessity in the agricultural and industrial technology of sugarcane production and processing.
M. Naderi-Boldaji, M. Tohidi, M. Ghasemi-Varnamkhasti   +2 more
doaj   +1 more source