Results 21 to 30 of about 24,359 (261)

Determination of Dielectric Losses in a Power Transformer

Energies, 2022
The article presents a method of determining dielectric losses that occur in insulating materials in a power transformer. These losses depend mainly on the electric field stress, pulsation, dielectric loss coefficient, and electrical permittivity of ...
Zbigniew Nadolny
doaj   +1 more source

Determination of Soil Pore Water Salinity Using an FDR Sensor Working at Various Frequencies up to 500 MHz

Sensors, 2012
This paper presents the application of a frequency-domain reflectometry (FDR) sensor designed for soil salinity assessment of sandy mineral soils in a wide range of soil moisture and bulk electrical conductivity, through the determination of soil complex
Andrzej Wilczek, Grzegorz Janik, Viliam Pichler, Jolanta Cieśla, Wojciech Skierucha, Agnieszka Szypłowska   +5 more
doaj   +1 more source

Calibration of capacitive soil moisture sensor based on random forest

地质科技通报, 2023
Objective Soil moisture information crucial for various applications, such as natural ecological restoration, farmland irrigation management, and soil engineering construction.
Zheng Wang, Shun Hu, Rui Ma, Ziyong Sun, Mengyan Ge, Junyou Wang, Shufeng Qiao   +6 more
doaj   +1 more source

Intrinsic Enhancement of Dielectric Permittivity in (Nb + In) co-doped TiO2 single crystals

Scientific Reports, 2017
The development of dielectric materials with colossal permittivity is important for the miniaturization of electronic devices and fabrication of high-density energy-storage devices.
Masaru Kawarasaki, Kenji Tanabe, Ichiro Terasaki, Yasuhiro Fujii, Hiroki Taniguchi   +4 more
doaj   +1 more source

Experimental Study on the Variation of Soil Dielectric Permittivity under the Influence of Soil Compaction and Water Content

Geofluids, 2022
The dielectric permittivity of common soils is mainly controlled by water content and porosity, while the latter is closely related to the characteristics of compaction.
Jun Hu, Xinbin Wang, Fujun Zhang, Yuanke Zhao   +3 more
doaj   +1 more source

Correlation between Electron Mobility and Static Dielectric Permittivity of n-InSb

Open Physics, 2015
Direct analytical calculations of the static dielectric permittivity-dependent electron mobility due to different elastic scattering mechanisms for n-type InSb were carried out.
Alfaramawi K.
doaj   +1 more source

Colossal permittivity and multiple effects in (Zn + Ta) codoped TiO2 ceramics

Journal of Asian Ceramic Societies, 2020
Colossal permittivity (CP) materials are potential for the important applications of device miniaturization and energy storage. In this work, (Zn2+1/3Ta5+2/3)xTi1-xO2 ceramics were fabricated by conventional solid-state method.
Jiangtao Fan, Tiantian Yang, Zhenzhu Cao
doaj   +1 more source

Petrophysical Relationship between Soil Moisture Content and Dielectric Permittivity for Wastewater Landfill Contaminated in Cherang Hangus Soil Using GPR [PDF]

E3S Web of Conferences
This study focuses on the dielectric permittivity of Cherang Hangus soil, a laterite type known for its water retention and landfill liner applications. By leveraging GPR data alongside empirical models, researchers aim to understand how moisture content
Umar Mohd Syuib, Ghazali Mimi Diana, Samad Abd Manan, Zhainon Othman, Zainuddin Khairulazhar, Marzuki Faradina   +5 more
doaj   +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 Dielectric Loaded Resonator for the Measurement of the Complex Permittivity of Dielectric Substrates

IEEE Transactions on Instrumentation and Measurement, 2023
A new configuration of dielectric-loaded resonator (DR), particularly versatile for the complex permittivity measurement of substrates for microwave circuits, even in the presence of back metal plates, is shown here. To test this technique in a wide interval of the values of the complex permittivity, the versatility of 3-D printing is exploited to ...
Andrea Alimenti, Erika Pittella, Kostiantyn Torokhtii, Nicola Pompeo, Emanuele Piuzzi, Enrico Silva   +5 more
openaire   +2 more sources