scholarly journals Effect of bacterial adsorption on low frequency electrical properties of clean quartz sands and iron-oxide coated sands

2009 ◽  
Vol 36 (4) ◽  
Author(s):  
Gamal Abdel Aal ◽  
Estella Atekwana ◽  
Sylvia Radzikowski ◽  
Silvia Rossbach
Keyword(s):  
Iron Oxide ◽  
Electrical Properties ◽  
Low Frequency ◽  
Quartz Sands ◽  
Bacterial Adsorption

Determination of Electric and Magnetic Properties of Commercial LTCC Soft Ferrite Material

2011 ◽  
Vol 8 (1) ◽  
pp. 1-9 ◽  
Author(s):  
Nelu Blaž ◽  
Andrea Marić ◽  
Goran Radosavljević ◽  
Nebojša Mitrović ◽  
Ibrahim Atassi ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Low Frequency ◽  
Hysteresis Loops ◽  
Frequency Range ◽  
Dispersion Parameters ◽  
Simple Method ◽  
Component Design ◽  
Microwave Engineering ◽  
Characterization Procedure

This paper offers an effective, accurate, and simple method for permittivity and permeability determination of an LTCC (low temperature cofired ceramic) ferrite sample. The presented research can be of importance in the fields of ferrite component design and application, as well as for RF and microwave engineering. The characterization sample is a stack of LTCC tapes forming a toroid. Commercially available ferrite tape ESL 40012 was used and standard LTCC processing was applied for the sample fabrication. For the first time, the electrical properties of a ferrite toroid sample of ESL 40012 LTCC ferrite tape is presented at various frequencies. The electrical properties of LTCC ferrite materials, permittivity and specific resistivity, are shown in a frequency range from 10 kHz to 1 MHz using the capacitive method. The hysteresis properties of this material are also determined. B-H hysteresis loops were measured applying a maximum excitation of 2 kA/m and frequencies of 50 Hz, 500 Hz, and 1000 Hz. Permeability is determined in the frequency range from 10 kHz to 1 GHz and a characterization procedure is divided in two segments, for low and high frequencies. Low frequency measurements (from 10 kHz to 1 MHz) are performed using LCZ meter and discrete turns of wire, while a short coaxial sample holder and vector network analyzer were used for the higher frequency range (from 300 kHz to 1 GHz). In addition, another important factor required for the practical design of devices is presented, the temperature variation of the permeability dispersion parameters.

scholarly journals Penetration Pathways Induced by Low-Frequency Sonophoresis with Physical and Chemical Enhancers: Iron Oxide Nanoparticles versus Lanthanum Nitrates

2010 ◽  
Vol 130 (4) ◽  
pp. 1063-1072 ◽  
Author(s):  
Sang Eun Lee ◽  
Ki Ju Choi ◽  
Gopinathan K. Menon ◽  
Hyun Jung Kim ◽  
Eung Ho Choi ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Low Frequency ◽  
Oxide Nanoparticles ◽  
Chemical Enhancers ◽  
Physical And Chemical

Optical and Electrical Properties of Ar and H$_2$ Plasmas Generated by Using a Low-frequency (60 Hz) Power Source

2015 ◽  
Vol 65 (1) ◽  
pp. 71-75
Author(s):  
Jong-Goo BHAK* ◽  
Gwang Hyun KIM ◽  
Yeong Un KIM ◽  
Seung Hwan AN ◽  
Yong Jin LEE ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Low Frequency ◽  
Power Source ◽  
Optical And Electrical Properties

scholarly journals Low-Frequency Electrical Properties of Polycrystalline Saline Ice and Salt Hydrates

2008 ◽  
Vol 112 (48) ◽  
pp. 15382-15390 ◽  
Author(s):  
Robert E. Grimm ◽  
David E. Stillman ◽  
Steven F. Dec ◽  
Mark A. Bullock
Keyword(s):  
Electrical Properties ◽  
Low Frequency ◽  
Salt Hydrates

Iron- and iron oxide-filled multi-walled carbon nanotubes: Electrical properties and memory devices

2007 ◽  
Vol 444 (4-6) ◽  
pp. 304-308 ◽  
Author(s):  
Carlos E. Cava ◽  
Ricardo Possagno ◽  
Mariane C. Schnitzler ◽  
Paulo C. Roman ◽  
Marcela M. Oliveira ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Iron Oxide ◽  
Electrical Properties ◽  
Memory Devices ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Structure and electrical properties of a-C∶H films deposited from CH4 decomposition in a low frequency discharge

1996 ◽  
Vol 1 (2) ◽  
pp. 153-172
Author(s):  
Y. Segui ◽  
B. Mebarki ◽  
C. Laurent ◽  
A. Bennani
Keyword(s):  
Electrical Properties ◽  
Low Frequency

Low-frequency electrical properties of non-crosslinked epoxide materials

1999 ◽  
Author(s):  
A. Blahut ◽  
Wiktor L. Szymanski ◽  
Aleksander B. Szymanski
Keyword(s):  
Electrical Properties ◽  
Low Frequency
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