نتایج جستجو برای: electric conductivity measurement

تعداد نتایج: 618366  

2009
U. Katscher T. Voigt

Introduction: The electric conductivity can potentially be used as diagnostic information due to its ability to reflect the grade of tissue damage (see, e.g., [1]). In its general form, the conductivity is given by a rank-2 tensor, including anisotropic cases of conductivity. In vivo, anisotropic conductivities can be found in tissue with preferred cell direction, e.g., in muscles and nerves [2...

Journal: :Nano letters 2011
Yoshiaki Sato Kazuyuki Takai Toshiaki Enoki

We investigate the chemisorptions of oxygen molecules on bilayer graphene (BLG) and its electrically modified charge-doping effect using conductivity measurement of the field effect transistor channeled with BLG. We demonstrate that the change of the Fermi level by manipulating the gate electric field significantly affects not only the rate of molecular adsorption but also the carrier-scatterin...

Journal: :Biomicrofluidics 2010
Heng Ban Bochuan Lin Zhuorui Song

The effect of an electrical double layer (EDL) on microchannel flow has been studied widely, and a constant bulk electric conductivity is often used in calculations of flow rate or pressure drop. In our experimental study of pressure-driven micropipette flows, the pipette diameter is on the same order of magnitude as the Debye length. The overlapping EDL resulted in a much higher electric condu...

2013
Hechang Lei Kefeng Wang Milinda Abeykoon Emil S. Bozin

We have synthesized a new layered BiS2-based compound SrFBiS2. This compound has similar structure to BiS2. It is built up by stacking up SrF layers and NaCl-type BiS2 layers alternatively along the c axis. Electric transport measurement indicates that SrFBiS2 is a semiconductor. Thermal transport measurement shows that SrFBiS2 has a small thermal conductivity and large Seebeck coefficient. Fir...

2013
Selma Corovic Igor Lackovic Primoz Sustaric Tomaz Sustar Tomaz Rodic Damijan Miklavcic

BACKGROUND Electroporation based therapies and treatments (e.g. electrochemotherapy, gene electrotransfer for gene therapy and DNA vaccination, tissue ablation with irreversible electroporation and transdermal drug delivery) require a precise prediction of the therapy or treatment outcome by a personalized treatment planning procedure. Numerical modeling of local electric field distribution wit...

Journal: :BioMedical Engineering OnLine 2006
Manuchehr Soleimani

BACKGROUND This paper reports a simple 2-D system for electrical impedance tomography EIT, which works efficiently and is low cost. The system has been developed in the Sharif University of Technology Tehran-Iran (for the author's MSc Project). METHODS The EIT system consists of a PC in which an I/O card is installed with an external current generator, a multiplexer, a power supply and a phan...

2006
Bassam A. Abu-Nabah Peter B. Nagy

Because of their frequency-dependent penetration depth, eddy current measurements are capable of mapping the near-surface depth profile of the electric conductivity. This technique can be used to nondestructively characterize the subsurface residual stress distribution in certain types of shot-peened metals, e.g., in nickel-base superalloys. In this paper, a highly convergent iterative inversio...

2017
Amir Khorasani Seyed Mohammad Firoozabadi Zeinab Shankayi

Article type: Original Article Introduction: Irreversible electroporation (IRE) is a process in which the membrane of the cancer cells are irreversibly damaged with the use of high-intensity electric pulses, which in turn leads to cell death. The IRE is a non-thermal way to ablate the cancer cells. This process relies on the distribution of the electric field, which affects the pulse amplitude,...

Journal: :Advanced materials 2015
Hyejin Jang Joshua D Wood Christopher R Ryder Mark C Hersam David G Cahill

The anisotropic thermal conductivity of passivated black phosphorus (BP), a reactive two-dimensional material with strong in-plane anisotropy, is ascertained. The room-temperature thermal conductivity for three crystalline axes of exfoliated BP is measured by time-domain thermo-reflectance. The thermal conductivity along the zigzag direction is ≈2.5 times higher than that of the armchair direct...

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