نتایج جستجو برای: different electrodes

تعداد نتایج: 1796391  

Journal: :Cochlear implants international 2010
Adam Walkowiak Bozena Kostek Artur Lorens Anita Obrycka Arkadiusz Wasowski Henryk Skarzynski

Journal: :Microsurgery 2008
Xiaofeng Jia Gehua Zhen Adrian Puttgen Jian Zhang Tongyi Chen

Methods for long-term recording of peripheral nerve activity via intrafascicular electrodes have not been optimized. We compared the long-term functionality of custom-made 95%Pt/5%Ir intrafascicular electrodes containing a proximal spring-like structure to that of conventional straight electrodes. The modified electrode was implanted into the sciatic nerve fascicle of a random hind limb in 14 r...

Journal: :Clinical chemistry 1996
N N Rehak S A Cecco J E Niemela E N Hristova R J Elin

We studied the stability and linearity of the AVL and Nova Mg and Ca ion-selective electrodes and the relation between the ionized Ca and ionized Mg results reported by each analyzer. The response of the electrodes to different concentrations of Mg and Ca was determined for saline solutions, aqueous solutions, and serum samples. The electrodes from both manufacturers demonstrated acceptable sta...

2004
Nicholas F. Szabo Prabir K. Dutta

The mixed potential response for NO and NO2 from two different oxide electrodes on yttria-stabilized zirconia (YSZ) was examined at 500 jC. The two electrodes were La0.6Sr0.4Fe0.8Co0.2O3 (LSFCO) and Cr2O3. Sensors made with LSFCO electrodes had consistently lower sensitivity towards NOx as compared to those with Cr2O3 and the focus of this paper is to understand the fundamental reasons for the ...

2017
Marcel Młyńczak Marek Żyliński Daniel Janczak Małgorzata Jakubowska Wiktor Niewiadomski Gerard Cybulski

Typical disposable Ag/AgCl electrodes have potential drawbacks from a long-term measurement perspective. Particularly, they can cause an allergic reaction of the skin and can detach in case of sweating during physical activity or sleep. As they are disposable, the electrodes cannot be removed for cleaning. They must be connected to a device with separate cables, which adds to the wearer’s disco...

2007
Akira Kitani Tetsuro Akashi Kenji Sugimoto

Electrocatalytic oxidation of methanol on Pt modified polyaniline electrodes was investigated with the aim of developing highly active composite electrodes for direct methanol fuel cells. Cyclic voltammetry and chronoamperometry were used to evaluate the catalytic activity in sulfuric acid solutions containing methanol. Pt / polyaniline modified carbon electrodes showed higher catalytic activit...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2009
Mohsen M Zareh

A pH electrode for the selective determination of H+ was introduced. Both phosphorated calix[6]arene and a N,N'-bisethoxycarbonyl-1,10-diaza-4,7,13,16-tetraoxacyclo-octadecane (DZCE) were used as new H+-ionophores. The calibration graphs of the obtained electrodes exhibits satisfactory Nernstian slopes. The electrodes were compared to blank membranes (without any ionophoric substances) for the ...

2015
Nika ZOLFAGHARI Shahini SIRIKANTHARAJAH Mohsen SHAFEIE Kristiina M. Valter MCCONVILLE

The electrocardiogram (ECG) is one of the most important signals acquired from the body, as it serves as the immediate source of information relating to heart performance. Hence, a lot of research has gone into various types of ECG acquisition methods and systems. With the numerous methods and systems available at hand, it is important to compare, contrast, and evaluate the existing techniques....

2016
Conor O’Mahony Ruth Houlihan Konstantin Grygoryev Zhenfei Ning John Williams Tom Moore

We analysed the use of microneedle-based electrodes to enhance electroporation of mouse testis with DNA vectors for production of transgenic mice. Different microneedle formats were developed and tested, and we ultimately used electrodes based on arrays of 500 μm tall microneedles. In a series of experiments involving injection of a DNA vector expressing Green Fluorescent Protein (GFP) and elec...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2009
Toshio Nakamura

The potentiometric response of electrodes is described, including: (1) Nernstian response to activity change due to an altered concentration of the analyte ion, and (2) Nernstian response to activity change caused by different solvents. In order to ensure the reliability of the data obtained in this study, the following three steps were taken: (i) a comparison of electrode potentials between a ...

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