نتایج جستجو برای: ni2 supported

تعداد نتایج: 196216  

2016
Julia Ayala Hugo F. Lopez

The removal of Cd2+, Zn2+ and Ni2+ by coal bottom ash has been investigated. In single metal system, metal uptake was studied in batch adsorption experiments as a function of pH (2–3), contact time (5–180 min), initial metal concentration (50–400 mg/L), adsorbent concentration (5–40 g/L), particle size, and ionic strength (0–1 M NaCl). Removal percentages of metals ions increased with increasin...

2014
Hoda Alboghobeish Arezoo Tahmourespour Monir Doudi

BACKGROUND Pollution due to the heavy metals is a problem that may have negative consequences on the hydrosphere. One of the best procedures in removing the toxic metals from the environment is using metal resistant bacteria. RESULTS In the present study eight nickel resistant bacteria were isolated from industrial wastewaters. Three of them were selected as the most resistant based on their ...

Journal: :Journal of environmental quality 2002
K H Herrmann A Pohlmeier S Wiese N J Shah Nitzsche H Vereecken

The transport of Ni2+ ions in a column, filled with porous media, was observed in three dimensions and time by magnetic resonance imaging (MRI) in a clinical scanner. For porous media we used glass beads or quartz sand in a saturated continuous flow mode. The magnetic moment of Ni2+ decreased the T1 relaxation time of 1H in aqueous solution. This concentration-dependent effect was used by a fas...

Journal: :American journal of physiology. Gastrointestinal and liver physiology 2003
Salah A Baker Violeta Mutafova-Yambolieva Kevin Monaghan Burton Horowitz Kenton M Sanders Sang Don Koh

Enteric inhibitory responses in gastrointestinal (GI) smooth muscles involve membrane hyperpolarization that transiently reduce the excitability of GI muscles. We examined the possibility that an active repolarization mechanism participates in the restoration of resting membrane potential after fast inhibitory junction potentials (IJPs) in the murine colon. Previously, we showed these cells exp...

2015
Saralyn Stewart Jacob Bortnik

s: NI2.00003 Excitation of chirping whistler waves in a laboratory plasma Session Session NI2: Waves and Instabilities 9:30 AM–12:30 PM, Wednesday, November 18, 2015 Room: Chatham Ballroom C

2005
Y. K. Kuo K. M. Sivakumar H. C. Chen J. H. Su C. S. Lue

We present the measurements of electrical resistivity , specific heat CP , Seebeck coefficient S , as well as thermal conductivity of the Heusler compounds Ni2+xMn1−xGa from 10 to 400 K. A series of Ni2+xMn1−xGa alloys were prepared with x=0, 0.04, 0.06, 0.10, 0.14, 0.18, and 0.24 to systematically study the effect of substitution on the martensitic and ferromagnetic transitions. Unusual sharp ...

Journal: :Journal of environmental sciences 2012
X J Lee L Y Lee L P Y Foo K W Tan D G Hassell

The present work covers the preparation of carbon-based nanosorbents by ethylene decomposition on stainless steel mesh without the use of external catalyst for the treatment of water containing nickel ions (Ni2+). The reaction temperature was varied from 650 to 850 degrees C, while reaction time and ethylene to nitrogen flow ratio were maintained at 30 min and 1:1 cm3/min, respectively. Results...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 2002
Hailing Su Dmitry Sochivko Albert Becker Jian Chen Yanwen Jiang Yoel Yaari Heinz Beck

A single episode of status epilepticus (SE) causes numerous structural and functional changes in the brain that can lead to the development of a chronic epileptic condition. Most studies of this plasticity have focused on changes in excitatory and inhibitory synaptic properties. However, the intrinsic firing properties that shape the output of the neuron to a given synaptic input may also be pe...

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