نتایج جستجو برای: neodymium compounds

تعداد نتایج: 228697  

2012
Balasaheb N. Kokare Ganesh S. Kamble Balasaheb M. Sargar Mansing A. Anuse

The liquid-liquid extraction of neodymium(III) from succinate media (0.06 M) has been studied at pH 6.0 with the solution of 0.1 M of N-n-octylaniline in xylene when equilibrium is maintained for 5 min. The back-extraction of neodymium(III) has been performed by using 0.1 M HClO₄. The effect of various parameters, such as pH, equilibrium time, extractant concentration, stripping agents, organic...

2004
Kristen James

Monte Amiata is a recently extinct volcano that produced trachydacites and a few small olivine latite flows. The Amiata suite showed crustal strontium, neodymium, and lead isotopic signatures. Sr/Sr ratio values ranged from 0.712447 to 0.713068 and Nd/Nd ratios ranged from 0.512094 to 0.512203. Pb/Pb values ranged from 15.6694 to 16.2330 and Pb/Pb ratios ranged from 18.7125 to 19.0882. The oliv...

2017
M. Grenier C. Jeandel S. Cravatte M elanie Grenier Catherine Jeandel Sophie Cravatte

The southwestern tropical Pacific, part of a major pathway for waters feeding the Equatorial Undercurrent, is a region of important geochemical enrichment through land-ocean boundary exchange. Here we develop an original method based on the coupling between dynamical modeling and geochemical tracer data to identify regions of enrichment along the water pathways from the subtropics to the equato...

Journal: :Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2006
Zhijun Wang Binsheng Yang

In 0.01 M 4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid (Hepes), pH 7.4 and room temperature, the binding of neodymium to N,N'-ethylenebis[2-(o-hydroxyphenolic)glycine] (EHPG), or N,N'-di(2-hydroxybenzyl)ethylenediamine-N,N' diacetic acid (HBED) had been studied from 210 to 330 nm by means of difference UV spectra. Two peaks at 240 and 292 nm appear in difference UV spectra after neodymium...

Journal: :Izvestiya Vuzov. Poroshkovaya Metallurgiya i Funktsional’nye Pokrytiya (Proceedings of Higher Schools. Powder Metallurgy аnd Functional Coatings) 2015

Journal: :Neurosurgery 2016
Roberto Diaz Michael E Ivan Simon Hanft Steve Vanni Glen Manzano Jonathan Jagid Ricardo J Komotar

ABBREVIATIONS LITT, laser interstitial therapyNd:YAG, neodymium-doped yttrium aluminum.

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2008
Shoji Kurata Haruo Hirano Masatoshi Nagai

Micromarkers with five photoluminescence colors were developed as tracers for shadowing pursuits. The markers are colorless powders with particle diameters of several tens to several hundreds of micrometers, prepared using a cryogenic sample crusher. They were visualized using red, green, yellow, magenta or cyan photoluminescence under ultraviolet light at approximately 365 nm. The markers were...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1382

‏‎the main purpose of this research was to:1.develop a coking model for thermal cracking of naphtha.2.study coke inhibition methods using different coke inhibitors.developing a coking model in naphtha cracking reactors requires a suitable model of the thermal cracking reactor based on a reliable kinetic model.to obtain reliable results all these models shall be solved simultaneously.for this pu...

Journal: :Russian Journal of Coordination Chemistry 2022

Abstract Tetranuclear hydroxo complexes [La 4 (Deta) (OH) (Tfa) 3 (DetadcH) 2 ](HTfa)(H O) 7 ( I ) and [Nd ](H n II with diethylene- N , ′-dicarbamate anions (DetadcH – are synthesized for the first time by reactions of lanthanum trifluoroacetate neodymium a solution diethylenetriamine in air under self-controlled hydrolysis conditions characterized X-ray diffraction, powder IR spectroscopy, el...

Journal: :Dermatologic clinics 1999
C M Littler

Laser emission from neodymium-doped glass was first produced nearly 40 years ago. Later, a crystal of yttrium, aluminum, and garnet (YAG) was discovered to be a better lasing host for neodymium. The Nd:YAG laser has since been used for a variety of medical applications, more recently, this instrument has been used for the purpose of damaging hair follicles to epilate unwanted hair. This article...

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