نتایج جستجو برای: ionized water

تعداد نتایج: 559106  

2016
Mohamed A. Abouelatta

This paper concerns the influence of moving an auxiliary limiting cylinder in X-Y directions on the electrostatic field and corona onset voltage of the dual electrode system employed in the electrostatic filtration process resulting in a “Tri-electrode” system. The Tri-electrode system is applied in order to control the field around the ionized wire and on the ground plate. Accurate calculation...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2010
Anna Rychkova Spyridon Vicatos Arieh Warshel

The understanding of the mechanism of insertion of transmembrane (TM) helixes through the translocon presents a major open challenge. Although the experimental information about the partition of the inserted helices between the membrane and the solution contains crucial information about this process, it is not clear how to extract this information. In particular, it is not clear how to rationa...

Journal: :Circulation research 1962
H F HARDMAN

• The purpose of this paper is to identify the active molecular species of a drug, theophylline, which exists simultaneously in the ionized and nonionized states at pH 7.4. Previous studies by Hardman et al. and Baird and Hardman have related changes in cardiac function to the concentration of nonionized or ionized drugs in the extracellular fluid perfusing isolated hearts. Such correlations do...

Journal: :Analytical chemistry 2002
Tiina J Kauppila Tiia Kuuranne Eduardo C Meurer Marcos N Eberlin Tapio Kotiaho Risto Kostiainen

The ionization mechanism in dopant-assisted atmospheric pressure photoionization and the effect of solvent on the ionization efficiency was studied using 7 naphthalenes and 13 different solvent systems. The ionization efficiency was 1-2 orders of magnitude higher with dopant than without, indicating that the photoionization of the dopant initiates the ionization process. In positive ion mode, t...

Journal: :Agronomy 2022

Water ionization is an efficient physical water treatment technology, and crop nutrient use efficiencies can be improved using ionized for irrigation. In order to explore the effect of on soil nitrification nitrifying microorganisms, we conducted a laboratory incubation experiment with addition ordinary under different contents (equal 30%, 60%, 100% 175% field capacity, θFC). During incubation,...

Journal: :The Science of the total environment 2006
R A Alvarez-Puebla C Valenzuela-Calahorro J J Garrido

The ubiquitous presence of humic substances (HS), combined with their ability to provide multiple sites for chemical reaction, makes them relevant to numerous biogeochemical processes such as mineral weathering, nutrient bioavailability, and contaminant transport. The reactivity of HS depends on their functional group chemistry and microstructure, which are in turn influenced by the composition...

Journal: :Faraday discussions 2011
Kirill Khistyaev Ksenia B Bravaya Eugene Kamarchik Oleg Kostko Musahid Ahmed Anna I Krylov

A combined theoretical and experimental study of the effect of microhydration on ionization energies (IEs) of thymine is presented. The experimental IEs are derived from photoionization efficiency curves recorded using tunable synchrotron VUV radiation. The onsets of the PIE curves are 8.85 +/- 0.05, 8.60 +/- 0.05, 8.55 +/- 0.05, and 8.40 +/- 0.05 eV for thymine, thymine mono-, di-, and trihydr...

Journal: :Critical care medicine 2011
Moritoki Egi Inbyung Kim Alistair Nichol Edward Stachowski Craig J French Graeme K Hart Colin Hegarty Michael Bailey Rinaldo Bellomo

OBJECTIVE To assess the association of abnormalities of ionized calcium levels with mortality in a heterogeneous cohort of critically ill patients. DESIGN Retrospective, combined clinical and biochemical study. SETTING Four combined medical/surgical intensive care units. PATIENTS Cohort of 7,024 adult critically ill patients. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS We studie...

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