نتایج جستجو برای: critical co2

تعداد نتایج: 548515  

2005

Fine roots ( 1 mm diameter) are critical in plant water and nutrient absorption, and it is important to understand how rising atmospheric CO2 will affect them as part of terrestrial ecosystem responses to global change. This study’s objective was to determine the effects of elevated CO2 on production, mortality, and standing crops of fine root length over 2 years in a free-air CO2 enrichment (F...

Journal: :journal of petroleum science and technology 2014
baolun niu ruijian deng yiqing lin xinrong wu zhang zhang

co2 injection is an effective technique for improved oil recovery in light oil reservoirs, especially for water flooding abandoned reservoirs. in this study, the lower part of es1 reservoirs in pucheng oilfield was introduced as the target reservoir. by studying the minimum miscible pressure in co2 flooding, the reservoir could achieve miscible flooding. long core displacement experiments prove...

2012
Pauline Humez Pascal Audigane Julie Lions Christophe Chiaberge Claude Guillemin

This article presents a numerical modeling application using the code TOUGHREACT of a leakage scenario occurring during a CO2 geological storage performed in the Jurassic Dogger formation in the Paris Basin. This geological formation has been intensively used for geothermal purposes and is now under consideration as a site for the French national program of reducing greenhouse gas emissions and...

2017
R. Wordsworth S. Lokshtanov

The evidence for abundant liquid water on early Mars despite 3 the faint young Sun is a long-standing problem in planetary research. Here 4 we present new ab initio spectroscopic and line-by-line climate calculations 5 of the warming potential of reduced atmospheres on early Mars. We show 6 that the strength of both CO2-H2 and CO2-CH4 collision-induced absorp7 tion (CIA) has previously been sig...

2013
Szilvia Kocsi Gabor Demeter Daniel Erces Eniko Nagy Jozsef Kaszaki Zsolt Molnar

Monitoring hypovolemia is an everyday challenge in critical care, with no consensus on the best indicator or what is the clinically relevant level of hypovolemia. The aim of this experiment was to determine how central venous oxygen saturation (ScvO2) and central venous-to-arterial carbon dioxide difference (CO2 gap) reflect hypovolemia-caused changes in the balance of oxygen delivery and consu...

2012
Joachim Krug Michael Koehl Dierk Kownatzki

UNLABELLED BACKGROUND Unmanaged or old-growth forests are of paramount importance for carbon sequestration and thus for the mitigation of climate change among further implications, e.g. biodiversity aspects. Still, the importance of those forests for climate change mitigation compared to managed forests is under controversial debate. We evaluate the adequacy of referring to CO2 flux measurem...

2017
Suk-Hee Moon Joobeom Seo Ki-Min Park

Reaction of bis-(pyridin-3-ylmeth-yl)sulfane (L) with cobalt(II) chloride in methanol led to the formation of the title coordination polymer, [CoCl2(C12H12N2S)(CH3OH)2] n , in which the CoII cation lies on a crystallographic inversion centre and the S atom of the L ligand lies on a twofold rotation axis. Each CoII ion is coordinated by two pyridine N atoms from two bridging L ligands, two O ato...

Journal: :Inorganic chemistry 2007
Guillem Aromí Patrick Gamez J Krzystek Huub Kooijman Anthony L Spek Elizabeth J MacLean Simon J Teat Harriott Nowell

The synthesis and the structure of the new potentially heptadentate ligand 1,3-bis-(3-oxo-3-(2-hydroxyphenyl)-propionyl)-2-methoxybenzene (H5L) is described. The reaction in pyridine or DMF of this ligand with various M(AcO)2 salts (M = NiII, CoII, MnII) leads to very different products depending on the metal. Thus, the dinuclear complexes [M2(H3L)2(py)4] (M = NiII, 1; CoII, 2) or the linear zi...

2017
Chao-Jun Du Xiao-Na Zhao

In the title compound, [Co(C11H12NO6P)(C6H5N3)2]·C6H5N3, the 2,2'-[N-(phenyl-phospho-rylmethyl-κO)aza-nedi-yl]di-acetate dianion N,O,O',O''-chelates the CoII cation and two 1H-benzo[d][1,2,3]triazole mol-ecules coordinate to the CoII cation to complete the slightly distorted octa-hedral coordination. In the crystal, classical O-H⋯O, N-H⋯O hydrogen bonds and weak C-H⋯N hydrogen bonds link the mo...

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