نتایج جستجو برای: decreasing co2 concentration

تعداد نتایج: 524542  

2001
Alison Donnelly Tracy Lawson Jim Craigon Colin R. Black Jeremy J. Colls Geoff Landon

This study examined the effects of season-long exposure to elevated carbon dioxide (CO2) and/or ozone (O3) on tuber quality in potato (Solanum tuberosum L. cv. ‘Bintje’). Stands of potato were grown to maturity in open-top chambers (OTCs) in 1998 and 1999 under a factorial combination of three CO2 (ambient, 550 and 680 mol mol−1) and two O3 levels (ambient and elevated; 8 h per day seasonal mea...

Journal: :The Journal of chemical physics 2017
Tuanan C Lourenço Santiago Aparicio Gabriela C Costa Luciano T Costa

Despite the innumerous papers regarding the study of the ionic liquids as a potential candidate for CO2 capture, many details concerning the structure and dynamics of CO2 in the system are still to be revealed, i.e., the correlation between the local environment structure and the dynamic properties of the substance. This present work relied on the performance of molecular dynamics both for the ...

2012
Ai-Zheng Chen Guang-Ya Wang Shi-Bin Wang Jian-Gang Feng Yuan-Gang Liu Yong-Qiang Kang

The supercritical CO2-based technologies have been widely used in the formation of drug and/or polymer particles for biomedical applications. In this study, nanoparticles of poly-(methyl vinyl ether-co-maleic anhydride) (PVM/MA) were successfully fabricated by a process of solution-enhanced dispersion by supercritical CO2 (SEDS). A 2 factorial experiment was designed to investigate and identify...

Journal: :Journal of phycology 2009
Vidhu Verma Shabana Bhatti Volker A R Huss Brian Colman

The processes of CO2 acquisition were characterized for the acid-tolerant, free-living chlorophyte alga, CPCC 508. rDNA data indicate an affiliation to the genus Coccomyxa, but distinct from other known members of the genus. The alga grows over a wide range of pH from 3.0 to 9.0. External carbonic anhydrase (CA) was detected in cells grown above pH 5, with the activity increasing marginally fro...

Journal: :Plant, cell & environment 2006
James A Bunce

A reduction in leaf stomatal conductance (g) with increasing leaf-to-air difference in water vapour pressure (D) is nearly ubiquitous. Ecological comparisons of sensitivity have led to the hypothesis that the reduction in g with increasing D serves to maintain leaf water potentials above those that would cause loss of hydraulic conductance. A reduction in leaf water potential is commonly hypoth...

Journal: :The Journal of clinical investigation 1977
J A Arruda L Nascimento P K Mehta D R Rademacher J T Sehy C Westenfelder N A Kurtzman

Measurement of urine to blood (U-B) carbon dioxide tension (P(CO2)) gradient during alkalinization of the urine has been suggested to assess distal H(+) secretion. A fact that has not been considered in previous studies dealing with urinary P(CO2) is that dissolution of HCO(3) in water results in elevation of P(CO2) which is directly proportional to the HCO(3) concentration. To investigate the ...

2017
Shuo Liu Muhammad Ahmed Waqas Song-He Wang Xiang-Yang Xiong Yun-Fan Wan

The increased atmospheric temperatures resulting from the increased concentration of atmospheric carbon dioxide (CO2) have had a profound influence on global rice production. China serves as an important area for producing and consuming rice. Therefore, exploring the effects of the simultaneously rising levels of atmospheric CO2 and temperatures on rice growth and quality in the future is very ...

2004
HARUKO KURIHARA SHINJI SHIMODE YOSHIHISA SHIRAYAMA

Data concerning the effects of high CO2 concentrations on marine organisms are essential for both predicting future impacts of the increasing atmospheric CO2 concentration and assessing the effects of deep-sea CO2 sequestration. Here we review our recent studies evaluating the effects of elevated CO2 concentrations in seawater on the mortality and egg production of the marine planktonic copepod...

2011
Xiaoying Shi Jiafu Mao Peter E. Thornton Forrest M. Hoffman Wilfred M. Post

[1] We investigated how climate, rising atmospheric CO2 concentration, increasing anthropogenic nitrogen deposition and land use change influenced continental river flow over the period 1948–2004 using the Community Land Model version 4 (CLM4) with coupled river transfer model (RTM), a global river routing scheme. The model results indicate that the global mean river flow shows significant decr...

Journal: :Current Opinion in Plant Biology 2016

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