scholarly journals Atmospheric Ammonia Concentration Effects on Broiler Growth and Performance

2004 ◽  
Vol 13 (1) ◽  
pp. 5-9 ◽  
Author(s):  
A. Beker ◽  
S.L. Vanhooser ◽  
J.H. Swartzlander ◽  
R.G. Teeter
Keyword(s):  
Ammonia Concentration ◽  
Concentration Effects ◽  
Atmospheric Ammonia ◽  
And Performance

Detecting changes in epiphytic lichen communities at sites affected by atmospheric ammonia from agricultural sources

2006 ◽  
Vol 38 (2) ◽  
pp. 161-176 ◽  
Author(s):  
Patricia A. WOLSELEY ◽  
Peter W. JAMES ◽  
Mark R. THEOBALD ◽  
Mark A. SUTTON
Keyword(s):  
At Risk ◽  
The Netherlands ◽  
Negative Correlation ◽  
Ammonia Concentration ◽  
Quercus Petraea ◽  
Epiphytic Lichens ◽  
Indicator Values ◽  
Epiphytic Lichen ◽  
Atmospheric Ammonia ◽  
Ecological Continuity

Lichens were recorded on Quercus petraea trunks and twigs near ammonia recording stations in ‘continental’ Norfolk, and ‘oceanic’ Devon in order to test indicator values developed for epiphytic lichens in areas of high atmospheric ammonia in the Netherlands. Lichens on trunks in Norfolk showed a similar correlation of nitrophyte indices with ammonia concentration and bark pH as those in Holland, whereas in Devon there was no correlation with nitrophyte indices on trunks and a negative correlation with acidophyte indices. Results on twigs in both sites suggest that lichens on twigs respond more rapidly to recent changes in ammonia concentrations while trunks may maintain relict lichen communities due to either a legacy of previous acidification or ecological continuity. The results suggest that loss of acidophytes is taking place prior to the establishment of nitrophytes indicating the importance of establishing levels of ammonia at which sensitive communities are at risk.

scholarly journals Investigation of Annealing and Blend Concentration Effects of Organic Solar Cells Composed of Small Organic Dye and Fullerene Derivative

2011 ◽  
Vol 2011 ◽  
pp. 1-10 ◽  
Author(s):  
Yasser A. M. Ismail ◽  
Tetsuo Soga ◽  
Takashi Jimbo
Keyword(s):  
Solar Cells ◽  
Thermal Annealing ◽  
Organic Solar Cells ◽  
Organic Molecules ◽  
Organic Dye ◽  
Fullerene Derivative ◽  
Performance Parameters ◽  
Concentration Effects ◽  
Small Organic Molecules ◽  
And Performance

We have fabricated bulk heterojunction organic solar cells using coumarin 6 (C6) as a small organic dye, for light harvesting and electron donation, with fullerene derivative [6,6]-phenyl-C61 butyric acid methyl ester (PCBM), acting as an electron acceptor, by spin-coating technique. We have investigated thermal annealing and blend concentration effects on light harvesting, photocurrent, and performance parameters of the solar cells. In this work, we introduced an experimental method by which someone can easily detect the variation in the contact between active layer and cathode due to thermal annealing after cathode deposition. We have showed, in this work, unusual behavior of solar cell composed of small organic molecules under the influence of thermal annealing at different conditions. This behavior seemed uncommon for polymer solar cells. We try from this work to understand device physics and to locate a relationship between production parameters and performance parameters of the solar cell based on small organic molecules.

Estimating the uncertainty in the atmospheric ammonia concentration in an urban area by Ogawa passive samplers

2013 ◽  
Vol 110 ◽  
pp. 340-349 ◽  
Author(s):  
Manuel A. Leiva G. ◽  
Benjamin Gonzales ◽  
Daniela Vargas ◽  
Richard Toro ◽  
Raul G.E. Morales S.
Keyword(s):  
Urban Area ◽  
Ammonia Concentration ◽  
Passive Samplers ◽  
Atmospheric Ammonia

Atmospheric ammonia concentration modulates soil enzyme and microbial activity in an oak forest affecting soil microbial biomass

2018 ◽  
Vol 116 ◽  
pp. 378-387 ◽  
Author(s):  
M. López-Aizpún ◽  
C. Arango-Mora ◽  
C. Santamaría ◽  
E. Lasheras ◽  
J.M. Santamaría ◽  
...  
Keyword(s):  
Microbial Biomass ◽  
Microbial Activity ◽  
Soil Microbial Biomass ◽  
Ammonia Concentration ◽  
Soil Enzyme ◽  
Oak Forest ◽  
Atmospheric Ammonia ◽  
Soil Microbial

Symbolic seasonal variation newly found in atmospheric ammonia concentration in urban area of Japan

2021 ◽  
Vol 244 ◽  
pp. 117943
Author(s):  
Duy V. Nguyen ◽  
Hiroshi Sato ◽  
Hitoshi Hamada ◽  
Shinichi Yamaguchi ◽  
Takatoshi Hiraki ◽  
...  
Keyword(s):  
Seasonal Variation ◽  
Urban Area ◽  
Ammonia Concentration ◽  
Atmospheric Ammonia

scholarly journals Analysis of atmospheric ammonia concentration from four sites in Quebec City region over 2010–2013

2018 ◽  
Vol 9 (3) ◽  
pp. 476-482 ◽  
Author(s):  
A.D. Larios ◽  
F. Chebana ◽  
S. Godbout ◽  
S.K. Brar ◽  
F. Valera ◽  
...  
Keyword(s):  
Ammonia Concentration ◽  
Quebec City ◽  
City Region ◽  
Atmospheric Ammonia

Resonant Stark spectrophone as an enhanced trace level ammonia concentration detector: design and performance at CO_2 laser frequencies

1990 ◽  
Vol 29 (18) ◽  
pp. 2679 ◽  
Author(s):  
Hans Sauren ◽  
Dane Bicanic ◽  
Willy Hillen ◽  
Henk Jalink ◽  
Kees van Asselt ◽  
...  
Keyword(s):  
Ammonia Concentration ◽  
Trace Level ◽  
Laser Frequencies ◽  
And Performance ◽  
Detector Design

Relationship Between Atmospheric Ammonia Concentration and Nitrogen Content in Terricolous Lichen (Cladonia portentosa)

2014 ◽  
Vol 225 (11) ◽  
Author(s):  
Knud Erik Nielsen ◽  
H. V. Andersen ◽  
M. Strandberg ◽  
P. Løfstrøm ◽  
H. J. Degn ◽  
...  
Keyword(s):  
Nitrogen Content ◽  
Ammonia Concentration ◽  
Atmospheric Ammonia ◽  
Terricolous Lichen
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