نتایج جستجو برای: organic n

تعداد نتایج: 1157486  

2004
Luca Bragazza Juul Limpens

[1] To assess the effects of increased atmospheric N input on N availability in ombrotrophic peatlands, the relative concentrations of dissolved organic nitrogen (DON) to dissolved inorganic nitrogen (DIN) were measured in bog waters along a natural gradient of atmospheric N deposition. Six European bogs were selected, spanning a range of chronic atmospheric N inputs from 0.2 to 2.0 g m 2 yr . ...

2013
Kenjiro Fukuda Kenta Hikichi Tomohito Sekine Yasunori Takeda Tsukuru Minamiki Daisuke Kumaki Shizuo Tokito

Mechanical flexibility and compatibility of printing processes are key advantage that organic electronic devices have over conventional inorganic devices. However, one of the major remaining issues for organic devices is insufficient mechanical durability of printed electrodes. Here we have investigated the mechanical durability of both p-type and n-type organic thin-film transistors (TFTs) wit...

Journal: :Proceedings of the National Academy of Sciences 2009

Journal: :Acta Crystallographica Section A Foundations and Advances 2014

Journal: :Advanced energy and sustainability research 2021

Coordination between boron Lewis acid and nitrogen base (B?N) is a classically chemical issue that has been known for several decades. Recently, this B?N chemistry developed into new stage toward electronic materials, e.g., adjusting optoelectronic properties of N-based conjugated molecules via adding B acids, synthesizing B?N-bridged units, further constructing B?N-embedded organic photovoltai...

Journal: :Progress in neuro-psychopharmacology & biological psychiatry 2008
Bertrand Lahutte Françoise Cornic Olivier Bonnot Angèle Consoli Isabelle An-Gourfinkel Zahir Amoura Frédéric Sedel David Cohen

Catatonia is an infrequent but severe condition in young people. Organic diseases may be associated and need to be investigated though no specific recommendations and guidelines are available. We extensively reviewed the literature of all the cases of organic catatonia in children and adolescents from January 1969 to June 2007. We screened socio-demographic characteristics, organic diagnosis, c...

2005
Stuart Chapin

Dissolved organic nitrogen (DON) is present in soils and streams around the world. We are only now beginning to explore the important roles this chemically heterogeneous mixture of compounds plays in terrestrial nitrogen (N) cycling. Over centuries, DON leaching may represent a significant "leak" of N, which occurs because plants and microbes cannot prevent DON losses, even in times of high N d...

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