Results 41 to 50 of about 1,249,363 (328)

Ammonium perchlorate and ammonium perchlorate-binder sandwich combustion [PDF]

open access: yes12th Aerospace Sciences Meeting, 1974
order of 300 \i in width. The deflagration of all three burners appeared laminar, with a definite temperature peak above the center of the burner. The PP-COMM AP had a scalloped surface which accounted for a more unsteady appearance of the gas flow above the deflagrating AP. A yellow-green zone was visible within the SC-UHP AP extending from the burner
Murphy, J. L., Netzer, David Willis
openaire   +3 more sources

Metabolic and Transcriptional Profiles of Dunaliella viridis Supplemented With Ammonium Derived From Glutamine

open access: yesFrontiers in Marine Science, 2018
Algal biofuel production requires an input of synthetic nitrogen fertilizer. Fertilizer synthesized via the Haber-Bosch process produces CO2 as a waste by-product and represents a substantial financial and energy investment.
Jacob Dums   +6 more
doaj   +1 more source

Redox-Controlled Ammonium Storage and Overturn in Ediacaran Oceans

open access: yesFrontiers in Earth Science, 2021
As a key nutrient, nitrogen can limit primary productivity and carbon cycle dynamics, but also evolutionary progress. Given strong redox-dependency of its molecular speciation, environmental conditions can control nitrogen localization and ...
Christian Hallmann   +9 more
doaj   +1 more source

Extracellular electron transfer-dependent anaerobic oxidation of ammonium by anammox bacteria

open access: yesNature Communications, 2019
Anaerobic ammonium oxidation (anammox) bacteria contribute significantly to the global nitrogen cycle and play a major role in sustainable wastewater treatment.
D. R. Shaw   +8 more
semanticscholar   +1 more source

Stereospecific and chemoselective copper-catalyzed deaminative silylation of benzylic ammonium triflates [PDF]

open access: yes, 2019
A method for the synthesis of benzylsilanes starting from the corresponding ammonium triflates is reported. Silyl boronic esters are employed as silicon pronucleophiles, and the reaction is catalyzed by copper(I) salts.
Gross, Benjamin M.   +2 more
core   +1 more source

Ammonium and methyl ammonium transport by RhAG

open access: yesThe FASEB Journal, 2012
The erythroid Rh protein (RhAG) is one component of the “Rh complex” that is known for its immunogenic characteristics. Recently, a role of RhAG in transport of ions has been proposed. In this study, we characterized NH3/NH4+ transport by RhAG expressed in Xenopus oocytes. To do so we used ion‐selective microelectrodes & two‐electrode voltage clamp
Nazih L. Nakhoul   +4 more
openaire   +1 more source

Comparing Soil Nitrous Oxide and Methane Fluxes From Oil Palm Plantations and Adjacent Riparian Forests in Malaysian Borneo

open access: yesFrontiers in Forests and Global Change, 2021
Riparian forests are often kept as buffers between rivers and oil palm plantations. Many benefits of riparian forests, such as increasing biodiversity and providing a travel corridor for wildlife have been documented.
Julia Drewer   +5 more
doaj   +1 more source

On the ammonium amalgam [PDF]

open access: yesAmerican Journal of Science
n ...
Pfeil, F. S., Leffman, H.
openaire   +2 more sources

Synthesis and Properties of Acyclic Ammonium-based Ionic Liquids with Allyl Substituents as Electrolytes

open access: yesMolecules, 2009
Several new acyclic ammonium-TFSI ionic liquids with an allyl substituent(s) were synthesized and their physicochemical and electrochemical properties were characterized. [AAMM]Am-TFSI (3) with two allyl groups showed the widest electrochemical stability
Young Gyu Kim   +4 more
doaj   +1 more source

Can Ammonium Stress Be Positive for Plant Performance?

open access: yesFrontiers in Plant Science, 2019
Daniel Marino, Jose F Moran
exaly   +3 more sources

Home - About - Disclaimer - Privacy