Results 151 to 160 of about 332,407 (363)
The economic impact of future biological nitrogen fixation technologies [PDF]
The economic impact of some future biological nitrogen fixation technologies are estimated using AGSIM, a dynamic, partial equilibrium, econometric model of the U.S. agricultural sector. Five separate scenarios were modeled: (1) legumes fix more nitrogen,
Tauer, Loren W.
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RECENT DEVELOPMENTS IN THE FIXATION OF ATMOSPHERIC NITROGEN [PDF]
, 1918 George W. Sears
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Advanced Functional Materials, EarlyView.A high‐performance magnetic composite actuator that integrates covalent and reversible physical cross‐links within a stiffness‐tunable polymer matrix embedded with functionalized magnetic particles is presented. The actuator exhibits programmable magnetic responsiveness, a stiffness switching ratio of 1.37 × 103, stretchability up to 1274%, large ...
Somi Kim +7 more
wiley +1 more source
Widespread nitrogen fixation in sediments from diverse deep-sea sites of elevated carbon loading [PDF]
, 2018 Nitrogen fixation, the biological conversion of N_2 to NH_3, is critical to alleviating nitrogen limitation in many marine ecosystems. To date, few measurements exist of N_2 fixation in deep‐sea sediments. Here, we conducted > 400 bottle incubations with
Chadwick, Grayson L. +7 more
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Advanced Functional Materials, EarlyView.This study explores a cost‐effective alternative by incorporating oxophilic dopants into non‐precious metal hosts to enhance water dissociation and catalyst stability. Computational screening identified Ni─V, Ni─Mo, and Co─V as top candidates. Subsequent experiments confirmed Ni20V exhibits superior HER activity, achieving 76 mV lower overpotential ...
Hyeonjung Jung +13 more
wiley +1 more source
Maximum rates of N2 fixation and primary production are out of phase in a developing cyanobacterial bloom in the Baltic Sea [PDF]
, 2002 Although N2-fixing cyanobacteria contribute significantly to oceanic sequestration of atmospheric CO2, little is known about how N2 fixation and carbon fixation (primary production) interact in natural populations of marine cyanobacteria. In a developing
Albertano, P. +18 more
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Advanced Functional Materials, EarlyView.A minimally invasive, transepithelial corneal cross‐linking (TE‐CXL) approach is presented using upconversion nanoparticles (UCNPs)‐loaded contact lenses (UCLs), after topical delivery of hyaluronate–riboflavin conjugates. The NIR‐to‐UV/blue light conversion by UCNPs in a UCL can activate riboflavin for TE‐CXL, resulting in the biomechanical strength ...
Gibum Lee +8 more
wiley +1 more source
Examining root nodule activity on legumes [PDF]
, 2017 The symbiotic partnership between bacteria and legumes is vital for the supply of biologically fixed nitrogen to soil and plants in organic cropping systems.
Hansen, Sissel, Pommeresche, Reidun
core
SOME REQUIREMENTS OF BIOLOGICAL NITROGEN FIXATION
, 1958 James E. Carnahan, John E. Castle
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Advanced Functional Materials, EarlyView.The ultrahard teeth of mollusks that feed on rocky substrates contain a wear‐resistant coating on their surfaces consisting of densely packed mesocrystalline magnetic nanoparticles within an organic matrix. These coatings display significant hardness and toughness through their highly controlled mesocrystalline architectures.
Taifeng Wang +7 more
wiley +1 more source