Results 11 to 20 of about 2,176,720 (143)

Structures, enthalpies of formation, and ionization energies for the parent and binary mixed carbon, silicon, nitrogen, and phosphorus cubane derivatives: A G4MP2 theoretical study [PDF]

open access: yes, 2010
Gas phase standard state (298.15 K, 1 atm) structures, enthalpies of formation, and ionization energies (IEs) were calculated at the G4MP2 composite method level of theory for the parent and binary mixed carbon, silicon, nitrogen, and phosphorus cubane ...
Kaya Forest, Sierra Rayne
core   +2 more sources

EarthN: A new Earth System Nitrogen Model [PDF]

open access: yes, 2018
The amount of nitrogen in the atmosphere, oceans, crust, and mantle have important ramifications for Earth's biologic and geologic history. Despite this importance, the history and cycling of nitrogen in the Earth system is poorly constrained over time ...
Condie K. C.   +8 more
core   +3 more sources

Weighted gene co-expression network analysis of nitrogen (N)-responsive genes and the putative role of G-quadruplexes in N use efficiency (NUE) in rice

open access: yesFrontiers in Plant Science, 2023
Rice is an important target to improve crop nitrogen (N) use efficiency (NUE), and the identification and shortlisting of the candidate genes are still in progress.
Narendra Sharma   +4 more
doaj   +1 more source

Polarization and readout of coupled single spins in diamond [PDF]

open access: yes, 2006
We study the coupling of a single nitrogen-vacancy center in diamond to a nearby single nitrogen defect at room temperature. The magnetic dipolar coupling leads to a splitting in the electron spin resonance frequency of the nitrogen-vacancy center ...
C. P. Slichter   +5 more
core   +2 more sources

The Ingenious Synthesis of a Nitro-Free Insensitive High-Energy Material Featuring Face-to-Face and Edge-to-Face π-Interactions

open access: yesFrontiers in Chemistry, 2019
Density, detonation property, and sensitivity may be the most valued features when evaluating an energetic material. By reasoning structure–property relationships, a nitro-free planar energetic material with high nitrogen and oxygen content, 7-hydroxy ...
Lianjie Zhai   +6 more
doaj   +1 more source

Recent Advances in the Synthesis and Biomedical Applications of Heterocyclic NO-Donors

open access: yesMolecules, 2021
Nitric oxide (NO) is a key signaling molecule that acts in various physiological processes such as cellular metabolism, vasodilation and transmission of nerve impulses.
Leonid L. Fershtat, Egor S. Zhilin
doaj   +1 more source

Comparative research on promising energetic 1,3-diazinane and 1,3-oxazinane structures

open access: yesArabian Journal of Chemistry, 2022
The additional carbon centers in 1,3-diazinane and 1,3-oxazinane enable them to covalently bonded geminal-explosophoric groups, leading to unique energetic properties when compared with their homologous energetic structure like RDX.
Kaidi Yang   +6 more
doaj  

Food security and sustainable crops production with considering climate change in China

open access: yesRUDN Journal of Agronomy and Animal Industries, 2019
Increase in the mean seasonal temperature can reduce the duration of many crops which may lead to final yield reduction. China needs to cope with the adverse effects of climate change by developing heat and drought resistant high yielding varieties and ...
Mohamad Hesam Shahrajabian   +2 more
doaj   +1 more source

Facile Preparation and Properties of Crosslinked Copolyether Elastomers with 1,2,3‐Triazole and Urethane Subunit via Click Polymerization

open access: yesChemistryOpen, 2019
An azide terminated ethylene oxide‐tetrahydrofuran copolymer with urethane segments (ATUPET) as a novel binder pre‐polymer, has been prepared through ethylene oxide‐tetrahydrofuran random copolymer (PET) end‐capping modification via one‐pot method.
Dr. Qian Zhang   +6 more
doaj   +1 more source

Theoretical insights on designing of difluoramino compounds

open access: yesFirePhysChem, 2022
In order to screen out novel energetic compounds with excellent comprehensive properties and provide theoretical guidance for design researcher, a series of difluoroamino energetic compounds were designed by combining energetic molecular scaffolds and ...
Peng Lian   +5 more
doaj  

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