Results 101 to 110 of about 1,558,738 (237)

Trimerization of NaC2N3 to Na3C6N9 in the Solid [PDF]

open access: yes, 2000
Sodium dicyanamide NaC2N3 was found to undergo two phase transitions. According to thermal analysis and temperature-dependent X-ray powder diffractometry, the transition of α-NaC2N3 (1a) to β-NaC2N3 (1b) occurs at 33°C and is displacive.
Irran, Elisabeth   +3 more
core   +1 more source

Finding Safe and Cheap Exchanges to Hydrogen Cyanamide on “Flame Seedless” grapevines

open access: yesAlexandria Journal of Agricultural Sciences, 2018
This study was carried out to study the effect of safe alternatives as compared to hydrogen cyanamide on breaking dormancy of" Flame seedless" grapevines.
M. E. El-Sayed, S. Mahfouze
semanticscholar   +1 more source

Solar‐Driven In Situ Hydrogen Peroxide Production Over Metal‐Free Carbon Nitrides for Environmental Remediation

open access: yesChemPhotoChem, Volume 10, Issue 4, April 2026.
This minireview discusses solar‐driven in situ H2O2 production using metal‐free g‐C3N4 photocatalysts for environmental remediation. It highlights reaction mechanisms, synthesis, and material engineering approaches that enhance light absorption, charge separation, and selectivity, enabling efficient pollutant degradation, biomass oxidation, and ...
Zunaira Muhammad   +3 more
wiley   +1 more source

Cianamida hidrogenada no raleio químico de flores e frutos de pessegueiros (Prunus persica, L. Batsch) cv. Eldorado Hydrogen cyanamide on chemical thinning of peach-tree (Prunus persica, L. Batsch) Flowers and fruits of Eldorado cultivar

open access: yesCiência Rural, 1999
O trabalho foi realizado com o objetivo de avaliar o efeito da cianamida hidrogenada (CH2N2) no raleio de flores e frutos de pessegueiros do cultivar Eldorado. Utilizaram-se plantas com idade de 6 anos, conduzidas sob a forma de vaso e espaçamento de 6,0
Alexandre Couto Rodrigues   +3 more
doaj   +1 more source

Multicomponent Assembly of Proposed DNA Precursors in Water [PDF]

open access: yes, 2012
We propose a novel pathway for the prebiotic synthesis of 2′-deoxynucleotides. Consideration of the constitutional chemical relationships between glycolaldehyde and β-mercapto-acetaldehyde, and the corresponding proteinogenic amino acids, serine and ...
Powner, Matthew W.   +2 more
core   +1 more source

Solid-State Chemistry with Nonmetal Nitrides [PDF]

open access: yes, 1993
Among the nonmetal nitrides, the polymeric binary compounds BN and Si3N4are of particular interest for the development of materials for high-performance applications. The outstanding features of both substances are their thermal, mechanical, and chemical
Schnick, Wolfgang
core   +1 more source

Breaking Bud Dormancy in "Flame Seedless" and "Superior Seedless" Grapevines Using Natural Extracts as Compared with Hydrogen Cyanamide

open access: yesJournal of Plant Production, 2018
This investigation was carried out during two seasons 2017 and 2018 on Flame seedless and superior seedless (Vitis vinifera L.) grapevines ten years old, grown in a private vineyard located at El-Beheira Governorate.
S. Bassiony, M. Ibrahim
semanticscholar   +1 more source

Laboratory Characterization and Astrophysical Detection of Vibrationally Excited States of Vinyl Cyanide in Orion-KL [PDF]

open access: yes, 2014
New laboratory data of CH$_2$CHCN (vinyl cyanide) in its ground and vibrationally excited states at the microwave to THz domain allow searching for these excited state transitions in the Orion-KL line survey.
Alonso, J. L.   +13 more
core   +2 more sources

Extrato de alho como alternativa na quebra de dormência de gemas em macieiras cv. Fuji Kiku Garlic extract as alternative on bud dormant break of apple trees cv. Fuji Kiku

open access: yesRevista Brasileira de Fruticultura, 2007
Este trabalho teve por objetivo estudar os efeitos do extrato de alho (Bioalho®) na quebra de dormência de gemas de macieiras 'Fuji Kiku', em comparação ao uso convencional de cianamida hidrogenada (H2CN2), na região de Guarapuava-PR. Logo após a poda de
Renato Vasconcelos Botelho   +1 more
doaj   +1 more source

Engineering Porous Hollow Metal‐Poly(Heptazine Imide) Spheres: An Optimized Synthetic Strategy for Controlling Surface, Morphology, and Properties

open access: yesAdvanced Functional Materials, Volume 36, Issue 21, 12 March 2026.
Hollow poly(heptazine imide) spheres are prepared through a novel approach that integrates hard templating with ionothermal synthesis. This method enables precise control over surface area, pore volume, hydrophilicity, light absorption, band position, and metal composition. These tunable properties facilitate the customized design of semiconductors for
Lingli Ni   +10 more
wiley   +1 more source

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