Results 111 to 120 of about 123,857 (304)

Effects of compost and digestate on environment and plant production – results of two research projects [PDF]

open access: yes, 2008
A yearly amount of 9.3x106t compost and digestate derived from separately collected organic waste is produced in the 25 European Union member states. The improvement of soil properties is a major benefit of compost application.
Berner, Alfred   +4 more
core  

Mapping the structural diversity of C60 carbon clusters and their infrared spectra

open access: yes, 2019
The current debate about the nature of the carbonaceous material carrying the infrared (IR) emission spectra of planetary and proto-planetary nebulae, including the broad plateaus, calls for further studies on the interplay between structure and ...
Calvo, F.   +6 more
core   +3 more sources

Polycyclic- and sulfurcontaining-compounds: from polycyclic hydrocarbons to thiaspherophane

open access: yes, 2019
This thesis contains the examination of four, in first glance, unrelated topics. However, the overarching motivation behind these subjects are the same: The Art and Challenge of Organic Chemistry. I. The first chapter deals with the design, based on theoretical principles, and preparation of unsaturated spirocyclic compounds bearing sulfur ...
openaire   +3 more sources

Production of lotion using neem (Azadirachta Indica A. Juss) extract [PDF]

open access: yes, 2020
Nowadays, the most emerging disease which is arthropod borne disease cannot be prevented from vaccines and become a potential threat especially in tropical world such as America, Africa and Asia and has become a trend (Al-Hashemi et al., 2016; Biswas et ...
Ghazali, Norliza   +3 more
core  

Synthesis and Optical Properties of N-Arylnaphtho- and Anthra[2,3-d]oxazol-2-amines

open access: yesMolecules
Oxazole, a versatile and significant heteroarene, serves as a bridge between synthetic organic chemistry and applications in the medicinal, pharmaceutical, and industrial fields.
Yuki Murata   +4 more
doaj   +1 more source

Selective Halogen-Lithium Exchange of 1,2-Dihaloarenes for Successive [2+4] Cycloadditions of Arynes and Isobenzofurans

open access: yesMolecules, 2015
Successive [2+4] cycloadditions of arynes and isobenzofurans by site-selective halogen-lithium exchange of 1,2-dihaloarenes were developed, allowing the rapid construction of polycyclic compounds which serve as a useful synthetic intermediates for the ...
Shohei Eda, Toshiyuki Hamura
doaj   +1 more source

Methane Pyrolysis Performance in Catalytic Molten Media for Hydrogen Production From the Perspective of Bubble Column Reactor Design and Configuration

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT In the hydrogen production routes from natural gas (methane), methane pyrolysis offers a cleaner option than the established steam methane reforming by producing CO2‐free hydrogen. However, in fixed bed reactors over solid catalysts, this technology experiences rapid catalyst deactivation due to carbon (coke) deposition encapsulating its ...
Muhammad Irfan Fakarudin   +3 more
wiley   +1 more source

Catalytic condensation for the formation of polycyclic heteroaromatic compounds

open access: yesNature Communications, 2018
The development of novel chemical reactions converting biomass-derived alcohols into important classes of compounds is a particularly attractive strategy.
Daniel Forberg   +2 more
doaj   +1 more source

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