Results 211 to 220 of about 8,049 (296)

Commissioning an Inexpensive Off‐The‐Shelf Spectrograph for Radial‐Velocity Studies

open access: yesAstronomische Nachrichten, EarlyView.
ABSTRACT We present a way to set up an inexpensive out of the shelf spectrograph at a local observatory. Stability and resolution of the spectrograph are high enough for radial velocity determination of binary stars or determination of stellar characteristics. Even some exoplanets might be detectable via the radial velocity method.
Lukas Stock, Andreas Schrimpf
wiley   +1 more source

A sustainable business ecosystem: a case study demonstrating biochar's potential

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract The need for renewable, climate‐friendly resources has become urgent as legislators worldwide have sought to find ways to cut emissions while ensuring resource security for consumers. The use of biochar could help to achieve these goals. This study examines the current state of commercial biochar production and the maturity of the related ...
Kivijakola Juuso   +4 more
wiley   +1 more source

Hydrogen fuel production from sugarcane and its byproducts – a critical review

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract The transition to a low‐carbon economy has intensified the search for sustainable hydrogen (H2) production routes. Sugarcane and its byproducts, such as bagasse, molasses and vinasse, have emerged as promising feedstocks due to their ready availability and renewable nature. However, comprehensive evaluations of the efficiency, limitations, and
Jaqueline Calixto de Sousa   +3 more
wiley   +1 more source

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