Results 201 to 210 of about 4,377,426 (345)

Application of Raman and Photoluminescence Spectroscopy to MgO‐C Refractories

open access: yesAdvanced Engineering Materials, EarlyView.
Visible to near infrared luminescence of MgO is studied on MgO‐C bricks and nominally pure MgO powder, with focus on two similar sharp high‐intensity signals, at 699 and 871 nm, each surrounded by symmetrical sidebands. The nature of these sidebands is investigated by temperature‐dependent spectroscopic measurements, confirming phonon involvement by ...
Julia Richter   +5 more
wiley   +1 more source

Genome Mining of Fungal Aza-Polycyclic Natural Products Derived from Arginine-Containing Cyclodipeptides

open access: green
Kanji Niwa   +7 more
openalex   +2 more sources

Flavone-based analogues inspired by the natural product simocyclinone D8 as DNA gyrase inhibitors

open access: green, 2013
Jenson Verghese   +5 more
openalex   +1 more source

On the Influence of Antioxidants and Recycled MgO–C Source Material on the Mechanical Properties of Carbon‐Bonded Magnesia Refractories

open access: yesAdvanced Engineering Materials, EarlyView.
The presented study focuses on the fracture behaviour of carbon‐bonded magnesia MgO–C refractories, where environmentally friendly fructose, collagen and lignin serve as temporary binding agents. The partial substitution of the source material with recycled MgO–C reduces the fracture resistance, which can be counteracted by the additional introduction ...
Marc Neumann   +6 more
wiley   +1 more source

Phylogenomic analysis of natural products biosynthetic gene clusters allows discovery of arseno-organic metabolites in model streptomycetes [PDF]

open access: green, 2015
Pablo Cruz‐Morales   +7 more
openalex   +1 more source

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

open access: yesAdvanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm   +5 more
wiley   +1 more source

Biodiversity-Driven Natural Products and Bioactive Metabolites. [PDF]

open access: yesPlants (Basel)
Angeles Flores G   +3 more
europepmc   +1 more source

Natural Products Chemistry [PDF]

open access: yes, 2001
幸田 恭治   +3 more
core   +1 more source

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