Results 11 to 20 of about 1,457,583 (292)

Antibacterial Activity of Phyllophorus sp. Methanol Crude Extract on Vibrio alginolyticus and Vibrio harveyi

open access: yesJournal of Marine and Coastal Science, 2022
Utilization of natural materials sourced from the sea is very promising. These natural ingredients can function as antibacterials that are useful in a number of fields. This study aims to explore the extract of sea cucumber Phylloporus sp.
Sapto Andriyono   +2 more
doaj   +1 more source

A New 95 GHz Methanol Maser Catalog: I. Data [PDF]

open access: yes, 2017
The Purple Mountain Observatory 13.7 m radio telescope has been used to search for 95 GHz (8$_0$--7$_1$A$^+$) class I methanol masers towards 1020 Bolocam Galactic Plane Survey (BGPS) sources, leading to 213 detections. We have compared the line width of
Chen, Xi   +6 more
core   +2 more sources

Imaging spatiotemporal evolution of molecules and active sites in zeolite catalyst during methanol-to-olefins reaction

open access: yesNature Communications, 2020
Imaging zeolites in catalysis relies on the use of probe molecules or model catalysts. Here the authors show the synergy of a multiscale reaction-diffusion model and structured illumination microscopy to illustrate spatiotemporal evolution of molecules ...
Mingbin Gao   +7 more
doaj   +1 more source

Detection of abundant solid methanol toward young low mass stars [PDF]

open access: yes, 2003
We present detections of the absorption band at 3.53 micron due to solid methanol toward three low-mass young stellar objects located in the Serpens and Chameleon molecular cloud complexes.
Bachiller   +30 more
core   +8 more sources

Stevioside methanol tetrasolvate [PDF]

open access: yesActa Crystallographica Section E Structure Reports Online, 2013
Stevioside is a naturally occurring diterpenoid glycoside in Stevia rebaudiana Bertoni. The title compound, C38H60O18·4CH3OH, crystallized as its methanol tetrasolvate. Stevioside consists of an aglycone steviol (a tetra-cyclic diterpene in which the four-fused-ring system consists of three six-membered rings and one five-membered ring) and a sugar ...
Mitchell A. Avery   +4 more
openaire   +3 more sources

Molecular elucidating of an unusual growth mechanism for polycyclic aromatic hydrocarbons in confined space

open access: yesNature Communications, 2020
Coke-induced catalyst deactivation draws increasing concerns in industrially catalytic processes. Here the authors provide a strategy integrating advanced mass spectroscopy and isotope labeling to uncover a cage-passing molecular route of coking species ...
Nan Wang   +11 more
doaj   +1 more source

Selective conversion of CO2 and H2 into aromatics

open access: yesNature Communications, 2018
Selective conversion of CO2 and H2 into aromatics remains challenging due to the high unsaturation degree and complex structure of aromatics. Here the authors report a composite catalyst of ZnAlOx and H-ZSM-5 which promotes the formation of aromatics ...
Youming Ni   +5 more
doaj   +1 more source

Implications of a short carbon pulse on biofilm formation on mica schist in microcosms with deep crystalline bedrock groundwater

open access: yesFrontiers in Microbiology, 2023
Microbial life in the deep subsurface occupies rock surfaces as attached communities and biofilms. Previously, epilithic Fennoscandian deep subsurface bacterial communities were shown to host genetic potential, especially for heterotrophy and sulfur ...
Maija Nuppunen-Puputti   +3 more
doaj   +1 more source

Recent advances in sustainable and safe marine engine operation with alternative fuels

open access: yesFrontiers in Mechanical Engineering, 2022
Pursuing net-zero emission operations in the shipping industry are quintessential for this sector to mitigate the environmental impact caused by hydrocarbon fuel combustion.
Panagiotis Karvounis   +3 more
doaj   +1 more source

UV photodesorption of methanol in pure and CO-rich ices: desorption rates of the intact molecule and of the photofragments [PDF]

open access: yes, 2016
Wavelength dependent photodesorption rates have been determined using synchrotron radiation, for condensed pure and mixed methanol ice in the 7 -- 14 eV range. The VUV photodesorption of intact methanol molecules from pure methanol ices is found to be of
Bertin, Mathieu   +9 more
core   +5 more sources

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