Results 71 to 80 of about 64,474 (291)
Isotope selective photodissociation of N-2 by the interstellar radiation field and cosmic rays [PDF]
, 2014 Photodissociation of 14N2 and 14N15N occurs in interstellar clouds, circumstellar envelopes, protoplanetary discs, and other environments due to UV radiation from stellar sources and the presence of cosmic rays.
A. Heays +6 more
semanticscholar +1 more source
Mass Spectrometry Reviews, EarlyView.ABSTRACT One of the great triumphs of mass spectrometry‐based peptide and protein characterization is the characterization of their modifications as most modifications have a characteristic mass shift. What happens when the modification does not change the mass of the peptide?
Samuel Okyem, Jonathan V. Sweedler
wiley +1 more source
The Photodissociation and Ionization Fronts in M17-SW Localized with FIFI-LS on Board SOFIA
The Astrophysical Journal, 2023 To understand star formation rates, studying feedback mechanisms that regulate star formation is necessary. The radiation emitted by nascent massive stars play a significant role in feedback by photodissociating and ionizing their parental molecular ...
Randolf Klein +7 more
doaj +1 more source
, 2010 We explore the effects of photodissociation at the stages of post-asymptotic giant branch stars to find a mechanism able to produce multi-polar shapes. We perform two-dimensional gasdynamical simulations to model the effects of photodissociation in proto-
Abgrall +51 more
core +1 more source
CHARACTERIZING THE ABSORPTION AND PHOTODISSOCIATION OF ATMOSPHERIC NITRATE VIA ACTION SPECTROSCOPY [PDF]
, 2023 Brianna N. Hopper, Étienne Garand
openalex +1 more source
Advancements in Mass Spectrometry‐Based Glycomics in Food and Nutritional Science
Mass Spectrometry Reviews, EarlyView.ABSTRACT This review highlights advancements in mass spectrometry (MS)‐based glycomics in food and nutritional science. Carbohydrates, which are vital for human health, exhibit complex structures, making their analysis challenging. MS has become an indispensable tool for elucidating the structures of carbohydrates, including glycans, through soft ...
JaeHui Song +3 more
wiley +1 more source
Preparing sulfur nanoparticles and determining their effect on the photodegradation of polycarbonates [PDF]
مجلة جامعة الانبار للعلوم الصرفةThis study involved the preparation of sulfur nanoparticles using the extract of Ziziphus-spina leaves and examined their effect on the photodegradation of polycarbonate membranes with a thickness of (60±5) microns, after adding various ...
rand hassan, Hameed Ali, Muthanaa Sirhan
doaj +1 more source
Dust processing in photodissociation regions - Mid-IR emission modelling
, 2008 Mid-infrared spectroscopy of dense illuminated ridges (or photodissociation regions, PDRs) suggests dust evolution. Such evolution must be reflected in the gas physical properties through processes like photo-electric heating or H_2 formation.
A. Abergel +89 more
core +1 more source
Enhancing Lipidomics With High‐Resolution Ion Mobility‐Mass Spectrometry
PROTEOMICS, EarlyView.ABSTRACT Lipids, indispensable yet structurally intricate biomolecules, serve as critical regulators of cellular function and disease progression. Conventional lipidomics, constrained by limited resolution for isomeric and low‐abundance species, has been transformed by ion mobility‐mass spectrometry (IM‐MS).
Gaoyuan Lu +3 more
wiley +1 more source
Ultrafast F2− photodissociation by intense laser pulses: a time-resolved fragment imaging study [PDF]
EPJ Web of Conferences, 2019 We present time-resolved coincidence imaging of F2− photodissociation by 400nm and intense 800nm ultrafast pulses. Coincidence fragment imaging reveals parallel and perpendicular single photon dissociation on 2Σg+ and 2πg states, and additional intense ...
Shahi Abhishek +2 more
doaj +1 more source