Results 51 to 60 of about 167,062 (317)

Enzymatic degradation of biopolymers in amorphous and molten states: mechanisms and applications

FEBS Open Bio, EarlyView.
This review explains how polymer morphology and thermal state shape enzymatic degradation pathways, comparing amorphous and molten biopolymer structures. By integrating structure–reactivity principles with insights from thermodynamics and enzyme engineering, it highlights mechanisms that enable efficient polymer breakdown.
Anđela Pustak, Aleksandra Maršavelski
wiley   +1 more source

Gas-phase Chemistry in the Interstellar Medium: The Role of Laboratory Astrochemistry

Frontiers in Astronomy and Space Sciences, 2022
“Who” and how? In this simple question the complexity of the interstellar chemistry is encapsulated. “Who” refers to what molecules are present in the interstellar medium (ISM) and “how” to the mechanisms that led to their formation.
Cristina Puzzarini
doaj   +1 more source

High resolution spectroscopy in the microwave and far infrared [PDF]

, 1990
High resolution rotational spectroscopy has long been central to remote sensing techniques in atmospheric sciences and astronomy. As such, laboratory measurements must supply the required data to make direct interpretation of data for instruments which ...
Pickett, Herbert M.
core   +1 more source

High-Resolution UV Spectroscopy of Molecular Complexes [PDF]

, 1992
Information on the structure, the rigidity and the intermolecular potential of molecular complexes is essential to our understanding of the physical and chemical properties of molecular complexes.
Amirav, Ben-Horin, Bernstein, Beswick, Brocks, Bösinger, Demtröder, Ernstberger, Even, Fung, Hahn, Haynam, Held, Hobza, Jortner, Kim, LaBarge, Leutwyler, Levy, Lin, Menapace, Mons, Nowak, Ohshima, Riedle, Riedle, Schmidt, Schmidt, Scoles, van Herpen, Weber, Weber, Weber, Weber, Weber   +34 more
core   +1 more source

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Predicting and verifying transition strengths from weakly bound molecules

, 2010
We investigated transition strengths from ultracold weakly bound 41K87Rb molecules produced via the photoassociation of laser-cooled atoms. An accurate potential energy curve of the excited state (3)1Sigma+ was constructed by carrying out direct ...
D. Akamatsu, G. Herzberg, J. Kobayashi, K. Aikawa, M. Hayashi, M. Ueda, R. V. Krems, S. Inouye   +7 more
core   +1 more source

Dynamic Precipitation during High‐Pressure Torsion of a Magnesium–Manganese Alloy

Advanced Engineering Materials, EarlyView.
An ultrafine‐grained alloy is produced by high‐pressure torsion of solutionized Mg–1.35 wt% Mn. Precipitation of nanometer‐scale Mn particles during deformation provides pinning sites. This prevents the formation of a bimodal grain structure and results in a finer grain size than for pure Mg.
Julian M. Rosalie, Anton Hohenwarter
wiley   +1 more source

B-type supergiants in the SMC: Rotational velocities and implications for evolutionary models [PDF]

, 2005
High-resolution spectra for 24 SMC and Galactic B-type supergiants have been analysed to estimate the contributions of both macroturbulence and rotation to the broadening of their metal lines. Two different methodologies are considered, viz.
Bouret, C. Trundle, Carroll, Carroll, Crowther, D. J. Lennon, Dufton, Ebbets, Gray, Gray, Heger, Hillier, Howarth, Howarth, Hubeny, Hubeny, Lennon, Maeder, Maeder, Maeder, Maeder, McErlean, McErlean, Meynet, Meynet, Meynet, Meynet, P. L. Dufton, R. S. I. Ryans, Ryans, S. Simón-Díaz, Santolaya-Rey, Schaller, Simón-Díaz, Simón-Díaz, Smith, Trundle, Venn   +37 more
core   +1 more source

Evaluation of the Potential of Laser Shock Peening Compared with Cold Expansion for Improving Fatigue Resistance of Riveted Lap Joints of Aerospace Grade 7175 Al Alloy

Advanced Engineering Materials, EarlyView.
This study investigates laser shock peening for enhancing fatigue performance of riveted aerospace aluminum joints. A comparative approach with cold expansion combines fatigue testing and synchrotron X‐ray methods. Integrating mechanical testing with residual stress and strain characterization provides insights into how different treatments affect the ...
Ogün Baris Tapar, David Osman Busse, Maximilian Sprengel, Domenico Furfari, Marc‐André Nielsen, Guilherme Abreu Faria, Jérémy Epp   +6 more
wiley   +1 more source

Spectroscopy of formaldehyde in the 30140-30790cm^-1 range

, 2008
Room-temperature absorption spectroscopy of formaldehyde has been performed in the 30140-30790cm^-1 range. Using tunable ultraviolet continuous-wave laser light, individual rotational lines are well resolved in the Doppler-broadened spectrum.
Apel, Avdeenkov, Avdeenkov, Bethlem, Bjorklund, Bjorklund, Bowman, Brand, Cantrell, Clark, Clouthier, Co, Demtröder, Dieke, Doyle, Gerhard Rempe, Grosjean, Herzberg, Horowitz, Horowitz, Hudson, Junglen, Krems, Markus Schenk, Martin Zeppenfeld, McQuigg, Meerts, Meerts, Meerts, Michael Motsch, Michael Schmitt, Moore, Moortgart, Motsch, Moule, Pepijn W.H. Pinkse, Pope, Rangwala, Reilly, Riedel, Smith, Spence, Townes, W. Leo Meerts, Watson, Watson, Williams, Zeppenfeld   +47 more
core   +2 more sources