Results 61 to 70 of about 11,478,449 (349)

Still water: dead zones and collimated ejecta from the impact of granular jets

, 2013
When a dense granular jet hits a target, it forms a large dead zone and ejects a highly collimated conical sheet with a well-defined opening angle. Using experiments, simulations, and continuum modeling, we find that this opening angle is insensitive to ...
Ellowitz, Jake, Guttenberg, Nicholas, Nagel, Sidney R., Turlier, Herve, Zhang, Wendy W.   +4 more
core   +2 more sources

Fate of the runner in hit-and-run collisions [PDF]

, 2019
In similar-sized planetary collisions, a significant part of the impactor often misses the target and continues downrange. We follow the dynamical evolution of "runners" from giant impacts to determine their ultimate fate. Surprisingly, runners re-impact
Asphaug, Erik, Emsenhuber, Alexandre
core   +2 more sources

Impact of a senior research thesis on students' perceptions of scientific inquiry in distinct student populations

FEBS Open Bio, EarlyView.
This study addressed how a senior research thesis is perceived by undergraduate students. It assessed students' perception of research skills, epistemological beliefs, and career goals in Biochemistry (science) and BDC (science‐business) students. Completing a thesis improved confidence in research skills, resilience, scientific identity, closed gender‐
Celeste Suart, Haley L. Zubyk, Michelle Ogrodnik, Caitlin E. Mullarkey, Felicia Vulcu   +4 more
wiley   +1 more source

Mapping erosion-corrosion of carbon steel in oil-water solutions : Effect of velocity and applied potential [PDF]

, 2012
In this study, the combined effects of erosion and corrosion on carbon steel were investigated in three environments containing crude oil, reservoir water, and a mixture of both solutions at a range of applied potentials, velocities and impact angle. The
Abdulrahman, Ghaith, Stack, Margaret
core   +1 more source

C2α‐carbanion‐protonating glutamate discloses tradeoffs between substrate accommodation and reaction rate in actinobacterial 2‐hydroxyacyl‐CoA lyase

FEBS Open Bio, EarlyView.
Enzymes of the 2‐hydroxyacyl‐CoA lyase group catalyze the condensation of formyl‐CoA with aldehydes or ketones. Thus, by structural adaptation of active sites, practically any pharmaceutically and industrially important 2‐hydroxyacid could be biotechnologically synthesized. Combining crystal structure analysis, active site mutations and kinetic assays,
Michael Zahn, Barbara Seroka, Ryszard Lazny, Zenon Lotowski, Thore Rohwerder   +4 more
wiley   +1 more source

A global fit to determine the pseudoscalar mixing angle and the gluonium content of the eta' meson

, 2009
We update the values of the eta-eta' mixing angle and of the eta' gluonium content by fitting our measurement R_phi = BR(phi to eta' gamma)/ BR(phi to eta gamma) together with several vector meson radiative decays to pseudoscalars (V to P gamma ...
A Antonelli, A Denig, A Passeri, A. De Santis, A. Di Domenico, B Sciascia, B. Di Micco, B. Di Micco, C Bini, C Bloise, C Gatti, C. Di Donato, C.E. Thomas, E Graziani, E Pasqualucci, E. De Lucia, F Ambrosino, F Archilli, F Bossi, F Ceradini, F Murtas, F Nguyen, G Bencivenni, G Capon, G Felici, G Lanfranchi, G Venanzoni, G Xu, G. De Zorzi, J Lee-Franzini, KLOE collaboration, L Tortora, M Antonelli, M Dreucci, M Jacewicz, M Martini, M Moulson, M Napolitano, M Palutan, M Testa, P Beltrame, P Branchini, P Ciambrone, P Franzini, P Gauzzi, P Massarotti, P Santangelo, P Valente, P. De Simone, R Versaci, R. Escribano, S Bertolucci, S Bocchetta, S Fiore, S Giovannella, S Meola, S Miscetti, S Müller, T Capussela, T Spadaro, T. Feldmann, V Patera, W.-M. Yao .   +62 more
core   +1 more source

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

FEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei, Fredrik Orädd, Konstantinos Magkakis, Magnus Andersson   +3 more
wiley   +1 more source

Stability of granular media impacts morphological characteristics under different impact conditions

Open Astronomy
In planetary surfaces, oblique impact events are commonplace, and their study holds significant importance for understanding planetary impact processes and aiding in the design of landers and impactors.
Wang Yifeng, Li Ran, Chi Zhipeng, Yang Hui   +3 more
doaj   +1 more source

Three-Dimensional Geometric Descent Guidance With Impact Angle Constraint

IEEE Access, 2020
A novel trajectory-shaping guidance law with impact angle constraint is proposed for attacking stationary targets in a three-dimensional environment.
Hao Zhou, Tao Cheng, Xiaoming Liu, Wanchun Chen   +3 more
doaj   +1 more source

Residual stress effects on the impact resistance and strength of fiber composites [PDF]

, 1973
Equations have been derived to predict degradation effects of microresidual stresses on impact resistance of unidirectional fiber composites.
Chamis, C. C.
core   +1 more source