Results 31 to 40 of about 2,383,695 (299)

Mix-and-diffuse serial synchrotron crystallography

IUCrJ, 2017
Unravelling the interaction of biological macromolecules with ligands and substrates at high spatial and temporal resolution remains a major challenge in structural biology.
Kenneth R. Beyerlein, Dennis Dierksmeyer, Valerio Mariani, Manuela Kuhn, Iosifina Sarrou, Angelica Ottaviano, Salah Awel, Juraj Knoska, Silje Fuglerud, Olof Jönsson, Stephan Stern, Max O. Wiedorn, Oleksandr Yefanov, Luigi Adriano, Richard Bean, Anja Burkhardt, Pontus Fischer, Michael Heymann, Daniel A. Horke, Katharina E. J. Jungnickel, Elena Kovaleva, Olga Lorbeer, Markus Metz, Jan Meyer, Andrew Morgan, Kanupriya Pande, Saravanan Panneerselvam, Carolin Seuring, Aleksandra Tolstikova, Julia Lieske, Steve Aplin, Manfred Roessle, Thomas A. White, Henry N. Chapman, Alke Meents, Dominik Oberthuer   +35 more
doaj   +1 more source

Time-Resolved Studies of a Rolled-Up Semiconductor Microtube Laser

, 2009
We report on lasing in rolled-up microtube resonators. Time-resolved studies on these semiconductor lasers containing GaAs quantum wells as optical gain material reveal particularly fast turn-on-times and short pulse emissions above the threshold.
Fehringer, S., Heitmann, D., Heyn, Ch., Kipp, T., Korn, T., Sauer, M., Schüller, C., Stemmann, A., Strelow, Ch.   +8 more
core   +1 more source

Ultraviolet relaxation dynamics in uracil: Time-resolved photoion yield studies using a laser-based thermal desorption source [PDF]

, 2018
Wavelength-dependent measurements of the RNA base uracil, undertaken with nanosecond ultraviolet laser pulses, have previously identified a fragment at m/z = 84 (corresponding to the C3H4N2O+ ion) at excitation wavelengths ≤232 nm.
Bockova, Jana, Crane, Stuart W., De Camillis, Simone, Eden, Samuel, Ghafur, Omair, Greenwood, Jason B., Rebelo, Andre, Ryszka, Michal, Saalbach, Lisa, Townsend, Dave   +9 more
core   +2 more sources

Probing the Superfluid to Mott Insulator Transition at the Single Atom Level [PDF]

, 2010
Quantum gases in optical lattices offer an opportunity to experimentally realize and explore condensed matter models in a clean, tunable system. We investigate the Bose-Hubbard model on a microscopic level using single atom-single lattice site imaging ...
Bakr, Waseem S., Foelling, Simon, Gillen, Jonathon I., Greiner, Markus, Ma, Ruichao, Peng, Amy, Pollet, Lode, Simon, Jonathan, Tai, M. Eric   +8 more
core   +2 more sources

Microcrystals in structural biology: small samples, big insights

IUCrJ
Microcrystals are transforming structural biology by enabling high-resolution structures and time-resolved insights from samples once deemed too small. This commentary highlights recent advances in microfocus X-ray and MicroED methods, emphasizing their ...
Dominik Oberthür
doaj   +1 more source

Time-Resolved Studies of Stick-Slip Friction in Sheared Granular Layers

, 1998
Sensitive and fast force measurements are performed on sheared granular layers undergoing stick-slip motion, along with simultaneous imaging. A full study has been done for spherical particles with a +-20% size distribution.
A. Bak, A. Demirel, A. Johansen, A. Kudrolli, B. E. Shaw, B. Miller, B. N. J. Persson, C. Daly, C. G. Sammis, C. H. Scholz, C. Marone, C.-h. Liu, D. Cule, D. G. Wang, D. M. Hanes, D. M. Tolstoi, D. R. Scott, E. Kumacheva, E. Rabinowicz, F. Heslot, F. Radjai, F.-J. Elmer, G. H. Ristow, H. Jaeger, H. M. Jaeger, J. A. C. Martins, J. M. Carlson, J. P. Gollub, J. R. Rice, K. Heki, L. M. Jones, M. G. Rozman, M. L. Gee, N. M. Beeler, O. Pouliquen, P. A. Thompson, P. A. Thompson, S. B. Savage, S. Nasuno, S. Nasuno, T. Baumberger, T. Baumberger, V. K. Horváth, Y. Zhang   +43 more
core   +2 more sources

Real-time observation of intramolecular proton transfer in the electronic ground state of chloromalonaldehyde: An ab initio study of time-resolved photoelectron spectra [PDF]

, 2007
The authors report on studies of time-resolved photoelectron spectra of intramolecular proton transfer in the ground state of chloromalonaldehyde, employing ab initio photoionization matrix elements and effective potential surfaces of reduced ...
Arasaki, Yasuki, McKoy, Vincent, Takatsuka, Kazuo, Ushiyama, Hiroshi, Varella, Márcio T. do N., Wang, Kwanghsi   +5 more
core   +1 more source

Time-resolved X-ray diffraction studies of mineral transformations in aqueous solutions [PDF]

Structural Dynamics
The time-resolved X-ray diffraction (TRXRD) technique enables in-situ studies of mineral transformations in aqueous solutions with a time resolution of ∼30 seconds.
Dong Youn Chung, Peter J. Heaney, Joanne E. Stubbs, Peter J. Eng   +3 more
doaj   +1 more source

Spin- and time-resolved photoemission studies of thin Co2FeSi Heusler alloy films

, 2006
We have studied the possibly half metallic Co2FeSi full Heusler alloy by means of spin- and time-resolved photoemission spectroscopy. For excitation, the second and fourth harmonic of femtosecond Ti:sapphire lasers were used, with photon energies of 3.1 ...
Aeschlimann, Aeschlimann, Attema, J.-P. Wüstenberg, Kandpal, Kolev, M. Aeschlimann, M. Bauer, M. Cinchetti, M. Sánchez Albaneda, Schmidt, Schneider, Wang, Wurmehl, Žutic   +14 more
core   +1 more source

Time resolved studies of edge modes in magnetic nanoelements (invited) [PDF]

, 2013
Copyright © 2006 American Institute of PhysicsMicromagnetic simulations have been performed to investigate the frequencies and relative amplitudes of resonant magnetic modes within nanomagnetic elements of varying size that have been previously studied ...
Childress, J.R., Hicken, R.J., Katine, J.A., Keatley, Paul Steven, Kruglyak, V.V.   +4 more
core   +1 more source