Results 11 to 20 of about 5,609,446 (239)

Alvarez varifocal X-ray lens

Nature Communications, 2023
Visible light optical elements such as lenses and mirrors have counterparts for X-rays. In the visible regime, a variable focusing power can be achieved by an Alvarez lens which consists of a pair of inline planar refractors with a cubic thickness ...
Vishal Dhamgaye, David Laundy, Hossein Khosroabadi, Thomas Moxham, Sara Baldock, Oliver Fox, Kawal Sawhney   +6 more
doaj   +1 more source

A neural network model of a quasiperiodic elliptically polarizing undulator in universal mode

Journal of Synchrotron Radiation, 2022
Machine learning has recently been applied and deployed at several light source facilities in the domain of accelerator physics. Here, an approach based on machine learning to produce a fast-executing model is introduced that predicts the polarization ...
Ryan Sheppard, Cameron Baribeau, Tor Pedersen, Mark Boland, Drew Bertwistle   +4 more
doaj   +1 more source

Multiple light source detection. [PDF]

, 2004
Published ...
Bouganis, CS, Brookes, M
core   +1 more source

ATR-FTIR spectroscopy reveals involvement of lipids and proteins of intact pea pollen grains to heat stress tolerance

Frontiers in Plant Science, 2014
With climate change, pea will be more frequently subjected to heat stress in semi-arid regions like Saskatchewan during flowering. The pollen germination percentage of two pea cultivars was reduced by heat stress (36°C) with an important decrease in ...
Rachid eLahlali, Yunfei eJiang, Saroj eKumar, Chithra eKarunakaran, Xia eLiu, Ferenc eBorondics, Emil eHallin, Rosalind eBueckert   +7 more
doaj   +1 more source

Structural insights into functional properties of the oxidized form of cytochrome c oxidase

Nature Communications, 2023
Cytochrome c oxidase (CcO) is an essential enzyme in mitochondrial and bacterial respiration. It catalyzes the four-electron reduction of molecular oxygen to water and harnesses the chemical energy to translocate four protons across biological membranes.
Izumi Ishigami, Raymond G. Sierra, Zhen Su, Ariana Peck, Cong Wang, Frederic Poitevin, Stella Lisova, Brandon Hayes, Frank R. Moss, Sébastien Boutet, Robert E. Sublett, Chun Hong Yoon, Syun-Ru Yeh, Denis L. Rousseau   +13 more
doaj   +1 more source

Fourth-generation light sources

IUCrJ, 2023
IUCrJ 10(3), 246 - 247 (2023).
openaire   +4 more sources

Light Sources and Lighting Circuits

Journal of Light & Visual Environment, 2008
According to machinery statistics of the Ministry of Economy, Trade and Industry, the quantity of electric lamps produced in Japan was 613,000,000 (68.1% compared to the previous year). Of these, 73,000,000 were general lamps (88.1% compared to the previous year) and 32,000,000 were halogen lamps (79.3% compared to the previous year).
Hisashi HONDA, Takumi SUWA, Takeo YASUDA, Yoshihiko OHTANI, Akiyoshi MAEHARA, Atsunori OKADA, Naoki KOMATSU, Tomoaki MANNAMI   +7 more
openaire   +5 more sources

A Novel Dual Air-Bearing Fixed-χ Diffractometer for Small-Molecule Single-Crystal X-ray Diffraction on Beamline I19 at Diamond Light Source

Crystals, 2017
Herein, we describe the development of a novel dual air-bearing fixed-χ diffractometer for beamline I19 at Diamond Light Source. The diffractometer is designed to facilitate the rapid data collections possible with a Dectris Pilatus 2M pixel-array photon-
David . R Allan, Harriott Nowell, Sarah A. Barnett, Mark R. Warren, Adrian Wilcox, Jeppe Christensen, Lucy K. Saunders, Andrew Peach, Mark T. Hooper, Ljubo Zaja, Suren Patel, Leo Cahill, Russell Marshall, Steven Trimnell, Andrew J. Foster, Trevor Bates, Simon Lay, Mark A. Williams, Paul V. Hathaway, Graeme Winter, Markus Gerstel, Ron W. Wooley   +21 more
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Golden ratio in venation patterns of dragonfly wings

Scientific Reports, 2023
The vein pattern in insect wings allows this lightweight structure to carry multiple biological functions. Here, an investigation of the angular distribution of the vein struts in dragonfly wings revealed that the golden angle or golden ratio dominates ...
Keene Lu, Samson Shen, Lisa M. Miller, Xiaojing Huang   +3 more
doaj   +1 more source

Robotic sample changers for macromolecular X-ray crystallography and biological small-angle X-ray scattering at the National Synchrotron Light Source II. Corrigendum

Journal of Synchrotron Radiation, 2022
A correction in the paper by Lazo et al. [(2021). J. Synchrotron Rad. 28, 1649–1661] is made.
Edwin O. Lazo, Stephen Antonelli, Jun Aishima, Herbert J. Bernstein, Dileep Bhogadi, Martin R. Fuchs, Nicolas Guichard, Sean McSweeney, Stuart Myers, Kun Qian, Dieter Schneider, Grace Shea-McCarthy, John Skinner, Robert Sweet, Lin Yang, Jean Jakoncic   +15 more
doaj   +1 more source