Results 111 to 120 of about 93,061 (238)

Astrophysics datamining in the classroom: Exploring real data with new software tools and robotic telescopes

, 2012
Within the efforts to bring frontline interactive astrophysics and astronomy to the classroom, the Hands on Universe (HOU) developed a set of exercises and platform using real data obtained by some of the most advanced ground and space observatories. The
Almeida, Maria L. T., Barbosa, Domingos, Boudier, Thomas, Delva, Doran, Rosa, Ferlet, Roger, Gomez, Edward, Melchior, Anne-Laure, Pacôme, Pennypacker, Carl, Roberts, Sarah, Roche, Paul   +11 more
core  

A Low‐Power Radioisotope XRF Spectrometer for Detection of Light Elements on Planetary Missions

X-Ray Spectrometry, EarlyView.
ABSTRACT Current X‐ray spectrometers for in situ geochemical analysis on planetary missions typically rely either on X‐ray tubes, which demand electrical power and add mass and thermal complexity, or on alpha particle X‐ray spectrometers (APXS) that use rare 244Cm$$ {}^{244}\mathrm{Cm} $$ sources, and come with severe concerns on radiation safety and ...
Leandro Silveri, Artem Knyazev, Hashem Alaidaros, Maryam Manzoor Amanullah, Zach Ioannou, Tengiz Ibrayev, Danish Khan, Sara Leardini, Laura Manenti, Simi Maria Emilia Mangani, Safa Naseem, Sandhya Sharma, Sara Trevisan, Alia Zino, Francesco Arneodo   +14 more
wiley   +1 more source

Integrating simultaneous interfacial shear rheology with neutron reflectometry for structural and dynamic analysis of fluid interfacial systems

Journal of Applied Crystallography, EarlyView.
We present a new setup at the FIGARO horizontal neutron reflectometer enabling simultaneous measurement of the structural and mechanical properties of liquid interfaces, combining neutron reflectometry with interfacial shear rheology.The study of the structure and mechanical properties of complex fluid interfaces has attracted growing interest in ...
Pablo Sánchez-Puga, Javier Tajuelo, Javier Carrascosa-Tejedor, Miguel Ángel Rubio, Philipp Gutfreund, Armando Maestro   +5 more
wiley   +1 more source

mcstas_gisans: combining ray tracing with the distorted‐wave Born approximation using McStas and BornAgain for virtual GISANS experiments

Journal of Applied Crystallography, EarlyView.
mcstas_gisans is a Python‐based framework that enables simulation of grazing‐incidence small‐angle neutron scattering experiments by integrating McStas and BornAgain into a single workflow.The mcstas_gisans framework is a collection of Python scripts and modules to facilitate the simulation of grazing‐incidence small‐angle neutron scattering (GISANS ...
Milán Klausz, Artur Glavic, Sebastian Köhler, Thomas Arnold, Nicolò Paracini, Philipp Gutfreund, Marité Cárdenas, Max Wolff, Tommy Nylander   +8 more
wiley   +1 more source

Criteria for selecting the Paganin‐filter reconstruction parameter in X‐ray phase‐contrast tomography

Journal of Synchrotron Radiation, EarlyView.
The development of a criterion for near‐optimal selection of the Paganin‐filter parameter based on noise power analysis measured via an image's noise power spectrum is described.The Paganin filter, widely employed in propagation‐based phase‐contrast X‐ray computed tomography with synchrotron light, attenuates phase effects and suppresses high‐frequency
Eduardo X. Miqueles, Everton L. de Oliveira, Murilo Carvalho, David M. Paganin   +3 more
wiley   +1 more source

Fourteen‐analyser high‐resolution hard X‐ray emission spectrometer at I20 beamline at Diamond Light Source

Journal of Synchrotron Radiation, EarlyView.
A high‐efficiency 14‐analyser X‐ray emission spectrometer that offers novel capabilities has been developed for I20‐Scanning at Diamond Light Source.We report the technical design, implementation and operation of a newly developed X‐ray emission spectrometer on the I20 beamline at Diamond Light Source.
Shusaku Hayama, David Butler, Leo Cahill, J. Frederick W. Mosselmans, Steven Richards, Silvia Ramos, Iain Hall, Huw Shorthouse, Sofia Diaz-Moreno   +8 more
wiley   +1 more source

Unraveling the symmetry of Al5C3N

Acta Crystallographica Section B, EarlyView.
From experimental and theoretical techniques employed in this thorough reexamination of the structure of Al5C3N, the crystal structure is better described in centrosymmetric space group P63/mmc (No. 194) rather than in the previously reported noncentrosymmetric space group P63mc (No. 186).High‐temperature ceramic compound Al5C3N belongs to the scarcely
Vitalii Shtender, Chin Shen Ong, Pedro Berastegui, Olivier Donzel-Gargand, Johan Cedervall, Charles Hervoches, Premek Beran, Olle Eriksson, Ulf Jansson   +8 more
wiley   +1 more source

New opportunities for grassland species in warming temperate winters

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Temperate winters are getting warmer, the length of the growing season is increasing and mid‐winter fluctuations of warm and freezing temperatures are more frequent. Although typically winter dormant, some herbaceous perennials can maintain or grow green leaves during ...
F. Curtis Lubbe, Andrea Kučerová, Martin Bitomský, Jitka Klimešová   +3 more
wiley   +1 more source

First submillimeter lights from Dome A: Tracing the carbon cycle in the feedback of massive stars. [PDF]

Sci Adv
Gong Y, Zhong J, Ren Y, Zhang Y, Liu D, Ao Y, Yao Q, Zhang W, Miao W, Lin Z, Duan W, Liu D, Zhou K, Liu J, Wang Z, Jin J, Zhang K, Wu F, Li J, Liu B, Zhang X, Luo Z, Wang J, Hao H, Lu X, Xie S, Quan J, Liu Y, Liang J, Deng X, Jiang J, Li L, Guo L, Ji T, Jiang P, Zhang Y, Shu C, Neupane S, Mao R, Shi S, Li J.   +40 more
europepmc   +1 more source

‘Mere Amateurs’? Elementary Teachers and the Making of Scientific Authority in the British Child Study Movement

History, EarlyView.
Abstract This article offers new perspectives on the relationship between elementary teaching, scientific expertise and the professionalization of the human sciences. Previous scholarship has demonstrated the ready existence of ‘amateur’ science societies in the nineteenth century where cross‐class exchanges were common.
Julia Gustavsson
wiley   +1 more source