Results 31 to 40 of about 2,826,933 (241)

Maximum Coronal Mass Ejection Speed as an Indicator of Solar and Geomagnetic Activities

, 2011
We investigate the relationship between the monthly averaged maximal speeds of coronal mass ejections (CMEs), international sunspot number (ISSN), and the geomagnetic Dst and Ap indices covering the 1996-2008 time interval (solar cycle 23).
A. Kilcik, A. Ozguc, Abramenko, Abramenko, Box, Durbin, Gopalswamy, Gopalswamy, Gopalswamy, J. P. Rozelot, Kilcik, Legrand, Luhmann, Moon, N. Gopalswamy, P. R. Goode, Qiu, Ramesh, Sugiura, V. Abramenko, V. B. Yurchyshyn, Zhang   +21 more
core   +3 more sources

Signal‐to‐noise and spatial resolution in in‐line imaging. 3. Optimization using a simple model

Journal of Synchrotron Radiation, EarlyView.
Geometrical magnification and X‐ray energy are optimized with respect to spatial resolution, contrast, noise, radiation dose and other image quality characteristics. The optimization is performed using a simple theoretical model of a homogeneous edge feature embedded in a bulk uniform sample, and the resulting generic analytical expressions for image ...
Timur E. Gureyev, David M. Paganin, Harry M. Quiney   +2 more
wiley   +1 more source

Origin of Life and Birth of Life ― An Open Access Journal

Life, 2011
Our publishing company MDPI (Multidisciplinary Digital Publishing Institute) planned to launch this journal Life (ISSN 2075-1729) since June 2009. Life science as a topic covers a very broad area.
Shu-Kun Lin
doaj   +1 more source

Message from the Editor-in-Chief of International Journal of Science Annals, Vol. 4, No. 1, 2021

International Journal of Science Annals, 2021
Dear Readers and Authors, It is a great honor for us to publish the International Journal of Science Annals (IJSA) for the fourth year in a row. IJSA is an academic periodical peer-reviewed indexed Journal that provides a scientific platform for ...
Yuriy Borysovych Melnyk
doaj   +1 more source

Simultaneous lasing of Ni Kα and Cu Kα lasers from an alloy foil irradiated with an intense X‐ray free‐electron laser pulse

Journal of Synchrotron Radiation, EarlyView.
We successfully achieved simultaneous lasing of 7.48 keV Ni Kα1 and 8.05 keV Cu Kα1 emissions using an intense X‐ray free‐electron laser (XFEL) pulse. This achievement – the realization of simultaneous two‐color X‐ray lasing using a single‐color XFEL pulse – is expected to advance the development of X‐ray lasers and their applications.We report the ...
Yuichi Inubushi, Gota Yamaguchi, Jumpei Yamada, Yuya Kubota, Ichiro Inoue, Taito Osaka, Makina Yabashi   +6 more
wiley   +1 more source

Time‐resolved 3D imaging opportunities with XMPI at ForMAX

Journal of Synchrotron Radiation, EarlyView.
The first implementation of X‐ray multi‐projection imaging (XMPI) at the ForMAX beamline (MAX IV) enables the acquisition of multiple projections simultaneously without requiring sample rotation. This approach facilitates volumetric studies of fast dynamics at frame rates of 12.5 kHz with micrometre resolution, with the potential of even higher speeds,
Julia Katharina Rogalinski, Zisheng Yao, Yuhe Zhang, Zhe Hu, Korneliya Gordeyeva, Tomas Rosén, Daniel Söderberg, Andrea Mazzolari, Jackson da Silva, Vahid Haghighat, Samuel A. McDonald, Kim Nygård, Eleni Myrto Asimakopoulou, Pablo Villanueva-Perez   +13 more
wiley   +1 more source

Resumed Publication of Pharmaceuticals in 2009

Pharmaceuticals, 2009
After a five year hiatus, we are pleased to announce the resumption of publication of the MDPI journal Pharmaceuticals (ISSN 1424-8247). First launched in 2004, few suitable papers were submitted and only one was published [1], before our limited ...
Shu-Kun Lin, Derek J. McPhee
doaj   +1 more source

The new edition of the ISSN international standard makes life easier for the serials community

Serials: The Journal for the Serials Community, 2008
A new edition of the ISO international standard on the International Standard Serial Number (ISSN) – ISO 3297: 2007 – has just been published. The main new feature is the Linking ISSN or ISSN-L.The ISSN-L is a mechanism which enables collocation or linking among different media versions of a continuing resource.
openaire   +2 more sources

Errors in reconstruction of dichroic X‐ray orientation tomography due to polarization rotation of the incident beam

Journal of Synchrotron Radiation, EarlyView.
Linear dichroic X‐ray tomography is a technique in which the linear dichroism of anisotropic materials is used to image crystal orientation in three dimensions. We show that the reconstruction of tomograms is subject to errors due to the change in polarization on propagation through the material and propose strategies for mitigating these effects ...
Matthew A. Marcus, Harlan Heilman, Kas Andrle, Jayden Plumb   +3 more
wiley   +1 more source

Framework for X‐ray mirror surface shape fitting

Journal of Synchrotron Radiation, EarlyView.
The closed‐form expressions for elliptic cylinders, hyperbolic cylinders, ellipsoids, hyperboloids, and diaboloids used for X‐ray mirror surface shapes are summarized. Additionally, a four‐layer framework to fit the measured surface shape data in slope or height for convenient X‐ray mirror surface characterization is proposed.For accurate ...
Lei Huang, Ruochen Xu, Tianyi Wang, Jumpei Yamada, Joseph Dvorak, Corey Austin, Albert Van Eeckhout, Josep Nicolàs Roman, Kenneth Goldberg, Mourad Idir   +9 more
wiley   +1 more source