ECHIDNA: a decade of high-resolution neutron powder diffraction at OPAL

2018 ◽  
Vol 51 (6) ◽  
pp. 1597-1604 ◽  
Author(s):  
Maxim Avdeev ◽  
James R. Hester
Keyword(s):  
High Resolution ◽  
Powder Diffraction ◽  
Research Reactor ◽  
Neutron Powder Diffraction ◽  
Quality Data ◽  
Current Status ◽  
Structural Studies ◽  
High Quality ◽  
High Quality Data ◽  
Neutron Powder Diffractometer

The ECHIDNA high-resolution neutron powder diffractometer at the 20 MW OPAL research reactor in Australia produces high-quality data for a broad spectrum of crystal and magnetic structural studies. The paper presents an overview of the current status of the hardware, latest developments in data-reduction software, statistics on instrument usage and the user programme, and instrument limitations.

scholarly journals Intact NMR spectroscopy: slow high-resolution magic angle spinning chemical shift imaging

The Analyst ◽  
2020 ◽  
Vol 145 (7) ◽  
pp. 2520-2524 ◽  
Author(s):  
Covadonga Lucas-Torres ◽  
Alan Wong
Keyword(s):  
Nmr Spectroscopy ◽  
High Resolution ◽  
Chemical Shift ◽  
Chemical Shift Imaging ◽  
Magic Angle Spinning ◽  
Quality Data ◽  
Magic Angle ◽  
High Quality ◽  
High Quality Data ◽  
Angle Spinning

A slow sample spinning strategy was implemented and evaluated as a highly informative NMR profiling approach for intact specimens, with high quality data and feasibility.

Design and performance of a novel neutron powder diffractometer: PEARL at TU Delft

2016 ◽  
Vol 49 (5) ◽  
pp. 1398-1401 ◽  
Author(s):  
L. van Eijck ◽  
L. D. Cussen ◽  
G. J. Sykora ◽  
E. M. Schooneveld ◽  
N. J. Rhodes ◽  
...  
Keyword(s):  
Powder Diffraction ◽  
High Performance ◽  
Research Reactor ◽  
Neutron Powder Diffraction ◽  
Powder Diffractometer ◽  
University Of Technology ◽  
Neutron Powder Diffractometer ◽  
And Performance

The performance of the new neutron powder diffraction instrument PEARL that is installed at the research reactor of Delft University of Technology is reported. It is based on the optimization concepts developed by Cussen [Nucl. Instrum. Methods Phys. Res. Sect. A (2007), 583, 394–406], which lead to high performance competing with existing constant-wavelength neutron powder diffractometers, despite the relatively low source brightness of the 2 MW reactor of Delft University of Technology.

scholarly journals Prisma the Instruments

1993 ◽  
Vol 137 ◽  
pp. 672-674
Author(s):  
Andrew Jones
Keyword(s):  
High Resolution ◽  
Stellar Structure ◽  
Quality Data ◽  
The Sun ◽  
Calibration Point ◽  
High Quality ◽  
High Quality Data ◽  
X Ray ◽  
Very High ◽  
Selection Of

Our understanding of Solar structure has increased dramatically in the last couple of decades thanks mainly to the opening of new windows of observation providing high quality data to theoreticians with access to powerful computing facilities. Two of the new windows were UV and X-ray images of the Sun, allowing a detailed view of the upper solar atmosphere, and the development of very high resolution spectrometers allowing us to exploit the solar oscillations to probe the internal structure of the Sun. It is the goal of PRISMA to extend these techniques to other stars, which using the Sun as a calibration point will allow us to explore stellar structure and evolution in ways not possible now.In this poster I will present a possible selection of instruments able to achieve this goal, and explain some of the rationale in their design. A more general overview is presented by T. Appouchaux also in these proceedings. It must be stressed that these are not the definitive instruments to be flown on PRISMA, but rather result from a study to show the feasibility of such a mission. Should PRISMA be chosen as the next ESA medium sized mission, an ‘Announcement of Opportunity’ wiH be issued by ESA and the responses of all people interested in constructing the instrument will be considered.

scholarly journals Assessing the effects of using high-quality data and high-resolution models in valuing flood protection services of mangroves

PLoS ONE ◽  
2019 ◽  
Vol 14 (8) ◽  
pp. e0220941 ◽  
Author(s):  
Pelayo Menéndez ◽  
Iñigo J. Losada ◽  
Saúl Torres-Ortega ◽  
Alexandra Toimil ◽  
Michael W. Beck
Keyword(s):  
High Resolution ◽  
Flood Protection ◽  
Quality Data ◽  
High Quality ◽  
High Quality Data ◽  
High Resolution Models

scholarly journals The Sun at high resolution: first results from the Sunrise mission

2010 ◽  
Vol 6 (S273) ◽  
pp. 226-232 ◽  
Author(s):  
S. K. Solanki ◽  
P. Barthol ◽  
S. Danilovic ◽  
A. Feller ◽  
A. Gandorfer ◽  
...  
Keyword(s):  
High Resolution ◽  
Solar Observatory ◽  
Quality Data ◽  
The Sun ◽  
Stabilization System ◽  
High Quality ◽  
High Quality Data ◽  
Image Stabilization ◽  
Solar Convection ◽  
First Results

AbstractThe Sunrise balloon-borne solar observatory consists of a 1m aperture Gregory telescope, a UV filter imager, an imaging vector polarimeter, an image stabilization system and further infrastructure. The first science flight of Sunrise yielded high-quality data that reveal the structure, dynamics and evolution of solar convection, oscillations and magnetic fields at a resolution of around 100 km in the quiet Sun. Here we describe very briefly the mission and the first results obtained from the Sunrise data, which include a number of discoveries.

Using uncrewed aerial vehicles for wider coverage for geophysical observations

2021 ◽  
Author(s):  
Jouni Envall ◽  
Eija Tanskanen
Keyword(s):  
Quality Data ◽  
Current Status ◽  
Data Series ◽  
Measurement Instruments ◽  
High Quality ◽  
High Quality Data ◽  
Geophysical Observatory ◽  
Aerial Vehicles ◽  
Geophysical Measurement ◽  
Future Plans

<p>Sodankylä Geophysical Observatory (SGO) has conducted research and provided high quality data series for numerous geophysical disciplines for more than a hundred years. As the next step in developing SGO’s measurement network, we are developing capabilities to operate uncrewed aerial vehicles (UAV’s), which can be equipped with a wide variety of geophysical measurement instruments, such as magnetometers, radars or imaging devices. During the first phase we will build a fleet of multirotor drones with variable characteristics. Any individual aircraft can be optimized for e.g. covering wide areas, covering high altitudes, or lifting heavy instrument payloads. In the next phase the coverage of the measurements will be further expanded by use of fixed-wing aircraft, helium balloons and rockets. In this presentation we will give an overview of the current status of the aircraft and supporting instrumentation. Also, future plans and objectives are discussed.</p>

Collecting High-Quality Data

2018 ◽  
Author(s):  
Mary Kay Gugerty ◽  
Dean Karlan
Keyword(s):  
Data Collection ◽  
Social Desirability ◽  
Measurement Errors ◽  
Monitoring And Evaluation ◽  
Quality Data ◽  
Social Desirability Bias ◽  
High Quality ◽  
High Quality Data ◽  
Evaluation Systems ◽  
Demand Effect

Without high-quality data, even the best-designed monitoring and evaluation systems will collapse. Chapter 7 introduces some the basics of collecting high-quality data and discusses how to address challenges that frequently arise. High-quality data must be clearly defined and have an indicator that validly and reliably measures the intended concept. The chapter then explains how to avoid common biases and measurement errors like anchoring, social desirability bias, the experimenter demand effect, unclear wording, long recall periods, and translation context. It then guides organizations on how to find indicators, test data collection instruments, manage surveys, and train staff appropriately for data collection and entry.

Developmental Impacts of Remittances on Migrant-Sending Households: Micro-Level Evidence from Punjab, Pakistan

2019 ◽  
Vol 14 (3) ◽  
pp. 338-366
Author(s):  
Kashif Imran ◽  
Evelyn S. Devadason ◽  
Cheong Kee Cheok
Keyword(s):  
Human Development ◽  
Human Development Index ◽  
Quality Data ◽  
High Quality ◽  
High Quality Data ◽  
Development Index ◽  
Policy Interventions ◽  
Education And Health ◽  
Micro Level ◽  
The Government

This article analyzes the overall and type of developmental impacts of remittances for migrant-sending households (HHs) in districts of Punjab, Pakistan. For this purpose, an HH-based human development index is constructed based on the dimensions of education, health and housing, with a view to enrich insights into interactions between remittances and HH development. Using high-quality data from a HH micro-survey for Punjab, the study finds that most migrant-sending HHs are better off than the HHs without this stream of income. More importantly, migrant HHs have significantly higher development in terms of housing in most districts of Punjab relative to non-migrant HHs. Thus, the government would need policy interventions focusing on housing to address inequalities in human development at the district-HH level, and subsequently balance its current focus on the provision of education and health.

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