941 research outputs found
Calibration Instrumentation for the Hydrogen Intensity and Real-Time Analysis eXperiment
The Hydrogen Intensity and Real-time Analysis eXperiment (HIRAX) is a 21 cm neutral hydrogen intensity mapping experiment to be deployed in the Karoo Desert in South Africa. It aims to improve constraints on the dark energy equation of state through measurements of large-scale structure at high redshift, while doubling as a state-of-the-art fast radio burst (FRB) detector. This dissertation focuses on two aspects of the HIRAX instrument characterization: (1) optimizing the signal-to-noise of antennas, through the design and implementation of a custom test-bed for determining the noise temperature of radio antennas operating between 400-800MHz, and (2) mapping the HIRAX telescope beam pattern with a custom drone calibration system. The work described is critical to HIRAX\u27s development, both by informing final antenna design and providing the tools to generate beam maps that will factor into all cosmological analysis
Aeronautical Engineering: A special bibliography with indexes, supplement 54
This bibliography lists 316 reports, articles, and other documents introduced into the NASA scientific and technical information system in January 1975
Disruptive Technologies with Applications in Airline & Marine and Defense Industries
Disruptive Technologies With Applications in Airline, Marine, Defense Industries is our fifth textbook in a series covering the world of Unmanned Vehicle Systems Applications & Operations On Air, Sea, and Land. The authors have expanded their purview beyond UAS / CUAS / UUV systems that we have written extensively about in our previous four textbooks. Our new title shows our concern for the emergence of Disruptive Technologies and how they apply to the Airline, Marine and Defense industries. Emerging technologies are technologies whose development, practical applications, or both are still largely unrealized, such that they are figuratively emerging into prominence from a background of nonexistence or obscurity. A Disruptive technology is one that displaces an established technology and shakes up the industry or a ground-breaking product that creates a completely new industry.That is what our book is about. The authors think we have found technology trends that will replace the status quo or disrupt the conventional technology paradigms.The authors have collaborated to write some explosive chapters in Book 5:Advances in Automation & Human Machine Interface; Social Media as a Battleground in Information Warfare (IW); Robust cyber-security alterative / replacement for the popular Blockchain Algorithm and a clean solution for Ransomware; Advanced sensor technologies that are used by UUVs for munitions characterization, assessment, and classification and counter hostile use of UUVs against U.S. capital assets in the South China Seas. Challenged the status quo and debunked the climate change fraud with verifiable facts; Explodes our minds with nightmare technologies that if they come to fruition may do more harm than good; Propulsion and Fuels: Disruptive Technologies for Submersible Craft Including UUVs; Challenge the ammunition industry by grassroots use of recycled metals; Changing landscape of UAS regulations and drone privacy; and finally, Detailing Bioterrorism Risks, Biodefense, Biological Threat Agents, and the need for advanced sensors to detect these attacks.https://newprairiepress.org/ebooks/1038/thumbnail.jp
Enabling the Development and Implementation of Digital Twins : Proceedings of the 20th International Conference on Construction Applications of Virtual Reality
Welcome to the 20th International Conference on Construction Applications of Virtual Reality (CONVR 2020). This year we are meeting on-line due to the current Coronavirus pandemic. The overarching theme for CONVR2020 is "Enabling the development and implementation of Digital Twins". CONVR is one of the world-leading conferences in the areas of virtual reality, augmented reality and building information modelling. Each year, more than 100 participants from all around the globe meet to discuss and exchange the latest developments and applications of virtual technologies in the architectural, engineering, construction and operation industry (AECO). The conference is also known for having a unique blend of participants from both academia and industry. This year, with all the difficulties of replicating a real face to face meetings, we are carefully planning the conference to ensure that all participants have a perfect experience. We have a group of leading keynote speakers from industry and academia who are covering up to date hot topics and are enthusiastic and keen to share their knowledge with you. CONVR participants are very loyal to the conference and have attended most of the editions over the last eighteen editions. This year we are welcoming numerous first timers and we aim to help them make the most of the conference by introducing them to other participants
you are variations
you are variations is a ten-year-long study of tree water-cycles
in which scientific climate change research has provided environmental data on
sap flow that is here transposed into a musical score. The score is enacted live
â including in-situ â in collaboration with electro-acoustic ensembles. By
turning climate data into sound-performances, the research draws attention
to the sophisticated energy balance of trees under changing environmental
conditions, contributing to scientific research concerned with climate futures,
and evidences a committed stance in art as sustained experimental (re-)search
into transformative power.
Inspired ecopolitically by Isabelle Stengers, Donna J. Haraway and
Bruno Latour, aesthetically by Pauline Oliveros and Catherine Christer Hennix et.
al., the project exercises how to think and work across wounded worlds together.
In gathering disciplines that are unfamiliar to each other â linking environmental,
cultural and mental ecologies â the project reveals âdifferenceâ, theoretically
drawing on the work of Alfred North Whitehead, FĂ©lix Guattari, Gilles Deleuze,
Jean-Luc Nancy and Elizabeth Grosz.
The key methodology, âecology of translationâ, incites gaps and transpositions
as acts of mediation in a complex process of evolving relationalities between
art-music, science and the climate. It conceives of âtrans-lationâ as human,
and more-than-human activity; creative in the making of a âre-lational, resonant
kinshipâ, based not on sameness, but alterity.
It is the experience of wholeness that is the significant outcome
of this transdisciplinary practice across a vast range of contemporary climate
urgencies. The conclusion elicits a new term for the felt experience of wholeness
instantiated by you are variations performances: /wi/. Addressing the problematic
term âweâ, exclusive in its presupposed inclusivity, /wi/ denotes the experiential
communion of tree, you and self, exemplified in the poetic, ecopolitical
movement the research brought about: in asking âCan we learn to listen to
a tree?â you are variations advocates how to become /wi/ with the world
The High-Altitude Water Cherenkov (HAWC) Observatory in M\'exico: The Primary Detector
The High-Altitude Water Cherenkov (HAWC) observatory is a second-generation
continuously operated, wide field-of-view, TeV gamma-ray observatory. The HAWC
observatory and its analysis techniques build on experience of the Milagro
experiment in using ground-based water Cherenkov detectors for gamma-ray
astronomy. HAWC is located on the Sierra Negra volcano in M\'exico at an
elevation of 4100 meters above sea level. The completed HAWC observatory
principal detector (HAWC) consists of 300 closely spaced water Cherenkov
detectors, each equipped with four photomultiplier tubes to provide timing and
charge information to reconstruct the extensive air shower energy and arrival
direction. The HAWC observatory has been optimized to observe transient and
steady emission from sources of gamma rays within an energy range from several
hundred GeV to several hundred TeV. However, most of the air showers detected
are initiated by cosmic rays, allowing studies of cosmic rays also to be
performed. This paper describes the characteristics of the HAWC main array and
its hardware.Comment: Accepted for publications in Nuclear Inst. and Methods in Physics
Research, A (2023) 168253 (
https://www.sciencedirect.com/science/article/abs/pii/S0168900223002437 ); 39
pages, 14 Figure
Mapping Crisis: Participation, Datafication, and Humanitarianism in the Age of Digital Mapping
This book brings together critical perspectives on the role that mapping people, knowledges and data now plays in humanitarian work, both in cartographic terms and through data visualisations. Since the rise of Google Earth in 2005, there has been an explosion in the use of mapping tools to quantify and assess the needs of the poor, including those affected by climate change and the wider neo-liberal agenda. Yet, while there has been a huge upsurge in the data produced around these issues, the representation of people remains questionable. Some have argued that representation has diminished in humanitarian crises as people are increasingly reduced to data points. In turn, this data becomes ever more difficult to analyse without vast computing power, leading to a dependency on the old colonial powers to refine the data of the poor, before selling it back to them. These issues are not entirely new, and questions around representation, participation and humanitarianism can be traced back beyond the speeches of Truman, but the digital age throws these issues back to the fore, as machine learning, algorithms and big data centres take over the process of mapping the subjugated and subaltern. This book questions whether, as we map crises, it is the map itself that is in crisis
PROGRAM and PROCEEDINGS THE NEBRASKA ACADEMY OF SCIENCES: 139th Anniversary Year, One Hundred-Twenty-Ninth Annual Meeting, April 12, 2019, NEBRASKA WESLEYAN UNIVERSITY, LINCOLN, NEBRASKA
PROGRAM AT-A-GLANCE
FRIDAY, APRIL 12, 2019
7:30 a.m. REGISTRATION OPENS - Lobby of Lecture Wing, Olin Hall
8:00 Aeronautics and Space Science, Session A â Acklie 109
Aeronautics and Space Science, Session B â Acklie 111
Collegiate Academy; Biology, Session B - Olin B
Biological and Medical Sciences, Session A - Olin 112
Biological and Medical Sciences, Session B - Smith Callen Conference Center
Chemistry and Physics; Chemistry - Olin A
8:00 âTeaching and Learning the Dynamics of Cellular Respiration Using Interactive Computer Simulationsâ Workshop â Olin 110
9:30 âLife After College: Building Your Resume for the Futureâ Workshop â Acklie 218
8:25 Collegiate Academy; Chemistry and Physics, Session A â Acklie 007
8:36 Collegiate Academy; Biology, Session A - Olin 111
9:00 Chemistry and Physics; Physics â Acklie 320
9:10 Aeronautics and Space Science, Poster Session â Acklie 109 & 111
10:30 Aeronautics and Space Science, Poster Session â Acklie 109 & 111
11:00 MAIBEN MEMORIAL LECTURE: Dr David Swanson - OLIN B
Scholarship and Friend of Science Award announcements
12:00 p.m. LUNCH â WESLEYAN CAFETERIA
Round-Table Discussion â âAssessing the Academy: Current Issues and Avenues for Growthâ led by Todd Young â Sunflower Room
12:50 Anthropology â Acklie 109
1:00 Applied Science and Technology - Olin 111
Biological and Medical Sciences, Session C - Olin 112
Biological and Medical Sciences, Session D - Smith Callen Conference Center
Chemistry and Physics; Chemistry - Olin A
Collegiate Academy; Biology, Session B - Olin B
Earth Science â Acklie 007
Environmental Sciences â Acklie 111
Teaching of Science and Math â Acklie 218
1:20 Chemistry and Physics; Physics â Acklie 320
4:30 BUSINESS MEETING - OLIN B
NEBRASKA ASSOCIATION OF TEACHERS OF SCIENCE (NATS)
The 2019 Fall Conference of the Nebraska Association of Teachers of Science (NATS) will be held at the Younes Conference Center, Kearney, NE, September 19-21, 2019.
President: Betsy Barent, Norris Public Schools, Firth, NE
President-Elect: Anya Covarrubias, Grand Island Public Schools, Grand Island, NE
AFFILIATED SOCIETIES OF THE NEBRASKA ACADEMY OF SCIENCES, INC.
1. American Association of Physics Teachers, Nebraska Section Web site: http://www.aapt.org/sections/officers.cfm?section=Nebraska
2. Friends of Loren Eiseley Web site: http://www.eiseley.org/
3. Lincoln Gem & Mineral Club Web site: http://www.lincolngemmineralclub.org/
4. Nebraska Chapter, National Council for Geographic Education
5. Nebraska Geological Society Web site: http://www.nebraskageologicalsociety.org Sponsors of a $50 award to the outstanding student paper presented at the Nebraska Academy of Sciences Annual Meeting, Earth Science /Nebraska Chapter, Nat\u27l Council Sections
6. Nebraska Graduate Women in Science
7. Nebraska Junior Academy of Sciences Web site: http://www.nebraskajunioracademyofsciences.org/
8. Nebraska Ornithologistsâ Union Web site: http://www.noubirds.org/
9. Nebraska Psychological Association http://www.nebpsych.org/
10. Nebraska-Southeast South Dakota Section Mathematical Association of America Web site: http://sections.maa.org/nesesd/
11. Nebraska Space Grant Consortium Web site: http://www.ne.spacegrant.org
Mapping Crisis
The digital age has thrown questions of representation, participation and humanitarianism back to the fore, as machine learning, algorithms and big data centres take over the process of mapping the subjugated and subaltern. Since the rise of Google Earth in 2005, there has been an explosion in the use of mapping tools to quantify and assess the needs of those in crisis, including those affected by climate change and the wider neo-liberal agenda. Yet, while there has been a huge upsurge in the data produced around these issues, the representation of people remains questionable. Some have argued that representation has diminished in humanitarian crises as people are increasingly reduced to data points. In turn, this data has become ever more difficult to analyse without vast computing power, leading to a dependency on the old colonial powers to refine the data collected from people in crisis, before selling it back to them. This book brings together critical perspectives on the role that mapping people, knowledges and data now plays in humanitarian work, both in cartographic terms and through data visualisations, and questions whether, as we map crises, it is the map itself that is in crisis
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