Results 61 to 70 of about 1,215,607 (285)

Very large radio surveys of the sky [PDF]

Proceedings of the National Academy of Sciences, 1999
Recent advances in electronics and computing have made possible a new generation of large radio surveys of the sky that yield an order-of-magnitude higher sensitivity and positional accuracy. Combined with the unique properties of the radio universe, these quantitative improvements open up qualitatively different and exciting new scientific ...
openaire   +2 more sources

Design and Characterization of a Two‐Dimensional Soft Array Based on Cooperative Dielectric Elastomer Actuators

Advanced Functional Materials, EarlyView.
A fully polymeric two‐dimensional array of Dielectric Elastomers enables self‐sensing, cooperative actuation, and large‐stroke operation in a DE‐based autonomous conveyor. Based only on voltage and current measurements at actuator level, the system detects the presence of a ball and subsequently drives it toward a target position.
Saverio Addario, Alberto Priuli, Giovanni Soleti, Sebastian Gratz‐Kelly, Benjamin Zemlin, Stefan Seelecke, Gianluca Rizzello   +6 more
wiley   +1 more source

The MOST Hosts Survey: Spectroscopic Observation of the Host Galaxies of ∼40,000 Transients Using DESI

The Astrophysical Journal Supplement Series
We present the Multi-Object Spectroscopy of Transient (MOST) Hosts survey. The survey is planned to run throughout the 5 yr of operation of the Dark Energy Spectroscopic Instrument (DESI) and will generate a spectroscopic catalog of the hosts of most ...
Maayane T. Soumagnac, Peter Nugent, Robert A. Knop, Anna Y. Q. Ho, William Hohensee, Autumn Awbrey, Alexis Andersen, Greg Aldering, Matan Ventura, Jessica N. Aguilar, Steven Ahlen, Segev Y. Benzvi, David Brooks, Dillon Brout, Todd Claybaugh, Tamara M. Davis, Kyle Dawson, Axel de la Macorra, Arjun Dey, Biprateep Dey, Peter Doel, Kelly A. Douglass, Jaime E. Forero-Romero, Enrique Gaztañaga, Satya Gontcho A Gontcho, Or Graur, Julien Guy, ChangHoon Hahn, Klaus Honscheid, Cullan Howlett, Alex G. Kim, Theodore Kisner, Anthony Kremin, Andrew Lambert, Martin Landriau, Dustin Lang, Laurent Le Guillou, Marc Manera, Aaron Meisner, Ramon Miquel, John Moustakas, Adam D. Myers, Jundan Nie, Antonella Palmese, David Parkinson, Claire Poppett, Francisco Prada, Fei Qin, Mehdi Rezaie, Graziano Rossi, Eusebio Sanchez, David J. Schlegel, Michael Schubnell, Joseph H. Silber, Gregory Tarlé, Benjamin A. Weaver, Zhimin Zhou   +56 more
doaj   +1 more source

Constraints From Dwarf Galaxies on Black Hole Seeding and Growth Models With Current and Future Surveys

The Astrophysical Journal, 2023
Dwarf galaxies are promising test beds for constraining models of supermassive and intermediate-mass black holes (MBHs) via their BH occupation fraction (BHOF).
Urmila Chadayammuri, Ákos Bogdán, Angelo Ricarte, Priyamvada Natarajan   +3 more
doaj   +1 more source

The Southern Sky Redshift Survey [PDF]

The Astronomical Journal, 1998
We report redshifts, magnitudes and morphological classifications for 5369 galaxies with $m_B \leq 15.5$ and 57 galaxies fainter than this limit, in two regions covering a total of 1.70 steradians in the southern celestial hemisphere. The galaxy catalog is drawn primarily from the list of non-stellar objects identified in the Guide Star Catalog (Lasker
da Costa, L. Nicolaci, Willmer, C. N. A., Pellegrini, P. S., Chaves, O. L., Rite, C., Maia, M. A. G., Geller, M. J., Latham, D. W., Kurtz, M. J., Huchra, J. P., Ramella, M., Fairall, A. P., Smith, C., Lipari, S.   +13 more
openaire   +2 more sources

Boosting Conversion Efficiency in Zn3P2/InP Solar Cells Via Nanoscale Junction Engineering

Advanced Functional Materials, EarlyView.
This study demonstrates the efficacy of selective area epitaxy (SAE) in enhancing the conversion efficiency of a Zn3P2${\rm Zn}_3{\rm P}_2$/InP heterojunction solar cell. The impact of the SAE pattern dimensions on the performance parameters is investigated. Small size opening limits Jsc because of current crowding whereas large size opening limits Voc
Raphael Lemerle, Valerio Piazza, Andrea Filippo, Melanie Micali, Luna Warzawa, Thomas Hagger, Kamil Wodzislawski, Julien Hurni, Valentin Biselli, Ioannis Kalogerakis, Konstantinos Rogdakis, George Viskadouros, Emmanuel Kymakis, Esther Alarcon‐Llado, Anna Fontcuberta i Morral   +14 more
wiley   +1 more source

Chitin‐Derived Carbon‐Metal Functional Materials

Advanced Functional Materials, EarlyView.
Functional carbon materials are synthesized from combination of biopolymer (chitin) and iron precursors. The resultant material exhibits superior surface area and adsorptive properties compared to carbon materials synthesized directly from pure chitin.
Herry Fang, Chao Hsuan (Joseph) Sung, Haitao Yu, Ezra Sarmiento, Katarina Kotanchek, Ryan Christopher Lee, Michelle Chan, David Kisailus   +7 more
wiley   +1 more source

Tailoring Light Management in All‐Perovskite Tandem Solar Cells: The Impact of Nanotextures

Advanced Functional Materials, EarlyView.
To further improve the power conversion efficiency of all‐perovskite tandem solar cells, light management strategies need to be implemented. Front‐sided nanotextures reduce reflection losses, which boosts light absorption, thus increasing the tandem JSC, which is further supported by reducing parasitic absorption.
Sebastian Berwig, Yeonghun Yun, Doyun Im, Isabella Taupitz, Alexandros Cruz, Marlene Härtel, Bor Li, Kevin J. Prince, Hanifah Winarto, Thomas W. Gries, Klaus Jäger, Florian Riesebeck, Daniele Mantione, Sharon Monaci, Silvia Mariotti, Vishnu Vijayakumar, René A. J. Janssen, Sangwook Lee, Bernd Stannowski, Christiane Becker, Philipp Tockhorn, Steve Albrecht   +21 more
wiley   +1 more source

The Near-Earth Object Surveyor Mission

The Planetary Science Journal, 2023
The Near-Earth Object (NEO) Surveyor mission is a NASA Observatory designed to discover and characterize asteroids and comets. The mission’s primary objective is to find the majority of objects large enough to cause severe regional impact damage (>140 m ...
A. K. Mainzer, J. R. Masiero, Paul A. Abell, J. M. Bauer, William Bottke, Bonnie J. Buratti, Sean J. Carey, D. Cotto-Figueroa, R. M. Cutri, D. Dahlen, Peter R. M. Eisenhardt, Y. R. Fernandez, Roberto Furfaro, Tommy Grav, T. L. Hoffman, Michael S. Kelley, Yoonyoung Kim, J. Davy Kirkpatrick, Christopher R. Lawler, Eva Lilly, X. Liu, Federico Marocco, K. A. Marsh, Frank J. Masci, Craig W. McMurtry, Milad Pourrahmani, Lennon Reinhart, Michael E. Ressler, Akash Satpathy, C. A. Schambeau, S. Sonnett, Timothy B. Spahr, Jason A. Surace, Mar Vaquero, E. L. Wright, Gregory R. Zengilowski, NEO Surveyor Mission Team   +36 more
doaj   +1 more source

Sky‐Directional Radiative Cooling Meta‐Films for Daylighting Windows

Advanced Functional Materials, EarlyView.
A geometry‐mediated microprism meta‐film enables transparent, sky‐directional radiative cooling for daylighting windows. By decoupling control of visible transmittance from mid‐infrared emissivity, ground‐emitted heat absorption is suppressed while skyward heat dissipation is enhanced.
Seung‐Ah Yu, Jae‐Hyun Kim, Jinming He, Gumin Kang, Hyungduk Ko, Do‐hyun Koo, Run Hu, Sun‐Kyung Kim   +7 more
wiley   +1 more source