Results 71 to 80 of about 140,683 (272)

Parallax and Distance Estimates for Fourteen Cataclysmic Variable Stars

, 2003
I used the 2.4 m Hiltner telescope at MDM Observatory in an attempt to measure trigonometric parallaxes for 14 cataclysmic variable stars. Techniques are described in detail.
Bailey J., Berriman G., Berriman G., Beuermann K., Beuermann K., Bruch A., Friend M. T., Horne K., John R. Thorstensen, Kato T., Kato T., Kolb U., Smak J., Smith H., Smith H., Sproats L. N., van Paradijs J., Warner B.   +17 more
core   +1 more source

Atomically Resolved Acoustic Dynamics Coupled with Magnetic Order in a Van der Waals Antiferromagnet

Advanced Materials, EarlyView.
Magnetically coupled acoustic phonon modes (f1, f2, f3) are captured by ultrafast X‐ray diffraction in a prototypical van der Waals antiferromagnet FePS3, including their atomic displacement vectors (u) and the acoustic propagation wave vectors (k). Notably, the atomic displacement vector and amplitude of these modes, represented by the direction and ...
Faran Zhou, Kyle Hwangbo, Sung Soo Ha, Xiao‐Wei Zhang, Sae Hwan Chun, Jaeku Park, Intae Eom, Qianni Jiang, Zekai Yang, Marc Zajac, Sungwon Kim, Sungwook Choi, Zhaodong Chu, Kyoung Hun Oh, Yifan Su, Alfred Zong, Elton J. G. Santos, Ting Cao, Jiun‐Haw Chu, Stephan O. Hruszkewycz, Nuh Gedik, Di Xiao, Hyunjung Kim, Xiaodong Xu, Haidan Wen   +24 more
wiley   +1 more source

Designing Defect Structure and Interfacial Strain in an Epitaxial VN Bilayer Film by Tailoring N Concentration

Advanced Materials Interfaces, EarlyView.
The N concentration in an epitaxial VN bilayer is tailored from overstoichiometric V0.49N0.51 to understoichiometric V0.56N0.44. Based on ab initio, diffraction, and microscopy data, the overstoichiometric V0.49N0.51 layer contains V vacancies, N Frenkel pairs, and a high density of dislocations.
Marcus Hans, Damian M. Holzapfel, Zhuo Chen, Soheil Karimi Aghda, Michal Fečík, Daniel Primetzhofer, Zaoli Zhang, Jochen M. Schneider   +7 more
wiley   +1 more source

Photocatalytic Water Splitting on the Lunar Surface: Prospects for In Situ Resource Utilization

Advanced Materials Interfaces, EarlyView.
Water has been found in craters on the moon nearby locations which are illuminated >80% of the time. Photocatalysis uses energy from sunlight to drive chemical reactions such as water splitting to produce oxygen and hydrogen. It is a scalable technology that requires lighter equipment and utilizes resources available on the moon. ABSTRACT The discovery
Ranjani Kalyan, Thomas D. Small, Gregory F. Metha, Mahmoud Adel Hamza, Thomas J. O'Dea, Yideng Shen, Cameron J. Shearer   +6 more
wiley   +1 more source

Quantifying the Contamination from nearby Stellar Companions in Gaia DR3 Photometry

The Astronomical Journal
Identifying and removing binary stars from stellar samples is a crucial but complicated task. Regardless of how carefully a sample is selected, some binaries will remain and complicate interpretation of results, especially via flux contamination of ...
Kendall Sullivan, Adam L. Kraus, Travis A. Berger, Daniel Huber   +3 more
doaj   +1 more source

End‐to‐End Sensing Systems for Breast Cancer: From Wearables for Early Detection to Lab‐Based Diagnosis Chips

Advanced Materials Technologies, EarlyView.
This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane, Lyn I. Jones, Richard M. Martin, Helen Winter, Faezeh Arab Hassani   +4 more
wiley   +1 more source

Identifying seasonal stars in Kaurna astronomical traditions

, 2015
Early ethnographers and missionaries recorded Aboriginal languages and oral traditions across Australia. Their general lack of astronomical training resulted in misidentifications, transcription errors, and omissions in these records.
Hamacher, Duane W.
core  

Toward an internally consistent astronomical distance scale

, 2017
Accurate astronomical distance determination is crucial for all fields in astrophysics, from Galactic to cosmological scales. Despite, or perhaps because of, significant efforts to determine accurate distances, using a wide range of methods, tracers, and
A. Agnello, A. Agnello, A. Agnello, A. Eigenbrod, A. Eigenbrod, A. Eigenbrod, A. More, A. More, A. Pietrinferni, A. Saha, A. Saha, A. Sandage, A. Sarajedini, A. Sarajedini, A. Udalski, A.A. Cole, A.A. Cole, A.G. Riess, A.J. Ordoñez, A.J. Ordoñez, A.J. Ordoñez, A.K. Vivas, A.M.N. Ferguson, A.R. Conn, A.R. Walker, A.R. Walker, A.S. Tagore, A.S. Tagore, A.W. McConnachie, A.W. McConnachie, A.W. McConnachie, A.W. McConnachie, A.W. McConnachie, B. Chaboyer, B. Flaugher, B. Letarte, B.E. Schaefer, B.E. Schaefer, B.F. Madore, B.F. Schutz, B.J. Pritzl, B.J. Pritzl, B.J. Pritzl, B.J. Pritzl, B.J. Pritzl, B.P. Abbott, C. Alcock, C. Bot, C. Cacciari, C. Francis, C. Gallart, C. Gallart, C. McCully, C. McCully, C.D. Fassnacht, C.D. Laney, C.E. Martínez-Vázquez, C.E. Martínez-Vázquez, C.E. Rusu, C.E. Rusu, C.H.B. Koenig, C.J. Pritchet, C.S. Kochanek, C.S. Kochanek, C.S. Kochanek, C.T. Slater, C.Y. Kuo, D. Graczyk, D. Paraficz, D. Paraficz, D. Xu, D.E. Holz, D.J. Schlegel, D.L. Nidever, D.R. Weisz, E. Carretta, E. Carretta, E. D’Onghia, E. Jullo, E. Jullo, E. Kapakos, E.D. Reese, E.D. Skillman, E.E. Falco, E.F. Schlafly, E.J. Bernard, E.J. Bernard, E.J. Bernard, E.J. Bernard, E.J. Jeffery, E.L. Turner, F. Aharonian, F. Caputo, F. Courbin, F. Courbin, F. Courbin, F. Cusano, F. Cusano, F. Fraternali, F. Ostrovski, G. Bono, G. Bono, G. Bono, G. Clementini, G. Clementini, G. Clementini, G. Coppola, G. Fiorentino, G. Fiorentino, G. Fiorentino, G. Fiorentino, G. Fiorentino, G. Pietrzyński, G.A. Tammann, G.C.F. Chen, G.S. Costa Da, G.S. Costa Da, G.S. Costa Da, G.S. Costa Da, G.S. Costa Da, H. Kawahara, H.A. Smith, H.H. Crowl, I. Jee, I. Jee, I. Kayo, I. Nikiforov, I. Soszyński, I. Soszyński, J. Mould, J. Silk, J.A. Braatz, J.A. Rich, J.A.R. Caldwell, J.D. Ellithorpe, J.H.H. Chan, J.P. Kneib, J.R. Herrnstein, J.S. Bolton, J.S. Kalirai, J.S. Kalirai, J.W. Nightingale, K. Dobashi, K. Kinemuchi, K. Kuijken, K. Liao, K.B.W. McQuinn, K.C. Wong, L. Ferrarese, L. Inno, L. Inno, L. Rizzi, L.R. Bedin, L.V. Sales, L.V.E. Koopmans, M. Barnabè, M. Barnabè, M. Bellazzini, M. Bellazzini, M. Bellazzini, M. Bonamente, M. Catelan, M. Catelan, M. Cignoni, M. Marconi, M. Monelli, M. Monelli, M. Monelli, M. Monelli, M. Oguri, M. Oguri, M. Oguri, M. Oguri, M. Oguri, M. Rybak, M. Salaris, M. Sirianni, M. Tewes, M.-R.L. Cioni, M.A.T. Groenewegen, M.G. Lee, M.J. Reid, M.J. Reid, M.J. Reid, M.J. Reid, M.L. Mateo, M.L.M. Collins, M.L.M. Collins, M.V. Gorenstein, N. Dalal, N. Ho, N. Ho, N. Inada, N. Jackson, N.F. Martin, N.R. Napolitano, O. Wucknitz, P. Schneider, P. Schneider, P.B. Stetson, P.B. Stetson, P.F. Wu, P.J. Marshall, P.J. Marshall, R. Fadely, R. Gavazzi, R. Grijs de, R. Grijs de, R. Grijs de, R. Grijs de, R. Grijs de, R. Grijs de, R. Haschke, R. Ibata, R. Jimenez, R. Jimenez, R. Joseph, R.F. Mushotzky, R.G. Gratton, R.S. Bussmann, S. Bergh van den, S. Birrer, S. Birrer, S. Cassisi, S. Crandall, S. Dye, S. Hilbert, S. Hilbert, S. Miyazaki, S. Refsdal, S. Rubele, S. Rubele, S. Subramanian, S. Subramanian, S. Vegetti, S.C. Yang, S.C. Yang, S.H. Suyu, S.H. Suyu, S.H. Suyu, S.H. Suyu, S.H. Suyu, S.H. Suyu, S.J. Warren, S.L. Hidalgo, S.T. Myers, T. Abbott, T. Foster, T.E. Collett, T.E. Collett, T.J.L. Boer de, V. Bonvin, V. Ripepi, V. Scowcroft, V. Scowcroft, W.L. Freedman, W.L. Freedman, X.L. Meng, Y. Shu, Y.D. Hezaveh, Y.D. Hezaveh, Y.W. Lee, Z. Malkin, Z.M. Malkin, Z.S. Greene   +264 more
core   +1 more source

MXene‐Coated 3D Printed Horn Antennas for Ku Frequency Band

Advanced Materials Technologies, EarlyView.
An additive manufacturing approach to 3D printing horn antennas and coating them with Ti3C2Tx MXene is proposed. Rapid fabrication of lightweight, high‐performance antennas operating in the Ku‐band (12.4–18 GHz) has been demonstrated. The MXene‐coated antennas exhibit comparable electromagnetic performance to conventional, costly aluminum ones, with ...
Zahra Sarpanah Sourkouhi, Jamal Alhourani, Yury Gogotsi, Mohammad H. Zarifi   +3 more
wiley   +1 more source

Identifying Pulsar Candidates in Interferometric Radio Images Using Scintillation

The Astrophysical Journal
Pulsars have been primarily detected by their narrow pulses or periodicity in time domain data. Interferometric surveys for pulsars are challenging due to the trade-off between beam sensitivity and beam size and the corresponding tradeoff between survey ...
Jitendra Salal, Shriharsh P. Tendulkar, Visweshwar Ram Marthi   +2 more
doaj   +1 more source