Results 41 to 50 of about 5,423 (262)

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

Advanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt, Varma Kvvssn, Hossein Laieghi, Zia Uddin, Peyman Ansari, E. Kıvanç Sadak, Can Barış Toprak, Hüseyin Kızıl, Enrico Salvati   +8 more
wiley   +1 more source

The Hobby–Eberly Telescope VIRUS Parallel Survey (HETVIPS)

The Astrophysical Journal
The Hobby–Eberly Telescope (HET) VIRUS Parallel Survey (HETVIPS) is a blind spectroscopic program that sparsely covers approximately two-thirds of the celestial sphere and consists of roughly 252 million fiber spectra.
Gregory R. Zeimann, Maya H. Debski, Donald P. Schneider, William P. Bowman, Niv Drory, Gary J. Hill, Hanshin Lee, Phillip MacQueen, Matthew Shetrone   +8 more
doaj   +1 more source

Preatmospheric Detection of a Meter-sized Earth Impactor

The Planetary Science Journal, 2023
On 2020 September 18 U.S. Government (USG) sensors detected a bolide with peak bolometric magnitude of −19 over the Western Pacific. The impact was also detected by the Geostationary Lightning Mapper instrument on the GOES-17 satellite and infrasound ...
David L. Clark, Paul A. Wiegert, Peter G. Brown, Denis Vida, Aren Heinze, Larry Denneau   +5 more
doaj   +1 more source

Ferroelectricity in Antiferromagnetic Wurtzite Nitrides

Advanced Functional Materials, EarlyView.
We establish MnSiN2${\rm MnSiN}_2$ and MnGeN2${\rm MnGeN}_2$ as aristotypes of a new multiferroic wurtzite family that simultaneously exhibits ferroelectricity and antiferromagnetism with altermagnetic spin splitting. By strategically substituting alkaline‐earth metals, we predict new materials with coexisting switchable polarization, spin texture, and
Steven M. Baksa, Lin‐Ding Yuan, Stephen D. Wilson, James M. Rondinelli   +3 more
wiley   +1 more source

Discovery of an RRAT-like Pulsar via Its Single Pulses in a Murchison Widefield Array Imaging Survey

The Astrophysical Journal
We report the discovery of PSR J0031–5726 in the Galactic and Extragalactic All-sky Murchison Widefield Array Extended imaging survey at a Galactic latitude of b  ≈ −60 ^∘ .
Samuel J. Mcsweeney, Jared Moseley, Natasha Hurley-Walker, Garvit Grover, Csanád Horváth, Timothy J. Galvin, Bradley W. Meyers, Chia Min Tan   +7 more
doaj   +1 more source

ASTEROIDS SEARCH RESULTS IN LARGE PHOTOGRAPHIC SKY SURVEYS

Odessa Astronomical Publications, 2017
Photographic observations of XX century contained numerous and varied information about all objects  and  events  of  the  Universe  fixed  on  plates.  The original and interesting observations of small bodies of the Solar  system  in  previous  years ...
S. V. Shatokhina, L. V. Kazantseva, O. M. Yizhakevych, I. Eglitis, V. M. Andruk   +4 more
doaj   +1 more source

The Sydney University Molonglo Sky Survey (SUMSS) and Optical Redshift Surveys of the Southern Sky [PDF]

Symposium - International Astronomical Union, 2002
The Sydney University Molonglo Sky Survey (SUMSS) is a radio imaging survey at 843 MHz of the whole sky south of declination −30°. With a resolution of 43″ × 43″ cosec |δ| and an rms noise level of ∼ 1 mJy/beam, SUMSS has similar sensitivity and resolution to the northern NRAO VLA Sky Survey (NVSS).
Elaine M. Sadler, R.W. Hunstead
openaire   +1 more source

Oxygen‐Tunnel Indium Tin Oxide Vertical Channel Transistors with Enhanced Current Density and Reliability for Monolithic 3D Compute‐In‐Memory Systems

Advanced Functional Materials, EarlyView.
Oxygen‐tunnel (OT) indium tin oxide (ITO) vertical channel transistors (VCTs) enable reliable, high‐density gain‐cell memory for monolithic 3D integration. A sandwiched SiN/SiO2/SiN OT stack selectively regulates oxygen transport, suppressing parasitic electrode oxidation while stabilizing channel oxygen vacancies, thereby suppressing carrier injection
Hyeonho Gu, Haksoon Jung, Yongwoo Lee, Hoichang Jeong, Yanfeng Zhao, Heesoo Yang, Minho Park, Hyeonjin Lee, Seunghun Baek, Minju Song, Junghwan Kim, Youngmin Jo, Hyunjin Park, Munhyeon Kim, Jae‐Joon Kim, Kyuho Jason Lee, Byungjo Kim, Jimin Kwon   +17 more
wiley   +1 more source

An Extremely Deep Rubin Survey to Explore the Extended Kuiper Belt and Identify Objects Observable by New Horizons

The Astrophysical Journal Supplement Series
A proposed Vera C. Rubin Observatory deep-drilling microsurvey of the Kuiper Belt will investigate key properties of the distant solar system. Utilizing 30 hr of Rubin time across six 5 hr visits over 1 yr starting in summer 2026, the survey aims to ...
J. J. Kavelaars, Marc W. Buie, Wesley C. Fraser, Lowell Peltier, Susan D. Benecchi, Simon B. Porter, Anne J. Verbiscer, David W. Gerdes, Kevin J. Napier, Joseph Murtagh, Takashi Ito, Kelsi N. Singer, S. Alan Stern, Tsuyoshi Terai, Fumi Yoshida, Michele T. Bannister, Pedro H. Bernardinelli, Gary M. Bernstein, Colin Orion Chandler, Brett Gladman, Lynne Jones, Jean-Marc Petit, Megan E. Schwamb, Pontus C. Brandt, Joel W. Parker   +24 more
doaj   +1 more source

BELARUSIAN PROJECT “ASTROBLOKNOT” (ASTRONOMICAL NOTEBOOK) AND DATA MINING: RESULTS OBTAINED IN THE CONSTELLATION OF EQUULEUS

Odessa Astronomical Publications, 2013
Many photometric sky surveys are currently available on the  open-access web-sources. The Northern Sky Variability Survey (NSVS), the All Sky Automated Survey 3 (ASAS-3) and the Catalina Real-Time Transient Survey (CRTS) are the most popular among them ...
Ivan Sergey, Sergei Dubrouski, Igor Baluk, Alexander Pobiacha   +3 more
doaj   +1 more source