Results 121 to 130 of about 150,874 (286)

Comparison of Surface Features of Ceramic and Ti‐Based Dental Implants

physica status solidi (a), EarlyView.
The roughness values of ceramic implants are slightly higher than of the titanium machined sample and significantly lower than of sandblasted implants. The observed structures, along with the roughness values, could enhance the osseointegration of the 3D printed ceramic implants.
Wiktor Luczak, Ciril Reiner‐Rozman, Werner Baumgartner, Christoph Kleber, Achim Walter Hassel   +4 more
wiley   +1 more source

Giant Outer Transiting Exoplanet Mass (GOT ‘EM) Survey. IV. Long-term Doppler Spectroscopy for 11 Stars Thought to Host Cool Giant Exoplanets

The Astrophysical Journal Supplement Series
Discovering and characterizing exoplanets at the outer edge of the transit method’s sensitivity has proven challenging owing to geometric biases and the practical difficulties associated with acquiring long observational baselines.
Paul A. Dalba, Stephen R. Kane, Howard Isaacson, Benjamin Fulton, Andrew W. Howard, Edward W. Schwieterman, Daniel P. Thorngren, Jonathan Fortney, Noah Vowell, Corey Beard, Sarah Blunt, Casey L. Brinkman, Ashley Chontos, Fei Dai, Steven Giacalone, Michelle L. Hill, Molly Kosiarek, Jack Lubin, Andrew W. Mayo, Teo Močnik, Joseph M. Akana Murphy, Erik A. Petigura, Malena Rice, Ryan A. Rubenzahl, Judah Van Zandt, Lauren M. Weiss, Diana Dragomir, David Kipping, Matthew J. Payne, Arpita Roy, Alex Teachey, Steven Villanueva Jr.   +31 more
doaj   +1 more source

Circumbinary Planet Formation in the Kepler-16 system. I. N-body Simulations

, 2012
The recently discovered circumbinary planets (Kepler-16 b, Kepler-34 b, Kepler-35 b) represent the first direct evidence of the viability of planet formation in circumbinary orbits.
Holman, Ida, Marzari, Marzari, Meschiari, Moriwaki, Slawson, Stefano Meschiari, Stewart, Weidenschilling, Winn, Xie, Xie   +12 more
core   +1 more source

Basic Properties of Tungsten Oxide Anodic Memristors

physica status solidi (a), EarlyView.
Anodically grown WO3 memristors are studied. Strong self‐rectification is detected during I–U sweeps. Poole–Frenkel and Schottky conduction mechanisms are responsible for the high‐ and low‐resistive states, respectively. This characterizes forming‐free anodic memristors, without conductive filament formation. Memristive endurance testing reveals stable
Elena Atanasova, Andreas Greul, Antonella Udovicic, Achim Walter Hassel, Andrei Ionut Mardare   +4 more
wiley   +1 more source

New Rotation Periods from the Kepler Bonus Background Light Curves

The Astrophysical Journal
The Kepler field hosts the best-studied sample of field star rotation periods. However, due to Kepler’s large 4″ pixels, many of its light curves are at high risk of contamination from background sources.
Zachary R. Claytor, Jamie Tayar
doaj   +1 more source

Introducing Critical Systems Heuristics 2.0: A Third Boundary Extending CSH From Reflections on Critical Realism in Information Systems Research

Systems Research and Behavioral Science, EarlyView.
ABSTRACT Poorly designed information systems compel employees to find workarounds for the system in order to do their work properly. However, such workarounds compromise the enforcement of organisational governance. In our sense‐making of this specific phenomenon, we considered critical realism as a framework for understanding based on its adoption in ...
Roelien Goede, Hendrik Goede
wiley   +1 more source

Upper Limits on Stellar Companions to the Kepler-34 and Kepler-35 Systems

The Astronomical Journal
We obtained new spectra of Kepler-34 and Kepler-35 with Keck-HIRES—nearly a decade after these systems were originally characterized with this spectrograph and other instruments—to search for radial velocity (RV) trends from a potential third stellar ...
Carlos Jurado, Lauren M. Weiss, Laura Daclison, Benjamin M. Tofflemire, Jerome A. Orosz, William F. Welsh   +5 more
doaj   +1 more source

Kepler-447b: a hot-Jupiter with an extremely grazing transit

, 2015
We present the radial velocity confirmation of the extrasolar planet Kepler-447b, initially detected as a candidate by the Kepler mission. In this work, we analyze its transit signal and the radial velocity data obtained with the Calar Alto Fiber-fed ...
Barrado, D., Ciceri, S., Figueira, P., Henning, Th., Lillo-Box, J., Mancini, L., Santos, N. C.   +6 more
core   +1 more source

Aligning Real‐Time Recurrence Computational Fluid Dynamics Simulations with Plant Data for the Ruhrstahl–Heraeus Degassing Process of Steel

steel research international, EarlyView.
Uncertainties exist in computational fluid dynamics (CFD) modeling of complex metallurgical processes, even when partly validated by laboratory experiments. rCFD enables computationally efficient prediction of long‐term RH degassing and can be adapted to vary flow conditions.
Xiaomeng Zhang, Maria Thumfart, Roman Rössler, Stefan Pirker   +3 more
wiley   +1 more source

Precise Radial Velocity Measurements for Kepler Giants Hosting Planetary Candidates: Kepler-91 and KOI-1894

, 2015
We present results of radial-velocity follow-up observations for the two Kepler evolved stars Kepler-91 (KOI-2133) and KOI-1894, which had been announced as candidates to host transiting giant planets, with the Subaru 8.2m telescope and the High ...
Harakawa, Hiroki, Hasegawa, Ryo, Hirano, Teruyuki, Kawauchi, Kiyoe, Kobayashi, Atsushi, Masuda, Kento, Omiya, Masashi, Sato, Bun'ei, Takarada, Takuya   +8 more
core   +1 more source