Results 71 to 80 of about 927 (171)

Characterization of Shallow Sedimentary Layers in the Oran Region Using Ambient Vibration Data

Applied Sciences
This study investigates the structure of shear-wave velocities (Vs) in the shallow layers of the Oran region, north-west of Algeria, using non-invasive techniques based on ambient vibration arrays. The region has experienced several moderate earthquakes,
Ahmed Saadi, Juan José Galiana-Merino, Fethi Semmane, Abdelkrim Yelles-Chaouche, Abdelouahab Issaadi   +4 more
doaj   +1 more source

Author Correction: In situ recording of Mars soundscape. [PDF]

Nature, 2022
Maurice S, Chide B, Murdoch N, Lorenz RD, Mimoun D, Wiens RC, Stott A, Jacob X, Bertrand T, Montmessin F, Lanza NL, Alvarez-Llamas C, Angel SM, Aung M, Balaram J, Beyssac O, Cousin A, Delory G, Forni O, Fouchet T, Gasnault O, Grip H, Hecht M, Hoffman J, Laserna J, Lasue J, Maki J, McClean J, Meslin PY, Le Mouélic S, Munguira A, Newman CE, Rodríguez Manfredi JA, Moros J, Ollila A, Pilleri P, Schröder S, de la Torre Juárez M, Tzanetos T, Stack KM, Farley K, Williford K, SuperCam team.   +42 more
europepmc   +1 more source

Multiplatform Computing of Transition Probabilities in Os V

Atoms
Osmium is an element of the Periodic Table with an atomic number Z equal to 76. In Tokamaks with divertors made of tungsten (Z=74), it is produced in the neutron-induced transmutation of the latter.
Patrick Palmeri, Saturnin Enzonga Yoca, Exaucé Bokamba Motoumba, Alix Niels, Maxime Brasseur, Pascal Quinet   +5 more
doaj   +1 more source

Study of the Hyperfine Structure of Sr II, Ba I and Ba II: An MCDHF Approach for Modeling the Low-Lying Levels

Atoms
Using the Multiconfiguration Dirac–Hartree–Fock method as implemented in the General Relativistic Atomic Structure Package, the magnetic dipole and electric quadrupole hyperfine structure constants were determined for the ground and first excited levels ...
Lorenzo Nezosi, Lucas Maison, Patrick Palmeri, Per Jönsson, Michel Godefroid   +4 more
doaj   +1 more source

An Operational Geomagnetic Baseline Derivation Method for Magnetic Observatories Located in Mid‐Latitudes

Space Weather
Ground magnetic field measurements are an important tool to determine the strength of space weather events in the terrestrial environment on local and global scales. For that purpose, geomagnetic baselines play a vital role as they describe typical quiet
Veronika Haberle, Aurélie Marchaudon, Aude Chambodut, Pierre‐Louis Blelly   +3 more
doaj   +1 more source

Far-infrared to centimeter emission of very nearby galaxies with archival data

Astronomy & Astrophysics
Compared to the well-studied infrared and radio domains, galaxy emission in the range from a few millimeters (mm) to centimeters (cm) (300−30 GHz) has been observed less frequently.
Correia L., Bot C., Chastenet J., Rymar A., Paladini R., Bethermin M., Ismail D., Lutz K. A., Bernard J.-P., Hughes A., Paradis D., Ysard N.   +11 more
doaj   +1 more source

The new gravimetric network of the north-eastern part of Algeria. [PDF]

Heliyon, 2022
Bayou Y, Bouyahiaoui B, Berguig MC, Abtout A.   +3 more
europepmc   +1 more source

Color dichotomy and gradients in the bulges and disks of EFIGI galaxies along the Hubble sequence

Astronomy & Astrophysics
Context. One of the most outstanding questions in contemporary astrophysics is: What is the significance of galaxy morphology? What physical processes underlie the morphologies we observe and is a galaxy’s internal structure shaping its evolution (nature)
Quilley L., Lehnert M. D., de Lapparent V.   +2 more
doaj   +1 more source

Les réactions nucléaires importantes en astrophysique

Journal de Physique et le Radium, 1960
On examine les réactions nucléaires importantes pour la compréhension de la production d'énergie et de la composition chimique des étoiles. Nous donnons les énergies dans le système du centre de gravité. (a) Les réactions des étoiles de la séquence principale ont lieu vers quelques keV ; (b) les réactions avec les particules α dans les géantes ont lieu
openaire   +2 more sources

On Restrictions of Current Warp Drive Spacetimes and Immediate Possibilities of Improvement

Universe
Looking at current proposals of so-called ‘warp drive spacetimes’, they appear to employ General Relativity only at an elementary level. A number of strong restrictions are imposed such as flow-orthogonality of the spacetime foliation, vanishing spatial ...
Hamed Barzegar, Thomas Buchert
doaj   +1 more source