Results 181 to 190 of about 207,815 (342)

Plasmakristall‐4 Experiment: 10 Years of Operation in Orbit

Contributions to Plasma Physics, EarlyView.
ABSTRACT Plasmakristall‐4 (PK‐4) is a microgravity complex plasma laboratory operated for 10 years on board the International Space Station. Its main purpose is the particle‐resolved investigation of generic condensed matter phenomena using strongly coupled suspensions of microparticles immersed in low‐pressure gas‐discharge plasmas.
M. Pustylnik, H. M. Thomas, M. Kretschmer, M. Thoma   +3 more
wiley   +1 more source

Freezing-in gravitational waves

Physical Review D
The thermal plasma in the early Universe produced a stochastic gravitational wave (GW) background, which peaks today in the microwave regime and was dubbed the cosmic gravitational microwave background (CGMB). In previous works, only single graviton production processes that contribute to the CGMB have been considered.
Jacopo Ghiglieri, Jan Schütte-Engel, Enrico Speranza   +2 more
openaire   +3 more sources

Instability mechanism and failure characteristics of underground cavern in block system under the action of seismic waves

Deep Underground Science and Engineering, EarlyView.
Seismic waves with tensile stress, high amplitude, and low frequency are most likely to trigger block instability and sliding. Blocks with a single sliding surface are more prone to movement than those with multiple constraints, and roof‐positioned blocks are especially vulnerable to slide.
Xiao Wang, Jinxiao Liu, Gaoshuo Zhang, Wenxin Li, Changdi He   +4 more
wiley   +1 more source

Tailoring Thermophysical Properties and Multiscale Machine Learning Modeling of 2D Nanomaterial‐Infused Beeswax as a Green NePCM for Sustainable Thermal Management Systems

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study develops eco‐friendly two‐dimensional nanoparticle‐enhanced phase change materials (2D NePCMs) using biodegradable beeswax infused with rGO, GO, and MXene nanoparticles. Experimental results demonstrated up to 21.9% enhancement in thermal conductivity with minimal latent heat loss, while machine learning models achieved >95% predictive ...
Abdullah Aziz, Shoaib Anwer, Eiyad Abu‐Nada, Anas Alazzam   +3 more
wiley   +1 more source

Synchronous and Asynchronous X-Ray Monitoring of FRB 20190520B with the Chandra X-Ray Observatory

The Astrophysical Journal
We report on X-ray limits on observations of FRB 20190520B during simultaneous observations with the Green Bank Telescope and the Chandra X-ray Observatory.
Jessica Sydnor, Sarah Burke-Spolaor, Kshitij Aggarwal, Reshma Anna-Thomas, Casey J. Law, Harsha Blumer, Liam Connor   +6 more
doaj   +1 more source

Measuring Bending Rigidity and Compression Resistance in Pickering Layers

European Journal of Lipid Science and Technology, EarlyView.
This graphical abstract presents the mechanical response of Pickering layers of polystyrene beads (PBs) and clay particles (CPs) under compression. PBs exhibit buckling at 40–70 mN/m, whereas CPs show no buckling. Experimental force–compression curves highlight distinct deformation behaviors, and deviations in bending rigidity emphasize interparticle ...
Negar Azizi, Sachin Rathod, Jaakko V. I. Timonen, Jon Otto Fossum, Paul Gunnar Dommersnes   +4 more
wiley   +1 more source

A New Classification Method of Surrounding Rock Quality for Phyllite Tunnels Under the Condition of Layer Orientation Parallel to the Orientation of Tunnel Axis

Energy Science &Engineering, EarlyView.
Modified Mass Classification of Layered Rock Masses Based on the HC Method. ABSTRACT The HC method for hydropower is a commonly used rock mass quality classification technique in China's hydropower industry. Due to the anisotropic nature of the layered schist in the study area, and the varying angles between different tunnel layers and the tunnel axis,
Jing Yang, Jingyong Wang, Hao Luo, Ping Wang, Chengfeng Wu, Rui Zeng, Yupeng Lu, Hao Man, Feng Ji   +8 more
wiley   +1 more source

Imprints of cosmic phase transition in inflationary gravitational waves [PDF]

, 2012
Ryusuke Jinno, Takeo Moroi, Kazunori Nakayama   +2 more
openalex   +1 more source

A Semi‐Implicit Numerical Method for Simultaneous Fluid‐Structure Interaction

International Journal for Numerical Methods in Fluids, EarlyView.
A one‐dimensional shallow water model is coupled with a floating boat, which is assumed to be in hydrostatic equilibrium with the underlying water. Numerically, a semi‐implicit discretization of the shallow water equations also includes the Archimedes' floating conditions in such a fashion that the boat's vertical position and pitch slope are ...
Vincenzo Casulli
wiley   +1 more source

Inclusive semileptonic b → c ℓ ν ¯ $$ b\to c\ell \overline{\nu} $$ decays to order 1 / m b 5 $$ 1/{m}_b^5 $$

Journal of High Energy Physics
Inclusive semileptonic B → X c ℓ ν ¯ $$ B\to {X}_c\ell \overline{\nu} $$ decays can be described in the Heavy Quark Expansion (HQE) and allow for a precision determination of the CKM element |V cb |.
Thomas Mannel, Ilija S. Milutin, K. Keri Vos   +2 more
doaj   +1 more source