Results 41 to 50 of about 313,264 (302)

Modeling meso-scale energy localization in shocked HMX, Part II: training machine-learned surrogate models for void shape and void-void interaction effects [PDF]

, 2019
Surrogate models for hotspot ignition and growth rates were presented in Part I, where the hotspots were formed by the collapse of single cylindrical voids. Such isolated cylindrical voids are idealizations of the void morphology in real meso-structures.
arxiv   +1 more source

Voids in the Local Volume: a limit on appearance of a galaxy in a DM halo

, 2007
Current explanation of the overabundance of dark matter subhalos in the Local Group (LG) indicates that there maybe a limit on mass of a halo, which can host a galaxy.
Anatoly A. Klypin, Anton V. Tikhonov, Tully   +2 more
core   +1 more source

HST /COS Lyman-alpha Absorbers in Cosmic Voids [PDF]

arXiv, 2022
We investigate the spatial distribution of Lyman-$\alpha$ (Ly $\alpha$) absorbers within cosmic voids. We create a catalogue of cosmic voids in Sloan Digital Sky Survey Data Release 7 (SDSS DR7) with the VoidFinder algorithm of the Void Analysis Software Toolkit (VAST).
arxiv  

Rotation of Cosmic Voids and Void-Spin Statistics [PDF]

Astrophys.J.652:1-5,2006, 2006
We present a theoretical study of void spins and their correlation properties. The concept of the spin angular momentum for an unbound void is introduced to quantify the effect of the tidal field on the distribution of matter that make up the void. Both the analytical and numerical approaches are used for our study.
arxiv   +1 more source

Dynamical Evolution of Voids with Surrounding Gravitational Tidal Field [PDF]

, 2021
The void ellipticity distribution today can be well explained by the tidal field. Going a step further from the overall distribution, we investigate individuality on the tidal response of void shape in non-linear dynamical evolution. We perform an N-body simulation and trace individual voids using particle ID.
arxiv   +1 more source

The Hierarchical Structure and Dynamics of Voids

, 2012
Contrary to the common view voids have very complex internal structure and dynamics. Here we show how the hierarchy of structures in the density field inside voids is reflected by a similar hierarchy of structures in the velocity field.
A. S. Szalay, Aaronson, Aragon-Calvo, Aragon-Calvo, Aragón-Calvo, Bardeen, Beacom, Bernardeau, Bertschinger, Bertschinger, Biswas, Blumenthal, Bond, Bond, Ceccarelli, Chongchitnan, Colberg, Colberg, Colberg, Colless, Dekel, Doroshkevich, Dressler, Dubinski, Einasto, Einasto, Einasto, Einasto, Einasto, Fillmore, Florack, Furlanetto, Gauch, Geller, Gottlöber, Hausman, Hoffman, Icke, Joeveer, Karachentsev, Kereš, Kirshner, Klypin, Klypin, Klypin, Kofman, Kreckel, Kreckel, Kreckel, Lacey, Lavaux, Lee, Little, Lynden-Bell, M. A. Aragon-Calvo, Mathis, Melott, Melott, Melott, Moore, Nasonova, Neyrinck, Padilla, Paranjape, Park, Patiri, Peebles, Peimbert, Platen, Platen, Romano-Diaz, Romano-Díaz, Sahni, Sato, Schaap, Schaap, Shandarin, Shaya, Sheth, Sheth, Slezak, Sousbie, Springel, Springel, Stanonik, Suhhonenko, Suto, Szomoru, Szomoru, Szomoru, Tarenghi, Tifft, Tully, Tully, van de Weygaert, van de Weygaert, van de Weygaert, van de Weygaert, van de Weygaert, Weistrop, Weistrop, Wong, Zel'dovich, Zeldovich   +103 more
core   +1 more source

Social context prevents heat hormetic effects against mutagens during fish development

FEBS Letters, EarlyView.
This study shows that sublethal heat stress protects fish embryos against ultraviolet radiation, a concept known as ‘hormesis’. However, chemical stress transmission between fish embryos negates this protective effect. By providing evidence for the mechanistic molecular basis of heat stress hormesis and interindividual stress communication, this study ...
Lauric Feugere, Claudio Silva De Freitas, Adam Bates, Kenneth B. Storey, Pedro Beltran‐Alvarez, Katharina C. Wollenberg Valero   +5 more
wiley   +1 more source

Banana Fiber Extraction and Surface Characterization of Hybrid Banana Reinforced Composite

Journal of Natural Fibers, 2022
For many engineering applications, especially in case of automobiles, natural fibers are a better replacement for artificially made fibers when it is reinforced as polymer composite materials.
Nasr Bekraoui, Zakaria El Qoubaa, Hajar Chouiyakh, Mustapha Faqir, Elhachmi Essadiqi   +4 more
doaj   +1 more source

Towards cosmology with Void Lensing: how to find voids sensitive to weak-lensing and numerically interpret them [PDF]

arXiv, 2023
In this work, we present a study of the void lensing signal or the excess surface mass density (ESMD) around cosmic voids. First, we propose a new void-finder algorithm that is designed to capture the ESMD around voids. We compare our algorithm applied to projected slices with the ZOBOV void finder and find significantly deeper weak-lensing profiles ...
arxiv  

Unlocking the potential of tumor‐derived DNA in urine for cancer detection: methodological challenges and opportunities

Molecular Oncology, EarlyView.
Urine is a rich source of biomarkers for cancer detection. Tumor‐derived material is released into the bloodstream and transported to the urine. Urine can easily be collected from individuals, allowing non‐invasive cancer detection. This review discusses the rationale behind urine‐based cancer detection and its potential for cancer diagnostics ...
Birgit M. M. Wever, Renske D. M. Steenbergen   +1 more
wiley   +1 more source