Results 91 to 100 of about 31,992 (227)

Cosmology in 2D: the concentration-mass relation for galaxy clusters [PDF]

, 2012
The aim of this work is to perform a systematic study of the measures of the mass and concentration estimated by fitting the convergence profile of a large sample of mock galaxy cluster size lenses, created with the publicly available code MOKA. We found
Andreon, Bahé, Bartelmann, Becker, Becker, Blumenthal, Boylan-Kolchin, Carlo Giocoli, Clowe, Coe, Conroy, Corless, Corless, De Lucia, Dolag, Eke, Ettori, Ettori, Fedeli, Gao, Gao, Gavazzi, Giocoli, Giocoli, Giocoli, Giocoli, Giocoli, Gnedin, Hernquist, Hoekstra, Hoekstra, Jaffe, Jing, Jing, Kazantzidis, Keeton, Komatsu, Kuijken, Lacey, Lauro Moscardini, Macciò, Macciò, Massimo Meneghetti, Meneghetti, Meneghetti, Meneghetti, Meneghetti, Metcalf, Morandi, Navarro, Neto, Oguri, Oguri, Okabe, Okabe, Perlmutter, Perlmutter, Postman, Rasia, Rix, Sereno, Shaw, Sheth, Sheth, Sheth, Springel, Springel, Stefano Ettori, Tormen, Umetsu, van den Bosch, Wang, Wechsler, White, Zhao, Zitrin   +75 more
core   +2 more sources

Fracture evolution of a thick soft protection layer and the water inrush mechanism in overburden under longwall mining

Deep Underground Science and Engineering, EarlyView.
Through shear–tensile creep tests and viscoelastic modeling, the fracture evolution of thick soft protective layers is clarified. Results show thickness‐dependent rheological failure modes that govern four types of roof water inrush, providing a mechanism‐based framework for hazard prediction and control. Abstract In the Jurassic coal‐bearing strata of
Mengnan Liu, Wei Qiao, Xianggang Cheng, Xiangsheng Meng, Peichao Feng   +4 more
wiley   +1 more source

Effect of Intermediate Principal Stress on the Strength, Deformation, and Permeability of Sandstone

Energies, 2018
Although the mechanical behaviors and flow aspects of sandstone have been previously investigated, studies of the effect of the intermediate principal stress (σ2) on the strength, deformation, and permeability of sandstone are lacking. In this work,
Zhenlong Song, Minghui Li, Guangzhi Yin, Pathegama Gamage Ranjith, Dongming Zhang, Chao Liu   +5 more
doaj   +1 more source

Behavior of Long‐Slotted Perforated Steel Plate Fuses in Timber Brace End Connections

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Steel perforated plate fuses have emerged as a promising solution for mass timber seismic force‐resisting systems, offering tunable energy dissipation mechanisms, such as flexural and shear yielding, through geometric adjustments. This study examines the cyclic performance of perforated steel plate fuses employed in timber braced frames, with ...
Yahia Ahmed, Hossein Daneshvar, Ying Hei Chui   +2 more
wiley   +1 more source

The influence of Massive Black Hole Binaries on the Morphology of Merger Remnants [PDF]

, 2018
Massive black hole (MBH) binaries, formed as a result of galaxy mergers, are expected to harden by dynamical friction and three-body stellar scatterings, until emission of gravitational waves (GWs) leads to their final coalescence.
Bortolas, Elisa, Dotti, Massimo, Gualandris, Alessia, Read, Justin I.   +3 more
core   +3 more sources

Study on the Law of Multi‐Fracture Propagation in Different Fracturing Fluid Viscosity

Energy Science &Engineering, EarlyView.
Samples and equipment Sample preparation Test equipment Analysis of test results Fracture propagation morphology Influence of fracturing fluid viscosity on crack initiation time/(fracture initiation pressure) Evolution law of injection pressure Cumulative relation curve of pressure–time–acoustic ABSTRACT Using the TCHFSM‐I large‐scale accurate triaxial
Zhixing Zhang, Xiang Fu, Yuedong Liu, Xiaoqiang Zhang, Yulong Jiang   +4 more
wiley   +1 more source

FE2 evaluation of stress triaxiality / lode angle dependencies of void growing processes [PDF]

, 2019
This document provides information and instructions for preparing a Full Paper to be included in the Proceedings of COMPLAS 2019 ...
Matsui, Kazumi, Nakamura, Shintaro, Suzuki, Sho, Yamada, Takahiro   +3 more
core  

Minor-axis velocity gradients in spirals and the case of inner polar disks

, 2003
We measured the ionized-gas and stellar kinematics along the major and minor axis of a sample of 10 early-type spirals. Much to our surprise we found a remarkable gas velocity gradient along the minor axis of 8 of them.
A. Pizzella, Afanasiev, Anantharamaiah, Athanassoula, Athanassoula, Bender, Bender, Berman, Bertola, Bertola, Bertola, Bertola, Bettoni, Bettoni, Binney, Bournaud, Briggs, Bureau, Buta, Cappellari, Cinzano, Corsini, Corsini, de Zeeuw, de Zeeuw, Dehnen, E. M. Corsini, Eckart, Emsellem, Erwin, F. Bertola, Fillmore, Freedman, Friedli, Gerhard, Gerhard, Gerhard, Guthrie, Hagen-Thorn, Hameed, Hameed, Higdon, Jungwiert, Karataeva, Kent, Kormendy, Kuijken, L. Coccato, Merrifield, Mulchaey, Möllenhoff, Peletier, Pignatelli, Pizzella, Pizzella, Reshetnikov, Rubin, Sarzi, Schneider, Shalyapina, Sofue, van Albada, Veron-Cetty, Vlasyuk, Whitmore, Wozniak   +65 more
core   +1 more source

Research on Precise Identification of Rock Strength Based on Bolt Drilling Parameters

Energy Science &Engineering, EarlyView.
Drilling detection test platform. ABSTRACT During roadway excavation, the presence of weak interlayers and fractured rock masses significantly affects roof stability. To achieve timely and effective roadway support, it is crucial to identify and predict different rock types based on drilling signals from roof bolters.
Qiang Zhu, Sheng Biao Wang, Da Jiang Wen, Chong‐Yu Song, Kang Zhou   +4 more
wiley   +1 more source

The Next Generation Virgo Cluster Survey. VII. The intrinsic shapes of low-luminosity galaxies in the core of the Virgo cluster, and a comparison with the Local Group

, 2016
(Abridged) We investigate the intrinsic shapes of low-luminosity galaxies in the central 300 kpc of the Virgo cluster using deep imaging obtained as part of the NGVS. We build a sample of nearly 300 red-sequence cluster members in the yet unexplored $-14
Blakeslee, J. P., Boselli, A., Boyer, F., Cote, P., Courteau, S., Cuillandre, J. -C., Duc, P. -A., Durrell, P., Emsellem, E., Ferrarese, L., Gwyn, S., MacArthur, L. A., McConnachie, A. W., Mei, S., Peng, E., Puzia, T. H., Roediger, J., Sanchez-Janssen, R., Santos, M., Simard, L.   +19 more
core   +3 more sources