Results 121 to 130 of about 65,000 (285)

Research on Optimal Width of Coal Pillars in Both Sides of Abandoned Mining Areas and Tunnel Control Technology

Energy Science &Engineering, EarlyView.
This study primarily investigates the optimal width for coal pillar retention in both sides of the worked‐out face section. Taking the 42201 haulage roadway of the 42201 working face at Shengxin Coal Mine as the primary research target, it analyses the optimum width for coal pillar retention through theoretical calculations, numerical simulations, and ...
Shuaifeng Yin, Kanglei Han, En Wang, Yitao Yan, Xubo Zhao   +4 more
wiley   +1 more source

On the capillary stress tensor in wet granular materials

, 2011
This paper presents a micromechanical study of unsaturated granular media in the pendular regime, based upon numerical experiments using the discrete element method, compared to a microstructural elastoplastic model.
Alonso, Biarez, Bishop, Bishop, Cambou, Chang, Chang, Christofferson, Cundall, De Buhan, Fisher, Fleureau, Fredlund, Haines, Hicher, Hicher, Hicher, Hotta, Jiang, Kozicki, Li, Lian, Liao, Love, Lu, Mahboubi, Nemat-Nasser, Nicot, Nuth, Rothenburg, Soulié, Terzaghi, Wheeler, Willet   +33 more
core   +1 more source

Stability Evaluation and Parametric Optimization of Coal‐Concrete Composite Bearing Systems Under Mine‐Water‐Induced Deterioration: Experiments and FEINN Analysis

Energy Science &Engineering, EarlyView.
Mine‐water immersion tests reveal pronounced coal weakening (vs. minor concrete degradation), identifying coal pillars as the stability‐limiting component in composite dams. A coupled FEINN framework quantifies extreme‐pressure stability and ranks multi‐parameter designs via a normalized multi‐indicator scheme, enabling optimized dam configuration for ...
He Wen, Hongchuan Dai, Guixin Zhang, Pengzhe Li, Tong Yang, Cang Gong, Renbo Gao   +6 more
wiley   +1 more source

A Large‐Area, Stretchable Accelerometer Array for Spatial Assessment of Chest Compressions in Cardiopulmonary Resuscitation

FlexTech, EarlyView.
A large‐area stretchable accelerometer array enables multi‐point monitoring of chest compression depth and thoracic contour reconstruction during CPR, offering high spatiotemporal resolution for dynamic deformation tracking and providing a new pathway toward intelligent, feedback‐based resuscitation systems. ABSTRACT High‐quality chest compressions are
Tianrun Xu, Jin Ji, Chongyuan Huang, Yiming Chen, Peng Zhao, Jizhou Song   +5 more
wiley   +1 more source

Discrete Element Modelling of the Mechanical Behavior of Sand-Rubber Mixtures under True Triaxial Tests. [PDF]

Materials (Basel), 2020
Liu Y, Liao X, Li L, Mao H.
europepmc   +1 more source

Galaxy density profiles and shapes -- I. simulation pipeline for lensing by realistic galaxy models

, 2009
Studies of strong gravitational lensing in current and upcoming wide and deep photometric surveys, and of stellar kinematics from (integral-field) spectroscopy at increasing redshifts, promise to provide valuable constraints on galaxy density profiles ...
Allen, Allen, Allgood, Baltz, Bartelmann, Bernardi, Blandford, Blanton, Blumenthal, Bolton, Bolton, Bolton, Bolton, Bosma, Bouché, Bullock, Burke, Cappellari, Cappellari, Cardone, Charles R. Keeton, Ciotti, Cohn, Croom, Côté, de Zeeuw, di Serego Alighieri, Dobler, Douglas, Einasto, Emsellem, Emsellem, Emsellem, Faber, Fassnacht, Ferrarese, Ferreras, Finch, Franx, Franx, Fukugita, Fukugita, Gao, Gavazzi, Glenn van de Ven, Gnedin, Hernquist, Huterer, Inada, Jaffe, Jiang, Jiang, Jing, Kaiser, Kauffmann, Kazantzidis, Keeton, Keeton, Kneib, Kochanek, Kochanek, Kochanek, Koopmans, Koopmans, Kormendy, Kuhlen, La Barbera, Lambas, Limousin, Mandelbaum, Mandelbaum, Mandelbaum, Marshall, McDermid, Merritt, Merritt, Mitchell, Momcheva, Morganti, Morganti, Naab, Navarro, Navarro, Noordermeer, Oguri, Oguri, Persic, Prugniel, Rachel Mandelbaum, Read, Richards, Rudd, Rusin, Rusin, Rusin, Rybicki, Salvador-Solé, Schneider, Schramm, Sellwood, Shen, Sérsic, Treu, Turner, Tyson, van Albada, van de Ven, van de Ven, van den Bosch, van der Marel, Vikhlinin, Vikhlinin, Wechsler, Weijmans, Williams, Winn, Young   +116 more
core   +1 more source

Toward an idiographic understanding of the role of sleep‐mood dynamics in adolescents' internalizing symptoms

JCPP Advances, EarlyView.
Abstract Background Adolescence is marked by increased vulnerability to sleep disturbances and mood disorders. Understanding how day‐to‐day changes in sleep and mood are linked within the same individual is crucial for clarifying sleep's role in emerging internalizing disorders. However, the extent to which an adolescent's fluctuations in sleep predict
Konstantin Drexl, Setareh Ranjbar, Sébastien Urben, Kerstin Jessica Plessen, Jennifer Glaus   +4 more
wiley   +1 more source

On the kinematic signature of a central Galactic bar in observed star samples

, 1998
A quasi self-consistent model for a barred structure in the central regions of our Galaxy is used to calculate the signature of such a triaxial structure on the kinematical properties of star samples.
Binney J. J., H. Dejonghe, P. Vauterin, Vauterin P., Vauterin P., Zhao H.   +5 more
core   +1 more source

Additional lateral meniscus centralization reduces residual anterolateral rotatory instability after anterior cruciate ligament reconstruction and lateral meniscus repair

Knee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose This study aimed to examine the effects of lateral meniscus (LM) centralization on anterolateral rotational stability in patients with anterior cruciate ligament (ACL) and LM injuries. The hypothesis was that performing LM repair and centralization on knees with LM lesions would control anterolateral rotatory instability (ALRI ...
Ryota Seki, Tomomasa Nakamura, Nobutake Ozeki, Yusuke Nakagawa, Mai Katakura, Takashi Hoshino, Masaki Amemiya, Aritoshi Yoshihara, Hideyuki Koga   +8 more
wiley   +1 more source

Fission barriers in actinides in covariant density functional theory: the role of triaxiality

, 2010
Relativistic mean field theory allowing for triaxial deformations is applied for a systematic study of fission barriers in the actinide region. Different pairing schemes are studied in details and it is shown that covariant density functional theory is ...
A. Dobrowolski, A. Staszczak, A. V. Afanasjev, B. D. Serot, H. Abusara, P. Ring, P. Ring, S. T. Belyaev   +7 more
core   +1 more source