Results 1 to 10 of about 7,311 (258)

Physical modelling of propagation characteristics of blasting stress waves in rock masses with parallel and X-shaped intersecting joints [PDF]

Scientific Reports
During rock blasting in tunnel excavation and mining, the presence of jointed fractures significantly affects the construction safety and stability of surrounding rock masses.
Zuhua Deng, Shaodan Wang, Tianqi Wei, Yongfeng Deng, Junjun Ni, Daicheng Ye   +5 more
doaj   +2 more sources

Assessing the Validity of Computerized Algorithms for Determining Pulse Wave Velocity: A Clinical Study [PDF]

Pulse
Introduction: Aortic stiffness, assessed through carotid-femoral pulse wave velocity (PWV), has been associated with an increased risk of cardiovascular events and mortality.
Amira Tairi, Hasan Obeid, Saliha Addour, Mark Butlin, Alberto P. Avolio, Catherine Fortier, Mohsen Agharazii   +6 more
doaj   +2 more sources

Computational Fluid Dynamics Prediction of the Sea-Keeping Behavior of High-Speed Unmanned Surface Vehicles Under the Coastal Intersecting Waves

Journal of Marine Science and Engineering
To better study the sea-keeping response behavior of unmanned surface vehicles (USVs) in coastal intersecting waves, a prediction is conducted using the CFD method in this paper, in which a USV with the shape of a small-scale catamaran and designed ...
Xiaobin Hong, Guihong Zheng, Ruimou Cai, Yuanming Chen, Guoquan Xiao   +4 more
doaj   +3 more sources

Experimental methods for the study of spin waves [PDF]

Известия высших учебных заведений: Прикладная нелинейная динамика, 2022
Purpose of this paper is to give an overview of various experimental methods for investigation of spin waves characteristics. Methods. The paper presents a description of a number of experimental techniques, such as the probing method, the phase shift ...
Gerus, Sergei Валерианович, Lock, Edwin Harry   +1 more
doaj   +1 more source

Supersymmetric intersecting branes on the waves [PDF]

Journal of High Energy Physics, 2010
We construct a general family of supersymmetric solutions in time- and space-dependent wave backgrounds in general supergravity theories describing single and intersecting p-branes embedded into time-dependent dilaton-gravity plane waves of an arbitrary (isotropic) profile, with the brane world-volume aligned parallel to the propagation direction of ...
Maeda, Kei-Ichi, Ohta, Nobuyoshi, Tanabe, Makoto, Wakebe, Ryo   +3 more
openaire   +3 more sources

KONSTRUKSI GELOMBANG KEJUT DAN GELOMBANG MENJARANG PADA ARUS KENDARAAN DI LALU LINTAS

Jurnal Lebesgue, 2023
In nonlinear conservation laws, there is a possibility of intersecting characteristic lines or even regions that are not traversed by characteristic lines. In regions where there are two or more characteristic lines, a gradien catastrophic phenomenon can
Maya Sari Syahrul, Nurweni Putri
doaj   +1 more source

Classification of p-branes, NUTs, waves and intersections [PDF]

Nuclear Physics B, 1998
We give a full classification of the multi-charge supersymmetric $p$-brane solutions in the massless and massive maximal supergravities in dimensions $D\ge2$ obtained from the toroidal reduction of eleven-dimensional supergravity. We derive simple universal rules for determining the fractions of supersymmetry that they preserve.
Lü, H., Pope, C. N., Tran, T. A., Xu, K.-W.   +3 more
openaire   +3 more sources

Supersymmetric intersections of M-branes and pp-waves [PDF]

Journal of High Energy Physics, 2003
We study supersymmetric intersections of M2 and M5 branes with different pp-waves of M-theory. We consider first M-brane probes in the background of pp-waves and determine under which conditions the embedding is supersymmetric. We particularize our formalism to the case of pp-waves with 32, 24 and 20 supersymmetries.
Mas, Javier, Ramallo, Alfonso V.
openaire   +2 more sources

Dynamic analysis of steel chimney considering rotational components of earthquake [PDF]

Journal of Structural and Construction Engineering, 2021
The present study deals with dynamic analysis of steel chimney taking rotational components of earthquake into account. The translational components of the earthquake have been used in order to obtain the rotational components of the earthquake, based on
Amir Javad moradloo, Hoseyn Bayat, Ehsan Teymoori   +2 more
doaj   +1 more source

On the intersection of sets of incoming and outgoing waves [PDF]

Quarterly of Applied Mathematics, 2008
In the neighborhood of a boundary point, the solution of a first-order symmetric homogenous hyperbolic system is conveniently decomposed into fundamental waves solutions that are readily classified as outgoing, incoming, and stationary, or tangential.
Ditkowski, Adi, Sever, Michael
openaire   +2 more sources