Results 101 to 110 of about 257,298 (302)

Experimental evidence of shock mitigation in a Hertzian tapered chain

, 2006
We present an experimental study of the mechanical impulse propagation through a horizontal alignment of elastic spheres of progressively decreasing diameter $\phi_n$, namely a tapered chain.
Francisco Melo, Francisco Santibanez, Franco Tapia, L. D. Landau, M. Nakagawa, S. L. Gavrilyuk, S. Sen, Stéphane Job, V. F. Nesterenko, V. F. Nesterenko   +9 more
core   +1 more source

Ultrasound in Women's Health: Mechanisms, Applications, and Emerging Opportunities

Advanced Materials, EarlyView.
As healthcare moves toward decentralization, ultrasound technologies are evolving from strictly imaging tools in clinical settings into versatile diagnostic and therapeutic platforms, with growing roles addressing women's health needs. This review highlights how ultrasound's underlying physical mechanisms can be harnessed to reduce disparities in women'
Sarah B. Ornellas, Bilal Kizilaslan, Aastha Shah, Jason F. Hou, Yoonsoo Shin, Alejandra Hernandez Moyers, Claudia Lozano, Canan Dagdeviren   +7 more
wiley   +1 more source

Success rates of simulated multi-pulse defibrillation protocols are sensitive to application timing with individual, protocol-specific optimal timings

Frontiers in Network Physiology
Ventricular fibrillation is a lethal condition where the heartbeat becomes too disorganised to maintain proper circulation. It is treated with defibrillation, which applies an electric shock in an attempt to reset the heart rhythm.
Marcel Aron, Marcel Aron, Marcel Aron, Marcel Aron, Stefan Luther, Stefan Luther, Stefan Luther, Stefan Luther, Stefan Luther, Ulrich Parlitz, Ulrich Parlitz, Ulrich Parlitz   +11 more
doaj   +1 more source

The Q-switched Nd:YAG laser shock processing effects on mechanical properties of C86400 Cu-Zn alloy

Iraqi Journal of Physics, 2019
The aim of this paper is to investigate the effects of Nd:YAG laser shock processing (LSP) on micro-hardness and surface roughness of 86400Cu-Zn alloy. X-ray fluorescence technique was used to analyze the chemical composition of this alloy.
mays oday hashim, Dr. Razi Al-Azawi, Dr. Abdul Hadi Kadhim   +2 more
doaj   +1 more source

Water impact shock test system [PDF]

The basic objective was to design, manufacture, and install a shock test system which, in part, would have the ability to subject test articles weighing up to 1,000 pounds to both half sine and/or full sine pulses having peak levels of up to 50 G's with ...

core   +1 more source

ROSAT HRI Detection of the 16 ms Pulsar PSR J0537-6910 Inside SNR N157B

, 1998
Based on a deep ROSAT HRI observation, we have detected a pulsed signal in the 0.1-2 keV band from PSR J0537-6910 --- the recently discovered pulsar associated with the supernova remnant N157B in the Large Magellanic Cloud.
E. V. Gotthelf, Q. Daniel Wang, Seward F. D.   +2 more
core   +1 more source

Laser‐Based Solidification of Cermets/Cemented Carbides: Processing‐Microstructure‐Property Relationships

Advanced Materials Technologies, EarlyView.
Recent research on laser‐processed cermets and cemented carbides highlights significant advancements, yet a notable paucity of studies and persistent challenges remain. Efforts are increasingly focused on developing low‐cost, environmentally friendly cermets as alternatives to conventional materials.
Himanshu Singh Maurya, Farid Akhtar, Konda Gokuldoss Prashanth   +2 more
wiley   +1 more source

The rock breaking mechanism and application effect of pulse type controllable shock wave

Geomechanics and Geophysics for Geo-Energy and Geo-Resources
Fracturing is an effective means of improving oil recovery in reservoirs, and controllable shock wave is a new type of fracturing technology. In this paper, firstly, combining a large-scale true tri-axial fracturing simulation experimental device with a ...
Zengjun Han, Meijuan Liu, Jingchen Zhang
doaj   +1 more source

The Use of Spatially Multi-Component Plasma Structures and Combined Energy Deposition for High-Speed Flow Control: A Selective Review

Energies
This review examines studies aimed at the organization of energy (non-mechanical) control of high-speed flow/flight using spatially multi-component plasma structures and combined energy deposition.
Olga A. Azarova, Oleg V. Kravchenko
doaj   +1 more source

Observations of a pulse driven cool polar jet by SDO/AIA

, 2011
Context. We observe a solar jet at north polar coronal hole (NPCH) using SDO AIA 304 {\deg}A image data on 3 August 2010. The jet rises obliquely above the solar limb and then retraces its propagation path to fall back. Aims.
A. K. Srivastava, Alexander, Bohlin, Brooks, Cirtain, Culhane, De Pontieu, De Pontieu, De Pontieu, De Pontieu, Filippov, Georgakilas, Hansteen, He, Innes, K. Murawski, Kamio, Kamio, Katsukawa, Ko, Lee, Liu, Murawski, Nisticò, Pariat, Shibata, Shibata, Shimojo, Vernazza, Wang, Yokoyama, Yokoyama   +31 more
core   +1 more source