Results 31 to 40 of about 3,591,671 (339)

In situ measurement of the particle size distribution of the fragmentation product of laser-shock-melted aluminum using in-line picosecond holography

AIP Advances, 2016
The dynamic fragmentation of shock-melted metal is a topic of increasing interest in shock physics. However, high-quality experimental studies of the phenomenon are limited, and data that are essential for developing predictive models of the phenomenon ...
Ying-Hua Li, Yu Zhao, Xue-Mei Li, Zu-Gen Zhang, Xiang-Ping Ye, Jie Zhong, Ling-Cang Cai, Lin Zhang   +7 more
doaj   +1 more source

Upconversion Photonic Doppler Velocimetry Based on Stimulated Brillouin Scattering

Photonics
Optical up-conversion photonic Doppler velocimetry (PDV) based on stimulated Brillouin Scattering (SBS) with an all-fiber link structure is proposed in this article. Because SBS limits the laser power transmitted by a fiber over long distances, the probe
Long Chen, Cangli Liu, Heli Ma, Longhuang Tang, Xing Jia, Tianjiong Tao, Shenggang Liu, Yongchao Chen, Xiang Wang, Jian Wu, Chengjun Li, Jidong Weng   +11 more
doaj   +1 more source

Density Waves Excited by Low-Mass Planets in Protoplanetary Disks II: High-Resolution Simulations of the Nonlinear Regime

, 2011
We investigate numerically the propagation of density waves excited by a low-mass planet in a protoplanetary disk in the nonlinear regime, using 2D local shearing box simulations with the grid-based code Athena at high spatial resolution (256 grid points
Dong, Ruobing, Rafikov, Roman R., Stone, James M.   +2 more
core   +1 more source

Wave Profile for Anti-force Waves with Maximum Possible Currents [PDF]

, 2015
In the theoretical investigation of the electrical breakdown of a gas, we apply a one-dimensional, steady state, constant velocity, three component fluid model and consider the electrons to be the main element in propagation of the wave. The electron gas
Childs, W. P., Hemmati, M., Horn, R., Meredith, A. K.   +3 more
core   +3 more sources

Ferrocene Derivatives Enable Ultrasensitive Perovskite Photodetectors with Enhanced Reverse Bias Stability

Advanced Functional Materials, EarlyView.
Novel ferrocene derivatives (e.g., FcPhc2) are used as an ultrathin layer hole‐blocking layer, reducing hole injection from the Ag contact. This results in an ultralow noise spectral density of 1.2 × 10−14 A Hz−1/2, and a high specific detectivity of 8.1 × 1012 Jones at −0.5 V.
Eunyoung Hong, William D. J. Tremlett, Lucy Hart, Beier Hu, Zhuoran Qiao, Patipan Sukpoonprom, Sarah Fearn, Edoardo Angela, Matilde Brunetta, Demosthenes C. Koutsogeorgis, Nikolaos Kalfagiannis, Davide Nodari, Martyn A. McLachlan, Piers R. F. Barnes, Artem A. Bakulin, Nicholas J. Long, Nicola Gasparini   +16 more
wiley   +1 more source

Generation of spherically converging shock wave based on shock wave lens [PDF]

Matter and Radiation at Extremes
The manipulation of intense shock waves to either attenuate or enhance damage has long been a key goal in the domain of impact dynamics. Effective methods for such manipulation, however, remain elusive owing to the wide spectrum and irreversible ...
Qi-Guang He, Dun Wu, Yuying Yu, Hang Zhang, Qiang Wu, Jianbo Hu   +5 more
doaj   +1 more source

Triggering Collapse of the Presolar Dense Cloud Core and Injecting Short-Lived Radioisotopes with a Shock Wave. I. Varied Shock Speeds

, 2009
The discovery of decay products of a short-lived radioisotope (SLRI) in the Allende meteorite led to the hypothesis that a supernova shock wave transported freshly synthesized SLRI to the presolar dense cloud core, triggered its self-gravitational ...
Alan P. Boss, Barsony, Bonnor, Boss, Boss, Cameron, Cameron, Cameron, Chevalier, Connelly, Crutcher, Dauphas, Desch, Elizabeth A. Myhill, Ellinger, Foster, Frank, Gaidos, Goswami, Gounelle, Gounelle, Gounelle, Harri A. T. Vanhala, Healey, Hester, Krot, Kudoh, Kunz, Lee, Lee, Leppanen, Looney, MacPherson, Marchenko, McKeegan, McKeegan, Morris, Mouschovias, Nakamura, Nittler, Oey, Ouellette, Patnaude, Poludnenko, Preibisch, Preibisch, Rauscher, Regelous, Sahijpal, Sahijpal, Sandell, Sandra A. Keiser, Sergei I. Ipatov, Shirley, Snider, Stone, Tachibana, Takigawa, Thrane, Trigo-Rodríguez, Truelove, Vanhala, Vanhala, Vanhala, Wadhwa, Wasserburg, Whalen, Williams, Williams, Yokogawa   +69 more
core   +1 more source

Shock Wave Treatment Enhances Cell Proliferation and Improves Wound Healing by ATP Release-coupled Extracellular Signal-regulated Kinase (ERK) Activation*

Journal of Biological Chemistry, 2014
Background: Signaling pathways underlying beneficial effects of extracorporeal shock wave treatment (ESWT) remain to be completely elucidated. Results: ESWT enhances cell proliferation in vitro and wound healing in vivo.
A. Weihs, C. Fuchs, A. Teuschl, J. Hartinger, P. Slezak, R. Mittermayr, H. Redl, W. Junger, H. Sitte, Dominik Rünzler   +9 more
semanticscholar   +1 more source

Dual‐Mode Film Based on Highly Scattering Nanofibers and Upcycled Chips‐Bags for Year‐Round Thermal Management

Advanced Functional Materials, EarlyView.
Intelligent radiative cooling devices, adaptable to various weather conditions, have the potential for year‐round energy savings. This study introduces a sustainable dual‐mode film made from polycaprolactone nanofibers and upcycled chip bags for effective thermal management.
Qimeng Song, Stefan Rettinger, Chengzhang Xu, Ulrich Mansfeld, Markus Retsch   +4 more
wiley   +1 more source

Near-full density enabled excellent dynamic mechanical behavior in additively manufactured 316L stainless steels

Materials & Design
Mechanical properties of additively manufactured alloys are momentously affected by the fabrication defects, thus limiting their applications in extreme conditions.
Yuan Wang, Xuhai Li, Xiaotian Yao, Qiyue Hou, Zhiguo Li, Fengchao Wu, Yuying Yu, Xuemei Li, Jianbo Hu   +8 more
doaj   +1 more source