Results 111 to 120 of about 1,112,087 (296)

Time‐Dependent Oxidation and Scale Evolution of a Wrought Co/Ni‐Based Superalloy

Advanced Engineering Materials, EarlyView.
This study shows how a new wrought Co/Ni‐based superalloy resists oxidation at 800 ∘$^\circ$C. The oxide scale changes from rough, fast‐growing spinel to a dense, protective chromia–alumina layer. Atom probe analysis reveals tiny refractory‐rich bubbles at the interface that mark the transition to long‐term, diffusion‐controlled protection ...
Cameron Crabb, Zachary T. Kloenne, Samuel R. Rogers, Chi Hang Dominik Kwok, Mark C. Hardy, Michele S. Conroy, David Dye   +6 more
wiley   +1 more source

Properties of the laminar-turbulent transition in a mixing layer by the low-frequency disturbance (Effect of the anti-symmetrical disturbance)

Journal of Fluid Science and Technology, 2014
The laminar-turbulent transition of a mixing layer excited by oscillating flat plates at an exit of a two-dimensional nozzle was experimentally investigated. The mixing layer was formed between the jet issued from the nozzle and the surrounding quiescent
Masashi ICHIMIYA, Hiroshi SAKAI, Takeshi OOHARA   +2 more
doaj   +1 more source

The influence of spin on jet power in neutron star X-ray binaries

, 2011
We investigate the role of the compact object in the production of jets from neutron star X-ray binaries. The goal is to quantify the effect of the neutron star spin, if any, in powering the jet.
Altamirano, Anderson, Blandford, Blandford, Bradshaw, Cai, Campbell, Casella, Chakrabarty, Corbel, Corbel, Coriat, Coriat, D. M. Russell, Falcke, Fender, Fender, Fender, Fender, Fender, Fender, Fender, Ferreira, Ferreira, Ferreira, Fomalont, Gaensler, Gallo, Giles, Greenhill, Hasinger, Henri, Hjellming, Hjellming, Homan, J. C. A. Miller-Jones, Jonker, Jonker, Kato, Krauss, Kubota, Königl, Körding, Körding, Körding, Lewis, Lin, Lin, Linares, Maitra, Merloni, Migliari, Migliari, Migliari, Migliari, Migliari, Migliari, Migliari, Miller-Jones, Miller-Jones, Moore, Penninx, Pooley, Psaltis, Reig, Remillard, Romanova, Rupen, Rupen, Rupen, Russell, Russell, Russell, Rutledge, S. Migliari, Sanna, Shu, Soleri, Soleri, Strohmayer, Tan, Torres, Tudose, Valentim, van der Klis, van Straaten, Wang, Watts   +87 more
core   +1 more source

Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A

Advanced Engineering Materials, EarlyView.
The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han, Julian M. Rosalie, Jan Radners, Mauro Madia, Philipp von Hartrott, Birgit Skrotzki   +5 more
wiley   +1 more source

Numerical Simulation Study on Supercritical Nitrogen Jet Flow Field

Shiyou jixie, 2021
Conventional hydraulic fracturing technology faces problems such as high fracture initiation pressure and difficult packer setting in the stimulation of hot dry rock reservoirs.
Luo Yi, Huang Zhongwei, Shi Huaizhong, Xiong Chao, Yang Ruiyue, Chen Zhenliang   +5 more
doaj  

Structural analysis of dynamic-controlled jet using DNS

Journal of Fluid Science and Technology, 2014
In order to develop a new mixing procedure, we conduct DNS (direct numerical simulation) of dynamic controlled free jets. As the dynamic control, it is assumed that the inflow of jet rotates around the streamwise axis.
Koichi TSUJIMOTO, Noritaka SHIBATA, Toshihiko SHAKOUCHI, Toshitake ANDO   +3 more
doaj   +1 more source

In Situ Micromechanical Study of Bimodal γ′–γ″ Precipitate Assemblies in Ni–Cr–Al–Nb Superalloy

Advanced Engineering Materials, EarlyView.
A Ni–Cr–Al–Nb superalloy with a bimodal γ′–γ″ precipitate distribution is developed. Composite precipitate assemblies form through heterogeneous nucleation, effectively impeding dislocation motion. Micropillar compression reveals high strength at room and elevated temperatures, governed by precipitate shearing, with coupled faulting mechanisms ...
Ujjval Bansal, Tae‐Hyeok Kang, Pyuck‐Pa Choi, Subin Lee, Christoph Kirchlechner   +4 more
wiley   +1 more source

Active Control of an Axisymmetric Turbulent Jet Using Moving Delta Tabs

Journal of Fluid Science and Technology, 2008
For the development of an active control of a turbulent jet, measurements of an axisymmetric turbulent jet were performed with multiple “moving delta tabs.” Five computercontrolled delta tabs, which can be driven independently, were installed
Kouji NAGATA, Yasuhiko SAKAI, Michimasa SHIROSAWA, Takashi KUBO   +3 more
doaj   +1 more source

3D (Bio) Printing Combined Fiber Fabrication Methods for Tissue Engineering Applications: Possibilities and Limitations

Advanced Functional Materials, EarlyView.
Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana, Indra Apsite, Leonid Ionov   +2 more
wiley   +1 more source

Formation of Single Bubbles from a Submerged Orifice Using Pulsed Ultrasound Waves

Journal of Fluid Science and Technology, 2008
A new experimental method is presented in which single small gas bubbles are generated in a liquid from a submerged orifice using pulsed ultrasound waves.
Minori SHIROTA, Tomohiro IMAMURA, Masaharu KAMEDA   +2 more
doaj   +1 more source