Results 61 to 70 of about 345,322 (316)

About some aspects of explosion in the soils of artificial structures

Nauka ta progres transportu, 2013
Purpose. To define actual and prospective research guidelines of the destruction of patchy soil masses under the influence of explosions as well as the peculiarities of the explosion waves expansion throughout the boundaries of mediums separation in ...
V. P. Berbushenko, O. V. Marushyak
doaj  

Investigation on the propagation characteristics of pressure wave during managed pressure drilling

Frontiers in Energy Research
The small difference between formation pressure and fracture pressure in offshore oil and gas reservoirs poses a huge challenge to drilling. Managed pressure drilling (MPD) technology, as a drilling technique that can accurately control bottomhole ...
Yanan Hou, Zhong Li, Zhiming Yin, Baitao Fan, Yingwen Ma, Xiangqian Yang, Deqiang Tian, Wenjun Cai, Meipeng Ren, Xingquan Zhang   +9 more
doaj   +1 more source

Variable Stiffness Flexure Structures Enabled by Phase‐Change Gallium and Adhesive Interfacial Locking for Soft Robotic Applications

Advanced Engineering Materials, EarlyView.
A flexure‐based variable stiffness structure is developed by integrating phase‐change modulation and adhesive interfacial locking of gallium. The design enables a wide stiffness variability, transitioning from soft, flexible behavior to rigid, load‐supporting performance.
Sungjin Kim, Sohee John Yoon, Yong‐Lae Park   +2 more
wiley   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source

Selection and experimental evaluation of low-cost porous materials for regenerator applications in thermoacoustic engines [PDF]

, 2010
This paper aims at evaluating three selected low-cost porous materials from the point of view of their suitability as regenerator materials in the design of thermoacoustic travelling-wave engines.
Yu, Z., Jaworski, A.J., Abduljalil, Abdulrahman S., Artur J. Jaworski, Yu, Zhibin, Yu, Z, Jaworski, Arthur J., Abduljalil, A.S., Abdulrahman S. Abduljalil, Zhibin Yu, Jaworski, AJ, Abduljalil, AS   +11 more
core   +1 more source

Analysis of Pressure Rise in a Closed Container Due to Internal Arcing

Energies, 2017
When an arc fault occurs in a medium-voltage (MV) metal enclosed switchgear, the arc heats the filling gas, resulting in a pressure rise, which may seriously damage the switchgear, the building it is contained in, or even endanger maintenance personnel ...
Peng Li, Jiangjun Ruan, Daochun Huang, Ziqing OuYang, Li Zhang, Mingyang Long, Mengting Wei   +6 more
doaj   +1 more source

Solid‐State Diffusion and Intermetallic Phase Formation in Roll‐Bonded Mg–Zn Composites With Kirigami‐Patterned Inlay

Advanced Engineering Materials, EarlyView.
Mg–Zn composites with a thickness of 0.21 mm were fabricated using roll bonding of a kirigami‐patterned Mg alloy inlay within a Zn matrix. Thermal activation following this process led to the formation of tailored intermetallic structures, which provided the composite with enhanced flexural strength.
Yaroslav Frolov, Oleksandr Bobukh, Christian Klose, Florian Nürnberger, Hans Jürgen Maier   +4 more
wiley   +1 more source

Dual simulations of fluid flow and seismic wave propagation in a fractured network : effects of pore pressure on seismic signature [PDF]

, 2006
Fluid flow in the Earth's crust plays an important role in a number of geological processes. In relatively tight rock formations such flow is usually controlled by open macrofractures, with significant implications for ground water flow and hydrocarbon ...
Main, I.G., Li, X.Y., Vlastos, S., Schoenberg, M., Narteau, C., Li, X. Y., Maillot, B., Liu, E., Main, I. G.; id_orcid   +8 more
core   +1 more source

Shock Pressure of Breaking Wave

Coastal Engineering 1966, 1966
Shock pressure due to breaking wave was studied experimentally and analytically for the case of two-dimensional regular oscillatory wave. In the first part of this paper, important characteristics of shock pressures were described, which were obtained by using the newly designed pressure gauges of very high frequency responces ( 10 ~ 10000 c/s ).
openaire   +2 more sources

Decay of Weak Pressure Waves in a Low Pressure Tube.

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 1996
In this study, the characteristics of pressure wave propagation in a vacuum tube have been investigated experimentally from the viewpoint of vacuum protection in the beamlines of a synchrotron radiation facility. Baffle plates having a single orifice of 5, 10 or 15 mm in diameter were installed in shock tubes 5 m in length and 36.6 or 68.8 mm in ...
TAKIYA, Toshio, HIGASHINO, Fumio, ABE, Hideaki, TERADA, Yukihiro, KOMURA, Akio, ANDO, Masami   +5 more
openaire   +3 more sources