Results 31 to 40 of about 1,012,195 (280)

Instability characteristics of the cracked roof rock beam under shallow mining conditions

International Journal of Mining Science and Technology, 2018
To establish the movement relationship for the roof breaking under shallow mining conditions, the mechanical model of the roof rock beam was built, then the structure instability process of the roof rock beam was analyzed.
Yanhai Zhao, Shuren Wang, Zhengsheng Zou, Linlin Ge, Fang Cui   +4 more
doaj   +1 more source

Time-Dependent Analysis of Precast Segmental Bridges

International Journal of Concrete Structures and Materials, 2021
Prestressed segmentally constructed balanced cantilever bridges are often subjected to larger deflections than those predicted by calculations, especially for long-term effects.
Gian Felice Giaccu, Davide Solinas, Bruno Briseghella, Luigi Fenu   +3 more
doaj   +1 more source

Lunar deflections of the vertical and their distribution

Natural Science, 2011
The deflection of the vertical reflects the mass distribution and density anomaly of celestial bodies. Lunar deflections of the vertical include directional information of the Moon’s gravity field. SGM90d, recovered from SELENE mission, revealed the lunar far side gravity field for the first time in history owes to 4-way Doppler data. Lunar deflections
Jinyun Guo, Yu Sun, Xiaotao Chang, Fanlin Yang   +3 more
openaire   +2 more sources

Gravimetric interpolation of the deflection of the vertical [PDF]

New Zealand Journal of Geology and Geophysics, 1971
Abstract The horizontal gravity anomaly vector h , and hence the components of the deflection of the vertical, is interpolated from the surrounding discrete observations of gravity anomaly g j
openaire   +1 more source

Optimizing photoexcitation conditions for time‐resolved X‐ray solution scattering experiments

FEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering (TR‐XSS) is a powerful technique to visualize how proteins change their structure in real time after light activation. Selecting the right laser photoexcitation conditions—fluence, excitation geometry, and sample refresh rate—is critical to maximize the experimental signal while avoiding unwanted side effects ...
Matteo Levantino
wiley   +1 more source

Distribution of the Velocity Profile via Analytical and Three-Dimensional Numerical Vegetation Modeling [PDF]

Journal of Applied Fluid Mechanics
Understanding the ecological conditions of vegetation growth in water sources is vital to appraise the influence of vegetation on river engineering.
A. A. Hussain, M. A. Al-Obaidi, A. S. Mohammed, Y. M. John, F. L. Rashid   +4 more
doaj   +1 more source

Analysis of vertical deflection periodic variations [PDF]

The 9th International Conference "Environmental Engineering 2014", 2014
Most of the geodetic measurements are related with the direction of gravity or vertical. Angular, height difference measurements are performed in horizontal coordinate system. Geodetic measurement data are reduced to a uniform coordinate system prior to processing, taking into account gravity field nonhomogenity.
Romuald Obuchovski, Petras Petroškevičius, Darius Popovas   +2 more
openaire   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

Modified Reed Equation of Blast Load on Plate with Stiffener

Civil and Environmental Engineering, 2021
The purpose of this study is to analyze numerically the effect of explosions on orthotropic slabs which have partial fixity placement and stiffeners in the x direction, namely in the short span direction.
Buwono Haryo Koco, Alisjahbana Sofia W., Najid   +2 more
doaj   +1 more source

Symmetry‐Guided Multifunctional Acoustic System Based on Mechanically Actuated Sonic Crystals

Advanced Engineering Materials, EarlyView.
This study presents the design, simulation, and experimental validation of amultifunctional acoustic metamaterial based on rotationally engineered sonic crystals.By tuning cylinder orientations, controllable band gaps and six distinct functionalities—including switching, topological insulation, beam splitting, and logic operations—areachieved ...
Yuanyan Zhao, Sriram Subramanian, Gianluca Memoli   +2 more
wiley   +1 more source