Results 31 to 40 of about 177,091,919 (225)

Lunar deflections of the vertical and their distribution

open access: yesNatural 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   +3 more
openaire   +2 more sources

The long-term mechanical performance of geogrid-reinforced soil retaining walls under cyclic footing loading

open access: yesCase Studies in Construction Materials, 2022
The soil behind the retaining wall may be subjected to various cyclic loadings, for example, machine vibration, traffic and earthquake loading. To reduce soil deformation and improve the stability of a soil retaining wall, geosynthetics have been widely ...
Ying Liu   +3 more
doaj   +1 more source

Gravimetric interpolation of the deflection of the vertical [PDF]

open access: yesNew 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

open access: yesFEBS 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

Penggunaan Accelerometer MMA7361 sebagai Alternatif Pengukuran Lendutan pada Jembatan Secara Nirkabel Berbasis ATmega32

open access: yesJurnal Rekayasa Elektrika, 2016
A bridge is planned and built with a certain capability against vehicles through it. The vehicles movement causes vibration and vertical deflection on certain parts of the bridge.
Mohd Syaryadhi   +2 more
doaj   +1 more source

Analysis of vertical deflection periodic variations [PDF]

open access: yesThe 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   +2 more
openaire   +1 more source

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

open access: yesAdvanced 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   +8 more
wiley   +1 more source

DIGITAL ZENITH CAMERA FOR VERTICAL DEFLECTION DETERMINATION

open access: yesGeodesy and Cartography, 2012
Recent accomplishments in advancement of accurate astrometric reference star catalogues, development of digital imaging technology, high accuracy tiltmeter technology, and geocentric coordinate availability provided by GNSS, have made possible accurate, fast and automated determination of vertical deflections using astrometric methods.
Abele, Māris   +5 more
openaire   +2 more sources

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

open access: yesAdvanced 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   +2 more
wiley   +1 more source

Light-touch2 : a laser-based solution for the deflection, manipulation and exploitation of small asteroids [PDF]

open access: yes, 2013
This paper presents the preliminary mission and system analysis of a small-scale, light-weight system for the deflection, manipulation and exploitation of small size asteroids. The system proposed in this paper, called Light-Touch2, uses lasers to ablate
Wayman, Alastair   +11 more
core   +3 more sources

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