نتایج جستجو برای: shaly formations

تعداد نتایج: 9886  

2015
Jadwiga A. Jarzyna Paulina I. Krakowska Edyta Puskarczyk Roman Semyrka

Combination of laboratory measurements res ults of various properties, i.e. porosity, density, permeability and mineral composition, was done to get additional factors useful in fluid flow description in the Miocene sandy-shaly formation. Special computer processing of nuclear magnetic resonance outcomes and mercury injection porosimetry results turned out to be useful in the estimation of the ...

Journal: :Swiss Journal of Geosciences 2021

Abstract Seismic anisotropy and attenuation make claystone formations difficult to characterize. On the other hand, in many geotechnical environments, precise knowledge of structure elastic properties clay is needed. In crystalline rock salt underground structures, high-resolution seismic tomography reflection imaging have proven a useful tool for structural mechanical characterization at scale...

Journal: :Big Data & Society 2021

This commentary uses Paul Gilroy’s controversial claim that new technoscientific processes are instituting an ‘end to race’ as a provocation discuss the epistemological transformation of race in algorithmic culture. We situate within context abolitionist agenda against racial-thinking, underscoring relationship between his post-race polemic and post-visual discourse. then challenges studying re...

2005
Tolga Eren Walter Whiteley Peter N. Belhumeur

This paper is concerned with information structures used in rigid formations of autonomous agents that have leaderfollower architecture. The focus of this paper is on sensor/network topologies to secure control of rigidity. We extend our previous approach for formations with symmetric neighbor relations to include formations with leader-follower architecture. Necessary and sufficient conditions...

2001
Paulo Tabuada George J. Pappas Pedro Lima

Formations of multi-agent systems, such as satellites and aircraft, require that individual agents satisfy their kinematic equations while constantly maintaining inter-agent constraints. In this paper, we develop a systematic framework for studying formations of multiagent systems. In particular, we consider undirected formations for centralized formations and directed formations for decentrali...

Journal: :Transport in Porous Media 2022

Abstract Geologic carbon storage in deep saline aquifers has emerged as a promising technique to mitigate climate change. CO 2 is buoyant at the conditions and tends float over resident brine jeopardizing long-term containment goals. Therefore, caprock sealing capacity of great importance requires detailed assessment. We perform supercritical injection experiments on shaly samples (intact fault...

2003
David J. Naffin Gaurav S. Sukhatme

We present a decentralized, behavior-based approach to assembling and maintaining robot formations. Our approach dynamically grows formations from single robots into line segments and ultimately larger and more complex formations. Formation growth occurs by negotiation when robots are in close proximity. The approach has been validated using simulation as well as experiments with physical robot...

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