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Akademický článek
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Publikováno v:
In Technology in Society November 2022 71
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2002.
Includes bibliographical references.
A piezoelectrically-driven hydraulic amplification microvalve for use in high specific power hydraulic pumpi
Includes bibliographical references.
A piezoelectrically-driven hydraulic amplification microvalve for use in high specific power hydraulic pumpi
Externí odkaz:
http://hdl.handle.net/1721.1/8332
The design and fabrication of an automated workstation for the manufacture of fiber optic gyroscopes
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1998.
Includes bibliographical references (leaf 105).
by David C. Roberts.
M.S.
Includes bibliographical references (leaf 105).
by David C. Roberts.
M.S.
Externí odkaz:
http://hdl.handle.net/1721.1/50407
Autor:
Rica, Sergio, Roberts, David C.
Publikováno v:
Phys. Rev. A 80, 013609 (2009)
We model the behavior of N classical impurity fields immersed in a larger Bose-Einstein condensate by N+1 coupled nonlinear Schrodinger equations in 1, 2, and 3 space dimensions. We discuss the stability of the uniform miscible system and show the im
Externí odkaz:
http://arxiv.org/abs/0904.1569
Publikováno v:
PLoS ONE 5(5): e10355. 2010
Despite the apparent cross-disciplinary interactions among scientific fields, a formal description of their evolution is lacking. Here we describe a novel approach to study the dynamics and evolution of scientific fields using a network-based analysi
Externí odkaz:
http://arxiv.org/abs/0904.1234
Publikováno v:
Phys. Rev. Lett. 103, 085302 (2009)
The existence of frictionless flow below a critical velocity for obstacles moving in a superfluid is well established in the context of the mean-field Gross-Pitaevskii theory. We calculate the next order correction due to quantum and thermal fluctuat
Externí odkaz:
http://arxiv.org/abs/0904.0995
Autor:
Roberts, David C., Rica, Sergio
Publikováno v:
Phys. Rev. Lett. 102, 025301 (2009)
We investigate the behavior of impurity fields immersed in a larger condensate field in 1, 2, and 3 dimensions. We discuss the localization of a single impurity field within a condensate and note the effects of surface energy. We derive the functiona
Externí odkaz:
http://arxiv.org/abs/0812.0079
Autor:
Roberts, David C., Teodorescu, Razvan
Publikováno v:
Eur. Phys. J. S. T. 165, 103-109 (2008)
Using a recently introduced linear reformulation of the Kuramoto model of self-synchronizing oscillator systems (arXiv:0704.1166), we study a new class of analytically solvable oscillator systems defined by a particular coupling scheme. We show that
Externí odkaz:
http://arxiv.org/abs/0801.3449