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Noncontact racK and pinion powered by the lateral Casimir force.
Ashourvan A, Miri M, Golestanian R. Ashourvan A, et al. Phys Rev Lett. 2007 Apr 6;98(14):140801. doi: 10.1103/PhysRevLett.98.140801. Epub 2007 Apr 5. Phys Rev Lett. 2007. PMID: 17501261
The lateral Casimir force is employed to propose a design for a potentially wear-proof rack and pinion with no contact, which can be miniaturized to the nanoscale. ...It is shown that the device can hold up extremely high velocities, unlike what the general percepti …
The lateral Casimir force is employed to propose a design for a potentially wear-proof rack and pinion with no contact, which …
Rectification of the lateral Casimir force in a vibrating noncontact rack and pinion.
Ashourvan A, Miri M, Golestanian R. Ashourvan A, et al. Phys Rev E Stat Nonlin Soft Matter Phys. 2007 Apr;75(4 Pt 1):040103. doi: 10.1103/PhysRevE.75.040103. Epub 2007 Apr 9. Phys Rev E Stat Nonlin Soft Matter Phys. 2007. PMID: 17500845
The nonlinear dynamics of a cylindrical pinion that is kept at a distance from a vibrating rack is studied, and it is shown that the lateral Casimir force between the two corrugated surfaces can be rectified. ...We present a phase diagram for the recti …
The nonlinear dynamics of a cylindrical pinion that is kept at a distance from a vibrating rack is studied, and it is s …
How mesoscopic staircases condense to macroscopic barriers in confined plasma turbulence.
Ashourvan A, Diamond PH. Ashourvan A, et al. Phys Rev E. 2016 Nov;94(5-1):051202. doi: 10.1103/PhysRevE.94.051202. Epub 2016 Nov 18. Phys Rev E. 2016. PMID: 27967012
When PV gradients steepen, the density staircase structure develops into a lattice of mesoscale "jumps" and "steps," which are, respectively, regions of local gradient steepening and flattening. The jumps then merge and migrate in radius, leading to the emergence of a
When PV gradients steepen, the density staircase structure develops into a lattice of mesoscale "jumps" and "steps," which are, respe …
Active spectroscopy measurements of the deuterium temperature, rotation, and density from the core to scrape off layer on the DIII-D tokamak (invited).
Haskey SR, Grierson BA, Stagner L, Chrystal C, Ashourvan A, Bortolon A, Boyer MD, Burrell KH, Collins C, Groebner RJ, Kaplan DH, Pablant NA. Haskey SR, et al. Among authors: ashourvan a. Rev Sci Instrum. 2018 Oct;89(10):10D110. doi: 10.1063/1.5038349. Rev Sci Instrum. 2018. PMID: 30399818
Formation of a High Pressure Staircase Pedestal with Suppressed Edge Localized Modes in the DIII-D Tokamak.
Ashourvan A, Nazikian R, Belli E, Candy J, Eldon D, Grierson BA, Guttenfelder W, Haskey SR, Lasnier C, McKee GR, Petty CC. Ashourvan A, et al. Phys Rev Lett. 2019 Sep 13;123(11):115001. doi: 10.1103/PhysRevLett.123.115001. Phys Rev Lett. 2019. PMID: 31573275
Reconfigurations within resonating communities of brain regions following TMS reveal different scales of processing.
Garcia JO, Ashourvan A, Thurman SM, Srinivasan R, Bassett DS, Vettel JM. Garcia JO, et al. Among authors: ashourvan a. Netw Neurosci. 2020 Jul 1;4(3):611-636. doi: 10.1162/netn_a_00139. eCollection 2020. Netw Neurosci. 2020. PMID: 32885118 Free PMC article.
Impact of childhood adversity on network reconfiguration dynamics during working memory in hypogonadal women.
Shanmugan S, Cao W, Satterthwaite TD, Sammel MD, Ashourvan A, Bassett DS, Ruparel K, Gur RC, Epperson CN, Loughead J. Shanmugan S, et al. Among authors: ashourvan a. Psychoneuroendocrinology. 2020 Sep;119:104710. doi: 10.1016/j.psyneuen.2020.104710. Epub 2020 May 19. Psychoneuroendocrinology. 2020. PMID: 32563173
Temporal sequences of brain activity at rest are constrained by white matter structure and modulated by cognitive demands.
Cornblath EJ, Ashourvan A, Kim JZ, Betzel RF, Ciric R, Adebimpe A, Baum GL, He X, Ruparel K, Moore TM, Gur RC, Gur RE, Shinohara RT, Roalf DR, Satterthwaite TD, Bassett DS. Cornblath EJ, et al. Among authors: ashourvan a. Commun Biol. 2020 May 22;3(1):261. doi: 10.1038/s42003-020-0961-x. Commun Biol. 2020. PMID: 32444827 Free PMC article.
Model-based design for seizure control by stimulation.
Ashourvan A, Pequito S, Khambhati AN, Mikhail F, Baldassano SN, Davis KA, Lucas TH, Vettel JM, Litt B, Pappas GJ, Bassett DS. Ashourvan A, et al. J Neural Eng. 2020 Mar 26;17(2):026009. doi: 10.1088/1741-2552/ab7a4e. J Neural Eng. 2020. PMID: 32103826
High interictal connectivity within the resection zone is associated with favorable post-surgical outcomes in focal epilepsy patients.
Shah P, Bernabei JM, Kini LG, Ashourvan A, Boccanfuso J, Archer R, Oechsel K, Das SR, Stein JM, Lucas TH, Bassett DS, Davis KA, Litt B. Shah P, et al. Among authors: ashourvan a. Neuroimage Clin. 2019;23:101908. doi: 10.1016/j.nicl.2019.101908. Epub 2019 Jun 19. Neuroimage Clin. 2019. PMID: 31491812 Free PMC article.
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