Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Evert Jan Nijhof"'
Autor:
Evert-Jan Nijhof
Publikováno v:
Human Movement Science. 22:13-36
Sometimes a goal-directed arm movement has to be modified en route due to an unforeseen perturbation such as a target displacement or a hand displacement by an external force. In this paper several aspects of that modification process are addressed.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5136b233cb5be9656a70092ed212c757
https://doi.org/10.1016/s0167-9457(02)00140-9
https://doi.org/10.1016/s0167-9457(02)00140-9
Publikováno v:
Human Movement Science. 18:525-552
Bi-manual movement tasks present us with an intriguing paradox: on one hand it is clear that we are capable of controlling our hands independently, yet at the same time we often notice that one hand influences the other. We investigated bi-manual poi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c2846f616f30c18aeb0bef92afba292
https://doi.org/10.1016/s0167-9457(99)00021-4
https://doi.org/10.1016/s0167-9457(99)00021-4
Publikováno v:
Clinical Hemorheology and Microcirculation. 16:151-163
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f1b4c5182391e82bdf05f9af66de4a0
https://doi.org/10.3233/ch-1996-16207
https://doi.org/10.3233/ch-1996-16207
Autor:
Evert-Jan Nijhof, Wim S. J. Uijttewaal
Publikováno v:
Journal of Fluid Mechanics. 302:45-63
A fluid droplet subjected to shear flow deforms and rotates in the flow. In the presence of a wall the droplet migrates with respect to a material element in the undisturbed flow field. Neglecting fluid inertia, the Stokes problem for the droplet is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1da203b56eb39dd3e65435846b03cb88
https://doi.org/10.1017/s0022112095004009
https://doi.org/10.1017/s0022112095004009
Autor:
J. Grimbergen, Evert-Jan Nijhof, Jan J. Sixma, P.J.H. Bronkhorst, G.J. Brakenhoff, G.J. Streekstra
Publikováno v:
Biophysical Journal, 69, 1666-1673. Biophysical Society
Biophysical journal, 69(5), 1666-1673. Biophysical Society
Biophysical journal, 69(5), 1666-1673. Biophysical Society
In this new method for studying the shape recovery of deformed red blood cells, three optical traps ("optical tweezers") induce a parachute-shaped red cell deformation, which is comparable to the deformation in small capillaries. The shape recovery i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4825237d8cba29e11bf77fc5f015b3ba
https://doi.org/10.1016/s0006-3495(95)80084-6
https://doi.org/10.1016/s0006-3495(95)80084-6
Publikováno v:
Clinical Hemorheology and Microcirculation. 15:803-816
In ektacytometry (or laser-diffractometry), the deformation of red blood cells subjected to a series of shear stresses in Couette flow (high to low) is measured. The shear stress dependency of the measured deformation index DI is called a "deformatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c3eaf18a7a5de20c91007287edff2300
https://doi.org/10.3233/ch-1995-15602
https://doi.org/10.3233/ch-1995-15602
Publikováno v:
Clinical Hemorheology and Microcirculation. 14:769-778
In order to obtain insight into the relation between blood viscosity and plasma viscosity, we measured these two parameters in 18 Nephrotic Syndrome patients (NS) and in 17 controls. We also measured red cell deformability (ektacytometry) and plasma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::76654e88cf355703bd2311986f32e1a4
https://doi.org/10.3233/ch-1994-14602
https://doi.org/10.3233/ch-1994-14602
Publikováno v:
Physics of Fluids A: Fluid Dynamics. 5:819-825
The motion of a deformable drop in linear unidirectional shear flow close to a fixed wall is considered using a boundary integral technique for Stokes flow. This problem is solved numerically to circumvent the limitations of existing analytical model
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::daf75caf87f56d65839044acd5d2c556
https://doi.org/10.1063/1.858629
https://doi.org/10.1063/1.858629
Publikováno v:
Applied optics, 32(13), 2266-2272
In the present literature on ektacytometry, small angle light scattering by ellipsoidal red blood cells is commonly approximated by Fraunhofer diffraction. Calculations on a sphere with the size and relative refractive index of a red cell, however, s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6df872cfa5c18f94dd7ed92f876c1a2b
https://doi.org/10.1364/ao.32.002266
https://doi.org/10.1364/ao.32.002266
Autor:
Evert Jan Nijhof, David A. Gabriel
Publikováno v:
Journal of biomechanics. 39(4)
In this paper, we measured the maximum isometric force at the hand in eight directions in the horizontal plane and at five positions in the workplace. These endpoint forces were the result of shoulder horizontal adduction/abduction and elbow flexion/
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2d0d5cc2c0aeaf3c10126907315afeb4
https://pubmed.ncbi.nlm.nih.gov/16439240
https://pubmed.ncbi.nlm.nih.gov/16439240