Leslie O. Dart was a medical colleague of Thomas Sadler Roberts who shared an interest in birds and often accompanied Roberts on collection trips in the field in the late 1890s and early 1900s.
Creator:
Bell Museum of Natural History
Contributor:
Dart, Leslie O., 1868-1962 (Photographer)
Created:
1898
Contributed By:
University of Minnesota Libraries, University Archives.
This folder contains materials documenting state level work of the YMCA. Within a few years of the establishment of YMCA work at the national level, it became clear that a single organization for the entire United States and Canada could not meet the needs of local associations for ""mutual conference and discussion."" This folder specifically c...
Creator:
YMCA of the USA
Created:
1923 - 1925
Contributed By:
University of Minnesota Libraries, Kautz Family YMCA Archives.
This folder contains materials documenting state level work of the YMCA. Within a few years of the establishment of YMCA work at the national level, it became clear that a single organization for the entire United States and Canada could not meet the needs of local associations for ""mutual conference and discussion."" This folder specifically c...
Creator:
YMCA of the USA
Created:
1919 - 1984
Contributed By:
University of Minnesota Libraries, Kautz Family YMCA Archives.
10:45 - 11:00 a.m. Program Opens: Theme up: "Two hundred years ago..." Program Closes: "... presentation of the Minnesota School of the Air." Close. One of the richest and most powerful colonies in America was obviously Virginia, but to the disgust and disappointement of such men as Sam Adams, Virginia was remaining curiously inactive in the str...
Creator:
University of Minnesota. Radio Station KUOM
Created:
1972-11-30
Contributed By:
University of Minnesota Libraries, University Archives.
This folder contains materials documenting state level work of the YMCA. Within a few years of the establishment of YMCA work at the national level, it became clear that a single organization for the entire United States and Canada could not meet the needs of local associations for ""mutual conference and discussion."" This folder specifically c...
Creator:
YMCA of the USA
Created:
1907 - 1929
Contributed By:
University of Minnesota Libraries, Kautz Family YMCA Archives.
This folder contains materials documenting state level work of the YMCA. Within a few years of the establishment of YMCA work at the national level, it became clear that a single organization for the entire United States and Canada could not meet the needs of local associations for ""mutual conference and discussion."" This folder specifically c...
Creator:
YMCA of the USA
Created:
1932 - 1937
Contributed By:
University of Minnesota Libraries, Kautz Family YMCA Archives.
The virial theorem is a nice property for the linear Schrödinger equation in atomic and molecular physics as it gives an elegant ratio between the kinetic and potential energies and is useful in assessing the quality of numerically computed eigenvalues. If the governing equation is a nonlinear Schr\"{o}dinger equation with power-law nonlinearity...
Creator:
Lin, Tai-Chia (National Taiwan University)
Created:
2016-11-07
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
A schedule of virtual events in Duluth and the surrounding area for March 21, 2020. The Facebook page Virtual Duluth is "A place to post all the upcoming virtual events happening in Duluth by so many of our talented community members."
Creator:
Dressel, Matt
Created:
2020-03-21
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
A schedule of virtual events in Duluth and the surrounding area for March 19, 2020. The Facebook page Virtual Duluth is "A place to post all the upcoming virtual events happening in Duluth by so many of our talented community members."
Creator:
Dressel, Matt
Created:
2020-03-19
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
We apply the Virtual Element approach for the discretization of advection-diffusion-reaction problems with variable coefficients on polygonal grids. We analyze both the primal and the mixed formulation, and prove optimal convergence results in H1 and in L2. We provide numerical tests confirming the theoretical results.
Creator:
Marini, Donatella (Università di Pavia)
Created:
2014-10-24
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
We present and analyse a family of approximations of magneto-static problems based on the Virtual Element approach in two and three dimensions. The magnetic field H is discretized as an edge Virtual Element, and the (given) current density is interpolated as a face Virtual Element. The constitutive equation is imposed strongly, and the condition...
Creator:
Marini, Donatella (Università di Pavia)
Created:
2017-07-01
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
The talk will review the Virtual Element spaces, recently introduced by the speaker and co-authors in order to approximate spaces of the type H(div) or H(curl) on polygonal and polyhedral decompositions. As is well known, these spaces are needed in the approximation of boundary value problems for (systems of) Partial Differential Equations in mi...
Creator:
Brezzi, Franco (Istituto Universitario di Studi Superiori)
Created:
2014-10-24
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
A major transition in the operation of electric power grids is the replacement of bulk generation based on synchronous machines by distributed generation based on low-inertia power electronic sources. The accompanying "loss of rotational inertia" and the fluctuations by renewable sources jeopardize the system stability, as testified by the ever-...
Creator:
Dorfler, Florian (ETH Zürich)
Created:
2016-05-12
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
In an effort to efficiently manufacture quality products, numerical models and empirical measurements are used to predict (virtually) the performance of a hearing aid. Finite element analysis is used to study multi-physics processes such as thermo-mechanically induced stress due to heat flow from soldering, acoustic and structural interactions d...
Creator:
Burns, Thomas H. (Starkey Laboratories)
Created:
2008-10-17
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
We discuss bacterial biofilms and the scope for describing their viscoelastic mechanical properties as a consequence of their underlying polymeric and multiphase morphology. Biofilms are the most prevalent phenotype of bacteria in nature. Biofilms form under conditions common in industry and in the body. They are structurally heterogeneous on mu...
Creator:
Solomon, Michael J. (University of Michigan)
Created:
2009-09-15
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Master equation is a powerful tool for studying McKean-Vlasov dynamics where the distribution of the state process enters the coefficients directly, with particular applications including mean field games and stochastic control problems with partial information. In this talk we propose an intrinsic notion of viscosity solution for parabolic mast...
Creator:
Zhang, Jianfeng (University of Southern California)
Created:
2018-06-13
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
I will present an hydrodynamic model for the motility of keratocytes orfibroblasts on substrates in vitro. Cells or fragment of cells have beenobserved to switch from a stationary round state to a motile andanisotropic crescent-shaped state. Experimentally, a polarization of theactin network occurs in a preferred direction prior to motility andd...
Creator:
Ben Amar, Martine (École Normale Supérieure)
Created:
2009-03-23
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Joint work with H. Kim and T. Funada.The problem of radial fingering in two phase gas/liquid flow ina Hele-Shaw cell under injection or withdrawal is studied here.The problem is analyzed as a viscous potential flow VPF inwhich the potential flow analysis of Paterson 1981 and othersis augmented to account for the effects of viscosity on thenormal...
Creator:
Joseph, Daniel D. (University of Minnesota, Twin Cities)
Created:
2008-07-14
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
An engineer tests a memory package in the Visible Record Computer. The circuit boards and "logic pods" are partially removed to make them visible in the photograph.
Created:
1959
Contributed By:
University of Minnesota Libraries, Charles Babbage Institute.
Split drawing; right side shows man sitting on prison bench with rats at his feet while left side shows man in blue trench coat with paper hat and red shoes standing in a padded room
Creator:
D'Ostoya
Created:
1914 - 1918
Contributed By:
University of Minnesota Libraries, Special Collections and Rare Books.
