699 research outputs found
A computational algorithm for crack determination: The multiple crack case
An algorithm for recovering a collection of linear cracks in a homogeneous electrical conductor from boundary measurements of voltages induced by specified current fluxes is developed. The technique is a variation of Newton's method and is based on taking weighted averages of the boundary data. The method also adaptively changes the applied current flux at each iteration to maintain maximum sensitivity to the estimated locations of the cracks
Anmeldelse af: Alberto Gabriele, <i>The Emergence of Pre-Cinema: Print Culture and the Optical Toy of the Literary Imagination</i>
Housing Reform and the Ghetto Law in the Time of Covid
This short personal essay considers the principles behind housing reform in New York at the turn of the last century in light of the controversies around the ghetto law in contemporary Denmark. I take the example of documentary journalist and reformer Jacob Riis, who photographed housing conditions in immigrant neighbor-hoods on the Lower East Side in New York at the turn of the twentieth century, as a case study for considering the ways that race informed—and continues to inform—ideals around urban planning. Conversely, I also consider contemporary controversies around the ghetto law, and activism by community members as a way of re-thinking a research approach to historical urban reforms
Rotational cooling of molecules using lamps
We investigate theoretically the application of tailored incoherent
far-infrared fields in combination with laser excitation of a single
rovibrational transition for rotational cooling of translationally cold polar
diatomic molecules. The cooling schemes are effective on a timescale shorter
than typical unperturbed trapping times in ion traps and comparable to
obtainable confinement times of neutral molecules.Comment: 5 pages, 2 figure
Existence and blow up of solutions to certain classes of two-dimensional nonlinear Neumann problems
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