Invisible Rays

[Ban the laser weapons! Invisible rays may cause permanent blindness in thousands of war victims].

Invisible Un-removable Field: A Search by Ultra-High Energy Cosmic Rays

A Toy model which introduces the different limiting velocities for each particleis discussed: the differentiation of the universal limiting velocity is implemented throgh the coupling with external tensor or vector field, something like Higgs scalar field. GZK cutoff discussion could be altered due to the violation of Lorentz symmetry.

Invisible Obstacles * †

It is proved that one can choose a control function on an arbitrarilly small open subset of the boundary of an obstacle so that the total radiation from this obstacle for a fixed direction of the incident plane wave and for a fixed wave number will be as small as one wishes. The obstacle is called “invisible” in this case.

Invisible Computing

The computer is no longer a tool solely used for enhancing the productivity of organizational tasks. Rather, computing capability now is embedded into our everyday artifacts, enabling our daily activities to become smarter and easier. As a result, the way we interact with computers has radically changed in the past few years: computing is now being designed for activity-oriented users. Thus, as...

Invisible woman?

The number of invited women speakers at scientific meetings is much less than their proportion in a field. This means that women have fewer venues to present their research, less opportunity to increase their professional network, and smaller chances of promotion and financial support. The paucity of women speakers also sends a message to aspiring young female researchers that there is no room ...