Nanomechanics of a magnetic shuttle device

the significance of conjunction as a cohesive device in teaching writing

the research questions were as follows: 1. is there any relationship between the students concious awareness of the form and implications of the conjuncations and their improvement in using appropriate conjunctions? 2. does students knowledge of the from and the implications of the conjunctions help them to produce more coherent writings. 3. does a comparison between english conjunctions and th...

Reversible Mechanical Switching of Magnetic Interactions in a Molecular Shuttle

An acid-base switchable molecular shuttle based on a [2]rotaxane, incorporating stable radical units in both the ring and dumbbell components, is reported. The [2]rotaxane comprises a dibenzo[24]crown-8 ring (DB24C8) interlocked with a dumbbell component that possesses a dialkylammonium (NH2 (+)) and a 4,4'-bipyridinium (BPY(2+)) recognition site. Deprotonation of the rotaxane NH2 (+) centers e...

“Bucky Shuttle” Memory Device: Synthetic Approach and Molecular Dynamics Simulations

Thermal treatment is reported to convert finely dispersed diamond powder to multiwall carbon nanocapsules containing fullerenes such as C60. We investigate the internal dynamics of a related model system, consisting of a K@C60 endohedral complex enclosed in a C480 nanocapsule. We show this to be a tunable two-level system, where transitions between the two states can be induced by applying an e...

Magnetic storage device using induced magnetic reversal of a cobalt

Nanomechanics of carbon nanotubes.

Some of the most important potential applications of carbon nanotubes are related to their mechanical properties. Stiff sp2 bonds result in a Young's modulus close to that of diamond, while the relatively weak van der Waals interaction between the graphitic shells acts as a form of lubrication. Previous characterization of the mechanical properties of nanotubes includes a rich variety of experi...