Microcrystal alignment in drawn fiber over sub-meter to kilometer length scales

Sub-kilometer length scales in coastal waters

Patchiness or spatial variability is ubiquitous in marine systems. With increasing anthropogenic impacts to coastal resources and coastal systems being disproportionately large contributors to ocean productivity, identifying the spatial scales of this patchiness, particularly in coastal waters, is of critical importance to understand coastal ecosystem dynamics. The current work focuses on fine ...

Daily to Yearly Variations in Rip Current Activity over Kilometer Scales

Measuring temperature gradients over nanometer length scales.

When a quantum dot is subjected to a thermal gradient, the temperature of electrons entering the dot can be determined from the dot's thermocurrent if the conductance spectrum and background temperature are known. We demonstrate this technique by measuring the temperature difference across a 15 nm quantum dot embedded in a nanowire. This technique can be used when the dot's energy states are se...

Mechanical Behavior of Osteoporotic Bone at Sub-Lamellar Length Scales

*Correspondence: Asa H. Barber , School of Engineering, University of Portsmouth, Portsmouth PO1 2UP, UK e-mail: [email protected] Osteoporosis is a disease known to promote bone fragility but the effect on the mechanical properties of bone material, which is independent of geometric effects, is particularly unclear. To address this problem, micro-beams of osteoporotic bone were prepared us...

Control in the Sciences Over Vast Length and Time Scales

The desire to direct the outcome of chemical, physical and biological processes is pervasive in many areas of science. A set of protocols, rules and procedures is often followed in each domain frequently resulting in very favorable outcomes. These operations can be expressed in a control framework analogous to common practice in the engineering disciplines. As a foundation for assessing the val...