7 Works

Atomic line vs. lens cavity filters: A comparison of their merits [Dataset]

Clare Higgins
We present a comparison between lens cavity filters and atomic line filters, discussing their relative merits for applications in quantum optics. We describe the design, characterization and stabilization procedure of a lens cavity filter, which consists of a high-reflection coated commercially available plano-convex lens, and compare it to an ultra-narrow atomic band-pass filter utilizing the D2 absorption line in atomic rubidium vapor. We find that the cavity filter peak transmission frequency and bandwidth can be...

Are ultracold molecular collisions sticky? [dataset]

Philip David Gregory & Matthew Frye
Understanding and controlling collisions is crucial to the burgeoning field of ultracold molecules. All experiments so far have observed fast loss of molecules from the trap. However, the dominant mechanism for collisional loss is not well understood when there are no allowed 2-body loss processes. Here we experimentally investigate collisional losses of nonreactive ultracold RbCs molecules, and compare our findings with the sticky collision hypothesis that pairs of molecules form long-lived collision complexes. We demonstrate...

Resolving Alternative Organic Crystal Structures using Density Functional Theory and NMR Chemical Shifts [dataset]

Cory Widdifield
Alternative (‘repeat’) determinations of organic crystal structures deposited in the Cambridge Structural Database are analysed to characterise the nature and magnitude of the differences between structure solutions obtained by diffraction methods. Of the >3000 structure pairs considered, over 20% exhibited local structural differences exceeding 0.25 Å. In most cases (about 83%), structural optimisation using density functional theory (DFT) resolved the differences. Many of the cases where distinct and chemically significant structural differences remained after optimisation...

Fracture attribute scaling and connectivity in the Devonian Orcadian Basin with implications for geologically equivalent sub-surface fractured reservoirs [dataset]

Anna M. Dichiarante
Fracture attribute scaling and connectivity datasets from analogue systems are widely used to inform sub-surface fractured reservoir models in a range of geological settings. However, significant uncertainties are associated with the determination of reliable scaling parameters in surface exposures, particularly for fault widths and fracture aperture. This has limited our ability to upscale key parameters that control fluid-flow at reservoir to basin scales. In this study, we present nine 1D‑transect (scanline) fault and fracture attribute...

Through the eyes of a wolf: Using non-invasive methods to quantify and classify the facial signalling of wolves (Canis lupus) and domestic dogs (Canis lupus familiaris) [video]

Elana Rosemary Hobkirk
These videos form appendices B, C and D of the following thesis: Hobkirk, Elana, Rosemary (2019). Through the eyes of a wolf: Using non-invasive methods to quantify and classify the facial signalling of wolves (Canis lupus) and domestic dogs (Canis lupus familiaris). Masters thesis, Durham University, UK.

The impact of disruptive powertrain technologies on energy consumption and carbon dioxide emissions from heavy-duty vehicles [dataset]

Andrew John Smallbone
This data underpins the article: The impact of disruptive powertrain technologies on energy consumption and carbon dioxide emissions from heavy-duty vehicles DOI information: 10.1016/j.ecmx.2020.100030 It is the outputs from the model which has been published and described in the article.

Generator Rotor Electrical Asymmetry Test Rig Experiments [dataset]

Donatella Zappalá
This paper presents a simplified automated fault detection scheme for wind turbine induction generators with rotor electrical asymmetries. Fault indicators developed in previous works have made use of the presence of significant spectral peaks in the upper sidebands of the supply frequency harmonics; however, the specific location of these peaks may shift depending on the wind turbine speed. As wind turbines tend to operate under variable speed conditions, it may be difficult to predict where...

Registration Year

  • 2020
    7

Resource Types

  • Dataset
    6
  • Audiovisual
    1