Kristina Douglas

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The wealth of information existing on the general principle of S-layers has revealed a broad application potential. The most relevant features exploited in applied S-layer research are: (i) pores passing through S-layers show identical size and morphology and are in the range of ultrafiltration membranes; (ii) functional groups on the surface and in the(More)
We have examined the structure of S-layers isolated from Sulfolobus acidocaldarius using atomic force microscopy (AFM) and transmission electron microscopy (TEM). From the AFM images, we were able to directly observe individual dimers of the crystal, defects in the crystal structure, and twin boundaries. We have identified two types of boundaries, one(More)
Electrodeposition has been employed to produce crystalline silicon layers 5–50 μm thick on heavily doped p-type (111) Czochralski Si and polished silver. Growth was also demonstrated for the first time on metallurgicalgrade Si. A 50/50 mixture of KF and LiF was used as the solvent and K2SiF6 was the solute. The chemicals were used as received and were only(More)
Atomic force microscopy has been used to measure the surface profile of a periodic array of 10-nanometer (nm)-diameter holes fabricated by fast-atom beam milling of a smooth graphite surface in which a 3.5-nm-thick titanium oxide screen was used as a mask. The nanostructured titanium oxide mask was itself derived from a protein crystal template. Pattern(More)
The Fan Region is one of the dominant features in the polarized radio sky, long thought to be a local (distance . 500 pc) synchrotron feature. We present 1.3 − 1.8 GHz polarized radio continuum observations of the region from the Global Magneto-Ionic Medium Survey (GMIMS) and compare them to maps of Hα and polarized radio continuum intensity from 0.408 −(More)
Remote-controlled aerial drones (or unmanned aerial vehicles; UAVs) are employed for surveillance by the military and police, which suggests that drone-captured footage might provide sufficient information for person identification. This study demonstrates that person identification from drone-captured images is poor when targets are unfamiliar (Experiment(More)
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