Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Troy A. Alexander"'
Autor:
Kate Nelson, David Brumley, Christine Jasmin, Franz A. Carranza, Cassandra L. Quave, Troy S. Alexander, Serge Lavoie, Julia Kubanek
Publikováno v:
The Journal of organic chemistry. 82(8)
Unique iodine-containing meroditerpenes io-docallophycoic acid A (1) and iodocallophycols A–D (2–5) were discovered from the Fijian red alga Callophycus sp. Because flexibility of the molecular skeleton impaired full characterization of relative
Autor:
May D. Wang, Tiffany D. Andras, Mark E. Hay, Facundo M. Fernández, Troy S. Alexander, Asiri Gahlena, R. Mitchell Parry, Julia Kubanek
Publikováno v:
Journal of Chemical Ecology. 38:1203-1214
Coral reefs are in global decline, with seaweeds increasing as corals decrease. Although seaweeds inhibit coral growth, recruitment, and survivorship, the mechanism of these interactions is poorly understood. Here, we used field experiments to show t
Autor:
William G.L. Aalbersberg, Troy S. Alexander, Mark E. Hay, Manuel Torres, Sebastian Engel, Jacques Prudhomme, Tonya L. Shearer, Julia Kubanek, Karine G. Le Roch, Craig R. Fairchild, Margaret E. Teasdale
Publikováno v:
The Journal of Organic Chemistry. 77:8000-8006
Bioassay-guided fractionation of extracts from a Fijian red alga in the genus Callophycus resulted in the isolation of five new compounds of the diterpene-benzoate class. Bromophycoic acids A-E (1-5) were characterized by NMR and mass spectroscopic a
Autor:
Troy A. Alexander
Publikováno v:
Analytical Chemistry. 80:2817-2825
Surface-enhanced Raman spectroscopy (SERS) can be made an attractive approach for identification of Raman-active compounds and biological materials (i.e., toxins, viruses, or intact bacterial cells/spores) through development of reproducible, spatial
Autor:
David Yt.. Chiu, Troy A. Alexander
This report describes the design, operation, and performance of a line scan imaging system using a one-dimensional (1-D) 256 indium gallium arsenide (InGaAs) photodiode linear array sensor that operates in the short wave infrared (SWIR) (0.8 1.7um) r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a50601e80456b4590e13bfd87a28ec50
https://doi.org/10.21236/ada549860
https://doi.org/10.21236/ada549860
Autor:
Laurel Sadler, Troy A. Alexander
Publikováno v:
SPIE Proceedings.
There exists a current need to rapidly and accurately identify the presence and location of optical imaging devices used in counter-surveillance activities against U. S. troops deployed abroad. The locations of devices employed in counter-surveillanc
Publikováno v:
SPIE Proceedings.
The Long Wave Infrared (LWIR) Profile Feature Extractor (PFx) sensor has evolved from the initial profiling sensor that was developed by the University of Memphis (Near IR) and the Army Research Laboratory (visible). This paper presents the initial s
Autor:
A. Lunev, Meredith Reed, Grace D. Metcalfe, Gregory A. Garrett, Maxim S. Shatalov, Troy A. Alexander, J. Deng, Michael Wraback, Hongen Shen, Xuhong Hu, A. Sattu, Yuriy Bilenko, Craig Moe, Remis Gaska
Publikováno v:
2009 IEEE International Reliability Physics Symposium.
Lifetime measurements on single, packaged UV LEDs were performed under constant current injection at 20 and 75 mA (60 and 226 A/cm2). The junction temperature at operation was found by micro-Raman spectroscopy to be 57 and 184 °C, respectively. Unbi
Publikováno v:
SPIE Proceedings.
The optical performance of an infrared sparse sensor detector system is modeled. Such a system, due to its low cost, uses single element, spherical, off-the-shelf optical components that may produce poor quality off-axis images. Since sensors will no
Autor:
Troy A. Alexander
Publikováno v:
Smart Medical and Biomedical Sensor Technology IV.
Surface-Enhanced-Raman-Spectroscopy (SERS) is potentially a very sensitive technique for the detection of biological agents (i.e., proteins, viruses or whole cell bacteria). However, since initial reports, its utility has not been realized. Its limit