Search Results - "Tjoelker, R"

Demonstration of a trapped-ion atomic clock in space by Burt, E. A., Prestage, J. D., Tjoelker, R. L., Enzer, D. G., Kuang, D., Murphy, D. W., Robison, D. E., Seubert, J. M., Wang, R. T., Ely, T. A.

“…Atomic clocks, which lock the frequency of an oscillator to the extremely stable quantized energy levels of atoms, are essential for navigation applications…”
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Drone-Based Ground-Penetrating Radar with Manual Transects for Improved Field Surveys of Buried Ice by Tjoelker, Adam R., Baraër, Michel, Valence, Eole, Charonnat, Bastien, Masse-Dufresne, Janie, Mark, Bryan G., McKenzie, Jeffrey M.

“…The steep and unstable terrain found on debris-covered glaciers, rock glaciers, talus slopes, moraines and other proglacial features often make terrestrial…”
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High frequency of yeast carriage on hands of hospital personnel by STRAUSBAUGH, L. J, SEWELL, D. L, WARD, T. T, PFALLER, M. A, HEITZMAN, T, TJOELKER, R

“…Article Usage Stats Services JCM Citing Articles Google Scholar PubMed Related Content Social Bookmarking CiteULike Delicious Digg Facebook Google+ Mendeley…”
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Norovirus Outbreak Management Applied to Pandemic Influenza Planning by Atherton, S., MS, RN, CNS, CIC, Tjoelker, R., MS, RN, CNS, CIC, Barker, T

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Cooling and slowing of trapped antiprotons below 100 MeV by GABRIELSE, G, FEI, X, OROZCO, L. A, TJOELKER, R. L, HAAS, J, KALINOWSKY, H, TRAINOR, T. A, KELLS, W

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Thousandfold improvement on the measured antiproton mass by GABRIELSE, G, FEI, X, OROZCO, L. A, TJOELKER, R. L, HAAS, J, KALINOWSKY, H, TRAINOR, T. A, KELLS, W

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First capture of antiprotons in a Penning trap: A kiloelectronvolt source by Gabrielse, G, Fei, X, Helmerson, K, Rolston, SL, Tjoelker, R, Trainor, TA, Kalinowsky, H, Haas, J, Kells, W

“…Antiprotons from the Low Energy Antiproton Ring of CERN are slowed down from 21 MeV to below 3 keV by being passed through 3 mm of material, mostly Be. While…”
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Stable Photonic Links for Frequency and Time Transfer in the Deep-Space Network and Antenna Arrays by Calhoun, Malcolm, Huang, Shouhua, Tjoelker, Robert L.

“…For more than two decades, NASA deep space network (DSN) frequency and timing metrology has been a driving application for remote transfer of stable…”
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Comparison of three methods for recovery of yeasts from hands of health-care workers by Strausbaugh, L J, Sewell, D L, Tjoelker, R C, Heitzman, T, Webster, T, Ward, T T, Pfaller, M A

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High Q Miniature Sapphire Acoustic Resonator by Wang, Rabi T, Tjoelker, R L

“…We have demonstrated high Q measurements in a room temperature Miniature Sapphire Acoustic Resonator (MSAR). Initial measurements of bulk acoustic modes in…”
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Ultra-stable Hg(+) trapped ion frequency standard by Prestage, J. D., Tjoelker, R. L., Dick, G. J., Maleki, L.

“…We report the development of a fieldable frequency standard based on Hg-199(+) ions confined in a hybrid r.f./dc linear ion trap. This trap permits storage of…”
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First high-resolution spectroscopy of 201Hg+ hyperfine structure: a sensitive probe of nuclear structure and the hyperfine anomaly by Burt, E. A, Taghavi-Larigani, S, Tjoelker, R. L

“…Using 201Hg+ contained within a linear quadrupole rf ion trap that is part of an atomic clock, we report the first high-resolution spectroscopy on the…”
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Hg+ trapped ion standard with the superconducting cavity maser oscillator by PRESTAGE, J. D, TJOELKER, R. L, WANG, R. T, DICK, G. J, MALEKI, L

“…The frequency stability of an atomic standard based on (Hg-199)(+) ions confined in a hybrid RF/dc linear trap is described. The 40.5 GHz clock transition has…”
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A compensated multi-pole linear ion trap mercury frequency standard for ultra-stable timekeeping by Burt, E.A., Diener, W.A., Tjoelker, R.L.

“…The multi-pole linear ion trap frequency standard (LITS) being developed at the Jet Propulsion Laboratory (JPL) has demonstrated excellent short- and long-term…”
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Staff hand hygiene monitors: How do you get them done? by Tjoelker, R., Atherton, S., Strausbaugh, L.

“…ISSUE: The Centers for Disease Control and Prevention (CDC) Guideline for Hand Hygiene in Health Care Settings recommends monitoring adherence to hand hygiene…”
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Antibiotic resistance: nursing implications for the '90s by Tjoelker, R, Atherton, S

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High-resolution spectroscopy of H 201 g + hyperfine structure: A sensitive probe of nuclear structure and the hyperfine anomaly by Burt, E. A., Taghavi-Larigani, S., Tjoelker, R. L.

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First Capture of Antiprotons in an Ion Trap: Progress Toward a Precision Mass Measurement and Antihydrogen by Gabrielse, G, Fei, X, Haarsma, L, Rolston, S L, Tjoelker, R, Trainor, T A, Kalinowsky, H, Haas, J, Kells, W

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Nosocomial enterococcal blood stream infections in the SCOPE program: Antimicrobial resistance, species occurrence, molecular testing results, and laboratory testing accuracy by Jones, Ronald N., Marshall, Steven A., Pfaller, Michael A., Wilke, Werner W., Hollis, Richard J., Erwin, Meridith E., Edmond, Michael B., Wenzel, Richard P.

“…Characteristics of nosocomial enterococcal blood stream infection (NEBSI) isolates obtained from patients at 41 U.S. hospitals participating in the SCOPE…”
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Stability measurements between Hg+ lite 12-pole clocks by PRESTAGE, J. D, CHUNG, S, BURT, E, MALEKI, L, TJOELKER, R. L

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