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Displaying 2176 - 2200 of 3842
Kristan L. Corwin, I Thomann, A Bartels, Tasshi Dennis, W. Fox, William C. Swann, E. A. Curtis, C. W. Oates, G Wilpers, Sarah L. Gilbert, Leo W. Hollberg, Nathan R. Newbury, Scott A. Diddams, Jeffrey W. Nicholson, M. Yan
… frequency standard based on neutral calcium and to a hydrogen maser that is calibrated by a cesium atomic fountain …
Concepcion Remoroza, Meghan Burke Harris, Tytus Mak, Sergey Sheetlin, Yuri Mirokhin, Zachary Goecker, Brian T. Cooper, Mark Lowenthal, Xiaoyu (Sara) Yang, Guanghui Wang, Dmitrii V. Tchekhovskoi, Stephen E. Stein
… investigated to examine the effects of charge state on ion abundances. These revealed a linear dependence of …
W H. Awad, Jeffrey W. Gilman, Marc R. Nyden, Richard H. Harris Jr., T E. Sutto, J H. Callahan, Paul C. Trulove, H X. DeLong
… The effect of different parameters such as: counter ion, alkyl chain length and structural isomerism on the … imidazolium treated montmorillonite clays were prepared by ion exchange of the imidazolium salts with … montmorillonite. Results indicate that the counter ion has an effect on the thermal stability of the imidazolium …
Kelly H. Telu, Xinjian Yan, William E. Wallace, Stephen Stein, Yamil Simon
… Most differences were associated with the interface (ion source) and not with the chromatographic behavior (LC) of … platform, where relative standard deviations of relative ion abundances are commonly less than 1 % for the main …
Fan Zhang, Andrew Allen, Lyle E. Levine, Mark D. Vaudin, Drago Skrtic, Joseph M. Antonucci, Kathleen Hoffman, Anthony A. Giuseppetti, Jan Ilavsky
Amorphous calcium phosphate (ACP) based composites are promising restorative dental materials attributable to ACP's capacity to release calcium and phosphate ions through a complex reaction in which ACP is converted to its crystalline, apatitic form
… Recently, dynamic secondary ion mass spectrometry (D-SIMS) is being used to analyze ions … systems, have problems with detector saturation. Thus, the ion intensities of SIMS must be corrected in their high …
J Z. Zhang, D S. Harper, S Zhou, Gerald L. Vogel, Gary E. Schumacher
… antiseptic mouthrinses, with or without 100-ppm fluoride ion, on the plaque metabolic acid production and plaque pH … (EO), (2) essential oil mouthrinse plus 100-ppm fluoride ion (EOF), or 3) negative control for 30 seconds, twice daily …