Now showing items 33521-33540 of 58305

(1851)

(1851)

(1851)

(1851)
• #### Photo- Appreciation Banquet for Principal Arthur M. Gaines Jr. ﻿

(1966-05-24)
• #### Photoabsorption by Ultracold Atoms and the Scattering Length ﻿

(1995)
It is shown that photoabsorption in a gas of ultracold atoms depends on the sign and magnitude of the scattering length in the scattering of a pair of atoms. Measurements of fluorescence in 7Li are interpreted to show that ...
• #### Photoassociation in a quantum degenerate gas of lithium-7 ﻿

(2005)
An experiment studying the effects of photoassociation in a quantum degenerate gas of 7Li bosons has been performed in a permanent magnet trap. A saturation in the one-photon photoassociation rate and a shift in the resonance ...
• #### Photoassociation of a Bose-Einstein Condensate near a Feshbach Resonance ﻿

(2008)
We measure the effect of a magnetic Feshbach resonance (FR) on the rate and light-induced frequency shift of a photoassociation resonance in ultracold Li7. The photoassociation-induced loss-rate coefficient Kp depends ...
• #### Photoassociative frequency shift in a quantum degenerate gas ﻿

(2001)
A light-induced frequency shift is observed in single-photon photoassociative spectra of magnetically trapped, quantum degenerate 7Li. The shift is a manifestation of the coupling between the threshold continuum scattering ...
• #### Photoassociative Spectroscopy at Long Range in Ultracold Strontium ﻿

(2005-03-03)
• #### Photoassociative spectroscopy of collisions between ultracold lithium atoms ﻿

(1996)
The spectra of the high-lying vibrational levels of the $A\sp1\Sigma\sbsp{u}{+}$ and $1\sp3\Sigma\sbsp{g}{+}$ singly excited states of both $\sp6\rm Li\sb2$ and $\sp7\rm Li\sb2$ are obtained via photoassociation of colliding ...
• #### Photoassociative spectroscopy of ultracold lithium(2)-7 and lithium(2)-6 ﻿

(1995)
We have obtained high-lying vibrational spectra for the $\rm 1\sp3\Sigma\sbsp{g}{+}$ and $\rm 1\sp1\Sigma\sbsp{u}{+}$ excited states of both $\rm \sp7Li\sb2$ and $\rm \sp6Li\sb2$ via photoassociation of colliding ultracold ...
• #### Photobleaching Lifetimes of Cyanine Fluorophores Used for Single Molecule Förster Resonance Energy Transfer in the Presence of Various Photoprotection Systems ﻿

(2013)
We investigated various photoprotection system combinations to find the combination that optimally extended the photobleach lifetime of a Cy3/Cy5 smFRET pair attached to a DNA hairpin in a single-molecule environment. We ...
• #### Photocatalytic destruction of some transition metal cyanide complexes ﻿

(1996)
The oxidation of several transition metal cyanides by illuminated colloidal titanium dioxide has been studied with attention to end products and rate of reaction. Tetracyanozinc, a weak complex, and ferricyanide, a stable ...
• #### Photochemical studies of single-walled carbon nanotube ozonides and alpha-azoxy ketones ﻿

(2007)
This thesis contributes to two disparate problems in chemistry: studying properties of carbon nanotube ozonides and products of their decomposition and determining behavior of alpha-azoxy radicals. This work demonstrates ...
• #### Photochemistry and environmental applications of water-soluble fullerene compounds ﻿

(2005)
The use of water-soluble fullerene-based compounds as sensitizers for reactive oxygen species (ROS) was investigated for the photodegradation of organic contaminants. A variety of conditions were evaluated to determine the ...
• #### Photocopy of handwritten letter from William Ward Watkin to Mr. Nolan E. Barrick, March 31, 1938 ﻿

(1938-03-31)
• #### Photocopy of letter from James H. Chillman to William Ward Watkin, dated July 19, 1919 ﻿

(1919-07-19)
• #### Photocopy of letter from William Ward Watkin to Honorable Albert Thomas, January 18, 1939 ﻿

(1939-01-18)
• #### Photocrosslinking of diethyl fumarate/poly(propylene fumarate) biomaterials ﻿

(2004-06-22)
A polymer network formed by crosslinking poly(propylene fumarate) with a fumarate derivative. The fumarate derivative is one in which the PPF is soluble, is preferably an alkyl fumarate, and is more preferably selected ...