180,643 research outputs found
Capt. Nicholas J. Busch USMCR in front of Headquarters of Camp French Creek
No full textCapt. Nicholas J. Busch USMCR in front of Headquarters of Camp French Creek, F-109, C-2939, 1939 or 1940.F-109C-293
In welcher Sprache schweigen die Gedichte der Nelly Sachs?
No full textIl contributo analizza le funzioni del silenzio all'interno della lirica di Nelly Sachs riferendosi a parametri della riflessione filosofico-linguistica
Dal Corso Romano alla Prospettiva Nevskij: la strada come campo di forze deformanti e trasformanti nell'opera di Hoffmann e Gogol'
No full textBusch Gardens Tampa, C
No full textA view of Busch Gardens, in Tampa, Florida.https://digitalcommons.usf.edu/dunn_postcards/3869/thumbnail.jp
Chain-length dependence of free-radical termination rate deduced from laser single-pulse experiments
No full textTermination rate coefficients of free-radical polymerization are accessible from SP-PLP studies where monomer conversion induced by a laser single pulse is measured with a time resolution of microseconds. Previous experiments with 2,2-dimethoxy-2-phenylacetophenone (DMPA) acting as the initiator revealed that upon variation of the DMPA concentration, the resulting monomer conversion vs. time traces intersect. A detailed kinetic analysis of this unexpected type of behavior is presented. It turns out that such crossings occur in situations Where k(t) is chain-length dependent and, at the same time. the primary initiator-derived free-radical species differ in reactivity toward the monomer. As is known from the literature, this difference in radical reactivity is particularly pronounced with DMPA, which photo-decomposes to a propagating and to a non-propagating free radical. Modeling of the crossing behavior opens a novel route for determining chain-length dependent k(t). Results for methyl acrylate (MA) and styrene homopolymerizations at low degrees of monomer conversion, to a maximum of are presented. The decrease of k(t) with chain length is modeled via an exponential function. The dependence is significantly larger for styrene. The exponents derived from simulation studies via PREDICI® are in excellent agreement with corresponding data reported by Olaj et al. for styrene and by de Kock for methyl acrylate
Delirium - Bild - Metapher: Von Charles Blondels "conscience morbide" zu Gottfried Benns "Ausdruckwelt". Ein Beitrag zur Poetik des Expressionismus.
No full textIl contributo mette in evidenza come la psicologia francese di Charles Blondel riesca a spiegare tratti specifici della lirica espressionista di Gottfried Benns
Long-chain and short-chain branches in ethene-methyl acrylate copolymers studied by quantitative C-13 NMR spectroscopy
No full textThe frequency of long-chain branches (LCBs) in ethene (E)-methyl acrylate (MA) copolymers is investigated for material that was synthesized at 150 degrees C and 2,000 bar at different levels of conversion but constant copolymer composition. The copolymers exhibit significantly more LCBs than found in LDPE synthesized under similar conditions. Moreover, it is found that the LCB frequency increases with conversion. At 0.3 mol-% conversion 0.3 LCBs and a 4.0 mol-% conversion 1.1 LCBs per 1,000 C atoms are observed. In addition, the frequency of short-chain branches (SCBs) in the copolymers is investigated. About 9 mol-% of the acrylate units are alkylated, which corresponds to numbers given in literature. As sensors, both LCB and SCB indices provide valuable information for simulation calculations to determine rate coefficients for inter- and intramolecular transfer reactions
Long-chain and short-chain branches in ethene-methyl acrylate copolymers studied by quantitative C-13 NMR spectroscopy
No full textThe frequency of long-chain branches (LCBs) in ethene (E)-methyl acrylate (MA) copolymers is investigated for material that was synthesized at 150 degrees C and 2,000 bar at different levels of conversion but constant copolymer composition. The copolymers exhibit significantly more LCBs than found in LDPE synthesized under similar conditions. Moreover, it is found that the LCB frequency increases with conversion. At 0.3 mol-% conversion 0.3 LCBs and a 4.0 mol-% conversion 1.1 LCBs per 1,000 C atoms are observed. In addition, the frequency of short-chain branches (SCBs) in the copolymers is investigated. About 9 mol-% of the acrylate units are alkylated, which corresponds to numbers given in literature. As sensors, both LCB and SCB indices provide valuable information for simulation calculations to determine rate coefficients for inter- and intramolecular transfer reactions
Swiss House at Busch Gardens, C
No full textThe Swiss House at Busch Gardens. Stairs leading up to the building.https://digitalcommons.usf.edu/gandy_commercial/2654/thumbnail.jp
Busch Gardens Monorail Station, C
No full textA monorail station at Busch Gardens, featuring a modern structure with stone columns and palm trees around the entrance. The monorail can be seen approaching on elevated tracks in the background, while a group of visitors stand nearby, enjoying the scenery.https://digitalcommons.usf.edu/gandy_street/1923/thumbnail.jp
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