Zobrazeno 1 - 10
of 47
pro vyhledávání: '"L. K. Christensen"'
Autor:
R. Belford, L. K. Christensen, T. R. Clarke, Victor O. Sadras, Glenn J. Fitzgerald, Daniel Rodriguez
Publikováno v:
Precision Agriculture. 7:233-248
Variable-rate technologies and site-specific crop nutrient management require real-time spatial information about the potential for response to in-season crop management interventions. Thermal and spectral properties of canopies can provide relevant
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::01678e6502b66c395773009e1226040d
https://doi.org/10.1007/s11119-006-9011-z
https://doi.org/10.1007/s11119-006-9011-z
Publikováno v:
The Journal of Physical Chemistry A. 104:345-351
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b50792449432a31633a84c4ffe884c9
https://doi.org/10.1021/jp993127n
https://doi.org/10.1021/jp993127n
Publikováno v:
The Journal of Physical Chemistry A. 103:9805-9814
Absolute rate coefficients for reactions of Cl atoms with selectively deuterated ethanols have been measured between 295 and 600 K by a laser-photolysis/CW infrared absorption method. Yields of HCl are determined by comparison with the Cl + ethane or
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d8aa8f73494458b27e0561091852033d
https://doi.org/10.1021/jp992465l
https://doi.org/10.1021/jp992465l
Atmospheric Chemistry of Tetrachloroethene (Cl2CCCl2): Products of Chlorine Atom Initiated Oxidation
Autor:
Lars P. Thüner, K. H. Becker, Timothy J. Wallington, B. Ramacher, Ian Barnes, John J. Orlando, L. K. Christensen
Publikováno v:
The Journal of Physical Chemistry A. 103:8657-8663
The products following Cl atom initiated oxidation of C2Cl4 at 700−760 Torr of air and 230−299 K in the presence and absence of NOx were investigated using three different FTIR smog chamber techniques. There was no measurable effect of temperatur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bde59525869ea85920a4e55dd160e1c4
https://doi.org/10.1021/jp991929c
https://doi.org/10.1021/jp991929c
Autor:
T.N.N. Stein, Jens Sehested, Ole John Nielsen, L. K. Christensen, Timothy J. Wallington, J. Platz
Publikováno v:
The Journal of Physical Chemistry A. 103:5705-5713
Pulse radiolysis transient UV absorption spectroscopy was used to study the ultraviolet absorption spectra (230−330 nm) and kinetics of CF3C(O)OCH(·)CF3 and CF3C(O)OCH(OO·)CF3 radicals at 296 K. At 280 nm σ(CF3C(O)OCH(·)CF3) = (1.08 ± 0.13) ×
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::596ff3c3e83574a7e60b47077ee7eb2f
https://doi.org/10.1021/jp990599t
https://doi.org/10.1021/jp990599t
Publikováno v:
The Journal of Physical Chemistry A. 103:4202-4208
Recognition of the adverse effect of chlorofluorocarbon (CFC) release into the atmosphere has led to an international effort to replace CFCs with environmentally acceptable alternatives. Hydrofluoroethers (HFEs) are a class of compounds which have be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7fd0e9476b5768b4430210b4014a03c4
https://doi.org/10.1021/jp984455a
https://doi.org/10.1021/jp984455a
Autor:
A. Guschin, Michael D. Hurley, Timothy J. Wallington, Ole John Nielsen, L. K. Christensen, Jens Sehested
Publikováno v:
The Journal of Physical Chemistry A. 102:8913-8923
FTIR-smog chamber techniques were used to determine rate constants for the gas-phase reaction of Cl and F atoms with CH3C(O)C(O)CH3 and F atoms with CH3C(O)F of (4.0 ± 0.5) × 10-13, (4.9 ± 0.7) × 10-11, and (3.6 ± 0.4) × 10-12 cm3 molecule-1 s-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e6e1bb6d21eb356ed726e8fe70028c6c
https://doi.org/10.1021/jp982431y
https://doi.org/10.1021/jp982431y
Autor:
Timothy J. Wallington, Rainer Vogt, J. Platz, Jens Sehested, Ole John Nielsen, L. K. Christensen, C. G. Sauer, K. H. Becker, Ian Barnes
Publikováno v:
The Journal of Physical Chemistry A. 102:4829-4838
A pulse radiolysis technique was used to measure the UV absorption spectra of c-C3H5O3(•) and (c-C3H5O3)O2(•) radicals over the range 220−300 nm, with σ(c-C3H5O3(•))250 nm = (5.2 ± 0.7) × 10-18 and σ((c-C3H5O3)O2(•))250 nm = (3.7 ± 0.4
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::82c74685ffb25a6221bdba0d8b5e53ac
https://doi.org/10.1021/jp9809540
https://doi.org/10.1021/jp9809540
Autor:
Timothy J. Wallington, Ole John Nielsen, Jens Sehested, Merete Bilde, L. K. Christensen, A. Guschin, Luisa T. Molina, Mario J. Molina
Publikováno v:
The Journal of Physical Chemistry A. 102:4839-4845
Relative rate techniques were used to measure k(OH + n-C4F9OC2H5) = (6.4 ± 0.7) × 10-14 and k(OH + i-C4F9OC2H5) = (7.7 ± 0.8) × 10-14 cm3 molecule-1 s-1 at 295 K leading to estimates of ≈0.9 and 0.7 years for the atmospheric lifetimes of n-C4F9
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::63e5bbda00a629173ebd8356216af84f
https://doi.org/10.1021/jp981128u
https://doi.org/10.1021/jp981128u
Autor:
Ole John Nielsen, Timothy J. Wallington, John J. Orlando, L. K. Christensen, Jens Sehested, Trine E. Møgelberg, Geoffrey S. Tyndall
Publikováno v:
The Journal of Physical Chemistry A. 102:1779-1789
A pulse-radiolysis system was used to measure absolute rate constants for the reactions of CH3C(O)O2 radicals with NO and NO2 at 295 K and 1000 mbar total pressure of SF6. When the rate of formation and decay of NO2 using its absorption at 400.5 and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a67855f11c24125ec323f0023ef58a13
https://doi.org/10.1021/jp972881a
https://doi.org/10.1021/jp972881a