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71.
72.
Gunnar Myhre Frode Stordal Ingvil Gausemel Emanuel Mahieu 《Journal of Quantitative Spectroscopy & Radiative Transfer》2006,97(3):317-331
We estimate a current direct radiative forcing due to CFC-12 of 0.18 Wm-2, which is likely to be the peak radiative forcing for CFC-12. Global measurements of CFC-12 show at present an almost negligible trend for CFC-12 and measurement in an industrialized region show evidence that the peak concentration is reached. It is expected that concentration of CFC-12 in industrialized regions begins to decline 1-3 years before the global concentration.Our radiative forcing calculations are based on a line-by-line model appropriate for simulation of global mean radiative forcing, including clouds and stratospheric temperature adjustment. The radiative forcing of 0.33 Wm-2/ppbv is close to earlier published results for this compound. New spectroscopic measurements for CFC-12 are performed and compared to previously published results. 相似文献
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Anders Hallberg Arnold R. Martin Gary E. Martin Gunnar Grönberg 《Journal of heterocyclic chemistry》1984,21(6):1893-1895
13C-nmr chemical shift assignments for 5H-Indolo[1,7-ab][1]benzazepine and 6,7-Dihydro-5H-indolo-[1,7-ab][1]benzazepine, made on the basis of two-dimensional 1H-13C chemical shift correlation experiments are reported. 相似文献
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77.
Andreas Rudolf Mats Galbe Gunnar Lidén 《Applied biochemistry and biotechnology》2004,114(1-3):601-617
Inhibitors formed during wood hydrolysis constitute a major problem in fermenting dilute-acid hydrolysates. By applying a
fed-batch technique, the levels of inhibitory compounds may be held low, enabling high ethanol productivity. In this study,
a previously developed fed-batch strategy was modified and implemented for use in pilot development unit (PDU) scale. The
rate of total gas formation, measured with a mass flow meter, was used as input variable in the control algorithm. The feed
rate in the PDU-scale experiments could be properly controlled based on the gas evolution from the reactor. In fed-batch experiments
utilizing TMB 3000, an inhibitor-tolerant strain of Saccharomyces cerevisiae, close to 100% of the hexoses in the hydrolysate was converted. 相似文献
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79.
The shallow water wave equation is derived in a general deforming co-ordinate system. A weak form is developed which displays the natural boundary condition prominently and which may be implemented on C0 elements. A time-stepping algorithm is implemented with clastic mapping of interior node motion. Lossless test cases show agreement with analytic solutions. A simple hypothetical test case shows intuitively good behaviour at length scales approaching those required of estuarine simulations. 相似文献
80.