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51.
Claudia Dell’Era Petri Uusi-Kyyny Juha-Pekka PokkiMinna Pakkanen Ville Alopaeus 《Fluid Phase Equilibria》2010
The solubility of carbon dioxide in aqueous solutions of alkanolamines was measured by means of two experimental methods. The solubility of carbon dioxide was measured at 298 K with a static total pressure apparatus in solutions of water + diisopropanolamine (DIPA) having mass fraction of DIPA equal to 10.1%, 11.0% and 33.9%. The density of the water + DIPA solution was measured continuously during the experiments to investigate the changes in density introduced by the absorption of carbon dioxide. A correlation for the density of CO2-loaded aqueous solutions of DIPA is presented. 相似文献
52.
Self-Adaptive Genetic Algorithm for Clustering 总被引:6,自引:0,他引:6
Clustering is a hard combinatorial problem which has many applications in science and practice. Genetic algorithms (GAs) have turned out to be very effective in solving the clustering problem. However, GAs have many parameters, the optimal selection of which depends on the problem instance. We introduce a new self-adaptive GA that finds the parameter setup on-line during the execution of the algorithm. In this way, the algorithm is able to find the most suitable combination of the available components. The method is robust and achieves results comparable to or better than a carefully fine-tuned non-adaptive GA. 相似文献
53.
54.
Auerbach H. Friedenthal J. Ville E. Derrien A. Herrmann V. Ducceschi E. Buchner Sigward Mitscherlich M. Bial P. Mayer Brat E. C. van Leersum B. Reinbold O. Amrein J. Ostori E. Riegler H. L. Visser Jos Bilinski H. Held A. Berg Rud Ofner C. Neuberg O. Wentzki O. Folin und H. Bellocq 《Fresenius' Journal of Analytical Chemistry》1905,44(6-7):455-459
Ohne Zusammenfassung 相似文献
55.
56.
We study how measures with finite lower density are distributed around (n−m)-planes in small balls in Rn. We also discuss relations between conical upper density theorems and porosity. Our results may be applied to a large collection of Hausdorff and packing type measures. 相似文献
57.
Ville Merilä 《Results in Mathematics》2009,53(1-2):129-151
58.
Alan R. Katritzky Bushra Agha George Z. de Ville Edward Lunt Michael L. Podmore 《Magnetic resonance in chemistry : MRC》1983,21(11):649-656
13C and 1H NMR spectra and UV spectra are recorded and assigned for a variety of substituted and hetero derivatives of benzo[8,9]quinolizino[4,5,6,7-fed]phenanthrindyliums. Large specific effects of traces of water on these spectra are traced to pseudo-base formation. 相似文献
59.
Alan R. Katritzky George de Ville Ranjan C. Patel Richard Harlow 《Tetrahedron letters》1982,23(12):1241-1242
1-Aryl-2-(2′-benzimidazolyl)-4,6-diphenyl-pyridiniums are converted photochemically into 2-[2′-(1′-arylbenzimidazolyl)]-4,6-diphenylpyridines. X-Ray crystal analysis comfirms the structure for the -chlorophenyl derivative. 相似文献
60.
Majdi Abid Hassen Trabelsi Mohamed Taktak Jérôme Antoni Jean Michel Ville Tahar Fakhfakh Mohamed Haddar 《Applied Acoustics》2012,73(10):1022-1028
The current techniques for monitoring and diagnostics of rotating machines to their conditional predictive maintenance mainly are based on vibration monitoring. In this research, experimental and theoretical methods to predict the tonal noise of a faulty fan are developed and validated. These methods can be used on identifying defects of an axial fan based on an acoustic monitoring in situations where it is necessary to operate remotely due to the inaccessibility of the areas of event defects. 相似文献