排序方式: 共有36条查询结果,搜索用时 15 毫秒
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Aloys Krieg 《Results in Mathematics》1998,34(3-4):342-358
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Zeitschrift für Physik A Hadrons and nuclei - 相似文献
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Aloys Krieg 《Results in Mathematics》1994,25(3-4):339-340
In this paper we give an elementary proof on the range of convergence of Epstein zeta functions. 相似文献
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Aloys Krieg 《manuscripta mathematica》1990,66(1):431-451
In this paper we demonstrate the meromorphic continuation and functional equation for Koecher-Maaß-series attached to modular forms of quaternions. The Koecher-Maaß-series associated with modular forms in the Maaß space, which are simultaneous eigenforms under all Hecke operators, possess Euler product expansions. 相似文献
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Oleg Milstein Rolf Gersonde Aloys Huttermann Meng-Jiu Chen John J. Meister 《高分子科学杂志,A辑:纯化学与应用化学》2013,50(5):685-702
Abstract White rot Basidiomycetes were able to biodegrade styrene (1-phenylethene) or methyl methacrylate (4-methyl-2-oxy-3-oxopent-4-ene) graft copolymers of lignin containing different proportions of lignin and polystyrene [poly(1-phenylethylene)] or polymethyl methacrylate [poly(1-methyl-1-(1-oxo-2-oxypropyl)ethylene)]. The biodegradation tests were run on lignin/styrene copolymerization products which contained 10.3, 32.2, and 50.4 wt% lignin while biodegradation tests were run on lignin/methyl methacrylate copolymerization products which contained 11 to 18 wt% lignin. The styrene polymer samples were incubated with white rot Pleurotus ostreatus, Phanerochaete chrysosporium, Trametes versicolor, and brown rot Gloeophyllum trabeum. The methyl methacrylate polymer samples were incubated with white rot Pleurotus ostreatus, Trametes versicolor, and Phlebia radiata. White rot fungi degraded the plastic samples at a rate which increased with increasing lignin content in the copolymer sample. Both polystyrene and lignin components of the copolymer were readily degraded. Polystyrene pellets and polymethyl methacrylate sheets were not degradable in these tests. Degradation was verified by weight loss, quantitative ultraviolet spectrophotometric analysis of both lignin and styrene residue, and scanning electron microscopy of the plastic surface for both incubated or control samples. Brown rot fungus did not affect any of these plastics. 相似文献