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14篇 您的检索式:作者名="Graupner M"
    题名 作者 年代 出处 被引量
1Photogeneration and recombination processes of neutral and charged excitations in films of a ladder-type poly (para- phenylene)显示文摘WOHLGENANNT M GRAUPNER W LEISING G 1999Physical Review B1999,60,8:1
2How to describe polarization influence on imaging 显示文摘Totzeck M Graupner P Heil T 2005Proceedings of SPIE(S0277-786X)2005,5754,:1
3Remediating knowledge-making spaces in the graduate curriculum:Developing and sustaining multimodal teaching and research显示文摘Graupner M Nickoson-Massey L Blair K 2009Computers and Composition2009,26,1:1
4How to describe polarization influence on imaging显示文摘M Totzeck P Graupner 2005Optical Microlithography2005,5754,:1
5Prognostic model for longterm survival of locally advanced non-small-cell lung cancer patients after neoadjuvant radiochemotherapy and resection integrating clinical and histopathologic factors显示文摘Pottgen C Stuschke M Graupner B 2015BMC Cancer2015,15,1:1
6Natural and Man-made Cellulose Fibre-reinforced Poly (Lactic Acid) (PLA) Composites: Anoverview about Mechanical Character- istics and Application Areas显示文摘GRAUPNER N HERRMANN A S M SSIGB J 2009Composites : Part A2009,40,67:1
7Natural and man-made cellulose fibre-reinforced poly(lactic acid) (PLA) composites: An overview about mechanical characteristics and application areas显示文摘Nina Graupner Axel S. Herrmann J?rg Müssig 2009Composites Part A2009,,6:1
8Application of the Tisler Triazolopyrimidine Cyclization to the Synthesis of a Crop Protection Agent and an Intermediate 显示文摘Bell B M Fanwick P E Graupner P R 2006Organic Process Research & Development2006,10,6:1
9Trace element incorporation into quartz: A combined study by ICP-MS, electron spin resonance, cathodoluminescence, capillary ion analysis, and gas chromatography 显示文摘Gotze J Plotze M Graupner T Hallbauer D K Bray C J 2004Geochim Cosmochim Acta2004,68,18:1
10New class of IMP cyclohydrolases in Methanococcus jannaschii显示文摘Graupner M Xu H White R H 2002Journal of Bacteriology2002,184,5:1
11 cycloaddition for cross-linking SWCNTs显示文摘Holzinger M Steinmetz J Graupner R 2004Carbon2004,42,56:1
12Thyroid hormone receptors repress estrogen receptor activation of a TRE 显示文摘Graupner G Zhang X-K Tzukerman M 1991Mol Endocrinol1991,5,:1
13Potential of Thai Bast Fibers for Injection Molded PLA Composites显示文摘Thailand has a huge variability of bast fiber plants,some of which have been little researched regarding their applicability in composites.Bast fiber(bundle)s from different species were investigated and incorporated into a polylactide(PLA)matrix by injection molding.Hemp and kenaf were used as well-studied fibers,while roselle,Fryxell and paper mulberry are less extensively characterized.Tensile strength,tensile modulus and interfacial shear strength(IFSS)of single fiber(bundle)s were highest for hemp,followed by kenaf,roselle,Fryxell and paper mulberry.Despite the lower tensile strength and IFSS of paper mulberry,the highest tensile strength was achieved for the paper mulberry/PLA composite followed by hemp/PLA.Scanning electron microscope(SEM)analyses showed that the single cells in paper mulberry fiber bundles,in contrast to the other fiber types investigated,were only partially bonded to each other,which explains the lower strength of the fiber bundles.The higher aspect ratio of fiber(bundle)s of paper mulberry in the PLA composite can explain the good composite characteristics.Apart from hemp,paper mulberry shows the best reinforcing effect in the PLA matrix and offers interesting potential for composite applications.Compared to neat PLA,the tensile strength could be increased by 24%and the tensile modulus by 54%.Nina Graupner Thiprada Poonsawat Koranat Narkpiban Jörg Müssig 2023Journal of Renewable Materials2023,11,5:0
14Toddy Palm (Borassus Flabellifer) Fruit Fibre Bundles as Reinforcement in Polylactide (PLA) Composites: An Overview About Fibre and Composite Characteristics显示文摘Toddy palm fruit have an apparent density below 0.8 g/cm³and offer an interesting lightweight construction potential in polylactide(PLA)composites reinforced with 37 mass-%fibres.Single fibre bundles show similar mechanical properties compared with coir:tensile strength of 240 MPa,Young´s modulus of 3.8 GPa and an elongation at break of 31%.However,density and diameter(~50μm)of fruit fibre bundles are significantly lower.The compression moulded composites have a density of 0.9 g/cm³and achieved an unnotched Charpy impact strength of 12 kJ/m^(2),a tensile strength of 25 MPa,Young’s modulus of 1.9 GPa and an elongation at break of 9%.Due to the high porosity of the composites and the different stress-strain behaviour of fibre and matrix the fibre-reinforcement potential could not be fully used.Maximum stress of the composite was reached at the elongation at break of the PLA-matrix(~2%)while the fibre achieved its maximum stress at an elongation of~31%.After reaching the maximum stress of the composite,the fibres were pulled out from the matrix with low energy absorption,resulting in a decrease in stress and a limited reinforcement potential.Additionally,the study investigates whether an insect attack by the Asian fruit fly on the mesocarp has a significant influence on the mechanical fibre characteristics.The results have shown that only the rough surface of the fibre bundles is smoothed by insect infestation.The mechanical properties were not significantly affected.For this reason insect-infested fruits of the toddy palm,which are no longer suitable for food production,can be used for the production of sustainable composite materials.Nina Graupner Koranat Narkpiban Thiprada Poonsawat Porntip Tooptompong Jörg Müssig 2019Journal of Renewable Materials2019,7,8:0
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