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1	Microsatellites and population genetics of sycamore (Acer pseudoplatanus L.) population genetics of sycamore Pandey, Madhav January 2005 (has links) Zugl.: Göttingen, Univ., Diss., 2005 u.d.T.: Pandey, Madhav: Development of microsatellites in sycamore maple (Acer pseudoplatanus L.) and their application in population genetics / Hergestellt on demand
2	Development of microsatellites in sycamore maple (Acer pseudoplatanus L.) and their application in population genetics / Die Entwicklung von Mikrosatelliten bei Bergahorn (Acer pseudoplatanus L.) und deren Anwendung in der Populationsgenetik Pandey, Madhav 01 August 2005 (has links) No description available. 500 Naturwissenschaften Forest Sciences and Forest Ecology Acer pseudoplatanus Bergahorn Mikrosatelliten autotetraploid genetische Variation räumliche genetische Strukturen Selbstbefruchtungsanteil Acer pseudoplatanus sycamore maple microsatellites autotetraploid genetic variation spatial genetic structure rate of self-fertilization 48 Land- und Forstwirtschaft
3	Aerodynamics of the Maple Seed Desenfans, Philip January 2019 (has links) (PDF) Purpose - The paper presents a theoretical framework that describes the aerodynamics of a falling maple (Acer pseudoplatanus) seed. --- Methodology - A semi-empirical method is developed that provides a ratio stating how much longer a seed falls in air compared to freefall. The generated lift is calculated by evaluating the integral of two-dimensional airfoil elements using a preliminary falling speed. This allows for the calculation of the definitive falling speed using Blade Element Momentum Theory (BEMT); hereafter, the fall duration in air and in freefall are obtained. Furthermore, the input-variables of the calculation of lift are transformed to require only the length and width of the maple seed. Lastly, the method is applied to two calculation examples as a means of validation. --- Findings - The two example calculations gave percentual errors of 5.5% and 3.7% for the falling speed when compared to measured values. The averaged result is that a maple seed falls 9.9 times longer in air when released from 20 m; however, this result is highly dependent on geometrical parameters which can be accounted for using the constructed method. --- Research limitations - Firstly, the coefficient of lift is unknown for the shape of a maple seed. Secondly, the approximated transient state is yet to be verified by measurement. --- Originality / Value - The added value of this report lies in the reduction of simplifications compared to BEMT approaches. In this way a large amount of accuracy is achieved due to the inclusion of many geometrical parameters, even though simplicity is maintained. This has been accomplished through constructing a simple three-step method that is fundamental and essentially non-iterative. ddc:620 info:eu-repo/classification/ddc/629.13 Aerodynamik Ahorn Auftrieb Strömungsabriss Aerodynamics Maple Lift (Aerodynamics) Stalling (Aerodynamics) Aerodynamisches Profil Anstellwinkel Freier Fall Bergahorn Samen Evolutionsbiologie Aerofoils Angle of attack (Aerodynamics) Acer pseudoplatanus Seeds Evolution (Biology) Blade Element Momentum Theory BEMT free fall post-stall chord twist camber autorotation

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