This study was conducted to compare the methods of seed bedpreparation in rangelands of Khash region in Sistan and Baluchestan province inIran. A split plot design was conducted based on Randomized complete blockdesign with three replications in 1999. Five seed bed preparation methods wereused as main plot as: 1) Seed sown by passing livestock. 2) Seed sown machinery.3) Seeds sown as drilled in...

Auf dem Markt der Meta-Modellierungswerkzeuge stehen sich generische Werkzeuge, Generatoren und Frameworks gegenüber. Die Abschätzung von Aufwand und Nutzen der unterschiedlichen Ansätze fällt jedoch aufgrund fehlender Erfahrungsberichte schwer. Um dieses Defizit zu beseitigen, stellt der folgende Beitrag ein generisches Werkzeug vor und beschreibt die Sprachanpassung sowie die Modellierung mit...

A common method to create high dynamic range (HDR) images is to combine several different exposures of the same scene. In this approach, the use of higher ISO settings will reduce exposure times, and thereby the total capture time. This is advantageous in certain environments where it may help minimize ghosting artifacts. However, exposures taken at high sensitivity settings tend to be noisy, w...

A compact overall design of a multispectral camera can be achieved by placing the bandpass filters between the lens and sensor. However, internal reflections between the sensor (or IR cut filter) and the optical filters may lead to weak duplicate images which impair the image quality. The duplicates called ghosting are especially noticeable near bright image regions and interfere with the surro...