Modelling and analysis of a production plant for low density polyethylene

Dynamic model, tubular reactor, polyethylene, LDPE, discretization, simulation, sensitivity analysis, nonlinear analysis

Estimation of nonparametric probability density functions with applications to automatic speech recognition

Magdeburg, Univ., Fak. für Elektrotechnik und Informationstechnik, Diss., 2007

The descent of man, and selection in relation to sex. By Charles Darwin ...

2

The descent of man, and selection in relation to sex / by Charles Darwin.

1

The descent of man, and selection in relation to sex. By Charles Darwin ...

1

The descent of man, and selection in relation to sex. By Charles Darwin.

1

The descent of man, and selection in relation to sex / by Charles Darwin.

2

„Reich ist, wer viel Geld hat und Geld findet man im Labyrinth.“ Perspektiven von Kindergartenkindern auf sozioökonomische Ungleichheit

In dieser Arbeit wird die Wahrnehmung sozioökonomischer Ungleichheit durch Kinder im Kindergartenalter dargestellt. Grundlage sind vorhandene Forschungsergebnisse und eine selbstdurchgeführte Untersuchung. Im Fokus der Darstellung liegen die Wahrnehmung von Armut und Reichtum, sowie die kindlichen Ideen zur Beschaffung materieller Ressourcen. Die Ergebnisse werden in ihrer Bedeutung für die Veränderung pädagogischer Praxis diskutiert.

Effects of population density on cauliflower crop (Brassica oleracea L. var. botrytis)

An experiment was carried out to study the effects of the following population densities cauliflowers (plants per ha): 20,833 (0.60 m x 0.80 m), 25,641 (0.60 m x 0.65 m), ....37.037 (0.60 m x 0.45 m) , 55.555 (.0.60 m x 0.30 m), and 111,111 (0,60 m x 0,15 m) ; variety Snow ball. It was concluded that the effects of plant population density are greater on curd quality (weight and size) than on production per ha. The best plant population density to produce cauliflowers curd for Brazil market is from 20,000 to 25,000 plants/ha while for mini-curd is above 55,000 plants/ha.

Effects of planting density on flower production in carnation crop

The influence of density of planting on flower production of carnation plants grown in vinil houses, was studied. Planting densities of 233,333; 175,000 and 116,667 plants per hectare were obtained by using planting spacings of 0.20 m between rows and 0.15 m, 0,20 m and 0.30 m between plants. Data were taken on total number of flowers per plant and per hectare. As far as planting densities are concerned, there was an increase of total flower production per hectare and a decrease of slower production per plant.