151 research outputs found
The Influence of Wild Boars on the Growth of Forest Trees and Stands: A Case Study of a Wild Boar Game Preserve
This research investigated
methods
for
determin
ing
and quantify
ing
the impact of wild
boars on the increment and growth of forest trees and stands. The influence
of wild boars
on stand
variables was observed
in a wild
game preserve
established in central Slovakia in 2000
practicing
intensive wild boar management
.
Long
-
term measurements obtained from two long
-
term research
plots of
sessile
oak trees
established in 1969 were used
to monitor stand growth.
I
ncrements of trees
were observed on tree ring cores coming from
trees surrounded by
differently damaged soil surface
s
.
Wild boars
rooting
the soil surface proved
to have
neither a positive nor
negative influence on the
mean diamet
er and height of the forest stands. Analysis of radial increments in
9
trees growing on sites
with more intense, deeper
,
and permanent
rooting
in
the soil profile
located near a
larger mud bath was
also carried out. A more distinctive increment depression was found on one oak
near the mud bath
and
on one b
eech where deeper soil surface rooting
occurred
Vertical Lift of Handling Equipment for Moving Containers
Bakalářská práce je zaměřena na navržení fungujícího mechanismu zdvihu manipulačního zařízení pro přesun kontejnerů ve vodorovném směru. Nejprve se zabývám výpočtem součástí potřebných pro konstrukci, dále navržením pohonu, vytvořením 3D modelu v CAD programu a nakonec tvorbou 2D modelu.The bachelor is focused on design a functional mechanism of lift of handling equipment for moving containers in horizontal directino. At first, I'm concerned with calculation of used components, than drive proposal, making a 3D model in a CAD and creating a 2D model
Design of a pylon for the acceleration test stand
Cílem diplomové práce je navržení koncepční konstrukce pylonu akceleračního testovacího stanoviště pro zkoušky bezpečnostních prvků auta. Nejprve bude vysvětlena funkce celého testovacího standu, poté bude navrženo několik koncepčních konstrukcí pylonu ve 3D CAD programu. Následně se vybraná verze dopracuje. Nakonec se provedou kontrolní výpočty důležitých částí a na jejich základě se optimalizuje konstrukce.The aim of the diploma thesis is to design a consceptual construction of the pylon for the acceleration test stand for tests of safety car features. First, the function of the entire test stand will be explained, then several conceptual pylon structures will be proposed in the 3D CAD program. The selected version will be finalized. At the end, control calculations of some important parts and optimization of construction will be made
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