Thesis (M.S.)--University of Wisconsin--Madison, 1961. / Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 92-93).

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This diploma thesis is focused on microclimatic differences at treelines on north-facing and south-facing slopes and their effect on tree growth. Thesis contains an overview of factors affecting development and timing of xylogenesis. The effects of slope orientation on treeline in relation to exposure effect are mentioned as well. The aim of the practical part of diploma thesis was to determine development, timing and the impact of temperature characteristics on xylogenesis of Norway spurce (Picea abies) on two localities with opposite slope aspect. Locations were situated in the Důl Bílého Labe valley, Krkonoše Mountains. Xylogenesis was studied using sections of micro-cores. Microcores were sampled every 10 days during the growing season. They were subsequently analyzed in dendrochronological laboratory. My results show that influence of air temperature recorded at the start of cambial cell division and the development of enlarging cells in the first part of the growing season. Climatic characteristics of both sites was similar, larger differences in temperatures were recorded at the beginning and at the end of the reference period.

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The objective of this study was to determine whether exercise-induced hyperthermia results in an increase in uterine temperature, as measured by an iButton temperature-measurement device inserted into the uterus, comparable to temperatures measured by a rectal thermometer or microchip with temperature-recording capability implanted in the neck. The 3 methods of measurement were examined under 4 different management conditions. The Control-pasture (Cont P) group was maintained in a pasture without man-made shelter, with the intent to measure effects of ambient temperature. The Control- No device (Cont N) group was under the same management conditions, but did not have intrauterine temperature measurement devices implanted. The Control-stall (Cont S) group was housed in individual stalls with fans in an effort to minimize the effect of environmental temperature. The Exercise (EXE) group was also housed in stalls with fans, similar to Cont S but was also subjected to 45 min of exercise each day. The results of this study indicate that the 3 methods of temperature measurement are equally repeatable when evaluating temperatures during exercise (P<0.001). Among the treatment groups, rectal temperatures were lowest in the Cont N and Cont P groups (P<0.05). In contrast, for both the microchip and iButton data, the mares in Cont S and EXE had the lowest core temperatures (P<0.001), indicating that horses under this management type underwent the least amount of heat stress as indicated by core temperature. While rectal temperatures did not show a diurnal effect, both core temperatures (microchip and iButton) showed significant differences between times (P<0.05 and P<0.005, respectively), demonstrating a diurnal temperature effect.

Thesis (M.S.) in Mechanical Engineering--University of Maine, 2002. / Includes vita. Includes bibliographical references (leaf 108).

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