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Skip to Search Results- 4Hacke, U.G.
- 4Hacke, Uwe G.
- 4Sperry, John S.
- 2 Feild, Taylor S.
- 2 Feild, Taylor S.
- 2 Pittermann, Jarmila
- 2Hacke, Uwe (Renewable Resources)
- 1Hamann, Andreas (Renewable Resources)
- 1Hayes,Robert E. (Chemical and Materials Engineering)
- 1Jar, P. -Y. Ben (Department of Mechanical Engineering)
- 1Li, Leijun (Chemical and Materials Engineering)
- 1Liu, Qingxia (Department of Chemical and Materials Engineering)
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Adaptation of trembling aspen and hybrid poplars to frost and drought: implications for selection and movement of planting stock in western Canada
DownloadFall 2012
This study contains a series of experiments to evaluate growth performance and survival of hybrid poplars (Populus spp.) and trembling aspen (Populus tremuloides Michx.) in boreal planting environments in western Canada. Ecophysiological traits related to drought resistance and winter survival...
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Spring 2016
Hosseininejad, Seyed Shaham Aldin
To overcome the challenges of low recovery of fine particles in flotation processes, designing a cavitating device that can enhance the recovery has been a major topic of study. In the design of a cavitating device, the bubble/bubble interactions, bubble response to the change of local pressure,...
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Fall 2014
Ductile and brittle failure behaviors of semi-crystalline polymers such as high density polyethylene (HDPE) were investigated under uni-axial tensile loading at various test conditions. The first part of the thesis examines the influence of aspect ratio of rectangular cross-section on the...
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Fall 2012
Variation in xylem structure and function has been extensively studied across different species with a wide taxonomic, geographical and ecological coverage. In contrast, our understanding of how xylem of a single species can adjust to different growing conditions remains limited. In this thesis,...
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Experimental and numerical simulation of degradation of pollutants in water by microbubble-enhanced cold plasma activation -Degradation - Effect of pollutants’ initial concentration
DownloadSpring 2024
The necessity to secure reliable water resources has always been a challenge for human societies. Numerous factors contribute to heightened concerns, often resulting in serious crises for governments striving to ensure the provision of clean potable water for diverse purposes. At the same time,...
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Genetic variation of hydraulic and wood anatomical traits in hybrid poplar and trembling aspen
Download2011
Hacke, U.G., Schreiber, S.G., Hamann, A., Thomas, B.R.
•Intensive forestry systems and breeding programs often include either native aspen or hybrid poplar clones, and performance and trait evaluations are mostly made within these two groups. Here, we assessed how traits with potential adaptive value varied within and across these two plant groups....
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Heterogeneous distribution of pectin epitopes and calcium in different pit types of four angiosperm species
Download2011
Intervessel pits act as safety valves that prevent the spread of xylem embolism. Pectin–calcium crosslinks within the pit membrane have been proposed to affect xylem vulnerability to cavitation. However, as the chemical composition of pit membranes is poorly understood, this hypothesis has not...
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2007
Hacke, Uwe G., Feild, Taylor S., Sano, Yuzuo, Sperry, John S., Sikkema, Elzard H.
We tested two hypotheses for how vessel evolution in angiosperms influenced xylem function. First, the transition to vessels decreased resistance to flow—often considered the driving force for their evolution. Second, the transition to vessels compromised safety from cavitation—a constraint...
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2007
Sano, Yuzuo, Hacke, Uwe G., Sperry, John S., Sikkema, Elzard H., Feild, Taylor S.
We tested two hypotheses for how vessel evolution in angiosperms influenced xylem function. First, the transition to vessels decreased resistance to flow—often considered the driving force for their evolution. Second, the transition to vessels compromised safety from cavitation—a constraint...
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Spring 2020
The main objective of the present study is to experimentally and numerical studies of hydrodynamic cavitation phenomenon in the Venturi tubes, in order to validate and further develop numerical multiphase flow models with the obtained data. To achieve this, a visible experimental set-up was...