THE UNIVERSITY OF CALGARY Biomechanics in Botanical Trees
Bibliographic record
Abstract
In this thesis, I describe a method for creating tree models with realistically curved branches, by considering the tree’s development in the context of its environment. The final shape of the branches results from their growth under the influence of gravity and tropisms. Using the framework of L-systems, I extend Jirasek’s biomechanical simulation of a plant axis to correctly represent entire trees. I present simulations of reaction wood and branch breakage due to excessive stress, as well as methods for controlling tree architecture. The result of all these factors is a multi-year biomechanical simulation of tree growth, which produces a realistic tree shape at every stage of its development. As a case study, my model is used to represent the mutant crooked poplar tree. I also investigate the dynamics problem of representing oscillatory motion of tree branches. I solve a two-dimensional problem using non-inertial systems to model a branched system of spring-linked segments. The remainder of the dynamics solution is left as future work. iii Acknowledgements I would like to express my gratitude to my supervisor Dr. Przemyslaw Prusinkiewicz for his
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".