Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Gregory Dahle"'
Autor:
Sophan Chhin, Gregory Dahle
Publikováno v:
Ecologies, Vol 4, Iss 3, Pp 512-520 (2023)
Diplodia pinea is a fungal pathogen that causes Diplodia shoot blight in pines and is widely spread in red pine (Pinus resinosa) and jack pine (Pinus banksiana) forests in Michigan. The objective of this study was to examine whether infection with D.
Externí odkaz:
https://doaj.org/article/e64084764db64d16b0373f8c94b419d3
Publikováno v:
Forests, Vol 14, Iss 11, p 2229 (2023)
Hemlock wooly adelgid (Adelgis tsugae Annand) (HWA) has invaded much of eastern hemlock’s (Tsugae canadensis L. Carrière) native range. Arborists and forest managers have successfully handled this pest using either contact or systemic pesticides.
Externí odkaz:
https://doaj.org/article/7376b2e4868c4c90a124630b6185a36b
Publikováno v:
Forests, Vol 11, Iss 8, p 886 (2020)
The transverse compression property is one of most important aspects of the mechanical performance of a sandwich structure with a soft core. An experiment, analytical method and three digital strain measurement systems were applied to investigate the
Externí odkaz:
https://doaj.org/article/8c95b0d7e19c4d5dba0401aed4a91405
Publikováno v:
Materials, Vol 11, Iss 11, p 2325 (2018)
A new type of Taiji honeycomb structure bonded outside with wood-based laminates was characterized from a mechanical standpoint. Both theoretical and experimental methods were employed to analyze comprehensively the deformation behavior and failure m
Externí odkaz:
https://doaj.org/article/3abaafe78bd34f5888157f27c2c1d0d1
Autor:
Matthew Walker, Gregory Dahle
Publikováno v:
Arboriculture & Urban Forestry. 49:144-156
Standardized tree risk assessment protocols are beneficial to utility vegetation management (UVM) in that they provide the most consistent qualitative assessment of a tree’s likelihood of failure, likelihood of impact, and overall risk. Yet, utilit
Autor:
Mathew Walker, Gregory Dahle
Publikováno v:
Arboriculture & Urban Forestry. 48:242-257
Utility vegetation managers need tools to predict tree-related risks and knowledge of the necessary management prescriptions to reduce the risk of windthrow damage to utilities’ electrical infrastructure. This review focuses on key studies involvin
Publikováno v:
Arboriculture & Urban Forestry. 42
Many biomechanical models include modulus of elasticity (E) but it is not always available in the literature. It would be useful to directly measure E for species, and one of the standard techniques for doing so is to utilize a universal testing mach
Autor:
Gregory Dahle, Jason Grabosky
Publikováno v:
Arboriculture & Urban Forestry. 35:311-320
The goal of maintenance pruning is the development of a tree canopy that meets a defined objective while minimizing the risk of failure. An indepth understanding of the primary functions of branches and how they influence canopy form is needed in ord
Autor:
Gregory Dahle, Harvey Holt, William Chaney, Timothy Whalen, Jason Grabosky, Daniel Cassens, Rado Gazo, Rita McKenzie, Judith Santini
Publikováno v:
Arboriculture & Urban Forestry. 32:260-264
Trees growing beneath electrical power lines are often subjected to heading cuts made during roundover trimming. Heading cuts create wounds that allow decay to enter the branch, and a decay column will form if the tree does not contain it with compar
Autor:
Gregory Dahle, Harvey Holt, William Chaney, Timothy Whalen, Daniel Cassens, Rado Gazo, Rita McKenzie
Publikováno v:
Arboriculture & Urban Forestry. 32:148-154
Trees converted from round-over to V-trims could develop a canopy of potentially weak watersprouts growing on parent stems with a high probability of decay. This study was conducted to determine if the conversion from round-over to V-trimming predisp