Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Frank C. Owens"'
Publikováno v:
BioResources, Vol 19, Iss 4, Pp 9741-9772 (2024)
Prior work on computer-vision wood identification (CVWID) for North American hardwoods yielded two independent deep learning models – a 22-class model for diffuse-porous woods and a 17-class model for ring-porous woods – but did not address semi-
Externí odkaz:
https://doaj.org/article/1225d8d6990746a9bc7a77b6b9f8f1a9
Publikováno v:
Frontiers in Plant Science, Vol 12 (2022)
Availability of and access to wood identification expertise or technology is a critical component for the design and implementation of practical, enforceable strategies for effective promotion, monitoring and incentivisation of sustainable practices
Externí odkaz:
https://doaj.org/article/122d6ccb9e3943248ad51a353b782e6c
Autor:
Prabu Ravindran, Frank C. Owens, Adam C. Wade, Patricia Vega, Rolando Montenegro, Rubin Shmulsky, Alex C. Wiedenhoeft
Publikováno v:
Frontiers in Plant Science, Vol 12 (2021)
Illegal logging is a major threat to forests in Peru, in the Amazon more broadly, and in the tropics globally. In Peru alone, more than two thirds of logging concessions showed unauthorized tree harvesting in natural protected areas and indigenous te
Externí odkaz:
https://doaj.org/article/343b4f02e6a24320a19914a13bb301b5
Publikováno v:
Canadian Journal of Forest Research. 52:1014-1027
Wood identification is vitally important for ensuring the legality of North American hardwood value chains. Computer vision wood identification (CVWID) systems can identify wood without necessitating costly and time-consuming off-site visual inspecti
Publikováno v:
Wood and Fiber Science. 53:17-26
It has been mathematically demonstrated that the distribution of modulus of rupture (MOR) in a graded lumber subpopulation does not have the same theoretical form as the distribution of the mill-run population from which the subpopulation is drawn. H
Publikováno v:
Wood and Fiber Science. 52:165-177
To evaluate the reliability of lumber structures, good models for the strength and stiffness distributions of visual and machine stress-rated (MSR) grades of lumber are necessary. Verrill and coworkers established theoretically and empirically that t
Publikováno v:
BioResources. 15:3874-3887
In recent years, the capital investment amounts flowing into the forest products industry in the southeastern United States have been unequal from state to state. Reasons for this have been informally hypothesized, but the topic has not been research
Publikováno v:
BioResources. 15:2495-2500
There is a current and pressing need to develop engineering standards for timber- and other wood-based mats. In 2018 a group of mat producers and users began discussing a potential grading specification standard specific to mats. There are large gaps
Autor:
Guangmei Cao Anderson, Robert Ross, Frank C. Owens, Rubin Shmulsky, Frederico José Nistal França
Publikováno v:
Forest Products Journal. 70:275-278
Metriguard's grain angle meter (Model 511) measures grain angle in wood by assessing permittivity. This study evaluates the correlations between grain angle meter readings and bending properties of 1,400 kiln-dried 2 by 4 specimens of southern pine (
Publikováno v:
Wood and Fiber Science. 51:387-401
The literature related to the phenomenon of pseudo-truncation has emphasized that the mechanical property distributions of graded lumber subpopulations are determined by the mechanical property distributions of the mill-run (or full) lumber populatio