Download or read book Locating Defects in Softwood Lumber written by Kent Allen McDonald and published by . This book was released on 1971 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Locating Lumber Defects by Ultrasonics written by Kent A. McDonald and published by . This book was released on 1969 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Lumber Defect Detection by Ultrasonics written by Kent A. McDonald and published by . This book was released on 1978 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nondestructive Methods for Detecting Defects in Softwood Logs written by Kristin C. Schad and published by . This book was released on 1996 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wood degradation and defects, such as voids and knots, affect the quality and processing time of lumber. The ability to detect internal defects in the log can save mills time and processing costs. In this study, we investigated three nondestructive evaluation techniques for detecting internal wood defects. Sound wave transmission, x-ray computed tomography, and impulse radar were used to examine white spruce and balsam fir logs. Computed tomography resulted in the highest resolution for voids, knots, and high moisture content areas, but at a very high price. Both sound wave transmission and impulse radar were able to detect large voids and areas of degradation, and these techniques showed some sensitivity to very knotty logs. None of the methods was able to detect small pockets of decay. The use of radar requires an experienced operator because of the difficulty of interpreting the data.

Download or read book Locating Lumber Defects by Ultrasonics written by and published by . This book was released on 1969 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Locating Lumber Defects by Ultrasonics written by Kent A. McDonald and published by . This book was released on 1969 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Lumber Defect Detection by Ultrasonics written by Kent A. MacDonald and published by . This book was released on 1978 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultrasonics, the technology of high-frequency sound, has been developed as a viable means for locating most defects in lumber for use in digital form in decision-making computers. Ultrasonics has the potential for locating surface and internal defects in lumber of all species, green or dry, and rough sawn or surfaced. (Author).

Download or read book Defects in Hardwood Timber written by Roswell D. Carpenter and published by . This book was released on 1989 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U S D A Forest Service Research Paper FPL written by and published by . This book was released on 1968 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book List of Publications written by Forest Products Laboratory (U.S.) and published by . This book was released on 1973 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Method for Estimating Operability and Location of the Timber Resource written by John S. Spencer and published by . This book was released on 1986 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research Paper FPL written by and published by . This book was released on 1981 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NBS Special Publication written by and published by . This book was released on 1932 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effective thickness of paper written by Michael R. Rosenthal and published by . This book was released on 1977 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Predicting Softwood Cutting Yield by Computer written by Bernard J. Erickson and published by . This book was released on 1972 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book National Bureau of Standards Miscellaneous Publication written by and published by . This book was released on 1932 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Operability and Location of Michigan s Timber Resource written by Mark H. Hansen and published by . This book was released on 1987 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: