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 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 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 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 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 Ultrasonic detection of lumber defects written by Kent A. McDonald and published by . This book was released on 1972 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: A method of locating, by ultrasonic inspection, internal defects in wood. The transit time of ultrasonic pulses through the wood, in a direction substantially perpendicular to the grain, is measured at approximately one-half inch intervals along the length and across the width of the board. The inspection is made under water. Comparison of the transit times between adjacent measurement locations provides an indication of a defect such as a knot or steep grain area between the measurement points.
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 U S D A Forest Service Research Paper FPL written by and published by . This book was released on with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications written by United States. Superintendent of Documents and published by . This book was released on 1966 with total page 1464 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalogue United States Public Documents written by and published by . This book was released on 1970 with total page 1730 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications Cumulative Index written by United States. Superintendent of Documents and published by . This book was released on 1979 with total page 1504 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 Detection of Defects in Wood by Ultrasonics written by Ramon Gonzalez Gimenez and published by . This book was released on 2001 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultrasonic wave attenuation and velocity in the transverse direction were used to detect defects in ponderosa pine (Pinus Ponderosa) lumber previously dried from green to 9% moisture content. After ultrasonic testing the boards were visually inspected for defects and classified according to the defects present. An ANOVA with Bonferroni pairwise comparison were used to establish differences between clear and defective wood. There are differences in the parameter means between clear wood and wood containing defects; however, variability in the measured parameters is great, preventing an accurate separation of defective wood from clear wood. Because of this application in industry is limited.
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 Van Vigyan written by and published by . This book was released on 1984 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Computer Optimization of Cutting Yield from Multiple ripped Boards written by Abigail R. Stern and published by . This book was released on 1978 with total page 16 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:
