Computerized Technique for Recording Board Defect Data

Computerized Technique for Recording Board Defect Data
Author: R. Bruce Anderson
Publisher:
Total Pages: 24
Release: 1993
Genre: Lumber
ISBN:

S2A computerized technique for recording board defect data has been developed that is faster and more accurate than manual techniques. The lumber database generated by this technique is necessary input to computer simulation models that estimate potential cutting yields from various lumber breakdown sequences. The technique provides detailed information on the location and type of defects. S3.

West Virginia Yellow-poplar Lumber Defect Database

West Virginia Yellow-poplar Lumber Defect Database
Author: Lawrence E. Osborn
Publisher:
Total Pages: 688
Release: 1992
Genre: Liriodendron tulipifera
ISBN:

S2In West Virginia, yellow-poplar (Liriodendron tulipifera) is abundant and is a prime candidate for increased utilization in a variety of manufacturing industries. Computer simulations are a cost-effective tool for estimating potential cutting yields from lumber. They can be used to promote increased use of yellow-poplar in the furniture, cabinet, and architectural woodworking industries and may also lead to increased utilization of the lower grades of lumber. This paper describes the data collection methods and the format of the new West Virginia yellow-poplar lumber defect database that was developed for use with computer simulation programs. The database contains descriptions of 627 boards, totaling approximately 3,800 board feet, collected in West Virginia for grades FAS, FASIF, No. 1 Common, No. 2A Common, and No. 28 Common.S3.

1992 Data Bank for Red Oak Lumber

1992 Data Bank for Red Oak Lumber
Author: Charles J. Gatchell
Publisher:
Total Pages: 52
Release: 1992
Genre: Lumber
ISBN:

The 1992 Data Bank for Red Oak Lumber is a collection of fully described FAS, Selects, No. 1 Common, and No. 2A Common boards (a total of 1,578 at present). The data bank has two unique features to aid in sample selection. The first feature is the double grading of FAS, No. 1 Common, and No. 2A Common boards to reflect the surface area in grading cuttings when grading with standard National Hardwood Lumber Association (NHLA) procedures and when using as many grading cuttings as possible under NHLA rules. The latter gives a more accurate predictor of the potential utility of the board. The second feature is the inclusion of quality levels for the No. 1 Common and No. 2A Common boards. Written for researchers and industrial decision makers who may have only a limited knowledge of the NHLA grades, the data bank contains a limited description of factors affecting the grades. Included are a description of Realistic Grading System (ReGS), the computer program for grading lumber; some reasons why lumber users who buy kiln dried lumber may want to specify the Special Kiln Dried Rule; the effect of kiln-drying on soundness of knots; and the surprising finding that relatively few No. 1 Common and No. 2A Common boards contain any pith at all.

Proceedings

Proceedings
Author: J. Daniel Dolan
Publisher:
Total Pages: 414
Release: 1996
Genre: Forest ecology
ISBN: