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Forest Products Laboratory
One Gifford Pinchot Drive
Madison, WI 53726-2398
Phone: (608) 231-9200
Fax: (608) 231-9592
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Economics, Statistics and Life Cycle Analysis Research

Project Title :  Apply statistical method to enhance the quality of FPL's wood utilization research and economics research
Project Number : FPL-4851-1A
Status : TERMINATED
Start Date : 07-23-2007
End Date : 07-23-2012


View the 29 publications associated with this project.

Principal Investigator:
Kenneth E. Skog

Non Technical Summary
PhotoThis problem focuses on enhancing FPL research through collaboration with other FPL scientists, through professional support to scientists and through technology transfer of research results in the form of user-friendly computer programs that provide new capabilities for FPL scientists. Collaborative research occurs where the research has a substantial statistical component. Professional support provides assistance to scientists in designing experiments, analyzing data, mathematical modeling of results, and summarizing experimental results in tables and graphical displays. Computer programs are a part of the technology transfer efforts of the RWU and allow scientists easy access to the statistical tools developed by the RWU and to research results from the collaborative research efforts.


Objectives Summary
The objective of this problem area is to apply statistical methods to enhance the quality of FPL's wood utilization research and economics research. This problem emphasizes continued support to the FPL research program through a collaborative research relationship with FPL research staff. This problem has long been a critical part of FPL statistics research. Numerous FPL studies have been enhanced by the ability of scientists to get professional assistance with designing experiments, analyzing data, mathematical modeling, and summarizing experimental results in tables and graphical displays. FPL's research program in major areas such as its composite research requires the expertise of multidisciplinary teams to attack critical problems. Members of the Statistics Unit are integral parts of these research teams. They bring the ability to help the team identify research objectives, decide on the best research approach, and design experiments that effectively and efficiently allow testing of research hypotheses.


Approach Summary
This problem focuses on enhancing FPL research through collaboration with other FPL scientists, through professional support to scientists and through technology transfer of research results in the form of user-friendly computer programs that provide new capabilities for FPL scientists. Collaborative research occurs where the research has a substantial statistical component. Professional support provides assistance to scientists in designing experiments, analyzing data, mathematical modeling of results, and summarizing experimental results in tables and graphical displays. Computer programs are a part of the technology transfer efforts of the RWU and allow scientists easy access to the statistical tools developed by the RWU and to research results from the collaborative research efforts. Anticipated activities in the next 5 years are as follows: Modeling properties and evaluating grading of solid-sawn wood products. Planned attainments: 1. Develop grading and property assignment procedures for recycled lumber. 2. Develop an improved grading system for round timbers that is applicable to logs from fire-killed and from small-diameter trees. 3. Develop an improved understanding of the relationship of mechanical properties of lumber and growth characteristics. Serviceability of wood products. Planned attainments: 1. Expand the existing model for predicting the effect of temperature on modulus of elasticity to 4% moisture content. 2. Develop models(s) for predicting the immediate effect of temperature on bending strength. 3. Develop model(s) to predict the service life after exposure to higher temperatures over long periods of time. 4. Evaluate the effects of intermittent versus continuous exposure to high temperatures on estimating the flexural properties. 5. Evaluate accelerated leaching studies, including soil contact and non-soil contact, and develop models to predict in-service leaching for above-ground and in-ground contact. 6. Evaluate nondestructive measures of wood degradation and develop models to predict in-service performance. 7. Highlight statistical issues that impact preservative evaluations, such as censoring in repeated measurement studies and multiple comparisons and multiple testing. Professional support to other FPL researchers, the Forest Service, and the public Accomplishment of the professional support effort will be demonstrated by: 1. Participation with other FPL scientists on consensus standard committees. 2. Providing technical advice to the American Lumber Standards Committee and its Board of Review, through its obligation as a nonvoting member representing the U.S. Department of Agriculture. 3. Continued support to FPL scientists in their research and support to Forest Service goals.

Publications associated with this Project

Publication YearTitleDate Posted
2009A Comparison of the Durability of Two Stake Sizes in Southern Mississippi05/17/10
2009Acoustic Sorting Models for Log Segregation05/02/11
2009ASSESSING WOOD QUALITY OF BORER-INFESTED RED OAK LOGS WITH A RESONANCE ACOUSTIC TECHNIQUE06/26/09
2007Chapter 8; Paper and pulp output continues to climb in Europe and Russia, but falls in North America: Markets for paper, paperboard and woodpulp, 2006-200709/07/10
2011Comparison of Wood Preservatives in Stake Tests 2011 Progress Report12/20/11
2010Concerns about a Variance Approach to the X-ray Diffractometric Estimation of Microfibril Angle in Wood11/15/10
2011Concerns about a Variance Approach to X-ray Diffractometric Estimation of Microfibril Angle in Wood06/10/11
2009Correlation between oxalic acid production and tolerance of Tyromyces palustris strain TYP-6137 to N',N-naphthaloylhydroxamine11/02/09
2008Effect of cyclic long-term temperature exposure on the bending strength of lumber10/15/10
2010Effect of Treatment Pressure on Treatment Quality and Bending Properties of Red Pine Lumber01/10/11
2010Efficacy of Fatty Acid Chemistry: Candidate Mold and Decay Fungicides03/08/11
2008Engineering Properties of Douglas-fir Lumber Reclaimed from Deconstructed Buildings10/15/10
2008Estimating preservative release from treated wood exposed to precipitation10/15/10
2011Evaluation of strength-controlling defects in paper by stress concentration analyses09/12/12
2008Grading and properties of small-diameter Douglas-fir and ponderosa pine tapered logs07/06/09
2010Influence of chemical treatments on moisture-induced dimensional change and elastic modulus of earlywood and latewood10/20/10
2010Investigation of Shift in Decay Hazard (Scheffer) Index Values over the Period 1969-2008 in the Conterminous United States05/16/11
2009Material Variability and Repetitive Member Factors for the Allowable Properties of Engineered Wood Products10/06/10
2011NHA Choice test : Feeding Dilemma for Reticulitermes flavipes (Kollar)06/06/11
2011On Polydispersity of Plant Biomass Recalcitrance and Its Effects on Pretreatment Optimization for Sugar Production09/07/11
2010Penetration of Boron from Topically Applied Borate Solutions07/15/10
2009Pressure Treatment with a Water-based Chlorothalonil Formulation05/17/10
2010Repetitive Member Factors for the Allowable Properties of Wood Products10/22/10
2012Sources of Confusion in the Determination of ASTM Repetitive Member Factors for the Allowable Properties of Wood Products09/17/12
2008The immediate effect of temperature on the modulus of elasticity of green and dry lumber10/15/10
2010The Need for Performance Criteria in Evaluating the Durability of Wood Products05/16/11
2011The Statistics of wood assays for preservative retention03/14/12
2008Theoretical thermal conductivity equation for uniform density wood cells10/15/10
2008Wisconsin Street Tree Assessment 2002-200305/17/10

Project Summaries last modified: 06-21-2011