Steve P. Verrill

Treesearch Publications

• Steve P. Verrill, Frank C. Owens, Rubin Shmulsky, Robert J. Ross. 2021. Java image analysis program for lumber knots, and related nonlinear least squares routines for fitting lumber modulus of rupture to strength predictors
• Steve P. Verrill, Frank C. Owens, Rubin Shmulsky, Robert J. Ross. 2021. Improved models for predicting the modulus of rupture of lumber under third point loading
• Guangmei Cao Anderson, Frank C. Owens, Steve P. Verrill, Robert J. Ross, Rubin Shmulsky. 2021. Fitting Statistical Distribution Models to MOE and MOR in Mill-Run Spruce and Red Pine Lumber Populations
• Steve P. Verrill, Frank C. Owens, Matthew A. Arvanitis, David E. Kretschmann, Rubin Shmulsky, Robert J. Ross, Patricia K. Lebow. 2020. Estimated probability of breakage of lumber of a fixed “grade” can vary greatly from mill to mill and time to time
• Frank C. Owens, Steve P. Verrill, Rubin Shmulsky, Robert J. Ross. 2020. Distributions of MOE and MOR in eight mill-run lumber populations (four mills at two times)
• Steve P. Verrill, Frank C. Owens, David E. Kretschmann, Rubin Shmulsky, Linda S. Brown. 2019. Visual and MSR grades of lumber are not two-parameter Weibulls and why it matters (with a discussion of censored data fitting)
• Frank Owens, Steve P. Verrill, Rubin Shmulsky, Robert J. Ross. 2019. Distributions of modulus of elasticity and modulus of rupture in four mill run lumber populations
• Steve P. Verrill, Frank C. Owens, David E. Kretschmann, Rubin Shmulsky, Linda S. Brown. 2019. Visual and MSR grades of lumber are not 2-parameter Weibulls and why this may matter
• Steve P. Verrill, David E. Kretschmann. 2019. Simulations of nonparametric analyses of predictor sort (matched specimens) data
• Steve P. Verrill, Frank C. Owens, David E. Kretschmann, Rubin Shmulsky. 2018. A fit of a mixture of bivariate normals to lumber stiffness–strength data
• Frank C. Owens, Steve P. Verrill, Rubin Shmulsky, David E. Kretschmann. 2018. Distributions of MOE and MOR in a full lumber population
• Steve P. Verrill, Frank C. Owens, David E. Kretschmann, Rubin Shmulsky. 2017. Statistical models for the distribution of modulus of elasticity and modulus of rupture in lumber with implications for reliability calculations
• Steve P. Verrill, David E. Kretschmann. 2017. Reminder about potentially serious problems with a type of blocked ANOVA analysis
• Umesh P. Agarwal, Sally Ralph, Carlos Baez, Richard Reiner, Steve P. Verrill. 2017. Effect of sample moisture content on XRD-estimated cellulose crystallinity index and crystallite size
• Steve P. Verrill, David E. Kretschmann, James W. Evans. 2017. Simulations of solid lumber strength property monitoring tests
• Steve P. Verrill, David E. Kretschmann, James W. Evans. 2016. Maximum likelihood estimation of the parameters of a bivariate Gaussian-Weibull distribution from machine stress-rated data
• Steve P. Verrill, James W. Evans, David E. Kretschmann, Cherilyn Hatfield. 2015. Asymptotically efficient estimation of a bivariate Gaussian-Weibull distribution and an introduction to the associated pseudo-truncated Weibull
• Xiping Wang, Robert J. Ross, Steve P. Verrill, Eini C. Lowell, Jamie Barbour. 2015. Acoustic Evaluation of Thinning and Biosolid Fertilization Effects on Wood Quality of a Douglas-fir stand
• Steve P. Verrill, James W. Evans, David E. Kretschmann, Cherilyn Hatfield. 2014. Reliability Implications in Wood Systems of a Bivariate Gaussian-Weibull Distribution and the Associated Univariate Pseudo-truncated Weibull
• Xiping Wang, Steve P. Verrill, Eini C. Lowell, Robert J. Ross, Vicki L. Herian. 2013. Acoustic sorting models for improved log segregation
• Charles Carll, Charles R. Boardman, Steve P. Verrill. 2013. Durability of Hardboard Lap Siding
• Steve P. Verrill, James W. Evans, David E. Kretschmann, Cherilyn A. Hatfield. 2013. An Evaluation of a Proposed Revision of the ASTM D 1990 Grouping Procedure
• Q.Q. Wang, Junyong Zhu, Richard Reiner, Steve P. Verrill, U. Baxa, S.E. McNeil. 2012. Approaching zero cellulose loss in cellulose nanocrystal (CNC) production: recovery and characterization of cellulosic solid residues (CSR) and CNC
• Steve P. Verrill, David E. Kretschmann. 2012. Sources of Confusion in the Determination of ASTM Repetitive Member Factors for the Allowable Properties of Wood Products
• James W. Evans, David E. Kretschmann, Cherilyn Hatfield, Steve P. Verrill. 2012. Small Sample Properties of Asymptotically Efficient Estimators of the Parameters of a Bivariate Gaussian–Weibull Distribution
• Steve P. Verrill, James W. Evans, David E. Kretschmann, Cherilyn Hatfield. 2012. Asymptotically efficient estimation of a bivariate Gaussian–Weibull distribution and an introduction to the associated pseudotruncated Weibull
• Junyong Zhu, Steve P. Verrill, Hao Liu, Victoria Herian, Xuejun Pan, Donald L. Rockwood. 2011. On polydispersity of plant biomass recalcitrance and its effects on pretreatment optimization for sugar production
• David E. Kretschmann, Victoria Herian, Michael C. Wiemann, Harry A. Alden, Steve P. Verrill. 2011. Concerns about a variance approach to X-ray diffractometric estimation of microfibril angle in wood
• Steve P. Verrill, David E. Kretschmann. 2010. Repetitive member factors for the allowable properties of wood products
• Steve P. Verrill, David E. Kretschmann, Victoria Herian, Michael C. Wiemann, Harry A. Alden. 2010. Concerns about a variance approach to the X-ray diffractometric estimation of microfibril angle in wood
• Steve P. Verrill, David E. Kretschmann. 2009. Material variability and repetitive member factors for the allowable properties of engineered wood products
• Steve P. Verrill, Richard A. Johnson, James W. Evans. 2009. Statistical framework for comparing lumber sorting procedures
• Xiping Wang, Richard Bergman, William T. Simpson, Steve P. Verrill, Terry Mace. 2009. Heat-treatment options and heating times for ash firewood
• Johannes Forkman, Steve P. Verrill. 2008. The distribution of McKay's approximation for the coefficient of variation
• Steve P. Verrill, David E. Kretschmann. 2008. Material variability and repetitive member allowable property adjustments in forest products engineering
• Steve P. Verrill. 2007. Rate of convergence of k-step Newton estimators to efficient likelihood estimators
• Steve P. Verrill, Richard A. Johnson. 2007. Confidence bounds and hypothesis tests for normal distribution coefficients of variation
• Steve P. Verrill, Richard A. Johnson. 2007. Confidence bounds and hypothesis tests for normal distribution coefficients of variation
• Steve P. Verrill, David E. Kretschmann, Victoria Herian. 2006. JMFA2—a graphically interactive Java program that fits microfibril angle X-ray diffraction data
• Roland Hernandez, David W. Green, David E. Kretschmann, Steve P. Verrill. 2005. Improved utilization of small-diameter ponderosa pine in glulam timber
• Steve P. Verrill, Mark Durst. 2005. The decline and fall of Type II error rates
• Steve P. Verrill, Mark Durst. 2005. The decline and fall of Type II error rates
• Steve P. Verrill, Victoria Herian, David W. Green. 2004. Predictor sort sampling and confidence bounds on quantiles I: asymptotic theory
• Steve P. Verrill, Victoria Herian, Henry N. Spelter. 2004. Estimating the board foot to cubic foot ratio
• William T. Simpson, Xiping Wang, Steve P. Verrill. 2003. Heat sterilization time of ponderosa pine and Douglas-fir boards and square timbers
• Steve P. Verrill. 2003. Confidence bounds for normal and lognormal distribution coefficients of variation
• Steve P. Verrill, Victoria Herian, David W. Green. 2002. Predictor sort sampling and one-sided confidence bounds on quantiles
• Steve P. Verrill, David E. Kretschmann, Victoria Herian. 2001. JMFA—a graphically interactive Java program that fits microfibril angle X-ray diffraction data
• Jen Y. Liu, William T. Simpson, Steve P. Verrill. 2001. An inverse moisture diffusion algorithm for the determination of diffusion coefficient
• Steve P. Verrill. 2001. Rolling your own : linear model hypothesis testing and power calculations via the singular value decomposition
• Steve P. Verrill, David W Green, Victoria Herian. 2000. Power calculations in the predictor sort computer program
• Jen Y. Liu, William T. Simpson, Steve P. Verrill. 2000. An inverse moisture diffusion algorithm for the determination of diffusion coefficient
• Steve P. Verrill. 1999. When good confidence intervals go bad: predictor sort experiments and ANOVA
• William T. Simpson, Steve P. Verrill. 1997. Estimating kiln schedules for tropical and temperate hardwoods using specific gravity
• Steve P. Verrill, D. W. Green, V. L. Herian. 1997. TT: a program that implements predictor sort design and analysis
• Steve P. Verrill, D. W. Green. 1996. Predictor sort sampling, tight t's, and the analysis of covariance: theory, tables, and examples
• A. De Souza Mendes, W. T. Simpson, Steve P. Verrill. 1995. Laboratory test for grouping tropical species for kiln drying
• Steve P. Verrill. 1993. Predictor sort sampling, tight T's, and the analysis of covariance