Zobrazeno 1 - 10
of 70
pro vyhledávání: '"J. D. Barrett"'
Autor:
Kosmas Panagiotidis, Foster Hart, Z. Pirouz, J. D. Barrett, Shawn D. Mansfield, C. Lazarescu, Stavros Avramidis
Publikováno v:
International Wood Products Journal. 8:32-35
An optimum artificial neural network and a partial least square with discriminant analysis regression were developed and tested for accuracy in distinguishing two wood species by using near-infrared (NIR) spectrum. A mixed population of kiln-dried wo
Publikováno v:
Wood Science and Technology. 38:83-92
A study has been conducted to establish the influence of knot area ratio based grading rules on the bending properties of full size Hem-fir (Western Hemlock and Amabilis fir) timber used in Japanese post and beam building construction. Bending streng
Publikováno v:
Plant Cell Reports. 18:948-953
Trees were regenerated from six white spruce embryogenic clones after cryopreservation for 3 and 4 years, respectively. Genetic stability was evaluated using randomly amplified polymorphic DNA (RAPD) fingerprints. Somaclonal variation was detected in
Publikováno v:
In Vitro Cellular & Developmental Biology - Plant. 34:231-239
The most important advantage of cloning conifers by somatic embryogenesis (SE) is that the embryogenic tissue can be cryopreserved without changing its genetic make-up and without loss of juvenility. This offers an opportunity to develop high-value c
Publikováno v:
Wood Science and Technology. 32:215-226
This paper elucidates the need to consider the effect of volume on brittle material strengths when these strengths are used in a strength theory. Specifically, Weibull weakest-link theory has been implemented with the Tsai-Wu strength theory to predi
Publikováno v:
Canadian Journal of Civil Engineering. 24:419-430
An experimental study has been conducted to evaluate the longitudinal shear strength of nominal 38 × 185 mm and 38 × 285 mm Canadian softwood select structural lumber using a two-span five-point bending test procedure with test span to specimen dep
Autor:
Nora J. Jamgotchian, J. D. Barrett, Zesong Zhang, P. Eggena, David B. N. Lee, Ming-Shu Hu, Harry J. Ward
Publikováno v:
Nephrology. 2:s199-s202
Summary: Partial correction of uraemic anaemia restores the baseline hyperkinetic haemodynamics toward normal, reduces left ventricular size and mass and improves exercise tolerance in dialysis patients. These effects may, in large part, be attribute
Publikováno v:
Journal of Materials in Civil Engineering. 7:19-30
A unified size-effect model based on the weakest-link brittle fracture theory has been developed to represent statistical size effects in visually graded structural lumber. Test results from published studies and new results from a comprehensive stud
Publikováno v:
Probabilistic Engineering Mechanics. 10:63-71
This paper discusses a gain factor model for the simulation of correlated stationary material properties of lumber (modulus of elasticity and compressive strength) in standard normalized space. Coupled with trend and multivariate standard normal simu
Autor:
J. D. Barrett, Peter W. C. Lau
Publikováno v:
Fire and Materials. 18:339-349
This paper discusses the application of reliability-based design concepts to the design of light structural framing wood members for fire safety. In reliability-based designs we seek to ensure with high confidence that the member as designed will sur