wood and fiber science impact factor
Operations Research. The analysis was made at family level, and each family comprised four individual trees. The pulping properties varied between the three families analyzed at two sites.
A series of models were developed to predict internal features using visible external features, log diameter, indicator width, length, and rise.
A water-soluble polycarboxylic acid (PCA) resin was assessed for ability to limit moisture swelling of densified wood. The colonization of this fungus on softwood chips was also improved as a result of compression. In our study, wood was impregnated with 19.5% sodium silicate and acidified with 2.5% phosphoric acid for 2 da to produce polysilicic acid. Issues per year n/a Articles published last year n/a Manuscripts received last year n/a % accepted last year n/a % immediately rejected last year n/a Open access status n/a Manuscript handling fee? SORTING LUMBER BY PITH AND ITS EFFECT ON STIFFNESS AND STRENGTH IN SOUTHERN PINE NO. With these optimizations, average lumber value recovery could be increased by 10.01% using the heuristic algorithm or 14.21% using the dynamic programming algorithm. Nano-technology- Analytical methods including environmental scanning electron microscopy (ESEM), energy dispersive X-ray analysis (EDXA), X-ray photoclectron spectroscopy (XPS), X-ray diffraction (XRD), inductively coupled plasma (ICP), and atomic absorption spectroscopy (AAS) were used to study CDDC-treated wood. The sites of copper and zinc adsorption within the treated wood and the bonding environment of adsorbed copper were also examined.
The water-soluble cationic polyDADMAC [poly(diallydimethylammonium chloride)] and nonionic PEO (polyethylene oxide) have no significant effect on the wettability of wood fibers in aqueous solutions. The experimental approach included shear force applications in planes parallel to the grain so that the annual ring orientation and the orientation of the grain relative to the applied force direction were systematically rotated. This research is important to structural engineers and code groups respon-sible for the safe design of wood structures when establishing new design criteria for load duration and deflection limits. The cutting bill validation was canied out in two ways. Tracheids were longer for the slow-grown trees after first thinning; although constant in sign and magnitude over years, the difference in mean tracheid length between growth categories was not statistically significant. In summary, increasing the growth rate in circumference of Norway spruce from 1.7 to 2.7 cm/year by heavy thinnings induced a limited decrease in wood density and mean tracheid length. Subjects are wood biology and wood quality, wood physics and physical technologies, wood chemistry and chemical technologies. Composite lumber is more sensitive than solid-sawn to change in strength due to thermal degradation. However, dynamic mechanical analysis further suggested that PCA resin acts as a cross-linking agent to stabilize the position of the collapsed cell walls.
The total effect of temperature on MOR can be estimated by adding the reversible plus the permanent effects. Reduction in the sorptive behavior as a result of thermal degradation is proposed as a possible explanation for differences in EMC behavior for juvenile and mature wood at 160°C. 2010 Status quo for life cycle inventory and environmental impact assessment of wood-based panels products in Germany.
Since the data were chronologies (i.e., time series of yearly measurements), time had to be considered as a factor (i.e., the calendar year of ring formation) in the statistical analysis of the within-tree variation (repeated measures analysis of variance). The results established that temperature and moisture content did not affect the nonlinear strain function at strain levels lower than 0.63. Wood and fiber science : CODEN : WFSCD : Languages : English : First year : 1983: Impact factor : 0.79 The information obtained and the models developed might be used to explore the shear strength of structural composites in which the constituents are systematically or randomly aligned. For fire protection, treatments at 160 or 190°C led to low flammability as evidenced by fire-tube tests.
Development of a 3D log sawing optimization system for small sawmills in central appalachia, US. It measures the scientific influence of the average article in a journal, it expresses how central to the global scientific discussion an average article of the journal is. There was a significant difference in growth rate (expressed as mean annual ring width) between the two sites, and trees grew faster at Lac St-Ignace site compared to Valcartier site. After almost 6 years of exposure, SPF retained about 67% MOR and LVL 26% to 49%. Samples of three wood species, red maple (Acer rubrum L.), ponderosa pine (Pinus ponderosa Dougl. The first two parts of this series (Fridley et al. First, all 20 of the cutting bill's part groups were examined to determine if siboniflcant yield influences resulted fiom chang- ing specific part sizes within the boundaries of a given part group. How to publish in this journal .
Thus, the new model has the potential to help wood products manufacturers decrease their material and processing costs. 1996a, b) presented a comprehensive experimental and analytical duration of load (DOL) study of Purdue University's Peirce Hall, an 85-year-old, turn-of-the-century building razed in 1989. In general, fungal survival was not affected 1 week after chemical treatment. Reliability study. Of the materials identified, sulfur was the most abundant nonvolatile product in wood mixtures and may play a role in long-term wood protection. Tests were conducted to determine the effect of ACZA composition on fixation and the roles of adsorption and precipitation in fixation. Solid-sawn lumber, laminated veneer lumber (LVL), and laminated strand lumber (LSL) were heated continuously for up to 6 years. Irreversible thickness swell decreased with increasing PCA content, while reversible thickness swell remained relatively constant. Investigation of OSB thickness-swell based on a 3D density distribution. By the same comparison, relative creep was considerably increased, however. Data Source: Scopus®, Metrics based on Scopus® data as of April 2020. Phenol-type extractives were higher below the girdle in maple. Lumber grade was improved significantly by using the optimal algorithms. Creating a standardized and simplified cutting bill using group technology. The part group matrix approach allows parts to be clustered within given size ranges to one part group midpoint value without changing cut-up yield beyond set limits. Furthermore, interaction between these two factors was detected.
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