Relevant bibliographies by topics / Timber quality

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Timber quality'

Author: Grafiati
Published: 4 June 2021
Last updated: 16 February 2022

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Journal articles on the topic "Timber quality"

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Sandhyavitri, Ari, Fakhri Fakhri, Rizki Ramadhan Husaini, Indra Kuswoyo, and Manyuk Fauzi. "Added values of the local timbers materials for main bridge frame structures utilizing laminating composites technology." Journal of Applied Materials and Technology 2, no. 1 (December 4, 2020): 50–58. http://dx.doi.org/10.31258/jamt.2.1.50-58.

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The objectives of this article are to seek the opportunity to enhance the local Indonesia timber material physical performances (encompassing the low-class quality of III and IV timbers with the Modulus of Elasticity (MOE) = 5,000 - 9,000 MPa) utilizing laminated composite technology to become higher-class timber quality (class II) with the Modulus of Elasticity (MOE)> 15,000 MPa so that it can be used as an alternative material for constructing the bridge mainframe structures (girder beams) especially for the Indragiri Hilir regency, Riau Province, Indonesia. This regency needs several hundred small-medium bridges for connecting 20 districts, 39 wards, and 197 villages using local materials such as local timbers. This laminating technology is not a new technology but the utilization of this technology for constructing the main bridges structures is challenging and limited to the implementation in the civil construction industrial sector. This study composed 2 types of the low-class quality (lcq) of timber materials (such as Shorea sp and Shorea peltata Sym) and 2 types of medium class-quality (mcq) ones (Dipterocarpus and Calophyllum) for constructing the main bridge structures. Based on the laboratory test results utilizing 80% of lcq materials and 20% mcq ones, these composite timber materials may increase the timbers MOE by 145% to 166% from the existing MOE value of the mcq solid timbers. Based on the simulations these laminated composites wooden bridge girders 2 x (70x20) m2, these timber materials have passed all the tests and the application of this technology may improve the lcq timber values and it could be used for an alternative material of the bridge girder's main structures.
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Hegde, Nagaraj, Suresh Kumar, Kenyusinlo Khing, and Gopichand B. "Evaluation of Wood Quality of Underutilized Indigenous Timber Species for Reducing Timber Scarcity: A Case of Mizoram, North-East India." Science & Technology Journal 9, no. 1 (January 1, 2021): 36–40. http://dx.doi.org/10.22232/stj.2021.09.01.07.

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Timber demand and supply gap has widened over the last few decades across different regions of the world. Indian scenario is no different. In the last decade though India’s forest cover has increased at a very slow pace, in north eastern part of India, there is a loss of forest cover at an alarming rate. This is a cause of concern for this region which is already depending only on handful of quality timbers for the structural and commercial purposes. Under this scenario, few alternative options should be looked at like exploring promising indigenous fast-growing species, or exploring some lesser-known timber species available naturally in the forest. Therefore, wood quality parameters of such timber species should be tested so as to know the specific utility of these timbers. In this study of Mizoram, wood quality parameters of five underutilized timber species were assessed and three out of five species have shown considerable quality as compared to Teak and many other mainstream species. Few selected properties are highlighted in this paper to indicate possible utility of selected species to reduce the gap in demand and supply of wood as raw material. We focused mainly on anatomical properties, gross features and cell constituents of these species in this paper. The properties observed for lesser-known species are compared with twenty Indian mainstream timbers. The results have indicated that there is a need for further expanding the scope for exploring more such species so that timber requirement of the region is meted out.
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Johansson, Germund, Robert Kliger, and Mikael Perstorper. "Structural Sawn Timber Quality Requirements." Structural Engineering International 3, no. 2 (May 1993): 99–103. http://dx.doi.org/10.2749/101686693780612411.

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Natterer, J. "Quality criteria for timber design." Construction and Building Materials 6, no. 3 (January 1992): 133–37. http://dx.doi.org/10.1016/0950-0618(92)90002-g.

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Höwler, Kirsten, Peter Annighöfer, Christian Ammer, and Dominik Seidel. "Competition improves quality-related external stem characteristics of Fagus sylvatica." Canadian Journal of Forest Research 47, no. 12 (December 2017): 1603–13. http://dx.doi.org/10.1139/cjfr-2017-0262.

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Accurate information on the timber quality of hardwoods is often lacking, in particular for standing trees. In situ measurements of timber quality have the potential to improve the economic yield of a stand and may contribute to the optimal timing of a harvest and, in general, to improving forest management. Here, we used terrestrial laser scanning (TLS) to assess external timber quality metrics nondestructively. We investigated how competition intensity affected the metrics of 118 European beech (Fagus sylvatica L.) trees. We found that two newly developed TLS-based measures of external stem characteristics (number of bark anomalies per metre and stem non-circularity) were affected by competition intensity, suggesting that regulating competition levels may improve timber quality. Our study confirms empirical findings indicating a positive relationship between competition intensity and timber quality of European beech and offers a new methodology to assess external timber quality measures in the field objectively and nondestructively.
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Gren, Ing-Marie, and Franklin Amuakwa-Mensah. "Multifunctional Forestry and Interaction with Site Quality." Forests 11, no. 1 (December 23, 2019): 29. http://dx.doi.org/10.3390/f11010029.

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Several studies have shown the economic value of various ecosystem services provided by the forest. However, the economic value of how site-specific ecological conditions interact with other functions provided by the forest, such as timber value and carbon sequestration, has been less studied. As a result, this paper constructs a numerical discrete dynamic optimization model to estimate the economic value of site quality, taking into account its interaction with timber value and carbon sequestration, in Swedish forests. Analytical results show that the inclusion of the interaction of site quality with forest growth affects the optimal volume of harvest per year, compared to the case without consideration of site quality. The empirical results show that net present value, when considering timber values plus carbon sequestration and site quality interaction, is higher than the case where only timber and carbon sequestration were considered. However, the calculated net present value is sensitive to, in particular, the price of carbon sequestration and discount rate.
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Lencinas, María Vanessa, Guillermo Martínez Pastur, Paola Rivero, and Carlos Busso. "Conservation value of timber quality versus associated non-timber quality stands for understory diversity in Nothofagus forests." Biodiversity and Conservation 17, no. 11 (February 8, 2008): 2579–97. http://dx.doi.org/10.1007/s10531-008-9323-6.

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Milic, Goran, Nebojsa Todorovic, and Ranko Popadic. "Influence of steaming on drying quality and colour of beech timber." Bulletin of the Faculty of Forestry, no. 112 (2015): 83–96. http://dx.doi.org/10.2298/gsf1512083m.

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This paper presents the results of an analysis of influence of the ?light? steaming process on conventional drying and colour of beech timber. A stack consisting of steamed and unsteamed boards was dried. Moisture content and moisture content profiles were recorded, and at the end of drying final moisture content, moisture content difference across thickness, case-hardening and colour were determinated. No statistically significant difference between steamed and unsteamed timber was established in any of the examined parameters (MC, ?MC, gap). The results indicate that equal (or even) better drying quality can be expected with steamed beech timber than with unsteamed timber, given the same drying schedule. Dry steamed timber was darker and more reddish than the unsteamed one. An imprecision of measurement by probes in the kiln was noticed in measuring steamed and unsteamed beech timber having a moisture content of between 7% and 15%, and a solution for overcoming this problem was given.
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Damayanti, Ratih, and Listya Mustika Dewi. "Wood Anatomy and Fibre Quality of the Least Known Timbers Belong to Actinidiaceae from Indonesia." Wood Research Journal 10, no. 2 (July 21, 2020): 33–38. http://dx.doi.org/10.51850/wrj.2019.10.2.33-38.

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Wood anatomy of 417 genera and 86 families belong to the major, minor, and the lesser known timbers of South- East Asia have been studied and described in 3 volumes of PROSEA books. This paper deals with timber species of the least known timbers, which have not been treated in the above mentioned PROSEA books, i.e.: Saurauia bracteosa, S. capitulata., and S. nudiflora from family Actinidiaceae. The objective of this study was to acquire descriptions of their anatomical features and evaluate the quality of their fibres for pulp and paper manufacture. Samples were provided by Xylarium Bogoriense, which were collected from various forest areas in Indonesia. Microscopic features observed comprise all features those listed by IAWA Committee in 1989. Fibre quality was determined based on their dimension and evaluated according to quality classification developed by FPRDC Bogor. The results indicate that identification of timber up to genera level is possible. Fibres of Saurauia spp. fall into quality class I, which means good for pulp and paper. The descriptions of anatomical features were presented. Sauraria have bright color, light yellow to light brown, fine texture, light, smooth to rather rough surface, and make it suitable to substitute ramin (Gonystylus spp.)
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Marenče, Jurij, Bogdan Šega, and Dominika Gornik Bučar. "Monitoring the Quality and Quantity of Beechwood from Tree to Sawmill Product." Croatian journal of forest engineering 41, no. 1 (December 9, 2019): 119–28. http://dx.doi.org/10.5552/crojfe.2020.613.

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The analysis evaluates the potential and methods of the respective assessment of beech trees, beech logs and sawn timber. The objective of the study was to assess the impact of the quality of the incoming raw material (tree) on the quality and quantity of products – obtained at the sawmill. The study presents a model that indicates the relations between the assessment of the quality of a standing beech tree and the quality of the sawmill products obtained from its wood. In addition, relations between individual quality classes of sawlogs, pulpwood, energy wood and sawn timber are shown. Standing trees were assessed in three sites according to the national 5-grade quality scale, assortments produced from selected trees pursuant to the EN 1316-1 standard, and sawn timber produced from assortments according to the rules of the European Organisation of the Sawmill Industry (EOS). In total, 87.04 m3 of timber was harvested. In higher quality trees (quality 1 and 2), the shares of sawlogs were between 53% and 72% of gross tree volume, but in the poorest quality trees, the shares were only between 23% and 36%. What remained was pulp and energy wood. In trees of excellent quality (quality 1), sawlogs of the highest quality prevailed (A and B quality grade), while sawlogs of C and B quality prevailed in trees of lower quality. Covered knots and heart defects were typically the decisive criteria for classifying sawlogs quality in all three sites. A total of 30,786 m3 of unedged timber was sawn from the sawlogs, which comprised 35% of the total gross quantity of trees on average. Nine percent of the sawn timber was classified into the A–EOS class (top quality), 27% into the B–EOS class and 47% into the C–EOS class. Seventeen percent of the timber was only suitable for post-processing. The crucial criteria for classifying sawn timber were as follows: dead and rotten knots, heart, curvature and cracks. Above-average sawlogs (A and B quality grade) was mainly obtained from trees of better quality. Relations between the quality of trees, sawlogs and sawn timber indicated the suitability of classifying standing trees and sawlogs, since it was possible to produce sawn timber of higher quality from quality trees or logs. The model presents a rare attempt to establish and monitor quality and quantity from standing tree to end product.
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Dissertations / Theses on the topic "Timber quality"

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McCurdy, Murray Charles. "Efficient Kiln Drying of Quality Softwood Timber." Thesis, University of Canterbury. Chemical and Process Engineering, 2006. http://hdl.handle.net/10092/1097.

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This thesis is a study of the kiln drying of radiata pine with a primary focus on the change in wood colour that occurs during this process. The energy efficiency of the drying process has also been examined using computer modelling. The aim of this work was to develop guidelines for commercial wood dryers who wish to produce high quality appearance grade timber in a competitive commercial environment. The colour change in radiata pine wood during kiln drying is mainly caused by sap compounds accumulating at the wood surface and reacting to form coloured compounds. The initial research involved drying experiments designed to determine the relationship between this colour change and the kiln schedule and also measure the accumulation of colour forming compounds. The kinetics of the colour change reaction were also measured using two methods, one in-vitro and the other using small samples of wood. From these experiments a colour change equation was developed that predicts the rate of colour formation based on the drying conditions and this was incorporated into a kiln stack model along with an energy efficiency model. The combined model was used to simulate the drying process to find schedules optimised for energy use and wood quality. The model was also used to simulate the energy efficiency of different humidity control configurations for wood drying kilns. A kiln micro-sensor system was also developed for use in kiln diagnostics and control with the particular aim of identifying areas in wood drying kilns with adverse drying conditions. The recommendation to kiln operators wishing to reduce colour change is to not exceed 70? and to use lower relative humidity schedules with a wet bulb depression of 15-20?. Operating at lower humidity can increase the energy used by the kiln so it is also recommended that kiln designers incorporate heat recovery into the humidity control mechanisms of the kiln.
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Wendel, Charlotta. "Multivariate modeling improves quality grading of sawn timber." Thesis, Umeå universitet, Institutionen för fysik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-160765.

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The quality grades are what determines the value of sawn timber. Therefore the grading process is essential for the profitability of a sawmill. At a modern sawmill in northern Sweden, a CT Log Computed Tomography is used in the saw line to optimize the cutting solutions by virtual 3D reconstruction of the log features. By adjusting the position of the log according to the optimal solution before cutting, the aim is to increase the quality and final resale value of the sawn timber. However, measurement errors in the virtual and final grading systems cause inconsistencies that decrease the agreement in grading. The grading process uses a rule-based system based on the Nordic Timber Grading Rules, which depends strongly on the size and shape of knots. If knots are measured incorrectly they could falsely exceed the allowed value for a certain quality, resulting in an inaccurate quality grade. The results from this initial project, show that using multivariate modeling instead of the traditional rule-based grading system improves the agreement between the virtual and final grading. The accuracy in grading increases with up to 19%, resulting in an agreement of 73%. A better agreement between the two systems would allow the process to take advantage of the full potential of the CT, increasing the profitability of the sawmill. The results are promising, but before implementing the method in the sawmill further testing and development have to be done to ensure optimal improvement.
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Petersson, Hans. "Functions for predicting the quality of standing timber in Scots Pine /." Umeå : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 1998. http://epsilon.slu.se/avh/1998/91-576-5343-7.gif.

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Hollabaugh, Eric M. "Field performance of instrumentation for monitoring effects of timber harvesting on water quality." Diss., Columbia, Mo. : University of Missouri-Columbia, 2006. http://hdl.handle.net/10355/4541.

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Thesis (M.S.) University of Missouri-Columbia, 2006.
The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on August 23, 2007) Includes bibliographical references.
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Höwler, Kirsten [Verfasser]. "Influence of intra- and interspecific competition on timber quality of European beech / Kirsten Höwler." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2021. http://d-nb.info/1225556007/34.

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Meade, Gregory S. "An evaluation of timber harvest planning training on logging quality in the Virginia Piedmont." Thesis, Virginia Tech, 1996. http://hdl.handle.net/10919/44970.

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Interest in BMP-related logger education and training has increased dramatically in recent years. Harvest planning is a critical component of forestry water quality BMPs. All states’ BMP manuals recommend written timber harvest plans, and several states require them by law. The objective of this study was to evaluate the impact of harvest planning training and the use of written timber harvest plans on BMP compliance, landowner satisfaction and weather-related downtime in the Virginia Piedmont. Nine randomly chosen loggers (study group) from the Virginia Piedmont participated in two days of intensive harvest planning field training. Nine additional loggers were randomly chosen as a control group. Study loggers prepared and followed written timber harvest plans for the 29 tracts they harvested during the 8-month study period immediately following the training. Study Group loggers outperformed Control Group loggers for mean BMP compliance (90% vs. 86%), mean landowner satisfaction (3.54/4.0 vs. 3.27/4.0), and mean weather-related downtime (10% vs. 13%). Absolute scores for all evaluation criteria for both groups were good, and differences, though statistically significant, were relatively small, leading to conclusions that: • Loggers in the Virginia Piedmont are generally doing a good job. • Loggers in the Virginia Piedmont are planning their operations, whether a written plan is required or not. • Harvest planning training and written harvest plans can marginally improve BMP compliance, landowner satisfaction and weather-related downtime, even for loggers who are already performing well.
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Maycock, Keith Michael. "The assessment of surface quality in planed and spindle moulded products." Thesis, De Montfort University, 1993. http://hdl.handle.net/2086/4088.

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Rust, Stephanus Marthinus. "Classification of timber from Pinus radiata trees exposed to forest fires." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/98097.

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Thesis (MSc)--Stellenbosch University, 2015.
ENGLISH ABSTRACT: This study aimed to classify wood from trees that were exposed to forest fires with regards to their end use. Exposure to high temperatures over time is known to degrade wood in various ways. This degradation could limit the end use by altering mechanical, chemical and physical properties, leading to difficulty in processing or failing to meet required specifications for various grades. In this study wood from Pinus radiata trees that were exposed to forest fires of different levels of heat intensity was analysed with regards to its anatomical and physical changes. Trees were visually classified into three classes of burn severity. Moisture content measurements were taken from 135 standing trees, divided among the three classes. 30 trees, 10 from each of the three classes, were sampled and used for CT analysis. Samples were taken to include growth from before and after the fire. Two samples were taken from each tree, one from the charred and one from the uncharred side. The CT data was analysed and used to measure properties like growth ring width, cell wall thickness, lumen diameter and cell wall density. The data was used to compare properties from the charred and uncharred sides within a given year, as well as compare properties between years. The study showed that there were significant differences in the MC between the burnt and unburnt sides of trees from classes 2 and 3. The difference between the MC measurements on the burnt sides of three classes differed significantly from each other. Lightness measurements were taken on samples from classes 2 and 3. These samples showed no significant difference between the burnt and unburnt sides for either of the two classes. The samples from the less exposed class were lighter, but not significantly so. The macroscopic wood density was determined using core samples. A decrease in wood density was observed with an increase in fire exposure. The mean densities for all three classes however still fulfilled the requirements for structural timber set by the SABS. Growth ring width, cell wall thickness and lumen diameter analysis gave varied results, with some cases showing a decline in properties while others were seemingly unaffected. For many of the outcomes of this study, results found by previous studies could not be reproduced.
AFRIKAANSE OPSOMMING: Hierdie studie het gepoog om bome wat aan plantasiebrande blootgestel is volgens hul eindgebruik te klassifiseer. Dit is bekend dat blootstelling aan hoë tempreature hout in vele maniere afbreuk. Hierdie afbreuking kan die eindgebruik van die hout beperk deur die meganiese, fisiese en chemiese eienskappe sodanig te verander dat dit kan lei tot probleme met verwerking of ongeskiktheid vir sterktegrade. In hierdie studie is Pinus radiata bome wat aan plantasiebrande van verskillende grade blootgestel is ondersoek in terme van hul fisiese en anatomiese veranderinge. Bome is visueel in drie klasse van verskillende brandskade gegroepeer. Voglesings is op 135 staande bome, verdeel tussen die drie klasse, geneem. Monsters is van 30 bome, 10 uit elke klas, geneem vir CT analiese. Monsters is so geneem dat dit groei van voor en na die brand ingesluit het. Daar is twee monsters van elke boom geneem, een van die gebrande en een van die ongebrande kant. Die CT data is geanalieseer en gebruik om eienskappe soos jaarringwydte, selwanddikte, lumendiameter en selwand digtheid te meet. Die data is gebruik om eienskappe tussen die gebrande en ongebrande kante, sowel as tussen jare te vergelyk. Die studie het gewys dat daar noemenswaardige verskille is tussen die voginhoud van die gebrande en ongebrande kante van bome uit klasse 2 en 3. Die voginhoud van die gebrande kante van al drie klasse verkil ook noemenswaardig van mekaar. Ligtheidmetings is gedoen op monsters van klasse 2 en 3. Die monsters het nie ‘n noemenswaardige verskil tussen die gebrande en ongebrande kante getoon nie. Alhoewel die klas 2 monsters ligter vertoon het as die klas 3 monsters, was die verskil nie betekenisvol nie. Houtdigtheid is bepaal deur fisiese metings op die monsters wat vir die CT skandering gebruik is te doen. ‘n Daling in digtheid met ‘n toename in blootstelling aan die brand het duidelik na vore gekom. Die digtheid is egter nog hoog genoeg om aan die vereistes vir strukturele hout te voldoen, soos die die SABS bepaal. Jaarringwydte, selwanddikte en lumen diameter het wisselende resultate opgelewer, met sommige gevalle wat ‘n afname in eienskappe wys en ander wat ooglopend onveranderd was. Vir vele van hierdie uitkoms kon die resultate van vorige studies nie bevestig word nie.
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Mutabaruka, Celestin. "Investigation of factors affecting sweet chestnut (Castanea sativa Mill.) timber quality in relation to shake defect." Thesis, Imperial College London, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.427822.

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Luca, Matthieu. "Quality Timber Strength Grading : A prediction of strength using scanned surface grain data and FE-analyses." Thesis, Linnéuniversitetet, Institutionen för teknik, TEK, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-14037.

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Books on the topic "Timber quality"

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Carpenter, Roswell D. Defects in hardwood timber. Washington, DC: U.S. Dept. of Agriculture, Forest Service, 1989.

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Appanah, S. Planting quality timber trees in peninsular Malaysia: A review. Kepong, Kuala Lumpur, Malaysia: Forest Research Institute Malaysia, 1993.

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Hauer, F. Richard. The effect of timber management on stream water quality. Kalispell, Mont. (723 5th Ave. E., Kalispell 59901): Flathead Basin Commission, 1991.

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Milner, A. M. Timber harvest and water quality in Alaska: Final report. Anchorage, AK (707 A St., Anchorage 99501): Arctic Environmental Information and Data Center, 1991.

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Benson, Robert Earl. Attaining visual quality objectives in timber harvest areas--landscape architects' evaluation. [Ogden, Utah]: U.S. Dept. of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station, 1985.

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Benson, Robert Earl. Attaining visual quality objectives in timber harvest areas--landscape architects' evaluation. Ogden, UT: U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, 1985.

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Benson, Robert Earl. Attaining visual quality objectives in timber harvest areas--landscape architects' evaluation. Ogden, UT: U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, 1985.

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Wieland, Robert C. Valuing timber and carbon sequestration in Maryland using MD-GORCAM. Annapolis, Md: Maryland Department of Natural Resources, 2008.

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Southern, Plantation Wood Quality Workshop (1989 Athens Ga ). Proceedings of Southern Plantation Wood Quality Workshop: A workshop on management, utilization, and economics of the South's changing pine resource. Asheville, NC (P.O. Box 2680, Asheville 28802): Southeastern Forest Experiment Station, 1990.

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International Conference on Quality Timber Products of Teak from Sustainable Forest Management (2003 Kerala Forest Research Institute). Quality timber products of teak from sustainable forest management: Proceedings of the International Conference on Quality Timber Products of Teak from Sustainable Forest Management, Peechi, India, 2-5 December 2003. Edited by Bhat K. M. 1950-, Kerala Forest Research Institute, International Tropical Timber Organization, and International Union of Forest Research Organizations. Peechi, India: Kerala Forest Research Institute, 2005.

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Book chapters on the topic "Timber quality"

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Franke, Bettina, Florian Scharmacher, and Andreas Müller. "Assessment of the Glue-Line Quality in Glued Laminated Timber Structures." In Materials and Joints in Timber Structures, 395–403. Dordrecht: Springer Netherlands, 2014. http://dx.doi.org/10.1007/978-94-007-7811-5_36.

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Rose, Dietmar W., and Syed A. Husain. "Shadow Pricing Trade-Offs between Timber Supply and Environmental Quality." In Assessment of Biodiversity for Improved Forest Planning, 111–19. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-015-9006-8_11.

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Mujawamariya, G., K. Burger, and M. D’Haese. "11. Quality management in supply chains of non-timber forest products: the case of gum arabic in Senegal." In Quality and innovation in food chains, 237–54. The Netherlands: Wageningen Academic Publishers, 2016. http://dx.doi.org/10.3920/978-90-8686-825-4_11.

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bin Khalid, Kaida, Jumiah Hassan, Zulkifly Abbas, and Mohd Hamami. "Microwave Dielectric Properties of Hevea Rubber Latex, Oil Palm Fruit and Timber and Their Application for Quality Assessment." In Electromagnetic Aquametry, 467–90. Berlin, Heidelberg: Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/3-540-26491-4_20.

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van Leeuwen, Theo. "Voice quality and timbre." In Speech, Music, Sound, 125–55. London: Macmillan Education UK, 1999. http://dx.doi.org/10.1007/978-1-349-27700-1_6.

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Lemaitre, Guillaume, and Patrick Susini. "Timbre, Sound Quality, and Sound Design." In Timbre: Acoustics, Perception, and Cognition, 245–72. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-14832-4_9.

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Dator, Jim. "Universities Without “Quality” and Quality Without “Universities”." In Jim Dator: A Noticer in Time, 293–313. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-17387-6_25.

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Muha, Thomas M., and Martha Murphy. "Modern Times in Healthcare: From the C-Suite to the Bedside." In PROPEL to Quality Healthcare, 3–12. Boca Raton : Taylor & Francis, 2018. | “A CRC title, part of the Taylor & Francis imprint, a member of the Taylor & Francis Group, the academic division of T&F Informa plc.”: Productivity Press, 2017. http://dx.doi.org/10.4324/9781315116846-2.

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Lynch, James J. "Time Shaping for Quality." In Time Shaping for Business Success, 106–25. London: Palgrave Macmillan UK, 1995. http://dx.doi.org/10.1057/9780230373808_6.

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Henzinger, Thomas A., and Orna Kupferman. "From quantity to quality." In Hybrid and Real-Time Systems, 48–62. Berlin, Heidelberg: Springer Berlin Heidelberg, 1997. http://dx.doi.org/10.1007/bfb0014712.

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Conference papers on the topic "Timber quality"

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Vavrusova, Kristyna, and Libor Zidek. "Semi Destructive Methods for Timber Structures Quality Assessment." In International Conference on Education, Management, Computer and Society. Paris, France: Atlantis Press, 2016. http://dx.doi.org/10.2991/emcs-16.2016.335.

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Zhu, Yu-jie, and Yang Li. "Qcc in lumber industry timber production quality improvement application." In EM2010). IEEE, 2010. http://dx.doi.org/10.1109/icieem.2010.5646483.

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Hittawe, Mohamad Mazen, Désiré Sidibé, and Fabrice Mériaudeau. "A machine vision based approach for timber knots detection." In The International Conference on Quality Control by Artificial Vision 2015, edited by Fabrice Meriaudeau and Olivier Aubreton. SPIE, 2015. http://dx.doi.org/10.1117/12.2182770.

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Ahmad, Arslan, Alessandro Floris, and Luigi Atzori. "Timber: An SDN based emulation platform for QoE Management Experimental Research." In 2018 Tenth International Conference on Quality of Multimedia Experience (QoMEX). IEEE, 2018. http://dx.doi.org/10.1109/qomex.2018.8463387.

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Carratu, Marco, Vincenzo Gallo, Consolatina Liguori, Antonio Pietrosanto, Mattias O'Nils, and Jan Lundgren. "A CNN-based approach to measure wood quality in timber bundle images." In 2021 IEEE International Instrumentation and Measurement Technology Conference (I2MTC). IEEE, 2021. http://dx.doi.org/10.1109/i2mtc50364.2021.9459906.

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Kromoser, Benjamin, and Matthias Braun. "Towards efficiency in constructive timber engineering - design and optimization of timber trusses." In IABSE Congress, New York, New York 2019: The Evolving Metropolis. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2019. http://dx.doi.org/10.2749/newyork.2019.1141.

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Abstract:
<p>Currently, laminated timber is widely used. The gluing allows for higher part length and involves an advantageous behavior regarding deformations due to shrinkage and lead to better, more regular mechanical properties. The drawback is a low material utilization factor. Starting from a tree trunk, only 25-30 % are part of the final product. Thus, the high-quality product has to be used as efficient as possible.</p><p>At moment mostly, plate girders made of laminated timber are used as a result of the efficient industrialized manufacturing process. If in comparison a truss system is used, a similar load bearing capacity and stiffness can be achieved with much less material effort. The aim of the authors is to industrialize the design and manufacturing process of timber truss systems to be able to compete with the common plate girder systems. The complete process starting from the design, static optimization, work preparation to production process will be cumulated in a continuous digital approach. The paper describes the research approach and experiments about the digital production (by use of a robot arm) and load bearing behavior of different wood- wood connections as first development step. In addition, the design of 1:1 load tests at different timber trusses as well as comparable plate girders is presented.</p>
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Zimelis, Agris, Andis Lazdiņš, and Andis Ābele. "The impact of feed rollers on the quality of timber in the manufacturing of posts." In Research for Rural Development, 2017. Latvia University of Agriculture, 2017. http://dx.doi.org/10.22616/rrd.23.2017.015.

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Sanabria, S. J., R. Furrer, J. Neuenschwander, P. Niemz, and U. Sennhauser. "Air-coupled ultrasound wave propagation in glued laminated timber structures applied to bonding quality assessment." In 2010 IEEE Ultrasonics Symposium (IUS). IEEE, 2010. http://dx.doi.org/10.1109/ultsym.2010.5935552.

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Abram DaSilva, Y. Jun Xu, John Beebe, and George G Ice. "Dissolved oxygen analysis of a northern Louisiana headwater stream during timber harvesting operations." In TMDL 2010: Watershed Management to Improve Water Quality Proceedings, 14-17 November 2010 Hyatt Regency Baltimore on the Inner Harbor, Baltimore, Maryland USA. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2010. http://dx.doi.org/10.13031/2013.35730.

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Kristopher R Brown, Yi-Jun Xu, and Daniel L Thomas. "Implications of Streamflow Changes Following Timber Harvesting for TMDL Development in Low-Gradient Forested Headwaters." In TMDL 2010: Watershed Management to Improve Water Quality Proceedings, 14-17 November 2010 Hyatt Regency Baltimore on the Inner Harbor, Baltimore, Maryland USA. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2010. http://dx.doi.org/10.13031/2013.35753.

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Reports on the topic "Timber quality"

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Dykstra, Dennis P., and Robert A. Monserud. Forest growth and timber quality: crown models and simulation methods for sustainable forest management. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, 2009. http://dx.doi.org/10.2737/pnw-gtr-791.

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Weigand, James F. Management experiments for high-elevation agroforestry systems jointly producing matsutake mushrooms and high-quality timber in the Cascade Range of southern Oregon. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, 1998. http://dx.doi.org/10.2737/pnw-gtr-424.

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Zhao, Hongwei, and David Oakes. Statistical Inference for Quality-Adjusted Survival Time. Fort Belvoir, VA: Defense Technical Information Center, August 2004. http://dx.doi.org/10.21236/ada437896.

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Zhao, Hongwei. Statistical Inference for Quality-Adjusted Survival Time. Fort Belvoir, VA: Defense Technical Information Center, July 2006. http://dx.doi.org/10.21236/ada456901.

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Wagner, R. M., and K. Sisken. Real-Time Control of Diesel Combustion Quality. Office of Scientific and Technical Information (OSTI), June 2010. http://dx.doi.org/10.2172/983054.

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Rivkin, Steven, and Jeffrey Schiman. Instruction Time, Classroom Quality, and Academic Achievement. Cambridge, MA: National Bureau of Economic Research, September 2013. http://dx.doi.org/10.3386/w19464.

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Zhao, Hongwei, and David Oakes. Statistical Inference for Quality-Adjusted Survival Time. Fort Belvoir, VA: Defense Technical Information Center, August 2003. http://dx.doi.org/10.21236/ada420329.

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Im, Hyunjoo, and Young Ha. Can Visual Quality of Websites Affect Time Perception? Ames: Iowa State University, Digital Repository, November 2015. http://dx.doi.org/10.31274/itaa_proceedings-180814-1172.

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Burns, Marguerite, and John Mullahy. Healthy-Time Measures of Health Outcomes and Healthcare Quality. Cambridge, MA: National Bureau of Economic Research, August 2016. http://dx.doi.org/10.3386/w22562.

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Siddiqui, A., D. Romascanu, and E. Golovinsky. Real-time Application Quality-of-Service Monitoring (RAQMON) Framework. RFC Editor, October 2006. http://dx.doi.org/10.17487/rfc4710.

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