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Dissertations / Theses on the topic 'Wood Moisture Content'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Vikberg, Tommy. "Moisture content measurement in the wood industry." Licentiate thesis, Luleå tekniska universitet, Träteknologi, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-18148.

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In the wood industry, determination of the moisture content (mc) with a highaccuracy is of great importance. The green mc is important for optimisation of thewood drying process at sawmills, whereas the mc of dried boards is of interest for thefurther processing and final use of the boards. In the first publication in this thesis,which is a technical report written in Swedish, different measuring techniques withtheir own pros and cons are discussed. A total of 13 different measurement principlesare discussed, focusing on the ability to measure mc in the range of 7-18%. The resultsuggests that

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2

Hague, James R. B. "Effect of moisture content changes on wood creep." Thesis, Bangor University, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.358374.

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3

Mugabi, Paul. "Moisture content and drying defects in kiln-dried Eucalyptus grandis poles." Thesis, Stellenbosch : Stellenbosch University, 2007. http://hdl.handle.net/10019.1/4575.

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Thesis (PhD (Forest and Wood Science))--Stellenbosch University, 2007.<br>ENGLISH ABSTRACT: There has been a reported reduction in the durability of creosote treated, wooden utility poles in South Africa in recent years. Several factors could have been responsible for this. In this study, Eucalyptus grandis pole drying schedules currently used, methods of measurement of moisture content (MC) after drying and drying defects were investigated. Relationships involving drying defects and MC gradient before treatment which may help in the development of simple nondestructive methods of assessi

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4

Rosenkilde, Anders. "Moisture content profiles and surface phenomena during drying of wood." Doctoral thesis, KTH, Civil and Architectural Engineering, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3456.

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<p>Timber drying is one of the most important processes whenmanufacturing sawn timber products. The drying processinfluences deformations, surface checking, discoloration andhence, the product quality and the manufacturing costs.Research in this field is of great importance for the woodindustry since the industrial drying process always needs to beimproved as market demands increases and new wood products aredeveloped.</p><p>The aim of the present thesis was to investigate themoisture transport behaviour in wood based on measurementsduring drying from fresh condition down to end use moistureco

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5

van, Dyk Hermanus H. "Ultrasonic Evalutation of Defects and Moisture Content of Lumber." Fogler Library, University of Maine, 2004. http://www.library.umaine.edu/theses/pdf/vanDykHH2004.pdf.

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6

Chen, Zhangjing. "Measurement of wood moisture content above fiber saturation point by electrical resistance." Thesis, This resource online, 1993. http://scholar.lib.vt.edu/theses/available/etd-11102009-020203/.

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7

Lenth, Christopher Allen. "Wood Material Behavior in Severe Environments." Diss., Virginia Tech, 1999. http://hdl.handle.net/10919/28826.

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An improved knowledge of wood material behavior in hot-pressing environments can provide the benefit of an increased understanding of material properties during the manufacture of wood-based composites as well as insight into the development of new processes and products which manipulate the viscoelastic nature of wood. Two specific areas where additional knowledge is needed are: the high temperature equilibrium moisture content (EMC) behavior and the moisture dependent softening behavior. EMC data was collected and desorption isotherms were generated for mature and juvenile wood of aspen,

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8

Koski, A. (Anna). "Applicability of crude tall oil for wood protection." Doctoral thesis, University of Oulu, 2008. http://urn.fi/urn:isbn:9789514287237.

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Abstract Moisture content control is a very effective way of protecting timber. Treatments with environment-friendly, biodegradable tall oil are known to reduce the capillary water uptake of pine sapwood greatly, but despite the good results achieved there have been two problems that limit the use of tall oil for wood protection, the large amount of oil needed and the tendency for the oil to exude from the wood. This work was undertaken in order to obtain an understanding of the mechanism of wood protection by means of crude tall oil (CTO) and to find technical solutions to the main problems l

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9

Lundgren, Nils. "Modelling microwave measurements in wood /." Luleå, 2005. http://epubl.luth.se/1402-1757/2005/61.

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10

Kazemi, Sheikh Shabani Seyed Mahmoud. "A study of the physiology of wood inhabiting fungi with regard to oxygen potential and moisture content." Thesis, University of London, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.266062.

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11

Merlan, Maria. "Study and realization of a microwaves system to estimate the moisture content in wood biomass." Thesis, Paris 6, 2016. http://www.theses.fr/2016PA066154/document.

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Le réchauffement climatique est l'un des principaux problèmes de ce siècle. Les politiques européennes soutiennent le développement des énergies renouvelables afin d'atteindre, d'ici 2020, l'objectif fixé par l'Union Européenne (UE). Ce dernier stipule que 20% de l'énergie produite devra provenir d'une source renouvelable. La combustion de la biomasse sous forme de bois est la plus importante des ressources renouvelables. Par conséquent, le développement de celle-ci est fondamental pour atteindre l'objectif de l'UE. Les plaquettes forestières sont des morceaux de bois déchiquetés. Elles présen

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12

Merlan, Maria. "Study and realization of a microwaves system to estimate the moisture content in wood biomass." Electronic Thesis or Diss., Paris 6, 2016. https://accesdistant.sorbonne-universite.fr/login?url=https://theses-intra.sorbonne-universite.fr/2016PA066154.pdf.

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Le réchauffement climatique est l'un des principaux problèmes de ce siècle. Les politiques européennes soutiennent le développement des énergies renouvelables afin d'atteindre, d'ici 2020, l'objectif fixé par l'Union Européenne (UE). Ce dernier stipule que 20% de l'énergie produite devra provenir d'une source renouvelable. La combustion de la biomasse sous forme de bois est la plus importante des ressources renouvelables. Par conséquent, le développement de celle-ci est fondamental pour atteindre l'objectif de l'UE. Les plaquettes forestières sont des morceaux de bois déchiquetés. Elles présen

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13

Necibi, Semi. "Role of Monochamus carolinensis (Coleoptera: Cerambycidae) and wood moisture content in the regulation of Bursaphelenchus xylophilus (Nematoda: Aphelenchoididae) dispersal stage formation /." free to MU campus, to others for purchase, 1996. http://wwwlib.umi.com/cr/mo/fullcit?p9737902.

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14

Wild, Martha Patricia. "A mechanistic study of VOC and moisture emissions from small softwood pieces." Diss., Georgia Institute of Technology, 2000. http://hdl.handle.net/1853/7070.

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15

Zauer, Mario, Frank Meissner, Rudolf Plagge, and André Wagenführ. "Capillary pore-size distribution and equilibrium moisture content of wood determined by means of pressure plate technique." De Gruyter, 2016. https://tud.qucosa.de/id/qucosa%3A38475.

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This paper deals with the determination of the capillary pore-size distribution (CPSD) and equilibrium moisture content (EMC) of untreated and thermally modified (TM) Norway spruce [Picea abies (L.) Karst.] by means of the pressure plate technique (PPT). Desorption experiments were conducted at very high values of relative humidity (RH) in the range between 99.2% and 100%. The thermal modification of spruce results in an alteration of the CPSD, owing to the formation of intercellular cracks in the middle lamella, as a result of cell-wall compression. The desorption curves for both untreated an

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16

Woxblom, Lotta. "Warp of sawn timber of Norway spruce in relation to end-user requirements : quality, sawing pattern and economic aspects /." Uppsala : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 1999. http://epsilon.slu.se/avh/1999/91-576-5860-9.pdf.

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17

Ermeydan, Mahmut Ali. "Wood cell wall modification with hydrophobic molecules." Phd thesis, Universität Potsdam, 2014. http://opus.kobv.de/ubp/volltexte/2014/7132/.

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Wood is used for many applications because of its excellent mechanical properties, relative abundance and as it is a renewable resource. However, its wider utilization as an engineering material is limited because it swells and shrinks upon moisture changes and is susceptible to degradation by microorganisms and/or insects. Chemical modifications of wood have been shown to improve dimensional stability, water repellence and/or durability, thus increasing potential service-life of wood materials. However current treatments are limited because it is difficult to introduce and fix such modificati

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18

Tangirala, Phani. "DEVELOPMENT AND VALIDATION OF A SPECIAL PURPOSE SENSOR AND PROCESSOR SYSTEM TO CALCULATE EQUILIBRIUM MOISTURE CONTENT OF WOOD." UKnowledge, 2005. http://uknowledge.uky.edu/gradschool_theses/256.

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Percent Moisture Content (MC %) of wood is defined to be the weight of the moisture in the wood divided by the weight of the dry wood times 100%. Equilibrium Moisture Content (EMC), moisture content at environmental equilibrium is a very important metric affecting the performance of wood in many applications. For best performance in many applications, the goal is to maintain this value between 6% and 8%. EMC value is a function of the temperature and the relative humidity of the surrounding air of wood. It is very important to maintain this value while processing, storing or finishing the wood

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19

Vikberg, Tommy. "Industrial Wood Drying : Airflow Distribution, Internal Heat Exchange and Moisture Content as Input and Feedback to the Process." Doctoral thesis, Luleå tekniska universitet, Träteknologi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-26339.

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At a sawmill, the most energy demanding process is the wood drying. The drying process also has a great impact on quality parameters determined for the boards in the final sorting and thereby affects the sales value to a great extent. The objective of the work described in this compilation thesis was to find ways to improve the industrial wood drying process through better input, feedback and process itself. As input and feedback to the drying process, ways to improve the accuracy in estimating the moisture content (MC) was investigated. For the drying process itself, an investigation of the a

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20

Rodrigues, Waldemir. "Determinação do teor de umidade em madeiras por meio de medidores elétricos." Universidade de São Paulo, 1999. http://www.teses.usp.br/teses/disponiveis/88/88131/tde-16092016-111220/.

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A madeira quando seca é um excelente isolante elétrico, porém quando a umidade da madeira aumenta, essa característica diminui fazendo com que esta passe a conduzir a corrente elétrica. A determinação do teor de umidade permite um controle do custo de produção e qualidade da madeira, além de facilitar a utilização de tratamentos preservativos e pintura. O método de determinação do teor de umidade com o uso de estufa é o método mais exato, e por esta razão é utilizado como padrão para calibrar outras técnicas. Por outro lado, a verificação do teor de umidade por meio da estufa é muito demorado

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21

Persson, Erik. "Storage of spruce pulpwood : effects on wood and mechanical pulp /." Uppsala : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 2001. http://epsilon.slu.se/avh/2001/91-576-6090-5.pdf.

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22

Logsdon, Norman Barros. "Influência da umidade nas propriedades de resistência e rigidez da madeira." Universidade de São Paulo, 1998. http://www.teses.usp.br/teses/disponiveis/18/18134/tde-21122017-121822/.

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A norma brasileira para o projeto de estruturas de madeira foi alterada, recentemente, abandonando o método determinista das Tensões Admissíveis e adotando o método probabilista dos Estados Limites. Seguindo tendência mundial, a atual norma brasileira, estabelece um teor de umidade de referência de 12%, no qual devem ser reportados os resultados dos ensaios. Dificilmente se conseguirá condicionar, a madeira para o ensaio, com um teor de umidade de exatamente 12%, portanto, será necessário corrigir os resultados do ensaio para este teor de umidade. A atual norma brasileira propõe expressões, pa

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23

Forsberg, Daniel. "Warp, in particular twist, of sawn wood of Norway spruce (Picea abies) /." Uppsala : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 1999. http://epsilon.slu.se/avh/1999/91-576-5853-6.pdf.

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24

Antoniadis, Antonios. "Moisture calibration of an R.F based inline moisture sensor : An inline moisture sensor based on radio wave attenuation, Microtec M3 Scan, was calibrated to maximise correlation between real water content in wood and received signal." Thesis, Luleå tekniska universitet, Träteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-77359.

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Sensors based on radio waves are used for inline moisture determination in the sawn wood industry. Placed at the final sorting line such a device can be invaluable, giving the operators real time information on the moisture content of the boards passing through. Information that can then be used to improve process control both upstream and downstream. The equipment must first be trained to correlate radio wave attenuation and phase shift to water conten

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25

Moreno, Chan Julian. "Moisture content in radiata pine wood : implications for wood quality and water-stress response : a thesis submitted in fulfilment of the requirements for the degree of Doctor of Philosophy in Forestry, School of Forestry, College of Engineering, University of Canterbury /." Thesis, University of Canterbury. School of Forestry, 2007. http://hdl.handle.net/10092/1217.

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This thesis studied the influence of moisture content on the dynamic estimation of stiffness in wood of Pinus radiata D. Don. This is an important non-destructive measure for estimation of stiffness in standing trees, logs and lumber. Moisture content affects both acoustic velocity and density in the fundamental equation of dynamic MOE (DMOE = V²ρ, where V = acoustic velocity and ρ = density). Investigation included measurements with boards in the laboratory considering moisture contents below and above FSP as well as temperatures below and above 0°C. This also included field measurements of t

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26

Luiz, Mariangela Gonçalves. "Medição da umidade no sistema concreto-madeira." Universidade de São Paulo, 2005. http://www.teses.usp.br/teses/disponiveis/11/11150/tde-11112005-164626/.

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A aplicação de um piso de madeira maciça sobre um contrapiso de concreto dá origem a um sistema que une dois materiais com diferentes características higroscópicas, e no qual a movimentação da umidade é ainda um fenômeno pouco conhecido. Visando um melhor entendimento desse fenômeno, a presente pesquisa buscou avaliar diferentes equipamentos para medir o teor de umidade do concreto, desenvolver uma metodologia para quantificar a água evaporável presente no substrato mineral e, a partir desses resultados, sugerir o teor de umidade do substrato mais adequado à aplicação de um revestimento de ma

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27

Godoy, Laura Barbosa Lima Nascimbem de. "Determinação de parâmetros de qualidade em madeira utilizando espectroscopia no infravermelho próximo e calibração multivariada." [s.n.], 2010. http://repositorio.unicamp.br/jspui/handle/REPOSIP/249306.

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Orientador: Ronei Jesus Poppi<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Química<br>Made available in DSpace on 2018-08-16T16:50:05Z (GMT). No. of bitstreams: 1 Godoy_LauraBarbosaLimaNascimbemde_M.pdf: 1780795 bytes, checksum: 69eaeca155ecef2bd706747467fc95f5 (MD5) Previous issue date: 2010<br>Resumo: Neste trabalho, foi utilizada a Espectroscopia no Infravermelho Próximo (NIR) na região de 4.000 ¿ 10.000 cm e modelos de calibração multivariada para a previsão de densidade básica, lignina total e extrativos em madeira. Para isso, foi utilizado o algoritmo dos

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28

Matsuyama, Yumi. "Toxic Gas and Particulates Characterization in a Smoke Density Chamber." Case Western Reserve University School of Graduate Studies / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=case1557870495018474.

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29

Niedzwiecki, Lukasz. "Energy requirements for comminution of fibrous materials - qualitative chipping model." Thesis, Linnéuniversitetet, Institutionen för teknik, TEK, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-12298.

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This paper aims to derive qualitative model for energy requirements for wood chipping process. There is relationship shown between energy requirements and properties of biomass, which is quite variable material. Relationship between comminution machinery and energy necessary for the process is highlighted. Derivation of the model is focused on chipping but in general it’s possible, to make it available both for different types of biomass (f. ex. agricultural residues) or for different type of comminution machinery (f. ex. hammermills) just by using different material properties adjusted to mac

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30

Berg, Jan-Erik. "Wood and fibre mechanics related to the thermomechanical pulping process." Doctoral thesis, Mittuniversitetet, Institutionen för naturvetenskap, teknik och matematik, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-6725.

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The main objective of this thesis was to improve the understanding of some aspects on wood and fibre mechanics related to conditions in the thermomechanical pulping process. Another objective was to measure the power distribution between the rotating plates in a refiner. The thesis comprises the following parts: –A literature review aimed at describing fracture in wood and fibres as related to the thermomechanical pulping process –An experimental study of fracture in wood under compression, at conditions similar to those in feeding of chips into preheaters and chip refiners –An experimental

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31

Holmbom, Robin. "Virkesinvägning före torkning : Kan invägning av virkespaket optimera torkningsprocessen?" Thesis, Linnéuniversitetet, Institutionen för skog och träteknik (SOT), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-68125.

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Virkestorkning är ett mycket energikrävande men nödvändigt förädlingssteg för träindustrin. Eftersom energi- och tidsåtgången framförallt är beroende av mängden fukt som ska drivas ur virket så är kännedom om virkets initiala och slutliga fuktinnehåll avgörande för en optimerad process. Industriellt, idag, görs ofta en grov uppskattning av virkets initiala fuktmängd. Denna fuktmängd ligger sedan till grund för torkningens genomförande och dess resultat. I föreliggande arbete undersöks huruvida invägning av virkespaketen före torkning kan användas för att bestämma virkets fuktinnehåll och hur d

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32

Lovatti, Lucélio Pietralonga. "Madeira serrada na regi?o sul do Esp?rito Santo: comercializa??o e propriedades." Universidade Federal do Espírito Santo, 2008. http://repositorio.ufes.br/handle/10/6588.

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Made available in DSpace on 2016-12-23T14:37:35Z (GMT). No. of bitstreams: 1 lucelio lovatti.pdf: 1248502 bytes, checksum: c196251467613db326908ba81532337a (MD5) Previous issue date: 2008-03-26<br>This research had as general objective to obtain information regarding commercialization and physical properties of the sawn wood marketed in the South area of the Esp?rito Santo State. Seventeen wood deposits were visited and collected samples, as well as applied a questionnaire for obtaining of the information. Through the anatomy of the log forty species being marketed as sawn coming mainly of t

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33

Susin, Felipe. "AVALIAÇÃO DE PROGRAMAS DE SECAGEM PARA MADEIRAS DE EUCALIPTO ELABORADOS COM BASE EM TESTES PRÉVIOS A ALTA TEMPERATURA." Universidade Federal de Santa Maria, 2013. http://repositorio.ufsm.br/handle/1/8726.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>The difficulty of obtaining dry wood with a low incidence of defects is a challenge when it comes to eucalyptus wood, since the species of this genus exhibit drying difficult and high expression of defects, contributing to their use is limited and the level of losses on many occasions raised. The main objective of this study was to develop and evaluate programs for drying wood Corymbia citriodora, Eucalyptus robusta and Eucalyptus saligna. For this, it was evaluated drying parameters and physical characteristics of the species in p

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34

Soudek, Pavel. "Teplotně-vlhkostní posouzení prvků krovu s nadkrokevním systémem zateplení." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2014. http://www.nusl.cz/ntk/nusl-226670.

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This thesis deals with the temperature-moisture assessment of members in truss with above-rafter thermal insulation. Within this system it focuses on the details of creating a roof overhang because that is where the timber elements are under the greatest amount of moisture stress. Different variations of this detail are presented including the extent to which thermo-technical requirements and requirements surrounding the built-in timber elements are satisfied. Theoretical calculations are then compared with measurements which were performed on a real building. This task of measurement involved

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Umoru, Joseph Adejo. "Characteristics assessment of aspen logs used in the production of matches." Thesis, Linnéuniversitetet, Institutionen för skog och träteknik (SOT), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-75913.

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Aspen (Populus tremula L.) accounts for about 2% of the total wood stock in Sweden. Sawmills use only a small part (about 5,000 m³fub) of round wood aspen per year. Since there are no Swedish gradings and design values for aspen, no aspen is used for structural purposes. This also applies to other hardwood trees in Sweden. Aspen is mainly used for pulp and paper with a mass consumption of 800,000 m³fub per year of which about 50% is imported. Most imported aspen is from Russia and the Baltics. The other major use of aspen is in match industries. Consumption for matches amounts to approximately

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Uherka, Pavel. "Tepelně-vlhkostní analýza konstrukcí masivních dřevostaveb." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2016. http://www.nusl.cz/ntk/nusl-240341.

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This thesis deals with massive wooden buildings especially with regard to the current approach to their design, assessment and approval. In this thesis are shown future possibilities of development of traditional wooden buildings with regard to current thermal technical requirements. Theoretical considerations are then compared with measurements which were performed on massive wooden wall samples.

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Цюра, Надія Ярославівна. "Сумісний процес фільтрування та сушіння дисперсних матеріалів". Diss., Національний університет "Львівська політехніка", 2021. https://ena.lpnu.ua/handle/ntb/56692.

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Дисертаційна робота присвячена теоретичним та експериментальним дослідженням фільтраційного сушіння дисперсних матеріалів, зокрема Fe(II) сульфат гептагідрату, відпрацьованого деревного борошна й залізоокисного пігменту з метою проектування енергоощадного обладнання. Встановлені основні фізико-механічні характеристики стаціонарного шару досліджуваних матеріалів, а саме: насипна густина, пористість, питома поверхня, еквівалентний діаметр каналів, крізь якіфільтрується тепловий агент, усереднений діаметр частинок. На основі узагальнення результатів досліджень гідродинаміки запропоновані рівнянн

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Koubek, Radek, and Karolina Dedicova. "Friction of wood on steel." Thesis, Linnéuniversitetet, Institutionen för byggteknik (BY), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-35094.

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This thesis deals with the experimental description of friction between steel and wood materials, specifically laminated veneer lumber (LVL) and pine wood with two types of annual rings. It studies the influence of a number of different parameters on the coefficient of friction such as contact pressure, moisture content, fiber orientation in relation to the load direction, steel surface roughness, and horizontal load rate. First, the theoretical mechanical and physical properties as well as the coefficient of friction itself are described. This is followed by the description of the test setup

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Johansson, Martin. "Hårdgörning av Asp." Thesis, Växjö University, School of Technology and Design, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:vxu:diva-2291.

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<p>Hårdgörning av trä syftar till att göra materialet hårdare. Detta går att åstadkomma genom komprimering, det komprimerade materialet tenderar dock att återgå mot sin ursprungsform då materialet utsätts för fukt om ingen låsning sker. Låsningen kan ske mekaniskt i en treskiktskonstruktion som motverkar träets fuktrörelser. Dessa skivor har dock visat sig vara instabila och tidigare försök har uppvisat deformationer i form av kupning. Denna undersökning syftar till att utreda förutsättningarna för att använda komprimerad asp samt att ta fram underlag för framtagning av en kommersiell produkt.

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Becerra, Ochoa Fernando Amador. "Evaluation of six tools for estimating woody biomass moisture content." Thesis, 2012. http://hdl.handle.net/1957/37209.

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Woody biomass transportation costs and market values/costs are strongly correlated with the woody biomass moisture content. Properly managing moisture content can potentially lead to economic and environmental advantages in biomass energy markets. Good management requires accurate moisture content measurements. Therefore, availability of accurate, precise, reliable, and efficient tools to assess woody biomass moisture content is essential. In this study, six different tools (Fibre-Gen HM200, IML Hammer, Humimeter BLW, Timbermaster, Humimeter HM1 and Wile Bio Meter) were evaluated. The six tool

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Barker, Jason Scot. "The effects of moisture content and initial heterotrophic colonization on the decomposition of coarse woody debris." Thesis, 2003. http://hdl.handle.net/1957/32268.

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Previous research on coarse woody debris (CWD) indicated that moisture content and initial heterotrophic colonization of decaying wood can affect the decomposition process. Six heterotrophic treatments were created to simulate the effects of physical penetration of the bark and wood and the transmission of ascomycetes versus basidiomycetes into CWD. In 1995, 360 Douglas-fir (Pseudotsuga menziesii) were randomly placed at five replicate sites in old-growth stands. Each site had 6 heterotrophic (HET) x 2 moisture combinations (TENT). One set of logs representing the treatment combinations was us

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van, Dyk Hermanus H. "Ultrasonic evaluation of defects and moisture content of lumber /." 2004. http://www.library.umaine.edu/theses/theses.asp?highlight=1&Cmd=abstract&ID=FTY2004-008.

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Borland, Matthew James. "The Effect of Humidity and Moisture Content on the Tone of Musical Instruments." Thesis, 2014. http://hdl.handle.net/10012/8253.

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The purpose of this research work is to investigate the relationship between humidity and tone in musical instruments. A basic hypothesis that motivates this work is that normal seasonal variations in relative humidity are thought to alter the tone of instruments constructed from wood. These changes in tone are believed to be due to changes in the dimensions and material properties of an instrument that are a result of wooden components absorbing and adsorbing water in equilibrium with their ambient environmental conditions. To investigate this hypothesis an experiment was conducted with a

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Yen, Jeng-Hann, and 葉政翰. "Influence of wood species, moisture content and length on the modulus of elasticity of wood with three kinds of nondestructive instruments." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/95681533671169615489.

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碩士<br>國立中興大學<br>森林學系<br>82<br>The forest resources are decreasing day in and day out, on the other hand the forest products are required in the quality and suppying speed. Therefore, the nondestructive test (NDT) method for wood and wood based materials is necessary to be studied and developed. There were a lot of factors will affect the modulus of elasticity of wood, in this study the species, moisture content and length would be discussed as the viariation factors. Investigate those fact

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Phillips, Kristen Michelle. "Modeling within-tree changes in wood specific gravity and moisture content for loblolly pine in Georgia." 2002. http://purl.galileo.usg.edu/uga%5Fetd/phillips%5Fkristen%5Fm%5F200205%5Fms.

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Wang, Hao Lin, and 王顥霖. "The study of the influence of moisture content on wood strength and sandblasting property under F. S. P." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/pg7fup.

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ZHANG, ZHE-LUN, and 張哲綸. "Effects of Annual Ring Angle, Moisture Content and Heat Treatment on the Properties of Japanese Cedar Compressed Wood." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/w58xmy.

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碩士<br>國立宜蘭大學<br>森林暨自然資源學系碩士班<br>107<br>Compressed wood is a technology to convert soft and fragile wood with a low density into high-strength and superior performance wood. It can succeed to improve the wood utilization ratio and broaden the applications of domestic wood, but the remaining challenge of compressed wood stems from its dimensional instability. To address this issue, this study applied a post-heat treatment to decrease the internal stress of woods and further maintain its original dimensions. Clear specimens of Japanese Cedar (Cryptomeria japonica) was selected as studying materia

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Meng, Yujie. "Methods for characterizing mechanical properties of wood cell walls via nanoindentation." 2010. http://trace.tennessee.edu/utk_gradthes/731.

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Nanoindentation is a method of contacting a material whose mechanical properties are unknown with another material whose properties are known. Nanoindentation has the advantage of being able to probe a material’s microstructure while being sensitive enough to detect variations in mechanical properties. However, nanoindentation has some limitations as a testing technique due to the specific formation and structure of some biomaterials. The main objective of this research is to identify any factors that influence the nanoindentation measurement of wood cell walls (a typical biomaterial).The fun

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Cheng, Y. "Investigation of mechanical behaviours of Eucalyptus nitens timber." Thesis, 2022. https://eprints.utas.edu.au/47524/1/Cheng_whole_thesis.pdf.

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This research focuses on the investigation of the mechanical properties of plantation Eucalyptus nitens timber and the understanding of its underlying failure mechanism above and below the fibre saturation point both experimentally and numerically. Fast-growing eucalypts are now considered potential building materials; one such re-source is plantation Eucalyptus nitens. To use such a resource as structural or engineered timber, that is to establish design codes and specifications, its compressive and bending strengths need to be studied as they are two important mechanical properties for str

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Wentzel, Maximilian. "Process optimization of thermal modification of Chilean Eucalyptus nitens plantation wood." Doctoral thesis, 2019. http://hdl.handle.net/11858/00-1735-0000-002E-E5A0-2.

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