subject:(sawn)

Univerzitet u Beogradu

1. Popadić, Ranko V. Истраживање утицаја пречника и квалитета букове обловине на количину главних и споредних производа у пиланској преради дрвета.

Degree: Šumarski fakultet, 2020, Univerzitet u Beogradu

URL: https://fedorabg.bg.ac.rs/fedora/get/o:21666/bdef:Content/get

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Прерада дрвета - Примарна прерада дрвета / Wood processing - Primary wood processing

Tехнолошки процес пиланске прераде букве је сложен, трошкови су често већи, а… (more)

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Прерада дрвета - Примарна прерада дрвета / Wood processing - Primary wood processing

Tехнолошки процес пиланске прераде букве је сложен, трошкови су често већи, а искоришћење слабије у односу на друге врсте дрвета. Разлог за то је што су букови трупци неправилне форме и садрже различите грешке грађе дрвета. Једна од карактеристичних грешака је лажно срце, јер сортименти израђени од таквог дрвета имају нижу вредност и ограничену примену у финалним производима. Предмет истраживања је утицај пречника букових трупаца, њиховог квалитета и циљаног квалитета резане грађе на искоришћење и сортиментну структуру у сировом технолошком поступку пиланских прераде. Истраживање је обављено на 90 трупаца који су подељени на три квалитетне класе (према стандарду ЈУС Д.Б4.028) и три дебљинске групе. Дебљинске групе су биле: 30-34 cm (дебљински подразред IIIa), 35-39 cm (дебљински подразред IIIb) и 40-49 cm (IV дебљински разред). Дужина трупаца била је 4 m. Израђивана је окрајчена и неокрајчена резана грађа, срчаница и ситни сортименти (четвртаче, фризе и метларка). Сви наведени главни сортименти, као и споредни (отпаци) су премерени и установљено је њихово учешће у односу на трупац. На основу добијених података, приказани су квантитативно искоришћење сировине, сортиментна структура, вредносни показатељи и добит. Приликом прераде обловине је вариран и циљани квалитет окрајчене резане грађе. Из трупаца III дебљинског разреда је израђивана окрајчена грађа за египатско, а из трупаца IV разреда за италијанско тржиште. Сви остали сортименти су израђивани према критеријумима домаћег тржишта...

Advisors/Committee Members: Kolin, Branko.

Subjects/Keywords: sawmill processing; beech; logs; sawn timber; yield; quality; value

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Popadić, R. V. (2020). Истраживање утицаја пречника и квалитета букове обловине на количину главних и споредних производа у пиланској преради дрвета. (Thesis). Univerzitet u Beogradu. Retrieved from https://fedorabg.bg.ac.rs/fedora/get/o:21666/bdef:Content/get

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Popadić, Ranko V. “Истраживање утицаја пречника и квалитета букове обловине на количину главних и споредних производа у пиланској преради дрвета.” 2020. Thesis, Univerzitet u Beogradu. Accessed January 15, 2021. https://fedorabg.bg.ac.rs/fedora/get/o:21666/bdef:Content/get.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Popadić, Ranko V. “Истраживање утицаја пречника и квалитета букове обловине на количину главних и споредних производа у пиланској преради дрвета.” 2020. Web. 15 Jan 2021.

Vancouver:

Popadić RV. Истраживање утицаја пречника и квалитета букове обловине на количину главних и споредних производа у пиланској преради дрвета. [Internet] [Thesis]. Univerzitet u Beogradu; 2020. [cited 2021 Jan 15]. Available from: https://fedorabg.bg.ac.rs/fedora/get/o:21666/bdef:Content/get.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Popadić RV. Истраживање утицаја пречника и квалитета букове обловине на количину главних и споредних производа у пиланској преради дрвета. [Thesis]. Univerzitet u Beogradu; 2020. Available from: https://fedorabg.bg.ac.rs/fedora/get/o:21666/bdef:Content/get

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Technical University of Lisbon

2. Louro, Graça Maria Cabaço. Modelo global para as fileiras silvo-lenhosas.

Degree: 2011, Technical University of Lisbon

URL: http://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/3873

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Doutoramento em Engenharia Florestal e dos Recursos Naturais - Instituto Superior de Agronomia

The production flows in the sector of wood construction and furniture, paper… (more)

Subjects/Keywords: wood sector; wood volume; sawn wood; wood panels; wood pulp; paper and paper board

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Louro, G. M. C. (2011). Modelo global para as fileiras silvo-lenhosas. (Thesis). Technical University of Lisbon. Retrieved from http://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/3873

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Louro, Graça Maria Cabaço. “Modelo global para as fileiras silvo-lenhosas.” 2011. Thesis, Technical University of Lisbon. Accessed January 15, 2021. http://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/3873.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Louro, Graça Maria Cabaço. “Modelo global para as fileiras silvo-lenhosas.” 2011. Web. 15 Jan 2021.

Vancouver:

Louro GMC. Modelo global para as fileiras silvo-lenhosas. [Internet] [Thesis]. Technical University of Lisbon; 2011. [cited 2021 Jan 15]. Available from: http://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/3873.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Louro GMC. Modelo global para as fileiras silvo-lenhosas. [Thesis]. Technical University of Lisbon; 2011. Available from: http://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/3873

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Technical University of Lisbon

3. Pico, Filipa Cardoso Morais de Almeida. Efeito do nemátode do pinheiro no módulo de elasticidade da madeira de pinheiro-bravo.

Degree: 2011, Technical University of Lisbon

URL: http://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/4160

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Mestrado em Engenharia Florestal e dos Recursos Naturais - Instituto Superior de Agronomia

The goal of this work was to study the effect of pinewood… (more)

Subjects/Keywords: Pinus pinaster; maritime pine; sawn wood; pinewood nematode; pine wilt disease; elasticity in bending

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Pico, F. C. M. d. A. (2011). Efeito do nemátode do pinheiro no módulo de elasticidade da madeira de pinheiro-bravo. (Thesis). Technical University of Lisbon. Retrieved from http://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/4160

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Pico, Filipa Cardoso Morais de Almeida. “Efeito do nemátode do pinheiro no módulo de elasticidade da madeira de pinheiro-bravo.” 2011. Thesis, Technical University of Lisbon. Accessed January 15, 2021. http://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/4160.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Pico, Filipa Cardoso Morais de Almeida. “Efeito do nemátode do pinheiro no módulo de elasticidade da madeira de pinheiro-bravo.” 2011. Web. 15 Jan 2021.

Vancouver:

Pico FCMdA. Efeito do nemátode do pinheiro no módulo de elasticidade da madeira de pinheiro-bravo. [Internet] [Thesis]. Technical University of Lisbon; 2011. [cited 2021 Jan 15]. Available from: http://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/4160.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Pico FCMdA. Efeito do nemátode do pinheiro no módulo de elasticidade da madeira de pinheiro-bravo. [Thesis]. Technical University of Lisbon; 2011. Available from: http://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/4160

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

4. Vieira, Fábio Henrique Antunes [UNESP]. Image processing through machine learning for wood quality classification.

Degree: 2016, Universidade Estadual Paulista

URL: http://hdl.handle.net/11449/142813

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The quality classification of wood is prescribed throughout the wood chain industry, particularly those from the processing and manufacturing fields. Those organizations have invested energy… (more)

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The quality classification of wood is prescribed throughout the wood chain industry, particularly those from the processing and manufacturing fields. Those organizations have invested energy and time trying to increase value of basic items, with the purpose of accomplishing better results, in agreement to the market. The objective of this work was to compare Convolutional Neural Network, a deep learning method, for wood quality classification to other traditional Machine Learning techniques, namely Support Vector Machine (SVM), Decision Trees (DT), K-Nearest Neighbors (KNN), and Neural Networks (NN) associated with Texture Descriptors. Some of the possible options were to assess the predictive performance through the experiments with different techniques, Deep Learning and Texture Descriptors, for processing images of this material type. A camera was used to capture the 374 image samples adopted on the experiment, and their database is available for consultation. The images had some stages of processing after they have been acquired, as pre-processing, segmentation, feature analysis, and classification. The classification methods occurred through Deep Learning, more specifically Convolutional Neural Networks - CNN, and using Texture Descriptors with Support Vector Machine, Decision Trees, K-nearest Neighbors and Neural Network. Empirical results for the image dataset showed that the approach using texture descriptor method, regardless of the strategy employed, is very competitive when compared with CNN for all performed experiments, and even overcome it for this application.

A classificação da qualidade da madeira é indicada para indústria de processamento e produção desse material. Essas empresas têm investido em soluções para agregar valor à matéria-prima, com o intuito de melhorar resultados, observando os rumos do mercado. O objetivo deste trabalho foi comparar Redes Neurais Convolutivas, um método de aprendizado profundo, na classificação da qualidade de madeira, com outras técnicas tradicionais de Máquinas de aprendizado, como Máquina de Vetores de Suporte, Árvores de Decisão, Regra dos Vizinhos Mais Próximos e Redes Neurais, em conjunto com Descritores de Textura. Isso foi possível através da verificação do nível de acurácia das experiências com diferentes técnicas, como Aprendizado Profundo e Descritores de Textura no processamento de imagens destes objetos. Foi utilizada uma câmera convencional para capturar as 374 amostras de imagem adotadas no experimento, e a base de dados está disponível para consulta. O processamento das imagens passou por algumas fases, após terem sido obtidas, como pré-processamento, segmentação, análise de recursos e classificação. Os métodos de classificação se deram através de Aprendizado Profundo e por meio de técnicas de Aprendizado de Máquinas tradicionais como Máquina de Vetores de Suporte, Árvores de Decisão, Regra dos Vizinhos Mais Próximos e Redes Neurais juntamente com os Descritores de Textura. Os resultados empíricos para o conjunto de dados das imagens da madeira…

Advisors/Committee Members: Alves, Manoel Cléber de Sampaio [UNESP], Universidade Estadual Paulista (UNESP).

Subjects/Keywords: Inteligência artificial; Descritores de textura; Madeira serrada; Artificial intelligence; Texture descriptors; Sawn wood

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Vieira, F. H. A. [. (2016). Image processing through machine learning for wood quality classification. (Thesis). Universidade Estadual Paulista. Retrieved from http://hdl.handle.net/11449/142813

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Vieira, Fábio Henrique Antunes [UNESP]. “Image processing through machine learning for wood quality classification.” 2016. Thesis, Universidade Estadual Paulista. Accessed January 15, 2021. http://hdl.handle.net/11449/142813.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Vieira, Fábio Henrique Antunes [UNESP]. “Image processing through machine learning for wood quality classification.” 2016. Web. 15 Jan 2021.

Vancouver:

Vieira FHA[. Image processing through machine learning for wood quality classification. [Internet] [Thesis]. Universidade Estadual Paulista; 2016. [cited 2021 Jan 15]. Available from: http://hdl.handle.net/11449/142813.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Vieira FHA[. Image processing through machine learning for wood quality classification. [Thesis]. Universidade Estadual Paulista; 2016. Available from: http://hdl.handle.net/11449/142813

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universidade Federal de Viçosa

5. Rommel Noce. Risco-retorno e elasticidade da demanda da madeira serrada e custo do manejo florestal na Amazônia.

Degree: 2009, Universidade Federal de Viçosa

URL: http://www.tede.ufv.br/tedesimplificado/tde_busca/arquivo.php?codArquivo=2165

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This work had as a main objective to contribute for the native forest management in the Amazonian Oriental area, collaborating for the visualization of financial… (more)

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This work had as a main objective to contribute for the native forest management in the Amazonian Oriental area, collaborating for the visualization of financial economical aspects. The risk-return relationship of sawn wood from different forest native species of the Amazonian area was characterized, with the specific objective to determinate the riskreturn relationship of the sawn wood of Ipê, Jatobá, Maçaranduba, Angelim Pedra, Angelim Vermelho and Cumaru, observed from 2003 to 2007. TGC of the prices of the m3 of boards of each species was admitted as return estimative and the variation coefficient as indicative of the risk. It was concluded that they float in a relatively similar way and that Jatobá stood out in attractiveness terms, considering the whole period, while the other species presented a coherent relationship among themselves of higher returns associated with higher risks. Angelim Vermelho and Maçaranduba stood out for the attractiveness in an annual perspective. It was estimated the demand elasticity for sawn wood in Brazil. It aimed specifically the elasticity price of the m3 of sawn wood, the elasticity price of the m3 of wood panels and the income elasticity GDP of the nation. It was used a log-log model, with correction through outline of the mobile average (MA(1)), adjusted for the period from 1971 to 2006, which showed to be stable, with satisfactory significance levels. It was observed that the sawn wood demand is inelastic in relation to price and elastic in relation to income. It was delineated as objective to estimate the costs of the sustainable forest management in the Amazonian area. Through the observed revenue of the management activities in the area and the current value of the involved resources, it was estimate the fixed and variable costs, for each activity of the forest management. It was noticed that transportation represents the principal component of the average cost of the m3 of extracted wood, which reduces as the area of the APU (Annual Production Unit) increases. The impact of the alteration of the productivity overcomes the exercised by the variation in the cut intensity, both in the increase or reduction of costs.

Este trabalho teve como objetivo principal contribuir para a gestão de manejo de mata nativa na região da Amazônia Oriental, colaborando para a visualização de aspectos econômicos financeiros. Caracterizou-se a relação risco-retorno da madeira serrada oriunda de diferentes espécies florestais nativas da região amazônica, com o objetivo específico de determinar a relação risco-retorno da madeira serrada de Ipê, Jatobá, Maçaranduba, Angelim Pedra, Angelim Vermelho e Cumaru observada de 2003 a 2007. Admitiu-se a TGC dos preços do m3 das pranchas de cada espécie como estimativa de retorno e o coeficiente de variação como indicativo do risco. Concluiu-se que as mesmas flutuam de forma relativamente semelhante e que o Jatobá destacou-se em termos de atratividade, considerando todo o período, enquanto as demais espécies apresentaram uma relação coerente entre si de…

Advisors/Committee Members: Agostinho Lopes de Souza, Amaury Paulo de Souza, Lourival Marin Mendes, José Luiz Pereira de Rezende, Márcio Lopes da Silva.

Subjects/Keywords: Atratividade; Demanda da madeira; Economia florestal; MANEJO FLORESTAL; Attractiveness; Demand of sawn; Forest economy

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Noce, R. (2009). Risco-retorno e elasticidade da demanda da madeira serrada e custo do manejo florestal na Amazônia. (Thesis). Universidade Federal de Viçosa. Retrieved from http://www.tede.ufv.br/tedesimplificado/tde_busca/arquivo.php?codArquivo=2165

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Noce, Rommel. “Risco-retorno e elasticidade da demanda da madeira serrada e custo do manejo florestal na Amazônia.” 2009. Thesis, Universidade Federal de Viçosa. Accessed January 15, 2021. http://www.tede.ufv.br/tedesimplificado/tde_busca/arquivo.php?codArquivo=2165.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Noce, Rommel. “Risco-retorno e elasticidade da demanda da madeira serrada e custo do manejo florestal na Amazônia.” 2009. Web. 15 Jan 2021.

Vancouver:

Noce R. Risco-retorno e elasticidade da demanda da madeira serrada e custo do manejo florestal na Amazônia. [Internet] [Thesis]. Universidade Federal de Viçosa; 2009. [cited 2021 Jan 15]. Available from: http://www.tede.ufv.br/tedesimplificado/tde_busca/arquivo.php?codArquivo=2165.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Noce R. Risco-retorno e elasticidade da demanda da madeira serrada e custo do manejo florestal na Amazônia. [Thesis]. Universidade Federal de Viçosa; 2009. Available from: http://www.tede.ufv.br/tedesimplificado/tde_busca/arquivo.php?codArquivo=2165

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Linnaeus University

6. Briggert, Andreas. Fibres orientation on sawn surfaces : Can fibre orientation on sawn surfaces be determined by means of high resolution scanning.

Degree: Building Technology, 2014, Linnaeus University

URL: http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-34979

► In 2013 the European journal of wood and wood products published an article regarding a new method to predict strength in structural timber (Olsson… (more)

▼ In 2013 the European journal of wood and wood products published an article regarding a new method to predict strength in structural timber (Olsson et al 2013). By determining the fibres orientation on all four surfaces of each board in sample of timber using a high resolution scanner the authors were able to achieve a coefficient of determination, R², as high as 0.71 between bending strength and a new indicating property (IP). For the same sample of timber Olsson et al (2013) determined the R² by axial dynamic excitation as 0.59. However, all boards used in their investigation were planed before scanning. This study examines if a high resolution scanner could be used to determine the fibre orientation on the surfaces of sawn timber boards of Norway spruce. Both band sawn surfaces and circular sawn surfaces were examined. The procedure in this investigation is described as follows. Firstly, both the band sawn and the circular sawn boards were scanned by a WoodEye® scanner and together with dimensions, weight and the first longitudinal resonance frequency, a modulus of elasticity (MOE) profile was calculated for each board. The MOE profiles were calculated according to Olsson et al (2013) i.e. by a transformation matrix based upon the fibres orientation and a compliance matrix based on material parameters for Norway spruce. Secondly, the corresponding MOE profiles were then determined after the boards had been planed. As a result two MOE profiles were determined for each board. An indicating property (IP) was defined as the lowest value along each MOE profile. To compare the results a regression analysis was performed in which the IPs defined before planing worked as predictor variable and IPs defined after planing worked as response variable. The band sawn band boards yielded an R² = 0.94 and the circular sawn boards an R² = 0.93. Further the standard error of estimate was SEE = 829.1 MPa and SEE = 640.9 MPa respectively. As a last step in this investigation the SEE values achieved in this study where implemented on to the sample Olsson et al (2013) used in their investigation.

Subjects/Keywords: Norway spruce; fibre orientation; sawn surfaces; modulus of elasticity; Other Civil Engineering; Annan samhällsbyggnadsteknik

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Briggert, A. (2014). Fibres orientation on sawn surfaces : Can fibre orientation on sawn surfaces be determined by means of high resolution scanning. (Thesis). Linnaeus University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-34979

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Briggert, Andreas. “Fibres orientation on sawn surfaces : Can fibre orientation on sawn surfaces be determined by means of high resolution scanning.” 2014. Thesis, Linnaeus University. Accessed January 15, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-34979.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Briggert, Andreas. “Fibres orientation on sawn surfaces : Can fibre orientation on sawn surfaces be determined by means of high resolution scanning.” 2014. Web. 15 Jan 2021.

Vancouver:

Briggert A. Fibres orientation on sawn surfaces : Can fibre orientation on sawn surfaces be determined by means of high resolution scanning. [Internet] [Thesis]. Linnaeus University; 2014. [cited 2021 Jan 15]. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-34979.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Briggert A. Fibres orientation on sawn surfaces : Can fibre orientation on sawn surfaces be determined by means of high resolution scanning. [Thesis]. Linnaeus University; 2014. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-34979

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

7. Emanuelsson, Patrik. Study of a new method to measure the stresses in rock by image technology : Use of sawn slots and DIgital Image Correlation.

Degree: Mining and Geotechnical Engineering, 2018, Luleå University of Technology

URL: http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-68646

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In rock constructions and mining it is important to know the current stress situation in the rock due to safety and construction reasons. Two… (more)

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In rock constructions and mining it is important to know the current stress situation in the rock due to safety and construction reasons. Two of the widely used stress measurement methods are overcoring and hydraulic fracturing. Both methods are expensive, need new boreholes, and are complex and time consuming. The methods are also limited by the number of successfully achieved measurements series. An alternative method is therefore investigated by locally relieving stresses around the borehole wall using sawn slots. To determine the stresses in the rock, strain measurements will be done using optics and image processing of images taken before and after cutting of the slots. The images will be processed by a technique called Digital Image Correlation (DIC), a method where the pixels are fitted between the images by the greyscale. The thesis is roughly divided into three parts. The first part explains the basics of rock stresses and current stress measurement methods. The second part is a literature study of the theory behind optics and DIC. There is also a study about if it is possible to use optics from a smartphone and how it differs from a reference commonly used camera in DIC application. Last part consists of numerical calculations in 2D to investigate if there is a possibility to relieve the stress around the borehole walls by cutting slots. With the optics from a smartphone the borehole wall can be in focus on just a few millimeters distance. DIC is a well-developed method which has a good precision when being conducted right and with a good image quality. The combination of using a smartphone and DIC is, however, not fully investigated yet. Only one comparable study was found. It used a Sony tablet and measured the deformations instead of strains. However, that study showed that the measurement error was around 1% compared to the reference camera. When translating deformations into strains, it is most likely that the error will increase, because the error will also be affected from the difference in deformation before and after cutting the slots. The numerical part showed that it’s possible to relieve the stress at parts of the borehole walls for the investigated conditions. To fully relieve the stresses around the borehole wall, it is necessary to have two slots with a short c-c distance and relatively deep slots. In this case a c-c distance of 15 mm and slot depth of at least 25 mm are recommended.

Vid projekt inom berganläggningar och gruvor är det viktigt att känna till de rådande spänningar i berget i ett säkerhets- och konstruktionsperspektiv. I Sverige används framförallt två undersökningsmetoder - överborrning eller hydraulisk spräckning. Två metoder som dock är dyra och relativt få mätserier kan genomföras. En alternativ metod har därför undersökts där borrhålsväggen lokalt avlastas genom sågade slitsar. Töjningsmätning sker genom att fotografera borrhålsväggen innan och efter sågning av slitsarna. Därefter sker bildbehandling via Digital Image Correlation (DIC). En…

Subjects/Keywords: Digital Image Correlation; Numerical modelling; Stress measurement; Sawn slots; Geotechnical Engineering; Geoteknik

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APA (6^th Edition):

Emanuelsson, P. (2018). Study of a new method to measure the stresses in rock by image technology : Use of sawn slots and DIgital Image Correlation. (Thesis). Luleå University of Technology. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-68646

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Emanuelsson, Patrik. “Study of a new method to measure the stresses in rock by image technology : Use of sawn slots and DIgital Image Correlation.” 2018. Thesis, Luleå University of Technology. Accessed January 15, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-68646.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Emanuelsson, Patrik. “Study of a new method to measure the stresses in rock by image technology : Use of sawn slots and DIgital Image Correlation.” 2018. Web. 15 Jan 2021.

Vancouver:

Emanuelsson P. Study of a new method to measure the stresses in rock by image technology : Use of sawn slots and DIgital Image Correlation. [Internet] [Thesis]. Luleå University of Technology; 2018. [cited 2021 Jan 15]. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-68646.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Emanuelsson P. Study of a new method to measure the stresses in rock by image technology : Use of sawn slots and DIgital Image Correlation. [Thesis]. Luleå University of Technology; 2018. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-68646

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universidade do Rio Grande do Sul

8. Heinrich, Daniele. Simulação da produção de madeira serrada.

Degree: 2010, Universidade do Rio Grande do Sul

URL: http://hdl.handle.net/10183/21104

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O aumento da competição e a aceleração dos avanços tecnológicos têm contribuído para o desenvolvimento de novos conceitos e estratégias de produção, direcionando as empresas… (more)

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O aumento da competição e a aceleração dos avanços tecnológicos têm contribuído para o desenvolvimento de novos conceitos e estratégias de produção, direcionando as empresas à busca contínua de novas oportunidades de negócios e melhorias dos processos produtivos. A indústria de madeira serrada no Brasil, na sua grande maioria, apresenta estrutura produtiva precária, com baixa produtividade, e sua sobrevivência depende da busca por melhorias de eficiência técnica e econômica dos processos de transformação. Nesta busca de melhorias de processos, a simulação de sistemas pode ser utilizada como ferramenta de apoio à decisão no planejamento da produção de serrarias, contribuindo para a competitividade das empresas. Esta dissertação objetiva desenvolver um modelo de simulação da produção de madeira serrada para auxiliar no planejamento da produção de uma serraria. O trabalho verificou a real potencialidade do uso da simulação no processo produtivo da serraria, se mostrando uma alternativa para o planejamento da produção da mesma. Com o uso da ferramenta estudada, o sistema produtivo foi modelado e validado utilizando o pacote de simulação Arena. Dentre os resultados desta dissertação, podem ser destacados: o modelo de pesquisa, a identificação das variáveis do sistema, o desenvolvimento e a validação do modelo.

The growing competition and the acceleration of technological advances have been contributing for the development of new production concepts and strategies, guiding companies into the search for continuous new business opportunities and productive processes improvements. Most of sawn wood industry in Brazil presents poor productive structure with low productivity, and its survival depends on the search for improvements on technical and economic efficiency of transformation processes. On this search, system simulation can be used as a supporting tool when deciding about the saw production planning, which contributes in favor of company competition. This paper work aims the development of a sawn wood production simulation model in order to help in the planning of a sawmill production. This work verifies the real potentiality when using the simulation during the sawmill productive process, which demonstrates it can be an alternative for the planning of the sawmill production. After using the above studied tool, the productive system was modeled and validated based on Arena simulation package. Among all the results of this study, some deserve to be highlighted: the research model, the identification of the system variables, and the model development and validation.

Advisors/Committee Members: Macada, Antonio Carlos Gastaud.

Subjects/Keywords: Simulation; Madeira serrada; Planejamento da produção; Decision support system; Simulação; Production planning; Sawn wood; Sistema de apoio à decisão

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APA (6^th Edition):

Heinrich, D. (2010). Simulação da produção de madeira serrada. (Thesis). Universidade do Rio Grande do Sul. Retrieved from http://hdl.handle.net/10183/21104

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Heinrich, Daniele. “Simulação da produção de madeira serrada.” 2010. Thesis, Universidade do Rio Grande do Sul. Accessed January 15, 2021. http://hdl.handle.net/10183/21104.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Heinrich, Daniele. “Simulação da produção de madeira serrada.” 2010. Web. 15 Jan 2021.

Vancouver:

Heinrich D. Simulação da produção de madeira serrada. [Internet] [Thesis]. Universidade do Rio Grande do Sul; 2010. [cited 2021 Jan 15]. Available from: http://hdl.handle.net/10183/21104.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Heinrich D. Simulação da produção de madeira serrada. [Thesis]. Universidade do Rio Grande do Sul; 2010. Available from: http://hdl.handle.net/10183/21104

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Michigan

9. Kwaiser, Kyle. Accounting for observation uncertainty in species-habitat models: A case study using bird survey data from Poyang Lake, China.

Degree: MS, Natural Resources and Environment, 2009, University of Michigan

URL: http://hdl.handle.net/2027.42/63510

► Uncertainty in the location of in situ wildlife observations may impair the performance of habitat models based on those observations. In this thesis, I explore… (more)

▼ Uncertainty in the location of in situ wildlife observations may impair the performance of habitat models based on those observations. In this thesis, I explore the effects of location uncertainty on inference in species-habitat models using a simulation approach to propagate uncertainty in habitat models and quantify its effects. Using a point survey of overwintering migratory birds at Poyang Lake, China, I applied Monte Carlo methods to characterize the uncertainty that results when the observer locations and species abundances are known, but the specific directions and distances of the observations (i.e. the specific location of the observed landscape) are unknown. Habitat models of a tuber-feeding swan (tundra swan; Cygnus columbianus) indicated that the abundance of this species increased with the amount of shallow water, a land-cover class likely to contain submerged aquatic vegetation communities; and that of a grazing goose (white-fronted goose; Anser albifrons albifrons) increased with the amount of sparse live wetland vegetation, a land-cover class found in the transition space between mudflats and perennial wetland vegetation. The incorporation of location uncertainty into the habitat models of tundra swans produced uncertainties in the inferred relationship to shallow water, as indicated by changes from positive to negative parameter coefficient estimates, in 15% of simulated models while the relationship between white-fronted goose abundance and sparse live wetland vegetation was positive for 98% of model runs. The causes of these changes in inference were highly dependent on landscape configurations and therefore difficult to predict or generalize. I found that fixed-radius models (i.e., models constructed assuming that the observed area was a uniform-sized circular area around each sample point) were consistent in terms of direction of effects with the simulation results but should be used with caution when interpreting the strength of the species-habitat relationship from these models due to high variability resulting from observation uncertainty. Advisors/Committee Members: Brown, Daniel (advisor), Bergen, Kathleen (committee member).

Subjects/Keywords: Habitat Models; Poyang Lake, China; Tundra Sawn; Wetland Vegetation

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Kwaiser, K. (2009). Accounting for observation uncertainty in species-habitat models: A case study using bird survey data from Poyang Lake, China. (Masters Thesis). University of Michigan. Retrieved from http://hdl.handle.net/2027.42/63510

Chicago Manual of Style (16^th Edition):

Kwaiser, Kyle. “Accounting for observation uncertainty in species-habitat models: A case study using bird survey data from Poyang Lake, China.” 2009. Masters Thesis, University of Michigan. Accessed January 15, 2021. http://hdl.handle.net/2027.42/63510.

MLA Handbook (7^th Edition):

Kwaiser, Kyle. “Accounting for observation uncertainty in species-habitat models: A case study using bird survey data from Poyang Lake, China.” 2009. Web. 15 Jan 2021.

Vancouver:

Kwaiser K. Accounting for observation uncertainty in species-habitat models: A case study using bird survey data from Poyang Lake, China. [Internet] [Masters thesis]. University of Michigan; 2009. [cited 2021 Jan 15]. Available from: http://hdl.handle.net/2027.42/63510.

Council of Science Editors:

Kwaiser K. Accounting for observation uncertainty in species-habitat models: A case study using bird survey data from Poyang Lake, China. [Masters Thesis]. University of Michigan; 2009. Available from: http://hdl.handle.net/2027.42/63510

University of Washington

10. Huang, Yue. Surface Acoustic Wave Nebulization as a Mass Spectrometry Ionization Source, Characterization and Application.

Degree: PhD, 2014, University of Washington

URL: http://hdl.handle.net/1773/25129

► This dissertation describes a novel method to generate ions for mass spectrometers that simplifies the operation and decreases the internal energy distribution of ions. The… (more)

Subjects/Keywords: ambient ionization source; Digital Microfluidics; mass spectrometry; phosphorylated peptide; SAWN; Surface Acoustic Wave; Analytical chemistry; chemistry

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APA (6^th Edition):

Huang, Y. (2014). Surface Acoustic Wave Nebulization as a Mass Spectrometry Ionization Source, Characterization and Application. (Doctoral Dissertation). University of Washington. Retrieved from http://hdl.handle.net/1773/25129

Chicago Manual of Style (16^th Edition):

Huang, Yue. “Surface Acoustic Wave Nebulization as a Mass Spectrometry Ionization Source, Characterization and Application.” 2014. Doctoral Dissertation, University of Washington. Accessed January 15, 2021. http://hdl.handle.net/1773/25129.

MLA Handbook (7^th Edition):

Huang, Yue. “Surface Acoustic Wave Nebulization as a Mass Spectrometry Ionization Source, Characterization and Application.” 2014. Web. 15 Jan 2021.

Vancouver:

Huang Y. Surface Acoustic Wave Nebulization as a Mass Spectrometry Ionization Source, Characterization and Application. [Internet] [Doctoral dissertation]. University of Washington; 2014. [cited 2021 Jan 15]. Available from: http://hdl.handle.net/1773/25129.

Council of Science Editors:

Huang Y. Surface Acoustic Wave Nebulization as a Mass Spectrometry Ionization Source, Characterization and Application. [Doctoral Dissertation]. University of Washington; 2014. Available from: http://hdl.handle.net/1773/25129

11. Vuorilehto, Jaakko. Size Control of Sawn Timber by Optical Means in Breakdown Saw Machines.

Degree: 2001, Helsinki University of Technology

URL: http://lib.tkk.fi/Diss/2001/isbn9512256622/

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The thesis investigates optical measuring and statistical data processing, and presents a method to understand and reduce sawing variation by examination of sawn timber sizes.… (more)

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The thesis investigates optical measuring and statistical data processing, and presents a method to understand and reduce sawing variation by examination of sawn timber sizes. Continuous timber size control offers improved opportunities for analysing saw machines or even individual sawblades. The thesis is illustrated with seven saw machine case studies that relate to the development of the technique. Log and cant breakdown is examined in single- and double-arbor circular saws and bandsaws. The first analysis of each saw machine is made in normal production, and the second using a controlled benchmarking test. A total of 44350 logs were sawn in the study. The behaviour of a saw machine is described using such descriptors as total, within-board and between-board standard deviations, and sawblade bend. Based on observations in benchmarking, an equation y=αeβx±R, where α and β are constants, R the process reproducibility, and x a variable that expresses sawing time and saw load, can be established for each of the saw machine descriptors. An example is the total standard deviation descriptor function s=0.21e0.58x±0.11, established for a single-arbor circular saw in a 4-piece saw set-up. The method will help a sawmill to establish descriptors and equations used to describe the behaviour of their saw machines, to baseline saw machine performance and to compare it to best practices in the industry. The descriptors may be used to establish current, short- or long-term capabilities and characteristics. The method can be used to examine various production conditions and tooling, such as effects of log size, feed speed, and sawing time. Other factors include saw speed, sawblade parameters, operation of setworks and feedworks, and effects of seasons. The results of the study show that sawblade behaviour, feedworks and work piece holding problems, and previous saw machines may be causes of large sawing variation.

Helsinki University of Technology Laboratory of Wood Technology reports, ISSN 1456-6419; 88

Advisors/Committee Members: Helsinki University of Technology, Department of Forest Products Technology, Laboratory of Wood Technology.

Subjects/Keywords: sawing variation; lumber size control; sawn timber size; optical measurement; saw machines

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APA (6^th Edition):

Vuorilehto, J. (2001). Size Control of Sawn Timber by Optical Means in Breakdown Saw Machines. (Thesis). Helsinki University of Technology. Retrieved from http://lib.tkk.fi/Diss/2001/isbn9512256622/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Vuorilehto, Jaakko. “Size Control of Sawn Timber by Optical Means in Breakdown Saw Machines.” 2001. Thesis, Helsinki University of Technology. Accessed January 15, 2021. http://lib.tkk.fi/Diss/2001/isbn9512256622/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Vuorilehto, Jaakko. “Size Control of Sawn Timber by Optical Means in Breakdown Saw Machines.” 2001. Web. 15 Jan 2021.

Vancouver:

Vuorilehto J. Size Control of Sawn Timber by Optical Means in Breakdown Saw Machines. [Internet] [Thesis]. Helsinki University of Technology; 2001. [cited 2021 Jan 15]. Available from: http://lib.tkk.fi/Diss/2001/isbn9512256622/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Vuorilehto J. Size Control of Sawn Timber by Optical Means in Breakdown Saw Machines. [Thesis]. Helsinki University of Technology; 2001. Available from: http://lib.tkk.fi/Diss/2001/isbn9512256622/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

12. Piva, Márcia Elizabeth Marchini. Estratégias de qualificação da madeira estrutural para profissionalizar o uso desse material a níveis comercial e de obra.

Degree: Mestrado, Recursos Florestais, 2013, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/11/11150/tde-30012014-111510/ ;

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O presente trabalho tem por objetivo principal apresentar um processo de qualificação de peças estruturais das espécies emergentes Leucaena leucocephala, Corymbia maculata e híbrido torelliodora:… (more)

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O presente trabalho tem por objetivo principal apresentar um processo de qualificação de peças estruturais das espécies emergentes Leucaena leucocephala, Corymbia maculata e híbrido torelliodora: Corymbia torelliana x Corymbia citriodora, através de ensaios simplificados a fim de profissionalizar o uso generalizado da madeira. O mercado madeireiro não dispõe de recursos técnicos e econômicos para oferecer, com critério de segurança, novas alternativas de madeiras. Cumpriu-se um exigente programa de métodos de ensaios laboratoriais conhecidos em normas e de novos procedimentos de ensaio de obra aliando vantagens econômicas, segurança e tempo. São apresentados ensaios de flexão não destrutivos e destrutivos em peças na condição real de uso em máquina universal de ensaio, em obra e em corpos de provas segundo recomendações da norma brasileira NBR 7190/97. Não houve diferenças significativas entre os métodos de ensaio, concluindo-se, por um lado, que dificilmente se conseguem corpos de prova totalmente isentos de defeitos e, por outro lado, que os ensaios de obra são plenamente confiáveis. Estabeleceram-se correlações entre módulo de elasticidade (EM0) e o módulo de ruptura (fM) e entre resistência à compressão (fc0) e o módulo de ruptura (fM), módulo de elasticidade (EM0), módulo de elasticidade na compressão (Ec0), resistência ao cisalhamento (fv0) e densidade aparente, a fim de determinarem-se as propriedades mecânicas obtidas por ensaios mais complicados a partir de ensaios mais simples e, assim minimizar custos e tempo. Os resultados corroboraram para que a madeira seja comercializada e qualificada pelo módulo de elasticidade (EM0) e módulo de ruptura (fM) para cálculos e dimensionamentos de estruturas de madeira, possibilitando otimização de material e maior segurança nas estruturas. As espécies estudadas são aptas para o mercado de madeira estrutural ficando evidenciado que o ensaio de obra constitui-se numa metodologia que pode ser facilmente utilizada a nível comercial e de obra.

The current study aims to present a qualification process of structural wood pieces of emerging species Leucaena leucocephala, Corymbia maculata and hybrid torelliodora (Corymbia torelliana x C. citriodora), through simplified tests to professionalize the generalized timber uses. The wood market, due to lack of technical and economic resources, cannot offer, with safety criteria, alternatives to timber sources. A demanding program of standard laboratory testing protocols was followed and new test procedures for field tests combining economic advantages, security and time were developed. Nondestructive and destructive bending tests are presented in timber pieces in the real use condition in the universal testing machine, in field tests and in specimens according to recommendations of the Brazilian standard NBR 7190/97. No significant differences between the test methods were observed, which implies, from one side, that is almost impossible to obtain entirely defect-free specimens and, from the other side, the field tests are fully…

Advisors/Committee Members: Garcia, Jose Nivaldo.

Subjects/Keywords: Classificação estrutural; Corymbia maculata; Corymbia maculata; Hibrido torelliodora; Hybrid torelliodora; Leucaena leucocephala; Leucaena leucocephala; Madeira serrada; Mercado; Sawn wood - Market; Structural classification

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Piva, M. E. M. (2013). Estratégias de qualificação da madeira estrutural para profissionalizar o uso desse material a níveis comercial e de obra. (Masters Thesis). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/11/11150/tde-30012014-111510/ ;

Chicago Manual of Style (16^th Edition):

Piva, Márcia Elizabeth Marchini. “Estratégias de qualificação da madeira estrutural para profissionalizar o uso desse material a níveis comercial e de obra.” 2013. Masters Thesis, University of São Paulo. Accessed January 15, 2021. http://www.teses.usp.br/teses/disponiveis/11/11150/tde-30012014-111510/ ;.

MLA Handbook (7^th Edition):

Piva, Márcia Elizabeth Marchini. “Estratégias de qualificação da madeira estrutural para profissionalizar o uso desse material a níveis comercial e de obra.” 2013. Web. 15 Jan 2021.

Vancouver:

Piva MEM. Estratégias de qualificação da madeira estrutural para profissionalizar o uso desse material a níveis comercial e de obra. [Internet] [Masters thesis]. University of São Paulo; 2013. [cited 2021 Jan 15]. Available from: http://www.teses.usp.br/teses/disponiveis/11/11150/tde-30012014-111510/ ;.

Council of Science Editors:

Piva MEM. Estratégias de qualificação da madeira estrutural para profissionalizar o uso desse material a níveis comercial e de obra. [Masters Thesis]. University of São Paulo; 2013. Available from: http://www.teses.usp.br/teses/disponiveis/11/11150/tde-30012014-111510/ ;

13. Gros, Urška. Raziskava možnih izboljšav skladiščnega poslovanja žaganega lesa v izbranem podjetju.

Degree: 2013, Univerza v Mariboru

URL: https://dk.um.si/IzpisGradiva.php?id=40623 ; https://dk.um.si/Dokument.php?id=55676&dn= ; https://plus.si.cobiss.net/opac7/bib/512525373?lang=sl

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V magistrskem delu smo raziskovali skladiščno poslovanje žaganega lesa v Gozdnem gospodarstvu Slovenj Gradec, d.d. Problem, ki smo ga analizirali, je v neučinkovitem skladiščnem poslovanju.… (more)

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V magistrskem delu smo raziskovali skladiščno poslovanje žaganega lesa v Gozdnem gospodarstvu Slovenj Gradec, d.d. Problem, ki smo ga analizirali, je v neučinkovitem skladiščnem poslovanju. Skladiščenje žaganega lesa poteka kaotično, saj se žagan les uskladišči na prazno neoznačeno mesto. Označba na zložaju ne omogoča dovolj dobre sledljivosti, saj ni vidna ob tesnem skladiščenju zložajev. Tako pri odpremi prihaja do nepotrebnih prelaganj in podaljšanja celotne odpreme. Težava je tudi v prezasedenosti skladišča, predvsem z lesom zmanjšane kvalitete. To pomeni, da skladiščni prostor ne opravlja zaščitne funkcije, te zaloge lesa pa negativno vplivajo na preostali zdrav les. Sušilnici sta nepopolno izkoriščeni, njuna dislociranost pa prinaša dodatne stroške. Kot rešitev obstoječega stanja smo predlagali tri rešitve: prestavitev sušilnic, prenovo skladiščnega prostora in investicijo v zlagalno-sortirno linijo. Glede na analizo smo izbrali skupek vseh treh variant. Sušilnice bi bile bolj izkoriščene, več bi bilo kakovostno posušenega lesa. Zlagalno-sortirna linija bi pripomogla h kvalitetnejšemu formiranju zložajev in s tem boljše uskladiščenje. Preoblikovan skladiščni prostor bi zagotavljal dobro sledljivost in ohranjanje kakovosti žaganega lesa. Skupno bi se zmanjšali stroški, učinkovitost in kakovost bi bili višji, celoten proces pa bi bil hitrejši.

Master paper concentrates on warehouse operations for sawn timber at Gozdno gospodarstvo Slovenj Gradec, d.d. The problem that we analysed are inefficient warehouse operations. The storage of sawn timber is rather chaotic since sawn timber is stored on an empty unmarked spot. Designation on packages does not allow sufficient traceability as it cannot be seen when packages are stored very close. Additional problem lies also in overfilled warehouse, in particular with low-quality timber. This indicates that warehouse does not perform its protection function and these stocks have a negative impact upon the remaining solid timber. Drying chambers are not completely utilized and their dislocation causes additional cost. We prepared three solutions to solve the existing situation: a transfer of drying chambers, reconstruction of the warehouse area and investment into a new packing&sorting line. We selected a sum of all three versions. Drying chambers would be better utilized, there would be more quality dried timber. The packing&sorting line would contribute to a better formation of packages and to a more efficient storage. A reconstructed warehouse area would ensure good traceability and it would preserve the quality of sawn timber. This would also reduce costs, increase efficiency and quality, and promote the whole process.

Advisors/Committee Members: Potrč, Iztok.

Subjects/Keywords: Skladiščno poslovanje; žagani les; sušilnice; sledenje; logistična analiza; zložaj.; Warehouse operations; sawn timber; drying chambers; tracing; logistics analysis; package.; info:eu-repo/classification/udc/005.51+658.7(043.2)

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Gros, U. (2013). Raziskava možnih izboljšav skladiščnega poslovanja žaganega lesa v izbranem podjetju. (Masters Thesis). Univerza v Mariboru. Retrieved from https://dk.um.si/IzpisGradiva.php?id=40623 ; https://dk.um.si/Dokument.php?id=55676&dn= ; https://plus.si.cobiss.net/opac7/bib/512525373?lang=sl

Chicago Manual of Style (16^th Edition):

Gros, Urška. “Raziskava možnih izboljšav skladiščnega poslovanja žaganega lesa v izbranem podjetju.” 2013. Masters Thesis, Univerza v Mariboru. Accessed January 15, 2021. https://dk.um.si/IzpisGradiva.php?id=40623 ; https://dk.um.si/Dokument.php?id=55676&dn= ; https://plus.si.cobiss.net/opac7/bib/512525373?lang=sl.

MLA Handbook (7^th Edition):

Gros, Urška. “Raziskava možnih izboljšav skladiščnega poslovanja žaganega lesa v izbranem podjetju.” 2013. Web. 15 Jan 2021.

Vancouver:

Gros U. Raziskava možnih izboljšav skladiščnega poslovanja žaganega lesa v izbranem podjetju. [Internet] [Masters thesis]. Univerza v Mariboru; 2013. [cited 2021 Jan 15]. Available from: https://dk.um.si/IzpisGradiva.php?id=40623 ; https://dk.um.si/Dokument.php?id=55676&dn= ; https://plus.si.cobiss.net/opac7/bib/512525373?lang=sl.

Council of Science Editors:

Gros U. Raziskava možnih izboljšav skladiščnega poslovanja žaganega lesa v izbranem podjetju. [Masters Thesis]. Univerza v Mariboru; 2013. Available from: https://dk.um.si/IzpisGradiva.php?id=40623 ; https://dk.um.si/Dokument.php?id=55676&dn= ; https://plus.si.cobiss.net/opac7/bib/512525373?lang=sl

University of Canterbury

14. Satchell, Stuart Dean. Evaluating profitability of solid timber production from 15 year old pruned and thinned Eucalyptus nitens (Deane & Maiden) in Canterbury.

Degree: Master of Forestry Science, Forestry, 2015, University of Canterbury

URL: http://dx.doi.org/10.26021/1396

► This case study investigated profitability of a small stand of fast-grown Eucalyptus nitens in Canterbury for sawn timber production. This stand was pruned and thinned… (more)

Subjects/Keywords: Eucalytus; nitens; solid timber; sawn; products; profitability; degrade; residual value; return on investment; economics; case study; flooring; processing; checking; collapse; log position; prices; grading; value; solid timber production

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Satchell, S. D. (2015). Evaluating profitability of solid timber production from 15 year old pruned and thinned Eucalyptus nitens (Deane & Maiden) in Canterbury. (Masters Thesis). University of Canterbury. Retrieved from http://dx.doi.org/10.26021/1396

Chicago Manual of Style (16^th Edition):

Satchell, Stuart Dean. “Evaluating profitability of solid timber production from 15 year old pruned and thinned Eucalyptus nitens (Deane & Maiden) in Canterbury.” 2015. Masters Thesis, University of Canterbury. Accessed January 15, 2021. http://dx.doi.org/10.26021/1396.

MLA Handbook (7^th Edition):

Satchell, Stuart Dean. “Evaluating profitability of solid timber production from 15 year old pruned and thinned Eucalyptus nitens (Deane & Maiden) in Canterbury.” 2015. Web. 15 Jan 2021.

Vancouver:

Satchell SD. Evaluating profitability of solid timber production from 15 year old pruned and thinned Eucalyptus nitens (Deane & Maiden) in Canterbury. [Internet] [Masters thesis]. University of Canterbury; 2015. [cited 2021 Jan 15]. Available from: http://dx.doi.org/10.26021/1396.

Council of Science Editors:

Satchell SD. Evaluating profitability of solid timber production from 15 year old pruned and thinned Eucalyptus nitens (Deane & Maiden) in Canterbury. [Masters Thesis]. University of Canterbury; 2015. Available from: http://dx.doi.org/10.26021/1396

University of Helsinki

15. Lehtola, Matti. Turkki Suomen sahateollisuuden markkina-alueena: Turkey as a market for the Finnish sawmill industry.

Degree: Department of Forest Sciences; Helsingfors universitet, Agrikultur- och forstvetenskapliga fakulteten, Institutionen för skogsvetenskaper, 2014, University of Helsinki

URL: http://hdl.handle.net/10138/135507

► Finland’s sawmill industry is under a transformation, that can be viewed as a kind of a process of creative destruction, where the industry is deformed… (more)

▼ Finland’s sawmill industry is under a transformation, that can be viewed as a kind of a process of creative destruction, where the industry is deformed by the changing surrounding circumstances. Behind these changing surroundings are especially the trends that shape global business environment and which are affecting the demand and supply of Finnish sawn timber products. The export of Finnish softwood sawn timber has grown the last few years due to the rise in global demand for sawn timber, but the growth of the export has come from outside of traditional export market, Europe. Due to the low demand in the traditional Finland’s export countries of sawn timber, eyes have moved towards new market areas. As an example of this is this study, which started from the desire of the finnish sawmill industry to gain information of a new market, Turkey. In this study a broad picture of Turkey’s softwood sawn timber markets is given with a close look at the potential customer segments, their geographical location and preferencies for sawn timber. Also the demand trends and factors affecting the demand of sawn timber products are covered. The theoretical framework of the study is based on the Information Environment model by Juslin and Hasen and also on the study of Leonidou about different trade obstacles (1995). Both have also affected to the collection of both secondary data and interview material. For this study several Finnish and Turkish sawmill industry professionals from different stakeholder groups have been interviewed. This study is based primarily on qvalitative research that has utilized statistical data. Finland has exported a very narrow product pallette to Turkey, consisting mostly of high quality redwood sawn timber, especially of knotless sideboards. Behind this narrow palette are multiple factors e.g. keen competition and lack of wooden construction. Already at present, Turkey is an important market for the Finnish sawmills as the export quantities have rosen rapidly. Based on the findings of this study one can speculate that the growth rate of the export of sawn timber from Finland to Turkey is decreasing, especially due to the narrow product palette. However, Finnish sawn timber is relatively new in the market and it has reached only some areas of Turkey.

Subjects/Keywords: sawn timber; products with high demand; export barriers; PEST- analysis; thematic interviews of marketing channels; Turkey's sawn timber market; sahatavara; Turkin sahatavaramarkkinat; kysytyt tuotteet; viennin esteet; PEST-analyysi; markkinointikanavien teemahaastattelut; Skogsekonomi och marknadsföring (skogsindustrins marknadsföring och ledning); Forest Economics and Marketing; Metsäekonomia ja markkinointi (metsäteollisuuden markkinointi ja johtaminen)

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Lehtola, M. (2014). Turkki Suomen sahateollisuuden markkina-alueena: Turkey as a market for the Finnish sawmill industry. (Masters Thesis). University of Helsinki. Retrieved from http://hdl.handle.net/10138/135507

Chicago Manual of Style (16^th Edition):

Lehtola, Matti. “Turkki Suomen sahateollisuuden markkina-alueena: Turkey as a market for the Finnish sawmill industry.” 2014. Masters Thesis, University of Helsinki. Accessed January 15, 2021. http://hdl.handle.net/10138/135507.

MLA Handbook (7^th Edition):

Lehtola, Matti. “Turkki Suomen sahateollisuuden markkina-alueena: Turkey as a market for the Finnish sawmill industry.” 2014. Web. 15 Jan 2021.

Vancouver:

Lehtola M. Turkki Suomen sahateollisuuden markkina-alueena: Turkey as a market for the Finnish sawmill industry. [Internet] [Masters thesis]. University of Helsinki; 2014. [cited 2021 Jan 15]. Available from: http://hdl.handle.net/10138/135507.

Council of Science Editors:

Lehtola M. Turkki Suomen sahateollisuuden markkina-alueena: Turkey as a market for the Finnish sawmill industry. [Masters Thesis]. University of Helsinki; 2014. Available from: http://hdl.handle.net/10138/135507

Swedish University of Agricultural Sciences

16. Hai, Phi Hong. Genetic improvement of plantation-grown Acacia auriculiformis for sawn timber production.

Degree: 2009, Swedish University of Agricultural Sciences

URL: http://pub.epsilon.slu.se/2074/

► Breeding of Acacia auriculiformis A.Cunn. ex Benth in Vietnam, which commenced in 1996, has focused to date on improving tree growth and stem straightness. Little… (more)

▼ Breeding of Acacia auriculiformis A.Cunn. ex Benth in Vietnam, which commenced in 1996, has focused to date on improving tree growth and stem straightness. Little attention has been paid to important properties of wood such as basic density, shrinkage, bending stiffness and strength, which determine suitability for specific end-use applications. The aim of the studies reported here was to obtain knowledge of genetic factors associated with wood traits and their relationships with growth and tree form, in order to facilitate improvement of A. auriculiformis for sawn timber production. Empirical data were gathered in a progeny test, three clonal tests and three genetic gain tests in four provinces of Vietnam. Genetic parameters for the studied traits were estimated at ages ranging from 3 to 9 years. The results showed that individual within-provenance heritabilities (h2) and clonal repeatabilities (H2) for growth, stem straightness, basic density and shrinkage increased with age, but those for mechanical properties were stable with age. In the progeny test, h2 ranged from 0.36 to 0.39 for growth traits, 0.40-0.61 for density and 0.12–0.31 for stem straightness. In clonal tests, H2 ranged from 0.21 to 0.56 for growth traits, 0.16-0.38 for shrinkage traits, and 0.21-0.57 for mechanical properties. Growth and wood properties had coefficients of additive genetic variation (CVA) and genotypic variation (CVG) ranging from 5-12%. High age-age correlations for most studied traits were found, suggesting that there would be more gain per unit time by selecting trees at 3 to 4 years old than at greater ages. Growth traits showed consistent positive genetic correlations with stem straightness, but non-significant correlations with wood properties, except for a significant negative correlation between diameter and stiffness. Genotype by environment interaction was important for growth and stem straightness in clone trials across southern, central-north and northern Vietnam, but not important for a number of improved and unimproved seedlots compared in genetic gain trials across northern, central-north and central Vietnam. Predicted and realised gains for growth were substantial for seed orchard seedlots produced by the current breeding program, compared with natural-provenance and local commercial control seedlots. Good gains in growth and form traits and wood properties could be obtained from clonal selection, although the absence of strong, favourable correlations between growth and wood properties indicates that gains for individual traits would be reduced if a multi-trait improvement approach was adopted. The findings clearly demonstrate that there is potential to improve tree growth, stem straightness, wood density, shrinkage and mechanical properties of A. auriculiformis in Vietnam.

Subjects/Keywords: acacia auriculiformis; timber trees; wood properties; genotype environment interaction; genetic correlation; genetic gain; heritability; viet nam; Acacia auriculiformis; correlated response; genetic correlation; genotype by environment interaction; genetic gain; heritability; sawn timber; wood property

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Hai, P. H. (2009). Genetic improvement of plantation-grown Acacia auriculiformis for sawn timber production. (Doctoral Dissertation). Swedish University of Agricultural Sciences. Retrieved from http://pub.epsilon.slu.se/2074/

Chicago Manual of Style (16^th Edition):

Hai, Phi Hong. “Genetic improvement of plantation-grown Acacia auriculiformis for sawn timber production.” 2009. Doctoral Dissertation, Swedish University of Agricultural Sciences. Accessed January 15, 2021. http://pub.epsilon.slu.se/2074/.

MLA Handbook (7^th Edition):

Hai, Phi Hong. “Genetic improvement of plantation-grown Acacia auriculiformis for sawn timber production.” 2009. Web. 15 Jan 2021.

Vancouver:

Hai PH. Genetic improvement of plantation-grown Acacia auriculiformis for sawn timber production. [Internet] [Doctoral dissertation]. Swedish University of Agricultural Sciences; 2009. [cited 2021 Jan 15]. Available from: http://pub.epsilon.slu.se/2074/.

Council of Science Editors:

Hai PH. Genetic improvement of plantation-grown Acacia auriculiformis for sawn timber production. [Doctoral Dissertation]. Swedish University of Agricultural Sciences; 2009. Available from: http://pub.epsilon.slu.se/2074/

Swedish University of Agricultural Sciences

17. Hallingbäck, Henrik. Genetic improvement of shape stability in Norway spruce and Scots pine sawn timber.

Degree: 2010, Swedish University of Agricultural Sciences

URL: http://pub.epsilon.slu.se/2241/

► Poor shape stability of sawn softwood timber, causes substantial economic losses for sawmills and the building industry. Sawn timber twist is regarded to be the… (more)

▼ Poor shape stability of sawn softwood timber, causes substantial economic losses for sawmills and the building industry. Sawn timber twist is regarded to be the most severe deformation and has been shown to be controlled by intrinsic wood properties like wood shrinkage and spiral grain angle. The aim of the studies this thesis is based upon was to investigate the possibility to improve sawn timber shape stability, by genetic selection of genotypes of Norway spruce (Picea abies L. Karst.) and Scots pine (Pinus sylvestris L.) with a favourable spiral grain angle. Genetic parameters were estimated for the spiral grain angle in the mature wood of trees in four progeny trials (age 27–36 years) and two clonal trials (age 19 years) of Norway spruce. In addition, in a 36-year-old Scots pine progeny trial, the grain angle was measured and shape stability traits of the boards sawn from sampled trees were assessed. The estimates of genetic standard deviation (0.7°–0.9°) and heritability (0.29–0.42) in the mature wood of both species suggested that grain angle could be altered by genetic selection. The grain angle measured in single annual rings of Scots pine showed substantial phenotypic correlations (0.54–0.70) with the twist of small sawn timber dried to a 12% moisture content. As an example, twist could potentially be reduced by 0.3°–0.7° by selecting 20% of the parents displaying the lowest grain angle, thereby appreciably decreasing the percentage of excessively twisted boards. Grain angle under bark exhibited non-significant genetic correlations, close to zero, with growth traits, stem form, and branch traits in both species, and with pilodyn penetration in Norway spruce, suggesting that genetic selection for this trait would not generate any appreciable response in the other traits. The results of the studies imply that the grain angle measured under bark is utilisable in terms of genetic parameter estimation and for predicting the twist propensity of small sawn timber. This suggests that there is potential to improve sawn timber shape stability by genetic selection for a lower grain angle under bark and thus reducing the twist of sawn timber.

Subjects/Keywords: picea abies; pinus sylvestris; forest trees; genetic variation; heritability; sawnwood; wood properties; wood defects; forest genetics; genetic variation; heritability; Picea abies; Pinus sylvestris; sawn timber; spiral grain; twist; warp; wood properties

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Hallingbäck, H. (2010). Genetic improvement of shape stability in Norway spruce and Scots pine sawn timber. (Doctoral Dissertation). Swedish University of Agricultural Sciences. Retrieved from http://pub.epsilon.slu.se/2241/

Chicago Manual of Style (16^th Edition):

Hallingbäck, Henrik. “Genetic improvement of shape stability in Norway spruce and Scots pine sawn timber.” 2010. Doctoral Dissertation, Swedish University of Agricultural Sciences. Accessed January 15, 2021. http://pub.epsilon.slu.se/2241/.

MLA Handbook (7^th Edition):

Hallingbäck, Henrik. “Genetic improvement of shape stability in Norway spruce and Scots pine sawn timber.” 2010. Web. 15 Jan 2021.

Vancouver:

Hallingbäck H. Genetic improvement of shape stability in Norway spruce and Scots pine sawn timber. [Internet] [Doctoral dissertation]. Swedish University of Agricultural Sciences; 2010. [cited 2021 Jan 15]. Available from: http://pub.epsilon.slu.se/2241/.

Council of Science Editors:

Hallingbäck H. Genetic improvement of shape stability in Norway spruce and Scots pine sawn timber. [Doctoral Dissertation]. Swedish University of Agricultural Sciences; 2010. Available from: http://pub.epsilon.slu.se/2241/

18. Rodrigues, Rodrigo Augusto Dias. Variabilidade de propriedades físico-mecânicas em lotes de madeira serrada de eucalipto para a construção civil.

Degree: Mestrado, Ciência e Tecnologia de Madeiras, 2002, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/11/11149/tde-07022003-074715/ ;

►

O gênero Eucalyptus vem alcançando boa posição no mercado de madeira sólida, devido à sua alta produtividade em madeira de qualidade mecânica satisfatória, que redunda… (more)

▼

O gênero Eucalyptus vem alcançando boa posição no mercado de madeira sólida, devido à sua alta produtividade em madeira de qualidade mecânica satisfatória, que redunda em grande disponibilidade de matéria prima para a construção civil. A atualização da norma brasileira para projetos de estruturas de madeira (NBR 7190/97), introduziu modificações importantes como a proposição de classes de resistência para as propriedades da madeira, metodologias melhores fundamentadas para execução de ensaios de caracterização e condições mais concretas de verificação da segurança das estruturas quanto aos seus estados limites. No presente trabalho foram utilizados doze lotes de madeira serrada de eucalipto comercializadas na forma de vigas, onde foram estudadas as propriedades físicas e mecânicas da madeira para a classificação dos lotes nas classes de resistência propostas pela norma. Para a densidade básica e densidade aparente, os lotes se enquadraram nas quatro classes indicadas na norma NBR 7190/97 (C20, C30, C40 e C60). Para resistência à compressão paralela às fibras cinco lotes qualificaram-se na classe C40 e sete lotes na classe superior C60. Em relação ao módulo de elasticidade na compressão paralela às fibras um lote se enquadrou na classe inferior C20, 2 lotes na classe C30, seis lotes na classe C40 e três na classe C60. Para a resistência ao cisalhamento um lote se enquadrou na classe C40 e os demais na classe C60. Pôde-se verificar que os lotes de madeira serrada não podem ser diretamente classificados em uma mesma classe de resistência por todas as mecânicas da madeira.

The Eucalyptus genus has been reaching good position in the solid wood market due to its high productivity in wood of satisfactory mechanical quality, providing great availability for the building construction. The up date of the Brazilian Norm for projects of wood structures (NBR 7190/97), has introduced important modifications as the proposition of resistance grades for the properties of the wood, better methodologies for permitting the wood characterization and more concrete conditions to evaluate the structures safety in relation to its limit conditions. In the present work twelve lots of sawn wood of eucalyptus marketed in the form of beams were used for studying physical and mechanical properties of wood in order to classify the lots in the grade classes of mechanical quality proposed by the norm. It was verified that a set of wood cannot be directly classified into the same quality class according to all wood characteristics.

Advisors/Committee Members: Garcia, Jose Nivaldo.

Subjects/Keywords: cicil construction; construção civil; estrutura da madeira; eucalipto; eucalypt; madeira serrada; sawn wood; tecnologia da madeira.; wood technology.; wooden structure

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Rodrigues, R. A. D. (2002). Variabilidade de propriedades físico-mecânicas em lotes de madeira serrada de eucalipto para a construção civil. (Masters Thesis). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/11/11149/tde-07022003-074715/ ;

Chicago Manual of Style (16^th Edition):

Rodrigues, Rodrigo Augusto Dias. “Variabilidade de propriedades físico-mecânicas em lotes de madeira serrada de eucalipto para a construção civil.” 2002. Masters Thesis, University of São Paulo. Accessed January 15, 2021. http://www.teses.usp.br/teses/disponiveis/11/11149/tde-07022003-074715/ ;.

MLA Handbook (7^th Edition):

Rodrigues, Rodrigo Augusto Dias. “Variabilidade de propriedades físico-mecânicas em lotes de madeira serrada de eucalipto para a construção civil.” 2002. Web. 15 Jan 2021.

Vancouver:

Rodrigues RAD. Variabilidade de propriedades físico-mecânicas em lotes de madeira serrada de eucalipto para a construção civil. [Internet] [Masters thesis]. University of São Paulo; 2002. [cited 2021 Jan 15]. Available from: http://www.teses.usp.br/teses/disponiveis/11/11149/tde-07022003-074715/ ;.

Council of Science Editors:

Rodrigues RAD. Variabilidade de propriedades físico-mecânicas em lotes de madeira serrada de eucalipto para a construção civil. [Masters Thesis]. University of São Paulo; 2002. Available from: http://www.teses.usp.br/teses/disponiveis/11/11149/tde-07022003-074715/ ;

19. Lima, Israel Luiz de. Influência do desbaste e da adubação na qualidade da madeira serrada de Eucalyptus grandis Hill ex-Maiden.

Degree: PhD, Recursos Florestais, 2005, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/11/11150/tde-20072005-154922/ ;

►

O presente trabalho teve como objetivo geral estudar a influência do manejo florestal no rendimento e na qualidade tecnológica da madeira serrada de uma população… (more)

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O presente trabalho teve como objetivo geral estudar a influência do manejo florestal no rendimento e na qualidade tecnológica da madeira serrada de uma população plantada de Eucalyptus grandis, de 21 anos de idade, manejada pelo sistema de desbastes seletivos com aplicação de fertilizantes na época do início dos desbastes. Os fatores utilizados foram três intensidades de desbastes seletivos (37, 50 e 75%), presença ou ausência de fertilizantes, três classes de diâmetro e três posições verticais ao longo da altura do fuste comercial.As influências dos fatores e de suas combinações nas tensões de crescimento das árvores foram avaliadas de forma indireta através das rachaduras de extremidade de tora, rachadura de extremidade de tábua úmidas e secas, encurvamento e arqueamento de tábua úmida e deslocamento da medula em relação à sua normal posição central. Foram avaliadas, também, porcentagem de casca e conicidade de toras, que são variáveis que interferem no rendimento em madeira serrada; massa específica da madeira à umidade de equilíbrio ao ar; módulo de elasticidade estrutural na flexão estática não destrutiva, determinado em tábuas secas de dimensões comerciais e um sistema de classificação de tábuas segundo diferentes classes de qualidade. O deslocamento da medula, conicidade, porcentagem de casca e o índice de rachaduras de topo de tora não sofreram nenhuma influência significativa dos fatores desbaste, adubação e classe de diâmetro. As rachaduras de extremidade de tábua serrada seca ou verde, encurvamento, arqueamento e o módulo de elasticidade estrutural sofreram influências dos fatores desbaste, adubação e classe de diâmetro em algumas situações específicas. O índice de rachadura de tábuas serrada verde ou seca diminui da medula para a casca enquanto que o encurvamento de peça serrada e o módulo de elasticidade estrutural aumentam da medula para a casca. O arqueamento das tábuas não apresenta nenhuma tendência de variação ao longo do raio da tora. A metodologia não destrutiva utilizada para avaliação do módulo de elasticidade estrutural à flexão estática demonstrou-se ser simples, prática e eficiente.Na classificação das tábuas serradas foi constatado que a posição relativa da tábua no raio interfere nas classes de qualidade da madeira. A freqüência de tábuas de 1ª classe aumenta da medula para a casca enquanto que as tábuas de refugo diminuem da medula para casca. A massa específica da madeira à umidade de equilíbrio ao ar sofreu influência do fator adubo e aumenta significativamente da medula para a casca. A intensidade de 75% de desbaste propiciou, de maneira geral, maior homogeneidade de qualidade da madeira ao longo do raio. Observa-se boas relações positivas entre rachadura de tábua seca e rachadura de tábua verde, mas a melhor relação foi observada entre o rendimento em madeira serrada seca e o rendimento em madeira serrada verde com destopo.

The study had the general objective of studying the influence of forest thinning on the some yield and technological quality indicators of sawn wood from…

Advisors/Committee Members: Garcia, Jose Nivaldo.

Subjects/Keywords: desbaste; eucalipto; eucalypts; fertilizante; fertilizer; madeira serrada; management; manejo; rachadura; sawn wood; splitting; tecnologia da madeira; thinning; wood technology

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Lima, I. L. d. (2005). Influência do desbaste e da adubação na qualidade da madeira serrada de Eucalyptus grandis Hill ex-Maiden. (Doctoral Dissertation). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/11/11150/tde-20072005-154922/ ;

Chicago Manual of Style (16^th Edition):

Lima, Israel Luiz de. “Influência do desbaste e da adubação na qualidade da madeira serrada de Eucalyptus grandis Hill ex-Maiden.” 2005. Doctoral Dissertation, University of São Paulo. Accessed January 15, 2021. http://www.teses.usp.br/teses/disponiveis/11/11150/tde-20072005-154922/ ;.

MLA Handbook (7^th Edition):

Lima, Israel Luiz de. “Influência do desbaste e da adubação na qualidade da madeira serrada de Eucalyptus grandis Hill ex-Maiden.” 2005. Web. 15 Jan 2021.

Vancouver:

Lima ILd. Influência do desbaste e da adubação na qualidade da madeira serrada de Eucalyptus grandis Hill ex-Maiden. [Internet] [Doctoral dissertation]. University of São Paulo; 2005. [cited 2021 Jan 15]. Available from: http://www.teses.usp.br/teses/disponiveis/11/11150/tde-20072005-154922/ ;.

Council of Science Editors:

Lima ILd. Influência do desbaste e da adubação na qualidade da madeira serrada de Eucalyptus grandis Hill ex-Maiden. [Doctoral Dissertation]. University of São Paulo; 2005. Available from: http://www.teses.usp.br/teses/disponiveis/11/11150/tde-20072005-154922/ ;

University of Alberta

20. Raddysh, Holly K. The depositional history of the Upper Givetian Slave Point Formation at Sawn Lake Field, Alberta, Canada.

Degree: MS, Department of Geology, 1992, University of Alberta

URL: https://era.library.ualberta.ca/files/m326m421j

Subjects/Keywords: Geology, Stratigraphic – Devonian.; Carbonate rocks – Alberta – Sawn Lake Field Region.; Slave Point Formation (Alta.)

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APA (6^th Edition):

Raddysh, H. K. (1992). The depositional history of the Upper Givetian Slave Point Formation at Sawn Lake Field, Alberta, Canada. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/m326m421j

Chicago Manual of Style (16^th Edition):

Raddysh, Holly K. “The depositional history of the Upper Givetian Slave Point Formation at Sawn Lake Field, Alberta, Canada.” 1992. Masters Thesis, University of Alberta. Accessed January 15, 2021. https://era.library.ualberta.ca/files/m326m421j.

MLA Handbook (7^th Edition):

Raddysh, Holly K. “The depositional history of the Upper Givetian Slave Point Formation at Sawn Lake Field, Alberta, Canada.” 1992. Web. 15 Jan 2021.

Vancouver:

Raddysh HK. The depositional history of the Upper Givetian Slave Point Formation at Sawn Lake Field, Alberta, Canada. [Internet] [Masters thesis]. University of Alberta; 1992. [cited 2021 Jan 15]. Available from: https://era.library.ualberta.ca/files/m326m421j.

Council of Science Editors:

Raddysh HK. The depositional history of the Upper Givetian Slave Point Formation at Sawn Lake Field, Alberta, Canada. [Masters Thesis]. University of Alberta; 1992. Available from: https://era.library.ualberta.ca/files/m326m421j

21. ΣΚΑΡΒΕΛΗΣ, ΜΙΧΑΛΗΣ. ΞΗΡΑΝΣΗ ΠΡΙΣΤΗΣ ΞΥΛΕΙΑΣ ΜΕ ΑΞΙΟΠΟΙΗΣΗ ΗΛΙΑΚΗΣ ΕΝΕΡΓΕΙΑΣ.

Degree: 1996, Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (ΑΠΘ); Aristotle University Of Thessaloniki (AUTH)

URL: http://hdl.handle.net/10442/hedi/9035

►

ΣΕ ΕΝΑ ΗΛΙΑΚΟ ΞΗΡΑΝΤΗΡΙΟ, ΜΕ ΕΞΩΤΕΡΙΚΟΥΣ ΣΥΛΛΕΚΤΕΣ ΔΥΝΑΜΙΚΟΤΗΤΑΣ 3,5 M³, ΞΗΡΑΝΘΗΚΕ ΠΡΙΣΤΗ ΞΥΛΕΙΑ ΔΙΑΦΟΡΩΝ ΕΛΛΗΝΙΚΩΝ ΔΑΣΟΠΟΝΙΚΩΝ ΕΙΔΩΝ. ΟΙ ΧΡΟΝΟΙ ΞΗΡΑΝΣΗΣ ΚΑΙ Η ΠΟΙΟΤΗΤΑ ΣΥΓΚΡΙΝΟΝΤΑΙ ΜΕ… (more)

Subjects/Keywords: SAWN TIMBER; SOLAR DRYING; Solar energy; Ανανεώσιμες πηγές ενέργειας; Ηλιακή ενέργεια; ΗΛΙΑΚΗ ΞΗΡΑΝΣΗ; ΠΡΙΣΤΗ ΞΥΛΕΙΑ; ΣΦΑΛΜΑΤΑ ΞΗΡΑΝΣΗΣ; Τεχνολογία ξύλου

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

ΣΚΑΡΒΕΛΗΣ, �. (1996). ΞΗΡΑΝΣΗ ΠΡΙΣΤΗΣ ΞΥΛΕΙΑΣ ΜΕ ΑΞΙΟΠΟΙΗΣΗ ΗΛΙΑΚΗΣ ΕΝΕΡΓΕΙΑΣ. (Thesis). Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (ΑΠΘ); Aristotle University Of Thessaloniki (AUTH). Retrieved from http://hdl.handle.net/10442/hedi/9035

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

ΣΚΑΡΒΕΛΗΣ, ΜΙΧΑΛΗΣ. “ΞΗΡΑΝΣΗ ΠΡΙΣΤΗΣ ΞΥΛΕΙΑΣ ΜΕ ΑΞΙΟΠΟΙΗΣΗ ΗΛΙΑΚΗΣ ΕΝΕΡΓΕΙΑΣ.” 1996. Thesis, Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (ΑΠΘ); Aristotle University Of Thessaloniki (AUTH). Accessed January 15, 2021. http://hdl.handle.net/10442/hedi/9035.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

ΣΚΑΡΒΕΛΗΣ, ΜΙΧΑΛΗΣ. “ΞΗΡΑΝΣΗ ΠΡΙΣΤΗΣ ΞΥΛΕΙΑΣ ΜΕ ΑΞΙΟΠΟΙΗΣΗ ΗΛΙΑΚΗΣ ΕΝΕΡΓΕΙΑΣ.” 1996. Web. 15 Jan 2021.

Vancouver:

ΣΚΑΡΒΕΛΗΣ �. ΞΗΡΑΝΣΗ ΠΡΙΣΤΗΣ ΞΥΛΕΙΑΣ ΜΕ ΑΞΙΟΠΟΙΗΣΗ ΗΛΙΑΚΗΣ ΕΝΕΡΓΕΙΑΣ. [Internet] [Thesis]. Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (ΑΠΘ); Aristotle University Of Thessaloniki (AUTH); 1996. [cited 2021 Jan 15]. Available from: http://hdl.handle.net/10442/hedi/9035.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

ΣΚΑΡΒΕΛΗΣ �. ΞΗΡΑΝΣΗ ΠΡΙΣΤΗΣ ΞΥΛΕΙΑΣ ΜΕ ΑΞΙΟΠΟΙΗΣΗ ΗΛΙΑΚΗΣ ΕΝΕΡΓΕΙΑΣ. [Thesis]. Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (ΑΠΘ); Aristotle University Of Thessaloniki (AUTH); 1996. Available from: http://hdl.handle.net/10442/hedi/9035

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Stellenbosch University

22. Dowse, George Patrick. Selected mechanical properties and the structural grading of young Pinus patula sawn timber.

Degree: MScFor (Dept. of Forest and Wood Science, Forest and Wood Science, 2010, Stellenbosch University

URL: http://hdl.handle.net/10019.1/5341

► ENGLISH ABSTRACT: In this study 1345 pieces of 38x114 mm timber sawn from 16-20 year-old Pinus patula trees were obtained from a wide variety of… (more)

▼ ENGLISH ABSTRACT: In this study 1345 pieces of 38x114 mm timber sawn from 16-20 year-old Pinus patula trees were obtained from a wide variety of sites along the Mpumalanga escarpment in South Africa. The samples were tested for various mechanical and physical properties. The objectives of this study were (1) to determine the variation in the bending strength, tension strength, and stiffness of the sawn timber, (2) to assess the efficiency of the current visual and mechanical grading rules on this sample, and (3) to evaluate the potential of some indicator properties to be used as structural grading parameters on this resource. A large number of non-destructive measurements were performed on all the samples, including scanning of the boards with a commercial X-ray density scanner, moisture content measurement, growth ring measurements, warp measurement, acoustic frequency measurement and measurement of the stiffness using a mechanical grader. The data from the X-ray density scanner was used to calculate a number of knot-related variables for each board. Visual grading according to the SANS 1783-2 (2005) specifications for structural timber was performed by a certified grader on all the boards. The timber was divided into two groups for destructive testing, one group each for bending and tension tests. Tests were conducted according to the SANS 6122 (1994) method for in-grade testing. Due to the sampling method followed, the destructive tests effectively used a random placement of defects with regard to the load application position. From the destructive tests the modulus of elasticity (MOEedge), bending strength (MOR) and tensile strength were determined. The study showed that the MOEedge of the sawn timber was far below the requirements of the current national standard (SANS 10163-1) for all of the visual and mechanical grades. The mean MOEedge of the visually graded S5 timber was about 30% lower than required. The 5th percentile values for bending strength of all the visual and mechanical grades were above the required values of SANS 10163-1. The 5th percentile values for tensile strength of all the visual and mechanical grades were similar to that required by the SANS 10163-1 standard. Correlations between flatwise measured MOE (MOEflat) and edgewise measured MOE (MOEedge) were smaller than expected, as well as the correlations between both MOEedge and MOEflat with MOR. Dynamic MOE (MOEdyn), calculated from acoustic frequency tests on the timber, was found to be the best single predictor of MOEedge, MOR and tension strength. Multiple regression analysis showed that a combination of MOEdyn, density and knot parameters can be used to improve the predictability of some of the strength and stiffness characteristics of the timber. It is recommended that a comprehensive study on the structural grading of SA Pine be performed which includes (1) an analysis of market requirements in terms of strength and stiffness properties of timber, (2) in-grade testing of a representative sample of structural timber in South… Advisors/Committee Members: Wessels, Brand, University of Stellenbosch. Faculty of Agrisciences. Dept. of Forest and Wood Science..

Subjects/Keywords: Forest and wood science; Pinus patula – Mechanical properties; Pinus patula – Physical properties; Sawn timber

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Dowse, G. P. (2010). Selected mechanical properties and the structural grading of young Pinus patula sawn timber. (Masters Thesis). Stellenbosch University. Retrieved from http://hdl.handle.net/10019.1/5341

Chicago Manual of Style (16^th Edition):

Dowse, George Patrick. “Selected mechanical properties and the structural grading of young Pinus patula sawn timber.” 2010. Masters Thesis, Stellenbosch University. Accessed January 15, 2021. http://hdl.handle.net/10019.1/5341.

MLA Handbook (7^th Edition):

Dowse, George Patrick. “Selected mechanical properties and the structural grading of young Pinus patula sawn timber.” 2010. Web. 15 Jan 2021.

Vancouver:

Dowse GP. Selected mechanical properties and the structural grading of young Pinus patula sawn timber. [Internet] [Masters thesis]. Stellenbosch University; 2010. [cited 2021 Jan 15]. Available from: http://hdl.handle.net/10019.1/5341.

Council of Science Editors:

Dowse GP. Selected mechanical properties and the structural grading of young Pinus patula sawn timber. [Masters Thesis]. Stellenbosch University; 2010. Available from: http://hdl.handle.net/10019.1/5341

Uppsala University

23. Rosendal, Linnea. Biogent kol i träbaserade produkter från svensk skogsindustri och kolets inbindningstid : En analys av potentialen att öka inbindningstiden i det årliga tillskottet av produkter.

Degree: Earth Sciences, 2020, Uppsala University

URL: http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-415431

►

Nivåerna av växthusgaser i atmosfären har ökat drastiskt de senaste århundradet, till följd av mänsklig aktivitet. Det krävs en stor omställning för oss människor… (more)

▼

Nivåerna av växthusgaser i atmosfären har ökat drastiskt de senaste århundradet, till följd av mänsklig aktivitet. Det krävs en stor omställning för oss människor om klimatförändringarna ska motverkas och för att konsekvenserna för planeten inte ska bli allt för stora. Koldioxid är en av de viktigaste växthusgaserna och skogen är en viktig del i balansen av koldioxid i atmosfären genom att växter och träd binder in koldioxid och lagrar biogent kol i biomassan. Rundvirke kan användas för att producera en mängd olika produkter med olika användningsområden och varierande livslängd och det finns både globala och nationella mål som stödjer ett arbete för en minskad klimatpåverkan med skogens resurser som verktyg. Syftet med examensarbetet var att analysera inbindningen av biogent kol i det årliga tillskottet av träbaserade produkter från svensk skogsindustri, för att sedan undersöka potentialen att öka tiden för inbindning av det biogena kolet. FN:s klimatpanel (IPCC) har tagit fram en generell metod för att beräkna lagringen av kol i skördade träprodukter och beräkningarna bygger på tre produktkategorier, vilka är sågade trävaror, spånskivor och papper och kartong. Detta examensarbete har utvidgat FN:s klimatrapportering genom att studera totalt sexton produktkategorier. Flödet av biogent kol studerades genom en materialflödesanalys, som bygger på massbalans mellan ”inputs” och ”outputs” i ett system. Systemet studerades från det att råvara förbrukas till dess att produkterna går som avfall och förbränns. Statistik över råvaruförbrukning inom sågverksindustrin och massaindustrin, samt produktionsmängd av fibermassa och träbaserade produkter användes i analysen. En stor volym biomassa går dessutom direkt till förbränning och ger bioenergi. Resultatet visade att sågade trävaror från sågverksindustrin har längst medellivslängd och binder även in störst mängd biogent kol. Biobränslen har kortast medellivslängd, och koldioxid frigörs till atmosfären på mycket kortast tid. Enligt detta examensarbete innehåller träbaserade produkter från Sverige 29,0 miljoner ton koldioxid årligen. Tre strategier att förlänga inbindningstiden av biogent kol studerades, vilka är förlängd livslängd för produkter, kaskadanvändning och Bio-Energy with Carbon Capture and Storage (BECCS). Att förlänga livslängden för produkter innebär att återvinning av exempelvis cellulosabaserade textilier införs. Kaskadanvändning innebär att skogsindustrin primärt ska producera långlivade produkter och undvika att biomassa direkt går till förbränning. BECCS bygger på att träden binder in kol i sin biomassa och när en träbaserad produkt förbränns pressas frigjord koldioxid ned i marken och lagras. BECCS bedöms vara den strategi som är mest avancerad.

The levels of greenhouse gases have increased drastically over the past hundred years as a result of human activity. Major actions are needed to counter climate change, if the consequences are not to be too great. Carbon dioxide is one of the most important greenhouse gases and the forest is an important…

Subjects/Keywords: wood-based products; biogenic carbon; carbon content; climate change; forest industry; sawn timber; pulp and paper industry; bioenergy; träbaserade produkter; biogent kol; kolinnehåll; klimatförändringar; skogsindustri; sågade trävaror; massa- och pappersindustrin; bioenergi; Environmental Sciences; Miljövetenskap; Environmental Engineering; Naturresursteknik

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Rosendal, L. (2020). Biogent kol i träbaserade produkter från svensk skogsindustri och kolets inbindningstid : En analys av potentialen att öka inbindningstiden i det årliga tillskottet av produkter. (Thesis). Uppsala University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-415431

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Rosendal, Linnea. “Biogent kol i träbaserade produkter från svensk skogsindustri och kolets inbindningstid : En analys av potentialen att öka inbindningstiden i det årliga tillskottet av produkter.” 2020. Thesis, Uppsala University. Accessed January 15, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-415431.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Rosendal, Linnea. “Biogent kol i träbaserade produkter från svensk skogsindustri och kolets inbindningstid : En analys av potentialen att öka inbindningstiden i det årliga tillskottet av produkter.” 2020. Web. 15 Jan 2021.

Vancouver:

Rosendal L. Biogent kol i träbaserade produkter från svensk skogsindustri och kolets inbindningstid : En analys av potentialen att öka inbindningstiden i det årliga tillskottet av produkter. [Internet] [Thesis]. Uppsala University; 2020. [cited 2021 Jan 15]. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-415431.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Rosendal L. Biogent kol i träbaserade produkter från svensk skogsindustri och kolets inbindningstid : En analys av potentialen att öka inbindningstiden i det årliga tillskottet av produkter. [Thesis]. Uppsala University; 2020. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-415431

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Brno University of Technology

24. Tichák, Tomáš. Divadlo v Přerově: Theatre House in Přerov.

Degree: 2020, Brno University of Technology

URL: http://hdl.handle.net/11012/57517

► The main purpose of this work is a structural design of the building of theatre in Prerov city. The building has irregular shape. The structure… (more)

Subjects/Keywords: Divadlo; Rostlé dřevo; Lepené lamelové dřevo; Plnostěnný oblouk; Dřevěná konstrukce; Ocelová konstrukce; Vícepodlažní budova; Spřažená konstrukce; Příhradový vazník; Příhradové ztužidlo; Theatre; Timber structure; Steel structure; Glued laminated timber; Solid-sawn timber; Multi-storey building; Composite steel and concrete structure; Truss girder; Truss bracing

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Tichák, T. (2020). Divadlo v Přerově: Theatre House in Přerov. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/57517

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Tichák, Tomáš. “Divadlo v Přerově: Theatre House in Přerov.” 2020. Thesis, Brno University of Technology. Accessed January 15, 2021. http://hdl.handle.net/11012/57517.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Tichák, Tomáš. “Divadlo v Přerově: Theatre House in Přerov.” 2020. Web. 15 Jan 2021.

Vancouver:

Tichák T. Divadlo v Přerově: Theatre House in Přerov. [Internet] [Thesis]. Brno University of Technology; 2020. [cited 2021 Jan 15]. Available from: http://hdl.handle.net/11012/57517.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Tichák T. Divadlo v Přerově: Theatre House in Přerov. [Thesis]. Brno University of Technology; 2020. Available from: http://hdl.handle.net/11012/57517

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Brno University of Technology

25. Horka, Pavel. Víceúčelová sportovní hala: Multipurpose Sport Hall.

Degree: 2020, Brno University of Technology

URL: http://hdl.handle.net/11012/42295

► This thesis deals with the design of the construction of multi-funcion sports hall. Hall ground plandimensions are 50 x 60 m. Height of the hall… (more)

Subjects/Keywords: Víceúčelová sportovní hala; konstrukce; rostlé dřevo; lepené lamelové dřevo; plnostěnný oblouk; tříkloubový oblouk; vaznice; ztužidlo.; Multi-function sports hall; construction; solid timber; glued laminated timber; plane solid curve; triple joint arches; purlins; solid-sawn timber.

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Horka, P. (2020). Víceúčelová sportovní hala: Multipurpose Sport Hall. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/42295

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Horka, Pavel. “Víceúčelová sportovní hala: Multipurpose Sport Hall.” 2020. Thesis, Brno University of Technology. Accessed January 15, 2021. http://hdl.handle.net/11012/42295.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Horka, Pavel. “Víceúčelová sportovní hala: Multipurpose Sport Hall.” 2020. Web. 15 Jan 2021.

Vancouver:

Horka P. Víceúčelová sportovní hala: Multipurpose Sport Hall. [Internet] [Thesis]. Brno University of Technology; 2020. [cited 2021 Jan 15]. Available from: http://hdl.handle.net/11012/42295.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Horka P. Víceúčelová sportovní hala: Multipurpose Sport Hall. [Thesis]. Brno University of Technology; 2020. Available from: http://hdl.handle.net/11012/42295

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Brno University of Technology

26. Tichák, Tomáš. Zastřešení sportovního objektu: The Roofing of the Sport Hall.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/35270

► The main purpose of this work is a design of timber frame roofing structure for multi-purpose sports hall. The building has rectangular shape 50 meters… (more)

Subjects/Keywords: Víceúčelová sportovní hala; Rostlé dřevo; Lepené lamelové dřevo; Plnostěnný oblouk; Dřevěná konstrukce; Dvoukloubový oblouk; Vaznice; Ztužidlo; Multi-purpose sports hall; Timber structure; Glued laminated timber; Steel; Bracing; Two-hinged arch; Purlin; Solid-sawn timber

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Tichák, T. (2019). Zastřešení sportovního objektu: The Roofing of the Sport Hall. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/35270

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Tichák, Tomáš. “Zastřešení sportovního objektu: The Roofing of the Sport Hall.” 2019. Thesis, Brno University of Technology. Accessed January 15, 2021. http://hdl.handle.net/11012/35270.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Tichák, Tomáš. “Zastřešení sportovního objektu: The Roofing of the Sport Hall.” 2019. Web. 15 Jan 2021.

Vancouver:

Tichák T. Zastřešení sportovního objektu: The Roofing of the Sport Hall. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Jan 15]. Available from: http://hdl.handle.net/11012/35270.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Tichák T. Zastřešení sportovního objektu: The Roofing of the Sport Hall. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/35270

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

27. Βασιλείου, Βασιλείου. ΑΞΙΟΠΟΙΗΣΗ ΞΥΛΟΥ ΔΡΥΟΣ ΜΙΚΡΩΝ ΔΙΑΣΤΑΣΕΩΝ ΣΤΗΝ ΠΑΡΑΓΩΓΗ ΠΡΙΣΤΩΝ.

Degree: 1988, Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (ΑΠΘ); Aristotle University Of Thessaloniki (AUTH)

URL: http://hdl.handle.net/10442/hedi/0646

Subjects/Keywords: OAK-WOOD; PROPERTIES OF OAK LOGS; SAWING; SAWMILLS; SMALL DIMENSIONS; YIELD IN SAWN WOOD; Δρυς; Ξυλεία; Οξυά; ΤΕΧΝΟΛΟΓΙΑ ΔΑΣΙΚΩΝ ΠΡΟΙΟΝΤΩΝ

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APA (6^th Edition):

Βασιλείου, �. (1988). ΑΞΙΟΠΟΙΗΣΗ ΞΥΛΟΥ ΔΡΥΟΣ ΜΙΚΡΩΝ ΔΙΑΣΤΑΣΕΩΝ ΣΤΗΝ ΠΑΡΑΓΩΓΗ ΠΡΙΣΤΩΝ. (Thesis). Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (ΑΠΘ); Aristotle University Of Thessaloniki (AUTH). Retrieved from http://hdl.handle.net/10442/hedi/0646

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Βασιλείου, Βασιλείου. “ΑΞΙΟΠΟΙΗΣΗ ΞΥΛΟΥ ΔΡΥΟΣ ΜΙΚΡΩΝ ΔΙΑΣΤΑΣΕΩΝ ΣΤΗΝ ΠΑΡΑΓΩΓΗ ΠΡΙΣΤΩΝ.” 1988. Thesis, Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (ΑΠΘ); Aristotle University Of Thessaloniki (AUTH). Accessed January 15, 2021. http://hdl.handle.net/10442/hedi/0646.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Βασιλείου, Βασιλείου. “ΑΞΙΟΠΟΙΗΣΗ ΞΥΛΟΥ ΔΡΥΟΣ ΜΙΚΡΩΝ ΔΙΑΣΤΑΣΕΩΝ ΣΤΗΝ ΠΑΡΑΓΩΓΗ ΠΡΙΣΤΩΝ.” 1988. Web. 15 Jan 2021.

Vancouver:

Βασιλείου �. ΑΞΙΟΠΟΙΗΣΗ ΞΥΛΟΥ ΔΡΥΟΣ ΜΙΚΡΩΝ ΔΙΑΣΤΑΣΕΩΝ ΣΤΗΝ ΠΑΡΑΓΩΓΗ ΠΡΙΣΤΩΝ. [Internet] [Thesis]. Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (ΑΠΘ); Aristotle University Of Thessaloniki (AUTH); 1988. [cited 2021 Jan 15]. Available from: http://hdl.handle.net/10442/hedi/0646.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Βασιλείου �. ΑΞΙΟΠΟΙΗΣΗ ΞΥΛΟΥ ΔΡΥΟΣ ΜΙΚΡΩΝ ΔΙΑΣΤΑΣΕΩΝ ΣΤΗΝ ΠΑΡΑΓΩΓΗ ΠΡΙΣΤΩΝ. [Thesis]. Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (ΑΠΘ); Aristotle University Of Thessaloniki (AUTH); 1988. Available from: http://hdl.handle.net/10442/hedi/0646

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Helsinki

28. Pyörälä, Jiri. Eri-ikäiskasvatuksen vaikutus kuusen puuaineen laatuun: Wood quality of Norway Spruce in uneven-aged forests.

Degree: Department of Forest Sciences; Helsingfors universitet, Agrikultur- och forstvetenskapliga fakulteten, Institutionen för skogsvetenskaper, 2013, University of Helsinki

URL: http://hdl.handle.net/10138/40716

► This study is a part of the research project of uneven-aged forest stands ERIKA by Finnish Institute for Forest Research. The aim of this study… (more)

▼ This study is a part of the research project of uneven-aged forest stands ERIKA by Finnish Institute for Forest Research. The aim of this study was to identify the growth and quality of Norway spruce wood and sawn wood products from uneven-aged forest stands in South Finland. The properties ex-amined were fiber length, wood density, modulus of elasticity and visual grade according to Nordic standards of visual grading. 64 trees were measured for fiber length and sawn wood of 40 trees (355 pc.) was measured for density, modulus of elasticity and visual grading. The variation of fiber length was modeled in respect to distance from pith and ring width using a mixed model. The variation of density, modulus of elasticity and visual grade was analyzed in respect to the within-tree location with two-sided variance analysis. In respect to cambial age and ring width the properties were analyzed by means of regression modeling. According to the results fiber length, density and MOE did not differ significantly from those characteristic to spruce in even-aged stands: most variation was among-tree which gives a reason to think that the changes in within-tree growth rhythm do not affect these proper-ties within an individual tree. Visual grading for sawn wood gave that there was a good amount of class A (~ 20 %) but class C (> 33 %) was more common than class B (> 25 %): Timber was knotty especially near pith and loose knots were dense on lumber boards. Twisting was high near pith in timber boards but did not differ from the usual. There was remarkable amount of compression wood and decay in the material. The within-tree variation of visual grade was equal to the among-tree varia-tion. Due to the small sample size the results are not yet applicable to uneven-aged forests in general, but they give an impression that there might not be any major differences between the quality of even-aged and uneven-aged wood. First of all, the results give light to the characteristics of uneven-aged spruce wood properties that might be of interest for further research.

Subjects/Keywords: Picea abies (L.) Karst; uneven-aged forest management; Norway spruce; fiber length; wood density; modulus of elasticity; visual grading; branches; sawn wood distortion; compression wood; decay; eri-ikäiskasvatus; kuusi; kuidunpituus; kuiva-ilmakuivatiheys; kimmokerroin; sahatavaran laatulajittelu; oksaisuus; sahatavaran muodonmuutokset; lyly; laho; Skogsresursvetenskap och -teknologi (träteknologi); Forest Resource Science and Technology (Wood technology); Metsävaratiede ja -teknologia (puuteknologia)

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Pyörälä, J. (2013). Eri-ikäiskasvatuksen vaikutus kuusen puuaineen laatuun: Wood quality of Norway Spruce in uneven-aged forests. (Masters Thesis). University of Helsinki. Retrieved from http://hdl.handle.net/10138/40716

Chicago Manual of Style (16^th Edition):

Pyörälä, Jiri. “Eri-ikäiskasvatuksen vaikutus kuusen puuaineen laatuun: Wood quality of Norway Spruce in uneven-aged forests.” 2013. Masters Thesis, University of Helsinki. Accessed January 15, 2021. http://hdl.handle.net/10138/40716.

MLA Handbook (7^th Edition):

Pyörälä, Jiri. “Eri-ikäiskasvatuksen vaikutus kuusen puuaineen laatuun: Wood quality of Norway Spruce in uneven-aged forests.” 2013. Web. 15 Jan 2021.

Vancouver:

Pyörälä J. Eri-ikäiskasvatuksen vaikutus kuusen puuaineen laatuun: Wood quality of Norway Spruce in uneven-aged forests. [Internet] [Masters thesis]. University of Helsinki; 2013. [cited 2021 Jan 15]. Available from: http://hdl.handle.net/10138/40716.

Council of Science Editors:

Pyörälä J. Eri-ikäiskasvatuksen vaikutus kuusen puuaineen laatuun: Wood quality of Norway Spruce in uneven-aged forests. [Masters Thesis]. University of Helsinki; 2013. Available from: http://hdl.handle.net/10138/40716

Swedish University of Agricultural Sciences

29. Warensjö, Mats. Compression wood in Scots pine and Norway spruce.

Degree: 2003, Swedish University of Agricultural Sciences

URL: http://pub.epsilon.slu.se/415/

► This thesis gives a summary and discussion of results from five studies concerned with: the distribution of compression wood in relation to external stem and… (more)

▼ This thesis gives a summary and discussion of results from five studies concerned with: the distribution of compression wood in relation to external stem and log geometry and the impact of the compression wood distribution on deformations of sawn timber. Moreover the straightening process of trees is discussed. In order to study the distribution of compression wood in stems and logs, 63 trees of Norway spruce and Scots pine representing different age and curvature categories were sliced into 621 discs. In order to study the impact of compression wood on deformations of sawn timber, 146 logs of Scots pine and Norway spruce were processed into studs and battens. Before crosscutting, the external geometry of stems and logs were assessed. A 3D-logscanner was used for the assessment of logs. Deformations such as bow, spring and twist were measured on studs and battens at green condition, at 18% moisture content and at 12% moisture content. Compression wood content in thin cross sections of discs, studs and battens were analysed using transmitted light and image analysis. The analyses showed that a majority of all discs and cross sections contained compression wood. In all studies, the pith eccentricity was significantly correlated to the discs´ compression wood content. For the 6-year-old Scots pine trees, the compression wood content was significantly correlated to the size of basal sweep but not to out-of-roundness. For the 22-year-old Scots pine trees, the compression wood content was not correlated to either bow height or size of basal sweep. For the 60-year-old Norway spruce trees, the compression wood content was significantly correlated to compression wood content in log ends, pith eccentricity and bow height. For sawn timber, the compression wood content and its position was significantly correlated to bow and spring but not twist. Twist was significantly correlated to grain angle measured on tangential faces of studs and spiral grain angle measured under bark on the surface of logs. Results indicate that eccentric growth and compression wood formation play major roles in the development of stem straightness. Moreover, young trees with basal sweep will be straighter over time. Consequently, the straightness of a log is not a reliable measure of the compression wood content within the stem. By combining data describing external geometry with information regarding compression wood content and pith eccentricity obtained from log ends it is possible to detect logs that are prone to contain compression wood. The results also indicate that the distribution of compression wood in sawn timber influences the direction and size of bow and spring.

Subjects/Keywords: pinus sylvestris; picea abies; stems; reaction wood; sawnwood; wood production; wood defects; image analyasis; Pinus sylvestris L.; Picea abies (L.) Karst.; stem form; reaction wood; sawn wood; deformations; instability; basal sweep

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Warensjö, M. (2003). Compression wood in Scots pine and Norway spruce. (Doctoral Dissertation). Swedish University of Agricultural Sciences. Retrieved from http://pub.epsilon.slu.se/415/

Chicago Manual of Style (16^th Edition):

Warensjö, Mats. “Compression wood in Scots pine and Norway spruce.” 2003. Doctoral Dissertation, Swedish University of Agricultural Sciences. Accessed January 15, 2021. http://pub.epsilon.slu.se/415/.

MLA Handbook (7^th Edition):

Warensjö, Mats. “Compression wood in Scots pine and Norway spruce.” 2003. Web. 15 Jan 2021.

Vancouver:

Warensjö M. Compression wood in Scots pine and Norway spruce. [Internet] [Doctoral dissertation]. Swedish University of Agricultural Sciences; 2003. [cited 2021 Jan 15]. Available from: http://pub.epsilon.slu.se/415/.

Council of Science Editors:

Warensjö M. Compression wood in Scots pine and Norway spruce. [Doctoral Dissertation]. Swedish University of Agricultural Sciences; 2003. Available from: http://pub.epsilon.slu.se/415/

Technical University of Lisbon

30. Esteves, Luís Avelino Roque. Pedras naturais portuguesas: o futuro prepara-se hoje.

Degree: 2007, Technical University of Lisbon

URL: http://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/804

►

Mestrado em Gestão e Estratégia Industrial

O sector das pedras naturais tem longa tradição técnica e comercial no nosso País. Nas últimas dezenas de anos… (more)

▼

Mestrado em Gestão e Estratégia Industrial

O sector das pedras naturais tem longa tradição técnica e comercial no nosso País. Nas últimas dezenas de anos as empresas viveram um período de negócios florescente, com forte participação no mercado internacional, concorrendo com as potências do ramo, nomeadamente a Itália e a Espanha com base numa estratégia baseada em preços mais baixos para semelhante valor da pedra ou da obra acabada. Nos últimos anos, contudo, surgiu uma ameaça muito forte, consubstanciada na forte globalização do mercado e na entrada em cena do grupo BRIC. Numa primeira fase a sua capacidade tecnológica era limitada, mas de forma muito rápida adquiriram “know-how” e atingiram um nível de qualificação técnica que lhes permitiu tornarem-se numa ameaça muito séria. Sendo certo que a concorrência através da produção em massa e do baixo preço nos está definitivamente vedada, há que procurar uma via para saír do cerco que nos é feito pelos países de tecnologia mais evoluída e preço mais remunerador e pelos países da produção em massa. Parece, assim, ser imperioso definir uma estratégia que passe pela melhoria da nossa competitividade. Tentando dar um contributo válido para a resolução do problema e deixando de parte os aspectos ligados à estratégia, ao marketing e à comercialização, já estudados em outros trabalhos, resolvemos abordar o problema do incremento da nossa capacidade competitiva, com base no aumento da produtividade industrial, através da melhoria dos métodos de trabalho e de gestão da qualidade.

The Portuguese natural stones sector has a long technical and commercial tradition. During the last decades our companies faced a period of excellent turnovers, with a strong participation in the international market, competing with the most powerful countries in the sector, namely Italy and Spain. They have been using a strategy based on lower prices for the same level of offer either in terms of stone or final works. During 90’s a severe threat darkened our horizon and was intensified by the global market trends especially because the BRIC group came into it using very strong arguments. In the first stage its technical capacity was limited but in a short term they became a very serious threat after reaching a high level of qualification. The Portuguese companies are perfectly aware that they can’t go into the market using low prices and mass production anymore. A different approach must be found in order to overcome the sandwich they are being squeezed in between the most advanced countries and this last group. It seems the only possible option is to define a new strategy based on the use of the “best practices” to improve the quality and the value of their solutions. In order to give a valid input to solve this problem and trying to avoid aspects such as strategy, marketing and trading, dully analysed by some other authors, we decided to study the possibility of increasing our competitiveness. This increase must result from the productivity growth based on better working methods and quality…

Advisors/Committee Members: Soares, José Miguel Aragão Celestino.

Subjects/Keywords: mármore; calcário; bloco; chapa serrada ou polida; mão-de-obra; tecnologia; qualidade total; produtividade; competitividade; marble; limestone; blocks; polished and sawn slab; manpower; technology; total quality; productivity; competitiveness

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Esteves, L. A. R. (2007). Pedras naturais portuguesas: o futuro prepara-se hoje. (Thesis). Technical University of Lisbon. Retrieved from http://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/804

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Esteves, Luís Avelino Roque. “Pedras naturais portuguesas: o futuro prepara-se hoje.” 2007. Thesis, Technical University of Lisbon. Accessed January 15, 2021. http://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/804.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Esteves, Luís Avelino Roque. “Pedras naturais portuguesas: o futuro prepara-se hoje.” 2007. Web. 15 Jan 2021.

Vancouver:

Esteves LAR. Pedras naturais portuguesas: o futuro prepara-se hoje. [Internet] [Thesis]. Technical University of Lisbon; 2007. [cited 2021 Jan 15]. Available from: http://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/804.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Esteves LAR. Pedras naturais portuguesas: o futuro prepara-se hoje. [Thesis]. Technical University of Lisbon; 2007. Available from: http://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/804

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

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Open Access Theses and Dissertations