Academic literature on the topic 'Timber cupping'

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Journal articles on the topic "Timber cupping"

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Ebner, David Hans, Marius-Catalin Barbu, Vladimír Gryc, and Petr Čermák. "Surface charring of silver fir wood cladding using an enhanced traditional Japanese Yakisugi method." BioResources 17, no. 2 (2022): 2031–42. http://dx.doi.org/10.15376/biores.17.2.2031-2042.

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The aim of this work was to better understand the ignition method of timber charring in order to improve the industrial process. Three silver fir boards were tied together to make a triangular prism, which acted as a chimney. To start the charring process, the traditional Yakisugi method uses an ignitor paper ball. This ignitor paper ball was in this research replaced with a gas burner. The gas burner supplies the required energy in an even level and provides airflow in the upward direction. The surface temperature of the samples increased from 10 to 500 °C in approximately 40 to 80 s at all r
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Ebner, David Hans, Marius-Catalin Barbu, Josef Klaushofer, and Petr Čermák. "Surface Modification of Spruce and Fir Sawn-Timber by Charring in the Traditional Japanese Method—Yakisugi." Polymers 13, no. 10 (2021): 1662. http://dx.doi.org/10.3390/polym13101662.

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The traditional Japanese method of wood surface charring was studied. To perform the surface charring, three sawn Norway spruce and Silver fir wood boards of dimension 190 × 24 × 4000 mm3 were tied together to act as a chimney and charred in a short time (3–4 min) with open flame at a temperature above 500 °C. Temperature inside the chimney was recorded on the three different positions during the charring process. Surface temperature of spruce increased from 0 °C to 500 °C in approx. 120–300 s while fir increased in approx. 100–250 s. The thickness of the charred layer and the resulting cuppin
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Fortino, Stefania, Petr Hradil, Keijo Koski, et al. "Health Monitoring of Stress-Laminated Timber Bridges Assisted by a Hygro-Thermal Model for Wood Material." Applied Sciences 11, no. 1 (2020): 98. http://dx.doi.org/10.3390/app11010098.

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Timber bridges are economical, easy to construct, use renewable material and can have a long service life, especially in Nordic climates. Nevertheless, durability of timber bridges has been a concern of designers and structural engineers because most of their load-carrying members are exposed to the external climate. In combination with certain temperatures, the moisture content (MC) accumulated in wood for long periods may cause conditions suitable for timber biodegradation. In addition, moisture induced cracks and deformations are often found in timber decks. This study shows how the long te
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Cai, Chenyang, Antti Haapala, Mohammad Habibur Rahman, et al. "Effects of two-year weather exposure on thermally modified Picea abies, Pinus sylvestris, and Fraxinus excelsior wood." Canadian Journal of Forest Research 50, no. 11 (2020): 1160–71. http://dx.doi.org/10.1139/cjfr-2019-0446.

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The use of thermally modified timber (TMT) in outdoor applications is well established, but its performance against the stresses of outdoor conditions is not comprehensively understood. This study investigates the changes in density, surface chemical composition, color, equilibrium moisture content (EMC), checking, hardness, and cupping of thermally modified boards of Scots pine (Pinus sylvestris L.), Norway spruce (Picea abies (L.) H. Karst.), and European ash (Fraxinus excelsior L.) during a two-year weather exposure test in Eastern Finland. Unmodified pine, spruce, and ash and copper salt i
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Díez, M. R., J. I. Fernández-Golfín, and E. Hermoso. "Warp in structural timber. Causes and control." Forest Systems 10, no. 2 (2001): 245–52. http://dx.doi.org/10.5424/723.

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Over a sample of 948 boards with dried dimensions of 150 X 50 X 3,000 mm, coming from 22 trees felled in 4 different areas of the National Park of «Cazorla y Segura» (Jaen, Spain), was studied the influence of site, tree and position of boards within the tree on bow, spring, twist and cupping of timber, measured according to the methodology of the Spanish standard UNE 56.544. The relationship between the percentage of rejected timber and the average twist in every log along the stem was studied, analysing the influence of site, tree and log on such a relation. The influence of every factor is
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Suranto, Yustinus, and Mugiyana Mugiyana. "Pengaruh Metode Pengeringan dan Jenis Sortimen Kayu Suren terhadap Kecepatan dan Cacat Pengeringan." Jurnal Ilmu Kehutanan 3, no. 1 (2009): 57. http://dx.doi.org/10.22146/jik.929.

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Effect of Drying Method and Lumber Dimension on Drying Rate and Defects of Suren WoodEfforts to improve productivity of wood industry must be supported by increasing supply of wood as raw materials. The limited wood supply due to natural forest degradation can be increased by wood harvested from plantation forests, including wood of suren (Toona sureni Merr) as one species composing the forests. In timber processing wood drying is an important aspect determining product quality. This study aimed to identify the effect of drying method and sortimen dimension on drying character of suren wood.Tr
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Grabner, Michael, Sebastian Nemestothy, and Elisabeth Wächter. "Wooden Roofing: Split Shingles versus Sawn Boards." International Journal of Wood Culture, March 7, 2022, 1–19. http://dx.doi.org/10.1163/27723194-bja10002.

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Abstract Wooden shingles have been known in Europe and other regions worldwide for several thousands of years. They are usually split, and according to handicraft rules, as well as historical literature, a split surface has many advantages. It is more flexible, more elastic, stronger, and less exposed to cupping than a sawn surface because no fibers have been cut. It also follows wood rays; it is more durable than a sawn surface because cut fibers absorb more moisture, creating good conditions for fungal growth. However, because sawing is the main procedure for dividing logs into timber, sawn
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Dissertations / Theses on the topic "Timber cupping"

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

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<p>Hårdgörning av trä syftar till att göra materialet hårdare. Detta går att åstadkomma genom komprimering, det komprimerade materialet tenderar dock att återgå mot sin ursprungsform då materialet utsätts för fukt om ingen låsning sker. Låsningen kan ske mekaniskt i en treskiktskonstruktion som motverkar träets fuktrörelser. Dessa skivor har dock visat sig vara instabila och tidigare försök har uppvisat deformationer i form av kupning. Denna undersökning syftar till att utreda förutsättningarna för att använda komprimerad asp samt att ta fram underlag för framtagning av en kommersiell produkt.
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(11392619), David Buck. "“Hygromorphism: green carbon-negative energy for water-sensitive urban design”." Thesis, 2024. https://figshare.com/articles/thesis/_Hygromorphism_green_carbon-negative_energy_for_water-sensitive_urban_design_/27411339.

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<p>Water Sensitive Urban Design (WSUD) is a vital component in an anthropocentric view to managing an entire water cycle as close as practicable to the once natural flow conditions within and through an urban catchment. A review of WSUD literature with a focus upon innovative opportunities for the concept presented a niche for WSUD advancement with energy inputs. WSUD systems tend not to require energy inputs to drive them, yet if a carbon-neutral green energy source existed, then novel WSUD system enhancements would ensue. Exceeding goals of carbon-neutrality, hygromorphism is carbon-negative
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Books on the topic "Timber cupping"

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Yang, Jingduan, and Daniel A. Monti. Adjunctive Therapies. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780190210052.003.0017.

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Acupuncture is one of the major therapeutic modalities in the system of ancient Chinese medicine, and it must be used in the context of Chinese medicine as an effective and complete clinical discipline. The other modalities of ancient and modern times that are based on Chinese medical theories and practices are considered here as adjunctive therapies. They include Chinese herbal medicine, moxibustion, Tui Na, Gua Sha, cupping, auricular acupuncture, scalp acupuncture, and neuro-emotional techniques. They are used in conjunction with body acupuncture and as an alternative when acupuncture is no
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Book chapters on the topic "Timber cupping"

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Mandl, Sylvia, and Martin Unger. "Students with Delayed Transition to Higher Education: An Often Overlooked Group." In European Higher Education Area 2030: Bridging Realities for Tomorrow’s Higher Education. Springer Nature Switzerland, 2024. https://doi.org/10.1007/978-3-031-75140-0_19.

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Abstract For the higher education system to be socially equitable, it is commonly agreed upon by European higher education policymakers that the student body should mirror the social structure of the population (EHEA, 2020). Many countries have created alternative routes to higher education, allowing students to enrol alternative credentials to complete traditional upper secondary education or to complete secondary education and start higher education later in life. Such measures have also improved the social mix of the student population. This paper takes a closer look at the background of st
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Wallace, Daniel J., and Janice Brock Wallace. "Behind the Hype: Unproven, Experimental, Herbal, and Innovative Remedies." In All About Fibromyalgia. Oxford University Press, 2002. http://dx.doi.org/10.1093/oso/9780195147537.003.0034.

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Advocates of practical though controversial lifestyle approaches have always found a sympathetic ear in the United States since the time folk practitioner Sylvester Graham’s principles of health, nutrition, and fitness (in addition to inventing the Graham cracker) achieved cult status in the 1840s. Heroic, misguided therapies were administered by allopathic (mainstream) physicians throughout the nineteenth century. This created fertile ground for promoters of patent medicines and nostrums to those escaping organized medicine’s use of leeches, cupping, phlebotomy (blood drawing) knives, and bru
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Conference papers on the topic "Timber cupping"

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Bae, Han Jin, Jae Jin Baek, Ki Hong Kim, and Kwang Ki Baek. "Quality Evaluation of Coated Film Quick Dried by Far-Infrared Radiation." In CORROSION 2004. NACE International, 2004. https://doi.org/10.5006/c2004-04015.

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Abstract Reduction of the drying time for sprayed coatings is one of the critical issues in shipbuilding and offshore industry to increase their productivity. So, accelerated drying of the sprayed coatings has been widely used and new techniques to speed up the drying stage of the sprayed coatings have received considerable attention in the related industry. Infrared drying method has significant advantages over conventional one, because the thermal radiation emitted from infrared source is more readily absorbed into the bulk of the coating, with less temperature gradient in the coated film. T
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Barreiros, Ricardo Marques, Walter de Souza Júnior, and Kelly Bossardi Dias. "Quality of guanandi wood (Calophyllum brasiliense Camb.) after heat treatment." In VI Seven International Multidisciplinary Congress. Seven Congress, 2024. http://dx.doi.org/10.56238/sevenvimulti2024-044.

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The scarcity of native forests and the national code that protects them have made it difficult to obtain timber considered as a good quality, thus making it necessary to discover new species or practices that make reforestation timber an alternative to reduce pressure on native forests. The objective of this study was to analyze the behavior of Guanandi wood ( Calophyllum brasiliense Camb.) regarding its physical properties when subjected to heat treatment and compare it to natural wood. In this work, boards were obtained from the basal logs of five 13-year-old trees, which were subjected to h
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LV, WEN-TAO, CHENG-HUI ZHU, XIANG-WEN MENG, and HUI ZHI. "THE EXPERIMENTAL STUDY OF CUPPING THERAPY INTERVENING THE RABBIT MODEL OF COLD STAGNATION LEADING TO BLOOD STASIS SYNDROME BASED ON THE BIOCHEMICAL CRITERION." In 2021 International Conference on Education, Humanity and Language, Art. Destech Publications, Inc., 2021. http://dx.doi.org/10.12783/dtssehs/ehla2021/35719.

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Objective: Explore the partial mechanisms of cupping therapy by means of the cellular factors in the peripheral blood cells; methods: Replicate the rabbit model of cold stagnation leading to blood stasis by adopting the cold stimulation and randomly dividing 12 rabbits to three groups based on the weight. Observe the sign of the rabbits before and after cupping test, the content of the vascular endothelial growth factor (VEGF), epidermal growth factor (EGF)in the peripheral blood; Results: After replicated the model, the model group and the treatment group gradually appeared the sign of cold s
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Peli, Eli, Reed Augliere, and George Timberlake. "Fast Registration of Digital Retinal Images." In Noninvasive Assessment of the Visual System. Optica Publishing Group, 1987. http://dx.doi.org/10.1364/navs.1987.md3.

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Registration, or alignment, of retinal images taken at different times is frequently required in image-processing applications. Images that need to be registered may be separated by a few years and may show slow changes in the retina. Such changes include drusen, nerve fiber layer damage, and changes in optic disc cupping and pallor. Registration may also be required for pictures taken only a fraction of a second apart, as in measurement of dilution curves in fluorescein angiography or at video rates required in fundus perimetry using the scanning laser ophthalmoscope (SLO).
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Hetz, P. "Contact pressure-dependent friction compensation in upsetting tests with miniaturized specimens." In Sheet Metal 2023. Materials Research Forum LLC, 2023. http://dx.doi.org/10.21741/9781644902417-26.

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Abstract. Components produced by sheet metal forming can so far only be characterized locally to a limited extent using conventional tests, such as the tensile test or the hydraulic cupping test, due to the size of the specimen. A new approach based on miniaturized upsetting specimens taken from the sheet plane allows to determine the material properties of semi-finished products locally, for example in radii. However, in addition to this specific advantage, challenges such as friction between the specimen and the tool also appear with this testing method. For an accurate determination of the
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