Thematische Bibliographien / Timber degradation

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Auswahl der wissenschaftlichen Literatur zum Thema „Timber degradation“

Autor: Grafiati

Veröffentlicht am 4. Juni 2021

Zuletzt aktualisiert am 20. Februar 2023

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Zeitschriftenartikel zum Thema "Timber degradation"

Yang, Deshan, Ming Xu, and Zhongfan Chen. "Experimental study on the reinforcement methods and lateral resistance of mortise-tenon jointed traditional timber frames." BioResources 16, no. 2 (April 20, 2021): 4039–51. http://dx.doi.org/10.15376/biores.16.2.4039-4051.

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In order to study the lateral resistance of reinforced traditional Chinese timber frames with mortise-tenon connections, three cyclic tests were conducted on one-bay mortise-tenon jointed traditional timber frames. Three reinforcement methods, i.e., steel angle strengthening, wood brace, and Timu, were studied. Seismic performances were evaluated according to the experimental phenomena and the test results. The failure mode, hysteresis curves, skeleton curves, curves of stiffness degradation, and energy dissipation capacity of the three specimens were analyzed based on the tests. The test resu

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Kuklík, Petr, Lukáš Velebil, Anna Gregorová, and Petr Svora. "MONITORING AND PROTECTION OF TIMBER-CONCRETE BRIDGES." Acta Polytechnica CTU Proceedings 22 (July 25, 2019): 57–61. http://dx.doi.org/10.14311/app.2019.22.0057.

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The majority of timber bridges for ordinary road traffic are often made as timber-concrete composite structures. Concrete slab is something like as umbrella for timber. The reason for problems in timber-concrete bridges is nearly always poor detailing for durability and neglected maintenance. Mainly all aspects of timber protection and maintenance should therefore be considered even during the planning phase of bridge. Paper deals with evaluation of timber properties, system of opto-fiber sensors for monitoring and diagnostics of mechanical stress of timber-concrete bridges, and degradation of

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Majak, W. "Further enhancement of 3-nitropropanol detoxification by ruminal bacteria in cattle." Canadian Journal of Animal Science 72, no. 4 (December 1, 1992): 863–70. http://dx.doi.org/10.4141/cjas92-098.

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Ruminal fluid obtained from cattle was used to determine the effects of different diets and supplements on the in vitro degradation of 3-nitropropanol, the miserotoxin aglycone of certain Astragalus species such as timber milkvetch (Leguminosae). Nitroethane, an analog of the aglycone that is much less toxic to mammals, was effective as a supplement when given on alternate days. It enhanced the in vitro rates of nitropropanol degradation in all experiments, by 70–170%. In agreement, daily doses of timber milkvetch at a level equivalent to 3 mg nitropropanol kg−1 body weight also enhanced nitro

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Banjade, Mani R. "Discourse and Discursive Practices Over Timber in Nepal." Journal of Forest and Livelihood 10, no. 1 (September 13, 2013): 58–73. http://dx.doi.org/10.3126/jfl.v10i1.8601.

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Forest sector of Nepal is far from harnessing its economic potential, but witnesses a continuation of deforestation and forest degradation. This is largely because of the limited policy focus on the management of the most important forest product – the timber. Taking timber at the central stage in the debate on forest management, this paper examines the existing stakeholder relations, policy deliberations, programs and everyday practices in Nepal. This paper draws on the country’s policy, legal and regulatory documents, policy deliberations on forest governance, media analysis and everyday pra

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Entry, James A., Nellie M. Stark, and Howard Loewenstein. "Timber harvesting: Effects on degradation of cellulose and lignin." Forest Ecology and Management 22, no. 1-2 (December 1987): 79–88. http://dx.doi.org/10.1016/0378-1127(87)90097-1.

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Anshari, G. Z., M. Afifudin, M. Nuriman, E. Gusmayanti, L. Arianie, R. Susana, R. W. Nusantara, J. Sugardjito, and A. Rafiastanto. "Drainage and land use impacts on changes in selected peat properties and peat degradation in West Kalimantan Province, Indonesia." Biogeosciences 7, no. 11 (November 4, 2010): 3403–19. http://dx.doi.org/10.5194/bg-7-3403-2010.

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Abstract. Degradation of tropical peats is a global concern due to large Carbon emission and loss of biodiversity. The degradation of tropical peats usually starts when the government drains and clears peat forests into open peats used for food crops, oil palm and industrial timber plantations. Major properties of tropical peat forests are high in Water Contents (WC), Loss on Ignition (LOI) and Total Organic Carbon (TOC), and low in peat pH, Dry Bulk Density (DBD), and Total Nitrogen (TN). In this study, we investigated impacts of drainage and land use change on these properties. We collected

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Daňková, Jana, Tereza Majstríková, and Pavel Mec. "Bonded Joints in Water-Repellent Timber Structures." Key Engineering Materials 714 (September 2016): 3–9. http://dx.doi.org/10.4028/www.scientific.net/kem.714.3.

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Water in liquid and gaseous form is the main factor which significantly affects degradation processes in the wood. The mechanism and rate of wooden degradation processes can be effectively influenced by appropriate methods and technologies for its protection. However new knowledge, based on the possibilities of application of modern physical and chemical analytical methods, confirms that most well-known and previously commonly used protective equipment damages wooden structure. Many chemical substances, which are included in preservatives such as organic and inorganic biocides, or also flame r

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Soe, Khaing Thandar, and Youn Yeo-Chang. "Livelihood Dependency on Non-Timber Forest Products: Implications for REDD+." Forests 10, no. 5 (May 16, 2019): 427. http://dx.doi.org/10.3390/f10050427.

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Deforestation and forest degradation are occurring continuously and posing serious threats to forests and people worldwide. In Myanmar, poor regulation and unsustainable extraction of non-timber forest products (NTFPs) is affecting millions of hectares of natural forests; overexploitation of forest resources is one of the main drivers of forest degradation. Although evidence shows that the extraction of NTFPs results in forest degradation, there have been few studies on what drives rural people to depend on NTFPs and how to address these drivers in terms of policies and measures. Policies and

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Parracha, João, Manuel Pereira, António Maurício, Paulina Faria, Daniel F. Lima, Marina Tenório, and Lina Nunes. "Assessment of the Density Loss in Anobiid Infested Pine Using X-ray Micro-Computed Tomography." Buildings 11, no. 4 (April 17, 2021): 173. http://dx.doi.org/10.3390/buildings11040173.

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The present study aims at evaluating the impact of anobiid damage on pine timber elements. Anobiid attack produces a diffuse damage of the elements with a set of tunnels in random directions and sizes, thus confusing quantification. Therefore, a method was developed based on X-ray micro-computed tomography (μ-XCT) to obtain, for naturally infested timber samples, an empirical correlation between lost material percentage (consumed by beetles) and timber apparent density (original, before degradation—OTD and residual, after degradation—RTD). The quantified density loss can then be used in furthe

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Akapame, Clement Kojo. "The chase for legal timber: Developments in the commercial trade of timber in Ghana." Environmental Law Review 22, no. 3 (September 2020): 198–214. http://dx.doi.org/10.1177/1461452920934704.

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The quest for timber and timber resources and its corollary effects on forest degradation has in the last decade contributed to a series of concerted local and international interventions aimed at addressing the situation. These interventions have taken the character of domestic policies, international agreements and pacts and to some extent, domestic legislative reforms. The plethora of interventions have created a horde of laws and agreements with varying scopes and applications, multiple institutions with interlocked and overlapping responsibilities and uncoordinated and often undocumented

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Dissertationen zum Thema "Timber degradation"

Martin, W. "Recovery of impregnated gold from waste mine timber through biological degradation." Thesis, Cape Technikon, 2000. http://hdl.handle.net/20.500.11838/2156.

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Thesis (MTech (Chemical Engineering))--Cape Technikon, 2000.<br>The large quantities of wood chips produced at mines from damaged underground timber contain gold that cannot be completely recovered by cyanidation. A fungus that can degrade a portion of the wood matrix will allow the gold that was previously locked up, to come into contact with the cyanide solution during beneficiation, thereby improving recoveries. The fungus Phanerochaete chrysosporium produces enzymes that use the organic compounds found in lignin as substrate. Consequently, the fungus is able to selectively break down

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McGeachie, M. T., University of Western Sydney, College of Law and Business, and of Construction Property and Planning School. "Characterisation of the Sydney region in relation to corrosion, timber decay risk factors and the corrosion of nails in timber in covered conditions." THESIS_CLAB_CPP_McGeachie_M.xml, 2001. http://handle.uws.edu.au:8081/1959.7/491.

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The aim of the study was to characterise the environment in the Sydney region in respect of atmospheric corrosivity, timber decay risk factors and the corrosion of nails in timber in covered conditions. The study reviewed contemporary research in this field, particularly in Australia, developing an understanding of the durability failure mechanisms for timber and nails in timber. The study looked at the effects of climatic aspects, pollutants, corrosion on timber decay risk factors. The study found that the levels of risk in terms of timber degradation, corrosion and nail corrosion were greate

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Jantan, Mohd Dahlan. "Chemical preservation of some refractory timber species of Malaysia." Thesis, University of Portsmouth, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.310381.

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The treatability of six Malaysian timbers namely Red Balau (Shorea guiso), Kapur (Dryobafanops aromatica), Kasai (Pometia pinnata), Kulim (Scorodocarpus borneensis), Kempas (Koompassia malaccensis) and Keruing (Dipterocarpus grandiflorus) using the applied pressure processes (oscillating pressure, conventional Bethell and a modified Bethell process) was investigated. Treatments were carried out with a commercial water-borne copper-chromearsenic (CCA) preservative, known as Celcure-AP. The conventional Bethell process was the most effective method of wood treatment followed by the modified Beth

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Christin, Jérôme. "Système de fondation sur pieux bois : une technique millénaire pour demain." Thesis, Paris Est, 2013. http://www.theses.fr/2013PEST1105/document.

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La France possède un patrimoine très riche d'ouvrages d'art et de bâtiments fondés sur des pieux en bois. Les ponts construits sur la Loire, sur la Seine, le château de Chambord ou encore le Grand Palais à Paris en sont quelques exemples. Cependant, malgré un parc français important d'ouvrages bâtis sur des pieux en bois, le retour d'expérience sur la portance résiduelle et l'état de dégradation de leurs fondations est faible et non capitalisé. Les principaux objectifs de ce travail, qui s'intègre dans le projet Pieux Bois, sont d'une part, de définir une méthodologie d'analyse des fondations

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Simson, Scott Andrew. "Development of a model for railway track maintenance planning." Thesis, Queensland University of Technology, 1999. https://eprints.qut.edu.au/36116/1/36116_Simson_1999.pdf.

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Track maintenance represents over 20 percent of Australian railway operating costs. Thus there is considerable incentive for rail corporations to reduce their maintenance costs. There is considerable research directed at improving track structures and maintenance techniques to reduce the track maintenance expenditure. However, there is little work on the planning of track maintenance that can be applied to Australian railway operations. This research reviews maintenance planning and finds that models currently available are empirical models reliant mainly on historical track condition data fr

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Lu, Jin 1959. "Degradation processes and related reliability models." Thesis, McGill University, 1995. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=39952.

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Reliability characteristics of new devices are usually demonstrated by life testing. When lifetime data are sparse, as is often the case with highly reliable devices, expensive devices, and devices for which accelerated life testing is not feasible, reliability models that are based on a combination of degradation and lifetime data represent an important practical approach. This thesis presents reliability models based on the combination of degradation and lifetime data or degradation data alone, with and without the presence of covariates. Statistical inference methods associated with the mod

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Addai, Obeng A. "Regulated Feedback Networks with Degradation." Youngstown State University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1444046732.

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Daheur, Jawad. "Le Parc à bois de l'Allemagne : course aux ressources et hégémonie commerciale dans les bassins de la Vistule et de la Warta (1840-1914)." Thesis, Strasbourg, 2016. http://www.theses.fr/2016STRAG041.

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Cette étude traite des stratégies allemandes pour prendre le contrôle des ressources en bois d’oeuvre dans l’espace baltique entre 1840 et 1914. Centré sur le commerce dans les bassins de la Vistule et de la Warta, elle montre comment la puissance allemande montante y est parvenue à sécuriser un accès bon marché et stable aux ressources ligneuses. Les firmes établirent leur domination commerciale en développant des technologies de transport et en renforçant leurs capacités financières et organisationnelles, tout cela en tirant profit des faiblesses économiques et politiques locales. En analysa

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Watson, William H. "DNA Degradation as an Indicator of Post-Mortem Interval." Thesis, University of North Texas, 2010. https://digital.library.unt.edu/ark:/67531/metadc30523/.

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The question of post-mortem interval (PMI) or time since death is often the most sought after piece of information associated with a medical death investigation. Based on the observation that DNA degradation disproportionately affects the analysis of larger genetic loci, it was proposed that DNA degradation, as a result of autolysis or putrefaction, could prove suitable as a potential rate-of-change indicator of PMI. Nine randomly amplified polymorphic DNA (RAPD) analysis primers and three sets of directed amplification primers were evaluated to determine their suitability for use in assessi

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Olsen, Peter A. "Shear Modulus Degradation of Liquefying Sand: Quantification and Modeling." BYU ScholarsArchive, 2007. https://scholarsarchive.byu.edu/etd/1214.

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A major concern for geotechnical engineers is the ability to predict how a soil will react to large ground motions produced by earthquakes. Of all the different types of soil, liquefiable soils present some of the greatest challenges. The ability to quantify the degradation of a soil's shear modulus as it undergoes liquefaction would help engineers design more reliably and economically. This thesis uses ground motions recorded by an array of downhole accelerometers on Port Island, Japan, during the 1995 Kobe Earthquake, to quantify the shear modulus of sand as it liquefies. It has been shown t

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Bücher zum Thema "Timber degradation"

Barbier, Edward B. Timber trade, trade policies and environmental degradation. London: IIED/UCL London Environmental Economics Centre, 1992.

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Lewis, Terence. Developing timber harvesting prescriptions to minimize site degradation. Victoria, B.C: BC Ministry of Forests, 1991.

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Paul, Jeanrenaud Jean, and Sullivan Francis, eds. Bad harvest?: The timber trade and the degradation of the world's forests. London: Earthscan, 1995.

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Reeves, Derrick. Detrimental soil disturbance associated with timber harvest systems on national forests in the Northern Region. Fort Collins, CO: U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Research Station, 2011.

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Borgå, Peter. Chemical and microbial interactions in environmental degradation processes: Implications on water storage of timber and decomposition of peat. Uppsala: Swedish University of Agricultural Sciences, Dept. of Chemistry, 1994.

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Kartodihardjo, Hariadi. The impact of sectoral development on natural forest conversion and degradation: The case of timber and tree crop plantations in Indonesia. Bogor, Indonesia: Center for International Forestry Research, 2000.

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Mouriki, Aliki. Flexible working: Towards further degradation of work, or escaping from stereotypes? Coventry: Industrial Relations Research Unit, University of Warwick, 1994.

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Mouriki, Aliki. Flexible working: Towards further degradation of work, or escaping from stereotypes? Coventry: Industrial Relations Research Unit, School of Industrial and Business Studies, University of Warwick, 1994.

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Voake, Steve. The dreamwalker's child. New York: Bloomsbury Children's Books, 2006.

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Voake, Steve. The dreamwalker's child. New York: Bloomsbury, 2007.

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Buchteile zum Thema "Timber degradation"

Desch, H. E., and J. M. Dinwoodie. "Degradation of Timber in Service." In Timber Structure, Properties, Conversion and Use, 233–37. London: Macmillan Education UK, 1996. http://dx.doi.org/10.1007/978-1-349-13427-4_18.

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Gale, Fred P. "Tropical Deforestation and Rainforest Degradation." In The Tropical Timber Trade Regime, 42–60. London: Palgrave Macmillan UK, 1998. http://dx.doi.org/10.1057/9780230371521_4.

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Gale, Fred P. "Explaining Tropical Deforestation and Rainforest Degradation." In The Tropical Timber Trade Regime, 204–26. London: Palgrave Macmillan UK, 1998. http://dx.doi.org/10.1057/9780230371521_12.

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Shanbhag, Rashmi Ramesh, R. Sundararaj, and M. V. Rao. "Natural Durability of Timber in Terrestrial and Marine Realms of India: A Contrasting Feature." In Science of Wood Degradation and its Protection, 439–78. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-8797-6_13.

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Narasimhamurthy. "Preservation of Engineered Wood Composites (Solid Wood Plywood, Blockboards/Flush Doors) Made from Plantation Timbers." In Science of Wood Degradation and its Protection, 625–46. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-8797-6_18.

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Yanda, Pius Z., Edmund B. Mabhuye, Anselm R. Mwajombe, and Namkunda Johnson. "Community livelihoods and ecosystem integrity in makere forest reserve, western Tanzania." In Climate change impacts and sustainability: ecosystems of Tanzania, 194–213. Wallingford: CABI, 2020. http://dx.doi.org/10.1079/9781789242966.0194.

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Abstract Wealth creation and poverty alleviation processes in the forest-bounded areas entail the use of such forests to a greater extent. Studies elsewhere show that there is often a tendency to use such forests until they are depleted before technology comes in to improve livelihoods. In this chapter, we examine community livelihoods in relation to ecosystem integrity for communities surrounding the Makere Forest Reserve, particularly socio-economic characteristics of communities, their links to forest utilization and implications for ecosystem integrity. We used mixed methods to collect data: (i) a household questionnaire; (ii) focus group discussions; (iii) key informant interviews; and (iv) a literature review, backed up with satellite imagery. Quantitative and qualitative data collected were subjected to statistical and non-statistical tests, respectively, with the use of Statistical Package for Social Sciences (SPSS) computer software for quantitative data analysis. Livelihood activities in the area include shifting cultivation, livestock keeping, firewood fetching, charcoal making, harvesting timber and illegal logging. The motive for such forest exploitation is both for meeting household needs as well as for wealth accumulation. Forest users take part in such activities regardless of the distance they have to travel from their villages to come to the forest areas. We found education is an integral part of wealth status, but had nothing to do in terms of improving livelihood activities for ecosystem integrity. The absence of livelihood diversification of farm-related activities penetrates into weak forest governance strategies resulting in proliferation of deforestation and forest degradation. To maintain forest integrity, integrated approaches in forest management and alternative livelihood activities are needed such as beekeeping, fishing and modernized livestock keeping. These activities have the potential to increase household food and income and alleviate poverty levels without compromising ecosystem integrity.

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Werner, Brian T., Bonnie R. Antoun, and George B. Sartor. "Thermal Degradation of Extension Springs." In Challenges in Mechanics of Time Dependent Materials, Volume 2, 1–9. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-22443-5_1.

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Niklaus, Markus, Christina Eisfelder, Ursula Gessner, and Stefan Dech. "Land Degradation in South Africa – A Degradation Index Derived from 10 Years of Net Primary Production Data." In Remote Sensing Time Series, 247–67. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-15967-6_12.

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Barnat, Jiří, Ivana Černá, and Jana Tůmová. "Timed Automata Approach to Verification of Systems with Degradation." In Mathematical and Engineering Methods in Computer Science, 84–93. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-25929-6_8.

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Couallier, Vincent. "A Competing Risks Model for Degradation and Traumatic Failure Times." In Statistical Models and Methods for Biomedical and Technical Systems, 83–93. Boston, MA: Birkhäuser Boston, 2008. http://dx.doi.org/10.1007/978-0-8176-4619-6_7.

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Konferenzberichte zum Thema "Timber degradation"

Hueto Escobar, Alicia, Fernando Vegas, Camilla Mileto, and María Lidón de Miguel. "State of conservation of half-timbered walls in Burgos (Spain): Quantitative analysis of material and structural degradation." In HERITAGE2022 International Conference on Vernacular Heritage: Culture, People and Sustainability. Valencia: Universitat Politècnica de València, 2022. http://dx.doi.org/10.4995/heritage2022.2022.15051.

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The systematic data collection and quantitative analysis of 225 half-timbered walls found in the province of Burgos made it possible to reach conclusions on the frequency and scope of 27 phenomena of material degradation and 11 types of structural lesions. Almost the entirety of the sample analysed presents some degree of material degradation, mostly slight atmospheric lesions such as surface atmospheric erosion and chromatic alteration and dehydration of the timber. A greater vulnerability to structural lesions, particularly structural deformation, has been observed in this type of wall. The

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Nunes, Lina, João L. Parracha, Paulina Faria, Pedro Palma, António Maurício, and Manuel F. C. Pereira. "Towards an assessment tool of anobiid damage of pine timber structures." In IABSE Symposium, Guimarães 2019: Towards a Resilient Built Environment Risk and Asset Management. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2019. http://dx.doi.org/10.2749/guimaraes.2019.1734.

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<p>The safety assessment of old timber structures is an important issue, due to the long-term behaviour of wood and the structural complexity found in some older constructions. If the structure is degraded due to the action of wood-boring insects, the complexity of the analysis increases. The objective of this work was to evaluate the impact of anobiid beetles’ attack on old timber structures. One major difficulty concerns the assessment of the effective strength of timber cross sections with anobiid damage. This happens because beetles’ attack produces a diffuse damage, with a set of tu

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Gao, Yin, and Mike McHenry. "Simulation of the Thermal Effects on Engineered Polymer Composite Ties." In 2019 Joint Rail Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/jrc2019-1299.

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Engineered polymer composite (EPC) ties offer a potential alternative to solid sawn timber ties. These materials are especially attractive for use in regions where wood is susceptible to degradation by moisture and decay organisms. However, recent research at the Transportation Technology Center’s (TTC) Facility for Accelerated Service Testing (FAST) in Pueblo, CO, found that track supported by EPC ties experienced more gage widening variation due to temperature changes than track supported by wood ties. Specifically, the track gage was about 0.2-in. wider in the afternoon than that in the mor

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Fedorova, Natalya, and D. Arilov. "COMPARATIVE ANALYSIS OF VEGETATION CHANGES OF RANGELANDS IN ANTHROPOGENIC LOAD FOR EXAMPLE TSELINNY REGION'S NAYNTAKHINSKOE RURAL MUNICIPALITY OF KALMYKIA." In Land Degradation and Desertification: Problems of Sustainable Land Management and Adaptation. LLC MAKS Press, 2020. http://dx.doi.org/10.29003/m1683.978-5-317-06490-7/91-95.

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In article the comparative analysis of geobotanical surveys for 1987 and the years 2012-2019 on-site rangeland Tselinny region's Nayntakhinskoe SMO Republic of Kalmykia. It was found that over a 32-year period of time in all 8 key areas there were changes in the direction of deterioration in the following indicators: stages of pasture digression, phytomass, change of dominant species, projective cover of plant communities, indicating the deterioration and irrational use of pastures at the present time.

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Botros, K. K., C. Hartloper, H. Golshan, and D. Rogers. "Assessment of Recoverable vs Unrecoverable Degradations of Gas Turbines Employed in Five Natural Gas Compressor Stations." In ASME Turbo Expo 2015: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/gt2015-42078.

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Gas Turbines (GT), like other prime movers, experience wear and tear over time, resulting in decreases in available power and efficiency. Further decreases in power and efficiency can result from erosion and fouling caused by the airborne impurities the engine breathes in. To counteract these decreases in power and efficiency, it is standard procedure to ‘wash’ the engine from time to time. In compressor stations on gas transmission systems, engine washes are performed off-line and are scheduled in such intervals to optimize the maintenance procedure. This optimization requires accurate predic

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Vieira, A. C., J. C. Vieira, R. M. Guedes, A. T. Marques, Alberto D’Amore, Domenico Acierno, and Luigi Grassia. "DEGRADATION CHARACTERIZATION OF ALIPHATIC POLYESTERS—IN VITRO STUDY." In IV INTERNATIONAL CONFERENCE TIMES OF POLYMERS (TOP) AND COMPOSITES. AIP, 2008. http://dx.doi.org/10.1063/1.2989044.

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Shinkarenko, Stanislav, Viktoria Doroshenko, and Asel Berdengalieva. "STEPPE FIRE DYNAMICS IN THE SOUTH-EAST OF THE EUROPEAN PART OF RUSSIA." In Land Degradation and Desertification: Problems of Sustainable Land Management and Adaptation. LLC MAKS Press, 2020. http://dx.doi.org/10.29003/m1685.978-5-317-06490-7/100-103.

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The paper presents the results of geoinformation mapping of burned areas in zonal landscapes of the Astrakhan, Volgograd regions and the Republic of Kalmykia for 1998-2019. In total, over the studied period, more than 6 million hectares were covered by fire, more than 15 thousand fires were identified. The total burnt area, excluding recurrence, is more than 15 million hectares. Some areas have burned out up to 11-14 times in 20 years.

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Mashtykov, Kirill, and Elvira Dedova. "GEOECOLOGICAL ASSESSMENT OF PASTURE PHYTOCENOSES IN THE DESERT ZONE OF THE REPUBLIC OF KALMYKIA." In Land Degradation and Desertification: Problems of Sustainable Land Management and Adaptation. LLC MAKS Press, 2020. http://dx.doi.org/10.29003/m1676.978-5-317-06490-7/62-65.

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Based on long-term monitoring, the geoecological assessment of pasture phytocenoses in the desert zone of the Republic of Kalmykia under the influence of anthropogenic and climatic factors is given. It is established that excessive pasture load leads to degradation processes of vegetation and soil cover: a wide spread of explerents ( Eragrostis minor, Amaranthus albus ), depletion of the floral composition by 2 times, a decrease in productivity and feed value of pastures, an increase in the area of flown Sands.

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Matichenkov, V. "REDUCTION OF GREENHOUSE GASES EMISSION UNDER SILICON FERTILIZER APPLICATION." In Land Degradation and Desertification: Problems of Sustainable Land Management and Adaptation. LLC MAKS Press, 2020. http://dx.doi.org/10.29003/m1701.978-5-317-06490-7/165-169.

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The application of Si fertilizer is example of “green” low emission technology. The using of biochemical active forms of Si allow to reduce the greenhouse gases emission from cultivated soils, increase the carbon content in soil matrix, increase cultivated plants resistance to abiotic stresses and increase the quality and quantity of crop. Our investigations have sowed the presence of monosilicic acid in soil provide the reduction of N2O emission in 1.6-2 times because the denitrification process in such soil are complete with final formation of N2. The application of Si fertilizer increased t

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Ilinskaya, Izida, Olga Bezuglova, and Yuriy Litvinov. "ASSESSMENT OF THE ARIDIZATION OF THE SOUTH-EAST TERRITORY ROSTOV REGION IN DYNAMICS." In Land Degradation and Desertification: Problems of Sustainable Land Management and Adaptation. LLC MAKS Press, 2020. http://dx.doi.org/10.29003/m1698.978-5-317-06490-7/152-155.

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Based on the analysis of a long series of observations of meteorological parameters, a comparative assessment of the indicators of aridity in the South-East of the Rostov region in terms of time has been carried out. A general tendency for the increase in the degree of climate aridization was established.

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Berichte der Organisationen zum Thema "Timber degradation"

Nobre, Carlos, Julia Arieira, and Nathália Nascimento. Amazonian Forest: The Products of Agroecological Systems: Considerations about the Natural Forest and Economic Exploitation for its Conservation and How to Develop Sustainable Agroforestry Systems that Induce the Reduction of Deforestation. Inter-American Development Bank, July 2021. http://dx.doi.org/10.18235/0003693.

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This study demonstrates that the economic activity of the Amazon's natural forest has great potential yet to be developed when considering Non-Timber Forest Products (NTFPs) and those coming from agro-ecosystems (SAFs). Preliminary financial analyzes, in systems that are still incipient, point to a great potential for profitability of these alternative systems compared to traditional activities such as soybean and livestock farming, with the advantage of being conducted without degradation and deforestation, allowing the continuation with the support of the Amazonian ecological system. More re

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Bakhtiari, Sasan. Task 1. Monitoring real time materials degradation. NRC extended In-situ and real-time Monitoring. Office of Scientific and Technical Information (OSTI), March 2012. http://dx.doi.org/10.2172/1252705.

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Baker, Sarah E., Kevin W. Bowyer, Patrick J. Flynn, and P. Jonathon Phillips. Empirical evidence for iris match score degradation with time lapse in ICE 2006. Gaithersburg, MD: National Institute of Standards and Technology, 2009. http://dx.doi.org/10.6028/nist.ir.7630.

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Kimura, Mineo, Mitio Inokuti, Ken-ichi Kowari, M. A. Dillon, and A. Pagnamenta. Time-dependent aspects of electron degradation: 4, Subexcitation electrons in nitrogen and carbon dioxide. Office of Scientific and Technical Information (OSTI), January 1988. http://dx.doi.org/10.2172/5336660.

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Schutt, Timothy, and Manoj Shukla. Predicting the impact of aqueous ions on fate and transport of munition compounds. Engineer Research and Development Center (U.S.), August 2021. http://dx.doi.org/10.21079/11681/41481.

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A model framework for natural water has been developed using computational chemistry techniques to elucidate the interactions between solvated munition compounds and eight common ions in naturally occurring water sources. The interaction energies, residence times, coordination statistics, and surface preferences of nine munition related compounds with each ion were evaluated. The propensity of these interactions to increase degradation of the munition compound was predicted using accelerated replica QM/MM simulations. The degradation prediction data qualitatively align with previous quantum me

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McCoy, B. J., and G. Madras. Degradation kinetics of polymers in solution: Time-dependence of molecular weight distributions. [Quarterly report, January--March 1996]. Office of Scientific and Technical Information (OSTI), February 1996. http://dx.doi.org/10.2172/382447.

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Morrison, Mark, Joshuah Miron, Edward A. Bayer, and Raphael Lamed. Molecular Analysis of Cellulosome Organization in Ruminococcus Albus and Fibrobacter Intestinalis for Optimization of Fiber Digestibility in Ruminants. United States Department of Agriculture, March 2004. http://dx.doi.org/10.32747/2004.7586475.bard.

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Improving plant cell wall (fiber) degradation remains one of the highest priority research goals for all ruminant enterprises dependent on forages, hay, silage, or other fibrous byproducts as energy sources, because it governs the provision of energy-yielding nutrients to the host animal. Although the predominant species of microbes responsible for ruminal fiber degradation are culturable, the enzymology and genetics underpinning the process are poorly defined. In that context, there were two broad objectives for this proposal. The first objective was to identify the key cellulosomal component

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Swanson, David. Stability of ice wedges in Alaska's Arctic National Parks, 1951-2019. National Park Service, May 2022. http://dx.doi.org/10.36967/nrr-2293324.

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Ice-wedge polygons are a striking and widespread feature of the arctic landscape. Ice wedges are vulnerable to thaw because they are nearly pure ice bodies near the surface, with little insulating overlying material. Ice-wedge polygon monitoring is a part of the permafrost monitoring program for the National Park Services Arctic Inventory and Monitoring Network (ARCN, the five National Park units in northern Alaska). The present report is a re-analysis of ice-wedge condition in three study areas, based on satellite images taken in 2019 and 2020 (sampling episode 3). Results are compared to pre

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Moores, Lee, Stacy Jones, Garrett George, David Henderson, and Timothy Schutt. Photo degradation kinetics of insensitive munitions constituents nitroguanidine, nitrotriazolone, and dinitroanisole in natural waters. Engineer Research and Development Center (U.S.), September 2021. http://dx.doi.org/10.21079/11681/41900.

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Herein the matrix effects on the kinetics of aqueous photolysis for the individual munitions constituents of IMX-101: nitroguanidine (NQ), dinitroanisole (DNAN), and nitrotriazolone (NTO) are reported along with the environmentally relevant kinetics and quantum yields. Photolysis potentially represents a major degradation pathway for these munitions in the environment and further understanding the complex matrices effects on photolytic kinetics was needed. Aqueous systems are of particular interest due to the high solubility of NQ (3,800 ppm) and NTO (16,642 ppm) compared to the traditional mu

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Wolfe, S. A., H. B. O'Neill, C. Duchesne, D. Froese, J M Young, and S. V. Kokelj. Ground ice degradation and thermokarst terrain formation in Canada over the past 16 000 years. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/329668.

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Thermokarst results from thawing of excess ground ice in permafrost sediments. Thermokarst processes and landforms are controlled by ground ice type, amount and distribution, as well as the patterns of ground ice loss over time. Recent acceleration of varied thermokarst processes across diverse Canadian permafrost terrains make for a challenging task in predicting landscape-scale thaw trajectories. Using existing ground ice models, we examined the modelled amounts and spatial extent of ground ice loss relative to ground ice maxima in the last ca. 16 ka BP for relict, segregated and wedge ice.

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