Academic literature on the topic 'Wooden track'

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Journal articles on the topic "Wooden track"

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NEVZORAVA, A. B., and V. V. ROMANENKO. "ASSESSMENT OF THE LOAD-BEARING CAPACITY OF COMPOSITE WOODEN SLEEPERS LAID ON A TRACK." Bulletin Sukhoi State Technical University of Gomel, no. 1 (October 2024): 5–12. http://dx.doi.org/10.62595/1819-5245-2024-3-5-12.

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The article considers the feasibility of using transition and bridge beams waste for the production of composite wooden sleepers without the need to process them to standard sizes of railway sleepers. The results of numerical calculation of the bearing capacity of composite wooden sleepers laid in the track are obtained. These results satisfy the regulatory requirements for maximum permissible pressure in the ballast under the sleeper and on the main surface of the roadbed. The calculation of the minimum thickness of the ballast under the composite wooden sleeper is given, confirming the possi
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Zougari, A., and J. MartÍnez. "The experimental validation of a numerical model for the receptance prediction." MATEC Web of Conferences 286 (2019): 01007. http://dx.doi.org/10.1051/matecconf/201928601007.

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The traditional ballasted track with wooden sleepers covers today most railway lines constructions, including the tracks of tram and metro or the industrial railway branching. In this work, we present an experimental methodology to validate a numerical model based on finite element method, the model was previously well defined using the ANSYS Parametric Design Language (APDL) and adapted to represent a classical ballasted track. The obtained result of the analysis is expressed as a frequency response of the track and it is compared to the experimental result from measurements made on the metro
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Modaboyina, Sujeeth, Sahil Agrawal, Ragib Khan, and Anju Bhari. "Intraorbital wooden foreign body, legacy of a notorious scrap: a case report." BMJ Case Reports 14, no. 4 (2021): e242885. http://dx.doi.org/10.1136/bcr-2021-242885.

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Wooden foreign bodies are notorious to be fragile and get retained as bits and bobs in the orbit. A 50-year-old woman presented to casualty with complaints of loss of vision and pain in the right eye associated with discharge from a wound in right eye upper lid. On imaging, a wooden foreign body was seen as continuous track of air. Meticulous dissection and search were done to remove bits and bobs of the wood. Patient, however, after 15 days of primary surgery reported with pus collection over wound site. Keeping suspicion of remnant wooden body piece(s), imaging and further exploration were c
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Er Akan, Asli. "Structural Behaviour of 13th and 14th Century Seljuk Mosques and Acculturation of Construction Knowledge." Prostor 30, no. 1(63) (2022): 34–43. http://dx.doi.org/10.31522/p.30.1(63).4.

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This study aims to demonstrate the acculturation of Seljuk architecture and construction techniques by tracing the development of peripheral walls in Seljuk wooden hypostyle mosques built in 13th and 14th centuries. To track the exchange of construction knowledge two Seljuk mosques (the Hanönü Mosque in Kastamonu and the Ahi Elvan Mosque in Ankara) are selected for comparison in this study. The main difference between the two mosques is their structural systems: one has a wooden peripheral wall and wooden skeleton system, while the other has a masonry peripheral wall and wooden pillars. In thi
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Darenskiy, Oleksandr, Eduard Bielikov, Olexii Dudin, Alina Zvierieva, and Anatolii Oleshchenko. "Results of theoretical and experimental studies on determining the coefficient of subgrade reaction of sleepers for the conditions of main railways with axial loads of 30-35 tons per axle." MATEC Web of Conferences 230 (2018): 01003. http://dx.doi.org/10.1051/matecconf/201823001003.

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The article considers obtaining numerical values of the coefficient of subgrade reaction of wooden and reinforced concrete sleepers with axial loads up to 30-35 tons per axle. It has been concluded that using the rolling stock with axial loads of up to 35 tons per axle is necessary in order to ensure sustainable development of the railway complex. The performance of the railway track thus should be investigated in order to predict its operation in such conditions. Generally, such studies are performed using numerical methods. One of the parameters that are required for such calculations is the
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Fu, Hao, Yushi Yang, and Sakdirat Kaewunruen. "Multi-Hazard Effects of Crosswinds on Cascading Failures of Conventional and Interspersed Railway Tracks Exposed to Ballast Washaway and Moving Train Loads." Sensors 23, no. 4 (2023): 1786. http://dx.doi.org/10.3390/s23041786.

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The interspersed railway track is an enhanced timber railway track, spot-replacing damaged wooden sleepers with new concrete sleepers to improve the bearing capacity of existing railway lines. Although this interspersed solution is characterised by low cost and short maintenance time, the interspersed tracks have worse stability than concrete tracks and can deteriorate quickly when exposed to extreme weather conditions such as heavy rains and floods. In many cases, heavy rains and floods are accompanied by strong winds. Ballast washaway can often be observed under flood conditions while the ma
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Bojarczak, Piotr, and Waldemar Nowakowski. "Automatic Diagnosis of Railway Track Elements Using Deep Learning Neural Networks." Pomiary Automatyka Robotyka 28, no. 3 (2024): 21–30. http://dx.doi.org/10.14313/par_253/21.

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The article discusses a method for automatic diagnostics of a railway track. It consists in automatic evaluation of the technical condition of selected track elements, such as rails, wooden and concrete sleepers, fasteners and turnouts. It was carried out on the basis of analysis of video images of railroad track elements recorded by two line cameras placed on the diagnostic carriage. The selected FCN-8 deep learning neural network was used to assess the technical condition of the surveyed elements, and the effectiveness of the applied algorithm was determined on the basis of such measures as
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Sharma, Ashok, and Rajan Sharma. "Retrieval of deep corneal stromal wooden foreign body using vitreoretinal foreign body forceps as scoop: An innovative technique." Indian Journal of Ophthalmology 71, no. 12 (2023): 3718–20. http://dx.doi.org/10.4103/ijo.ijo_801_23.

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A 55-year-old woman presented with a stromal wooden foreign body (FB) in the left cornea. The deep corneal stroma wooden FB was removed using vitreoretinal FB forceps as a scoop. In this innovative technique, a 26-gauge needle was used to open the track of the wooden FB. The FB was trapped in the concavity of one limb of the vitreoretinal FB forceps. The vitreoretinal forceps were gradually withdrawn and the FB was removed. The patient was treated with gatifloxacin and voriconazole six times, and atropine 1% three times daily. The patient did not develop infiltrate or hypopyon in 2 weeks. Afte
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Khvostik, M. Yu, and M. A. Starodubtseva. "Studies of the constructed rail seat supports." Vestnik of the Railway Research Institute 76, no. 6 (2017): 371–76. http://dx.doi.org/10.21780/2223-9731-2017-76-6-371-376.

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In recent decades, the use of constructed sleepers on the world's railways has been increasing: the United States, the EU countries, Japan and China. Such sleepers, having positive performance qualities of wooden sleepers (good elasticity and dielectric properties, manufacturability during laying and during repair work), do not have negative qualities of wood. The article reviews the US and EU standards for testing sleepers made of constructed materials. The classification of such sleepers is given. Examples of testing of such sleepers by specialists of JSC “VNIIZhT” for the period from 1999 t
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Ren-liang, Shan, Zhang Xiao-nan, Lu Man, and Zhao Hong-yu. "The Complex Monolithic Movement for the Brick-wooden Building in Deformation Analysis and Reinforcement." Open Civil Engineering Journal 10, no. 1 (2016): 884–90. http://dx.doi.org/10.2174/1874149501610010884.

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This paper first analyzes the reasons of complex monolithic movement of a brick-wooden building in Henan province in China. The building foundation integral underpinning technique and curved-track moving technique which combine the track sharing-monolithic movement method and efficient long distance movement method were put forward. These methods use the anchor static pile, in order to guarantee the safety of the building for complex monolithic movement. The analysis of the internal force and deformation of underpinning structure was calculated by finite element software SAP2000. A practice ca
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Dissertations / Theses on the topic "Wooden track"

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Maddela, Naveen. "Finite Element Analysis of Railway Track Wooden Sleeper." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020.

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Railway sleepers have important roles within the complex railroad. Dynamic interaction among Rail, sleeper and ballast supports are vital for the construction of dynamic model track capable of predicting its responses to impact loads due to wheel flats, wheel burns, irregularities of the rail. Railway track deteriorates over time due to the dynamic loading of passing wheeled vehicle. to ensure the secure passing of trains, the track must well design and managed.The objective of this thesis is to determine the stress in wooden rail sleeper by the considering Ballast, Sub ballast, and soil with
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Slunečková, Magdaléna. "Favorit Brno / cyklistický stadion - bikrosová dráha / architektonická studie - design / druhá etapa." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2021. http://www.nusl.cz/ntk/nusl-443701.

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The topic of this diploma thesis is the architectural study of the cycling arena – velodrome – as a part of The Hněvkovský sports ground in Brno-Komárov. The new velodrome is situated next to the existing bicycle motocross ground and serves as a facility for the track cycling, indoor cycling and BMX. The core of the velodrome consists of the 250-meter wooden steeply banked track, which, together with other sports ground’s parameters fits the requirements of International Cyling Uninon for hosting international competitions. Cycling arena includes premises for athletes, spectators (stands are d
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Mann, Elizabeth Lowell 1966. "Trace metals and the ecology of marine cyanobacteria." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/9385.

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Thesis (Ph. D.)--Joint Program in Oceanography (Massachusetts Institute of Technology, Dept. of Biology; and Woods Hole Oceanographic Institution), 2000.<br>Includes bibliographical references.<br>The marine cyanobacteria Synechococcus and Prochlorococcus are important primary producers in oligotrophic oceans. The abundance and cell division rates of these cyanobacteria can be influenced by trace metals such as iron and copper. Iron is an essential trace metal that is present in the high nutrient, low chlorophyll waters of the equatorial Pacific in extremely low concentrations. When these wate
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Kawatsura, Asako. "ESTABLISHMENT OF THE BACKGROUND CONCENTRATION IN ARABLE SOILS, WOOD COUNTY, OHIO." Bowling Green State University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1292989076.

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Ohnemus, Daniel Chester. "The biogeochemistry of marine particulate trace metals." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/87512.

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Thesis: Ph. D., Joint Program in Chemical Oceanography (Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences; and the Woods Hole Oceanographic Institution), 2014.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references.<br>Marine particles include all living and non-living solid components of seawater, representing an extremely dynamic and chemically diverse mixture of phases. The distributions of these phases are poorly constrained and undersampled in the oceans, despite interactions between living organisms and non-living min
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Armstrong, Stephanye Dawn. "Microwave-Assisted Extraction for the Isolation of Trace Systemic Fungicides from Woody Plant Material." Diss., Virginia Tech, 1999. http://hdl.handle.net/10919/27997.

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The extraction and recovery of trace organic material from semi-solid and solid matrices is often the slowest and most error-prone step of an analytical method. The conventional liquid extraction techniques for solids and semi-solids materials (Soxhlet) have two main disadvantages. The first, large volumes of organic solvent are required, which can lead to sample contamination and "losses" due to volatilization during concentration steps. The second, to achieve an exhaustive extraction can require several hours to days. With the development of sophisticated instrumentation with detection limi
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Nadimi, Fattane. "Truck routing and scheduling for wood chip transportation to a pulp mill using Simulated Annealing." Thesis, University of British Columbia, 2015. http://hdl.handle.net/2429/52025.

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Optimization and improvement techniques have been employed to improve truck transportation in the forest industry. Most studies in this area focus on log transportation and there is not much literature available on wood chip transportation which is distinct from log transportation in several ways : chip-truck transportation usually considers a longer planning period, requires a more complex driver scheduling, involves strict limitations on truck unloading capacity, and considers service priorities for major suppliers. The objective of this thesis is to model and improve truck transportation of
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Lindeberg, Johan. "X-ray based tree ring analyses /." Umeå : Dept. of Silviculture, Swedish Univ. of Agricultural Sciences, 2004. http://epsilon.slu.se/s299.pdf.

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Kash, Aaron Elliott. "The use of roll-off bins and a hook-lift equipped harwarder and truck for forest biomass utilization." Diss., [Missoula, Mont.] : The University of Montana, 2009. http://etd.lib.umt.edu/theses/available/etd-10132009-080722.

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Evans, Guy Nathaniel. "Trace element proxies and mineral indicators of hydrothermal fluid composition and seafloor massive sulfide deposit formation processes." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/111731.

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Thesis: Ph. D. in Marine Geology, Joint Program in Marine Geology and Geophysics (Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences; and the Woods Hole Oceanographic Institution), 2017.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references.<br>This thesis analyzes compositions of seafloor massive sulfide (SMS) deposits and related hydrothermal vent fluids to identify proxies of reaction zone conditions (host-rock lithology, hydrothermal fluid temperature and chemistry). Chapter 2 investigates the morphology, mineralogy, an
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Books on the topic "Wooden track"

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Martin, Reg. Making wood truck & construction vehicles. Sterling Pub. Co., 2006.

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Woodle, John. The companion book for the sound recording John Woodle, the copyright tracks, volume 1. Small Potatoes Multimedia, 1998.

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Kroesa, Renate. On the fast track to closed loop: Reports to environmentalists from pulp and paper conferences. Reach for Unbleached Foundation, 1996.

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Don, Murray, Cherwinsky Christina, and Ontario. Ministry of the Environment, eds. Preliminary investigation of trace contaminants in pulp and paper mill effluents. Ontario Ministry of the Environment, 1986.

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Office, General Accounting. International trade: Improvements needed to track and archive trade agreements : report to the chairman, Committee on Ways and Means, House of Representatives. The Office, 1999.

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Office, General Accounting. International trade: Improvements needed to track and archive trade agreements : report to the Chairman, Committee on Ways and Means, House of Representatives. The Office, 1999.

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Sandler, Corey. Official Sega Genesis and Game Gear strategies, 3RD Edition. Bantam Books, 1992.

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Brown, Cushla, and Springboard Staff. Wooden Horse Trick. Macmillan Education Australia, 2006.

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Walnut Tree II: Wooden Truck. Abdul Majid ZIkria, 2023.

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Walnut Tree II: Wooden Truck. Abdul Majid ZIkria, 2023.

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Book chapters on the topic "Wooden track"

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Avanzini, Marco, Isabella Salvador, Elisabetta Starnini, et al. "Following the Father Steps in the Bowels of the Earth: The Ichnological Record from the Bàsura Cave (Upper Palaeolithic, Italy)." In Reading Prehistoric Human Tracks. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-60406-6_14.

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AbstractThe chapter summarizes the new results of the Bàsura Revisited Interdisciplinary Research Project. The integrated interpretation of recent archaeological data and palaeosurface laser scans, along with geoarchaeological, sedimentological, geochemical and archaeobotanical analyses, geometric morphometrics and digital photogrammetry, enabled us to reconstruct some activities that an Upper Palaeolithic human group led inside a deep cave in northern Italy within a single exploration event about 14 ka calBP. A complex and diverse track records of humans and other animals shed light on indivi
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Grégoire, Jean-Claude, and Juli R. Gould. "Forest Insect–Natural Enemy Interactions." In Forest Entomology and Pathology. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-11553-0_6.

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AbstractAs illustrated in several other chapters of this book, “forest insects”, including those linked to woody plants growing outside the forest environment stricto sensu (cities, field margins, hedgerows, river banks, roads, railway tracks, etc.), play various ecological and economic roles (pests, biocontrol agents, pollinators, recyclers of nutrients, key components of trophic webs, etc.). Often, the role of natural enemies in intricate food webs can be extremely complex and may change according to the presence and prevalence of other food web components.
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Cahill, Patricia A. "Gloucester's Chair." In Object Oriented Environs. punctum books, 2016. https://doi.org/10.21983/p3.0130.1.06.

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In Geffrey Whitney’s A Choice of emblems (1586),a woodcut entitled “Dolor è medicina” depictsa “Purblinde dame” confronting a devious physician who during his regular visits to her home has been making off with her belongings.1 (See Figure 1, next page.) As the accom-panying short verse details, the woman discovers the theft precisely as the physician requests payment for having restored her sight. Turning the tables on him, she wittily responds to his demand by protesting that she remains impaired: “Bycause my sences either faile, or ells my eies bee blinde./For, where my house before was gar
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Bursíková, Petra, Milan Růžička, and Ondřej Suchý. "Preparation of Glass Sampling Containers to Determine Trace Amounts of Accelerants in Fire Samples." In Wood & Fire Safety 2024. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-59177-8_12.

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Di Cosmo, Lucio, and Patrizia Gasparini. "Forest Management and Productive Function." In Springer Tracts in Civil Engineering. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-98678-0_8.

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AbstractForestry originated as a science under the need to manage forests for timber production in a sustainable way. Since then, sustainability has been broadened to include a variety of values and services recognised as important for human well-being, while at maintaining a relevant productive function. Hence, silviculture exists as a need of humankind and not as a need of forests for their continued existence. Sustainability is obtained by adopting correct silvicultural practices and adjusting the planning in view of the most suitable management able to ensure the goals, for example, carbon
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Arican, Yagmur Emre. "Polycyclic Aromatic Hydrocarbons (PAHs)." In Food Safety. Nobel Tip Kitabevleri, 2024. http://dx.doi.org/10.69860/nobel.9786053358787.16.

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Polycyclic aromatic hydrocarbons (PAHs) are toxic substances that undergo bioaccumulation and can be found in various forms, including coal tar, fossil fuel burning, forest fires, grilling meats over open fires, cigarette smoke, diesel emissions, asphalt surfaces, tar roofs, aluminum and coke plants, and more. PAHs can initiate and promote tumors and may function as complete carcinogens, resulting in a high occurrence of tumors and mortality in laboratory animals. Exposure to PAHs can occur at home, outdoors, or at work, with a mixture of PAHs being more likely. Primary sources of exposure to
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Queiroz R.C. and Macari E.J. "Geotechnical and structural behavior of the railroad track in Large-scale Apparatus." In Proceedings of the 17th International Conference on Soil Mechanics and Geotechnical Engineering. IOS Press, 2009. https://doi.org/10.3233/978-1-60750-031-5-279.

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This paper analyses the static and dynamic behavior of the railroad track model in laboratory. Measurements of stresses and strains on a large-scale railroad track apparatus were studied. The model includes: compacted soil, representing the final layers of platform, ballast layer, and ties (steel, wooden, and pre-stressed concrete). The soil and soil ballast interface were instrumented with pneumatic stress gauge. Settlement measurement device were positioned at the same levels as the load cells. Loads were applied by hydraulic actuators, statically and dynamically. After the prescribed number
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Burnaby, Frederick. "chapter LXVI." In On Horseback Through Asia Minor. Oxford University PressNew York, NY, 1996. http://dx.doi.org/10.1093/oso/9780192825001.003.0067.

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Abstract WE rode by several Turkish and Kurd villages in the direction of Ardanusch. The track was firm and tolerably level. After a four hours’ march we crossed the Ardahan river on a wooden bridge about seventy yards long by sixteen feet wide. The structure was very much out of repair; the planks were loose in many places, here and there large holes in the timber let us see the river below. We halted at Shadavan, a Turkish village containing about thirty houses, and close to the water’s edge. I had intended to have made a longer march, but the hired steeds were wretched brutes. They had show
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Tidwell, John Edgar, and Mark A. Sanders. "“Georgia Nymphs”." In Sterling A. Brown’s, A Negro Looks At The South. Oxford University PressNew York, NY, 2007. http://dx.doi.org/10.1093/oso/9780195313994.003.0017.

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Abstract Ed and I had been talking to J. C. all morning, and at noon he asked us to have dinner with him. He wanted to put the big pot in the little one for us, but we had agreed beforehand not to take advantage of J. C.’s bounty. It wasn’t only or chiefly that his ailing daughter and her young ones needed the fat meat and the greens in the little pot. It was rather that J. C. didn’t have a well, but filled his old wooden bucket from a spring. And on this side of the track the type of community planning seemed to be: house, pig-sty (where pigs were occasionally owned), privy, and then in the d
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Raitz, Karl. "Distillery Configurations." In Bourbon's Backroads. University Press of Kentucky, 2019. http://dx.doi.org/10.5810/kentucky/9780813178424.003.0004.

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Early-nineteenth-century farmers and millers were often craft distillers, mashing and fermenting grain meal in wooden barrels before distilling the liquid in small copper pot stills. Waterwheels powered the first-generation creek-side mills and distilleries. Wood fueled early steam engines; the use of coal required access to better transportation. Second-generation distilleries, operating from the 1830s to the 1880s, used traditional pot stills,although some adopted new column stills, perfected in Scotland, when they began to mechanize. Old still buildings were often modified to accommodate ne
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Conference papers on the topic "Wooden track"

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Kurth, Jonah C., Paul D. Krauss, Jonathan C. McGormley, and James Harper. "Accelerated Corrosion Study of Direct-Fixation Fasteners." In CORROSION 2015. NACE International, 2015. https://doi.org/10.5006/c2015-06133.

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Abstract Two of Chicago’s heavy-rail transit lines run beneath the downtown core of Chicago through reinforced concrete subway tunnels constructed in the 1950s. Traction power is delivered to the train cars through a +600VDC third rail, at grade but elevated slightly above the track level. The rail cars pick up the current through shoes and then return current through the wheels to the running rails (i.e. negative return rails). The running rail track in these subway tunnels was renovated over the last decade with work that included replacing formerly wooden half-ties with cast-in-place or pre
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Zelinka, Samuel L., Joseph E. Jakes, Grant T. Kirker, Leandro Passarini, and Barry Lai. "Corrosion of Metals in Treated Wood Examined by Synchrotron Based XANES and XFM." In CORROSION 2016. NACE International, 2016. https://doi.org/10.5006/c2016-07038.

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Abstract Copper based waterborne wood preservatives are frequently used to extend the service life of wood products used in outdoor environments. While these copper based treatments protect the wood from fungal decay and insect attack, they increase the corrosion of metals embedded or in contact with the treated wood. Over the past ten years, several studies have looked at the corrosion mechanisms for metals in contact with copper treated wood. These studies have concluded that the most plausible corrosion mechanism involves the migration of copper ions from the wood treatment through the wood
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Szeliga, Michael J., and Arthur A. Thue. "Stray Current Control through Mainline Segregation: the WMATA a-Route." In CORROSION 1994. NACE International, 1994. https://doi.org/10.5006/c1994-94586.

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Abstract Prior to revenue operation on the WMATA Upper A-Route, the operators of nine high pressure natural gas pipelines indicated that they had a possible stray current interference problem. An ambitious test program was conducted which resulted in solutions which were both unique and innovative. The solutions included a combination of traction power segregation and the development of special fasteners for the wood tie and ballast tracks. The program when completed proved to be successful and the stray current activity associated with the Upper A-Route was virtually eliminated.
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Sidoriak, William. "DC Transit Rail Isolation Design, Installation, and Problem Resolutions on the Baltimore Central Light Rail Line." In CORROSION 1993. NACE International, 1993. https://doi.org/10.5006/c1993-93591.

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Abstract Construction designs for modern D.C. transit systems include the concept of "Source Control" to eliminate, or minimize the generation of stray currents. Since the alignment of the Baltimore Central Light Rail Line was in both urban and suburban areas, various types of rail construction had to be considered. Also, high levels of rail insulation had to be achieved due to utility configurations in the suburbs, and the high degree of utility congestion in the downtown Central Business District (CBD). This paper presents rail insulation methods designed for embedded track, aerial sections,
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Weller, A., A. Fettig, A. Bauerochse, and M. Eidner. "Using Ground Penetrating Radar and Induced Polarisation to Detect a Wooden Track Way." In Near Surface 2010 - 16th EAGE European Meeting of Environmental and Engineering Geophysics. European Association of Geoscientists & Engineers, 2010. http://dx.doi.org/10.3997/2214-4609.20144879.

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Weaks, H. "Forecasting “Wooden Round” Reliability During Preliminary Design." In ASME 1987 International Gas Turbine Conference and Exhibition. American Society of Mechanical Engineers, 1987. http://dx.doi.org/10.1115/87-gt-41.

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The USAF’s R&amp;M 2000 policy emphasizes the integration of reliability and maintainability considerations into a system’s preliminary design phase. This emphasis leads to unique requirements for turbine engines, including those of “wooden rounds” such as a HARPOON type missiles. In particular, it requires the development of tools for assessing the impact of design iterations on the reliability of “wooden round” weapon systems. Such tools must account for design iterations impact on storage, captive carry and launch reliability. A Markov approach is described in this paper, which provides an
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Perčin, Zvonko. "Possibility of application of concrete sleeper with under sleepers pads." In 6th International Conference on Road and Rail Infrastructure. University of Zagreb Faculty of Civil Engineering, 2021. http://dx.doi.org/10.5592/co/cetra.2020.1180.

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One of the most sensitive segments of the railway infrastructure are certainly bridges. All steel grid bridges have wooden sleeper attached to the bridge structure and cannot change the height when maintaining the upper structure rails. It has become a practice to reconstruct or replace damaged bridges in the past by taking care that the track construction is separated from the bridge constructions. One way is that steel grid structures are replaced with reinforced concrete structures in the form of a trough or if the spans are larger with steel structures in the form of a trough. The standard
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Berten, Karlien, and Bart De Pauw. "The use of a new slab track system in the renovation of the Vierendeel railway bridges in Mechelen." In IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs. International Association for Bridge and Structural Engineering (IABSE), 2021. http://dx.doi.org/10.2749/ghent.2021.0197.

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&lt;p&gt;The existing ballastless track with wooden sleepers on the Vierendeel bridges in Mechelen will be replaced by a new slab track system with continuously welded rails across the bridge. Additionally, the rails will be positioned eccentrically on the stringers due to track optimization. This paper describes the design and implementation of this new modular track system that consists of prefabricated fully welded steel frames that are bolted onto the existing superstructure. During the design stage, focus was on the required load transfer via the steel frame to the bridge superstructure,
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Berten, Karlien, and Bart De Pauw. "The use of a new slab track system in the renovation of the Vierendeel railway bridges in Mechelen." In IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs. International Association for Bridge and Structural Engineering (IABSE), 2021. http://dx.doi.org/10.2749/ghent.2021.0197.

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&lt;p&gt;The existing ballastless track with wooden sleepers on the Vierendeel bridges in Mechelen will be replaced by a new slab track system with continuously welded rails across the bridge. Additionally, the rails will be positioned eccentrically on the stringers due to track optimization. This paper describes the design and implementation of this new modular track system that consists of prefabricated fully welded steel frames that are bolted onto the existing superstructure. During the design stage, focus was on the required load transfer via the steel frame to the bridge superstructure,
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Pan, Yu, Lei Zuo, and Mehdi Ahmadian. "Design and Bench Tests of a Smart Railroad Tie for Energy Harvesting." In 2020 Joint Rail Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/jrc2020-8133.

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Abstract This paper presents the design, modeling and bench testing of a smart railroad tie for energy harvesting from the motion of railway track. The system is intended for applications that require trackside power in remote locations, such as wayside electrical devices and safety equipment, signal lights, crossing gates, wireless communication, as well as rail health monitoring systems. The smart tie, which is designed to have similar dimensions to a conventional railroad tie, is installed in the same manner as a standard tie on the track. In particular, the mechanical energy harvesting mod
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Reports on the topic "Wooden track"

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Salcido, Charles, Patrick Wilson, Justin Tweet, Blake McCan, Clint Boyd, and Vincent Santucci. Theodore Roosevelt National Park: Paleontological resource inventory (public version). National Park Service, 2022. http://dx.doi.org/10.36967/nrr-2293509.

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Theodore Roosevelt National Park (THRO) in western North Dakota was established for its historical connections with President Theodore Roosevelt. It contains not only historical and cultural resources, but abundant natural resources as well. Among these is one of the best geological and paleontological records of the Paleocene Epoch (66 to 56 million years ago) of any park in the National Park System. The Paleocene Epoch is of great scientific interest due to the great mass extinction that occurred at its opening (the Cretaceous–Paleogene extinction event), and the unusual climatic event that
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Bateman McDonald, Jacob. Wadeable Stream Habitat Monitoring at Kennesaw Mountain National Battlefield Park: 2023 Change Report. National Park Service, 2025. https://doi.org/10.36967/2313926.

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The Southeast Coast Network (SECN) stream habitat monitoring protocol collects data to give park resource managers insight into the status of, and trends in, stream and near-channel habitat conditions. Streams chosen for assessment were specifically targeted for management interest or to provide a context for similar-sized stream(s) within the park. This report documents the 2023 resurvey of wadeable stream habitats in Kennesaw Mountain National Battlefield Park (KEMO), focusing on two third-order streams—Noses Creek (KEMO001) and John Ward Creek (KEMO002). It is the third monitoring event, fo
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Casper, Gary, Stefanie Nadeau, and Thomas Parr. Acoustic amphibian monitoring, 2019 data summary: Isle Royale National Park. National Park Service, 2022. http://dx.doi.org/10.36967/2295506.

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Amphibians are a Vital Sign indicator for monitoring long-term ecosystem health in seven national park units that comprise the Great Lakes Network. We present here the results for 2019 amphibian monitoring at Isle Royale National Park (ISRO). Appendices contain tabular summaries for six years of cumulative results. The National Park Service Great Lakes Inventory and Monitoring Network established 10 permanent acoustic amphibian monitoring sites at ISRO in 2015. Acoustic samples are collected by placing automated recorders with omnidirectional stereo microphones at each of the 10 sampling sites
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Casper, Gary, Stefanie Nadeau, and Thomas Parr. Acoustic amphibian monitoring, 2019 data summary: Sleeping Bear Dunes National Lakeshore. National Park Service, 2022. http://dx.doi.org/10.36967/2295512.

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Amphibians are a Vital Sign indicator for monitoring long-term ecosystem health in seven national park units that comprise the Great Lakes Network. We present here the results for 2019 amphibian monitoring at Sleeping Bear Dunes National Lakeshore (SLBE). Appendices contain tabular summaries for six years of cumulative results. The National Park Service Great Lakes Inventory and Monitoring Network established 10 permanent acoustic amphibian monitoring sites at SLBE in 2013. Acoustic samples are collected by placing automated recorders with omnidirectional stereo microphones at each of the 10 s
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Casper, Gary, Stefanie Nadeau, and Thomas Parr. Acoustic amphibian monitoring, 2019 data summary: Pictured Rocks National Lakeshore. National Park Service, 2022. http://dx.doi.org/10.36967/2295509.

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Amphibians are a Vital Sign indicator for monitoring long-term ecosystem health in seven national park units that comprise the Great Lakes Network. We present here the results for 2019 amphibian monitoring at Pictured Rocks National Lakeshore (PIRO). Appendices contain tabular summaries for six years of cumulative results. The National Park Service Great Lakes Inventory and Monitoring Network established 10 permanent acoustic amphibian monitoring sites at PIRO in 2013. Acoustic samples are collected by placing automated recorders with omnidirectional stereo microphones at each of the 10 sampli
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Casper, Gary, Stfani Madau, and Thomas Parr. Acoustic amphibian monitoring, 2019 data summary: Mississippi National River and Recreation Area. National Park Service, 2022. http://dx.doi.org/10.36967/2295507.

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Amphibians are a Vital Sign indicator for monitoring long-term ecosystem health in seven national park units that comprise the Great Lakes Network. We present here the results for 2019 amphibian monitoring at Mississippi National River and Recreation Area (MISS). Appendices contain tabular summaries for six years of cumulative results. The National Park Service Great Lakes Inventory and Monitoring Network established 10 permanent acoustic amphibian monitoring sites at MISS in 2015. Acoustic samples are collected by placing automated recorders with omnidirectional stereo microphones at each of
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Mosalam, Khalid, Amarnath Kasalanati, and Grace Kang. PEER Annual Report 2016. Pacific Earthquake Engineering Research Center, University of California, Berkeley, CA, 2017. http://dx.doi.org/10.55461/anra5954.

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The Pacific Earthquake Engineering Research Center (PEER) is a multi-institutional research and education center with headquarters at the University of California, Berkeley. PEER’s mission is to develop, validate, and disseminate performance-based seismic design technologies for buildings and infrastructure to meet the diverse economic and safety needs of owners and society. The year 2016 began with a change of leadership at PEER. On January 1, Professor Khalid Mosalam became the new PEER Director as Professor Stephen Mahin completed his 6- year term. Also in early 2016, Dr. Yousef Bozorgnia s
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Tweet, Justin, Holley Flora, Summer Weeks, Eathan McIntyre, and Vincent Santucci. Grand Canyon-Parashant National Monument: Paleontological resource inventory (public version). National Park Service, 2021. http://dx.doi.org/10.36967/nrr-2289972.

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Grand Canyon-Parashant National Monument (PARA) in northwestern Arizona has significant paleontological resources, which are recognized in the establishing presidential proclamation. Because of the challenges of working in this remote area, there has been little documentation of these resources over the years. PARA also has an unusual management situation which complicates resource management. The majority of PARA is administered by the Bureau of Land Management (BLM; this land is described here as PARA-BLM), while about 20% of the monument is administered by the National Park Service (NPS; th
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Systematic rare plant survey at the Cuyahoga Valley National Park: Final report (public version). National Park Service, 2023. http://dx.doi.org/10.36967/2300360.

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EnviroScience completed a systematic rare plant survey in the Cuyahoga Valley National Park (CUVA). CUVA staff use the visitor use management planning (VUMP) process to draft proposed management zones for the park to track resource degradation and guide management decisions. The VUMP process has identified a critical need for a park-wide rare plant inventory to supplement outdated surveys conducted from 1986 to the early 2000s. This systematic transect-based survey was designed to provide current rare plant data to inform the VUMP process. These updated rare plant data will support the Nationa
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Systematic rare plant survey at the Cuyahoga Valley National Park: Final report (sensitive version). National Park Service, 2023. http://dx.doi.org/10.36967/2300521.

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EnviroScience, Inc. completed a systematic rare plant survey in the Cuyahoga Valley National Park (CUVA). CUVA staff use the visitor use management planning (VUMP) process to draft proposed management zones for the park to track resource degradation and guide management decisions. The VUMP process has identified a critical need for a park-wide rare plant inventory to supplement outdated surveys conducted from 1986 to the early 2000s. This systematic transect-based survey was designed to provide current rare plant data to inform the VUMP process. These updated rare plant data will support the N
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