Добірка наукової літератури з теми "Sub-lining system"

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Статті в журналах з теми "Sub-lining system"

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Pham, Vi Van, Anh Ngoc Do, Hung Trong Vo, Daniel Dias ., Thanh Chi Nguyen, and Do Xuan Hoi. "Effect of soil Young’s modulus on Sub-rectangular tunnels behavior under quasi-static loadings." Journal of Mining and Earth Sciences 63, no. 3a (2022): 10–21. http://dx.doi.org/10.46326/jmes.2022.63(3a).02.

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Tunnels are an important component of the transportation and utility system of cities. They are being constructed at an increasing rate to facilitate the need for space expansion in densely populated urban areas and mega-cities. The circular and rectangular tunnels cannot completely meet the requirements of underground space exploitation regarding the cross-section. Sub-rectangular tunnels are recently used to overcome some drawbacks of circular and rectangular tunnels in terms of low utilization space ratio and stress concentration, respectively. However, the behavior of the sub-rectangular t
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Zhao, Kai, Michele Janutolo, and Guo Xing Chen. "3D Simulation of Mechanised Excavation in Brittle Rock." Applied Mechanics and Materials 353-356 (August 2013): 1724–31. http://dx.doi.org/10.4028/www.scientific.net/amm.353-356.1724.

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During the excavation by TBM of the Aicha Exploratory Tunnel along the Brenner Base Tunnel in Italy, in hard brittle granitic rocks, an instability phenomenon occurred at chainage 6+151. The left-hand sidewall lining partially collapsed for a length of approximately 60m. This led to a stoppage of the TBM lasting about 4 months. With the reconstruction of the geological model, a sub-vertical fault, not forecast at the design stage, was identified parallel to the direction of the excavation. In this paper, a three-dimensional (3D) model, which simulates the complex interaction between the rock m
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Zheng, Shengdi, Xiongyao Xie, and Biao Zhou. "Accounting Method and Indicators of Multilevel CO2 Emissions Based on Cost During Construction of Shield Tunnels." Applied Sciences 14, no. 20 (2024): 9552. http://dx.doi.org/10.3390/app14209552.

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With the rapid expansion of shield tunnel projects in China, precise accounting of CO2 emissions throughout the entire process is essential for advancing green and low-carbon construction practices. This paper introduces an innovative CO2 accounting methodology utilizing a cost-based carbon emission coding system. It adopts a multilevel approach to carbon emission accounting, aligned with this coding system, which facilitates a detailed examination of carbon emission ratios and characteristics across various construction techniques. The analysis includes six typical shield tunnel projects vary
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., Tien Tai Nguyen, and Anh Ngoc Do . "Influence of Interior Column on the Behaviour of Quasi-Rectangular Tunnel." Journal of Mining and Earth Sciences 65, no. 2 (2024): 22–29. http://dx.doi.org/10.46326/jmes.2024.65(2).03.

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Анотація:
The growing population in major cities around the world requires significant development of transportation infrastructure, especially underground system. It requires the construction of more subway lines, and larger tunnel cross-sections. In underground construction, a cross-sectional shape which is a combination of circular and rectangular tunnels is an advanced trend. This shape incorporates the advantages of both forms. There are two terminologies used to classify these shapes, including sub-rectangular and quasi-rectangular tunnels. While the sub-rectangular tunnel lacks an interior column
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Nirsatmanto, Arif. "GENETIC VARIATION OBSERVED IN COMPOSITE SEEDLING SEED ORCHARD OF Acacia mangium Willd. AT CENTRAL JAVA, INDONESIA : IMPLICATIONS FOR INCREASING GENETIC GAIN AND SEED PRODUCTION." JOURNAL OF FORESTRY RESEARCH 9, no. 2 (2012): 91–99. https://doi.org/10.20886/ijfr.2012.9.2.91-99.

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As part of multiple-population breeding scheme using sub-lining system, a composite seedling seed orchard of was established at Central Java, Indonesia. The orchard comprises a combination of the best 40 plus tree families selected from four sub-lines in the first-generation of Acacia mangium progeny trial. The design of orchard is randomized complete block laid-out as four line tree-plot of six replications with a spacing of 2 x 4 meter. Variation among sub-lines and families within sub-line, and genetic parameters for height, dbh and volume were investigated at age of 24 months. The aim of t
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AL-Kaisei, Bushra I., Taghreed Jabbar Humadai, Eman H. rY Al-Taee, Ali N. Faraj Alamaary, and Anfal Mahdi M. Salih. "Toxicopathological Effects of Aluminum Chloride (AlCl3) in Reproductive System of Female Albino Mice." Journal of Kerbala for Agricultural Sciences 4, no. 5 (2017): 202–20. http://dx.doi.org/10.59658/jkas.v4i5.705.

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The present study was designed to investigate the toxic effects of aluminum chloride AlCl3 injected intraperitonally of albino female to study the clinical signs and histopathological changes in reproductive system. (159) of Female mice in the age of puberty and weights ranged (30-35) g were used in this study which included three experiments: first experiment: - This experiment was conducted on 87 female mice, divided into 2 groups by intrapertional injection, the first group contained (15) female mice for the purpose of knowing the lowest value and the highest value in the pilot study, while
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Goffey, G. "The Birgitta Field, Block 22/19a, UK North Sea." Geological Society, London, Memoirs 52, no. 1 (2020): 371–81. http://dx.doi.org/10.1144/m52-2018-18.

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AbstractBirgitta Field was discovered by well 22/19-1 which encountered a 230 ft gas–condensate column in Triassic Skagerrak Formation and tested at a combined rate of 38.3 MMscfgd and 3750 bcpd. The tilted-fault block trap forms the crest of a Triassic ‘pod’ or mini-basin formed by salt withdrawal during Triassic extension, further rotated and eroded during Jurassic extension. Field extent is supported by apparent seismic hydrocarbon indications. An early oil charge was likely converted to condensate by Plio-Pleistocene gas influx and rapid burial, whilst an underlying palaeoresidual gas colu
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Samargandi, Ramy. "Etiology, pathogenesis, and management of angiosarcoma associated with implants and foreign body: Clinical cases and research updates." Medicine 103, no. 18 (2024): e37932. http://dx.doi.org/10.1097/md.0000000000037932.

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Angiosarcomas are rare and highly malignant soft tissue sarcomas originating from endothelial cells lining the lymphatic or vascular system. While they predominantly emerge from (sub)cutaneous regions, occurrences have been reported throughout the body. The etiology of angiosarcoma remains elusive in most clinical cases. Nevertheless, several prognosis risk factors play a pivotal role, including chronic lymphedema, therapeutic irradiation, environmental carcinogens, familial syndromes, and the presence of foreign materials like metallic objects and biomedical implants. Despite evidence implica
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Riley, J., and R. J. Henderson. "Pentastomids and the tetrapod lung." Parasitology 119, S1 (1999): S89—S105. http://dx.doi.org/10.1017/s0031182000084651.

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SUMMARYPentastomids comprise a highly specialized taxon of arthropod-like parasites that probably became adapted to the lungs of amphibians and reptiles early in their long evolutionary history. Few other macroparasites exploit this particular niche. Pentastomids are often large, long-lived and yet they cause little observable pathology in lungs, despite being haematophagous. The lungs of all tetrapods are lined with pulmonary surfactant, a remarkable biological material consisting of a complex mixture of phospholipids, neutral lipids and proteins that has the unique ability to disperse over t
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Borisenko, Oksana, Sergey Logvinkov, Galina Shabanova, and Oksana Myrgorod. "Thermodynamics of Solid-Phase Exchange Reactions Limiting the Subsolidus Structure of the System MgO-Al2O3-FeO-TiO2." Materials Science Forum 1038 (July 13, 2021): 177–84. http://dx.doi.org/10.4028/www.scientific.net/msf.1038.177.

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Анотація:
The basis of modern materials science is multicomponent systems, on their basis it is possible to create various combinations of phases in structural materials with a set of specified properties. The investigated system MgO-Al2O3-FeO-TiO2 is promising for the production of periclase-spinel refractories used as lining of rotary kilns during cement clinker firing, which are highly resistant to chemical corrosion when exposed to a gas environment and cement clinker components; thermomechanical stresses. However, in the reference literature and scientific articles, no information was found on the
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Частини книг з теми "Sub-lining system"

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Petkovšek Ana, Prestor Joerg, and Majes Bojan. "The impact of Ljubljana's municipal waste landfill on ground and groundwater." In Proceedings of the 16th International Conference on Soil Mechanics and Geotechnical Engineering. IOS Press, 2005. https://doi.org/10.3233/978-1-61499-656-9-2311.

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Анотація:
The municipal waste landfill Barje (Ljubljana, Slovenia) is located in the northern edge of the Ljubljana Marshland, which is one of the deepest marshlands in Europe. The foundation ground consists about a 35 m thick layer of highly compressible soils, under which there are several separate gravel aquifers. The Upper aquifer is connected to the alluvial aquifer, which is also the main source of the drinking water for Ljubljana. Due to the consolidation in some parts of the landfill, settlements have already reached the height of 2 m or more. To improve the efficiency of bottom lining system, i
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Тези доповідей конференцій з теми "Sub-lining system"

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Hals, Gry Lysaker. ""Rubber Materials for Corrosion and Thermal Insulation"." In CORROSION 2006. NACE International, 2006. https://doi.org/10.5006/c2006-06023.

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Abstract A rubber compound may be chemically resistant to most corrosive liquids, gases, salt water, and ozone and UV light. Where steel is exposed to corrosion, it can be protected with a rubber lining. Because of its elasticity and strength, rubber has extremely well wear resistance. Offshore installations producing oil and gas have a great need for protective coatings and linings in order to operate safely and continuously within the life of the fields (min. 25 years). Due to the possible risk of clogging of sub sea oil and gas piping by wax and hydrate formation, thermal insulation is nece
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Broski, Noah, Christopher Keener, Theodore Loizos, et al. "A New Experimental Facility for the Study of Blade Tip Rubs at Engine Relevant Temperatures." In ASME Turbo Expo 2024: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2024. http://dx.doi.org/10.1115/gt2024-129413.

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Abstract As aircraft engines become more and more efficient, minimizing blade tip clearance in all rotating components of the turbomachinery is critical. This has reduced the distance between the rotating blade tips and the stationary casing to the point that small deviations in manufacturing, uneven thermal expansion, or centrifugal growth can cause the blade to contact the engine’s abradable casing lining. This abradable lining is added to the casing with the foresight that blades are likely to rub against it. In some cases, the clearances are designed so that the blades will cut into this a
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Ward, J., C. K. Tan, and R. J. Tucker. "Development of a Spectral Radiation Model to Predict the Transient Performance of a Metal Reheating Furnace." In ASME 2009 International Mechanical Engineering Congress and Exposition. ASMEDC, 2009. http://dx.doi.org/10.1115/imece2009-11114.

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The use of computational fluid dynamics for simulation of combustion processes has made significant advances in recent years particularly for the design of individual burners and the prediction of pollutant formation and emission. However, the computational requirements of these models can still be too great for overall furnace thermal design purposes particularly if the transient performance is required. Thermal radiation is usually the dominant mode of heat transfer to the load or stock in industrial fuel-fired furnaces since the contribution of convection is relatively small. Thus predictio
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Roy, Ting C., Kamel Bennaceur, Daniel Markel, et al. "A Novel Shaped Charge Engineered from Nano-metallic Glass Composite / High Entropy Alloy Liner for Debris Free Perforation Tunnel with Improved Reservoir Conductivity Leading to Enhanced Production." In Abu Dhabi International Petroleum Exhibition & Conference. SPE, 2021. http://dx.doi.org/10.2118/207697-ms.

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Abstract There is an unmet need for a clean perforating tunnel, for deep-water natural completions that reduces fluid friction, providing better reservoir connectivity and thus enhanced production. As a disruptive innovator in the technology space, particularly in the energy sector, we have now bridged this technology gap through the synthesis of a novel alloy, which when cold isostatic pressed into a conical shaped charge liner enables a unique response. During the detonation event, the jet created from our novel degradable liner punctures the casing and progresses to penetrate the formation
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