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Journal articles on the topic 'Winter hydraulic failure'

Author: Grafiati

Published: 6 July 2024

Last updated: 31 July 2025

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1

Tolmachov, Serhij. "Research of the Reasons of Frost Destruction of Road Concrete." Key Engineering Materials 864 (September 2020): 175–79. http://dx.doi.org/10.4028/www.scientific.net/kem.864.175.

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The article analyzes the causes of the destruction of road concrete in the winter. The basic theories of concrete failure during freezing are presented. Hypothesis of R. Collins according to which the destruction occurs as a result of the pressure of ice, which is formed when water freezes onto the pore walls. The hydraulic pressure hypothesis of T. Powers, according to which the main cause of concrete destruction during cyclic freezing and thawing, is the hydraulic pressure that creates water in the pores and capillaries of concrete under the action of ice. The hypothesis of thermal destructi

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2

Łydźba, Dariusz, and Maciej Sobótka. "State of Strength in Massive Concrete Structure Subjected to Non-Mechanical Loads." Studia Geotechnica et Mechanica 36, no. 2 (2015): 37–43. http://dx.doi.org/10.2478/sgem-2014-0018.

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Abstract The paper deals with an impact of non–mechanical loads on the state of strength in massive concrete hydraulic structures. An example of hydroelectric plant subjected to the effect of water temperature annual fluctuation is considered. Numerical analysis of transient thermal–elasticity problem was performed. After determining the temperature distributions within the domain, the Duhamel-Neumann set of constitutive equations was employed to evaluate fields of mechanical quantities: displacement, strain and stress. The failure criterion proposed by Pietruszczak was adopted in assessing wh

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3

Holder, Graham K. "Sault Ste. Marie Lock reconstruction: hydraulic model studies of the stop log emergency closure and lock filling and emptying systems." Canadian Journal of Civil Engineering 25, no. 6 (1998): 1003–40. http://dx.doi.org/10.1139/l98-033.

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In July 1987, a section of the southwest wall of Sault Ste. Marie Lock failed during a locking operation when a portion of limestone facing, 60 m by 8 m, separated from the rubble backing wall. Engineering investigations resulted in the selection of the Recreational Lock Option, involving either downsizing the lock chamber within the existing lock or constructing a new lock as the most viable solutions. A Dry Dock Option, where the lock would be used to store craft during the winter months, was also considered. However, this option was abandoned during the course of testing. The engineering in

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4

Chen, A. C. T., and J. Lee. "Large-Scale Ice Strength Tests at Slow Strain Rates." Journal of Offshore Mechanics and Arctic Engineering 110, no. 3 (1988): 302–6. http://dx.doi.org/10.1115/1.3257066.

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In the winter of 1979/80, five petroleum companies participated in an Exxon Production Research Company program in which thirteen large-scale ice strength tests were conducted offshore in the vicinity of Prudhoe Bay. The purpose of the program was to determine the uniaxial compressive strength of annual sea ice as a function of strain rate and direction of loading with respect to preferred crystal alignment. Full ice sheet thickness test blocks with dimensions of 10 ft × 20 ft (3.05 m × 6.10 m) were cut free from the surrounding sheet ice. A hydraulic loading system with two million pounds of

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Aravani, Vasiliki P., Konstantina Tsigkou, Vagelis G. Papadakis, Wen Wang, and Michael Kornaros. "Anaerobic Co-Digestion of Agricultural Residues Produced in Southern and Northern Greece." Fermentation 9, no. 2 (2023): 131. http://dx.doi.org/10.3390/fermentation9020131.

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In Greece biomass is often being disposed of uncontrollably, resulting in significant environmental impacts. The aim of this study is the single-stage anaerobic co-digestion assessment, valorizing Northern and Southern Greece mixtures, resulting from previous literature reviews, experimental designs, and biochemical methane potential (BMP) assays. Regarding the methane yield maximization, in Northern Greece, the most suitable mixture was 10% corn silage, 80% cattle manure, and 10% malt; while in Southern Greece it was 10% corn silage, 57% cattle manure, 23% orange peels, and 10% olive pomace f

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6

Amey, Katherine Springer. "Revised Predictive Model for Successful Introduction of Native Ohio Brook Trout (Salvelinus fontinalis) in Select Streams in Geauga and Lake Counties, Ohio a." Ohio Journal of Science 114, no. 2 (2014): 19. http://dx.doi.org/10.18061/ojs.v114i2.4433.

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Eight cold-water streams in Lake and Geauga Counties, Ohio were evaluated to develop a revised predictive model to assess future streams for the introduction of threatened native Ohio Brook Trout (Salvelinus fontinalis). A 15-month study was conducted, ending May 2010, in streams where Brook Trout were previously introduced during the years 1997-2002. Fifty percent of the sixteen original reintroduction streams failed to support the establishment of self-sustaining populations of Brook Trout, indicating there were additional factors contributing to their success and failure. Of the 8 streams i

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7

MacBean, Natasha, Russell L. Scott, Joel A. Biederman, et al. "Testing water fluxes and storage from two hydrology configurations within the ORCHIDEE land surface model across US semi-arid sites." Hydrology and Earth System Sciences 24, no. 11 (2020): 5203–30. http://dx.doi.org/10.5194/hess-24-5203-2020.

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Abstract. Plant activity in semi-arid ecosystems is largely controlled by pulses of precipitation, making them particularly vulnerable to increased aridity that is expected with climate change. Simple bucket-model hydrology schemes in land surface models (LSMs) have had limited ability in accurately capturing semi-arid water stores and fluxes. Recent, more complex, LSM hydrology models have not been widely evaluated against semi-arid ecosystem in situ data. We hypothesize that the failure of older LSM versions to represent evapotranspiration, ET, in arid lands is because simple bucket models d

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8

Mazur, I., and M. Shcherbinin. "Investigation of dynamic processes in the hydraulic system of clamping the staffs of the segment unwinder of the unit of aggregation of rolls pipe welding machine 20-114." System technologies 1, no. 138 (2022): 98–114. http://dx.doi.org/10.34185/1562-9945-1-138-2022-09.

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In the technological line for the production of small diameter pipes used segment un-winder staffs with a cantilever drum and additional support. The experience of its operation has shown that one of its main shortcomings is the unsatisfactory operation of the hydraulic system clamping staffs. In the hydraulic clamping system of the staffs there are increased dynamic loads, which lead to the failure of components and elements of the hydraulic system. The layout of the hydraulic clamping system of the headquarters is made for design and technological rea-sons, without taking into account the in

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9

Farhadzadeh, Ali, Tao Xiang, Mohammad Khosravi, and Ali Khosravi. "RECESSION BY RANDOM WAVES: INSIGHTS FROM PHYSICAL MODELING OF CONSOLIDATED SANDY BLUFF." Coastal Engineering Proceedings, no. 38 (May 29, 2025): 38. https://doi.org/10.9753/icce.v38.sediment.38.

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Coastal bluffs are dynamic landforms that recede due to various physical processes (Kamphuis, 1990). Understanding these processes is essential for effective bluff erosion management. This research investigates the physical mechanisms governing sandy bluff recession under random waves and fluctuating water levels. Wave action generates hydraulic pressures on the bluff, removing sediment and undermining stability. Toe erosion from wave impact causes undercutting and basal failures. Higher water levels increase hydraulic loading and erosion, while lower levels expose the bluff to more wave actio

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Fish, Katherine E., Rebecca L. Sharpe, Catherine A. Biggs, and Joby B. Boxall. "Impacts of temperature and hydraulic regime on discolouration and biofilm fouling in drinking water distribution systems." PLOS Water 1, no. 8 (2022): e0000033. http://dx.doi.org/10.1371/journal.pwat.0000033.

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Discolouration is the greatest cause of customer dissatisfaction with drinking water quality, potentially masking other failures, including microbial issues, which can impact public health and well-being. The theorised association between biofilms (complex microbial communities) and discolouration within drinking water distribution systems (DWDS) was explored, whilst studying the impact and interactions of seasonal temperature variations and hydraulic regime. Transferability of findings to operational DWDS was ensured by using a temperature controlled, full-scale distribution experimental faci

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11

Van Rooij, Mahaut, Thierry Améglio, Olivier Baubet, Nathalie Bréda, and Guillaume Charrier. "Potential processes leading to winter reddening of young Douglas-fir Pseudotsuga menseizii in Europe." Annals of Forest Science 81, no. 1 (2024). http://dx.doi.org/10.1186/s13595-024-01242-x.

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Abstract Key message Winter reddening of young Douglas-fir (Pseudotsuga menziesii Mirb. Franco), triggered by large thermal fluctuations in late winter, is a critical problem for European forestry. A literature review identified certain climatic conditions that are characteristic of ‘reddening’ years, including warm daily temperatures, high daily temperature amplitude, low relative humidity, moderate wind speeds, as well as the occurrence of freeze-thaw cycles with cold night temperatures. By describing the triggering environmental and stand factors, we propose three hypotheses for the physiol

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12

Strelbitskyi, Viktor. "ДОСЛІДЖЕННЯ НЕСПРАВНОСТЕЙ ГІДРАВЛІЧНИХ РУКАВІВ ПРИ ЕКСПЛУАТАЦІЇ ВИЛОЧНИХ НАВАНТАЖУВАЧІВ В МОРСЬКИХ ПОРТАХ". International scientific and technical conference Information technologies in metallurgy and machine building, 24 квітня 2024, 120–23. http://dx.doi.org/10.34185/1991-7848.itmm.2024.01.020.

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This study focuses on hydraulic hoses utilized in the hydraulic systems of forklifts. The investigation examined 8 forklifts, each with a loading capacity of 10 tons. The check took place every six months over a three-year span. Before and after each shift, the forklift operator performed visual checks and hydraulic system and brake а inspections. The research findings indicated that the most frequent hose malfunction was a result of a rupture. The failure rate noticeably increased during the winter, attributable to the low temperatures' adverse effect on the hoses' physical and mechanical pro

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13

Hu, Zihao, Liangjun Zhu, Shuguang Liu, Pifeng Lei, Rong Zhang, and Paolo Cherubini. "Xylem adjustment and growth response of early- and late-successional tree species to rapid warming." European Journal of Forest Research, February 1, 2024. http://dx.doi.org/10.1007/s10342-023-01655-9.

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AbstractClimate changes have dramatically affected forest succession. However, how trees at different successional stages respond to climate warming is unclear in the subtropics. Here, we compared the radial growth (RW) and xylem features of the early-successional stage Castanea mollissima and late-successional stage Quercus fabri in subtropical forests and assessed their response to climate changes. All parameters, including RW, number of vessels (VN), vessel density (VD), mean (MVA) and total (TVA) vessel area, percentage of conductive area within xylem (RCTA), theoretical (Kh) and xylem-spe

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14

Han, Yangang, Jiaojiao Deng, Wangming Zhou, Qing-Wei Wang, and Dapao Yu. "Seasonal Responses of Hydraulic Function and Carbon Dynamics in Spruce Seedlings to Continuous Drought." Frontiers in Plant Science 13 (May 4, 2022). http://dx.doi.org/10.3389/fpls.2022.868108.

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Drought is expected to increase in the frequency and duration associated with climate change. Although hydraulic function and carbon (C) storage have been widely recognized as key components to plant survival under a single drought, the physiological responses to continuous drought remain largely unknown, particularly for high northern temperate and boreal forests which are sensitive to water stress. In this study, we quantified the survival, growth, gas exchange, water relations, and nonstructural carbohydrates (NSCs) in 3-year-old Jezo spruce (Picea jezoensis) seedlings responding to continu

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15

Haarstad, Ketil, Trond Maehlum, and Per I. Kraft. "Treatment wetlands for landfill leachates - case studies from Norway." Linnaeus Eco-Tech, June 4, 2019, 89–97. http://dx.doi.org/10.15626/eco-tech.2001.009.

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The paper describes operational experiences of landfill leachate treatment systems at threeNorwegian landfill sites, with emphasis on the reduction of COD, nitrogen and Feconcentrations. The leachate systems described consist of aerated lagoons with aspiratorpropeller aerators/mixers, and horizontal subsurface flow treatment wetlands. Results ofleachate monitoring and treatment efficiencies are presented. Operational data show thatleachate treatment with aerated lagoons has problems with removal of organic matter andnitrogen, but remove Fe. Failure seems to depend on high loads (especially in

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16

Pal, D. K., and P. Tiwary. "Pedogenic Processes Derived Plant Available Water Capacity (PAWC) for Rain-Fed Deep-Rooted Crops in Indian Vertisols: A Pragmatic Method." Agropedology 32, no. 1 (2019). http://dx.doi.org/10.47114/j.agroped.2022.jun6.

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Global pedologists and edaphologists have created a huge database on the properties and management of smectitic Vertisols (cracking clay soils, CCS) but they are not adequate to optimize their use and management. This review is a synthesis of research done in the recent past at ICAR-NBSS, Nagpur, to search for real soil moisture status during crop growth. Despite the fact that the smectitic CCS do retain the highest amount of water both at 33 kPa and 1500 kPa, they have limitations to both rainy season and winter crops in the majority of CCS of central India under semi-arid tropical (SAT) envi

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17

Akhmedov, Akbar, Nodirjon Bobokandov, Henrik Krehenwinkel, et al. "Wood Anatomical and Hydraulic Traits of Tamarix Species Across a Large Eurasian Gradient Show a Stronger Climatic Than Phylogenetic Signal." Journal of Biogeography, February 3, 2025. https://doi.org/10.1111/jbi.15096.

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ABSTRACTAimTamarisk (Tamarix) is the predominant but taxonomically complex genus of the Tamaricaceae. The morphologically similar shrub or tree species grow in arid, salt‐influenced habitats of Eurasia and Africa. We sampled woody shoots of seven species at the eastern margin (NW China; T. ramosissima) and the centre (Uzbekistan; T. hispida) of the Indo‐Turanian region as well as at the eastern (Israel; T. aphylla, T. negevensis, T. nilotica) and western margin (southern Spain; T. boveana, T. gallica) of the Mediterranean region, the two diversity centres of the genus. To explore the drivers o

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