Showing 1,821 - 1,840 results of 2,027 for search '"hydraulic"', query time: 0.10s Refine Results
  1. 1821
  2. 1822

    Effect of Channel Orientation and Rib Pitch-to-Height Ratio on Pressure Drop in a Rotating Square Channel with Ribs on Two Opposite Surfaces by Prabhu S. V., Arora Neelabh, Vedula R. P.

    Published 2005-01-01
    “…Experiments have been carried out for various rib pitch-to-height ratios <math alttext="$(P/e)$"> <mrow><mo>(</mo> <mrow> <mrow><mi>P</mi><mo>/</mo><mi>e</mi></mrow> </mrow> <mo>)</mo></mrow> </math> with a constant rib height-to-hydraulic diameter ratio <math alttext="$(e/D)$"> <mrow><mo>(</mo> <mrow> <mrow><mi>e</mi><mo>/</mo><mi>D</mi></mrow> </mrow> <mo>)</mo></mrow> </math> of <math alttext="$0.1$"> <mn>0.1</mn> </math>. …”
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  3. 1823

    Artificial weathering aging of PPT coatings made from recycled PET to protect concrete: Nanomechanical properties evaluation by Adrián Bórquez-Mendivil, Jorge Luis Almaral-Sánchez, Jesus Eduardo Leal-Perez, César Modesto-Acosta, Joaquin Flores-Valenzuela, Orlando Auciello, Blanca Alicia García-Grajeda, José Miguel Mendivil-Escalante, Sergio G. Flores-Gallardo, Roberto P. Talamantes-Soto, Abel Hurtado-Macías

    Published 2025-03-01
    “…The objective of this work was to artificial weathering age polypropylene terephthalate (PPT) coatings obtained from polyethylene terephthalate (PET) recycled for the evaluation of their nanomechanical properties, which are proposed for the protection of hydraulic concrete. PPT was polymerized by transesterification from recycled PET containers using glycolysis. …”
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  4. 1824
  5. 1825

    Computational analysis of heat transfer and fluid flow characteristics in a diamond microchannel heat sink with orthogonal ribs by Liang Du, Wenbo Hu, Ningkang Deng, Zhaoyang Zhang, Hongxing Wang

    Published 2025-03-01
    “…This study systematically analyzes the thermo-hydraulic characteristics of diamond microchannel heat sinks with various rib types (rhombic transverse rib, rhombic vertical rib, and rhombic orthogonal rib) and shapes (circular orthogonal rib, rhombic orthogonal rib, forward triangular orthogonal rib, reverse triangular orthogonal rib, and square orthogonal rib) using numerical simulations performed in COMSOL Multiphysics 6.0. …”
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  6. 1826

    Advanced modeling of seepage dynamics and control strategies in thick coal seams under high-confined aquifer conditions: A case study by Xuyang Chen, Xufeng Wang, Dongsheng Zhang, Liang Chen, Jiyao Wang, Zechao Chang, Dongdong Qin, Hao Lv

    Published 2025-01-01
    “…The hydraulic behavior of the connection between the floor failure area and the aquifer water-conductive zone is considered to be the root cause of mine water inrush disasters. …”
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  7. 1827
  8. 1828

    Critical technologies and geology-engineering integration practices for deep CBM production in the Yanchuannan CBM field by Zhenlong CHEN, Yunhai WANG, Xiao LIU, Bin CUI, Song YANG, Xin LI, Qilong FANG

    Published 2025-01-01
    “…Deep CBM production in this CBM field faces challenges including strong heterogeneity of reservoirs, single arrangement mode of production well patterns, low applicability of conventional hydraulic fracturing, excessively long conventional production cycles, and a high proportion of inefficient wells. …”
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    Article
  9. 1829

    L’apport de la géomatique à la connaissance de la partie terminale de l’aqueduc du Gier à Lyon by Éric Leroy

    Published 2023-12-01
    “…Analysis of the cadastral map, both Napoleonic and current, clearly shows the alignment of the plots with the elevated hydraulic structure. It is thus possible to suggest alternative routes based on road or plot boundaries. …”
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    Article
  10. 1830

    Les aqueducs de Rome : les activités de la Surintendance capitoline, une contribution essentielle à la recherche by Marina Marcelli, Massimiliano Munzi

    Published 2023-12-01
    “…They are allocated different colours on the GIS map, and linked with forms used to evaluate the resources needed for scheduled interventions.A targeted research and restoration project is currently underway on the acquedotto Traiano-Paolo, unique among the aqueducts in that components that capture water from springs near the Bracciano lake basin as well as some 57 km of ancient channels are still functioning.In 2017 the Sovrintendenza, in collaboration with the managing company ACEA ATO2 and with the support of speleo-archaeological organizations, launched a project to explore and study the artefact and map it on a GIS, in order to monitor its state of preservation and to learn more about its complex system of water capture, adduction and redistribution, which is still largely preserved in the original Roman phase.Because of the complexity of the hydraulic system, a “pilot project” was developed to determine the survey and mapping methodologies. …”
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  11. 1831

    Restructuring of small-scale constructed wetland systems and treatability of individual household wastewater through natural process by S. Mokatip, K. Chunkao, W. Wararam, S. Bualert, O. Phewnil, T. Pattamapitoon, N. Semvimol, P. Maskulrath, P. Rollap, S. Thaipakdee

    Published 2024-07-01
    “…While lastly, the total phosphorous decreased from 2.75 to 0.60 milligrams per literCONCLUSION: This treatment method can be effectively applied to small-scale constructed wetland systems within households. The recommended hydraulic retention time is between 29 and 60 hours under anaerobic conditions and 3 days under aerobic conditions. …”
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  12. 1832

    Waste marble sludge and calcined clay brick powders in conventional cement farina production for cleaner built environment by Mehmet Serkan Kırgız, Jamal Khatib, Andre Gustavo de Sousa Galdino, Said Kenai, Ahmed Ashteyat, Raul D.S.G. Campilho, Roberto Alonso Gonzalez Lezcano, Gideon Olukunle Bamigboye, N. Nagaprasad, Krishnaraj Ramaswamy

    Published 2025-01-01
    “…It can be reasonably deduced from the experimental results that marble powder is a latent hydraulic mineralogical natural additive or substitute, while brick powder is an unnatural mineralogical pozzolanic additive or substitute for cement-making processes.…”
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  13. 1833
  14. 1834

    L’aqueduc du Gier : nouvelles données sur le pont-siphon de Beaunant à Sainte-Foy-lès-Lyon (Métropole de Lyon) by David Baldassari, François Blondel, Stéphane Gaillot

    Published 2023-12-01
    “…The presence of this masonry structure suggests that in Antiquity the main channels of the river probably passed between the piers at the bottom of the eastern slope of the valley.Beyond this indication of the old route of the river, the geoarchaeological approach also provides matter for discussion on the possible causes of the collapse of the bridge, which probably involved one or more consecutive or associated factors: weaknesses in the subsoil, the influence of meteorological factors or natural disasters.The data acquired during this excavation contribute significantly to ideas about the techniques and architectural choices that governed the construction of the bridge, together with more general thinking about the dating of a hydraulic structure as important as the Gier aqueduct, which is of not insignificant impact for the analysis of the urban development of the Roman colony of Lugdunum.…”
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  15. 1835

    Analysis of Brain Tissue Poroelastic Properties Using Multiscale Modelling by Abbas Shabudin, Mohd Jamil Mohamed Mokhtarudin, Nik Abdullah Nik Mohamed, Mohd Akramin Mohd Romlay

    Published 2025-01-01
    “…Here, the effect of capillary tortuosity and radius on the effective parameters, which are the hydraulic conductivity of the capillary and interstitial space (K and G), homogenous Biot's coefficient of the blood and interstitial space (?…”
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  16. 1836

    Is grip strength linked to body composition and cardiovascular risk markers in primary schoolchildren? Cross-sectional data from three African countries by Juerg Utzinger, Nicole Probst-Hensch, Honorati Masanja, Uwe Pühse, Bassirou Bonfoh, Ivan Müller, Cheryl Walter, Rosa Du Randt, Stefanie Gall, Siphesihle Nqweniso, Peter Steinmann, Markus Gerber, Fredros O Okumu, Serge Ayekoé, Jean T Coulibaly, Dao Daouda, Bomey Clément Gba, Benal Kouassi, Sylvain G Traoré, Marceline F Finda, Elihaika G Minja, Getrud J Mollel, Johanna Beckmann, Christin Lang, Kurt Z Long

    Published 2022-06-01
    “…HGS (independent variable) was assessed with a hydraulic hand dynamometer. Inferential statistics are based on mixed linear regressions and analyses of covariance.Results Across all study sites, higher HGS was associated with lower body fat, higher muscle mass and higher fat-free mass (p&lt;0.001, 3.9%–10.0% explained variance), both in boys and girls. …”
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  17. 1837

    Gas drainage and utilization in coal mines in China: History, technological advances, and prospects by Guofu LI, Chao LI, Bichuan ZHANG, Yun XU, Zheng WANG, Xianjun ZHOU

    Published 2025-01-01
    “…During this period, gas pumping technology for adjacent strata was developed, and methods including hydraulic slotting, controlled pre-splitting blasting, and water jet reaming were tested for coal seams with low air permeability. …”
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  18. 1838
  19. 1839
  20. 1840

    Une pompe hydraulique romaine en bois en contexte d’incendie à Reims/Durocortorum by Cyril Driard

    Published 2023-12-01
    “…The discovery of this type of ancient hydraulic device is quite rare. Indeed, it is only the nineteenth specimen to be identified for the Roman Empire and merely the ninth to be discovered in the ancient Roman province of Belgica. …”
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