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Journal articles on the topic 'Emptying reservoirs'

Author: Grafiati

Published: 27 July 2024

Last updated: 31 July 2025

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1

Wang, Yujun, Changsai Han, and Xiping Zhao. "Optimization Study on Sequential Emptying and Dredging for Water Diversity Reservoir Group." Water 16, no. 17 (2024): 2482. http://dx.doi.org/10.3390/w16172482.

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Reservoir sediment severely impacts water supply in water-scarce regions, making reservoir dredging an urgent global issue. The investment required for deep-water dredging far exceeds that for dry land dredging. Therefore, against the backdrop of the national water network construction, this study focuses on a typical inter-basin water transfer project in Northern China. To increase the proportion of dry land dredging volume and save costs, this study uses compensation reservoirs to replace the emptied reservoir in undertaking water supply tasks as a constraint. Single-objective optimization m

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2

Barton, Samantha. "Emptying reservoirs of latent HIV-1." Nature Reviews Drug Discovery 4, no. 11 (2005): 886. http://dx.doi.org/10.1038/nrd1888.

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Smith, Nicholas M., Hossein Ebrahimi, Ranajay Ghosh, and Andrew K. Dickerson. "High-speed microjets issue from bursting oil gland reservoirs of citrus fruit." Proceedings of the National Academy of Sciences 115, no. 26 (2018): E5887—E5895. http://dx.doi.org/10.1073/pnas.1720809115.

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The rupture of oil gland reservoirs housed near the outer surface of the citrus exocarp is a common experience to the discerning citrus consumer and bartenders the world over. These reservoirs often rupture outwardly in response to bending the peel, which compresses the soft material surrounding the reservoirs, the albedo, increasing fluid pressure in the reservoir. Ultimately, fluid pressure exceeds the failure strength of the outermost membrane, the flavedo. The ensuing high-velocity discharge of oil and exhaustive emptying of oil gland reservoirs creates a method for jetting small quantitie

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Shagapov, V. Sh, and G. Ya Galeeva. "The emptying of channels and reservoirs accompanied by boiling." High Temperature 48, no. 3 (2010): 388–96. http://dx.doi.org/10.1134/s0018151x10030132.

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Dazzi, Susanna, Riccardo Verbeni, Paolo Mignosa, and Renato Vacondio. "Simulation of Flood-Control Reservoirs: Comparing Fully 2D and 0D–1D Models." Hydrology 11, no. 11 (2024): 180. http://dx.doi.org/10.3390/hydrology11110180.

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Flood-control reservoirs are often used as a structural measure to mitigate fluvial floods, and numerical models are a fundamental tool for assessing their effectiveness. This work aims to analyze the suitability of fully 2D shallow-water models to simulate these systems by adopting internal boundary conditions to describe hydraulic structures (i.e., dams) and by using a parallelized code to reduce the computational burden. The 2D results are also compared with the more established approach of coupling a 1D model for the river and a 0D model for the reservoir. Two test cases, including an in-s

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Mohafid, Said, Laila Stour, and Ali Agoumi. "Quantitative assessment of sedimentation in Moroccan dam reservoirs: analysis and projections." Multidisciplinary Science Journal 6, no. 7 (2024): 2024105. http://dx.doi.org/10.31893/multiscience.2024105.

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The siltation of dam reservoirs is the phenomenon that most embarrasses dam managers and water reservoir operators. In Morocco, this phenomenon affects all the watersheds to different degrees. Dam managers schedule bathymetric measurement companies to estimate the quantities of mud deposited in reservoirs. These companies are neither regular in time nor generalized on the 152 large dams of the Kingdom because of the high cost of the bathymetry operations. In our research work, the bathymetric data available for about a century were collected, checked, corrected, and sorted to be exploited.In t

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Mhiribidi, Delight, Joel Nobert, Webster Gumindoga, and Donald T. Rwasoka. "Optimal water resource allocation modelling in the Lowveld of Zimbabwe." Proceedings of the International Association of Hydrological Sciences 378 (May 29, 2018): 67–72. http://dx.doi.org/10.5194/piahs-378-67-2018.

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Abstract. The management and allocation of water from multi-reservoir systems is complex and thus requires dynamic modelling systems to achieve optimality. A multi-reservoir system in the Southern Lowveld of Zimbabwe is used for irrigation of sugarcane estates that produce sugar for both local and export consumption. The system is burdened with water allocation problems, made worse by decommissioning of dams. Thus the aim of this research was to develop an operating policy model for the Lowveld multi-reservoir system.The Mann Kendall Trend and Wilcoxon Signed-Rank tests were used to assess the

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Ari Wulandari, Dyah, Suseno Darsono, and Dwi Kurniani. "Optimization of Gunungrowo Reservoir operation." MATEC Web of Conferences 270 (2019): 04016. http://dx.doi.org/10.1051/matecconf/201927004016.

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Inaccurate water release has occurred from Gunungrowo Reservoir. In May–June, there is excess water release from Gunungrowo Reservoir while in the period from July to August there is a shortage of water release. Therefore the reservoir operation should be evaluated and updated in order to obtain optimal results and to adjust the changes. The purpose of this study was to evaluate the existing reservoir operation and to carry out an optimization to find the optimal reservoir operation. The objective is to conduct hydrological analysis, evaluate the reservoir operation, formulate a model of reser

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Al-Amoud, A. I., H. M. Hathoot, and F. S. Mohammad. "On the Estimation of the Time Required for Emptying Cylindrical Reservoirs Connected to Pipes." Journal of King Saud University - Engineering Sciences 9, no. 1 (1997): 129–43. http://dx.doi.org/10.1016/s1018-3639(18)30671-8.

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Menéndez, Javier, and Jorge Loredo. "Numerical modelling of water subsurface reservoirs during the operation phase in underground pumped storage hydropower plants." E3S Web of Conferences 152 (2020): 02001. http://dx.doi.org/10.1051/e3sconf/202015202001.

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Underground pumped storage hydropower (UPSH) plants may be an alternative to store subsurface energy with lower environmental impacts than conventional pumped storage hydropower (PSH) plants. Network of tunnels in closed mines (i.e. coal mines) could be used as water lower reservoir of UPSH plants. The amount of storable energy depends on the water mass and the net head between upper and lower reservoirs. Depending on the direction of the water flow rate, pumping or turbine modes may be used to produce or consume electrical energy. Filling and emptying processes during the operation stage in t

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Dumka, Rakesh, Pallabee Choudhury, V. K. Gahalaut, Kalpna Gahalaut, and Rajeev Kumar Yadav. "GPS Measurements of Deformation Caused by Seasonal Filling and Emptying Cycles of Four Hydroelectric Reservoirs in India." Bulletin of the Seismological Society of America 108, no. 5B (2018): 2955–66. http://dx.doi.org/10.1785/0120170355.

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12

Bakiev, Masharif, Shakhnoza Djabbarova, and Khojiakbar Khasanov. "Determination of the time of lowering depression surface in transition zones with a smooth and instantaneous decrease in water level in reservoir." E3S Web of Conferences 365 (2023): 03014. http://dx.doi.org/10.1051/e3sconf/202336503014.

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The Republic of Uzbekistan pays great attention to the development and implementation of a program for the development of hydropower based on ensuring the share of hydropower in the energy potential and the integrated development of hydropower potential. Over the last three years, hydropower plants have been built or reconstructed in more than a dozen small and medium-sized earth dams to accomplish this task. Typically, unstable filtration is observed in the body of earth dams because of deviations from the normal filling and emptying of water reservoirs. The main goal of the research is to de

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13

Whattam, Jack, Ivar Midtkandal, Dougal Jerram, Sara Callegaro, and Henrik Svensen. "episodic onset of explosive and silicic-dominated volcanism in a continental rift; insights from the Permian Oslo Rift, Norway." Volcanica 7, no. 2 (2024): 925–51. https://doi.org/10.30909/vol.07.02.925951.

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The nature of rifting episodes and their associated volcanism mark key stratigraphic events in the evolution of volcano-sedimentary basins. Following the final assemblage of Pangea, the European region was subject to rifting and magmatism during crustal re-equilibration throughout the Permian. The aborted, partially eroded Oslo Rift is an excellent archive of this Permian magmatism, but the late-stage volcanological evolution is poorly understood. We present the first detailed documentation of a succession covering this period, with mafic lavas and volcaniclastic (tuff breccia) deposits, trach

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Velychko, Svitlana, Olena Dupliak, and Tetiana Kurbanova. "SLOPE STABILITY ASSESSMENT OF THE UPSTREAM SLOPE OF THE DRY MOUNTAIN FLOOD CONTROL RESERVOIR DURING THE FLOOD." Problems of Water supply, Sewerage and Hydraulic, no. 37 (December 12, 2021): 4–12. http://dx.doi.org/10.32347/2524-0021.2021.37.4-12.

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The flood control is one of the priority goal for successful economic activity on the areas that are periodically suffer from floods. Such areas are the mountainous regions of the Ukrainian Carpathian Mountains. Floods on the mountain rivers are repeated several times each year, and are characterized by the sudden water level rise with almost the same rapid decrease of the water level. Active flood protection measures include dry mountain flood control reservoirs, the principle of which is to transform part of the flood runoff and to accumulate water for the short time in the the artificial re

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Burszta-Adamiak, Ewa, and Janusz Łomotowski. "Modelling of percolation rate of stormwater from underground infiltration systems." Water Science and Technology 68, no. 10 (2013): 2144–50. http://dx.doi.org/10.2166/wst.2013.467.

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Underground or surface stormwater storage tank systems that enable the infiltration of water into the ground are basic elements used in Sustainable Urban Drainage Systems (SUDS). So far, the design methods for such facilities have not taken into account the phenomenon of ground clogging during stormwater infiltration. Top layer sealing of the filter bed influences the infiltration rate of water into the ground. This study presents an original mathematical model describing changes in the infiltration rate variability in the phases of filling and emptying the storage and infiltration tank system

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Heppell, Jacques. "Intestinal Motility after Ileal Pouch-Anal Anastomosis." Canadian Journal of Gastroenterology 4, no. 7 (1990): 432–35. http://dx.doi.org/10.1155/1990/678614.

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Colectomy, mucosal proctectomy and ileal pouch-anal anastomosis, has become the procedure of choice for carefully selected patients with ulcerative colitis requiring surgery. Pathophysiological studies after the operation have led to a better understanding of the mechanisms of continence and to the development of new technology to study anorectal function. Manometric studies of the anal sphincter, ileal pouch and distal ileum have shown that the operation alters the mechanisms of continence. The maximal tolerable volume of distension of an ileal pouch often approximates that of a normal rectum

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Lindinger, Michael Ivan. "Oral electrolyte supplementation and prevention of dehydration in horses." UK-Vet Equine 8, no. 1 (2024): 45–50. http://dx.doi.org/10.12968/ukve.2024.8.1.45.

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Dehydration is common in equine disciplines and can be avoided by effective oral rehydration strategies. Thermoregulatory loss of heat in horses requires sweating which, in turn, can result in considerable loss of water and electrolytes. Maintenance of hydration and prevention of dehydration requires the continuous replacement of lost electrolytes and water. The stomach and small intestine can function as reservoirs to facilitate the uptake of water and electrolytes consumed 1–2 hours prior to competitions, training and transport. Ions and water are rapidly absorbed in the small intestine and

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18

Saad Omer, T. Z., S. E. Ahmed, and A. Karimi. "OPTIMAL OPERATION OF MULTIPURPOSE RESERVOIRS IN SERIES: ROSEIRES AND SENNAR CASE STUDY." Міжвідомчий тематичний науковий збірник "Меліорація і водне господарство", no. 2 (December 23, 2021): 5–23. http://dx.doi.org/10.31073/mivg202102-310.

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The Roseires-Sennar Dams System (RSDS) at lower part of Blue Nile River play a vital role in water supply to the irrigation schemes in Sudan. The existing rule curves for this system belong to 1925 and 1966 for Sennar and Roseires reservoirs, respectively. Introduction of new irrigation schemes, approved climate change impacts on Blue Nile River flow and upstream developments in Ethiopia as well as the heightening of the Roseires Dam from elevation 480 to 490 m.a.s.l have shown the RSDS is losing its efficiency in terms of fully supplying the water demands. The literature addresses the simulat

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19

Smith, Orla M. "Emptying the reservoir." Science 360, no. 6388 (2018): 503.4–503. http://dx.doi.org/10.1126/science.360.6388.503-d.

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20

Flølo, L. H., J. M. Kjærefjord, D. M. Arnesen, W. P. Menard, and K. W. Weissenburger. "Revealing the Petrophysical Properties of a Thin-Bedded Rock in a Norwegian Sea Reservoir With Logs, Core, and Miniperm Data." SPE Reservoir Evaluation & Engineering 3, no. 03 (2000): 249–55. http://dx.doi.org/10.2118/64273-pa.

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Summary An unconventional thin-bed analysis based on logs, core, and miniperm data was needed to calculate the petrophysical properties of a reservoir under development in the Norwegian Sea. More than half of the reservoir section under investigation is composed of heterolithic facies: thinly interbedded sandstone and mudstone layers from one to several centimeters in thickness and of variable quality. By using miniperm measurements with 1-cm spacing on slabbed core, it was possible to resolve the properties of the rock far below the vertical resolution of conventional wireline logs and relate

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Wu, Chia-Wen, Frederick N. F. Chou, and Fong-Zuo Lee. "Minimizing the impact of vacating instream storage of a multi-reservoir system: a trade-off study of water supply and empty flushing." Hydrology and Earth System Sciences 25, no. 4 (2021): 2063–87. http://dx.doi.org/10.5194/hess-25-2063-2021.

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Abstract. A reservoir operator does not favor storage above a certain level in situations such as the pre-release operation prior to a flood; scheduled engineering construction; or mechanical excavation of sediment in the impoundments, drawdown, and empty flushing, etc. This paper selects empty flushing as the case study, and a method is presented to promote the feasibility of emptying the reservoir storage. The impact of emptying reservoir on water supply is minimized through appropriate joint operation in a multi-reservoir system, where drawdown and empty flushing is carried out in a primary

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Kritsky, Delane, and Masato Nitta. "Dactylogyrids (Platyhelminthes: Monogenoidea) Infecting the Gill Lamellae of Flatheads (Scorpaeniformes: Platycephalidae), with Proposal of Platycephalotrema n. gen. and Descriptions of New Species from Australia and Japan." Diversity 11, no. 8 (2019): 132. http://dx.doi.org/10.3390/d11080132.

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Platycephalotrema n. gen. (Dactylogyridae) is proposed for four new species and 5 previously described species parasitizing the gills of flatheads (Scorpaeniformes: Platycephalidae) as follows: Platycephalotrema ogawai n. sp. (type species) from Platycephalus sp. 1 (type host) and Platycephalus sp. 2, both of Nakabo & Kai (2013) (locally known as “Yoshino-gochi” and “Ma-gochi,” respectively) (Japan); Platycephalotrema austrinum n. sp. from Platycephalus endrachtensis Quoy & Gaimard (type host) and Platycephalus sp. (Australia); Platycephalotrema bassensis (Hughes, 1928) n. comb. from P

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Saunders, Steve, Eric Tenor, Joseph Wakawa, and John Nohou. "Twenty-Two Years of GPS Monitoring at Rabaul Caldera, a Narrative History." Geosciences 13, no. 8 (2023): 249. http://dx.doi.org/10.3390/geosciences13080249.

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It has long been recognised that volcanoes deform as fluids migrate, or change pressure in fractures and reservoirs within the volcano or in the crust below and around them. Calderas in particular have been shown to deform in complex and often major ways. The Rabaul Caldera is a type example of a caldera that undergoes complex and occasionally rapid deformation. This was first recognised by visual observations, and by the 1970s these movements were being monitored by traditional surveying techniques. Between 1972 and 1994, the centre of the caldera was uplifted by approximately 2 m. Following

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Ikejder, Youssef, Majda Sebbani, Iliass Hendy, Mounia Khramz, Ali Khatouri, and Laila Bendriss. "Impact of Arterial Hypertension on Left Atrial Size and Function." BioMed Research International 2020 (September 15, 2020): 1–7. http://dx.doi.org/10.1155/2020/2587530.

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An increase in left atrial (LA) size in patients with arterial hypertension (AHT) has long been known to be associated with worse cardiovascular morbidity and mortality contributes to various complications, including atrial arrhythmias, stroke, and heart failure. The aim of our study was to evaluate the impact of arterial hypertension (AHT) on the LA size and function. This cross-sectional investigation included one hundred patients with essential hypertension without valvular or structural heart disease and atrial fibrillation. All recruits had a transthoracic echocardiography. LA volumes wer

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Dovhanenko, D. О., V. M. Yakovenko, V. V. Brygadyrenko, and O. O. Boyko. "Characteristic of the dried-up zone formed as a result of the breach of the Kahovka dam." Biosystems Diversity 32, no. 2 (2024): 285–95. http://dx.doi.org/10.15421/012431.

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The explosion at the Kahovka dam led to formation of new dried-up areas at the bottom of the Kahovka Reservoir, which have specific relief and mechanical composition of soil. Vegetation that has been forming in those dried-up areas for over one year now is already undergoing the first stages of succession and is characterized by high spatial non-uniformity. The study consisted of three main stages: analysis of dynamics of outflow from the reservoir and development of a scheme of hydrographic network at the site of the reservoir’s bed, analysis of soil cover, and analysis of formation of vegeta

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Yannur, Budi, Didit Suprihanto, Happy Nugroho, Aji Ery Burhandenny, and Restu Mukti Utomo. "Prototype System Water Level Reservoir untuk Pengendalian Kelebihan Air dengan Mikrokontroller Arduino Uno R3." Edumatic: Jurnal Pendidikan Informatika 5, no. 2 (2021): 352–61. http://dx.doi.org/10.29408/edumatic.v5i2.4233.

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PDAM Loa Kulu Branch still uses sticks or poles as an indicator of the water level in the reservoir. Reservoir is a place to store clean water production from PDAM, the weakness of using sticks or poles is when the operator does not monitor continuously causing air loss when production becomes large. The goal of the study was to design a water-level prototype to control excess water in the reservoir. The method used is a prototype with the stage of gathering information through interviewing PDAM staff, creating and repairing prototypes and testing prototypes. The test used hardware consisting

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Yannur, Budi, Didit Suprihanto, Happy Nugroho, Aji Ery Burhandenny, and Restu Mukti Utomo. "Prototype System Water Level Reservoir untuk Pengendalian Kelebihan Air dengan Mikrokontroller Arduino Uno R3." Edumatic: Jurnal Pendidikan Informatika 5, no. 2 (2021): 352–61. http://dx.doi.org/10.29408/edumatic.v5i2.4223.

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PDAM Loa Kulu Branch still uses sticks or poles as an indicator of the water level in the reservoir. Reservoir is a place to store clean water production from PDAM, the weakness of using sticks or poles is when the operator does not monitor continuously causing air loss when production becomes large. The goal of the study was to design a water-level prototype to control excess water in the reservoir. The method used is a prototype with the stage of gathering information through interviewing PDAM staff, creating and repairing prototypes and testing prototypes. The test used hardware consisting

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Steven, Steven, Priyendiswara Agustina Bella, I. G. Oka Sindhu Pribadi, and Liong Ju Tjung. "HUBUNGAN RESILIENSI DENGAN ADAPTASI MASYARAKAT TERHADAP BENCANA BANJIR DI TELUK GONG KECAMATAN PENJARINGAN JAKARTA UTARA." Jurnal Sains, Teknologi, Urban, Perancangan, Arsitektur (Stupa) 5, no. 2 (2023): 1827–36. http://dx.doi.org/10.24912/stupa.v5i2.24339.

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Teluk Gong has become an area that is often flooded every year, especially during the rainy season. The intensity of rain is high and accompanied by the inability of drainage channels and reservoirs that should be able to collect rainwater. Floods in Teluk Gong have occurred since 2007 and floods continue every year. Therefore, the author wants to do research on Teluk Gong. The author uses 2 methods, namely the analysis of the characteristics and impacts of flooding and the relationship between resilience and adaptation forms. The research approach that the author uses is a quantitative method

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Hameed, Hasan, Khaled Abdullah, and Raad Irzooki. "Slopes Stability Simulation of the Proposed Makhool Dam Against Earthquake Action." Iraqi Geological Journal 56, no. 2B (2023): 210–23. http://dx.doi.org/10.46717/igj.56.2b.16ms-2023-8-25.

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This study was designed to analyze the stability of the slopes of the proposed Makhool dam under the influence of the highest seismic acceleration experienced by the dam area since (1997-2022), which is 0.29g with a degree of 7.3ML, due to the earthquake that struck most of the cities of Iraq in 2017. Makhool Dam is a zoned earth dam that is proposed to be built on the Tigris River in north Iraq with length of 3670 m. The study was carried out using Geoslope programs, which used the finite element method. The stability of the dam slopes were analyzed under the influence of the earthquake for t

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Karadžić, Uroš, and Anton Bergant. "EXPERIMENTAL INVESTIGATIONS OF PIPELINE FILLING AND EMPTYING IN A SMALL-SCALE APPARATUS." Journal of Energy Technology 11, no. 2 (2024): 11–22. https://doi.org/10.18690/jet.11.2.11-22.2018.

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This paper serves as a reference for further investigations of pipeline filling and emptying in a relatively small-scale pipeline apparatus. The apparatus consists of an upstream end high-pressurized tank, horizontal steel pipeline, four valve units positioned along the pipeline including the end- points, and a downstream end tank. The filling of an initially empty pipeline is performed by a sudden opening of the valve positioned at the high-pressurized tank filled with water. The pipeline- emptying process is accomplished by high-pressurized air supplied from the air reservoir installed at th

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Civilini, F., M. K. Savage, and J. Townend. "Shear wave velocity changes induced by earthquakes and rainfall at the Rotokawa and Ngatamariki geothermal fields, Taupō Volcanic Zone, New Zealand." Geophysical Journal International 221, no. 1 (2019): 97–114. http://dx.doi.org/10.1093/gji/ggz547.

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SUMMARY Fluid injection for geothermal production has the potential to produce subsidence and microseismicity that can incur heavy financial cost or hazard. Due to this, novel ways to monitor subsurface deformation to supplement existing methods are highly sought after. We use seismic ambient noise to obtain time-dependent measurements of shear velocity within the geothermal reservoirs of Rotokawa and Ngatamariki, two producing geothermal fields in the Taupō Volcanic Zone located in the central North Island of New Zealand and operated by Mercury Energy. We investigate the relationship between

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Ravelli, Alberto M., Lewis Spitz, and Peter J. Milla. "Gastric Emptying in Children with Gastric Transposition." Journal of Pediatric Gastroenterology and Nutrition 19, no. 4 (1994): 403–9. http://dx.doi.org/10.1002/j.1536-4801.1994.tb11460.x.

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SummaryUsing the noninvasive technique of electrical impedance tomography (EIT), gastric emptying was studied in 12 children, aged 9 months to 17 years, who had undergone gastric transposition (six with pyloroplasty) for oesophageal replacement (seven oesophageal atresia, five severe caustic or peptic damage). In two patients, gastric antral electrical control activity was also studied using surface electrogastrography. Nine patients had problems on oral feeds (respiratory symptoms, feeding difficulties, vomiting, abdominal pain, symptoms suggesting dumping), whilst three were asymptomatic. Al

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Tyszczuk, Krzysztof, Grzegorz Domek, and Andrzej Kołodziej. "Problems of Removing Loos Biological Material from a Vacuum Accumulator." MATEC Web of Conferences 357 (2022): 02015. http://dx.doi.org/10.1051/matecconf/202235702015.

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Precise fragmentizer RPW17-TN he allows to the crumbling oily materials of biological (flax seeds, white mustard). The ambition of the product of crumbling from the reservoir is the indispensable element of the process. The introduction of pneumatic transportation changes the working arrangement and the fall of the efficiency of the process of crumbling causes, even to the zero –what joins with blocking fragmentizer. The discussion was undertaken in the article over the possible law suits and constructional solutions of the industrial use of emptying the hypotensive reservoir.

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Jamaluddin, Jamaluddin, Nuruddin Kafy El-Ridlo, Hamriani Ryka, and Maria Maria. "SIMULASI DISTRIBUSI TEKANAN INJEKSI PADA RESERVOIR MENGGUNAKAN METODE FINITE DIFFERENCE." JURNAL GEOCELEBES 4, no. 1 (2020): 1. http://dx.doi.org/10.20956/geocelebes.v4i1.7439.

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The modeling of reservoir injection pressure distribution is very important to perceive reservoir management, especially in estimating the pushing mechanism. The modeling of reservoir injection pressure distribution was carried out by applying the analytic equation of fluid flow to the porous media of Darcy's law and transformed to a finite difference numerical equation which then used Neumann boundary conditions. The parameters used in the modeling were: permeability, average layer thickness, porosity, acceleration of gravity, viscosity, and area’s width. Based on the results of modeling, the

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N, Karthikrao. "ASSESSMENT OF LEFT ATRIAL FUNCTION IN PATIENTS WITHMITRAL VALVE DISEASES." Asian Journal of Pharmaceutical and Clinical Research 9, no. 6 (2016): 334. http://dx.doi.org/10.22159/ajpcr.2016.v9i6.14677.

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ABSTRACTObjective:To observe and assess left atrial (LA) function by observing the differences in conventional Doppler echo parameters of left ventricular inflow, Left atrial appendage, among patients with mitral valve disease.Methods: Forty three mitral valve disease subjects appearing consecutively for echocardiogram (ECHO) test at the cardiology department in a tertiary care hospital were recruited into the study as per the pre-set inclusion and exclusion criteria. The data from the ECHO was pooled using Microsoft excel and analyzed using SPSS software by application of appropriate statisti

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Dhukia, Suman, Asem Rangita Chanu, Sambit Sagar, et al. "Normative Data of Liquid Gastric Emptying and Small-bowel Transit: A Prospective Cross-sectional Study." Indian Journal of Nuclear Medicine 39, no. 2 (2024): 98–105. http://dx.doi.org/10.4103/ijnm.ijnm_148_23.

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Abstract Purpose of the Study: The primary objective was to establish the reference values for liquid gastric emptying and small bowel. The secondary objectives encompassed comparing the anterior view and geometric mean methods, assessing gender differences, and exploring potential correlations with age. Materials and Methods: Thirty-five consecutive healthy participants (28 females and 7 males) with a mean age of 42 ± 11 years (median, 42; range, 23–65) underwent liquid gastric emptying scintigraphy at five intervals (0, 0.5, 1, 2, and 4 h), with optional additional imaging at 24 h. Liquid ga

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Williamson, M. E. R., J. C. Boyce, A. S. Miller, W. G. Lewis, D. Johnston, and A. H. Smith. "Measurement of pelvic ileal reservoir emptying after restorative proctocolectomy for ulcerative colitis." Nuclear Medicine Communications 16, no. 4 (1995): 232. http://dx.doi.org/10.1097/00006231-199504000-00083.

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Heppell, J., P. Belliveau, R. Taillefer, S. Dubé, and V. Derbekyan. "Quantitative assessment of pelvic ileal reservoir emptying with a semisolid radionuclide enema." Diseases of the Colon & Rectum 30, no. 2 (1987): 81–85. http://dx.doi.org/10.1007/bf02554934.

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Milanović, Saša, Ljiljana Vasić, Branislav Petrović, Tina Dašić, Veljko Marinović, and Petar Vojnović. "The Impact on Karst Aquifer Regimes Induced by a Surface Reservoir in Karst through Multiparametric Analyses (Reservoir Bileća—Herzegovina)." Sustainability 15, no. 15 (2023): 11968. http://dx.doi.org/10.3390/su151511968.

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The results of long-term groundwater monitoring in the Bileća reservoir adjacent (eastern Herzegovina, Bosnia and Herzegovina) indicate that there is a good hydraulic connection between the reservoir and the karst aquifer located in the right bank of the reservoir. In remote parts of the right-bank karst aquifer, due to complex lithostratigraphic characteristics and a tectonic structure, the influence of the reservoir is very variable and has been insufficiently studied up until now. This paper presents the analysis and synthesis of new, relevant hydrogeological data, as a basis for the creati

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Riesenkampff, Eugénie, Lena Mengelkamp, Matthias Mueller, et al. "Integrated analysis of atrioventricular interactions in tetralogy of Fallot." American Journal of Physiology-Heart and Circulatory Physiology 299, no. 2 (2010): H364—H371. http://dx.doi.org/10.1152/ajpheart.00264.2010.

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The atria play an important role in cardiac performance. We evaluated their function and the atrioventricular interaction in operated patients with tetralogy of Fallot (TOF). Twenty patients who had undergone surgical repair of TOF and seven controls were investigated. Patients had residual pulmonary but no major tricuspid valve insufficiency. Atrial and ventricular strain rates were obtained by echocardiographic speckle tracking. Cine MRI-derived volumetric analysis provided atrial and ventricular time volume and time volume change curves yielding emptying and filling parameters. In addition,

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Yu, Shou Bing, Kai Rong Wang, and Wan Zhan Wang. "Study on Dynamic Equilibrium of Sediment Transport by Qingshuigou Course of the Yellow River." Applied Mechanics and Materials 212-213 (October 2012): 351–57. http://dx.doi.org/10.4028/www.scientific.net/amm.212-213.351.

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The multi-object application of the Xiaolangdi Reservoir and water and sediment regulation have greatly changed flow and sediment conditions emptying into the Yellow River Estuary. By use of flow and sediment field data at the Lijin Hydrological Station and river cross-section elevation data during 2001~2010, the paper has analyzed characteristics of the Yellow River Estuary in terms of incoming flow and sediment conditions, main flume area, average river longitudinal section and river length. The results show that annual total water volume emptying into the Estuary since 2003 has maintained a

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Williamson, Michael E. R., Jeanetta C. Boyce, Andrew S. Miller, et al. "The effect of pelvic ileal reservoir volume and antiperistaltic reflux on emptying efficiency." Diseases of the Colon & Rectum 43, no. 10 (2000): 1368–74. http://dx.doi.org/10.1007/bf02236632.

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Zedan, Adnan Jayed, Marewan Ridha Faris, and Ali Kareem Bdaiwi. "Performance Assessment of Shirin Earth Dam in Iraq Under Various Operational Conditions." Tikrit Journal of Engineering Sciences 29, no. 2 (2022): 61–74. http://dx.doi.org/10.25130/tjes.29.2.8.

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Proper dam management should be ensured regularly to avoid breaches and failure. In this study, the finite element method was used to analyse the stability of the Shirin earthen dam under various conditions. The necessary laboratory tests for soils used in the construction of the dam were carried out in the laboratories of the College of the Engineering /University of Tikrit, and these data were employed in the GEO-STUDIO program to analyse the seepage and stability of the dam. The seepage was analysed at three levels of the water lake reservoir including the highest, middle and lowest water l

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Zherlov, G. K., C. P. Bashirov, I. V. Pankratov, and D. G. Chepezubov. "Surgery of «low» rectal cancer — prospects of modern oncoproctology." Bulletin of Siberian Medicine 3, no. 3 (2004): 80–86. http://dx.doi.org/10.20538/1682-0363-2004-3-80-86.

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Use of endoscopic ultrasonography in diagnostics of rectal low-ampullar malignant neoplasms has permitted to the authors to define the list of intersphincteric resection indications consisted in total mesorectumectomy and rectal and interior sphincter resection. The method of spheroidal reservoir formation with artificial unstriped muscular sphincter-cuff has been developed for the prophylaxis of anal incontinence and multimoment emptying after intersphincter resection with the colon bringing down. 14 patients have been operated with survey time up to 3,5 years. According to the data of clinic

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Laub, M., K. Hvid-Jacobsen, P. Hovind, I. L. Kanstrup, N. J. Christensen, and S. L. Nielsen. "Spleen emptying and venous hematocrit in humans during exercise." Journal of Applied Physiology 74, no. 3 (1993): 1024–26. http://dx.doi.org/10.1152/jappl.1993.74.3.1024.

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The spleen may release pooled erythrocytes to the general circulation during strenuous conditions such as heavy exercise. Most of our knowledge of this reservoir function of the spleen derives from animal studies, and the splenic contribution to the circulating blood volume in humans has been regarded as unimportant. We recorded the erythrocyte content in the human spleen during graded bicycle exercise to maximal working capacity. In five normal adults 99mTc-labeled autologous erythrocytes were injected intravenously, and the subjects were placed on bicycles with the back against a gamma camer

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Sareban, Mahdi, David Zügel, Paul Hartveg, et al. "Preserved Left Atrial Mechanics Following a 5-h Laboratory Triathlon in Euhydrated Athletes." International Journal of Sports Medicine 40, no. 02 (2019): 88–94. http://dx.doi.org/10.1055/a-0750-5780.

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AbstractThe purpose of this study was to investigate echocardiographic changes in left ventricular (LV) diastolic filling and left atrial (LA) strain mechanics following prolonged exercise. Ten male triathletes completed a 60-min swim, 180-min bike exercise, and a 60-min all-out run in a laboratory environment. Special attention was paid to prevent dehydration and energy deficit during the exercise protocol. All participants underwent comprehensive echocardiographic analyses of Doppler- and volumetric-derived LV diastolic filling indices and novel speckle-tracking echocardiography (STE)-derive

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Kertmen, Ömer, and Murat Akcay. "Evaluation of Left Atrial Electromechanical Delay and Left Atrial Phasic Functions in Patients Undergoing Treatment with Cardiotoxic Chemotherapeutic Agents." Medicina 60, no. 9 (2024): 1516. http://dx.doi.org/10.3390/medicina60091516.

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Background: The aim of this study is to evaluate atrial involvement by comparing pre- and post-chemotherapy left atrial mechanical and electromechanical parameters in patients treated with cardiotoxic chemotherapeutic agents. Methods: We designed our study as a prospective cohort study. Sixty-eight female patients between the ages of 18 and 50, scheduled for treatment with cardiotoxic chemotherapeutic agents, were included in our study. Atrial mechanical functions and electromechanical parameters were examined and compared with basic echocardiographic parameters before and after chemotherapy.

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Fedirko, Volodymyr O., Andrii G. Naboichenko, Mykola V. Iehorov, Albina I. Trеtiakova, and Oleksandra Y. Malysheva. "Treatment strategy for the tumor cyst of the medulla in an eloquent area: a case report and review of the literature." Ukrainian Neurosurgical Journal 27, no. 1 (2021): 51–56. http://dx.doi.org/10.25305/unj.215544.

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This is a clinical case of a 24-year-old woman with the unrescetable cystic tumor of the medulla because of eloquent area involved and severe neurological symptoms caused by the recurrent cystic component. The patient underwent emptying the cyst twice previously by means of safe entry zone myelotomy. Later there was a recurrence of the cyst with a significant neurological and oweral deterioration which is typical for such neoplasms. Recurrent cystic mass-effect was resolved with the help of newly designed device implanted. It provided simultaneous stable cisternal drainage and an opportunity f

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Berisha, Gëzim, Gani Bajraktari, Pranvera Ibrahimi, et al. "Impaired Left Atrial Reservoir Function in Metabolic Syndrome Predicts Symptoms in HFpEF Patients." International Cardiovascular Forum Journal 4 (December 4, 2015): 37. http://dx.doi.org/10.17987/icfj.v4i0.171.

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<p><strong>Background and Aim.</strong> The Metabolic Syndrome (MetS) has been shown to be independently associated with increased risk for incident heart failure (HF) and coronary artery disease. The aim of this study was to investigate the additional effect of MetS on LA dysfunction in a group of patients with HF and preserved ejection fraction (HFpEF) and its relationship with symptoms.</p><p><strong>Methods. </strong>This study included 194 consecutive patients (age 62 ± 9 years) with stable HFpEF. LV dimensions, ejection fraction (EF), mitral annu

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Ran, Hong, Matthias Schneider, Lin-lin Wan, Jun-yi Ren, Xiao-wu Ma, and Ping-yang Zhang. "Four-Dimensional Volume-Strain Expression in Asymptomatic Primary Hypertension Patients Presenting with Subclinical Left Atrium-Ventricle Dysfunction." Cardiology 145, no. 9 (2020): 578–88. http://dx.doi.org/10.1159/000508887.

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Objective: The purpose of this study was to evaluate the different components of left atrial (LA) dysfunction predictors in asymptomatic primary systemic hypertension patients with preserved left ventricular (LV) ejection fraction, particularly using LA 4-dimensional (4D) longitudinal and circumferential strain values. Methods and Results: Patients with no left ventricular hypertrophy (NLVH) and left ventricular hypertrophy (LVH) are all asymptomatic regarding primary blood hypertension. Thirty NLVH patients and 30 LVH patients according to LV mass index and 40 controls analyzed by 4D echocard

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