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Articles de revues sur le sujet « Recharge accumulateur »

Auteur : Grafiati

Publié le 4 mai 2024

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1

Zamora, Hector A., Christopher J. Eastoe, Jennifer C. McIntosh, and Karl W. Flessa. "Groundwater Origin and Dynamics on the Eastern Flank of the Colorado River Delta, Mexico." Hydrology 8, no. 2 (2021): 80. http://dx.doi.org/10.3390/hydrology8020080.

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Isotope data and major ion chemistry were used to identify aquifer recharge mechanisms and geochemical evolution of groundwaters along the US–Mexico border. Local recharge originates as precipitation and occurs during winter through preferential infiltration pathways along the base of the Gila Range. This groundwater is dominated by Na–Cl of meteoric origin and is highly concentrated due to the dissolution of soluble salts accumulated in the near-surface. The hydrochemical evolution of waters in the irrigated floodplain is controlled by Ca–Mg–Cl/Na–Cl-type Colorado River water. However, salini

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Sherif, Mohsen, Ahmed Sefelnasr, Muhammad Al Rashed, et al. "A Review of Managed Aquifer Recharge Potential in the Middle East and North Africa Region with Examples from the Kingdom of Saudi Arabia and the United Arab Emirates." Water 15, no. 4 (2023): 742. http://dx.doi.org/10.3390/w15040742.

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Groundwater extraction in most Middle East and North Africa (MENA) countries far exceeds its renewability, which ranges from 6% to 100%. Freshwater resources to support food production are very limited in this region. Future climate predictions include more consistent and longer wet periods with increasing surplus rainfall, which will enhance flood and flash flood occurrences in the MENA. Demand management of groundwater resources and managed aquifer recharge (MAR, also called groundwater replenishment, water banking, and artificial recharge, is the purposeful recharge of water to aquifers for

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Brkić, Željka, Mladen Kuhta, Tamara Hunjak, and Ozren Larva. "Regional Isotopic Signatures of Groundwater in Croatia." Water 12, no. 7 (2020): 1983. http://dx.doi.org/10.3390/w12071983.

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Tracer methods are useful for investigating groundwater travel times and recharge rates and analysing impacts on groundwater quality. The most frequently used tracers are stable isotopes and tritium. Stable isotopes of oxygen (δ18O) and hydrogen (δ2H) are mainly used as indicators of the recharge condition. Tritium (3H) is used to estimate an approximate mean groundwater age. This paper presents the results of an analysis of stable isotope data and tritium activity in Croatian groundwater samples that were collected between 1997 and 2014 at approximately 100 sites. The composition of the stabl

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Puida, V. "DEVICE FOR CONTROLLING PARAMETERS OF ACCUMULATOR BATTERIES AND THE CORRESPONDING DIRECT CURRENT NETWORK." Computer systems and network 5, no. 1 (2023): 89–95. http://dx.doi.org/10.23939/csn2023.01.089.

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Mobile devices for information, control and telemetry systems are powered by mobile generators through AC to DC converters, by batteries or, if possible, directly by solar panels. Solar panels typically work in a system that involves the usage of batteries to keep the systems running when the solar panels are not working or not providing enough power. The batteries can be recharged from the panels themselves if the solar panels have sufficient power or from an external direct current source. Also, for some mobile devices, power systems are used only with batteries, which are recharged from gen

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Nigate, Fenta, Marc Van Camp, Alemu Yenehun, Ashebir Sewale Belay, and Kristine Walraevens. "Recharge–Discharge Relations of Groundwater in Volcanic Terrain of Semi-Humid Tropical Highlands of Ethiopia: The Case of Infranz Springs, in the Upper Blue Nile." Water 12, no. 3 (2020): 853. http://dx.doi.org/10.3390/w12030853.

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The major springs in the Infranz catchment are a significant source of water for Bahir Dar City and nearby villages, while sustaining the Infranz River and the downstream wetlands. The aim of the research was to understand the hydrogeological conditions of these high-discharge springs and the recharge–discharge relations in the Infranz catchment. The Infranz catchment is covered by highly pervious and young quaternary volcanic rocks, consisting of blocky, fractured, and strongly vesicular scoriaceous basalt. At the surface, these rocks crop out as lineaments forming ridges, delimiting closed d

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Sefelnasr, Ahmed, Abdel Azim Ebraheem, Muhammad Abrar Faiz, et al. "Enhancement of Groundwater Recharge from Wadi Al Bih Dam, UAE." Water 14, no. 21 (2022): 3448. http://dx.doi.org/10.3390/w14213448.

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Groundwater and harvested rainwater represent the only conventional freshwater resources in the United Arab Emirates (UAE). Groundwater resources in Wadi Al Bih, UAE, are sustainable due to the low exploitation rate for domestic and agricultural purposes. Thus, the groundwater depletion in this area is far less than in other parts of the country. The Wadi Al Bih area is very important for achieving water security in UAE. Therefore, the possible measures of increasing groundwater recharge (e.g., managed aquifer recharge (MAR) methods) are investigated in this paper. The available water resource

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Bai, Tao, Wen-Ping Tsai, Yen-Ming Chiang, et al. "Modeling and Investigating the Mechanisms of Groundwater Level Variation in the Jhuoshui River Basin of Central Taiwan." Water 11, no. 8 (2019): 1554. http://dx.doi.org/10.3390/w11081554.

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Due to nonuniform rainfall distribution in Taiwan, groundwater is an important water source in certain areas that lack water storage facilities during periods of drought. Therefore, groundwater recharge is an important issue for sustainable water resources management. The mountainous areas and the alluvial fan areas of the Jhuoshui River basin in Central Taiwan are considered abundant groundwater recharge regions. This study aims to investigate the interactive mechanisms between surface water and groundwater through statistical techniques and estimate groundwater level variations by a combinat

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Legchenko, A., C. Vincent, J. M. Baltassat, et al. "Monitoring water accumulation in a glacier using magnetic resonance imaging." Cryosphere Discussions 7, no. 3 (2013): 2119–51. http://dx.doi.org/10.5194/tcd-7-2119-2013.

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Abstract. Tête Rousse is a small polythermal glacier located in the Mont Blanc area (French Alps) at an altitude of 3100 to 3300 m. Recent accumulation of melt water in the glacier was assumed to occur, but such accumulation had yet to be confirmed. Using Surface Nuclear Magnetic Resonance imaging (3-D-SNMR), we showed that the temperate part of the Tête Rousse glacier contains two separate water-filled caverns (central and upper caverns). In 2009, the central cavern contained about 55 000 m3 of water. Since 2010, the cavern is drained every year. Using 3-D-SNMR, we monitored the changes cause

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Maliva, Robert G. "Groundwater banking: opportunities and management challenges." Water Policy 16, no. 1 (2013): 144–56. http://dx.doi.org/10.2166/wp.2013.025.

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Groundwater banking is the use of aquifers to store water to balance seasonal or longer-term variations in supply and demand. The large storage capacity provided by aquifers can be a valuable tool for conjunctive use of surface water and groundwater as well as other elements of integrated water resources management. Successful groundwater banking requires favorable hydrogeological conditions to efficiently recharge, store, and abstract large volumes of water. Additionally, groundwater banking is also highly dependent upon water management and operational policies to ensure that stored water is

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Reinecke, Robert, Hannes Müller Schmied, Tim Trautmann, et al. "Uncertainty of simulated groundwater recharge at different global warming levels: a global-scale multi-model ensemble study." Hydrology and Earth System Sciences 25, no. 2 (2021): 787–810. http://dx.doi.org/10.5194/hess-25-787-2021.

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Abstract. Billions of people rely on groundwater as being an accessible source of drinking water and for irrigation, especially in times of drought. Its importance will likely increase with a changing climate. It is still unclear, however, how climate change will impact groundwater systems globally and, thus, the availability of this vital resource. Groundwater recharge is an important indicator for groundwater availability, but it is a water flux that is difficult to estimate as uncertainties in the water balance accumulate, leading to possibly large errors in particular in dry regions. This

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Dawes, W., R. Ali, S. Varma, I. Emelyanova, G. Hodgson, and D. McFarlane. "Modelling the effects of climate and land cover change on groundwater recharge in south-west Western Australia." Hydrology and Earth System Sciences Discussions 9, no. 5 (2012): 6063–99. http://dx.doi.org/10.5194/hessd-9-6063-2012.

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Abstract. The groundwater resource contained within the sandy aquifers of the Swan Coastal Plain, south west Western Australia, provides approximately 60% of the drinking water for the metropolitan population of Perth. Rainfall decline over the past three decades coupled with increasing water demand from a growing population has resulted in falling dam storage and groundwater levels. Projected future changes in climate across south-west Western Australia consistently show a decline in annual rainfall of between 5 and 15%. There is expected to be a continuing reduction of diffuse recharge acros

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Legchenko, A., C. Vincent, J. M. Baltassat, et al. "Monitoring water accumulation in a glacier using magnetic resonance imaging." Cryosphere 8, no. 1 (2014): 155–66. http://dx.doi.org/10.5194/tc-8-155-2014.

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Abstract. Tête Rousse is a small polythermal glacier located in the Mont Blanc area (French Alps) at an altitude of 3100 to 3300 m. In 1892, an outburst flood from this glacier released about 200 000 m3 of water mixed with ice, causing much damage. A new accumulation of melt water in the glacier was not excluded. The uncertainty related to such glacier conditions initiated an extensive geophysical study for evaluating the hazard. Using three-dimensional surface nuclear magnetic resonance imaging (3-D-SNMR), we showed that the temperate part of the Tête Rousse glacier contains two separate wate

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Bogena, H., R. Kunkel, C. Montzka, and F. Wendland. "Uncertainties in the simulation of groundwater recharge at different scales." Advances in Geosciences 5 (December 16, 2005): 25–30. http://dx.doi.org/10.5194/adgeo-5-25-2005.

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Abstract. Digital spatial data always imply some kind of uncertainty. The source of this uncertainty can be found in their compilation as well as the conceptual design that causes a more or less exact abstraction of the real world, depending on the scale under consideration. Within the framework of hydrological modelling, in which numerous data sets from diverse sources of uneven quality are combined, the various uncertainties are accumulated. In this study, the GROWA model is taken as an example to examine the effects of different types of uncertainties on the calculated groundwater recharge.

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Meagher, RC, AJ Salvado, and DG Wright. "An analysis of the multilineage production of human hematopoietic progenitors in long-term bone marrow culture: evidence that reactive oxygen intermediates derived from mature phagocytic cells have a role in limiting progenitor cell self-renewal." Blood 72, no. 1 (1988): 273–81. http://dx.doi.org/10.1182/blood.v72.1.273.273.

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Abstract To better understand the limited hematopoietic life span of human marrow “Dexter” cultures, we developed a miniaturized, two-stage culture system with which in vitro production of hematopoietic progenitors could be reproducibly detected and quantified. Light- density, gradient-separated human marrow cells were inoculated into Leighton slide tubes, and adherent (“stromal”) cell layers were allowed to develop on the removable coverslips within these tubes during an initial 4 weeks of culture. Once stromal cell layers were established, cultures were irradiated (800 cGy) to eliminate all

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Meagher, RC, AJ Salvado, and DG Wright. "An analysis of the multilineage production of human hematopoietic progenitors in long-term bone marrow culture: evidence that reactive oxygen intermediates derived from mature phagocytic cells have a role in limiting progenitor cell self-renewal." Blood 72, no. 1 (1988): 273–81. http://dx.doi.org/10.1182/blood.v72.1.273.bloodjournal721273.

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To better understand the limited hematopoietic life span of human marrow “Dexter” cultures, we developed a miniaturized, two-stage culture system with which in vitro production of hematopoietic progenitors could be reproducibly detected and quantified. Light- density, gradient-separated human marrow cells were inoculated into Leighton slide tubes, and adherent (“stromal”) cell layers were allowed to develop on the removable coverslips within these tubes during an initial 4 weeks of culture. Once stromal cell layers were established, cultures were irradiated (800 cGy) to eliminate all residual

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A. H. Ramírez, O. Talavera, S. Souto, J. I. Golzarri, and G. Espinosa. "Analysis of the Radon-222 Concentration and Physical-chemical Quality, in Drinking Water of Taxco, Guerrero." Journal of Nuclear Physics, Material Sciences, Radiation and Applications 7, no. 2 (2020): 203–7. http://dx.doi.org/10.15415/jnp.2020.72026.

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In this work the determination of radon gas (222Rn) and the characterization of chemical elements in drinking water of the city Taxco was carried out. Ingesting or inhaling a small number of radionuclides, as well as water of poor chemical quality, can become a potential public health problem. We are collecting 8 samples of water from a spring, physicochemical parameters were measured in field on different days of the dry season. Measurements of 222Rn were performed in the laboratory with an AlphaGUARD equipment. The chemical quality was analyzed in laboratory too by means of mayor and minor i

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Del Toro-Guerrero, Francisco, Enrique Vivoni, Thomas Kretzschmar, Stephen Bullock Runquist, and Rogelio Vázquez-González. "Variations in Soil Water Content, Infiltration and Potential Recharge at Three Sites in a Mediterranean Mountainous Region of Baja California, Mexico." Water 10, no. 12 (2018): 1844. http://dx.doi.org/10.3390/w10121844.

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In this research, we examined temporal variations in soil water content (θ), infiltration patterns, and potential recharge at three sites with different mountain block positions in a semiarid Mediterranean climate in Baja California, Mexico: two located on opposing aspects (south- (SFS) and north-facing slopes (NFS)) and one located in a flat valley. At each site, we measured daily θ between 0.1 and 1 m depths from May 2014 to September 2016 in four hydrological seasons: wet season (winter), dry season (summer) and two transition seasons. The temporal evolution of θ and soil water storage (SWS

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KUMAR, SATYENDRA, R. RAJU, PARVENDER SHEORAN, et al. "Techno-economic evaluation of recharge structure as localized drainage option for sustainable crop production in sodic agro-ecosystems." Indian Journal of Agricultural Sciences 90, no. 1 (2020): 212–19. http://dx.doi.org/10.56093/ijas.v90i1.98683.

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The low infiltration capacity of sodic soils and alkaline irrigation water are the main limiting factors in sustaining crop production under salt affected agro-ecosystems. The extreme rains aggravate the chances of crop failure further, due to water stagnation for prolonged period under sodic lands. Frequency of such extreme rainfall events is likely to increase in near future due to changing climatic scenario. ICAR-Central Soil Salinity Research Institute, Karnal, designed, developed and installed the cavity type individual farmers' based recharge structure at four locations in low lying area

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MEENA, S. C., K. K. SHARMA, H. SWAMI, B. S. RANA, LEKHA LEKHA, and V. D. LOHOT. "Survey record of lac insect Kerria lacca and its host plants in western plains of India." Indian Journal of Agricultural Sciences 90, no. 1 (2020): 220–25. http://dx.doi.org/10.56093/ijas.v90i1.98684.

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The low infiltration capacity of sodic soils and alkaline irrigation water are the main limiting factors in sustaining crop production under salt affected agro-ecosystems. The extreme rains aggravate the chances of crop failure further, due to water stagnation for prolonged period under sodic lands. Frequency of such extreme rainfall events is likely to increase in near future due to changing climatic scenario. ICAR-Central Soil Salinity Research Institute, Karnal, designed, developed and installed the cavity type individual farmer’s based recharge structure at four locations in low lying area

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Narantsogt, Nasanbayar, and Ulf Mohrlok. "Evaluation of MAR Methods for Semi-Arid, Cold Regions." Water 11, no. 12 (2019): 2548. http://dx.doi.org/10.3390/w11122548.

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Mongolia is a semi-arid, highly continental region with highly variable precipitation and river discharge. The groundwater aquifer located near Ulaanbaatar, the capital city of Mongolia, is the only one source for city water supply consumption, and it is important to ensure that groundwater is available now and in the future. The main watercourse near the capital city is the Tuul River, fed by precipitation in the Khentii Mountains. The semi-arid and cold environment shows high variability in precipitation and river discharge. However, due to absence of precipitation in winter and spring, the

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Kuipers, P. J., M. C. Ryan, and B. J. Zebarth. "Estimating nitrate loading from an intensively managed agricultural field to a shallow unconfined aquifer." Water Quality Research Journal 49, no. 1 (2013): 10–22. http://dx.doi.org/10.2166/wqrjc.2013.136.

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Nitrate loading from an intensively managed commercial red raspberry field to groundwater in the Abbotsford-Sumas Aquifer, British Columbia was estimated over a 1 yr period and compared with the nitrogen surplus calculated using a simple nitrogen budget. Nitrate loading was estimated as the product of recharge (estimated from climate data as total precipitation minus potential evapotranspiration (PET)) and monthly nitrate concentration measured at the water table. Most nitrate loading occurred when nitrate, accumulated in the root zone over the growing season, was leached following heavy autum

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Pinti, Daniele Luigi, Marie Larocque, Pauline Méjean, et al. "Regional-Scale Distribution of Helium Isotopes in Aquifers: How Informative Are They as Groundwater Tracers and Chronometers?" Water 14, no. 12 (2022): 1940. http://dx.doi.org/10.3390/w14121940.

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This study presents an almost entirely unpublished dataset of 121 samples of groundwater analyzed for helium concentration and its isotopic ratio (3He/4He) in two adjacent watersheds of the St. Lawrence Lowlands, in a region with intensive agricultural activities in the southern Québec Province, Eastern Canada. Most of the samples were collected in the regional bedrock fractured aquifer hosted in mid-Ordovician siliciclastic shales, on a total surface of 7500 km2. Even with this low-density sampling, and in a heterogeneous and fractured aquifer, the helium isotopes bring precious information o

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Villarreal, Carlos J., Richard E. Zartman, Wayne H. Hudnall, Dennis Gitz, Ken Rainwater, and Loren M. Smith. "Spatial Distribution and Morphology of Sediments in Texas Southern High Plains Playa Wetlands." Texas Water Journal 3, no. 1 (2012): 1–13. http://dx.doi.org/10.21423/twj.v3i1.2070.

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Playas are depressional geomorphic features on the U.S. High Plains. About 20,000 Southern High Plains playa wetlandsserve as runoff catchment basins, which are thought to be focal points of Ogallala aquifer recharge. Sediments in playas can alter biodiversity services, impede aquifer recharge, and increase evaporative water losses. The purpose of this study was to evaluate the effects of watershed cultivation systems on post-cultural sediment deposition in 3 pairs of cropland/native grassland playas in Briscoe, Floyd, and Swisher counties of Texas. A hydraulic probe was used to collect soil c

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Hailekiros, Kahsay, Tesfamichael Gebreyohannes, Abdelwassie Hussein, and Hagos Brhane. "Water Balance Components Estimation using WetSpass Model: A Case study of Mekelle Area, Tigray, Ethiopia." Physical Science International Journal 27, no. 3 (2023): 27–37. http://dx.doi.org/10.9734/psij/2023/v27i3793.

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This research was aimed at estimating the spatially distributed Water balance components of the catchments in Mekelle area by using WetSpass hydrological model and verifying the model outputs with ground truth. Long term mean metrological data and physical characteristics of the catchments were used as an input to the model. The input data were manipulated using Arc- GIS tools. Results of this model depicted that about 73.13% and 19.96% of the precipitation in the study area was lost through evapotranspiration and surface runoff respectively. However, 7% of it replenished the groundwater. The

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Moon, Jihyun, Hoseung Lee, and Hoonyol Lee. "Elevation Change of CookE2 Subglacial Lake in East Antarctica Observed by DInSAR and Time-Segmented PSInSAR." Remote Sensing 14, no. 18 (2022): 4616. http://dx.doi.org/10.3390/rs14184616.

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In this study, elevation change and surface morphology of CookE2, one of the most active subglacial lakes in East Antarctica, were analyzed by using Differential Interferometric Synthetic Aperture Radar (DInSAR) and a newly adapted Time-Segmented Persistent Scatterer Interferometric Synthetic Aperture Radar (TS-PSInSAR) techniques. Firstly, several DInSAR pairs were used to study the surface morphology of the subglacial lake during the rapid discharge event in 2007 and the subsequent recharge in 2010 by using ALOS PALSAR data and the continuous recharge from 2018 to 2020 by using Sentinel-1 SA

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McCartney, Victoria A., Ewen Silvester, John W. Morgan, and Phillip J. Suter. "Physical and chemical drivers of vegetation in groundwater-source pools on the Bogong High Plains, Victoria." Australian Journal of Botany 61, no. 7 (2013): 566. http://dx.doi.org/10.1071/bt13217.

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The wetland communities intimately associated with groundwater sources in the Australian alps are poorly documented compared with the broader (and more obvious) alpine peatlands. In the present work, we report on the vegetation observed immediately around such sources and the characteristics of the supplying groundwater so as to understand the likely factors controlling the observed vegetation assemblage. Thirty-two groundwater sources were identified across three catchments on the Bogong High Plains, Victoria (Australia), and the vegetation associated with these sources surveyed. Groundwater

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Liu, Wen, Liankai Zhang, Pengyu Liu, Xiaoqun Qin, Xiaojing Shan, and Xin Yao. "FDOM Conversion in Karst Watersheds Expressed by Three-Dimensional Fluorescence Spectroscopy." Water 10, no. 10 (2018): 1427. http://dx.doi.org/10.3390/w10101427.

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A karst system, formed by the dissolution of carbonate rocks, is usually susceptible to contamination. Little is known about the composition of natural dissolved organic matter (DOM) in groundwater systems, especially in karstic groundwater. To reveal the characteristics of DOM in a karst aquifer, the Yufuhe River Basin, a typical karst watershed in northern China, was selected. DOM fluorescence (FDOM) was measured with the excitation-emission matrices (EEMs) spectroscopy technique. Parallel factor analysis (PARAFAC) was used to analyze the karst hydrogeological factors that affect FDOM biogeo

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Sanford, P., X. Wang, K. D. Greathead, J. H. Gladman, and J. Speijers. "Impact of Tasmanian blue gum belts and kikuyu-based pasture on sheep production and groundwater recharge in south-western Western Australia." Australian Journal of Experimental Agriculture 43, no. 8 (2003): 755. http://dx.doi.org/10.1071/ea02226.

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The effect of Tasmanian blue gum (Eucalyptus globulus) belts and kikuyu (Pennisetum clandestinum) grass on livestock production and groundwater recharge was studied in the high rainfall zone (>600 mm/year) of south-western Western Australia from 1998 to 2001. The objective was to identify optimum combinations of tree belts and pasture for sustainable livestock production and the prevention of secondary salinisation. Treatments were annual pasture, in competition with trees at different orientations (east, west and south), kikuyu pasture in competition with trees at one orientation (west), c

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Mazzilli, Naomi, Konstantinos Chalikakis, Simon D. Carrière, and Anatoly Legchenko. "Surface Nuclear Magnetic Resonance Monitoring Reveals Karst Unsaturated Zone Recharge Dynamics during a Rain Event." Water 12, no. 11 (2020): 3183. http://dx.doi.org/10.3390/w12113183.

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Understanding karst unsaturated zone (UZ) recharge dynamics is crucial for achieving sustainable management of karst hydrosystems. In this paper, we provide the first report of the application of surface nuclear magnetic resonance (SNMR) monitoring of a karst UZ during a typical Mediterranean rain event. This 79 days’ SNMR monitoring is a part of a more than 2 years of SNMR monitoring at the Low Noise Underground Laboratory (LSBB) experimental site located within the Fontaine de Vaucluse karst hydrosystem (southeastern France). We present eight SNMR soundings conducted before and after the rai

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Liang, Xiaoyan, Liqiang Zhao, Zhenmin Niu, Xingbin Xu, Nan Meng, and Nai’ang Wang. "Warm Island Effect in the Badain Jaran Desert Lake Group Region Inferred from the Accumulated Temperature." Atmosphere 11, no. 2 (2020): 153. http://dx.doi.org/10.3390/atmos11020153.

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The Badain Jaran Desert (BJD) is characterized by the coexistence of over 110 perennial lakes and thousands of megadunes in its southeast part. Unlike the cold island effect, we found a special phenomenon of the warm island effect in the lake group region of the BJD. However, the concept and formation mechanism remains unclear. In this study, based on observations of land surface processes in the area, we first used the daily mean temperature from 23 automated meteorological stations from 2010 to 2017 to calculate the mean daily temperature (T) ≥ 0 °C, T ≥ 10 °C accumulated temperature and neg

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Putri, Tsamaroh Nidaa, and Priyo Sasmoko. "ALAT PEMANTAU PENGOSONGAN AKUMULATOR 12V/ 5Ah BERBASIS ARDUIONO UNO." Gema Teknologi 18, no. 4 (2016): 10. http://dx.doi.org/10.14710/gt.v18i4.21910.

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Tsamaroh Nidaa Putri, Priyo Sasmoko explains that accumulator is a combination of several pieces of cells used for altering the chemical energy into electricity energy used in motor vehicles. Accumulators are used continuously will shrink and drop so it needs to be recharged. To know the state of the battery voltage drop experienced the need for a measurement to determine the ability of the accumulator. Design manufacture accumulator discharge monitoring tool consists of a voltage divider circuit to know the big accumulator voltage in percentage form. Used also an ACS712 current sensor to dete

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Bristow, Charlie S., Lucy Buck, and Maria Inggrid. "Four-Dimensional Investigation of Gravel Beach Ridge Accretion and 50 Years of Beach Recharge at Dungeness, UK, Using Historic Images, GPR and Lidar (HIGL)." Applied Sciences 11, no. 21 (2021): 10219. http://dx.doi.org/10.3390/app112110219.

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Dungeness is a cuspate foreland on the south coast of England that is the largest shingle feature in Europe and includes hundreds of beach ridges. It is also the location of two nuclear power stations that were constructed in the 1960s. The dominant southwest waves cause longshore drift from west to east, eroding the southwest side of Dungeness, accompanied by accretion on the east side. A record of this eastward movement and sediment accretion is preserved by the shingle beach ridges. The power stations are located on the eroding southwestern side of the ness, and a system of beach recharge h

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Pastor, F., J. A. Valiente, and M. J. Estrela. "Sea surface temperature and torrential rains in the Valencia region: modelling the role of recharge areas." Natural Hazards and Earth System Sciences Discussions 3, no. 2 (2015): 1357–96. http://dx.doi.org/10.5194/nhessd-3-1357-2015.

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Abstract. Heavy rain events are frequently recorded in the Western Mediterranean causing economic losses and even human casualties. The Western Mediterranean is a deep and almost closed sea surrounded by high mountain ranges and with little exchange of water with the Atlantic ocean. A main factor in the development of torrential rains are ocean-atmosphere exchanges of heat and moisture that can potentially destabilize air masses travelling over the sea. The study of air mass trajectories previous to the rain event permits the identification of sea areas that could probably contribute to the de

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Knight, A., K. Blott, M. Portelli, and C. Hignett. "Use of tree and shrub belts to control leakage in three dryland cropping environments." Australian Journal of Agricultural Research 53, no. 5 (2002): 571. http://dx.doi.org/10.1071/ar01089.

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The water extraction of deep-rooted perennial trees and shrub belts integrated with annual cropping/grazing systems was studied at 3 sites in the 300–450 mm rainfall zone of the Murray–Darling Basin of south-eastern Australia. Within 4 years of planting alley farming systems on cropland, the soil directly below and near the belts had dried the deep profile. Between 82 and 261 mm of extra soil water storage capacity was created in the 2.5 to 5.5–6 m profile. At Palamana (the only site monitored to greater depth), living roots were found 16 m below the surface. The cumulative water content of th

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Wang, Changshu, Jingwei Wu, Wenzhi Zeng, Yan Zhu, and Jiesheng Huang. "Five-Year Experimental Study on Effectiveness and Sustainability of a Dry Drainage System for Controlling Soil Salinity." Water 11, no. 1 (2019): 111. http://dx.doi.org/10.3390/w11010111.

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The dry drainage system (DDS) is an alternative technique for controlling salinization. To quantify its role in soil salinity control, a five-year field observation from 2007 to 2011 was completed in a 2900 ha experimental plot in Yonglian Experimental Station, Hetao Irrigation District, China. Results showed that the groundwater table depth in the fallow areas quickly responded to the lateral recharge from the surrounding croplands during irrigation events. The groundwater electrical conductivity (GEC) of fallow areas increased from 5 mS·cm−1 to 15 mS·cm−1, whereas the GEC below croplands pro

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Pastor, F., J. A. Valiente, and M. J. Estrela. "Sea surface temperature and torrential rains in the Valencia region: modelling the role of recharge areas." Natural Hazards and Earth System Sciences 15, no. 7 (2015): 1677–93. http://dx.doi.org/10.5194/nhess-15-1677-2015.

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Abstract. Heavy rain events are frequently recorded in the Western Mediterranean causing economic losses and even human casualties. The Western Mediterranean is a deep and almost closed sea surrounded by high mountain ranges and with little exchange of water with the Atlantic ocean. A main factor in the development of torrential rains is ocean-atmosphere exchanges of heat and moisture that can potentially destabilize air masses travelling over the sea. The study of air mass trajectories previous to the rain event permits the identification of sea areas that could probably contribute to the dev

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Patekar, Matko, Mihaela Bašić, Marco Pola, et al. "Multidisciplinary investigations of a karst reservoir for managed aquifer recharge applications on the island of Vis (Croatia)." Acque Sotterranee - Italian Journal of Groundwater 11, no. 1 (2022): 37–48. http://dx.doi.org/10.7343/as-2022-557.

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Managed aquifer recharge (MAR) refers to a suite of methods by which excess surface water or non-conventional water is stored underground for subsequent recovery or environmental purposes. MAR solutions have been largely used in unconsolidated aquifers, while their application in karst aquifers is rare. This research presents the first results of a MAR viability study on the island of Vis, a small karstic island in the Adriatic Sea. Favorable geological and hydrogeological conditions enable the formation of karst aquifers, making the island autonomous in terms of water supply. The island’s mai

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Masters, D., N. Edwards, M. Sillence, et al. "The role of livestock in the management of dryland salinity." Australian Journal of Experimental Agriculture 46, no. 7 (2006): 733. http://dx.doi.org/10.1071/ea06017.

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Management of dryland salinity in Australia will require changes in the design and utilisation of plant systems in agriculture. These changes will provide new opportunities for livestock agriculture. In areas already affected by salt, a range of plants can be grown from high feeding value legumes with moderate salt tolerance through to highly salt tolerant shrubs. A hectare of these plants may support between 500 and 2000 sheep grazing days per year. The type of plants that can be grown and the subsequent animal production potential depend on a range of factors that contribute to the ‘salinity

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Hung, Chih-Ying, Jian-Hong Yu, Liang-Wei Su, Jun-Yen Uan, Yin-Chia Chen, and Dan-Jae Lin. "Shear Bonding Strength and Thermal Cycling Effect of Fluoride Releasable/Rechargeable Orthodontic Adhesive Resins Containing LiAl-F Layered Double Hydroxide (LDH) Filler." Materials 12, no. 19 (2019): 3204. http://dx.doi.org/10.3390/ma12193204.

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This study aims to investigate the shear bonding strength (SBS) and thermal cycling effect of orthodontic brackets bonded with fluoride release/rechargeable LiAl-F layered double hydroxide (LDH-F) contained dental orthodontic resin. 3% and 5% of LDH-F nanopowder were gently mixed to commercial resin-based adhesives Orthomite LC (LC, LC3, LC5) and Transbond XT (XT, XT3). A fluoroaluminosilicate modified resin adhesive Transbond color change (TC) was selected as a positive control. Fifteen brackets each group were bonded to bovine enamel and the SBS was tested with/without thermal cycling. The a

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Zevgolis, Ioannis E., Alexandros I. Theocharis, Alexandros V. Deliveris, and Nikolaos C. Koukouzas. "Numerical Analysis of Groundwater Effects on the Stability of an Abandoned Shallow Underground Coal Mine." Sustainability 15, no. 1 (2022): 529. http://dx.doi.org/10.3390/su15010529.

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This work systematically quantifies groundwater’s effect on the roof stability of underground openings in shallow coal mines and indirectly assesses the potential for sinkhole formation. A specific stratigraphy was analyzed where the opening instability can lead to sinkhole formation, given the geological conditions, the overburden stratigraphy, and the depth of the openings. The groundwater recharge was investigated as an individual rainfall infiltration (short-term) and as groundwater dynamics (long-term), representing the accumulation of infiltrated rainwater with time. In the latter case,

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Wendt, Kathleen A., Mathieu Pythoud, Gina E. Moseley, Yuri V. Dublyansky, R. Lawrence Edwards, and Christoph Spötl. "Paleohydrology of southwest Nevada (USA) based on groundwater 234U/238U over the past 475 k.y." GSA Bulletin 132, no. 3-4 (2019): 793–802. http://dx.doi.org/10.1130/b35168.1.

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Abstract Subaqueous calcite deposited on the walls of Devils Hole 2 cave (Nevada, USA) represents a unique archive for geochemical variations within the regional aquifer. Here, we present a 475,000-year record of initial 234U/238U activity ratios in delta notation (δ234U0). Results show a range in values from 1851–1616‰. Variations in δ234U0 coincide with interglacial-glacial cycles over the past 475,000 years. Maximum δ234U0 values correspond to the last five glacial intervals, during which southwest Nevada experienced cool, pluvial conditions. Minimum δ234U0 values correspond to interglacial

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Nicholson, Barbara J. "Peat chemistry of a continental mire complex in western Canada." Canadian Journal of Botany 67, no. 3 (1989): 763–75. http://dx.doi.org/10.1139/b89-103.

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A continental peatland complex in western Canada containing varied vegetational landforms was studied to relate surface physiognomy to peatland development. Peat chemistry was used to determine the influence of water chemistry on landform formation and to assess the development of ombrotrophy on forested Sphagnum islands. Surface water chemistry at the site showed the following: pH 3.7–6.3; calcium content 0.9–15.6 mg/L; magnesium content 0.5–2.8 mg/L; and reduced conductivity 0–232 μS/cm. Peat cores were subdivided into two peat types, fen and forested Sphagnum islands. Spearman rank correlat

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Sadeghi, Morteza, Ardeshir Ebtehaj, Wade T. Crow, et al. "Global Estimates of Land Surface Water Fluxes from SMOS and SMAP Satellite Soil Moisture Data." Journal of Hydrometeorology 21, no. 2 (2020): 241–53. http://dx.doi.org/10.1175/jhm-d-19-0150.1.

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AbstractIn-depth knowledge about the global patterns and dynamics of land surface net water flux (NWF) is essential for quantification of depletion and recharge of groundwater resources. Net water flux cannot be directly measured, and its estimates as a residual of individual surface flux components often suffer from mass conservation errors due to accumulated systematic biases of individual fluxes. Here, for the first time, we provide direct estimates of global NWF based on near-surface satellite soil moisture retrievals from the Soil Moisture Ocean Salinity (SMOS) and Soil Moisture Active Pa

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Grigoryev, A. V., A. Yu Vasil’Yev, and S. M. Malyshev. "CALCULATION OF SHORT-CIRCUIT CURRENTS IN MARINE ELECTRIC POWER SYSTEMS WITH DIRECT CURRENT POWER DISTRIBUTION." Vestnik Gosudarstvennogo universiteta morskogo i rechnogo flota imeni admirala S. O. Makarova 14, no. 2 (2022): 296–305. http://dx.doi.org/10.21821/2309-5180-2022-14-2-296-305.

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A method for calculating shock short-circuit currents in marine electric power systems with direct current distribution of electricity is presented in the paper. These systems are widely used in shipbuilding. The calculation of short-circuit currents in such systems has a number of features related to the operating modes of these networks. In the systems with direct current electricity distribution, the generation and consumption of electricity is carried out on alternating current, while the distribution is carried out on direct current. The current standards for calculating short-circuit cur

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Villanueva-Díaz, José, Arian Correa-Díaz, Luis Ubaldo Castruita-Esparza, Jesús Valentín Gutiérrez-García, Aldo Rafael Martínez-Sifuentes, and Fátima del Rocío Reyes-Camarillo. "Tree Rings as Proxies of Historical Runoff in a National Park in Northern Mexico: A Major Ecosystem Service Provider." Atmosphere 14, no. 8 (2023): 1199. http://dx.doi.org/10.3390/atmos14081199.

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A dendrochronological network of conifers (Pinus leiophylla, Pinus cembroides, Pinus engelmannii) was developed in the Cumbres de Majalca National Park (CMNP) in Chihuahua, Mexico, to reconstruct historical runoff patterns and examine the impact of ocean–atmosphere phenomena. The CMNP plays a vital role as a runoff source for Conchos River tributaries and groundwater recharge for Chihuahua City and nearby populations. The ring-width chronologies displayed a common signal from 1859 to 2021, with the highest association found between P. engelmannii and P. leiophylla (r = 0.65) and the lowest bet

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Servettaz, Aymeric P. M., Cécile Agosta, Christoph Kittel, and Anaïs J. Orsi. "Control of the temperature signal in Antarctic proxies by snowfall dynamics." Cryosphere 17, no. 12 (2023): 5373–89. http://dx.doi.org/10.5194/tc-17-5373-2023.

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Abstract. Antarctica, the coldest and driest continent, is home to the largest ice sheet, whose mass is predominantly recharged by snowfall. A common feature of polar regions is the warming associated with snowfall, as moist oceanic air and cloud cover increase the surface temperature. Consequently, snow that accumulates on the ice sheet is deposited under unusually warm conditions. Here we use a polar-oriented regional atmospheric model to study the statistical difference between average and snowfall-weighted temperatures. During snowfall, the warm anomaly scales with snowfall amount, with th

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Rempe, Daniella M., and William E. Dietrich. "Direct observations of rock moisture, a hidden component of the hydrologic cycle." Proceedings of the National Academy of Sciences 115, no. 11 (2018): 2664–69. http://dx.doi.org/10.1073/pnas.1800141115.

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Recent theory and field observations suggest that a systematically varying weathering zone, that can be tens of meters thick, commonly develops in the bedrock underlying hillslopes. Weathering turns otherwise poorly conductive bedrock into a dynamic water storage reservoir. Infiltrating precipitation typically will pass through unsaturated weathered bedrock before reaching groundwater and running off to streams. This invisible and difficult to access unsaturated zone is virtually unexplored compared with the surface soil mantle. We have proposed the term “rock moisture” to describe the exchang

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Samedov, Pirverdi, Beyli Aliyeva, Vafa Mammadzade, et al. "Biological Indicators and Their Significance in the Diagnosis of Alluvial-Meadow Soils." Natural Systems and Resources, no. 3 (October 2023): 42–48. http://dx.doi.org/10.15688/nsr.jvolsu.2023.3.6.

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The priority issue that is covered in the article is the expediency of using biological indicators in the diagnosis of alluvial-meadow soils. In Azerbaijan, floodplain soils, common on terraces and alluvial fans of large rivers, where there are groundwater recharge conditions and the influence of the flood floodplain regime, have been widely studied. Alluvial-meadow soils develop under the meadow soil with forb-cereal groups and shrub vegetation under the active influence of groundwater occurring at a depth of 1.0–3.5 and surface (flood) moisture. Rich herbaceous vegetation causes the developm

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Kolev, Sava, and Mila Trayanova. "Geological and geomorphological conditions of Archar-Orsoya lowland as a factor for the formation of groundwater chemical composition and in risk of its contamination." Engineering Geology and Hydrogeology 35, no. 1 (2021): 63–70. http://dx.doi.org/10.52321/igh.35.1.63.

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The Archar-Orsoya lowland is situated in the Danube floodplain west of the town of Lom, NW Bulgaria. It is aligned in a west-east direction along the Danube River and to the south it is bounded by a high landslide slope, built of Pliocene clays and sands. Parallel to the shore, sand dunes are formed with lowered sections between them, in which there are conditions for swamping. The lowland is made up of the alluvial sediments of the Danube, represented by a lower gravelly-sandy layer and an upper sandy-clayey layer. In the gravelly-sandy layer unconfined groundwater is accumulated, with shallo

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Toshisuke, Maruyama, Yoshida Masashi, Takase Keiji, Takimoto Hiroshi, and Noto Fumikazu. "Assessment of Nitrogen Pollution Load Potential for Groundwater by Mass Balance in the Tedori River Alluvial Fan Areas, Japan." Sustainable Agriculture Research 2, no. 1 (2012): 76. http://dx.doi.org/10.5539/sar.v2n1p76.

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<p>To assess the nitrogen pollution load potential (NPLP) of groundwater, mass balance over a recent five-year period (2006–2010) was analyzed within the Tedori River alluvial fan area, Ishikawa Prefecture, Japan. All components of the hydrologic cycle in polluted regions of the study area were analyzed based on water and nitrogen balance. The water balance model was based on the exchange of river water between the channel/soil surface and the aquifer horizon fractions. The water balance calculation was conducted by considering precipitation, evapotranspiration, direct runoff, and infilt

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