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Journal articles on the topic 'Effective Water Input'

Author: Grafiati

Published: 9 March 2023

Last updated: 31 July 2025

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1

Bai, Yang, Chengqian Sun, Li Wang, Yang Wu, Jiaman Qin, and Xi Zhang. "The Characteristics of Net Anthropogenic Nitrogen and Phosphorus Inputs (NANI/NAPI) and TN/TP Export Fluxes in the Guangdong Section of the Pearl River (Zhujiang) Basin." Sustainability 14, no. 23 (2022): 16166. http://dx.doi.org/10.3390/su142316166.

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Human activities have greatly influenced the inputs and cycling pathways of nitrogen (N) and phosphorus (P), causing dramatic environmental problems in the Pearl River Basin. In this study, the characteristics of net anthropogenic nitrogen and phosphorus inputs (NANI/NAPI) were analyzed in the Guangdong section of the Pearl River Basin from 2016 to 2020. NANI showed a very slight decrease trend from (1.51 ± 0.09) × 104 to (1.36 ± 0.08) × 104 kg·N·km−2·yr−1, while the average intensity of NAPI was 3.8 × 103 kg·P·km−2·yr−1. Both NANI and NAPI intensities were at high levels, resulting in the ser

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2

Obodovych, O. M., B. Y. Tselen, О. О. Pereiaslavtseva, and O. E. Stepanova. "DISCRETE PULSE INPUT OF ENERGY IS AN EFFECTIVE METHOD OF REMOVING CALCIUM HYDROCARBONATE AND REDUCING WATER HARDNESS." Thermophysics and Thermal Power Engineering 46, no. 3 (2024): 33–43. https://doi.org/10.31472/ttpe.3.2024.4.

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For municipal water supply systems, industrial enterprises, and thermal plants, the content of mineral impurities in water is regulated, which necessitates the use of technologies for their removal. The object of study was water from an artesian well, which was treated on a rotor-pulsation apparatus that implements the principle of discrete-pulse energy input in an aeration-oxidizing setup of rotor type. The effect of the principle of discrete-pulse energy input on the process of extracting calcium bicar- bonate from water to reduce its hardness is studied. It was determined that when treating

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3

Asadollahfardi, Gholamreza, Ahmad Khodadadi, and Reza Gharayloo. "The Assessment of Effective Factors on Anzali Wetland Pollution Using Artificial Neural Networks." Asian Journal of Water, Environment and Pollution 7, no. 2 (2010): 23–30. http://dx.doi.org/10.3233/ajw-2010-7_2_05.

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Anzali wetland, which is located in north part of Iran, is one of the most important ecosystems in the world considering economical and environmental features, and is in the list of Ramsar Convention. Receiving wastewater with minimum treatment caused increasing water pollution in the wetland. In this regard, having enough and accurate data and precise interpretation are necessary which may help water quality management. There are many methods for interpretation of data. In this work, prediction of COD parameter in Siakeshim station in south part of the wetland was studied using Artificial Neu

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4

Shah, Muhammad Izhar, Taher Abunama, Muhammad Faisal Javed, et al. "Modeling Surface Water Quality Using the Adaptive Neuro-Fuzzy Inference System Aided by Input Optimization." Sustainability 13, no. 8 (2021): 4576. http://dx.doi.org/10.3390/su13084576.

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Modeling surface water quality using soft computing techniques is essential for the effective management of scarce water resources and environmental protection. The development of accurate predictive models with significant input parameters and inconsistent datasets is still a challenge. Therefore, further research is needed to improve the performance of the predictive models. This study presents a methodology for dataset pre-processing and input optimization for reducing the modeling complexity. The objective of this study was achieved by employing a two-sided detection approach for outlier r

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Morais, Yasmim Yathiara Gomes Araújo, Fernando José Freire, Rosival Barros de Andrade Lima, Edilane Alice de Alcântara Assunção, Shyrlaine Lilian Moura Leão, and Lidiana Nayara Ralph. "STEMFLOW NUTRIENT INPUT IN TREES IN A TROPICAL FOREST IN PERNAMBUCO, BRAZIL." FLORESTA 51, no. 3 (2021): 604. http://dx.doi.org/10.5380/rf.v51i3.71464.

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Rainfall is the main source of water in forest ecosystems and stemflow is an important pathway for nutrients to enter these ecosystems. Thus, this study aimed to evaluate effective precipitation in a fragment of tropical forest and stemflow nutrient input of tree species in different periods of rainfall. Total precipitation and throughfall were measured using rain gauges inside and at the edge of the fragment. After a phytosociological survey, nine species with the highest absolute density in the fragment were chosen and three individuals were selected. Water collectors were fixed around their

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6

Kumar, Surender. "Analysing industrial water demand in India: An input distance function approach." Water Policy 8, no. 1 (2006): 15–29. http://dx.doi.org/10.2166/wp.2006.0002.

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This study investigates the water demand of Indian manufacturing plants. It adopts an input distance function approach and approximates it by a translog form. Duality between cost function and input distance function is exploited to retrieve information concerning substitutability and the shadow price of water. The model is estimated using a linear programming approach on a sample of 92 firms over three years. The results show that the average shadow price of water is 7.21 Rupees per kilolitre (Rupees/kl) and the price elasticity of derived demand for water is high, −1.11 on average, a value s

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7

Pratap, Preethi L., Sarah Redman, Michael C. Fagen, and Samuel Dorevitch. "Improving water quality communications at beaches: input from stakeholders." Journal of Water and Health 11, no. 4 (2013): 647–58. http://dx.doi.org/10.2166/wh.2013.077.

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Objectives: Water quality communication practices vary widely and stakeholder input has not played a role in defining acceptable levels of risk. Although the 2012 Recreational Water Quality Criteria (RWQC) emphasize the importance of promptly notifying the public about hazardous conditions, little is known about the public's understanding of notifications, or about levels of risk deemed acceptable. We sought to address these gaps. Methods: A mixed methods approach was used. Focus groups (FGs) provided qualitative data regarding the understanding of surface water quality, awareness, and use, of

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8

Iqbal, Mazhar, Md Rowshon Kamal, Mohd Fazly M., Hasfalina Che Man, and Aimrun Wayayok. "HYDRUS-1D Simulation of Soil Water Dynamics for Sweet Corn under Tropical Rainfed Condition." Applied Sciences 10, no. 4 (2020): 1219. http://dx.doi.org/10.3390/app10041219.

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Assessment of soil water balance is essential to understand water dynamics for optimal use of water and fertilizers. The study intended to simulate soil water dynamics in sweet corn production under tropical rainfed conditions. Surface runoff, subsurface leaching, and evapotranspiration are the main components of water balance, especially in tropical environments. Therefore, intensive field experiments and HYDRUS-1D numerical modeling were applied to investigate the water balance components and analyzing water dynamics. The study was carried out in a sweet corn field for two growing seasons un

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9

Hetling, Leo J., Norbert A. Jaworski, and David J. Garretson. "Comparison of nutrient input loading and riverine export fluxes in large watersheds." Water Science and Technology 39, no. 12 (1999): 189–96. http://dx.doi.org/10.2166/wst.1999.0546.

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An input-output mass balance watershed model was developed and tested on ten large benchmark watersheds in the northeastern United States. Inputs of chlorides, sulfates, potassium, phosphorus, and nitrogen were calculated from published census data on population, wastewater discharges, land use, air emissions, agriculture, forestry, and transportation. Attenuation factors were selected for the inputs, (for example, air deposition, fertilizer, point source discharges) and the average annual riverine export flux for the watersheds was calculated for the period from 1900 to 1995. Historic chlorid

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10

Zhang, Yang, Junjie Li, Song Sun, et al. "Short-Term Water Supply Forecasting for Water Treatment Plant Using Temporal Multi-Scale Features." Water 16, no. 24 (2024): 3573. https://doi.org/10.3390/w16243573.

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Forecasting the water supply of a water treatment plant is an important management and decision-making task in the water treatment system. Currently, most studies in this field do not consider the problems brought about by the time scale when selecting the input feature set. Therefore, this study explores how to select the relevant input feature set and model for the ultra-short-term water demand forecasting (UWDF) of water treatment plants from the perspective of time multi-scale features, in order to provide more accurate and effective water supply planning for water treatment plants. This s

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11

Melesse, Assefa M., Khabat Khosravi, John P. Tiefenbacher, et al. "River Water Salinity Prediction Using Hybrid Machine Learning Models." Water 12, no. 10 (2020): 2951. http://dx.doi.org/10.3390/w12102951.

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Electrical conductivity (EC), one of the most widely used indices for water quality assessment, has been applied to predict the salinity of the Babol-Rood River, the greatest source of irrigation water in northern Iran. This study uses two individual—M5 Prime (M5P) and random forest (RF)—and eight novel hybrid algorithms—bagging-M5P, bagging-RF, random subspace (RS)-M5P, RS-RF, random committee (RC)-M5P, RC-RF, additive regression (AR)-M5P, and AR-RF—to predict EC. Thirty-six years of observations collected by the Mazandaran Regional Water Authority were randomly divided into two sets: 70% fro

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Catenacci, Arianna, Matteo Grana, Francesca Malpei, and Elena Ficara. "Optimizing ADM1 Calibration and Input Characterization for Effective Co-Digestion Modelling." Water 13, no. 21 (2021): 3100. http://dx.doi.org/10.3390/w13213100.

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Anaerobic co-digestion in wastewater treatment plants is looking increasingly like a straightforward solution to many issues arising from the operation of mono-digestion. Process modelling is relevant to predict plant behavior and its sensitivity to operational parameters, and to assess the feasibility of simultaneously feeding a digester with different organic wastes. Still, much work has to be completed to turn anaerobic digestion modelling into a reliable and practical tool. Indeed, the complex biochemical processes described in the ADM1 model require the identification of several parameter

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Martini, Luiz Carlos Pittol. "Sensitivity analysis of the AquaCrop parameters for rainfed corn in the South of Brazil." Pesquisa Agropecuária Brasileira 53, no. 8 (2018): 934–42. http://dx.doi.org/10.1590/s0100-204x2018000800008.

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Abstract: The objective of this work was to perform a sensitivity analysis of the main input parameters required for the AquaCrop water balance model, using biomass and grain yield data of a rainfed-simulated corn crop, obtained along the climate data series of 1987-2016 in the South of Brazil. The levels of soil-water stress and the depths of maximum effective rooting were the input parameters that most affected the biomass and grain yields simulated by the model, followed by the crop coefficient, water-use efficiency, soil water storage capacity, and contribution of groundwater to water avai

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14

Wurbs, Ralph A. "Water Rights Analysis Package Modeling System." Texas Water Journal 12, no. 1 (2021): 68–90. http://dx.doi.org/10.21423/twj.v12i1.7108.

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The water rights analysis package simulates surface water development, allocation, management, and use and performs reliability and frequency analyses of simulation results. The computer modeling system facilitates assessments of hydrologic and institutional water availability and reliability in satisfying requirements for reservoir storage, water supply diversions, environmental instream flows, and hydroelectric energy generation. Reservoir system operations for flood control can be simulated. Capabilities are also provided for tracking salinity concentrations. Basin-wide impacts of water res

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15

Wu, Xia, Lucy Marshall, and Ashish Sharma. "Quantifying input uncertainty in the calibration of water quality models: reordering errors via the secant method." Hydrology and Earth System Sciences 26, no. 5 (2022): 1203–21. http://dx.doi.org/10.5194/hess-26-1203-2022.

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Abstract. Uncertainty in input can significantly impair parameter estimation in water quality modeling, necessitating the accurate quantification of input errors. However, decomposing the input error from the model residual error is still challenging. This study develops a new algorithm, referred to as the Bayesian Error Analysis with Reordering (BEAR), to address this problem. The basic approach requires sampling errors from a pre-estimated error distribution and then reordering them with their inferred ranks via the secant method. This approach is demonstrated in the case of total suspended

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16

Braguglia, C. M., G. Mininni, and A. Gianico. "Is sonication effective to improve biogas production and solids reduction in excess sludge digestion?" Water Science and Technology 57, no. 4 (2008): 479–83. http://dx.doi.org/10.2166/wst.2008.003.

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Results of three semi-continuous anaerobic tests were reported and discussed. Each test was carried out by two parallel anaerobic reactors fed with waste activated sludge, either as it was sampled from the sewage treatment plant of Rome North or previously disintegrated by ultra-sound treatment. Activated sludge was sonicated at the energy input of 5,000 or 2,500 kJ kg−1 dry solids corresponding to a disintegration degree of approximately 8 or 4%, respectively. Sonication proved to be effective both in increasing VS destruction and cumulative biogas production. The best increase of VS destruct

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17

Chaitanya, Tiwari, Ankit Patel Masoom, Sonali Rajput, Upadhyay Aviral, and Nitharwal Shreeram. "The Role of Groundnut in Sustainable Agriculture: Breeding for Reduced Input Dependency." AGRI MAGAZINE 2, no. 4 (2025): 255–58. https://doi.org/10.5281/zenodo.15336177.

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Sustainable agriculture is vital for addressing global food security while maintaining ecological balance. Traditional agricultural practices heavily rely on synthetic inputs such as fertilizers, pesticides, and extensive irrigation systems. These inputs, though effective in enhancing crop yields, come with a host of environmental and economic challenges, including soil degradation, water pollution, and high production costs. As a result, there is increasing interest in low-input agricultural systems that promote resource conservation and enhance resilience to environmental stresses. Groundnut

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18

Adhikary, Sajal Kumar, Nitin Muttil, and Abdullah Gokhan Yilmaz. "Improving streamflow forecast using optimal rain gauge network-based input to artificial neural network models." Hydrology Research 49, no. 5 (2017): 1559–77. http://dx.doi.org/10.2166/nh.2017.108.

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Abstract Accurate streamflow forecasting is of great importance for the effective management of water resources systems. In this study, an improved streamflow forecasting approach using the optimal rain gauge network-based input to artificial neural network (ANN) models is proposed and demonstrated through a case study (the Middle Yarra River catchment in Victoria, Australia). First, the optimal rain gauge network is established based on the current rain gauge network in the catchment. Rainfall data from the optimal and current rain gauge networks together with streamflow observations are used

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19

Cutler, Paul M. "Modelling the evolution of subglacial tunnels due to varying water input." Journal of Glaciology 44, no. 148 (1998): 485–97. http://dx.doi.org/10.3189/s002214300000201x.

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AbstractThe time evolution of a subglacial tunnel cross-section is examined usine a two-dimensional finite-element ice-flow model coupled to an idealized drainage system. Simulations are driven by physically based calculations of surface water-input variations at Slorgiaciaren, Sweden. Highlights of the model are its ability to handle unsteady conditions and irregular tunnel shapes. Agreement between modelled water pressure and borehole water levels is good. The following conclusions are reached: (i) Tunnels adapt to fluctuating inflow on time-scales of days. Storms, during which effective pre

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Cutler, Paul M. "Modelling the evolution of subglacial tunnels due to varying water input." Journal of Glaciology 44, no. 148 (1998): 485–97. http://dx.doi.org/10.1017/s002214300000201x.

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AbstractThe time evolution of a subglacial tunnel cross-section is examined usine a two-dimensional finite-element ice-flow model coupled to an idealized drainage system. Simulations are driven by physically based calculations of surface water-input variations at Slorgiaciaren, Sweden. Highlights of the model are its ability to handle unsteady conditions and irregular tunnel shapes. Agreement between modelled water pressure and borehole water levels is good. The following conclusions are reached: (i) Tunnels adapt to fluctuating inflow on time-scales of days. Storms, during which effective pre

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21

Chaitanya, Kommera, Arjyadhara Pradhan, and Babita Panda. "Solar photovoltaic system fed water pumping system using BLDC motor with single input and multiple output converter." International Journal of Applied Power Engineering (IJAPE) 14, no. 1 (2025): 74. https://doi.org/10.11591/ijape.v14.i1.pp74-80.

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In recent times energy based on renewable energy sources is a good long-term alternative compared with traditional fossil fuel energy sources solar photovoltaic model-based irrigation water pump systems have gained more popularity. The one-input and multi-output converters are focused on BLDC motor drive-based solar photovoltaic with water pump. To model one input and multiple output converter components are connected viz it achieves tracking purpose and BLDC drive soft starting. The one-input and multiple-output converter exhibits the features of all converters and remarkably appears with the

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22

Chitanya, Kommera, Arjyadhara Pradhan, and Babita Panda. "Solar photovoltaic system fed water pumping system using BLDC motor with single input and multiple output converter." International Journal of Applied Power Engineering (IJAPE) 14, no. 1 (2025): 74–80. https://doi.org/10.11591/ijape.v14.i1.pp74-80.

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In recent times energy based on renewable energy sources is a good long-term alternative compared with traditional fossil fuel energy sources solar photovoltaic model-based irrigation water pump systems have gained more popularity. The one-input and multi-output converters are focused on BLDC motor drive-based solar photovoltaic with water pump. To model one input and multiple output converter components are connected viz it achieves tracking purpose and BLDC drive soft starting. The one-input and multipleoutput converter exhibits the features of all converters and remarkably appears with the

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23

Chaitanya, Tiwari, Ankit Patel Masoom, Sonali Rajput, Upadhyay Aviral, and Nitharwal Shreeram. "The Role of Groundnut in Sustainable Agriculture: Breeding for Reduced Input Dependency." Agri Magazine 2, no. 4 (2025): 255–58. https://doi.org/10.5281/zenodo.15315327.

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Sustainable agriculture is vital for addressing global food security while maintaining ecological balance. Traditional agricultural practices heavily rely on synthetic inputs such as fertilizers, pesticides, and extensive irrigation systems. These inputs, though effective in enhancing crop yields, come with a host of environmental and economic challenges, including soil degradation, water pollution, and high production costs. As a result, there is increasing interest in low-input agricultural systems that promote resource conservation and enhance resilience to env

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24

Wei, Xin-Jiang, Xiao Wang, Gang Wei, Cheng-Wei Zhu, and Yu Shi. "Prediction of Jacking Force in Vertical Tunneling Projects Based on Neuro-Genetic Models." Journal of Marine Science and Engineering 9, no. 1 (2021): 71. http://dx.doi.org/10.3390/jmse9010071.

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The vertical tunneling method is an emerging technique to build sewage inlets or outlets in constructed horizontal tunnels. The jacking force used to drive the standpipes upward is an essential factor during the construction process. This study aims to predict the jacking forces during the vertical tunneling construction process through two intelligence systems, namely, artificial neural networks (ANNs) and hybrid genetic algorithm optimized ANNs (GA-ANNs). In this paper, the Beihai hydraulic tunnel constructed by the vertical tunneling method in China is introduced, and the direct shear tests

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Fang, Yujian, Shouqi Yuan, Jinfeng Zhang, Yimeng Weng, and Jianrui Liu. "Utilizing siphon for effective management of air in gravity-fed water pipelines." Canadian Journal of Civil Engineering 45, no. 7 (2018): 559–69. http://dx.doi.org/10.1139/cjce-2017-0490.

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A novel siphon design has been invented and continuously optimized by Mr. Weng to adapt various pipe diameters since 1990. Within the past 30 years of practical experience, although its success is in increasing transmission capacity, delivering water to higher elevation, and longer distance without additional power input has drawn wide social attention. But this technology has not obtained the industrial acceptance so far due to the lack of theoretical knowledge to explain how the head loss is reduced significantly. This paper presents the experimental findings in the laboratory from an undula

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Vallet, A., C. Bertrand, and J. Mudry. "Effective rainfall: a significant parameter to improve understanding of deep-seated rainfall triggering landslide – a simple computation temperature based method applied to Séchilienne unstable slope (French Alps)." Hydrology and Earth System Sciences Discussions 10, no. 7 (2013): 8945–91. http://dx.doi.org/10.5194/hessd-10-8945-2013.

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Abstract. Pore water pressure, build up by recharge of hydrosystems, is one of the main triggering factors of deep seated landslides. Effective rainfall, which is the part of the rainfall which recharges the aquifer, is a significant parameter. Soil-water balance is an accurate way to estimate effective rainfall. Nevertheless this approach requires evapotranspiration, soil water storage and runoff characterization. Available soil storage and runoff were deduced from field observations whereas evapotranspiration computation is a highly demanding method requiring significant input of meteorologi

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27

Khokhani, Aayush, Prince Kalavadiya, Ravindra Taviya, Zeel Morker, and Prof Joseph Sibi. "A Review for an Effective Approach towards Hydroelectric Power Generation Using In-Pipe Mesoscale Submersible Turbine." International Journal for Research in Applied Science and Engineering Technology 10, no. 3 (2022): 1260–74. http://dx.doi.org/10.22214/ijraset.2022.40859.

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Abstract: Turbines are playing a massive role in our day-to-day lives in the back-end portion of lifestyles where they have been efficiently providing us energy through tidal, hydrological, and many such other mediums. A dominant explanation for the need for energy production has been introduced in the 1800s since the requirement for a high consumption of energy in various forms has started taking place. A very common method that has been observed in today’s innovative mannerism is the use of turbines in dams, undersea, elsewhere at locations where the flow of fluid induces better outputs. Ver

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Manohar, Krishpersad, Anthony Ademola Adeyanju, and Kureem Vialva. "Performance characteristics of a small water-hammer head pump." Drinking Water Engineering and Science 12, no. 2 (2019): 59–64. http://dx.doi.org/10.5194/dwes-12-59-2019.

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Abstract. Many rural farming areas are located far from a reliable electricity supply; hence, obtaining a reliable source of water for crops and livestock can prove to be an expensive venture. A water pump operating on the water-hammer effect requires no external power source and can serve as an effective means of pumping water to a higher altitude once a reliable supply is available. A low-cost small water-hammer head pump was designed to operate on the water-hammer head effect created by the sudden stoppage of a flowing fluid. This design consisted of an inlet section followed by the pump bo

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Septiano, Jalest, Amega Yasutra, and Silvya Dewi Rahmawati. "Build of Machine Learning Proxy Model for Prediction of Wax Deposition Rate in Two Phase Flow Water-Oil." Scientific Contributions Oil and Gas 45, no. 1 (2022): 34–48. http://dx.doi.org/10.29017/scog.45.1.922.

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Wax deposit is one of the major fl ow assurance experienced in the process of oil production and transportation from sub- surface to surface. Large amounts of data are required to perform modeling using existing thermodynamic models such as carbon number data from HGTC. In this paper, a machine learning algorithm using unifi ed model approach from Huang (2008). Two types of input are implemented in order to simulate infl uence of feature selection used in training and testing machine learning which are input A consists of water volume fraction (fw), shear stress (τw), effective viscosity (μe),

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Cui, Zhen, Yanlai Zhou, Shenglian Guo, Jun Wang, and Chong-Yu Xu. "Effective improvement of multi-step-ahead flood forecasting accuracy through encoder-decoder with an exogenous input structure." Journal of Hydrology 609 (June 2022): 127764. http://dx.doi.org/10.1016/j.jhydrol.2022.127764.

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Oubennaceur, Khalid, Karem Chokmani, Miroslav Nastev, et al. "New Sensitivity Indices of a 2D Flood Inundation Model Using Gauss Quadrature Sampling." Geosciences 9, no. 5 (2019): 220. http://dx.doi.org/10.3390/geosciences9050220.

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A new method for sensitivity analysis of water depths is presented based on a two-dimensional hydraulic model as a convenient and cost-effective alternative to Monte Carlo simulations. The method involves perturbation of the probability distribution of input variables. A relative sensitivity index is calculated for each variable, using the Gauss quadrature sampling, thus limiting the number of runs of the hydraulic model. The variable-related highest variation of the expected water depths is considered to be the most influential. The proposed method proved particularly efficient, requiring les

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Zhu, Chuan-Yong, Zhi-Yang He, Mu Du, Liang Gong, and Xinyu Wang. "Predicting the effective thermal conductivity of unfrozen soils with various water contents based on artificial neural network." Nanotechnology 33, no. 6 (2021): 065408. http://dx.doi.org/10.1088/1361-6528/ac3688.

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Abstract The effective thermal conductivity of soils is a crucial parameter for many applications such as geothermal engineering, environmental science, and agriculture and engineering. However, it is pretty challenging to accurately determine it due to soils’ complex structure and components. In the present study, the influences of different parameters, including silt content (m si), sand content (m sa), clay content (m cl), quartz content (m qu), porosity, and water content on the effective thermal conductivity of soils, were firstly analyzed by the Pearson correlation coefficient. Then diff

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Cheng, Minghan, Kaihua Liu, Zhangxin Liu, Junzeng Xu, Zhengxian Zhang, and Chengming Sun. "Combination of Multiple Variables and Machine Learning for Regional Cropland Water and Carbon Fluxes Estimation: A Case Study in the Haihe River Basin." Remote Sensing 16, no. 17 (2024): 3280. http://dx.doi.org/10.3390/rs16173280.

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Understanding the water and carbon cycles within terrestrial ecosystems is crucial for effective monitoring and management of regional water resources and the ecological environment. However, physical models like the SEB- and LUE-based ones can be complex and demand extensive input data. In our study, we leveraged multiple variables (vegetation growth, surface moisture, radiative energy, and other relative variables) as inputs for various regression algorithms, including Multiple Linear Regression (MLR), Random Forest Regression (RFR), and Backpropagation Neural Network (BPNN), to estimate wat

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Dvorkin, Jack, Gary Mavko, and Boris Gurevich. "Fluid substitution in shaley sediment using effective porosity." GEOPHYSICS 72, no. 3 (2007): O1—O8. http://dx.doi.org/10.1190/1.2565256.

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The traditional method of fluid substitution in porous rock requires the total porosity and the elastic modulus of the mineral phase as input and assumes that the fluid reaches instantaneous hydraulic equilibrium throughout the pore space. This assumption may not be appropriate for shaley sediment because of the low permeability of shale and the resulting immobility of the water in it. To address this problem, we propose an alternative method that uses effective porosity instead of total porosity. Effective porosity is lower than total porosity if porous shale is present in the system. A new,

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Telfah, Dua’a B., Aiman Q. Jaradat, and Rabah Ismail. "Examining the Long-Run and Short-Run Relationship between Water Demand and Socio-Economic Explanatory Variables: Evidence from Amman." Sustainability 16, no. 6 (2024): 2315. http://dx.doi.org/10.3390/su16062315.

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This study investigates the key factors that influence household water usage in Amman, Jordan, with the aim of improving water management practices in a region facing significant scarcity. The research focuses on factors such as temperature, water pricing, system input, and family size. The Vector Error Correction Model with Exogenous Variables (VECMX) is applied to data from 1980 to 2015 to provide insights into consumption patterns, both in the short-term and long-term. The results show that family size and marginal costs significantly impact long-term water demand, while system input and fa

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Jung, Hyojae, and Chanjin Chung. "Consumers’ WTP for Sustainability Turfgrass Attributes with Consideration of Aesthetic Attributes and Water Conservation Policies." Agriculture 14, no. 1 (2024): 159. http://dx.doi.org/10.3390/agriculture14010159.

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This study estimates consumers’ willingness to pay (WTP) for sustainability turfgrass attributes such as low-input and stress-tolerance attributes, while considering potential trade-off relationships between aesthetic attributes and sustainability attributes. To address our objectives, our study conducts a choice experiment and estimates two mixed logit models. The first model includes low-input, winter kill, and shade-tolerance attributes as predictor variables, and the second model extends the first model by adding interaction terms between the aesthetic and sustainability attributes. Anothe

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Veer, Saurabh, Saurabh Khandve, Yash Pawar, Kushal Marale, and Prof Ashwini Waghule. "Design Water Supply Network Using Epanet Software." International Journal for Research in Applied Science and Engineering Technology 10, no. 12 (2022): 108–12. http://dx.doi.org/10.22214/ijraset.2022.47828.

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Abstract: This study represents use of EPANET software in the design of water distribution network. EPANET software is a user friendly software. In order to ensure the availability of sufficient quantity of good quality of water to the various section of community in accordance with the demand, many computer tools were developed, out of all the tools available EPANET become most popular and convenient for the effective design of complex pipe networks. This paper highlights only the effective design and distribution of network of pipes using EPANET tool. The residual head at each and every node

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Terzi, Özlem. "Monthly Rainfall Estimation Using Data-Mining Process." Applied Computational Intelligence and Soft Computing 2012 (2012): 1–6. http://dx.doi.org/10.1155/2012/698071.

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It is important to accurately estimate rainfall for effective use of water resources and optimal planning of water structures. For this purpose, the models were developed to estimate rainfall in Isparta using the data-mining process. The different input combinations having 1-, 2-, 3- and 4-input parameters were tried using the rainfall values of Senirkent, Uluborlu, Eğirdir, and Yalvaç stations in Isparta. The most appropriate algorithm was determined as multilinear regression among the models developed with various data-mining algorithms. The input parameters of Multilinear Regression model w

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Nabriss, Ahmad, and Said Lubbad. "Cellulose-supported Silica-based Monolithic Membranes: Fabrication, Characterization and Optimization for Tap-water Desalination." Israa University Journal for Applied Science 7, no. 2 (2024): 23–41. http://dx.doi.org/10.52865/vqci9743.

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Background: The Gaza Strip is faced with a conundrum of high ground-water salinity. This salty water damages home appliances and impairs household RO desalination-units. Methods: Silica-based monolithic-membranes were fabricated by embedding cellulose filter paper in silica-based monolithic membranes and the polymerization was triggered by hydrochloric or citric acids. Results: Twenty-eight membranes were produced utilizing various fabrication recipes and membrane sizes. The membranes performance was evaluated for input tap-water of TDS that ranged between 500 to 5000 ppm and various experimen

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Ledergerber, J. M., T. Maruéjouls, and P. A. Vanrolleghem. "No-regret selection of effective control handles for integrated urban wastewater systems management under parameter and input uncertainty." Water Science and Technology 81, no. 8 (2020): 1749–56. http://dx.doi.org/10.2166/wst.2020.144.

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Abstract Regulatory water quality limits are extended from the wastewater resource recovery facility (WRRF) to the sewer system. It is thus necessary to properly integrate those systems for the evaluation of the overall emissions to the receiving water. The integration of the sewer system and the WRRF, however, leaves us with multiple potential options to reduce these emissions. The proposed approach builds on previous research using global sensitivity analysis (GSA) as a screening method for available control handles. It considers parameter and input uncertainty to select control handles that

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Yang, Jun Jie, Zhi Jiang Zuo, and Wu Xin Yu. "Experimental Investigation on Air-Aided Water EDM." Advanced Materials Research 148-149 (October 2010): 471–74. http://dx.doi.org/10.4028/www.scientific.net/amr.148-149.471.

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Experiments for a new type of electric discharge machining (EDM) were conducted with the water film dielectric formed by tap water and compressed air. An energy factor E is introduced and employed to estimate unit-area effective power input. The experiments show that the flushing conditions with lower air jet pressure can get lower relative tool wear and higher material removal rate (MRR). Higher discharge current and higher energy factor E obtain the higher MRR in air-aided water EDM with positive polarity tool.

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Luca, Davide Luciano De, and Andrea Petroselli. "Advances in Modelling of Rainfall Fields." Hydrology 9, no. 8 (2022): 142. http://dx.doi.org/10.3390/hydrology9080142.

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Rainfall is the main input for all hydrological models, such as rainfall–runoff models and the forecasting of landslides triggered by precipitation, with its comprehension being clearly essential for effective water resource management as well [...]

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Ren, Shu Yan, and Le Peng Song. "Fire Water Supply Control System of Petrochemical Enterprises." Advanced Materials Research 846-847 (November 2013): 335–38. http://dx.doi.org/10.4028/www.scientific.net/amr.846-847.335.

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The petroleum chemical industry in the production process, fire water supply control system can not meet the normal transmission of signal nonlinear, reliability is low. Compared with the conventional fuzzy PID control system of PID water supply system, can be effective for the nonlinear input signal, and faster than the reaction rate of PID control, the more reliable. Application of fuzzy control to the fire water supply system of conventional, enhanced fire system speediness, stability and reliability.

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Adnan, Norliyana, Mohd Parid Mamat, and Tuan Marina Tuan Ibrahim. "Assessing value of water purification services by Kelantan Forest Reserves." IOP Conference Series: Earth and Environmental Science 1102, no. 1 (2022): 012062. http://dx.doi.org/10.1088/1755-1315/1102/1/012062.

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Forest acts as natural water purification agent that is very effective in providing clean water resources to consumers, especially for domestic use. Clean water from natural purification processes would lead to a reduction in water treatment costs at treatment plants. This service is important for safety, assurance of resource availability and health. Hence, the aim of this paper is to assess the value of purification services by Kelantan forest reserves. The assessment is based on economic benefit using the benefit transfer approach of cost functions model with input for environmental values.

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Lin, Cherng-Yuan, and Lei Ma. "Effects of Water Removal from Palm Oil Reactant by Electrolysis on the Fuel Properties of Biodiesel." Processes 10, no. 1 (2022): 115. http://dx.doi.org/10.3390/pr10010115.

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Biodiesel, which is composed of mono-alkyl esters of long carbon-chained fatty acids, is used as an alternative fuel to petro-diesel. The water content of the reactant mixture of feedstock oil influences the extent of transesterification and thus the fuel characteristics. Lower water content in feedstock oil is generally suggested for successful transesterification. This experimental study removed water from the reactant mixture of feedstock palm oil and methanol during transesterification using various systems composed of either electrodes or molecular sieves with rotary vibration. The effect

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Asadi, Haniyeh, Mohammad T. Dastorani, Khabat Khosravi, and Roy C. Sidle. "Applying the C-Factor of the RUSLE Model to Improve the Prediction of Suspended Sediment Concentration Using Smart Data-Driven Models." Water 14, no. 19 (2022): 3011. http://dx.doi.org/10.3390/w14193011.

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The accurate forecasts and estimations of the amount of sediment transported by rivers are critical concerns in water resource management and soil and water conservation. The identification of appropriate and applicable models or improvements in existing approaches is needed to accurately estimate the suspended sediment concentration (SSC). In recent decades, the utilization of intelligent models has substantially improved SSC estimation. The identification of beneficial and proper input parameters can greatly improve the performance of these smart models. In this regard, we assessed the C-fac

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Kou, Li, Hua, and Li. "Hydrochemical Characteristics, Controlling Factors, and Solute Sources of Streamflow and Groundwater in the Hei River Catchment, China." Water 11, no. 11 (2019): 2293. http://dx.doi.org/10.3390/w11112293.

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Water scarcity in arid regions is exacerbated by water quality degradation from anthropogenic contamination. In water-scarce regions, it is crucial to identify hydrochemical characteristics and pollution sources for effective water resource management. In this study, the Hei River—located in the Loess Plateau of China, which is an arid region with substantial anthropogenic-induced environmental changes—was selected as the study area to investigate these issues. The major ions of 242 streamflow and groundwater samples were measured during the 2014 and 2015 dry and flood seasons. Using a Piper d

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Vuolo, F., L. Essl, L. Zappa, T. Sandén, and H. Spiegel. "Water and nutrient management: the Austria case study of the FATIMA H2020 project." Advances in Animal Biosciences 8, no. 2 (2017): 400–405. http://dx.doi.org/10.1017/s2040470017000541.

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The project “FArming Tools for external nutrient Inputs and water Management” (FATIMA, H2020-SFS2) is developing satellite-based methodologies and information to support effective and efficient water and nitrogen input recommendations in agricultural production. This paper focuses on nitrogen recommendation for winter cereals in Austria and presents preliminary findings from the 2015/16 crop growing season. The Nitrogen Nutrition Index was applied using an empirical relationship to derive dry mass from Leaf Area Index (LAI) and %Na from a chlorophyll index. Results showed a very high correlati

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Arnold, J. G., R. Srinivasan, T. S. Ramanarayanan, and M. DiLuzio. "Water resources of the Texas Gulf Basin." Water Science and Technology 39, no. 3 (1999): 121–33. http://dx.doi.org/10.2166/wst.1999.0151.

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A geographic information system (GIS) has been integrated with a distributed parameter, continuous time, nonpoint source pollution model SWAT (Soil and Water Assessment Tool) for the management of water resources. This integration has proven to be effective and efficient for data collection and to visualize and analyze the input and output of simulation models. The SWAT-GIS system is being used to model the hydrology of eighteen major river systems in the United States (HUMUS). This paper focuses on the integration of SWAT (basin scale hydrologic model) with the Geographical Resources Analysis

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Cheng, Hanting, Wen Hu, Xiaohui Zhou, et al. "Fruit Tree Legume Herb Intercropping Orchard System Is an Effective Method to Promote the Sustainability of Systems in a Karst Rocky Desertification Control Area." Forests 13, no. 10 (2022): 1536. http://dx.doi.org/10.3390/f13101536.

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Karst rocky desertification control through the conversion of cropland to economic forest is vital for vegetation recovery and the alleviation of distinct contradiction between ecological conservation and economic development. To evaluate the sustainability of orchard systems from the perspectives of ecosystem and economic services, we employed emergy analysis for the comprehensive and quantitative assessment of two orchard system types: (1) mango monoculture (MM) and macadamia monoculture (NM) and (2) mango Vicia angustifolia intercropping (MVI) and macadamia Desmodium intortum intercropping

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