A5100617921- Soil and Unsaturated Flow
- Groundwater flow and contamination studies
- Fluid Dynamics and Turbulent Flows
- Fluid Dynamics and Vibration Analysis
- Rheology and Fluid Dynamics Studies
- Fluid Dynamics and Mixing
- Soil and Water Nutrient Dynamics
- Groundwater and Isotope Geochemistry
- Heat Transfer and Boiling Studies
- Fluid Dynamics and Heat Transfer
- Grouting, Rheology, and Soil Mechanics
- Cellular Mechanics and Interactions
- Land Use and Ecosystem Services
- Fecal contamination and water quality
- Heat transfer and supercritical fluids
- Supercapacitor Materials and Fabrication
- Metal-Organic Frameworks: Synthesis and Applications
- Soil Moisture and Remote Sensing
- Chemical Analysis and Environmental Impact
- Soil Carbon and Nitrogen Dynamics
- Lubricants and Their Additives
- Electrocatalysts for Energy Conversion
- Water Treatment and Disinfection
- Nanoporous metals and alloys
- Landfill Environmental Impact Studies
Arak University
2025
Chungnam National University
2023-2024
Iran University of Science and Technology
2023
Islamic Azad University Central Tehran Branch
2022
Islamic Azad University of Damavand
2022
University of Isfahan
2019-2022
Bu-Ali Sina University
2021
Islamic Azad University, Tehran
2017-2018
Tarbiat Modares University
2014
Agricultural Research Service
1999-2007
ABSTRACT In the present study, to improve rheological behavior and heat transfer characteristics of engine oil, nanolubricants were prepared by suspension graphene nanoparticles (GNPs) (2–8 nm) tungsten trioxide (WO 3 ) (23–65 in working fluid using a two‐step approach. The nanoengine oil had good stability dispersibility without agglomeration phenomenon. influences adding NPs base on dynamic viscosity shear stress for different rates at room temperature studied. nanofluid increased with...
A two-fluid model is widely employed to predict gas–liquid two-phase flows. Conventional equations, derived by assuming that all phases are interpenetrating continua, occasionally yield impractical results. For example, the bubble velocity predicted be higher than water for a horizontal fully developed bubbly flow. One solution this irrational result momentum equations based on motion of fluid particles. This study revisits particle-motion-based equations. Previously, it was validated only...
Experiments were conducted to assess the effects of soil water content on denitrification during hairy vetch (Vicia villosa) decomposition. Hairy plants grown from seed maturity in cores. Before and after kill, simulated rainfall was applied cores weekly leachate analyzed for NO−3 NH+4. Denitrification incubations (ca. 48 h duration) 3, 17, 31, 45 days kill using acetylene block method. Soil varied systematically give a range percent water-filled pore space (WFPS) values field capacity (60%)...
In this study, the spatiotemporal behavior of vegetation cover in Kurdistan province Iran was analyzed for first time by TIMESAT and Breaks Additive Season Trend (BFAST) algorithms. They were applied on Normalized Vegetation Index (NDVI) series from 2000 to 2016 derived Moderate Resolution Imaging Spectroradiometer (MODIS) observations. The software package used estimate seasonal parameters NDVI their relation land covers. BFAST identifying abrupt changes (breakpoints) magnitudes. results...
Perchlorate has been detected in U.S. milk samples from many different states. Applying data a recently reported 9-week experiment which 16 Holstein dairy cows were administered perchlorate allowed us to derive an equation for the dose-response relationship between concentrations feed/drinking water and its appearance milk. Examination of background total mixed ration (TMR) fed addition variable dose supplied treated as ruminal infusate revealed that receive significant exposure TMR. Weekly...
Abstract The effectiveness of shallow groundwater areas to serve as a sink for NO 3 is affected by many biological and physical properties. However, the direct impact these properties on fate in not well understood, especially where soils are intermittently saturated. This study was conducted assess situ reaction transport ‐N an intermittent system. Tracer experiments were within imposed constant flowing groundwater. A constant‐head, single injection technique adapted this using multilevel...
The main objective of this manuscript is to investigate the effects environmental aesthetics elements urban designing on formation part city (as fundamental characteristics form).For purpose, comparative article explains aesthetic that are affecting structure cities during history urbanism (Teotihuacan, Beijing, Athena, Rome, Paris, Washington, Brasilia, and Isfahan) pave way for analysis improvement contemporary cities' quality.For present study employs analytical-descriptive research...
Results are presented of an experimental program to determine the functional dependence microwave reflectivity nonvegetated soil surfaces upon volumetric moisture and matric potential. A combination evaporation-drainage field experiment was conducted on a bare Captina silt loam with reflectivity, content, potential monitored for extended time periods. show that restricted pressure range (approximately -0.05 -0.75 bar) there is excellent linear correlation between log bistatic both content...
Manures are sources of several human pathogens that can potentially contribute to surface and groundwater contamination. Microorganisms must first be released from the manure matrix before they infiltrate into leach through vadose zone. The objective this study was estimate rates rainfall-induced release fecal coliform (FC) surface-applied bovine manure. Simulated rainfall 7.1 cm h−1 applied 90-cm-long lysimeters filled with undisturbed stony soil. When steady state reached, clumps were...
Manures are sources of several human pathogens that can potentially contribute to surface and groundwater contamination. Microorganisms must first be released from the manure matrix before they infiltrate into leach through vadose zone. The objective this study was estimate rates rainfall-induced release fecal coliform (FC) surface-applied bovine manure. Simulated rainfall 7.1 cm h−1 applied 90-cm-long lysimeters filled with undisturbed stony soil. When steady state reached, clumps were...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEstimation of granular carbofuran dissolution rates in soilDaniel R. Shelton, Ali M. Sadeghi, and Allan IsenseeCite this: J. Agric. Food Chem. 1993, 41, 7, 1134–1138Publication Date (Print):July 1, 1993Publication History Published online1 May 2002Published inissue 1 July 1993https://pubs.acs.org/doi/10.1021/jf00031a024https://doi.org/10.1021/jf00031a024research-articleACS PublicationsRequest reuse permissionsArticle...
This study is focused on the flow of shear thinning and thickening fluids Herschel-Bulkley type past a partial vertical wall in between plates. Upon numerically solving continuity momentum equations analyzed throughout domain using finite volume scheme. The stress at together with velocity distribution are evaluated compared to experimental results for several values coefficients fluidity behavior index. Dynamic viscosity other variables calculated domain.
Abstract A better understanding is needed of the factors that control fate chemicals move laterally in shallow groundwater within fields to tile lines and drainage ditches from nearby streams or estuaries. chamber was designed used simulate flow field. The chamber, made Plexiglas with dimensions 120 by 60 cm, filled a depth 30 cm sand. multiport arrangement 10‐mm‐diam. holes on 5 grid both end walls provided combination for quite uniform solute application at inlet side, allowed sampling...
In this study a computer code (in FORTRAN90) was used to inversely estimate the parameters in Philips threeparametertype infiltration equation and evaluate possibility of its extrapolation beyond experimental data set. The usesnonlinear least square optimization procedure Gauss-Levenberg-Marquardt algorithm minimize objective function findthe optimized values parameters. Double ring infiltrometers were gather as an input code.Comparison simulation results obtained using model with those...