Hossein Bayat
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View article: Tracing of phosphorus in river sediments using the structural equation modeling
Tracing of phosphorus in river sediments using the structural equation modeling Open
Phosphorus (P) is transported into the water resources mainly due to soil erosion. Using the structural equation modeling, this study investigated the relative contribution of different P-producing sources in the Pasikhan River watershed, …
View article: A technical evaluation on the mathematical attitudes and fitting accuracy of soil moisture retention curve models
A technical evaluation on the mathematical attitudes and fitting accuracy of soil moisture retention curve models Open
Numerous mathematical equations have been formulated in the literature of different researchers for describing soil moisture retention curve (SMRC), which can be applied to simulate and solve soil hydraulic modeling problems. The primary c…
View article: Scale-Dependent Field Partition Based on Water Retention Functional Data
Scale-Dependent Field Partition Based on Water Retention Functional Data Open
Functional data are being used increasingly in recent years and in many environmental sciences, such as hydrology applied to agriculture. This means that the output, instead of a scalar variable represented by a spatial map, is given by a …
View article: Fingerprinting of Phosphorus in river sediments using the structural equation modeling
Fingerprinting of Phosphorus in river sediments using the structural equation modeling Open
Phosphorus (P) is transported into the water resources mainly due to soil erosion. Accumulation of P in water bodies leads to the subsequent eutrophication phenomenon. Using the structural equation modeling, this study investigated the rel…
View article: An experimental study on one-step and two-step foaming of natural rubber/silica nanocomposites
An experimental study on one-step and two-step foaming of natural rubber/silica nanocomposites Open
The curing and cellular structure of natural rubber (NR)/silica composite foams were investigated. The presence of an activator in the rubber formulation significantly lowered the decomposition temperature of the azodicarbonamide foaming a…
View article: Fitting soil particle-size distribution (PSD) models by PSD curve fitting software
Fitting soil particle-size distribution (PSD) models by PSD curve fitting software Open
This paper describes a particle-size distribution (PSD) curve fitting software for analyzing the soil PSD and soil physical properties. A better characterization of soil texture can be obtained by describing the soil PSD using mathematical…
View article: Effect of coupling agent on the morphological characteristics of natural rubber/silica composites foams
Effect of coupling agent on the morphological characteristics of natural rubber/silica composites foams Open
The effect of coupling agent on the morphological characteristics of natural rubber/silica composite foams with various silica contents was studied. Bis 3-triet-hoxysilylpropyl tetrasulfide (TESPT) was used as coupling agent in this system…
View article: Study of Saturated Hydraulic Conductivity Variations in Different Aggregate Size Distributions in an Agricultural Soil
Study of Saturated Hydraulic Conductivity Variations in Different Aggregate Size Distributions in an Agricultural Soil Open
Study of Saturated Hydraulic Conductivity Variations in Different Aggregate Size Distributions in an Agricultural Soil
View article: The assessment of Levenberg–Marquardt and Bayesian Framework training algorithm for prediction of concrete shrinkage by the artificial neural network
The assessment of Levenberg–Marquardt and Bayesian Framework training algorithm for prediction of concrete shrinkage by the artificial neural network Open
Shrinkage and creep are the main concrete volume changes over time. This unacceptable concrete deformation leads to stress and cracks creation where eventually reduces the service life of concrete structures. According to this, the predict…
View article: Estimating soil water characteristic curve using landscape features and soil thermal properties
Estimating soil water characteristic curve using landscape features and soil thermal properties Open
Soil water characteristic curve (SWCC) is a very important soil function with several environmental applications. Using pedotransfer functions as a quick and easy way to estimate the SWCC has been proposed to avoid its difficult and time-c…
View article: Comparison of Effectiveness of the Mindfulness-Based Cognitive Therapy and the Metacognition Treatment on Anxiety, Depression and Stress Among Breast Cancer Patients
Comparison of Effectiveness of the Mindfulness-Based Cognitive Therapy and the Metacognition Treatment on Anxiety, Depression and Stress Among Breast Cancer Patients Open
Background: The present study aimed to compare the effectiveness the metacognition treatment (MCT) and mindfulness-based cognitive therapy (MBCT) on anxiety, depression, and stress in the females with breast cancer. Methods: The planning o…
View article: The codification long-term goal and strategy development of intramuralprograms of Islamic Azad Universities in North West of Iran
The codification long-term goal and strategy development of intramuralprograms of Islamic Azad Universities in North West of Iran Open
This study aimed to perform the SWOT Internal and external strategic analysis of intramural programs of Islamic Azad Universities in North West of Iran. This was a descriptive case study. The population consisted of all physical education …
View article: Parametric Estimation of Water Retention Using Mgmdh Method and Principal Component Analysis
Parametric Estimation of Water Retention Using Mgmdh Method and Principal Component Analysis Open
Performing a primary analysis, such as principal component analysis (PCA) may increase accuracy and reliability of developed pedotransfer functions (PTFs). This study focuses on the usefulness of the soil penetration resistance (PR) and pr…
View article: PEDOTRANSFER FUNCTIONS CAPABILITY TO SIMULATE BEHAVIOUR OF SMECTITIC SOILS IN ESTIMATION OF VARIOUS SOIL WATER RETENTION CURVE MODELS
PEDOTRANSFER FUNCTIONS CAPABILITY TO SIMULATE BEHAVIOUR OF SMECTITIC SOILS IN ESTIMATION OF VARIOUS SOIL WATER RETENTION CURVE MODELS Open
For modelling the flow transport in unsaturated conditions, we can use hydraulic properties which are expensive and time-consuming to be obtained directly because of high variability and complexity of soil systems. Few studies have been do…
View article: Effects of various input levels and different soil water retention curve models on water content estimation using different statistical methods
Effects of various input levels and different soil water retention curve models on water content estimation using different statistical methods Open
This study investigated the impact of different input variables on the predictability of the water content using soil water retention curve (SWRC) models. The particle and aggregate size distribution model parameters were calculated by fit…