Papers by Hossein Mohammadi
For downloading the full-text of this article please click here. Background and Objective: Marita... more For downloading the full-text of this article please click here. Background and Objective: Marital conflicts of couples arise due to differences in their needs and satisfying them, self-orientation, irresponsible behavior, and conflict of demands. Social adaptation is adaptive behaviors acquired to meet the surrounding needs that often require the correction of impulses, excitements and attitudes. The main objective of this study was to evaluate the effect of emotion-focused couple therapy based on religious teachings on social compatibility and marital conflicts of couples. Method: The present study was a clinical trial in which a pre- and post-test with control group was used.The statistical population of this study included all couples referring to the family clinic of Shahid Beheshti University in 2016.40 couples were selected by available sampling method and placed in the group of emotion-focused couple therapy based on religious teachings(n=20) and control group (n=20).For the...
Biyutiknuluzhi-i kishavarzi, 2020
Objective Identifying genes with large effects on economically important traits, has been one of ... more Objective Identifying genes with large effects on economically important traits, has been one of the important goals in chicken breeding. The present study aimed to conduct a genome wide association studies (GWAS) based on Gene-set enrichment analysis for identifying the loci associated with egg weight in Rhode Island Red chicken using the high-density SNPs. Materials and methods Phenotypes records and genotypic data were obtained from the Figshare online public repository. The gene set analysis consists basically in three different steps: the assignment of SNPs to genes, the assignment of genes to functional categories, and finally the association analysis between each functional category and the phenotype of interest. Genome wide association study for 1,078 hens was performed with egg weight including first egg weight, eggs weight at 28, 36, 56, 66, 72, and 80 weeks of age using GenABEL software. Using the biomaRt2 R package the SNP were assigned to genes if they were within the...
To assess the changes trend of ABA and GA3 hormones and biochemical compounds of seeds 8 domestic... more To assess the changes trend of ABA and GA3 hormones and biochemical compounds of seeds 8 domesticated and wild almond cultivars during the germination process, this study during the year of 2011 and 2012 in horticultural research station of seed and plant improvement institute, Karaj as factorial on the base completely randomized design was done. These factors include almond seeds in 8 levels (Supernova, Perlis, D99, marcona, Rabie, k66, A. elangifolia and A. arabica) and time in two levels (before and after germination). The results of the reviews of hormonal changes, the amount of enzymatic activity, protein, glucose, fructose and amino acid proline at the stage before and after germination of seeds showed that the with germination of seeds concentration of ABA hormone reduced and concentration of GA3hormone, amount of the enzyme activity of amylase and peroxidase, concentration of glucose, fructose, total protein and proline increased, while difference between seeds of wild and d...
Volume 10: Mechanical Systems and Control, Parts A and B, 2009
Medical & biological engineering & computing, Jan 28, 2014
Aging and some pathologies such as arterial hypertension, diabetes, hyperglycemia, and hyperinsul... more Aging and some pathologies such as arterial hypertension, diabetes, hyperglycemia, and hyperinsulinemia cause some geometrical and mechanical changes in the aortic valve microstructure which contribute to the development of aortic stenosis (AS). Because of the high rate of mortality and morbidity, assessing the impact and progression of this disease is essential. Systolic transvalvular pressure gradient (TPG) and the effective orifice area are commonly used to grade the severity of valvular dysfunction. In this study, a theoretical model of the transient viscous blood flow across the AS is derived by taking into account the aorta compliance. The derived relation of the new TPG is expressed in terms of clinically available surrogate variables (anatomical and hemodynamic data). The proposed relation includes empirical constants which need to be empirically determined. We used a numerical model including an anatomically 3D geometrical model of the aortic root including the sinuses of V...
Nonlinear Dynamics, 2014
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Composite Structures, 2013
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Applied Mathematics and Computation, 2013
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Iranica Journal of Energy and Environment (IJEE)
Abstract: In this research, the villages with water supply systems under the supervision of the W... more Abstract: In this research, the villages with water supply systems under the supervision of the Water and Wastewater Company were studied. Turbidity, fecal coliform, Heterotrophic Plate Count (HPC) and free residual chlorine were analyzed. The measured turbidity and free residual chlorine in many of the villages were less than drinking water guidelines. Heterotrophic Plate Count (HPC) and fecal coliforms tests in drinking water samples were positive. According to the results, it is found out that the water source used for drinking ...
Dr. Seyed Kazem Alavipanah, faculty member of Remote sensing and GIS department, geography facult... more Dr. Seyed Kazem Alavipanah, faculty member of Remote sensing and GIS department, geography faculty, University of Tehran and colleague of GRI,
Dr. Seyed Kazem Alavipanah, faculty member of Remote sensing and GIS department, geography facult... more Dr. Seyed Kazem Alavipanah, faculty member of Remote sensing and GIS department, geography faculty, University of Tehran and colleague of GRI,
Dr. Seyed Kazem Alavipanah, faculty member of Remote sensing and GIS department, geography facult... more Dr. Seyed Kazem Alavipanah, faculty member of Remote sensing and GIS department, geography faculty, University of Tehran and colleague of GRI,
Journal of Computational and Theoretical Nanoscience, Mar 1, 2015
ABSTRACT A Quantum-dot cellular automata (QCA) is a novel transistor less computation paradigm ba... more ABSTRACT A Quantum-dot cellular automata (QCA) is a novel transistor less computation paradigm based on majority gate at the Nano scale. As this technology work base on majority gates so it is very important to develop new design of majority gates with more inputs support. In this paper, we present a novel quantum-dot cellular automata reconfigurable majority gate that support five and seven inputs. Using our proposed gates could help QCA designers to develop circuits more efficient due to utilizing lesser QCA gates and cells counts. To illustrate these facts a new design of quantum-dot cellular automata (QCA) Full adder is developed at the end of this paper.
Journal of Computational and Theoretical Nanoscience, 2015
ABSTRACT A Quantum-dot cellular automata (QCA) is a novel transistor less computation paradigm ba... more ABSTRACT A Quantum-dot cellular automata (QCA) is a novel transistor less computation paradigm based on majority gate at the Nano scale. As this technology work base on majority gates so it is very important to develop new design of majority gates with more inputs support. In this paper, we present a novel quantum-dot cellular automata reconfigurable majority gate that support five and seven inputs. Using our proposed gates could help QCA designers to develop circuits more efficient due to utilizing lesser QCA gates and cells counts. To illustrate these facts a new design of quantum-dot cellular automata (QCA) Full adder is developed at the end of this paper.
Egyptian Journal of Petroleum, 2012
ABSTRACT In this investigation, the Warren and Root model proposed for the simulation of naturall... more ABSTRACT In this investigation, the Warren and Root model proposed for the simulation of naturally fractured reservoir was improved. A reservoir simulation approach was used to develop a 2D model of a synthetic oil reservoir. Main rock properties of each gridblock were defined for two different types of gridblocks called matrix and fracture gridblocks. These two gridblocks were different in porosity and permeability values which were higher for fracture gridblocks compared to the matrix gridblocks. This model was solved using the implicit finite difference method. Results showed an improvement in the Warren and Root model especially in region 2 of the semilog plot of pressure drop versus time, which indicated a linear transition zone with no inflection point as predicted by other investigators. Effects of fracture spacing, fracture permeability, fracture porosity, matrix permeability and matrix porosity on the behavior of a typical naturally fractured reservoir were also presented.
Egyptian Journal of Petroleum, 2013
ABSTRACT This work concerns to improve accuracy and convergence speed of Whitson algorithm, appli... more ABSTRACT This work concerns to improve accuracy and convergence speed of Whitson algorithm, applied for calculating compositional changes in petroleum reservoirs. These improvements are implemented by choosing the proper calculated value of the parameter λ and using the more proper way to choose the pressure estimation in algorithm. In this method both liquid and gas phase calculations use just one reference point in calculations. Reference point is a point where certain compositions and pressure are set for a certain depth. Results of this improved numerical algorithm are matched well with the results of commercial software that validate this method. Results show that calculations would be more accurate by inserting some modifications into algorithm.
International Journal of Material Forming, 2011
Journal of Petroleum Science and Engineering, 2012
ABSTRACT The objective of this research is to build a response surface based on Kriging method to... more ABSTRACT The objective of this research is to build a response surface based on Kriging method to predict accumulative outflow from a mature reservoir as a function of location, direction and length of a new horizontal well over a planning horizon. Investigating the impacts of horizontal well parameters on the outflow using repetitive runs of reservoir flow simulation would involve enormous computation time for evaluating possible well placement scenarios. Instead, we construct a Kriging model to build a good approximation of accumulated outflow from a reservoir when a new horizontal well is to be drilled. Kriging method is a geostatistical approach in which the spatial correlation of samples can be estimated via a variogram or a covariance matrix. The objective of this research is to find a more accurate estimate of the covariance matrix used in the construction of Kriging model. The method includes an optimization model to smoothen the noisy experimental covariance matrix which in turn leads to enhancing the fitting process. We have observed a very good fit of the resulting Kriging model in a case study on a mature oil reservoir in Iran for which a dynamic simulation model was set up previously. However, it is necessary to add the nugget effect to the model in order to yield better predictions.
Journal of Natural Gas Science and Engineering, 2013
ABSTRACT Most of gas condensate reservoirs (GCRs) are detected in deep and tight formations. In t... more ABSTRACT Most of gas condensate reservoirs (GCRs) are detected in deep and tight formations. In these reservoirs, formation of near wellbore gas condensate is a significant factor influencing the production even in low fluid richness situation. The formation of condensate jots while the pressure dropping below the dew point and low well deliverability in low permeability GCRs complicate analyzing the well test and characterizing the reservoir. In this work, the pseudo-pressure functions were applied to linearize a two-phase flow including gas and gas condensate through the porous media. In analyzing the well test, various techniques such as a single-phase function and a two-phase pseudo-pressure function were used. In addition, a two-zone steady-state and a three-zone method were examined to calculate a two-phase pseudo-pressure function. Also, the role of different parameters e.g. fluid richness, relative permeability curves, mechanical skin factor, initial pressure difference with the dew point and flow rate were precisely determined. The effects of various causes on the condensate formation and pseudo-pressure function were studied and the accuracy of permeability and skin factor estimations of mentioned various methods in different near wellbore regions were determined.
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Papers by Hossein Mohammadi