Meisam Jafari | Islamic Azad University, Najafabad Branch (original) (raw)

Papers by Meisam Jafari

Research paper thumbnail of Identification of New Approach in Acquisition and Management Systems for Foreign Purchase

Changes in business world lead to emergence of different theories and approaches in sectors and c... more Changes in business world lead to emergence of different theories and approaches in sectors and concepts of business including supply and purchase. These approaches result from thoughts and lead to application of new concepts in production and business as well as supply and purchase. For example, application of information and communication technologies is the main cause for emergence of electronic data interchange (EDI) and smart systems in supply and purchase and concepts of lean thinking introduced lean supply approach. These approaches represent evolution of supply since beginning up to now, some which have been replaced by others. Current work aims at identifying and introducing novel approaches in purchase systems. Some theories, novel systems and approaches in relation with supply, purchase and procurement are reviewed in the following and their characteristics are described. In addition, some approaches such as e-commerce, e-business, etc. are also identified and introduced ...

Research paper thumbnail of Assessing the Condition of Macrobenthoses and Water Quality in Choghakhor Wetland through BMWP Index

SSRN Electronic Journal, 2014

Research paper thumbnail of Development and prioritization of socio-economic strategies to elevate public participation in natural resource management using TOPSIS approach; Case Study: Chaharmahal and Bakhtiari Province (Iran)

Journal of Applied Sciences and Environmental Management, 2017

Proper implementation of the participatory projects to conserve national natural resources has be... more Proper implementation of the participatory projects to conserve national natural resources has become much more important over the recent decades. This socioeconomic research seeks developing effective strategies to increase public participation in experts' opinions of Chaharmahal and Bakhtiari Province (Iran), in order to achieve sustainable and integrated management of natural resources. In the first step, the literature review led to the identification of 57 social parameters influencing public participation in the province. In the second step, from the parameters identified, with the help of the Delphi technique, 15 parameters were finalized by experts. This led to the formulation of the effective socioeconomic strategies in the study area. The next step was to prioritize these parameters. For this purpose, the Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) was used in Topsis solver software. The study's statistical population was comprised of the executive experts of Chaharmahal and Bakhtiari Province. The results of the prioritization indicated that the strategy of "the development of alternative livelihoods (A6)" ranks first with normal weight of 0.31, followed by "focus on profitable projects (A2)" with the normal weight of 0.2, and "strengthening social cohesion and trust (A7)" with the normal weight of 0.12, as the most important strategies to increase public participation. The results of this study can be used by managers and executive decision-makers to protect natural resources and increase feasibility of management activities in Chaharmahal and Bakhtiari Province. ©JASEM

Research paper thumbnail of Preparation and Characterization of Bionanocomposites Based on Benzylated Wheat Straw and Nanoclay

Journal of Polymers and the Environment, 2017

Thermal studies confirmed the thermoplasticity of the samples, while the addition of up to 5% nan... more Thermal studies confirmed the thermoplasticity of the samples, while the addition of up to 5% nanoclay showed the increase in crystallization, T g and T m. Nanoclay also can retard thermal decomposition process. The presence of nanoclay improved all mechanical properties except the elongation at break. Nanocomposite with 5% nanoclay showed minimum water absorption and highest hydrophobicity comparing to other samples. This novel bionanocomposite could be a suitable alternative for replacing oil-based plastics in biomembranes and bioseparation processes.

Research paper thumbnail of Dynamic simulation of urban expansion through a CA-Markov model Case study: Hyrcanian region, Gilan, Iran

European Journal of Remote Sensing, 2016

Urban sprawl has become a remarkable feature in urban development, especially in developing count... more Urban sprawl has become a remarkable feature in urban development, especially in developing countries, in the last decades. To face this phenomenon, it is required to first forecast auto-spreading orientation rural areas over time in order to avoid shapeless urban growth. Although GIS/RS and CA-Markov models are applied to study urban growth patterns the world over, very few studies have applied these methods to examine the urban growth of Iran. A major land use change is detected here from 1989 to 2013. In this study the future sprawl of this province is forecasted for target years of 2025 and 2037 through a simulation. The results predict an alarming increase in urban development for the target years of 2025 and 2037, with an expansion is predicted to develop of 11510 and 18320 ha, respectively. In sum, this model is an efficient tool for the support of urban planning decisions and facilitates the process of sustainable urban development providing decisionmakers.

Research paper thumbnail of Dynamic simulation of urban expansion based on cellular automata and logistic regression model: Case study of Hyrcanian region of Iran

Sciprints, 2016

Although, promotion of urbanization culture in recent decades has made inevitable development of ... more Although, promotion of urbanization culture in recent decades has made inevitable development of cities in the world, however, the development can be guided in a direction that leave, to the extent possible, minimum socioeconomic and environmental impacts. For this, it is required to first forecast auto-spreading orientation of cities and suburbs in rural areas over time and then avoid shapeless growth of cities. This paper is an attempt to develop a dynamic hybrid model based on logistic regression (LR), Markov chain (MC), and cellular automata (CA) for prediction of future urban sprawl in fast-growing cities. The model was developed using 12 widely-used urban development criteria, whose significant coefficient was determined by logistic regression, and validated by relative operating characteristic (ROC) analysis. The validated model was run in Guilan, a tourist province in northern Iran with a very high rate of urban development. For this, changes in the area of urban land use we...

Research paper thumbnail of Investigating urban sprawl metrics and dynamics using RS and GIS case study: Gilan province, IRAN

2011 Joint Urban Remote Sensing Event, 2011

Urban sprawl, meaning low density and inefficient development around cities, occurs as a result o... more Urban sprawl, meaning low density and inefficient development around cities, occurs as a result of population explosion and high immigration rate. Urban sprawl results in changes in land use and the loss of agricultural lands and open spaces around cities. In Iran, which has a high rate of urbanization, urban sprawl is considered as one of the main factors transforming

Research paper thumbnail of Identification of New Approach in Acquisition and Management Systems for Foreign Purchase

Changes in business world lead to emergence of different theories and approaches in sectors and c... more Changes in business world lead to emergence of different theories and approaches in sectors and concepts of business including supply and purchase. These approaches result from thoughts and lead to application of new concepts in production and business as well as supply and purchase. For example, application of information and communication technologies is the main cause for emergence of electronic data interchange (EDI) and smart systems in supply and purchase and concepts of lean thinking introduced lean supply approach. These approaches represent evolution of supply since beginning up to now, some which have been replaced by others. Current work aims at identifying and introducing novel approaches in purchase systems. Some theories, novel systems and approaches in relation with supply, purchase and procurement are reviewed in the following and their characteristics are described. In addition, some approaches such as e-commerce, e-business, etc. are also identified and introduced ...

Research paper thumbnail of Assessing the Condition of Macrobenthoses and Water Quality in Choghakhor Wetland through BMWP Index

SSRN Electronic Journal, 2014

Research paper thumbnail of Development and prioritization of socio-economic strategies to elevate public participation in natural resource management using TOPSIS approach; Case Study: Chaharmahal and Bakhtiari Province (Iran)

Journal of Applied Sciences and Environmental Management, 2017

Proper implementation of the participatory projects to conserve national natural resources has be... more Proper implementation of the participatory projects to conserve national natural resources has become much more important over the recent decades. This socioeconomic research seeks developing effective strategies to increase public participation in experts' opinions of Chaharmahal and Bakhtiari Province (Iran), in order to achieve sustainable and integrated management of natural resources. In the first step, the literature review led to the identification of 57 social parameters influencing public participation in the province. In the second step, from the parameters identified, with the help of the Delphi technique, 15 parameters were finalized by experts. This led to the formulation of the effective socioeconomic strategies in the study area. The next step was to prioritize these parameters. For this purpose, the Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) was used in Topsis solver software. The study's statistical population was comprised of the executive experts of Chaharmahal and Bakhtiari Province. The results of the prioritization indicated that the strategy of "the development of alternative livelihoods (A6)" ranks first with normal weight of 0.31, followed by "focus on profitable projects (A2)" with the normal weight of 0.2, and "strengthening social cohesion and trust (A7)" with the normal weight of 0.12, as the most important strategies to increase public participation. The results of this study can be used by managers and executive decision-makers to protect natural resources and increase feasibility of management activities in Chaharmahal and Bakhtiari Province. ©JASEM

Research paper thumbnail of Preparation and Characterization of Bionanocomposites Based on Benzylated Wheat Straw and Nanoclay

Journal of Polymers and the Environment, 2017

Thermal studies confirmed the thermoplasticity of the samples, while the addition of up to 5% nan... more Thermal studies confirmed the thermoplasticity of the samples, while the addition of up to 5% nanoclay showed the increase in crystallization, T g and T m. Nanoclay also can retard thermal decomposition process. The presence of nanoclay improved all mechanical properties except the elongation at break. Nanocomposite with 5% nanoclay showed minimum water absorption and highest hydrophobicity comparing to other samples. This novel bionanocomposite could be a suitable alternative for replacing oil-based plastics in biomembranes and bioseparation processes.

Research paper thumbnail of Dynamic simulation of urban expansion through a CA-Markov model Case study: Hyrcanian region, Gilan, Iran

European Journal of Remote Sensing, 2016

Urban sprawl has become a remarkable feature in urban development, especially in developing count... more Urban sprawl has become a remarkable feature in urban development, especially in developing countries, in the last decades. To face this phenomenon, it is required to first forecast auto-spreading orientation rural areas over time in order to avoid shapeless urban growth. Although GIS/RS and CA-Markov models are applied to study urban growth patterns the world over, very few studies have applied these methods to examine the urban growth of Iran. A major land use change is detected here from 1989 to 2013. In this study the future sprawl of this province is forecasted for target years of 2025 and 2037 through a simulation. The results predict an alarming increase in urban development for the target years of 2025 and 2037, with an expansion is predicted to develop of 11510 and 18320 ha, respectively. In sum, this model is an efficient tool for the support of urban planning decisions and facilitates the process of sustainable urban development providing decisionmakers.

Research paper thumbnail of Dynamic simulation of urban expansion based on cellular automata and logistic regression model: Case study of Hyrcanian region of Iran

Sciprints, 2016

Although, promotion of urbanization culture in recent decades has made inevitable development of ... more Although, promotion of urbanization culture in recent decades has made inevitable development of cities in the world, however, the development can be guided in a direction that leave, to the extent possible, minimum socioeconomic and environmental impacts. For this, it is required to first forecast auto-spreading orientation of cities and suburbs in rural areas over time and then avoid shapeless growth of cities. This paper is an attempt to develop a dynamic hybrid model based on logistic regression (LR), Markov chain (MC), and cellular automata (CA) for prediction of future urban sprawl in fast-growing cities. The model was developed using 12 widely-used urban development criteria, whose significant coefficient was determined by logistic regression, and validated by relative operating characteristic (ROC) analysis. The validated model was run in Guilan, a tourist province in northern Iran with a very high rate of urban development. For this, changes in the area of urban land use we...

Research paper thumbnail of Investigating urban sprawl metrics and dynamics using RS and GIS case study: Gilan province, IRAN

2011 Joint Urban Remote Sensing Event, 2011

Urban sprawl, meaning low density and inefficient development around cities, occurs as a result o... more Urban sprawl, meaning low density and inefficient development around cities, occurs as a result of population explosion and high immigration rate. Urban sprawl results in changes in land use and the loss of agricultural lands and open spaces around cities. In Iran, which has a high rate of urbanization, urban sprawl is considered as one of the main factors transforming