Titanium dioxide nanoparticles have the unique properties of optic character and can be used in t... more Titanium dioxide nanoparticles have the unique properties of optic character and can be used in textile region. In this paper, the application status, prepare methods of physical method and chemical method, application method of exhaustion, pad-dry-cure and coating methods in textile modification of titanium dioxide nanoparticles are introduced. The prepared mechanisms are then analysis. It is shown that titanium dioxide nanoparticles can provide ultraviolet-resistance fuction, anti-bacterial activity, infrared effects, anti-static eclectricity function, anti-aging function and Self-cleaning effect in textile modification. As last, the existed problems and tend to development are analysized.
Evaluation and assessment of dust model results is of primary importance to get a better understa... more Evaluation and assessment of dust model results is of primary importance to get a better understanding of the models' performance, and therefore, enhancing the models' set up and structure. Besides some SDS-WAS dust models, two other high resolution WRF-Chem runs have been carried out for two dust episodes over the West Asia with alterations in the soil erodibility fields as one of the primary criteria of dust sources. The main aim of this article was to investigate the high resolution WRF-Chem modeling with the default and altered soil erosion, against the WMO SDS-WAS models. In this paper we investigated the application of WRF-Chem dust modeling for the region of interest (Iran), which cannot be seen entirely by the SDS-WAS models' domains. Comparisons of modelled dust surface concentrations with ground based measurements on 8 air quality stations show that the high resolution WRF-Chem could more or less lead to better predictions. For some cases, the results of the hi...
To study the Iran precipitation anomaly in September to November of 2016 and its probable connect... more To study the Iran precipitation anomaly in September to November of 2016 and its probable connection with ENSO (El Nino-Southern Oscillation). This period with similar cases in the previous 55 years (1964, 1983, and 1995 according to forecasting center of NOAA) was investigated. In all cases, ENSO changed from strong El-Nino to weak La-Nina after a very brief neutral period. In the following, observational data from 44 synoptic stations of Iran, which have long term statistics about 30 years duration, have been used; and also NCEP-NCAR (National Centers for Environmental Prediction/National Center for Atmospheric Research) reanalysis data, which include mean sea level pressure, geopotential height at 850, 500 and 300 hPa, wind and humidity at 850 hPa and also 300 hPa zonal and meridional wind have been used. Results show that, along the establishment of weak La Nina after strong El Nino, autumn rainfall decreases strongly so that severe negative precipitation anomaly (up to 100%) ha...
To study the Iran precipitation anomaly in September to November of 2016 and its probable connect... more To study the Iran precipitation anomaly in September to November of 2016 and its probable connection with ENSO (El Nino-Southern Oscillation). This period with similar cases in the previous 55 years (1964, 1983, and 1995 according to forecasting center of NOAA) was investigated. In all cases, ENSO changed from strong El-Nino to weak La-Nina after a very brief neutral period. In the following, observational data from 44 synoptic stations of Iran, which have long term statistics about 30 years duration, have been used; and also NCEP-NCAR (National Centers for Environmental Prediction/National Center for Atmospheric Research) reanalysis data, which include mean sea level pressure, geopotential height at 850, 500 and 300 hPa, wind and humidity at 850 hPa and also 300 hPa zonal and meridional wind have been used. Results show that, along the establishment of weak La Nina after strong El Nino, autumn rainfall decreases strongly so that severe negative precipitation anomaly (up to 100%) ha...
Heavy precipitation plays a significant role in arid and semi-arid regions of Iran. In order to u... more Heavy precipitation plays a significant role in arid and semi-arid regions of Iran. In order to understand the effect of blocking high system on rainfalls in northwest Iran during 25 - 28 October 2008, meteorological conditions including pressure, wind fields and temperature at multiple levels of the atmosphere were analyzed. Sea level pressure, the 1000-500 hPa thickness, perceptible water, relative humidity, temperature, u and v components of wind at 850 hPa, geopotential height at 500 hPa and relative vorticity of u and v were obtained from the National Centers for Environmental Prediction/National Center for Atmospheric Research (NCEP/NCAR) re-analysis dataset. Location and displacement of the atmospheric systems such as cyclones, anticyclones, fronts and wind fields were identified using synoptic charts. Daily rainfall data obtained over 50 weather stations. Results indicate that the existence of a blocking high over the northern portion of the Caspian Sea caused the activity ...
A squall line was recorded in Dayyer port over southwest of Iran, on 19 Mar 2017. In the present ... more A squall line was recorded in Dayyer port over southwest of Iran, on 19 Mar 2017. In the present paper, we have simulated the characteristic features associated with the squall line by Weather Research and Forecasting (WRF) model using five different microphysics (MP) schemes. For validating the simulated characteristics of the squall line, the latitude-height and longitude-height cross section reflectivity and precipitation value derived from observed reflectivity gathered by Doppler Weather Radar at Bushehr, synoptic weather station data at Dayyer port along with NCEP-NCAR and ERA-INTERIM reanalyzes data were used. To verify the simulated precipitation, the Fractions Skill Score (FSS) curve was calculated. Examining the simulation results for geopotential and sea level pressure show that the model simulations using different MP schemes, agree well with the verifying reanalyzes. Also, the spatial rainfall distribution of simulations and verifying observations did not show big diffe...
The change in forest cover plays a vital role in ecosystem services, atmospheric carbon balance, ... more The change in forest cover plays a vital role in ecosystem services, atmospheric carbon balance, and, thus, climate change. In this study, land use maps for the periods 1984 and 2012, derived from Landsat TM satellite imagery, were used. The goal of this study is comparison of three procedures of artificial neural network, logistic regression, and similarity weighted instance-based learning (SIM Weight) to predict spatial trend of forest cover change. The SimWeight considers the nearest instances in the variable space, which are computed based on past changes and the relative importance of the driving variables. The LogReg approach, on the other hand, is a type of generalized linear model that assumes that the current land use pattern reflects the processes of land use in the past. Artificial Neural Network is a nonparametric algorithm that is capable of fitting complex nonlinear functions to find the relations between past changes and their driving variables. Such approaches are ex...
Dust storms are natural hazards and affect many countries of the world especially the Middle East... more Dust storms are natural hazards and affect many countries of the world especially the Middle East. So in order to prevent dustdamages, to a certain extent, dust prediction and simulation should be deemed vital. For this purpose, regional-scale simulations are compared in this study, by means of WRF-Chem using five emission schemes. Based on the model outputs, satellite imagery, and backtrajectory analysis, it is shown that the dust particles transfer from Iran into Iraq. Furthermore, over Ilam province (south-west of Iran), the comparison of the surface concentration from different model outputs shows the results depend on the considered dust emission scheme. In general, it can be stated that choosing different dust emission schemes has a significant effect on the output of the model. Shao schemes have high sensitivity to the land surface data and the low resolution of this data in the Middle East causes some errors in dust flux simulation in the region. AFWA and GOCART schemes show...
The significance of conserving biodiversity in Australia, including native fauna and flora specie... more The significance of conserving biodiversity in Australia, including native fauna and flora species, is increasingly being recognised by the scientific community. Ecological connectivity assists with theis conservation. Ecological connectivity is associated with the key features of the landscape which facilitate the movement of species and in turn can enhance the biodiversity. While ecological connectivity has been studied frequently in the Greater Melbourne area to meet various objectives, there is still lacking a comprehensive and effective approach to investigate the ecological connectivity for all the species which are influenced by the changes in this urban area. This paper presents a multi-species approach for investigating ecological connectivity in Metropolitan Melbourne. The paper begins by exploring the significance of ecological connectivity in urban areas. The focus is then on the various approaches for addressing ecological connectivity to establish the fundamentals of the new approach. Modeling of habitat networks based on graph theory, for selected target species, is at the core of the research. The connectivity analysis for each graph model, the overlaying of the graph models and the detection of gaps in the networks, the restoration proposals for the gaps in the networks are different step towards a comprehensive analysis of the ecological connectivity. The resulting approach is believed to lead to a more practical and integrated study of connectivity for the planning of future Melbourne landscapes in order to support biodiversity.
Abstract
Green Infrastructure Development (GID) is a well-known method for dealing with runoff c... more Abstract
Green Infrastructure Development (GID) is a well-known method for dealing with runoff control and mitigating the urbanization effects on hydrological cycles. Other than hydrological factors, GID is obviously intertwined with many socioeconomic, environmental, and aesthetic considerations, constraints, and drivers. Human perceptions are valuable resources to distinguish these considerations and can be derived from unstructured information using a systematic method. The purpose of this article is to exhibit how the perceptions of stakeholders were derived in Tehran for a conceptual model of green infrastructure development. For this, we applied a combination of Soft Systems Methodology (SSM) and Interpretive Structural Modeling (ISM). The results revealed the main stakeholders, their relationships and responsibility, main obstacles for GID, and the conceptual system of activities for GIs development in Tehran. Based on the results, actions for improving the current situation were proposed and categorized in 10 main components including: further research, regulation, financial support, negotiation with stakeholders, evaluation and monitoring, enhancing stakeholders' interactions, providing comprehensive database, acculturalization, managerial reform, and training of stakeholders. ISM was performed to obtain a visible, ordered, and well-defined model of the relationships among the main components. The results revealed that the item “further research” plays the main role in actualizing three components “regulation,” “financial support,” and “negotiation with stakeholders” in the process of GID in Tehran while the realization of the rest of the components depends on the former three components.
A new method to quantify, monitore and assess ecological structures and functions is the applicat... more A new method to quantify, monitore and assess ecological structures and functions is the application of graph theory. In ecology, this theory demonstrates its suitable application in assessment of ecological connectivity. Connectivity is the structural attribute of landscape which facilitates the species movement among their habitats. Using graph theory, this paper aims to assess the connectivity of habitats within an urban landscape. Therefore, firstly the graph fundamentals, the graph-based connectivity studies, various methods, software and graph-based metrics for graph modeling were discussed. Then using this theory, the habitat network of Varanus varius was modelled within the Greater Melbourne as a weighted network incorporating nodes and active links. The connectivity of adjacent habitats was assessed using pij and flux metrics. The overall connectivity of the network was assed using DCflux Eventually the nodes were prioritized based on their importance for maintenance of net...
Titanium dioxide nanoparticles have the unique properties of optic character and can be used in t... more Titanium dioxide nanoparticles have the unique properties of optic character and can be used in textile region. In this paper, the application status, prepare methods of physical method and chemical method, application method of exhaustion, pad-dry-cure and coating methods in textile modification of titanium dioxide nanoparticles are introduced. The prepared mechanisms are then analysis. It is shown that titanium dioxide nanoparticles can provide ultraviolet-resistance fuction, anti-bacterial activity, infrared effects, anti-static eclectricity function, anti-aging function and Self-cleaning effect in textile modification. As last, the existed problems and tend to development are analysized.
Evaluation and assessment of dust model results is of primary importance to get a better understa... more Evaluation and assessment of dust model results is of primary importance to get a better understanding of the models' performance, and therefore, enhancing the models' set up and structure. Besides some SDS-WAS dust models, two other high resolution WRF-Chem runs have been carried out for two dust episodes over the West Asia with alterations in the soil erodibility fields as one of the primary criteria of dust sources. The main aim of this article was to investigate the high resolution WRF-Chem modeling with the default and altered soil erosion, against the WMO SDS-WAS models. In this paper we investigated the application of WRF-Chem dust modeling for the region of interest (Iran), which cannot be seen entirely by the SDS-WAS models' domains. Comparisons of modelled dust surface concentrations with ground based measurements on 8 air quality stations show that the high resolution WRF-Chem could more or less lead to better predictions. For some cases, the results of the hi...
To study the Iran precipitation anomaly in September to November of 2016 and its probable connect... more To study the Iran precipitation anomaly in September to November of 2016 and its probable connection with ENSO (El Nino-Southern Oscillation). This period with similar cases in the previous 55 years (1964, 1983, and 1995 according to forecasting center of NOAA) was investigated. In all cases, ENSO changed from strong El-Nino to weak La-Nina after a very brief neutral period. In the following, observational data from 44 synoptic stations of Iran, which have long term statistics about 30 years duration, have been used; and also NCEP-NCAR (National Centers for Environmental Prediction/National Center for Atmospheric Research) reanalysis data, which include mean sea level pressure, geopotential height at 850, 500 and 300 hPa, wind and humidity at 850 hPa and also 300 hPa zonal and meridional wind have been used. Results show that, along the establishment of weak La Nina after strong El Nino, autumn rainfall decreases strongly so that severe negative precipitation anomaly (up to 100%) ha...
To study the Iran precipitation anomaly in September to November of 2016 and its probable connect... more To study the Iran precipitation anomaly in September to November of 2016 and its probable connection with ENSO (El Nino-Southern Oscillation). This period with similar cases in the previous 55 years (1964, 1983, and 1995 according to forecasting center of NOAA) was investigated. In all cases, ENSO changed from strong El-Nino to weak La-Nina after a very brief neutral period. In the following, observational data from 44 synoptic stations of Iran, which have long term statistics about 30 years duration, have been used; and also NCEP-NCAR (National Centers for Environmental Prediction/National Center for Atmospheric Research) reanalysis data, which include mean sea level pressure, geopotential height at 850, 500 and 300 hPa, wind and humidity at 850 hPa and also 300 hPa zonal and meridional wind have been used. Results show that, along the establishment of weak La Nina after strong El Nino, autumn rainfall decreases strongly so that severe negative precipitation anomaly (up to 100%) ha...
Heavy precipitation plays a significant role in arid and semi-arid regions of Iran. In order to u... more Heavy precipitation plays a significant role in arid and semi-arid regions of Iran. In order to understand the effect of blocking high system on rainfalls in northwest Iran during 25 - 28 October 2008, meteorological conditions including pressure, wind fields and temperature at multiple levels of the atmosphere were analyzed. Sea level pressure, the 1000-500 hPa thickness, perceptible water, relative humidity, temperature, u and v components of wind at 850 hPa, geopotential height at 500 hPa and relative vorticity of u and v were obtained from the National Centers for Environmental Prediction/National Center for Atmospheric Research (NCEP/NCAR) re-analysis dataset. Location and displacement of the atmospheric systems such as cyclones, anticyclones, fronts and wind fields were identified using synoptic charts. Daily rainfall data obtained over 50 weather stations. Results indicate that the existence of a blocking high over the northern portion of the Caspian Sea caused the activity ...
A squall line was recorded in Dayyer port over southwest of Iran, on 19 Mar 2017. In the present ... more A squall line was recorded in Dayyer port over southwest of Iran, on 19 Mar 2017. In the present paper, we have simulated the characteristic features associated with the squall line by Weather Research and Forecasting (WRF) model using five different microphysics (MP) schemes. For validating the simulated characteristics of the squall line, the latitude-height and longitude-height cross section reflectivity and precipitation value derived from observed reflectivity gathered by Doppler Weather Radar at Bushehr, synoptic weather station data at Dayyer port along with NCEP-NCAR and ERA-INTERIM reanalyzes data were used. To verify the simulated precipitation, the Fractions Skill Score (FSS) curve was calculated. Examining the simulation results for geopotential and sea level pressure show that the model simulations using different MP schemes, agree well with the verifying reanalyzes. Also, the spatial rainfall distribution of simulations and verifying observations did not show big diffe...
The change in forest cover plays a vital role in ecosystem services, atmospheric carbon balance, ... more The change in forest cover plays a vital role in ecosystem services, atmospheric carbon balance, and, thus, climate change. In this study, land use maps for the periods 1984 and 2012, derived from Landsat TM satellite imagery, were used. The goal of this study is comparison of three procedures of artificial neural network, logistic regression, and similarity weighted instance-based learning (SIM Weight) to predict spatial trend of forest cover change. The SimWeight considers the nearest instances in the variable space, which are computed based on past changes and the relative importance of the driving variables. The LogReg approach, on the other hand, is a type of generalized linear model that assumes that the current land use pattern reflects the processes of land use in the past. Artificial Neural Network is a nonparametric algorithm that is capable of fitting complex nonlinear functions to find the relations between past changes and their driving variables. Such approaches are ex...
Dust storms are natural hazards and affect many countries of the world especially the Middle East... more Dust storms are natural hazards and affect many countries of the world especially the Middle East. So in order to prevent dustdamages, to a certain extent, dust prediction and simulation should be deemed vital. For this purpose, regional-scale simulations are compared in this study, by means of WRF-Chem using five emission schemes. Based on the model outputs, satellite imagery, and backtrajectory analysis, it is shown that the dust particles transfer from Iran into Iraq. Furthermore, over Ilam province (south-west of Iran), the comparison of the surface concentration from different model outputs shows the results depend on the considered dust emission scheme. In general, it can be stated that choosing different dust emission schemes has a significant effect on the output of the model. Shao schemes have high sensitivity to the land surface data and the low resolution of this data in the Middle East causes some errors in dust flux simulation in the region. AFWA and GOCART schemes show...
The significance of conserving biodiversity in Australia, including native fauna and flora specie... more The significance of conserving biodiversity in Australia, including native fauna and flora species, is increasingly being recognised by the scientific community. Ecological connectivity assists with theis conservation. Ecological connectivity is associated with the key features of the landscape which facilitate the movement of species and in turn can enhance the biodiversity. While ecological connectivity has been studied frequently in the Greater Melbourne area to meet various objectives, there is still lacking a comprehensive and effective approach to investigate the ecological connectivity for all the species which are influenced by the changes in this urban area. This paper presents a multi-species approach for investigating ecological connectivity in Metropolitan Melbourne. The paper begins by exploring the significance of ecological connectivity in urban areas. The focus is then on the various approaches for addressing ecological connectivity to establish the fundamentals of the new approach. Modeling of habitat networks based on graph theory, for selected target species, is at the core of the research. The connectivity analysis for each graph model, the overlaying of the graph models and the detection of gaps in the networks, the restoration proposals for the gaps in the networks are different step towards a comprehensive analysis of the ecological connectivity. The resulting approach is believed to lead to a more practical and integrated study of connectivity for the planning of future Melbourne landscapes in order to support biodiversity.
Abstract
Green Infrastructure Development (GID) is a well-known method for dealing with runoff c... more Abstract
Green Infrastructure Development (GID) is a well-known method for dealing with runoff control and mitigating the urbanization effects on hydrological cycles. Other than hydrological factors, GID is obviously intertwined with many socioeconomic, environmental, and aesthetic considerations, constraints, and drivers. Human perceptions are valuable resources to distinguish these considerations and can be derived from unstructured information using a systematic method. The purpose of this article is to exhibit how the perceptions of stakeholders were derived in Tehran for a conceptual model of green infrastructure development. For this, we applied a combination of Soft Systems Methodology (SSM) and Interpretive Structural Modeling (ISM). The results revealed the main stakeholders, their relationships and responsibility, main obstacles for GID, and the conceptual system of activities for GIs development in Tehran. Based on the results, actions for improving the current situation were proposed and categorized in 10 main components including: further research, regulation, financial support, negotiation with stakeholders, evaluation and monitoring, enhancing stakeholders' interactions, providing comprehensive database, acculturalization, managerial reform, and training of stakeholders. ISM was performed to obtain a visible, ordered, and well-defined model of the relationships among the main components. The results revealed that the item “further research” plays the main role in actualizing three components “regulation,” “financial support,” and “negotiation with stakeholders” in the process of GID in Tehran while the realization of the rest of the components depends on the former three components.
A new method to quantify, monitore and assess ecological structures and functions is the applicat... more A new method to quantify, monitore and assess ecological structures and functions is the application of graph theory. In ecology, this theory demonstrates its suitable application in assessment of ecological connectivity. Connectivity is the structural attribute of landscape which facilitates the species movement among their habitats. Using graph theory, this paper aims to assess the connectivity of habitats within an urban landscape. Therefore, firstly the graph fundamentals, the graph-based connectivity studies, various methods, software and graph-based metrics for graph modeling were discussed. Then using this theory, the habitat network of Varanus varius was modelled within the Greater Melbourne as a weighted network incorporating nodes and active links. The connectivity of adjacent habitats was assessed using pij and flux metrics. The overall connectivity of the network was assed using DCflux Eventually the nodes were prioritized based on their importance for maintenance of net...
Graphical abstract Abstract Landfills are the common method of waste disposal. A closed landfill ... more Graphical abstract Abstract Landfills are the common method of waste disposal. A closed landfill site can be an eyesore land and cause environmental hazardous impacts on surrounding areas. A sustainable solution for redevelopment of a closed landfill site, returns the land to an attractive and beneficial after-use. This study aim to identify potential sustainable solutions and factors in the redevelopment of closed landfill sites. The paper critically reviews the literature regarding vital understanding of the redevelopment process. The study also analyzed the successful landfill redevelopment projects in a wide range of time and locations to suggest the best end-use option. Additionally, the study offers an approach for integrating the social, economic and environmental benefits through the sustainable redevelopment solution contributing to the universal sustainable development and green built environment.
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Papers by Ali Reza Mikaeili Tabrizi
Green Infrastructure Development (GID) is a well-known method for dealing with runoff control and mitigating the urbanization effects on hydrological cycles. Other than hydrological factors, GID is obviously intertwined with many socioeconomic, environmental, and aesthetic considerations, constraints, and drivers. Human perceptions are valuable resources to distinguish these considerations and can be derived from unstructured information using a systematic method. The purpose of this article is to exhibit how the perceptions of stakeholders were derived in Tehran for a conceptual model of green infrastructure development. For this, we applied a combination of Soft Systems Methodology (SSM) and Interpretive Structural Modeling (ISM). The results revealed the main stakeholders, their relationships and responsibility, main obstacles for GID, and the conceptual system of activities for GIs development in Tehran. Based on the results, actions for improving the current situation were proposed and categorized in 10 main components including: further research, regulation, financial support, negotiation with stakeholders, evaluation and monitoring, enhancing stakeholders' interactions, providing comprehensive database, acculturalization, managerial reform, and training of stakeholders. ISM was performed to obtain a visible, ordered, and well-defined model of the relationships among the main components. The results revealed that the item “further research” plays the main role in actualizing three components “regulation,” “financial support,” and “negotiation with stakeholders” in the process of GID in Tehran while the realization of the rest of the components depends on the former three components.
Green Infrastructure Development (GID) is a well-known method for dealing with runoff control and mitigating the urbanization effects on hydrological cycles. Other than hydrological factors, GID is obviously intertwined with many socioeconomic, environmental, and aesthetic considerations, constraints, and drivers. Human perceptions are valuable resources to distinguish these considerations and can be derived from unstructured information using a systematic method. The purpose of this article is to exhibit how the perceptions of stakeholders were derived in Tehran for a conceptual model of green infrastructure development. For this, we applied a combination of Soft Systems Methodology (SSM) and Interpretive Structural Modeling (ISM). The results revealed the main stakeholders, their relationships and responsibility, main obstacles for GID, and the conceptual system of activities for GIs development in Tehran. Based on the results, actions for improving the current situation were proposed and categorized in 10 main components including: further research, regulation, financial support, negotiation with stakeholders, evaluation and monitoring, enhancing stakeholders' interactions, providing comprehensive database, acculturalization, managerial reform, and training of stakeholders. ISM was performed to obtain a visible, ordered, and well-defined model of the relationships among the main components. The results revealed that the item “further research” plays the main role in actualizing three components “regulation,” “financial support,” and “negotiation with stakeholders” in the process of GID in Tehran while the realization of the rest of the components depends on the former three components.