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Open Access Article
1 - Comparative impact measurement of polytechnics on industry and technology a Bibliometrics study
abdolsamad keramatfar Hamzehali Nourmohammadi مهناز رحیمیIntroduction and goal: universities spend large sums of money and resources on scientific research which short terms results are often difficult to predict, medium term achievements are uncertain, and long term returns may prove disappointing. In a policy making view, t MoreIntroduction and goal: universities spend large sums of money and resources on scientific research which short terms results are often difficult to predict, medium term achievements are uncertain, and long term returns may prove disappointing. In a policy making view, these expenses should be justified for society that are the real investors. The goal of this paper is to investigate comparative impact of Iran’s polytechnics on industry and technology. Method: This paper use Bibliometrics methods and indicators. 17 polytechnics are evaluated based on their patent’s citations to scientific articles, innovative knowledge, technological impacts, Joint research publications with industry and number of patents in 4 patents databases including General Office of Industrial Property patent database, Us patent and EPO. Findings: Among Iran’s polytechnics and based on innovative knowledge, number of Us patents citations and University-industry research cooperation Sharif university is first. In technological impacts Isfahan University of Technology is first and this university is jointly first with K.N.Toosi University of Technology based on PCT patents. Amirkabir University based on intramural patents is in first place. Iran’s polytechnics haven’t good position relative to world class universities. Manuscript profile -
Open Access Article
2 - Study of Land Use Change Using Geographic Information Systems and Remote Sensing Techniques
Mehrdad Khanmohammadi Maryam Haghighi khomami Mohammad panahandeh Mahsa Abdoli LaktasaraeiIndeed, protected areas, national parks and biosphere reserves in general, are the natural heritage of each country. Therefore, knowledge of their changes plays an essential role in management of these areas. Remote sensing is one of the most advanced and effective tech MoreIndeed, protected areas, national parks and biosphere reserves in general, are the natural heritage of each country. Therefore, knowledge of their changes plays an essential role in management of these areas. Remote sensing is one of the most advanced and effective technology for monitoring environmental changes and resource management. The purpose of this research is to detect the land use /cover changes in Bojagh National Park in Guilan province during 2000-2017. For this purpose, the images of ETM+ sensor from the landsat 7 were taken in the year 2000 and the images of OLI sensor from the landsat 8 were taken in the year 2017. After applying the necessary preprocessing on the images, the training points were selected for each user class in sufficient number and with appropriate processing then, the land use / cover map was produced using the supervised classification method with maximum likelihood algorithm. Using the Overall accuracy test and Kappa coefficients, accuracy of the produced maps was determined. The results of the study indicated that the areas of the sea, grassland and the areas of the waterbody parts has decreased and the areas of the agricultural, marshland, man-made, woody and bare lands users show an increase during the study period. Manuscript profile -
Open Access Article
3 - Estimation of wheat area cultivation using Sentinel 2 satellite images (Case study: Sojasroud region, Khodabandeh city, Zanjan province)
Seyed Ahmad Seyed Ahmad Nadia Abbaszadeh Tehrani Milad JanalipourWheat is one of the strategic agricultural products which provides one of the most basic nutritional needs of human societies for Iran and the whole world. Having the right statistics and information of the lands under wheat cultivation and estimating the amount of thei MoreWheat is one of the strategic agricultural products which provides one of the most basic nutritional needs of human societies for Iran and the whole world. Having the right statistics and information of the lands under wheat cultivation and estimating the amount of their production in one crop year can help the planners of agriculture and industry to manage the production and consumption of the mentioned product as effectively as possible. One of the tools that can calculate the level of wheat cultivation in the shortest time and with low cost and appropriate accuracy is the science and technology of remote sensing. In the present study, using a supervised classification of images from several time of Sentinel 2, the area under wheat cultivation and its production rate for the 96-97 crop year has been estimated. Supervised classification with the overall accuracy of 80% and a kappa coefficient of 0.8 has acceptable and suitable results for the identification and separation of wheat from other agricultural crops. Manuscript profile -
Open Access Article
4 - Comparison of support vector machine and artificial neural network classification methods to produce landuse maps (Case study: Bojagh National Park)
Mahsa Abdoli Laktasaraei Maryam Haghighi khomamiNational parks and wildlife shelter are the most important natural heritages; therefore, knowing of quantitative and qualitative changes in their land use plays an essential role in the quality of these areas' management. various algorithms have been developed to classi MoreNational parks and wildlife shelter are the most important natural heritages; therefore, knowing of quantitative and qualitative changes in their land use plays an essential role in the quality of these areas' management. various algorithms have been developed to classify satellite imagery in remote sensing, selecting an appropriate classification algorithm is very important in achieving the accurate results. In this research, a more accurate algorithm was determined by comparing the classification accuracy of two artificial neural network and support vector machine algorithms, and it was used to examine the process of the land use changes. The present study was performed in Boujagh National Park, in the Guilan Province, during the years 2000 to 2017, using satellite imagery ETM and OLI of Landsat 7 and 8. The results of the research revealed that the support vector machine algorithm with overall accuracy and Kappa coefficient of 86.42 and 0.83 respectively for the year 2000 and, 90.65 and 0.88 for the year 2017, classified the satellite images more precisely, in comparison with the artificial neural network algorithm with overall accuracy and Kappa coefficient of 83.71 and 0.80 respectively for the year 2000 and overall accuracy and Kappa coefficient of 89.25 and 0.87 for the year 2017. Therefore, the land use maps of the support vector machine algorithm were used to determine the land use changes. The study of land use change by this method concluded that the areas of the waterbody, sea, grassland and agriculture have decreased and marshland, woody and bare lands classes showed an increase during the study period. Manuscript profile -
Open Access Article
5 - Urban Growth and Its Influencing Factors
The urbanization process and urban growth in different parts of the world result from the interconnected interactions between factors and various socio-economic, political, technological, geographical, cultural, global and local issues. Accordingly, identifying the driv MoreThe urbanization process and urban growth in different parts of the world result from the interconnected interactions between factors and various socio-economic, political, technological, geographical, cultural, global and local issues. Accordingly, identifying the driving and shaping factors of the growth of cities is vital for urban planning and sustainable development, especially in developing countries, which is used as a means of predicting future trends, controlling and guiding the growth of the city, organizing the future development of the city and eventually efficiently and purposefully managing the city. The main objective of this study is to identify the driving and shaping factors of the biophysical and socio-economic growth of Tehran metropolis. In order to achieve this goal, five main stages are taken into consideration, including the production of land use maps, land cover to study the land use spatial-temporal changes, land cover in Tehran and its surrounding areas using satellite images, identifying driving factors of urban growth using logistic regression, using a factor ecology approach to investigate the human factors effective on Tehran landscape, calculating spatial metrics for quantization of the structure and characteristics of the landscape pattern in Tehran metropolis using Fragstatas software and investigating the relationship between urban growth pattern and social areas using multivariate regression. The results indicate that the distance from the roads and the commercial center of Tehran in the period 2000 to 2014 is the most significant biophysical factor shaping the growth pattern of Tehran metropolis, and among the obtained five socioeconomic components, the population density and employment components have the most effect on urban growth pattern in Tehran metropolis. Manuscript profile -
Open Access Article
6 - Effects of Karoun Pipeline Transfer Projects on Creation or Expansion of Khouzestan Riverside Centers Using GIS & RS Technologies
Atefeh Bosak Hourie Aarabi Moghaddam zahra hejazizadeh meysam toulabi nejadThis study was carried out to investigate the impacts of Karoun water branches transference projects on creation or intensification of Khuzestan dust points. For this purpose, daily climatic parameters (temperature, precipitation, horizontal view, moist and wind) and re MoreThis study was carried out to investigate the impacts of Karoun water branches transference projects on creation or intensification of Khuzestan dust points. For this purpose, daily climatic parameters (temperature, precipitation, horizontal view, moist and wind) and required water debit for 9 synoptic and hydrometric stations within a 30-year statistical period were collected. Missing data were recovered and sorted by using Matlab,Minitab and Excel software. Also satellite data and images were used to study vegetation, soil moist and dust particles conditions in the specific area. According to the greenhouse gas procedures during 1985 to 2015, the studied period was broken into two periods, one before global warming (1985-1995) and the other after intensification of global warming (1996-2015). Then by using statistical methods and remote sensing the mentioned periods were investigated. The results from investigating long term debit of Karoun river showed that there is 171 m3/s decrease in second statistical period than the first one. During the second period, local dust has increased in comparison with the first period but vegetation index (NVDI) has 13% decrease. Also the vastness and value of soil moist in east of basin have increasing trend and the role of dam construction is evidently influential. This trend has been decreasing around Shadegan wetland in west of basin, as the result, with passing flows over this area, because of adherence reduction, soil particles disserve from the ground and cause most of the dust in Khuzestan and Karoun riverbasin. Manuscript profile -
Open Access Article
7 - Monitor the fountains using images Multi-spectrum satellite of Madis in the southwest of Iran
The purpose of this study is to monitor dust in the southwest of Iran using satellite data Is a lady In this research, we used the pictures of 2010-2015 years. According to the studies, it has been observed that various models have been presented in previous studies. MoreThe purpose of this study is to monitor dust in the southwest of Iran using satellite data Is a lady In this research, we used the pictures of 2010-2015 years. According to the studies, it has been observed that various models have been presented in previous studies. Then, using the HYSPLIT model, the prediction of the trajectory of dust motion has been addressed. To evaluate the performance of classifying methods, eight material images have been used between 2010-2015. By studying the results of classification of the images of the material using AOD educational data, one of the methods used in previous research of the backup algorithm in the southwestern part of Iran is more suitable than the other method Is. Then, using the HYSPLIT model, the dust trail of the southwestern region of Iran represents the external origin as the main source of this phenomenon in Iran. Manuscript profile -
Open Access Article
8 - Evaluation of coastal geomorphologic change in northern coast of Persian Gulf from Kangan Port to Ziyarat Estuary using remote sensing and GIS
hossein taghaviCoastal geomorphological changes in the short-term and long-term are observable in all coastal areas. The changes occur to reach the balance in this region. Aware of these changes is very important to geomorphologists, environmental planners to help them to solve coasta MoreCoastal geomorphological changes in the short-term and long-term are observable in all coastal areas. The changes occur to reach the balance in this region. Aware of these changes is very important to geomorphologists, environmental planners to help them to solve coastal problems. The purpose of this study is to assess the geomorphologic changes occurring in the region of coastal Bushehr Port Kangan place within the Ziarat estuary. In this study multi-temporal satellite images of Landsat were selected as the data base. The principal component analysis and fuzzy logic are used for monitoring and evaluating the geomorphological changes. Results of this research show that during the 21 year research period from 1986 to 2006 most important factor changing landforms and coastline in the region are changes water level of the Persian Gulf that cause to submerged about 46 square kilometers of the region's coastal zone land. The important part of this area is containing spits and low slope and delta. The result of this research can be used for infrastructure projects, port facilities, commercial and military activities. Manuscript profile -
Open Access Article
9 - The main effective factors on the mineralization of Sonajil porphyry-epithermal copper-gold deposit, using remote sensing, mineralogical and geochemical studies
Mohammad MaanijouIn order to identify the main effective factors in the Sonajil Cu-Au porphyry-epithermal deposit, remote sensing, mineralogical and geochemical studies were carried on the deposit. After removing vegetation and topographic features by Normalized Difference Vegetation I MoreIn order to identify the main effective factors in the Sonajil Cu-Au porphyry-epithermal deposit, remote sensing, mineralogical and geochemical studies were carried on the deposit. After removing vegetation and topographic features by Normalized Difference Vegetation Index (NDVI), solar radiance, instrumental errors and albedo effects by Log Residual (LR), Band Ratio (BR), False Color Composite (FCC), Principal Component Analysis (PCA) and Mixture-Tuned Matched-Filtering (MTMF) were used to reveal main alteration zones of the study area. The phyllic, advanced argillic and propylitic altered rocks were identified and the results were validated by field and mineralogical studies. Also, geochemical data showed microdiorite, and shoshonite composition and also post-orogenic tectonic setting of the Sonajil porphyry-copper deposits. Eventually, the faulting density, composition, and the depth of mineralization were the affecting factors on the Sonajil deposit mineralization. Manuscript profile -
Open Access Article
10 - Separating alteration units in the Takht-e-Gonbad district using via comparing two classification methods of Support vector machine and maximum likelihood,
Davoud Nazari neda mahvash mohammadi Adabi Mohammad Ghavidel-Syooki haniyeh kalaniSeparation of alteration units has an important role in exploration of ore deposits. In the past, classical methods were used for this purpose. Recently, the support vector machine (SVM), one of the most important data driven models, has been applied for geological purp MoreSeparation of alteration units has an important role in exploration of ore deposits. In the past, classical methods were used for this purpose. Recently, the support vector machine (SVM), one of the most important data driven models, has been applied for geological purpose. This algorithm is a useful learning system based on constrained optimization theory. In this study, the SVM algorithm with various kernels and maximum likelihood method were used to separate the alteration units of the Takht-e-Gonbad district situated in Chahar Gonbad sheet by using satellite images of the ASTER sensor. The results were analyzed and evaluated according to the field studies. Based on the achieved results and field studies, the SVM method with the RBF kernel function compared to other kernels and the maximum likelihood method had the highest accuracy (89.17%) and kappa coefficient (0.83). Thus, the SVM method for classification of alteration is more accurate compared to other discussed methods. Manuscript profile -
Open Access Article
11 - Comparative Study of the Analytical and Methodological Frameworks of Oil Studies and Politics
سعید میرترابیThis paper aims to show that, during the past four decades, the literature on Rentier State, contrary to popular opinion, has not been consistent, whether in content or in methodology. Based on their methodological framework, the studies have been classified into two d MoreThis paper aims to show that, during the past four decades, the literature on Rentier State, contrary to popular opinion, has not been consistent, whether in content or in methodology. Based on their methodological framework, the studies have been classified into two distinct types. The first generation of studies emerged in 1970s, but their failure at explaining the situation of oil-rich countries and clarifying the consequences of fall in oil incomes sever criticisms. The criticisms in connection with the first wave of the studies provided a ground to revise the methodology, and the way of conceptualizing foreign rents and their assessments. This resulted, particularly since 1990s, in the second wave of studies a wave that could be considered as revisionism. This approach brought new variables into the studies. It paid more attention to the historical background of oil-rich countries and the historical periods when oil incomes raised (with respect to the various stages of formation of the government and the regime in power). It focused on the interrelationship between oil rent and social and political condition of these countries, avoiding structural look to the oil rents. Some of the supporters of the new approach proposed new criteria for evaluation of oil incomes. This approach offered the possibility of more complex analyses, especially in the areas of political stability and democratic transition in the oil-rich countries, analyses that better explain different experiences of the oil-dependant states. Manuscript profile -
Open Access Article
12 - Integration of remote sensing and magnetometry methods for exploration of iron deposit in the Maragh district of Bandar e Charak
Reza Ahmadi Abdorreza Gharah Sheikh BayatIn the present research, to identify potential and existence of possible iron ore-bearing in the Maragh district of Bandar e Charak in Hormozgan province, first, remote sensing studies using Aster sensor data through ENVI were conducted. Afterward the preliminary explor MoreIn the present research, to identify potential and existence of possible iron ore-bearing in the Maragh district of Bandar e Charak in Hormozgan province, first, remote sensing studies using Aster sensor data through ENVI were conducted. Afterward the preliminary exploration of promised regions was performed by magnetometry method. Remote sensing operation of the region data comprises preprocessing sequences of geometric correction by image-to-image method and atmospheric correction as well as processing techniques containing false color composite, banding ratio, least square-fit, directed principal component analysis and finally supervised classification through spectral angle mapper method. Because of this process, alteration-zoning map associated with iron mineralization in the studied region was produced. Magnetic data was acquired in an area of approximately 11.2 km2 in 1913 measuring stations using a proton magnetometer. Geosoft Oasis montaj software was employed for processing operation and qualitative interpretation of magnetic data via applying various corrections and filters including reduce to pole, upward continuation up to the variety of elevations, low-pass filter, derivative filters containing total horizontal derivative and analytical signal. At the end, to investigate the trend of magnetic anomalies observed on the surface, determination of approximate shape of the deposit and estimation of its depth, 3-D inverse modeling of the data was carried out. The results of the research through integrating two methods of remote sensing and magnetometry with 3-D inverse modeling of magnetic data, reveal that Maragh district has a high potential from viewpoint of iron ore-bearing. The results of this research will be applied for all of the geosciences practitioner especially geologists and exploration engineers. Manuscript profile -
Open Access Article
13 - Identification of the Factors and Indicators of the Model of Quality Assessment of the Game Industry Services on the Cloud Platform
Mohammad Taghi Taghavifard mohamadali abaspourn today's world, one of the most important media and entertainment sectors is the gaming industry. The number of users of this type of games is constantly increasing and Businesses in this industry have grown dramatically. This has led to a dollars million turnover boos Moren today's world, one of the most important media and entertainment sectors is the gaming industry. The number of users of this type of games is constantly increasing and Businesses in this industry have grown dramatically. This has led to a dollars million turnover boost for developer companies of this kind of games. Therefore, the main aim of this study is to provide a model for measuring the quality of services on the cloud platform in the gaming industry. The present research is a developmental-applied objective and is a part of qualitative research. This research is also a survey research in terms of data gathering. In this study, 52 indicators were identified in 9 main dimensions after evaluating theoretical literature of the research and existing models and Delphi method for assessing the quality of the cloud computing services industry. The results of the research provide a comprehensive model for assessing the quality of cloud computing services industry services that can be used by industry and researchers. Manuscript profile -
Open Access Article
14 - studying of civil and moral responsibility in remote sensing
Abolhassan Mojtahed Soleimani Parviz Ziaeian Firoozabadi Simin Asadzadeh TaleiToday, the introduction of legal and ethical arguments in the field of remote sensing, given the widespread use of this science in many areas, is very necessary. Additionally, in many cases, we need maps or information that is derived from remote sensing Judgments and j MoreToday, the introduction of legal and ethical arguments in the field of remote sensing, given the widespread use of this science in many areas, is very necessary. Additionally, in many cases, we need maps or information that is derived from remote sensing Judgments and judgments are issued on the basis of this information. We also mentioned the specific features of remote sensing. We found that in this system See ethics because of the diversity of people involved in it has been difficult in the field of legal liability based on fault, because the elements are selected and far in remote sensing, this theory more acceptable course have models set up key elements that determine the fault, the The prediction of a loss, the rationality of the injured person, and the power of bargaining against the involved. Manuscript profile -
Open Access Article
15 - Ethical Assessment of Internal Armed Conflicts with a focus on the Statute of the International Criminal Court and the procedure of the former Yugoslav Court
mohsen amari Mahdi HatamiWar crimes are one of the most important examples of international crimes and, as a moral anomaly, are within the jurisdiction of the International Criminal Court. As long as it has been criminalized in Article 8 of the Statute of the International Criminal Court, it ha MoreWar crimes are one of the most important examples of international crimes and, as a moral anomaly, are within the jurisdiction of the International Criminal Court. As long as it has been criminalized in Article 8 of the Statute of the International Criminal Court, it has undergone a long process. In general, the Statute of the Court exceeded the limits of the customary international law on war conflicts in significant and perceptible cases and imposes new obligations on States Parties. In addition to the criminalization of certain acts related to the war in international armed conflicts, the crimes committed in conflicts within the countries have also been sanctioned. By 1949, International humanitarian law has not considered to internal armed conflicts, and up to 1977, no independent treaties were drawn up in this regard. It can also be found in the absence of a comprehensive definition of non-international armed conflicts. However, in the 1990s, The International Criminal Court for the former Yugoslavia defined a definition, while reflecting the custom of its time, influenced the development of the future custom. In this paper, The formation of resources and bases governing internal armed conflicts and its gradual and moral development will be assessed on the basis of humanitarian criteria by the library method and using fishing tools, and will show that the procedure of the Court The former Yugoslav penal code, followed by the drafting of the 1998 Statute of the International Criminal Court. And the inclusion of these crimes in the scope of war crimes has created and developed a great moral transformation in relation to the development of rights related to these conflicts. Manuscript profile -
Open Access Article
16 - Contrastive Analysis of Approaches and Frameworks in Evaluating Innovation
Seyed Nooroddin Daronkolaei Hoseynreza Alizadeh VlokolaeiThe literature existing in innovation evaluation can be studied in two ways: 1) innovation evaluation at company level 2) innovation evaluation at national level. Innovation evaluation at company level is useful to make decisions in allocation of resources for innovatio MoreThe literature existing in innovation evaluation can be studied in two ways: 1) innovation evaluation at company level 2) innovation evaluation at national level. Innovation evaluation at company level is useful to make decisions in allocation of resources for innovation activities, to choose the fields in which innovation is expected to produce high economical return, and also to manage innovation strategies inside the enterprises. At national level policymakers need the information acquired from innovation evaluation in studying the existing situation, future developments trend, getting feedback from positive and negative effects of the existing policies, and making appropriate policies. According to the literature related to the title of the study, we have tried to mention the similarities and differences of the studies done in innovation evaluation by contrastive analysis of them. In similarity section, innovation process and technological changes measurement are mentioned. Also in differences section the level of analysis and providing indicators for measuring all three fields of systematic process of innovation are mentioned. Manuscript profile -
Open Access Article
17 - The Effect of Government Financial Support on Innovation of Knowledge-Based Firms: Based on Iran Innovation Survey Data
parisa sattari mohammadsadegh khayyatian yazdi farhad panahifarIn today's world, the survival of every organization or company depends on its ability to compete with other organizations, and since innovation is one of the most important drivers of companies' competitiveness, is able to create dynamism, maintaining the survival of o MoreIn today's world, the survival of every organization or company depends on its ability to compete with other organizations, and since innovation is one of the most important drivers of companies' competitiveness, is able to create dynamism, maintaining the survival of organizations; On the other hand, one of the challenges for every organization to innovate is financing, and since governments around the world have programs to support the small and medium enterprises and knowledge-based, the purpose of this paper is investigating the impact of government financial supports on the innovation of knowledge-based firms. In order to analyze this issue, the data of Iran Innovation Survey from 2012 to 2014 has been used. The implementation of the National Innovation Survey Plan has been carried out by the Vice President for Science and Technology in order to promote innovative and technological capacities in the country and transfer to a knowledge-based economy. The number of knowledge-based firms in this period was 1300 firms, of which 306 firms were selected from a random sample. The method of the present study is modeling of structural equations based on variance. SPSS and PLS software were used to analyze the data. The research findings show that government financial support has a positive effect on the process, marketing, and organizational innovations of knowledge-based firms, while these conditions do not exist for product innovation. Manuscript profile -
Open Access Article
18 - Designing an agile organization performance measurement model: aninterpretive structural modeling approach(ISM)
روح الله رازینی عادل آذر مهدی محمدیWith the beginning of twenty-first century manufacturing organizations have experienced radical and strong changes. So they have moved to the new challenges.Organizations and enterprises to respond to these new challenges, chose a new production approach called agility. MoreWith the beginning of twenty-first century manufacturing organizations have experienced radical and strong changes. So they have moved to the new challenges.Organizations and enterprises to respond to these new challenges, chose a new production approach called agility.The requirements of this approach have affected on how to measure the performance of these organizations. In this research, using a literature review and extraction of performance measures from common and famous performance measurement models and also measures affecting performance measurement of agile organizations, first classify criteria using cognitive mapping methodology. Then, using the interpretive structural modeling for creating a model for performance measurement system of agile organizations. The results of the survay are derived in a model consist of 11 criteria and 8 level. Manuscript profile -
Open Access Article
19 - Strategic analysis of citizen satisfaction with service quality of Shiraz҆ urban parks by using multi criteria satisfaction analysis
The purpose of this research is to use of multi criteria satisfaction method for segment analysis citizen satisfaction with service quality of urban parks of Shiraz. The statistical population consists of all citizens that visiting urban parks of Shiraz and sample size MoreThe purpose of this research is to use of multi criteria satisfaction method for segment analysis citizen satisfaction with service quality of urban parks of Shiraz. The statistical population consists of all citizens that visiting urban parks of Shiraz and sample size is 384. Method of sampling is stratified random sampling method. The researcher-made questionnaire was used to measure the variables of study. The reliability of the questionnaire was determined using Cronbach’s alpha test (α=0.91). The face validity and factor analysis was considered as validity of research. The result showed that dimension of citizen satisfaction with service quality of Shiraz҆ urban parks are Aesthetic and visual aspects, Park amenities, facilities and services, Physical health and safety of park, Social and psychological safety and Dynamic management of the park. Also the most satisfaction level in related to Jannat park and the least satisfaction level in related to Koohpayeh. In other hand, action diagrams indicated municipal of Shiraz almost in all of satisfaction criteria has low performance those requiring immediate improvement efforts for removing these weak points. Manuscript profile -
Open Access Article
20 - A Fast Algorithm for Hyperspectral Image Analysis Using SVM and Spatial Dependency
H. Ghassemian Ahmad KeshavarzRecent significant development in sensor technology makes possible Earth observational remote sensing system with unprecedented spectral resolution and data dimensionality. The value of these new sensor systems lies in their ability to acquire a nearly complete optical MoreRecent significant development in sensor technology makes possible Earth observational remote sensing system with unprecedented spectral resolution and data dimensionality. The value of these new sensor systems lies in their ability to acquire a nearly complete optical spectrum for each pixel in the scene. Such imaging spectrometry now makes possible the acquisition of data in hundreds of spectral bands simultaneously, and it is called hyperspectral images. With the limited number of training samples of hyperspectral images, the classification of these images using conventional feature extraction algorithms (PCA, ICA, PP, DBFE, DAFE and Wavelet) is considered useless. In this paper a two stages classification algorithm is proposed, by fussing the spatial and spectral information. In the first stage the classes of each pixel and its eight neighbors are identified, using a classical classification algorithm. In the second stage two primary classes of a pixel and its neighbors are compared in each node of decision tree by a SVM. The proposed, binary tree SVM, takes advantage of both the efficient computation of the tree architecture and the high classification accuracy of SVM. The hyperspectral data set used in our experiments is a scene from Indiana’s Indian Pine by the AVIRIS sensor. The examples results show the problem of limited training samples can be mitigated using the proposed algorithm; moreover the computational time is significantly reduced. This suggests that binary tree SVM could be a promising tool for classifying hyperspectral images. Manuscript profile -
Open Access Article
21 - Wideband Spectrum Sensing in Cognitive Radio Networks by Using Improved Energy Detector
Y. Eghbali M. Ahmadian Attari H. HassaniIn cognitive radio networks, spectrum sensing is of a great importance in determining spectrum holes. In this paper, the impact of improved energy detector on the wideband spectrum sensing is considered for accurate detection of spectrum holes. For this end, wideband sp MoreIn cognitive radio networks, spectrum sensing is of a great importance in determining spectrum holes. In this paper, the impact of improved energy detector on the wideband spectrum sensing is considered for accurate detection of spectrum holes. For this end, wideband spectrum is sub channelized into equal non-overlapping sub-bands. Our main concern is to find the thresholds of the individual sub-bands simultaneously. By formulating the spectrum sensing problem, in terms of convex optimization one, we seek for maximizing the opportunistic aggregate throughput of cognitive users. In numerical simulation section, it is illustrated that using improved energy detector, the opportunistic aggregate throughput is improved significantly. Manuscript profile -
Open Access Article
22 - Joint Detection of Correlated OFDM Subchannels for Wideband Spectrum Sensing in Cognitive Radio Networks
B. Rassouli A. OlfatIn this paper, we consider the wideband spectrum sensing in which primary users use OFDM modulation. Pulse shape of each subchannel is non-ideal which results in the leakage of power among adjacent subchannels. This phenomenon makes the received energy of each subchanne MoreIn this paper, we consider the wideband spectrum sensing in which primary users use OFDM modulation. Pulse shape of each subchannel is non-ideal which results in the leakage of power among adjacent subchannels. This phenomenon makes the received energy of each subchannel (test statistic of energy detector) correlated with those of other subchannels. Therefore, in order to jointly detect the state of primary network subchannels, we propose a simple iterative method and we observe its performance improvements in comparison to the disjointed method (in which the detection of each subchannel state is independent of the detection of other s Manuscript profile -
Open Access Article
23 - Spatio-Temporal Prediction of Vegetation Dynamics Based on Remote Sensing Data Using Deep Learning
Elham Zangeneh H. Mashayekhi Saeed GharacheloUnderstanding and analyzing spatial-temporal data changes is very important in various applications, including the protection and development of natural resources. In the past studies, Markov process and comparison-based methods were mainly used to predict the changes o MoreUnderstanding and analyzing spatial-temporal data changes is very important in various applications, including the protection and development of natural resources. In the past studies, Markov process and comparison-based methods were mainly used to predict the changes of vegetation indices, whose accuracy still needs improvement. Although time series analysis has been used to predict some indices, the method to extract these indices from remote sensing data and model their sequences with deep learning is rarely observed. In this article, a method for predicting changes in plant indices based on deep learning is presented. The research data includes Landsat satellite images from 2000 to 2018, related to four seasons in the north and east of Shahrood city in Semnan province. The time span of the extracted images makes it possible to predict changes in vegetation cover. Vegetation indices extracted from the data set are NDVI, SAVI and RVI. After performing atmospheric corrections on the images, the desired indicators are extracted and then the data is converted into a time series. Finally, the modeling of the sequence of these data is performed by the Short-Long-Term Memory (LSTM) network. The results of the experiments show that the deep network is able to predict future values with high accuracy. The amount of the model error without additional data is 0.03 for the NDVI index, 0.02 for the SAVI index, and 0.06 for the RVI index. Manuscript profile -
Open Access Article
24 - Designing a Model for Evaluating the Key Competencies of Human Resources (Human Resources Managers of Yazd Province Executive Organizations)
fatemeh Bagheshahi Reza Rasouli MohammadReza DaraeiThe purpose of this study was to design a model for assessing key human resources competencies of Yazd executives. Accordingly, the study was mixed (quantitative – qualitative(Therefore, first, the synthesis method was used, then the Delphi technique was used to design MoreThe purpose of this study was to design a model for assessing key human resources competencies of Yazd executives. Accordingly, the study was mixed (quantitative – qualitative(Therefore, first, the synthesis method was used, then the Delphi technique was used to design the model, and finally, the quantitative method was used for validation. Due to the nature of the research, there are different sampling and sampling methods. The first part of the statistical population consists of all articles related to key human resource competencies, scientific documents and all specialists, academics and elites with relevant experience and expertise. The sample included 84 documents (45 internal sources and 39 external sources) selected by census method and in the second part 10 targeted individuals (saturation limit of 10 persons) using purposive sampling method were chosen. For the design of the sample, the statistical population includes experts who were selected by purposeful sampling method (31 persons saturation limit) and for statistical population validation including senior experts and human resources managers of provincial executive agencies including deputy. Manpower Development Management and Planning Organization, Governorate, Human Resources and Administrative Transformation Committee in the province with a bachelor's degree or higher and with at least 4 years of work related to 828 people. In this section, 267 persons were selected using simple random sampling. Semi-structured interviews and researcher-made questionnaires were used for data collection. Based on this, a questionnaire was prepared and then provided to the instructors and consultants and the questions were modified. The coefficient of agreement was 0.81 which was confirmed by 3 experts. The results showed that the components of key competencies of human resources in executive systems consist of 4 components including individual characteristics (36 indices), knowledge (16 indices), skills (23 indices) and value (36 indices( In the last step, using structural equation modeling, model validation was performed. The results indicate that the questionnaire data can be reduced to a number of underlying and fundamental factors. And the result of Bartlett test showed that the correlation matrix is not a single matrix and the same matrix and finally 4 factors (components) have higher than one specific value. These components include 4 components including individual characteristics, knowledge, skills and values. Manuscript profile -
Open Access Article
25 -
Reza Ahmadi abdoreza Gharah-Sheikh-Bayat -
Open Access Article
26 - Using hyperion hyperpectral data and field spectrometry for identification of hydrocarbon leakagesvia VISA-SCM combined methodology and spatial data mining
Mohammad حمزه علی درویش بلورانی سید کاظم علوی پناه فروغ بیک حسین نصیریThe hydrocarbon seepages theory puts forward a cause and effect relation ship between the oil and gas reservoir s and the specific surface anomalies which are basically related to hydrocarbon leakages as well as their related alterations. Hence,the s MoreThe hydrocarbon seepages theory puts forward a cause and effect relation ship between the oil and gas reservoir s and the specific surface anomalies which are basically related to hydrocarbon leakages as well as their related alterations. Hence,the spectral reflectance of the hydrocarbons and their linked mineral alterntions produce credible pieces of evidence for oil and gas ex ploration .Hyperion images of EO-1 satellite was used in this study for identifying the oil seepages and their relevant alterations. After collecting the required data,the images under went the needed preprocessing. In order to recognize the oil seepages, these corrected data along with field-sampled spectrometric ones were employed. Then, VISA and SCM combined model was applied to indirectly identify the hydrocarbon seepages . Moreover, two hydrocarbon indexes were developed for direct recognition of the hydrocarbon seeps using Hyperion images. The finding indicate that the two mentioned techniques are efficacious for the purpose of the study at hand Manuscript profile -
Open Access Article
27 - Physiochemical characteristics of oOre-bearing fluids for celestite occurrence in the Zagros fold-thrust belt: using microthermometry studies
رضوانه حمیدی Hojjat Ollah Safari مهاسا روستاییOilgocene-Miocene celestite occurrences are observed across the carbonate-evaporite formations of Asmari and Gachsaran in the Zagros fold - thrust belt. The aim of this research is the study of fluid inclusions in our celestite deposits (Tortab, Tarak, Likak and Babamoh MoreOilgocene-Miocene celestite occurrences are observed across the carbonate-evaporite formations of Asmari and Gachsaran in the Zagros fold - thrust belt. The aim of this research is the study of fluid inclusions in our celestite deposits (Tortab, Tarak, Likak and Babamohamad) to reveal the nature of ore-forming fluids. Abundant structures including: geodic and vein-like structures as open-space filling along with replacement textures like mosaic and vein-like in a carbonate matrix are present. Moreover, celestite, calcite, gypsum and anhydrite are observed as the major minerals in this deposits. Based on petrographic studies, 5 groups of fluid inclusions were recognised, which are categorized as: Liquid mono phase (L), vapour mono phase (V), liquid-rich two phase (LV), vapor-rich two phase (VL) and multi-phase fluids (LVS). The results obtained from the study of microthermometry data show 134.3 to 291.8°C as homogenisation temperatures and salinities of 2.5-18.17 wt%, NaCl equ, all are involved in forming celestite. Based on the results of microthermometry data, it can be deduced that formation mechanism of celestite is resulted from reaction between fluid and rocks of the area. Moreover, tectonic activities such as uplift and diagenesis of beds along with dissolution of minerals have caused release of strontium in the fluids responsible for ore-forming. This has generally undertaken by two fluids of meteoric and brine origins over different stages of ore-formation, replacing anhydrite with strontium at high temperatures during late- diagenetic and epigenetic processes. Manuscript profile -
Open Access Article
28 - Examining the Status of Iran in the Global Innovation Index
AmirAli Karimi Ali MalekiToday, many countries look at the phenomenon of innovation as a tool for economic growth and development. The existence of many complexities in the path of creation to the application of innovation has caused many scholars to consider innovation in the form of an ecosys MoreToday, many countries look at the phenomenon of innovation as a tool for economic growth and development. The existence of many complexities in the path of creation to the application of innovation has caused many scholars to consider innovation in the form of an ecosystem. One of the reports that measures the innovation ecosystem in detail is the Global Innovation Index. This index examines different aspects of innovation by using seven pillars, each of these pillars has three sub-pillars and each sub-pillar has a number of indicators. With a history of 12 years in the report, Iran has gone through a growing trend, so that it has reached from the 120th rank in 2014 to the 53rd rank in 2022. The study of Iran's situation in various indicators shows that the country has a very favorable situation in the world in the education of university graduates, scholarly publications and domestic patents, while it has an unfavorable situation in the indicators related to the business environment and innovation collaborations. Due to the lack of data or not being up-to-date, Iran's situation in some indicators and sub-columns cannot be accurately cited. This point clearly shows that the policy maker must have an up-to-date internal database to evaluate the innovation ecosystem in order to adopt effective and flexible policies. Manuscript profile -
Open Access Article
29 - Determination of Potato Crop Cultivation in Hamedan Province, Using time series Satellite Images IRSP6
Ali shahbazi Loghman khodakrami kamran nasirahmadiThe aim of this study is to detect and quantify the cultivated area of potato fields in Hamadan Province using remote sensing methods and a time series of satellite photos. As a result, Awifs time-series imaging was used to determine the potato cropping area. For this p MoreThe aim of this study is to detect and quantify the cultivated area of potato fields in Hamadan Province using remote sensing methods and a time series of satellite photos. As a result, Awifs time-series imaging was used to determine the potato cropping area. For this purpose, pictures were taken at three different times when the potato plant turned green and yellow. Processing such as preparation, atmospheric and geometric correction, vegetation index, and unsupervised classification were performed on the images using appropriate training sites for supervised classification. Following the integration of these two layers, the studied area under the cropping map was prepared using the phase classification method. Additionally, by using the vegetation indices NDVI and SAVI, the area under cropping for the three main crop yields is determined first using the threshold level technique and in three temporal intervals. The kapa coefficient for potato under cropping area determined by phase classification, NDVI, and SAVI was 90, 87, and 85%, respectively. In 1998, the potato cropping area was determined to be 38740, 36728, and 36614 acres, respectively. This study clearly shows that the phase classification method and Awif data time series can be used to recognize and estimate potato under cropping area with acceptable precision and that vegetation indices distinguish potato under cropping area faster. Manuscript profile -
Open Access Article
30 - Investigation of Blood Coagulation Process on Biopolymers and Review on the Hemocompatibility Evaluation Methods
Rahim Dehghan Jalal Barzin Seyed Hossein Abtahian Behnam Darabi Hamidreza GhaderiThe use of biopolymers in the development of biomedical devices has extended in recent years. These devices are including prosthetic heart valves catheter, cardiovascular stents, artificial arteries, peacemakers, hemodialysis membranes, etc. Hemocompatibility is taken i MoreThe use of biopolymers in the development of biomedical devices has extended in recent years. These devices are including prosthetic heart valves catheter, cardiovascular stents, artificial arteries, peacemakers, hemodialysis membranes, etc. Hemocompatibility is taken into account as one of the essential cases of biopolymers for biomedical applications. Knowing biopolymer-blood interaction is very considerable for the development of a hemocompatible biopolymer. Various factors can undergo the hemocompatibility of biopolymers. Surface properties such as hydrophilicity, surface energy, and electrostatic charge are the most important factor for the control of hemocompatibility. In this study, further blood coagulation mechanism on the biopolymers, evaluation methods of hemocompatibility is investigated. Methods include protein adsorption which is the first phenomenon of the blood coagulation process, investigation of kallikrein activity which evaluates intrinsic coagulation pathway, assessment of coagulation times such as thrombin time (TT), prothrombin time (PT) and activated partial thromboplastin time (APTT) which monitor extrinsic, intrinsic and common pathway of blood coagulation, hemolysis of erythrocytes, microscopy analysis of cell adhesion, platelet adhesion and activation. Change in platelet morphology is one of the main criteria for the investigation of blood compatibility. Finally, a hemocompatible polymer should pass all mentioned blood compatibility analyses. Herein, besides i Manuscript profile -
Open Access Article
31 - A comparative study of the concept of home among children of two cities (Shiraz and Noujin)
Fahimeh Abbasi Tahereh Nasr Keivan Mohamadpur<p>Abstract The concept of “home” transcends its physical existence, manifesting as an intellectual image. In essence, a house is a place to live and reach peace and comfort. The term “house” encompasses two distinct aspects of meaning and concep More<p>Abstract The concept of “home” transcends its physical existence, manifesting as an intellectual image. In essence, a house is a place to live and reach peace and comfort. The term “house” encompasses two distinct aspects of meaning and concept, which are different from each other. The aspect of the house meaning is an objective reality of a place where a person resides, but the concept of the house is a mental perception. Understanding the concept of home necessitates a thorough analysis of each individual's mindset regarding their living space. The purpose of this research is a comparative assessment of the home concept among 9-10-year-old children residing in Shiraz and Nojin cities. The research methodology involves content analysis utilizing argumentative analogies along with information gathering through library and documentary studies, Persian and Latin articles, and field research. By analyzing and examining thirty samples of children's drawings from these cities, it is possible to identify the similarities and differences in their mental images of the home concept. Result of this examination and analysis is anticipated several conceptual codes can be obtained. From the summation of these conceptual codes, the home concept among the children of these cities can be found, encompassing themes such as peace, comfort, comfort, security, and prosperity.</p> Manuscript profile -
Open Access Article
32 - Investigating land use changes and trends of hydro morphological indicators on the area and volume of the Ovan Lake's water zone based on the time series of Landsat data
Morteza Karimi Hadi Modabberi Babak RazdarOne of the most important approaches to preserve and restore wetlands, is identifying environmental changes from past to present and developing an integrated management plan to control these changes and decision-making to provide solutions for improving the condition of MoreOne of the most important approaches to preserve and restore wetlands, is identifying environmental changes from past to present and developing an integrated management plan to control these changes and decision-making to provide solutions for improving the condition of these valuable ecosystems. Ovan Lake, as one of the beautiful and touristic landscapes in the forbidden hunting area of Eastern Qazvin, has distinct mountain habitats and various species of wildlife. By employing remote sensing techniques for a 30-year period, the process of changes and land use in the hydrological unit leading to Ovan Lake were identified and the trend of their changes was obtained quantitatively in this research. Then, the effect of the related hydromorphological indicators on the area and volume of the lake was investigated. The results showed that, according to the Modified Normalized Difference Water Index (MNDWI), the average area of the lake water zone was 8.15 hectares over the past eight years and based on univariate regressions, its hydrological regime is mainly related to two important factors of precipitation and evaporation. According to the univariate regressions demonstrate a significant relationship between the lake's hydrological regime and precipitation/evaporation rates. The evaporation parameter also showed a logical trend during the statistical years, so that the area and volume of the water zone of the lake has decreased by the increase of evaporation from the free surface of the water. Also, the results of multivariate regression between lake water volume and rainfall and evaporation components showed that the lake volume is more correlated with rainfall. But in contrast, evaporation changes with a greater slope or rate. Manuscript profile
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