List of Articles سامانه ها

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  1 - علل گرایش مدیران و کارکنان روابط عمومی به استفاده از سامانه های پیامکی (مورد مطالعه شرکت مخابرات ایران)
  سمیه تاجیک اسماعیلی منیژه رسول زاده
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  2 - The Graphic Techniques in the Urban Planning From Basic Tool to Prominent Technique
  مهدی Modiri احمد Poorahmad
  The increasing development of urban community under the influence of irregulargrowth population and immigrations, leading to unplanned constructions and itsuncontrolled expansion brought about many changes in the spatial structures of urban,This overall changes in its t More

  The increasing development of urban community under the influence of irregulargrowth population and immigrations, leading to unplanned constructions and itsuncontrolled expansion brought about many changes in the spatial structures of urban,This overall changes in its turn require more than ever informed direction, substantialorganization and suitable spatial design. On the other hand, the fundament social,cultural and economical changes are seeking an extensive transformation in the spatialstructure of environmental complexes. Certainly, such changes can not advancewithout effective planning and guidance of urban developers.Urban and regional planners advocating formulating and regulating plans andadopting policies need continuous acquisition of information. Urban planning anddesigning from perception to designing and implementing urban plans need correct,precise , rapid and up-to-date information of local, urban and region.So far, cartographical elements (such as graph, histogram, map, photo, aerialphoto, satellite image and geographical information system) acted as a basic tool forsecuring correct, precise and up to date information leading to better understanding ofurban and regional potentialities, trends of urban planning and designing and finallyproviding an accepted image for urban .Over the recent years, cartographic knowledge, which is influenced byelectronic, satellite and automation has been on the threshold of a fundamental changeand in addition to its determining role of simulation, it has transformed into a uniquetechnique in modeling (designing for future) for the purpose of designing and planningand testing of processes and analyzing the results prior to the implementation.The aim of this article is conducting a research to explain the influence ofautomation in changing the cartography and transforming it into an effective andsalient technique in urban and regional planning and presenting a suitable model. Manuscript profile
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  3 - Liquidity Risk Management in Modern Interbank Payment Systems
  rassol khoshbin Farzin Rezaei Mohammad Ali Rastegar
  In this study, in order to measure the liquidity risk in interbank payment systems, the time series of daily data balances of an Iranian bank's payment systems from 01/01/94 to 31/5/98 and then We examined stationary time series with Dickey Fuller and Philips Peron test More

  In this study, in order to measure the liquidity risk in interbank payment systems, the time series of daily data balances of an Iranian bank's payment systems from 01/01/94 to 31/5/98 and then We examined stationary time series with Dickey Fuller and Philips Peron tests and compared the expected value and risk value of payment systems data with the historical method and compared with the Pareto method. The results of the Kopik and Christofferson tests showed that Pareto's generalized approach to better manage banks' liquidity risk is better than historical method based on daily data of payment systems. The bank can then provide liquidity management operations to manage the liquidity risk in the payment system Manuscript profile
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  4 - Mechanisms of Heavy Metals Immobility in Soils
  Ramin Salmasi
  Background and Objectives: Pollutant discharge from agricultural systems as a result if agricultural activities, is one of the factors for soil and water quality. Various soil and water remediation techniques including the use of chemical amendments have been applied to More

  Background and Objectives: Pollutant discharge from agricultural systems as a result if agricultural activities, is one of the factors for soil and water quality. Various soil and water remediation techniques including the use of chemical amendments have been applied to reduce the risks associated with these contaminants. This paper reviews the use of chemical amendments for immobilizing chemical amendments, the chemistry of contaminant immobilization, and environmental concerns associated with the use of these products.  Total Contents of heavy metal in the soils of polluted villages of Hashtrood city and determining the relationships of these metals and soil properties are the goals of this research.Material and Methodology: The commonly used chemical amendments were grouped into aluminum-, calcium-, and iron-containing products. Other products of interest include phosphorus-containing compounds and silicate clays.Results: Mechanisms of contaminant immobilization include one or a combination of the following: surface precipitation, adsorption to mineral surfaces (ion exchange and formation of stable complexes), precipitation as salts, and co-precipitation. Reviews of environmental implications revealed that undesirable substances such as trace elements, fluoride, sulfate, total dissolved solids, as well as radioactive materials associated with some industrial wastes used as amendment could be leached to ground water or lost through run off to receiving water bodies.Discussion and Conclusion: The acidity or alkalinity associated with some of the industrial-waste amendments could also constitute a substantial environmental hazard. Chemical amendments have elements capable of affecting the activities of certain microbes that could influence geochemical processes such as mineral dissolution and formation, weathering, and organic matter mineralization.  Manuscript profile
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  5 - Contaminant-immobilization Amendments: Immobilization Mechanisms and Environmental Considerations of Application
  Ramin Salmasi
  Pollutant discharge from agricultural systems as a result if agricultural activities is as one of the factors for soil and water quality. Various soil and water remediation techniques including the use of chemical amendments have been applied to reduce the risks associa More

  Pollutant discharge from agricultural systems as a result if agricultural activities is as one of the factors for soil and water quality. Various soil and water remediation techniques including the use of chemical amendments have been applied to reduce the risks associated with these contaminants.  This paper reviews the use of chemical amendments for immobilizing chemical amendments, the chemistry of contaminant immobilization, and environmental concerns associated with the use of these products.  The commonly used chemical amendments were grouped into aluminum-, calcium-, and iron-containing products. Other products of interest include phosphorus-containing compounds and silicate clays. Mechanisms of contaminant immobilization include one or a combination of the following: surface precipitation, adsorption to mineral surfaces (ion exchange and formation of stable complexes), precipitation as salts, and co-precipitation. Reviews of environmental implications revealed that undesirable substances such as trace elements, fluoride, sulfate, total dissolved solids, as well as radioactive materials associated with some industrial wastes used as amendment could be leached to ground water or lost through runoff to receiving water bodies. The acidity or alkalinity associated with some of the industrial-waste amendments could also constitute a substantial environmental hazard. Chemical amendments have elements capable of affecting the activities of certain microbes that could influence geochemical processes such as mineral dissolution and formation, weathering, and organic matter mineralization. Manuscript profile
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  6 - مدلسازی ریاضی به منظور شناسایی عوامل اثرگذار در پذیرش سامانه های نوین آبیاری درمصرف بهینه آب کشاورزی(مطالعه موردی بخش باروق شهرستان میاندوآب)
  سمیه جنگ چی کاشانی مسعود حکمت
  1095
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  7 - The Impact of the Indigenous Model of Organizational Excellence (Designed) in Iranian Government Organizations
  Mohamad Taherirozbahani Reza Najafbigi seyed Mehdi Alvani Gholamreza Memarzadeh
  Abstract: The main objective of this research is to investigate the native model of organizational excellence in governmental organizations of Iran. The research is descriptive-correlative and purposeful, applied and fundamental, based on field and library research. The More

  Abstract: The main objective of this research is to investigate the native model of organizational excellence in governmental organizations of Iran. The research is descriptive-correlative and purposeful, applied and fundamental, based on field and library research. The statistical population of this study is the official staff of the Ministry of Industry, Mines and Trade (583 persons) and the sample is set at 234 people using the Morgan and Tacman tables. Sampling method in this research was simple random sampling and data on variables were collected through a researcher-made questionnaire (Cronbach's alpha = 988/0). Data were analyzed using software (Spss, Lisrel and PLS), and t-value, chi-square test, correlation coefficients, and least partial second power (PLS) method were used to answer the hypotheses. The results indicate that drives have a significant effect on the systems. Drivers have no significant effect on the results and the systems have a significant effect on the results. Manuscript profile
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  8 - Climatic Monitoring of Snow Days in Zahedan
  sayyed mohammad hosseini abdolreza kashki
  In this regard, the present study investigated the climatic of the Zahedan snow days since 1976 over a period of 40 years. To achieve this goal, two databases were used. First databases; the present weather codes are related to the snow phenomenon, which was collected d More

  In this regard, the present study investigated the climatic of the Zahedan snow days since 1976 over a period of 40 years. To achieve this goal, two databases were used. First databases; the present weather codes are related to the snow phenomenon, which was collected daily from the Meteorological Organization. The second database, relates to the daily data of sea level pressure and geopotential height in the troposphere from National Center for Environmental Prediction (NCEP). With Environmental to Circulation Technic and cluster analysis, weather patterns causing snow days, identified. The results of the analysis showed that, snowfall in Zahedan is concentrated in autumn and winter seasons (December, January, February and March). At sea level pressure, integration patterns of Siberian-Caspian high-pressure migrants with 32.5% and Siberian-Caucasian highs with 20%, play the most roles in snowfall event. Also in the middle troposphere, Turkmenistan's ridge and Blocks (cut-off high) account for 42.5% and the European omega block pattern accounts for 25% of the snowfall frequency. It seems that the simultaneous activity of atmospheric disturbances in the immigrant high pressure systems of the Siberian, European, Caucasian, Russian and Caspian, deep ridge polar latitudes and its extension to the lower latitudes, It will exacerbate showers and temperatures, cold weather and snowfall. Manuscript profile
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  9 - ارزیابی چرخه حیات تولید میوه زیتون در اندازه های مختلف باغ و سامانه های کشت ارگانیک و رایج
  سعید فیروزی امیرحسین بازیار
  هدف از این تحقیق، بررسی اثرات زیست­محیطی تولید میوه زیتون در اندازه­های مختلف باغ و تحت شرایط کشت ارگانیک و معمول، با استفاده از روش ارزیابی چرخه حیات در شمال ایران بود. داده­های تحقیق با استفاده از پرسشنامه و مصاحبه رو در رو از 305 باغدار زیتون در منطقه مور More

  هدف از این تحقیق، بررسی اثرات زیست­محیطی تولید میوه زیتون در اندازه­های مختلف باغ و تحت شرایط کشت ارگانیک و معمول، با استفاده از روش ارزیابی چرخه حیات در شمال ایران بود. داده­های تحقیق با استفاده از پرسشنامه و مصاحبه رو در رو از 305 باغدار زیتون در منطقه مورد مطالعه گرد­آوری شدند. شش گروه تاثیر شامل تخلیه منابع سوخت­های فسیلی، گرمایش جهانی، اسیدیفیکاسیون، اوتریفیکاسیون خشکی، تخلیه منابع فسفات و پتاس مورد بررسی قرار گرفت. یک تن میوه زیتون به عنوان واحد عملکردی در نظر گرفته شد. نتایج تحقیق نشان داد که باغ­های زیتون بزرگ (بزرگتر از 5 هکتار) در تمامی گروه­های تاثیر، بیشترین اثرات زیست­محیطی را در پی داشتند. در مجموع، اسیدیفیکاسیون، اوتریفیکاسیون خشکی و تخلیه منابع فسفات، به ترتیب با شاخص­های نهایی 58/1، 68/2 و 12/3 ، مهمترین گروه­های تاثیر بودند. نتایج تحقیق همچنین نشان داد باغ­های زیتون ارگانیک از نظر زیست­محیطی نسبت به باغ­های معمول، عملکرد زیست­محیطی بهتری داشتند. جایگزینی بخشی از کودهای شیمیایی مورد استفاده بخصوص در باغ­های بزرگ با انواع کودهای بیولوژیک نظیر کودهای دامی برای تغذیه درختان زیتون پیشنهاد شد. همچنین، لازم است یک راهبرد منطقه­ای جهت حرکت به سوی سامانه کشت تلفیقی مناسب طراحی گردد تا اثرات زیست­محیطی تولید میوه زیتون در باغ­های بزرگ منطقه مورد مطالعه کاهش یابد. Manuscript profile
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  10 - The Effect of different Tillage Methods on Weed Population in three Wheat Cultivars
  O. Alizadeh Z. Nayeri
  To investigate the effect of tillage methodos on weed population dynamics in three wheat cultivars a experiment was conducted in 2014 crop year in khan khamis ,Dashte Siakh Experimental design was a split plot in a randomized complete block design with three replication More

  To investigate the effect of tillage methodos on weed population dynamics in three wheat cultivars a experiment was conducted in 2014 crop year in khan khamis ,Dashte Siakh Experimental design was a split plot in a randomized complete block design with three replications .Tillage methods including conventional tillage (plowing, disc), reduced tillage (plowing apparatus combined) and no tillage (direct seeding using a seed) as main plots and three cultivars include Pishtaz figures, chamran and Shirudi as sub plots. The results showed that the effect of tillage systems and the interaction between tillage systems and weed density, on weeds population of narrow and wide leaves variety in various stages of wheat were significant. While the effect of cultivar on density of narrow leaf weeds in in all stages of growth and broadleaf weeds in tillering stage were not significant and the effect of tillage systems on weed broad and narrow leaf dry weight was significant and overall dry weight of weeds in broadleaf weeds without tillage systems were formed.Key words: wheat, tillage systems, weed, Manuscript profile