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Numerical simulation of the impact of polymer rheology on polymer injectivity using a multilevel local grid refinement method

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Petroleum Science 2016年第1期13卷 110-125页

作者： Hai-Shan Luo Mojdeh Delshad Zhi-Tao Li Amir shahmoradi Center for Petroleum and Geosystems Engineering The University of Texas at Austin

Polymer injectivity is an important factor for evaluating the project economics of chemical flood,which is highly related to the polymer *** the flow rate varies rapidly near injectors and significantly changes the polymer viscosity due to the non-Newtonian rheological behavior,the polymer viscosity near the wellbore is difficult to estimate accurately with the practical gridblock size in reservoir *** reduce the impact of polymer rheology upon chemical EOR simulations,we used an efficient multilevel local grid refinement（LGR）method that provides a higher resolution of the flows in the near-wellbore *** efficient numerical scheme was proposed to accurately solve the pressure equation and concentration equations on the multilevel grid for both homogeneous and heterogeneous reservoir *** block list and connections of the multilevel grid are generated via an efficient and extensible *** case simulation results indicate that the proposed LGR is consistent with the analytical injectivity model and achieves the closest results to the full grid refinement,which considerably improves the accuracy of solutions compared with the original *** addition,the method was validated by comparing it with the LGR module of CMG_*** polymer injectivity calculations,the LGR method is applicable for other problems in need of near-wellbore treatment,such as fractures near wells.

关键词： reservoir refinement rheology multilevel flooding viscosity permeability heterogeneous rheological porosity

Pedestrian street and its effect on economic sustainability of a historical Middle Eastern city:The case of Chaharbagh Abbasi in Isfahan,Iran

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Geography and Sustainability 2023年第3期4卷 188-199页

作者： Soudabeh shahmoradi Sayyed Mahdi Abtahi Pedro Guimaraes Department of urban planning Iranian Knowledge-Based Company of Pezhvak Tarh IranianIsfahan Science and Technology TownIsfahan University of Technology BlvdIsfahanIran Department of Civil Engineering Isfahan University of TechnologyIsfahanIran Centre of Geographical Studies Associated Laboratory TERRAInstitute of Geography and Spatial PlanningLisboaPortugal

Pedestrianization is an urban revitalization strategy to enhance sustainability and livability in car-oriented *** many studies in this research field,the effects of pedestrianization on the economy of cities in developing countries still need further ***,the impact of this strategy on the tenant mix of com-mercial and historical areas in Middle East countries is *** address these inadequacies,we considered Chaharbagh Abbasi street,located in the heart of Isfahan,Iran,and investigated the impact of a pedestrianization project with particular emphasis on how it affects the economic sustainability of existent commercial ***-and post-project data along with field observations and quantifications used to assess structural replacements in trade,were analyzed with SPSS and ArcGIS *** results revealed unexpected outcomes,such as the closure of some traditional businesses(27.5%),a stagnation in sales(69%)and a decrease in job offers(84%)leading the local economy to a fragile ***,it was found that the footfall volume increased by 64% and 73% from the retailers’and pedestrians’*** evolution along with a wide opening of food and beverage stores(approximately 60%)makes the post-pedestrianization results more promising than earlier *** conclusion,these findings reinforce the importance of pedestrian streets in revitalizing economic activities in historical and commercial areas from the perspective of economic *** to the lack of similar investigations in Middle East countries,these findings can support decision-makers and urban planners to take preventive measures in preserving the diversity of individual small shops for upcoming urban rehabilitation projects in terms of pedestrianization.

关键词： Urban planning Pedestrianization Chaharbagh abbasi Sustainable Development Goals(SDGs) Economic sustainability Historic city centers

Wild pistachio tree (Pistacia mutica) in the Qalajeh forest region of western Iran

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Journal of Forestry Research 2013年第3期24卷 611-614页

作者： Mohsen Javanmiri Pour Mousa Rasouli Hamid Soofi Mariv Mohammad Avatefi Hemat Masood shahmoradi Natural Resource Faculty Tehran University Karaj Iran. Landscape Engineering Department Faculty of Natural Resources andEnvironment Malayer University Malayer Iran. Department of Horticulture Science Agriculture Faculty Guilan UniversityRasht Iran.

Wild pistachio tree （Pistacia mutica） is considered the most important species in the Zagros forests. It can adapt to unfavorable environmental conditions. To find the suitable ecological conditions for pistachio species, we investigated different environmental factors such as gradient, aspect and position of the slopes through the distribution area. Frequency of pistachio trees in the north and northwest of Qalajeh forests was 36.4% and 1%, respectively. Maximum （32%） and minimum （13%） number of wild pistachio trees were in 30%--60% and 〉120% slope classes, respectively. The most number and least number of pistachio trees were found at elevations of 1100-1200 m and 2200-2300 m, respectively. The percentage of pistachio canopy coverage was 10. The average percentage of herbaceous coverage was 6.5. Pistachio trees of diameter per hectare at breast height （DBH）〉20 cm numbered 5 while average number of pistachio trees was 8 per hectare. Pistachio seedlings per hectare averaged 3.5. The number of other species per ha was 7 trees. The effect of aspect on other species was not significant （p=0.151）. Slope class and geographical aspect did not affect regeneration （p=0.275 and p=0.111, respectively）. Pistachio plays an important economic role in semi-arid areas, therefore it is essential to protect and restore Qalajeh forests through participation by government and local people.

关键词： quantitative investigation quality coverage percentage Qalajeh habitat Pistacia mutica

Resurgence of Geopolitical Rivalry in the MENA after the‘Arab Spring’

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Asian Journal of Middle Eastern and Islamic Studies 2020年第2期14卷 194-215页

作者： Mohammad Reza Dehshiri Hossein shahmoradi International Relations School of International Relations affiliated with Ministry of Foreign affairsTehranIran

With the surge of developments in the Middle East and North Africa,the political and geopolitical equations of this region have undergone major transformations and a new geometry of power is *** this regard,alongside the role of great powers and state actors,the growth and influence of nongovernmental and paramilitary groups is remarkable and has found an important place in the regional ***,the set of factors including the interventionist approach of some great powers,different and contradictory Islamic ideologies and the growth of extremism and paramilitary forces in the region has intensified the strategic rivalry between regional powers,with the formation of three major axes;the Iran-led Shiite axis,the Saudi-led Salafist axis and the Turkish-led Brotherhood *** this regard,the purpose of the present article is to determine how the so-called Arab Spring developments have changed the power equations in the Middle East and North Africa and led to the formation of new axes?The findings of the paper suggest that myriad factors including internal vulnerabilities,social structure and also elite consensus and cohesion have resulted in the different approaches adopted by each of regional ***,as a result of Arab Spring developments,the influence of some regional powers,like Iran,has been on the rise,while some others including Egypt have become marginalised and the efforts of some regional powers to further their influence have been *** research method is descriptive-analytic;documentary and reliable internet-based sources have been used to support the argument.

关键词： Arab Spring geopolitical rivalry Iran Saudi Arabia Turkey

Erratum to:Wild pistachio tree(Pistacia mutica) in the Qalajeh forest region of western Iran

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Journal of Forestry Research 2014年第2期25卷 487-487页

作者： Mohsen Javanmiri Pour Mousa Rasouli Hamid Soofi Mariv Mohammad Avatefi Hemat Masood shahmoradi Natural Resource Faculty Tehran University Landscape Engineering Department Faculty of Natural Resources and EnvironmentMalayer University Department of Horticulture Science Agriculture FacultyGuilan University

Erratum to:Journal of Forestry Reasearch,(2013)24(3):611-614DOI10.1007/s11676-013-0393-2The original version of this article unfortunately contained one mistake in author name in the *** second author’s name,"Mousa R... 详细信息

关键词： Pistacia mutica Erratum to in the Qalajeh forest region of western Iran

Surface Modification of ZnO and TiO2 Nanoparticles under Mild Hydrothermal Conditions

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材料科学与工程（中英文A版） 2013年第1期3卷 50-56页

作者： Behzad shahmoradi Kullaiah Byrappa Afshin Maleki Kurdistan Environmental Health Research Center Faculty of Health Kurdistan University of Medical Sciences Sanandaj lran Department of Earth Sciences University of Mysore Mysore 570006 India

There are various techniques for synthesizing different nanoparticles depending upon the desired properties, application, etc.. One of these widely applied techniques is hydrothermal. However, this technique is known for bulky materials and fabrication of nano-scale materials requires adopting some strategies to alter the properties of materials synthesized. We developed surface modification for this drawback. Application of surface modifier, or surfactant, or capping agent, or organic ligands in proper concentration could not only change morphology, reduce particle size, but also change the surface chemistry of the nanoparticles fabricated. The ZnO and TiO2 nanoparticles were modified using n-butylamine and caprylic acid as surface modifier under mild hydrothermal conditions (p = autogenous, T = 150-250 °C, and t = 18 h). The nanoparticles modified were systematically characterized using powder X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Scanning Electron Microscopy (SEM), zeta potential, and BET surface area. The characterization results revealed that nanoparticles have small size range, low agglomeration and highly stable.

关键词：二氧化钛纳米粒子表面改性剂水热条件氧化锌傅里叶变换红外光谱 TiO2纳米粒子扫描电子显微镜 BET比表面积

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西亚安全秩序变革的结构性要素分析

国际关系研究 2019年第6期 128-150,M0007,M0008页

作者：穆罕默德·雷扎·戴赫什里侯赛因·沙莫拉蒂陈佳骏伊朗外交部附属国际关系学院国际关系系伊朗外交部附属国际关系学院上海市美国问题研究所

本文分析了西亚秩序与安全的新趋势,该趋势源于在各方面影响或改变地区秩序的驱动力,如以相互关联方式发挥作用的结构、行为体和新进程等。由于西亚地区充满了不确定性和不可预测性,而且最重要的是规范性准则的缺乏、行为体的多元化以... 详细信息

本文分析了西亚秩序与安全的新趋势,该趋势源于在各方面影响或改变地区秩序的驱动力,如以相互关联方式发挥作用的结构、行为体和新进程等。由于西亚地区充满了不确定性和不可预测性,而且最重要的是规范性准则的缺乏、行为体的多元化以及塑造地区秩序的不均衡域外进程,导致该地区的安全行为体陷入困境。当前西亚局势的最终解决方案似乎只有集体安全倡议,如已经提出的建立牢固的地区和网络安全以及建立地区对话论坛。

关键词：地区秩序与安全新趋势西亚全方位平衡次国家行为者