جستجوی مقالات مرتبط با کلیدواژه « structural analysis » در نشریات گروه « میان رشته ای »

The Pazanan anticline is one of the most important condensate gas reservoirs in Iran, which is located in the southeastern part of the Dezful Embayment with a northwest-southeast trend.The structural analysis and deformation of this anticline based on the interpretation of existing subsurface data(including 3D-seismic data and drilled wells data) indicates that the folding style of this anticline in the Asmari reservoir and older formations is faulted asymmetric detachment folding.Based on the structural interpretation of the tops of the Asmari, Sarvak, Fahliyan, Gotnia formations and a deeper horizon(probably top of the Kangan) in the transversal seismic sections of the Pazanan anticline, it could be divided into 3 main culminations known as southeastern, central and northwestern, which are separated from each other by saddles.The interpretation of the observed seismic data and stratigraphic column clearly shows that the sedimentation thickness of formations, especially the Late Cretaceous and Paleocene,have been reduced due to the uplift of the Hendijan-Izeh Paleo-high, so that the Ilam and Gurpi formations have not been deposited or eroded in the Paleo-high area.The interpretation of the Asmari reflector in the seismic time slices, with assuming that the changes in the spatial dimension (along the axis of the Pazanan anticline) are equivalent to the changes in the time dimension(during the folding time of the anticline);shows folds growth in the central and southeastern culminations of the Pazanan anticline were simultaneously but separately,while the northwestern culmination of this anticline started to folding after increasing the deformation and finally connected to the central culmination.

The construction industry has always been influenced by new, emerging and advanced technologies throughout its history. Technological developments have led to increasing changes in many areas of the construction industry. This research investigated the technological changes and developments in the field of construction industry by adopting a future-research approach. The purpose of this study was to identify key technological factors affecting the future of the construction industry. First, using library studies, technological advances affecting the construction industry were identified. Examining the available documents and books, 18 drivers were identified in four areas: "design", "construction", "maintenance, repair and operation" and "management". Then, among the drivers determined, using the method of structural analysis and based on the opinion of experts, the key technological factors that will have the greatest impact on the future of the construction industry were identified. Research data was analyzed using MICMAC software. The results of using structural analysis method indicate that 9 key factors including building information modeling (BIM), new energy consumption simulation software, virtual reality and augmented reality, intelligent structural systems and facilities, 3D printers, prefabrication, modularization, robotics and blockchains will have the greatest influence on the future of the construction industry.

This study investigated the effect of entrepreneurial cognition on intention of entrepreneurial behavior with the mediating role of perceived fear using applied and descriptive-correlation research methods. The statistical population included all students of Shahid Chamran University of Ahvaz. Due to the difficulty of accessing the study population during the Coronavirus epidemic, a non-random sample available to 367 students was selected and studied. Measurement tools included Mitchell's et al.’s Entrepreneurial Cognition Questionnaire (2000), Valliere's Entrepreneurial Intention Questionnaire (2015), and Perceived Fear Questionnaire of Deniz et al. (2011) and Collins (2007). The validity of questionnaires was confirmed based on expert opinion of professors and their reliability was obtained using Cronbach's alpha coefficient of above 0.7. Data was analyzed by structural equation modeling in SmartPLS software. The results showed that entrepreneurial cognition has a significant negative effect on perceived fear (-0/655) and a significant positive effect on entrepreneurial behavior intention (0/37). Perceived fear also had a significant negative effect on the intention of entrepreneurial behavior (-0/44). Among the indicators of perceived fear, work and social fear and fear of lack of resources had the greatest impact on the intention of entrepreneurial behavior. In addition, the value of coefficient of determination showed that approximately 60% of the variance of entrepreneurial behavior intention was explained through entrepreneurial cognition and perceived fear. According to the findings, it is concluded that entrepreneurial cognition, directly and indirectly due to perceived fear, increases students' desire for entrepreneurial behavior. In other words, the mediating role of perceived fear in influencing cognition on intention of entrepreneurial behavior was confirmed.

In this paper effect of the strike-slip deformation on the Neogene structural evolution of the Qom sedimentary basin, western area of Qom city is investigated. For this purpose, after preparing geological map, structural study has been performed. Two stages of deformation are identified in the study area as the effect of NW trending strike-slip zone parallel to the Qom fault. In the first stage of deformation the main folds such as Mil and Kamarkuh anticlines and Yazdan syncline are formed and rotated counterclockwise. Then the Mill-Dochah fault and relevant sinistral fault are formed and folded. In the second stage, NNW to NW dextral strike-slip faults were initiated which in turn created restraining zone where the Mil-Dochah fault reactivated reversely and limbs of the Mil anticline were overturned. The syn-sedimentation normal folds are also reactivated normally in this stage. Sinistral and dextral strike-slip deformation of the zone is compatible with the first and second stage of deformation respectively. According to the angular unconformity that is formed as the effect of syn-sedimentation folding in the Upper Red formation, it is proposed that the age of first stage deformation is Miocene and second stage of deformation, which cut the first stage structures and reactivated the faults, is initiated in Pliocene.

Golkhari anticline is located in the Dezful Embayment Subzone and the hydrocarbon reservoir is the Asmari-Jahrum Formation. The presence of two subsurface thrust faults with opposite dip direction the limbs of anticline, leads to the formation of a Pop-up Structure. Based on the existence of Dashtak Formation as median detachment surface in region, the box fold shape of the anticline in structural cross sections and analysis of the geometric parameters of the sections and their comparison with the models proposed for fault-related folds indicate detachment fold geometry is considered for folding style of the anticline. Respectively, the amount of shortening in the forelimb and backlimb is 1605 m and 2160 m.The inscribed circle analysis has been applied to detect fractures in the Asmari reservoir. Using this method, the trace of axial plane of the fold can be obtained under Gachsaran Formation. By comparison with the trace of axial plane in the surface of Earth, the displacement of axial plane was calculated. The inscribed circle analysis has been applied to detect extensional fractures in the Asmari reservoir. Using geomagnetic map, satellite images and comparing their dominant fault trends with basement faults in region, their kinematic relationship were analyzed. Based on this analysis, the main shear-transverse fault zones that are located at the west (L1) and east (L2) of the anticline, their trend are similar to the basement faults. This trend is considered as main deformation zone, according to Ridel model.

Khorramabad's anticline with its overturned southern limb and NW-SE trend is located near Khorramabad city, in Zagros fold-thrust belt. Three structural cross sections with NE-SW trend was determined and desired structural data (strike and dip) of structures including fault, parasitic folds, and joints were obtained. For geometric analysis, and to determine the folding type related to the thrust faults, different Jamison`s diagrams were used. Results of this study suggest that the geometry of khoramabad's anticline is similar to Fault Propagation Folding and Faulted Detachment Folding. High Zagros Fault in this area, which is known as Khorramabad Thrust, passes from the south of Khorramabad anticline and is the main factor for generation of Khorramabad anticline

The study area is located in northwest of the Iran in west Azarbaijan province and south west of Urmia city. This area are contain Band area and around it. The Shaharchai dam in South Urmia is bordered between two sanandaj - sirjan zone  and central Iran. Litology of formation and walles reservoir of dam mainly include alternation of grey and pink marl, conglomerate, sandy limestone and limestone. Investigation of geomorphology a longh Shaharchai river indicate fragmentes motion that separated by faultes and mainly have transposition. Structures consist of abundant NW-SE trending folds and thrust faults, NW-SE trending thrust faults with stricke slip dipping to sothwest have carried the older rock sequences to the surface. Despite the thrust faults, both NW oriented (Main Recent Fault) and NE oriented wrench faults have also activated and caused different style and amount of deformation in Band area. Fractures observed in the study area can be classified as parallel, upright and angular relative to trend of the fold axes. These fractures are well developed in the limestone and in the hinge zones of the folds.