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Connections of steel moment frames are vulnerable to brittle failure. Providing a perforation near the beam-ends is suggested as a potential method to improve seismic behavior of these structures. This article presents a numerical study on the energy dissipation of steel moment connections with perforated beam. Models with elongated circular openings of different dimensions and location are analyzed and compared based on the global and local damage indices, predicted failure time and dissipated energy. Results show that an RWS connection with a proper opening size can develop reasonable inelastic deformations and provide an acceptable seismic improvement to moment-resisting frames.  相似文献   
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This essay explores Bahram Beyzaie's inter-paradigmatic reformulations of Iranian dramatic forms and Shahnameh legends in plays which highlight the voice of the periphery against the center and imbue these narratives with motifs that relate them to the present. The essay first reviews Beyzaie's work with the Shahnameh and then examines the Shahnameh cycle of Jamshid and Zahhak to provide the context for in-depth analyses of Azhdahak (1959), Karnameh-ye Bondar-e Bidakhsh (The Account of Bondar the Premier, 1996), and the first episode of Shab-e Hezar-o-Yekom (The One Thousand and First Night, 2003) in which Beyzaie reconstructs the cycle of Jamshid and Zahhak.  相似文献   
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The dative case in Vafsi appears in three structures: (a) the case of the experiencer in sensory verbs, (b) the case of the indirect object (IO), and (c) the case of the object of the preposition /da/ (to), or the preposition /az/ (to), or the enclitic /-o/ (to), or the object of the postposition /rā/ (for). In Vafsi, as in many other Indo-European languages, sensory verbs necessitate the emergence of quirky subjects which have the experiencer function and are dative case marked. In order to analyze the dative case marking in Vafsi using optimality theory, this article uses the faithfulness constraint of faith-lex and the markedness constraint hierarchy of *ERG>>*DAT>>*ACC>>*NOM. Vafsi always allocates the dative case to the IO of the ditransitive verbs. This phenomenon is illustrated by use of an optimality theory (OT) tableau. Some Vafsi ditransitive verbs dative case mark the IOs using adpositions. If so, Vafsi differential adpositional case marking (DACM) will rule, as the IOs are objects of adposition (OAs) simultaneously.  相似文献   
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One of the major trends in experimental theater refashions the representational and presentational techniques of ancient rituals, medieval dramatic forms and popular performing traditions to create new forms of dramatic expression. In pre-revolutionary Iran, the proponents of this trend included those who worked with Iran National Theater and Theater Workshop. The 1979 revolution heralded the arrival of a different kind of drama in response to a host of new subjects and restrictions. However, unlike the political upheavals of previous periods which led to catastrophic discontinuity in the development of Iranian theater, it did not result in a complete breach. The post-revolutionary practitioners continued working with the templates devised by their pre-revolutionary colleagues, creating a dramatic tradition that has produced several masterpieces during recent decades. The purpose of this paper is to put the history of this experimental trend in perspective and examine the works of three of its major post-revolutionary practitioners. As such it will not focus on the history of indigenous forms or western-style theater in Iran, but on the recent history of this experimental mode and how its practitioners have refashioned Iranian performing traditions.  相似文献   
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The article analyzes area-wide alcohol-related driving crash rates, with an emphasis on neighborhood effects, edge effects, and spatial effects arising from shared roadways that traverse area boundaries. Using township data for the state of Indiana, spatial Durbin models of alcohol-related driving crash rates are presented. The results suggest that a township's population composition and its abundance of alcohol-related businesses impact the alcohol-related driving crash rates. Moreover, positive spatial dependence is found to be highly significant, cautioning against the reliance on possibly biased OLS estimators. Due to restrictions in access to the crash and alcohol-related businesses data of the neighboring states, an alternative approach is adopted to address the spatial edge effects that may arise from alcohol consumption of residents from the edge areas of the neighboring states (possibly leading to crashes inside the border townships). Given the variation in alcohol laws and regulations across states, an empirical assessment of the edge effects is particularly relevant where some border crossing may be deliberate so as to avoid more stringent alcohol restrictions.  相似文献   
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