This book offers recommendations on the milling processes for the carbon fiber reinforced plastic CFRP/Al2024. Due to the anisotropic and non-homogeneous structure of CFRP and the ductile nature of aluminum, the machining of this material is very challenging and causes various types of damage, such as matrix cracking and thermal alterations, fiber pullout and fuzzing during drilling and trimming, which affect the quality of machined surface. The book studies and models the machined surface quality of CFRP/Al2024 using a two-level full factorial design experiment. It describes the processes of trimming using down milling, and statistically and graphically analyzes the influence and interaction of cutting parameters. Lastly, the book presents the optimization of the cutting parameters in order to create a surface texture quality of CFRP/Al2024 to less than 1 μm.
In ʿAlāʾ al-Dawla al-Simnānī between Spiritual Authority and Political Power: A Persian Lord and Intellectual in the Heart of the Ilkhanate, Giovanni Maria Martini investigates the personality of a major figure in the socio-political and cultural landscape of Mongol Iran. In pursuing this objective, the author follows parallel paths: Chapter 1 provides the most updated reconstruction of Simnānī’s (d. 736/1336) biography, which, thanks to its unique features, emerges as a cross-section of Iranian society and as a microhistory of the complex relationships between a Sufi master, Persian elites and Mongol rulers during the Ilkhanid period; Chapter 2 contains a study on the phenomenon of Arabic-Persian diglossia in Simnānī’s written work, arguing for its socio-religious function; in Chapters 3 to 6 the critical editions of two important, interrelated treatises by Simnānī are presented; finally, Chapter 7 offers the first full-length annotated translation of a long work by Simnānī ever to appear in a Western language.
This book offers recommendations on the milling processes for the carbon fiber reinforced plastic CFRP/Al2024. Due to the anisotropic and non-homogeneous structure of CFRP and the ductile nature of aluminum, the machining of this material is very challenging and causes various types of damage, such as matrix cracking and thermal alterations, fiber pullout and fuzzing during drilling and trimming, which affect the quality of machined surface. The book studies and models the machined surface quality of CFRP/Al2024 using a two-level full factorial design experiment. It describes the processes of trimming using down milling, and statistically and graphically analyzes the influence and interaction of cutting parameters. Lastly, the book presents the optimization of the cutting parameters in order to create a surface texture quality of CFRP/Al2024 to less than 1 μm.
This report examines what binds and divides the six Gulf Cooperation Council (GCC) states—Bahrain, Kuwait, Oman, Qatar, Saudi Arabia, and the United Arab Emirates—and presents the outlook for the GCC’s evolution over the next ten years. The study aims to help policymakers better understand intra-GCC dynamics and prepare for future trends in a region with high stakes for U.S. strategic interests.
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