This paper presents designing an adaptive state feedback controller (ASFC) for a magnetic levitation system (MLS), which is an unstable system and has high nonlinearity and represents a challenging control problem. First, a nonadaptive state feedback controller (SFC) is designed by linearization about a selected equilibrium point and designing a SFC by pole-placement method to achieve maximum overshoot of 1.5% and settling time of 1s (5% criterion). When the operating point changes, the designed controller can no longer achieve the design specifications, since it is designed based on a linearization about a different operating point. This gives rise to utilizing the adaptive control scheme to parameterize the state feedback controll

סיכום 1. ישראל מייחסת חשיבות מיוחדת לספרות ערבית בכלל, ולספרות של נגיב מחפוז בפרט, שכן היא מייצגת מקור חשוב לתובנות לגבי אופי החברה הערבית בכלל והחברה המצרית בפרט. 2. ישראל ייחסה חשיבות מיוחדת לנגיב מחפוז בשל יצירתו הפורייה ומעמדו בזירה הספרותית הבינלאומית והערבית כאחד, בנוסף לעמדותיו האישיות כלפי ישראל לפני ואחרי מלחמת אוקטובר, עמדות שבגינן ספג ביקורת ואף נאסר עליו לכתוב. 3. תרגום "אל-סוכריה" של סמי מיכאיל לא הי

Groundwater modelling is particularly challenging in arid regions where limited water recharge is available. A fault zone will add a significant challenge to the modelling process. The Western Desert in Iraq has been chosen to implement the modelling concept and calculate the model sensitivity to the changes in aquifer hydraulic properties and calibration by researching 102 observations and irrigation wells. MODFLOW-NWT, which is a Newtonian formulation for MODFLOW-2005 approaches, have been used in this study. Further, the simulation run has been implemented using the Upstream-Weighting package (UPW) to treat the dry cells. The results show sensitivity to the change of the Kx value for the major groundwater discharge flow. Only abo

DBNRAAK Mohammed, International Journal of Research in Social Sciences and Humanities, 2020

This article aims to provide a bibliometric analysis of intellectual capital research published in the Scopus database from 1956 to 2020 to trace the development of scientific activities that can pave the way for future studies by shedding light on the gaps in the field. The analysis focuses on 638 intellectual capital-related papers published in the Scopus database over 60 years, drawing upon a bibliometric analysis using VOSviewer. This paper highlights the mainstream of the current research in the intellectual capital field, based on the Scopus database, by presenting a detailed bibliometric analysis of the trend and development of intellectual capital research in the past six decades, including journals, authors, countries, inst