مخطوطات السيرة النبوية في الجامعات الباكستانية فى القرن العشرين

Allah Almighty has kept many sources to save his eternal message, of writings the in biography holy his and صلى الله عليه وسلم prophet his of words golden the different scholars. This shows the importance of our sacred heritage that includes the biography of the Holy Prophet ﷺ. These hand-written books (manuscripts) consist of the exegesis of Qur’ān, Jurisprudence, Principles of Exegesis of Qur’ān and Jurisprudence, morphology, syntactic and many other sciences related to Arabic language and literature. The researcher has صلى الله عليه وسلم Prophet Holy the of biography the about manuscripts the evaluated written in different universities of Pakistan during MA, MPhil, and PhD in the 20th century. The research methodology followed in the research is descriptive. Each understudy manuscript is considered from different aspects that include different features of the work done, i. E. Language of the manuscripts, details of the original text, references of Aḥādīth, pattern of footnotes, primary and secondary sources etc. The article is divided into three main sections in the following way: First deals with Islamic Arabic Manuscripts, Second are Manuscripts in Pakistani Libraries and third are would research The. صلى الله عليه وسلم Prophet the of Sirah about Manuscripts evaluated highlight value of the Manuscripts and the critical analysis of the mistakes found in Manuscripts and it would certainly improve their language, and research pattern.

Fault Diagnosis and Fault Tolerant Control of Switched Dynamical Systems

Modern technological systems consist of many components with strong interactions between them. Faults may cause an unacceptable loss of the system functionality, instability, or fatality. Systems capable of automatically detecting, diagnosing faults, and maintaining the overall functionality are desirable. Fault diagnosis (FDD) is a process that detects, locates, andnds nature of fault. Fault tolerant control (FTC) system has the ability to tolerate faults. Among dynamical systems, switched systems (SS) have numerous applications in control of robotics, automotive industry, aircraft and air tra c control, industrial electronics (power converters) etc. A typical SS is composed of a family of subsystems and a rule that governs the switching among them. Ideally, the FDD/FTC systems are designed on the basis of assumption that it is switching synchronously with corresponding subsystems of SS; that is; FDD/FTC system switches exactly at the time of switching in the switched system to be monitored. However, in practice, the switching in FDD/FTC system lags the switching of the switched system to be monitored. This creates a particular interest in the design of FDD/FTC systems especially when there is event-based switching. In this dissertation, the term\asynchronous" is used to illustrate this situation. This thesis studies the design of FDD and FTC systems of SS under asynchronous switching scenario, in the presence of disturbances and noise (unknown inputs). In therst part, a framework for fault detection and isolation (FDI) is proposed. The residual (symptom signal) is so generated that it is sensitive to faults and robust against disturbances. A multi-objective problem is formulated based on H?=H1ltering. Using the average dwell time approach and the piecewise Lyapunov function technique, su cient conditions are suggested in terms of linear matrix inequalities (LMIs) to guarantee the stability and desired performance. In addition, the proposed framework has also been extended to design FDI strategy for uncertain SSs. A norm-bounded uncertainty is considered. To improve the FDD capability adaptive threshold scheme is developed. xiii In the second part, fault estimation (FE) and FTC schemes are proposed. The proposed framework is based on unknown input observer (UIO) and H1 optimization. On the basis of FE, recon guring control law approach is utilized to tolerate faults. To this end, an integrated approach for FE/FTC is proposed for SSs. The last part of this dissertation addresses another very important problem of highly practical interest; that is, the design of fault detection (FD) scheme for switched system with state delays, under asynchronous switching. The tools from robust control theory, Lyapunov stability theory, and linear matrix inequality are used to propose the schemes. To demonstrate the e ectiveness of the proposed schemes, the algorithms have been tested on the dynamics of highly maneuverable aircraft technology (HiMAT) and battery converter unit (BCU) of hybrid electric vehicle.