سجاد، ابوالمحاسن محمد، مولانا
سجاد کی یاد
۲۳؍ نومبر ۱۹۴۰ء اور ۲۱؍ شوال ۱۳۵۹ھ کی سہ پہر تھی کہ پھلواری سے مولانا ابوالمحاسن محمد سجاد نائب امیر شریعت بہار کی وفات کی خبر آئی، دل کو یارائے ضبط نہ رہا، آنسوؤں کے چند قطرے زمین پر گرے، وہ زمین جواب مرنے والی کی خوابگاہ ہے، ابھی قلب میں یہ ہمت بھی نہیں کہ جی بھر کر ماتم کروں اور دل کے شیون کو سپرد قلم،
دریں آشوب غم عذرم بنہ گرنالہ زن گریم
جہانے راجگر خوں شد، ہمیں تنہا نہ من گریم
مرنا اور جینا دنیا کے روازنہ کے کاروبار ہیں، کون نہیں مرا اور کون نہیں مرے گا، آج وہ، کل ہماری باری ہے، اس پر بھی عزیزوں اور دوستوں کی موت پر رونے والے روتے ہیں، ان کی دائمی فراق پر ماتم اور فریاد کرتے ہیں، ان کی ایک ایک خوبی کو یاد کرکے ان کا نوحہ پڑھتے ہیں۔ عام حالت یہی ہے، لیکن بعض موتیں ایسی بھی ہوتی ہیں کہ ان کی خبر سن کر زبان بند ہوجاتی ہے، آنسو سوکھ جاتے ہیں، دل کی حرکت بڑھ جانے کے بجائے گھٹ جاتی ہے، اندر ہی اندر گھٹن محسوس ہوتی ہے، مگر جی نہیں چاہتا کہ کچھ بول کر دل کی بھڑاس نکالئے اور آنسو بہا کر غم ہلکا کیجئے، مولانا ابوالمحاسن محمد سجاد مرحوم کے سانحہ کا مجھ پر بالکل یہی اثر ہوا، دن بیت گئے ہفتے گزر گئے، مہینے ختم ہوگئے مگر زبان نہ کھلی اور دل کی امانت قلم کے سپرد نہ ہوسکی، عزیزوں اور دوستوں کو تعجب ہے کہ میرا قلم جو احباب کے سوگ میں ہمیشہ اشک زیر رہتا ہے، اس پہلی دفعہ وہ اپنے فرض کو کیوں بھولا ہے، مگر یہ کیسے بتاؤں کہ اس ناگہانی اور غیر متوقع غم سے مجھے کیوں چپ سی لگ گئی، ہر...
It is generally believed that the Constitution of 1973 was passed unanimously by the parliament of Pakistan and was equally acceptable for all the federating units. While studying the processes of the approval of the said constitution inside the assembly, it becomes evident that the reality was quite different. There exists an argument that most of the Opposition members were not allowed to join the parliament’s session while the final approval of the constitution was processed. The present paper is an effort to analyse the developments that took place inside the National Assembly to pass this document which was to serve as the fundamental document of the state system in forthcoming years. In other words, the present article analyses the course of action through which the Constitution was framed. This is an analytical study primarily based on the National Assembly debates supported by the secondary sources, biographies, and autobiographies of the contemporary politicians to understand how far the amendments suggested by the then opposition were accommodated by the ruling party. Furthermore, this paper analyses the reasons for which each government has to amend the basic structure of the constitution to make it more practical and acceptable for its units. For instance the Eighteenth Amendment removed the concurrent list of the constitution but now the following governments are facing issues to implement the Amendment in detail.
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.