پیوستہ رہ شجر سے امیدِ بہار رکھ
نحمدہ ونصلی علی رسولہ الکریم امّا بعد فاعوذ بااللہ من الشیطن الرجیم
بسم اللہ الرحمن الرحیم
معزز اساتذہ کرام اور میرے ہم مکتب ساتھیو!
آج مجھے جس موضوع پر اظہار خیال کرنا ہے وہ ہے:’’پیوستہ رہ شجر سے امید بہار رکھ‘‘
صدرِذی وقار!
زندگی تو گزر ہی جاتی ہے، رات کی تاریکی ہو زندگی تب بھی گزر جاتی ہے، دن کی روشنی ہوزندگی پھر بھی گزر جاتی ہے، ریگستان میں تپتی ہوئی ریت ہوزندگی وہاں بھی گزر جاتی ہے، گلستان میں موسم بہار ہوزندگی وہاں بھی گزر جاتی ہے ،سورج کی تپش سر پر سوار ہوزندگی تب بھی گزر جاتی ہے۔ جناب ِصدر! زندگی کانٹوں پر بھی گزری جاتی ہے، زندگی پھولوں کی سیج پربھی گزر جاتی ہے۔
جنابِ صدر!
اصل زندگی تو اس کی ہے جو معاشرہ سے وابستہ رہ کر گزارتا ہے، جو قوم سے محبت میں گزارتا ہے، جوملت سے ہم آہنگی میں گزارتا ہے، جو غرباء سے ہمدردی میں گزارتا ہے، جومحبت میں، موانست سے گزارتا ہے، جو کس مپرسی کی پشت پناہی میں گزارتا ہے۔
صد رِذی وقار!
جوملت سے مربوط ہوتا ہے، جو اپنے قویٰ اس کے استحکام کے لیے بروئے کار لاتا ہے، جو اس کی ترقی کے لئے شب و روز وقف کر دیتا ہے، جس کی مساعی جمیلہ اپنی قوم کے لئے مختص ہوتی ہیں، جس کوملت سے انس کبھی مضمحل نہیں ہونے دیتا، جس کی تمام کدوکاوش اپنی قوم کے لیے ہوتی ہے۔یہی اصل میںر جل رشید ہے اور زندہ انسان ہے۔
محترم صدر!
یہ وہی شخص ہوسکتا ہے جو درددل رکھتا ہو، جوقوم کے لئے مر مٹنے کو تیار ہو ، یہ جذ بہ وہی انسان پیش کرسکتا ہے جس کی نشست و برخاست ، جس کی گفت و شنید ،سب کی سب ملت کے...
John Rawls, an American Political Philosopher worked on the very idea of justice in his writings throughout his life. He was of the opinion that an institution is just and fair only when its principles and rules are prepared to benefit all the members of the society equally and if there is an unequal distribution then it must advantage all of them especially the ones who are least i.e. Needy. The political institutions must shape up such kind of policies in order for the development of the wellbeing of the individuals in the society by providing them with resources, opportunities, basic necessities etc. Equally. Whereas, the conception of social justice is also based on equality and the human rights where they could be treated as free and equals i.e. An egalitarian society. In this research paper we will analyze the significance of John Rawl’s theory
In this thesis, the use of adaptive optics to exercise control over the fundamental TEM00 Gaussian laser beam is employed for applications in optical metrology and photonic signal processing. Split into two parts, this treatise explores the use of adaptive optics to introduce novel design solutions in both of these important areas of optics. Two novel designs of motionless Variable Optical Delay Lines (VODLs) are proposed with the respective proof-of-concept implementations. The first VODL design employs multiple Electronically Controlled Tunable Lenses (ECTLs) to vary the optical path of a beam between two fixed locations. The design provides a repeatable digitally controlled short variable signal delay as well as a small signal delay step size for short delay measurements. The second Variable Fiber-Optic Delay Line (VFODL) design imparts long variable delays by switching an input optical/RF signal between Single Mode Fiber (SMF) patch chords of different lengths through a pair of Electronically Controlled Tunable Lenses (ECTLs) resulting in polarization independent operation. Moreover, two laser rangefinder designs are also proposed and experimentally demonstrated. Various existing target ranging techniques are limited in terms of the dynamic range of operation and measurement resolution. These limitations arise as a result of a particular measurement methodology, the finite processing capability of the hardware components deployed within the sensor module and the medium through which the target is viewed. Generally, there is a trade-off between the sensor resolution and dynamic range. First, we propose a novel design of a triangulation-based optical rangefinder which improves both the sensor longitudinal resolution and its dynamic longitudinal range through adaptive electronic control of beam propagation parameters. We present the theory iii and working of the proposed sensor and clearly demonstrate a longitudinal range and resolution improvement. The second divergence-based displacement sensor design works by tuning the spot size of a Gaussian Beam from a Laser Source (LS) at the plane of the target. The beam spot size tuning is achieved through the use of an Electronically Controlled Tunable Lens (ECTL). Using a carefully aligned sensor assembly, the corresponding beam diameters are recorded at the plane of an imaging detector for different ECTL focal length settings. This dataset is then used to estimate the distance of the target from the ECTL. The proposed rangefinder is compact, requires minimal data acquisition and processing resulting in a fast response time compared to its predecessor. The estimation of target distance through a measurement dataset also ensures that the proposed method is robust to errors associated with estimates which are based on the use of a single measurement data point. Experimental results demonstrate an excellent agreement with theory.