ایٹمی توانائی کا پرامن استعمال
آنکھ جو کچھ دیکھتی ہے لب پہ آ سکتا نہیں
محو حیرت ہوں کہ دنیا کیا سے کیا ہو جائے گی
ہماراوطن عزیز پاکستان بھی ایک ترقی پذیر ملک ہے۔ اسے اپنی تعمیر وترقی کے لیے مختلف ذرائع و وسائل سے کام لینا چا ہیے۔ ہمارے مشہور وسائل قوت، معدنی تیل، قدرتی گیس، برقی طاقت اور بائیوگیس وغیرہ ہیں۔ شمسی توانائی بھی ایک وسیلہ قوت ہے لیکن اس سلسلے میں ابھی تک کوئی قابل قدر پیش رفت نہیں ہوئی ۔تعمیر وترقی کے میدان میں ہماری ضروریات اس قدر وسیع اور لامحدود ہیں کہ موجودہ وسائل اور ذرائع قطعاً نا کافی ہیں۔ اس لیے ہمیں لامحالہ ایٹمی توانائی کے حصول اور پھر اس کے پرامن استعمال پر اپنی مساعی اور کوششوں کو مرکوز کرنا ہے۔ بڑھتی ہوئی آبادی اور پیہم روز افزوں ضروریات کے پیش نظر اگر ہم نے اس شعبے میں غفلت اور کوتاہی سے کام لیا تو ہماری تعمیر وترقی کا تمام تر نظام اور پروگرام درہم برہم ہو کر رہ جائے گا۔
اپنی توانائی کے حصول کے بعد اس سے ایٹمی دھما کہ مطمع نظر نہیں ہونا چاہیے بلکہ اس کا پر امن استعمال پیش نظرر ہے۔ اس سے منشاء اور مراد ہو کہ ٹیکنالوجی کے شعبے میں استحکام اور فروغ ہوتا کہ اپنے پاؤں پر کھڑا ہوسکیں اور عوام کو پر مسرت زندگی کی ساعتیں دے سکیں۔
ایٹمی ٹیکنالونی میں پیش قدمی کا صنعت و زراعت پر اچھا اثر پڑتا ہے۔ ایٹمی پیش رفت نے الیکٹرانک انڈسٹری پر خوشگوار اثر ڈالا ہے اور بہتر نتائج سامنے آرہے ہیں۔ تعلیم کے میدان میں بھی کافی ترقی ہوئی ہے۔ ایٹمی توانائی کے پرامن استعمال سے ہم اپنے مختلف شعبہ ہائے زندگی میں عظیم انقلاب برپا کر سکتے ہیں مثال کے طور پر ہم تکنیک استعمال کر کے زرعی پیداوار میں دس...
Calling to the path of Allah has never been an easy task. It was in fact direct opposition of the prominent personalities of that time. The holy Prophet r conducted preaching (Daa’wah) in such a way that it is not monotonous for the listeners. The Prophet r did not make them sit for long and hear lengthy speeches. Preaching (Daa’wah) in today’s world is not as successful and effective mainly because it is not carried out the way as prescribed and practiced by the holy Prophet r. It is pertinent to mention here that way of preaching adopted by Prophet Muhammad r was the same as it had been the method of all Prophets before Him r. However, it can truly be said that Prophet Muhammad r developed these qualities to the extreme heights. In this article, prophetic approach of preaching was discussed in a way that may guide the preachers of modern times in efficient as well effective way. These virtues were discussed as different traits in the personality of a preacher.
This dissertation investigates and describes the concept of soliton and shock formation in plasma. A rigorous theoretical investigation is made to find energy of EASWs in unmagnetized collisionless plasma. By employing reductive perturbation method, KdV equation is derived for kappa and Cairns distributed electrons. HPM technique is used to handle KdV equation. The consequences of different parameters ? (spectral index) and ? = ??/?? on soliton profile are discussed. Secondly, soliton and shock formation is studied in a magnetized rotating plasma using Cairns distribution. An admitted solitary wave solution KdV equation and an admitted travelling wave solution KdVB equation are derived. HPM technique is applied on derived KdV equation and ???ℎ-method on derived KdVB equation. It is noticed that ? = ?ℎ/??, ? = ?0?/?0ℎ affect both the soliton width and amplitude. It is also noticed that ? = ??/??, ? = ?0?/?0ℎ, kinematic viscosity and angular frequency affect the structure of shocks. Thirdly, solitons in ion-temperaturegradient (ITG) mode in a plasma are studied. Using Braginskii’s model, KdV equation in ITG mode is derived. Dependence of soliton width and amplitude on parameters ?? = ??/ ??, ? = ?? /??, and ?0 is discussed. After that, solitons formation is studied in electron-temperaturegradient (ETG) mode in a plasma. Using Braginskii’s model linear dispersion relation and KdV equation for the ETG mode are derived. It is observed that the ETG mode supports only rarefactive solitons. It is also observed that soliton profile is sensitive to ? = ??/??, ?? = ??/?? and ?0. As finding of the connection of entropy with density and temperature of plasmas gives an incitement to investigate different entropy based plasma models. Therefore, using Braginskii’s model dispersion relation and KdV for ITG mode in presence of entropy drift are derived. It is noticed only compressive solitons can be generated in this mode. It is found that entropy enhances soliton amplitude and width. It is also found that in presence of entropy drift increasing magnetic field and ion temperature enhance the soliton profile. Lastly, nonlinear dissipative one and twodimensional structures (shocks) are investigated in nonuniform magnetized plasma with respect to entropy. The dissipation comes in the medium through ion-neutral collisions. Linear dispersion relation is derived. KdVB and KPB equations are derived for nonlinear drift waves in 1-D and 2- D by employing the drift approximation. It is found that ??/? plays a significant role in the shocks formation. It is noticed that ??/? determines the rarefactive and compressive nature of the shocks. It is observed upper and lower bounds exist for the shocks velocity. It is also observed that the existing regimes for both one and two-dimensional shocks for kappa distributed electrons are different from shocks with Cairns distributed electrons. Both rarefactive and compressive shocks are found for the 1-D drift waves with kappa distributed electrons. Interestingly, it is noticed that entropy enhances the strength of one and two-dimensional shocks.