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علم کے فائدے

علم کے فائدے
علم نور ہے جہالت تاریکی ہے۔ علم کی شعائیں جہاں پہنچتی ہیں جہالت کے گھٹا ٹوپ اندھیرے اپنا وجود ختم کر بیٹھتے ہیں۔ قصر جہالت و لاعلمی کے در و دیوارلرزنے لگتے ہیں، خزاں رسیدہ دل و دماغ بہار آشنا ہوتے ہیں۔ علم کے زیور سے مرصعّ ومزیّن انسان عزّت وعظمت کے قصر رفیع میں مکین ہوتا ہے، معرفت وآگہی کا تاج سر پر سجائے فرائض منصبی کی ادائیگی کے لیے کمر بستہ رہتا ہے ،علم و آگہی کے نشتر سے معاشرے میں موجو ظلم و بربریّت کے ناسور کے متعفن مادے کے اخراج میں اہم کردار ادا کرتا ہے وہ کشور علم و دانش کا شہنشاہ اور اقلیم روحانیت کا تاجدار ہوتا ہے۔
علم انسان کوانسانیّت کی معراج پر فائز کرتا ہے، تاریخ شاہد ہے کہ اس عالم رنگ و بو میں جو مقام و مرتبہ اہل علم کو نصیب ہوا ہے وہ کسی اور کونہیں ملا ،علم ہی کی بدوت ہم نے فضاؤں کومسخر کیا ہے ،علم ہی کے ذریعے ہم نے ہواؤں میں پرواز یں کی ہیں، علم ہی کے سبب ہم نے جبال شامخہ کی سینہ شگافی کی ہے، علم ہی کی وجہ سے ہم نے اپنے کھیتوں اور کھلیانوں کو کشت ِزعفران بنایا ہے، علم کی تیغ سے غفلت و لاپرواہی کی جڑ کاٹی ہے ،علم کی شمع سے اندھیروں کوا جالا بخشا ۔علم نے ہمیں سچ اور جھوٹ میں فرق کرنے کا سلیقہ عطا کیا، اسی علم ہی کی بدولت اللہ اور اس کے رسول صلی اللہ علیہ و آلہٖ وسلمکی شناخت نصیب ہوئی۔
علم ہے میراث مومن کی ، اسے حاصل تو کر
علم ہے درمان راشدؔ اور جہالت اک مرض
اللہ تعالیٰ خالق ہے اور اس کے علاوہ دنیا کی ہر شے مخلوق ہے، انسان کو اللہ تعالیٰ نے اشرف المخلوقات بنایا ہے، اور اس جملہ...

السياق القرآني, أهميته, ومدى مراعاته عند الشرح والتفسير

The research deals with the exegesis of the meanings of the Holy Qurānic. It sheds light on the Qurānic context and to what extent it has been taken care of in the modern dictionaries compiled for the meanings of the difficult words of the Holy Qurānic. Cocntext is one of the most prominent phenomenon for help in determining the meanings of the Qurānic words and its exegesis. The research defined context, both as a lexical and technical word. It described its importance in the Holy Qurānic. It then differentiated between context and Nazm (order) which is discussed by both exegete and scholars of rhetoric. It was followed by Qurānic context, its features and importance. It then brought examples from some selected dictionaries which gave importance to the Qurānic context while explaining the meaning of the difficult words. The research concluded that there is great role of Qurānic context in explanation of the words. It is a phenomenon which has been taken care of right from the Holy Prophet and his companions up to the exegete of modern world.

Efficient Framework for Macroblock Prediction and Parallel Task Assignment in Video Coding

Video coding is an integral part of numerous real-time multimedia applications such as video telephony, telemedicine, video conferencing and video streaming. In real-time mul- timedia systems or power constrained systems, the coding performance of modern video coding standards such as High E ciency Video Coding (HEVC) and H.264/MPEG-4 Advanced Video Coding (AVC), is limited by computational complexity. This thesis presents research work to develop techniques to reduce the computational complexity of video encoders and to exploit their data and task level parallelism. These techniques aim to provide signi cant complexity saving as well as improving coding e ciency. A computationally e cient framework for macroblock prediction is developed to re- duce the computational complexity and overheads related to the macroblock prediction process in video encoding. The framework consists of several innovative techniques to exclude as many intra and inter prediction modes as possible prior to the RDO (rate distortion optimization) process. In the best case, the proposed framework selects one MB type either intra or inter and one corresponding near-optimal prediction mode, so that the complete RDO process is neglected. Simulation results show that the proposed framework achieves signi cant complexity savings without any signi cant degradation in video quality. In addition, a complexity reduction technique for motion compensation is developed to perform inter prediction. This addresses the computational complexity issues related to both interpolation and data manipulation modules of the motion compensation process. The end results of the experiments display that this method prominently decreases the computational complexity without loss in rate-distortion performance. Finally, an end-to-end hybrid hardware-software implementation scheme based on pipelin- ing and multitasking for advanced video coding is presented. This scheme exploits the task and data level parallelism in video encoders to improve their coding e ciency. The parallelism is exploited at both coarse-grain level andne-grain level. The coarse-grain level parallelism exploitation is done by concurrently executing multiple tasks on di er- ent processing cores whilene-grain level parallelism is achieved by using SIMD (single instruction multiple data) instructions. Such exploitation of parallelism also helps to better utilize the computational power o ered by advanced media processors. The out- comes of the experiments reveal that suggested scheme has resulted in enhancing the encoding rate and reducing power consumption. In theeld of video coding the main achievement of this research can be given in a nut shell as: (a) Development of computationally e cient techniques for macroblock predic- tion type and partition selection. (b) Development of complexity reduction algorithm based on intra and inter prediction mode selection. (c) Development of a computation- ally e cient scheme for motion compensation. Finally, (d) development of end-to-end vii hybrid implementation scheme for H.264/AVC encoder that exploits its data and task level parallelism to improve coding e ciency. These innovative techniques may prove handy in real-time implementation of H.264/AVC and HEVC video encoders in computationally constrained environments as is the case in general purpose computers and low-power mobile devices.
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