Search or add a thesis

Advanced Search (Beta)
Home > Synthesis, Chracterization and Dsc Analysis of Glycidyl Azide Polymer Containing Different Initiation Diol/Triol Units

Synthesis, Chracterization and Dsc Analysis of Glycidyl Azide Polymer Containing Different Initiation Diol/Triol Units

Thesis Info

Author

Muhammad Arif

Supervisor

Shagufta Zulifiqar

Institute

Allama Iqbal Open University

Institute Type

Public

City

Islamabad

Country

Pakistan

Thesis Completing Year

2008

Thesis Completion Status

Completed

Page

xiii, 69.

Subject

Chemistry

Language

English

Other

Call No: 547 ARS; Publisher: Aiou

Added

2021-02-17 19:49:13

Modified

2023-01-06 19:20:37

ARI ID

1676710542414

Asian Research Index Whatsapp Chanel
Asian Research Index Whatsapp Chanel

Join our Whatsapp Channel to get regular updates.

Similar


Loading...
Loading...

Similar Books

Loading...

Similar Chapters

Loading...

Similar News

Loading...

Similar Articles

Loading...

Similar Article Headings

Loading...

مولانا ظفر علی خاں

مولانا ظفر علی خاں
افسوس ہے مولانا ظفر علی خاں بھی چل بسے۔مرحوم علی گڑھ یونیورسٹی کے قدیم طلبا میں اور اس ادارہ کی علمی،ادبی اور تہذیبی روایات کے بڑے حامل تھے۔ اردو صحافت میں انھوں نے بڑانام پیداکیا۔وہ بیک وقت بلند پایہ صحافی، صاحبِ طرز ادیب،نہایت قادر الکلام شاعر،نامور ادیب اورساتھ ہی صف اوّل کے لیڈر اورمجاہد تھے۔ایک زمانہ تھا کہ’ زمیندار‘ اخبار اورمرحوم کے اشعار کاگھر گھر چرچاتھا۔اُن کے فیض تعلیم وتربیت سے سینکڑوں ادیب، جرنلسٹ اور شاعر ہوگئے۔ شاعری میں انھوں نے شروع شروع میں اپنے استاد مولانا شبلی کاتتبع کیا لیکن اس مخصوص طرز کوانھوں نے اس درجہ ترقی دی کہ وہ اردو شاعری کی ایک مستقل صنف بن گیا۔الفاظ اُن کی مشت ِفکر میں موم تھے، جس طرح چاہا اُن سے کام لے لیا۔سخت سے سخت قوافی پرغیر معمولی قدرت تھی۔ذہن بے حد رسا اور طبیعت بلا کی موزوں تھی۔اگر وہ چاہتے توگھنٹوں شعروں میں گفتگو کرسکتے تھے۔بے شمار اخباری مضامین ومقالات اورنظموں اورغزلوں کے علاوہ چند ادبی کتابیں جن میں سے بعض اوریجنل ہیں اور بعض تراجم اور’الفاروق‘ کی جلداوّل کا انگریزی ترجمہ اُن کی ادبی یادگاریں ہیں۔تہذیب وشرافت اوراخلاق واطوار کے لحاظ سے ایک راسخ العقیدہ مسلمان تھے۔اُن کی زندگی بڑے بڑے طوفانوں سے گزری تھی جن میں وہ چٹان کی طرح اپنے مقام پرکھڑے رہے۔اﷲ تعالیٰ اُن کومغفرت وبخشش کی نعمتوں سے نوازے۔ [دسمبر۱۹۵۶ء]

 

سندھی ہندو سیرت نگار

The people of Sindh throughout history remain always very tolerate with one another personal belief. In this context the first person who write down the biography of Prophet Muhammad (PBUH) in Sindhi language was a Hindu namely Lal chand amr dino mal jugtiani, his book “Muhammad Rasoolullah P.B.U.H.” published in 1911 A.D. He not only written biography but also condemn those prejudice orientalist as well as native masses against their extremes behavior on pious character and caliber of noble Prophet of Islam. He along with other few notable writers namely Jath mal pursaram guljarani “Paighmbar-i- Islam”. Amar lal vasan mal hingorani “Mir Muhammad Arabi” 1947 A.D and an English book translated by Hout chand dial mal jughtyani “Isalm jo Paighabar” 1931 A.D. In this article researcher highlights their work along with their brief life sketch.

Reflect Arrays for High Gain Applications

This research work focuses on design and analysis of low-cost, single-layer broadband reflectarrays for X-band applications. Traditionally, parabolic reflectors and phased arrays were introduced to obtain the high gain. The disadvantages associated with traditional antenna types include: narrow bandwidth, high fabrication cost and complex feed networks. Recently, reflectarray antennas have been developed to overcome the disadvantages associated with parabolic reflectors and phased arrays. High gain reflectarray antennas are typically employed in radars, satellite communication and direct broadcasting applications. Four different type of delay-lines integrated reflectarray elements which include: single circular delay-line, pair of circular delay-lines, quad-meander and T-shape delay-lines are designed to obtain a broad linear phase range, high gain and good aperture efficiency. The reflectarray unit element performance is investigated in terms of phase range, Transverse Electric (TE) and Transverse Magnetic (TM) modes and far-field radiation patterns. The reflectarray unit element is analyzed by using circuit model technique and equivalent circuit results are verified through High Frequency Structure Simulator (HFSS™). The circuit model technique replaces the lengthy full-wave simulation of FEM method. This method provides fast and accurate calculation of electromagnetic parameters i.e. magnitude and phase range. The unit element shape and configurations are used to extract the lumped parameters and reflection characteristics. The reflectarray antenna system contains a feed horn antenna and an arrangement of phase shifting array elements. A hybrid Finite Element Boundary Integral (FEBI) method is used for electromagnetic modeling of reflectarray antenna system. The FEBI method provides accurate electromagnetic analysis of complex and medium-to-large sized structures. The reflectarray far-field radiation characteristics are obtained by using the hybrid FEBI method. The reflectarray antenna system model comprises of feed horn antenna and array of phase shifting elements. The feed horn antenna and array elements are designed separately. The effect of the incident angle, feed-to-diameter ratio and transmission modes can easily be considered in the FEBI based system simulations. The proposed reflectarray prototypes are fabricated and measured on a low-cost FR-4 substrate. The reflectarray antenna measurements are made in anechoic chamber. A gain of more than 20 dBi is realized for the proposed reflectarray configurations. The simulated and measured cross polarizations and side-lobe-levels are below -20 dB in all design configurations. More importantly, simulated results are in good agreement with the measured results.