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Evolution of an Economical Design of Rcc Twin-Block Sleeper for Pakistan Railway

Thesis Info

Author

Abdul Rehman

Department

Department of Civil Engineering, UET

Institute

University of Engineering and Technology

Institute Type

Public

Campus Location

UET Main Campus

City

Lahore

Province

Punjab

Country

Pakistan

Thesis Completing Year

1987

Thesis Completion Status

Completed

Page

V, 186 . : ill, table,grah, 28 cm.

Subject

Engineering

Language

English

Other

Hardcover.; includes bibliographical references & index.; Call No: 625.143 A 32 E

Added

2021-02-17 19:49:13

Modified

2023-01-06 19:20:37

ARI ID

1676712482336

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غلام آیا ہے آقا مگر ہے شرمندہ

غلام آیا ہے آقاؐ مگر ہے شرمندہ
جھکی ہوئی ہیں نگاہیں ، نظر ہے شرمندہ

لبوں پہ کوئی بھی اک لفظ آ نہیں پاتا
دُعا کو ہاتھ اُٹھیں کیا اثر ہے شرمندہ

ہمارے ہاتھ بھی خالی ہیں اور دامن بھی
مدینے جاتے ہیں لیکن سفر ہے شرمندہ


بڑھا سکا نہ یہ ایمان کی حرارت کو
سو میرے دل میں دہکتا شرر ہے شرمندہ

اب ایک در پہ جُھکے بھی تو کیسے جُھک پائے
کہاں کہاں اِسے رکھا کہ سر ہے شرمندہ

مجھے یقین ہے اپنے کریم آقاؐ پر
صدا کرم کی سنوں گا، ’’کدھر ہے شرمندہ‘‘

مجھے سلیقۂ توصیف ہی نہیں عابدؔ
میں نعت لکھتا ہوں لیکن ہنر ہے شرمندہ

''المواھب اللدنیۃ با لمنح المحمدیۃﷺ'' کا تعارفی و تجزیاتی مطالعہ An Analytical study of the

Although Imam Qusṭalānī, in compiling his book "Al-Mawāhib Al-Laduniyat Bil Minḥ Al-Muhammadiyah", has followed the footsteps of Qazi Ayaz’s book Al- Shifā. But many chapters and information are unique to them and he has expanded this book with his additions and made it a treasure trove of information. This book is a beautiful fusion of the traditions of Muhaddithin and Ahl-e-Siyyar. Because he was not only a muhaddith but also a biographer. Were his greatest service in the learning of Hadith is "Irshad Al-Sārī Sharh Saḥiḥ Bukhārī", there his most significant service in Sira is this book. He has used the traditions of both the narrators and the Biographers in compiling it. In this book, the locks of meanings are opened with the keys of Fatḥ Al-Bārī Li Ibn-e-Hajar ‘Asqalānī. In other words, he has benefited a lot from Fatḥ Al-Bārī Sharḥ Bukhari and has gained a lot of confidence. A large number of scholars have used this book, including Shiblī Nu‘mānī, who has made extensive use of it in his Sirat un-Nabiﷺ . Due to its popularity, many of its rates have been written. The most detailed of these is the Zurqānī rate of Qusṭalānī. The great scholar like Imam Zarqani has commented in eleven volumes of this book, which is proof of its authenticity, noteworthy, and worth reading and treasure. Sheikh Nūruddin Ṭrabulsī gave Sharh and great people like Safiuddin Qasashi, Burhanuddin Ibrahim Maimoni, Shamsuddin Muhammad Shobri Misri and Nooruddin Ali Qari embellished this book with their footnotes. On the one hand, it teaches love and respect for the Holy Prophet ﷺ and on the other hand, it mentions the rights of the Holy Prophet ﷺ and the rewards for their payment. The writing style of the book is simple and smooth as well as eloquent and eloquent. The temptation is not so long that the length will be too long for the reader, nor is it so short that access to the concepts and demands will not be possible due to the brevity. The book has been read by the people and it has been adopted by biographers as an authentic and reliable source. Because of its importance and usefulness, an introductory and analytical study of this book will be presented in this article.

Synthesis, Characterization and Electrochmical Performance of Modified Titania/Carbon Nanotube Composites As Anode Material for Lithium-Ion Btteries

The present efforts in energy storage are directed more towards modifying the secondary battery systems. Titania (TiO2) is an appropriate substitute for anode material in lithium ion batteries (LIBs) owing to its surpassed structural stability and high safety during the prolonged charge/discharge cycles. The low conductivity issues associated with this material has been a constraining factor influencing its rate capability and cycling performance. From this viewpoint, multiwalled carbon nanotubes (MWCNTs), a zero gap semiconductor, with distinctive electronic properties, together with superb electrochemical, thermal, optical, and mechanical properties that are much more than the other carbon allotropes such as diamond, graphite and fullerene. More importantly, MWCNTs has also proved their effectiveness upon compositing with a metal oxide or metallic nanoparticles to augment the electrochemical performance. In this work, M-TiO2/MWCNTs (M = Mn, Ni, Co, Cu) were synthesized by surfactant assisted controlled hydrolysis approach taking the advantage of the synergistic interplay between MWCNTs and M-doped TiO2 leveraging both the electrode performance and stability. Exploiting synchrotron-based spectroscopy (NEXAFS, XANES and ex-situ XRD) and microscopy techniques, we examined the structure of metal-doped TiO2/MWCNTs nanocomposites characterized by varied morphology and structural order at the nanoscale. This entire investigation of the electronic, morphological, and structural properties enabled us to recognize and unveil the electrochemical transformations upon cycling. A convenient, cheap and mild covalent functionalization route for multiwalled carbon nanotubes (MWCNTs) has been developed for the first time. The results consistently iv confirmed the formation of carboxyl functionalities on MWCNTs, while the structure of MWCNTs has remained relatively intact. At an optimal 5% doping of Mn, Ni, Cu and 7% doping of Co the electrode showed 176.4, 241.3, 214.1 and 177.6 mAh g‒1 capacity at C/10 for 80 cycles, moreover an excellent rate capacity is also demonstrated at a sufficiently high rate of 20 C. The lower angle shift and enlargement of TiO2 unit cell from XRD results indicate that metal dopants are substituting Ti atoms from the pure anatase TiO2 matrix. The increase in the intensity of t2g and eg bands in O K-edge NEXAFS point to the effective hybridization between metal 3d and O 2p orbitals. Metal and Ti L3,2 edge from NEXAFS spectra clearly reflect 2+ and 4+ valence states of metal and Ti, respectively. C K-edge NEXAFS provides clear evidence for a charge distribution and chemical bonding between MxTi1-xO2 nanoparticles and MWCNTs. Ex-situ XANES studies of lithiated samples have proved that Ti and metal K edge shifts to lower energy upon increased doping concentration while ex-situ XRD points towards the lattice expansion upon Li-insertion. This work offers new outlooks for electrode fabrication with a deep insight into structural alterations associated with the charging-discharging behaviour in the composite electrodes for battery applications.