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Punkettes-Type Notes

Thesis Info

Author

Iqra Zahid

Supervisor

Yawar Abbas Zaidi

Department

Department of Architecture

Program

BDE

Institute

COMSATS University Islamabad

Institute Type

Public

City

Islamabad

Province

Islamabad

Country

Pakistan

Thesis Completing Year

2017

Thesis Completion Status

Completed

Subject

Architecture

Language

English

Added

2021-02-17 19:49:13

Modified

2023-01-06 19:20:37

ARI ID

1676719566335

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ڈاکٹر مصطفی حسن علوی

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افسوس ہے اسی مہینہ ڈاکٹر مصطفےٰ حسن صاحب علوی کاحادثہ وفات بھی پیش آگیا۔اس وقت ان کی عمر۸۶برس کے لگ بھگ تھی، ان کا اصل وطن کاکوری تھا۔ اردوزبان کے مشہور نعت گو جناب محسن کاکوروی کے خاندان سے تعلق رکھتے تھے، دارالعلوم دیوبند کے فارغ التحصیل تھے۔ حضرت شیخ الہندؒ سے حضرت شیخ کے درس بخاری کے آخری سال میں دورۂ حدیث کی تکمیل تھی اوراس کے بعد حضرت مولانا مفتی عزیز الرحمن ؒ نے دیوبند کی جامع مسجد میں ان کودستار فضیلت عطا فرمائی تھی، اس حیثیت سے وہ غالباً حضرت شیخ الہند کی بزم تلامذہ کے آخری چراغ تھے، اب تودیوبند سے فارغ التحصیل ہونے کے بعد اعلیٰ انگریزی تعلیم حاصل کرنے والے کثرت سے نظر آتے ہیں، لیکن غالباً مرحوم پہلے شخص تھے جنھوں نے دارالعلوم دیوبند سے باقاعدہ فارغ ہونے کے بعد انگریزی تعلیم شروع کی۔ لکھنؤ یونیورسٹی سے ایم۔اے کرکے پی ایچ۔ ڈی کی ڈگری حاصل کی، اس کے بعد وہ ایک عرصہ تک لکھنؤ کے شعبۂ علوم مشرقیہ سے منسلک رہے۔ آخر میں چندبرس شعبۂ عربی میں بھی کام کیا، عربی بولنے اور لکھنے کا بڑا شوق تھا۔شعرو شاعری کا ذوق موروثی تھا،لکھنؤکی زبان اور اس کے رنگ میں غزلیں لکھتے اور ترنم سے پڑھ کر ارباب ذوق سے داد لیتے تھے۔ تصنیف وتالیف کا بھی ذوق تھا۔ان کی آخری کتاب ’’قائدبدرواحد‘‘ تھی جس پر بہار اردو اکیڈیمی نے انعام دیا تھا۔علاوہ ازیں عرصہ ہواان کو صدر جمہوریہ کی طرف سے عربی کاایوارڈ بھی ملا تھا۔ دارالعلوم دیوبند سے بڑی محبت تھی، اس کی مجلس شوری کے ممبر عرصۂ دراز سے تھے اور پابندی سے اس کے جلسوں میں شرکت کرتے تھے مگرادھرچند برس سے بتقاضائے عمر ضعف ونقاہت کے باعث شوریٰ کے جلسوں میں شرکت کامعمول نہیں رہا تھا۔عجب اتفاق ہے مارچ۱۹۸۰ء میں جواجلاس صد سالہ...

لفظ خاتم کا معنی و مفہوم ائمہ لغت ومفسرین کے اقوال کی روشنی میں ایک تحقیقی جائزہ

Almighty Allah Has bestowed us with more than one lakh andtwenty four thousand prophets for guidance of human being. It started with Hazrat Adam As and end up with hazrat Muhammad (PBUH). As it was endedwith hazrat Muhammad PBUH, so he was called with the title of ‛. ‚خاتم; النبیینThe Holy Prophet PBUH himself said “No Prophet will come after me”. Thisbelief keep pivotal value among all beliefs. According to Muslim scholars, anyone who has doubt on finality of Prophethood will be considered nonMuslim. Therefore in this article the word ‛ ‚خاتمis analyzed comprehensively in the light of various sayings of different Muslim scholars

Fabrication of Α-Hematite/Ferrite Composite Thin Films on Planar and Three-Dimensional Nanostructured Substrates for Photoelectrochemical Water Splitting

Inspired from the natural photosynthesis in which solar radiation is being effectively utilized in photoconversion of simple compounds (H2O and CO2) into carbohydrates and oxygen, scientists are dragged toward artificial photosynthesis for obtaining important chemicals from cheap and sustainable sources. The efficient conversion of solar energy into clean form chemical energy is the concept that is considered to be effective solution of world’s growing issues i.e. increasing demand of the fossil fuels and global warming. Hydrogen is considered as the fuel of the future because it has more energy capacity than fossil fuel, yielding zero carbon emission and has competency to replace the fossil fuels being used in different sectors. Photoelectrochemical (PEC) splitting of water is considered as one of the most promising technology by which solar energy could be efficiently utilized in hydrogen generation from its cheap and abundantly available source i.e. water. In this work, we focussed on the use of α-hematite/ferrites composite thin films as electrode material for photoelectrochemical water oxidation. Based on the band gap and their band alignment knowledge, three different series of composite thin films i.e. (1) CuFe2O4/α-Fe2O3, (2) ZnFe2O4/α-Fe2O3 and (3) NiFe2O4/ α-Fe2O3 were deposited on planar and 3-dimentional (3-D) nanostructured substrates. The fabricated devices were then structurally and morphologically characterized by various techniques and evaluated for photoelectrochemical water oxidation applications. It has confirmed that the ratio between the components of the composite thin films is crucial, so the highest activity results were obtained by the thin films devices having equal molar ratio (1:1) between α-hematite and ferrites in all the three classes. Among CuFe2O4/α-Fe2O3 composite thin films series, the CF-1, having 1:1 molar ratio between CuFe2O4 and α-Fe2O3 showed the highest activity. This composite when deposited on planar FTO coated substrate showed the highest photocurrent density of 1.24 mA/cm2 at the applied voltage of 1.23 VRHE and retained the photoconversion efficiency of 0.14%. The same material when deposited on 3-D nanostructured substrate, an increase in the photocurrent density upto 2.2 mA/cm2 at the same applied voltage was recorded. Among ZnFe2O4/α-Fe2O3 composite thin films, we found that nanostructured device (ZF1-NSP) having molar ratio of 1:1 between their components retained the highest photocurrent density of 2.19 mA/cm2 and showed the photoconversion efficiency of 0.22%. This photocurrent density is 3.4 and 2.73 times higher than photocurrent density values of pure hematite on planar FTO and the highest reported value of ZnFe2O4/α-Fe2O3 composite, respectively. Among NiFe2O4/α-Fe2O3 composite thin films, the highest photocurrent density of 2.1 mA/cm2 at 1.23 VRHE was obtained for the composite device having 1:1 molar ratio of NiFe2O4/α-Fe2O3 iii deposited on 3-D nanostructured substrate (NF1-NSP), which was 3.3 times more photocurrent density than pure hematite. It has been verified by electrochemical impedance spectroscopy (EIS) that α-hematite/ferrite composite thin films have greater conductivities of charge carriers than α-hematite and the highest values of charge conductivities were obtained for the composites consisting of equal molar ratio between α-hematite and ferrite. Based on photoluminescence studies, the photogenerated charge recombination has also been decreased by increasing ferrite component in α-hematite/ferrite composite. So, the better activities of α-hematite/ferrite composite in PEC water oxidation is provided by greater electrical conductivity and reduced charged recombination as compared to pure α-hematite. The performance of 3-D nanostructured devices in photoelectrochemical water oxidation were much greater than planar devices with the similar composite thin films. The three dimensional architecture of the electrode offers large surface area for the redox reaction and larger capability to harvest visible light for enhancing the performance of 3-D nanostructured electrode as compared to planar electrode.