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Home > Synthesis, Characterization and Applications of Zsm-5 and Related Molecular Sieves

Synthesis, Characterization and Applications of Zsm-5 and Related Molecular Sieves

Thesis Info

Author

Shagufta Nasir

Department

Chemistry Department UET

Institute

University of Engineering and Technology

Institute Type

Public

Campus Location

UET Main Campus

City

Lahore

Province

Punjab

Country

Pakistan

Thesis Completing Year

2007

Thesis Completion Status

Completed

Page

113 . HB. ;tabs. ;figure.

Subject

Chemical engineering

Language

English

Other

Call No: 661.06 S 52 S

Added

2021-02-17 19:49:13

Modified

2023-01-06 19:20:37

ARI ID

1676712396529

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پروفیسر فضل الرحمن فریدی

پروفیسر فضل الرحمن فریدی مرحوم
۲۶؍ جولائی کے اخبار میں ڈاکٹر شرف الدین اصلاحی کے انتقال کی خبر کے ساتھ ڈاکٹر فضل الرحمن فریدی کی وفات کی بھی خبر تھی، غم دوگنا ہوگیا، دنیائے علم کی ویرانی سی ویرانی ہے، اس کیفیت خزاں میں شجر زندگی کے اوراق زرد ہوتے جاتے ہیں۔
ڈاکٹر صاحب شیراز ہند جونپور کے مردم خیز قصبہ مچھلی شہر میں پیدا ہوئے، الہ آباد اور علی گڑھ میں اعلیٰ تعلیم حاصل کی، معاشیات کے موضوع میں اختصاص کیا، پہلے مسلم یونیورسٹی اور بعد میں سعودی عرب کی ملک عبدالعزیز یونیورسٹی میں اسی کادرس دیا، اﷲ نے قلب و ذہن کو پاکیزگی بخشی، اسلام کے نظریۂ معاشیات کو عصری نظام سرمایہ داری اور قمار و سود کی گرم بازاری میں یقین و اعتماد کے ساتھ پیش کرکے اس کی بہتری اور برتری ثابت کرنا، اس دور کا فرض کفایہ تھا جس کو پورا کرنے والوں میں فریدی مرحوم کا حصہ بڑا نمایاں ہے۔
تدریس کے ساتھ انہوں نے تصنیف و تالیف کا عمل جاری رکھا، جماعت اسلامی سے متاثر تھے اسی لیے جماعت کے انگریزی ترجمان ’’ریڈینس‘‘ کی ادارت اور دوسری انتظامی ذمہ داریاں بھی وقتاً فوقتاً انجام دیتے رہے، لیکن رسالہ ’’زندگی نو‘‘ ان کے افکار و نظریات کا سب سے موثر ترجمان رہا، وہ اس کے مدیر تھے اور اشارات میں ان کی ادارتی تحریریں اشارات سے زیادہ بینات کی صورت سامنے آتی رہیں۔ خصوصاً معاشی موضوعات پر نہایت معلومات افزا ہوتیں، ان کے افکار کی تہہ میں صرف یہ جذبہ پنہاں ہوتا کہ اسلام کی معاشی تعلیمات کی برکتوں کا اندازہ کرنے کے لیے موجودہ زمانہ کا ماحول سب سے سازگار ہے لیکن ہماری معلومات صرف روایتی مذہبی تعلیمات تک محدود ہیں، آئی ایم ایف جیسے مالیاتی اداروں کو ان کے اسلوب میں بتانے کی ضرورت ہے کہ قرضوں کی...

اندلس میں مسلمانوں کے ادوار حکومت کا تحقیقی و تنقیدی جائزہ

The golden Islamic history cannot be completed without the mention of Spain which was a bright star. It became one of the great Muslim civilizations; reaching its summit with the Umayyad caliphate of the tenth century. The heartland of Muslim rule was Southern Spain or Andulus. Different eras of Muslim rule in Andulus have been described in this research with an aim to highlight their apex and glory they achieved and then a focus on the reasons of their downfall as well. A brief introduction of the rulers in all eras with their major achievements and immersion in evil habits that led to their downfall has been the prime focus of this research. It gives us various glimpses from the course of history to reflect upon Muslim rule in Spain from a new perspective.

Genetic Studies on Isozyme Patterns in Tr1ticum Aest1vum L.

The tribe Triticeae includes three important cereals namely wheat, rye and barley and their wild relatives. Available wheat cultivars have limited genetic variability for resistance to insects, pests and diseases. They also lack tolerance to salinity, drought and other abiotic stresses. In the light og growing evidence of the limited and narrowing genetic pool of advanced wheal cultivars, research on the genetic resources of wild relatives of cultivated wheats becomes increasingly important. Present studies were undertaken with aim to evaluate variability of isoperoxidases and isoainylascs in different tissues of cultivated wheat and its related species. Determination of the chromosomal locations of genes controlling these isozymes was also carried out. The ultimate aim of the studies was to establish biochemical marker(s) characterizing genetic resistance. Current work is an indicative of homology of isoperoxidases and isoamylases at various ploidy levels of wild and cultivated wheats and their relatives. However, differences in relative mobility and absence or presence of certain bands had been noticed among hexaploid, tetraploid and diploid wheats and Aegilops. Results revealed the presence of certain isoperoxidases and isoamylases in Aegilops species which were absent in most of hexaploid wheal accessions. These isozymes could be used to differentiate species of Triticum. Comparison of hexaploid wheat isozymes with progenitors exhibited the presence of certain common bands between diploid, tetraploid and hexaploid species which is an indicative of the contrioution of the respective genomes to hexaploid wheat. Appearance of bands at similar sites in synthetic hexaploid wheat as of ‘CS’ strengthen the evidence about ibe origin of their genome. Variation observed for few bandsbeiwccn natural wheats and synthetic wheat exploited for the improvement of bread wheat. Amphiploid T. aeslivuni - Ae. ovoia exhibited the qualitative pattern of both parents, however, specific band of Ae. ovata had also been noticed. Aneuploid lines of T. aesiivum L. cv. ‘Chinese Spring’ alongwith its disomic control (2n = 6x=42; AABBDD) were utilized lo locate the genes for leaf and root isoperoxidases and isoainylases. Analysis of available nullisomic-tetrasomic lines for chromosomes of group I to 7 of the three genomes in different combinations implicated the involvement of IAS, IBS, 6BL, 7AS, 7AL and 7DS in the synthesis of leaf peroxidases. Homeologous chromosomes 6BS, 6DS and 7AL, 7DL are responsible for the synthesis of root isopcroxidasc. Present studies, by using CS/rye additional lines revealed that grain isoperoxidases of rye are related to chromosome 1 and 7 whereas root peroxidases showed the presence of rye bands cn additional line carrying chromosome 2R and 6R. The zymogram of grain peroxidase of barley indicated the involvement of chromosome 2H. 5H and 6H in the synthesis of grain peroxidases. As far as root peroxidases are concerned results showed the involvement of 2H and 7H. The localization of genes for leaf and root peroxidases on group 1, 6 and 7 genome of wheat and 1R, 6R and 7R of rye is an evidence of homeology between wheat and rye chromosomes. Zymogram analysis of nullisomic, tetrasomic and ditelosomic aneuploid genotypes of wheat cultivar ‘Chinese Spring’ indicated the possible location for the synthesis of leaf isoamylases on 6DS, 7AL and 7DL. Results of root isoamylases demonstrated the involvement of chromosomes IBS, 6BS, 6BL, 6DS and 6DL in the synthesis. The banding profile of CS/rye additional lines suggested the location of genes for leaf amylases on IR, 2R, 3R, 6R and 7P in three different tissues of rye. The studies on CS/barley addition lines exhibited the involvement of 2H, 7H and 5H chromosomes in the synthesis of grain and root amylases respectively. Isoperoxidase patterns of flag leaves have been investigated in diploid, tetraploid and hexaploid wheats and seventeen species of Aegilops. Most of Aegilops species had been screened previously for resistance against karnal bunt (Tilletia indied). Several were highly resistant to the pathogen. T. aestivum lacks genetic resistance. The study was further extended to establish biochemical marker(s) characterizing genetic resistance. In all 44 isozymes were determined, many of them were common in wild and cultivated species. Species of marker specificity belonged to Ae. cylindrica, Ae. ovata, Ae. biuncialis, Ae. crass a. Ae. juvenalis, Ae. vavilovi and Ae. triaristata. The present investigation highlights the peroxidase isozyme variation and practical diagnostic usage of isoperoxidases in wheat improvement.