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Optimization of Spillway Capacity and Dam Height

Thesis Info

Author

Zahoor Ahmad.

Department

Center of Excellence in Water Resources 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

2006

Thesis Completion Status

Completed

Page

ii, 133 . : ill.; diagrs ;

Subject

Economics

Language

English

Other

Hardcover.; Call No: 333.91 Z 1 O

Added

2021-02-17 19:49:13

Modified

2023-01-06 19:20:37

ARI ID

1676712287624

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رضاعت

رضاعت
ابتداء میں چار روز اور بعض روایات میں سات روز آتا ہے کہ آپ ﷺکی والدہ سیدہ آمنہؓ نے آپ ﷺکو سب سے پہلے دودھ پلایا بعد ازاں ابو لہب کی لونڈی ثویبہ نے دودھ پلایا وہ اس طرح کہ ثویبہ نے ابو لہب کو آنحضرت ﷺ کی ولادت کی خوشخبری سنائی اور یہ بھی کہا کہ مرحوم بھائی عبداللہ کے گھر خدا نے فرزند ارجمند عطا فرمایا ہے اس خوشی میں ابو لہب نے اسے آزاد کر دیا ۔ایک روایت میں ہے کہ آٹھ دن آپ ﷺ اپنی والدہ ماجدہ کے پاس رہے ، اس دوران دو تین دن ثویبہ اور چار پانچ دن آپ ﷺ کی والدہ نے دودھ پلایا ۔
عربوں میں یہ رسم چلی آتی تھی کہ اپنے نومولود بچوں کو آٹھویں روز ایک صحرائی عورت کے سپرد کر دیا جاتا تھا جو اسے دودھ پلاتی ‘ہر طرح سے خیال رکھتی اور نہایت اچھے طریقے سے پرورش کا فرض انجام دیتی تھی ۔ صحرائی ماں کے آغوش میں دے دینے کی کئی اسباب ہیں چند ایک یہ ہیں ۔ (۱) عربوں کو اور خصوصی طور پر قریش کو اپنی زبان سے والہانہ محبت تھی وہ شخص قوم کا سردار نہیں مانا جا سکتا تھا جو فصیح نہ ہوتا ۔ اس فصاحت کی غرض سے صحرائی ماحول نہایت احسن تھا کیونکہ شہر کی زبان میں کئی زبانوں کے الفاظ کی آمیزش ہو جاتی ہے ۔ مکہ شہر کا بھی یہی حال تھا کہ دور دراز سے لوگ یہاں خانہ کعبہ کی زیارت کو آتے جاتے تھے ۔ کئی روز یہاں قیام کرتے اسی طرح کچھ لوگ تجارتی مقاصد کے لیے آتے تھے اور یہاں کے لوگوں سے بات چیت ہوتی تھی جس سے شہری زبان خالص نہ تھی بلکہ مخلوط عربی زبان تھی ۔ اس سبب سے قریش نے کچھ دیہاتی قبائل...

دراسة الرتبة النحوية في الجملة القرآنية

The Syntactical Study of the Quranic Phraseology Arabic language renders primal focus on syntactical placement of words in a sentence id est each constituent of the sentence contains some specific placement which connotes the propriety of the sentence and it plays a vital role in its structural unity. It ought to be kept in mind that ancient syntacticians had unanimously concluded the primal role of specific placement. They highlighted its various forms as in some conditions constituents of a sentence can be replaced from its specific structural placement, for instance, object is placed in place of subject as in “ jaa ni alqom”( جاءني القوم) the people came to me. While in some other cases and conditions such replacement is not admissible and if such re-structure is made, it will dilute the connotation, for instance, the positions of conjunctive pronoun before the principal clause, adjective with noun, possessive noun with the noun-possession and the conditional clause with the sub-ordinate clause are not admissible otherwise all these re-placement of the constituents in a sentence will cause the deformation of structure and implications.

Phytochemical Studies on Th Chemical Constituents of Xanthium Strumarium Linn, Synthesis in Addition Bioactivities of 2, 3-Diaminonaphthaleneimidazole Derivatived and Amides of Piperic Acids

This dissertation has been divided into four chapters. Each chapter has its own numbering of compounds and references. The general introduction describes the importance of natural products and the drugs based on them. The chapter 1 deals with the phytochemical studies on the chemical constituents of Xanthium strumarium Linn. The introduction provides a review of the earlier contributions made in the chemistry and pharmacology of the genus Xanthium and a brief account of the present work. Studies undertaken on different fractions of methanolic extract (XS-HX, XS-DC, XS-EA, XS-BU and XS-ME) of the air dried aerial parts of X. Strumarium Linn. showed weak to moderate antibacterial and weak antioxidant activity except ethyl acetate fraction (XS-EA) which exhibited moderate to high antibacterial and antifungal activity (Table-2, 3) while significant antioxidant activity (Table-4) was observed among all fractions. Studies undertaken on the bioactive ethylacetate fractions led to the isolation and structure elucidation of eight known compounds. The known compound (1) is reported for the first time from X. strumarium Linn. The constituents obtained are listed below. I. Lupenyl acetate (1) II. Stigmasterol (2) III. β-Sitosterol (3) IV. Palmitic acid (4) V. β-Amyrin (5) VI. Oleanolic acid (6) VII. β-Sitosterol-3-O-β-D- Glucopyranoside (7) VIII. Ferulic acid (8) The structure of all the isolated compounds have been determined through various spectroscopic techniques such as, IR, EIMS, HR-EIMS, 1H-NMR, 13C-NMR, 2DNMR and also by comparison of their spectral data with those reported in literature. Chapter 2 is about characterization and bioassay screening of thirty five (35) synthesized derivatives of 2, 3-diaminonaphthalenimidazole (65-99). Out of these thirty five naphthalenimidazoles, twenty six (26) (65, 66, 68, 69, 70, 72, 74, 75, 76, 77, 78, 79, 80, 82, 84, 85, 86, 88, 90, 91, 93, 94, 95, 96, 97, 98) are newly synthesized compounds. All synthesized derivatives showed interesting in vitro enzyme inhibitory (urease, tyrosinase, acetylcholinesterase and butrylcholinesterase inhibitory), antimicrobial and antioxidant activities. Two compounds 81 and 85 revealed potent in vitro tyrosinase inhibitory activity. On the other hand compounds 65, 66, 68, 69, 71, 79, 88 and 94 were found moderately active for this activity. When tested for their in vitro butrylcholinesterase inhibitory activity, three compounds 65, 66 and 79 exhibited good activity while compounds 67, 81, 82 and 89 showed moderate butrylcholinesterase inhibitory activity but all synthesized compounds were found inactive for acetylcholinesterase inhibitory activity. In urease inhibitory activity two compounds 71 and 90 revealed good activity while moderate activity was observed in compounds 65, 66, 68, 81 and 82. All synthesized derivatives when screened for their anti-microbial activity, only two compounds 90 and 92 were found exhibiting remarkable activity against bacterial strains B. cereus, B. subtilis, S. epidermidis, S. paratyphi A, Enterobacter and S.dysenteriae. Significant activity against Enterobacter and S.dysenteriae was displayed by 99 and moderate activity was found in compounds 65, 74, 81, 82, 85 and 94 against various tested bacterial strains. All synthesized compounds showed weak antifungal activity. For in vitro antioxidant activity, the compounds 65, 68, 77, 90, and 99 revealed promising whereas compounds 79, 82, 85 and 95 showed good antioxidant activity. Chapter 3 describes the synthesis, structure elucidation and biological activity of fifteen (15) amides of piperic acid (42-56). Five compounds (47, 51, 52, 54, 56) are new amides. All the synthesized derivatives were evaluated for their in vitro anti-microbial, nematicidal and anti-oxidant activity. In the case of antimicrobial activity compound 54 was found the most active against all applied bacterial strains except S. pneumoniae, compound 49 showed excellent activity for P. vulgaris and 53 was good against P. stutzeri where as compound 44, 46, 47 and 48 showed good activity against P. aeruginosa. It was determined that compound 50 was active against S. aureus, P. stutzeri and P. aeruginosa. Compound 52 showed good activity against P. aeruginosa and E. coli whereas compound 56 exhibited activity against E. coli only. It was observed that among all the synthesized amides only compound 54 showed antifungal activity against all applied fungal strains. When screened for nematicidal activity compounds 42, 43, 45, 47, 52 and 56 were found possessing excellent nematicidal activity against root-knot nematode, Meloidogyne incognita, where as compounds 44, 50 and 54 have significant mortality rate. During antioxidant testing three compounds 44, 49 and 51 showed significant and two compounds 46 and 54 showed moderate DPPH radical scavenging property. Chapter 4 deals about introduction of biological activities and all the protocols used to determine the inhibitory potential of all fractions and synthesized compounds.