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Peristaltic Transport of Nanofluids in Tubes and Channels

Thesis Info

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Author

Shahzadi, Iqra

Program

PhD

Institute

Quaid-I-Azam University

City

Islamabad

Province

Islamabad.

Country

Pakistan

Thesis Completing Year

2018

Thesis Completion Status

Completed

Subject

Mathemaics

Language

English

Link

http://prr.hec.gov.pk/jspui/bitstream/123456789/12923/1/Iqra_Shahzadi_Maths_HSR_2018_QAU_14.09.2018.pdf

Added

2021-02-17 19:49:13

Modified

2024-03-24 20:25:49

ARI ID

1676726860964

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In the current study, we have considered the impact of inclined magnetic …eld and metallic nanoparticles on the peristaltic ‡ow of nano‡uid in an annulus with convective boundary conditions. The impact of emerging parameters on ‡ow quantities are described via graphs. Some crucial observations of the present analysis are mentioned as, Signi…cant addition of Cu and Ag nanoparticles increases the heat transfer rate in the existence of Biot number. Pro…les of velocity exhibit higher results for silver blood than for the copper blood and pure blood. The velocity pro…le reduces when we strengthen the applied magnetic …eld. It is observed that the velocity increases for convective parameter. Pressure gradient increases with increasing nanoparticle volume fraction. In retrograde pumping region, the pressure rise enhances for Biot number. Pressure rise enhances due to the impulsion of metallic nanoparticles when compared to that of the pure blood ('' = 0:00): Silver and copper nanoparticles show opposite behavior on the number of trapped bolus. Trapping phenomenon show that the circulating bolus increases as we consider the horizontal to the vertical annulus case.
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حدود کے نفاذ کی ضرورت

حدود سے مراد اللہ کی حدود ہیں جن میں مداخلت اللہ کی سلطنت میں مداخلت ہے ۔ اللہ تعالیٰ نے انسانوں کو لا تعداد امور میں اپنی عقل استعمال کرنے کی اجازت دی ہے ۔ بےشمار ناپسندیدہ افعال اور جرائم ایسے ہیں جن کی سزا قاضی یا حاکم کی صوابدید پر چھوڑ دی گئی اور یوں شخصی آزادی کا اہتمام کیا گیا، لیکن کچھ افعال کو حرام قرار دینے کے بعد ان کی سزا اور اس کے متعلقات کے لیے حد کی اصطلاح خود اللہ تعالیٰ نے وضع کی ۔ زنا ، قذف ، خمر ، سرقہ، حرابہ، ارتداد اور بغی حرام ہیں اور ان کی سزائیں بھی اللہ تعالیٰ نے خود مقرر فرما دی ہیں۔ اس سے بخوبی اندازہ لگایا جا سکتا ہے کہ اللہ تعالیٰ کے نزدیک ان افعال پر سزائیں کس قدر اہم ہیں ، جیسا کہ سورۃ البقرہ میں اللہ تعالیٰ تنبیہ فرما رہے ہیں
﴿تِلْكَ حُدُودُ اللَّهِ فَلَا تَعْتَدُوهَا وَمَنْ يَتَعَدَّ حُدُودَ اللَّهِ فَأُولَئِكَ هُمُ الظَّالِمُونَ۔ ﴾30
"یہ اللہ کی مقرر کردہ حدود ہیں ، ان سے تجاوز نہ کرو اور جو لوگ حدود اللہ سے تجاوز کریں، وہی ظالم ہیں۔ "
آپ ﷺ نے رحمت للعالمین اور امت پر شفیق ہونے کے باوجود حدود کے معاملے میں یوں تنبیہ فرمائی
"أَلاَ وَإِنَّ لِكُلِّ مَلِكٍ حِمًى أَلاَ وَإِنَّ حِمَى اللَّهِ مَحَارِمُهُ۔ "31
"خبردار ! ہر بادشاہ کی ( کوئی نہ کوئی) چراگاہ ہوتی ہے اور ( یاد رکھو) اللہ کی چراگاہ اس کے محارم ہیں۔ "
لفظ "حمی" عربی ادب میں اپنے مجازی معنوں میں اگرچہ "چراگاہ "کے لیے استعمال ہوتا ہے لیکن فی الاصل اس کا صحیح ترین معنی "علاقہ ممنوعہ "ہے ۔ یہ علاقہ ممنوعہ اللہ تعالیٰ کی خاص سلطنت کی حدود بھی ہو سکتا ہے ، یہ اس کی خلوت گاہ بھی ہو سکتا ہے اور اس کے...

برصغیر کی نادر فارسی تفسیر تبجیل التنزیل (جزء سورۃ الفاتحہ) کا تحقیقی مطالعہ

The intellectual heritage in British–India includes literature of Christian missionaries which focusses missionary perspective and the literature of Muslim missionary in response. In this Case, literature based on polemic method from both sides has become quite important. Specialists of Muslim Christian relations and religious students should be aware of debates of this ere. The criticism on Quran seems quite abundance on social media from opponents and enemies as well as their efforts are quite evident on minds of habitual valiance to precariousness and skepticism. That’s why, the preacher and student of Islamic religion should bring in light the effort being made by Muslim scholars in response to their claims. One of selected flowers in the caravan of Muslim scholars is Abu Mansoor Dehlvi (1902 AD). Tabjil al Tanzil is one of the prominent Quranic Interpretation which focuses on the replies to objections raised against Islam and Quran by Christians in Sub continent. In this paper, author tried to find out this un-published interpretation (as it is supposed) and analyzed its first part containing on surah al fatiha (manuscript). In the result, he finds that polemic method is prevailed. And objections against Islam has been silently condemned.

Post Harvest Storage Stability of Kinnow Mandarin Through Applications of Silver Nanoparticles Based Coatings

Influence of carboxy methyl cellulose (CMC) and guar gum based silver nanoparticles containing coatings was studied on the postharvest storage stability of kinnow mandarin (Citrus reticulata cv. Blanco) stored at 4 oC and 10 oC (85-95% relative humidity) for a period of 120 days. Physicochemical qualities, microbiological evaluations, quantities of three major aroma compounds (limonene, linalool, γ-terpinene) and sensory attributes were monitored after every 15 days of storage. Microbiological quality was assessed by monitoring the principal spoilage microbes (yeast and moulds, psychrotrophic bacteria, E. coli, Salmonella and Staphylococcus aureus). Sensory evaluation was carried out using 9 point hedonic scale by a panel of 25 experienced penalists for peel colour, flesh colour, juice colour, fruit texture, fruit taste, fruit flavour and overall acceptability. Overall, the results revealed an increase in peel pitting, total soluble solids (TSS), total sugars, reducing sugars, non-reducing sugars, pH and weight loss in the fruits, but this increase was comparatively less significant in coated fruits stored at 4 oC. Ascorbic acid, total phenolics and antioxidant activity were significantly enhanced in coated fruits stored at 4 oC. Titratable acidity was significantly decreased during storage except for coated kinnow stored at 4 oC. In control samples stored at 10 oC, a high intensity of fruit rotting and no chilling injury was observed. Total aerobic psychrotrophic bacteria, and yeast and moulds were noticed in all treatments during storage, but the growth was not significant in coated fruits at 4 oC. Staphylococcus aureus was not noticed in coated fruits stored at 4 oC, while E. coli and Salmonella were not found in any treatment during storage. Limonene, linalool and γ-terpinene concentrations were significantly reduced during storage in uncoated, and those kinnows coated and stored at 10 oC. However, the storage did not alter the qualitative aroma profile of kinnow. Hedonic scores of sensory evaluation panel appeared to correlate well with the aroma profile and manifested the GC-MS results. Based on the present study, the quality of kinnow fruit can be kept good for 4 months, when stored at 4 oC and for 2 months at 10 oC.