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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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فقیروں کا بھٹو

فقیروں کابھٹو

1968ء یا 69کی بات ہے ذوالفقار علی بھٹو اندرونِ سندھ کے دورے سے اپنے گھر لاڑکانہ واپس جا رہے تھے اور سخت بخار کی حالت میںتھے ۔ان کی گاڑی ممتاز بھٹو چلا رہے تھے شہداد کوٹ اور قمبر کے نزدیک ایک مزار کے فقیروں ،ملنگوں اور درویشوں کو بھٹو کی آمد کا پتہ چلا تو انہوں نے بھٹو کی گاڑی کو وارہ پل کے مقام پر گھیر لیا ۔ممتاز بھٹو نے لاکھ سمجھانے کی کوشش کی کہ بھٹو صاحب کو بخار ہے مگر نہ مانے اور انہیں اپنے ساتھ آستانے پر لے جانے پر بضد رہے ۔ذوالفقار علی بھٹو ان کا مطالبہ مان کر ان کے ساتھ گئے ۔وہاں فقیروں ،ملنگوں اور درویشوں نے بھٹو کو اپنے ساتھ چرس اور بھنگ پینے کی پیشکش کی ۔بھٹو نے کہا آپ چائے پلا دیں ۔اسی وقت ان فقیروں نے گڑ کی چائے بنا کر پیش کی اسی دوران ایک ملنگ نے درباروں والا مخصوص ہار اپنے گلے سے اتار کر بھٹو کے گلے میں ڈال دیا ۔بھٹو تیز بخار کی صورت میں کچھ دیر وہاں فقیروں کے ساتھ بیٹھے اور پھر اجازت لے کر وہاں سے لاڑکانہ چلے گئے ۔

ان فقیروں ،ملنگوں اور درویشوں اوران جیسے کروڑوں لوگوں نے …جنہیں پیپلز پارٹی مدت ہوئی فراموش کر چکی ہے ،آج تک بھٹو کو اپنے دلوں میں بسایا ہوا ہے ۔

 

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Hypertriglyceridemia is third prevailing cause of acute pancreatitis after biliary and alcoholic etiology. It accounts for 1 to 4% cases of pancreatitis. Present case describes a thirty years old diabetic male, who presented in emergency with pain in the abdomen and yellow discoloration of the skin. He was admitted with suspicion of diabetic ketoacidosis (DKA), but no improvement was seen after DKA treatment. His laboratory investigations showed normal serum amylase levels and dyslipidemia with raised serum triglycerides levels. He was diagnosed as acute pancreatitis secondary to hypertriglyceridemia, which is considered as a rare cause of acute pancreatitis.

Development of a Model of Organizational Citizenship Behavior Ocb : A Comparative Study of University Teachers from a Developing and a Developed Country

Extra-role behavior also called organizational citizenship behavior is critical for organizational effectiveness. The purpose of this study is to develop and test an integrated model of organizational citizenship behavior based on the framework of organizational effectiveness suggested by Katz (1964) in the specific context of university teachers. The study is specifically aimed at finding the individual and joint direct and indirect effect of human resource management practices (HRP) and transformational leadership style (TSF) on affective organizational commitment (AC) and organizational citizenship behavior (OCB) of university teachers in Pakistan (developing country) and England (developed country). No other study has modeled these variables together. Data was collected through mailed and self-administered questionnaires consisting of standardized scales. Two samples of university teachers, one from Pakistan (n=402) and other from England (n=188), based on complex probability sampling were used in the study. One-way ANOVA was used to find the association of demographic factors (public and private nature of university, designation, qualification, tenure, gender, marital status and age) with affective commitment and citizenship behavior of university teachers. It was found that most of demographic characteristics caused significant variation in both affective commitment and citizenship behavior of teachers in both Pakistan and England. Correlation analysis showed significant positive associations among all four study variables. Stepwise multiple regression analysis was used to find direct effect of predictors (HRP and TSF) on mediating (AC) and dependent (OCB) variables and indirect effect of predictors on dependent variable with mediation of affective commitment both jointly and individually. It was found that HRP and TSF have significant direct effects on both AC and OCB in Pakistan and England individually as well as jointly. AC is also significantly related to OCB in both Pakistan and England but variation explained by AC in OCB in England is substantially higher than in Pakistan. AC is also found perfectly mediating the relationship between both predictors and OCB in all three cases (1. HRP-AC-OCB, 2. TSF-AC-OCB, 3. HRP,TSF-AC-OCB) in England while in Pakistan mediation of AC is just partial in all of these cases. Results have been discussed in the light of past studies and implications for managers and researchers have also been suggested.