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Home > Speculative Study of Rotating Nanofluids over a Stretching Surface

Speculative Study of Rotating Nanofluids over a Stretching Surface

Thesis Info

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Author

Aziz Ur Rehman

Program

PhD

Institute

Quaid-I-Azam University

City

Islamabad

Province

Islamabad.

Country

Pakistan

Thesis Completing Year

2017

Thesis Completion Status

Completed

Subject

Mathemaics

Language

English

Link

http://prr.hec.gov.pk/jspui/handle/123456789/9970

Added

2021-02-17 19:49:13

Modified

2024-03-24 20:25:49

ARI ID

1676727225736

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A nanoparticle phenomenon is interesting due to the fact that it behaves like a bridge between substance and its atomic/molecular structure. As particles of a material break and approach their nano size, their intrinsic properties change quite dramatically. For example, platinum which is an inert element at macro scale becomes a catalyst at nano scale. Similarly silicon insulators become conductors and gold which is solid, inert and yellow, changes itself to a red liquid with unusual catalytic properties at nano scale. Thus nanoparticles have considerably different attributes as compared with particles of the same species and not in nanoscale. Nanotechnology is a rising science of today. It is growing swiftly and has numerous applications in almost every discipline of our daily life e.g., in medicines, foodstuff, chemicals, automobiles and many more. Nanoparticle study is at present a part of focused and systematized notice due to a comprehensive range of its possible uses in biomedical, optical, material manufacturing, transportation, energy and electronic fields. Since last two decades nanofluids have attracted the attention of scientists as an important research topic. Due to their intense use in extremely progressive technical and biomedical devices such as in nuclear reactors, microchips cooling, radiators and nano medications etc., nano particles are quite useful. Being comprised of low molecular mass but high thermal conductance, these fluids are considered to be vastly effective cooling managers. Rotating fluids flow over elastic stretching sheets are fairly apparent in several industrial procedures such as material management conveyers, extrusion of elastic panes and cooling of an endless metal plate in a cooling bath. Furthermore in procedure of glass blowing, constant moulding, and turning of fibres also consist of the rotary flow over enlarging surface. The role of stretching is of vital importance as can be visualized in above procedures in which flow of heat and mass is produced by the stretching practice of surface. The properties preferred for a result of such a progression would mostly rest on two features. First is the rate of cooling of fluid and second is the rate of stretching surface boundary on which liquid is lying. During the engineering procedure, heat transmission level at the stretched surface is deeply perceived as it is much related with the quality of the ultimate product. Keeping in view this outstanding feature of the modern day development engineering, numerous investigators have concentrated their attention on this precise area of study.
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اعجاز صدیقی

اعجاز صدیقی مرحوم
( سید شہاب الدین دسنوی)
مولانا سیماب اکبر آبادی کے فرزند اور رسالہ ’’شاعر‘‘ کے مدیر، اعجاز صدیقی پر ۹؍ فروری ۱۹۷۸؁ء کو دل کا دورہ پڑا اور وہ اسی روز اپنے مالک حقیقی سے جاملے۔
ایک عرصہ سے مختلف امراض کی وجہ سے اعجاز صاحب کی صحت خراب ہوچکی تھی، کئی بار اسپتال میں داخل کئے گئے، اچھے اچھے ڈاکٹروں نے بڑی توجہ اور شفقت سے علاج کیا، مگر بقول شاعر:
الٹی ہوگئیں سب تدبیریں کچھ نہ دوا نے کام کیا
دیکھا ، اس بیماری دل نے آخر کام تمام کیا
اعجاز صدیقی فروری ۱۹۵۱؁ء میں اپنے وطن آگرہ سے بمبئی آئے اور یہیں انھوں نے مستقل سکونت اختیار کرلی، ان کا رسالہ ’’شاعر‘‘ (ماہنامہ) جو پہلے آگرے سے نکلتا تھا، اسی سال سے بمبئی سے شائع ہونے لگا، وہ اس کے معیار کو بلند رکھنے میں انتھک، کوشش کرتے تھے، اردو سے پر خلوص محبت اور اپنے قارئین کو صاف ستھرا ادب پیش کرنے کی کوشش، ان کی زندگی کے دو ایسے نمایاں پہلو تھے کہ جن کی وجہ سے اردو کے اچھے اور اہم لکھنے والوں اور شعراء کا انھیں غیر معمولی تعاون حاصل ہوتا رہا، جس کے سہارے وہ ’’شاعر‘‘ کے بڑے ضخیم خصوصی نمبر نکال سکے، ان میں کرشن چند نمبر، ناولٹ نمبر، افسانہ اور ڈرامہ نمبر اور آخری میں ہم عصر اردو ادب نمبر ہماری زبان و ادب میں قابل قدر اضافہ ہیں، حقیقت یہ ہے کہ مسلسل علالت گرتی ہوئی صحت اور محدود مسائل کے ساتھ ایسے ضخیم اور اچھے نمبر شائع کرنا، بڑی جرأت کا کام تھا، بلاشبہ اعجاز صاحب غیر معمولی قوت ارادی کے حامل تھے۔
اعجاز صدیقی، ذاتی طور پر مشرقی تہذیب اور قدروں کے علمبردار اور رکھ رکھاؤ کے آدمی تھے، انھوں نے لوگوں کے ساتھ اپنے تعلقات اور دوستانہ رسم سالہا سال...

Pemikiran Filosofis Pendidikan Islam (Esensialisme)

Essentialism represents one of the branches within the realm of educational philosophy. The emergence of this perspective can be traced back to a response against the absolutist and dogmatic tendencies of medieval symbolism. Subsequently, it formulates a structured and all-encompassing understanding of humanity and the universe, tailored to the contemporary demands. The essentialist viewpoint in education asserts that a foundational approach, contrasting with a wholly flexible stance, can serve as a foundation for cultivating a steadfast and unwavering outlook, one that is less prone to fluctuations and inconsistency. Consequently, education should be grounded in enduring values that promote stability, have stood the test of time, exhibit clarity, and are deliberately chosen.The essentialist philosophy of education aims to reintroduce a return to traditional culture. Advocates of this philosophy hold the belief that ancient cultures possess numerous virtues capable of benefiting the progression of humanity. Their emphasis is on reverting to cultural practices that have existed since the inception of human civilization, with a primary focus on the cultural advancements that transpired during the Renaissance period, spanning the 11th to 14th centuries AD. The Renaissance was marked by significant efforts to rekindle the realms of science, art, and classical culture, particularly those hailing from the eras of ancient Greece and Rome. In contrast, the Islamic philosophical perspective on education and the concept of essentialism exhibits distinctions. These differences arise from varying interpretations concerning the interrelation between God, human beings, and the natural environment. The philosophical underpinnings of Islamic education find their foundation within the core concepts of Islam, encompassing the Quran and Hadith, as well as insights from distinguished Islamic scholars and thinkers.

Story Telling in the Primary Urdu Classroom: An Innovative Approach

To learn to think more clearly, to speak and to write more effectively, and to listen and to read with greater understanding, these are the goals of the study of language. This dissertation tries to approach these traditional goals by a modern yet an ancient method of teaching language i.e. storytelling. Storytelling is the study of human interaction. During this study I have discussed problems faced by Urdu teachers and their ways of dealing with them. It is often difficult to relate the interest and findings of researchers to their practical needs of the teachers, but it is still essential to take an initiative to introduce and implement innovations. This is the task that I tried to perform but after analyzing the problems I found that it can not be done without a set of board principle. I have tried and struggled to explore an alternative approach of language teaching. I hope this study will guide the Urdu teachers in their future endeavors.