Search from the Journals, Articles, and Headings
Advanced Search (Beta)
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...

غزل

کشتیوں سے اتر نہ جائیں کہیں

لوگ طوفان سے ڈر نہ جائیں کہیں

 

زندگی ہے کہ آگ کا دریا

شدت غم سے مر نہ جائیں کہیں

 

جن کو ظلمت نے باندھ رکھا ہے

چاندنی میں بکھر نہ جائیں کہیں

 

روک اشکوں کو اب سر مژگاں

یہ بھی حد سے گزر نہ جائیں کہیں

 

آؤ لکھ لیں لہو سے عہد وفا

قول سے ہم مکر نہ جائیں کہیں

 

ان کی یادوں کے زخم اے عالمؔ

وقت سے پہلے بھر نہ جائیں کہیں

سیرت طیبہ پر قسِیس زکریا بطرس کی تنقیدات کا تجزیاتی مطالعہ

The Critiques of Zakaria Boutros on the Noble Seerah of the Holy Prophet Muhammad: An Analytical Study Islam is not only a true divine religion but an all-embracing way of life. Prophet Muhammadﷺ is the perfect and ideal role model for the whole mankind. Hisﷺ holy life is open to all in each and every aspect. Hisﷺ noble footsteps and teachings give complete guidance in every walk of life. It has been observed that Jews and Christians’ religious scholars and Orientalist study the Quran, Hadῑth, Islamic History, Culture and Civilization, generally, to deduce negative and subjective conclusions, pretending that they are studying objectively. Father Zakaria Boutros is one such priest from the Middle East. Basically, he is an Egyptian Coptic priest and an active Evangelist. He is a controversial figure in that country for his scriptural studies of Islamic texts. For the last sixty years, he has misguided hundreds of people especially Muslims through his missionary activities and maligning campaign against Islam in the form of booklets, Television programs, Internet services such as Paltalk and personal official websites etc. He has tried to distort facts and to present Prophet Muhammadﷺ in such a way that the attraction of Islam be decreased in the eyes of non-Muslims and doubts be produced among the simple-minded Muslims. In the article under reference, some selected critiques and objections on Prophet Muhammad (ﷺ) related to the birth period (pregnancy duration), lineage, sources of knowledge and accusation of worshipping the black stone, are thoroughly analyzed and responded in a scholarly way.

Numerical Simulation of Complex Flows of Fibre Reinforced Composites

Complex laminar flows of incompressible fluids have been investigated numerically. Both Newtonian and generalised non–Newtonian fluids are simulated, whilst for generalised non–Newtonian fluids, two shear thinning models, i.e., Bird–Carreau and Power law, are employed. Both models are. For numerical investigation the flow problem adopted is two–dimensional axisymmetric periodically constricted tube. The frame of reference used in the investigation is cylindrical polar co–ordinates. For the simulation two–dimensional momentum transport equation is solved using a Finite Element Method (FEM). Numerical scheme used is known as Taylor–Galerkin/pressure–correction algorithm. In open literature this problem is simulated only for single aspect ratio (amplitude) of the undulation in the absence of fibres. Whereas, in this research investigation principal aim is introduction of fibre reinforced composite material. Different aspect ratios of undulation are also simulated at various inertial forces. For comparison purpose with other experimental results as well as numerical prediction, initially, flow is considered for constant viscosity Newtonian fluids through periodically constricted tube. Subsequently, from dilute to semi–dilute rigid rod like fibre suspended in all fluid models, i.e., constant viscosity, Bird–Carreau and Power law fluids have been examined. For different undulation levels of periodically constricted tube, the critical values of the Reynolds number have been identified, where beginning of embryo recirculation region starts. As inertial force increases, augmentation of vortex is observed in the undulation region. While, introducing fibres vortices shrinks in length and intensity. For Newtonian, power law and Bird–Carreau models pressure isobars are also demonstrated. In all levels of fibre concentration, the graphical illustration of calculated data for friction factor as well as empirical relationships is illustrated for all undulation aspect ratios.
Asian Research Index Whatsapp Chanel
Asian Research Index Whatsapp Chanel

Join our Whatsapp Channel to get regular updates.