سیرت طیبہ میں بلدیاتی نظام (میونسپلٹی) اور بنیادی عوامی سہولیات کے خدوخال

This study examines the community services and facilities provided seeking for, (صلى الله عليه وسلم) Prophet Holy of life the in Madinah of State the in guidance in the social development of community by fulfilling the basic needs of citizens in the modern-day. By declaring Medina a first Muslim state, the Holy Prophet (ﷺ) rendered invaluable services for the betterment of his people. He stressed upon providing fundamental rights of the human beings. The focus of this article is to shed light upon the ways of providing the most important needs of the citizens, which have been insured in the state of Madīnah, especially but not limited to those of a Muslim community. Nonetheless, it further elaborates how a civil government can provide the basic infrastructure, development of roads, religion abodes, supplying clean water, and promotion of peace and harmony among the people, and the rights of minorities in the light of Sīrat-e-Ṭayyibah. The method used in this article is descriptive and analytical study of the relevant Aḥādith, and building arguments on it. This study concluded State the in municipality the of foundations the led (صلى الله عليه وسلم) Prophet Holy that of Madīnah, and the basic needs of food, shelter, clean water. It ensured a peaceful society. Moreover, it is suggested that these aspects and teachings of Sīrat should be blazoned widespread to pave the way for social development, peace and harmony.

Tunable Metamaterials

Metamaterials (MTM) are composite materials that provide some unique characteristics which are not available by nature. But there is one major drawback or limitation of MTM which is its fixed and narrow working frequency region. To overcome this limitation, there are few techniques, presented in this thesis, to vary the working frequency band of MTM. As MTM are artificial materials, so there are various resonators available in literature, presented for MTM. In this thesis, three resonators, split ring resonator (SRR), S-shaped resonator (SSR) and single side paired S-ring resonator (SSPSRR) have been chosen from literature and different techniques to shift their resonant frequencies are presented. For SRR, a tunable case i.e., inner ring shorted split ring resonator (IRS-SRR) is pre- sented in this thesis. The analytical expression of the effective permeability of IRS-SRR is calculated and for the verification of the analytical work, the experimental results are also included in this thesis. The analytical expression for the effective permeability of SSR is also presented in this thesis. Two tunable or modified cases of SSR, i.e., bottom metallic strips shorted S-shaped resonator (BSSR) and top-bottom metallic strips shorted S-shaped resonator (TBSSR) are presented in this thesis. The analytical expressions of the effective permeabilities of BSSR and TBSSR are also calculated. For verification of the analytical work of SSR, BSSR and TBSSR, experimental results are included in this thesis. Similar to SSR, the analytical expression of the effective permeability of SSPSRR is presented in this thesis and the experimental results are also included to verify the analytical work. Two tunable cases of SSPSRR, i.e., bottom metallic strips shorted single side paired S- ring resonator (B-SSPSRR) and top-bottom metallic strips shorted single side paired S-ring resonator (TB-SSPSRR), are also presented in this thesis along with experimental results. Other than the tunable cases of various resonators, rotation of resonators is presented in this thesis as a technique to vary the working frequency of MTM. This technique has been applied on SSR, SSPSRR and their respective tunable cases in this thesis and the vexperimental results are presented for justification of this technique. There are number of devices (made using MTM), are available in literature. All these devices can be upgraded to work as tunable devices using the techniques presented in this thesis.