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X-Ray Imaging of Low Energy Focus Plasma

Thesis Info

Author

Shahid Qamar

Department

Deptt. of Physics, QAU.

Program

Mphil

Institute

Quaid-i-Azam University

Institute Type

Public

City

Islamabad

Province

Islamabad

Country

Pakistan

Thesis Completing Year

1994

Thesis Completion Status

Completed

Page

83

Subject

Physics

Language

English

Other

Call No: DISS/M.Phil PHY/183

Added

2021-02-17 19:49:13

Modified

2023-02-19 12:33:56

ARI ID

1676718668386

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بوڑھے پتھر کے آنسو

زمانے ہوگئے
رنجیدہ چہرے پر
ہزاروں جھرّیاں سی پڑ گئیں ہیں ۔۔۔
نمیدہ خواہشوں کو
نوجوانی کی اذیّت کھا گئی ہے
مگر جب مڑ کے پیچھے دیکھتا ہے
تو اشکوں کی قطاریں
سرمئی منظر میں ڈھل کر
٭٭٭

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Islam emphasizes on the establishment of a just society and it is the foremost duty of every Muslim to strive for that. A society can experience peace as long as justice prevails therein; it faces problems only when injustice becomes order of the day. Justice or injustice is the byproduct of human behavior and interaction which at times lead to disputes and conflicts. Justice needs settlement of disputes and conflicts. For that matter it is necessary for judicial system to be in place. The present paper represents a humble attempt to explain and analyze judicial system as developed by the umntah

Synthesis, Characterization and Magnetic Studies of 3D, 3D-4F and 4F Aggregates Using O- and N- Ligands

Graphical Abstract A dysprosium complex was synthesized from tri-ethanolamine and benzoic acid and was characterized through various physical techniques such as infrared, magnetic studies and single crystal X-ray crystallography. Small value of coercivity indicates that it is a soft ferromagnetic material and can resist with external magnetic field without becoming demagnetized. Keywords Dysprosium complex · Tri-ethanolamine · Benzoic acid · Magnetic measurement Abstract A dysprosium complex,[Dy2 (TEA)2(O2CPh)4·2H2O] has been synthesized using TEA (tri-ethanolamine) and benzoic acid. The obtained complex is a dimer in which both of the TEA is linked with two dysprosium ions through the protonated oxygen atoms and the resultant molecule is Centro symmetric. The nature of bonding and structure of the synthesized dimer was explored from infrared, magnetic studies and single crystal X-ray crystallographic technique. The crystal structure of the complex has triclinic crystal system and P-1 space group. Unit cell parameters are: a = 10.0931(4) Å, b = 10.8841(5) Å, c = 10.9441(5) Å, and α = 73.915(2)°, β = 74.833(2)°, γ = 67.764(2)°, V = 1052.54(8) Å3, Dx = 1.801 Mg/m3 and Mr = 1141.84. The complex possesses small value of coercivity which indicates that it is a soft ferromagnetic material and can resist with external magnetic field without becoming demagnetized.