Atom Theses Samples For Students

Iridium organometallic complexes

Introduction
Iridium organometallic complexes are applied as catalysts, light-emitting diodes, dye-sensitized solar cells, and luminescent agents for cells imaging.1 Due to the wide application area, the scientists perform research on preparation, characterization and physical and chemical properties of iridium organometallic complexes.

The oxidation state in complex compound refers to the charge of the metal, which it would have in a simple ionic compound. The configuration of d-orbitals (dn) indicates the number of valence electrons in free metal of the same oxidation state. The iridium electronic configuration is [Xe] 4f145d76s2, yet the s-electrons transfer to d-orbital to form 5d9. The ...

Chapter 1

Introduction

XX century was characterized with the significant technological progress, which has improved the life of people. Numerous products and services became available, labor and domestic life became easier and more comfortable. However, waste problem is the other side of the technological progress. The solid, liquid and gas waste are formed, and thus land, natural water and air quality degrade. Therefore, in XXI century the research efforts are dedicated to development of methods for sustainable use of water, gas, and solid resources.
Wastewater polluted with dye residuals originate from textile, leather and food industry. These industries produce goods that ...

Introduction:

Nanobiotechnology serves as an imperative technique in the development of clean, nontoxic, and eco-friendly procedures for the synthesis and congregation of metal NPs having the intrinsic ability to reduce metals by specific metabolic pathways. Silver nanoparticles are particularly interesting nanoscale systems due to the ease with which they can be synthesised and modified chemically. Synthesis of silver nanoparticles has been widely researched due to their interesting size and shape-dependent properties [26]. These novel properties can be tailored by controlling their size, shape, composition, structure and crystallinity. Due to their size features and advantages over available anti-microbial properties, chemical imaging ...

I hereby certify that this material, which I now submit for assessment on the program of study leading to the award of BACHELOR OF ENGINEERING HONOURS (MANUFACTURING AND DESIGN ENGINEERING) is entirely my own work and has not been submitted for assessment for any academic purpose other than in partial fulfillment for that stated above.

Signed

Hussein Al-Tuhoo
ACKNOWLEDGEMENTS
I have been indebted in the preparation of this thesis to my supervisor, Dr Maura Kelleher of Dublin Institute of Technology College, whose patience and kindness, as well as her academic experience, have been invaluable to me. I am extremely grateful ...

Introduction

It is generally noted that the development of dosimeters to measure neutron exposures has been slow for many years in comparison to the development of gamma and x-ray dosimeters. Exposures to x-rays and gamma rays have been determined from glass dosimeters and film badges. By applying these dosimeters, personnel exposure to radiations caused by radioactive substances can be measured to standard accuracy. However, the uncertainty may arise due to variation in readings as a result of orientation of the wearer of the dosimeter to the source during exposure. On the other hand, NTA film has been the only neutron dosimeter ...

Section 1

Nuclear Iran or Nuclear armed Iran has been a much source of debate off late. There have been different reactions from different lobbies to the Tehran’s much-feared nuclear program. Deliberations and talks on the topic have been going on between P5+1 countries and Iran to reach an amicable solution. While P5+1 countries led by US claim that Tehran already possesses nuclear weapons, Tehran has constantly declined the accusations and said that its nuclear program is only for peaceful purposes and to ensure the power security in the nation. The secretive nature of Tehran’s nuclear program makes ...

Iran’s Nuclear Threat

REGIONAL STABILITY, GLOBAL SECURITY
Regional Stability, Global Security: Finding a Workable Answer to Iran’s Nuclear Threat
In the modern world, “rogue” states have become adept at wielding the threat of nuclear weaponry in the global political arena and wringing concessions from developed nations that have, at best, an imprecise knowledge of whether, and at what stage of development, nations like North Korea and Iran possess nuclear capability. It is a matter of intense interest among America’s intelligence and diplomatic communities to determine whether the persistently belligerent regime in Iran seeks political leverage against Israel and the United ...