Metal Literature Reviews Samples For Students

Lehn defines the concept of Supramolecular chemistry as 'chemistry beyond the molecule'; chemistry of the intermolecular bond that includes the functions and structures of the entities resulting from the bonding between multiple chemical species. According to Vogtle and Alfter (1991), supramolecular chemistry, contrary to molecular chemistry, is based on intermolecular bonding or interactions, while the later is predominantly based on the covalent bonding of atoms. In other words, supramolecular chemistry deals with the bonding between two or more building blocks that are bound together by means of intermolecular bonds.
The aforesaid concept bears on the organized entities of ...

Introduction

Dental implants are increasingly becoming popular because a large section of clinicians believe that natural tooth restoration techniques are inferior to dental implants as implants have a longer life than natural tooth and are less susceptible to biological changes. There are various types of dental implants that support crown, bridges, and dentures, and act as orthodontic anchors and facial prosthesis. The basis of the modern dental implant is a biological process in which titanium forms a bond with bone. Dental fixture is first implanted and then a prosthetic is added.
Over the years, various implant impression techniques, such as ...

Literature Review on Carbon Fibers

This paper sums up a literature review on a unique and astounding development in the field of Science, known as carbon fibers. Although, they were discovered during late 1800s for the first time, their true potential was not realized until mid 20th century, and even today, researchers are experimenting over new areas of application for carbon fibers. The paper will further discuss; different areas of application, the composition, structure and characteristics of the carbon fibers used, along with a list of merits and demerits of using carbon fiber in place of a traditional alternative in modern engineering.

Carbon fibers have molded into many ...

Introduction

Many countries across the world are faced with the problem of water and soil contamination. The contaminations are caused by industrial effluents, military actions and agricultural activities among others. Human carelessness and ignorance also contribute significantly to water contamination. As a result, new biological, chemical and natural activities have been invented in order to control water contamination. One of the most successful measures used in control of water contamination is phytoremediation. It involves the use of plants to absorb pollutants from contaminated water found on the surface of the land and in the soil. This paper discusses the biological ...

The ubiquitous climate change and the attendant consequences in the forms of flash floods, earthquakes, tsunamis etc has further intensified efforts at seeking alternative sources of energy to the currently used fossil fuels that contribute so much to the deterioration of the environment and the menace of climate change. The alternative forms of energy, termed green energy are renewable sources of energy e.g. solar energy. Theses green sources of energy do not contribute to the deterioration of the environment. The industrial production of hydrogen gas H2 is dependent on heavy use of fossil fuel-generated electricity to power the process ...

Literature Review: Body Armor Overview

Literature Review: Body Armor Overview
- Body Armor: Introduction
- History

In modern times, security forces and military personnel use body armor to mitigate the likelihood of serious injury while engaged in their professional activities. However, the use of body armor is by no means a new phenomenon. From the earliest times that man developed weapons, he has also produced means of providing protection against weapons wielded by others, including the use of body armor. Early man used comparatively primitive methods, but as civilizations developed and techniques advanced, body armor evolved. Whilst the soldiers of ancient Greece ...

Literature Review: Body Armor Overview

Literature Review: Body Armor Overview

- Body Armor: Introduction

- History

In modern times, security forces and military personnel use body armor to mitigate the likelihood of serious injury while engaged in their professional activities. However, the use of body armor is by no means a new phenomenon. From the earliest times that man developed weapons, he has also produced means of providing protection against weapons wielded by others, including the use of body armor.
Early man used comparatively primitive methods, but as civilizations developed and techniques advanced, body armor evolved. Whilst the soldiers of ancient Greece used shields ...

In order to allow for free movement of electrons, graphitic carbon materials have a tendency of sharing crystalline domain (Fitzer & Köchling, 1992) for increased conductivity (Walker, P. L., 1973). In the study carried out by (Novoselov, et al.; Bazaroz & Nikolaev, 1989; Liu et al., 2004; Harfanist et al., 2004; Coleman et al., 2006), the use of graphitic carbon in several applications including the next generation electronics, composite materials (Coleman et al., 2006; Chen, I.-H., Chen, C.-Y., & Wang, 2010), activated carbon fibers, fuel cells (Wang, Zhao, & Niu, 2007; Marta, et al, 2008), sensors and batteries (Besenhard, 1999; Hess, Lebraud & Levasseur, ...

Introduction

One of the byproducts of urban growth and development is the waste production. As per the report of the World Bank (2013), OECD countries produce almost half of the world's waste, while South Asia and Africa are listed as the regions producing the least amount of waste. The Basel Convention defines 'wastes' as substances or objects that need to be disposed of in accordance with the provisions of national law. European Waste Catalogue shows 850 types of wastes out of which 420 types of wastes have been classified as hazardous waste. Hazardous wastes are those wastes considered to be ...

Introduction

During the creation of the world, the world contains some amount of resources to produce energy. The need for light during dark period forced many scientists to invent the flow of energy called electricity. The need for electricity forced humans to use non renewable energy resources like coal, petroleum etc. The Human fails to understand the non renewable energy resources are depleting in nature and it will diminish after some years. Now all of them are searching for renewable energy resources, among them solar energy is the good renewable energy resources that can be obtained from sun. The suns ...

Healthcare

In the current paper, we will discuss the complications in removable implant prosthesis, fabrication, delivery, and function. For the purpose of understanding these topics better, we need to understand the basic concepts of dental implants first. A dental implant can be described as an artificial replacement of a tooth root which is placed in the jaw for the purpose of holding a replaced tooth or a bridge. Dental implants can be used as an option for the patients who had lost a tooth as a result of a periodontal disease, injury or any other reason.
Two different types of ...

There is an increasing number of electric cars in the world, with the US expecting to have 1 million electric cars by the end of 2015. Arguably, it is easy to increase the number of electric cars but difficult to increase electricity generating capacity at the same rate. Generating capacity to cater for the number of electric cars. The basic problem with electric vehicles require an overnight charging to ensure the car is fully charged when owners need it to commute in the morning. Any given grid can provide a certain amount of excess electric supply which it can devote ...

Introduction:

Moreover, the process of Green Supply may as well be considered as the practice of monitoring and enhancing environmental performance alongside the supply chain. Incorporating environmental awareness into the supply chain management, entails product design, viable raw-material sourcing and selection, efficient manufacturing processes, distribution of the final produce to the consumer as well as post-life product management, particularly after product use (Emmett & Sood, 2010).

Responsible production and consumption:

Greening the Supply Chain and Globalization:
In the modern market domains, globalization improves the opportunities for buyers in products’ acquisition. As buyers elevate their focus on environmental improvements, this in turn enhances the supplier ...

International Marketing

Abstract
Music plays an unchallenging positive role on the mental patents. Not only the advance researches have proved its importance, but also the evidence of music treatment were found in the ancient times histories. Music is the part of every tradition for many years and nobody can deny its importance.
Today, the role of music repetition has proved a way of treatment for the mental patients for the therapy and disorder purposes. The researches of the neurophysiological have described the demonstrational impacts of music not only the patients but also useful for the basic emotional system of the ...

EVALUATION OF “Ru(0) AND Ru(II) NITROSYL PINCER COMPLEXES: STRUCTURE, REACTIVITY, AND CATALYTIC ACTIVITY,” BY FOGLER ET. AL.
1) Characterization of the compound
Complex 8 which is described as a Ruthenium complex with a bent nitrosyl ligand was characterized using three analytical techniques: Hydrogen NMR (1{H} NMR), X-ray Diffraction (DFT), and Infrared Spectroscopy (IR). The 1H NMR was used to verify the complex which gave a singlet signal at 56.6ppm, and its phosphine methylene ligand gave a signal at 3.27 ppm, these signals not only verify the presence of the types of hydrogen in the complex but also its ...

Abstract

The Piper Alpha disaster is well known for it resulted in the highest number of casualties who lost their lives in the history of off shore oil and gas rigging. This paper reviews literature on the Piper Alpha disaster presenting an overview of the circumstances that led to the occurrence of the tragedy. Further, it examines the role that different parties played with regard to their contributions to the situation. Subsequently, an analysis of the course of action taken with regard to the management of the disaster as it happened and in its aftermath is as well evaluated. The ...

Introduction

According to the current website of the city of Henderson Nevada, the origin of the Henderson community roots back to the World War II where by this community was the primary supplier of magnesium, a miracle metal that was used in the manufacture of ammunitions and airplane parts to the US War Department. The city was later to be officially incorporated in 1953 and since then it has developed into a city with premier services, amenities and opportunities. Later in 1965, the city of Henderson was chartered as a city council (Lefkon & Safro, 2011). Presently, this city is nationally recognized for its ...

Introduction

Waste management refers to the process of collecting, transporting and disposing trash, sewage and other waste materials. There are different sources of waste including residential, industrial, commercial, institutional, construction and demolition, municipal, agriculture and manufacturing and all these waste products whether solid, gaseous, liquid or radioactive come under the realm of waste management. Due to the rapid growth and fast development in Australia, the country has produced waste on humongous amount. As per the data provided by Australian Bureau of Statistics, the growth of average annual rate of waste production in Australia is about 5.4% between 1996-97 and 2006-07. ...

- Fitzroy River Turtle (R Leukops)
- The Biology
Fitzroy River Turtle, Rheodytes leukops is also called the white eyed river diver referring to its Latin name. Locally, it is sometimes called the “bum breathing turtle referring to its ability to utilize cloacal ventilating. This method of breathing improves its breath-holding capacity and enabling it to colonize riffle zones and take advantage of the associated greater densities of food resources during the wet season and early dry season. . “R. leukops was first described as a new genus and species in 1980 (Legler and Cann,1980) and most publications ...

Control Valves

A valve is a control device that is utilized in adjusting the flow rate of a fluid in a pipe (Doddannavar, Barnard, and Ganesh, 2005). This implies that the flow rate will change as the valve opens and closes either partially or fully, thus providing some obstruction to some extent (Rennels and Hudson, 2012). The valve comprises a flow passage in which the flow area can be varied. Operation of valves in most scenarios is manual. In cases where the valves are operated automatically, electromechanical actuators are used. The electromechanical actuators can include electric motors or pneumatic actuators that are motorized by air ...

Literature Review

Physicians always encounter innumerable number of patients with chest pains every day. The cause of these chest pains cannot always be pinpointed to a single health factor. However, veritably a good percentage of these chest pain cases are traced to a wide range of heart diseases. Acute Coronary Syndrome is one such heart disease that has been found to be a possible causation of the chest pains that are incessantly encountered by physicians. Commonly abbreviated as ACS, Acute Coronary Syndrome results in the blockage of some parts or the heart’s entire coronary arteries.

Definition

Acute Coronary Syndrome (ACS) is a cardiac condition with an ...