Essays on Ballast

Identifying Environmental Hazards

Identifying Environmental Hazards

The study is designed to determine whether there is increases or decreases in the population of invasive species as well as ascertain the implications associated with the alteration of the population of the invasive species to the ecosystem as a whole.

Introduction

Today, due to factors such as foreign travel, globalization, the increase in human population, and uncontrolled development patterns, the frequency and magnitude of introductions of non-native invasive species (NNIS) into native lands has grown at an alarming rate (Mooney & Cleland, 2001). Invasive species pose serious risks to the native ecosystems, threatening to change not only ...

Flat roofs are roofing systems with the slop less than 10 degrees. This construction allows to use them as living space. Flat roofs exist for centuries, and people developed different types of covering for these systems. There are several most popular decisions with own advantages and features. TPO. These are single-ply roof membranes made from thermoplastic olefin or ethylene propylene rubber. TPO membranes have “resistance to ozone, are algae-resistant, environmentally friendly and safe to install” (roofhelp.com, n. d.). The typical thickness of TPO sheets varies from 40 to 100 mils. Constructors use hot air to seal seams between sheets. ...

Intermodal Containers

Introduction The intermodal container is one of the most common sights in ports, harbors and docks. It is so common that its importance and significance to modern logistics is often overlooked. But despite the seemingly simple design of intermodal containers, its universal usefulness in transporting goods could not be undermined that it can be considered as one of the most important development in the field of transportation and logistics. Despite its importance in commerce and logistics, the intermodal container is also at risk of being utilized by the lawless elements of society. Without proper security, containers can be used ...