Chemical energy Electrical energy
Characteristic
Chemical reaction
-use oxidation
-supply fuels and oxygen from outside
-emission products to outside
Fossil fuel is limited
Fossil fuel is the main reason of global warming
The rate of energy dependence on imports is 96.8%
Increase energy import price by increasing international oil
In describing the answer to the question below, try to share your opinions on the basis of evidences such as articles and books. Also provide information of the evidence (author, title, journal name, etc.).
1. Explain what happens in terms of mechanical/chemical properties when making products using metal-based 3D additive manufacturing technology. (10 points)mechanical properties
전통적
● Definition of plasma
Plasma is one of the four fundamental states of matter, along with solid, liquid, and gas. It is an ionized gas consisting of a collection of charged particles, including ions, electrons, and neutral atoms or molecules. Plasma can be found naturally in the universe in the form of stars, lightning, and auroras, but it can also be artificially created and controlled for
Introduction (What is plasma?)
1. Definition of plasma
Plasma is one of the four fundamental states of matter, along with solid, liquid, and gas. It is an ionized gas consisting of a collection of charged particles, including ions, electrons, and neutral atoms or molecules. Plasma can be found naturally in the universe in the form of stars, lightning, and auroras, but it can also be artif
Ⅰ. Introduction
1. Study background and objectives
Recently, due to environmental pollution and climate change, attention to environment is more growing than ever. Especially, buildings form 40% of energy and resource consumption, 30-40% of carbon dioxide emission, 20-25% of waste discharge, 17% of water consumption, and 25% of wood consumption, so buildings are mainly responsible for