1. Listening Comprehension
1~3) Listen to the following and answer the question.
Pre-history
Prior to the release of bitcoin there were a number of digital cash technologies starting with the issuer based e-cash protocols of David Chaum and Stefan Brands. Adam Back developed hashcash, a proof- of-work scheme for spam control. The first proposals for distributed digital scarcity based cryp
abstract (초록)
With recent rapid advancement of BIM technologies, recognized research work for
Utilizing BIM has been conducted for increasing construction efficiency. However,
most of the previous studies were limited to reflect that why applying BIM is
difficult. This study compares the efficiency of BIM according to the type of public
buildings. Because public buildings are built a lot
1. Definition and Types of the Veil
1. 1 Definition of the Veil
Veil is a decoration for showcase or protection. And it hides the face, head and whole body. Most of the scholars, veil has seen to be derived from Mesopotamia and Persia, and is one that existed from the most ancient in the women's clothes. According to Korean, it is considered to the production of cotton, but that made of various
Ⅰ. Definition of some terms which will be used and concepts of marketing
1. What is the marketing?
-Many people regard the marketing as sales or advertisement. This is not wrong, but it is a little bit insufficient to understand the marketing wholly. In the marketing, ‘market’ means customers or consumers who buy some products in the market. It is the first step for comprehending the m
The optical microscope, often referred to as the "light microscope", is a type of microscope which uses visible light and a system of lenses to magnify images of small samples. Optical microscopes are the oldest design of microscope and were possibly invented in their present compound form in the 17th century. Basic optical microscopes can be very simple, although there are many complex designs w