The Definition of UTC

The De nition of UTC

The current de nition of Coordinated Universal Time (UTC) is related to the unpredictable, variable rotation rate of the Earth. This is accomplished by irregular insertions of leap seconds, creating unpredictable discontinuities in UTC. With the increasing importance of a continuous, uniform time scale for users, it is appropriate to re-examine the current de nition of this time scale. There ar...

Connected Vehicles- Infrastructure UTC

The goal of the Infrastructure Safety Assessment in a Connected Vehicle Environment project was to develop a method to identify infrastructure safety “hot spots” using connected vehicle data. The premise was to show that using connected vehicle basic safety messages to detect hot spots could allow for a quicker detection than traditional methods using police-reported crashes. This is because th...

Utc Dissemination to the Real-time User

This paper cmacludes the tutorial session on the delivery of UTC to the real-time user. The first paper of the session describes the technical problems and other issues that impede the abilitg of users to achieve synchronization and syntonization. The next four papers doscribe the activities of several national and in terna t io~l organizofions t h a provide critical time and frequenq services....

REQUIREMENTS FOR UTC AND CIVIl

the effect of taftan pozzolan on the compressive strength of concrete in the environmental conditions of oman sea (chabahar port)

cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...