The suggestion has been made that the Montgomery streamfunction is now calculable for isentropic analysis purposes simply by applying the equation = gZ + cpT . Historically, this practice has been frowned upon, as measurements aloft did not have the accuracy requisite to allow such practice. Instead, an integral approach to calculating has been preferred to get workable values. Yet, advancement...

Applications of artificial satellites in positioning and navigation can be traced back to as early as the 1960’s, just shortly after the launch of the first artificial satellite in 1957, when the era of satellite geodesy started. Over the past four decades, particularly since the inception of the Global Positioning System (GPS), satellite-based positioning techniques have been playing an increa...

This paper presents a vital signs monitoring system using wireless networks in Thailand. The system consists of vital signs measurements including electrocardiogram and heart rate. In addition to the health information of patients that is monitored, the location of patients specified using the global positioning system (GPS) is employed in the system. A prototype of the system has been develope...

Alison Brown is the President and Chief Executive Officer of NAVSYS Corporation, which she founded in 1986. NAVSYS Corporation specializes in developing next generation Global Positioning System (GPS) technology. Dr. Brown has a PhD in Mechanics, Aerospace, and Nuclear Engineering from UCLA, an MS in Aeronautics and Astronautics from MIT, and an MA and BA in Engineering from Cambridge Universit...

The National Institute of Standards and Technology (NIST) is deploying disciplined oscillators that are referenced to the UTC(NIST) time scale through common-view observations of Global Positioning System (GPS) satellites. We present measurement results from four NIST disciplined oscillators (NISTDOs), three located in the United States, and one located in Concepción, Chile. These devices repli...

The aims of this study were, first, to analyse the differences between referees and assistant referees in 20and 30-metre straight line sprinting test performance and in the maximum speeds registered in football matches; and, second, to analyse the differences between the maximum speeds registered in matches and in the straight line sprinting test. Twenty referees from the Spanish Third Football...

This paper focuses on the break-taking behaviour pattern of long-distance freight vehicles, providing a new perspective on the study of behaviour patterns and simultaneously providing a reference for transport management departments and related enterprises. Based on Global Positioning System (GPS) trajectory data, we select stopping points as break-taking sites of long-distance freight vehicles...

[1] The 26 December 2004 Sumatra earthquake (Mw 9.2–9.3) generated the most deadly tsunami in history. Yet within the first hour, the true danger of a major oceanwide tsunami was not indicated by seismic magnitude estimates, which were far too low (Mw 8.0–8.5). This problem relates to the inherent saturation of early seismicwave methods. Here we show that the earthquake’s true size and tsunami ...

Detection and removal of antipersonnel landmines is an important world-wide concern. A huge number of landmines have been deployed during the last twenty years and demining will take several more decades, assuming the topic that no more mines are going to be deployed in the future. An adequate mine clearance rate requires the use of new technologies such as improved sensors, efficient manipulat...

I have been dating this guy for ten years. We both have physical disabilities and therefore have very limited movement. However, we have complete sensation. We really want to have sex but are having difficulty with positioning. Since I have a little more movement than him, I am going to be the one who does most of it. We have had two very unsuccessful attempts and are getting very discouraged. ...