SUMMARY There are numerous methodologies available in solving the problem in synchronizing timing oscillators of the communication networks: pleziosynchronization, forced synchronization or mutual synchronization. In the presented work the mutual synchronization system composed of four oscillators is analyzed. The mathematical model of the synchronization system is matrix differential equation with delayed argument. Applying the method of “steps” and Laplace transform we find the solution of the matrix differential equation and the step responses matrix of the synchronization system. Exact analytical and graphical expressions of transition functions and exact expressions of the phase differences between signals of oscillators of this synchronization system are obtained.

Thesis (Ph. D.)--University of North Texas, May, 2008. / Title from title page display. Includes bibliographical references.

The mutual synchronization system composed of four oscillators is analysed in the work. The matrix differential equation with delayed arguments is the mathematical model of the synchronization system. The solution of the matrix differential equation is obtained applying the method of “steps” and Laplace transform. The solution involves the powers of the matrix describing the structure of internal links of the synchronization system. The powers of this matrix are calculated taking into account the eigenvalues and eigenvectors of the matrix. Applying solution of the matrix differential equation the step responses matrix of the system is obtained and transient responses are analysed. The dependence of the phase differences of the oscillators on initial conditions is analysed.

There are numerous synchronization methodologies available in solving the problem of network synchronization. This paper presents an analytical analysis of the mathematical model of forced synchronization system composed of four oscillators. Exact analytical and graphical expressions of transition functions and exact expressions of the phase differences between signals of oscillators of this synchronization system are obtained.

This thesis report presents a new design of a synchronization unit for high power impulse magnetron sputtering (HiPIMS) applications used for depositing thin films. The proposed system is composed of two major hardware parts: a microcontroller unit (MCU) and a field-programmable gate array (FPGA). The control range of the new system is increased by at least ten times compared to existing synchronization unit designed by Ionautics AB.In order to verify the system and benchmark its innovations, several batches of the thin film have been deposited using the new technology. It is shown that HiPIMS with synchronized pulsed substrate bias can effectively improve coating performance. Pulsed substrate bias with user-defined pulse width and delay time is possible to use in the new control mode proposed by this master thesis work; Bias mode. As a result, this master thesis work enables users to flexibly control the HiPIMS processes.

This project proposal describes the involvement of a wireless pager. It describes the possibility of realization, block diagrams of the receiver and transmitter controlprogram for their individual and flowcharts. In the theoretical design are taken intoaccount the ease of use, durability and endurance of the battery function. Was chosenfor the realization of a suitable wireless module, with a sufficient range. The goal is todesign a suitable wireless pager with sufficient range, durability and reasonable price that could be used within a department or a house to call for help.

Imagine a world where someone’s personal information is constantly compromised, where federal government entities AKA Big Brother always knows what anyone is Googling, who an individual is texting, and their emoticons on Twitter. Government entities have been doing this for years; they never cared if they were breaking the law or their moral compass of human dignity. Every day the Federal government blatantly siphons data with programs from the original ECHELON to the new series like PRISM and Xkeyscore so they can keep their tabs on issues that are none of their business; namely, the personal lives of millions. Our allies are taking note; some are learning our bad habits, from Government Communications Headquarters’ (GCHQ) mass shadowing sharing plan to America’s Russian inspiration, SORM. Some countries are following the United States’ poster child pose of a Brave New World like order of global events. Others like Germany are showing their resolve in their disdain for the rise of tyranny. Soon, these new found surveillance troubles will test the resolve of the American Constitution and its nation’s strong love and tradition of liberty. Courts are currently at work to resolve how current concepts of liberty and privacy apply to the current conditions facing the privacy of society. It remains to be determined how liberty will be affected as well; liberty for the United States of America, for the European Union, the Russian Federation and for the people of the World in regards to the extent of privacy in today’s blurred privacy expectations.