Digital Commons Network^™

Partial Connectivity In Wireless Sensor Networks, Robert Andre Murphy

Dissertations

Given a bounded region of the 2-dimensional plane, a discrete set of nodes is distributed throughout according to a Poisson point process. Given some fixed, finite, real number, two nodes are said to connect and form an edge if their mutual distance is less than this number. Let G be the graph of all such edges over the set of generated nodes and let C be any set of mutually connected nodes. It is shown that there is a critical mutual distance such that at least half of all generated nodes are mutually connected to form a connected cluster. Now, …

Underwater Communication Via Particle Velocity Channels : Principles, Channel Models, And System Design, Huaihai Guo

Dissertations

A vector sensor is capable of measuring important non-scalar components of the acoustic field such as the particle velocity, which cannot be obtained by a single scalar pressure sensor. In the past few decades, extensive research has been conducted on the theory and design of vector sensors. On the other hand, underwater acoustic communication systems have been relying on scalar sensors only, which measure the pressure of the acoustic field. By taking advantage of the vector components of the acoustic field, such as the particle velocity, the vector sensor can be used for detecting the transmitted data. In this dissertation, …

How Does Internet Facilitated Communication Impact Teacher And Parent Partnerships?, Mara Paich Grujanac

Dissertations

In 2001, Public Law 107-110, known as the No Child Left Behind Act of 2001, mandated that public schools become accountable for the achievement of all public school students. Included in Public Law 107-110 is a section that mandates that schools involve parents in the functioning of the institution and that parents be involved in their child's education. Schools have been utilizing Internet Facilitated Communication (IFC) to facilitate parent involvement within the school community.

This dissertation concentrates on parent-teacher communication specifically as it pertains to student achievement. This study examined the ways parents and teachers utilize electronic communication to invite …