Intensity beam profiles of a 633 nm laser off a super-polished glass surface were captured using surface polarization reflection. Profile capture can be difficult due to the relative intensities of molecular reflection versus macro reflection. Surface polarization reflection uses parallel polarized light incident at Brewster’s angle to extinguish macro reflection....
The detection of limit cycles may be accomplished in several
ways. This thesis presents a numerical method for detection when
the system is described by the Van der Pol equation.
Two numerical integration methods are used to increase the
accuracy of the detection. The concept of a transversal is utilized...
Intensity beam profiles of a 633 nm laser off a super-polished glass surface were captured using surface polarization reflection. Profile capture can be difficult due to the relative intensities of molecular reflection versus macro reflection. Surface polarization reflection uses parallel polarized light incident at Brewster’s angle to extinguish macro reflection....
Mechanical property degradation due to the disorder-order phase transformation is of potential concern for alloys based on the Ni-Cr binary system, particularly in nuclear power applications, where component lifetimes can exceed 80 years. In the present research, a disorder-order phase transformation has been studied in the Ni-33 at.% Cr model...
The U.S. Department of Health and Human Services has made the promotion of regular physical activity a national health objective, and experts believe that physical education can play a significant role in the promotion of physical activity. Feasible measurement tools to assess physical activity behavior, by physical educators, are lacking....
All too often, students in physical education classes are only accountable
for tasks such as attendance, dressing out, and maintaining positive behavior. To
shift the focus to content accountability, teachers need to utilize methods and
techniques that hold students accountable for subject matter performance.
Another area of concern for physical...
Physical Activity (PA) has been shown to significantly improve the overall health of adolescents. The health dimensions that are positively influenced by a consistent level of PA are multiple and range from body composition, chronic diseases management (diabetes, cardiovascular disease, etc.), chronic pain, and mental health (depression, anxiety, etc.). The...
According to Block (1999), the greatest problem with inclusion in physical education is the lack of personnel support. Most help comes in the form of teacher assistants such as peer-tutors and paraprofessional who receive very little, if any, direction from the general physical education teacher. However, what remains unknown are...
A current trend in educational reform requires teachers to be proficient in employing technology in their classrooms. As a result of this trend, teachers need to be prepared to integrate technology into their teaching, and teacher preparation programs have a responsibility to prepare their students accordingly. The handheld computer (PDA)...