Effect of nonsymmetrical flow resistance upon orifice impedance resistance

A nonreactive orifice in an infinite baffle is analyzed. The pressure difference delta across the orifice varies sinusoidally with amplitude 1.0 and average value -P. The orifice resistance, delta p is discontinuous at zero velocity and exhibits the constant values R sub + and R sub - for u 0 and u 0, respectively. The resultant velocity has power in all harmonics of the excitation frequency. A quasi-linear resistance is defined and found to be relatively insensitive to the presence or absence of a resonant backing cavity; however, it does vary from 1.33 R sub + to 0.67 R sub + for a resistance ratio R sub +/R sub - between 0.5 and 2.0

Recombination luminescence in N-type Czochralski silicon

Recombination luminescence in Czochralski silico

Collegiate Athletic Opportunities For Women Under Title IX Raises The Proportionality Concern For Mens Sports

Title IX of the Education Reformation Act was passed in 1972 for the purpose of providing equality between males and females in intercollegiate sports. Since its inception the disparity between mens and womens varsity athletics programs has persisted throughout American colleges and universities. Discrimination and equal protection concerns define the continuing debate of gender equality under the Act. Campuses across the Nation have seen athletic departments add womens varsity sport programs and cut mens programs in order to remain compliant under the Act. This paper explores the equal protection concerns of proportionality amongst enrollment rates and participation rates in intercollegiate athletics. The state of Title IX today remains clouded with questions by college administrators who, after over three decades of enforcement, are employing proportionality concepts as a measure to obtain gender equality in sports. The proportionality practice of cutting mens programs instead of adding womens programs may undermine the purpose of Title IX. This paper is an analysis of the Court decisions and lawsuits that characterize the controversy of Title IX and its legal application to claims of gender bias associated with female athletic programs. The study of this concern is imperative and will shape how college athletic programs are administered in the future

Independent Orbiter Assessment (IOA): FMEA/CIL assessment

The results of the Independent Orbiter Assessment (IOA) of the Failure Modes and Effects Analysis (FMEA) and Critical Items List (CIL) are presented. Direction was given by the Orbiter and GFE Projects Office to perform the hardware analysis and assessment using the instructions and ground rules defined in NSTS 22206. The IOA analysis features a top-down approach to determine hardware failure modes, criticality, and potential critical items. To preserve independence, the anlaysis was accomplished without reliance upon the results contained within the NASA and prime contractor FMEA/CIL documentation. The assessment process compares the independently derived failure modes and criticality assignments to the proposed NASA Post 51-L FMEA/CIL documentation. When possible, assessment issues are discussed and resolved with the NASA subsystem managers. The assessment results for each subsystem are summarized. The most important Orbiter assessment finding was the previously unknown stuck autopilot push-button criticality 1/1 failure mode, having a worst case effect of loss of crew/vehicle when a microwave landing system is not active

Radiation effects on lasers Technical report, Jul. 1, 1965 - May 31, 1966

Effects of space radiation on laser

Evaluation of the effects of space environment exposure on index of refraction and extinction coefficients of Apollo window materials

Temperature and radiation effects on index of refraction and extinction coefficients of Apollo window material

Radiation effects on silicon solar cells Third monthly progress report, Mar. 1-31, 1962

Radiation effects on silicon solar cell