Lunar fiberglass: Properties and process design

A Clemson University ceramic engineering design for a lunar fiberglass plant is presented. The properties of glass fibers and metal-matrix composites are examined. Lunar geology is also discussed. A raw material and site are selected based on this information. A detailed plant design is presented, and summer experiments to be carried out at Johnson Space Center are reviewed

Direction of the Play: The Importance of Being Earnest

This project entailed the selection, background research and documentation, casting, direction, and post-production analysis of Cranbrook Community Theatre\u27s production of Oscar Wildes\u27s The Importance of Being Earnest. Documentation includes research and analysis of the play, and an evaluation of the play as a production vehicle for the department of Theatre Arts at Central Washington University

Differential Cross Section for Electron Positron Pair Production From Neutron Proton Scattering

The differential cross section for a neutron-proton collision forming an electron-positron pair is calculated. The interaction between the neutron and proton is assumed to be pseudo-scalar and that between the proton and the pair electromagnetic. The interaction between the pair and the neutron is assumed negligible. The methods used to obtain the matrix elements of the process follows that of Möller. The calculation is therefore based on retarded interaction and is relativistic. In obtaining the square of the matrix elements the initial and final polarization states were not considered. The usual projection operator methods were then applied to the intermediate states which led to traces and trace products. The traces were calculate on an IBM 7090 computer with the read-out being of alphabetic form. The output consisted of dot products of four vectors, with the four factors specifying the energy and momentum of the various particle states. A second computer program was written to determine the momentum and energy among the particle states for a special symmetrical scattering case. The data obtained from this program was used as input for a third computer program which obtained a plot of differential cross section versus incident proton energy, the proton energy running from 960 Mev to 1065 Mev. The results depicted by the graphs are discussed and additional work recommended

Profitability of Northeast Organic Dairy Farms

Livestock Production/Industries,

The Medici and a Florentine Plutocracy in the Quattrocento

This study examines how the economic elite of Florence, Italy during the fifteenth century exerted political control over the Republic of Florence. Several powerful families influenced the domestic and foreign policies of Florence. However, one Florentine family among the ruling class was more effective at using their wealth to obtain political power. As this work demonstrates, the Medici family was able to control the republican Florentine government as a de facto plutocracy. Chapter two focuses on how the Medici successfully used civic humanism and artistic endeavors to justify and project their power throughout the Italian world. Focusing on contemporary demographic, literary, and legal sources, including the Tratte of Office Holders, 1282–1532 and the Catasto of 1427 in chapter three, this thesis illustrates how the Medici, in particular Cosimo Pater Patriae (Father of the Fatherland) and his grandson Lorenzo, manipulated the Republic of Florence to maintain their control over the Florentine government. Chapter three details the manipulative practices of Cosimo de’ Medici and Lorenzo de’ Medici that highlight the Florentine government’s lack of republican values. Finally, chapter four utilizes the Catasto of 1427 to illustrate who the plutocratic class was and shows how the Medici used their wealth more effectively. The example given in chapter four is how the Medici used their wealth to influence religious appointments in the Catholic Church

Marshall University Music Department Presents The Bench by the Sea, featuring, The University Chorus and A Cappela Choir, Mr. Rob Wray, conductor, and, The Marshall Symphonic Band, Dr. Adam Dalton, conductor

https://mds.marshall.edu/music_perf/1691/thumbnail.jp

Saliz discolor: Prospects for phytoremediation of lead and polycyclic aromatic hydrocarbons

Members of the genus Salix, more commonly known as willows, are of great interest in the field of phytoremediation. Their ability to rapidly accumulate biomass, grow in disturbed conditions, aggressively seek water and development of extensive root systems are well documented – all highly desirable traits for phytoremediation, yet the remediation capabilities of most species remains unknown. The present study seeks to determine the ability of Salix discolor to remediate lead and polycyclic aromatic hydrocarbons (PAHs) – two of the most common pollutants in urban and industrial areas and which are often found in states of co-contamination. The ability of S. discolor to remove these contaminants from aqueous media was tested using a hydroponic experiment. The treatments consisted of an uncontaminated control, lead or PAH contamination and lead and PAH co-contamination. The concentration of the media was monitored weekly, and at the conclusion of the experiment the accumulation of the lead and PAHs in the roots, shoots and leaves of the plants will be analyzed using atomic absorption spectrometry and gas chromatography – mass spectrometry, respectively. Additionally, biomass accumulation will be recorded to determine the effects of contamination on the growth of the plants. Results are pending until the experiment has concluded. *Indicates faculty mentor

Systems and Methods for Ejection of Ions from an Ion Trap

The invention generally relates to systems and methods for ejection of ions from an ion trap. In certain embodiments, systems and methods of the invention sum two different frequency signals into a single summed signal that is applied to an ion trap. In other embodiments, an amplitude of a single frequency signal is modulated as the single frequency signal is being applied to the ion trap. In other embodiments, a first alternating current (AC) signal is applied to an ion trap that varies as a function of time, while a constant radio frequency (RF) signal is applied to the ion trap