Dual-mode operation of a neutron source, a concept

Pulsed neutron source operates in conjunction with a photomultiplier tube coupled to a gamma ray scintillation crystal. This allows measurements of gamma radiation from both inelastic scattering and thermal neutron capture in a single experiment

Neutron die-away experiment for lunar and planetary surface analysis Final report, 26 Jul. 1966 - 26 Mar. 1967

Neutron and gamma ray die-away experiment for lunar and planetary surface analysi

Arvin High School - Internship Report

This internship report consists of two parts. The first section addresses the Quality Criteria in Agricultural Education for the program of agricultural instruction at Arvin High School. The second section explains the steps in remodeling the agriculture classroom and agriculture mechanics shop at Arvin High School. The remodeling of the facility was accomplished to address the occupational needs for students entering the work force immediately after high school. It was also designed to prepare students for opportunities in higher education

Community and The Meal: A Rhetorical Investigation

From ancient Greece to post modernity, the meal as a focal point of community life and a cultural practice, and the meaning of eating, have been the focus for numerous scholarly studies and their rhetorical significance. This dissertation will define how interpersonal communication and the enactment of the meal are rhetorical partners within a community. Cultural differences, communication style, and values affect one\u27s perception of the culture\u27s narrative structure, inclusion and exclusion, private and public space, and civility and incivility practices in relationship to the community. These differences impact the meal, food choices, tastes, and communication style and ultimately shape their rhetorical power to texture community and its practices. This study attempts to answer the question: What are the rhetorical implications of interpersonal engagement within community around the common center of the meal? The purpose of this study is to discover the rhetorical significance of food-related gatherings, particularly the sharing and exchange of foods and beverages as a common center within the community as they promote a rhetorical exchange through interpersonal communication. The application of metaphors is broken down into specific investigations in three primary time frames to determine how food and meal-related artifacts engaged and/or disengaged communities in relationship to the meal in the spheres of rhetorical action of these metaphors. Each historical period will have a geographical focus. For example, ancient civilizations will broadly focus on the influences of ancient Greece and its ultimate influence on the communication style of the Romans; the European nations will be included in the Renaissance, and Early America will be included in the Enlightenment period. Modernity and post-modernity will be blended together to explore what influence modern eating styles have had on the family through mediated rhetorical means (e.g., mass communication). The interpretation of the metaphors will be accomplished through interpretive research applied through a hermeneutic screen. People in situations are placed in a social life, a culture of their own, and a culture situated in time. The application of hermeneutics will assist the interpretation and understanding of the rhetorical significance of persons in communities while engaging interpersonal communication around the meal. This will include cultural norms and other elements of the context of the meal engagement. Four areas will be explored: create and recreate narratives within which communities are embedded and examine their particular cultural identity; generate inclusion with and exclusion from communities; manifest and differentiate public and private discourse and experience as part of community life; and display and recreate practices of civility and incivility within the community. In each time period, these metaphoric spheres of rhetorical action work somewhat differently because of the different meanings generating the common sense or sensus communis that is operative in the time and place

Transverse microcracking in Celion 6000/PMR-15 graphite-polyimide

The effects of room temperature tensile loading and five thermal loadings, in the range -320 F (-196C) to 625F (330CC), upon the development of transverse microcracks (TVM) in Celion 6000/PMR-15 graphite-polyimide laminates were investigated. Microcracks were observed using a replicating technique, microscopy and X-ray. The mechanical or thermal load at which microcracking initiates and the ply residual stresses were predicted using laminate analysis with stress- and temperature-dependent material properties

Applications of acoustics in the measurement of coal slab thickness

The determination of the possibility of employing acoustic waves at ultrasonic frequencies for measurements of thicknesses of slabs of coal backed by shale is investigated. Fundamental information concerning the acoustical properties of coal, and the relationship between these properties and the structural and compositional parameters used to characterize coal samples was also sought. The testing device, which utilizes two matched transducers, is described

A Literature Review of Type 2 Diabetes Mellitus & the Prevalence of New Onset Atrial Fibrillation

Atrial fibrillation (AF) is one of the most commonly diagnosed cardiac arrhythmias; however, details regarding the risk factors of AF are not necessarily well identified.1,2 This literature review will investigate the likelihood of a direct correlation between pre-existing type 2 diabetes mellitus (T2DM) and new-onset AF. Highlighting a definitive association between AF and T2DM has been a perplexing pursuit in research studies of epidemiology.2 The literature review will examine multiple studies and investigate the extent and significance to which T2DM and AF are related. The specific goal will be to assess whether T2DM patients over the age of 55, with Hemoglobin A1c (HbA1c) less than 7% and lifestyle and medication compliance, are less likely to be diagnosed with new onset AF within 5 years of becoming diabetic, than those with poor diabetic control and elevated HbA1c. HbA1c is a blood test used to measure the average glucose levels in the bloodstream over the past three months. Understanding the relationship between pre-existing T2DM and new-onset AF could greatly benefit and reduce mortality in this patient population. AF is a known risk factor and a common cause of death due to cerebral vascular accidents (CVA).1 Reducing the occurrence of AF among the vulnerable and immunocompromised T2DM patient population could have immeasurable benefits and lead to significant decreases in patient mortality. This literature review will summarize several studies, including meta-analyses, case-control studies, and retrospective cohort studies