Conventional engine technology. Volume 3: Comparisons and future potential

The status of five conventional automobile engine technologies was assessed and the future potential for increasing fuel economy and reducing exhaust emission was discussed, using the 1980 EPA California emisions standards as a comparative basis. By 1986, the fuel economy of a uniform charge Otto engine with a three-way catalyst is expected to increase 10%, while vehicles with lean burn (fast burn) engines should show a 20% fuel economy increase. Although vehicles with stratified-charge engines and rotary engines are expected to improve, their fuel economy will remain inferior to the other engine types. When adequate NO emissions control methods are implemented to meet the EPA requirements, vehicles with prechamber diesel engines are expected to yield a fuel economy advantage of about 15%. While successful introduction of direct injection diesel engine technology will provide a fuel savings of 30 to 35%, the planned regulation of exhaust particulates could seriously hinder this technology, because it is expected that only the smallest diesel engine vehicles could meet the proposed particulate requirements

Experimental investigation and analysis of two sources of nozzle-thrust misalignment

Asymmetry of nozzle's throat produces oscillatory type net side-force axial profile. Using mean values of localized static pressure and Mach number, scaling laws for flat-plate supersonic flow over protrusion are applied to nozzle expansion cone irregularities to give approximate indication of perturbed-pressure profiles and induced side forces

Concept to standardize space vehicle piggyback experiment modules

Study investigates the use of spent launch vehicle stages and modules to support earth orbital operations and functions after successful completion of the primary mission. Emphasis is placed primarily on determination of those uses that afford the greatest utility with minimum possibility of degradation to the primary mission

Automotive fuel economy and emissions program

Experimental data were generated to support an assessment of the relationship between automobile fuel economy and emissions control systems. Tests were made at both the engine and vehicle levels. Detailed investigations were made on cold-start emissions devices, exhaust gas recirculation systems, and air injection reactor systems. Based on the results of engine tests, an alternative emission control system and modified control strategy were implemented and tested in the vehicle. With the same fuel economy and NOx emissions as the stock vehicle, the modified vehicle reduced HC and CO emissions by about 20 percent. By removing the NOx emissions constraint, the modified vehicle demonstrated about 12 percent better fuel economy than the stock vehicle

The Otto-engine-equivalent vehicle concept

A vehicle comparison methodology based on the Otto-Engine Equivalent (OEE) vehicle concept is described. As an illustration of this methodology, the concept is used to make projections of the fuel economy potential of passenger cars using various alternative power systems. Sensitivities of OEE vehicle results to assumptions made in the calculational procedure are discussed. Factors considered include engine torque boundary, rear axle ratio, performance criteria, engine transient response, and transmission shift logic

Cold-flow experimental investigation and analysis of two sources of nozzle thrust misalignment

Cold flow investigation and analysis of two nozzle thrust misalignmen

Social Justice Begins at Home: The Challenges and Successes of a Social Justice Living-Learning Community

This article describes the development of the Dorothy Day Social Justice Community, a sophomore, social justice-focused living–learning community at Marquette University. The authors describe the administration of the community, discuss various elements of the community, and share assessment results. They also detail lessons learned from three years of administering the community, namely that support should be built throughout the university, barriers removed to student participation, a voice given to students in the administration of the community, and assessment done to guide practic

Representations of autism in the media: perspectives in popular television shows

The purpose of this study was to examine how accurately autism was depicted in the media (specifically in television) when compared to the scientifically accepted definition. Data for this study was gathered using coding sheets that outlined the definitive and secondary characteristics of autism. While watching six episodes of the television show The Big Bang Theory and six episodes of the television show Parenthood, examiners evaluated scenes involving the character with autism using a separate coding sheet for each designated scene. Examiners used the continuous coding method, identifying each instance of particular trait observed throughout the scene. Fifteen different traits were analyzed. Traits were recorded on a coding sheet. Results were analyzed qualitatively then compared to scientific definitions of autism to assess the validity of each show. Characteristics of autism were present in both the adult with autism in The Big Bang Theory and the child with autism in Parenthood. Both shows focused primarily on the DSM-IV features to represent the character with autism. Secondary characteristics were also exhibited, but were not as prominent. Differences between the adult character and the child character were also noted

Cultivating Identity: Emerging Adults with Disabilities

Emerging adulthood is a recent concept in psychology that encompasses individuals from ages 18-25. Research has shown that the development of an individualized identity is of great importance in this period of the life. This project explores the elements involved in cultivating an identity as an emerging adult, as well as the role those elements play in the lives of emerging adults with disabilities. My observations were constructed upon an internship with the Transition Options in Postsecondary Settings (TOPS) program for students with intellectual disabilities at The Ohio State University. I have based this project on the works of emerging adulthood scholar Jeffery Arnett, as well as those of disability studies scholars Andrew Solomon and Tobin Siebers. In addition, I use concepts discussed in Think College, a guidebook for individuals leading the TOPS program, and the International Classification of Functioning, Disability, and Health (ICF) model, to aid in understanding the connection between identity and disability. It is my hope that this project will eventually lead to the personal growth of emerging adults with disabilities as they become successful in higher education settings and in life.No embargoAcademic Major: Speech and Hearing Scienc