Experiments on the Distribution of Fuel in Fuel Sprays

The distribution of the fuel in sprays for compression-ignition engines was investigated by taking high-speed spark photographs of fuel sprays produced under a wide variety of conditions, and also by injecting them against pieces of Plasticine. A photographic study was made of sprays injected into evacuated chambers, into the atmosphere, into compressed air, and into transparent liquids. Pairs of identical sprays were injected counter to each other and their behavior analyzed. Small high-velocity air jets were directed normally to the axes of fuel sprays, with the result that the envelope of spray which usually obscures the core was blown aside, leaving the core exposed on one side

Bacteria as Ovipositional Attractants for \u3ci\u3eAedes Aegypti\u3c/i\u3e (Diptera: Culicidae)

The effectiveness of selected bacterial species as ovipositional attractants for Aedes aegypti was compared. Bacterial washes, in glass containers, were utilized as ovipositional substrates and subsequent egg counts determined the degree of ovipositional attractiveness. Among others, Bacillus cereus and Pseudomonas aeruginosa were noted as being effective attractants. It was concluded that A. aegypti displays discriminatory behavior in selecting individual bacterial species for oviposition

Preliminary Photomicrographic Studies of Fuel Sprays

Photomicrographs were taken of fuel sprays injected into air at various densities for the purpose of studying the spray structure and the stages in the atomization of the fuel. The photomicrographs were taken at magnifying powers of 2.5, 3.25, and 10, using a spark discharge of very short duration for illumination. The results indicate that the theory advanced by Dr. R. A. Castleman, Jr., on the atomization of fuel in carburetors may also be applied to the atomization of fuel sprays of the solid-injection type. The fuel leaves the nozzle as a solid column, is ruffled and then torn into small, irregular ligaments by the action of the air. These ligaments are then quickly broken up into drops by the surface tension of the fuel. The photomicrographs also show that the dispersion of a fuel spray at a given distance from the nozzle increases with an increase in the jet velocity or an increase in the air density. The first portions of fuel sprays injected from an automatic injection valve into air at atmospheric density have a much greater dispersion than the later portions, but this difference decreases rapidly as the air density is increased

Interview with Dana Lee

Born in South Korea in 1984, Dana Lee is an attorney for the state of North Carolina. She lived in South Korea until college and came to the US for graduate school. She recently became a U.S citizen. She took up sewing for a little bit and when the pandemic started, she began sewing masks to donate. She joined the Auntie Sewing Squad in November 2021 as a Sewing Auntie.https://digitalcommons.csumb.edu/auntiesewing_interviews/1032/thumbnail.jp

Borders, Barriers, and Brains: Issue Definition in Rights Based Policy Related to Autism

In issue definition related to rights based policy, Canada has been stereotypically understood as taking a more positive, human rights centered approach whereas the United States has been expected to take a more negative, civil rights based tact. While this difference in approach is expected to be a key to a broad base of differences between the two nations and societies, the difference is arguably unusually relevant in the disability policy arena. After all, recent changes in the understanding of disability is transforming disability from an issue of personal culpability overseen by medical professionals and tempered by charitable efforts to an issue of shared social and personal construction for which society at large is responsible. As the incidence of disability continues to rise, broad changes in social, political, and economic infrastructures are the expected result of recent innovations in disability related policy. These changes will affect society well beyond the lives of individuals with disabilities. Over the past decade, Canada, the United States, and several other counties have experienced a surge in the reported incidence of autism. The public management of needs related to the autism baby boom is an unfolding process. This year the Canadian Supreme Court is scheduled to hear the case of Auton v. British Columbia, which is focused on the question access to intensive therapy (specifically Applied Behavior Analysis or ABA) as a medical right. This case is especially interesting in the North American context both because of its inherent implications for the construction of rights and because of the compelling difference in the definition of the therapy from the United States (where students have a rights based access to special education and ABA is consistently defined as an educational right). To examine this question of the relationship between neurodiverisity and the construction of rights I am conducting surveys of issue stakeholders including parents, agency workers, school district representatives, and practitioners in the medical community. The surveys are correlated with the Participation and Activity Limitation Survey run by Statistics Canada. I examine how the current definition of rights in the realm of autism policy fits into the ongoing history of the definition of human and civil rights in North America.Includes bibliographical reference

The Case of Interagency Coordinating Councils: Examining Collaborations in Services for Children with Disabilities

Children with disabilities often require a myriad of services to develop to their full potential. In the current era, centralized services and residential institutions have become less accepted as a matter of course. Interagency Coordinating Councils (ICCs) were created to lead integration of services for children with disabilities in the context of decentralized service provision and a growing preference for person-centered, community based services. In this paper, the Federal ICC and several State ICCs were examined as a case study of the challenges associated with orchestrating multi-level, interagency collaboration. Emergent themes of interorganizational infrastructure, shaping participation, and service purposes and priorities are discussed as important elements of the ongoing creation of a new governance of services for children with disabilities.Includes bibliographical reference