Effects of Microstructure and Crystallographic Texture on Yield Behavior of Aluminum-Copper-Lithium 2195 Plate.

The focus of this research is to study the effects of deformation and aging on the yield behavior of precipitation-hardened Al-Cu-Li alloys, specifically AI-Cu-Li 2195 plate. Al-Cu-Li 2195 is a relatively new and exceptionally strong, yet lightweight aluminum alloy. Experimental methods applicable to mechanical/structural engineering and materials science problems provide the means for understanding the interrelation of deformation, microstructure, and crystal orientation (texture) as they affect the mechanical properties of crystalline materials. Yield strength is a vital mechanical property in that it defines the boundary of stress that may be applied to a part before a permanent, in some cases, detrimental shape change occurs. The values of yield strength often have directional characteristics, such that the values assessed depend on the direction of measurement. The major elements affecting yield and anisotropic nature of Al-Cu-Li materials are induced crystallographic texture from prior deformation such as rolling, elongated grain structure, and the presence of microscopic precipitates. In order to complete the understanding of how these aspects relate, it is intended to characterize the material and model the yield behavior of the material using theoretical techniques based on polycrystal plasticity. Numerous phenomenological yield expressions exist that describe 2- or 3-dimensional yield behavior (i.e., yield surface or yield locus) and recent advances in computational methods and computer resources have enabled the application of polycrystal yield definitions. Meanwhile, whereas the cumulative effects of precipitate state and crystallographic texture on mechanical behavior have been acknowledged, they have not been widely studied in a quantitative manner. Therefore the intent of this research is to determine the influence of the combination of microstructural effects such as texture (arising from prior deformation) and precipitates (formed during the process of aging) on anisotropy and yield strength of Al-Cu-Li 2195. Finally, the results will be used to discuss the microstructural relationship between characteristics of the alloy and their cumulative effects on material properties

Studies of the vertebrate telencephalon. III. The amygdaloid complex in the shrew (Blarina brevicauda)

No Abstract.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/49940/1/900810305_ftp.pd

Studies of The Vertebrate Telencephalon. I. The nuclear configuration of the olfactory and accessory olfactory formations and of the nucleus olfactorius anterior of certain reptiles, birds, and mammals

No Abstract.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/49918/1/900710108_ftp.pd

The mammalian midbrain and isthmus regions. Part II. Fiber connections of the superior colliculus. B. Pathways concerned in automatic eye movements

No Abstract.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/49946/1/900880103_ftp.pd

Living in a Gender-Binary World: Implications for a Revised Model of Consumer Vulnerability

Baker, Gentry, and Rittenburg’s (2005) model of consumer vulnerability outlines the personal, social, and structural characteristics that frame consumers’ experiences of vulnerability in the marketplace. Later applications and enhancements have expanded consumer vulnerability theory. While the theory has been applied in numerous settings, to date it has not been used to examine the ways that gender identity may intersect with market factors to produce vulnerability. Application in this setting also allows for the integration of various model enhancements, and the examination of vulnerability using a more complete formulation of the theory. Based on in-depth qualitative interviews and collages, along with examples from current marketing practice, our research shows consumer vulnerability to be a useful lens for understanding gender variant consumers’ experiences and the ways in which marketing systems can be engaged to reshape those experiences

A Comparison of the mammalian and reptilian tecta

No Abstract.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/49930/1/900780303_ftp.pd

The nuclear pattern of the non-tectal portions of the midbrain and isthmus in the shrew and the bat

No Abstract.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/49934/1/900780307_ftp.pd

The parietal lobe as an additional motor area. The motor effects of electrical stimulation and ablation of cortical areas 5 and 7 in monkeys

No Abstract.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/49965/1/901030306_ftp.pd

Information technology literacy: examples from academia in Chile and Hawaii

This research describes the challenging task of identifying new required competencies and responding with new ITL programs in two different regions. The first one, in Chile, is part of an Ibero-American initiative, ALFIN (ALFabetizacion en INformacion). The second one, in Hawaii, is part of a nationwide program in the United States, advocated by the American Library Association, the Association of College and Research Libraries, and the American Association of School Libraries, among other agencies. Research findings include the target audience of IT programs; copyright issues; necessary cooperation among domain instructors, education specialists, librarians and technology specialists; tools and systems being considered; and distance educationEducation for the 21 st century - impact of ICT and Digital Resources ConferenceRed de Universidades con Carreras en Informática (RedUNCI

The functional significance of certain duplicate motor patterns on the cerebral cortex in primates including man

SummaryRotation elicitable from direct irritation or implantation of the cortical irritant, penicillin, in both rostral and posterior parts of the temporal operculum and on the island cortex in the monkey (Macaca mulatta) has been described and illustrated in photographs. The pathways to and from these temporal and island areas have been considered and the results obtained have been compared with related reports in the literature on rotation in monkeys and man. The probably role of the precentral and postcentral insular areas and their related paths to the contraction of the muscles (sometimes called the agonists) on the side of an extremity in the direction of movement of that extremity and the commensurate relaxation of the muscles (sometimes called the antagonists) cooperating with them on the other side of the extremity is discussed.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/21848/1/0000251.pd