1,120 research outputs found
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Crotalus tortugensis
Number of Pages: 5Integrative BiologyGeological Science
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A new approach to the assessment of odour nuisance
After reviewing the current situation with regard to the assessment of odour nuisance, the development of a new approach is presented.
Descriptions are given of the new techniques, which have been developed for quantifying odour intensity, concentration, hedonic tone and annoyance. Statistical analyses of laboratory and field test data collected using these techniques provided mathematical relationships 1 for the assembly of the odour nuisance assessment model. .The nuisance criteria adopted was derived from various guidelines and standards from the U.S. and Europe. For completeness an atmospheric dispersion model was developed for estimating the behaviour of odours downwind of the source. This made it possible to assess the probability of an odour nuisance occurring, using any one of a number of different points of knowledge, e.g. existing or future situations.
The assessment method has been tested against independent historical data and been demonstrated to be an effective tool in predicting odour nuisance with a consistency better than any existing method.
A listing is provided for a computer program to enable the user to apply the model both quickly and effectively
Connecting Threads: Quilts as Symbols in Adolescent Literature
Quilting is a functional art form that has been practiced by generations of American women. In the past, quilting provided women with an outlet for personal expression. Learning to quilt acted as a rite of passage from childhood to adulthood. Quilting provided women with a means of recording their personal histories as well as an opportunity for socializing: quilting bees were social occasions that allowed women to gather together and establish connections with each other as they connected their quilt pieces.
Feminist history has recognized the quilt as an important symbol for women. Quilts represent strength, resiliency and the creative spirit that allowed women to cope with death, poverty and other hardships. In texts for adolescents , quilts are used to help women overcome such hardships and represent the strong bonds of love and family that female characters create within the home. Examining adolescent novels that make use of the quilt as a symbol reveals a series of images reflecting the role of women and young girls as storytellers, historians and keepers of the family. The way feminine roles are depicted accurately illustrates not only the community between women established by quilting, but also the strong bonds that quilts symbolize between generations of women.
The connections made between characters within the stories while stitching together the quilts are vital to the development of young women. Young girls need connections to grow and communicate, and a united family, represented in adolescent novels by the patchwork quilt, provides these connections. In these novels, the creation of quilts helps characters explore issues of trust, love and acceptance of themselves and others. The quilt acts as a unifying force for women in young adult novels in much the same way it acted as a connecting force among women in the past. This sense of unity encourages feminine development, and the quilt acts as a material manifestation of the young girl\u27s coming of age.
The quilts in adolescent novels act to bring together female characters through history and across time. Adolescent novels often use quilts to represent family history and connections passed through generations of characters. In this way, the quilt as a symbol in adolescent literature mirrors its role in women\u27s histories. Historically, by uniting women and providing an artistic outlet when few others were offered, quilts offered new meaning to what began as a simple domestic task. In adolescent novels, the creation of quilts becomes a labor of love uniting characters, telling stories, and providing a means of expression for women
Literature Curriculum for Secondary Students with Varied Learning Styles
Certain literary works in the secondary English curriculum no doubt adapt themselves more readily than others to teaching methods other than the traditional, verbal style of teaching. This study has sought to develop a literature curriculum incorporating the study of Julius Caesar for secondary English students which focuses on students\u27 needs and interests, as described by their individual learning styles. Results of this study indicated that teachers of English will need to continue to modify the literature curriculum in order to address the learning styles of their students
Connecting Threads: Quilts as Symbols in Adolescent Literature
Quilting is a functional art form that has been practiced by generations of American women. In the past, quilting provided women with an outlet for personal expression. Learning to quilt acted as a rite of passage from childhood to adulthood. Quilting provided women with a means of recording their personal histories as well as an opportunity for socializing: quilting bees were social occasions that allowed women to gather together and establish connections with each other as they connected their quilt pieces.
Feminist history has recognized the quilt as an important symbol for women. Quilts represent strength, resiliency and the creative spirit that allowed women to cope with death, poverty and other hardships. In texts for adolescents , quilts are used to help women overcome such hardships and represent the strong bonds of love and family that female characters create within the home. Examining adolescent novels that make use of the quilt as a symbol reveals a series of images reflecting the role of women and young girls as storytellers, historians and keepers of the family. The way feminine roles are depicted accurately illustrates not only the community between women established by quilting, but also the strong bonds that quilts symbolize between generations of women.
The connections made between characters within the stories while stitching together the quilts are vital to the development of young women. Young girls need connections to grow and communicate, and a united family, represented in adolescent novels by the patchwork quilt, provides these connections. In these novels, the creation of quilts helps characters explore issues of trust, love and acceptance of themselves and others. The quilt acts as a unifying force for women in young adult novels in much the same way it acted as a connecting force among women in the past. This sense of unity encourages feminine development, and the quilt acts as a material manifestation of the young girl\u27s coming of age.
The quilts in adolescent novels act to bring together female characters through history and across time. Adolescent novels often use quilts to represent family history and connections passed through generations of characters. In this way, the quilt as a symbol in adolescent literature mirrors its role in women\u27s histories. Historically, by uniting women and providing an artistic outlet when few others were offered, quilts offered new meaning to what began as a simple domestic task. In adolescent novels, the creation of quilts becomes a labor of love uniting characters, telling stories, and providing a means of expression for women
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Support-Free Infiltration of Selective Laser Sintered (SLS) Silicon Carbide Preforms
Non-metallic objects are often difficult to manufacture due to high melting temperatures,
poor sinterability, limited ductility, and difficulty in machining. Freeform fabrication techniques
coupled with liquid infiltration offer a cost-effective and rapid manufacturing mechanism for
composite parts with complex geometry and adequate properties. Selective laser sintered (SLS)
silicon carbide (SiC) preforms infiltrated with liquid silicon develop localized infiltrant overextrusions onto surfaces and at surface irregularities. Several shrinkage mechanisms including
densification were studied as possible causes of these overfilling extrusions, and the results are
discussed below. This research was supported by NSF Grant Number DMI-0522176.Mechanical Engineerin
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An Evaluation of the Mechanical Behavior of Bronze-NI Composites Produced by Selective Laser Sintering
Mechanical properties of Bronze-Nickel composites produced by Selective Laser Sintering (SLS)
were evaluated by constant displacement tension tests. These were studied as a function of SLS
process parameters - laser power density, scan speed, scan spacing, scan direction and layer
thickness. The strength data was then correlated to the microstructure and the part bulk density. To
further enhance the part densities and the mechanical properties, post-SLS sintering was studied.
The relationships between SLS process parameters, post-SLS sintering parameters and the
resulting microstructures, part bulk density and the mechanical properties will be described.Mechanical Engineerin
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Selective Laser Sintering of Zirconia with Micro-Scale Features
Recent work in Selective Laser Sintering of ceramics at the University of Texas at Austin demonstrates
the capability to produce zirconia parts with fine features. Zirconia powder was pre-processed into
spherical particles, laser sintered with a sacrificial polymer binder, infiltrated and post-sintered to higher
density. Optical micrographs show that hole sizes of 180 /-tm are possible in fully ceramic components.Mechanical Engineerin
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