A biaxial weld strength prediction method

Method is given for design of structures which are subjected to multi-axial loading due to internal pressure. The biaxial strength of a structure can be predicted by modifying the uniaxial formula

A Study to Investigate the Relationships among Three Tests which Purport to Measure Perceptual Skills in Kindergarten Children

The study was divided into two parts. Part one was concerned with establishing the relationships among the Rutgers Drawing Test, the Metropolitan Readiness Test and the Frostig Test of Visual Perception. Answers were sought to the following questions: 1) How do the tests correlate with one another? 2) What are the shared variances among the tests? Part two of the study related first grade reading achievement as measured by the Primary Reading Profiles (level one) with the Rutgers and Metropolitan scores. Specifically: 1) Does the study support the work of Williams, who found a correlation of .80 between the Rutgers and the Primary Reading Profiles? 2) Is the Rutgers able to predict reading achievement as effectively as the numerical sub-test of the Metropolitan Readiness Test

Ultrastructural Studies of Corneal Scar Tissue

This thesis is concerned with the study of the ultrastructure of corneal scar tissue. The comeal scar tissue studied was produced in rabbits from three different corneal wounds. These were a manual anterior keratectomy, an excimer laser ablation and a full-thickness 2mm button wound. In each case, a number of animals was used which were sacrificed at different time intervals. For the manual keratectomy and laser ablation, electron microscopy, incorporating cuprolinic blue staining, was the main technique used to study the scar tissue arising from these wounds. The full-thickness wounds were examined using synchrotron X-ray diffraction at Daresbury, UK. From low angle and high angle X-ray diffraction patterns, average values were calculated for centre-to-centre collagen fibril separation, the spread of fibril separation, the fibril diameter and the intermolecular spacing within the collagen fibrils. The electron microscope studies showed that the same pattern of healing was observed in both types of wounds. An inflated population of keratocytes was observed under the epithelium at one week of healing. Around these keratocytes were vacuoles in the tissue, which were associated with large numbers of abnormally sized proteoglycan filaments. Up to 2 weeks of healing the population of abnormal filaments increased, as did the vacuoles in the tissue, after which they decreased. However, after nine months of healing the scar tissue is still clearly structurally distinguishable from original stromal tissue. A measure of the collagen fibril density (number per unit area), demonstrated a significant difference between the scar tissue and control. However, it also showed that the number density of fibrils increased with time in the scar tissue. A measure of the range of the collagen fibril diameters in scar tissue up to nine months, indicated that there is a small increase in the range of fibril diameters but the average diameter remained unchanged. Radial distribution functions, from normal corneal stroma and from nine month scar tissue, showed that the short range ordering of the collagen fibrils in the scar tissue was reduced. The results from the X-ray diffraction showed that, the average spacing between collagen fibrils remains slightly above normal. There is a small increase in the average fibril diameter and the intermolecular spacing is slightly lower than normal. The greatest change was in the range of interfibrillar spacing. The ratio of height to width of the distribution gives a quantitative estimate of this spread. After 3 weeks, this ratio was 0.3, increasing to 1.9 after 21 months; this is still significantly lower than the normal controls (6.2). X-ray diffraction of the Morquio syndrome cornea showed that the interfibrillar spacing was reduced 10% compared to normal and that the intermolecular spacing was normal. In the TEM, two populations of fibril diameters were observed, one at 24-30nm (the normal range for human corneal collagen fibrils), and the other at 32-44nm. Cuprolinic blue staining revealed abnormally large proteoglycan filaments scattered throughout the stroma many of which were associated with lacunae in the collagen matrix

Students learning with communities

Students work in groups to research and prepare a short scientific demonstration and hands-on activities for partner primary school children in an initiative called “A Slice of Science”. Each member of the group prepares on section of the lesson plan and the group has time to practice and prepare the lesson on-site before going to the primary school to run the demonstration/workshop. Students are assessed based on the use of online discussion board activities and their participation in class. Further assessment includes the standard of the lesson delivered off site, a reflective essay and a log-book

Biaxial strength of MIG-welded and TIG- welded 2014-T6 at 70 deg, -320 deg and -423 F

Tests to develop biaxial strength allowables for MIG and TIG welds in aluminum alloy

Context based learning

The students are provided with journal articles or academic papers from which they must design their experimental procedure to produce a target drug (or compound). The student then carries out all the typical duties of an industrial scientist (e.g. health and safety, reagent preparation, reactions, analysis, data recording, data analysis and report writing). Finally, the student must estimate the cost of producing a specific quantity of the target drug based on their method

Promosi Olahraga Tinju Adat Etu Sebagai Pariwisata Tahunan di Kecamatan Boawae Kabupaten Nagekeo

This study aims to determine how the implementation of Etu traditional boxing in Bhoawae sub-district and the promotion of this sport as a type of tourism in Nagekeo district, East Nusa Tenggara. This research is a qualitative descriptive study with 4 informants as the subject of the study. The data collection technique was carried out by in-depth interviews, documentation and observation. Data were analyzed using Miles Huberman's interactive analysis model. The results showed that the procedures for implementing the traditional Etu Boxing were carried out by traditional rituals and traditional dances. Boxers wear special equipment such as headbands, tai kolo, dhese and you gauze. Each round will end if one of the boxers has bleeding which symbolizes fertility. In conclusion, Etu is a boxing attraction that involves traditional rituals as an expression of gratitude for the people of the Bhoawae traditional village in welcoming the harvest, while the Etu promotion form currently being pursued by the government Nagekeo area is by making video story telling Keywords: Boxing, Adat Etu, Sports Promotion, Touris