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As video games become more realistic, their applications are ever expanding. They can now show detail at an almost photorealistic level, and allow the player to make any number of decisions that can affect the outcome. Simulations are using this to create more and more realistic scenarios as training for high-risk professions. This creative project will research what is necessary for models that are to be used in educational or training simulations.

<p>The purpose of the essay is to illustrate the differences in understanding and comprehension of time among the characters in the novel Hard Times. These contrasting differences are then argued to compose a crtisism of the industrial society.</p>

The purpose of the essay is to illustrate the differences in understanding and comprehension of time among the characters in the novel Hard Times. These contrasting differences are then argued to compose a crtisism of the industrial society.

The object of this study is to understand the effect of food on the speed of ciliary movement of the gill of cultured hard clam. It is known that the speed of ciliary movement of the gill of cultured hard clam is affected by temperature and salinity, so this study explores the influence of food on speed of ciliary movement of the gill under the different temperature-salinity conditions. This study used three methods to test for the speed of ciliary movement of the gill of cultured hard clam. By the first method, using a piece of aluminum foil tested for the gill in vivo, demonstrated none of Isochysis galbana¡BSynechococcus sp.¡Btemperature¡Bphase and sizes of aluminum foil affected significantly on the speed of ciliary movement of the gill of cultured hard clam. By the second method, using sand tested for the gill in vitro, demonstrated adding I. galbana or the high concentration (1¡Ñ105 cells ml-1) of Tetraselmis chui caused the speed of ciliary movement of the gill of cultured hard clam increased significantly at room temperature, 15 psu. At 32¢J, only the low concentration(1¡Ñ103 cells ml-1) of I. galbana affected significantly the speed of ciliary movement of the gill, and the mean speed of 1.36 cm/min at 32¢J was slower than the mean speed of 2.05 cm/min at room temperature. At 10 psu, both high and low concentration of I. galbana influenced the speed of ciliary movement of the gill, besides the mean speed of 2.82 cm/min at 10 psu was faster than the mean speed at 25 psu. The ciliary movement of the gill of cultured hard clam had no response to I. galbana, and the mean speed of 1.76 cm/min at 25 psu. By the third method, using sands tested for the gill in vivo, the results showed that adding the high concentration of I. galbana caused the speed of ciliary movement of the gill of cultured hard clam to increase significantly, and 33.85¢H of the change of this speed was not different significantly with 33.00¢H of the change of the speed of the gill in vitro adding the high of I. galbana. Besides, the mean speed of 1.99 cm/min by using sands tested for the gill in vivo was not also different significantly with the mean speed of the gill in vitro.Based on the above results, the result tested the gill in vitro by the second method was similar to the result tested the gill in vivo by the third method. Under the same condition, the maximum change of speed of ciliary movement of the gill was about sixty percent from the experiment of adding the low concentration of I. galbana, and the minimum change of speed was about ten percent from the experiment of the low concentration of T. chui. The change of the speed of ciliary movement of the gill of cultured hard clam was most affected by I. galbana, and the change was about thirty percent.

The ground water regimes of three small, undisturbed (natural) and accessible hard rock catchments representing the South, Midlands and the North of Great Britain have been hydrogeologically investigated and compared. There is a dearth of hydro geological information on hard rock areas in Britain. This is because the general availability of surface water and extensive sedimentary aquifers has not encouraged ground water prospecting in hard rock areas. In view of this, low flow study was considered essential since geology exerts a great influence on its characteristics. This was carried out using baseflow recession analysis. From a combination of practical, empirical and theoretical considerations aided by statistical analysis on a computer, baseflow recession constants which dynamically reflect the physiographic and geologic controls within a catchment were derived for the catchments investigated. These were used to characterise the behaviour of the low flows. A new method which is free of random selection of data for baseflow recession analysis is presented and a model for the curve fitting both by computer and manual methods are fully discussed and its application is also presented. Water balance computations for each of the three catchments is presented in chapter 2. Lithological units were identified by a detailed geological study. These were further investigated using resistivity and electromagnetic methods of geophysical survey. Hydrogeological properties of the aquifers were investigated by pumping test analysis and subsequent comparison of hydraulic conductivities from soils and baseflow studies. A water chemistry investigation of spring, river and rain waters has been carried out to try and defme flow paths of the ground water and this is presented in chapter 7. From these investigations, this research concludes that large community water supplies through boreholes can be economical only in one of the catchments (East Dart catchment). In the other two catchments (Blackbrook and Calder catchments), small community and household supplies are possible through boreholes (in some areas) and large diameter wells.

Thesis (Ph. D.)--University of Sydney, 2002. / Title from title screen (viewed Apr. 24, 2008). Submitted in fulfilment of the requirements for the degree of Doctor of Philosophy to the School of Physics, Faculty of Science. Degree awarded 2002; thesis submitted 2001. Includes bibliographical references. Also available in print.

BaBibliography: pages 88-92. / A variety of ceramic and ultrahard materials have been subjected to both solid particle and cavitation erosion. The materials tested include three grain sizes of alumina, stabilised zirconias, sialon, cubic boron nitride and polycrystalline diamond, and these have a range of microstructural, physical and mechanical properties. The damage modes are described for the two types of erosion and the results are critically discussed. It has been shown that different properties and microstructural features control the respective types of erosion. Hardness is the critical property which controls material loss during solid particle erosion. Cavitation erosion in contrast is less sensitive to hardness, but is extremely defect sensitive and preferentially attacks weak or damaged regions on the target. Grain size and shape, and th.e properties of the grain boundary or intergranular phase exert a strong influence on both types of erosion. It has in addition been concluded, that a propensity for a stress induced phase transformation, such as that exhibited by stabilised zirconia, will benefit the resistance of a ceramic to erosion. Ultrahard materials generally outperform the structural ceramics that were tested. While it was not possible to ascertain the effects of grain size conclusively, a large extent of intergrowth between the crystallites during manufacture appears to be beneficial to erosion resistance.

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The growing performance gap between CPUs and sustainable disk I/O is a major hurdle in supporting modern applications. As the CPUs become faster, this gap is projected to worsen, thus making it a critical problem that should be addressed with high priority. Although efficient algorithms have alleviated this problem, the mechanical nature of the disk places physical limits on the achievable speedup. On the other hand, newer technologies such as flash memory promise significant improvements in access time, power consumption, and storage density. However, the mature disk technology offers the most favorable cost per bit ratio. Since replacing standard hard disks with flash disks is prohibitively expensive, hybrid hard disks augment the standard hard disk with a small amount of flash memory. By exploiting the beneficial aspects of both technologies they aim to provide breakthrough increase in performance. Nevertheless, hybrid hard disks pose several significant design challenges. Effective and efficient algorithms to manage the flash, the disk, and interaction between them are required. To facilitate rapid and easy exploration of the design space for hybrid hard disk algorithms we present the design and implementation of a flexible and extensible simulator that models hybrid hard disks. The simulator is flexible in that it models several configurations in which the flash and the magnetic medium interact. The simulator is extensible in that it provides a simple framework to plug in several algorithms to manage the hybrid hard disk. We validate our simulator and analyze the performance of the hybrid hard disk for real workloads. / Master of Science