It's Not All Games

Students, K-12 to college, live in an information rich environment online, in games, and at school. How can libraries mimic these environments to instruct students how to find quality information? What strategies can we employ to reach this Millennial Generation

Sonata Recital: Frank Schwarzwalder, Violin; Grace Pun, Piano; December 10, 1974

Hayden AuditoriumTuesday EveningDecember 10, 19748:15 p.m

Implementation of 30-Year Land Use Rights for Farmers under China\u27s 1998 Land Management Law: An Analysis and Recommendations Based on a 17 Province Survey

Recent legal and policy measures demonstrate the commitment of China\u27s central leadership to the development and implementation of a legal framework providing long-term, secure land tenure to its nearly 800 million farmers. The results of a 17 province, 1,621 household survey conducted in August 1999 show that considerable progress has already been made toward this goal. However, a number of key issues related to both the implementation of existing legal rules and the development of additional legislation addressing rural land rights must be addressed for the process to be complete

Ensemble Concerts: Chamber Music Program, May 9, 1974

Centennial East Recital HallThursday EveningMay 9, 19748:30 p.m

Technological innovations in libraries, 1860-1960: An anecdotal history : by Klaus Musmann. Westport, CT: Greenwood, 1993. 250p. $55. ISBN: 0-313-28015-0 LC: 93- 18143 ISSN: 0084-9243. Permanent Paper (Contributions in Librarianship and Information Science Series, No. 73.).

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/31467/1/0000389.pd

Reconstructing the Berliner Schloss: Architecture and Memory after German Reunification

This thesis addresses the German government’s proposed reconstruction of Berlin’s city palace, the Stadtschloss, from a critical perspective. The exact replication of the old façades attempts to recreate a lost relationship in the city’s geographical and cultural center. An exploration of the layering of historical events and memories on the palace’s site show how they may be revealed and recalled. By analyzing case studies of reconstructed historic districts in Dresden and Warsaw, along with theories of preservation and memorialization, this thesis proposes an alternative to the artificial façade reconstruction. Through the coupling of museum program with a landscape garden, ‘found’ ancient monuments and artifacts from the city of Berlin are used to evoke the individual and collective memories of the multi-layered, intertwined histories of the reunified German capital

A mathematical model for the energy stored in green roofs

A simple mathematical model to estimate the energy stored in a green roof is developed. Analytical solutions are derived corresponding to extensive (shallow) and intensive (deep) substrates. Results are presented for the surface temperature and energy stored in both green roofs and concrete during a typical day. Within the restrictions of the model assumptions the analytical solution demonstrates that both energy and surface temperature vary linearly with fractional leaf coverage, albedo and irradiance, while the effect of evaporation rate and convective heat transfer is non-linear. It is shown that a typical green roof is significantly cooler and stores less energy than a concrete one even when the concrete has a high albedo coating. Evaporation of even a few millimetres per day from the soil layer can reduce the stored energy by a factor of more than three when compared to an equivalent thickness concrete roof

Recital: Marian Hong, Piano; Frank Schwarzwalder, Violin; Karen Dickelman, Viola; Gail Makeever, Cello; May 17, 1971

Centennial East Recital Hall May 17, 19718:15 p.m

Modelling mass transfer from a packed bed by fluid extraction

A mathematical model describing the erosion or leaching of a solid material by a flowing fluid in a column is developed. This involves an advection-diffusion equation coupled to a linear kinetic reaction describing the mass transfer between the solid and fluid. Two specific cases are analysed, the first where the extracted material has the same saturation solubility and rate of mass transfer throughout the process, the second where the solubility switches after a certain amount of erosion. In the first case there are only two model unknowns, the solubility and mass transfer coefficient, in the second there is a third unknown, the second solubility. Exploiting the fact that erosion is a slow process (relative to the flow rate) a perturbation solution based on the smallness of the amount removed is developed to describe the concentration and radius throughout the column. From this an analytical expression for the extracted fraction is obtained. The extracted fraction has a large linear section which results in a simple calculation to estimate the initial solubility from a very few or even a single data point. The remaining unknowns may also be easily calculated from the formula and later data points. A numerical solution, using finite differences, is developed to verify the perturbation solution. The analytical solution is also verified against experimental data for the removal of lanolin from wool fibres with a supercritical CO2/ethanol solvent. Values for the mass transfer rate and two solubilities are obtained for different pressures and shown to provide excellent agreement with a series of experimental results for the extracted fraction

Contaminant Removal by Adsorption

We develop a mathematical model for filtration in a cylindrical column packed with a porous material. The base model involves coupling an advection-diffusion equation to a sink term which represents the sorption and is appropriate when trace quantities are removed from the fluid. This is then extended to include the variation of velocity and pressure, which is appropriate for the removal of significant quantities, and leads to a system of five coupled equations. For the case of CO2 removal we are able to reduce the complexity of the equations and to derive an analytical expression for the breakthrough curve. This expression is then verified against experimental data for the adsorption of CO2 from gas and antibiotics from water. Finally, we show how the work may be modified to deal with certain extraction processes, where a clean fluid is used to remove material from the porous matrix, such as lanolin from wool