Physical Sciences and Mathematics Commons^™

Geosciences Newsletter - 2011, Department Of Geosciences

Geological and Environmental Sciences News

Vol. 5, No. 1

• Publications
• MGRRE
• Field Trips
• Graduate News
• Alumni
• Advisory Board
• Gifts
• Grants
• Alumni Update

Newsletter, Fall 2011, College Of Arts And Sciences

Physics Newsletter

Contents from Vol 8, No. 1 of the Newsletter for Friends of the Western Michigan University Department of Physics:

• News
• Staff News
• Faculty News
• Alumni News
• Student News
• Department of Physics Roster

A Rank-Based Estimate For Cell Lineage Data, Tamer M. Elbayoumi, Jeffrey Terpstra

Research and Creative Activities Poster Day

The presence of aberrant observations (i.e. outliers) in cell lineage data is quite common. As such, it is desirable to have an outlier-resistant estimation procedure as an alternative to least squares estimation (maximum likelihood estimation under normality). In this work, we consider rankbased estimates of the parameters of a first order bifurcating autoregressive [BAR(1)] model. The BAR(1) model was proposed by Cowan and Staudte (1986) for cell lineage data. In it, each line of descendents follows a first order autoregressive [AR(1)] model and allows sister cells from the same mother to be correlated. Real examples and a simulation study are …

K-X-Ray Emission In Fast O5+ On Ar Collisions, Tamer Elkafrawy

Research and Creative Activities Poster Day

The goal of the present work is to observe x-rays from oxygen for the purpose of investigating resonant-transfer and excitation (RTE) [1], and projectile and target x-ray emission resulting from inner-shell capture. Projectile energies in the range 5-25 MeV will be examined to investigate RTE for heavy targets [2,3].

Newsletter, Spring 2011, College Of Arts And Sciences

Physics Newsletter

Contents of Vol 7, No. 2 of the Newsletter for Friends of the Western Michigan University Department of Physics:

• News
• Staff News
• Alumni News
• Student News
• Department of Physics Roster
• Feedback Form

The Impact Of Driving Conditions On Phev Battery Performance, Nathan Christensen, John Patten, Steven Srivastava, Gary P. Nola

Green Manufacturing Research Journal

The battery performance of a modified Prius with a 5 kWh plug-in battery was documented for a year to determine the impact of environmental conditions and user attributes on vehicle performance. Both fuel economy and pure electrical efficiency were compared to ambient temperature. The fuel economy has a positive relationship with ambient temperature until approximately 70˚F where the efficiency begins to drop. Electrical performance has a positive linear relationship with ambient temperature. With the emergence of electric vehicles (EVs) and PHEVs from a variety of automotive manufacturers, information on EV and PHEV performance for consumers will become more important.

Wind Charged Plug-In Hybrid Electric Vehicle, John Patten, Nathan Christensen, Steven Srivastava, Gary Nola

Green Manufacturing Research Journal

With the emergence of electric vehicles (EVs), hybrid vehicles HVs) and plug-in hybrid electric vehicles (PHEVs) from a variety of automotive manufacturers, the electrical grid will need to meet new challenges in supplying the electricity required to charge these vehicles. To help supply the electricity needed by these vehicles, we compared the electricity consumption of a modified Toyota Prius (PHEV) and the output of a small residential wind turbine over the course of one year. Our research seeks to determine whether a small residential wind turbine can supply the necessary electricity demanded by the PHEV annually.

Research Report 2011, Western Michigan University

Physics Research Reports

• Introduction
• From the Chairperson
• Atomic and Molecular Physics
• Condensed Matter Physics
• Nuclear Physics
• Physics Education
• Research and Public Lectures at WMU
• Personnel January 1- December 31, 2011