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Bioresource and Agricultural Engineering

2009

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Articles 91 - 93 of 93

Full-Text Articles in Engineering

Grand Challenges For Biological Engineering, Jeong-Yeol Yoon, Mark R. Riley Jan 2009

Grand Challenges For Biological Engineering, Jeong-Yeol Yoon, Mark R. Riley

Department of Biological Systems Engineering: Papers and Publications

Biological engineering will play a significant role in solving many of the world's problems in medicine, agriculture, and the environment. Recently the U.S. National Academy of Engineering (NAE) released a document "Grand Challenges in Engineering," covering broad realms of human concern from sustainability, health, vulnerability and the joy of living. Biological engineers, having tools and techniques at the interface between living and non-living entities, will play a prominent role in forging a better future. The 2010 Institute of Biological Engineering (IBE) conference in Cambridge, MA, USA will address, in part, the roles of biological engineering in solving the challenges presented …


Simulation Of Corn Stover And Distillers Grains Gasification With Aspen Plus, Yasar Demirel, A Kumar, H Noureddini, D.D. Jones, M.A. Hanna Dec 2008

Simulation Of Corn Stover And Distillers Grains Gasification With Aspen Plus, Yasar Demirel, A Kumar, H Noureddini, D.D. Jones, M.A. Hanna

YASAR DEMIREL

A model was developed to simulate the performance of a lab‐scale gasifier and predict the flowrate and composition of product from given biomass composition and gasifier operating conditions using Aspen Plus software. Mass balance, energy balance, and minimization of Gibbs free energy during the gasification were applied to determine the product gas composition. Carbon conversion efficiency and tar content were provided to the model as inputs as these could not be predicted by the model based on minimization of Gibbs free energy. Experiments for validation of the model were performed on a lab‐scale fluidized bed gasifier using corn stover and …


Machines Versus Compassion: Comparing Male And Female Students In Biology-Based Engineering Discipline, Paul D. Schreuders, Susan E. Mannon, Brian Rutherford Dec 2008

Machines Versus Compassion: Comparing Male And Female Students In Biology-Based Engineering Discipline, Paul D. Schreuders, Susan E. Mannon, Brian Rutherford

Paul Schreuders

Biology‐based engineering disciplines have been the most successful at recruiting women into engineering. An analysis of gender differences in student experiences in such disciplines helps illuminate ways to combat the under‐representation of women in engineering. This article examines the academic backgrounds, expressed interests, and student experiences of 424 women and men in biology‐based engineering programs throughout the country. Gender similarities in the broad engineering activities of design, building, and analysis were found. Gender differences were identified in the applications of these activities. Male students were significantly more interested in the applications in the areas of agriculture, automation, and irrigation, while …