Biological Systems Engineering

Seminar Archive Spring 2010

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BSysE-598 Coordinator: Dr. Jeffrey Layton Ullman


April 23, 2010 CUE 319 4:00 - 5:00 PM

Ray Ledgerwood from the Washington State Conservation commission will present:

"Promises Made - Promises Kept: Conservation Efforts in Washington State"

April 15, 2010 LJSmith 259 8:00 - 9:00 AM

Tamara Mobbs, Biological and Agricultural Engineering Masters candidate will present:

"Effects of Four Soil Surfactants on Four Soil-Water Properties in Sand and Silt Loam"

Examination will follow at 9:00 AM in LJSmith 263.

April 9, 2010 CUE 319 4:00 - 5:00 PM

Dr. Kimberlee 'Kim' Kidwell, Associate Dean, Academic Programs in the College of Agriculture Human and Natural Resource Sciences will present:

"Training Elite Scientists in the 21st Century: It Takes More Than Being 'Smart' to Be Successful"

Examination will follow at 9:00 AM in LJSmith 263.

April 9, 2010 LJSmith 259 1:00 - 2:00 PM

Gopal Tiwari, Ph.D.Engineering Science candidate at Biological Systems Engineering, will present his research seminar:

"Computer Simulation of Radio frequency (RF) Heating in dry Food Materials and Quality Evaluation of a Fresh Fruit 'FUYU' Persimmon After RF Treatment"

Examination will follow at 2:00PM.

April 2, 2010 CUE 319 4:00-5:00PM

Dr. Howard Q. Zhang, Director for the USDA ARS Western Regional Research Center will present:

"USDA ARS Research Programs at the Western Regional Research Center"

Dr. Zhang will discus ongoing research projects at the Center as well as his career development from WSU and WRRC.

March 26, 2010 CUE 319 4:00-5:00PM

Dr. Barbara Rasco, Professor and Scientist in the School of Food Science, Washington State University, will present:

"Food Safety in the Developing World"

Dr. Rasco will cover important issues facing us in the field of food technology regarding responsible and sustainable development using examples from various projects around the world.

March 12, 2010 CUE 319 4:00-5:00PM

Dr. John Gardner, Vice President of Economic Development and Global Engagement at Washington State University will present:

"WSU's Economic Development Role in Clean Technology"

Dr. Gardner will define economic development as a mission of the land grant university, describe the role of Economic Development and Global Engagement as a catalyst for impacts from WSU research and educational assets, and present/discuss several specific WSU Clean Technology efforts that he has been working on here and abroad.

March 5, 2010 CUE 319 4:00-5:00PM

Dr. Denny C. Davis, Professor / Scientist Department Chemical Engineering and Bioengineering WSU, and former chair and faculty member of the Department of Biological Systems Engineering (Agricultural Engineering) will present:

"Principles and Practices for High-Performance Learning and Assessment"

Teaching and learning are increasingly important in a society where knowledge expansion and global conditions change so rapidly. As educators, we must  understand principles that undergird our profession so we can fulfill our responsibilities with confidence and effectiveness. This seminar will present basic principles from educational research that are fundamental to guiding teaching and assessment practices. From these principles and examples of their application, you will be better able to prepare the next generation of engineers for the challenges they will face.

February 19, 2010 CUE 319 4:00-5:00PM

Dr.Larry James, Associate Executive Vice President at Washington State University and former chair of the Department of Biological Systems Engineering (Agricultural Engineering) will present:

February 12, 2010 CUE 319 4:00-5:00PM

Gopal Tiwari, Biological Systems Enginneering Graduate Student will present:

"Computer Simulation of Rradio Frequency Heating of Dry Food Products"

Radio frequency heating is a novel rapid heating method. In recent years, the technology has been explored to heat food products for insect and pest control. The major problem for the technology to be commercially applicable is its heating non uniformity in the treated food products. Computer simulation has been developed to help understand the complex behavior of RF heating in dry food products.

Fermin Resurreccion, Biological Systems Engineering Graduate Student wil present:

"Electromagnetic and Heat FDTD simulation on microwave system"

Electromagnetic-heat coupled simulation is necessary to predict the heating pattern and heating rate of food processed in any microwave system. Simulation result would aid researcher on the design of microwave oven and oven cavities. This presentation will focus on FDTD numerical method of EM-Heat solution implemented using Quickwave Software on a food packed in polymeric tray. An overview on how to draw a model, set-up the necessary parameters, and extract post processing parameter will be discussed. A sample model using domestic microwave oven and four-cavity microwave system will be used to illustrate FDTD method.

February 5, 2010

Dr. Jennifer Adam, Assistant Professor in the Department of Civil and Environmental Engineering, will present:

"Climate Change Impacts on Pacific Northwest Hydrology: Applications over Agricultural Lands"

On average, global mean temperature has increased nearly 1 °C during the 20th century and is projected to increase another 1 to 6 °C by the end of the 21st century. Increasing temperatures and changes in precipitation patterns have the potential to impact numerous hydrology-related issues in the Pacific Northwest (PNW). Many of these impacts relate directly to agriculture, including surface water supplies for irrigation, crop-available soil moisture, and loss of top soil. Techniques have been developed to assess some of these potential impacts. One technique involves the use of numerical models to simulate the hydrological conditions of a site in an altered climate. The hydrology model is calibrated and evaluated using historical meteorology and hydrology data; subsequently, output from a Global Climate Model (GCM) is used as input to the hydrology model to simulate the hydrological impacts of the GCM-projected climate change. In this presentation, I will describe a few of my current projects that involve exploration of the potential impacts of climate change on hydrologic processes over PNW agricultural lands.

January 29, 2010

Venkata Vaddella, Graduate Research Assistants in the Department of Biological Systems Engineering will present:

"Comparison of Ammonia Emissions from Post-Collection Storages of Scraped and Flushed Dairy-Cattle Manure"

Manure scraping and flushing are the two common manure handling systems in concentrated animal feeding operations (CAFOs) in the United States. Post manure storage facilities such as anaerobic lagoons and manure pits are known to account for the largest portion (75-80%) of ammonia (NH3) volatilization in CAFOs. A series of bench scale experiments were conducted for a period of three weeks in controlled laboratory conditions to quantify and compare NH3 losses from simulated storages of scraped manure and flushed manure based on the exposed-surface-area to volume ratio (ESAVR) and also based on the exposed surface area (ESA). Results indicated that based on the same exposed-surface-area to volume ratio (ESAVR) and also based on the same exposed surface area (ESA), NH3 emission fluxes are greater from scraped dairy manure storages than flushed manure storages.

Brian Bodah, Graduate Research Assistant in the Department of Biological Systems Engineering will present:

"Impacts of Crop Tillage Practices on Runoff and Erosion Rates in the Western Palouse Region"

Fallow management practices that keep fields out of production and void of vegetation as part of the regular crop rotation are often utilized in eastern Washington to ensure adequate soil moisture for the following crop.  Repeated tillage has traditionally been used for weed control.  However, chemical fallow (chem-fallow) represents an alternative practice that minimizes soil disturbance by using herbicides to suppress weeds in place of heavy tillage. In order to assess conservation benefits associated with chem-fallow and similar management types compared to conventional tillage practices, a rainfall simulator was used to mimic a severe runoff event. Preliminary results showed that the chem-fallow plot retained about 30% more water than the adjacent conventional fallow system and exhibited almost a 12-fold reduction in sediment loss.  However, slope was also found to play a significant factor governing erosion, and further trials will examine runoff and soil loss on fields exhibiting different tillage practices over a range of slopes.

January 22, 2010

Scott Economu, Research Ttechnologist II in the Department of Civil and Environmental Engineering will present:

"Basic Lab Practices and Quality Control"


Seminars from previous semesters can be found in our seminar archive.

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