College of Engineering Poster Presentations Copyright (c) 2013 Boise State University All rights reserved. http://scholarworks.boisestate.edu/eng_11 Recent documents in College of Engineering Poster Presentations en-us Sun, 27 Jan 2013 15:19:27 PST 3600 Camera Imaging System http://scholarworks.boisestate.edu/eng_11/10 http://scholarworks.boisestate.edu/eng_11/10 Fri, 06 May 2011 12:46:41 PDT
  • Magnetic shape memory alloys are functional materials which can remember their shape
  • Currently, twin boundaries as a function of magnetic field angle can not be measured
  • Information about shape changes of different parts of the sample will increase the understanding of deformation mechanisms

]]> Wayne Kreimeyer et al. Mapping the Electric Fields for Geotechnical Applications http://scholarworks.boisestate.edu/eng_11/9 http://scholarworks.boisestate.edu/eng_11/9 Fri, 06 May 2011 06:46:38 PDT Volatile Organic Compounds (VOC’s) such as gasoline are contaminating our country's groundwater. From leaky underground tanks to hazardous spills, which put our groundwater at risk and will potentially contaminate our drinking water. Air sparging is used to clean up these harmful chemicals. However, air sparging is a slow process taking months or even years to reach acceptable contaminate levels. Air sparging uses an air injection well to pump air into the contaminated ground water. The harmful chemicals are volatilized as the air rises to the surface and removed with soil vapor extraction wells.

]]> Sara Kaster et al. Effects of Electromagnetic Stimulation on Soil’s Hydraulic Conductivity http://scholarworks.boisestate.edu/eng_11/8 http://scholarworks.boisestate.edu/eng_11/8 Thu, 05 May 2011 14:20:52 PDT Our research involves the identification of the different effects that electromagnetic (EM) stimulation has on varying soil properties; properties such as hydraulic conductivity. This work could prove to be of importance in furthering our understanding of the effects of EM stimulation with regard to the hydraulic conductivity of soil. A positive correlation between EM stimulation and an increase in hydraulic conductivity could have broad applications for environmental contaminant mitigation in soils and for various geotechnical construction applications such as minimizing soil setup during pile driving operations. EM waves can be used to enhance soil and groundwater remediation in a way that no heat is generated, yet the desired mechanisms in soil are stimulated. Our approach in this project involved the construction of a customized permeameter that enabled us to measure the change in hydraulic conductivity given a tuned EM wave from an antenna. An EM wave with a fixed frequency and varying power output was sent through the permeameter while the hydraulic conductivity was measured in real time. Tests performed for the research project were successful in showing a correlation between hydraulic conductivity and EM stimulation.

]]> Jonathan Rocha et al. Minimization of Surface Impurities in Anodized Aluminum http://scholarworks.boisestate.edu/eng_11/7 http://scholarworks.boisestate.edu/eng_11/7 Wed, 04 May 2011 11:54:29 PDT Anodized aluminum is commonly used to create wear-resistant parts for process tools used in the semiconductor industry. Sinc microchips require high purity manufacturing environments[1], surface impurities on tooling needs to be minimized.

It has been determined that anodized aluminum parts are one source of contamination. This project investigates the source of trace elements in anodized aluminum 6061 parts and ways to reduce them.

]]> Logan Ward et al. RF Sputter Optimization of Germanium Sulfide (GeS<sub>2</sub>) Thin Films http://scholarworks.boisestate.edu/eng_11/6 http://scholarworks.boisestate.edu/eng_11/6 Wed, 04 May 2011 11:28:57 PDT Radio frequency sputter deposition of germanium sulfide thin films can be optimized for surface thickness homogeneity and surface roughness. Optimizing these two components are the first steps of producing memory devices that use the film as a solid electrolyte. The best films were produced using a sputter power of 16 Watts and a pressure of 0.2 mbar. Using these settings a deposition rate of 3.7 nm/min was recorded and the films had a minimum RMS surface roughness of 0.4550 nm.

]]> Steven Livers Minidoka Memorial Hospital Expansion http://scholarworks.boisestate.edu/eng_11/5 http://scholarworks.boisestate.edu/eng_11/5 Tue, 03 May 2011 14:38:38 PDT The Minidoka Memorial Hospital is the main hospital serving Minidoka County. Due to an increase in farming and traffic accidents, the emergency facilities are no longer adequate and require expansion.

]]> Bryanne Calkins et al. Grain Growth Characterization of Ni<sub>2</sub>MnGa http://scholarworks.boisestate.edu/eng_11/4 http://scholarworks.boisestate.edu/eng_11/4 Tue, 03 May 2011 07:46:29 PDT Project Overview:
  • Magnetic shape memory alloys (MSMA) such as Ni2MnGa possess a unique material property that allows them to strain up to 10% in an applied magnetic field.
  • Strain is achieved through the magnetic-field-induced motion of twin boundaries.
  • The highest reported strains have been found in single crystal MSMA but they are difficult and costly to produce.
  • Polycrystalline materials are easier and more cost-efficient to produce than single crystals.
  • Single crystals can be “cut out” from a polycrystalline material if individual grains are large enough.
  • Very large grains may be formed via abnormal grain growth.

]]> Nikki Kucza et al. The Electrodeposition of the Magnetic Shape Memory Alloy Ni-Mn-Ga http://scholarworks.boisestate.edu/eng_11/3 http://scholarworks.boisestate.edu/eng_11/3 Thu, 28 Apr 2011 14:24:26 PDT Shape memory alloy (SMA): Material capable of overcoming large strains to return to a pre-deformed shape via a thermally induced martensitic phase transformation. In magnetic SMA, the shape change can be induced with a magnetic field.

]]> Kenneth McDonald et al. A Prototyping Hardware Platform for ∆Σ ADCs http://scholarworks.boisestate.edu/eng_11/2 http://scholarworks.boisestate.edu/eng_11/2 Wed, 27 Apr 2011 16:19:17 PDT The project involves development of a generic test-bed for prototyping and characterizing Delta-Sigma Analog-to-Digital Converters (ADCs). The ADCs are designed at the Analog Mixed Signal IC (AMS) Laboratory at Boise State. This is a high-speed evaluation board that can be connected into an FPGA board which assists in controlling the ADC chip and assists in capturing blocks of digital data.

]]> Abbas AlAhmed et al. Hop Funnel and Field Emitter Array Interaction http://scholarworks.boisestate.edu/eng_11/1 http://scholarworks.boisestate.edu/eng_11/1 Wed, 27 Apr 2011 13:55:10 PDT Investigate the use of hop funnels with field emitter arrays (FEAs) as a method to improve FEA performance for use in various microwave vacuum electron devices (MVEDs).

]]> Tyler Rowe