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Using the Web of Science to Populate Faculty Articles in an Institutional Repository
No full textBackground: Faculty at Central Washington University (CWU) were not depositing and preserving their research articles in the University Institutional Repository (IR), so an alternative method to identify and include faculty scholarship in the IR was developed. Librarians used the Web of Science to discover articles published by the CWU faculty and then deposited them in the IR.
Analysis: Thousands of articles written by CWU faculty were located and deposited. This project increased interaction with the IR from outside the library and the university beyond any expectations.
Conclusion and implications: This was a successful project, but it required a useful interface to locate the metadata and librarians with highly technical skills
LJM RC Baja Vehicle Project Chassis and Suspension
Get PDFAn RC car was designed, analyzed, and manufactured to compete in the ASME RC Baja competition. The focus was to optimize the suspension and chassis components to minimize the weight while maintaining the structural strength of the components which would intern supplement the overall speed and stability of the vehicle. Other components were the responsibility of the teammate Cam Jamison. To complete this there was extensive research done on Traxxas RC cars and what went into making a high-performing vehicle that would compete well in the 3 races that comprise the competition (slalom, sprint, and obstacle course). There were then designs produced using structural stress analysis with methods from statics, mechanics of materials, and mechanical design. Moreover, 3D Computer-Aided Design and Finite Element Analysis was used for more complex loading scenarios to thereby increase or reduce the cross-sectional area where necessary. The manufacturing process of 3D printing was used for the creation of the suspension components as it allowed the use of lightweight yet strong materials and the manufacture of complex component designs that would otherwise be tremendously challenging to produce in a timely and cost-effective manner. The car surpassed its expectations after the optimization of the final assembly. The stiffened suspension allowed for a 10% decrease in the compression of the coils on the 3-foot drop test of the vehicle. Meeting all the requirements allowed the car to complete the slalom test, sprint test, and obstacle test on average 10% faster than predicted
RC Baja: Drivetrain and Steering
Get PDFThe RC Baja competition is a contest where undergraduate mechanical engineering students design, build, and compete against one another. The objective of this competition is to create the most efficient RC car possible. A gear train analysis was done and showed an 8:1 gear ratio would be the most efficient ratio due to the chosen motor having a higher torque output. Also, a stress analysis was done and showed that 2011 T3 aluminum passed the stress and weight criteria. These analyses ensured the RC Baja car was efficient. Most of the parts for the drivetrain and steering subassemblies were machined in the machine shop at CWU while some were 3D printed also at CWU. Once the RC car was designed and built, the efficiency of the RC Baja car is determined by doing numerous tests such as a speed test, drop test, cornering test, and a collision test. The speed test showed expected performance by averaging 20.5 MPH through the three trials over the span of 50 feet. The drop test from 1.5 feet was videoed to determine the deflection of the tie rods. The tie rods showed minimal deflection that was almost too small to measure at 0.01 inches averaged over three trials. The cornering test was done three times to show an average of 5 degrees of yaw through a 60 corner over the span of three trials. This report will cover the designing, manufacturing, and testing of the RC Baja car that will be competed
Associations Between Atherogenic Markers and Hearing Loss: National Health and Nutrition Examination Survey: 2011-2012, 2015-2016
Get PDFImportance Hearing loss (HL) is a major public health problem that has been previously found to be associated with abnormal atherogenic markers.
Objective To investigate the associations between such atherogenic markers and the degree of HL using continuous NHANES data from cycle years 2011-2012 and 2015-2016.
Design, Study, and Participants This observational study used data from two National Health and Nutrition Examination Survey (NHANES) cycle years 2011-2012 and 2015-2016. NHANES continuously conducts data collection via home interviews and physical exams completed in their Mobile Examination Centers. NHANES participants ages 20-69 who partook in audiometry, anthropometric and laboratory testing were included. Data was analyzed from 2011-2012 and 2015-2016 cycle years.
Exposures Substantial hearing loss was defined as a HL degree of moderate (41-55dB) or higher at any frequency.
Main Outcomes and Measures Risk of hypercholesterolemia was defined as ≥ 240 mg/dL, hypoalphalipoproteinemia or low levels of high-density lipoprotein cholesterol as \u3c 40 mg/dL for males and \u3c 50 mg/dL for females, elevated low-density lipoprotein cholesterol as ≥ 160 mg/dL, hypertriglyceridemia was defined as ≥ 175 mg/dL, elevated levels of Apolipoprotein B as ≥ 130 mg/dL and elevated non-high-density lipoprotein cholesterol as ≥ 190 mg/dL. Associations between abnormal atherogenic markers and substantial HL were determined in adjusted multivariate logistic regression models, t-tests and chi-square analysis.
Results Among 8955 participants there were significant associations between gender, age, BMI and race/ethnicity and substantial hearing loss (p
Conclusions and Relevance This study’s results showed no association between atherosclerosis markers and degree of hearing loss. However, due to conflicting findings of several studies on this topic, further research should be done to determine if lipid markers can affect hearing loss
Comparison of Lichen Growth Between Basalt Boulders and Talus
No full textMultiple species of lichen occupy different environments at Frenchman Coulee near Quincy Washington. Lichen is a composite organism arising from symbiotic relationship between an alga and fungus. The purpose of our research was to determine whether lichen was more abundant on talus slopes or boulders. The boulders are large, immobile rocks on the valley floor, while the talus is smaller, loose basalt rocks on the hillslope. We hypothesized that there would be a greater percent coverage of lichen on the boulders than the talus. The boulders are not easily moved, possibly providing the lichen a greater chance to grow undisturbed, while the talus is made up of smaller rocks that might be more easily disturbed. During two trips to Frenchman Coulee on February 21 and 27, 2022, we placed 1-meter square quadrat frames against the west-facing side of basalt boulders and the slopes of the adjacent talus. We measured 40 replicas, 20 of the talus and 20 of the adjacent boulders. Photographs of each plot were analyzed with computer software that placed gridlines over the photos. Each intersection of lines that contacted lichen was counted to calculate the percent coverage of lichen in each quadrat. We found that there was no significant difference between the amount of lichen on the boulders compared with the talus. The results indicate that either the more frequent movement of the talus does not impact the lichens\u27 ability to grow on the rock, or the talus is more stable than we initially proposed.
College of the Sciences Presentation Award Winner
Science Building Dedication
No full textA group of people at the Science Building Dedication in 1947.https://digitalcommons.cwu.edu/john_foster_photos/2583/thumbnail.jp
Science Telescope 1955
No full textThree men working on a telescope in 1955.https://digitalcommons.cwu.edu/john_foster_photos/2602/thumbnail.jp
George Beck
No full textGeorge Beck with another man looking at rocks.https://digitalcommons.cwu.edu/john_foster_photos/2599/thumbnail.jp
Science Building Dedication
No full textFour men posing with a rack of keys at the Science Building Dedication in 1947.https://digitalcommons.cwu.edu/john_foster_photos/2590/thumbnail.jp
George Beck
No full textGeorge Beck with another man looking at rocks.https://digitalcommons.cwu.edu/john_foster_photos/2605/thumbnail.jp