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Articles 1 - 6 of 6
Full-Text Articles in Other Engineering
Impact Profile: Tech 120-Nathan Mentzer, Jason A. Ware
Impact Profile: Tech 120-Nathan Mentzer, Jason A. Ware
IMPACT Profile Directory
This profile highlights the course redesign and transformation of a foundational first-year course in Purdue University’s College of Technology. The faculty involved in this redesign were focused primarily on accomplishing two things with the course transformation. First, faculty recognized that the initial course objectives focused on students learning general skills that are taught throughout the University – career awareness and study skills. The goal with the course redesign was for students to learn skills that are unique to the fields of study within the College and for students to experience a student-centered pragmatic approach to teaching and learning. Second, faculty …
Portable Pneumatic Demonstrator For Stem Education, Joe Chege, Tyler Helmus, John Lumkes
Portable Pneumatic Demonstrator For Stem Education, Joe Chege, Tyler Helmus, John Lumkes
The Summer Undergraduate Research Fellowship (SURF) Symposium
This project involves the development of a compact and portable pneumatic demonstrator. Using two pneumatic actuators and four solenoid valves, we are able to move an arm on both the X and Y-axes; one actuator for each range of motion. The setup also employs an air pump and a tank to maintain pressure for the actuators. On the actuators there is an arm that holds a camera, a stepper motor and an electromagnet. The stepper motor raises and lowers the electromagnet which is used to pick up objects. The camera is used to automatically identify objects for when the demonstrator …
Optimization Of Acid Production In Food Waste Via Anaerobic Respiration, Charles Daniels, Raymond Red Corn, Abigail S. Engelberth Phd.
Optimization Of Acid Production In Food Waste Via Anaerobic Respiration, Charles Daniels, Raymond Red Corn, Abigail S. Engelberth Phd.
The Summer Undergraduate Research Fellowship (SURF) Symposium
According to the Food and Agriculture Organization of the United Nations, one third of all food produced in world is wasted; 1.63 * 109 metric tons of nutrition is lost to transportation, contamination, or neglect every year (FAO 2013). This wasted food, however, could be repurposed as a substrate for microbial conversion into useful chemicals. This research is aimed at finding the optimal conditions for bacterial colonies to generate volatile fatty acids (VFAs): resources that are used as solvents, medicines, and chemical intermediates usually generated from petroleum based resources (Drumright et al., 2000) (Roscher 2000) (Kolt et al., 2007). …
Technology, Science, And Environtmental Impact Of A Novel Cu-Ag Core-Shell Solderless Interconnect System, Milea Joy Kammer
Technology, Science, And Environtmental Impact Of A Novel Cu-Ag Core-Shell Solderless Interconnect System, Milea Joy Kammer
Open Access Dissertations
Tin-based solder is ubiquitous in microelectronics manufacturing and plays a critical role in electronic packaging and attachment. While manufacturers of consumer electronics have made the transition to the use of lead-free solder, there are still a variety of reliability issues associated with these lead-free alternatives, particularly for high performance, high reliability applications. Because of these performance short-comings, researchers are still searching for a material, an alloy, or a unique alternative that can meet the thermal, mechanical, and electrical requirements for conventional reflow solder applications. In an effort to produce a more reliable alternative, Kim et al. proposed the low-temperature (200°C) …
Modeling Preventive Maintenance In Complex Systems, Jessica Rivas
Modeling Preventive Maintenance In Complex Systems, Jessica Rivas
Open Access Theses
This thesis presents an explicit consideration of the impacts of modeling decisions on the resulting maintenance planning. Incomplete data is common in maintenance planning, but is rarely considered explicitly. Robust optimization aims to minimize the impact of uncertainty--here, in contrast, I show how its impact can be explicitly quantified. Doing so allows decision makers to determine whether it is worthwhile to invest in reducing uncertainty about the system or the effect of maintenance. The thesis consists of two parts. Part I uses a case study to show how incomplete data arises and how the data can be used to derive …
Polysemy In Design Review Conversations, Georgi V. Georgiev, Toshiharu Taura
Polysemy In Design Review Conversations, Georgi V. Georgiev, Toshiharu Taura
Design Thinking Research Symposium
This paper examines the role of polysemy, defined as the quality of having multiple meanings, in design review conversations. It examines the polysemy, particularly of nouns, involved in a dataset of design review conversations with reference to design ideas. The purpose is to determine whether polysemy is related to successful development of design ideas and more creative design outcomes. The results show that the polysemy of nouns involved in the conversations of the finally developed, successful, design ideas exceeds in the most cases the average polysemy involved in the conversations pertaining to the unsuccessful design ideas. Furthermore, the polysemy of …