Model correlation and damage location for large space truss structures: Secant method development and evaluation

On-orbit testing of a large space structure will be required to complete the certification of any mathematical model for the structure dynamic response. The process of establishing a mathematical model that matches measured structure response is referred to as model correlation. Most model correlation approaches have an identification technique to determine structural characteristics from the measurements of the structure response. This problem is approached with one particular class of identification techniques - matrix adjustment methods - which use measured data to produce an optimal update of the structure property matrix, often the stiffness matrix. New methods were developed for identification to handle problems of the size and complexity expected for large space structures. Further development and refinement of these secant-method identification algorithms were undertaken. Also, evaluation of these techniques is an approach for model correlation and damage location was initiated

The Use of Crowdfunding by Environmental Entrepreneurs: Is it all about cash?

This chapter explores the engagement of environmental ventures in crowdfunding and seeks to address the nested questions of (a) why such ventures choose to engage in crowdfunding and (b) what the unique benefits of crowdfunding are to ventures operating in the renewables space. To address these questions, we draw on a single case study of a French company, tasked with producing renewable energy in the West of France

Quitting the Boss? The Role of Manager Influence Tactics and Employee Emotional Engagement in Voluntary Turnover

Employees commonly cite their managers’ behavior as the primary reason for quitting their jobs. We sought to extend turnover research by investigating whether two commonly used influence tactics by managers affect their employees’ voluntary turnover and whether employees’ emotional engagement and job satisfaction mediate this relationship. We tested our hypotheses using survey data collected at two time points from a sample of financial services directors and objective lagged turnover data. Using multilevel path modeling, we found that managers’ use of pressure and inspirational appeals had opposite effects on employee voluntary turnover and that employees’ emotional engagement was a significant and unique mediating mechanism even when job satisfaction, the traditional attitudinal predictor of turnover, was also included in the path model. Our findings contribute to turnover research by demonstrating a relationship between specific managerial behaviors and employee turnover and shed light on a key mediating mechanism that explains these effects

Measuring intergranular force in granular media

A new method is proposed to measure intergranular forces in granular geomaterial from time-lapsehigh-resolution X-ray computed tomographyimaging using a grain trackingapproachand discrete element metho

Managing Occupancy through Tech Solutions during COVID-19 at Clemson University

This project briefing detailed three occupancy-management technologies, and their accompanying policies and procedures, that were deployed by Clemson Libraries to address the challenges of operating a physical library during the COVID-19 pandemic in 2020. Clemson’s main library, Cooper Library, tracked occupancy through a combination of novel and existing solutions: 1) a home-grown access management system that uses institutional IDs, 2) a real-time entry/exit automatic counter, 3) seat and appointment booking through Springshare. The three-pronged approach allowed for immediate control and oversight, while providing safe and equitable access to the Clemson University community. Each project required unique policy and procedure planning. Of particular note is the collaboration with university central IT to create and customize the access management system, which was also deployed in campus dining halls, bookstore, fitness centers, and showcased on the university’s mobile app. The project enhanced institutional interdisciplinary partnerships and solidified a long-term collaborative network. Additionally, Clemson’s customization of Springshare’s seat booking system provided a unique vantage point into the decision-making process and the adoption of multiple systems for discrete needs, though it required extensive research and customization. The project briefing also covered the implications that the decisions we made could affect future operations of our organization

Lessons Learned From Community-Based Participatory Research in Indian Country

The purpose of this article is to share lessons learned from implementing community-based participatory research (CBPR) in Indian Country that may be generalizable to other medically underserved communities. CBPR is currently included in multiple grant announcements by the National Institute of Health and Centers for Disease Control and Prevention, but information about this methodology vs traditional research methodology is often misleading. This article addresses some common mistakes made by academic research institutes by sharing what we have learned about how CBPR can be implemented in a respectful manner. The majority of tribal Nations prefer, if not mandate, that CBPR be used in most proposed studies involving their communities today