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Computational Fluid Dynamics Visualization for Unmanned Aerial Systems in Bridge Inspections
Get PDFBridge inspections are an expensive and time-consuming process, varying significantly with a bridge’s style, height, width, and length. Inspections create interruptions that interfere with bridge use, as the examination requires partial or total closure, causing traffic delays. Unmanned aerial system (UAS) use has increased significantly over the past decade, including assistance and coordination during bridge inspections. However, the impact on a UAS from high winds and turbulent airflows induced by a bridge’s structure can decrease flight safety during inspections. Visualization of these hazards is difficult for UAS operators; therefore, a process to estimate the velocity and locations of these hazardous flows was created. The process begins by generating a simplified 3D model using the structural elements of a concrete and steel girder bridge based on the parameters and characteristics of the bridge. The model is then processed by a computational fluid dynamics application that estimates the locations and velocities of the wind flows around the structure. Finally, the results are converted into a standard computer model file type that is either an augmented reality or computer application to display so to assist the UAS operator
Photodynamic treatment of Staphylococcus aureus with non-iron hemin analogs in the presence of hydrogen peroxide
Get PDFBacteria subjected to antiseptic or antibiotic stress often develop tolerance, a trait that can lead to permanent resistance. To determine whether photodynamic agents could be used to counter tolerance, we evaluated three non-iron hemin analogs (M-PpIX; M = Al, Ga, In) as targeted photosensitizers for antimicrobial photodynamic inactivation (aPDI) following exposure to sublethal H2O2. Al-PpIX is an active producer of ROS whereas Ga- and In-PpIX are more efficient at generating singlet oxygen. Al- and Ga-PpIX are highly potent aPDI agents against S. aureus and methicillin-resistant strains (MRSA) with antimicrobial activity (3 log reduction in colony-forming units) at nanomolar concentrations. The aPDI activities of Al- and Ga-PpIX against S. aureus were tested in the presence of 1 mM H2O2 added at different stages of growth. Bacteria exposed to H2O2 during log-phase growth were less susceptible to aPDI but bacteria treated with H2O2 in their postgrowth phase exhibited aPDI hypersensitivity, with no detectable colony growth after treatment with 15 nM Ga-PpIX
Implementation and Assessment of Highway Intrusion Technologies
Get PDFHighway workers face dangers from distracted drivers and challenging work zones, which results in thousands of incidents annually in the U.S. Traditional safety measures, though beneficial, highlight a need for advanced intrusion alert technologies. While many state DOTs are exploring these technologies, research gaps persist regarding their effectiveness in alerting drivers and workers. This study aims to evaluate the efficiency and implications of four commercial intrusion technologies, with a focus on drivers’ and workers’ cognition and response. Results offer practical guidelines and a decision-making tool to assist INDOT in selecting the optimal technology. The ultimate goal is to significantly reduce incidents in highway zones in Indiana and nationwide
Launching Success: Introducing the Start-Up Business Binder
Get PDFDeveloped in collaboration with the Lake County Small Business Development Center (SBDC), the Start-Up Business Binder\u27\u27 is a valuable resource for entry-level entrepreneurs. Our session will unveil the comprehensive resource designed to help libraries guide aspiring entrepreneurs through the crucial first steps of launching a new business.
The Start-Up Business Binder serves as a roadmap for new entrepreneurs, offering practical advice, links to Library resources and collections, and step-by-step instructions on essential aspects of starting a business. From creating a business plan to navigating legal requirements and understanding financial basics, this resource covers all the crucial first steps necessary for success.
What sets this project apart is its openness for other public libraries to adopt and implement in their own communities. By sharing this valuable resource, we aim to extend support and assistance to aspiring entrepreneurs beyond our partnership, fostering economic growth and empowerment on a broader scale
Practical and Ethical Considerations of Using AI Tools in Academic Research
Get PDFThis presentation will touch on several matters that researchers should consider before using AI-powered tools in their research. Can Ai be listed as an author? Can they use AI for peer reviewing tasks? What are the conventions for citing AI content in a paper? This talk will discuss the current state of affairs in each of these areas
Liaison Librarians and the UN Sustainability Development Goals
Get PDFThe United Nations Sustainable Development Goals (SDGs), first adopted in 2012, have worked in tandem with worldwide climate concerns to alter the way we approach the environment, poverty, gender inequality, hunger and worldwide trade.
This short lightning talk will describe the results from a retreat of eight librarians in the sciences and the social sciences on the topic of the UN Sustainability Development Goals. It will present the results of the retreat, including how liaison librarians across the disciplines can view their work from a global lens