Alexander O’Brien

ORCID: 0009-0007-0643-9144
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About
Contact & Profiles
Research Areas
  • Color perception and design
  • Categorization, perception, and language
  • Power Line Inspection Robots
  • Image Processing and 3D Reconstruction
  • Fermentation and Sensory Analysis
  • Wine Industry and Tourism
  • Horticultural and Viticultural Research
  • Face Recognition and Perception
  • Advanced Vision and Imaging
  • Online Learning and Analytics
  • Innovative Teaching and Learning Methods
  • Microbial Inactivation Methods
  • Online and Blended Learning
  • Fault Detection and Control Systems
  • Advanced Image and Video Retrieval Techniques
  • Iterative Learning Control Systems
  • 3D Shape Modeling and Analysis
  • Advanced Machining and Optimization Techniques
  • Visual Attention and Saliency Detection
  • Advanced Control Systems Optimization
  • Electrohydrodynamics and Fluid Dynamics
  • Multisensory perception and integration

Sheffield Hallam University
2024

Massachusetts Institute of Technology
2021

University of Wisconsin–La Crosse
2012-2017

Iowa State University
2007

The ascendency of the craft beer movement within brewing industry may be attributed to its commitment unique flavours and innovative styles. Mixed-culture fermentation, celebrated for novel organoleptic profiles, presents a modelling challenge due complex microbial dynamics. This study addresses inherent complexity mixed-culture fermentation while acknowledging condition monitoring limitations breweries, namely sporadic offline sampling rates limited available measurement parameters. A...

10.3390/modelling5010011 article EN cc-by Modelling—International Open Access Journal of Modelling in Engineering Science 2024-02-07

Ohmic heating is a highly efficient method for rapid fluid heating, with applications in fields such as food processing, pharmaceuticals, and chemical engineering. Prior to its industrial application, thorough analysis modeling are crucial ensure safe operations. Therefore, this research focuses on the development validation of transfer function-based model continuous flow ohmic heater (CFOH). Validation metrics include root mean square error (RMSE) absolute percentage (MAPE). The developed...

10.3390/modelling5030040 article EN cc-by Modelling—International Open Access Journal of Modelling in Engineering Science 2024-07-08

An Online Instructor Training program at the University of Wisconsin-La Crosse provides a three-week asynchronous training, focused on design, delivery, and facilitation online courses. OIT trainees from 2010 2011 participated in three-phase evaluation OIT. In Phase I, common conceptions (myths) about education were assessed both pre post II, provided data how influenced implementation new pedagogical strategies their courses, as well face-to-face III, additional in-depth qualitative themes...

10.24059/olj.v16i2.259 article EN Online Learning 2012-03-31

Although LEGO sets have entertained generations of children and adults, the challenge designing customized builds matching complexity real-world or imagined scenes remains too great for average enthusiast. In order to make this feat possible, we implement a system that generates brick model from 2D images. We design novel solution problem uses an octree-structured autoencoder trained on 3D voxelized models obtain feasible latent representation reconstruction, separate network predict are...

10.48550/arxiv.2108.08477 preprint EN other-oa arXiv (Cornell University) 2021-01-01

Biederman's contemporary theory of basic visual object recognition (Recognition-by-Components) is based on structural descriptions objects and presumes 36 primitives (geons) people can discriminate, but there has been no empirical test the actual use these geons to visually distinguish objects. In this study, we tested for in discrimination by comparing performance patterns (when distinguishing varied stimuli) an acquired prosopagnosia patient (LB) healthy control participants. LB's left her...

10.1177/0031512517745412 article EN Perceptual and Motor Skills 2017-12-11
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