@article{mathews_pawlak_grunden_2015, title={Bacterial biodegradation and bioconversion of industrial lignocellulosic streams}, volume={99}, ISSN={0175-7598 1432-0614}, url={http://dx.doi.org/10.1007/S00253-015-6471-Y}, DOI={10.1007/s00253-015-6471-y}, abstractNote={Lignocellulose is a term for plant materials that are composed of matrices of cellulose, hemicellulose, and lignin. Lignocellulose is a renewable feedstock for many industries. Lignocellulosic materials are used for the production of paper, fuels, and chemicals. Typically, industry focuses on transforming the polysaccharides present in lignocellulose into products resulting in the incomplete use of this resource. The materials that are not completely used make up the underutilized streams of materials that contain cellulose, hemicellulose, and lignin. These underutilized streams have potential for conversion into valuable products. Treatment of these lignocellulosic streams with bacteria, which specifically degrade lignocellulose through the action of enzymes, offers a low-energy and low-cost method for biodegradation and bioconversion. This review describes lignocellulosic streams and summarizes different aspects of biological treatments including the bacteria isolated from lignocellulose-containing environments and enzymes which may be used for bioconversion. The chemicals produced during bioconversion can be used for a variety of products including adhesives, plastics, resins, food additives, and petrochemical replacements.}, number={7}, journal={Applied Microbiology and Biotechnology}, publisher={Springer Science and Business Media LLC}, author={Mathews, Stephanie L. and Pawlak, Joel and Grunden, Amy M.}, year={2015}, month={Feb}, pages={2939–2954} }
 @article{pawar_peters_2013, title={Hybrid imaging of damage progress in composites through thermal imaging and embedded sensing}, volume={8693}, ISSN={["1996-756X"]}, DOI={10.1117/12.2010016}, abstractNote={In this paper, we investigate the fusion of imaging data from pulsed phase thermography (PPT) with local temperature data obtained from embedded fiber Bragg grating (FBG) sensors for non-destructive evaluation of composite structures. We use the square pulse heating applied for the PPT imaging as the input thermal wave for both the imaging and sensing processes. In addition, the role of the local microstructure surrounding the FBG on the measured wavelength shift as a function of temperature is derived analytically. Fusing the FBG wavelength response with the PPT data at the corresponding pixel and depth is shown to provide a unique characterization of the local material condition.}, journal={SMART SENSOR PHENOMENA, TECHNOLOGY, NETWORKS, AND SYSTEMS INTEGRATION 2013}, author={Pawar, S. and Peters, K.}, year={2013} }
 @article{pawar_peters_2013, title={Through-the-thickness identification of impact damage in composite laminates through pulsed phase thermography}, volume={24}, ISSN={["1361-6501"]}, DOI={10.1088/0957-0233/24/11/115601}, abstractNote={In this paper we demonstrate through-the-thickness imaging of barely visible impact damage in a two-dimensional woven, carbon fiber epoxy laminate using pulsed phase thermography (PPT). Specifically we calibrate the defect depth with blind frequency for the particular material system using a specimen with simulated defects in the form of polymer foam inclusions. The calibrated depth versus blind frequency relation is then applied to specimens with barely visible impact damage due to low-velocity impacts. The polymer foam reproduces the irregular boundaries and thin nature of the delaminations, but does not reproduce through-the-thickness variations. The extent of delamination at different depths was reconstructed as a function of depth for varying levels of impact energy. The extent of damage imaged using PPT corresponded well with visual observations and microscopy images.}, number={11}, journal={MEASUREMENT SCIENCE AND TECHNOLOGY}, author={Pawar, Sachin S. and Peters, Kara}, year={2013}, month={Nov} }
 @article{pawar_peters_2010, title={Transient infrared thermography for damage evaluation in aerospace composites}, volume={7649}, ISSN={["0277-786X"]}, DOI={10.1117/12.847789}, abstractNote={In this paper we investigate the performance of defect detection using long duration transient thermography for woven composite laminates subjected to low-velocity impacts. Two types of defects are studied: inclusions represented by foam tabs inserted into the laminate during fabrication and barely visible impact damage due to low-velocity impacts. These defects represent the expected damage states that are necessary for inspection during the service life of a woven composite aircraft component. The long duration transient thermography is demonstrated to successfully detect the embedded inclusions, with a dimension to depth ratio detection capability of approximately 3. It is also demonstrated that the detection of low velocity impact damage with the transient thermography is less successful due to uneven emissivity of the surface. Therefore, processing of the image using a self referencing algorithm is performed which improves the damage detection clarity.}, journal={NONDESTRUCTIVE CHARACTERIZATION FOR COMPOSITE MATERIALS, AEROSPACE ENGINEERING, CIVIL INFRASTRUCTURE, AND HOMELAND SECURITY 2010}, author={Pawar, S. and Peters, K.}, year={2010} }