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Continuous digester rapid thinning, TAPPI Journal June 2024

ABSTRACT: Carbon steel continuous digesters built after the early 1980s are fully stress relieved, so stress corrosion cracking has been less of a concern. However, these newer digesters were designed to run modified cooking processes that have turned out to be much more corrosive than those running with conventional cooking. This corrosion is mainly associated with softwood digesters and appears to be flow related. Average corrosion rates of 40 mil/year are possible on the exposed shell between the wash and extraction screens. The corrosion patterns are visually distinct from surfaces in the upper digester and below the wash screens. This paper goes into practical detail on where it occurs, the causes, visual identification, inspection planning and results evaluation, and finally, how to mitigate this damage, which consists of applying a corrosion resistant barrier. Some discussion on dealing with general corrosion throughout the digester is included.

Journal articles
Open Access
Editorial: AI in Higher Education: Implications for scholarly publishing, TAPPI Journal September 2026

Even as we grapple with the positive and negative implications of artificial intelligence (AI), it has become increasingly embedded in our personal lives and work, including higher education. A recent snapshot of AI’s impact in this area is the Digital Education Council’s (DEC’s) AI in Higher Education Global Survey 2026. Founded in early 2024 to study how AI and digital transformation impact higher education, learning, and workforce skills, DEC is made up of member institutions throughout the world in academia and vocational learning. It currently has more than 200 members in over 42 countries.

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Open Access
Editorial: Impacts from using recycled pizza boxes in furnish: TAPPI Journal’s runner-up to 2021 Best Research Paper, TAPPI Journal August 2022

ABSTRACT: The runner-up to the 2021 TAPPI Journal Best Research Paper was “Incorporation of post-consumer pizza boxes in the recover Fiber Stream: Impact of grease on finished product quality."

Journal articles
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Open Access
Edge crush testing methods and box compression modeling, TAPPI Journal August 2022

ABSTRACT: While multiple test procedures have been developed to assess the inherent compressive strength of corrugated materials (edge crush test, ECT), limited work has explored the appropriateness of each in the context of box compression modeling. This study incorporates a variety of real-world samples, highlighting the varying challenges different ECT methods face in measuring the intrinsic compressive resistance of combined corrugated board. We examine each of these methods as inputs for different types of models, as well as discuss the propagation of measurement variation through the modeling effort. By highlighting the cases in which a given ECT method no longer proves to be an optimal parameter in box compression strength modeling, we explore how we might better measure this material property.

Journal articles
Magazine articles
Open Access
The winding mechanics of laminate webs, TAPPI Journal February 2020

ABSTRACT: Models that describe the residual stresses due to winding single-layer webs at the end of roll-to-roll manufacturing machines are mature. These models have been used to reduce or avoid defects that are due to winding. Many laminated products exist where two or more webs have been joined to form a thicker composite web. The properties of the web layers provide a unique functionality to the product being manufactured. No laminate winding models exist in the literature. This paper will focus on the development of a laminate winding model and laboratory test verification of the model.

Journal articles
Magazine articles
Open Access
TAPPI Journal 2016 Best Research Paper Award: Mining Big Dat

TAPPI Journal 2016 Best Research Paper Award: Mining Big Data to improve pulping and papermaking operations, TAPPI JOURNAL April 2017

Journal articles
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Open Access
Cellulosic ethanol byproducts as a bulking agent, TAPPI JOURNAL January 2017

Cellulosic ethanol byproducts as a bulking agent, TAPPI JOURNAL January 2017

Journal articles
Magazine articles
Open Access
Pulping and bleaching of Malaysian oil palm empty fruit bunc

Pulping and bleaching of Malaysian oil palm empty fruit bunches, TAPPI JOURNAL June 2017

Journal articles
Magazine articles
Open Access
Importance of specimen preparation for edgewise compressive strength (ECT) testing, TAPPI JOURNAL April 2018

Importance of specimen preparation for edgewise compressive strength (ECT) testing, TAPPI JOURNAL April 2018

Journal articles
Magazine articles
Open Access
Editorial: Douglas Coffin: Paper Physics Guru, TAPPI JOURNAL August 2018

Editorial: Douglas Coffin: Paper Physics Guru, TAPPI JOURNAL August 2018

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