Inventory audit notice: TAPPI Press orders will not be processed from August 21–28 during our fiscal year-end inventory audit. Orders placed during this time will ship starting August 31, in the order received. Normal payment processing also resumes August 31.

Thanks for your patience — this helps us serve our members better.

Search

Use the search bar or filters below to find any TAPPI product or publication.

Showing 3,611–3,620 of 5,470 results (Duration : 0.014 seconds)

Filters

Industry

Topics

Content Type

Publications

Level of Knowledge

Committees

Collections

Journal articles
Open Access
Smelt spout corrosion in a recovery boiler, TAPPI JOURNAL August 2010

Smelt spout corrosion in a recovery boiler, TAPPI JOURNAL August 2010

Journal articles
Magazine articles
Open Access
Editor's Note: Recovery Boiler Insights, TAPPI JOURNAL Febru

Editor's Note: Recovery Boiler Insights, TAPPI JOURNAL February 2010

Journal articles
Open Access
CFD-Based Modeling of Kraft Char Beds â?¢ Part 1: Char Bed Burning Model, TAPPI JOURNAL February 2010

CFD-Based Modeling of Kraft Char Beds • Part 1: Char Bed Burning Model, TAPPI JOURNAL February 2010

Journal articles
Open Access
New Possibilities In Bleaching Wood-Containing Dip: Alternative To Alkaline Peroxide Bleaching, February 2010

New Possibilities In Bleaching Wood-Containing Dip: Alternative To Alkaline Peroxide Bleaching, February 2010

Magazine articles
Open Access
Editor's Note: Bright future for coating at ACFS, TAPPI JOUR

Editor's Note: Bright future for coating at ACFS, TAPPI JOURNAL November 2010

Journal articles
Open Access
A novel approach to quantify spatial coating-layer formation, TAPPI JOURNAL November 2010

A novel approach to quantify spatial coating-layer formation, TAPPI JOURNAL November 2010

Journal articles
Open Access
Experimental and theoretical study of the manifold flow in a curtain coater, TAPPI JOURNAL November 2010

Experimental and theoretical study of the manifold flow in a curtain coater, TAPPI JOURNAL November 2010

Journal articles
Open Access
Nanofibrillated cellulose as a coating agent to improve print quality of synthetic fiber sheets, TAPPI JOURNAL November 2010

Nanofibrillated cellulose as a coating agent to improve print quality of synthetic fiber sheets, TAPPI JOURNAL November 2010

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.

Journal articles
Open Access
Nonlinear modeling of batch digester discharge dynamics with rheology-driven hydraulic transport and drainability coupling, TAPPI Journal September 2026

ABSTRACT: Batch digester blowdown constitutes a strongly nonlinear transient transport process governed by the coupled evolution of pulp consistency, slurry density, hydraulic resistance, liquid inventory, and discharge line dynamics. A control-oriented nonlinear formulation is developed by coupling dry fiber and free liquor mass balances with phase volume reconstruction, consistency-dependent hydraulic resistance, channeling and drainability effects, and a power law head flow relationship derived within a lumped hydraulic inertance framework. A fixed-gain PI controller obtained from local linearization is employed as the conventional benchmark, whereas an integral sliding mode controller (SMC) explicitly compensates the nonlinear time-varying hydraulic structure and bounded disturbances. Both strategies are evaluated under identical actuator constraints and sequential perturbations involving opposing head, hydraulic resistance, channeling, drainability, and dilution. Numerical results demonstrate lower rootmean- square error, integral absolute error, and peak flow-tracking error for the SMC, with rapid recovery toward the prescribed sliding boundary layer and improved robustness to variations in the nonlinear flow exponent n. Cumulative electrical energy and batch-specific specific energy consumption remain comparatively similar, indicating that the principal SMC benefit is enhanced hydraulic regulation rather than substantial batch energy reduction. Specific energy consumption is an established metric for energetic assessment of slurry transport. Model-based hydraulic demand, electrical power, and sliding manifold surfaces further characterize the nonlinear operating domain. The resulting framework provides a computational proof-of-concept for modeling and control of transient batch digester discharge systems.

Inside this Section