User profiles for Matthew J. Darr

Matthew Darr

Professor, Iowa State University
Verified email at iastate.edu
Cited by 2683

Biomass storage: an update on industrial solutions for baled biomass feedstocks

MJ Darr, A Shah - Biofuels, 2012 - Taylor & Francis
Storage of raw biomass feedstocks is a critical component in a viable biofuels supply chain.
This article focuses on the current knowledge and existing challenges to establishing a …

Physicochemical properties of bio-oil and biochar produced by fast pyrolysis of stored single-pass corn stover and cobs

A Shah, MJ Darr, D Dalluge, D Medic, K Webster… - Bioresource …, 2012 - Elsevier
Short harvest window of corn (Zea mays) stover necessitates its storage before utilization;
however, there is not enough work towards exploring the fast pyrolysis behavior of stored …

A prototype acid spray scrubber for absorbing ammonia emissions from exhaust fans of animal buildings

…, LY Zhao, HM Keener, MJ Darr - Transactions of the …, 2007 - elibrary.asabe.org
Mitigation of ammonia (NH3) emissions from animal production buildings has been a challenge
because of the large volume of low NH3 concentration laden air being released. Among …

Real-time pressure and flow dynamics due to boom section and individual nozzle control on agricultural sprayers

…, TP McDonald, WC Zech, MJ Darr… - Transactions of the …, 2010 - elibrary.asabe.org
Most modern spray controllers when coupled with a differential global positioning system (DGPS)
receiver can provide automatic section or swath (boom section or nozzle) control …

Techno‐economic analysis of a production‐scale torrefaction system for cellulosic biomass upgrading

A Shah, MJ Darr, D Medic, RP Anex… - Biofuels, Bioproducts …, 2012 - Wiley Online Library
Torrefaction of biomass early in the supply chain is one method of enhancing or preservin
biomass quality during storage; reducing storage and transportation costs; attaining uniformity …

Air quality monitoring and on-site computer system for livestock and poultry environment studies

JQ Ni, AJ Heber, MJ Darr, TT Lim… - Transactions of the …, 2009 - elibrary.asabe.org
This article reviews the development of agricultural air quality (AAQ) research on livestock
and poultry environments, summarizes various measurement and control devices and the …

Ammonia concentrations and emission rates at a commercial poultry manure composting facility

…, MJ Darr, HM Keener, AJ Heber, J Ni - Biosystems …, 2016 - Elsevier
Highlights • Composting buildings of manure-belt poultry houses emit significant ammonia (NH
3). • Daily and seasonal means of NH 3 concentration and emission factors were …

[HTML][HTML] Outdoor storage characteristics of single-pass large square corn stover bales in Iowa

A Shah, MJ Darr, K Webster, C Hoffman - Energies, 2011 - mdpi.com
Year-round operation of biorefineries can be possible only if the continuous flow of cellulosic
biomass is guaranteed. If corn (Zea mays) stover is the primary cellulosic biomass, it is …

Development of a GPS herd activity and well-being kit (GPS HAWK) to monitor cattle behavior and the effect of sample interval on travel distance

JD Davis, MJ Darr, H Xin, JD Harmon… - Applied Engineering in …, 2011 - elibrary.asabe.org
As an alternative to commercial GPS tracking collars, a low-cost GPS Herd Activity and Well-being
Kit (GPS HAWK) was developed to monitor locomotion behavior of cattle at a high …

Validation of machine CAN bus J1939 fuel rate accuracy using Nebraska Tractor Test Laboratory fuel rate data

…, RM Hoy, SK Pitla, EE Blankenship, MJ Darr - … and Electronics in …, 2015 - Elsevier
A pilot study concluded that there was a difference (up to a 6.22% error) between data collected
using the machine controller area network (CAN) bus Society of Automotive Engineers (…