Results 101 to 110 of about 33,048 (279)

Highly efficient single-step pretreatment to remove lignin and hemicellulose from softwood

open access: yesBioResources, 2019
The use of lignocellulosic softwood residues as feedstock for the production of bioethanol and other value-added chemical products has been limited by its high recalcitrance.
I. Bernal-Lugo   +5 more
semanticscholar   +1 more source

THE USERS OF LUMBER AND THE US-CANADA SOFTWOOD LUMBER AGREEMENT: AN EVENT STUDY [PDF]

open access: yes
In this paper we analyze whether the Softwood Lumber Agreement between US and Canada imposed significant economic costs on the users of Lumber in the US. To ascertain this impact we use an event study.
Malhotra, Nisha, Gulati, Sumeet
core  

Bio‐Based Polyurethanes for Sustainable and Multifunctional Applications

open access: yesAdvanced Science, Volume 13, Issue 50, 7 September 2026.
Bio‐based polyurethanes prepared from vegetable oils, lignin, and polysaccharides have attracted increasing interest as alternatives to fossil‐derived polyurethanes. This review summarizes recent progress in their chemistry, structural engineering, and advanced applications, highlighting the roles of feedstocks, chain‐segment design, dynamic covalent ...
Xin Li   +6 more
wiley   +1 more source

Reduced chemical kinetics for microscale pyrolysis of softwood and hardwood.

open access: yesBioresource Technology, 2019
This work studies the chemical kinetics of wood pyrolysis by comparing nine reduced reaction schemes against 22 microscale experiments of softwood and hardwood from the literature.
F. Richter, G. Rein
semanticscholar   +1 more source

A Re-examination of Factors Affecting United States Softwood Lumber Imports from Canada [PDF]

open access: yes
This paper examines the effects of the lumber price, the housing starts, and the bilateral exchange rate on U.S. softwood lumber imports from Canada in a cointegration framework.
Baek, Jungho
core  

Soil biological health and yield outcomes from integrating conservation agricultural practices in a corn–soybean system are dependent on environment

open access: yesAgrosystems, Geosciences &Environment, Volume 9, Issue 3, September 2026.
Abstract Research examining the integration of conservation agricultural practices and their medium‐term effects on crop productivity and soil health remain limited within the corn (Zea mays L.)—soybean [Glycine max (L.) Merr.] system of northern US.
Benjamin K. Agyei   +2 more
wiley   +1 more source

Economics of the US - Canada Softwood Lumber Dispute: A Historical Perspective [PDF]

open access: yes
This paper reviews the U.S.-Canada softwood lumber dispute over the past two decades by outlining the key developments and critically appraising the arguments put forward by both countries. It also presents a welfare analysis of lumber trade distortions.
Devadoss, Stephen, Rahman, S.M. Osman
core  

Management of cover crops and soil amendments affect yield outcomes during organic transition

open access: yesAgronomy Journal, Volume 118, Issue 5, September/October 2026.
Abstract This study sought to assess the impact of cover cropping and high rates of soil amendments on crop yield during organic transition. Compost, biochar, or a “50/50” mixture of the two on a C‐equivalent basis were applied at a rate of 8 Mg C ha−1 per varying application regimens, with and without cover crops, at two locations on the North ...
Fred Teasley   +5 more
wiley   +1 more source

Centrifugal fractionation of softwood extracts improves the biorefinery workflow and yields functional emulsifiers

open access: yesGreen Chemistry, 2019
Centrifuging softwood extracts separated the hemicellulose-rich fraction and lignin-rich micro- and nanoparticles. The hemicellulose-rich fraction and lignin-rich nanoparticles formed stable emulsions.
Fabio Valoppi   +7 more
semanticscholar   +1 more source

Canada-US Softwood Lumber Trade Revisited: Examining the Role of Substitution Bias in the Context of a Spatial Price Equilibrium Framework [PDF]

open access: yes
In the last two decades, softwood lumber trade between Canada and the United States has been characterized by numerous trade restrictions. Many studies have attempted to quantify the effects of such sanctions, and in doing so, softwood lumber was modeled
Anthony Mogus   +2 more
core  

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