Results 41 to 50 of about 97,229 (252)
Transformation and loss of excretal nitrogen under winter management systems : a thesis submitted in partial fulfilment of the requirements for the degree of Master of Science in Soil Science at Massey University, Palmerston North, New Zealand [PDF]
, 2007 Excreta from cattle animals contain large amounts of nutrients, particularly nitrogen, which could lead to substantial gaseous losses of ammonia and nitrous oxide to the atmosphere, as well as nitrogen leaching.
Qui, Weiwen
core
Organosolv pretreatment of Sitka spruce wood: conversion of hemicelluloses to ethyl glycosides [PDF]
, 2014 A range of organosolv pretreatments, using ethanol:water mixtures with dilute sulphuric acid, were applied to Sitka spruce sawdust with the aim of generating useful co-products as well as improving saccharification yield.
Bouxin, Florent P. +2 more
core +1 more source
AIChE Journal, EarlyView.Abstract Chemical‐looping gasification (CLG) offers a promising route for renewable biomass valorization, yet conventional oxygen carrier regeneration with O₂/H₂O is energy‐intensive and often produces low‐quality syngas. Here, we develop an inverse ZrO2/Co3O4 oxygen carrier that enables selective biochar oxidation and efficient lattice‐oxygen transfer
Junling Gao +9 more
wiley +1 more source
MODIFIED SAWDUST CONCRETE [PDF]
Statyba, 2000 Summary Wood-cement materials are widely produced and applied in many developed countries. In this case special prepared wood aggregates are employed. Wood sawdust practically is not employed. Extracts, present in wood, slow down the cement hydration. The influence of mineral additives on this process was determined. The efficiency of mineral additives
A. Kantautas, G. Vaickelionis
openaire +1 more source
American Journal of Industrial Medicine, EarlyView.ABSTRACT Background We investigated associations of self‐reported and job exposure matrix (JEM) assigned civilian occupational exposure to vapors, gas, dust, or fumes (VGDF) with respiratory symptoms among previously deployed US Veterans. Methods An interviewer‐administered questionnaire ascertained self‐reported civilian occupational VGDF exposure.
Sahra Mohazzab‐Hosseinian +14 more
wiley +1 more source
Preparation and property study of sawdust-modified cement mortar
Frontiers in MaterialsSawdust, a solid waste generated during stone processing, poses a serious threat to the environment with its untreated accumulation. This paper first analyzes the chemical composition and physical properties of sawdust, and discusses its mechanism of ...
Yu Cheng +4 more
doaj +1 more source
Characteristics and synergistic effects of co-pyrolysis of yinning coal and poplar sawdust [PDF]
Chemical Industry and Chemical Engineering Quarterly, 2016 Co-process of biomass and coal is perceived as a way to enhance the energy utilization by virtue of the integrated and interactive effects between different types of carbonaceous fuels.
Zhu Shenghua +4 more
doaj +1 more source
HortScience, 2021 A 4-year trial was established in Oct. 2016 in western Oregon to evaluate the effects of various in-row mulch treatments on yield, fruit quality, and costs of installation and maintenance during establishment of northern highbush blueberry (Vaccinium ...
Bernadine C. Strik, Amanda J. Davis
doaj +1 more source
Dairy calves' preference for rearing substrate [PDF]
, 2014 Rearing substrate is an important component of the pre-weaning environment of dairy calves. Traditional substrate types, such as sawdust, are becoming difficult and/or expensive for farmers to obtain in New Zealand. Therefore, there is a need to evaluate
Worth, Gemma
core +1 more source
Heat absorption properties of ground material for solar chimney power plants [PDF]
, 2016 One of the major challenges to the widespread application of the solar chimney power plant is its low-power conversion efficiency because of the three technological processes involved.
Al-Azawiey, S. S., Hassan, S. B.
core +1 more source