Results 91 to 100 of about 377,690 (365)

Carbon emission assessment of tunnel infrastructures: From construction to operation

open access: yesDeep Underground Science and Engineering, EarlyView.
This study develops a lifecycle carbon accounting framework for tunnel infrastructures, covering design, construction, operation, maintenance, and dismantling. Applied to a subsea tunnel case, the framework reveals the carbon emission distribution among four typical tunnel types and highlights potential carbon offset methods for low‐carbon tunnel ...
Luyuan Long   +4 more
wiley   +1 more source

CONFINED ANIMAL PRODUCTION AND MANURE NUTRIENTS [PDF]

open access: yes
Census of agriculture data were used to estimate manure nutrient production and the capacity of cropland and pastureland to assimilate nutrients. Most farms (78 percent for nitrogen and 69 percent for phosphorus) have adequate land on which it is ...
Caswell, Margriet   +5 more
core   +4 more sources

Solar Fuels Via Methane Valorization: Thermochemical Pathways, Unified Metrics, and Techno‐Economic Perspectives

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A first‐of‐its‐kind review benchmarks three solar methane valorization pathways with unified performance metrics for clean fuel production. Meeting global climate targets and sustainable energy demands requires carbon‐neutral fuels and innovative conversion pathways.
Muhammad Abdulmoez   +3 more
wiley   +1 more source

Soil biological quality in short- and long-term field trials with conventional and organic fertility input types [PDF]

open access: yes, 2007
Soils of the DOK trial and three other field trials with manure input were analysed for effects on soil biology. While long-term effects indicate a new steady state at the DOK trial site, differences at the other field trials suggest that fresh manure at
Bruns, Christian   +6 more
core  

Whole-rotation dry matter and nitrogen grain yields from the first course of an organic farming crop rotation experiment [PDF]

open access: yes, 2002
The possibilities for increasing total grain yield in organic cereal production through manipulation of crop rotation design were investigated in a field experiment on different soil types in Denmark from 1997 to 2000.
Askegaard, Margrethe   +3 more
core   +1 more source

By‐product of heparin extraction as a sustainable alternative to enhance the use of nitrogen in agriculture

open access: yesEnvironmental Progress &Sustainable Energy, EarlyView.
Abstract This study evaluates the potential of a new organic fertilizer derived from porcine intestinal mucosa (designated BHE), a by‐product of the heparin extraction process, as a sustainable nitrogen (N) source for agriculture. The work was conducted in two stages: (i) chemical and spectroscopic characterization of BHE compared with poultry litter ...
Aline Zanquetti   +3 more
wiley   +1 more source

Noni (Morinda citrifolia) Seed Oil: Phytochemical Composition, Bioactivity, and Emerging Applications in Food and Health

open access: yesFood Chemistry International, EarlyView.
Noni seed oil from Morinda citrifolia, highlighting its bioactive composition, conventional and green extraction methods, and major stability challenges. Encapsulation strategies improve oxidative stability and bioavailability, along with potential applications in functional foods and cosmetics, and key barriers to large‐scale commercialization ...
Sumidha Palanisamy   +4 more
wiley   +1 more source

THE IMPACT OF PLANT PROTECTION AND FERTILIZATION ON CONTENT OF BIOACTIVE SUBSTANCES IN ORGANIC HOPS

open access: yesActa Scientiarum Polonorum: Hortorum Cultus, 2015
 Hop (Humulus lupulus) is one of the basic raw materials employed in brewing. All hops secondary metabolites exhibit pronounced bioactive effects. Therefore beer is the most important source of hop bioactive compounds in the human diet.
Ewa Solarska, Bożena Sosnowska
doaj  

Linking Farm and Market Models to Analyse the Effects of the EU Nitrate Directive for the Dutch Agricultural Sector [PDF]

open access: yes
This paper presents a modeling system that can be used to analyze the trade off between economy and environment. It takes into account manure policy, farm structure and manure surpluses at farm level as well as the economic effects of manure surpluses at
Helming, John F.M.   +3 more
core   +1 more source

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