Results 161 to 170 of about 15,587 (344)

Effect of ration balancing on methane emission, faecal archaeol concentration and its relation to enteric methane in crossbred cows

, 2014
Manisha Garg, P.L. Sherasia, B. T. Phondba   +2 more
openalex   +2 more sources

Carbon emission assessment of tunnel infrastructures: From construction to operation

Deep 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, Wout Broere, Xuehui Zhang, Tian Xia, Richard de Nijs   +4 more
wiley   +1 more source

Estimación de las emisiones de metano por fermentación entérica de ganado vacuno lechero en una finca en Camagüey, Cuba

Pastos y Forrajes
Objective: To quantify methane emissions from the source of enteric fermentation of cattle on a farm in the Camagüey province, Cuba. Materials and Methods: Emissions of enteric CH4 from 11 milking dairy cows of the Siboney de Cuba (⅝Holstein x ⅜Cebú ...
Yudith Lamothe-Crespo, María del Carmen Guerra-Rojas, Marlon Rodríguez-Abreu, Janet Blanco-Lobaina   +3 more
doaj  

Carbon footprint assessment (TIER 3) of milk production in Colombia: Mitigation strategies and cost-efficiency analysis

Sustainable Chemistry for Climate Action
Having signed the Paris Agreement, Colombia’s commitment to reducing GHG emissions by 51 % by 2030 necessitates sustainable agricultural practices. Livestock production, contributing significantly to the national GDP, is responsible for 55 % of total GHG
Sebastian Camilo Pachon Garcia, Carlos Alberto Zarate Yepes, Luis Alfonso Giraldo, Ruben Higuera, Natalia A. Cano- Londoño   +4 more
doaj   +1 more source

Estimation of methane emission factor for enteric fermentation of growing-finishing Hanwoo steers using the IPCC Tier 2 approach

, 2015
Namchul Jo, Jong-Nam Kim, Seongwon Seo
openalex   +1 more source

Effect of nitrate supplementation on diurnal emission of enteric methane and nitrous oxide

JDS Communications
The objective of this study was to investigate the effect of nitrate supplementation on diurnal enteric methane (CH4) and nitrous oxide (N2O) emissions in dairy cows. Four Danish Holstein dairy cows fitted with ruminal cannulas were used in a 2 × 2 crossover design with 2 periods of 14 d duration.
W. Wang, M. Larsen, M.R. Weisbjerg, A.L.F. Hellwing, P. Lund   +4 more
openaire   +2 more sources

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

ENERGY &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, Amjad Othman, Majid Linjawi, Amro Al‐Qutub   +3 more
wiley   +1 more source

Insights to Industrial Electrocatalytic Sulfide Oxidation: Electrode Fabrication, System Engineering, and High‐Value Product Acquisition

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This review summarizes recent advances in electrocatalytic sulfide oxidation (SOR), focusing on catalyst design strategies, reaction system engineering, and pathways for high‐value product generation. The roles of different reduced sulfur species (S2−, HS−, H2S) under various industrial conditions are highlighted, along with approaches to enhance ...
Zhongyuan Wang, Yinxi Han, Yufei Zhang, Jinghuan Chen, Jiade Wang   +4 more
wiley   +1 more source

84. An Initial Assessment of the SizeR Technology and the Relationships Between Morphometric Measurements and Enteric Methane Emissions from Grazing Heifers [PDF]

Kyle D. Vahlenkamp, J.A. Pennington, Jerry Hudec, G. E. Carstens, Matthew R Beck   +4 more
openalex   +1 more source

Study on Deformation Law of Crossing Layer Drilling Superimposed Floor Roadway

Energy Science &Engineering, EarlyView.
Based on deformation law of crossing layer drilling superimposed floor roadway, low dip angle drilling is particularly susceptible to complications such as borehole blockage and collapse. ABSTRACT Floor extraction roadway crossing layer drilling is a pivotal strategy for gas control in areas prone to coal and gas outbursts.
Xiao Liu, Bo Li, Jiawei Xie, Xiaoming Ni, Shaoren Wei, Chengtao Yang, Yubo Zhang, Haixiao Lin, Wei Zhao, Tao Wang   +9 more
wiley   +1 more source