Results 31 to 40 of about 19,893 (198)

Beef Steers and Enteric Methane: Reducing Emissions by Managing Forage Diet Fiber Content

open access: yesAnimals, 2023
Understanding the methane (CH4) emissions that are produced by enteric fermentation is one of the main problems to be solved for livestock, due to their GHG effects. These emissions are affected by the quantity and quality of their diets, thus, it is key
Daniel Santander   +7 more
doaj   +1 more source

Extremely Nonlinear Optics Using Shaped Pulses Spectrally Broadened in an Argon- or Sulfur Hexafluoride-Filled Hollow-Core Fiber

open access: yesApplied Sciences, 2015
In this contribution we present a comparison of the performance of spectrally broadened ultrashort pulses using a hollow-core fiber either filled with argon or sulfur hexafluoride (SF6) for demanding pulse-shaping experiments.
Andreas Hoffmann   +2 more
doaj   +1 more source

Environmental Effects of Electrically-Stressed Sulfur Hexafluoride

open access: yesEPJ Web of Conferences, 2012
High Voltage (HV) equipment such as power switches, current or voltage transformers, and flexible HV transmission lines insulated by pressurized SF6 (or SF6/N2 mixtures) offer component compactness, high reliability and low maintenance demands compared ...
Palaiologopoulou Maria D.   +2 more
doaj   +1 more source

The increasing atmospheric burden of the greenhouse gas sulfur hexafluoride (SF6) [PDF]

open access: yesAtmospheric Chemistry and Physics, 2020
We report a 40-year history of SF6 atmospheric mole fractions measured at the Advanced Global Atmospheric Gases Experiment (AGAGE) monitoring sites, combined with archived air samples, to determine emission estimates from 1978 to 2018.
P. G. Simmonds   +29 more
doaj   +1 more source

Rayleigh-Brillouin scattering in SF$_6$ in the kinetic regime

open access: yes, 2016
Rayleigh-Brillouin spectral profiles are measured with a laser-based scatterometry setup for a 90 degrees scattering angle at a high signal-to-noise ratio (r.m.s. noise below 0.15 \% w.r.t. peak intensity) in sulphur-hexafluoride gas for pressures in the
Liang, Kun   +5 more
core   +3 more sources

A Sulfur Hexafluoride Sensor Using Quantum Cascade and CO2 Laser-Based Photoacoustic Spectroscopy

open access: yesSensors, 2010
The increase in greenhouse gas emissions is a serious environmental problem and has stimulated the scientific community to pay attention to the need for detection and monitoring of gases released into the atmosphere.
Helion Vargas   +6 more
doaj   +1 more source

A Systemic Model for Understanding Business Interactions With Biodiversity and Ecosystems

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Biodiversity loss and ecosystem degradation represent critical threats to human well‐being and economic resilience, challenging businesses to understand and manage their interdependence with natural systems. This study develops a systemic framework—the BioModel—that elucidates the reciprocal relationship between businesses, biodiversity, and ...
Lino Cinquini   +2 more
wiley   +1 more source

Studi Karakteristik Tegangan Tembus DC Polaritas Positif pada Gas Nitrogen (N2) [PDF]

open access: yes, 2017
Insulation of Sulfur hexafluoride (SF6) gas, nitrogen (N2) gas and Carbon Dioxide (CO2) gas usually used in circuit breaker. Sulfur hexafluoride (SF6) gas is widely used in high-voltage system.
Murdiya, F. '. (Fri)   +1 more
core  

Propagation of the pulsed electron beam of nanosecond duration in gas composition of high pressure [PDF]

open access: yes, 2015
This paper presents the results of the investigation of the propagation of an electron beam in the high-pressure gas compositions (50, 300, and 760 Torr): sulfur hexafluoride and hydrogen, sulfur hexafluoride and nitrogen, sulfur hexafluoride and argon ...
Kholodnaya, Galina Evgenievna   +3 more
core   +1 more source

Реконструкция Гусиноозерской ГРЭС [PDF]

open access: yes, 1997
Выпускная квалификационная работа содержит 95 страниц, 39 рисунков, 34 таблицы, 6 источников литературы и всего 4 приложения. Ключевые слова: электрическая станция, элегазовый выключатель, турбогенератор, короткое замыкание, асинхронный режим, «Mustang ...
Albajar, C.   +91 more
core   +2 more sources

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