Results 31 to 40 of about 19,815 (204)

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

Applied 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, Michael Zürch, Christian Spielmann   +2 more
doaj   +1 more source

Highly Selective Adsorption of Fluorinated Gases by Porous Organic Cages - Effects of Fluorinated Side-Chains. [PDF]

Adv Mater
A systematic study of a series of porous organic cages with perfluorinated alkyl side‐chains of different lengths is presented. The structure‐property relationship of the various cages on gas sorption of highly potent greenhouse gases, such as perfluorocarbons (PFCs), sulfur hexafluoride (SF6), and nitrogen trifluoride (NF3) is investigated.
Tian K, Zhang WS, Othayoth AK, Schuldt MP, Walenszus F, Rominger F, Schröder RR, Elbert SM, Mastalerz M.   +8 more
europepmc   +2 more sources

Validation of a new spectrometer for noninvasive measurement of cardiac output [PDF]

, 2004
Acetylene is a blood-soluble gas and for many years its uptake rate during rebreathing tests has been used to calculate the flow rate of blood through the lungs (normally equal to cardiac output) as well as the volume of lung tissue.
Baum, Marc M., Kumar, Sasi, Moss, John A., Wagner, Peter D.   +3 more
core   +1 more source

Environmental Effects of Electrically-Stressed Sulfur Hexafluoride

EPJ 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., Mergos John A., Dervos Constantine T.   +2 more
doaj   +1 more source

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

Atmospheric 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, M. Rigby, A. J. Manning, S. Park, K. M. Stanley, K. M. Stanley, A. McCulloch, S. Henne, F. Graziosi, M. Maione, J. Arduini, S. Reimann, M. K. Vollmer, J. Mühle, S. O'Doherty, D. Young, P. B. Krummel, P. J. Fraser, R. F. Weiss, P. K. Salameh, C. M. Harth, M.-K. Park, H. Park, T. Arnold, T. Arnold, C. Rennick, L. P. Steele, B. Mitrevski, R. H. J. Wang, R. G. Prinn   +29 more
doaj   +1 more source

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

, 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, Ponomarev, Denis Vladimirovich, Remnev, Gennady Efimovich, Sazonov, Roman Vladimirovich   +3 more
core   +1 more source

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

Sensors, 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, Delson Schramm, Marcelo da Silva, Mila Rocha, Marcelo Sthel, Guilherme Lima, András Miklós   +6 more
doaj   +1 more source

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

, 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), Pardede, T. '. (Tumpal)   +1 more
core  

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

Advanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida, Yanjie Wang, Thais A. Rodrigues, Paulo H. H. Nunes, Vagner R. de Mendonça, Paulo H. E. Falsetti, Leticia V. Savazi, Tao He, Alexandra V. Bardakova, Aida V. Rudakova, Jie Tian, Alexei V. Emeline, Osmando F. Lopes, Antonio Otavio T. Patrocínio, Jia Hong Pan, Caue Ribeiro, Detlef W. Bahnemann   +16 more
wiley   +1 more source

Estimating changes in ocean ventilation from early 1990s CFC-12 and late 2000s SF6 measurements [PDF]

, 2013
Transient tracer measurements can constrain the rates and pathways of ocean ventilation and act as proxies for biogeochemically relevant gases such as CO2 and oxygen.
Bindoff, Bryan, Bullister, Bullister, Darryn W. Waugh, DeVries, Fine, Freing, Gammon, Haine, Hall, John L. Bullister, Law, McDonagh, McPhaden, Mecking, Mecking, Rhein, Sonnerup, Sonnerup, Steinfeldt, Tanhua, Tanhua, Tanhua, Toste Tanhua, Walker, Warner, Waugh, Waugh, Waugh, Zhang, Álvarez   +31 more
core   +1 more source