Results 11 to 20 of about 3,528 (211)

Design and characterization of a smog chamber for studying gas-phase chemical mechanisms and aerosol formation [PDF]

Atmospheric Measurement Techniques, 2014
We describe here characterization of a new state-of-the-art smog chamber facility for studying atmospheric gas-phase and aerosol chemistry. The chamber consists of a 30 m3 fluorinated ethylene propylene (FEP) Teflon film reactor housed in a temperature ...
X. Wang, T. Liu, F. Bernard, X. Ding, S. Wen, Y. Zhang, Z. Zhang, Q. He, S. Lü, J. Chen, S. Saunders, J. Yu   +11 more
doaj   +1 more source

Global Biomonitoring of Perfluorinated Organics

The Scientific World Journal, 2001
The environmental distribution of fluorinated organic compounds (FOCs) has been less well described than the other halogenated hydrocarbons such as chlorinated and brominated compounds.
John P. Giesy, Kurunthachalam Kannan, Paul D. Jones   +2 more
doaj   +1 more source

PROSPECTS FOR USE OF CONDENSED GASES AND SUPERCRITICAL FLUIDS IN PHYTOCHEMICAL PRODUCTION [PDF]

Annals of Mechnikov's Institute, 2017
In the given review article analysis of the literature and patent sources concerning main methods for intensification of extraction processes of medicinal vegetative raw materials – use of condensed gases and supercritical fluids (SCF) on more acceptable
Demyanenko DV, Breusova SV
doaj   +1 more source

Rapid EC50 determination of hydrophobic toxicants in continuous droplet biomicrofluidics

Micro and Nano Engineering, 2019
Droplet-based bioassays are attractive for increasing throughput while minimizing reagent consumption. However, the choice of continuous oil phase within the bioassay can substantially alter assay outcomes when hydrophobic reagents and analytes ...
Raphael Ortiz, David C. Stuckey, Terry W.J. Steele   +2 more
doaj   +1 more source

Refrigerant Options in the Near Future

Journal of Sustainable Development of Energy, Water and Environment Systems, 2019
Regulation EU no. 517/2014 on fluorinated greenhouse gases (the F-gas regulation) and today’s research in the refrigeration and air-conditioning technology and heat pumps are increasingly focused on the use of natural refrigerants such as ammonia ...
Vedran Zanchi, Luka Boban, Vladimir Soldo   +2 more
doaj   +1 more source

RETRACTED: Human and Environmental Dangers Posed by Ongoing Global Tropospheric Aerosolized Particulates for Weather Modification

Frontiers in Public Health, 2016
BackgroundU.S. military perception of nuclear warfare led to countless unethical nuclear experiments performed on unsuspecting individuals without their informed consent.
J. Marvin Herndon
doaj   +1 more source

Assessment of pollutants emissions into the atmosphere due to the fire at the Kalynivka oil depotcaused by a missile strike in March 2022

Геофизический журнал
The study assessed the scale of atmospheric pollution as a result of the fire at the Ka- lynivka oil depot in March 2022 due to missile shelling, which led to the burning of 6124.6 tons of gasoline and diesel fuel.
S.G. Boychenko, V.I. Karamushka, Ie.V. Khlobystov   +2 more
doaj   +1 more source

Les élastomères dans les industries pétrolière et parapétrolière Elastomers in the Oil and Automotive Industries

Oil & Gas Science and Technology, 2006
L'accroissement des contraintes subies par les matériaux utilisés dans les techniques pétrolières et parapétrolières et liées aux températures et pressions élevées ainsi qu'aux agressions chimiques, fait que l'on exige de ces matériaux qu'ils soient de ...
Lesage J.
doaj   +1 more source

Hydrophobic MFI‐Type Zeolites via Alkali‐Cation‐Induced Defect Healing: Implications for Adsorbent and Catalyst Design

Advanced Materials, EarlyView.
Sub‐stoichiometric amounts of Na+ or K+ enhance defect healing during Silicalite‐1 (MFI) and TS‐1 calcination by promoting Si–O–Si annealing and healing framework vacancies. The resulting defect‐free zeolites are more hydrophobic and show improved butanol/water separation and improved activity and selectivity in the epoxidation of 1‐hexene, offering a ...
Christos Kanteler, Pau Ferri, Francisco Javier Escobar‐Bedia, Álvaro Mayoral, Alejandro Vidal‐Moya, Richard Kendra, Chen Lei, Miguel Palomino, Fernando Rey, Lukáš Grajciar, Christopher James Heard, Pedro Serna, Mercedes Boronat, Cristina Martínez, Manuel Moliner   +14 more
wiley   +1 more source

Polymeric Sorbents as Energy‐Efficient Alternative to Cryogenic Distillation for Light Hydrocarbon Purification

Advanced Materials, EarlyView.
The transition from cryogenic distillation to polymeric sorbents for light hydrocarbon purification is crucial for energy and environmental sustainability. The polymeric sorbents are engineered to separate gas mixtures based on their specific properties.
Kelechi Festus, Ankit Mondal, Suman Mandal, Jazmine Aiya D. Marquez, Arnab Ghosh, Aishi Sikdar, Urme Podder, Ahana Sarkar, Qingsheng Wang, Hong‐Cai Zhou   +9 more
wiley   +1 more source