Results 31 to 40 of about 5,416,632 (373)

Effects of initiating anaerobic digestion of layer-hen poultry dung at sub-atmospheric pressure

Revista Ambiente & Água, 2013
This study investigated the effects of initiating anaerobic digestion (AD) of dry layer-hen poultry dung at the sub-atmospheric pressure of -30 cmHg on biodegradation, biogasification, and biomethanation.
Chima C. Ngumah, Jude N. Ogbulie, Justina C. Orji, Ekperechi S. Amadi   +3 more
doaj   +1 more source

Disturbances of Doppler Frequency Shift of Ionospheric Signal and of Telluric Current Caused by Atmospheric Waves from Explosive Eruption of Hunga Tonga Volcano on January 15, 2022

Atmosphere, 2023
After the explosive eruption of the Hunga Tonga volcano on 15 January 2022, disturbances were observed at a distance of about 12,000 km in Northern Tien Shan and regarded variations in the atmospheric pressure, in telluric current, and in the Doppler ...
Nazyf Salikhov, Alexander Shepetov, Galina Pak, Vladimir Saveliev, Serik Nurakynov, Vladimir Ryabov, Valery Zhukov   +6 more
doaj   +1 more source

On some properties of traveling water waves with vorticity [PDF]

, 2008
We prove that for a large class of vorticity functions the crests of any corresponding traveling gravity water wave of finite depth are necessarily points of maximal horizontal velocity. We also show that for waves with nonpositive vorticity the pressure
Varvaruca, Eugen
core   +1 more source

Comprehensive Molecular Characterization of Atmospheric Brown Carbon by High Resolution Mass Spectrometry with Electrospray and Atmospheric Pressure Photoionization.

Analytical Chemistry, 2018
Light-absorbing components of atmospheric organic aerosols, which are collectively termed "brown carbon" (BrC), are ubiquitous in the atmosphere. They affect absorption of solar radiation by aerosols in the atmosphere and human health as some of them ...
Peng Lin, Lauren T. Fleming, S. Nizkorodov, Julia Laskin, A. Laskin   +4 more
semanticscholar   +1 more source

Changes in atmospheric blocking recurrence and their influence on winter temperature regimes in Kazakhstan’s regions during 1960-2020 [PDF]

Central Asian Journal of Water Research
The study aimed to investigate the peculiarities of spatial and temporal variability of atmospheric blocking recurrence and corresponding temperature regime variations over the territory of Kazakhstan during winter months.
Kholoptsev A.V. , Naurozbayeva Zh.K.
doaj   +1 more source

A Station-Based Southern Annular Mode Index from 1884 to 2005 [PDF]

, 2009
Atmospheric pressure observations from the Southern Hemisphere are used to estimate monthly and annually averaged indexes of the southern annular mode (SAM) back to 1884.
Allan, Arblaster, Butler, Cai, Cai, Fyfe, Fyfe, Gillett, Gillett, Gong, Goodwin, Gordon, Hall, Hendon, Hines, Jones, Jones, Kidson, Kushner, Lefebvre, Lenton, Lovenduski, Lovenduski, Marshall, Martin Visbeck, Meredith, Meredith, Miller, Mo, Oke, Schneider, Sen Gupta, Sexton, Silvestri, Thompson, Thompson, Thompson, Verdy, Visbeck   +38 more
core   +1 more source

Multi-scheme chemical ionization inlet (MION) for fast switching of reagent ion chemistry in atmospheric pressure chemical ionization mass spectrometry (CIMS) applications

Atmospheric Measurement Techniques, 2019
. A novel chemical ionization inlet named the Multi-scheme chemical IONization inlet (MION), Karsa Ltd., Helsinki, Finland) capable of fast switching between multiple reagent ion schemes is presented, and its performance is demonstrated by measuring ...
M. Rissanen, J. Mikkilä, Siddharth Iyer, J. Hakala   +3 more
semanticscholar   +1 more source

Photoactive thin silver films by atmospheric pressure CVD [PDF]

, 2008
We report the visible and UV activity of thin silver films. The films are grown using a CVD process employing aqueous-based silver precursors, flame-assisted chemical vapour deposition.
Brook, LA, Sheel, DW, Yates, HM
core   +3 more sources

Foundations of atmospheric pressure non-equilibrium plasmas

, 2017
Non-equilibrium plasmas have been intensively studied over the past century in the context of material processing, environmental remediation, ozone generation, excimer lamps and plasma display panels.

semanticscholar   +1 more source

A review of nanoparticle decharging in atmospheric pressure plasma afterglows

Frontiers in Physics, 2022
Plasma afterglows interacting with dust grains present a dynamic environment in which negatively charged dust grains leaving the plasma bulk experience an environment with plasma conditions transient in space and time.
T.J.A. Staps , T.J.A. Staps 
doaj   +1 more source