Here we show that raindrop imprints in tuffs of the Ventersdorp Supergroup, South Africa, constrain surface air density 2.7 billion years ago to less than twice modern levels. We interpret the raindrop fossils using experiments in which water droplets of known size fall at terminal velocity ...
three averages, 160 × 157 scan matrix, 3-mm slice thickness, no slice distance, in-plane resolution of 2.0 × 2.0 mm2 (reconstructed into 1.4 × 1.4 mm2) and b = 100, 400 and 800 s/mm2 using SPectral Attenuated Inversion Recovery (SPAIR) for fat suppression. ...
C Cristina,J Tramonte,JJ Sansalone - 《Water Air & Soil Pollution》 被引量: 68发表: 2002年 The effects of aircraft on climate and pollution. Part II: 20-year impacts of exhaust from all commercial aircraft worldwide treated individually at the su... This study examines the 20-year impacts...
Evolution of the anisotropy and ρ ab with H ⊥ and T The evolution of ρc/ρab(T) with H⊥ is shown in Fig. 1c. The anisotropy at the highest T = 20 K is ρc/ρab ~ 6000 and practically independent of H⊥. However, as T is lowered below Tc0, ρc/ρab deve...
Atmospheric deposition to a high-elevation forest at Whiteface Mountain, New York, USA Atmospheric deposition rates have proven difficult to quantify in mountainous settings but must be estimated in order to assess the potential impact of air... ERIC,K.,MILLER,... - 《Tellus Series B-chemical...
Effect of hydrophobic surfactant protein SP-C on binary phospholipid monolayers. Molecular machinery at the air/water interface Fluorescent and modified dark-field microscopies were used to investigate the phase behavior of physiologically relevant lipid/protein monomolecular films ... Peter Krüger and Jo...
RAM temporarily holds data for quick access by the processor. This fast-access space is crucial for the operation of your laptop as it directly interacts with the applications you have open. Whether you're editing a document or browsing the web, RAM is hard at work, ensuring everything runs...
and a molten salt or mixture of salts of the alkali metal, fusible below 180 C., as electrolyte, and a second subcell using an oxygen-containing gas at the cathode, the amalgam of the first subcell as anode, and an aqueous solution of the hydroxide of the alkali metal as electrolyte....
Electrical characterization of oxide TFT Transfer characteristics of TFTs and stress tests were performed in air using a semiconductor device analyzer (B1500A, Keysight). The field-effect mobility in a saturation regime was estimated from the transfer characteristics using the following equation: ID,sa...
This paper introduces the annual energy density concept for electric power generation, which is proposed as an informative metric to capture the impacts on the environmental footprint. Our investigation covers a wide range of sources classified by rated