Infrared Spectroscopy and Photochemistry of Anthracoronene in Cosmic Water Ice [0.03%]
宇宙水冰中 анthracoronene的红外光谱及光化学性质研究
Julie M Korsmeyer,Alessandra Ricca,Gustavo A Cruz-Diaz et al.
Julie M Korsmeyer et al.
We present a laboratory study of the polycyclic aromatic hydrocarbon (PAH) anthracoronene (AntCor, C36H18) in simulated interstellar ices in order to determine its possible contribution to the broad infrared absorption bands in the 5-8 μm ...
High-temperature inter-mineral potassium isotope fractionation: implications for K-Ca-Ar chronology [0.03%]
高温下矿物间的钾同位素分馏：对钾-钙-氩定年的启示
W Wilson Kuhnel,Stein B Jacobsen,Yonghui Li et al.
W Wilson Kuhnel et al.
Recent advances in high-precision potassium (K) isotopic analysis have found considerable isotopic variation in rock samples of the Earth's continental and oceanic crusts; however, it is still uncertain whether there is any resolvable inter...
Crystal Structure of BaCa(CO3)2 Alstonite Carbonate and Its Phase Stability upon Compression [0.03%]
化合物BaCa(CO3)2的晶体结构及其压缩相变稳定性研究
Raquel Chuliá-Jordán,David Santamaria-Perez,Javier Ruiz-Fuertes et al.
Raquel Chuliá-Jordán et al.
New single-crystal X-ray diffraction experiments and density functional theory (DFT) calculations reveal that the crystal chemistry of the CaO-BaO-CO2 system is more complex than previously thought. We characterized the BaCa(CO3)2 alstonite...
Biogenic Sulfidation of U(VI) and Ferrihydrite Mediated by Sulfate-Reducing Bacteria at Elevated pH [0.03%]
嗜硫酸盐还原细菌在高pH值下促使六价铀和水铁英生物硫化反应
Luke T Townsend,Gina Kuippers,Jonathan R Lloyd et al.
Luke T Townsend et al.
Globally, the need for radioactive waste disposal and contaminated land management is clear. Here, gaining an improved understanding of how biogeochemical processes, such as Fe(III) and sulfate reduction, may control the environmental mobil...
Shuzhen Chen,Luca Artiglia,Fabrizio Orlando et al.
Shuzhen Chen et al.
The reaction of ozone with sea-salt derived bromide is relevant for marine boundary layer atmospheric chemistry. The oxidation of bromide by ozone is enhanced at aqueous interfaces. Ocean surface water and sea spray aerosol are enriched in ...
Ca2+ Ions Decrease Adhesion between Two (104) Calcite Surfaces as Probed by Atomic Force Microscopy [0.03%]
钙离子降低两个(104)文石表面间的黏附力——原子力显微镜的探测
Joanna Dziadkowiec,Matea Ban,Shaghayegh Javadi et al.
Joanna Dziadkowiec et al.
Solution composition-sensitive disjoining pressure acting between the mineral surfaces in fluid-filled granular rocks and materials controls their cohesion, facilitates the transport of dissolved species, and may sustain volume-expanding re...
Sensitive Drone Mapping of Methane Emissions without the Need for Supplementary Ground-Based Measurements [0.03%]
无需额外地面测量的敏感无人机甲烷排放测绘
Magnus Gålfalk,Sören Nilsson Påledal,David Bastviken
Magnus Gålfalk
Methane (CH4) is one of the main greenhouse gas for which sources and sinks are poorly constrained and better capacity of mapping landscape emissions are broadly requested. A key challenge has been comprehensive, accurate, and sensitive emi...
Probing the Water Uptake and Phase State of Individual Sucrose Nanoparticles Using Atomic Force Microscopy [0.03%]
使用原子力显微镜探测单个蔗糖纳米颗粒的吸水性和相态
Chamika K Madawala,Hansol D Lee,Chathuri P Kaluarachchi et al.
Chamika K Madawala et al.
The effects of atmospheric aerosols on the climate and atmosphere of Earth can vary significantly depending upon their properties, including size, morphology, and phase state, all of which are influenced by varying relative humidity (RH) in...
Eduard Y Chekmenev
Eduard Y Chekmenev
A long-overdue hypothesis on the origin of magnetic field of Jovian planets is presented. It is proposed that rapid parahydrogen↔orthohydrogen exchange catalyzed by aerosol clouds of parahydrogen-rich planetary layers renders hyperpolarize...
Estimation of Skin and Ocular Damage Avoided in the United States through Implementation of the Montreal Protocol on Substances that Deplete the Ozone Layer [0.03%]
蒙特利尔议定书减排活动对美国避免的皮肤和眼部损伤估算
Sasha Madronich,Julia M Lee-Taylor,Mark Wagner et al.
Sasha Madronich et al.
Overexposure to ultraviolet (UV) radiation is a threat to human health. It can cause skin cancer and cataracts. Human-made ozone-depleting substances (ODSs) reduce the ozone concentration in the Earth's stratosphere, which acts as a protect...