Hydrothermal Processing of Microorganisms: Mass Spectral Signals of Degraded Biosignatures for Life Detection on Icy Moons [0.03%]
微生物的水热处理：生命探测冰冻卫星中生物标志物降解的质量谱信号
Tara L Salter,Jonathan S Watson,J Hunter Waite et al.
Tara L Salter et al.
Life detection missions to the outer solar system are concentrating on the icy moons of Jupiter and Saturn and their inferred subsurface oceans. Access to evidence of habitability, and possibly even life, is facilitated by the ejection of s...
Horizontal and Vertical Transport of Uranium in an Arid Weapon-Tested Ecosystem [0.03%]
干旱放射性核试验生态系统中铀的水平和垂直迁移
Joseph A Kazery,Rui Yang,Li Bao et al.
Joseph A Kazery et al.
Armor-penetrating projectiles and fragments of depleted uranium (DU) have been deposited in soils at weapon-tested sites. Soil samples from these military facilities were analyzed by inductively coupled plasma-optical emission spectroscopy ...
Mobilization of As, Fe, and Mn from Contaminated Sediment in Aerobic and Anaerobic Conditions: Chemical or Microbiological Triggers? [0.03%]
好氧和厌氧条件下去除污染沉积物中砷、铁和锰的机制：化学驱动还是微生物驱动？
Cherie L DeVore,Lucia Rodriguez-Freire,Noelani Villa et al.
Cherie L DeVore et al.
We integrated aqueous chemistry, spectroscopy, and microbiology techniques to identify chemical and microbial processes affecting the release of arsenic (As), iron (Fe), and manganese (Mn) from contaminated sediments exposed to aerobic and ...
Effect of LIBS-Induced Alteration on Subsequent Raman Analysis of Iron Sulfides [0.03%]
LIBS引起的改变对铁硫化物随后拉曼分析的影响
Jitse Alsemgeest,Sergey G Pavlov,Ute Böttger et al.
Jitse Alsemgeest et al.
Mineral alteration is a possible side effect of spectroscopic techniques involving laser ablation, such as laser-induced breakdown spectroscopy (LIBS), and is related to the interaction of the generated plasma and ablated material with samp...
Locating and Quantifying Methane Emissions by Inverse Analysis of Path-Integrated Concentration Data Using a Markov-Chain Monte Carlo Approach [0.03%]
基于马尔可夫链蒙特卡罗逆向分析的甲烷排放量定位及定量方法
Damien Weidmann,Bill Hirst,Matthew Jones et al.
Damien Weidmann et al.
The action to reduce anthropogenic greenhouse gas emissions is severely constrained by the difficulty of locating sources and quantifying their emission rates. Methane emissions by the energy sector are of particular concern. We report resu...
Macon J Abernathy,Michael V Schaefer,Roxana Ramirez et al.
Macon J Abernathy et al.
Anthropogenic emissions of vanadium (V) into terrestrial and aquatic surface systems now match those of geogenic processes, and yet, the geochemistry of vanadium is poorly described in comparison to other comparable contaminants like arseni...
Adsorption of Polycyclic Aromatic Hydrocarbons and C60 onto Forsterite: C-H Bond Activation by the Schottky Vacancy [0.03%]
施密特基空位活化C-H键促进橄榄石表面多环芳香烃及C60吸附
Dario Campisi,Thanja Lamberts,Nelson Y Dzade et al.
Dario Campisi et al.
Understanding how to catalytically break the C-H bond of aromatic molecules, such as polycyclic aromatic hydrocarbons (PAHs), is currently a big challenge and a subject of study in catalysis, astrochemistry, and planetary science. In the la...
Mechanism of Arsenic Partitioning During Sulfidation of As-Sorbed Ferrihydrite Nanoparticles [0.03%]
砷吸附针铁矿纳米颗粒硫化过程中砷的分布机制研究
Naresh Kumar,Vincent Noël,Johannes Besold et al.
Naresh Kumar et al.
Knowledge of how arsenic (As) partitions among various phases in Fe-rich sulfidic environments is critical for understanding the fate and mobility of As in such environments. We studied the reaction of arsenite and arsenate sorbed on ferrih...
Theoretical Distribution of the Ammonia Binding Energy at Interstellar Icy Grains: A New Computational Framework [0.03%]
氨在星际冰颗粒中的结合能的理论分布：一个新的计算框架
Lorenzo Tinacci,Auréle Germain,Stefano Pantaleone et al.
Lorenzo Tinacci et al.
The binding energies (BE) of molecules on the interstellar grains are crucial in the chemical evolution of the interstellar medium (ISM). Both temperature-programmed desorption (TPD) laboratory experiments and quantum chemistry computations...
Geochemical Characterization of the NWA 11273 Lunar Meteorite Using Nondestructive Analytical Techniques: Original, Shocked, and Alteration Mineral Phases [0.03%]
采用非破坏性分析技术表征NWA 11273月球陨石的地球化学特征：原始矿物相、冲击后矿物相和改造后的矿物相
Jennifer Huidobro,Julene Aramendia,Gorka Arana et al.
Jennifer Huidobro et al.
A lunar feldspathic breccia meteorite, the Northwest Africa (NWA) 11273, was analyzed to compensate the lack of scientific data available about its mineralogy and geochemistry. In order to obtain a deeper characterization of the sample, a s...