Computer Generated Realistic Interstellar Icy Grain Models: Physicochemical Properties and Interaction with NH3 [0.03%]
计算机生成的星际冰粒模型：物理化学性质和与NH3的作用
Aurèle Germain,Lorenzo Tinacci,Stefano Pantaleone et al.
Aurèle Germain et al.
Interstellar grains are composed by a rocky core (usually amorphous silicates) covered by an icy mantle, the most abundant molecule being H2O followed by CO, CO2, NH3, and also radicals in minor quantities. In dense molecular clouds, gas-ph...
Prebiotic Environments with Mg2+ and Thiophilic Metal Ions Increase the Thermal Stability of Cysteine and Non-cysteine Peptides [0.03%]
含Mg2+和亲硫金属离子的类地前生命环境可提高半胱氨酸及非半胱氨酸多肽的热稳定性
Daniele Rossetto,Luca Valer,Noël Yeh Martín et al.
Daniele Rossetto et al.
Wet-dry cycles driven by heating to high temperatures are frequently invoked for the prebiotic synthesis of peptides. Similarly, iron-sulfur clusters are often cited as an example of an ancient catalyst that helped prune early chemical syst...
Exploring Nanogeochemical Environments: New Insights from Single Particle ICP-TOFMS and AF4-ICPMS [0.03%]
单颗粒ICP-Tofms及AF4-ICPMS在纳米地球化学环境研究中的应用
Manuel D Montaño,Chad W Cuss,Haley M Holliday et al.
Manuel D Montaño et al.
Nanogeochemistry is an emerging focus area recognizing the role of nanoparticles in Earth systems. Engineered nanotechnology has cultivated advanced analytical techniques that are also applicable to nanogeochemistry. Single particle inducti...
Measurements of Atmospheric Methane Emissions from Stray Gas Migration: A Case Study from the Marcellus Shale [0.03%]
stray gas迁移的 atmospheric methane排放：Marcellus页岩地区的案例研究
Lauren E Dennis,Scott J Richardson,Natasha Miles et al.
Lauren E Dennis et al.
Understanding emissions of methane from legacy and ongoing shale gas development requires both regional studies that assess the frequency of emissions and case studies that assess causation. We present the first direct measurements of emiss...
A Network of Field-Calibrated Low-Cost Sensor Measurements of PM2.5 in Lomé, Togo, Over One to Two Years [0.03%]
在多哥洛美进行为期一到两年的现场校准低成本PM2.5传感器网络测量的事宜
Garima Raheja,Kokou Sabi,Hèzouwè Sonla et al.
Garima Raheja et al.
Air pollution is a leading cause of global premature mortality and is especially prevalent in many low- and middle-income countries (LMICs). In sub-Saharan Africa, preliminary monitoring networks, satellite retrievals of air-quality-relevan...
Polycyclic Aromatic Hydrocarbons (PAHs) in Interstellar Ices: A Computational Study into How the Ice Matrix Influences the Ionic State of PAH Photoproducts [0.03%]
星际冰中的富勒烯：关于冰基质如何影响PAH光解产物离子态的计算研究
Stephanie Ten Brinck,Celine Nieuwland,Angela van der Werf et al.
Stephanie Ten Brinck et al.
It has been experimentally observed that water-ice-embedded polycyclic aromatic hydrocarbons (PAHs) form radical cations when exposed to vacuum UV irradiation, whereas ammonia-embedded PAHs lead to the formation of radical anions. In this s...
Experimental and Theoretical Constraints on Amino Acid Formation from PAHs in Asteroidal Settings [0.03%]
实验和理论对asteroidal环境中PAH形成氨基酸的限制
Claudia-Corina Giese,Inge Loes Ten Kate,Martijn P A van den Ende et al.
Claudia-Corina Giese et al.
Amino acids and polycyclic aromatic hydrocarbons (PAHs) belong to the range of organic compounds detected in meteorites. In this study, we tested empirically and theoretically if PAHs are precursors for amino acids in carbonaceous chondrite...
Non-energetic Formation of Ethanol via CCH Reaction with Interstellar H2O Ices. A Computational Chemistry Study [0.03%]
星际H2O冰与CCH反应生成乙醇的非放能过程——基于计算化学的研究
Jessica Perrero,Joan Enrique-Romero,Berta Martínez-Bachs et al.
Jessica Perrero et al.
Ethanol (CH3CH2OH) is a relatively common molecule, often found in star-forming regions. Recent studies suggest that it could be a parent molecule of several so-called interstellar complex organic molecules (iCOMs). However, the formation r...
Experimental Annealing of Zircon: Influence of Inclusions on Stability, Intracrystalline Melt Migration, Common Lead Leaching, and Permeability to Fluids [0.03%]
榍石退火实验：包体对热稳定性、晶体内部熔体迁移，共铅溶解和流体渗透性的影响
Irene Morales,José F Molina,Aitor Cambeses et al.
Irene Morales et al.
Zircon derived from crustal rocks can survive dissolution into hot basalts during magma hybridization and rock assimilation if it is shielded as an inclusion phase in early-formed phenocrysts or in minerals from non-disaggregated xenoliths....
Calculating Photoabsorption Cross-Sections for Atmospheric Volatile Organic Compounds [0.03%]
大气挥发性有机化合物的光吸收截面计算
Antonio Prlj,Emanuele Marsili,Lewis Hutton et al.
Antonio Prlj et al.
Characterizing the photochemical reactivity of transient volatile organic compounds (VOCs) in our atmosphere begins with a proper understanding of their abilities to absorb sunlight. Unfortunately, the photoabsorption cross-sections for a l...