Results 81 to 90 of about 1,309,533 (402)

España Speleothems in karstic caves beneath paleoglaciers in the Central Pyrenees

Geogaceta
We explore the potential of various caves and karst systems of the Central Pyrenees (Lecherines-Collarada-Monte Perdido-Escuaín-Vignemale-Cotiella-Aneto-Maladeta) that could host speleothems that grew in karstic caves under glaciated areas.
Miguel Bartolomé Úcar, Ánchel Belmonte-Ribas, Reyes Giménez, Mario Bielsa, Gerard Cazenave, Ana Moreno   +5 more
doaj   +1 more source

Sulfur, Chlorine, & Argon Abundances in Planetary Nebulae. I: Observations and Abundances in a Northern Sample

, 2001
This paper is the first of a series specifically studying the abundances of sulfur, chlorine, and argon in Type II planetary nebulae (PNe) in the Galactic disk.
Aldrovandi S. M. V., Barker T., Barker T., Bhatia A. K., Burke V. M., Butler K., Butler K., Cappellaro E., Clegg R., Dennefeld M., Freitas-Pacheco J. A., Galavis M. E., K. B. Kwitter, Kingsburgh R. L., Koppen J. A., Lennon D. J., Maciel W. J., Maciel W. J., Maciel W. J., Maeder A., Marigo P., Mendoza C., Mendoza C., Pagel B. E. J., Peimbert M., Peimbert M., Peimbert M., Pequignot D., R. B. C. Henry, Seaton M. J., Stasinska G., Stasinska G., Stevenson C. C., Storey P. J., Zeippen C. J.   +34 more
core   +1 more source

Cryo‐EM of Rationally Designed Photosystem I Nanoassembly on Graphene Validates Orientation‐Driven Enhancement of Photocatalytic Performance

Advanced Functional Materials, EarlyView.
The first cryo‐EM visualization and quantification of oriented Photosystem I (PSI) on single‐layer graphene is reported. Domain‐specific covalent anchoring of PSI, with the reducing side of the biophotocatalyst toward graphene, promotes three‐fold higher anodic photocurrent generation compared to a randomly physisorbed counterpart. This approach allows
Miriam Izzo, Margot Jacquet, Tomasz Góral, Marcin Strawski, Takayuki Fujiwara, Shin‐ya Miyagishima, Joanna Kargul   +6 more
wiley   +1 more source

On the Budget and Atmospheric Fate of Sulfur Emissions From Large Volcanic Eruptions

Geophysical Research Letters
Today, volcanic sulfur emissions into the atmosphere are measured spectroscopically from the ground, air and space. For eruptions prior to the satellite era, two main sulfur proxies are used, the rock and ice core records, as illustrated by Peccia et al.
Bruno Scaillet, Clive Oppenheimer
doaj   +1 more source

Effects of Sulfur Application on the Quality of Fresh Waxy Maize

Plants
Balanced fertilizer application is crucial for achieving high-yield, high-quality, and efficient maize cultivation. Sulfur (S), considered a secondary nutrient, ranks as the fourth most essential plant nutrient after nitrogen (N), phosphorus (P), and ...
Chenyang Jiang, Yuwen Liang, Yuru Wang, Genji You, Jian Guo, Dalei Lu, Guanghao Li   +6 more
doaj   +1 more source

Determination of Sulfur in Soil by Inductively Coupled Plasma-Optical Emission Spectrometry with Four Acids Open Dissolution

Yankuang ceshi, 2018
At present, sulfur in soil is mainly determined by X-ray Fluorescence Spectrometry and tube furnace combustion iodine methods. The analysis speed of these two methods is slow, and the analysis accuracy is poor for both high and low content samples ...
JIANG Yun-jun, LI Xing, JIANG Hai-lun, ZHANG Ning, HAN Xue, ZHU Yong-xiao   +5 more
doaj   +1 more source

Conductive porous vanadium nitride/graphene composite as chemical anchor of polysulfides for lithium-sulfur batteries

Nature Communications, 2017
Although the rechargeable lithium–sulfur battery is an advanced energy storage system, its practical implementation has been impeded by many issues, in particular the shuttle effect causing rapid capacity fade and low Coulombic efficiency.
Zhenhua Sun, Jingqi Zhang, L. Yin, Guangjian Hu, Ruopian Fang, Hui‐Ming Cheng, Feng Li   +6 more
semanticscholar   +1 more source

Positive‐Tone Nanolithography of Antimony Trisulfide with Femtosecond Laser Wet‐Etching

Advanced Functional Materials, EarlyView.
A butyldithiocarbamic acid (BDCA) etchant is used to fabricate various micro‐ and nanoscale structures on amorphous antimony trisulfide (a‐Sb2S3) thin film via femtosecond laser etching. Numerical analysis and experimental results elucidate the patterning mechanism on gold (reflective) and quartz (transmissive) substrates.
Abhrodeep Dey, Uwe Hübner, Albane Benardais, Xiaofei Wu, Andrea Dellith, Jan Dellith, Torsten Wieduwilt, Henrik Schneidewind, Markus A Schmidt, Virginie Nazabal, Volker Deckert, Jer‐Shing Huang, Wei Wang   +12 more
wiley   +1 more source

Determination of Sulfur in High-sulfur Bauxite by Alkali Fusion-Inductively Coupled Plasma-Optical Emission Spectrometry

Yankuang ceshi, 2017
When Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES) is used to analyze the sulfur content of high-sulfur (S≤8%) bauxite, commonly used acid dissolving and alkali fusion methods cannot oxidize sulfur completely, leading to a false ...
HU Xuan, SHI Lei, ZHANG Wei-hua
doaj   +1 more source

Neon and Sulfur Abundances of Planetary Nebulae in the Magellanic Clouds [PDF]

, 2007
The chemical abundances of neon and sulfur for 25 planetary nebulae (PNe) in the Magellanic Clouds are presented. These abundances have been derived using mainly infrared data from the Spitzer Space Telescope.
Aller L. H., de Graauw T., Feldman U., Fluks M. A., Grevesse N., J. Bernard‐Salas, J. R. Houck, Monk D. J., P. W. Morris, Pena M., S. Gutenkunst, S. R. Pottasch, Zijlstra A. A.   +12 more
core   +4 more sources