Results 111 to 120 of about 3,204,513 (373)

Operando X‐ray Spectroscopy Study of Pd and Pd–Au Laterally Condensed Catalysts during Selective Acetylene Hydrogenation: The Role of Carbon

Advanced Materials, EarlyView.
The selective hydrogenation of acetylene over laterally condensed Pd and Pd–Au catalysts (LCCs) was investigated using operando X‐ray absorption and photoelectron spectroscopy in combination with density functional theory. Pd‐LCCs were found to incorporate significantly more carbon into the metal lattice than Pd–Au LCCs, where the carbon uptake governs
Eylül Öztuna, Thomas Götsch, Daniel Cruz, Patrick Zeller, Olga V. Vinogradova, Zehua Li, Christian Rohner, Franz‐Philipp Schmidt, Zahra Gheisari, Alexander Steigert, Martin Muske, Michael Hävecker, Eugen Stotz, Iryna Antonyshyn, Frank Girgsdies, Olaf Timpe, Thomas Lunkenbein, Vanessa J. Bukas, Karsten Reuter, Robert Schlögl, Katarzyna Skorupska, Axel Knop‐Gericke, Beatriz Roldán Cuenya   +22 more
wiley   +1 more source

Microbial redox processes in deep subsurface environments and the potential application of (per)chlorate in oil reservoirs

Frontiers in Microbiology, 2014
The ability of microorganisms to thrive under oxygen-free conditions in subsurface environments relies on the enzymatic reduction of oxidized elements, such as sulfate, ferric iron or CO2, coupled to the oxidation of inorganic or organic compounds.
Martin G Liebensteiner, Nicolas eTsesmetzis, Alfons Johannes Maria Stams, Alfons Johannes Maria Stams, Bartholomeus Petrus Lomans   +4 more
doaj   +1 more source

Multimodal Locomotion in Insect‐Inspired Microrobots: A Review of Strategies for Aerial, Surface, Aquatic, and Interfacial Motion

Advanced Robotics Research, EarlyView.
This review identifies key design considerations for insect‐inspired microrobots capable of multimodal locomotion. To draw inspiration, biological and robotic strategies for moving in air, on water surfaces, and underwater are examined, along with approaches for crossing the air–water interface.
Mija Jovchevska, Kaushik Jayaram, Nicole Xu   +2 more
wiley   +1 more source

Microbiome composition and geochemical characteristics of deep subsurface high-pressure environment, Pyhäsalmi mine Finland

Frontiers in Microbiology, 2015
Pyhäsalmi mine in central Finland provides an excellent opportunity to study microbial and geochemical processes in a deep subsurface crystalline rock environment through near-vertical drill holes that reach to a depth of more than two kilometers below ...
Hanna eMiettinen, Riikka eKietäväinen, Elina eSohlberg, Mikko eNumminen, Lasse eAhonen, Merja eItävaara   +5 more
doaj   +1 more source

Impacts of model calibration on high-latitude land-surface processes: PILPS 2(e) calibration/validation experiments [PDF]

, 2003
In the PILPS 2(e) experiment, the Snow Atmosphere Soil Transfer (SAST) land-surface scheme developed from the Biosphere-Atmosphere Transfer Scheme (BATS) showed difficulty in accurately simulating the patterns and quantities of runoff resulting from ...
Gao, X, Jin, J, Sorooshian, S
core   +1 more source

Aromatic-degrading Sphingomonas isolates from the deep subsurface [PDF]

Applied and Environmental Microbiology, 1995
An obligately aerobic chemoheterotrophic bacterium (strain F199) previously isolated from Southeast Coastal Plain subsurface sediments and shown to degrade toluene, naphthalene, and other aromatic compounds (J. K. Fredrickson, F. J. Brockman, D. J. Workman, S. W. Li, and T. O. Stevens, Appl. Environ. Microbiol.
J K, Fredrickson, D L, Balkwill, G R, Drake, M F, Romine, D B, Ringelberg, D C, White   +5 more
openaire   +2 more sources

TacScope: A Miniaturized Vision‐Based Tactile Sensor for Surgical Applications

Advanced Robotics Research, EarlyView.
TacScope is a compact, vision‐based tactile sensor designed for robot‐assisted surgery. By leveraging a curved elastomer surface with pressure‐sensitive particle redistribution, it captures high‐resolution 3D tactile feedback. TacScope enables accurate tumor detection and shape classification beneath soft tissue phantoms, offering a scalable, low‐cost ...
Md Rakibul Islam Prince, Sheeraz Athar, Pokuang Zhou, Yu She   +3 more
wiley   +1 more source

Reflections On the Anomalous ANITA Events: The Antarctic Subsurface as a Possible Explanation

, 2019
The ANITA balloon experiment was designed to detect radio signals initiated by neutrinos and cosmic ray air showers. These signals are typically discriminated by the polarization and phase inversions of the radio signal.
Kusenko, Alexander, Munneke, Peter Kuipers, Romero-Wolf, Andrew, Schroeder, Dustin M., Shoemaker, Ian M., Siegert, Martin J.   +5 more
core   +1 more source

The role of biofilms in subsurface transport processes [PDF]

, 2010
Landfill and radioactive waste disposal risk assessments focus on contaminant transport and are principally concerned with understanding the movement of gas, water and solutes through engineered barriers and natural groundwater systems.
Bateman, K., Coombs, P., Harrison, H., Milodowski, A.E., Noy, D., Wagner, D., West, J.M.   +6 more
core   +1 more source

In Situ Electrochemical Studies of the Terrestrial Deep Subsurface Biosphere at the Sanford Underground Research Facility, South Dakota, USA

bioRxiv, 2019
The terrestrial deep subsurface is host to significant and diverse microbial populations. However, these microbial populations remain poorly characterized, partially due to the inherent difficulty of sampling, in situ studies, and isolating of the in ...
Yamini Jangir, A. Karbelkar, Nicole M. Beedle, L. Zinke, G. Wanger, C. Anderson, B. Reese, J. Amend, M. El‐Naggar   +8 more
semanticscholar   +1 more source