Results 111 to 120 of about 32,474 (267)

Electron vortices in crystals

, 2011
The propagation of electron beams carrying angular momentum in crystals is studied using a multislice approach for the model system Fe. It is found that the vortex beam is distorted strongly due to elastic scattering.
Löffler, Stefan, Schattschneider, Peter
core   +2 more sources

Mandible composition and properties in two selected praying mantises (Insecta, Mantodea)

The Anatomical Record, EarlyView.
Abstract Insects process their food with their cuticle‐based mouthparts. These feeding structures reflect their diversity and can, in some cases, showcase adaptations in material composition, mechanical properties, and shape to suit their specific dietary preferences.
Malo Roze, Stanislav N. Gorb, Timo Zeimet, Wencke Krings   +3 more
wiley   +1 more source

Optimized thermoelectric properties of Mo_3Sb_(7-x)Te_x with significant phonon scattering by electrons [PDF]

, 2011
Heavily doped compounds Mo_3Sb_(7−x)Te_x (x = 0, 1.0, 1.4, 1.8) were synthesized by solid state reaction and sintered by spark plasma sintering. Both X-ray diffraction and electron probe microanalysis indicated the maximum solubility of Te was around x =
Chen, Lidong, Pei, Yanzhong, Shi, Xiaoya, Snyder, G. Jeffrey   +3 more
core  

High-precision measurement of trace-level Nb, Sn, Ta, and W in rutile using electron probe microanalysis

Solid Earth Sciences
The composition of Nb, Sn, Ta, and W in rutile can serve as a highly sensitive indicator for the mineralization of these elements. This information could also be utilized to discriminate different stages of ore deposition or distinct types of deposits ...
Peng-Li He, Xiao-Long Huang, Le Zhang
doaj   +1 more source

Going from Pt to PGM‐free Catalysts: Effects of Ink Compositions on PEM Water Electrolysis

ChemPhysChem, Volume 26, Issue 6, March 15, 2025.
Optimisation of cathode ink formulations regarding the ratio between catalyst, carbon and binder results in a boost in PEM water electrolysis performance. The optimisation can be transferred from pentlandites to platinum and selenide catalysts, wherein the metal chalcogenides show a stronger performance enhancement.
Janna Wierper, Jannick Hiltrop, Kevinjeorjios Pellumbi, Julia Jökel, Sebastian Sanden, Miłosz Kożusznik, Andrzej Mikuła, Ulf‐Peter Apfel   +7 more
wiley   +1 more source

Comprehensive Analysis of the Degradation Phenomena of Proton Exchange Membrane Water Electrolyzers with Iridium on Antimony Tin Oxide Anodes

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study examines the structural and chemical evolution of low‐loaded Ir/ATO anodes during PEM water electrolysis under realistic conditions. Iridium dissolution is largely suppressed. In the early stages, both ionomer and support degradation are detected. Morphological reorganization occurs at the interface between the anode catalyst layer (ACL) and
Sambal Shashank Ambu, Nikolai Utsch, Tobias Morawietz, Maria Retuerto, Sergio Rojas, Oleg Usoltsev, Miriam Goll, Daniel García Sanchez, Andreas Glüsen, Aldo Saul Gago, Seyed Schwan Hosseiny, Kaspar Andreas Friedrich   +11 more
wiley   +1 more source

In Situ Analysis of Gut Residue of Corophium Volutator (Pallas) by Electron Probe Microanalysis after Exposure to Barytes Spiked Sediments [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 2002
Corophium volutator (Pallas) has been recommended by the paris Commission as one of the standard species for testing chemical used in offshore oil and gas exploration/production.
Tariq M. Ansari, Iain L. Marr, Alison M. Coats   +2 more
doaj  

Evaluation of the Color Changing of Flux‐Synthesized Beryl by Ni Doping Using CIE1976 Color Parameters

European Journal of Inorganic Chemistry, EarlyView.
Comprehensive quantitative analysis of the relationship between NiO concentration and CIE1976 color parameters in Ni‐beryl crystals. Rough beryl contains various transition metal species owing to its geological formation conditions, and their concentrations largely determine the resulting crystal's color—a key physical property that strongly influences
Yusei Sonobe, Takahiko Morisaki, Risa Utumi, Ryosuke Kumamoto, Kazumichi Yanagisawa, Shuji Oishi, Yoshinori Nishiwaki, Kazuya Imamura, Takuya Matsuzaki, Kenji Shimizu, Kazuya Kobiro, Akitaka Ito, Shotaro Hayashi, Keigo Yano, Kogen Horikawa, Daisuke Kozaki   +15 more
wiley   +1 more source

A Reproducible SEM Surface Imaging Protocol for Monitoring Microstructural Changes During Gas–Rock Interactions

Greenhouse Gases: Science and Technology, EarlyView.
ABSTRACT Reliable characterization of mineralogical and textural changes in rock samples is essential for understanding fluid–rock interactions, particularly in experimental studies simulating subsurface conditions. This study presents a reproducible protocol for scanning electron microscopy (SEM) analysis of rock surfaces before and after exposure to ...
Berta Ordóñez‐Casado, Timea Kovács, Sara Roces, Edgar Berrezueta   +3 more
wiley   +1 more source

Assessment of Gold‐Mediated Male Reproductive Dysfunction in Male WISTAR Rats Through Sperm Analysis and Testosterone Measurement

Journal of Applied Toxicology, EarlyView.
ABSTRACT Gold has been used for centuries in both ornamental and medicinal contexts. More recently, gold compounds, containing ions or nanoparticles, have attracted attention for their anti‐inflammatory, anticancer, and diagnostic applications. Therefore, concerns about systemic toxicity and biodistribution have prompted investigations into the ...
Samira Maghraoui, Adrian Florea, Leila Tekaya   +2 more
wiley   +1 more source