Results 71 to 80 of about 31,420 (299)

An englacial hydrologic system of brine within a cold glacier: Blood Falls, McMurdo Dry Valleys, Antarctica

Journal of Glaciology, 2017
Taylor Glacier hosts an active englacial hydrologic system that feeds Blood Falls, a supraglacial outflow of iron-rich subglacial brine at the terminus, despite mean annual air temperatures of −17°C and limited surface melt.
JESSICA A. BADGELEY, ERIN C. PETTIT, CHRISTINA G. CARR, SLAWEK TULACZYK, JILL A. MIKUCKI, W. BERRY LYONS   +5 more
doaj   +1 more source

Bioinspired Shape‐Memory Hook Fasteners With Programmable Interlocking and Silent Release

Advanced Engineering Materials, EarlyView.
Bioinspired hook fasteners made from epoxy shape‐memory polymers are shown to switch between strong, secure attachment and gentle, silent release when heated. By combining programmable geometry and material response, these adaptive fasteners outperform commercial systems in strength and noise control, enabling new solutions for robotics, medical ...
Maria I. Vallejo Ciro, Manuel J. Carvajal Loaiza, Rahaf Homssi, Vanessa Restrepo   +3 more
wiley   +1 more source

The WISDOM Radar: Unveiling the Subsurface Beneath the ExoMars Rover and Identifying the Best Locations for Drilling [PDF]

, 2017
The search for evidence of past or present life on Mars is the principal objective of the 2020 ESA-Roscosmos ExoMars Rover mission. If such evidence is to be found anywhere, it will most likely be in the subsurface, where organic molecules are shielded ...
Alain Herique, Alice Le Gall, Cathy Quantin-Nataf, Dirk Plettemeier, Elena Pettinelli, Essam Heggy, Gunes-Lasnet S., Hamadi A., Jean-Jacques Berthelier, Jorge L. Vago, Joudrier L., Kao K.C., Le Gall A., Lu Y., Paar G., Pettinelli E., Sophie Dorizon, Stephen Clifford, Stillman D.E., Stillman D.E., Stillman D.E., Susanne Schwenzer, Svein-Erik Hamran, the WISDOM Team, , Tzanis A., Tzanis A., Valérie Ciarletti, Wilkins D.E., Wlodek Kofman, Wolf-Stefan Benedix, Yann Hervé, Yee K.S., Yoshikawa K., Zhang H.   +33 more
core   +3 more sources

Understanding and Optimizing Li Substitution in P2‐Type Sodium Layered Oxides for Sodium‐Ion Batteries

Advanced Functional Materials, EarlyView.
This work explores Li‐substituted P2 layered oxides for Na‐ion batteries by crystallographic and electrochemical studies. The effect of lithium on superstructure orderings, on phase transitions during synthesis and electrochemical cycling and on the interplay of O‐ versus TM‐redox is revealed via various advanced techniques, including semi‐simultaneous 
Mingfeng Xu, Giovanni Gammaitoni, Michael Häfner, Eduardo Villalobos‐Portillo, Carlo Marini, Matteo Bianchini   +5 more
wiley   +1 more source

Age stratigraphy in the East Antarctic Ice Sheet inferred from radio-echo sounding horizons [PDF]

Earth System Science Data, 2019
The East Antarctic Ice Sheet contains a wealth of information that can be extracted from its internal architecture such as distribution of age, past flow features, and surface and basal properties.
A. Winter, D. Steinhage, T. T. Creyts, T. Kleiner, O. Eisen, O. Eisen   +5 more
doaj   +1 more source

Analysis methodology for flow-level evaluation of a hybrid mobile-sensor network [PDF]

, 2011
Our society uses a large diversity of co-existing wired and wireless networks in order to satisfy its communication needs. A cooper- ation between these networks can benefit performance, service availabil- ity and deployment ease, and leads to the ...
Braun, T., Dimitrova, D.C., Heijenk, G.
core   +3 more sources

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

Location of a new ice core site at Talos Dome (East Antarctica)

Annals of Geophysics, 2006
In the frame of glaciology and palaeoclimate research, Talos Dome (72°48lS; 159°06lE), an ice dome on the East Antarctic plateau, represents the new selected site for a new deep ice core drilling. The increasing interest in this region is due to the fact
I. Tabacco, C. Bianchi, A. Zirizzotti, L. Cafarella, S. Urbini, M. Frezzotti   +5 more
doaj   +1 more source

Selective Benzene Capture by Metal‐Organic Frameworks

Advanced Functional Materials, EarlyView.
Metal‐organic frameworks (MOFs) hold significant potential for capturing benzene from air emissions and hydrocarbon mixtures in liquid phases. This capability stems from their precisely engineered structures, versatile chemistries, and diverse binding interactions.
Zongsu Han, Ankit Mondal, Jiatong Huo, Yihao Yang, Hong‐Cai Zhou   +4 more
wiley   +1 more source

Subglacial controls on the flow of Institute Ice Stream, West Antarctica

Annals of Glaciology, 2016
The Institute Ice Stream (IIS) rests on a reverse-sloping bed, extending >150 km upstream into the ~1.8 km deep Robin Subglacial Basin, placing it at the threshold of marine ice-sheet instability. Understanding IIS vulnerability has focused on the effect
Martin J. Siegert, Neil Ross, Jilu Li, Dustin M. Schroeder, David Rippin, David Ashmore, Robert Bingham, Prasad Gogineni   +7 more
doaj   +1 more source