Results 71 to 80 of about 80,986 (304)
Drivers of ant composition, richness, and trophic guilds in Neotropical iron ore cavities
International Journal of Speleology, 2019 Subterranean habitats may be considered limiting for animal colonization, especially for ants, due to permanent darkness and mainly because of oligotrophic conditions.
Rodrigo A. Castro-Souza +3 more
doaj +1 more source
Advanced Functional Materials, EarlyView.Nanosecond pulse laser texturing yields superhydrophobic and superhydrophilic AA2024 surfaces. Salt‐spray tests show that periodic superhydrophobic patterns suppress pitting, whereas superhydrophilic textures enhance it, linking laser‐induced morphology, wettability, and oxide chemistry to corrosion resistance.
Lis Geraldine Zschach +8 more
wiley +1 more source
Seismic signatures of carbonate caves affected by near-surface absorptions
, 2015 The near-surface absorption within a low-velocity zone generally has an exponential attenuation effect on seismic waves. But how does this absorption affect seismic signatures of karstic caves in deep carbonate reservoirs? Seismic simulation and analysis
Rao, Y, Wang, Y
core +1 more source
Multiplex Modular Nanorobotic Systems with Catalytic Activity under Magnetic Navigation
Advanced Functional Materials, EarlyView.We present modular nanorobots composed of a magnetic propulsion module and different extension modules carrying functional activities, assembled via DNA base pairing. The system integrates propulsion, optical tracking, enzymatic catalysis, and cell docking in a programmable manner.
Voichita Mihali +7 more
wiley +1 more source
Features of deep cave sediments: their influence on fossil preservation
Estudios Geológicos, 2003 We analyse how physical and chemical deep-cave sediment features preserve the morphological and geochemical characteristics of paleontological materials. Detrital sediment chemistry and clast size are fundamental because they provide a soft, impervious and plastic environment in which fossil remains are transported with minimal erosion.
T. Torres, J. E. Ortiz, R. Cobo
openaire +5 more sources
Soft-tissue specimens from pre-European extinct birds of New Zealand [PDF]
, 2012 We provide the first complete review of soft tissue remains from New Zealand birds that became extinct prior to European settlement (c. AD 1800). These rare specimens allow insights into the anatomy and appearance of the birds that are not attainable ...
Fraser, C +4 more
core +2 more sources
Deep Skull from Niah Cave and the Pleistocene Peopling of Southeast Asia [PDF]
Frontiers in Ecology and Evolution, 2016 The Deep Skull from Niah Cave in Sarawak (Malaysia) is the oldest anatomically modern human recovered from Southeast Asia.For more than 50 years opinions about its relevance to tracing the prehistory of recent people in the region have been in a state of flux.
Darren Curnoe +4 more
openaire +2 more sources
Advanced Functional Materials, EarlyView.Flexible piezoresistive pressure sensors underpin wearable and soft electronics. This review links sensing physics, including contact resistance modulation, quantum tunneling and percolation, to unified materials/structure design. We highlight composite and graded architectures, interfacial/porous engineering, and microstructured 3D conductive networks
Feng Luo +2 more
wiley +1 more source
Effects of Karst Cave on the Stability of Diaphragm Walls During Ultra-Deep Excavation
Advances in Civil EngineeringUltra-deep excavations in karst areas pose a substantial risk due to the presence of unknown karst caves. However, the literatures on deep excavations in karst regions remain limited and lack comprehensive discussion.
Jiaer Mai +6 more
doaj +1 more source
Koonalda Cave, Nullarbor Plain, South Australia – issues in optical and radiometric dating of deep karst caves [PDF]
Geochronometria, 2017 Koonalda Cave is located on the Nullarbor Plain of South Australia and is one of 17 deep karst caves in this region. In 2014, the cave was listed as a National Heritage Place in recognition of its significant archaeological and cultural heritage features.
openaire +1 more source