Results 201 to 210 of about 1,117,135 (403)
Product sustainability has moved beyond being an elective preference to becoming a certain necessity. However, earthquakes in different regions, particularly Türkiye–Syria, Afghanistan, and Morocco, have produced a substantial amount of construction ...
Nurullah Bektaş, Maysam Shmlls
doaj +1 more source
DebriSense: Terahertz-based Integrated Sensing and Communications (ISAC) for Debris Detection and Classification in the Internet of Space (IoS) [PDF]
The proliferation of Low Earth Orbit (LEO) satellite constellations has intensified the challenge of space debris management. This paper introduces DebriSense-THz, a novel Terahertz-Enabled Debris Sensing system for LEO satellites that leverages Integrated Sensing and Communications (ISAC) technology.
arxiv
Accumulation and fragmentation of plastic debris in global environments
D. Barnes+3 more
semanticscholar +1 more source
Synthetic cells are engineered herein to respond to an external chemical messenger by the activation of intracellular catalysis. The chemical messenger molecules are catalytically generated by an extracellular enzyme or a mineral surface, whereas the intracellular catalysis emerges via direct enzyme activation or via protein refolding.
Dante G. Andersen+5 more
wiley +1 more source
Dual-Functional FMCW Waveform for Terahertz Space Debris Detection and Inter-Satellite Communications [PDF]
Terahertz (THz) band communication, ranging from 0.1 THz to 10 THz, is envisioned as a key enabling technology for next-generation networks and future applications such as inter-satellite communications and environmental sensing. The surging number of space debris in Low Earth Orbit poses a big threat to orbital infrastructure and the development of ...
arxiv
Internally catalyzed siloxane dynamic chemistry is demonstrated resulting from amides covalently linked through alkyl chains to siloxanes. The alkyl length in the siloxane‐containing monomer tunes the network cross‐link density. Siloxane exchange dynamics are faster with increasing cross‐link density, because associative exchange is second order in ...
Nathan S. Purwanto+5 more
wiley +1 more source
Aim: This study aims to compare and evaluate the amount of debris and smear layer remaining on the root canal walls prepared with TruNatomy and ProTaper Next files using scanning electron microscope (SEM).
Sriram Ravi+5 more
doaj +1 more source
Debris flow and erosion control problems caused by the ash eruptions of Irazu Volcano, Costa Rica [PDF]
Howard Hamilton Waldron
openalex +1 more source
High Performance Space Debris Tracking in Complex Skylight Backgrounds with a Large-Scale Dataset [PDF]
With the rapid development of space exploration, space debris has attracted more attention due to its potential extreme threat, leading to the need for real-time and accurate debris tracking. However, existing methods are mainly based on traditional signal processing, which cannot effectively process the complex background and dense space debris.
arxiv
Recent Radar Observations of the Sub-Centimeter Orbital Debris Environment [PDF]
The NASA Orbital Debris Program Office (ODPO) has conducted radar observations of the orbital debris environment since the early 1990s to provide measurement data that supports orbital debris models and risk mitigation activities in support of NASA ...
Kennedy, Timothy+2 more
core +1 more source