Results 71 to 80 of about 305,424 (300)
Photonic Engineering Enables All‐Passive Upconversion Imaging with Low‐Intensity Near‐Infrared Light
Advanced Functional Materials, EarlyView.A passive upconversion imaging system enables the observation of scenes illuminated by low‐intensity incoherent near‐infrared light from 750 to 930 nm, by converting it into the visible without the use of external power. The upconverter is enabled by triplet–triplet annihilation in a bulk heterojunction, with absorption enhanced by plasmonic resonators
Rabeeya Hamid +13 more
wiley +1 more source
Accurate Indoor Sound Level Measurement on a Low-Power and Low-Cost Wireless Sensor Node
Sensors, 2018 Wireless sensor networks can provide a cheap and flexible infrastructure to support the measurement of noise pollution. However, the processing of the gathered data is challenging to implement on resource-constrained nodes, because each node has its own ...
Vladimir Risojević +4 more
doaj +1 more source
Qualifying and quantifying offshore wind farm-generated noise [PDF]
, 2013 The construction, operation and dismantling of offshore wind farms generate noise both above and under water that may be of environmental concern. The maximum detected sound power level of the above water pin piling noise for example, reached 145 dB(A ...
Botteldooren, D. +6 more
core
Excitation and coherent control of spin qudit modes with sub-MHz spectral resolution
, 2018 Quantum bit or qubit is a two-level system, which builds the foundation for quantum computation, simulation, communication and sensing. Quantum states of higher dimension, i.e., qutrits (D = 3) and especially qudits (D = 4 or higher), offer significant ...
Anisimov, A. N. +9 more
core +2 more sources
Peptide Sequencing With Single Acid Resolution Using a Sub‐Nanometer Diameter Pore
Advanced Functional Materials, EarlyView.To sequence a single molecule of Aβ1−42–sodium dodecyl sulfate (SDS), the aggregate is forced through a sub‐nanopore 0.4 nm in diameter spanning a 4.0 nm thick membrane. The figure is a visual molecular dynamics (VMD) snapshot depicting the translocation of Aβ1−42–SDS through the pore; only the peptide, the SDS, the Na+ (yellow/green) and Cl− (cyan ...
Apurba Paul +8 more
wiley +1 more source
A study of ambient air quality and noise pollution in Nainital city
Environment Conservation Journal, 2004 Nainital is a hill tourist place. It is famous for its natural beauty. Therefore, thousands of tourists from all over India and abroad come to visit this place.
C. S. Bhatt +5 more
doaj +1 more source
Assessment of the level of noise and chemical air pollution in two distinct urban areas
Romanian Journal of Ecology & Environmental Chemistry, 2020 In the paper are presented the results of tests on the evaluation of the level of noise and chemical air pollution in two distinct urban areas: an industrial area and an area characterized by heavy road traffic, with a focus on the novelty elements ...
Mihai Bratu +5 more
doaj +1 more source
The Precision Array for Probing the Epoch of Reionization: 8 Station Results
, 2009 We are developing the Precision Array for Probing the Epoch of Reionization (PAPER) to detect 21cm emission from the early Universe, when the first stars and galaxies were forming.
Aaron R. Parsons +45 more
core +1 more source
Two‐Dimensional Materials as a Multiproperty Sensing Platform
Advanced Functional Materials, EarlyView.Various sensing modalities enabled and/or enhanced by two‐dimensional (2D) materials are reviewed. The domains considered for sensing include: 1) optoelectronics, 2) quantum defects, 3) scanning probe microscopy, 4) nanomechanics, and 5) bio‐ and chemosensing.
Dipankar Jana +11 more
wiley +1 more source
Nigerian Postgraduate Medical JournalBackground: In many industrial dispensaries, audiometric testing is often conducted in small, enclosed rooms, where ambient noise exceeds the maximum permissible ambient noise level (MPANL).
Subroto Shambhu Nandi +3 more
doaj +1 more source