Results 81 to 90 of about 27,737,305 (283)

A Nighttime Lights Adjusted Impervious Surface Index (NAISI) with Integration of Landsat Imagery and Nighttime Lights Data from International Space Station

International Journal of Applied Earth Observation and Geoinformation, 2019
Abstract Accurate mapping of impervious surface is essential for both urbanization monitoring and micro-ecosystem research. However, the confusion between impervious surface and bare soil is the major concern due to their high spectral similarity in optical imagery.
Xiaolin Chen, Xiuping Jia, Mark Pickering   +2 more
openaire   +2 more sources

Photocatalytic Water Splitting on the Lunar Surface: Prospects for In Situ Resource Utilization

Advanced Materials Interfaces, EarlyView.
Water has been found in craters on the moon nearby locations which are illuminated >80% of the time. Photocatalysis uses energy from sunlight to drive chemical reactions such as water splitting to produce oxygen and hydrogen. It is a scalable technology that requires lighter equipment and utilizes resources available on the moon. ABSTRACT The discovery
Ranjani Kalyan, Thomas D. Small, Gregory F. Metha, Mahmoud Adel Hamza, Thomas J. O'Dea, Yideng Shen, Cameron J. Shearer   +6 more
wiley   +1 more source

Rigid Boron‐Fused Frameworks for Efficient Near‐Infrared Emission and Optical Gain Beyond 900 nm

Advanced Optical Materials, EarlyView.
Multiple‐resonance (MR)‐derived boron‐fused frameworks were integrated into narrow‐gap, long‐range charge‐transfer emitters to reduce structural relaxation and electron‐vibrational coupling. This strategy significantly decreases nonradiative losses, leading to improved near‐infrared (NIR) luminescence efficiency and low‐threshold amplified spontaneous ...
Masashi Mamada, Atsushi Hatanaka, Masahiro Hayakawa, Shintaro Kohata, Chihaya Adachi, Hajime Nakanotani, Takuji Hatakeyama   +6 more
wiley   +1 more source

TRACKING DYNAMIC CHANGES AND MONITORING SOCIOECONOMIC PARAMETERS IN ALGERIA BETWEEN 1993 AND 2012, USING NIGHTTIME LIGHT REMOTE SENSING [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017
This paper is based on using DMSP-OLS data from satellites nighttime light observations to detect both sources of light emissions in Algeria from human settlement areas and gas flaring from oil-extraction and natural gas production.
B. Faouzi, P. Washaya
doaj   +1 more source

Improving the Robustness of Visual Teach‐and‐Repeat Navigation Using Drift Error Correction and Event‐Based Vision for Low‐Light Environments

Advanced Robotics Research, EarlyView.
Visual teach‐and‐repeat (VTR) navigation allows robots to learn and follow routes without building a full metric map. We show that navigation accuracy for VTR can be improved by integrating a topological map with error‐drift correction based on stereo vision.
Fuhai Ling, Ze Huang, Tony J. Prescott
wiley   +1 more source

Outdoor nighttime light exposure (light pollution) is associated with Alzheimer’s disease

Frontiers in Neuroscience
IntroductionAlzheimer’s disease (AD) prevalence has increased in the last century which can be attributed to increased lifespan, but environment is also important.
Robin M. Voigt, Robin M. Voigt, Robin M. Voigt, Bichun Ouyang, Ali Keshavarzian, Ali Keshavarzian, Ali Keshavarzian, Ali Keshavarzian   +7 more
doaj   +1 more source

The Value of Luminosity Data as a Proxy for Economic Statistics [PDF]

One of the pervasive issues in social and environmental research has been to improve the quality of socioeconomic data in developing countries. Because of the shortcoming of standard data sources, the present study examines luminosity (measures of ...
William D. Nordhaus, Xi Chen
core   +2 more sources

The future of nighttime tourism: More than challenges [PDF]

According to the latest data from the World Tourism Organization (UNWTO), an estimated 975 million tourists travelled internationally between January and September 2023, being on track to recover almost 90% of pre-pandemic levels.
Nofre, J., Garcia Ruiz, M.
core   +1 more source

Force–Displacement Characterization of PNIPAM Microactuators

Advanced Robotics Research, EarlyView.
A method to experimentally establish a force–displacement diagram of poly(N‐isopropyl acrylamide) (PNIPAM) microactuators, printed by 2PP, is presented herein. PNIPAM is a hydrogel whose volume and stiffness change with temperature due to the absorption or release of water.
Manon Cassignol, Esra Yalcinkaya, Adam Chafaï, Jérémy Odent, Pierre Lambert   +4 more
wiley   +1 more source

A Novel Method of Evaluating Highway Traffic Prosperity Based on Nighttime Light Remote Sensing

Remote Sensing, 2019
As the backbone and arteries of a comprehensive transportation network, highways play an important role in improving people’s living standards and promoting economic growth.
Ying Chang, Shixin Wang, Yi Zhou, Litao Wang, Futao Wang   +4 more
doaj   +1 more source