Results 31 to 40 of about 100,085 (265)

Micromachined Double‐Membrane Mechanically Tunable Metamaterial for Thermal Infrared Filtering

Advanced Photonics Research, Volume 6, Issue 5, May 2025.
Herein, a mechanically tunable double‐layer plasmonic metamaterial leveraging the extraordinary optical transmission effect observed in subwavelength arrays of openings within thin metal layers is presented. The concept is experimentally validated by integrating the proposed metamaterial structure into an electrostatic parallel‐plate actuator to create
Oleg Bannik, Fedor Kovalev, Mingkai Liu, Michal Zawierta, Dilusha Silva, Lorenzo Faraone, Mariusz Martyniuk, Ilya Shadrivov   +7 more
wiley   +1 more source

Factors impacting spatial distribution of black and odorous water bodies in Hebei

Open Geosciences
Black and odorous water bodies in Hebei Province, China, are continuously attracting governmental attention. These water bodies exhibit a complex spatial distribution with multiple contributing factors; however, existing studies have not fully revealed ...
Li Qiliang, Lu Huixiong, Wang Bing, Zhang En, Xue Qing, Sun Yongbin, Wang Shen, Han Shaofei   +7 more
doaj   +1 more source

Starting Fault Experiment of a Certain Turbo Shaft Engine

MATEC Web of Conferences, 2017
In order to diagnose the starting fail fault of the certain turbo shaft engine which often occurs in daily use, the experiments for the micro pump and the fuel filter were carried out by the method of contrast test.
Xiaodong Xie, Li Benwei, Heng Wu, Fulei Yu   +3 more
doaj   +1 more source

Multiplatform Earth Observation Systems for Monitoring Water Quality in Vulnerable Inland Ecosystems: Maspalomas Water Lagoon

Remote Sensing, 2020
The accurate monitoring of water quality indicators, bathymetry and distribution of benthic habitats in vulnerable ecosystems is key to assessing the effects of climate change, the quality of natural areas and to guide appropriate biodiversity, tourism ...
Francisco Eugenio, Javier Marcello, Javier Martín   +2 more
doaj   +1 more source

Learning Highly Dynamic Skills Transition for Quadruped Jumping Through Constrained Space

Advanced Robotics Research, EarlyView.
A quadruped robot masters dynamic jumps through constrained spaces with animal‐inspired moves and intelligent vision control. This hierarchical learning approach combines imitation of biological agility with real‐time trajectory planning. Although legged animals are capable of performing explosive motions while traversing confined spaces, replicating ...
Zeren Luo, Jiahui Zhang, Yimin Han, Ji Ma, Minghao Lu, Ioannis Havoutis, Peng Lu   +6 more
wiley   +1 more source

A Low Cost Approach to Disturbed Soil Detection Using Low Altitude Digital Imagery from an Unmanned Aerial Vehicle

Drones, 2019
Until recently, clandestine burial investigations relied upon witness statements to determine target search areas of soil and vegetation disturbance.
Elizabeth Parrott, Heather Panter, Joanne Morrissey, Frederic Bezombes   +3 more
doaj   +1 more source

Nonlocomotory Robotic Strategies for Dynamic Rotation Control in Terrestrial Robots: A Review

Advanced Robotics Research, EarlyView.
Terrestrial robots increasingly require rapid body rotation to maintain stability and agility in complex environments. This review shows nonlocomotory rotational control strategies that operate without ground contact, including reaction wheels, tails, bars, limbs, and thrusters.
Y. Liang, J. An, X. Zheng, D. Wang, S. Wang, X. Wang, P. Zhu, J. Pei, S. Li, J. Paripurana, Y. Han, Z. Tang, X. Gan, Q. He, X. Ma   +14 more
wiley   +1 more source

DO-178C-based parameter data item airworthiness certification strategy

Hangkong gongcheng jinzhan
In terms of the airworthiness certification of parameter data item, domestic software manufacturers have some problems, such as unclear certification strategy and insufficient evidence of conformity.
ZHONG Xuxu, TAN Yunfeng, ZHANG Hongtao, LI Yanlin   +3 more
doaj   +1 more source

Prediction of Common Surface Soil Properties Based on Vis-NIR Airborne and Simulated EnMAP Imaging Spectroscopy Data: Prediction Accuracy and Influence of Spatial Resolution

Remote Sensing, 2016
With the upcoming availability of the next generation of high quality orbiting hyperspectral sensors, a major step toward improved regional soil mapping and monitoring and delivery of quantitative soil maps is expected.
Andreas Steinberg, Sabine Chabrillat, Antoine Stevens, Karl Segl, Saskia Foerster   +4 more
doaj   +1 more source

What's new in COVID-19?

APIK Journal of Internal Medicine, 2021
COVID-19 has affected over 57,410,025 people and killed more than 1,368,848 of those affected in 220 countries as on November 20, 2020. Community-acquired coronaviruses are ubiquitous with a male preponderance.
Umar M M A Shareef, Vinod Kumar, Vasantha Kamath   +2 more
doaj   +1 more source