Results 71 to 80 of about 7,997,505 (295)

Aspects of the urban environment in Brazil [PDF]

, 2015
Cities have always played a key role in the international debate concerning environmental issues. Since the 1992 United Nations Conference on Environment and Development (also known as the 1992 Rio “Earth” Summit), environmental questions have become ...
Da Costa Silva, Gabriela
core  

Urban Combat: The Ultimate Extreme Environment [PDF]

, 2003
Urban combat is one of the most extreme environments imaginable. Our paper describes training and simulation research to improve the training of small teams that operate on foot in urban combat and stability operations.
Clark, Bryan R., Knerr, Bruce W., Bruce W. Knerr, Bryan R. Clark, Donald R. Lampton, Lampton, Donald R.   +5 more
core   +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

From Lab to Landscape: Environmental Biohybrid Robotics for Ecological Futures

Advanced Robotics Research, EarlyView.
This Perspective explores environmental biohybrid robotics, integrating living tissues, microorganisms, and insects for operation in real‐world ecosystems. It traces the leap from laboratory experiments to forests, wetlands, and urban environments and discusses key challenges, development pathways, and opportunities for ecological monitoring and ...
Miriam Filippi
wiley   +1 more source

Intelligent Sky Guardians (InSkyGuard): An Aerial Robotic Swarm for Autonomous Detection and Entrapment of Rogue Multirotors

Advanced Robotics Research, EarlyView.
Intelligent Sky Guardians (InSkyGuard) is introduced as a four‐drone swarm that autonomously detects, tracks, and safely captures rogue drones using a coordinated net system. Computer vision and leader–follower control architecture enable synchronized enclosure, while integrated failsafes enhance system reliability. Validated through closed‐environment
Joshua Hastings, Levanya Dewanarayana, Iline Shaju, Haider Al‐Wizni, Sampson Marquis, Weicheng Huang, Pooya Sareh   +6 more
wiley   +1 more source

Productive and Consumptive Emission Characteristics of Energy-related Nitrogen Oxides in Eastern Chinese Cities

Ecosystem Health and Sustainability
Nitrogen oxides (NOx) have long been the focus of air pollution control. Examining the spatial and driving characteristics of NOx emissions at the urban scale and from the supply-chain perspective is critical.
Shuangying Han, Wei Huang, Shenghui Cui, Bing Gao, Yuanxiao Zhai   +4 more
doaj   +1 more source

A Machine Learning-Based Classification System for Urban Built-Up Areas Using Multiple Classifiers and Data Sources

Remote Sensing, 2019
Information about urban built-up areas is important for urban planning and management. However, obtaining accurate information about urban built-up areas is a challenge.
Lang Sun, Lina Tang, Guofan Shao, Quanyi Qiu, Ting Lan, Jinyuan Shao   +5 more
doaj   +1 more source

A Global Methane Observation System to Reduce Uncertainty for Anthropogenic and Natural Sources and Sinks for Detecting and Attributing Climate Feedbacks

Advanced Science, EarlyView.
Conceptual illustration of a Global Ecosystem Methane Observing System (GEM‐OS) integrating satellites, aircraft, atmospheric networks, and ecosystem measurements to quantify methane emissions from anthropogenic and natural sources. The multi‐scale observing framework improves source attribution, reduces uncertainty in regional methane budgets, and ...
P. Ciais, S. Peng, J. Chang, F. Li, Q. Zhu, K. Yuan, G. Hugelius, H. Li, Y. Cai, F. Chevallier, K. Tibrewal, E. A. Kort, K. Arndt, J. Watts, B. Buma, N. Besic, P. I. Palmer, H. Cadillo‐Quiroz, E. Euskirchen, M. J. Gondwe, A. Hoyt, R. Jackson, S. Malone, D. Monteverde, S. Natali, M. Ramonet, C. Rey‐Sanchez, L. B. Sagang, E. A. G. Schuur, R. Vargas, R. Varner, Z. Zhang, B. Poulter   +32 more
wiley   +1 more source

How Spatial Analysis Can Help Enhance Material Stocks and Flows Analysis?

Resources, 2019
Spatial information can be integrated into almost all fields of industrial ecology. Many researchers have shown that spatial proximity affects a variety of behaviors and interactions, and thus matters for materials stocks and flows analysis.
Yupeng Liu, Wei-Qiang Chen, Tao Lin, Lijie Gao   +3 more
doaj   +1 more source

Advancing Energy Efficiency in Smart Windows via Dual‐Responsive Electro‐Thermochromism

Advanced Science, EarlyView.
A durable and stable quasi‐solid‐state electro‐thermal dual‐responsive photothermal regulation device has been employed in advanced energy‐efficient smart windows. The devised device not only incorporates a thermochromic hydrogel characterized by high ionic conductivity, high optical transmittance, and a low LCST, but also comprises an electrochromic ...
Tongyu Chen, Bing Xu, Guolong Zhou, Wenting Wu, Bingkun Huang, Xiaohui Tang, William W. Yu, Pooi See Lee, Wu Zhang, Zhongyang Wang, Jingwei Chen   +10 more
wiley   +1 more source