Results 41 to 50 of about 27,059 (135)

Sampling, Mobility, and Anchoring in Small‐Body Sampling Robots: A Comprehensive Review

open access: yesSmartBot, Volume 2, Issue 2, June 2026.
Small‐body sampling robots are exploration systems that perform contact, sampling, and stable operations on microgravity bodies such as asteroids and comets. The authors review representative robot architectures and key technologies, focusing on the mechanisms, evolution, and coupling of sampling, mobility, and anchoring.
Yurui Shen   +7 more
wiley   +1 more source

Experimental Validation of UAV Search and Detection System in Real Wilderness Environment

open access: yesDrones
Search and rescue (SAR) missions require reliable search methods to locate survivors, especially in challenging environments. Introducing unmanned aerial vehicles (UAVs) can enhance the efficiency of SAR missions while simultaneously increasing the ...
Stella Dumenčić   +3 more
doaj   +1 more source

Self‐Maintained Thermal Charging Cells for the Efficient Harvesting of Waste Heat at Elevated Temperatures

open access: yesENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 3, May 2026.
Thermal charging cells (TCS) face two main challenges that limit their practical applications: 1) Still lacking the systems suitable for operation under higher temperature environments, and 2) there are limitations in the self‐sustaining performance of continuous discharge under temperature differences, which holds critical significance for the real ...
Tingting Meng, Yimin Xuan, Yunjie Xiong
wiley   +1 more source

Cooperative Drone and Water Supply Truck Scheduling for Wildfire Fighting Using Deep Reinforcement Learning

open access: yesDrones
Wildfires often spread rapidly and cause significant casualties and economic losses. Firefighting drones carrying water capsules provide an efficient way for wildfire extinguishing, but their operational capabilities are limited by their payloads.
Lin-Yuan Bai   +3 more
doaj   +1 more source

Anti‐Astrotropik — Outer space, technology and resistance in the tropics

open access: yesSingapore Journal of Tropical Geography, Volume 47, Issue 2, Page 289-316, May 2026.
This paper traces an intellectual and geographical arc of thinking about outer space in the tropics, connecting Peter Redfield's Space in the Tropics: From Convicts to Rockets in French Guiana (2000), Sean T. Mitchell's Constellations of Inequality: Space, Race, and Utopia in Brazil (2017) and Asif Siddiqi's Cosmic Fragments: Dislocation and Discontent
Rob Krawczyk
wiley   +1 more source

MSFFNet: Multiscale Feature Fusion Network for Small Target Detection in Remote Sensing Images

open access: yesCAAI Transactions on Intelligence Technology, Volume 11, Issue 2, Page 592-609, April 2026.
ABSTRACT With the advancement of satellite remote sensing technology, object detection based on high‐resolution remote sensing imagery has emerged as a prominent research focus in the field of computer vision. Although numerous algorithms have been developed for remote sensing image object detection, they still suffer from challenges such as low ...
Hui Zong   +5 more
wiley   +1 more source

A Hybrid Fuzzy Multicriteria Decision-Making Approach for Fighter Aircraft Selection: Application to the Algerian Air Force

open access: yesInternational Journal of Aerospace Engineering
The selection of a fourth-generation fighter aircraft for the Algerian Air Force is a complex multicriteria decision-making (MCDM) process, marked by ambiguity and subjectivity.
Abdelghafour Kaanit   +2 more
doaj   +1 more source

Study on influence of dense medium on impact pressure of detonation waves subjected to contact blasts

open access: yesXibei Gongye Daxue Xuebao
In order to investigate the buffering effect of the different dense medium on the shock waves in the contact blasts, a dimensional analysis method by using the zero-pressure sound speed of dense medium was proposed.
MENG Yuanpei   +7 more
doaj   +1 more source

Programming UAV swarm operational test based on mission reliability

open access: yesXibei Gongye Daxue Xuebao
An UAV swarm is a promising new type of weapon. It is important to carry out its operation trials to check its combat effectiveness. Due to high cost and long time consumption, it is necessary to program the operation trials in advance and formulate ...
WANG Jingyu   +3 more
doaj   +1 more source

A network topology method for cluster communication based on wolf pack algorithm

open access: yesXibei Gongye Daxue Xuebao
The foundation of collaborative control of UAVs is to have a stable and reliable network communication environment, which depends on a high real-time and practical network topology method. This paper proposes a self-organizing topology method for cluster
LI Xuesi   +3 more
doaj   +1 more source

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