Results 91 to 100 of about 62,073 (218)

Fault-tolerant model predictive control for unmanned surface vehicles

Systems Science & Control Engineering
Unmanned surface vehicles (USVs) require robust control systems capable of adeptly compensating for potential faults to ensure operational safety and successful task execution.
Tahiyatul Asfihani, Ahmad Maulana Syafi'i, Agus Hasan   +2 more
doaj   +1 more source

Interfacial Solvent Molecular Engineering via High‐Safety Dense Separators for High‐Rate Lithium‐Ion Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The dense PPS‐separator prevents thermal runaway by allowing electron transfer through the steel needle during penetration, while the residual electrolyte enables brief ion migration and Joule heating, causing rapid electrolyte vaporization, collapse of the ion transport network, and a sharp drop in ionic conductivity.
Haitao Zhou, Jie Gu, Haiyun Zhou, Yihong Deng, Yafei Shi, Yang Yang, Chen Wang, Hongquan Gao, Jianchun Wu, Libo Wang, Xiangdong Huo   +10 more
wiley   +1 more source

Use of a UAV for Water Sampling to Assist Remote Sensing of Bacterial Flora in Freshwater Environments [PDF]

, 2016
Ground truth data collection in bodies of water traditionally relies on the use of watercraft and manual sampling. The transport and cost associated with the use of this type of equipment, as well as the time required to reach the site of collection, may
Cornell, Dylan, Herman, Maryann, Ontiveros, Fernando   +2 more
core   +1 more source

Design of HAWT Rotor for Non‐Uniform Inflow Conditions: A Theoretical and Experimental Approach for Shear Flow

Energy Science &Engineering, EarlyView.
This paper aims to provide a robust design approach for HAWTs operating in shear flow. This study fills a critical research gap by integrating BEM and vortex theories for blade design in non‐homogeneous inflow conditions. The authors of the paper made an effort to develop and test an experimentally unsophisticated model of a turbine working in shear ...
Agnieszka Dorota Woźniak, Piotr Strzelczyk, Taeseong Kim   +2 more
wiley   +1 more source

Mars surface transportation options [PDF]

As the number of scientific experiments for the surface of Mars grows, the need for effective surface transportation becomes critical. Because of the diversity of the experiments proposed, as well as the desire to explore Mars from the equator to the ...
Alred, John W., Leitner, Jeffrey M.
core   +1 more source

Collaborative Optimization of Electromagnetic Interference Shielding, Adaptive Multi‐Color, and Thermal Camouflage of Basalt Fibers by Temperature‐Induced Gradient Structure Control

Exploration, EarlyView.
Polychromatic BFs with exceptional EMI and thermal shielding were fabricated based on a “plasma activation‐ALD bridging‐chemical plating‐post annealing treatments” gradient functionalization strategy. As prepared, basalt fiber/fabric demonstrates outstanding EMI SE of 53.47 dB and thermal infrared camouflage effect.
Sijie Qiao, Zhicheng Shi, Annan He, Zhiyu Huang, Aixin Tong, Binhao Wang, Jun He, Jiaxin Wang, Wei Ke, Na Yao, Shichao Zhao, Yong Qin, Weilin Xu, Fengxiang Chen   +13 more
wiley   +1 more source

Experimental Design of a Mobile Landing Platform to Assist Aerial Surveys in Fluvial Environments

Applied Sciences, 2018
Sampling aquatic ecosystems is a laborious and expensive task, especially when covering large areas. This can be improved using unmanned aerial vehicles (UAVs) equipped with various remote sensing sensors.
David Borreguero, Omar Velasco, João Valente   +2 more
doaj   +1 more source

Superior through‐plane thermal conductivity in carbon fibers/spherical graphene/epoxy laminated composites for low‐altitude aircrafts

InfoMat, EarlyView.
To address the low through‐plane thermal conductivity (λ⊥) of carbon fiber/epoxy composites, which poses thermal management challenges in the expanding low‐altitude economy, we incorporated spherical thermally reduced graphene (s‐TRG) as a bridging filler. This architectural design achieved a λ⊥ of 2.73 W m–1 K–1 at 10 wt% loading.
Shengyuan Gao, Hua Guo, Yongqiang Guo, Hua Qiu, Wei Gong, Junwei Gu   +5 more
wiley   +1 more source

Data-driven unmanned surface vehicles trajectory tracking adaptive control

Zhongguo Jianchuan Yanjiu
ObjectivesA data-driven trajectory tracking control scheme is proposed for unmanned surface vehicles (USVs) with uncertain parameters. MethodsFirst, the USV kinematics subsystem is processed by the backstepping, and we can obtain the virtual control ...
Weikun WANG, Jiapeng LIU, Baofang WANG, Keqi ZHAO, Jinpeng YU   +4 more
doaj   +1 more source

Project Minerva: A low cost manned Mars mission based on indigenous propellant production [PDF]

Project Minerva is a low-cost manned Mars mission designed to deliver a crew of four to the Martian surface using only two sets of two launches from the Kennedy Space Center.
Beder, David, Bryan, Richard, Bui, Tuyen, Caviezel, Kelly, Cinnamon, Mark, Daggert, Todd, Folkers, Mike, Fornia, Mark, Hamilton, Steve, Hanks, Natasha   +9 more
core   +1 more source