Results 121 to 130 of about 20,641 (257)
IEEE AccessReduced weight, size, and maintenance cost, as well as quieter and eco-friendly operation of electro-mechanical actuators (EMA), gained profound attention in various sectors, particularly aerospace.
Abera Tullu, Jihyoung Cha, Sangho Ko
doaj +1 more source
Journal of the Association for Information Science and Technology, Volume 77, Issue 4, Page 624-639, April 2026.Abstract Timely detection of problematic research is essential for safeguarding scientific integrity. To explore whether social media commentary can serve as an early indicator of potentially problematic articles, this study analyzed 3815 tweets referencing 604 retracted articles and 3373 tweets referencing 668 comparable non‐retracted articles. Tweets
Er‐Te Zheng +3 more
wiley +1 more source
Jixie chuandong, 2018 Taking the MATLAB software as platform,on the premise of considering influence of nonlinear factor such as gear backlash etc on the dynamic performance of system,the digital simulation model of harmonic gear drive is built.
Hao Junwen
doaj
Mariner Mars 1969 SCAN control subsystem design and analysis [PDF]
Design and analysis of self correcting automatic navigation system for Mariner Mars ...
Horiuchi, H. H., Kerner, T.
core +1 more source
Health Science Reports, Volume 9, Issue 4, April 2026.ABSTRACT Background and Aims An unknown disease known as Disease X first surfaced in the Panzi Health Zone, Kwango Province, Democratic Republic of the Congo (DRC), towards the end of 2024. It mainly affected children under the age of five. The clinical characteristics and of the outbreak are examined in this review.
Muhammad Shaheer Bin Faheem +2 more
wiley +1 more source
People and Nature, Volume 8, Issue 4, Page 919-934, April 2026.Abstract Rewilding has gained significant influence in nature conservation, offering hopeful narratives that address the interconnected challenges of climate change and biodiversity loss while enabling people to reconnect with ‘wildness’ in the Anthropocene.
Flurina M. Wartmann, Emma Cary
wiley +1 more source
Nonlinear Dynamic Modeling of a Gear-Bearing Transmission System Based on Dynamic Meshing Parameters
MachinesThe nonlinear contact force between gears and bearings exhibits intricate dynamics. This paper focuses on the coupling relationship between the time-varying meshing parameters of the gears, dynamic backlash, and dynamic bearing clearance in gear-bearing ...
Jinzhou Song +7 more
doaj +1 more source
Development of a high stability pointing mechanism for wide application [PDF]
, 1982 A recurrent requirement of spaceborne instruments and communications equipment is that of accurate pointing. This need is recognizable in such diverse applications as Star Sensor trimming, Momentum Wheel gimballing, in-orbit adjustment or alignment of ...
Bentall, R. H., Brunnen, A. J. D.
core +1 more source
The Dynamic Nature of Nearshore Shark Nurseries in the Northern Gulf of Mexico
Journal of Biogeography, Volume 53, Issue 4, April 2026.ABSTRACT Aim Some habitats serve particularly important functions for wildlife. Identifying and appropriately managing these ‘essential habitats’ is critical, especially for wildlife that have faced severe population declines like sharks. Nursery habitats aid in the survival and development of juvenile sharks, which until recently were not formally ...
Philip Matich +5 more
wiley +1 more source
Jixie chuandong, 2019 To obtain more accurate dynamics change law for asymmetric involute gear， dynamics model of asymmetric involute gear is established by introducing time-varying stiffness and gear backlash.
Qi Chen +3 more
doaj