Results 121 to 130 of about 5,948 (253)

Applying the Ecological Trap Concept to Cetaceans

Marine Mammal Science, Volume 42, Issue 2, April 2026.
ABSTRACT Wild animals may select poor‐quality habitats due to mismatches between perceived and actual habitat quality, creating ecological traps. Although well explored in terrestrial systems, this concept remains underutilized for marine species.
Stephane P. G. de Moura, Camila Domit, Mauricio Cantor   +2 more
wiley   +1 more source

Recovering and Improvement of the Ancient Chinese South-pointing Chariot

Jixie chuandong, 2018
To recover ancient Chinese south-pointing chariot,the principle of planetary gear trains and differential gear trains is studied. The structure of Lanchester south-pointing chariot is made of gear trains and body frame manufactured by 3 D printer.
Liu Zhao, Yang Muhan, Ma Kaiyue, Hu Zhuanliang   +3 more
doaj  

Kinematic Operating Modes of Two-Speed Two-Carrier Planetary Gear Trains with Four External Shafts [PDF]

, 2014
Two-speed planetary gear trains with four external shafts, composed of two simple planetary gear trains, are considered in this paper. The labelling system of these trains is defined and all possible variants are determined.
Dimitar Karaivanov, Roberto Žigulić, Sanjin Troha   +2 more
core   +1 more source

Harvesting the Spin–Orbit Interaction of Light to Generate Helicity‐Dependent Complex Rotational Motion in Optically Trapped Mesoscopic Matter

Nanophotonics, Volume 15, Issue 5, 16 March 2026.
Spin–orbit interaction (SOI) of light is exploited to generate helicity‐dependent complex rotational and revolution dynamics in optical tweezers. At the trap center, particle rotation is governed by the direct helicity that follows the input polarization.
Ram Nandan Kumar, Jeeban Kumar Nayak, Subhasish Dutta Gupta, Nirmalya Ghosh, Ayan Banerjee   +4 more
wiley   +1 more source

Research on Self-locking and Efficiency Maximization of 3K（Ⅲ） Type Planetary Gear Train Based on the Transmission Ratio Method

Jixie chuandong
The planetary gear train has compact structure, high transmission efficiency, and is widely used in industrial manufacturing. There is a wide application space for the planetary gear train of the self-locking mechanism.
Xu Mengchong, Sun Wei, Yang Yifan, Kong Jianyi, Su Pincheng   +4 more
doaj  

Power Flow and Efficiency for Planetary Gear Transmission

Jixie chuandong, 1998
Efficiency is an important characteristic of transmission quality for planetary trains.In order to calculate the efficiency for simple and complex planetary gear trains,a common formula is necessary.In this paper,a suitable formula is given,and the ...
Hu Maohong
doaj  

Study on nonlinear dynamics characteristics of dual speed dual clutch transmission system based on bond graph. [PDF]

Heliyon, 2023
Wu J, Yan H, Liu S, Ni.
europepmc   +1 more source

Drive train dynamic analysis [PDF]

A method for parametric variations in drive train dynamic analysis is described. The method models the individual components of a drive system, forms the appropriate system interface coordinates and, calculates the system dynamic response at particular ...
Giansante, N.
core   +1 more source

RELIABILITY OF MACHINE ELEMENTS IN WIND TURBINES [PDF]

, 2010
Worldwide electrical energy production generated by wind turbines grows at a rate of 30 percent. This doubles the total production every three years. At the same time the power of individual stations goes up by 20 percent annually.
Willi GRUENDER
core  

To Mars through LEO: How commercial space travel will change exploration‐enabling research

Experimental Physiology, EarlyView.
Christopher Puhl, Michail Magkos
wiley   +1 more source