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Analysis of Key Technologies for New Green Marine Propulsion Systems [PDF]
E3S Web of Conferences, 2020 The new green Marine propulsion system, as a new generation of marine propulsion, has advantages of strong mobility, low fuel consumption, low noise, safety and comfort.
Duan Zheng +3 more
doaj +1 more source
Vibration analysis of ship propulsion shafting bearings [PDF]
E3S Web of Conferences, 2021 The ship power propulsion system is the "heart" of the ship, and the ship propulsion shafting is the core unit of the ship power propulsion system, and it is an indispensable part of the ship's propulsion torque and thrust transmission.
Shuo Chen, Heng Zhang
doaj +1 more source
Modelling and Preliminary Prediction of Thermal Balance Test for COMS
Journal of Astronomy and Space Sciences, 2009 COMS (Communication, Ocean and Meteorological Satellite) is a geostationary satellite and developed by KARI for communication, ocean and meteorological observations.
Hyoung Yoll Jun +2 more
doaj +1 more source
The investigation of vibration characteristics on the bolted disk–drum joints structure
Advances in Mechanical Engineering, 2019 In a bolted disk–drum joints structure, assembly parameters, such as the number and pretightening force of the tightening bolts, will affect the vibration characteristics of the structure. In this article, the influences are discussed.
Fei Wang, Jiang Li, Yu-qi Li, Zhong Luo
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Shock and VibrationEngine misfire is an accidental failure mode in internal combustion vehicles that can lead to the malfunction of power transmission system components.
Guogeng Zhang +6 more
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Structural and biochemical analysis of a B12 superbinder
FEBS Letters, EarlyView.BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices +3 more
wiley +1 more source
Displaced geostationary orbit design using hybrid sail propulsion [PDF]
, 2011 Due to an increase in number of geostationary spacecraft and limits imposed by east-west spacing requirements, the geostationary orbit is becoming congested.
Biggs, James +3 more
core +3 more sources
Artificial molecular machines and motors—Design and control of nanoscale motion
FEBS Letters, EarlyView.Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley +1 more source
LubricantsAiming at the problem of abnormal wear caused by the poor dynamic characteristics of aeroengine segmented annular seals, according to the hydrodynamic lubrication theory, based on the conventional structure featuring the Rayleigh step profile rectangular
Shuang Wang +4 more
doaj +1 more source
Entropy, 2019 Inter-shaft bearing as a key component of turbomachinery is a major source of catastrophic accidents. Due to the requirement of high sampling frequency and high sensitivity to impact signals, AE (Acoustic Emission) signals are widely applied to monitor ...
Jing Tian +5 more
doaj +1 more source