Results 21 to 30 of about 12,267,792 (308)

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

Laser Propulsion Standardization Issues [PDF]

, 2010
It is a relevant issue in the research on laser propulsion that experimental results are treated seriously and that meaningful scientific comparison is possible between groups using different equipment and measurement techniques.
Sinko, John Elihu, Hans-Peter Röser, John E. Sinko, Stefan Scharring, Akihiro Sasoh, Eckel, Hans-Albert, Claude Phipps, Scharring, Stefan, Sasoh, Akihiro, Hans-Albert Eckel, Röser, Hans-Peter   +10 more
core   +1 more source

Overemphasized role of preceding strong El Niño in generating multi-year La Niña events

Nature Communications, 2023
Previous studies have emphasized the significance of a strong El Niño preceding La Niña (LN) in the formation of multi-year LN events due to the slow recharge-discharge ocean heat content process.
Ji-Won Kim, Jin-Yi Yu, Baijun Tian
doaj   +1 more source

Small-body encounters using solar sail propulsion [PDF]

, 2004
Cometary Rendezvous and Flybys have large V requirements, which impose almost unattainable, and sometimes prohibitive, demands on the propellant budget of conventional, chemical propulsion.
Colin R. McInnes, McInnes, Colin, Gareth W. Hughes, Hughes, Gareth W., Hughes, G.W., McInnes, Colin R., McInnes, C.R.   +6 more
core   +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, Jung-Hoon Kim, Cho Young Han   +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
doaj   +1 more source

Static highly elliptical orbits using hybrid low-thrust propulsion [PDF]

, 2012
The use of extended static-highly elliptical orbits, termed Taranis orbits, is considered for continuous observation of high latitude regions. Low-thrust propulsion is used to alter the critical inclination of Molniya-like orbits to any inclination ...
Macdonald, Malcolm, Anderson, Pamela
core   +1 more source

Design and Evaluation of Hybrid Drivetrain Damper Considering the Influence of Engine Misfire on Torsional Shock

Shock and Vibration
Engine misfire is an accidental failure mode in internal combustion vehicles that can lead to the malfunction of power transmission system components.
Guogeng Zhang, Tao Liu, Lingran Xie, Pengcheng Huang, Weilin Zhang, Xiaoxiang Yu, Xiaowen Song   +6 more
doaj   +1 more source

Circulating microRNA signatures of cachexia and cancer in Canis familiaris as a comparative oncology model for human disease

Molecular Oncology, EarlyView.
Circulating microRNAs as biomarkers of cachexia and sex‐specific cancer in senior dogs. In 25 client‐owned dogs, four circulating miRNAs (miR‐15a, miR‐15b, miR‐16, miR‐140) were downregulated in cachexia, with miR‐16 the strongest individual biomarker (AUC = 0.899).
Soon‐Seok Park, Kyongman An, Gyeonghwa Kim, Soo‐Nyun Choi, Hong‐Ki Lee, Keun Hur, Kyu‐Shik Jeong   +6 more
wiley   +1 more source

Turboelectric Distributed Propulsion System Modelling [PDF]

, 2013
The Blended-Wing-Body is a conceptual aircraft design with rear-mounted, over wing engines. Turboelectric distributed propulsion system with boundary layer ingestion has been considered for this aircraft.
Liu, Chengyuan
core