Results 11 to 20 of about 45,133 (168)
On the conflict between science and ethics: the case of the moggel, Labeo umbratus (Teleostei: Cyprinidae) from South Africa [PDF]
Journal of Fish Biology, Volume 108, Issue 2, Page 596-608, February 2026.Abstract Recent molecular evidence showed that Labeo umbratus comprises two allopatrically distributed genetic lineages, a northern lineage confined to the Orange‐Vaal River system where this species was originally described and a southern lineage with three geographically separated haplogroups (western, central and eastern) distributed across multiple
Mpho Ramoejane +3 more
wiley +2 more sources
MODELING AND SIMULATION OF CYCLOID CURVES WITH APPLICATION IN ROBOTICS [PDF]
Fiabilitate şi Durabilitate, 2010 Mechanical power transmission by reducing the rotating speed under a constant transmission ratio represents the function of a large group of products known as speed reducers. Cycloid gearing roller (invented by L.
Lucia PASCALE +3 more
doaj +2 more sources
Studies on Epitrochoid Gear for Cycloid Drives
Journal of Mechanics, 2003 ABSTRACTCycloid drives are widely used in the industries because of their excellent characteristics, namely, high gear ratio, smooth transmission, compact size, high efficiency, low noise and long service life. In this paper, a mathematical model of an epitrochoid gear for a cycloid drive with a small tooth number difference has been proposed ...
Shinn-Liang Chang
openaire +2 more sources
Condition Monitoring of Helical Gears Using Acoustic Emission (AE) Technology [PDF]
, 2013 Techniques such as vibration monitoring, thermal analysis and oil analysis are well established as means to have been used to improve reliability of gearboxes and extend time-to-failure.
Hamel, Mhmod A. A.
core +7 more sources
SIMULATION AND MODELING OF CYCLOID GEARS USED IN ORIENTATION MECHANISM OF ROBOTS [PDF]
Fiabilitate şi Durabilitate, 2011 Cycloid reducers compared with classical reducers have low axial and radial gauge, high transmission ratio, and a better reliability. Cycloid gearing roller, through its qualities, has an important role in modern mechanical transmissions.
Lucia PASCALE +2 more
doaj +2 more sources
Modelling the Meshing of Cycloidal Gears [PDF]
Acta Mechanica et Automatica, 2016 Abstract Cycloidal drives belong to the group of planetary gear drives. The article presents the process of modelling a cycloidal gear. The full profile of the planetary gear is determined from the following parameters: ratio of the drive, eccentricity value, the equidistant (ring gear roller radius), epicycloid reduction ratio ...
Jerzy Nachimowicz +1 more
openaire +1 more source
On the synthesis of spatial cycloidal gears [PDF]
Meccanica, 2012 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
FIGLIOLINI, Giorgio +2 more
openaire +3 more sources
Diagnostics and prognostics with acoustic emission, vibration and spectrometric oil analysis for spur gears; a comparative study [PDF]
, 2005 Whilst vibration and spectrometric oil analysis for gear fault diagnosis are well established, the application of AE to this field is still in its infancy.
Mba, David +2 more
core +7 more sources
Parameter based definition of eccentric cycloid gearings
Forschung im Ingenieurwesen, 2023 AbstractCurrent challenges for today’s industry are an increase in gear ratio in one stage, an increase in load capacity as well as an increase in efficiency compared to standard gears. The standard tooth profile for cylindrical gears is an involute. This tooth profile has certain limits for external gearings regarding its geometry, e.g., undercutting ...
Stefan Landler +3 more
openaire +1 more source
Seeded fault detection on helical gears with acoustic emission [PDF]
, 2009 Acoustic emission (AE) is one of many technologies for health monitoring and diagnosis of rotating machines such as gearboxes. Although significant research has been undertaken in understanding the potential of AE in monitoring gearboxes this has been
Mba, David, Eftekharnejad, Babak
core +1 more source