Results 41 to 50 of about 718,823 (190)

Drivers of tail evolution in squamates and their implications for the fossorial origin of snakes

open access: yesThe Anatomical Record, EarlyView.
Abstract The axial skeleton serves as the primary structural support in all vertebrates and is subdivided into five distinct regions: cervical, thoracic, lumbar, sacral, and caudal. Relaxation of constraints acting on the terminal end of the axial skeleton has led to remarkable variation in caudal vertebrae number across Squamata.
Olivia Binfield   +2 more
wiley   +1 more source

Force Simulation of Cycloid Gear of Horizontal Three-Gear Cycloid Reducer

open access: yes, 2011
The speed reducer with three cycloid gears, namely FA high-precision drive speed reducer, is the most advanced drive device all over the world. The speed reducer has the advantages of small size, little weight, large drive range, long service life, good ...
Tian Min Guan   +2 more
core   +1 more source

Enhanced Control Strategies for Residual‐Vibration Suppression and Adaptive Tracking in Flexible Manipulator Under Unknown Bounded Disturbances

open access: yesInternational Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT This paper proposes a hybrid control strategy for flexible‐link manipulators that combines offline trajectory planning with adaptive tracking to suppress residual elastic vibration (REV) under unknown bounded disturbances. A rigid–flexible coupling dynamics model is first established using the floating‐frame method and Lagrange's equations ...
Mingming Shi   +5 more
wiley   +1 more source

Force Calculation of Cycloid Gear at Three Supporting Points Of Gear Pin for Speed Reducer with Three Cycloid Gears

open access: yes, 2011
FA high-precision drive, namely cycloid driving speed reducer with three cycloid gears, adopts the new driving structure of three cycloid gears at eccentric angle of 120 between each other.
Tian Min Guan, Ying Shi Sun, Xu Zhang
core   +1 more source

Dynamic Wave Trains: A Procedural Approach to Spatially Varying Ocean Synthesis

open access: yesComputer Graphics Forum, EarlyView.
In this paper, we present a high performance procedural model capable of synthesizing and rendering a virtually infinite ocean. Our method exhibits spatial variations as the orientations, speed and choppiness of the waves is parametrized for each frequencies and each point in space. The provided visual abstract exhibits a sunset rendering of a large 40 
Romain Fournier   +4 more
wiley   +1 more source

基于新型摆线包络行星减速器的电动轮毂

open access: yesJixie chuandong, 2014
Nowadays the technology of electric wheel is widely used in new energy vehicles.An electric wheel based on a new type of cycloid envelope planetary reducer is proposed.The PM brushless DC motor is selected as a power source.The cycloid envelope planetary
陈治宇, 梁栋, 李朝阳
doaj  

Conservation and management implications of genetic and geometric scale variation in the ancient fish giant featherback (Chitala lopis)

open access: yesJournal of Fish Biology, EarlyView.
Abstract Giant featherback (Chitala lopis) is an ancient species of freshwater fish considered globally extinct until extant populations were re‐discovered in the Sundaland region of Indonesia in 2022. To improve management of the remaining populations, this study used genomic DNA and landmark‐based geometric morphometric analyses of fish scales to ...
Boby Muslimin   +23 more
wiley   +1 more source

Determination of surface singularities of a cycloidal gear drive with inner meshing

open access: yesMathematical and Computer Modelling, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yii-Wen Hwang, Chiu-Fan Hsieh
openaire   +3 more sources

Parametric Modeling of a Cycloid Drive Relative to Input Shaft Angle [PDF]

open access: yes, 2015
Creating an equidistant of the shortened epitrochoid curve for a cycloid drive disc is a complex process. By automating this process using a parametric input curve drawing program, the geometry can be precisely defined.
Blagojevic, Mirko   +4 more
core  

Analysis of Cycloidal Pinwheel Drive Lubrication Characteristic based on Fractal Rough Surface

open access: yesJixie chuandong, 2020
Combining the surface topography model of pin tooth and cycloid tooth constructed by fractal theory,and the proposed film thickness formula of line contact lubricated with grease based on the Herschel-Bulkley model,the minimum film thickness in the ...
Fushuai Zhang   +3 more
doaj  

Home - About - Disclaimer - Privacy