Results 71 to 80 of about 30,356 (218)
The spread of non‐native species
Biological Reviews, EarlyView.ABSTRACT The global redistribution of species through human agency is one of the defining ecological signatures of the Anthropocene, with biological invasions reshaping biodiversity patterns, ecosystem processes and services, and species interactions globally.
Phillip J. Haubrock +16 more
wiley +1 more source
Jixie chuandong, 2007 For realizing steel worm gearing by gear oil,test study of the transimission function of steel worm gearing under lubication condition of gear oil and copper-steel worm gearing under lubrication condition of worm oil is carried out .The results indicate ...
何韶君, 刘晓东
doaj
Deflection Form Factors of Worm and Worm Gear
Journal of Mechanics, 2006 AbstractIn this study, a simplified method for evaluating amount of deflection for the tooth of worm and worm gear under loading is proposed. In a previous study, the plate theory was used for the approximation. However, it was found that the deflection of gear tooth using the plate theory was far from the actual value, and that the values from 3D FE ...
M. Y. Chung, D. Shaw
openaire +1 more source
Energy efficiency measurement procedure for gearboxes in their entire operating range [PDF]
, 2014 Over the last decade, forced regulations and a growing social awareness with respect to energy efficiency have resulted in a renewed interest in the research for high efficient electrical machines.
Algoet, Elewijn +5 more
core +1 more source
Advances in Triboelectric Nanogenerators With Rotating Structure
Carbon Energy, EarlyView.The rotating TENG has been widely studied for its superiorities of simple structure, high efficiency, and stable output. This review introduced the four different principles of rotating TENG and offered a thorough summary for performance and application research through three‐level classification. Importantly, the current existing problems, challenges,
Chuguo Zhang +4 more
wiley +1 more source
Continuous turning slip ring assembly Patent [PDF]
, 1968 Development of slip ring assembly with inner and outer peripheral surfaces used as electrical contacts for ...
Lowe, E. G.
core +1 more source
Deep Underground Science and Engineering, EarlyView.An experimental device for physical simulation of hydraulic fracturing, comprising: a load‐bearing mechanism with multiple interconnected plates that collectively form an sample chamber; a load‐generating mechanisms, with multiple load‐generating mechanisms arranged within the experimental chamber.
Delei Shang +5 more
wiley +1 more source
Jixie chuandong, 2012 The Torsen differential increase torque ratio and automatically adjust torque distribution according to the change of rotation speed difference by direct and inverse two pairs of worm gear and the worm driving with the characteristics of high friction ...
王欢, 孙传琼, 刘雍德, 李善杰
doaj
Ecography, EarlyView.Correlative species distribution models (SDMs) are quantitative tools in biogeography and macroecology. Building upon the ecological niche concept, they correlate environmental covariates to species presence to model habitat suitability and predict species distributions.
Moritz Klaassen +3 more
wiley +1 more source
Investigation of the Design Method of Worm-gear Hob
Jixie chuandong, 2015 In comparison to the industrial countries,our design principle and approach of wormgear hobs are not completed.There are no clear and accurate equations of worm-gear hob design,so do equations of machine settings of hob after re-sharpening.The basic ...
Chen Ningxin
doaj