Results 121 to 130 of about 36,916 (301)
Effect of geometry and operating conditions on spur gear system power loss [PDF]
The results of an analysis of the effects of spur gear size, pitch, width, and ratio on total mesh power loss for a wide range of speeds, torques, and oil viscosities are presented. The analysis uses simple algebraic expressions to determine gear sliding,
Anderson, N. E., Loewenthal, S. H.
core +1 more source
Computational Modeling Develops Ultra-Hard Steel [PDF]
, 2007 Glenn Research Center's Mechanical Components Branch developed a spiral bevel or face gear test rig for testing thermal behavior, surface fatigue, strain, vibration, and noise; a full-scale, 500-horsepower helicopter main-rotor transmission testing stand;
core +1 more source
Doing More With Less: Cutting Food Loss and Waste in the EU and Its Impact on Food Security
Sustainable Development, EarlyView.ABSTRACT In September 2025, the European Parliament and Council signed the law of the Revision of the EU waste framework directive, which includes also reductions for food loss and waste (FLW). This comes at a time of concern over the EU's strategic autonomy for its agrifood sector.
George Philippidis +3 more
wiley +1 more source
Jixie chuandong, 2019 Aiming at the problem of time-varying friction in the meshing process of spur gear pair, the meshing model of spur gear pair is established, and the relative sliding velocity, rolling speed, sliding-rolling ratio, comprehensive radius of curvature and ...
Tao Zhang +3 more
doaj
Dynamic loading on parallel shaft gears [PDF]
A computer-based analysis of the dynamic effects of spur gear systems is presented. The method of analysis with its associated computer code is capable of determining the dynamic response of spur gear systems having involute tooth profiles and standard ...
Huston, R. L., Lin, H. H. (edward)
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Effect of operating conditions on gearbox noise [PDF]
, 1992 Low contact ratio spur gears were tested in the NASA gear noise rig to study the noise radiated from the top of the gearbox. The measured sound power from the gearbox top was obtained from a near field acoustic intensity scan taken at 63 nodes just above
Atherton, William +4 more
core +2 more sources
Sustainable Development, EarlyView.ABSTRACT The study examines the nonlinear relationships between sustainable and financial development metrics, including eco‐innovation, process eco‐innovation, financial development, financial inclusion, FinTech, economic complexity, and economic growth, across eight developing countries from 2000 to 2023.
Xing Zhao +5 more
wiley +1 more source
Jixie chuandong, 2010 The geometrical parameters of the involute arc cylindrical gear are introduced.Starting from their tooth flank equations,the equations of the lines of contact and contact ratio are analyzed.On this basis,it proposes the method for calculating the contact
吴伟伟 +3 more
doaj
Engineering Science and Technology, an International JournalThis study presents an approach based on the Taguchi method to evaluate the energy consumption performance of spur and elliptical gear hydraulic pumps. Output flow is one of the essential indicators of gear pump performance.
Mithat Yanikören
doaj +1 more source
Education in a Changing Climate: A Systematic Review for Low and Middle‐Income Countries (LMICs)
Sustainable Development, EarlyView.ABSTRACT Climate change is a major global challenge that affects many aspects of human life and hinders progress on the United Nations (UN) Sustainable Development Goals (SDGs). One area that has not received enough attention is its impact on children's education in low‐ and middle‐income countries (LMICs), which are especially vulnerable to ...
Afshan Ameer, Rami Ghannam
wiley +1 more source