Results 111 to 120 of about 3,673 (300)

Analysis and Research on the Thermal E lasto-Hydrodynamic Lubrication of Involute Gears

Jixie chuandong, 1994
By combining the operating param eters of transmission gears .the thermal hydrodynamic analysis on spur invblute gears is given by means of a full numerical methods.
卢立新, 张和豪
doaj  

Equivalent calculation and experimental study on power skiving of low-angle spur face gears based on four-axis machine tool

Journal of Advanced Mechanical Design, Systems, and Manufacturing
The low-angle spur face gear transmission has the advantages of compact structure, small axial force, good torque-split effect, and insensitivity to installation errors, which shows great advantages in transmission structures such as helicopters and ...
Chuang JIANG, Lixiang WANG, Zhengyang HAN, Jing DENG   +3 more
doaj   +1 more source

A Scenario Tool for Sustainability Transformation in Fisheries and Beyond

Sustainable Development, EarlyView.
ABSTRACT The urgency to find sustainable management solutions intensifies with increasing natural resource scarcity. Resource sectors are usually characterized by diverse resource users. We developed a structured scenario tool designed to quantitatively assess policy options for achieving sustainability, accounting for ecological, economic and ...
Marie‐Catherine Riekhof, Tanja Hartig‐Thiemann, Christian Möllmann, Lotta Thaller, Rudi Voss, Heike Schwermer   +5 more
wiley   +1 more source

A Methodological Pathway for Supporting the Transition From Theory to Practice in Action‐Oriented Research for Transformative Change

Sustainable Development, EarlyView.
ABSTRACT Over recent decades, action‐oriented research has gained prominence in co‐producing actionable knowledge to drive transformative change toward sustainability. However, further methodological developments are needed to support the transition to the application phase of such knowledge.
María D. López‐Rodríguez, Amanda Jiménez‐Aceituno, Enrica Garau, Cristina Quintas‐Soriano, Juan Miguel Requena‐Mullor, Lena Rölfer, María Mancilla García, Antonio J. Castro   +7 more
wiley   +1 more source

渐开线弧齿圆柱齿轮的应力分析

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, 宋爱平, 王召垒, 徐香翠   +3 more
doaj  

Dynamic analysis of involute spur gears with asymmetric teeth

, 2008
New gear designs are needed because of the increasing performance requirements, such as high load capacity, high endurance, low cost, long life, and high speed.
Ekwaro-Osire, Stephen
core   +1 more source

National Policy Coherence Counts for Reducing Inequality in Global Climate and Development Agendas

Sustainable Development, EarlyView.
ABSTRACT International institutions promote policy coherence as crucial to the effective and fair implementation of global sustainability agendas, though the evidence for its benefits is slim. We present here the first systematic cross‐country dataset on the consequences of national government efforts to promote policy coherence for vulnerable groups ...
Katherine Browne, Adis Dzebo, Zoha Shawoo, Mario Cardenas, Pierrick Chalaye, Alexia Faus Onbargi, Cassilde Muhoza, Patricia Nicdao, Nokwethaba Makhanya, Navam Niles, Priyatma Singh   +10 more
wiley   +1 more source

直齿圆柱齿轮齿廓修行曲线优化设计

Jixie chuandong, 2010
The tooth profile modification can generally choose straight line modification and parabolic modification.Different modification curves have different modification parameters.In order to accurately determine the best modification curves and modification ...
袁哲, 孙志礼, 郭瑜
doaj  

An analytical approach for predicting the fillet and contact stresses in symmetric and asymmetric spur gears under frictional mesh assumptions

Results in Engineering
A precise estimation of the bending and contact stresses, as well as the true friction value during the gear mesh, are critical aspects of a cost-effective and safe gear design.
Ahmed A. Toman, Mohammad Q. Abdullah
doaj   +1 more source

Examining the Role of Economic Complexity and Climate Readiness in the Climate‐Fishing Nexus

Sustainable Development, EarlyView.
ABSTRACT This paper investigates the climate‐fisheries association in Gulf Cooperation Council (GCC) nations from 1999 to 2022. A key objective is to explore the role of both the economic complexity index (ECI) and the climate readiness factor (READ) in the climate‐fishing nexus.
Mohamed Sami Ben Ali, Alanoud Al‐Maadid, Hicham Ayad   +2 more
wiley   +1 more source