Results 111 to 120 of about 2,170 (266)

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

open access: yesSustainable 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   +10 more
wiley   +1 more source

Influence of Asymmetric Mesh Stiffness on Dynamics of Spiral Bevel Gear Transmission System

open access: yes, 2010
An 8-DOF (degrees-of-freedom) nonlinear dynamic model of a spiral bevel gear pair which involves time-varying mesh stiffness, transmission error, backlash, and asymmetric mesh stiffness is established.
Li Guiyan, Li Yinong, Zheng Ling
core   +1 more source

Bridging Global Sustainability Objectives With Corporate Reporting Standards: Sustainable Development Goals Meet European Sustainability Reporting Standards

open access: yesSustainable Development, EarlyView.
ABSTRACT Given the complexity of the Sustainable Development Goals (SDGs), aligning corporate sustainability with them can be challenging. Drawing on systems thinking, this study examines how the European Sustainability Reporting Standards (ESRS) align with the SDGs and bridge macro‐level global goals with firm‐level metrics.
Chonlawan Thammaraksa   +3 more
wiley   +1 more source

Supply Chain Positioning and Crowdfunding Success: Evidence From Food Waste Initiatives for a Sustainable Development

open access: yesSustainable Development, EarlyView.
ABSTRACT This study investigates the role of sustainability initiatives positioning for the success of crowdfunding campaigns. The study examines the context of food waste crowdfunding campaigns, comparing cases where the initiative is placed in the early stages of the supply chain with cases where the initiative is placed at the end of the supply ...
Xinjian Chen   +3 more
wiley   +1 more source

Parametric Modeling and Contact Stress Analysis of Asymmetric Modified Helical Gears

open access: yesJixie chuandong
In order to construct an accurate model of asymmetric involute modified helical gears and analyze the influence of pressure angles on its contact stress, based on the gear meshing principle and the secondary development of SolidWorks in C#, a ...
Lin Jiaxiang   +3 more
doaj  

Key Technical Fields and Future Outlooks of Space Manipulators: A Survey

open access: yesSmartBot, EarlyView.
This paper systematically reviews the technological development of space manipulators, emphasizing the unique challenges posed by space environments. It examines four areas: structural design, modeling, planning, and control, while introducing typical ground test platforms.
Gang Chen   +12 more
wiley   +1 more source

基于ANSYS的非对称齿轮应力分析

open access: yesJixie chuandong, 2013
The geometrical parameter of the asymmetric gear are derived,the tooth profile of is resolved,five sets of asymmetric gears with the pressure angles of 20°/20°、25°/25°、20°/25°、20°/30°、25°/20°、 30°/20° bending stress analysis are carried out to ...
张海伟
doaj  

Investigating the Fatigue Life of Asymmetric and Novel Helical Gear Drives

open access: yes
The present research work investigates the contact and bending fatigue life of asymmetric helical gear and novel helical gear based on the finite element analysis.
S, Rajesh, Mr
core   +1 more source

A novel method for calculation gear tooth stiffness for dynamic analysis of spur gears with asymmetric teeth

open access: yes, 2015
Bu çalışma, 14-20 Kasım 2014 tarihlerinde Montreal[Kanada]'da düzenlenen ASME International Mechanical Engineering Congress and Exposition (IMECE)'de bildiri olarak sunulmuştur.Recently, there have been a number of research activities on spur gears with ...
Ekwaro-Osire, Stephen
core   +1 more source

DNA‐Enzyme Hybrid Nanostructures: Functional Materials to Modulate Enzymatic Activity

open access: yesSmall, EarlyView.
DNA–enzyme hybrid nanostructures enable precise spatial and stoichiometric control over enzyme organization, offering a powerful platform to modulate catalytic activity. This review critically evaluates key mechanistic hypotheses, including proximity effects, microenvironment changes, confinement, and stabilization, as well as highlighting ...
Manar Elnaggar, Amelie Heuer‐Jungemann
wiley   +1 more source

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